JP2008088852A - Package type compressor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve cooling efficiency of a compressor main body by circulating cooling air in a package to efficiently cool the compressor main body. <P>SOLUTION: An air intake port 8 taking air into a package 1 from an outside is positioned and provided on another end side on an axially opposite side to a cooling air inflow port 30 of a cooling air guide 26 in the package 1. Consequently, air taken in from the air intake port 8 can be introduced from the cooling air inflow port 30 of the cooling air guide 26 via a periphery of the compressor main body 12. Moreover, the compressor 12 can circulate cooling air toward an outflow port 31 from the inflow port 30 in the cooling air guide 26. Consequently, the compressor main body 12 can be efficiently cooled by flow of two systems of cooling air flowing in the package 1 and cooling air flowing in the cooling air guide 26. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a package type compressor having a configuration in which, for example, a compressor body, a cooling air guide and the like are surrounded by a package.

  Generally, a package type compressor has a soundproof structure including a compressor body that compresses air, a cooling fan that circulates cooling air around the compressor body, an air tank that stores compressed air discharged from the compressor body, and the like. It becomes the structure accommodated in the package which has. Thereby, at the time of compression operation, it is possible to reduce noise and improve safety by the compressor body and the cooling fan.

  Further, as described above, noise is generated by the compressor main body including the electric motor, the compression unit, the cooling fan, and the like, and the air tank itself does not generate noise. In addition, the air tank is larger than the compressor body, and the package becomes large when surrounding the air tank.

  Therefore, some package type compressors have a configuration in which only a compressor main body, a cooling air guide, and the like that are sources of noise are surrounded by a package (see, for example, Patent Document 1 and Patent Document 2).

  In addition, there is one in which only the compressor main body is forcibly cooled in order to increase the cooling efficiency of the compressor main body (see, for example, Patent Document 3).

Japanese Utility Model Publication No. 53-160006 JP 50-115309 A JP 2002-276573 A

  The package compressor according to Patent Document 1 has a configuration in which an air intake port is arranged on the front surface and a discharge port is arranged on the back surface so as not to take in the cooling air discharged in a state where the temperature has risen again. .

  Moreover, the package type compressor by patent document 2 takes in cooling air by pushing out the air in a package with a cooling fan, and is supplying it around the compressor main body. Separately, cooling air is supplied to the engine radiator, which is a power source, by an electric fan.

  In order to increase the cooling efficiency of the compressor main body, the compressor according to Patent Document 3 is provided with a fan in the compression unit, and by providing a guide that covers the compression unit and the fan, the compression unit is forcibly cooled. is there.

  By the way, in the package type compressor by patent document 1 mentioned above, the intake of the cooling air is arrange | positioned in the front, the cooling fan is provided facing this intake, and the sound generated with this cooling fan is directly heard. There was a problem of leaking outside.

  Moreover, in the package type compressor by patent document 2, since a compressor main body and an engine are cooled using a separate fan, a package type compressor will enlarge. Moreover, the package type compressor according to Patent Document 2 has a problem in that the cooling efficiency is poor because the cooling air for cooling the compressor body passes through the entire room in which the compressor body is provided.

  Furthermore, in the compressor according to Patent Document 3, although the cooling efficiency is increased by providing the guide, air is forcibly sucked into the narrow guide, so that there is a problem that a loud noise is generated at the entrance of the guide.

  The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to efficiently distribute cooling air in a package, improving the cooling efficiency of the compressor body and suppressing noise. It is to provide a package type compressor.

  A package type compressor according to the present invention includes a package having a soundproof structure, an electric motor disposed in the package, a compression section that is driven by the electric motor to compress sucked air, and a cooling fan that generates cooling air. And a cooling air guide that is provided along the outside of the compressor body and that circulates the cooling air from the cooling fan from one side in the axial direction to the other side of the compressor body. .

  In order to solve the above-described problem, the feature of the configuration adopted by the invention of claim 1 is that the package is located on the side of the cooling air guide and takes air into the package from the outside. For this purpose, an air intake port is provided, and air sucked from the air intake port is introduced from the cooling air inlet on one end side of the cooling air guide through the periphery of the compressor body.

  According to a second aspect of the present invention, the compressor body has the electric motor, the compression unit, and the cooling fan arranged in series in the axial direction, and the cooling air guide is cooled between the electric motor and the outer periphery of the compression unit. An air passage is defined, and the cooling air generated by the cooling fan is configured to flow through the cooling air passage from one end side in the axial direction to the other end side.

  According to the invention of claim 3, the package is provided with a cover that covers the air intake, and the cover is provided with an external air intake that opens to the outside at a position shifted to one side of the air intake. It is in that.

  According to the invention of claim 4, the suction port provided in the compression part of the compressor main body is arranged at a position corresponding to the air intake port of the package.

  According to a fifth aspect of the present invention, the package is provided with a shielding plate that partially shields between the suction port and the cooling air inlet of the cooling air guide.

  According to the invention of claim 6, the shielding plate is configured to shield the upper portion of the compressor body from the outside of the cooling air guide and to communicate the lower portion.

  According to a seventh aspect of the present invention, the package is provided with an external discharge port that is located on the other end side in the axial direction and discharges cooling air that has cooled the compressor main body to the outside.

  According to an eighth aspect of the present invention, the package is provided with an exhaust duct that communicates a cooling air outlet provided in the cooling air guide with an external discharge port of the package.

  According to the ninth aspect of the present invention, a discharge pipe for guiding the compressed air discharged from the compression portion of the compressor main body is disposed in the exhaust duct.

  According to the invention of claim 10, the exhaust duct is provided with a cooling means for cooling the compressed air discharged from the compressor body.

  According to an eleventh aspect of the present invention, an air tank for storing compressed air discharged from the compressor main body is provided adjacent to the package.

  According to a twelfth aspect of the present invention, the package is placed on the air tank via a pedestal that supports the compressor body, and an air intake port of the package is provided on the pedestal so as to face the air tank. It is in the configuration.

  According to a thirteenth aspect of the present invention, the package is provided with an exhaust duct that communicates with a cooling air outlet provided in the cooling air guide, and a front end side of the exhaust duct opens toward the air tank; It is to have done.

  According to the invention of claim 14, a discharge pipe for supplying compressed air discharged from the compression portion of the compressor body to the air tank is disposed in the exhaust duct.

  According to a fifteenth aspect of the present invention, a plurality of the compressor main bodies are provided in the package, and the package is provided with the air intake according to the number of the compressor main bodies.

  According to the first aspect of the present invention, the cooling air guide can intensively cool a portion that particularly requires cooling, and an air intake port for taking air into the package from the outside is provided on the side of the cooling air guide. Since it is arranged, the sound generated on one end side of the cooling air guide does not leak directly from the air intake port, so that cooling can be performed effectively and the generation of noise can be suppressed.

  According to the invention of claim 2, the cooling air guide distributes the cooling air from the cooling fan from one end side in the axial direction to the other end side in the cooling air passage between the electric motor and the outer periphery of the compression unit. Can do. At this time, since the compressor main body has the electric motor, the compression unit, and the cooling fan arranged in series in the axial direction, the cooling air that flows from one end side to the other end side in the axial direction Can be efficiently cooled.

  According to the third aspect of the present invention, the air intake port is covered with the cover, and the cover is provided with the external air intake port at a position shifted to one side of the air intake port. Thereby, since the cover can cover the air intake port, the noise that has passed through the air intake port can be blocked and the noise during operation can be reduced. Moreover, since the cooling air flows into the cover from the external air intake, it can be reliably taken into the package through the air intake. Furthermore, the external air inlet can be opened at all times even when the package type compressor is installed near the wall by opening in parallel along the package.

  According to the invention of claim 4, the suction port for sucking air into the compression part of the compressor main body can suck the air that has just flowed in from the air intake port of the package. Thereby, the compression unit can efficiently perform the compression work by sucking cold air.

  According to the fifth aspect of the present invention, much air that has not been sucked into the suction port of the compressor body becomes cooling air and flows toward one end side of the cooling air guide. At this time, the shielding plate can block the flow of the cooling air partially to supply the cooling air toward a portion that requires cooling.

  According to the sixth aspect of the present invention, the shielding plate that shields the upper portion of the compressor body from the outside of the cooling air guide can circulate the cooling air in the lower portion of the compressor body where the lubricating oil accumulates. Thereby, the temperature rise of the lubricating oil can be suppressed and the life can be extended, and the maintenance work of the compressor body can be simplified and the reliability can be improved.

  According to the invention of claim 7, since the package has the external discharge port provided on the other end side of the cooling air guide, the cooling air that has cooled the compressor body is discharged from the external discharge port to the other side. be able to.

  According to the invention of claim 8, since the exhaust duct communicates the cooling air outlet of the cooling air guide and the external outlet of the package, the cooling air having an increased temperature flowing out from the outlet of the cooling air guide is The entire amount can be discharged to the outside from the external discharge port through the exhaust duct. As a result, it is possible to prevent a situation in which the cooling air whose temperature has risen is taken into the cooling air guide again, thereby improving the cooling efficiency. In addition, it is possible to prevent the air whose temperature has risen from being sucked into the compressor body again, and the compression efficiency can be improved.

  According to invention of Claim 9, compressed air can be guide | induced to these by connecting an air tank, a pneumatic apparatus, etc. to the front-end | tip of a discharge pipe. Moreover, since the discharge pipe is disposed in the exhaust duct, the compressed air flowing through the discharge pipe can be cooled by the cooling air flowing through the exhaust duct.

  According to the invention of claim 10, the cooling means provided in the exhaust duct can cool the compressed air flowing through the discharge pipe, and can efficiently supply to the air tank or the like while suppressing thermal expansion.

  According to the invention of claim 11, the compressed air discharged from the compressor main body can be supplied to an air tank provided adjacent to the package, and the air tank can store the compressed air.

  According to the twelfth aspect of the present invention, the air intake provided in the pedestal of the package can take in air without being obstructed by a surrounding wall or the like using a gap with the air tank.

  According to the invention of claim 13, since the exhaust duct communicates the cooling air outlet of the cooling air guide and the external outlet of the package, the cooling air whose temperature has risen out of the outlet of the cooling air guide is The entire amount can be discharged to the outside from the external discharge port through the exhaust duct. Thereby, it is possible to prevent the cooling air whose temperature has risen from being taken into the cooling air guide again, and the cooling efficiency can be improved. In addition, since the exhaust duct is opened at the front end side toward the air tank, the air tank can be cooled using the cooling air discharged to the outside from the exhaust duct.

  According to invention of Claim 14, the discharge pipe can supply the compressed air from a compressor main body to an air tank. At this time, since the discharge pipe is disposed in the exhaust duct, the compressed air flowing through the discharge pipe can be cooled by the cooling air flowing through the exhaust duct.

  According to the invention of claim 15, by providing a plurality of compressor main bodies in the package, a large amount of compressed air or high-pressure compressed air can be provided. Since the package has air intakes according to the number of built-in compressor bodies, all the compressor bodies can be efficiently cooled by the cooling air flowing from the air intakes.

  Hereinafter, a package type compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  First, FIGS. 1 to 12 show a first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a package constituting the outer shape of a package type compressor. This package 1 is formed as a substantially rectangular parallelepiped box surrounded by a plurality of steel plates, for example, and has a soundproof structure. As shown in FIGS. 1 to 4, the package 1 includes a pedestal 2 on which a compressor body 12 described later is mounted, a left panel 3 erected on the left side of the pedestal 2, and a right side of the pedestal 2. The right panel 4 provided, the front panel 5 provided on the front surface between the left panel 3 and the right panel 4, and the back surface between the left panel 3 and the right panel 4 from the top to the top. The rear panel 6 and the ceiling panel 7 are roughly configured.

  Reference numeral 2 denotes a pedestal serving as a base of the package 1. The pedestal 2 supports a compressor main body 12 to be described later, and is formed as a rectangular support base that is long in the left and right directions in the axial direction of the compressor main body 12. The pedestal 2 can be fixed to a floor surface of a factory or the like, and wheels (none of which are shown) for moving can be attached.

  Reference numeral 3 denotes a left panel that is erected along the left edge that is one end of the base 2. The left panel 3 is formed in a box shape that is narrow in the left and right directions, and a lower end portion thereof is bolted to the base 2. The front surface 3A of the left panel 3 also serves as an operation panel to which the operation switch 3B and the like are attached. As shown in FIG. 2, the left end surface 3C of the left panel 3 is formed as a closing plate without an opening or the like for taking in and out air.

  Reference numeral 4 denotes a right panel that is erected along the right edge that is the other end of the base 2 so as to face the left panel 3. The right panel 4 is formed in a box shape narrow in the left and right directions, and a lower end portion thereof is bolted to the base 2. In addition, the right end surface 4A of the right panel 4 is provided with a discharge pipe insertion hole 4B that is positioned substantially at the center and through which a discharge pipe 24 described later is passed, as shown in FIG. Furthermore, an external discharge port 11 described later is provided around the discharge pipe insertion hole 4B on the right end surface 4A of the right panel 4.

  A front panel 5 is located between the left panel 3 and the right panel 4 and covers the front surface, and the front panel 5 is formed in a rectangular shape that is long in the left and right directions. And the lower end part of the front panel 5 is bolted to the base 2, and the upper end part is bolted to the front edge of the ceiling panel 7 described later. The front panel 5 is provided with an air intake 8 and an intake cover 9 which will be described later.

  Reference numeral 6 denotes a rear panel that is positioned between the left panel 3 and the right panel 4 and covers the back surface, and 7 is a ceiling panel that covers the top surface. The rear panel 6 and the ceiling panel 7 are integrally formed by bending a plate material into an L shape. The rear panel 6 is formed in a rectangular shape that is long in the left and right directions, and the lower end thereof is bolted to the pedestal 2 in substantially the same manner as the front panel 5. On the other hand, the ceiling panel 7 is formed in a rectangular shape elongated in the left and right directions, and the left and right ends thereof are bolted to the left panel 3 and the right panel 4. Further, similarly to the front panel 5, the rear panel 6 is provided with an air intake port 8 and an intake port cover 9 which will be described later.

  Reference numerals 8 and 8 denote air intakes provided in the front panel 5 and the rear panel 6, respectively. The air intake 8 is provided on the left and right sides of a cooling air guide 26 described later. The air intake 8 is an opening for taking outside air into the package 1 and is formed in a rectangular shape extending upward and downward. Specifically, each air intake 8 is provided on the other end side opposite to the cooling air inlet 30 of the cooling air guide 26 in the axial direction, that is, on the right end side of each panel 5, 6. Thus, the air intake 8 can cause the sucked air to flow into the inlet 30 of the cooling air guide 26 via the periphery of the compressor body 12.

  Reference numerals 9 and 9 denote intake covers provided on the front panel 5 and the rear panel 6 so as to cover the air intakes 8 and 8, respectively. As shown in FIGS. 3 and 4, these intake covers 9 are formed in a box shape that opens toward the left side, and are arranged on the outer surfaces of the front panel 5 and the rear panel 6 so that the air intake 8 is in the back position. Installed. Thereby, each intake cover 9 can be provided with the external air intake 10 at a position shifted to the left side which is one side with respect to the air intake 8.

  Since each intake cover 9 can cover the air intake 8, noise that has passed through the air intake 8 can be blocked. Further, each intake cover 9 can receive cooling air from the external air intake 10, and can reliably take cooling air into the package 1 through the air intake 8. Further, the external air intake 10 that opens in parallel along the front panel 5 and the rear panel 6 of the package 1 can always be opened even when the intake cover 9 is attached to the wall.

  Reference numeral 11 denotes an external discharge port provided on the right end surface 4A of the right panel 4. The external discharge port 11 cools the compressor body 12 and discharges the cooling air flowing out from the cooling air guide 26 to the outside of the package 1. Is. The external discharge port 11 is formed as a mesh-shaped opening that is wide in the lateral direction so as to suppress noise leakage.

  Reference numeral 12 denotes a compressor body provided in the package 1. The compressor main body 12 sucks and compresses air and discharges the compressed air, and is configured as, for example, a scroll type air compressor. Further, as shown in FIG. 5, the compressor body 12 includes a casing 13, a compression unit 18, a cooling fan 25, and the like which will be described later.

  Reference numeral 13 denotes a casing that forms an outer frame of the compressor body 12, and the casing 13 is disposed horizontally so that the axis thereof is in the left and right directions of the package 1. As shown in FIG. 5, the casing 13 is roughly constituted by a motor case 14, a compression part case 15, and the like which will be described later.

  Reference numeral 14 denotes a motor case in which an electric motor 16 described later is accommodated. The motor case 14 is formed in a bottomed cylindrical shape in which one side in the axial direction on the left side of the package 1 is opened and the other side on the right side is closed, and a lid portion of a compression unit case 15 described later is formed on the opening side. 15A is attached. A plurality of radiation fins 14 </ b> A are provided on the outer peripheral side of the motor case 14. Further, the lower side of the motor case 14 is an oil tank 14B for storing oil for cooling and lubrication.

  Furthermore, as shown in FIGS. 5 and 6, support legs 14C are provided at the lower end of the motor case 14 so as to sandwich the oil tank 14B. Further, between the support legs 14C is a passage portion 14D that constitutes a part of a lower cooling air passage 26B of a cooling air guide 26 described later.

  Reference numeral 15 denotes a compression portion case provided on the opening side of the motor case 14, and the compression portion case 15 is integrally formed with a lid portion 15 </ b> A that covers the opening side of the motor case 14. Further, the compression case 15 is provided with an annular recess 15B disposed in a state where the end plate 20A of the orbiting scroll 20, which will be described later, is slidably contacted. We are accepting between.

  Reference numeral 16 denotes an electric motor provided in the motor case 14 of the casing 13. The electric motor 16 is arranged on a cylindrical stator 16A fixed to the inner peripheral side of the motor case 14 and rotatably arranged on the inner peripheral side of the stator 16A, and is integrally attached to a drive shaft 17 described later. The rotor 16B is generally constituted. The electric motor 16 is arranged in series in the axial direction with respect to a compression unit 18 and a cooling fan 25 described later, and rotationally drives the drive shaft 17 by being supplied with power from the outside.

  Reference numeral 17 denotes a drive shaft that is rotatably provided on the casing 13. The drive shaft 17 is integrally attached in the rotor 16 </ b> B of the electric motor 16. One end side of the drive shaft 17 protrudes from the motor case 14, and a cooling fan 25 described later is provided on the protruding end side. On the other hand, the other end side of the drive shaft 17 protrudes from the cover portion 15A of the compression portion case 15 to form a crank 17A.

  Reference numeral 18 denotes a compression unit of the compressor body 12. The compression unit 18 is driven by the electric motor 16 so as to compress and discharge the sucked air. The compression unit 18 includes a fixed scroll 19 and a turning scroll 20 which will be described later.

  Reference numeral 19 denotes a fixed scroll provided in the compression unit case 15 of the casing 13. The fixed scroll 19 surrounds the disc-shaped end plate 19A disposed coaxially with the drive shaft 17, the spiral wrap portion 19B standing on the surface of the end plate 19A, and the wrap portion 19B. A cylindrical portion 19C that protrudes in the axial direction from the outer peripheral side of the end plate 19A toward the orbiting scroll 20, an annular flange portion 19D that protrudes radially outward from the protruding end side of the cylindrical portion 19C, and a rear surface side of the end plate 19A The plurality of heat dissipating fins 19E are provided.

  Reference numeral 20 denotes an orbiting scroll which is located in the casing 13 and is provided on the drive shaft 17 so as to be orbitable. The orbiting scroll 20 includes a disc-shaped end plate 20A and a spiral wrap portion 20B standing on the surface of the end plate 20A, and the center of the end plate 20A is rotatably attached to the crank 17A of the drive shaft 17. It has been.

  Here, the compression unit 18 is arranged so that the wrap portion 20B of the orbiting scroll 20 is overlapped with the wrap portion 19B of the fixed scroll 19 with a shift of 180 degrees, for example. Thereby, the some compression chamber 21 can be defined between these lap | wrap parts 19B and 20B. Then, the compression unit 18 sequentially compresses the air sucked from the suction filter 22 described later into the compression chamber 21 on the outer peripheral side as the orbiting scroll 20 performs the turning motion, while discharging the later-described discharge from the compression chamber 21 on the center side. Compressed air is discharged to the outside through the outlet 23.

  Reference numeral 22 denotes, for example, two suction filters provided on the outer peripheral side of the fixed scroll 19, and each of the suction filters 22 removes dust and the like in the sucked air. Each suction filter 22 forms part of a suction port (not shown) provided in the fixed scroll 19 and is connected to the suction port.

  Here, each suction filter 22 is disposed at a position corresponding to the air intake 8 of the package 1 (position aligned in the vicinity of the air intake 8). Thereby, the suction filter 22 can suck in the air that has just flowed in from the air intake port 8, and the compressor body 12 can improve the compression efficiency by sucking cold air.

  Reference numeral 23 denotes a discharge port provided near the center of the end plate 19 </ b> A of the fixed scroll 19. The discharge port 23 discharges compressed air from the compression chamber 21 on the center side to the outside.

  Reference numeral 24 denotes a discharge pipe (see FIGS. 2, 3 and the like) connected to the discharge port 23. The discharge pipe 24 guides compressed air discharged from the compression unit 18 of the compressor body 12 to the outside. It is. Further, the discharge pipe 24 extends straight from the fixed scroll 19 toward the other side, and the tip side thereof passes through an exhaust duct 33 (described later) from the discharge pipe insertion hole 4B of the right panel 4 constituting the package 1 to the outside. It protrudes. A pneumatic device (not shown) such as an air tank or a nailing machine can be connected to the protruding end of the discharge pipe 24.

  Here, since the discharge pipe 24 passes through the exhaust duct 33, the compressed air whose temperature has risen due to the compression heat can be cooled by the cooling air flowing through the exhaust duct 33. Thereby, efficient cold compressed air can be supplied to pneumatic equipment or the like.

  A cooling fan 25 is located on one side of the motor case 14 and attached to the drive shaft 17. The cooling fan 25 is configured as a suction-type centrifugal fan that rotates and blows air sucked from the center to the outer peripheral side by centrifugal force. The cooling fan 25 circulates the cooling air sucked from an inlet 30 located on one side of a cooling air guide 26 described later toward an outlet 31 located on the other side, thereby surrounding the compressor body 12 around the compressor body 12. It is what is cooled from.

  Reference numeral 26 denotes a cooling air guide provided so as to cover the compressor body 12. The cooling air guide 26 circulates the cooling air from the cooling fan 25 from one side in the axial direction to the other side (left side to right side) around the compressor body 12. Specifically, the cooling air guide 26 cools the upper part and the lower part of the compressor body 12. On the other hand, the cooling air guide 26 is exposed so that the compressor main body 12 can be cooled from the side portion by the cooling air flowing from the other side toward the one side in the package 1. The cooling air guide 26 includes a fan side duct 27, a compression unit side upper duct 28, a compression unit side lower duct 29, a cooling air inlet 30 and a cooling air outlet 31 which will be described later.

  A fan side duct 27 is provided so as to cover the cooling fan 25 and the motor case 14 of the casing 13. As shown in FIGS. 5 to 8, the fan-side duct 27 includes a covered cylindrical fan case 27A surrounding the cooling fan 25 and the other side so as to cover the upper part of the motor case 14 from the upper part of the fan case 27A. The upper duct portion 27B extends to the oil tank 14B of the motor case 14 from the lower portion of the fan case 27A. A cooling air inlet 30 (to be described later) is provided at the center of the fan case 27 </ b> A corresponding to the cooling fan 25.

  Reference numeral 28 denotes a compression part side upper duct provided at the upper part of the compression part case 15 and the fixed scroll 19. As shown in FIGS. 5, 9, 10, etc., the compression portion side upper duct 28 is formed to bend from the upper portion of the compression portion case 15 so as to cover the upper portion of the fixed scroll 19. The compression part side upper duct 28 is connected to the upper duct part 27 </ b> B of the fan side duct 27.

  A compression unit side lower duct 29 is provided at the lower part of the compression unit case 15 and the fixed scroll 19 side. As shown in FIGS. 5, 11, 12, etc., the compression portion side lower duct 29 is formed to bend from the lower portion of the compression portion case 15 so as to cover the lower portion of the fixed scroll 19. The compression portion side lower duct 29 communicates with the lower duct portion 27 </ b> C of the fan side duct 27 via the passage portion 14 </ b> D of the motor case 14.

  Reference numeral 30 denotes a cooling air inlet provided in the center of the fan case 27 </ b> A constituting the fan-side duct 27. The inflow port 30 is located on one side (left side) of the compressor body 12 in the axial direction. The cooling air inlet 30 allows the air in the package 1 to flow toward the cooling fan 25 in the cooling air guide 26.

  Reference numeral 31 denotes a cooling air outlet provided between the compression part side upper duct 28 and the compression part side lower duct 29. The outlet 31 is located on the other side (right side) in the axial direction of the compressor body 12 and is formed in a rectangular tube shape surrounding the discharge pipe 24. The cooling air outlet 31 allows the cooling air that has cooled the compressor body 12 to flow out to the exhaust duct 33 described later.

  Thereby, the cooling air guide 26 can form the upper cooling air passage 26 </ b> A in the upper part of the compressor body 12 by the upper duct portion 27 </ b> B of the fan side duct 27 and the compression portion side upper duct 28. The upper cooling air passage 26 </ b> A allows the cooling air that cools the upper portion of the compressor body 12 to flow from one side to the other side while being isolated from the outside.

  Further, the cooling air guide 26 forms a lower cooling air passage 26 </ b> B in the lower part of the compressor body 12 by the lower duct portion 27 </ b> C of the fan side duct 27, the compression portion lower duct 29, and the passage portion 14 </ b> D of the motor case 14. can do. The lower cooling air passage 26 </ b> B distributes the cooling air from one side to the other side in a state of being isolated from the outside, so that the lubricating oil in the oil tank 14 </ b> B located on the lower side of the compressor body 12 can be obtained. It actively cools down.

  Reference numeral 32 denotes a shielding plate provided in the package 1. The shielding plate 32 shields the upper portion of the compressor body 12 from the outside of the cooling air guide 26 between the suction filter 22 constituting the suction port and the cooling air inlet 30 of the cooling air guide 26. Specifically, the shielding plate 32 is formed as a plate body having a C-shaped opening whose lower side is opened, and an upper portion thereof is attached to the ceiling panel 7 of the package 1. Thereby, the shielding plate 32 can circulate cooling air around the oil tank 14B located on the lower side of the compressor body 12, that is, the part that needs to be cooled, and the lubricating oil accumulated in the oil tank 14B is effective. Can be cooled.

  An exhaust duct 33 is provided in the package 1 and is provided on the base 2. The exhaust duct 33 circulates the cooling air that cools the compressor body 12 and flows out from the outlet 31 of the cooling air guide 26 toward the external outlet 11 of the right panel 4. Further, as shown in FIG. 4, the exhaust duct 33 is formed as a rectangular tube passage by upper and lower frame bodies 33A and 33B. The exhaust duct 33 has one side connected to the cooling air outlet 31 and the other side connected to the external outlet 11 of the right panel 4.

  As a result, the exhaust duct 33 can discharge the entire amount of the cooling air whose temperature has increased from the outlet 31 to the outside through the external outlet 11. Therefore, it is possible to prevent the cooling air whose temperature has risen from being sucked into the cooling air guide 26 again, and the cooling efficiency can be improved.

  The package type compressor according to the first embodiment has the above-described configuration, and the operation thereof will be described next.

  First, when the drive shaft 17 is rotationally driven by the electric motor 16, the orbiting scroll 20 performs the orbiting motion with respect to the fixed scroll 19, so that the compression chambers 21 defined between the wrap portions 19B and 20B are formed. It shrinks continuously from the outside in the radial direction. Thereby, air is sucked into the compression chamber 21 on the outer peripheral side from the suction filter 22, and this air is compressed in the compression chambers 21 in turn to become compressed air. And this compressed air is discharged outside from the compression chamber 21 of the center side via the discharge port 23 and the discharge pipe 24, and is used for an air tank, pneumatic equipment, etc.

  Further, when the compressor main body 12 is operated, a temperature rise is generated in each part, so that these parts are cooled with cooling air. When the cooling fan 25 is rotationally driven by the electric motor 16, as shown in FIG. 3, external air is sucked into the intake cover 9 from each external air intake 10 and is taken into the package 1 from the air intake 8. Is included. At this time, since each suction filter 22 is disposed in the vicinity of the air intake port 8, the compression unit 18 can suck in the cold air that has just flowed in, and can perform an efficient compression operation. it can.

  On the other hand, a large amount of air that has not been sucked into each suction filter 22 becomes cooling air and flows from the air intake 8 toward the cooling air inlet 30 of the cooling air guide 26. At this time, the cooling air circulates around the compressor body 12, whereby the compressor body 12 can be cooled from the surroundings. Further, the cooling air sucked into the cooling air guide 26 from the cooling air inlet 30 is divided and distributed into an upper cooling air passage 26A and a lower cooling air passage 26B in the cooling air guide 26, and the compressor body 12 Flow around the other side to cool. As described above, the compressor main body 12 serving as a heat generation source is effective for both the cooling air flowing from the air intake 8 toward the inlet 30 and the cooling air flowing toward the other side in the cooling air guide 26. Can be cooled.

  Further, when the cooling air flows from the air intake 8 toward the cooling air inlet 30, the shielding plate 32 distributes the cooling air around the oil tank 14B located under the motor case 14 that requires cooling. Therefore, the lubricating oil collected in the oil tank 14B can be effectively cooled.

  Furthermore, the entire amount of the cooling air flowing out from the cooling air outlet 31 can be discharged to the outside from the external discharge port 11 by the exhaust duct 33. At this time, the cooling air flowing through the exhaust duct 33 can cool the compressed air flowing through the discharge pipe 24.

  Thus, according to the first embodiment, the package 1 is provided with the air intake 8 for sucking air into the package 1 from the outside, located on the side of the cooling air guide 26. Thereby, the air sucked from the air intake 8 can be introduced from the cooling air inlet 30 of the cooling air guide 26 via the periphery of the compressor body 12. Moreover, the compressor body 12 can be cooled by circulating cooling air from the inlet 30 toward the outlet 31 in the cooling air guide 26.

  As a result, the compressor main body 12 can be efficiently cooled by two flows of the cooling air flowing in the package 1 and the cooling air flowing in the cooling air guide 26, and the cooling efficiency can be improved with a simple structure. Can improve service life and reliability.

  Further, since the compressor main body 12 has the electric motor 16, the compression unit 18, and the cooling fan 25 arranged in series in the axial direction, the cooling air passage 26A, from one end side to the other end side in the axial direction. These devices can be efficiently cooled by the cooling air circulating in 26B.

  In addition, after the air intake 8 is covered with the inlet cover 9, the intake cover 9 is provided with an external air intake 10 that opens to one side. Thereby, since the inlet cover 9 can cover the air inlet 8, the noise which passed through this air inlet 8 can be interrupted | blocked, and the noise at the time of operation | movement can be reduced. Further, the cooling air can be caused to flow into the intake cover 9 from the external air intake 10 and can be reliably sucked into the package 1 through the air intake 8. Further, since the external air inlet 10 is opened in parallel along the package 1, it can be always opened even when the package type compressor is installed near the wall, and the degree of freedom of the installation method can be increased. it can.

  Further, since the suction filter 22 is disposed in the vicinity of the air intake 8 of the package 1, fresh air that has just flowed in from the air intake 8 of the package 1 can be sucked. Thereby, the compressor main body 12 can improve compression efficiency by sucking cold air.

  On the other hand, a shielding plate 32 is provided in the package 1 between the suction filter 22 constituting the suction port and the cooling air inlet 30 of the cooling air guide 26 to shield the upper portion. Therefore, the shielding plate 32 can circulate cooling air around the oil tank 14B that requires cooling, and can effectively cool the lubricating oil accumulated in the oil tank 14B. Thereby, the temperature rise of lubricating oil can be suppressed and the lifetime can be extended, and the maintenance work of the compressor main body 12 can be simplified and the reliability can be improved.

  Further, the package 1 is provided with an external discharge port 11 on the other end side of the cooling air guide 26. Thereby, the cooling air flowing out from the cooling air guide 26 can be circulated straight toward the external discharge port 11, and the cooling air can be discharged smoothly.

  In addition, since the exhaust duct 33 is provided so as to connect the outlet 31 and the external outlet 11 of the right panel 4, the exhaust duct 33 transfers the entire amount of the cooling air rising from the outlet 31 to the outside. It can be discharged from the discharge port 11 to the outside. Therefore, it is possible to prevent the cooling air whose temperature has risen from being sucked into the cooling air guide 26 again, and the cooling efficiency can be improved.

  Furthermore, since the discharge pipe 24 of the compressor body 12 is disposed in the exhaust duct 33, the compressed air flowing through the discharge pipe 24 can be cooled by the cooling air flowing through the exhaust duct 33. .

  Next, FIG. 13 shows a second embodiment according to the present invention. A feature of the present embodiment is that an air tank for storing compressed air discharged from the compressor body is provided at a position adjacent to the package. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  Reference numeral 41 denotes a package according to the second embodiment, and a pedestal 42 of the package 41 is formed with a notch 42 </ b> A for passing a discharge pipe 43 described later. The package 41 is fixedly mounted on an air tank 44 described later.

  Reference numeral 43 denotes a discharge pipe according to the second embodiment, and the discharge pipe 43 is connected to the discharge port 23 at the base end side. Further, the discharge pipe 43 extends downward through the lower frame body 33B of the exhaust duct 33, and its tip is connected to an air tank 44 described later. Here, the discharge pipe 43 is formed to be bent in a substantially U shape, thereby absorbing expansion and contraction due to temperature change.

  Reference numeral 44 denotes an air tank provided at a position adjacent to the package 41, for example, below the package 41. The air tank 44 stores compressed air discharged from the compressor body 12 through the discharge pipe 43 and stores the compressed air. Further, the air tank 44 is provided with leg portions 44A (only two locations are shown) at the lower four locations, and with handles 44B at the upper ends of both end portions in the length direction.

  Thus, also in the second embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the first embodiment described above. In particular, in the second embodiment, since the air tank 44 is provided below the package 41, the compressed air discharged from the compressor body 12 is stored in the air tank 44 via the discharge pipe 43. Can do.

  Next, FIG. 14 and FIG. 15 show a third embodiment according to the present invention. The feature of the present embodiment is that an air tank for storing compressed air is provided at a position adjacent to the package, and a cooling means for cooling the compressed air discharged from the compressor body is provided in the exhaust duct. is there. Note that in the third embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  Reference numeral 51 denotes a package according to the third embodiment, and a pedestal 52 of the package 51 is formed with a notch 52A for allowing a discharge pipe 53 to be described later to pass therethrough. The package 51 is fixedly mounted on an air tank 55 described later.

  Reference numeral 53 denotes a discharge pipe according to the third embodiment. The discharge pipe 53 is connected to the discharge port 23 at the base end side. Further, the discharge pipe 53 is bent in a substantially S shape on the front end side and extends downward through the lower frame body 33B of the exhaust duct 33, and the front end portion thereof is connected to an air tank 55 described later. Further, an aftercooler 54 described later is provided in the middle of the discharge pipe 53.

  Reference numeral 54 denotes an aftercooler as a cooling means provided on the lower frame 33B of the exhaust duct 33 (see FIG. 15). The aftercooler 54 is connected in the middle of the discharge pipe 53. The aftercooler 54 efficiently cools the compressed air passing through the discharge pipe 53 by using cooling air flowing through the exhaust duct 33.

  Reference numeral 55 denotes an air tank provided at a position adjacent to the package 51, for example, below the package 51. The air tank 55 stores compressed air discharged from the compressor body 12 through the discharge pipe 53 and stores the compressed air. Further, the air tank 55 is provided with leg portions 55A (only one portion is shown) at the lower four locations, and the handle 55B is provided at the upper ends of both end portions in the length direction.

  Thus, also in the third embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the above-described embodiments. In particular, in the third embodiment, since the aftercooler 54 is provided in the exhaust duct 33, the compressed air flowing through the discharge pipe 53 can be cooled by the aftercooler 54, and the thermal expansion of the compressed air is suppressed. The air tank 55 can be efficiently supplied.

  In the third embodiment, the cooling air flowing through the exhaust duct 33 is used for cooling. However, other cooling air may be used such as taking in a dedicated cooling air from the outside. . Further, the cooling means is not limited to the aftercooler 54 but may be a cooling device using a refrigerant.

  Next, FIGS. 16 and 17 show a fourth embodiment according to the present invention. A feature of the present embodiment is that an air tank for storing compressed air is provided at a position adjacent to the package, and a front end side of the exhaust duct is opened toward the air tank. Note that in the fourth embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  Reference numeral 61 denotes a package according to the fourth embodiment. The package 61 is formed as a substantially rectangular parallelepiped box having a soundproof structure. The package 61 includes a pedestal 62 on which the compressor body 12 is mounted, a left panel 63 erected on the left side of the pedestal 62, a gate-shaped operation panel 64 erected on the right side of the pedestal 62, A right panel 65 provided by closing the right side of the operation panel 64, a front panel 66 provided on the front surface between the left panel 63 and the operation panel 64, and between the left panel 63 and the operation panel 64. The rear panel 67 and the ceiling panel 68 that are integrally provided from the back surface to the top surface are roughly configured.

  Here, the pedestal 62 is provided with a later-described external discharge port 72 through which a later-described discharge pipe 74 and cooling air are passed on the right side which is the compressed air discharge side of the compressor body 12. An operation switch 64A and the like are attached to the front surface of the operation panel 64.

  Further, the right panel 65 is formed as a rectangular plate extending in the upward and downward directions. The right panel 65 has a bulging portion 65A that bulges outward from the center to the lower side. The bulging portion 65A constitutes a part of an exhaust duct 75 described later. Moreover, the lower end part of 65 A of bulging parts forms the other external discharge port 73 mentioned later by opening on the diagonal right side as shown in FIG.

  Reference numerals 69 and 69 denote air intakes provided in the front panel 66 and the rear panel 67, respectively. These air inlets 69 are openings for taking outside air into the package 61 in substantially the same manner as the air inlet 8 according to the first embodiment, and are axially connected to the inlet 30 of the cooling air guide 26. Is provided on the side opposite to the other side, that is, on the right end side of each of the panels 66 and 67. Accordingly, each air intake 69 can cause the sucked air to flow into the inlet 30 of the cooling air guide 26 via the periphery of the compressor body 12.

  Reference numerals 70 and 70 denote intake covers provided on the front panel 66 and the rear panel 67 so as to cover the air intakes 69 and 69, respectively. These intake covers 70 are formed in a box shape that opens toward the left side in substantially the same manner as the intake cover 9 according to the first embodiment, and the front panel 66 so that the air intake 69 is in the back position. , Attached to the outer surface of the rear panel 67. Thereby, each intake cover 70 can be provided with the external air intake 71 at a position shifted to the left side which is one side with respect to the air intake 69.

  Reference numeral 72 denotes a square hole-shaped external discharge port provided on the right side of the pedestal 62 so as to face the air tank 78. The external discharge port 72 discharges the cooling air discharged from the cooling air guide 26 toward the air tank 78 located on the lower side of the package 61. The external discharge port 72 also functions as an insertion hole through which a discharge pipe 74 described later passes.

  Reference numeral 73 denotes another external outlet provided at the lower end of the bulging portion 65A of the right panel 65. The other external discharge port 73 opens toward the diagonal right side, and discharges cooling air to the side opposite to the external air intake 71. Further, the other external discharge port 73 can smoothly exhaust the cooling air and increase the cooling efficiency.

  Here, since each of the external discharge ports 72 and 73 is open toward the air tank 78, the cooling air flowing through the exhaust duct 75 described later can be discharged toward the air tank 78, and the discharge is performed. The air tank 78 can be cooled using the cooling air generated.

  Reference numeral 74 denotes a discharge pipe according to the fourth embodiment. The discharge pipe 74 extracts compressed air from the compressor body 12, and the proximal end side is connected to the discharge port 23 of the compressor body 12. Further, the discharge pipe 74 is formed in a substantially U shape by sequentially bending downward and to the left, and its tip is connected to the air tank 78 through the external discharge port 72. Here, the discharge pipe 74 is formed in a substantially U shape to absorb expansion and contraction due to temperature change.

  Further, since the discharge pipe 74 passes through an exhaust duct 75 described later, the compressed air whose temperature has been raised by the compression heat can be cooled by cooling air flowing through the exhaust duct 75. Thereby, the cooled compressed air can be supplied to the air tank 78.

  Reference numeral 75 denotes an exhaust duct provided in the package 61 according to the fourth embodiment. The exhaust duct 75 cools the compressor body 12 and directs the cooling air flowing out from the outlet 31 of the cooling air guide 26 toward the external outlet 72 of the pedestal 62 and the other external outlet 73 of the right panel 65. It is to be distributed. Further, as shown in FIG. 17, the exhaust duct 75 has one side connected to the outlet 31 and the other side connected to the external outlet 72 and the like. The exhaust duct 75 is roughly constituted by the bulging portion 65A of the right panel 65 described above, an inner frame body 76, and an outer frame body 77 described later.

  Reference numeral 76 denotes an inner frame provided on the pedestal 62. The inner frame 76 is formed in a box shape that enters the inside of the discharge pipe 74 bent in a substantially U shape. Accordingly, the inner frame 76 functions as a wall that closes the inside of the discharge pipe 74 as a part of the exhaust duct 75.

  Reference numeral 77 denotes an outer frame provided on the base 62 between the outlet 31 and the right panel 65. The outer frame body 77 is made of a plate body bent into a gate shape, and further, the inner frame body 76 is sandwiched between intermediate portions in the downward direction. As a result, the outer frame 77 functions as a wall that blocks the outside of the discharge pipe 74 as a part of the exhaust duct 75.

  The exhaust duct 75 configured as described above allows the cooling air flowing out from the outlet 31 to flow along the discharge pipe 74, and to the outside from the external outlet 72 of the pedestal 62 and the other external outlet 73 of the right panel 65. Can be discharged. Thereby, it is possible to prevent the cooling air whose temperature has risen from being sucked into the cooling air guide 26 again, and the cooling efficiency can be improved.

  In addition, the exhaust duct 75 uses the cooling air to cool the air tank 78 in which the compressed air that is heated by the compression heat is stored by discharging the cooling air from the external discharge ports 72 and 73 toward the air tank 78. Can be cooled.

  Reference numeral 78 denotes an air tank provided at a position adjacent to the package 61, for example, below the package 61. The air tank 78 stores compressed air discharged from the compressor main body 12 via a discharge pipe 74, and is formed as a cylindrical sealed container with both ends closed. Also, four wheels 78A (only two are shown) are provided at the lower position of the air tank 78. In addition, a handle 78B is provided at an upper position of the air tank 78 to be gripped when moving at both ends in the length direction.

  Thus, also in the fourth embodiment configured as described above, it is possible to obtain substantially the same operational effects as the above-described embodiments. In particular, in the fourth embodiment, the exhaust duct 75 is configured to discharge the cooling air that has cooled the compressor body 12 toward the external air tank 78. Therefore, the exhaust duct 75 can cool the air tank 78 using the cooling air discharged to the outside, and can suppress the temperature rise due to the compression heat.

  Next, FIG. 18 shows a fifth embodiment according to the present invention. The feature of this embodiment is that a substantially U-shaped discharge pipe is disposed so as to protrude toward the rear side of the package. Note that in the fifth embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  81 is a package according to the fifth embodiment, and the package 81 is formed as a substantially rectangular parallelepiped box having a soundproof structure. The package 81 includes a pedestal 82 on which the compressor body 12 is mounted, a left panel 83 erected on the left side of the pedestal 82, a gate-shaped operation panel 84 erected on the right side of the pedestal 82, A right panel 85 provided by closing the right side of the operation panel 84, a front panel 86 provided in front of the left panel 83 and the operation panel 84, and between the left panel 83 and the operation panel 84. The rear panel 87 and the ceiling panel 88 that are integrally provided from the back surface to the top surface are roughly configured.

  Here, the pedestal 82 is provided with a later-described external discharge port 92 through which a later-described discharge pipe 93 and cooling air pass, on the right side, which is the compressed air discharge side, of the compressor body 12. An operation switch 84A and the like are attached to the front surface of the operation panel 84.

  Reference numerals 89 and 89 denote air intakes provided in the front panel 86 and the rear panel 87, respectively. These air inlets 89 are openings for taking outside air into the package 81 in the same manner as the air inlet 8 according to the first embodiment, and the other end side on the side of the cooling air guide 26. That is, it is provided on the right end side of each panel 86, 87.

  Reference numerals 90 and 90 denote intake covers provided on the front panel 86 and the rear panel 87 so as to cover the air intakes 89 and 89, respectively. These intake covers 90 are formed in a box shape that opens toward the left side in substantially the same manner as the intake cover 9 according to the first embodiment, and the front panel 86 so that the air intake port 89 is at the back position. , Attached to the outer surface of the rear panel 87. Thereby, each intake cover 90 can be provided with an external air intake 91 at a position shifted to the left side that is one side with respect to the air intake 89.

  Reference numeral 92 denotes a square hole-shaped external discharge port provided on the right side of the pedestal 82. The external discharge port 92 discharges the cooling air discharged from the cooling air guide 26 toward an air tank 95 (described later) located below the package 81. Further, the external discharge port 92 also functions as an insertion hole through which a discharge pipe 93 described later passes. Here, since the external discharge port 92 is open toward the air tank 95, cooling air flowing through an exhaust duct 94 described later can be discharged toward the air tank 95, and the discharged cooling is performed. The air tank 95 can be cooled using wind.

  Reference numeral 93 denotes a discharge pipe according to the fifth embodiment. The discharge pipe 93 extracts compressed air from the compressor main body 12, and the base end side is connected to the discharge port 23 of the compressor main body 12. Further, the discharge pipe 93 is bent in a downward direction while extending to the rear side, and is formed in a substantially U shape by bending forward in the vicinity of the pedestal 82. And the front-end | tip part of the discharge pipe 93 is connected to the below-mentioned air tank 95 through the external discharge port 92. FIG. Further, since the discharge pipe 93 passes through the exhaust duct 94 described later in substantially the same manner as the discharge pipe 24 according to the first embodiment, the compressed air whose temperature has risen due to the compression heat flows through the exhaust duct 94. It can be cooled by cooling air.

  Furthermore, since the discharge pipe 93 is formed in a substantially U shape by being bent rearward, the installation space in the left and right directions can be reduced as compared with the discharge pipe 74 according to the fourth embodiment. it can.

  Reference numeral 94 denotes an exhaust duct provided in the package 81 according to the fifth embodiment. The exhaust duct 94 circulates the cooling air that cools the compressor body 12 and flows out from the outlet 31 of the cooling air guide 26 toward the external outlet 92 of the pedestal 82. Further, the exhaust duct 94 is formed in a box shape in which one side is connected to the outflow port 31 and the other side can be connected to the external discharge port 92.

  And the exhaust duct 94 can distribute | circulate the cooling air which flows out out of the outflow port 31 along the discharge pipe 93, and can discharge | emit it outside from the external discharge port 92 of the base 82. FIG. Thereby, it is possible to prevent the cooling air whose temperature has risen from being sucked into the cooling air guide 26 again, and the cooling efficiency can be improved.

  Moreover, the exhaust duct 94 cools the air tank 95 that stores the compressed air that is heated by the compression heat by using the cooling air by discharging the cooling air from the external discharge port 92 toward the air tank 95. Can do.

  Reference numeral 95 denotes an air tank provided at a position adjacent to the package 81, for example, below the package 81. The air tank 95 stores compressed air discharged from the compressor body 12 via a discharge pipe 93, and is formed as a cylindrical sealed container with both ends closed. Further, four wheels 95A (only two are shown) are provided at a lower position of the air tank 95. Further, at the upper position of the air tank 95, there is provided a handle 95B which is gripped when moving at both ends in the length direction.

  Thus, also in the fifth embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the above-described embodiments. In particular, in the fifth embodiment, since the discharge pipe 93 is bent rearward and formed in a substantially U shape, the left and right spaces for installing the discharge pipe 93 can be reduced. . Thereby, a margin can be provided when installing the device. Or a package type compressor (package 81) can be reduced in size.

  Next, FIG. 19 shows a sixth embodiment according to the present invention. The feature of this embodiment is that the air intake is provided on the base of the package. Note that in the sixth embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and description thereof is omitted.

  101 is a package according to the sixth embodiment, and the package 101 is formed as a substantially rectangular parallelepiped box having a soundproof structure. The package 101 includes a pedestal 102 on which the compressor main body 12 is mounted, a left panel 103 erected on the left side of the pedestal 102, a gate-shaped operation panel 104 erected on the right side of the pedestal 102, A right panel 105 provided by closing the right side of the operation panel 104, a front panel 106 provided in front of the left panel 103 and the operation panel 104, and between the left panel 103 and the operation panel 104. The rear panel 107 and the ceiling panel 108 which are integrally provided from the back surface to the top surface are roughly configured.

  Further, the right panel 105 has a bulging portion 105A that bulges outward from the center to the lower side. The bulging portion 105A constitutes a part of an exhaust duct 112 described later.

  Reference numerals 109 and 109 denote two square hole air intakes provided in the base 102. These air intake ports 109 are provided in the pedestal 102 which is the lower side of the cooling air guide 26. Each air inlet 109 is an opening for taking outside air into the package 101 and is the other end side opposite to the inlet 30 of the cooling air guide 26 in the axial direction, that is, the right end of the pedestal 102. It is located on the side. Thus, each air intake 109 can cause the sucked air to flow into the cooling air inlet 30 of the cooling air guide 26 via the periphery of the compressor body 12.

  Reference numeral 110 denotes a square hole-shaped external discharge port provided on the right side of the pedestal 102. The external discharge port 110 discharges the cooling air discharged from the cooling air guide 26 toward an air tank 115 described later located below the package 101. The external discharge port 110 also functions as an insertion hole through which a discharge pipe 111 described later passes.

  Here, since the external discharge port 110 is opened toward the air tank 115, the cooling air flowing through the exhaust duct 112 described later can be discharged toward the air tank 115, and the discharged cooling is performed. The air tank 115 can be cooled using wind.

  Reference numeral 111 denotes a discharge pipe according to the sixth embodiment. The discharge pipe 111 takes out compressed air from the compressor body 12, and the base end side is connected to the discharge port 23 of the compressor body 12. Further, the discharge pipe 111 is formed in a substantially U shape, and its tip is connected to an air tank 115 to be described later through an external discharge port 110. Further, the discharge pipe 111 can be arranged in an exhaust duct 112 (to be described later) to cool the compressed air whose temperature has risen due to compression heat with cooling air flowing through the exhaust duct 112.

  Reference numeral 112 denotes an exhaust duct provided in the package 101 according to the sixth embodiment. The exhaust duct 112 circulates the cooling air that cools the compressor body 12 and flows out from the outlet 31 of the cooling air guide 26 toward the external outlet 110 of the pedestal 102. The exhaust duct 112 has one side connected to the outlet 31 and the other side connected to the external outlet 110 and the like.

  The exhaust duct 112 is roughly constituted by the bulging portion 105A of the right panel 105, the inner frame 113 forming the inner wall, and the outer frame 114 forming the outer wall. As a result, the exhaust duct 112 allows the cooling air flowing out from the outlet 31 to flow along the discharge pipe 111 and be discharged to the outside from the external outlet 110 of the pedestal 102.

  Moreover, the exhaust duct 112 cools the air tank 115 in which the compressed air that is heated by the compression heat is stored by using the cooling air by discharging the cooling air from the external discharge port 110 toward the air tank 115. Can do.

  Reference numeral 115 denotes an air tank provided at a position adjacent to the package 101, for example, below the package 101. The air tank 115 stores compressed air discharged from the compressor body 12 via a discharge pipe 111, and is formed as a cylindrical sealed container with both ends closed. Further, four wheels 115A (only one is shown) are provided at a lower position of the air tank 115. Further, a grip 115B is provided at the upper position of the air tank 115 to be gripped when moving at both ends in the length direction.

  Thus, also in the sixth embodiment configured as described above, it is possible to obtain substantially the same operational effects as those of the above-described embodiments. In particular, in the sixth embodiment, the air intake port 109 is provided in the base 102 of the package 101. Therefore, the package 101 can be reduced in size, and even when it is disposed near the wall, air can be reliably sucked as cooling air.

  Next, FIG. 20 shows a seventh embodiment according to the present invention. The feature of this embodiment is that two compressor bodies are provided in the package, and two sets of air intakes are provided in the package in accordance with the two compressor bodies. Note that in the seventh embodiment, the same components as those in the first embodiment described above are denoted by the same reference numerals, and descriptions thereof are omitted.

  Reference numeral 121 denotes a package according to the seventh embodiment, and the package 121 is formed as a substantially rectangular parallelepiped box having a soundproof structure. The package 121 includes a pedestal 122 on which the compressor body 12 is mounted, a left panel 123 erected on the left side of the pedestal 122, a right panel 124 erected on the right side of the pedestal 122, and a left panel 123. The front panel 125 provided on the front surface between the right panel 124 and the rear panel 126 provided on the back surface between the left panel 123 and the right panel 124 and the ceiling panel 127 are roughly configured. An operation switch 125A and the like are attached to the upper portion of the front panel 125.

  Here, an inner panel 128 is provided on the right side in the package 121 with a space from the right panel 124, and an exhaust passage 129 having an open upper side is formed between the inner panel 128 and the right panel 124.

  Further, a compressor mounting base 130 is provided in the package 121, whereby one compressor main body 12 is provided on the pedestal 122, and one compressor main body 12 is provided on the compressor mounting base 130. be able to.

  Reference numeral 131 denotes an air intake port (only the rear side is shown) for the lower compressor body 12 provided below the front panel 125 and the rear panel 126. These air intakes 131 are arranged in a side position opposite to the inflow port 30 of the cooling air guide 26 in the axial direction, that is, in the same manner as the air intake 8 according to the first embodiment, that is, each panel 125, 126 is provided on the right end side.

  Reference numeral 132 denotes an air intake port for the upper compressor body 12 provided on the upper side of the front panel 125 and the rear panel 126 (only the rear side is shown). These air intakes 132 are located on the side positions opposite to the inlet 30 of the cooling air guide 26 in the axial direction, that is, on the right end sides of the panels 125 and 126, similarly to the air intake 131 described above. Is provided.

  133 is a lower intake cover provided on the front panel 125 and the rear panel 126 so as to cover the air intake 131, and 134 is provided on the front panel 125 and the rear panel 126 so as to cover the air intake 132. Each upper intake cover is shown. These intake covers 133 and 134 are formed in a box shape that opens toward the left side in substantially the same manner as the intake cover 9 according to the first embodiment. As a result, each of the intake covers 133 and 134 can cause air to flow into the air intakes 131 and 132.

  Reference numeral 135 denotes an external outlet provided at the right position of the ceiling panel 108, and the external outlet 135 is formed as an opening of the exhaust passage 129. Here, the external outlet 135 prevents the warmed cooling air from being taken in again by discharging the cooling air upward.

  Reference numeral 136 denotes a lower discharge pipe according to the seventh embodiment. The discharge pipe 136 guides compressed air from the lower compressor body 12, and an exhaust passage 129 passes through the lower exhaust duct 139 described later. It extends toward. Reference numeral 137 denotes an upper discharge pipe which guides compressed air from the upper compressor body 12 and extends in an upper exhaust duct 140 described later toward an exhaust passage 129. Further, reference numeral 138 denotes a communication pipe provided in the exhaust passage 129. The communication pipe 138 communicates the lower discharge pipe 136 and the upper discharge pipe 137, and the tip projects from the right panel 124 to the outside. ing.

  Reference numeral 139 denotes a lower exhaust duct provided in the package 121 according to the seventh embodiment. The exhaust duct 139 is formed in a rectangular tube shape, one side of which is connected to the outflow port 31, and the other side is connected to the external exhaust port 135 via the exhaust passage 129. Reference numeral 140 denotes an upper exhaust duct. The exhaust duct 140 is formed in a rectangular tube shape like the lower exhaust duct 139, one side of which is connected to the outlet 31 and the other side is connected to the external outlet 135 via the exhaust passage 129. .

  Thus, also in the seventh embodiment configured as described above, it is possible to obtain substantially the same operational effects as the above-described embodiments. In particular, in the seventh embodiment, since the two compressor bodies 12 and 12 are provided in the package 121, a large amount of compressed air or high-pressure compressed air can be provided. In addition, since the package 121 is provided with two sets of air intakes 131 and 132 and intake cover 133 and 134 according to the number of built-in compressor main bodies 12, the air flows from the air intakes 131 and 132. The two compressor bodies 12 can be efficiently cooled by the cooling air that is generated.

  In the first embodiment, the air intake 8 is provided in the front panel 5 and the rear panel 6, and in the sixth embodiment, the air intake 109 is provided in the base 102 as an example. Explained. However, the present invention is not limited to this. For example, an air intake may be provided in the ceiling panel. This configuration can also be applied to other embodiments.

  A fan may be provided at the air intake. However, in this case, it is desirable to use a small electric fan that generates much less noise than the cooling fan 25.

  In addition, according to each embodiment, the air sucked from the cooling air inlet 30 of the cooling air guide 26 is blown to the outer peripheral side by centrifugal force on one end side in the axial direction of the compressor body 12 to each cooling air passage 26A, The description has been given by taking as an example the case where a suction-type centrifugal fan that circulates on the 26B side is provided. However, the present invention is not limited to this. For example, air is sucked from the cooling air inlet 30 by discharging air from the cooling air outlet 31 of the cooling air guide 26 to the other end side in the axial direction of the compressor body 12. It is good also as a structure which provides the discharge type fan which distribute | circulates air by each cooling-air channel | path 26A, 26B. In addition to the centrifugal fan, an axial fan or the like may be applied as the cooling fan.

  Furthermore, in each embodiment, the air compressor which mounted the scroll type compressor main body 12 which is a typical example of a rotary compressor as a package type compressor was mentioned as an example, and was demonstrated. However, the present invention is not limited to this, and other rotary compressors such as a vane compressor and a trochoid compressor may be used, and a reciprocating compressor body in which a piston reciprocates in a cylinder may be used. You may apply to the other package type compressor mounted.

  In the second to sixth embodiments, the example in which the package compressor is provided in the upper part of the tank is shown. However, the present invention is not limited to this, and the position of the tank may be provided in the side part. It is good also as a structure which provides a tank on top.

1 is an external perspective view showing a package type compressor according to a first embodiment of the present invention. It is sectional drawing which expands and shows the internal structure of a package type compressor. It is sectional drawing which looked at the internal structure of the package type compressor from the arrow III-III direction in FIG. It is a disassembled perspective view which decomposes | disassembles and shows the package and exhaust duct of a package type compressor. It is sectional drawing which expands and shows a compressor main body and a cooling wind guide from the arrow VV direction in FIG. It is a disassembled perspective view which decomposes | disassembles and shows a compressor main body and a cooling wind guide. It is a front view which shows the fan side duct of a cooling wind guide alone. It is a left view which shows the fan side duct of a cooling wind guide alone. It is a front view which shows the compression part side upper duct of a cooling air guide alone. It is a right view which shows the compression part side upper duct of a cooling wind guide alone. It is a front view which shows the compression part side lower duct of a cooling wind guide alone. It is a right view which shows the compression part side lower duct of a cooling wind guide alone. It is a disassembled perspective view which shows the package type compressor by the 2nd Embodiment of this invention. It is a disassembled perspective view which shows the package type compressor by the 3rd Embodiment of this invention. It is sectional drawing which looked at the internal structure of the package type compressor from the same position as FIG. It is a disassembled perspective view which shows the package type compressor by the 4th Embodiment of this invention. It is sectional drawing which expands and shows the internal structure of a package type compressor. It is a disassembled perspective view which shows the package type compressor by the 5th Embodiment of this invention. It is a disassembled perspective view which shows the package type compressor by the 6th Embodiment of this invention. It is sectional drawing which looked at the internal structure of the package type compressor by the 7th Embodiment of this invention from the same position as FIG.

Explanation of symbols

1, 41, 51, 61, 81, 101, 121 Package 8, 69, 89, 109, 131, 132 Air intake 9, 70, 90, 133, 134 Air intake cover 10, 71, 91 External air intake 11 , 72, 73, 92, 110, 135 External discharge port 12 Compressor body 22 Suction filter (suction port)
23 Discharge port 24, 43, 53, 74, 93, 111, 136, 137 Discharge pipe 26 Cooling air guide 26A Upper cooling air passage 26B Lower cooling air passage 30 Cooling air inlet 31 Cooling air outlet 32 Shielding plates 33, 75, 94, 112, 139, 140 Exhaust ducts 44, 55, 78, 95, 115 Air tank 54 After cooler (cooling means)

Claims (15)

A compressor body including a package having a soundproof structure, an electric motor disposed in the package, a compression unit that compresses the air sucked and driven by the electric motor, and a cooling fan that generates cooling air; and the compression In a package type compressor provided with a cooling air guide that is provided along the outside of the machine body and that circulates cooling air from the cooling fan from one side in the axial direction to the other side of the compressor body,
The package is provided on the side of the cooling air guide with an air intake for taking air into the package from the outside, and the air sucked from the air intake is placed around the compressor body. A package type compressor characterized in that it is configured to flow in from a cooling air inlet on one end side of the cooling air guide.   The compressor body has the electric motor, a compression unit, and a cooling fan arranged in series in the axial direction, and the cooling air guide defines a cooling air passage between the electric motor and the outer periphery of the compression unit, The package type compressor according to claim 1, wherein the cooling air generated by the cooling fan flows through the cooling air passage from one end side to the other end side in the axial direction.   3. The package according to claim 1 or 2, wherein the package is provided with a cover that covers the air intake, and the cover is provided with an external air intake that opens to the outside at a position shifted to one side of the air intake. Package type compressor as described.   4. The package type compressor according to claim 1, 2, or 3, wherein a suction port provided in a compression portion of the compressor body is arranged at a position corresponding to an air intake port of the package.   The package type compressor according to claim 4, wherein a shielding plate that partially shields between the suction port and a cooling air inlet of the cooling air guide is provided in the package.   The package type compressor according to claim 5, wherein the shielding plate is configured to shield an upper portion of the compressor body from the outside of the cooling air guide and to communicate the lower portion.   The package is provided with an external discharge port that is positioned on the other end side in the axial direction and discharges cooling air that has cooled the compressor body to the outside. Package type compressor described in 1.   The package type compressor according to claim 7, wherein the package is provided with an exhaust duct that communicates a cooling air outlet provided in the cooling air guide with an external outlet of the package.   The package type compressor according to claim 8, wherein a discharge pipe for guiding compressed air discharged from a compression portion of the compressor main body is disposed in the exhaust duct.   The package type compressor according to claim 8 or 9, wherein cooling means for cooling the compressed air discharged from the compressor main body is provided in the exhaust duct.   The package according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, wherein an air tank for storing compressed air discharged from the compressor body is provided adjacent to the package. Mold compressor.   The said package is set as the structure which mounts in the said air tank through the base which supports the said compressor main body, It becomes a structure provided in the said base so that the air intake port of the said package may face the said air tank. Package type compressor.   13. The package according to claim 11 or 12, wherein an exhaust duct is provided in the package so as to communicate with a cooling air outlet provided in the cooling air guide, and a front end side of the exhaust duct is opened toward the air tank. Package type compressor.   The package type compressor according to claim 13, wherein a discharge pipe for supplying compressed air discharged from a compression portion of the compressor body to the air tank is disposed in the exhaust duct.   A plurality of the compressor main bodies are provided in the package, and the package is provided with the air intake ports according to the number of the compressor main bodies. The package type compressor according to 8, 9, 10, 11, 12, 13 or 14.

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