CN102536816A - Spherical blade compressor - Google Patents

Abstract

The invention discloses a spherical vane compressor, which comprises a casing, a rotor, two blades, two sealing strips, two gas distribution cones and two pads; the rotor is located at the center, the casing is located at the outside, and two The gas distribution cones are respectively located in the hollow conical surfaces at both ends of the rotor, and the two blades are respectively located on both sides of the rotor, and are placed in the hollow ring at the opposite corner of the housing, forming an angle with the rotor, and the tangent of the angle is the housing The ratio of the height to the diameter of the bottom circle of the shell; one plane of the vane fits the side of the conical table of the gas distribution cone, the sealing strip is located between the rotor and the vane, one side of the plane is jointed with a plane of the rotor, and the side of the cylinder is Then it fits with the cylindrical surface E1 of the blade, and the cushion block is located in the hollow ring at the diagonal of the housing, just filling the vacancy formed by the blade, the rotor and the sealing strip; all the sealing positions of the present invention are surface seals, which have high efficiency and Large specific power, compact structure, relatively easy processing, low cost and long life.

Description

A spherical vane compressor

technical field

The invention relates to a compressor, in particular to a spherical vane compressor.

Background technique

The structure of the existing vane compressors is that the rotor is eccentrically placed in the cylinder body, and the vanes are placed in the rotor radially or at a certain angle with the rotor radius. The body forms a sealed cavity, and the volume change generates pressure when it rotates. The number of leaves is two or more. This type of compressor is sealed by a contact line between the blades and the cylinder body, so the sealing performance is poor, the output pressure is low, and there is a lot of friction between the blades, the rotor and the cylinder body during rotation, resulting in overall wear of the compressor. Fast, short life, low efficiency. In addition, in order to ensure that the blades can safely enter and exit the rotor during rotation, the rotor must have a considerable diameter, so the displacement is bound to be small.

Contents of the invention

The object of the present invention is to provide a spherical vane compressor to address the deficiencies of the prior art. The invention has a large displacement, and all sealing positions are face seals, and are not easy to be worn.

In order to achieve the above object, the technical scheme adopted by the present invention is as follows: a spherical vane compressor, including: a housing, a rotor, two blades, two sealing strips, two gas distribution cones and two pads; The center, the shell is located outside, the two gas distribution cones are respectively located in the hollow conical surface at both ends of the rotor, and the two vanes are respectively located on both sides of the rotor, and are placed in the hollow ring at the opposite corner of the housing, forming a shape with the rotor. An angle, the tangent of the angle is the ratio of the height of the shell to the diameter of the bottom circle of the shell; one plane of the vane fits the side of the round table of the gas distribution cone, the sealing strip is located between the rotor and the vane, and one side of the plane is in contact with the rotor One of the planes fits together, and one side of the cylindrical surface fits with the cylindrical surface E1 of the blade. The spacer is located in the hollow ring at the diagonal of the housing, just filling the vacancy formed by the blade, rotor and sealing strip.

The blade is surrounded by two planes A1, B1 and two cylinders C1, E1; wherein, the cylinder C1 is centered at the center of the sphere O1, and the radius is the same as that of the cylinder E4 of the hollow ring of the shell Cylinder E1 is a cylinder whose center is center O1 and radius O1K1, and point K1 is the intersection point of the vertical symmetry axis passing through center O1 and cylinder E1; two planes A1 and B1 are parallel to connect the cylinder C1 and E1; the distance between two parallel planes A1 and B1 is the thickness of the blade, which is equal to the width of the hollow ring of the casing; the length of O1K1 is the sum of half the thickness of the rotor and the height of the sealing strip;

    The upper side of the sealing strip is a cylindrical surface whose center is the center O1 and whose radius is equal to the radius of the cylindrical surface E1 of the blade. The lower side is a plane, and the vertical distance between the center O1 and the lower plane is half the thickness of the rotor. The cylindrical surface G1 is a cylindrical surface whose center is O1 and whose radius is equal to that of the rotor cylindrical surface P2. The spherical surface F1 is a spherical surface whose center is O1 and whose radius is equal to the radius of the spherical surface F4 of the shell. The planes H1 and I1 are parallel, and the sealing strip The width (that is, the distance between planes H1 and I1) is equal to the thickness of the blade; both the blade and the sealing strip are axisymmetric;

    There is a flat plate in the middle of the rotor, and two identical quasi-circular tables are located at the middle of the flat plate. The lower bottom of one of the quasi-circular tables is the surface B2, and the upper bottom surface meets the flat plate. The center is the O2 radius and the middle column of the sealing strip. The negative cylindrical surface P2 with the same radius of the surface G1 has the same cone angle of the quasi-conical frustum and the conical angle of the negative circular frustum H2, the lower bottom surfaces A2 and B2 of the two quasi-conical frustums are parallel circular planes, and the two planes I2 and J2 of the flat plate are parallel, Spherical surfaces E2 and F2 are large left and right outer spherical surfaces whose center is O2, and G2 and H2 are two identical side surfaces of the negative circular platform, and the upper and lower bottoms of one negative circular platform are respectively the circular plane B2 and the circular surface with K2L2 as the diameter, and the two parallel The distance between plane I2 and J2 is the thickness of the rotor, and the length of the straight line segment of K2M2 is the width of the rotor. The entire rotor is not only symmetrical about the center O2, but also axisymmetric;

The gas distribution cone is a circular platform, the radii of the top surface A3 and the bottom surface B3 are respectively equal to the radii of the upper and lower bottom surfaces of the rotor yin circular platform, and the height is also equal to the height of the rotor yin circular platform, and the spatial positions of the two gas distribution cones are determined as follows : Ensure that after assembly, the side surfaces of the two gas distribution cones are respectively fitted with the corresponding parallel plane C4 or D4 of the hollow ring of the corresponding shell, the cone surface from point D3 to E3 is the air intake surface, and point D3 is the center of the circle The intersection point of the horizontal axis of the horizontal axis and the bottom surface B3, the position of point E3 is when the rotor changes from the paper position shown in Figure 5 to the position perpendicular to the paper surface shown in Figure 16, the intersection point of the plane on the left side of the rotor and the bottom circle, point The conical surface from D3 to G3 is the exhaust surface, and the conical surface from D3 to G3 is less than 90 degrees, and the angle depends on the exhaust pressure.

The shell is a waist drum-shaped spherical surface with two spherical caps cut off in parallel at both ends, the thickness is equal to the width K2M2 of the rotor, the top surface A4 and the bottom surface B4 are two parallel circular planes with equal radii, and the spherical surface F4 is based on O4. The center is a spherical surface whose radius is equal to the radius of the large spherical surfaces E2 and F2 on the left and right sides of the rotor. The opposite corner of the spherical surface of the shell is a hollow ring. The two sides C4 and D4 of the hollow ring are parallel plane rings. The hollow ring The cylindrical surface E4 is the cylindrical surface whose central axis passes through O4, and is located on the diagonal of the housing; the entire housing is symmetrical about the center O4 of the ball table;

The spacer is a section of ring, its outer surface A5 is a cylindrical surface with a radius equal to the outer diameter of the cylindrical surface E4 of the hollow ring of the housing, the inner surface B5 is a spherical surface with a radius equal to the radius of the spherical surface F4 of the housing, and the two waists C5 D5 and D5 are cylindrical surfaces whose radius is equal to that of the cylinder surface E1 on the bottom surface of the blade, and the thickness of the spacer is the same as that of the blade; the shape of the spacer is axisymmetric.

When the spherical vane compressor inputs torque, the low-pressure gas is sucked from the inlet surface of the gas distribution cone (5) from point D3 to E3, and the high-pressure gas is sucked from the gas distribution cone (5) point D3 to the exhaust surface of G3 discharge to the load.

The beneficial effects of the present invention are:

1) All seals are face seals;

2) Large displacement, high pressure and high efficiency;

3) Large specific power;

4) Compact structure, relatively easy processing;

5) Lower cost;

6) It is not easy to wear and has a long service life.

Description of drawings

The present invention will be further described below in conjunction with drawings and embodiments.

Fig. 1 is the schematic diagram of blade shape of the present invention

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a structural schematic diagram of the sealing strip of the present invention;

Fig. 4 is a schematic diagram of Q1 in Fig. 3;

Fig. 5 is a structural schematic view of the rotor of the present invention;

Fig. 6 is the W-W sectional view of Fig. 5;

Fig. 7 is a T-T sectional view of Fig. 5;

Fig. 8 is a schematic structural view of the oil distribution cone of the present invention;

Figure 9 is a schematic diagram of the P direction in Figure 8

Fig. 10 is a schematic diagram of the shell structure of the present invention;

Figure 11 is a sectional view of the housing;

Fig. 12 is the M-M sectional view of Fig. 11;

Figure 13 is a schematic diagram of the overall structure of the present invention;

Fig. 14 is a schematic diagram of the K direction of Fig. 13;

Fig. 15 is the N-N sectional view of Fig. 13;

Fig. 16 is a schematic diagram of the operating principle of the present invention;

Fig. 17 is a U-U sectional view of Fig. 13;

Fig. 18 is a schematic diagram of the principle of the working process of the present invention;

Fig. 19 is a V-V sectional view of Fig. 16;

Fig. 20 is a schematic diagram of the principle of the working process of the present invention;

In the figure: housing 1, rotor 2, blade 3, sealing strip 4, gas distribution cone 5, spacer 6.

Detailed ways

As shown in FIG. 16 , the spherical vane compressor of the present invention includes a casing 1 , a rotor 2 , two vanes 3 , two sealing strips 4 , two gas distribution cones 5 and two pads 6 . The rotor 2 is located in the center, the housing 1 is located outside, the two gas distribution cones 5 are respectively located in the hollow conical surfaces at both ends of the rotor 2, and the two vanes 3 are respectively located on both sides of the rotor 2 and placed on the opposite corners of the housing 1. It forms an angle with the rotor 2 in the hollow ring (that is, the guide groove), and the tangent of the angle is the ratio of the height of the housing 1 to the diameter of the bottom circle of the housing 1. One plane of the vane 3 fits the side of the conical table of the gas distribution cone 5, the sealing strip 4 is located between the rotor 2 and the vane 3, one plane side of the blade 3 is jointed with a plane of the rotor 2, and the cylindrical side is jointed with the vane 3 The cylindrical surface E1 is attached, and the pad 6 is located in the hollow ring at the diagonal of the housing 1, just filling the vacancy formed by the blade 3, the rotor 2 and the sealing strip 4.

1 and 2 show the shape of the blade 3 of the present invention. The blade 3 is surrounded by two planes A1, B1 and two cylinders C1, E1, wherein the cylinder C1 is centered at the center of the sphere O1, and the radius is the same as that of the cylinder E4 of the hollow ring of the shell 1 Cylinder E1 is a cylinder whose center is center O1 and radius O1K1, and point K1 is the intersection of the vertical axis of symmetry passing through center O1 and cylinder E1. Two planes A1 and B1 are parallel and connect cylinders C1 and E1. The distance between the two parallel planes A1 and B1 is the thickness of the blade 3, and the thickness of the blade 3 is equal to the width of the hollow ring of the casing 1 in FIG. 11 . The length of O1K1 is the sum of half the thickness of the rotor 2 in Fig. 6 and the height of the sealing strip.

3 and 4 show the shape of the sealing strip 4 of the present invention. As shown in Figure 4, the upper side of the sealing strip 4 is a cylindrical surface whose center is the spherical center O1 and the radius is equal to the radius of the blade 3 cylindrical surface E1, and the lower side is a plane, and the vertical distance between the spherical center O1 and the lower plane is Half of the thickness of the rotor 2 in Fig. 6, the cylindrical surface G1 is a cylindrical surface whose center is O1 and the radius is equal to the radius of the cylindrical surface P2 of the rotor 2 in Fig. 5, and the spherical surface F1 is a spherical surface whose center is O1 and the radius is equal to the radius of the spherical surface F4 of the housing 1 in Fig. 11 The spherical surface, the planes H1 and I1 are parallel, and the width (that is, the distance between the planes H1 and I1) is equal to the thickness of the blade 3. Both the blade 3 and the sealing strip 4 are axisymmetric.

5, 6 and 7 show the shape of the rotor 2 of the present invention. There is a flat plate in the middle of the rotor 2, and two identical quasi-circular tables are located at the two waists in the middle of the plate. The lower bottom of one of the quasi-circular tables is B2, and the connection between the upper bottom and the flat plate is the center of the radius O2 and the radius of G1 in the middle of the sealing strip 4. For the same female cylindrical surface P2, the cone angle of the quasi-conical frustum is the same as that of the female circular frustum H2, A2 and B2 are parallel circular planes, I2 and J2 are parallel flat planes, and E2 and F2 are the left and right outer diameters whose center is O2. Spherical surfaces, G2 and H2 are two identical side surfaces of the negative circular platform, and the upper and lower bottoms of one negative circular platform are the circular plane B2 and the circular surface with the diameter of K2L2 respectively. The distance between the two parallel planes I2 and J2 is the thickness of the rotor 2, K2M2 The length of the straight line is the width of the rotor 2, and the entire rotor 2 is not only symmetrical about the center O2, but also axisymmetric.

Figure 8 and Figure 9 show the shape of the gas distribution cone 5 of the present invention. The gas distribution cone 5 is a circular platform, the radii of the top surface A3 and the bottom surface B3 are respectively equal to the radii of the upper and lower bottom surfaces of the rotor 2 negative circular platform, and the height is also equal to the height of the rotor 2 negative circular platform. The spatial positions of the two gas distribution cones 5 are It is determined as follows: after assembly, ensure that the side surfaces of the two gas distribution cones 5 and the corresponding parallel planes C4 or D4 of the hollow ring of the corresponding housing 1 respectively fit together. D3 is the intersection point of the horizontal axis passing through the center of the circle and the bottom surface B3. The position of point E3 is when the rotor 2 turns from the paper position shown in Figure 5 to the position perpendicular to the paper plane shown in Figure 16, the left plane of the rotor 2 and The intersection point of the bottom circle, the conical surface from D3 to G3 is the exhaust surface, and the conical surface from D3 to G3 is less than 90 degrees, and the angle depends on the exhaust pressure.

Figure 10, Figure 11 and Figure 12 show the shape of the casing 1 of the present invention. The shell 1 is a drum-shaped spherical surface with two spherical caps cut off in parallel at both ends, and its thickness is equal to the width K2M2 of the rotor 2. The top surface A4 and the bottom surface B4 are parallel circular planes with equal radii, and the spherical surface F4 takes O4 as the center of the sphere. A spherical surface whose radius is equal to the radius of the left and right outer large spherical surfaces E2 and F2 of the rotor 2. The opposite corner of the spherical surface of the housing 1 is a hollow ring, and the two sides C4 and D4 of the hollow ring are parallel plane rings, and E4 is the center The shaft passes through the cylindrical surface of O4 and is located on the diagonal of the housing. The spatial positions of the two planes C4 and D4 parallel to the hollow ring are determined as follows: ensure that the two planes C4 and D4 are connected with the two gas distribution cones after assembly. The sides are fitted separately. The entire shell 1 is symmetrical about the center O4 of the table.

The shape of the spacer 6 is shown in FIG. 15 . Pad block 6 is a section of ring, its outer surface A5 is a cylindrical surface with a radius equal to the outer diameter of the shell 1 hollow ring E4, the inner surface B5 is a spherical surface with a radius equal to the radius of the shell 1 spherical surface F4, and the two waists C5 and D5 It is a cylindrical surface whose radius is equal to the radius of the cylindrical surface E1 of the bottom surface of the blade 3 , and the thickness of the spacer 6 is the same as that of the blade 3 . The pad 6 is axisymmetric in shape. .

As shown in Fig. 16, after the spherical vane compressor of the present invention is assembled, the centers O1, O2, and O4 of each component coincide.

Operation principle of the present invention is as follows:

As shown in Figure 19, at one end of the compressor, the rotor 2, the blade 3, the sealing strip 4, the gas distribution cone 5 and the casing 1 divide the air chamber into three independent sealing chambers Q1, Q2 and Q3. When the rotor 2 rotates clockwise from the position shown in Figure 13 or 7a, the cavity Q2 starts to suck air, Q3 is the suction cavity, and Q1 is the compression cavity, as shown in Figure 18. The rotor 2 continues to rotate clockwise, the suction chambers Q2 and Q3 continue to expand, and the compression chamber Q1 continues to shrink. When turning to the position shown in Figure 16 or Figure 19, the suction chamber Q3 reaches the maximum. At this time, the suction chambers Q2 and Q3 remain isolated from the compression chamber Q1. When the rotor 2 continues to rotate, the cavity Q3 starts to compress, at this moment, the cavity Q2 is still the suction cavity, and the cavity Q1 is still the compression cavity. When the rotor 2 continues to rotate to the position shown in Figure 20, the compression chamber Q1 starts to exhaust. When the rotor 2 turns to the position shown in Figure 13 or 7a, the chamber Q1 is exhausted, at this moment, the chamber Q2 is still the suction chamber, and the chamber Q3 is still the compression chamber. When the rotor 2 continues to rotate, the new air suction chamber starts to inhale, the chamber Q2 is still inhaling, and the chamber Q3 is still compressing. When the rotor 2 turned to the position in Figure 19 again, the air suction chamber Q2 reached the maximum, and then began to compress. At this time, the new air suction chamber was still sucking air, and the chamber Q3 was still compressing. So again and again. At the other end of the compressor-cum-vacuum pump, the situation is exactly the same.

Compared with the inventor's previous patent application (patent application No. 200810063250.4), the sealing strip has changed from four to two, and the sealing strip matching a blade has changed from two separated left and right to one whole strip, which not only simplifies the structure , and improve the sealing effect and reliability. At the same time, the middle of the rotor changes from a spherical surface to a quasi-circular table, which makes the middle volume of the rotor smaller and the space larger. As a result, the specific displacement is greatly increased.

The above-mentioned embodiments are used to explain the present invention, rather than to limit the present invention. Within the spirit of the present invention and the protection scope of the claims, any modification and change made to the present invention will fall into the protection scope of the present invention.

Claims (2)

1. a spherical vane compressor is characterized in that, it comprises housing (1), rotor (2), two blades (3), two Stamping Steel Ribbons (4), two distribution awls (5) and two cushion blocks (6) etc.; Rotor (2) is positioned at the center; Housing (1) is positioned at the outside; Two distributions awls (5) lay respectively in the conical hollow face of rotor (2) two ends, and two blades (3) lay respectively at the both sides of rotor (2), and be placed in housing (1) diagonal angle hollow ring (being guiding groove) in; With rotor (2) at an angle, the ratio that just is cut to housing (1) height and housing (1) end circular diameter of this angle; The frustum cone side of plane of blade (3) and distribution awl (5) fits; Stamping Steel Ribbon (4) is positioned between rotor (2) and the blade (3); Fit in a plane of its plane one side and rotor (2); Cylinder one side is then fitted with the cylinder E1 of blade (3), cushion block (6) be positioned at housing (1) diagonal angle hollow ring, just in time fill up the vacancy that forms by blade (3), rotor (2) and Stamping Steel Ribbon (4).

2. according to the said spherical vane compressor of claim 1, it is characterized in that said blade (3) is surrounded by two plane A1, B1 and two cylinder C1, E1 and forms; Wherein, cylinder C1 is that the center is centre of sphere O1, radius and the identical cylinder of radius of the cylinder E4 of the hollow ring of housing (1), and cylinder E1 is that the center is that centre of sphere O1, radius are the cylinder of O1K1, and some K1 was the vertical axis of symmetry of centre of sphere O1 and the intersection point of cylinder E1; Two plane A1 are parallel with B1, connect cylinder C1 and E1; The distance of two parallel plane A1 and B1 is the thickness of blade (3), and the thickness of blade (3) equates with the hollow ring width of housing (1); The length of O1K1 is the height sum of the half the and Stamping Steel Ribbon of rotor (2) thickness;

Said Stamping Steel Ribbon (4) upside is that a center is the cylinder that centre of sphere O1, radius equate with the cylinder E1 radius of blade (3); Downside is a plane; The perpendicular distance of centre of sphere O1 and this time side plane is the half the of rotor (2) thickness; Cylinder G1 is that the center is the cylinder that O1, radius equate with the cylinder P2 radius of rotor (2); Sphere F1 is that the centre of sphere is the sphere that O1, radius equate with the sphere F4 radius of housing (1), and plane H1 is parallel with I1, and the width of Stamping Steel Ribbon (4) (being the distance of plane H1 and I1) equates with blade (3) thickness; Blade (3) and Stamping Steel Ribbon (4) are axisymmetric;

Said rotor is an one flat plate in the middle of (2); Two waist places are two identical director circle platforms in the middle of dull and stereotyped, and one of them director circle platform bottom surface is face B2, and upper bottom surface is that the center is the identical cloudy cylndrical surface P2 of radius of O2 radius and the middle cylinder G1 of Stamping Steel Ribbon (4) with dull and stereotyped connecting part; Director circle platform cone angle is identical with the cone angle of cloudy round platform H2; The bottom surface A2 and the B2 of two director circle platforms is parallel disks, and two dull and stereotyped planar I 2 are parallel with J2, and the sphere E2 and the F2 centre of sphere are the big sphere in the outside about O2; G2 and H2 are two identical cloudy round platform part sides; One of them cloudy round platform up and down was disk B2 and was the disc of diameter with K2L2 that the distance of two parallel plane I2 and J2 was the thickness of rotor (2) respectively in two ends, and the length of straigh line of K2M2 is the width of rotor (2); Whole rotor (2) also is an axisymmetric not only about center O 2 symmetries;

Said distribution awl (5) is a round platform; The radius of end face A3 and bottom surface B3 respectively and the cloudy round platform of rotor (2) up and down the radius of two bottom surfaces equate; Highly also the height with the cloudy round platform of rotor (2) equates, two distributions are bored the spatial position of (5) to decide as follows: after guaranteeing to assemble, the corresponding parallel plane C4 of hollow ring or the D4's two distributions awl (5) frustum cone side of housing (1) fit respectively with accordingly; The conical surface of point D3 to E3 is an air inlet face; Point D3 was the horizontal axis in the center of circle and the intersection point of bottom surface B3, and the position of some E3 is when rotor (2) during perpendicular to the paper position, the intersection point that justify at the plane and the end on the left of the rotor (2); The conical surface of point D3 to G3 is a deflation area, and the conical surface of D3 to G3 is less than 90 degree;

Said housing (1) is the dolioform sphere that two spherical crowns are fallen at parallel section of two; Thickness equates with the width K2M2 of rotor (2); End face A4 and bottom surface B4 are the parallel disks that two radiuses equate, sphere F4 is to be the centre of sphere with O4, the outside sphere that equates of the radius of sphere E2 and F2 greatly about radius and rotor (2); The diagonal angle of housing (1) sphere is a hollow ring; Two side C4 of hollow ring are parallel planar circulars with D4, and the cylinder E4 of hollow ring is the cylinder of central shaft through O4, is positioned on the diagonal of housing; Whole housing (1) is about billiard table center O 4 symmetries;

Said cushion block (6) is one section annulus; Its outer side surface A5 is the cylinder that radius equates with the cylinder E4 external diameter of housing (1) hollow ring; Inner side surface B5 is the sphere that radius equates with housing (1) sphere F4 radius; Two waist C5 and D5 are the cylinders that radius equates with the radius of blade (3) bottom surface cylinder E1, and the thickness of cushion block (6) is identical with blade (3) thickness; Cushion block (6) is shaped as axisymmetric;

When said spherical blade compressor input torque, low-pressure gas sucks from the air inlet face of the some D3 to E3 of distribution awl (5), pressurized gas from the deflation area of some D3 to G3 of distribution awl (5) be discharged to load.

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