JPH0810658Y2 - Enclosure intake / exhaust device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an intake / exhaust device for an enclosure used in, for example, a cogeneration system including related equipment for power supply and heat supply. Is.

(Prior Art) As shown in FIGS. 11 and 12, a conventional enclosure used in a cogeneration system of this type includes a gas engine 12, a generator 13, and a gas inside the enclosure body 11. Exhaust gas treatment device (three-way catalytic converter) 14 continuously connected to the exhaust system of the engine 12
Since the fresh water exhaust gas heat exchanger 14b and the silencer 14c are incorporated, it is necessary to keep the temperature below a certain temperature by forcibly ventilating the inside. Therefore, the intake unit 15 is provided on one side of the enclosure body 11, and the exhaust unit 16 is provided on the other side. Inside the intake unit 15 and the exhaust unit 16, splitters as muffling structure parts are respectively provided.

Then, by the blower 17 horizontally attached to the lower part of the intake unit 15, the outside air sucked from the intake hole 18 provided on the side surface of the intake unit 15 passes through the splitter in the intake unit and the upper surface of the enclosure main body 11. Further, the exhaust gas from the enclosure is exhausted from the enclosure through the exhaust port 19 provided on the upper surface of the enclosure body 11 and the splitter inside the exhaust unit 16 to the outside through the exhaust hole 20 provided on the side surface of the exhaust unit 16. Exhausted.

(Problems to be Solved by the Invention) As described above, since the large intake unit 15 and the exhaust unit 16 are conventionally installed outside the enclosure body 11, there is a problem that the enclosure becomes large.

In addition, since intake and exhaust are performed via the intake unit 15 and the exhaust unit 16 provided outside the enclosure body 11, there are many twists and turns in the air flow, and the air flow is not smooth, which results in noise. There are problems such as easy occurrence, pressure loss, and a decrease in ventilation volume.

Furthermore, as shown in FIG. 13 and FIG. 14, since the intake hole 18 and the exhaust hole 20 are conventionally different shapes,
The hood and the intake / exhaust duct attached to the intake hole 18 and the exhaust hole 20 also need to be special ones, so it was not easy to switch between indoor installation and outdoor installation. .

The present invention has been made in view of these points,
Aiming to realize an enclosure that is more compact than the conventional type, has improved characteristics regarding noise, pressure loss, and ventilation volume, and that can be easily installed both outdoors and indoors by improving the intake and exhaust devices. To do.

[Constitution of device]

(Means for Solving the Problems) In the invention of claim 1, the enclosure is provided with an intake device 41 and an exhaust device 42, and the intake device 41 and the exhaust device 42 ventilate the inside of the enclosure. In the exhaust device, the air intake device 41 is provided with a sound deadening structure portion 44 inside an air intake hole 43 opened in the enclosure body 31, and the sound deadening structure portion 44 is partitioned and formed by a partition plate 45 in the enclosure body. An air blow port 47 is opened on the side of the partition plate 45 facing the device in the enclosure, which is communicated with the air intake chamber 46, and a blower 48 is attached to the air blow port 47.
Is an intake / exhaust device.

The invention of claim 2 is the intake / exhaust device according to claim 1, wherein the flow straightening plates 49a, 49 are provided between the silencer structure portion 44 of the intake device 41 and the blower 48.
b is provided.

According to a third aspect of the invention, in the intake / exhaust device of the first aspect, two air blowers 48 of the intake device 41 are provided side by side.

According to a fourth aspect of the present invention, in the intake / exhaust device according to the first aspect, a cell 62 as a sound deadening structure portion is provided inside the exhaust hole 61 opened in the enclosure body 31 as the exhaust device 42. .

According to a fifth aspect of the invention, in the intake / exhaust device of the fourth aspect, the intake hole 43 and the exhaust hole 61 are formed in the same shape and the same size.

(Operation) According to the invention of claim 1, the blower 48 of the intake device 41 causes the outside air to be sucked into the intake chamber 46 in the enclosure body 31 from the intake hole 43 through the muffling structure portion 44, and further from the blower port 47 to the enclosure body. It is sent into 31 and finally exhaust system 42
Exhausted to the outside.

According to the second aspect of the present invention, the flow of air from the muffling structure portion 44 of the intake device 41 to the blower 48 is smoothly guided by the straightening vanes 49a and 49b.

According to the third aspect of the invention, the two blowers 48 generate a relatively uniform air flow in the enclosure body 31.

The invention of claim 4 is to install the cell from the inside of the enclosure body 31.
Exhaust is made from the exhaust hole 61 via 62.

According to the invention of claim 5, the same protective screen 71, hood 72 or duct 73 is selectively attached to the intake hole 43 and the exhaust hole 61 depending on whether the enclosure is installed outdoors or indoors.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to an embodiment shown in FIGS. 1 to 10.

As shown in FIG. 5 and FIG. 6, a gas engine 33 for operating the generator 32 is installed in the center of the enclosure body 31, and the exhaust gas of the gas engine 33 is
A catalyst silencer installed in the upper part of the enclosure main body 31 via the pipe 34 (silencer with a built-in three-way catalyst)
35 to the fresh water exhaust gas heat exchanger 37 via the pipe 36, and finally the pipe 38 to the enclosure body 31.
Is discharged to the outside. A large number of doors 39 are attached to the peripheral wall of the enclosure body 31.

As shown in FIG. 1, in order to ventilate the interior of the enclosure body 31, an intake device 41 is provided inside the enclosure body 31 and on the upper backside of the rear plate 31a.
Further, an exhaust device 42 is provided inside the enclosure body 31 and behind the upper part of the front plate 31b.

As shown in FIG. 1, in the intake device 41, an intake hole 43 is opened in the center of the upper part of the rear plate 31a of the enclosure body 31, and a splitter 44 as a sound deadening structure is provided inside the intake hole 43. The splitter 44 includes an intake chamber 46 defined by a partition plate 45 in the enclosure body 31.
The partition plate 45 is provided with an inclined surface portion 45a at a portion facing the devices in the enclosure (the generator 32, the gas engine 33, etc.), and the two ventilation ports 47 are provided in the inclined surface portion 45a.
Is opened, and two blowers 48 are attached to each of the blower openings 47. Further, the splitter 44 and the blower are attached.
A plurality of straightening vanes 49a that guide the air flow to the center between 48 and
And a plurality of straightening vanes 49b for guiding the airflow downward.

The straightening vanes 49a and 49b are provided as needed, but are effective in increasing the ventilation amount and reducing the intake noise and the pressure loss.

As shown in FIG. 2, the splitter 44 of the intake device 41 has a vertical sound absorbing member 51 that divides the intake hole 43 into two parts at the center thereof.
And a vertical sound absorbing material 52 which is slightly wider than the width of the air intake hole 43 are combined in a T-shape, and a plurality of horizontal sound absorbing materials 53 are combined between the vertical sound absorbing materials 51, 52 and the enclosure body 31. Further, as shown in FIG. 1, a large number of guide vanes 54 are inserted in the horizontal sound absorbing material 53. Ventilation holes 55 are formed on both left and right sides of the vertical sound absorbing material 52.

FIG. 3 shows a combined portion of the vertical sound absorbing material 51 and the horizontal sound absorbing material 53. This vertical sound absorbing material 51 and horizontal sound absorbing material 53
In each case, a punching metal 57 is stretched on the outer surface of a sound absorbing plate (trade name: Glaslon board) 56, and a steel plate 58 is further provided inside the vertical sound absorbing members 51 and 52.

As shown in FIG. 1, in the exhaust device 42, an exhaust hole 61 is opened in one side plate 31c orthogonal to the front plate 31b of the enclosure body 31, and inside the exhaust hole 61, a large number of sound absorbing structure parts are provided. A cell 62 is provided, and a current plate 63 is provided at the inner end of the cell 62.
Is provided. The current plate 63 is provided as necessary to reduce pressure loss.

The cell 62 is a rectangular cylindrical sound absorbing material (trade name: Glaslon duct board) as shown in FIG. 4, and the opening size and length of each cell 62 are determined by the sound deadening effect.
The number of cells is determined by the amount of exhaust air and the pressure loss. Further, the thickness and density of the sound absorbing material of the cell 62 are determined by the sound deadening effect.

Then, the airflow sucked from the intake holes 43 by the blower 48 of the intake device 41 is guided to the ventilation holes 55 formed on the left and right sides of the vertical sound absorbing material 52 while being silenced by the splitter 44. Further, the straightening vanes 49a and 49b smoothly guide the air from the vent 55 to the two blowers 48. Then, the blower port 47 is provided by the two blowers 48.
A relatively uniform airflow is sent to the entire width of the enclosure main body 31 from the inside, and when it finally passes through the cell 62 of the exhaust device 42, it is silenced and exhausted to the outside through the exhaust hole 61.

The two blowers 48 can reduce noise as compared with the case where one large blower is installed, and can ensure the uniformity of the air flow in the enclosure body. Moreover, one of the two blowers 48 can be used. By selecting the case of operating and the case of operating two units, the temperature inside the enclosure body 31 can be controlled.

The intake hole 43 of the intake device 41 and the exhaust hole 61 of the exhaust device 42 are formed in the same shape and the same size as shown in FIGS. 7 and 8.

FIG. 7 shows an outdoor installation state, in which an intake hole 43 and an exhaust hole are provided.
A protective screen 71 made of expanded metal is attached to 61 to prevent intrusion and discharge of coarse objects. Furthermore, the intake hole 43 and the exhaust hole 61 are equipped with a hood 72 for preventing the intrusion of rainwater during rainfall, but the intake and exhaust air angles should be set in consideration of the influence on the surrounding environment and pedestrians. Set appropriately.

FIG. 8 shows an indoor installation state, and a duct 73 is flange-connected to the intake hole 43 and the exhaust hole 61. In that case, mounting of the protection screen 71 is selected, and when mounting the protection screen 71, the protection screen and the duct flange 74 are connected by a common set screw. Even in the case of this indoor installation type, it is also possible to select the hood and adjust the wind direction of the indoor intake and exhaust.

As described above, the intake hole 43 and the exhaust hole 61 have the same size, and the mounting screw holes around the intake hole 43 and the exhaust hole 61 are provided with the common size so that the equipment is unified and the intake hole 43 is provided. And hood with a common shape for exhaust hole 61
Connect 72, duct 73, etc. Further, when the hood is attached, the outer protruding dimension of the hood 72 is set within the open dimension of the enclosure door to effectively utilize the limited installation space. Further, the height dimensions of the intake hole 43 and the exhaust hole 61 are set in consideration of ensuring a sufficient overhead height when the worker walks around the enclosure.

Next, FIG. 9 and FIG. 10 show a single fan cell type air intake device (modification) 81.
An intake hole 82 is opened at the upper right side of the rear plate 31a of the 31.
A cell 83 as a sound deadening structure is provided inside the air intake hole 82, and the cell 83 is a partition plate 84 inside the enclosure body.
The partition plate communicates with the intake chamber defined by
One blower opening 86 is opened in the inclined surface portion 85 facing the equipment in the enclosure 84, one blower 87 is provided on the intake chamber side of this blower opening 86, and the wind direction is determined on the opposite side (discharge side). The louver 88 is provided. Incidentally, the cell
If necessary, a current plate may be provided between the 83 and the blower 87.

In this way, the directions and heights of the intake holes 43 and 82 are arbitrarily set depending on the enclosure installation location and the like.

[Effect of device]

According to the invention of claim 1, in the air intake device, a sound deadening structure is provided inside an air intake hole opened in the enclosure body, and the sound deadening structure is formed in the enclosure body by a partition plate. Since a blower port is opened on the side of the partition plate facing the in-enclosure equipment and a blower is provided at this blower port, a more compact enclosure than the conventional type can be obtained. In addition, since the outside air is directly sucked into the enclosure body and exhausted directly from the enclosure body, the air flow is smoother than before, which reduces noise and pressure loss, and reduces the ventilation volume. To increase.

According to the second aspect of the invention, since the rectifying plate is provided between the muffling structure section and the blower, the smooth induction of the air flow by the rectifying plate can improve the characteristics relating to noise, pressure loss and ventilation.

According to the invention of claim 3, since two blowers are provided side by side, the noise can be reduced and the uniformity of the airflow in the enclosure body can be secured as compared with the case where one large blower is installed. By selecting whether to operate one of the two blowers or to operate two of them, it is possible to control the temperature inside the enclosure body, and the airflow inside the enclosure body is convenient for cooling the storage equipment. Can be set in good condition.

According to the invention of claim 4, the exhaust device is provided with a cell as a sound deadening structure portion. However, this cell has a sufficient sound deadening effect in a relatively short distance (even if the sound source has a positional relationship where it can be directly visually recognized from the outside). Characteristics that do not affect the noise reduction effect) can be obtained, so it can be installed in a small space, and this exhaust cell can reduce exhaust pressure loss because it has no bends compared to conventional exhaust splitters. Is easy. From the above points, there is a great deal of freedom in the location of installation of this exhaust device, which can contribute to the compactification of the enclosure.

According to the invention of claim 5, since the intake hole and the exhaust hole are formed to have the same shape and the same size, unified equipments (hood, intake / exhaust duct, etc.) are commonly used for the intake hole and the exhaust hole. Therefore, it is easy to switch between the case where the enclosure is installed indoors and the case where the enclosure is installed outdoors, and the enclosure can be easily installed both outdoors and indoors.

[Brief description of drawings]

1 to 10 are views relating to the present invention, FIG. 1 is a perspective view showing an embodiment of an intake and exhaust device of an enclosure of the present invention, and FIG. 2 is a perspective view showing a muffling splitter of the intake device. 3 is an enlarged sectional view showing a part of the splitter, FIG. 4 is a perspective view showing a cell of an exhaust device, and FIG.
The figure is a plan view showing the arrangement of equipment inside the enclosure.
The figure shows the front view of the arrangement of the equipment inside the enclosure.
The figure is a perspective view of the enclosure installed outdoors, 8th
The figure is a perspective view showing the enclosure installed indoors, No. 9
FIG. 11 is a perspective view of the inside of an enclosure showing a modified example of the intake device, FIG. 10 is a perspective view of its suction hole, and FIGS. 11 to 14 are diagrams showing a conventional cogeneration system enclosure. Is its plan view, FIG. 12 is its front view, FIG. 13 is its left side view, and FIG. 14 is its right side view. 31 …… Enclosure body, 41 …… Intake device, 42 …… Exhaust device, 43 …… Intake hole, 44 …… Muffling structure part, 45 …… Partition plate, 46 …… Intake chamber, 47 …… Blower, 48 ...... Blower, 49a,
49b: Current plate, 61: Exhaust hole, 62: Cell as a sound deadening structure.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiromi Shimoda 1-3-2 Kita-Aoyama, Minato-ku, Tokyo Inside New Caterpillar Mitsubishi Corporation (72) Hiroyuki Oami 1-2-3, Kita-Aoyama, Minato-ku, Tokyo No. New Caterpillar Mitsubishi Corp. (72) Inventor Keiji Hitomi 1-32 Kita-Aoyama Minato-ku, Tokyo No. 2-3 New Caterpillar Mitsubishi Corp. (72) Inventor Shuji Kawasaki 1-2-2 Kita-Aoyama Minato-ku, Tokyo No. 3 New Caterpillar Mitsubishi Corporation (72) Inventor Mitsuhiro Hemi 1-2-3 Kita-Aoyama, Minato-ku, Tokyo No. 3 New Caterpillar Mitsubishi Corporation (72) Inventor Fumio Fujiwara 1-2-chome Kita-Aoyama, Minato-ku, Tokyo No. 3 Inside New Caterpillar Mitsubishi Corporation (56) References Actual Opening 1-124047 (JP, U) Actual Opening Sho 63-123736 (JP, U) Actual Opening 51-141738 (JP, U)

Claims (5)

[Scope of utility model registration request] 1. An intake / exhaust device for an enclosure in which an intake device and an exhaust device are provided in an enclosure, and the inside of the enclosure is ventilated by the intake device and the exhaust device, wherein the intake device is opened in an enclosure body. A sound deadening structure is provided inside the intake hole, and this sound deadening structure is
An enclosure characterized in that it is communicated with an intake chamber defined by a partition plate in the enclosure body, a blower port is opened on the side of the partition plate facing the equipment in the enclosure, and a blower is provided at this blower port. Intake and exhaust device. 2. The intake / exhaust device for an enclosure according to claim 1, wherein a current plate is provided between the sound deadening structure and the blower. 3. The intake / exhaust device for an enclosure according to claim 1, wherein two blowers are provided side by side. 4. The intake / exhaust device for an enclosure according to claim 1, wherein the exhaust device is provided with a cell as a sound deadening structure inside an exhaust hole formed in the enclosure body. 5. The intake / exhaust device for an enclosure according to claim 4, wherein the intake hole and the exhaust hole are formed in the same shape and the same size.