JPH0875379A - Heat exchanger for compressor - Google Patents

Abstract

PURPOSE: To provide a heat exchanger which can be dealt with a heat exchanger required for different heat exchanging performance with a simple structure. CONSTITUTION: A packing 18 is inserted into the groove of a lower flange 17. Since the packing 18 is molded larger than the depth of the groove in its natural state, it protrudes from a surface 171. Then, a lower heat exchanger body 19 is placed on the surface 171 of the lower flange 17, and the packing 19 is inserted to the groove provided on the upper surface 19n of the exchanger 19, the packing 18 is inserted into the grove, and the lower surface 171 of the upper flange 17 is placed in contact with the upper surface 19n of the exchanger 19. Eventually, the through hole of the flange 17 is matched to that of the exchanger 19, a bolt 22 is inserted into the holes, and clamped by a nut 23.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a heat exchanger in a compressor.

[0002]

2. Description of the Related Art Conventionally, a compressor compresses a fluid such as a gas or a liquid, and uses the expansion force of the compressed fluid to drive an actuator or a jig or tool such as an air vise, a chuck or a driver. , A spray gun for painting, a spray nozzle for cleaning and washing, or a cooling device for compressing and liquefying a refrigerant gas to vaporize it to remove latent heat and cool it. In the air compressor used as the above-mentioned air compressor, it is necessary to remove the drain and keep the compressed air clean, lower the temperature of the compressed gas by the aftercooler or intercooler, liquefy the water vapor, and guide it to the air pressure filter. Water droplets and foreign matter are separated, and in a cooling device using a refrigerant gas, after cooling the compressed refrigerant gas,
Both require heat exchangers to vaporize.

Each of the devices described above requires different heat exchange capacities, and different heat exchangers have been designed and manufactured in the past to accommodate them. In addition, when using the main part of an existing heat exchanger, a tubular object with fins was welded between the headers in the required number of pipes, or plate fins were welded in the required number of pipes. .

[0004]

According to the above-mentioned prior art, it is time consuming, expensive and uneconomical to design and manufacture each heat exchanger corresponding to the required heat exchange capacity, and the existing heat exchangers are not used. When using the main part of the exchanger, it is possible to weld fin tubes between the required number of headers, or work on the pipe to change the contact area with the fluid,
It is time-consuming to manufacture, costly, there are many places where brazing, welding, etc. need to be checked for leaks.Maintenance is required because the fins are made of thin aluminum plate for brazing or welding to the pipe. At the same time, it was necessary to take care in handling so that the fins would not bend during cleaning. In view of the above-mentioned circumstances, an object of the present invention is to provide a heat exchanger that can cope with heat exchangers that require different heat conversion performances with a simple configuration.

[0005]

A feature of the present invention is that it has an introduction flange for introducing a fluid, a heat exchanger body, a discharge flange for discharging the fluid, and a fastening means for fixing these three components, and heat exchange. That is, it is possible to select the number of container bodies or the introduction flange and the discharge flange.
Therefore, in a heat exchanger in a compressor used as an intercooler or an aftercooler of a compressor, in order to distribute a fluid, it has a passage surrounded by a bone wall inside, and the passage is provided through the bone wall. It has a main body that exchanges heat with the internal fluid and the external fluid, an introduction passage for the fluid from the compressor, an introduction flange surrounded by a bone wall, and a discharge passage for the fluid, and the circumference is defined by the bone wall. A surrounding discharge flange, and a fixing means for fixing and integrating these three bodies by interposing the main body between the introduction flange and the discharge flange, the introduction flange and the discharge flange, or The main body can be selected.

Further, in order to circulate the fluid, it has a plurality of passages which are surrounded by a bone wall and which are provided in parallel with each other and are separated by a space, and the passage is provided through the bone wall. A main body for exchanging heat with the internal fluid and the external fluid, an introduction passage surrounded by a bone wall for circulating the fluid, penetrating the upper surface and the lower surface, and having an opening end on the lower surface and adjacent to the plurality of passages. An introduction flange provided with two matching passages and a direction changing passage for changing the flow direction of the fluid, and a discharge passage surrounded by a bone wall for passing the fluid and penetrating the upper surface and the lower surface. And a discharge flange having an opening end on the upper surface and a direction changing passage for changing the flow direction of the fluid corresponding to two adjacent passages of the plurality of passages, the introduction flange and the discharge By interposing the main body between the flanges, It is preferable that the three members are fastened to be integrated and the fluid from the introduction passage of the introduction flange is discharged from the discharge passage of the discharge flange through all of the plurality of passages of the main body. Is. Further, it is preferable that the number of the direction changing passages is an integer of 1 or more, and the number of the passages of the main body is an odd number of 3 or more.

Further, in order to circulate the fluid, it has a plurality of passages which are surrounded by a bone wall and which are provided in parallel with each other and separated from each other by a space, and the passage is provided through the bone wall. A main body that exchanges heat with the internal fluid and the external fluid, and in order to circulate the fluid, it is surrounded by a bone wall and has an open end at the bottom, and all the passages provided in parallel in the main body A corresponding flow passage for the fluid, an introduction flange provided with an introduction passage for introducing the fluid into the flow passage from the upper surface opening, and a peripheral portion surrounded by a bone wall for circulating the fluid, having an opening end at the upper side. And a discharge flange provided with a fluid flow passage corresponding to all of the plurality of passages provided in parallel to the main body, and a discharge passage for discharging the fluid from the upper surface opening to the flow passage, and the introduction flange Between the discharge flange and With the main body interposed, these three members are fastened to be integrated, and the fluid from the introduction passage of the introduction flange is branched into the plurality of passages of the main body and discharged from the discharge passage of the discharge flange. It is preferable to configure so that Further, it is preferable that the introduction flange and the discharge flange are configured so that they are used by the same member.

[0008]

According to this structure, the present invention has the following functions. A feature of the present invention is that in a heat exchanger in a compressor used as an intercooler or an aftercooler of a compressor, in order to pass a fluid, a passage surrounded by a bone wall is provided inside, and the bone wall is A main body for exchanging heat between the fluid in the passage and the external fluid, an introduction passage for the fluid from the compressor, an introduction flange surrounded by a bone wall, and a discharge passage for the fluid. Is provided with a discharge flange surrounded by a bone wall, and a fastening means for fastening the three members together by interposing the main body between the introduction flange and the discharge flange. It is possible to select the number of heat exchanger bodies or the introduction flange and the discharge flange according to the required heat exchange capacity. Further, in order to circulate the fluid, it has a plurality of passages which are surrounded by a bone wall and which are provided in parallel with each other and are separated by a space, and the fluid in the passage is provided through the bone wall. And a main body that exchanges heat with an external fluid, an introduction passage that is surrounded by a bone wall to pass the fluid, penetrates the upper surface and the lower surface, and has an opening end on the lower surface and is adjacent to the plurality of passages. An introduction flange provided with a direction changing passage that changes the flow direction of the fluid corresponding to the passage of the book, and a discharge passage that is surrounded by a bone wall to pass the fluid and that penetrates the upper surface and the lower surface.
A discharge flange provided with an opening end on the upper surface and two adjacent passages of the plurality of passages, and a direction changing passage for changing the flow direction of the fluid in correspondence with the passage, between the introduction flange and the discharge flange The main body is interposed in the main body, and these three members are fixedly fastened to be integrated, and the fluid from the introduction passage of the introduction flange passes through all of the plurality of passages of the main body and the discharge passage of the discharge flange. When the number of the passages for changing the direction is an integer of 1 or more and the number of the passages of the main body is an odd number of 3 or more, the fluid discharge passage is the same as the introduction passage. Side, that is, there is no need to provide a discharge passage on the introduction flange,
The introduction flange and the discharge flange can be used as the same member, and the discharge flange can be provided on the discharge side of the heat exchanger body by rotating the introduction flange by 180 degrees.

Further, in order to circulate the fluid, it has a plurality of passages which are surrounded by a bone wall and are provided in parallel with each other and are separated by a space, and the passage is provided through the bone wall. A main body that exchanges heat with the internal fluid and the external fluid, and in order to circulate the fluid, it is surrounded by a bone wall and has an open end at the bottom, and all the passages provided in parallel in the main body A corresponding flow passage for the fluid, an introduction flange provided with an introduction passage for introducing the fluid into the flow passage from the upper surface opening, and a peripheral portion surrounded by a bone wall for circulating the fluid, having an opening end at the upper side. And a discharge flange provided with a fluid flow passage corresponding to all of the plurality of passages provided in parallel to the main body, and a discharge passage for discharging the fluid from the upper surface opening to the flow passage, and the introduction flange Between the discharge flange and With the main body interposed, these three members are fastened to be integrated, and the fluid from the introduction passage of the introduction flange is branched into the plurality of passages of the main body and discharged from the discharge passage of the discharge flange. In order to pass the fluid through the heat exchanger body,
It is cooled in a shorter time than the passage of the fluid through all the above passages. Further, even when this fluid is split, the introduction flange and the discharge flange can be used by the same member.

[0010]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. However, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are merely illustrative examples, without any intention of limiting the scope of the present invention thereto unless otherwise specified. Absent.

FIG. 1 is an assembly view of a heat exchanger in a compressor according to the present invention, FIG. 2 is an embodiment of a one-passage type flange, FIG. 3 is an embodiment of a packing, and FIG. 5, one embodiment of the heat exchanger main body, FIG. 5 is an operation explanatory view of a one-passage system, FIG. 6 is an embodiment illustration of a multi-passage flange, and FIG. FIG. 8 is a block diagram applied to a compressor as an aftercooler, FIG. 9 is a block diagram applied to a compressor as an intercooler, FIG. 10 is a block diagram applied to a compressor as an intercooler, and FIG. It is an example figure of a machine.

The compressor used in the present invention has a structure as shown in FIG. In the figure, the compressor 1
Is provided with a cylinder cover 3 having a filter 2a of a suction filter 2 for filtering gas sucked from the atmosphere, a suction port 3a sucking gas from the filter 2, a suction passage 3b, and a discharge passage 3c below the upper portion. Is a valve set 4 having a suction hole 4a for sucking gas from the suction passage 3b, a suction valve 5 for opening and closing the suction hole 4a, a discharge hole 4b for discharging compressed gas, and a discharge valve 6 for opening and closing the discharge hole 4b. Is provided. Below the valve set 4, a metal cylinder 7 formed of cast iron or aluminum is provided, and inside thereof, a self-lubricating heat-resistant resin piston 8 that is vertically movable is provided. . The piston 8 is formed of a resin material having a self-lubricating property, such as a carbon-based Copuna resin having a low coefficient of thermal expansion and excellent in heat resistance and wear resistance. A through hole 8a is provided in the piston 8, and a piston pin 9 formed of carbon steel such as SCM is rotatably inserted into the through hole 8a, and both ends of the piston pin 9 are retained by retaining rings 11. ing. A connecting rod 10 is rotatably connected to the piston pin 9 through a bearing 10a having a grease-filled needle bearing, and the other end of the connecting rod 10 has a grease-filled ball bearing. It is connected to the crankshaft 12 via 10b. The crankshaft 12 has arms 12a and 12b on the left and right that are eccentric to the bearing 10b, and is rotatably provided via bearings 13a and 15a having grease-filled ball bearings. The arm 12a is provided with a pulley 14 rotated by a belt wound by a motor (not shown), and the arm 12b is provided with a fan 16. Therefore, by rotating the pulley 14, the connecting rod 1
0, the piston 8 moves up and down through the piston pin 9,
It compresses and sucks gas.

Next, the operation of the compressor thus constructed will be described. In FIG. 11, the pulley 14 rotates,
When the piston 8 starts descending from the top dead center, the suction filter 2
The gas sucked through the filter 2a of the
a, through the suction passage 3b, the suction valve 5 is pushed away from the suction hole 4a, and is sucked into the cylinder 7. In this process, the pressure inside the cylinder 7 becomes lower than the atmospheric pressure, so that the discharge valve 6 closes the discharge hole 4b. When the piston 8 reverses and rises from the bottom dead center, the gas in the cylinder 7 is compressed and the suction valve 5
Closes the suction hole 4a, the air pressure in the discharge passage 3c and the discharge valve 6
When the pressure of the compressed gas in the cylinder 7 becomes higher than the total force of the closing force of the above, the discharge valve 6 is pushed up and the compressed gas is discharged to the discharge passage 3c.

FIG. 8 is a block diagram in which a heat exchanger as an aftercooler is applied to a compressor. In the figure,
The compressor 1 described above is applied to the compressor 35. Figure 11
A pipe 29 for discharging compressed gas is connected to the discharge passage 3c of the compressor 1 shown in FIG. 1, and this pipe 29 is connected to a heat exchanger 26 described later. A discharge pipe 30 is connected to the discharge end of the heat exchanger 26, and the pipe 30 is connected to the pneumatic filter 27. The air pressure filter 27 filters dirty compressed air and discharges it as clean air. The compressed air cooled by the heat exchanger 26 is taken in, and swirling motion is given to the compressed air, whereby the centrifugal effect is produced. Water droplets and foreign matter are separated on the inner wall of the surroundings and discharged to the outside by a container provided below. Further, the compressed air is further stored in the air tank 28 by the pipe 31 after the particulate dust is removed by the filter provided with numerous fine holes. The air tank 28 equalizes the pulsation of the compressed air and prevents a sudden pressure drop even if a large amount of compressed air is temporarily consumed.

FIG. 9 is a block diagram in which a heat exchanger is applied to a compressor as an intercooler. In the figure, the compressor 1 described above is applied to the compressor 35. A pipe 29 for discharging compressed gas is connected to the discharge passage 3c of the compressor 1 shown in FIG. 11, and this pipe 29 is connected to a heat exchanger 26 described later. A discharge pipe 30 is connected to the discharge end of the heat exchanger 26, and the pipe 30 is connected to the pneumatic filter 27. The air pressure filter 27 filters the dirty compressed air as described above and discharges it as clean air. The clean compressed air is supplied to the second-stage high-pressure compressor 36 via the pipe 31. This compressor 36 has the same configuration as the compressor 1 shown in FIG. 11, and generally, the crankshaft 12 is provided with another connecting rod in parallel with the connecting rod 10. The connecting rod is connected to another piston. The compressed air discharged from the compressor 36 is temporarily stored in the air tank 28 described above.

FIG. 10 is another block diagram in which a heat exchanger is applied to a compressor as an intercooler. The difference from FIG. 9 is that it has two low pressure compressors 35 and two heat exchangers 26 accordingly. Depending on the amount of compressed air required, it is adjusted not only by the heat exchange capacity but also by the number of compressors. In the figure, the compressor 1 described above is applied to the compressor 35. A pipe 29 for discharging compressed gas is connected to the discharge passage 3c of the compressor 1 shown in FIG. 11, and this pipe 29 is connected to a heat exchanger 26 described later. Discharge pipes 33 and 34 are connected to the discharge end of the heat exchanger 26, and are connected to the air pressure filter 27. The air pressure filter 27 filters the dirty compressed air as described above and discharges it as clean air. The clean compressed air is supplied to the second-stage high-pressure compressor 36 via the pipe 31. This compressor 36 corresponds to the compressor 1 shown in FIG.
In general, the crankshaft 12 is provided with another connecting rod in parallel with the connecting rod 10.
The connecting rod is connected to another piston. The compressed air discharged from the compressor 36 is temporarily stored in the air tank 28 described above.

Next, the heat exchanger according to the present invention applied to the above-mentioned devices will be described. FIG. 1 is an assembly view of a heat exchanger in a compressor according to the present invention. In the figure, the upper flange 17 is provided with a through hole 17c at the right end from the upper surface 17a to the lower surface 17l (FIG. 2). The through hole 17c is provided with a thread groove 17b. A groove 17g (FIG. 2 (B)) into which the introduction pipe 20 for introducing the fluid from the compressor 35 is screwed, and the packing 18 formed of silicone rubber shown in FIG. 3 is inserted into the lower surface 17l (FIG. 2 (B)).
(See) is provided. The depth of the groove 17g is shorter than the thickness of the packing 18. The left side of the through hole 17c is divided into upper and lower parts by a bone wall 17d, the upper part is provided with a cooling fin 17e, the lower part is separated by a bone wall 17i, and a space 17k having two fins 17f is provided. There is. The space 17k serves as a fluid direction changing passage, which will be described later. Further, six through holes 17h are provided for inserting the bolts 22 from the upper surface 17a toward the lower surface 17l. The lower flange 17 is positioned by rotating the exhaust pipe 21 in the through hole 17c disclosed in FIG. 2 by 180 degrees with respect to the upper flange 17. These flanges 17, 17
Is an aluminum die cast product formed of a common member except for the introduction pipe 20 and the discharge pipe 21.

In FIG. 1, the heat exchanger 19 located between the flanges 17 and 17 is molded by aluminum die casting, and has two bosses 19a having through holes that are engaged with other members (not shown) if necessary. Is provided at the right end. And
As shown in FIG. 4, five passages 19b, 19c, 19 surrounded by bone walls from the upper surface 19n to the lower surface 19m.
d, 19e, and 19f are separated from each other by a space 24 and are arranged in parallel. Cooling fins 19i are provided before and after each passage surrounded by the bone wall, and grooves 19g (see FIG. 4B) into which the packing 18 shown in FIG. 3 is inserted are provided on the upper surface 19n and the lower surface 19m. It is provided. The depth of the groove 19g is as follows when the packing 18 is inserted.
When assembling the heat exchanger, cover the contact surface of the mating flange or heat exchanger body, but in that state, even if the opposite surface of the packing contacts the bottom of the groove provided on the mating side Although there is a gap between the contact surfaces of the above, the gap varies depending on the diameter of the packing 18 and the shape of the groove. Further, six through holes 19h are provided for inserting the bolts 22 from the upper surface 19n to the lower surface 19m.

Next, the operation of the embodiment of the present invention thus constructed will be described. In FIG. 1, first, the packing 18 is inserted into the groove 17g of the lower flange 17. In the natural state, the packing 18 is formed to be larger than the depth of the groove 17g and therefore protrudes from the surface 17l. Next, the lower heat exchanger body 19 is placed on the surface 17l of the lower flange 17, and the packing 18 is inserted into the groove 19g provided on the upper surface 19n of the heat exchanger body 19. Another heat exchanger 19 is placed on the upper surface 19n of the heat exchanger 19, the packing 18 is inserted into the groove 19g, and the lower surface 17l of the upper flange 17 is placed on the upper surface 19n of the heat exchanger 19. Abut and place. Then, finally, the through hole 17h of the flange 17 and the through hole 19h of the heat exchanger 19 are aligned, the bolts 22 are inserted into these through holes, and the nuts 23 are tightened. As a result, both sides of the packing 18 are pressed by the bottom surface of the groove and spread into the groove formed between the flange and the heat exchanger or the contact surfaces of the heat exchangers, so that the contact surfaces can be completely sealed. it can.

The flow of fluid in the heat exchanger will be described below. FIG. 5 is an explanatory diagram of the operation of the one-passage method. In the same figure, the compressed air discharged from the compressor travels in the direction of arrow 37 in the passage 19b, is changed in direction by the direction change passage 17k in the lower flange 17, enters the passage 19c, and enters the upper flange 17. The direction change passage 1 of the lower flange 17 is entered from the direction change passage 17k into the passage 19d.
The passage 19e enters from 7k, the direction changing passage 17k of the upper flange 17 enters the passage 19f, and the discharge pipe 21
Emitted from. In this process, the fluid exchanges heat with the fluid in the void 24 through the bone wall 19k and is cooled.

In the case of the one-passage system of the present invention, since the embodiment operates as described above, the heat exchange capacity can be reduced by using only one heat exchanger body 19, and the heat exchanger body can be reduced. If the number of 19 is increased, the heat exchange capacity can be increased. Therefore, if the heat exchanger main body 19 is designed and manufactured to have the minimum heat exchange capacity, by selecting the number of heat exchanger main bodies according to the required heat exchange capacity,
Correspondingly, a heat exchanger can be manufactured. Further, although the number of passages of the heat exchanger main body is five in the embodiment,
If it is carried out with an odd number of 3 or more and the direction change passage of the flange 17 is carried out with an integer of 1 or more, the discharge of the compressed air will flow away from the flange on the introduction pipe side,
There is no need to install a compressed air discharge pipe on the introduction pipe side,
The flange of the same member can be used as a compressed air discharge flange by rotating it 180 degrees with respect to the introduction pipe side, and there is no need to separately manufacture a discharge flange.

FIG. 6 shows an embodiment of a multi-passage type flange. Flange 2 molded by aluminum die casting
5, a through hole 25c is opened from the upper surface 25a to the lower surface 25l, and the screw groove 25b is formed in the through hole 25c.
The introduction pipe 20 for introducing the fluid from the compressor 35 is screwed to the thread groove 25b similarly to the flange 17, and the lower surface 25l is formed of the silicone rubber shown in FIG. A groove 25g into which the packing 18 is inserted is provided. The depth of the groove 25g is shorter than the thickness of the packing 18. The left side of the through hole 25c is divided into upper and lower parts by a bone wall 25d, a cooling fin 25e is provided on the upper side, and a cavity 25k having two fins 25f is provided on the lower side. The space 25k serves as a fluid direction changing passage described later. Further, six through holes 25h are provided for inserting the bolts 22 from the upper surface 25a to the lower surface 25l.

This flange 25 is the above-mentioned flange 17
Are formed in the same shape except for the shape of the void 25k. Therefore, although it can be molded as a separate part from the flange 17, the bone wall 17i of the flange 17 can also be manufactured by cutting with a milling cutter.
Since the flange 25 is formed in this manner, the heat exchanger can be assembled as shown in FIG. 1 in place of the flange 17 shown in FIG.

The flow of fluid in the multi-passage heat exchanger will be described below. FIG. 7 is an explanatory diagram of the operation of the multi-passage system. In the figure, the compressed air discharged from the compressor enters the flange 25 in the direction of arrow 37, and the arrow 38
The compressed air, which is divided into the flow paths 19 and 39 and travels in the passage 19b as an arrow 38, is redirected by the redirecting passage 25k in the lower flange 25 and proceeds toward the discharge pipe 21. On the other hand, the compressed air diverted in the direction of arrow 39 is diverted in the direction of arrow 40 into the passage 19c, further diverted in the direction of arrow 41 into the passage 19d, further diverted in the direction of arrow 42, and further divided into the passage 19c. Enter 19e. The remaining compressed air is changed in direction from the end of the direction change passage 25k of the upper flange 25, enters the passage 19f, and goes to the discharge pipe 21. The compressed air that advances in the lower flange 25 toward the discharge pipe 21 has an arrow 40 flowing in the passage 19c on the way.
The compressed air shown by the arrow 41 flowing through the passage 19d and the compressed air shown by the arrow 42 flowing through the passage 19e merge with each other, and finally merge with the compressed air shown by the arrow 43 flowing through 19f to form an arrow 44, which is discharged from the discharge pipe 21. In this process, the fluid exchanges heat with the fluid in the void 24 through the bone wall 19k and is cooled.

In the case of the multi-passage system of the present invention, the embodiment is
Since the operation as described above is performed, the heat exchange capacity can be reduced by using only one heat exchanger body 19, and the heat exchange capacity can be increased by increasing the number of the heat exchanger bodies 19. is there. Therefore, if the heat exchanger body 19 is designed and manufactured to have the minimum heat exchange capacity, the heat exchanger can be manufactured correspondingly by selecting the number of heat exchanger bodies according to the required heat exchange capacity. It is a thing. Also,
Although the number of passages in the heat exchanger body is set to 5 in the embodiment, any number may be used. Further, the flange of the same member can be used as a compressed air discharge flange by rotating 180 degrees from the introduction pipe side, and it is not necessary to manufacture a separate discharge flange. Also, this multi-passage system
There is an advantage that the time for heat conversion is shorter than that of the one-passage method described above. That is, in the one-passage system, compressed air passes through all the passages, but in the multiple-passage system, compressed air is branched and passes through each passage. Therefore, in FIG. 7, the passage 19b and the direction changing passage 25k of the lower flange are formed. You will only have to go through the total aisle distance with.

In this embodiment, the fluid flowing in the flange is described as compressed air. However, the fluid is not limited to this, and even a liquid such as oil is a mixture of liquid and gas. Of course, it may be. Further, in the present embodiment, the flange and the heat exchanger body are separately manufactured by aluminum die casting, and both are used in combination, so that it is possible to manufacture any specification product with these combinations, and it is cheap and mass producible. It is also possible to provide a heat exchanger that is robust and easy to clean during maintenance.

[0027]

As described above in detail, according to the present invention, the heat exchange capacity can be reduced by using one heat exchanger body.
Further, the heat exchange capacity can be increased by increasing the number of heat exchanger main bodies. Also, it is not necessary to provide a compressed air discharge pipe on the introduction pipe side, and the flange of the same member can be rotated 180 degrees with respect to the introduction pipe side to be used as a compressed air discharge flange, and a separate discharge flange needs to be manufactured. There is nothing. Therefore, according to the present invention, if the heat exchanger main body is designed and manufactured to have the minimum heat exchange capacity, the number of the heat exchanger main bodies is selected according to the required heat exchange capacity, and accordingly the heat exchanger is correspondingly selected. Can be manufactured, and has a remarkable effect with a simple configuration.

[Brief description of drawings]

FIG. 1 is an assembly diagram of a heat exchanger in a compressor according to the present invention.

FIG. 2 is a diagram showing an embodiment of a one-passage type flange.

FIG. 3 is a diagram showing an embodiment of packing.

FIG. 4 is a diagram showing an embodiment of a heat exchanger body.

FIG. 5 is an operation explanatory view of the one-passage method.

FIG. 6 is a diagram showing an example of a multi-passage type flange.

FIG. 7 is an operation explanatory diagram of a multi-passage system.

FIG. 8 is a block diagram applied to a compressor as an aftercooler.

FIG. 9 is a block diagram applied to a compressor as an intercooler.

FIG. 10 is another block diagram applied to a compressor as an intercooler.

FIG. 11 is a diagram showing an embodiment of a reciprocating compressor.

[Explanation of symbols]

 1 Compressor 17 Flange 18 Packing 19 Heat Exchanger Main Body 20 Inlet Pipe 21 Discharge Pipe 22 Bolt 23 Nut 25 Flange 26 Heat Exchanger 27 Air Pressure Filter 28 Air Tank 35, 36 Compressor

Claims (6)

[Claims] 1. A heat exchanger in a compressor used as an intercooler or an aftercooler of a compressor, wherein a passage surrounded by a bone wall is provided inside for passing a fluid through the bone wall. The main body for exchanging heat with the fluid in the passage and the external fluid, the introduction passage for the fluid from the compressor, the introduction flange surrounded by the bone wall, and the discharge passage for the fluid. A discharge flange surrounded by a bone wall, and a fixing means for fixing the three members by interposing the main body between the introduction flange and the discharge flange, and integrally fixing the introduction flange and the discharge flange. A heat exchanger in a compressor, characterized in that a flange or the main body can be selected. 2. The heat exchanger in a compressor according to claim 1, wherein the introduction flange and the discharge flange are used as the same member. 3. A passage for circulating a fluid, which is surrounded by a bone wall and has a plurality of passages provided in parallel with each other and separated from each other by a space, and the passage is provided through the bone wall. A main body that exchanges heat with the internal fluid and the external fluid, an introduction passage that is surrounded by a bone wall in order to circulate the fluid, penetrates the upper surface and the lower surface, and has an open end on the lower surface. An introduction flange provided with a direction changing passage for changing the flow direction of the fluid corresponding to two adjacent passages, and a discharge for penetrating the upper surface and the lower surface, which is surrounded by a bone wall for circulating the fluid. A discharge flange provided with a passage and a direction change passage having an opening end on an upper surface and corresponding to two adjacent passages of the plurality of passages, the introduction flange and the introduction flange; By interposing the main body between the discharge flanges, It is configured such that the three members are fastened to be integrated and fluid from the introduction passage of the introduction flange is discharged from the discharge passage of the discharge flange through all of the plurality of passages of the main body. The heat exchanger in the compressor according to claim 1, wherein the heat exchanger is a heat exchanger. 4. The heat exchanger according to claim 3, wherein the number of the direction changing passages is an integer of 1 or more, and the number of the passages of the main body is an odd number of 3 or more. 5. A passage, which is surrounded by a bone wall and has a plurality of passages provided in parallel and spaced from each other by a space, is provided inside the passage for passing a fluid, and the passage is provided through the bone wall. A main body that exchanges heat with the internal fluid and the external fluid, and in order to circulate the fluid, it is surrounded by a bone wall and has an open end at the bottom, and all of the plurality of parallel passages of the main body A corresponding flow passage for the fluid and an introduction flange provided with an introduction passage for introducing the fluid from the upper surface opening into the flow passage, and in order to circulate the fluid, the periphery is surrounded by a bone wall, and an opening end is provided above. And a discharge flange provided with a fluid flow passage corresponding to all of the plurality of passages provided in parallel to the main body, and a discharge passage for discharging fluid from the upper surface opening to the flow passage, the introduction flange Between the discharge flange and The main body is interposed and these three members are fixedly fastened to be integrated, and the fluid from the introduction passage of the introduction flange is branched into the plurality of passages of the main body and discharged from the discharge passage of the discharge flange. The heat exchanger in the compressor according to claim 1, wherein the heat exchanger is configured as described above. 6. The heat exchanger in a compressor according to claim 5, wherein the introduction flange and the discharge flange are used as the same member.