Interstage bypass system for a high-pressure piston compressor

Abstract

The utility model discloses an interstage bypass system of high pressure piston compressor relates to high pressure piston compressor equipment technical field, including base system: the top of base system is equipped with host computer motor system, the utility model's beneficial effect: the utility model is provided with base system and cooler system, and spiral radiating fin is used for increasing the heat dissipation area, even effectively reduces the gas temperature before entering the manifold, and the both ends of spiral radiating fin are pressed through the grommet, or spot welding fixed, and the whole bypass system production and installation are made to the simple convenience of as far as possible, one end of two -stage cooling pipeline is connected with the section bar support, and the bottom of two pipe clamps is connected with the section bar support, the shutdown problem caused due to gas overtemperature, will not increase low pressure stage compression temperature, avoids equipment operating life to reduce, and the increase of spare parts cost etc., will not increase the design size of cooling system, increases cooling load, will not reduce the processing capacity of equipment itself, avoids the waste of gas volume.

Description

Technical Field

[0001] This utility model relates to the technical field of high-pressure piston compressor equipment, specifically to an interstage bypass system for a high-pressure piston compressor. Background Technology

[0002] Currently, the interstage design used in high-pressure reciprocating compressors involves cooling the high-temperature gas from the previous stage through a cooler before compressing it in the next stage. This often results in excessively high gas temperatures during the final compression stage, causing the system to alarm and shut down, especially in areas with already high ambient temperatures. The effect may not be as noticeable at low-pressure stages, but it becomes particularly pronounced at high-pressure stages.

[0003] There are also some solutions to this problem: For example, the exhaust gas from the stage before the final stage of compression can be piped to the intake pipe. This would balance the overheating problem during the high-pressure compression of the final stage, but it would also increase the intake temperature. Although this would keep the temperature below the normal operating temperature of the system, long-term operation would increase the damage to the low-pressure stage components and matching filters of the compressor, reducing their service life.

[0004] Some structural designs involve leading a pipeline from the high-pressure stage to the sewage pipeline, and adjusting the temperature of the high-pressure compression through the connecting flange. However, this method consumes the compressed air volume of the entire system, reducing the system's operating efficiency.

[0005] Some designs also involve leading a line to the cooler for supplemental cooling, reducing the temperature of the compressed intake air at the highest pressure at the end. While this can effectively solve the problem of intake air overheating, it will lead to an increase in the size of the cooler system, the addition of new interface pipes, and other problems such as complicated piping.

[0006] Therefore, all of the above solutions have problems to varying degrees, resulting in numerous issues during operation and failing to meet normal usage requirements. Thus, this utility model requires the design of an interstage bypass system for a high-pressure piston compressor to solve the aforementioned problems. Utility Model Content

[0007] The purpose of this invention is to provide an interstage bypass system for a high-pressure piston compressor to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an interstage bypass system for a high-pressure piston compressor, comprising a base system: The main motor system is installed on the top of the base system. A cooler system is installed on the top of the base system and on one side of the main motor system. An interstage bypass system is installed inside the cooler system and on the top of the base system. The interstage bypass system is located on one side of the main motor system. The interstage bypass system includes a first interstage bypass. A fixed frame is fixedly connected to the top of the base system and the bottom of the cooler system. The first interstage bypass is located inside the fixed frame. A second interstage bypass is installed on one side of the first interstage bypass. Equally spaced spiral heat dissipation fins are fixedly connected to the outer sides of both the first and second interstage bypasses. A secondary exhaust manifold is installed on one side of the first-stage bypass. A straight connector is installed at one end of both the first-stage and second-stage bypasses. A stainless steel ferrule is fitted on the outside of the straight connector. The other end of the stainless steel ferrule is connected to the secondary exhaust manifold. A bend connector is installed between the stainless steel ferrule and the secondary exhaust manifold. The stainless steel ferrule is divided into two sections and connected by the bend connector. A secondary cooling pipe is installed on one side of the secondary exhaust manifold. Two pipe clamps are installed on the outer side of one end of the other stainless steel ferrule. One end of the other stainless steel ferrule passes through one of the pipe clamps and is fitted with a threaded connector. One end of each of the two threaded connectors is connected to the secondary cooling pipeline. Finally, the pipe clamps are used to fix the pipe to the profile support of the cooler system. Specifically, the pipe clamp base plate is welded to the support, the stainless steel ferrule is pressed tightly, and finally the upper cover plate and bolts of the pipe clamps are tightened to complete the installation. Since each stage of compression in this piston host is divided into two paths, the design of the interstage bypass system is also divided into two paths, namely the first-stage bypass and the second-stage bypass. However, the principle is the same. By adding an interstage pipeline before the final stage compression, the shutdown problem caused by gas overheating during the operation of the entire equipment is effectively solved. It will not increase the low-pressure stage compression temperature, avoid reducing the service life of the equipment, increase the cost of spare parts, etc., will not increase the design size of the cooling system, increase the cooling load, will not reduce the processing capacity of the equipment itself, and avoid the waste of gas.

[0009] In a preferred embodiment of this utility model, a profile bracket is fixedly connected to the outside of the fixed frame, and hose clamps are installed at both ends of the spiral heat dissipation fins. The spiral heat dissipation fins are used to increase the heat dissipation area and even effectively reduce the gas temperature before entering the manifold. The two ends of the spiral heat dissipation fins are pressed together by hose clamps or fixed by spot welding. The entire bypass system is manufactured and installed in a way that is as simple and convenient as possible.

[0010] In a preferred embodiment of this utility model, one end of the secondary cooling pipe is connected to the profile support, the bottom of both pipe clamps is connected to the profile support, and the top of each pipe clamp is equipped with a top cover plate, and the top of each top cover plate is threaded with symmetrically distributed bolts.

[0011] In a preferred embodiment of this utility model, another pipe clamp has a conveying pipe installed inside. One end of the conveying pipe is connected to a threaded joint, and the other end of the conveying pipe is connected to a secondary exhaust manifold.

[0012] In a preferred embodiment of this utility model, the base system is a skid-mounted base for the entire equipment, and the cooler system is used to cool the compressed gas and lubricating oil at each stage. Not all pipelines are shown in this utility model application. The interstage bypass system is the main improvement point of this utility model application.

[0013] In a preferred embodiment of this utility model, the main motor system includes a piston compressor main unit, a coupling, a coupling cover, and a main motor. The coupling cover is installed on the top of the base system and on one side of the interstage bypass system. The coupling is installed inside the coupling cover. The main motor is installed on one side of the coupling cover. The output end of the main motor is connected to the coupling. The piston compressor main unit has a cylinder inside. The output end of the cylinder is connected to a straight connector.

[0014] In a preferred embodiment of this utility model, the bottom of the main motor is provided with a motor mounting bracket, and the motor mounting bracket has set screws that are evenly distributed and extend into the base system. The main motor system and the base system are connected by the set screws and the motor mounting bracket.

[0015] In a preferred embodiment of this utility model, the top of the secondary exhaust manifold is fixedly connected to two connecting flanges. The connecting flanges are used to connect to the matching flanges of the exhaust of the main motor system. After merging into the secondary exhaust manifold, they enter the cooler system through the secondary cooling pipeline.

[0016] In a preferred embodiment of this utility model, a control panel is provided on the outside of the main motor system. The base system, the main motor system, and the cooler system are all electrically connected to the control panel. The control panel is used to control the operation of the base system, the main motor system, and the cooler system, thereby realizing unified management of the power equipment.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model includes a base system, a main motor system, and a cooler system. The base system is a skid-mounted base for the entire equipment. The cooler system is used to cool the compressed gas and lubricating oil after each stage. While not all piping is shown in this utility model application, the interstage bypass system is the main improvement of this utility model. The motor mounting bracket has internally threaded set screws that are evenly distributed and extend into the base system. These set screws and the motor mounting bracket connect the main motor system and the base system. Spiral heat dissipation fins are used to increase the heat dissipation area and even effectively reduce the gas temperature before entering the manifold. The ends of the spiral heat dissipation fins are clamped together by hose clamps. Alternatively, it can be fixed by spot welding. The entire bypass system is manufactured and installed as simply and conveniently as possible. One end of the secondary cooling pipe is connected to the profile bracket, and the bottom of both pipe clamps is connected to the profile bracket. The top of each pipe clamp is equipped with a top cover plate, and the top of each top cover plate is threaded with symmetrically distributed bolts. This patent aims to provide an interstage bypass system for a high-pressure piston compressor. By using the interstage bypass system before the final stage high-pressure compressor, the high-temperature alarm shutdown problem during the operation of the entire equipment is regulated. At the same time, this bypass system does not require adjustment of the dimensions of other systems, does not reduce the system operating efficiency, and does not reduce the service life of the equipment. Compared with the prior art, the technical solution of this utility model effectively solves the problem of shutdown caused by gas overheating during the operation of the entire equipment by adding an interstage pipeline before the final stage compression. It does not increase the low-pressure stage compression temperature, avoids reduced equipment lifespan and increased spare parts costs, does not increase the design size of the cooling system, increases the cooling load, does not reduce the processing capacity of the equipment itself, and avoids waste of gas volume. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an interstage bypass system for a high-pressure piston compressor according to the present invention. Figure 2 This is a schematic diagram of the connection structure between the main motor system and the interstage bypass system of a high-pressure piston compressor according to the present invention. Figure 3 This is an enlarged schematic diagram of the interstage bypass system structure of a high-pressure piston compressor according to the present invention.

[0019] In the picture: 1. Base system; 11. First-stage bypass; 12. Second-stage bypass; 2. Main motor system; 3. Cooler system; 31. Secondary cooling piping; 4. Interstage bypass system; 41. Straight-through connector; 42. Stainless steel compression fitting; 43. Hose clamp; 44. Spiral heat dissipation fins; 45. Bend connector; 46. Threaded connector; 47. Pipe clamp; 48. Secondary exhaust manifold; 49. Connecting flange. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 This utility model provides a technical solution: an interstage bypass system for a high-pressure piston compressor, including a base system 1, a main motor system 2 installed on the top of the base system 1, a cooler system 3 installed on the top of the base system 1 and on one side of the main motor system 2, and an interstage bypass system 4 installed inside the cooler system 3 and on the top of the base system 1, with the interstage bypass system 4 located on one side of the main motor system 2. In this solution, the intermediate bypass system 4 includes a first-stage bypass 11. A fixed frame is fixedly connected to the top of the base system 1 and the bottom of the cooler system 3. The first-stage bypass 11 is located inside the fixed frame. A second-stage bypass 12 is installed on one side of the first-stage bypass 11. Equally spaced spiral heat dissipation fins 44 are fixedly connected to the outer sides of both the first-stage bypass 11 and the second-stage bypass 12. In this scheme, a secondary exhaust manifold 48 is installed on one side of the first-stage bypass 11. A straight connector 41 is installed at one end of both the first-stage bypass 11 and the second-stage bypass 12. A stainless steel sleeve 42 is fitted on the outside of the straight connector 41. The other end of the stainless steel sleeve 42 is connected to the secondary exhaust manifold 48. A bend connector 45 is installed between the stainless steel sleeve 42 and the secondary exhaust manifold 48. The stainless steel sleeve 42 is divided into two sections and connected by the bend connector 45. A secondary cooling pipe 31 is installed on one side of the secondary exhaust manifold 48. In this scheme, two pipe clamps 47 are installed on the outer side of one end of another stainless steel ferrule tube 42. One end of another stainless steel ferrule tube 42 passes through one of the pipe clamps 47 and is equipped with a threaded connector 46. One end of both threaded connectors 46 is connected to the secondary cooling pipe 31. In actual use, the straight connector 41 is connected to the cylinder before the fourth stage compression of the piston main unit. The stainless steel ferrule 42 is connected to the straight connector 41. The entire stainless steel ferrule 42 is divided into two sections, which are connected by elbow connectors 45. Other bends are achieved by bending the pipe with a bending machine. Finally, it is connected to the cooling pipes 31 of the first and second stages through threaded connectors 46. In this way, if the temperature of the gas entering the final stage of the fourth stage compression is too high, it can enter the manifold after the second stage compression, i.e., the second stage cooling pipe 31, through this bypass system, and then enter the cooler. At the same time, spiral heat dissipation fins 44 are installed on the stainless steel ferrule 42 to increase the heat dissipation area and even effectively reduce the temperature of the gas before entering the manifold. The two ends of the spiral heat dissipation fins 44 are pressed together by hose clamps 43 or fixed by spot welding. The entire bypass system is manufactured and installed as simply and conveniently as possible. Finally, the pipe clamp 47 is fixed to the profile bracket of the cooler system 3. The specific operation is to weld the bottom plate of the pipe clamp 47 to the bracket, then press the stainless steel ferrule tube 42, and finally tighten it with the top cover plate and bolts of the pipe clamp 47 to complete the installation. Since each stage of compression in this piston compressor is divided into two paths, the design of the interstage bypass system is also divided into two paths, namely the first-stage interstage bypass 11 and the second-stage interstage bypass 12, but the principle is the same.

[0022] Please see Figures 1-3 In this solution, the outer side of the fixed frame is fixedly connected with a profile bracket, and both ends of the spiral heat dissipation fins 44 are equipped with hose clamps 43. The spiral heat dissipation fins 44 are used to increase the heat dissipation area and even effectively reduce the gas temperature before entering the manifold. The two ends of the spiral heat dissipation fins 44 are pressed together by hose clamps 43 or fixed by spot welding. The entire bypass system is manufactured and installed in a way that is as simple and convenient as possible.

[0023] In this scheme, one end of the secondary cooling pipe 31 is connected to the profile bracket, the bottom of the two pipe clamps 47 are connected to the profile bracket, and the top of the pipe clamps 47 is equipped with a top cover plate, and the top of the top cover plate is threaded with symmetrically distributed bolts.

[0024] In this scheme, another pipe clamp 47 has a conveying pipe installed inside. One end of the conveying pipe is connected to the threaded joint 46, and the other end of the conveying pipe is connected to the secondary exhaust manifold 48.

[0025] Please see Figures 1-3 In this solution, the base system 1 is the skid-mounted base of the entire equipment, and the cooler system 3 is used to cool the compressed gas and lubricating oil at each stage. Not all pipelines are shown in this utility model application. The interstage bypass system 4 is the main improvement point of this utility model application.

[0026] In this scheme, the main motor system 2 includes a piston compressor main unit, a coupling, a coupling housing, and a main motor. The coupling housing is installed on the top of the base system 1 and on one side of the interstage bypass system 4. The coupling housing contains a coupling, and the main motor is installed on one side of the coupling housing. The output end of the main motor is connected to the coupling. The piston compressor main unit contains a cylinder, and the output end of the cylinder is connected to the straight connector 41.

[0027] In this design, the bottom of the main motor is provided with a motor mounting bracket. The internal thread of the motor mounting bracket is connected with set screws that are evenly distributed and extend into the base system 1. The main motor system 2 and the base system 1 are connected by the set screws and the motor mounting bracket.

[0028] Please see Figures 1-3 In this scheme, the top of the secondary exhaust manifold 48 is fixedly connected to two connecting flanges 49. The connecting flanges 49 are used to connect to the matching flange of the exhaust of the main motor system 2. After merging into the secondary exhaust manifold 48, they enter the cooler system 3 through the secondary cooling pipe 31.

[0029] In this solution, a control panel is provided on the outside of the main motor system 2. The base system 1, the main motor system 2, and the cooler system 3 are all electrically connected to the control panel. The control panel is used to control the operation of the base system 1, the main motor system 2, and the cooler system 3, realizing unified management of electrical equipment. The above four systems are uniformly accessed and controlled through the control panel, which facilitates the addition of other electrical equipment to each system.

[0030] Please see Figures 1-3 The secondary cooling pipe 31, the secondary exhaust manifold 48, and the connecting flange 49 constitute the entire secondary exhaust to cooler mechanism. The secondary exhaust to cooler mechanism is divided into three sections by the above three devices. A protective sleeve is installed on the outside of each pair of devices at the connection point. The protective sleeve is used to reduce the collision between the secondary cooling pipe 31 and other devices.

[0031] Please see Figures 1-3 The working principle of this utility model is as follows: This utility model comprises a base system 1, a main motor system 2, and a cooler system 3. During operation, these four systems—base system 1, main motor system 2, cooler system 3, and interstage bypass system—are uniformly connected and controlled via a control panel. This facilitates the addition of other electrical equipment to each system. Base system 1 is a skid-mounted base for the entire system. Cooler system 3 is used for cooling the compressed gas and lubricating oil after each stage. While not all pipelines are shown in this utility model application, the interstage bypass system 4 is the main improvement of this utility model application. A connecting flange 49 connects to the mating flange of the exhaust gas from main motor system 2, then merges into the secondary exhaust manifold 48, and finally enters cooler system 3 through secondary cooling pipeline 31. The control panel controls the operation of base system 1, main motor system 2, and cooler system 3, achieving unified management of the electrical equipment. The internal threaded connections of the motor mounting bracket are evenly distributed and extend to... The set screws inside the base system 1 connect the main motor system 2 and the base system 1 via the set screws and the motor mounting bracket. The secondary cooling pipe 31, the secondary exhaust manifold 48, and the connecting flange 49 constitute the entire secondary exhaust to cooler mechanism. The secondary exhaust to cooler mechanism is divided into three sections by the above three devices. A protective sleeve is installed on the outside of each pair of devices. The protective sleeve is used to reduce the collision between the secondary cooling pipe 31 and other devices. The spiral heat dissipation fins 44 are used to increase the heat dissipation area and even effectively reduce the gas temperature before entering the manifold. The two ends of the spiral heat dissipation fins 44 are pressed by hose clamps 43 or fixed by spot welding. The entire bypass system is manufactured and installed as simply and conveniently as possible. One end of the secondary cooling pipe 31 is connected to the profile bracket. The bottom of the two pipe clamps 47 is connected to the profile bracket. The top of the pipe clamps 47 is equipped with a top cover plate. The top of the top cover plate is threaded with symmetrically distributed bolts.

[0032] In actual use, the straight connector 41 is connected to the cylinder before the fourth stage compression of the piston main unit. The stainless steel ferrule 42 is connected to the straight connector 41. The entire stainless steel ferrule 42 is divided into two sections, which are connected by elbow connectors 45. Other bends are achieved by bending the pipe with a bending machine. Finally, it is connected to the cooling pipes 31 of the first and second stages through threaded connectors 46. In this way, if the temperature of the gas entering the final stage of the fourth stage compression is too high, it can enter the manifold after the second stage compression, i.e., the second stage cooling pipe 31, through this bypass system, and then enter the cooler. At the same time, spiral heat dissipation fins 44 are installed on the stainless steel ferrule 42 to increase the heat dissipation area and even effectively reduce the temperature of the gas before entering the manifold. The two ends of the spiral heat dissipation fins 44 are pressed together by hose clamps 43 or fixed by spot welding. The entire bypass system is manufactured and installed as simply and conveniently as possible. Finally, the pipe clamp 47 is fixed to the profile bracket of the cooler system 3. The specific operation is to weld the bottom plate of the pipe clamp 47 to the bracket, then press the stainless steel ferrule tube 42, and finally tighten it with the top cover plate and bolts of the pipe clamp 47 to complete the installation. Since each stage of compression in this piston compressor is divided into two paths, the design of the interstage bypass system is also divided into two paths, namely the first-stage interstage bypass 11 and the second-stage interstage bypass 12, but the principle is the same.

[0033] This patent aims to provide an interstage bypass system for a high-pressure piston compressor. By using an interstage bypass system in the stage before the final high-pressure compressor, the system addresses the issue of high-temperature alarm shutdown during the entire equipment operation. Furthermore, this bypass system does not require adjustments to the dimensions of other systems, does not reduce system operating efficiency, and does not shorten the service life of the equipment. The technical solution of this utility model, compared with the prior art, effectively solves the problem of shutdown caused by gas overheating during the operation of the entire equipment by adding an interstage pipeline before the final stage compression. Compared with the prior art, the technical solution of this utility model does not increase the compression temperature of the low-pressure stage, thus avoiding a reduction in equipment lifespan and an increase in spare parts costs. Compared with the prior art, the technical solution of this utility model does not increase the design size of the cooling system or increase the cooling load; Compared with the prior art, the technical solution of this utility model does not reduce the processing capacity of the equipment itself and avoids the waste of gas.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interstage bypass system for a high-pressure piston compressor, comprising a base system (1), characterized in that: The base system (1) is equipped with a main motor system (2) on top, and a cooler system (3) is installed on the top of the base system (1) and on one side of the main motor system (2). An interstage bypass system (4) is installed inside the cooler system (3) and on the top of the base system (1). The inter-level bypass system (4) includes a first inter-level bypass (11), and a second inter-level bypass (12) is installed on one side of the first inter-level bypass (11). A secondary exhaust manifold (48) is installed on one side of the first-stage bypass (11). A straight connector (41) is installed at one end of both the first-stage bypass (11) and the second-stage bypass (12). A stainless steel sleeve (42) is fitted on the outside of the straight connector (41). The other end of the stainless steel sleeve (42) is connected to the secondary exhaust manifold (48). A secondary cooling pipe (31) is installed on one side of the secondary exhaust manifold (48). Two pipe clamps (47) are installed on the outer side of one end of another stainless steel ferrule (42). One end of the other stainless steel ferrule (42) passes through one of the pipe clamps (47) and is equipped with a threaded connector (46). One end of the threaded connector (46) is connected to the secondary cooling pipeline (31).

2. The inter-stage bypass system of a high-pressure piston compressor according to claim 1, characterized in that A fixed frame is fixedly connected to the top of the base system (1) and the bottom of the cooler system (3). A profile bracket is fixedly connected to the outside of the fixed frame. Spiral heat dissipation fins (44) with equal spacing are fixedly connected to the outside of the first interstage bypass (11) and the second interstage bypass (12). Both ends of the spiral heat dissipation fins (44) are equipped with hose clamps (43). The spiral heat dissipation fins (44) are used to increase the heat dissipation area.

3. The inter-stage bypass system of a high-pressure piston compressor according to claim 2, characterized in that: One end of the secondary cooling pipe (31) is connected to the profile bracket, the bottom of the two pipe clamps (47) is connected to the profile bracket, and the top of the pipe clamps (47) is equipped with an upper cover plate, and the top of the upper cover plate is threaded with symmetrically distributed bolts.

4. The inter-stage bypass system of a high-pressure piston compressor according to claim 2, characterized in that: A bend joint (45) is installed between the stainless steel ferrule tube (42) and the secondary exhaust manifold (48). A conveying pipe is installed inside another pipe clamp (47). One end of the conveying pipe is connected to a threaded joint (46), and the other end of the conveying pipe is connected to the secondary exhaust manifold (48).

5. The inter-stage bypass system of a high-pressure piston compressor according to claim 1, characterized in that: The base system (1) is the skid-mounted base of the entire equipment, and the cooler system (3) is used for cooling the compressed gas and lubricating oil at each stage.

6. The inter-stage bypass system of a high-pressure piston compressor according to claim 2, characterized in that: The main motor system (2) includes a piston compressor main unit, a coupling, a coupling cover and a main motor. The coupling cover is installed on the top of the base system (1) and on one side of the interstage bypass system (4). The coupling cover is equipped with a coupling inside. The main motor is installed on one side of the coupling cover. The output end of the main motor is connected to the coupling. A cylinder is installed on the outside of the piston compressor main unit. The output end of the cylinder is connected to the straight connector (41).

7. The inter-stage bypass system of a high-pressure piston compressor according to claim 6, characterized in that The main motor is provided with a motor mounting bracket at its bottom, and the motor mounting bracket has set screws that are evenly distributed and extend into the base system (1) through its internal threaded connection.

8. The inter-stage bypass system of a high-pressure piston compressor according to claim 5, characterized in that: The top of the secondary exhaust manifold (48) is fixedly connected to two connecting flanges (49), which are used to connect to the matching flange of the exhaust of the main motor system (2).

9. The inter-stage bypass system of a high-pressure piston compressor according to claim 8, characterized in that: The secondary cooling pipe (31), the secondary exhaust manifold (48) and the connecting flange (49) constitute the entire secondary exhaust to cooler mechanism. The secondary exhaust to cooler mechanism is divided into three sections, and a protective sleeve is installed on the outside of each two sections. The protective sleeve is used to reduce the collision between the secondary cooling pipe (31) and other equipment.

10. The inter-stage bypass system of a high-pressure piston compressor according to claim 8, characterized in that: The main motor system (2) is equipped with a control panel on its outside. The base system (1), the main motor system (2) and the cooler system (3) are all electrically connected to the control panel. The control panel is used to control the operation of the base system (1), the main motor system (2) and the cooler system (3), thereby realizing the unified management of the power equipment.

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