Heat exchange and pressure reduction device for gas
By designing an automatic pressure relief system and a threshold adjustment structure, the automation and stability issues of the gas heat exchange pressure reducing device were solved, achieving a safe and reliable gas pressure reducing function, adapting to multiple operating conditions, and improving the safety and operating efficiency of the equipment.
Patent Information
- Application Number
- CN202520628256.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing gas heat exchange pressure reducing devices lack automatic pressure relief function, have inflexible pressure relief threshold adjustment, and poor adjustment structure stability, resulting in low equipment safety and low operating efficiency.
An automatic pressure relief system was designed, comprising a pressure relief pipe, a fixed pipe, an adjustment frame, an adjustment spring, a fixed frame, and a pressure relief plate. Combined with a threshold adjustment system consisting of a rotating sleeve, an inner sleeve, an outer sleeve, a guide rail, and a guide groove, as well as a locking mechanism, it achieves automatic pressure relief, precise threshold adjustment, and structural stability.
It achieves automated pressure relief, precise threshold adjustment, and structural stability, improving equipment safety and operating efficiency, adapting to various working conditions, and reducing manual intervention and equipment failure.
Smart Images
Figure CN223794730U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas heat exchange and pressure reduction technology, and more specifically, it relates to a gas heat exchange and pressure reduction device. Background Technology
[0002] In the field of gas heat exchanger pressure reducing devices, the reliability of the automatic pressure relief function and the precise control of the pressure relief threshold directly affect the safety of equipment operation and the efficiency of system operation. However, the gas heat exchanger pressure reducing devices currently on the market still have many technical defects in practical applications. These problems not only affect the automation level of the equipment, but may also lead to safety hazards and operational failures.
[0003] The primary problem is the lack of an automatic pressure relief function. Existing gas heat exchange pressure reducing devices have significant defects: First, they require real-time monitoring of the internal pressure of the equipment; second, the pressure relief operation requires manual operation; third, the sealing process after pressure relief also depends on manual operation; in addition, this design deficiency not only increases labor costs, but may also lead to pressure runaway due to human negligence, affecting equipment safety and increasing operational risks and management difficulties.
[0004] More notably, the pressure relief threshold adjustment is inflexible. Although some equipment has achieved automatic pressure relief, it has serious problems: First, the pressure relief threshold cannot be adjusted according to the working conditions; second, the applicable range of the device is limited; third, it cannot meet the pressure relief requirements of different gas media; in addition, the system has poor adaptability and is difficult to match diverse working environments; finally, this design deficiency not only limits the application range of the equipment, but may also lead to untimely or excessive pressure relief due to the fixed threshold, affecting production efficiency and energy utilization.
[0005] The most critical issue is the poor stability of the regulating structure. Although some equipment achieves flexible control of the pressure relief threshold through the regulating mechanism, there are serious problems: First, the regulating structure is simply designed and lacks reliability, and equipment vibration can easily cause the regulating structure to loosen. Second, airflow impact can easily cause the regulating components to shift, leading to deviations in regulating accuracy after long-term operation. This design deficiency not only affects the accuracy of pressure relief but may also lead to untimely or premature pressure relief due to structural failure. This structural defect not only reduces the service life of the equipment but may also cause system failure due to poor stability, affecting production safety and operational efficiency. Utility Model Content
[0006] (a) Technical problems to be solved
[0007] In view of the problems existing in the prior art, the present invention provides a gas heat exchange and pressure reduction device to solve the technical problems mentioned in the background art.
[0008] (II) Technical Solution
[0009] To achieve the above objectives, this utility model provides the following technical solution: a gas heat exchange and pressure reduction device, comprising a heat exchanger, with a pressure reduction device connected above the heat exchanger. The pressure reduction device includes a pressure relief pipe, a fixed pipe, a regulating frame, a regulating spring, a fixed frame, and a pressure relief plate. The pressure relief pipe is disposed above the fixed pipe, which is fixedly installed on the heat exchanger. The two ends of the regulating spring are respectively connected to the regulating frame and the pressure relief plate. The pressure relief plate is movably disposed inside the fixed pipe. The fixed frame is fixedly installed inside the fixed pipe. A regulating device is disposed on one side of the pressure relief pipe. The regulating device includes a rotating sleeve, an inner sleeve, an outer sleeve, a guide rail, and a guide groove. The two ends of the rotating sleeve are rotatably connected to the pressure relief pipe and the fixed pipe, respectively. The inner sleeve is fixedly connected to one side of the regulating frame, and the outer sleeve is fixedly connected to... Inside the rotating sleeve, the inner wall of the outer sleeve and the outer wall of the inner sleeve are movably connected by threads. The guide rail is fixedly installed inside the fixed tube. The guide groove is opened on the outside of the pressure relief plate and the control frame, and the guide groove is adapted to the guide rail. A locking mechanism is provided on the outside of the fixed tube. The locking mechanism includes a locking sleeve, a limiting spring, an adapter block, a control groove, a limiting wheel, a limiting block, and a control block. The locking sleeve is movably connected to the outer wall of the fixed tube by threads. The two ends of the limiting spring are connected to two adjacent limiting blocks. Multiple adapter blocks are fixedly installed on the outside of the fixed tube. The control groove is opened on one side of the limiting block. The limiting wheel is rotatably installed on one side of the limiting block. Multiple limiting blocks are set on one side of the rotating sleeve. Multiple control blocks are fixedly installed on one side of the rotating sleeve. The control groove is adapted to the control block.
[0010] The present invention is further configured such that an input pipe is connected to one end of the heat exchanger and an output pipe is connected to the other end of the heat exchanger.
[0011] The present invention is further provided that multiple support frames are detachably provided below the heat exchanger.
[0012] The present invention is further configured such that a plurality of sealing rings are fixedly provided on one side of the pressure relief plate, and a plurality of sealing grooves are correspondingly provided on one side of the fixing frame, and the sealing rings are inserted into the sealing grooves to ensure sealing performance and ensure the cut-off of gas.
[0013] The present invention is further configured such that both the control groove and the control block are T-shaped structures, which ensures the precise displacement of the limit block.
[0014] The present invention is further configured such that the adapter block has a cylindrical structure design to ensure smooth operation.
[0015] The present invention is further configured such that a connecting rod is fixedly provided inside the pressure relief pipe, and an intermediate rod is fixedly connected to one end of the connecting rod, and the pressure relief plate and the regulating frame are slidably connected to the intermediate rod respectively.
[0016] The present invention is further provided with multiple anti-slip strips on the outer sides of both the locking sleeve and the rotating sleeve.
[0017] (III) Beneficial Effects
[0018] Compared with the prior art, this utility model provides a gas heat exchange and pressure reduction device, which has the following beneficial effects:
[0019] 1. The pressure reducing device constructs a complete automatic pressure reducing system through the precise cooperation of the pressure relief pipe, fixed pipe, regulating frame, regulating spring, fixed frame, and pressure relief plate. The cooperation between the pressure relief plate and the fixed frame achieves sealing control, and the setting of the regulating spring ensures automatic reset. This structure not only achieves automatic pressure relief through mechanical linkage, but also provides reliable sealing through the cooperation between the sealing ring and the sealing groove. It effectively solves the problem of traditional devices requiring manual monitoring and operation, improves the level of automation, and achieves safe pressure relief.
[0020] 2. The control device forms a flexible threshold adjustment system through the coordinated work of the rotating sleeve, inner sleeve, outer sleeve, guide rail, and guide groove. The rotational connection between the rotating sleeve and the fixed tube provides the basis for adjustment, the threaded fit between the inner sleeve and the outer sleeve achieves precise control, and the setting of the guide rail and guide groove ensures motion guidance. This structure not only achieves precise adjustment of the threshold through threaded transmission, but also provides stable support through the connecting rod and intermediate rod, and ensures convenient operation through sliding connection. It effectively solves the problems of fixed pressure relief threshold and poor adaptability of traditional devices, improves adjustment efficiency, and achieves multi-condition adaptation.
[0021] 3. The locking mechanism, through the precise cooperation of the locking sleeve, limit spring, adapter block, control groove, limit wheel, limit block and control block, constructs a reliable locking system. The threaded design of the locking sleeve provides the locking basis, the cooperation between the limit wheel and the adapter block realizes the position positioning, and the setting of the limit spring ensures automatic reset. This structure not only achieves the stable fixation of the adjustment structure through multiple locking, but also provides automatic reset through the elastic mechanism. It effectively solves the problem of structural loosening of traditional heat exchange pressure reducing devices under vibration and gas impact environment, adapts to harsh environment and ensures long-term stability. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of a gas heat exchange and pressure reduction device according to the present invention.
[0023] Figure 2 This is a schematic diagram of the dispersed structure of the pressure reducing device and locking mechanism in this utility model;
[0024] Figure 3 This is a cross-sectional structural diagram of the pressure reducing device and locking mechanism in this utility model;
[0025] Figure 4 This is a cross-sectional view of the fixed tube portion in this utility model.
[0026] Figure 5 This is a cross-sectional structural diagram of the rotating sleeve, regulating frame, and pressure relief plate in this utility model.
[0027] In the diagram: 1. Heat exchanger; 2. Pressure relief pipe; 3. Fixed pipe; 4. Control frame; 5. Control spring; 6. Fixed frame; 7. Pressure relief plate; 8. Rotating sleeve; 9. Inner sleeve; 10. Outer sleeve; 11. Guide rail; 12. Guide groove; 13. Locking sleeve; 14. Limiting spring; 15. Adaptor block; 16. Control groove; 17. Limiting wheel; 18. Limiting block; 19. Control block; 20. Input pipe; 21. Output pipe; 22. Support frame; 23. Sealing ring; 24. Sealing groove; 25. Connecting rod; 26. Intermediate rod; 27. Anti-slip strip. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0031] Please see Figures 1-5A gas heat exchange and pressure reduction device includes a heat exchanger 1, with a pressure reduction device connected above the heat exchanger 1. The pressure reduction device includes a pressure relief pipe 2, a fixed pipe 3, a regulating frame 4, a regulating spring 5, a fixed frame 6, and a pressure relief plate 7. The pressure relief pipe 2 is positioned above the fixed pipe 3, which is fixedly installed on the heat exchanger 1. The regulating spring 5 is connected at both ends to the regulating frame 4 and the pressure relief plate 7, respectively. The pressure relief plate 7 is movably positioned inside the fixed pipe 3. The fixed frame 6 is fixedly installed inside the fixed pipe 3. A regulating device is provided on one side of the pressure relief pipe 2. The regulating device includes a rotating sleeve 8, an inner sleeve 9, an outer sleeve 10, a guide rail 11, and a guide groove 12. The two ends of the rotating sleeve 8 are rotatably connected to the pressure relief pipe 2 and the fixed pipe 3, respectively. The inner sleeve 9 is fixedly connected to one side of the regulating frame 4, and the outer sleeve 10 is fixedly connected to the inner side of the rotating sleeve 8. The inner wall of the outer sleeve 10 is flush with the outer wall of the inner sleeve 9. The wall is connected to the fixed tube 3 by threads. The guide rail 11 is fixedly installed inside the fixed tube 3. The guide groove 12 is opened on the outside of the pressure relief plate 7 and the control frame 4, and the guide groove 12 is adapted to the guide rail 11. A locking mechanism is provided on the outside of the fixed tube 3. The locking mechanism includes a locking sleeve 13, a limit spring 14, an adapter block 15, a control groove 16, a limit wheel 17, a limit block 18, and a control block 19. The locking sleeve 13 is connected to the outer wall of the fixed tube 3 by threads. The two ends of the limit spring 14 are connected to two adjacent limit blocks 18. Multiple adapter blocks 15 are fixedly installed on the outside of the fixed tube 3. The control groove 16 is opened on one side of the limit block 18. The limit wheel 17 is rotatably installed on one side of the limit block 18. Multiple limit blocks 18 are set on one side of the rotating sleeve 8. Multiple control blocks 19 are fixedly installed on one side of the rotating sleeve 8. The control groove 16 is adapted to the control block 19.
[0032] One end of the heat exchanger 1 is connected to an inlet pipe 20, and the other end of the heat exchanger 1 is connected to an outlet pipe 21.
[0033] Multiple detachable support frames 22 are provided below the heat exchanger 1.
[0034] Multiple sealing rings 23 are fixedly provided on one side of the pressure relief plate 7, and multiple sealing grooves 24 are correspondingly provided on one side of the fixing frame 6, with the sealing rings 23 inserted into the sealing grooves 24.
[0035] In this embodiment, when the device is in use, gas is input through the input pipe 20, allowing the gas to enter the heat exchanger 1 for heat exchange. After heat exchange, the gas is output through the output pipe 21 to subsequent equipment for circulation. During the gas heat exchange process, if the pressure value exceeds a set threshold, the gas pressure will push the pressure relief plate 7 open, causing the pressure relief plate 7 to slide along the guide rail 11 and guide groove 12. Multiple sealing rings 23 on one side of the pressure relief plate 7 will be pulled out from the sealing groove 24. Simultaneously, the pressure relief plate 7 will cooperate with the control frame 4 to compress the control spring 5. Then, the gas will pass through the gap between the fixed frame 6 and the pressure relief plate 7, and the pressure relief plate 7 and the intermediate... The gap in rod 26 enters the fixed tube 3, and then is discharged through the gap on the regulating frame 4 through the outer sleeve 10 and the pressure relief pipe 2, or an external collection device is connected to the other end of the pressure relief pipe 2 for collection, thereby realizing the automatic pressure reduction and pressure relief function. When the internal air pressure of the heat exchanger 1 returns to normal, the regulating spring 5 pushes the pressure relief plate 7 to slide back to its original position, so that the pressure relief plate 7 slides back to its original position along the guide rail 11 and the guide groove 12. Then, the sealing ring 23 set on one side of the pressure relief plate 7 is fully inserted into the sealing groove 24 opened on one side of the fixed frame 6, so that the pressure relief plate 7 and the fixed frame 6 cooperate to seal the fixed tube 3, thereby achieving the cutoff of airflow.
[0036] Please see Figures 2-5 As a further implementation of the overall equipment: both the control slot 16 and the control block 19 are designed with a T-shaped structure.
[0037] The adapter block 15 is designed with a cylindrical structure.
[0038] A connecting rod 25 is fixedly installed inside the pressure relief pipe 2. One end of the connecting rod 25 is fixedly connected to an intermediate rod 26. The pressure relief plate 7 and the regulating frame 4 are slidably connected to the intermediate rod 26 respectively.
[0039] Both the locking sleeve 13 and the rotating sleeve 8 have multiple anti-slip strips 27 on their outer sides.
[0040] More specifically, when the pressure relief threshold needs to be adjusted, firstly, the locking sleeve 13 is rotated forward. The locking sleeve 13 moves along the thread provided on the outside of the fixed pipe 3. Then, the locking sleeve 13 no longer limits the outside of the limit wheel 17. Then, the rotating sleeve 8 is rotated forward. The rotating sleeve 8 drives the control block 19 provided on one side to rotate forward. Then, the control block 19 and the control groove 16 cooperate to drive the limit block 18 to rotate forward. Then, the limit block 18 drives the limit wheel 17 installed on one side to move out from between the two adapter blocks 15. Then, the limit wheel 17 drives... The limiting block 18 slides outward along the control block 19 and control groove 16. Then, the limiting block 18 drives the limiting spring 14 to stretch outward. At the same time, the rotating sleeve 8 drives the outer sleeve 10 set on the inner side to rotate. Since the inner wall of the outer sleeve 10 and the outer wall of the inner sleeve 9 are connected by threads, and the guide rail 11 and guide groove 12 cooperate to limit the control frame 4, the inner sleeve 9 and the control frame 4 will not rotate. Then, the inner sleeve 9 will drive the control frame 4 to slide along the guide rail 11 and guide groove 12, so that the control frame 4 and the pressure relief plate 7... The shortening of the distance between them compresses the regulating spring 5, thereby increasing the pressure exerted by the regulating spring 5 on the pressure relief plate 7. This requires the pressure relief plate 7 to withstand greater air pressure to open. To reduce the pressure exerted by the regulating spring 5 on the pressure relief plate 7, simply rotate the rotating sleeve 8 in the opposite direction. When the appropriate threshold is reached, stop rotating the rotating sleeve 8, causing the limit block 18 to drive the limit wheel 17 to rotate between the two corresponding adapter blocks 15. Then, the limit spring 14 resets, pulling the limit block 18 along the control block 19 and the control... The groove 16 slides inward, and then the limiting block 18 drives the limiting wheel 17 to engage between the two corresponding adapter blocks 15. Then, the locking sleeve 13 rotates in the opposite direction, so that the locking sleeve 13 rotates and resets along the outer thread of the fixed tube 3. Then, the inner wall of the locking sleeve 13 limits the outer side of the limiting wheel 17 again, so that the limiting wheel 17 and the limiting block 18 cannot slide outward, thereby achieving the locking and limiting of the rotating sleeve 8, so that the rotating sleeve 8 cannot rotate, thus ensuring the structural stability after the threshold adjustment and ensuring the stable use of the pressure reducing device.
[0041] In summary, during the use or operation of the overall equipment: When in use, gas is input through the input pipe 20, allowing it to enter the heat exchanger 1 for heat exchange. After heat exchange, the gas is output through the output pipe 21 to subsequent equipment for circulation. During the gas heat exchange process, if the pressure value exceeds the set threshold, the gas pressure pushes open the pressure relief plate 7, causing it to slide along the guide rail 11 and guide groove 12. Multiple sealing rings 23 on one side of the pressure relief plate 7 are pulled out from the sealing groove 24. Simultaneously, the pressure relief plate 7, in conjunction with the regulating frame 4, compresses the regulating spring 5. The gas then passes through the gap between the fixed frame 6 and the pressure relief plate 7. The gap between 7 and the intermediate rod 26 enters the fixed tube 3, and then is discharged through the gap on the regulating frame 4 through the outer sleeve 10 and the pressure relief pipe 2, or an external collection device is connected to the other end of the pressure relief pipe 2 for collection, thereby realizing the automatic pressure reduction and pressure relief function. When the internal air pressure of the heat exchanger 1 returns to normal, the regulating spring 5 pushes the pressure relief plate 7 to slide back to its original position, so that the pressure relief plate 7 slides back to its original position along the guide rail 11 and the guide groove 12. Then, the sealing ring 23 set on one side of the pressure relief plate 7 is fully inserted into the sealing groove 24 opened on one side of the fixed frame 6, so that the pressure relief plate 7 and the fixed frame 6 cooperate to seal the fixed tube 3, thereby achieving the cutoff of airflow.
[0042] When the pressure relief threshold needs to be adjusted, first rotate the locking sleeve 13 clockwise. The locking sleeve 13 moves along the thread on the outside of the fixed pipe 3. Then, the locking sleeve 13 no longer limits the outside of the limit wheel 17. Next, rotate the rotating sleeve 8 clockwise. The rotating sleeve 8 drives the control block 19 on one side to rotate clockwise. Then, the control block 19 and the control groove 16 cooperate to drive the limit block 18 to rotate clockwise. Then, the limit block 18 drives the limit wheel 17 installed on one side to move out from between the two adapter blocks 15. Then, the limit wheel 17 drives the limit block 18 to rotate clockwise. 8 slides outward along the control block 19 and control groove 16, then the limit block 18 drives the limit spring 14 to stretch outward. At the same time, the rotating sleeve 8 will drive the outer sleeve 10 set on the inner side to rotate. Since the inner wall of the outer sleeve 10 and the outer wall of the inner sleeve 9 are connected by threads, and the guide rail 11 and guide groove 12 cooperate to apply the limit to the control frame 4, the inner sleeve 9 and the control frame 4 will not rotate. Then the inner sleeve 9 will drive the control frame 4 to slide along the guide rail 11 and guide groove 12, so that the control frame 4 and the pressure relief plate 7 are separated. The shortening of the distance causes the regulating spring 5 to be compressed, thereby increasing the pressure exerted by the regulating spring 5 on the pressure relief plate 7. Consequently, the pressure relief plate 7 needs to withstand greater air pressure to be opened. When it is necessary to reduce the pressure exerted by the regulating spring 5 on the pressure relief plate 7, the rotating sleeve 8 can be rotated in the opposite direction. When the appropriate threshold is reached, the rotation of the rotating sleeve 8 is stopped, and the limiting block 18 drives the limiting wheel 17 to rotate between the two corresponding adapter blocks 15. Then, the limiting spring 14 resets and pulls the limiting block 18 along the control block 19 and the control groove. 16 slides inward, and then the limiting block 18 drives the limiting wheel 17 to engage between the two corresponding adapter blocks 15. Then, the locking sleeve 13 rotates in the opposite direction, so that the locking sleeve 13 rotates and resets along the outer thread of the fixed tube 3. Then, the inner wall of the locking sleeve 13 limits the outer side of the limiting wheel 17 again, so that the limiting wheel 17 and the limiting block 18 cannot slide outward, thereby achieving the locking and limiting of the rotating sleeve 8, so that the rotating sleeve 8 cannot rotate, thus ensuring the structural stability after the threshold adjustment and ensuring the stable use of the pressure reducing device.
[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.
Claims
1. A heat exchange pressure reduction device for a gas, comprising a heat exchanger (1), characterized by: The heat exchanger (1) is connected with a pressure reducing device, the pressure reducing device includes a pressure relief pipe (2), a fixed pipe (3), a control frame (4), a control spring (5), a fixed frame (6) and a pressure relief plate (7), the control spring (5) is connected with the control frame (4) and the pressure relief plate (7), the fixed frame (6) is installed in the fixed pipe (3), one side of the pressure relief pipe (2) is provided with a control device, the control device includes a rotating sleeve (8), an inner sleeve (9), an outer sleeve (10), a guide rail (11) and a guide groove (12), the rotating sleeve (8) is rotatably connected with the pressure relief pipe (2) and the fixed pipe (3), the inner wall of the outer sleeve (10) and the outer wall of the inner sleeve (9) are connected by threads, the guide rail (11) is arranged in the fixed pipe (3), the guide groove (12) is arranged on the outer side of the pressure relief plate (7) and the control frame (4), the outer side of the fixed pipe (3) is provided with a locking mechanism, the locking mechanism includes a locking sleeve (13), a limiting spring (14), an adaptive block (15), a control groove (16), a limiting wheel (17), a limiting block (18) and a control block (19), the locking sleeve (13) is connected with the fixed pipe (3) by threads, the limiting spring (14) is connected between adjacent two limiting blocks (18), a plurality of adaptive blocks (15) are installed on the outer side of the fixed pipe (3), the control groove (16) is arranged on one side of the limiting block (18), the limiting wheel (17) is installed on one side of the limiting block (18), and a plurality of control blocks (19) are installed on one side of the rotating sleeve (8).
2. The heat exchange pressure reduction device for gas according to claim 1, characterized by: One end of the heat exchanger (1) is connected with an input pipe (20), and the other end of the heat exchanger (1) is connected with an output pipe (21).
3. The heat exchange pressure reduction device for gas according to claim 2, characterized by: A plurality of supporting frames (22) are detachably arranged below the heat exchanger (1).
4. A heat exchange pressure reduction device for a gas according to any one of claims 1 to 3, characterized in that: A plurality of sealing rings (23) are fixedly arranged on one side of the pressure relief plate (7), a plurality of sealing grooves (24) are arranged on the side of the fixed frame (6) correspondingly, and the sealing rings (23) are clamped into the sealing grooves (24).
5. The heat exchange pressure reduction device for gas according to claim 1, characterized by: The control groove (16) and the control block (19) are both T-shaped in structure.
6. The heat exchange pressure reduction device for gas according to claim 5, characterized by: The adaptive block (15) is columnar in structure.
7. The heat exchange pressure reduction device for gas according to claim 1, characterized by: A connecting rod (25) is fixedly arranged in the pressure relief pipe (2), one end of the connecting rod (25) is fixedly connected with an intermediate rod (26), and the pressure relief plate (7) and the control frame (4) are slidably connected with the intermediate rod (26).
8. The heat exchange pressure reduction device for gas according to claim 7, characterized by: A plurality of anti-skid strips (27) are arranged on the outer sides of the locking sleeve (13) and the rotating sleeve (8).