High-pressure exhaust sealing valve

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By introducing a pressure limiting mechanism and a conduit structure into the high-pressure exhaust sealing valve, the problem of gas pressure discharge and high-temperature gas cooling cannot be achieved in the prior art, the pressure control and temperature cooling of high-pressure gas are realized, and the equipment is ensured. safety and normal operation.

CN222526972UActive Publication Date: 2025-02-25KUTAI RUNKE COMPRESSOR TECH (WUHAN) CO LTD

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Patent Information

Application Number: CN202420296482.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-02-18
Publication Date: 2025-02-25
Estimated Expiration: 2034-02-18

AI Technical Summary

Technical Problem

The existing high-pressure exhaust sealing valve cannot discharge the gas after reaching a certain pressure value, and cannot cool the high-temperature gas, resulting in a possible thermal load on the discharge pipeline or other equipment.

Method used

A high-pressure exhaust sealing valve is designed, adopting a pressure limiting mechanism and a conduit structure. The pressure limiting mechanism realizes pressure control of gas emissions through the cooperation of the ball valve and the tension spring; the conduit achieves cooling of high-temperature gases through the design of circulating cooling water, baffle and deflector.

Benefits of technology

The pressure control of high-pressure gas is achieved, ensuring the safety of the equipment in a high-pressure environment, and improving the safety of the system by cooling the emission pipelines and other equipment.

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Abstract

The utility model discloses a high-pressure exhaust sealing valve, which relates to the technical field of valves and comprises a shell, connecting flanges are arranged at the bottom and on one side of the shell, a hand wheel is rotatably connected to the other side of the shell, a limiting block is fixedly connected to the middle of the hand wheel, and one end of the limiting block is rotatably connected with a bolt. One end of the bolt is in meshed connection with a shell, a pressure limiting mechanism is arranged on the inner side of the shell and comprises a ball valve, a hand wheel is fixedly connected to one side of the ball valve, two check blocks are fixedly connected to the bottom of the inner side of the ball valve, a pipe sleeve is fixedly connected to the inner side of the ball valve, and a fixing ring is fixedly connected to the top of the inner wall of the pipe sleeve; by means of a pressure limiting and heat exchange structure, the effects that airflow reaching specific pressure passes through and the temperature of high-pressure gas is reduced are achieved, and the problems that a traditional sealing valve is single in function and too high in exhaust temperature are solved.

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Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a high-pressure exhaust sealing valve. Background Art

[0002] The high-pressure exhaust sealing valve is an important safety component in high-pressure equipment. It can quickly discharge excess pressure gas to prevent accidents caused by excessive pressure in the equipment, ensure that the pressure inside the equipment will not leak, and ensure the normal operation of the equipment.

[0003] The existing high-pressure exhaust sealing valve has relatively simple functions and only has basic exhaust functions. It usually has only one valve port. Its main function is to discharge high-pressure gas to avoid equipment damage or safety accidents caused by pressure overload. However, this exhaust valve cannot discharge the gas after reaching a certain pressure value. The existing high-pressure exhaust sealing valve cannot cool the discharged high-temperature gas. When the temperature of the high-pressure gas is high, the valve's discharge process will not adjust the gas temperature. The high-temperature gas may cause heat load to the exhaust pipeline or other equipment. Utility Model Content

[0004] The main purpose of the utility model is to provide a high-pressure exhaust sealing valve, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A high-pressure exhaust sealing valve comprises a shell, the bottom and one side of the shell are provided with connecting flanges, the other side of the shell is rotatably connected to a handwheel, the middle part of the handwheel is fixedly connected to a limit block, one end of the limit block is rotatably connected to a bolt, one end of the bolt is meshed and connected to the shell, a pressure limiting mechanism is provided on the inner side of the shell, the pressure limiting mechanism comprises a ball valve, one side of the ball valve is fixedly connected to a handwheel, the inner bottom of the ball valve is fixedly connected to two blocks, the inner side of the ball valve is fixedly connected to a pipe sleeve, the top of the inner wall of the pipe sleeve is fixedly connected to a fixing ring, the bottom of the fixing ring is fixedly connected to the top of a tension spring, the bottom of the tension spring is fixedly connected to a circular plate, and the outer side of the tension spring is slidably connected to the inner wall of the pipe sleeve, and the outer side of the circular plate is slidably connected to the inner wall of the pipe sleeve.

[0007] As a further solution of the utility model, one side of the shell is fixedly connected to the conduit, the middle of the conduit is fixedly connected to two baffles, and the middle of the conduit is fixedly connected to two guide plates, and the outer sides of the two guide plates are fixedly connected to the inner wall of the shell.

[0008] As a further solution of the utility model, a circular hole is opened on one side of the guide plate and penetrates to the other side, and the diameter of the circular hole is smaller than the diameter of the baffle.

[0009] As a further solution of the utility model, a circular groove is provided inside the baffle, and a circular groove is also provided inside the guide plate.

[0010] As a further solution of the utility model, a circular hole penetrating to the bottom is opened at the bottom of the pipe sleeve, and the diameter of the circular plate matches the inner diameter of the pipe sleeve.

[0011] As a further solution of the utility model, the outer diameter of the fixing ring matches the inner diameter of the pipe sleeve, and the inner diameter of the fixing ring is smaller than the diameter of the circular plate.

[0012] As a further solution of the utility model, a circular hole penetrating to the bottom is opened on the top of the ball valve, and a circular hole penetrating to the center is opened on the other side of the ball valve.

[0013] The beneficial effects of the utility model are as follows: by setting a pressure limiting mechanism, the high-pressure exhaust sealing valve can be equipped with the ability to switch different exhaust channels. The pressure limiting mechanism can also enable the exhaust valve to discharge only after the air pressure reaches a certain level, thereby achieving pressure control, ensuring the safety of the equipment in a high-pressure environment, and avoiding potential risks caused by pressure fluctuations;

[0014] By setting up the conduit, the high-temperature gas can be cooled, so that the discharged high-temperature gas can exchange heat with the cooling medium when passing through the conduit, thereby achieving the purpose of lowering the gas temperature, protecting the discharge pipeline and other equipment from high temperature damage, and improving the safety of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a high-pressure exhaust sealing valve of the utility model;

[0016] Figure 2 This is an enlarged view of a tension spring of a high-pressure exhaust sealing valve of the utility model;

[0017] Figure 3 It is a side view of a high-pressure exhaust sealing valve of the utility model;

[0018] Figure 4 The utility model is a cross-sectional view of a baffle and a guide plate of a high-pressure exhaust sealing valve.

[0019] In the figure: 1. housing; 2. connecting flange; 3. hand wheel; 4. limit block; 5. bolt; 6. pressure limiting mechanism; 7. ball valve; 8. conduit; 9. baffle; 10. guide plate; 11. block; 12. pipe sleeve; 13. fixing ring; 14. tension spring; 15. round plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] like Figure 1-4 As shown, a high-pressure exhaust sealing valve comprises a shell 1, a connecting flange 2 is provided at the bottom and one side of the shell 1, the other side of the shell 1 is rotatably connected to a handwheel 3, the middle part of the handwheel 3 is fixedly connected to a limit block 4, one end of the limit block 4 is rotatably connected to a bolt 5, one end of the bolt 5 is meshed and connected to the shell 1, a pressure limiting mechanism 6 is provided on the inner side of the shell 1, the pressure limiting mechanism 6 comprises a ball valve 7, one side of the ball valve 7 is fixedly connected to the handwheel 3, two blocks 11 are fixedly connected to the inner bottom of the ball valve 7, a pipe sleeve 12 is fixedly connected to the inner side of the ball valve 7, a fixing ring 13 is fixedly connected to the top of the inner wall of the pipe sleeve 12, the bottom of the fixing ring 13 is fixedly connected to the top of a tension spring 14, the bottom of the tension spring 14 is fixedly connected to a circular plate 15, and the outer side of the tension spring 14 is slidably connected to the inner wall of the pipe sleeve 12, and the outer side of the circular plate 15 is slidably connected to the inner wall of the pipe sleeve 12.

[0022] In this embodiment, one side of the shell 1 is fixedly connected to the conduit 8, the middle of the conduit 8 is fixedly connected to two baffles 9, and the middle of the conduit 8 is fixedly connected to two guide plates 10, and the outer sides of the two guide plates 10 are fixedly connected to the inner wall of the shell 1.

[0023] By connecting circulating cooling water in the conduit 8, heat exchange can be performed with the gas passing through the baffle 9, the guide plate 10 and the conduit 8, thereby reducing the gas temperature.

[0024] In this embodiment, a circular hole is opened on one side of the guide plate 10 and penetrates to the other side, and the diameter of the circular hole is smaller than the diameter of the baffle 9 .

[0025] After the airflow enters the sealing valve, it will be blocked and guided by the baffle 9 and the guide plate 10, which increases the formation of the heat exchange process and improves the heat exchange effect.

[0026] In this embodiment, a circular groove is formed inside the baffle plate 9 , and a circular groove is formed inside the guide plate 10 as well.

[0027] The conduit 8 passes through the interior of the baffle plate 9 and the guide plate 10, so that the baffle plate 9 and the guide plate 10 have a cooling function.

[0028] In this embodiment, a circular hole is opened at the bottom of the pipe sleeve 12 and penetrates to the bottom, and the diameter of the circular plate 15 matches the inner diameter of the pipe sleeve 12 .

[0029] The diameter of the circular plate 15 matches the inner diameter of the sleeve 12 , so that the circular plate 15 can slide inside the sleeve 12 .

[0030] In this embodiment, the outer diameter of the fixing ring 13 matches the inner diameter of the pipe sleeve 12 , and the inner diameter of the fixing ring 13 is smaller than the diameter of the circular plate 15 .

[0031] The fixing ring 13 is connected to the circular plate 15 via a tension spring 14 , and can restrict the movement range of the circular plate 15 while fixing the tension spring 14 .

[0032] In this embodiment, a circular hole is opened on the top of the ball valve 7 and penetrates to the bottom, and a circular hole is opened on the other side of the ball valve 7 and penetrates to the center.

[0033] The ball valve 7 is provided with different holes, so that the ball valve 7 has outlets with different functions, thereby increasing the functionality of the ball valve 7.

[0034] It should be noted that the utility model is a high-pressure exhaust sealing valve, which can rotate the ball valve 7 when in use, so as to switch to valve ports with different functions. The specific implementation method is to rotate the bolt 5 to release the engagement of the bolt 5 with the housing 1, thereby releasing the constraints on the limit block 4 and the hand wheel 3, so that the hand wheel 3 can rotate;

[0035] When the airflow needs to be discharged directly, the hand wheel 3 is turned, and the ball valve 7 connected thereto is driven to rotate together with the hand wheel 3, and the ball valve 7 is rotated 180 degrees by the hand wheel 3, so that the valve port originally facing downward is turned upward, and the straight valve port is turned downward to align with the circular hole at the bottom of the housing 1, and then one end of the bolt 5 is passed through the circular hole of the limit block 4 and meshed with the corresponding screw hole on the other side of the housing 1, so that the limit block 4 and the hand wheel 3 are constrained and can no longer rotate;

[0036] When it is necessary to make the gas in the valve body reach a certain pressure before discharging, the ball valve 7 can be rotated again to align the valve port of the ball valve 7 connected to the pipe sleeve 12 with the bottom circular hole of the shell 1, and the hand wheel 3 is fixed. When the gas enters the ball valve 7 through one side of the shell 1, it will be blocked by the inner wall of the shell 1 and the circular plate 15. When the pressure in the ball valve 7 reaches a certain level, the gas will push the circular plate 15 to move downward, and stretch the tension spring 14 during the movement. After the circular plate 15 moves a certain distance, it will move out of the range of the pipe sleeve 12, thereby releasing the seal of the pipe sleeve 12, so that the gas can be discharged from the circular hole at the bottom of the shell 1 through the pipe sleeve 12. When the pressure in the ball valve 7 is reduced to a certain level, the tension spring 14 will pull the circular plate 15 back to the range of the pipe sleeve 12, so that the pipe sleeve 12 is sealed.

[0037] If it is necessary to completely prevent the airflow from passing through the ball valve 7, the ball valve 7 can be rotated so that any one of the two sides of the ball valve 7 without holes is aligned with the circular hole at the bottom of the housing 1, and the circular hole at the bottom of the housing 1 is closed, thereby preventing the gas from being discharged through the circular hole at the bottom of the housing 1;

[0038] When the gas pressure increases, it is often accompanied by an increase in temperature. Excessive temperature will affect the performance of pipelines and equipment. The conduit 8 can exchange heat with the passing gas, thereby reducing the temperature of the gas. The specific implementation method is that when the gas enters the interior through the circular hole on one side of the shell 1, it will be blocked by the baffle 9, thereby dispersing, and continue to move toward the direction of the ball valve 7 during the dispersing process. After moving a certain distance, it is guided by the guide plate 10, passes through the circular hole in the middle of the guide plate 10, and is blocked by another baffle 9 again, and then passes through the circular hole of another guide plate 10 again, and enters the ball valve 7.

[0039] When the airflow passes through the conduit 8, the baffle 9 and the guide plate 10, contact is generated, thereby transferring heat to the conduit 8, the baffle 9 and the guide plate 10, and the temperature of the conduit 8, the baffle 9 and the guide plate 10 increases. The conduit 8, the baffle 9 and the guide plate 10 transfer the temperature to the cooling water inside the conduit 8, and the cooling water takes the heat out of the interior of the housing 1, thereby achieving cooling of the airflow;

[0040] By setting the conduit 8, the high-pressure exhaust sealing valve can cool down the high-temperature gas passing through the conduit 8, the baffle 9 and the guide plate 10, avoiding adverse effects on the equipment due to excessive temperature, thereby ensuring the normal operation of the equipment. By setting the pressure limiting mechanism 6, the ball valve 7 can have valve ports with different functions to adapt to different usage requirements.

[0041] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-pressure exhaust sealing valve, comprising a housing (1), the bottom and one side of the housing (1) are both provided with connecting flanges (2), the other side of the housing (1) is rotatably connected to a hand wheel (3), the middle of the hand wheel (3) is fixedly connected to a limit block (4), one end of the limit block (4) is rotatably connected to a bolt (5), one end of the bolt (5) is engaged with the housing (1), and is characterized in that: A pressure limiting mechanism (6) is provided on the inner side of the housing (1), and the pressure limiting mechanism (6) comprises a ball valve (7), one side of the ball valve (7) is fixedly connected to the hand wheel (3), the inner bottom of the ball valve (7) is fixedly connected to two stoppers (11), the inner side of the ball valve (7) is fixedly connected to a pipe sleeve (12), the top of the inner wall of the pipe sleeve (12) is fixedly connected to a fixing ring (13), the bottom of the fixing ring (13) is fixedly connected to the top of a tension spring (14), the bottom of the tension spring (14) is fixedly connected to a circular plate (15), the outer side of the tension spring (14) is slidably connected to the inner wall of the pipe sleeve (12), and the outer side of the circular plate (15) is slidably connected to the inner wall of the pipe sleeve (12).

2. A high pressure exhaust sealing valve according to claim 1, characterized in that: One side of the shell (1) is fixedly connected to a conduit (8), the middle of the conduit (8) is fixedly connected to two baffles (9), and the middle of the conduit (8) is fixedly connected to two guide plates (10), and the outer sides of the two guide plates (10) are fixedly connected to the inner wall of the shell (1).

3. A high pressure exhaust sealing valve according to claim 2, characterized in that: A circular hole is opened on one side of the guide plate (10) and penetrates to the other side, and the diameter of the circular hole is smaller than the diameter of the baffle (9).

4. A high pressure exhaust sealing valve according to claim 2, characterized in that: The baffle plate (9) has a circular groove inside, and the guide plate (10) also has a circular groove inside.

5. A high pressure exhaust sealing valve according to claim 1, characterized in that: The bottom of the pipe sleeve (12) is provided with a circular hole penetrating to the bottom, and the diameter of the circular plate (15) matches the inner diameter of the pipe sleeve (12).

6. A high pressure exhaust sealing valve according to claim 1, characterized in that: The outer diameter of the fixing ring (13) matches the inner diameter of the pipe sleeve (12), and the inner diameter of the fixing ring (13) is smaller than the diameter of the circular plate (15).

7. A high pressure exhaust sealing valve according to claim 1, characterized in that: The top of the ball valve (7) is provided with a circular hole extending to the bottom, and the other side of the ball valve (7) is provided with a circular hole extending to the center.