Gas pipeline drainage leakproof device
By introducing a dual leak-proof cylinder and float system into the gas pipeline drainage device, the problem of easy leakage from a single sealing port is solved, achieving a more efficient sealing effect and avoiding safety accidents caused by gas leaks.
Patent Information
- Application Number
- CN202520784273.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-23
AI Technical Summary
The existing gas pipeline drainage device has only one sealing port, which is easy to close but not tight, leading to leakage and causing serious accidents such as gas fire, explosion, and poisoning.
The design incorporates a dual leak-proof cylinder, utilizing the buoyancy of floats a and b to control the sealing plug. This ensures that the second seal automatically closes if the first seal leaks. Combined with a guide ring and a level bar, this maintains vertical movement and enhances the sealing effect.
It effectively prevents gas leaks, avoids accidents such as gas fires, explosions, and poisoning, and improves the safety and practicality of the equipment.
Smart Images
Figure CN223975881U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gas pipeline drainage technology, and in particular to a gas pipeline drainage leak prevention device. Background Technology
[0002] Gas pipeline drainers effectively prevent gas leaks using water seal technology, avoiding accidents such as fires and poisoning. They are widely used in industries such as metallurgy and coking. When gas is transported in pipelines, some saturated gas and mechanical water separate, adversely affecting gas delivery, pipeline facilities, and user experience. Therefore, it is essential to drain the condensate from the pipeline promptly. Gas drainers are specialized devices used to drain condensate from gas pipelines. They utilize a water seal to effectively prevent gas leaks and avoid serious accidents such as gas fires, explosions, and poisoning. They mainly consist of the drainer body, leak-proof devices, and insulation. Gas drainers are widely used in industries such as metallurgy, coking, power generation, and petrochemicals.
[0003] A gas water seal is a device that uses water level to balance gas pressure. The water column forms a sealing barrier to prevent gas leakage while simultaneously removing condensate. When the water seal cannot maintain balance due to factors such as gas pressure surges or device malfunctions, gas will break through the water layer and leak, a phenomenon known as breakdown. Gas leaks can cause serious accidents such as fires, explosions, and poisoning. In the market, a common solution is to place a leak-proof seal before the drain outlet to address breakdown. However, in actual applications, there is only one seal. Due to reasons such as the seal not closing tightly, a small leak at the seal point can directly leak out through the outlet, causing serious accidents such as gas fires, explosions, and poisoning. Summary of the Invention
[0004] This application provides a gas pipeline drainage leak prevention device to solve the problem that current market products often have only one sealing port, which is not tightly closed. A small leak at the sealing point can directly leak out through the outlet, causing serious accidents such as gas fire, explosion, and poisoning. By setting up a double leak prevention cylinder, in the event of a gas water seal rupture, the first seal uses float a to control the sealing plug to close the outlet. If the first seal leaks, the float b of the second seal will sink and close the sealing port, thus sealing the small leak at the first seal and preventing serious accidents such as gas fire, explosion, and poisoning caused by leakage.
[0005] This application provides a gas pipeline drainage and leak prevention device, including a gas drainer cylinder. A gas condensate inlet is fixed to the upper part of the gas drainer cylinder, and a condensate connecting pipe is fixed to the gas condensate inlet. A partition a is fixed to the gas drainer cylinder, and a condensate overflow pipe is fixed to the partition a. A connecting pipe is fixed to the gas drainer cylinder, and a double leak prevention cylinder is fixed to one side of the connecting pipe. A float a is provided inside the double leak prevention cylinder, and a pull rod a is fixed to the float a. A sealing plug a is fixed to the pull rod a. A float b is provided inside the double leak prevention cylinder, and a pull rod b is fixed to the float b. A sealing plug b is fixed to the pull rod b. A partition b is fixed inside the double leak prevention cylinder, and a partition c is fixed inside the double leak prevention cylinder. A drain pipe is fixed to the double leak prevention cylinder, and an overflow pipe is fixed to the drain pipe.
[0006] Preferably, a guide ring a is fixed inside the double leak-proof cylinder, and a guide ring b is fixed inside the double leak-proof cylinder. 。
[0007] Preferably, a liquid level rod is provided inside the double leak-proof cylinder, the liquid level rod is fixed with a connecting rod, and the connecting rod is fixed with a float b.
[0008] Preferably, a water supply valve is fixed above the gas drain valve cylinder. 。
[0009] Preferably, a hand-operated hole is provided on the lower part of the outer wall of the gas drain cylinder, and a drain valve is fixed in the hand-operated hole. 。
[0010] Preferably, a pressure gauge is fixed above the double leak-proof cylinder, and a pressure relief valve is fixed to the double leak-proof cylinder.
[0011] Preferably, the partition c is fixed with a limiting bracket, and the limiting bracket is provided with a water outlet.
[0012] Beneficial effects:
[0013] Considering that existing common gas pipeline drainage leak prevention devices on the market all place a leak prevention seal before the drain outlet to deal with the puncture phenomenon, but in actual application there is only one seal, it is easy for a small leak to occur at the seal due to reasons such as the seal not closing tightly, which can directly leak out through the water outlet, thus causing serious accidents such as gas fire, explosion, poisoning, etc. The practicality is not perfect and cannot meet people's needs. In view of the above-mentioned defects in the existing technology, it is necessary to further improve it to make it more practical and in line with actual use.
[0014] By fixing the gas drainer cylinder to a double leak-proof cylinder via a connecting pipe, gas condensate enters the condensate connecting pipe from the gas condensate inlet, flows through the condensate overflow pipe into the connecting pipe, and then into the double leak-proof cylinder. The first seal uses float a to control the buoyancy of the sealing plug to close the outlet. If the first seal leaks, the float b at the second seal will sink and close the seal, thus sealing the small leak at the first seal. This solves the problem of small leaks caused by only one seal and its incomplete closure, preventing serious accidents such as gas fires, explosions, and poisoning caused by leaks. Guide rings a and b are installed inside the double leak-proof cylinder to constrain the movement of floats a and b. In the event of gas water seal rupture, floats a and b maintain vertical movement, preventing sealing in an excessively tilted state. A liquid level rod is installed inside the double leak-proof cylinder, which is fixedly connected to a connecting rod. The connecting rod is fixedly connected to float b, allowing users to easily observe the liquid level of the gas pipeline drainage leak-proof device. A water supply valve is installed at the top of the gas drainer cylinder, allowing users to easily add water to the gas pipeline drainage leak-proof device by simply opening the valve, which is convenient and quick, avoiding the time-consuming and laborious process of traditional disassembly-based water addition. A hand-cleaning hole is located at the bottom of the outer wall of the gas drainer cylinder, which is fixedly connected to a drain valve, facilitating the complete drainage of wastewater and cleaning any remaining impurities inside the gas drainer cylinder, ensuring its cleanliness. A pressure gauge is installed at the top of the double leak-proof cylinder, and a pressure relief valve is fixedly installed in the double leak-proof cylinder, allowing users to easily observe the internal pressure. If the internal pressure is too high, the pressure relief valve can be used to release air. A limiting bracket is fixedly installed through the partition c, and the limiting bracket has a water outlet, preventing the water outlet from being blocked during the upward movement of float a, facilitating the discharge of condensate.
[0015] The above description is merely an overview of the technical solutions of the embodiments of this application. In order to better understand the technical means of the embodiments of this application and to implement them in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the embodiments of this application more obvious and understandable, specific implementation methods of this application are described below. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of a gas pipeline drainage and leak prevention device according to the present invention.
[0018] Figure 2 This is a front view structural diagram of a gas pipeline drainage and leak prevention device according to the present invention.
[0019] Figure 3 This is a cross-sectional structural schematic diagram of a gas pipeline drainage and leak prevention device according to the present invention.
[0020] Figure 4 This is a right-side structural schematic diagram of a gas pipeline drainage and leak prevention device according to the present invention.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Gas condensate inlet; 2. Condensate connecting pipe; 3. Baffle a; 4. Condensate overflow pipe; 5. Connecting pipe; 6. Double leak-proof cylinder; 7. Float a; 8. Tie rod a; 9. Sealing plug a; 10. Float b; 11. Tie rod b; 12. Sealing plug b; 13. Baffle b; 14. Baffle c; 15. Drain pipe; 16. Overflow pipe; 17. Guide ring a; 18. Guide ring b; 19. Liquid level rod; 20. Connecting rod; 21. Hand hole; 22. Drain valve; 23. Pressure gauge; 24. Pressure relief valve; 25. Limiting bracket; 26. Water outlet; 27. Water supply valve; 28. Gas drainer cylinder. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion.
[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0026] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0029] This utility model provides, for example Figure 1-4 A gas pipeline drainage and leak prevention device is shown, comprising a gas drainer cylinder 28, characterized in that: a gas condensate inlet 1 is fixed to the gas drainer cylinder 28, a condensate connecting pipe 2 is fixed to the gas condensate inlet 1, a partition a3 is fixed to the gas drainer cylinder 28, a condensate overflow pipe 4 is fixed to the partition a3, a connecting pipe 5 is fixed to the gas drainer cylinder 28, a double leak prevention cylinder 6 is fixed to one side of the connecting pipe 5, a float a7 is provided inside the double leak prevention cylinder 6, a pull rod a8 is fixed to the float a7, a sealing plug a9 is fixed to the pull rod a8, a float b10 is provided inside the double leak prevention cylinder 6, a pull rod b11 is fixed to the float b10, a sealing plug b12 is fixed to the pull rod b11, a partition b13 is fixed inside the double leak prevention cylinder 6, a partition c14 is fixed inside the double leak prevention cylinder 6, a drain pipe 15 is fixed to the double leak prevention cylinder 6, and an overflow pipe 16 is fixed to the drain pipe 15.
[0030] In this design, the gas drainer cylinder 28 is fixed with a double leak-proof cylinder 6 via a connecting pipe 5. This allows gas condensate to enter the condensate connecting pipe 2 from the gas condensate inlet 1, then through the condensate overflow pipe 4 into the connecting pipe 5, and finally into the double leak-proof cylinder 6. The first seal is achieved by using float a7 to control the buoyancy of the sealing plug a9 to close the outlet. If the first seal leaks, the float b at the second seal will sink and close the seal, thus sealing the small leak at the first seal. This solves the problem of leakage caused by having only one seal and not closing it tightly, and avoids serious accidents such as gas fire, explosion, and poisoning caused by leakage.
[0031] A guide ring a17 and a guide ring b18 are fixed inside the double leak-proof cylinder 6.
[0032] Among them, by setting guide ring a17 and guide ring b19 inside the double leak-proof cylinder 6, the floats a7 and b10 are constrained when moving. In the event of gas-water seal rupture, the floats a7 and b10 can maintain vertical movement, thereby preventing the problem of sealing in an excessively tilted state.
[0033] A liquid level rod 19 is installed inside the drain pipe 15. The liquid level rod 19 is fixed with a connecting rod 20, and the connecting rod 20 is fixed with a float b10.
[0034] The device features a liquid level rod 19 inside the double leak-proof cylinder 6, with a connecting rod 20 fixedly mounted on the liquid level rod 19. The connecting rod 20 is fixedly connected to the float b10, allowing users to easily observe the liquid level of the gas pipeline drainage leak-proof device.
[0035] A water supply valve 27 is fixed above the gas drainer cylinder 28.
[0036] The gas drainer cylinder 6 is equipped with a water supply valve 27, which allows users to add water to the gas pipeline drainage and leak prevention device by opening the water supply valve 27. This is convenient and quick, avoiding the time-consuming and laborious process of traditional disassembly-based water addition.
[0037] A hand-cleaning hole 21 is provided at the bottom of the outer wall of the gas drain pipe, and a drain valve 22 is fixed in the hand-cleaning hole.
[0038] The gas drain cylinder 28 has a hand hole 21 located on the lower part of its outer wall. The hand hole 21 is fixedly connected to the drain valve 22, which facilitates the complete discharge of sewage. The hand hole 21 is used to clean the remaining impurities inside the gas drain cylinder 28, ensuring the cleanliness of the inside of the gas drain cylinder 28.
[0039] A pressure gauge 23 is fixed on the top of the double leak-proof cylinder 6, and a pressure relief valve 24 is fixed on the double leak-proof cylinder 6.
[0040] The double leak-proof cylinder 6 is equipped with a pressure gauge 23 on top and a pressure relief valve 24, which allows users to easily observe the internal pressure of the double leak-proof cylinder 28. When the internal pressure is too high, the pressure can be released through the pressure relief valve 24.
[0041] The partition c14 is fixed with a limiting bracket 25, and the limiting bracket 25 is provided with a water outlet 26.
[0042] The limiting bracket 25 is fixedly installed by the partition c14. The limiting bracket 25 is provided with a water outlet 26, so that the water outlet 26 will not be blocked during the upward movement of the float a7, which facilitates the discharge of condensate.
[0043] Working principle: When this gas pipeline drainage and leak prevention device is in use, gas condensate enters the condensate connecting pipe 2 from the gas condensate inlet 1, enters the connecting pipe 5 through the condensate overflow pipe 4, and enters the double leak prevention cylinder 6 through the connecting pipe 5. The first seal is controlled by the buoyancy of the float a7 to close the outlet of the sealing plug a9. If the first seal leaks, it will cause the float b10 of the second seal to sink and close the seal, thereby sealing the small leak in the first seal. The double leak prevention cylinder 6 is equipped with guide rings a17 and b19, which restrain the floats a7 and b10 during movement. In the event of gas water seal rupture, the floats a7 and b10 can maintain vertical movement, ensuring the sealing effect of the sealing plug.
[0044] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A coal gas pipeline drainage leak prevention device comprising a coal gas drainage device cylinder, characterized in that: The coal gas drainer cylinder (28) is fixed with a coal gas condensate water inlet (1), the coal gas condensate water inlet (1) is fixed with a condensate water connecting pipe (2), the coal gas drainer cylinder (28) is fixed with a partition plate a (3), the partition plate a (3) is fixed with a condensate water overflow pipe (4), the coal gas drainer cylinder (28) is fixed with a communication pipe (5), one side of the communication pipe (5) is fixed with a double leakage prevention cylinder (6), the double leakage prevention cylinder (6) is internally provided with a float a (7), the float a (7) is fixed with a pull rod a (8), the pull rod a (8) is fixed with a sealing plug a (9), the double leakage prevention cylinder (6) is internally provided with a float b (10), the float b (10) is fixed with a pull rod b (11), the pull rod b (11) is fixed with a sealing plug b (12), the double leakage prevention cylinder (6) is internally fixed with a partition plate b (13), the double leakage prevention cylinder (6) is internally fixed with a partition plate c (14), the double leakage prevention cylinder (6) is fixed with a drain pipe (15), the drain pipe (15) is fixed with an overflow pipe (16).
2. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The double leakage prevention cylinder (6) is internally fixed with a guide ring a (17), the double leakage prevention cylinder (6) is internally fixed with a guide ring b (18).
3. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The double leakage prevention cylinder (6) is internally provided with a liquid level rod (19), the liquid level rod (19) is fixed with a connecting rod (20), the connecting rod (20) is fixed with a float b (10).
4. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The coal gas drainer cylinder (28) is fixed with a water replenishing valve (27) above.
5. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The coal gas drainer cylinder outer wall lower portion is provided with a hand hole (21), and the hand hole is fixed with a blowdown valve (22) 。 6. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The double anti-leakage cylinder (6) is fixed with a pressure gauge (23) above, and is fixed with a pressure relief valve (24) 。 7. The coal gas pipeline drainage anti-leakage device according to claim 1, characterized in that: The partition plate c (14) is fixed with a limiting support (25), the limiting support (25) is provided with a water outlet (26).