Liquid level meter for gas drainer and gas drainer

Abstract

The utility model relates to the technical field of gas pipeline drainer facilities, in particular to a liquidometer for a gas drainer and the gas drainer, the liquidometer comprises a main body pipe and a floating ball connected by a connecting rod, the main body pipe is provided with a scale, the top of the main body pipe is provided with a first seal, and the first seal is provided with a second seal. The first seal comprises an end cover welded to the top of the main body pipe and further comprises a wave-proof pipe connected to the lower portion of the main body pipe, a second seal is arranged in the wave-proof pipe, and the second seal blocks communication between the interior of the main body pipe and an inner cavity of the drainer; according to the utility model, the second seal in the wave-proof pipe is introduced on the basis of the welding seal of the end cover of the liquid level meter, so that double seal is realized, the problem of unreliability of single seal is avoided, the leakproof effect of the liquid level meter is ensured on the premise of not influencing the precision of the liquid level meter, and the service life of a gas drainer using the liquid level meter is also ensured at the same time.

Description

Technical Field

[0001] This utility model relates to the technical field of gas pipeline drainer facilities, specifically providing a level gauge for a gas drainer and a gas drainer. Background Technology

[0002] A drainer is a drainage component for gas pipelines. When gas passes through a drainer, the moisture in the gas is condensed and separated out, preventing the moisture in the gas from corroding equipment, pipelines, and valves during subsequent use. This prevents damage and blockage of pipes and valves, which could affect gas delivery and cause safety accidents.

[0003] Existing gas drainers utilize water seal height to overcome gas pressure and prevent gas leakage, making the overall sealing performance of the gas drainer particularly important. Traditional gas drainers on the market typically install level gauges to monitor the water level inside. However, after prolonged use, the level gauge's end cap seal is prone to leakage under constant high pressure. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a level gauge for a gas drainer and a gas drainer, wherein the level gauge is equipped with a double seal, which improves the sealing effect of the level gauge while ensuring its accuracy.

[0005] The technical solution of this utility model is as follows:

[0006] A level gauge for a gas drainer includes a main tube and a float connected by a connecting rod. A scale is provided on the main tube, and a first seal is provided at the top of the main tube. The first seal includes an end cap welded to the top of the main tube and a wave deflector connected below the main tube. A second seal is provided in the wave deflector, and the second seal prevents communication between the inside of the main tube and the inner cavity of the drainer.

[0007] In this design, the anti-surge tube prevents the float and connecting rod from swaying due to the sloshing of liquid in the drain tank, and prevents the connecting rod from bending over time, which would lead to inaccurate level display. At the same time, a second seal is set on top of the first seal, which forms another seal by blocking the inside of the tube from the inner cavity of the drain. Only when the second seal fails will the end cap of the first seal be directly subjected to the pressure inside the drain. By setting up two seals, the leakage prevention effect and service life of the level gauge can be further guaranteed.

[0008] On the one hand, the float, along with the connecting rod, slides within the main tube as the liquid level rises and falls, thus controlling the change in the scale reading. On the other hand, the second seal blocks the communication between the inside of the main tube and the inner cavity of the drainer, creating a closed space inside the main tube. Therefore, to ensure that the movement of the connecting rod does not affect the blocking effect of the second seal, and to ensure that the internal space of the main tube does not affect the movement of the connecting rod due to pressure changes, preferably, the wave-damping pipe includes a closed pipe section connected to the main tube. The second seal includes a pressure compensation unit and a flexible folding cover mounted on the wall of the closed pipe section, the folding cover connecting the inner wall of the closed pipe end to the connecting rod.

[0009] In this design, the flexible folding cover extends and retracts with the movement of the connecting rod, automatically changing its length to ensure the sealing effect of the second seal. The closed pipe section provides space for the folding cover to extend, preventing it from interfering with the main pipe. Pressure changes inside the main pipe can also be compensated by the pressure compensation unit, ensuring that the float is not disturbed by forces other than gravity and buoyancy.

[0010] Preferably, the top surface of the folding cover is annular, the inner ring of the folding cover is connected to the connecting rod, the outer ring of the folding cover is connected to the bottom of the closed pipe section, and the inner and outer ring diameters of the folding cover are adapted to the rod diameter of the connecting rod and the pipe diameter of the closed pipe section, respectively.

[0011] Preferably, the pressure compensation unit includes a flexible airbag disposed on the wall of the closed pipe section.

[0012] In this design, the flexible airbag can expand outward as the float moves upward, causing the internal space of the main tube to shrink, and it can also retract as the float descends, causing the internal space of the main tube to expand. This ensures that the pressure in the sealed space formed by the main tube does not change, thus not affecting the movement of the connecting rod and ensuring the accuracy of the level gauge reading.

[0013] Preferably, the wave-damping pipe further includes a mesh cage section, the wall of which is provided with mesh openings that communicate with the outside, and the inner diameter of the mesh cage section is adapted to the outer diameter of the float.

[0014] In this design, the inner diameter of the mesh cage section is matched with the outer diameter of the float. The float can make intermittent contact with the inner wall of the mesh cage section, ensuring that the float will not swing with the fluctuation of the liquid level and avoid damage to the connecting rod. At the same time, the mesh cage section has mesh holes and is connected to the inside of the drainer. The pressure in the mesh cage section is the same as the pressure in the drainer, ensuring the accuracy of the liquid level.

[0015] To facilitate the installation and removal of the folding cover, preferably, the inner ring of the folding cover is provided with a mounting ring, and the connecting rod is provided with an abutment block and threads. The mounting ring is connected to the abutment block by a nut. The inner ring of the folding cover is fixedly connected to the mounting ring, and the nut abuts and fixes the mounting ring to the abutment block on the connecting rod.

[0016] Preferably, the outer ring of the folding cover is provided with a flange, which is sealed to the flange of the closed pipe section. In this design, the flange connection ensures its sealing performance.

[0017] Preferably, the folding cover is made of fluororubber with a wavy vertical cross-section.

[0018] In this design, the folding cover has a wave structure that allows it to be unfolded and folded more easily. It is made of fluororubber, which has excellent physical properties. It has high ductility, and its stability, anti-aging properties, and high temperature resistance can ensure long-term use in the drainer.

[0019] Preferably, the main body pipe is provided with a main body flange, which is sealed and connected to the mounting flange on the drainer. The main body flange allows for direct and sealed connection of the entire level gauge to the drainer, enabling efficient installation.

[0020] A gas drainer includes a level gauge for a gas drainer as described above, and also includes a leakage overpressure protector.

[0021] In this solution, the use of a level gauge with double seals in the drainer can effectively improve the overall service life of the drainer. There is no need to worry about leakage at the level gauge. When the gas pressure is too high, the overpressure protection device can prevent the gas drainer from being punctured and prevent gas leakage.

[0022] The beneficial effects of this utility model are:

[0023] This invention introduces a second seal in the anti-surge pipe on the basis of the welded seal of the liquid level gauge end cover, realizing a double seal. This avoids the problem of unreliability of a single seal, and ensures the anti-leakage effect of the liquid level gauge without affecting its accuracy. It also ensures the service life of the gas drainer using the liquid level gauge. Attached Figure Description

[0024] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the drain device of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall liquid level gauge of this utility model;

[0027] Figure 3 This is a schematic diagram of the floating liquid level gauge of this utility model;

[0028] Figure 4 This is a cross-sectional view of the liquid level gauge of this utility model.

[0029] In the above figures, the corresponding reference numerals are as follows:

[0030] 1-Main pipe, 101-Main flange, 2-Connecting rod, 201-Abutment block, 3-Float ball, 4-Scale, 5-First seal, 501-End cap, 6-Blowout pipe, 601-Closed pipe section, 602-Cage section, 61-Pressure compensation unit, 611-Flexible airbag, 62-Folded cover, 621-Mounting ring, 622-Nut, 7-Second seal, 8-Leakage overpressure protector. Detailed Implementation

[0031] The technical solution of the present invention will be clearly and completely described in conjunction with the accompanying drawings and through specific implementation methods of the embodiments of the present invention.

[0032] Example 1:

[0033] A level gauge for a gas drainer includes a main tube 1 and a float 3 connected by a connecting rod 2. A scale 4 is provided on the main tube 1, and a first seal 5 is provided on the top of the main tube 1. The first seal 5 includes an end cap 501 welded to the top of the main tube 1, and also includes a wave-damping pipe 6 connected below the main tube 1. A second seal 7 is provided in the wave-damping pipe 6, and the second seal 7 blocks the communication between the inside of the main tube 1 and the inner cavity of the drainer.

[0034] Among them, such as Figures 2 to 4 As shown, specifically, a main flange 101 is provided on the main tube 1, and the main flange 101 is sealed and connected to the mounting flange on the drainer. The entire level gauge can be directly and sealed to the drainer through the main flange 101, which is an efficient installation method. The anti-surge pipe 6 includes a closed pipe section 601 and a mesh cage section 602. The anti-surge pipe 6 can prevent the float 3 and the connecting rod 2 from swinging due to the sloshing of liquid in the drainer tank, and prevent the connecting rod 2 from bending after long-term use, which would lead to inaccurate level display. At the same time, a second seal 7 is provided on the basis of the first seal 5. By blocking the inside of the tube from the inner cavity of the drainer, another seal is formed. Only when the second seal 7 fails will the end cap 501 of the first seal 5 be directly subjected to the pressure inside the drainer. By setting up a double seal, the leakage prevention effect and service life of the level gauge can be further guaranteed.

[0035] It should be noted that, because the float 3, along with the connecting rod 2, slides within the main tube 1 as the liquid level rises and falls, thus controlling the change in the real number on the scale 4, the second seal 7 blocks the communication between the inside of the main tube 1 and the inner cavity of the drainer, creating a closed space inside the main tube 1. Therefore, to ensure that the movement of the connecting rod 2 does not affect the blocking effect of the second seal 7, and to ensure that the movement of the connecting rod 2 is not affected by pressure changes within the main tube 1, as follows... Figure 2 As shown, specifically, the wave-damping pipe 6 includes a closed pipe section 601, which is connected to the main pipe 1. The second seal 7 includes a pressure compensation unit 61 and a flexible folding cover 62 disposed on the pipe wall of the closed pipe section 601. The folding cover 62 connects the inner wall of the closed pipe end to the connecting rod 2.

[0036] In this embodiment, such as Figure 3 As shown, the flexible folding cover 62 extends and retracts with the movement of the connecting rod 2, automatically changing its length to ensure the sealing effect of the second seal 7. The closed pipe section 601 provides space for the folding cover 62 to extend, avoiding interference with the main pipe 1. The pressure change in the internal space of the main pipe 1 can also be compensated by the pressure compensation unit 61, ensuring that the float 3 is not disturbed by forces other than gravity and buoyancy.

[0037] Furthermore, the folding cover 62 is made of fluororubber with a wavy vertical cross-section. The top surface of the folding cover 62 is annular, the inner ring of the folding cover 62 is connected to the connecting rod 2, and the outer ring of the folding cover 62 is connected to the bottom of the closed pipe section 601. The inner and outer diameters of the folding cover 62 are respectively adapted to the rod diameter of the connecting rod 2 and the pipe diameter of the closed pipe section 601.

[0038] Specifically, the wave deflector 6 also includes a mesh cage section 602, the wall of which is provided with mesh holes that communicate with the outside, and the inner diameter of the mesh cage section 602 is adapted to the outer diameter of the float 3.

[0039] To facilitate the installation and removal of the folding cover 62, such as Figure 4 As shown, the inner ring of the folding cover 62 is provided with a mounting ring 621, and the connecting rod 2 is provided with an abutment block 201 and threads. The mounting ring 621 is connected to the abutment block 201 by a nut 622. The inner ring of the folding cover 62 is fixedly connected to the mounting ring 621, and the nut 622 abuts and fixes the mounting ring 621 to the abutment block 201 on the connecting rod 2. The outer ring of the folding cover 62 is provided with a flange, which is sealed to the flange of the closed pipe section 601.

[0040] In this embodiment, the folding cover 62 has a wave-like structure, allowing for easier unfolding and folding. It is made of fluororubber, which possesses excellent physical properties, exhibiting high ductility while maintaining stability, anti-aging properties, and high-temperature resistance, ensuring long-term use in the drainer. Furthermore, the flange connection on the outer ring ensures its sealing performance. The inner diameter of the mesh cage section 602 is adapted to the outer diameter of the float 3. The float 3, within the mesh cage section 602, maintains a gap with the inner wall of the mesh cage section 602, preventing the float 3 from swaying with liquid level fluctuations and avoiding damage to the connecting rod 2. Simultaneously, the mesh cage section 602 has mesh openings, communicating with the interior of the drainer. The pressure within the mesh cage section 602 is the same as the pressure within the drainer, ensuring accurate liquid level readings.

[0041] Furthermore, the pressure compensation unit 61 includes a flexible airbag 611 disposed on the wall of the closed pipe section 601.

[0042] Specifically, the flexible airbag 611 can expand outward as the float 3 moves upward, causing the internal space of the main tube 1 to shrink, and it can also retract as the float 3 moves downward, causing the internal space of the main tube 1 to expand. This ensures that the pressure in the sealed space formed by the main tube 1 does not change, thus not affecting the movement of the connecting rod 2 and ensuring the accuracy of the level gauge reading.

[0043] Example 2:

[0044] A gas drainer, using a level gauge for a gas drainer as described in the above embodiments, such as... Figure 1 As shown, it also includes a leakage overpressure protector 8.

[0045] In this embodiment, the use of a level gauge with double seals in the drainer effectively improves the overall service life of the drainer, eliminating concerns about leakage at the level gauge. Furthermore, when the gas pressure is too high, a large amount of water and gas from the drainer rushes towards the valve cover of the leak stopper. The valve cover moves along the bracket, and under high pressure, the sealing ring tightly seals the inlet short pipe, effectively preventing water and gas leakage and achieving a leak-proof function. The overpressure protection device 8 prevents the gas drainer from being punctured, preventing gas leakage and ensuring the drainer's sealing and safety.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A level gauge for a gas drainer, comprising a main tube (1) and a float (3) connected by a connecting rod (2), wherein a scale (4) is provided on the main tube (1), characterized in that, The top of the main tube (1) is provided with a first seal (5), the first seal (5) includes an end cap (501) welded to the top of the main tube (1), and also includes a wave deflector (6) connected to the bottom of the main tube (1). The wave deflector (6) is provided with a second seal (7), the second seal (7) blocking the communication between the inside of the main tube (1) and the inner cavity of the drainer.

2. The level gauge for a gas drainer according to claim 1, characterized in that, The wave-damping pipe (6) includes a closed pipe section (601) which is connected to the main pipe (1). The second seal (7) includes a pressure compensation unit (61) and a flexible folding cover (62) disposed on the pipe wall of the closed pipe section (601). The folding cover (62) connects the inner wall of the closed pipe section to the connecting rod (2).

3. The level gauge for a gas drainer according to claim 2, characterized in that, The top surface of the folding cover (62) is annular. The inner ring of the folding cover (62) is connected to the connecting rod (2), and the outer ring of the folding cover (62) is connected to the bottom of the closed pipe section (601). The inner and outer ring diameters of the folding cover (62) are adapted to the rod diameter of the connecting rod (2) and the pipe diameter of the closed pipe section (601), respectively.

4. A level gauge for a gas drainer according to claim 2, characterized in that, The pressure compensation unit (61) includes a flexible airbag (611) disposed on the wall of the closed pipe section (601).

5. A level gauge for a gas drainer according to claim 2, characterized in that, The wave-damping pipe (6) also includes a mesh cage section (602), the wall of which is provided with mesh holes that communicate with the outside world, and the inner diameter of the mesh cage section (602) is adapted to the outer diameter of the float (3).

6. A level gauge for a gas drainer according to claim 3, characterized in that, The inner ring of the folding cover (62) is provided with an installation ring (621), and the connecting rod (2) is provided with an abutment block (201) and a thread. The installation ring (621) is connected to the abutment block (201) by a nut (622).

7. A level gauge for a gas drainer according to claim 6, characterized in that, The outer ring of the folding cover (62) is provided with a flange, which is sealed to the flange of the closed pipe section (601).

8. A level gauge for a gas drainer according to claim 7, characterized in that, The folding cover (62) is made of fluororubber with a wavy vertical cross-section.

9. A level gauge for a gas drainer according to claim 1, characterized in that, The main pipe (1) is provided with a main flange (101), which is sealed to the mounting flange on the drainer.

10. A gas drainer, characterized in that, The gas drain level gauge according to any one of claims 1 to 9 further includes a leakage overpressure protector (8).

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