Air exhausting device for hydrostatic test of pressure vessel

Abstract

The utility model discloses an exhaust device for a hydrostatic test of a pressure vessel, which particularly relates to the technical field of exhaust of the pressure vessel and comprises a pressure tank, a sealing top cover is arranged at the upper end of the pressure tank, an exhaust water inlet pipe is arranged on the upper side of the outer end face of the pressure tank, and a sealing mounting plate is arranged at the outer end of the exhaust water inlet pipe. A supporting water inlet pipe is arranged on one side of the exhaust water inlet pipe on the inner end face of the pressure tank, and a water inlet pipe and an exhaust pipe are arranged on the outer end face of the sealing mounting plate. When the pressure tank is actually used, air in the pressure tank can be conveniently discharged when water is injected into the pressure tank in the corresponding arrangement state of the air inlet groove, the first air inlet hole, the second air inlet hole and the breathable waterproof pad, so that the water pressure of the pressure tank is conveniently detected, and meanwhile, in the corresponding arrangement state of the supporting pad and the supporting spring, the water pressure of the pressure tank can be conveniently detected. When water flow in the pressure tank enters the sealing sleeve from the air inlet groove, the water flow can be blocked by the breathable waterproof pad.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessel exhaust, and more specifically, the utility model relates to a pressure vessel hydrostatic test exhaust device. Background Technique

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. While making great contributions to the country, the danger of pressure vessels cannot be ignored. Since special equipment accidents are sudden, highly harmful, and prone to causing mass deaths and injuries, the inspection of special equipment is a mandatory inspection approved by the state. During the pressure testing of pressure vessels, it is necessary to discharge the excess air inside to ensure the stability and accuracy of the pressure vessel test. For example, a pressure vessel hydrostatic test exhaust device disclosed in the prior art publication number (CN213544208U) injects water into the tank through the water injection and pressure boosting conduit on the flange. As more and more water is poured into the tank, the flexible hose with a floating member floats on the water surface, keeping the valve switch in the open state. The air inside the tank is then discharged from the tank through the flexible hose, so that there is no longer a gas phase space, and the water can fill the entire space, with a filling rate of over 98%. Then, the valve switch is closed, the pressure boosting pipeline is connected to the water injection and pressure boosting conduit, and the electric pressure pump is started to boost the pressure. When the pressure rises to the target pressure value, the electric contact pressure gauge outputs an electric signal and then cuts off the electric pump to start pressure holding. After the pressure holding time (usually 30 minutes), the electric pump is disconnected to start draining water and the valve switch is opened to admit air at the same time.

[0003] When the above device is in use, the air in the pressure vessel can be discharged through the flexible hose and the exhaust conduit, greatly shortening the test time and improving work efficiency. When the flexible hose is subjected to a large water pressure during use, the middle part of the pipeline is prone to deformation, causing the inner walls to fit together, and unable to effectively discharge all the gas inside the pressure vessel, thus affecting the test effect and stability of the pressure vessel. Content of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pressure vessel hydrostatic test exhaust device. The technical problem to be solved by the utility model is: how to improve the effect of discharging the gas inside the pressure tank.

[0005] To achieve the above object, the present utility model provides the following technical solution: A hydrostatic test exhaust device for a pressure vessel, including a pressure tank, with a sealed top cover provided at its upper end. On the upper side of the outer end face of the pressure tank, there is an exhaust water inlet pipe, and a sealed mounting plate is provided at the outer end of the exhaust water inlet pipe. On the inner end face of the pressure tank, on one side of the exhaust water inlet pipe, there is a support water inlet pipe. On the outer end face of the sealed mounting plate, there are a water inlet pipe and an exhaust pipe. The exhaust pipe passes through the end face of the sealed mounting plate and extends into the interior of the support water inlet pipe. One end of the exhaust pipe is provided with a sealed sleeve inside the support water inlet pipe;

[0006] On the inner end face of the exhaust pipe, near the inner end face of the sealed sleeve, there is a support block. Inside the support block, there is a support limit groove. On the upper side of the support limit groove on the inner end face of the support block, there is a limit sliding groove. On the end face of the support block, outside the support limit groove, there is a first air inlet hole. Outside the upper end of the support limit groove, there is a support sliding rod;

[0007] At the upper end of the support sliding rod, there is a support pad. At the upper end of the support pad, there is a breathable waterproof pad. On the end face of the support pad, there is a second air inlet hole. On the upper side of the outer end face of the support sliding rod, there is a limit sliding block. The support sliding rod passes through the middle of the limit sliding groove and the support limit groove and extends to the lower side of the support block. On the inner side of the support limit groove on the outer end face of the support sliding rod, there is a support spring.

[0008] In a preferred embodiment, a support plate is provided at the lower end of the pressure tank. On the lower side of the outer end face of the pressure tank, there is a water guide port. At the upper end of the support water inlet pipe, there is a water distribution groove. On the upper side of the outer end face of the exhaust pipe, there is a control valve;

[0009] The inner end face of the sealed sleeve is connected to the outer end face of the exhaust pipe through the provided thread. On the upper side of the sealed sleeve, there is an air inlet groove.

[0010] In a preferred embodiment, the control valve is electrically connected to an external control device. The pressure tank and the sealed top cover are connected by the provided bolts. The exhaust water inlet pipe and the sealed mounting plate are connected by the provided bolts;

[0011] The support water inlet pipe is communicated with the water inlet pipe. The exhaust pipe and the support water inlet pipe are arranged in an inclined state in the main view direction.

[0012] In a preferred embodiment, the inner end face of the limit sliding groove is adapted to the outer end face of the limit sliding block. The number of the first air inlet holes is two, and they are arranged in an annular array state outside the center point in the top view direction of the support block.

[0013] In a preferred embodiment, the number of the second air inlet holes is two, and they are arranged in an annular array outside the center point in the top view direction of the support pad. The two first air inlet holes and the second air inlet holes are arranged in a staggered state in the top view direction.

[0014] In a preferred embodiment, the support pad is a rubber material component, the breathable waterproof pad is made of non-woven fabric, the upper end face of the breathable waterproof pad in the front view direction and the upper end face of the exhaust pipe in the front view direction are arranged in a coplanar state, and the upper end faces of the sealing sleeve and the support water inlet pipe are both attached to the lower end face of the sealing top cover.

[0015] The technical effects and advantages of the present utility model:

[0016] When the present utility model is actually used, through the corresponding arrangement states of the air inlet groove, the first air inlet hole, the second air inlet hole and the breathable waterproof pad, when filling water into the pressure tank, the air inside the pressure tank can be conveniently discharged, so as to facilitate the detection of the water pressure in the pressure tank. At the same time, in the corresponding arrangement state of the support pad and the support spring, when the water flow inside the pressure tank enters the inside of the sealing sleeve from the air inlet groove, it will be blocked by the breathable waterproof pad. In the state of continuous water addition, the pressure of the water flow will push the breathable waterproof pad to move downward, so that the support block is attached to the support pad. In the state where the first air inlet hole and the second air inlet hole are staggered in the top view direction, the first air inlet hole and the second air inlet hole can be blocked, thereby increasing the stability and effect of the pressure tank test. Description of the drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0018] Figure 2 It is a schematic diagram of the overall rear structure of the present utility model.

[0019] Figure 3 It is a schematic diagram of the overall front view sectional structure of the present utility model.

[0020] Figure 4 It is a schematic diagram of the sectional connection structure of the sealing sleeve of the present utility model.

[0021] The reference numerals are: 1 pressure tank, 2 water guide port, 3 support plate, 4 sealing top cover, 5 exhaust water inlet pipe, 6 sealing mounting plate, 7 water inlet pipe, 8 exhaust pipe, 9 control valve, 10 support water inlet pipe, 11 water distribution tank, 12 sealing sleeve, 13 air inlet groove, 14 support block, 15 support limit groove, 16 limit sliding groove, 17 first air inlet hole, 18 support pad, 19 support sliding rod, 20 support spring, 21 limit slider, 22 second air inlet hole, 23 breathable waterproof pad. Detailed implementation manners

[0022] The utility model provides a water pressure test exhaust device for a pressure vessel, as Figure 1 , Figure 2 and Figure 3 shown, which includes a pressure tank 1 with a sealed top cover 4 provided at its upper end. An exhaust water inlet pipe 5 is provided on the upper side of the outer end face of the pressure tank 1. A sealed mounting plate 6 is provided at the outer end of the exhaust water inlet pipe 5. A support water inlet pipe 10 is provided on the inner end face of the pressure tank 1 on one side of the exhaust water inlet pipe 5. An inlet water pipe 7 and an exhaust pipe 8 are provided on the outer end face of the sealed mounting plate 6. The exhaust pipe 8 passes through the end face of the sealed mounting plate 6 and extends into the interior of the support water inlet pipe 10;

[0023] A support plate 3 is provided at the lower end of the pressure tank 1. A water guide port 2 is provided on the lower side of the outer end face of the pressure tank 1. A water distribution tank 11 is provided at the upper end of the support water inlet pipe 10. A control valve 9 is provided on the upper side of the outer end face of the exhaust pipe 8. The control valve 9 is electrically connected to an external control device. The pressure tank 1 and the sealed top cover 4 are connected by bolts provided. The exhaust water inlet pipe 5 and the sealed mounting plate 6 are connected by bolts provided. The support water inlet pipe 10 and the inlet water pipe 7 are communicated. The exhaust pipe 8 and the support water inlet pipe 10 are arranged in an inclined state in the front view direction.

[0024] As Figure 4 shown, a sealed sleeve 12 is provided on the inner side of one end of the exhaust pipe 8 in the support water inlet pipe 10. A support block 14 is provided on the inner end face of the exhaust pipe 8 near the inner end face of the sealed sleeve 12. A support limit groove 15 is provided inside the support block 14. A limit sliding groove 16 is provided on the upper side of the support limit groove 15 on the inner end face of the support block 14. A first air inlet hole 17 is provided on the outer side of the support limit groove 15 on the end face of the support block 14;

[0025] A support sliding rod 19 is provided outside the upper end of the support limit groove 15. A support pad 18 is provided at the upper end of the support sliding rod 19. A breathable waterproof pad 23 is provided at the upper end of the support pad 18. A second air inlet hole 22 is provided on the end face of the support pad 18. A limit sliding block 21 is provided on the upper side of the outer end face of the support sliding rod 19. The support sliding rod 19 passes through the middle of the limit sliding groove 16 and the support limit groove 15 and extends to the lower side of the support block 14. A support spring 20 is provided on the inner side of the support sliding rod 19 in the support limit groove 15;

[0026] The inner end face of the sealing sleeve 12 is connected to the outer end face of the exhaust pipe 8 through the provided threads. An air inlet groove 13 is formed on the upper side of the sealing sleeve 12. The inner end face of the limit sliding groove 16 is adapted to the outer end face of the limit sliding block 21. The number of the first air inlet holes 17 is two, and they are arranged in an annular array state outside the center point in the top view direction of the support block 14. The number of the second air inlet holes 22 is two, and they are arranged in an annular array state outside the center point in the top view direction of the support pad 18;

[0027] The two first air inlet holes 17 and the second air inlet holes 22 are arranged in a staggered state in the top view direction. The support pad 18 is a rubber material component. The breathable waterproof pad 23 is made of non-woven fabric. The upper side end face of the breathable waterproof pad 23 in the front view direction and the upper side end face of the exhaust pipe 8 in the front view direction are in a coplanar state. The upper side end faces of the sealing sleeve 12 and the support water inlet pipe 10 are both attached to the lower side end face of the sealing top cover 4.

[0028] The working principle of the present utility model:

[0029] When the present utility model is in use, when the staff conducts a test on the pressure tank 1, the staff seals the pressure tank 1, and then the staff injects water into the support water inlet pipe 10 and the interior of the pressure tank 1 through the water inlet pipe 7. At the same time, the control valve 9 is opened through an external control device. When the staff injects water into the interior of the support water inlet pipe 10, the water flow will be introduced into the interior of the pressure tank 1 from the water distribution tank 11. At the same time, the air inside the pressure tank 1 will be introduced into the interior of the support pad 18 from the air inlet groove 13, the second air inlet hole 22, and the first air inlet hole 17, and then be discharged outward. Subsequently, when the interior of the pressure tank 1 is filled with water, the water flow will be introduced into the interior of the sealing sleeve 12 from the air inlet groove 13. When the water flow is blocked by the breathable waterproof pad 23, the pressure of the water flow will drive the support pad 18 to move downward, so that the support pad 18 fits together with the upper end of the support block 14, thereby sealing the support block 14 and the support pad 18. Subsequently, the staff can drive the control valve 9 to work through an external control device to make it in a closed state, and then the water pressure test of the pressure tank 1 can be carried out.

[0030] Finally, several points should be noted: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0031] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pressure vessel hydraulic test exhaust device, characterized in that: include: A pressure tank (1) is provided with a sealing top cover (4) at its upper end; an exhaust water inlet pipe (5) is provided on the upper side of the outer end surface of the pressure tank (1); a sealing mounting plate (6) is provided at the outer end of the exhaust water inlet pipe (5); a supporting water inlet pipe (10) is provided on the inner end surface of the pressure tank (1) on one side of the exhaust water inlet pipe (5); a water inlet pipe (7) and an exhaust pipe (8) are provided on the outer end surface of the sealing mounting plate (6); the exhaust pipe (8) passes through the end surface of the sealing mounting plate (6) and extends to the inside of the supporting water inlet pipe (10); one end of the exhaust pipe (8) is provided with a sealing sleeve (12) on the inner side of the supporting water inlet pipe (10); The inner end surface of the exhaust pipe (8) is provided with a support block (14) at the inner end surface close to the sealing sleeve (12); a support limit groove (15) is provided inside the support block (14); a limit slide groove (16) is provided on the upper side of the support limit groove (15) on the inner end surface of the support block (14); a first air inlet hole (17) is provided on the outer side of the support limit groove (15) on the end surface of the support block (14); and a support slide rod (19) is provided outside the upper end of the support limit groove (15); A support pad (18) is provided at the upper end of the support slide bar (19), a breathable waterproof pad (23) is provided at the upper end of the support pad (18), a second air inlet hole (22) is provided at the end surface of the support pad (18), a limiting slider (21) is provided at the upper side of the outer end surface of the support slide bar (19), the support slide bar (19) passes through the limiting slide groove (16) and the middle part of the support limiting groove (15), and extends to the lower side of the support block (14), and a support spring (20) is provided at the inner side of the support limiting groove (15) at the outer end surface of the support slide bar (19).

2. A pressure vessel hydraulic test exhaust device according to claim 1, characterized in that: A support plate (3) is provided at the lower end of the pressure tank (1), a water guide port (2) is provided at the lower side of the outer end surface of the pressure tank (1), a water distribution groove (11) is provided at the upper end of the supporting water inlet pipe (10), and a control valve (9) is provided at the upper side of the outer end surface of the exhaust pipe (8); The inner end surface of the sealing sleeve (12) is connected to the outer end surface of the exhaust pipe (8) via a threaded connection, and an air inlet groove (13) is provided on the upper side of the sealing sleeve (12).

3. A pressure vessel hydraulic test exhaust device according to claim 2, characterized in that: The control valve (9) is electrically connected to the external control device, the pressure tank (1) is connected to the sealing top cover (4) via the provided bolts, and the exhaust water inlet pipe (5) is connected to the sealing mounting plate (6) via the provided bolts; The supporting water inlet pipe (10) is connected to the water inlet pipe (7), and the exhaust pipe (8) and the supporting water inlet pipe (10) are arranged in an inclined state in the main viewing direction.

4. The pressure vessel hydraulic test exhaust device according to claim 1, characterized in that: The inner end surface of the limiting sliding groove (16) is matched with the outer end surface of the limiting sliding block (21), and the number of the first air inlet holes (17) is two, and they are arranged in a ring array state outside the center point of the support block (14) in the top view direction.

5. A pressure vessel water pressure test exhaust device according to claim 4, characterized in that: The number of the second air inlet holes (22) is two, and they are arranged in a circular array state outside the center point of the support pad (18) in the top-view direction, and the two first air inlet holes (17) and the second air inlet holes (22) are arranged in a staggered state in the top-view direction.

6. The pressure vessel hydraulic test exhaust device according to claim 1, characterized in that: The support pad (18) is a rubber component, the breathable waterproof pad (23) is made of non-woven fabric, the upper end surface of the breathable waterproof pad (23) in the main viewing direction is arranged in a coplanar state with the upper end surface of the exhaust pipe (8) in the main viewing direction, and the upper end surfaces of the sealing sleeve (12) and the supporting water inlet pipe (10) are both in contact with the lower end surface of the sealing top cover (4).

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