A pressure vessel air leakage detection system

Abstract

The present invention discloses a pressure vessel air leakage detection system, which includes a noise reduction device. The noise reduction device includes an upper structure, a lower structure and a pressure relief pipeline. The upper structure includes a first water tank, and the lower structure includes a noise reduction pool, a water storage pool and a second water tank. The noise reduction pool is installed in the second water tank and is connected to the first water tank. The first water tank and the second water tank are sealed and connected. A first gap is provided between the periphery of the noise reduction pool and the second water tank, and a second gap is provided between the bottom of the noise reduction pool and the second water tank. A first pipeline is provided between one side of the first water tank and one side of the second water tank, and a first water pump is provided on the first pipeline. A second pipeline is provided between the opposite side of the first water tank and the opposite side of the second water tank, and a second water pump is provided on the second pipeline. The pressure relief pipeline is inserted into the noise reduction pool from the inside of the first water tank, and the air outlet of the pressure relief pipeline is located at the bottom of the noise reduction pool. The present invention solves many technical problems of the existing pressure vessel air leakage detection system.

Description

Technical Field

[0001] The present invention relates to the technical field of noise elimination of pressure vessels, and particularly relates to a pressure vessel air leakage detection system. Background Art

[0002] A pressure vessel is a sealed container that can withstand pressure. When the pressure of the pressure vessel reaches 0.4 Mpa, it needs to exhaust a large amount of gas outward. During the process of detecting D1-class pressure vessels (such as liquid accumulators and separators) used in air-conditioning systems, generally compressed gas or bottled gas is required for air leakage detection (to make its pressure 3 MPa or above), and the direct discharge method is adopted during pressure relief. Since the gas will produce harsh noise when discharged, a designated direct discharge area is required, and the noise is uncontrollable. In order to eliminate the noise, a special muffler needs to be installed. Most of the existing mufflers adopt the impedance composite noise elimination principle. Due to reasons such as complex structure, large weight, high-temperature oxidation of the sound-absorbing filler, high-speed air flow impacting the sound-absorbing filler, and water vapor permeating the sound-absorbing filler, the muffler is prone to frequent maintenance, poor noise elimination effect, short service life, etc. Therefore, there is an urgent need to develop a new type of noise reduction device to achieve the purpose of pressure relief and noise elimination and reduction of the pressure vessel.

[0003] There are also improvements to the prior art. The Chinese invention patent with the authorization announcement number CN105972371B discloses a pressure vessel noise reduction device and a pressure vessel detection system. Among them, a pressure vessel noise reduction device includes an upper structure and a lower structure. The upper structure includes a sewer, and the lower structure includes a reservoir and a noise reduction pool. The sewer is above the reservoir, and the reservoir is above the noise reduction pool. The pressure relief pipeline for discharging gas sequentially passes through the sewer, the reservoir, and the noise reduction pool, and the air outlet of the pressure relief pipeline is located at the bottom of the noise reduction pool. The disclosed invention realizes the sound insulation and noise reduction effect of the noise during pressure relief gas through the three-layer structure of the sewer, the reservoir, and the noise reduction pool and the cooperation of the closed design. And it is hidden in the sewer, so that the design of the disclosed invention's noise reduction device does not affect the overall appearance.

[0004] However, the disclosed invention has the following disadvantages: 1) It is only applicable to environments with sewers, and has high requirements for the working environment; 2) It is necessary to dig a pit at the bottom of the sewer to install the reservoir and the noise reduction pool, which has certain construction costs; 3) The sewer will emit odors, resulting in a poor working environment; 4) There are many sundries in the sewer, which are easy to block the pressure relief pipeline. Summary of the Invention

[0005] The object of the present invention is to overcome the deficiencies in the prior art and provide a pressure vessel air leakage detection system. The bottom of the first water tank is hermetically connected to the top of the second water tank. There is a first gap between the periphery of the noise reduction pool and the periphery of the second water tank, and a second gap between the bottom of the noise reduction pool and the bottom of the second water tank, so that the first water tank and the noise reduction pool form a closed design cooperation, improving the noise reduction effect. The first pipeline, the second pipeline, the first water pump and the second water pump cooperate to make the water in the first water tank and the water in the second water tank circulate. The key is to make the water in the first water tank flow. A water surface sound insulation layer will be formed between the noise reduction pool and the first water tank, increasing the sound insulation and noise reduction effect. The present invention can be applied to most working environments and has low requirements for the working environment. There is no need to change the working environment and there is no construction cost. The water in the first water tank and the second water tank is relatively clear and will not block the pressure relief pipeline.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A pressure vessel air leakage detection system, including a noise reduction device, the noise reduction device includes an upper structure, a lower structure and a pressure relief pipeline. The upper structure includes a first water tank, and the lower structure includes a noise reduction pool and a second water tank. The noise reduction pool is installed in the second water tank. The top of the noise reduction pool is communicated with the bottom of the first water tank. The bottom of the first water tank is hermetically connected to the top of the second water tank. There is a first gap between the periphery of the noise reduction pool and the periphery of the second water tank, and a second gap between the bottom of the noise reduction pool and the bottom of the second water tank. There is a first pipeline between one side of the first water tank and one side of the second water tank, and a first water pump is provided on the first pipeline. There is a second pipeline between the opposite side of the first water tank and the opposite side of the second water tank, and a second water pump is provided on the second pipeline. The pressure relief pipeline is inserted into the noise reduction pool from the inside of the first water tank, and the air outlet of the pressure relief pipeline is located at the bottom of the noise reduction pool.

[0008] Further, the lower structure further includes a reservoir with openings at both the upper and lower ends. The top of the reservoir is communicated with the bottom of the first water tank, and the bottom of the reservoir is communicated with the top of the noise reduction pool. The width of the reservoir is greater than the width of the noise reduction pool.

[0009] Further, the top of the first water tank is provided with a sealing cover, and the sealing cover is provided with a threaded through hole, and a plug is threadedly connected to the threaded through hole.

[0010] Further, the connections of the first pipeline and the second pipeline to the first water tank are respectively located at the top end of the side wall of the first water tank, and the connections of the first pipeline and the second pipeline to the second water tank are respectively located at the top end of the side wall of the second water tank.

[0011] Further, the first water tank, the reservoir and the noise reduction tank are processed by an integral molding method.

[0012] Further, a first cover plate is provided at the connection between the first water tank and the reservoir. The first cover plate is provided with a number of first exhaust and water inlet holes. A second cover plate is provided at the connection between the reservoir and the noise reduction tank. The second cover plate is provided with a number of second exhaust and water inlet holes. The size of the second exhaust and water inlet holes is larger than that of the first exhaust and water inlet holes.

[0013] Further, the pressure relief pipeline sequentially penetrates through the first cover plate and the second cover plate, and the first cover plate and the second cover plate are respectively fixedly connected to the pressure relief pipeline.

[0014] Further, the pressure vessel air leakage detection system further includes a detection device. The detection device includes a lifting mechanism, a detection mechanism and a fixing mechanism. The lifting mechanism and the fixing mechanism are connected and installed. The detection mechanism is located below the lifting mechanism. The lifting mechanism is used to send the detection product into the detection mechanism or take the detection product out of the detection mechanism. The fixing mechanism is used to fixedly install the detection product to realize detection.

[0015] Further, the lifting mechanism includes a control box, a lifting cylinder, a lifting guide post and a lifting cross bar. The control box controls the lifting cylinder. The lifting cylinder drives the lifting cross bar to lift through the lifting guide post. The detection mechanism includes a detection box frame. The detection box frame includes detection liquid. The fixing mechanism is a quick connector. An air hole is provided in the lifting cross bar. The air hole penetrates through the opposite end faces of the lifting cross bar. Solenoid valves are respectively provided at the opposite ends of the air hole. The solenoid valves are connected to the control box. One side of the air hole is connected to the pressure relief pipeline. A detection product fixing pipe is connected to the side surface of the air hole through a quick connector. The detection product fixing pipe is inserted into the detection product and fixedly connected to the detection product.

[0016] The beneficial effects of the present invention are as follows:

[0017] The bottom of the first water tank is hermetically connected to the top of the second water tank. A first gap is provided between the periphery of the noise reduction tank and the periphery of the second water tank. A second gap is provided between the bottom of the noise reduction tank and the bottom of the second water tank. This makes the first water tank and the noise reduction tank form a closed design cooperation, improving the noise reduction effect;

[0018] The first pipeline, the second pipeline, the first water pump and the second water pump cooperate to make the water in the first water tank and the water in the second water tank circulate. The key is to make the water in the first water tank flow. A water surface sound insulation layer will be formed between the noise reduction tank and the first water tank, increasing the sound insulation and noise reduction effect;

[0019] The present invention can be applied to most working environments and has low requirements for the working environment;

[0020] There is no need to change the working environment and there are no construction costs;

[0021] The water in the first water tank and the second water tank is relatively clear and will not block the pressure relief pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG Figure 1 is a schematic structural diagram of a noise reduction device in a pressure vessel air leakage detection system of the present invention;

[0023] FIG Figure 2 is Figure 1 a partial enlarged view of A in

[0024] FIG Figure 3 is Figure 1 a partial enlarged view of B in

[0025] FIG Figure 4 is a schematic structural diagram of a pressure vessel air leakage detection system of the present invention;

[0026] FIG Figure 5 is Figure 4 a partial enlarged view of C in

[0027] In the figure: 1, noise reduction device; 11, pressure relief pipeline; 12, first water tank; 13, noise reduction pool; 14, second water tank; 15, first gap; 16, second gap; 17, first pipeline; 18, second pipeline; 19, first water pump; 110, second water pump; 111, reservoir; 112, sealing cover; 113, plug; 114, first cover plate; 115, second cover plate; 116, first exhaust and water inlet hole; 117, second exhaust and water inlet hole; 2, detection device; 21, control box; 22, lifting cylinder; 23, lifting guide post; 24, lifting cross bar; 25, detection box frame; 26, detection liquid; 27, fixing mechanism; 28, air hole; 29, detection product fixing tube; 210, solenoid valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the Figures 1-5 drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0030] The present invention provides a leakage detection system for a pressure vessel.

[0031] A leakage detection system for a pressure vessel includes a noise reduction device 1. The noise reduction device 1 includes an upper structure (not labeled), a lower structure (not labeled), and a pressure relief pipe 11. The upper structure includes a first water tank 12, and the lower structure includes a noise reduction pool 13 and a second water tank 14. The noise reduction pool 13 is installed inside the second water tank 14. The top of the noise reduction pool 13 is communicated with the bottom of the first water tank 12. The bottom of the first water tank 12 is hermetically connected to the top of the second water tank 14. A first gap 15 is provided between the peripheries of the noise reduction pool 13 and the second water tank 14, and a second gap 16 is provided between the bottom of the noise reduction pool 13 and the bottom of the second water tank 14. A first pipe 17 is provided between one side of the first water tank 12 and one side of the second water tank 14. A first water pump 19 is provided on the first pipe 17. A second pipe 18 is provided between the opposite side of the first water tank 12 and the opposite side of the second water tank 14. A second water pump 110 is provided on the second pipe 18. The pressure relief pipe 11 is inserted into the noise reduction pool 13 from inside the first water tank 12, and the air outlet of the pressure relief pipe 11 is located at the bottom of the noise reduction pool 13.

[0032] In the technical solution proposed in this application, the bottom of the first water tank 12 is hermetically connected to the top of the second water tank 14. A first gap 15 is provided between the peripheries of the noise reduction pool 13 and the second water tank 14, and a second gap 16 is provided between the bottom of the noise reduction pool 13 and the bottom of the second water tank 14, enabling a closed design cooperation between the first water tank 12 and the noise reduction pool 13, improving the noise reduction effect; the cooperation of the first pipe 17, the second pipe 18, the first water pump 19, and the second water pump 110 causes the water in the first water tank 12 and the water in the second water tank 14 to circulate. The key is that the water in the first water tank 12 can flow, and a water surface sound insulation layer (not shown in the figure) will be formed between the noise reduction pool 13 and the first water tank 12, increasing the sound insulation and noise reduction effect; the present invention can be applied to most working environments with relatively low requirements for the working environment; there is no need to change the working environment and there is no construction cost; the water in the first water tank 12 and the second water tank 14 is relatively clear and will not block the pressure relief pipe 11.

[0033] The lower layer structure further includes a reservoir 111 with openings at both the upper and lower ends. The top of the reservoir 111 is connected to the bottom of the first water tank 12, and the bottom of the reservoir 111 is connected to the top of the noise reduction tank 13. The width of the reservoir 111 is greater than the width of the noise reduction tank 13. In a specific embodiment, there is a gap (not marked) between the periphery of the reservoir 111 and the second water tank 14. The greater width of the reservoir 111 than that of the noise reduction tank 13 can ensure that there is enough water in the noise reduction tank 13, thus ensuring the minimum noise reduction effect.

[0034] The top of the first water tank 12 is provided with a sealing cover 112, and the sealing cover 112 is provided with a threaded through hole (not marked), and a plug 113 is threadedly connected to the threaded through hole. The design of the sealing cover 112 can prevent the water in the first water tank 12 from spilling out, and the design of the threaded through hole facilitates adding water into the first water tank 12.

[0035] The connections of the first pipeline 17 and the second pipeline 18 with the first water tank 12 are respectively located at the top ends of the side walls of the first water tank 12, and the connections of the first pipeline 17 and the second pipeline 18 with the second water tank 14 are respectively located at the top ends of the side walls of the second water tank 14.

[0036] The first water tank 12, the reservoir 111 and the noise reduction tank 13 are processed by an integral molding method. Using the integral molding method for processing can make the sealing between the first water tank 12 and the reservoir 111, and between the reservoir 111 and the noise reduction tank 13 better.

[0037] A first cover plate 114 is provided at the connection between the first water tank 12 and the reservoir 111. The first cover plate 114 is provided with a number of first exhaust and water inlet holes 116. A second cover plate 115 is provided at the connection between the reservoir 111 and the noise reduction tank 13. The second cover plate 115 is provided with a number of second exhaust and water inlet holes 117. The size of the second exhaust and water inlet holes 117 is larger than that of the first exhaust and water inlet holes 116. Both the first cover plate 114 and the second cover plate 115 can play a role in sound insulation and noise reduction. After the gas enters the noise reduction tank 13 from the pressure relief pipeline, when the gas is released and sprayed upward, through the dispersion of the larger second exhaust and water inlet holes 117 reserved on the second cover plate 115, multiple larger bubbles are formed, and then through the further dispersion of the first exhaust and intake holes 116 reserved on the first cover plate 114, countless smaller bubbles are formed. When reaching the water surface in the first water tank 12, a dull sound is emitted to complete the noise reduction.

[0038] The pressure relief pipeline 11 sequentially penetrates through the first cover plate 114 and the second cover plate 115, and the first cover plate 114 and the second cover plate 115 are respectively fixedly connected to the pressure relief pipeline 11. In a specific embodiment, the pressure relief pipeline 11 can be divided into two parts. One part is fixedly connected to the first cover plate 114 and the second cover plate 115, and the other part is detachably connected to this part, which facilitates the packaging and transportation of the present invention.

[0039] The pressure vessel air leakage detection system further includes a detection device 2. The detection device 2 includes a lifting mechanism (not labeled), a detection mechanism (not labeled), and a fixing mechanism 27. The lifting mechanism and the fixing mechanism are connected and installed. The detection mechanism is located below the lifting mechanism. The lifting mechanism is used to send the detection product into the detection mechanism or take the detection product out of the detection mechanism. The fixing mechanism is used to fixedly install the detection product to achieve detection. The lifting mechanism includes a control box 21, a lifting cylinder 22, lifting guide columns 23, and a lifting cross bar 24. The control box 21 controls the lifting cylinder 22. The lifting cylinder 22 drives the lifting cross bar 24 to lift through the lifting guide columns 23. The detection mechanism includes a detection box frame 25. The detection box frame 25 includes a detection liquid 26. The fixing mechanism is a quick connector. An air hole 28 is provided in the lifting cross bar 24. The air hole 28 penetrates through the opposite end faces of the lifting cross bar 24. Solenoid valves 210 are respectively provided at the opposite ends of the air hole 28. The solenoid valves 210 are connected to the control box 21. One side of the air hole 28 is connected to a pressure relief pipeline 11. A detection product fixing tube 29 is connected to the side of the air hole 28 through a quick connector. The detection product fixing tube 29 is inserted into the detection product and fixedly connected to the detection product. The specific working principle of the detection device 2 can refer to the published literature mentioned in the background technology and will not be elaborated here.

[0040] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as they do not deviate from the structure of the invention or exceed the scope defined by this claim book, they should fall within the protection scope of the present invention.

Claims

1. A pressure vessel air leakage detection system, characterized in that It includes a noise reduction device, which includes an upper structure, a lower structure and a pressure relief pipeline. The upper structure includes a first water tank, the lower structure includes a noise reduction pool and a second water tank. The noise reduction pool is installed in the second water tank. The top of the noise reduction pool is communicated with the bottom of the first water tank. The bottom of the first water tank is hermetically connected to the top of the second water tank. A first gap is provided between the periphery of the noise reduction pool and the periphery of the second water tank. A second gap is provided between the bottom of the noise reduction pool and the bottom of the second water tank. A first pipeline is provided between one side of the first water tank and one side of the second water tank. A first water pump is provided on the first pipeline. A second pipeline is provided between the opposite side of the first water tank and the opposite side of the second water tank. A second water pump is provided on the second pipeline. The pressure relief pipeline is inserted into the noise reduction pool from the inside of the first water tank, and the air outlet of the pressure relief pipeline is located at the bottom of the noise reduction pool; A sealing cover is provided on the top of the first water tank, and a threaded through hole is provided on the sealing cover, and a plug is threadedly connected to the threaded through hole; The connection parts of the first pipeline and the second pipeline with the first water tank are respectively located at the top end of the side wall of the first water tank, and the connection parts of the first pipeline and the second pipeline with the second water tank are respectively located at the top end of the side wall of the second water tank; A first cover plate is provided at the connection part between the first water tank and the reservoir. The first cover plate is provided with a plurality of first exhaust and water inlet holes. A second cover plate is provided at the connection part between the reservoir and the noise reduction pool. The second cover plate is provided with a plurality of second exhaust and water inlet holes. The size of the second exhaust and water inlet holes is larger than the size of the first exhaust and water inlet holes.

2. The leak detection system for a pressure vessel according to claim 1, wherein, The lower structure further includes a reservoir with both upper and lower ends open. The top of the reservoir is communicated with the bottom of the first water tank, and the bottom of the reservoir is communicated with the top of the noise reduction pool. The width of the reservoir is larger than the width of the noise reduction pool.

3. A pressure vessel air leakage detection system according to claim 2, characterized in that, The first water tank, the reservoir and the noise reduction pool are processed by an integral molding method.

4. A pressure vessel air leakage detection system according to claim 3, characterized in that, The pressure relief pipeline sequentially penetrates through the first cover plate and the second cover plate, and the first cover plate and the second cover plate are respectively fixedly connected to the pressure relief pipeline.

5. A pressure vessel air leakage detection system according to claim 4, characterized in that, The pressure vessel air leakage detection system further includes a detection device, which includes a lifting mechanism, a detection mechanism and a fixing mechanism. The lifting mechanism and the fixing mechanism are connected and installed. The detection mechanism is located below the lifting mechanism. The lifting mechanism is used to send the detection product into the detection mechanism or take the detection product out of the detection mechanism. The fixing mechanism is used to fixedly install the detection product to realize detection.

6. The leak detection system for a pressure vessel according to claim 5, wherein The lifting mechanism includes a control box, a lifting cylinder, lifting guide columns and a lifting cross bar. The control box controls the lifting cylinder, and the lifting cylinder drives the lifting cross bar to lift through the lifting guide columns. The detection mechanism includes a detection box frame, and the detection box frame includes a detection liquid. The fixing mechanism is a quick connector. There are air holes in the lifting cross bar, and the air holes penetrate through the opposite end faces of the lifting cross bar. Solenoid valves are respectively arranged at the opposite ends of the air holes, and the solenoid valves are connected to the control box. One side of the air hole is connected to a pressure relief pipeline, and a detection product fixing pipe is connected to the side surface of the air hole through a quick connector. The detection product fixing pipe is inserted into the detection product and fixedly connected to the detection product.

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