Water jacket and gas cylinder detection system

Abstract

The utility model provides a water jacket which is used for containing a gas cylinder to be detected and comprises a cylinder body and a cover plate, an opening for placing the gas cylinder is formed in the top of the cylinder body, a cover plate groove is formed in the opening, and the cover plate can be locked in the cover plate groove to seal the opening; the barrel body is provided with a liquid injection port for injecting liquid and a liquid overflow port for communicating with a liquid overflow pipeline; the cover plate is provided with a pressurizing opening used for being communicated with the gas cylinder. According to the water jacket disclosed by the utility model, the cylinder body can be conveniently opened when the gas cylinder is taken and placed, the cover plate can be firmly fixed and locked in the cover plate groove, and the water jacket is suitable for detecting the pressure-bearing performance of the gas cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of container detection, in particular to a water jacket; in addition, the utility model also relates to a gas cylinder detection system. Background Art

[0002] In various fields such as industry and transportation, gas cylinders that can hold high-pressure gases are required. For example, in a fuel cell hydrogen storage system, a hydrogen storage tank (hydrogen storage cylinder) must be carried, which is equivalent to the fuel tank equipped on a car. The safety of the hydrogen storage cylinder is the top priority of the entire fuel cell system. In order to ensure the safe use of hydrogen storage cylinders on the road, hydrogen storage cylinders must comply with relevant standards and specifications. For example, in China's national standard GB / T 42626, it is required that hydrogen storage cylinders must be subjected to an external water pressure test at least once every three years.

[0003] However, there is no mature test system for batch testing of gas cylinders. When testing the pressure bearing performance of hydrogen storage cylinders, each hydrogen storage cylinder needs to be tested one by one, resulting in a huge workload and low testing efficiency.

[0004] At the same time, the existing water jacket for gas cylinder inspection has a relatively simple structure, and there are many inconveniences when inserting the gas cylinder for sealing operation. It is necessary to develop and improve the relevant structure of the existing water jacket. Utility Model Content

[0005] In view of this, the utility model aims to propose a water jacket, so as to provide a water jacket structure suitable for testing the pressure bearing performance of a gas cylinder.

[0006] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0007] A water jacket is used to hold a gas cylinder to be tested, the water jacket comprising a cylinder and a cover plate; an opening for placing the gas cylinder is provided on the top of the cylinder, and a cover plate groove is formed at the opening, and the cover plate can be locked in the cover plate groove to close the opening; a liquid filling port and a liquid overflow port are provided on the cylinder; a pressurizing port for connecting to the gas cylinder is provided on the cover plate.

[0008] Furthermore, a drain port for discharging the liquid in the water jacket is provided at the bottom of the cylinder, and / or an abnormal liquid leakage port blocked by a bursting disc is provided on the cylinder, and / or an exhaust port is provided on the cover plate.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The water jacket of the utility model is convenient for opening the cylinder body when taking out and releasing the gas cylinder, and can also firmly lock the cover plate in the cover plate groove, which is suitable for testing the pressure bearing performance of the gas cylinder. In addition, the arrangement of the cover plate and the cover plate groove not only facilitates opening the cylinder body when taking out and releasing the gas cylinder, but also can firmly lock the cover plate in the cover plate groove to achieve the sealing of the cylinder body. A sealing gasket is also provided between the cover plate and the cylinder body to ensure the sealing effect of the cover plate.

[0011] Another object of the utility model is to provide a gas cylinder detection system, comprising a liquid supply unit, a measuring unit, and a plurality of water jackets described in the utility model, wherein the plurality of gas cylinders to be detected are placed in each of the water jackets respectively; the liquid supply unit is connected with each of the pressurizing ports through a liquid inlet pipeline, and can simultaneously supply a first liquid of a set pressure into each of the gas cylinders; each of the water jackets is airtightly arranged, and is filled with a second liquid through the liquid filling port; each of the water jackets is connected to the measuring unit through the overflow port and the corresponding overflow pipeline, and can overflow the second liquid filled inside; the gas cylinder is deformed by the pressure of the first liquid, so that the second liquid in the water jacket overflows through the corresponding overflow pipeline, and the measuring unit can respectively measure the amount of the second liquid overflowed from each of the overflow pipelines.

[0012] Furthermore, the liquid supply unit includes a liquid supply pipeline, and a first liquid supply branch and a second liquid supply branch branching from the end of the liquid supply pipeline; the first liquid supply branch and the second liquid supply branch are both controllably connected to the liquid inlet pipeline, and a pressure pump is provided on the second liquid supply branch.

[0013] Furthermore, the second liquid supply branch is connected to the liquid inlet pipeline through a plurality of passages arranged in parallel, and the booster pump is provided on each of the passages.

[0014] Furthermore, it also includes a liquid discharge pipeline, and the first liquid supply branch and the second liquid supply branch are connected to the liquid discharge pipeline through a first safety valve and a second safety valve respectively.

[0015] Furthermore, relative to one end connected to the liquid supply pipeline, the other end of the liquid inlet pipeline branches out into a pressure main pipe and a pressure relief pipe; the pressure main pipe is connected to each of the gas cylinders through a plurality of pressure branch pipes, and each of the pressure branch pipes is provided with a throttle valve; the pressure relief pipe is connected to the discharge pipeline in a controllable manner.

[0016] Furthermore, along the flow direction of the liquid in the liquid supply pipeline, a main valve, a first pressure regulating valve, a first one-way valve and a filter are sequentially arranged on the liquid supply pipeline.

[0017] Furthermore, it also includes a liquid injection branch branched from the end of the liquid supply pipeline, the liquid injection branch is connected to each of the water jackets through a plurality of branches, and each of the branches is provided with a liquid injection valve.

[0018] Furthermore, the measuring unit includes a plurality of measuring tools arranged corresponding to each of the overflow pipelines; the measuring tools include a container for receiving the second liquid flowing out of the overflow pipeline, and an electronic balance for weighing the container.

[0019] Compared with the prior art, the gas cylinder detection system of the utility model has the following advantages:

[0020] The gas cylinder detection system of the utility model can test the air tightness and pressure bearing performance of multiple gas cylinders at one time by using multiple water jackets arranged in the system; by pressurizing a first liquid in the gas cylinder to make it expand and deform, the water jacket filled with a second liquid will overflow the second liquid to the measuring unit; by respectively measuring the volume or weight of the second liquid flowing out of each water jacket liquid, the expansion deformation degree of the corresponding gas cylinder can be calculated, thereby providing a system solution for batch detection of the pressure bearing performance of gas cylinders.

[0021] In addition, by setting up two liquid supply branches, the first liquid supply branch and the second liquid supply branch, when the pressure of the first liquid provided by the liquid supply pipeline meets the set pressure requirement, the first liquid supply branch can be used to pressure test each gas cylinder; when the pressure of the first liquid provided by the liquid supply pipeline is lower than the set pressure requirement, the pressure pump on the second liquid supply branch can be used to increase the liquid supply pressure of the first liquid, thereby making the pressure test of each gas cylinder more flexible and efficient.

[0022] In addition, each set of measuring tools in the measuring unit adopts the combination of container and electronic balance, which can obtain the weight of the overflowing liquid of each water jacket in real time and transmit it to the computer in real time, so as to quickly calculate the deformation value and deformation rate of each gas cylinder through the computer. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which constitute part of the present invention, are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention. The directional terms such as front and back, top and bottom involved therein are only used to indicate relative positional relationships and do not constitute improper limitations on the present invention. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the principle of the gas cylinder detection system according to an embodiment of the utility model;

[0025] Figure 2 It is a three-dimensional schematic diagram of the water jacket described in the embodiment of the utility model;

[0026] Figure 3It is a three-dimensional schematic diagram of the water jacket described in the embodiment of the utility model from another viewing angle.

[0027] Description of reference numerals:

[0028] 1. Liquid supply pipeline; 10. Liquid supply port; 101. Main valve; 102. First pressure regulating valve; 103. First non-return valve; 104. Filter; 11. First liquid supply branch; 110. First on-off control valve; 111. First safety valve; 112. Second non-return valve; 12. Second liquid supply branch; 120. Second on-off control valve; 121. Second safety valve; 122. First booster pump; 123. Second booster pump; 13. Liquid injection branch; 130. Master control valve; 131. First injection valve; 132. Second injection valve; 133. Third injection valve; 134. Fourth injection valve;

[0029] 2. Liquid inlet pipeline; 20. Pressurized main pipe; 201. First throttle valve; 202. Second throttle valve; 203. Third throttle valve; 204. Fourth throttle valve; 21. Pressure relief pipe; 210. Fifth throttle valve; 211. First pressure relief control valve; 212. Sixth throttle valve; 213. Second pressure relief control valve;

[0030] 3. Drainage pipeline; 30. Drainage port;

[0031] 4. Water jacket; 40. Cylinder; 400. Base; 401. Liquid injection port; 402. Overflow port; 403. Abnormal liquid discharge port; 405. Cover plate groove; 406. Drain port; 41. First water jacket; 410. First drain valve; 42. Second water jacket; 420. Second drain valve; 43. Third water jacket; 430. Third drain valve; 44. Fourth water jacket; 440. Fourth drain valve; 45. Cover plate; 450. Exhaust port; 451. Pressurization port; 452. Suspension rod; 46. Sealing pad; 47. Locking mechanism;

[0032] 51, the first gas cylinder to be inspected; 52, the second gas cylinder to be inspected; 53, the third gas cylinder to be inspected; 54, the fourth gas cylinder to be inspected;

[0033] 60, overflow pipeline; 601, first overflow pipe; 602, second overflow pipe; 603, third overflow pipe; 604, fourth overflow pipe; 61, first measuring tool; 610, first electronic balance; 62, second measuring tool; 620, second electronic balance; 63, third measuring tool; 630, third electronic balance; 64, fourth measuring tool; 640, fourth electronic balance;

[0034] 7. Air control unit; 70. Air source; 700. Air control pipeline; 71. Air storage tank; 710. Exhaust valve; 72. Second pressure regulating valve. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present invention, it should be stated that if there are terms indicating directions or positional relationships such as "up, down, left, right, front, back, inside, outside", etc., they are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed or operate in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installed", "connected", "connection", and "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific circumstances. The limiting terms such as "first, second, A, B, C, D" that appear in the description of the present utility model are only used to distinguish similar features of different positions, attributes or uses, so as to achieve the purpose of avoiding ambiguity and confusion in the description, and cannot be understood as indicating or implying relative importance.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] The present embodiment relates to a water jacket 4 and a gas cylinder detection system using the water jacket 4, thereby providing a water jacket structure suitable for testing the pressure bearing performance of gas cylinders, and the gas cylinder detection system can batch test the pressure bearing performance of gas cylinders; an exemplary system structure and principle of the gas cylinder detection system are as follows: Figure 1 As shown, an exemplary structure of the water jacket 4 is as follows Figure 2 and Figure 3 shown.

[0040] In order to better understand the usage scenarios of the water jacket 4, the composition of the gas cylinder detection system of the present invention is firstly described.

[0041] In general, the gas cylinder detection system includes a liquid supply unit, a measuring unit, and a plurality of water jackets 4, wherein the gas cylinders to be detected are placed in each water jacket 4. The liquid supply unit is connected to the pressurization port 451 of each gas cylinder through the liquid inlet pipeline 2, and can simultaneously supply the first liquid of set pressure to each gas cylinder; each water jacket 4 is sealed, and is filled with the second liquid through the liquid injection port 401 to ensure that each water jacket 4 is filled with the second liquid during the test; each water jacket 4 is connected to the measuring unit through the overflow port 402 and the corresponding overflow pipeline 60, and can overflow the second liquid filled inside; the gas cylinder is deformed by the pressure of the first liquid, so that the second liquid in the water jacket 4 overflows through the corresponding overflow pipeline 60, and the measuring unit can measure the amount of the second liquid overflowing from each overflow pipeline 60.

[0042] It should be pointed out that, based on the above-mentioned overall design concept, the technical solution of the utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned water jacket 4 can adopt a variety of different specific structural forms; the pipeline configuration, device mode, etc. of the liquid supply pipeline 1 can also be flexibly adjusted. For the parts required for the implementation of the overall solution but not involved in the above-mentioned overall setting, reasonable and flexible design can be made with reference to the mature setting means in the field, the actual situation during implementation, etc. The specific implementation scheme described below in this embodiment is only one of the better solutions that can be formed by the above-mentioned various combinations and their variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements based on the actual situation. Obviously, the many solutions that can be formed by the above-mentioned combinations and their variations, as well as the specific implementation scheme of this embodiment, are all within the protection scope of the utility model.

[0043] Specifically, in this embodiment, the liquid supply unit includes a liquid supply pipeline 1, and a first liquid supply branch 11 and a second liquid supply branch 12 branching from the end of the liquid supply pipeline 1. In addition, the first liquid supply branch 11 and the second liquid supply branch 12 are both connected to the liquid inlet pipeline 2 in an on-off controllable manner, and a pressure pump is provided on the second liquid supply branch 12.

[0044] By setting up a first liquid supply branch 11 and a second liquid supply branch 12 to connect the liquid inlet pipeline 2, high-pressure liquid can be supplied into the gas cylinder to be tested respectively to test the pressure-bearing performance of the gas cylinder; when the pressure of the first liquid provided by the liquid supply pipeline 1 meets the set pressure requirement, the first liquid supply branch 11 can be used to pressurize each gas cylinder for testing; when the pressure of the first liquid provided by the liquid supply pipeline 1 is lower than the set pressure requirement, the pressure pump on the second liquid supply branch 12 can be used to increase the liquid supply pressure of the first liquid, thereby making the pressure test of each gas cylinder more flexible and efficient. The on-off control of the first liquid supply branch 11 and the second liquid supply branch 12 can of course be achieved by setting a control valve; in the present embodiment, a first on-off control valve 110 and a second one-way valve 112 are provided on the first liquid supply branch 11, and a second on-off control valve 120 is provided on the second liquid supply branch 12; wherein, the second one-way valve 112 can prevent the liquid from flowing back to the liquid supply pipeline 1 through the first liquid supply branch 11 when the second liquid supply branch 12 is pressurized to supply liquid; the first on-off control valve 110 and the second on-off control valve 120 are preferably air-controlled valves.

[0045] Based on the above-mentioned configuration, the second liquid supply branch 12 of this embodiment is connected to the liquid inlet pipeline 2 through multiple passages arranged in parallel, and each passage is provided with a booster pump. Multiple passages are arranged in parallel between the second liquid supply branch 12 and the liquid inlet pipeline 2, and a booster pump is arranged on each passage, which can realize the redundant configuration of the booster station and improve the reliability of the system. In this embodiment, a dual booster pump four-station configuration mode is adopted, with four passages arranged in parallel, and the four passages are arranged in groups of two; each group of passages is provided with a pneumatic dual-channel booster pump, such as Figure 1 As shown in the figure, there are the first booster pump 122 and the second booster pump 123 respectively; and, air control valves are provided on the two liquid outlet passages of the first booster pump 122 and the second booster pump 123; the two booster pumps can pressurize in turn, pressurize together, or operate alone, thereby increasing the reliability of system operation and helping to improve test efficiency.

[0046] In addition, Figure 1 As shown, the gas cylinder detection system of this embodiment also includes a liquid discharge pipeline 3, and the first liquid supply branch 11 and the second liquid supply branch 12 are connected to the liquid discharge pipeline 3 through the first safety valve 111 and the second safety valve 121 respectively. The first liquid supply branch 11 and the second liquid supply branch 12 are connected to the liquid discharge pipeline 3 through the safety valves respectively, and when the liquid pressure in the first liquid supply branch 11 or the second liquid supply branch 12 is too high, the pressure can be released by the conduction of the safety valve to achieve safe discharge of the high-pressure liquid in the pipeline, thereby improving the safety of the system.

[0047] There are, of course, a variety of configurations for the specific connection between the liquid inlet pipeline 2 and each gas cylinder. In this embodiment, relative to one end connected to the liquid supply pipeline 1, the other end of the liquid inlet pipeline 2 branches into a pressurized main pipe 20 and a pressure relief pipe 21. Among them, the pressurized main pipe 20 is connected to each gas cylinder through a plurality of pressurized branch pipes, and each pressurized branch pipe is provided with a throttle valve; the pressure relief pipe 21 is connected to the discharge pipeline 3 in a controllable manner. The specific number of water jackets 4 and gas cylinders can, of course, be flexibly set. In this embodiment, four water jackets 4 are configured in the gas cylinder detection system as an example for explanation. Figure 1 As shown in the figure, the four water jackets 4 are respectively the first water jacket 41, the second water jacket 42, the third water jacket 43 and the fourth water jacket 44; correspondingly, the four gas cylinders to be inspected are respectively the first gas cylinder 51 to be inspected located in the first water jacket 41, the second gas cylinder 52 to be inspected located in the second water jacket 42, the third gas cylinder 53 to be inspected located in the third water jacket 43, and the fourth gas cylinder 54 to be inspected located in the fourth water jacket 44. The above-mentioned pressurized branch pipes are also correspondingly four, and the first throttle valve 201, the second throttle valve 202, the third throttle valve 203 and the fourth throttle valve 204 are respectively installed on the four pressurized branch pipes.

[0048] By respectively setting throttle valves on each pressurization branch pipe of the pressurization main pipe 20, the pressurization speed of each gas cylinder can be flexibly controlled; for example, when the volumes of each gas cylinder are different, by adjusting the flow rate of each throttle valve, the pressurization completion time of each gas cylinder can be made more consistent, so that the measuring unit can measure the detection data of each gas cylinder at the same time. The setting of the pressure relief pipe 21 can discharge the liquid in each gas cylinder by connecting the pressure relief pipe 21 after completing the pressurization detection of each gas cylinder, thereby improving the reuse efficiency of the system. In this embodiment, the pressure relief pipe 21 is connected to the drainage pipeline 3 through two branch pipelines arranged in parallel, such as Figure 1 As shown in FIG, a fifth throttle valve 210 and a first pressure relief control valve 211 are provided on one branch pipeline, and a sixth throttle valve 212 and a second pressure relief control valve 213 are provided on another branch pipeline; wherein the first pressure relief control valve 211 and the second pressure relief control valve 213 are both gas-controlled valves. The liquid discharged from the pressure relief pipe 21, or from the first safety valve 111 on the first liquid supply branch 11, and from the second safety valve 121 on the second liquid supply branch 12 enters the liquid discharge pipeline 3, and is discharged to the outside of the system from the liquid discharge port 30 at the end of the liquid discharge pipeline 3.

[0049] In addition, in this embodiment, along the flow direction of the liquid in the liquid supply pipeline 1, the main valve 101, the first pressure regulating valve 102, the first check valve 103 and the filter 104 are sequentially arranged on the liquid supply pipeline 1. The liquid supply port 10 of the liquid supply pipeline 1 is used to connect the liquid supply source, which can be a liquid supply source at normal pressure or with a certain pressure; for example, it can be connected to a municipal water supply pipeline. The main valve 101, the first pressure regulating valve 102, the first check valve 103 and the filter 104 are arranged on the liquid supply pipeline 1, which can flexibly control the on and off of the liquid supply, adjust the liquid supply pressure, prevent the liquid from flowing back, and filter impurities in the liquid supply. It should be pointed out here that the liquid supplied can be water or other liquids, such as hydraulic oil; the first liquid and the second liquid mentioned above can use two liquids respectively, or can use a common liquid. In this embodiment, the first liquid and the second liquid are both provided by the liquid supply pipeline 1 connected to the water source, so the same liquid, water, is used.

[0050] In order to more conveniently inject liquid into each water jacket 4, the gas cylinder detection system of this embodiment also includes an injection branch 13 branched from the end of the liquid supply pipeline 1. The injection branch 13 is connected to each water jacket 4 through multiple branches, and each branch is provided with an injection valve. Specifically, the multiple branches of the injection branch 13 are four branches corresponding to the four water jackets 4, each of which is provided with a first injection valve 131, a second injection valve 132, a third injection valve 133 and a fourth injection valve 134; at the same time, a master control valve 130 can also be provided on the injection branch 13. As mentioned above, the injection of the water jacket 4 and the pressurization of the gas cylinder both use the water provided by the liquid supply pipeline 1, which can greatly save the configuration of the pipeline. By branching the injection branch 13 at the end of the liquid supply pipeline 1 and using the injection valves on the multiple branches of the injection branch 13, the injection operation of each water jacket 4 can be flexibly realized.

[0051] It should be pointed out that the measuring unit has various means to measure the amount of overflowed liquid from each overflow pipe 60; for example, multiple measuring cylinders can be provided to receive the overflowed liquid from each overflow pipe 60, so as to obtain the volume of the overflowed liquid from each water jacket 4. In this embodiment, the measuring unit includes multiple sets of measuring tools corresponding to each overflow pipe 60; each set of measuring tools specifically includes a container for receiving the second liquid flowing out of the overflow pipe 60, and an electronic balance for weighing the container. Each set of measuring tools adopts the combination of a container and an electronic balance, which can obtain the weight of the overflowed liquid from each water jacket 4 in real time, and facilitate real-time transmission to a computer, so as to quickly calculate and measure the deformation value and deformation rate of each gas cylinder through a computer.

[0052] like Figure 1As shown in , corresponding to the four water jackets 4, the measuring unit of this embodiment is configured with four sets of measuring tools, specifically a first measuring tool 61, a second measuring tool 62, a third measuring tool 63 and a fourth measuring tool 64; a first electronic balance 610 is provided in the first measuring tool 61, a second electronic balance 620 is provided in the second measuring tool 62, a third electronic balance 630 is provided in the third measuring tool 63, and a fourth electronic balance 640 is provided in the fourth measuring tool 64; accordingly, the above-mentioned overflow pipeline 60 includes a first overflow pipe 601 connected between the first water jacket 41 and the container of the first measuring tool 61, a second overflow pipe 602 connected between the second water jacket 42 and the container of the second measuring tool 62, a third overflow pipe 603 connected between the third water jacket 43 and the container of the third measuring tool 63, and a fourth overflow pipe 604 connected between the fourth water jacket 44 and the container of the fourth measuring tool 64.

[0053] For the water jacket 4 of the present invention, there are of course many design schemes for its structure. Figure 2 , Figure 3 As shown, the water jacket 4 of this embodiment includes a cylinder 40 and a cover plate 45; the top of the cylinder 40 is provided with an opening for placing the gas cylinder, and a cover plate groove 405 is formed at the opening, and the cover plate 45 can be locked in the cover plate groove 405 to close the opening. At the same time, the cylinder 40 is provided with a liquid injection port 401 for injecting the second liquid, and an overflow port 402 for connecting the overflow pipeline 60; the cover plate 45 is provided with a pressurizing port 451 for connecting the liquid inlet pipeline 2 and the gas cylinder. In order to facilitate the vertical placement of the cylinder 40, a base 400 can also be welded to the cylinder 40.

[0054] The arrangement of the cover plate 45 and the cover plate groove 405 not only facilitates the convenient opening of the cylinder body 40 when taking out and releasing the gas cylinder, but also securely locks the cover plate 45 in the cover plate groove 405 to achieve airtightness of the cylinder body 40. Specifically, a cylinder-driven locking mechanism 47 is provided in the cover plate groove 405 to achieve the locking of the cover plate 45 in the cover plate groove 405, and a sealing gasket 46 is also provided between the cover plate 45 and the cylinder body 40 to ensure the airtightness of the cover plate 45.

[0055] Based on the fact that the locking mechanism 47, the first on-off control valve 110, the second on-off control valve 120, the first pressure relief control valve 211, the second pressure relief control valve 213, and the air control valve at the booster pump are all pneumatically operated, the gas cylinder detection system of this embodiment can be equipped with an air control unit 7 to provide compressed air for each pneumatic component. Figure 1As shown in , the air control unit 7 includes an air tank 71 connected to the air source 70, and an air control pipeline 700 connected between the air tank 71 and each pneumatic component; at the same time, a second pressure regulating valve 72 is configured in the air control unit 7 to adjust the pressure of the compressed air, and an exhaust valve 710 is also provided at the bottom of the air tank 71 for use in cleaning and maintaining the air tank 71. In this embodiment, the air tank 71 can be a compressed air tank with a volume of 5000L, and a safety valve and a pressure gauge are provided for the compressed air tank to provide driving gas for the system. By controlling the on and off of the control valve on the corresponding air control pipeline 700, a driving force can be provided for the action of each air control component; for example, a driving gas source and cooling air are provided for the booster pump.

[0056] In addition, the water jacket 4 of this embodiment can also be configured as follows:

[0057] 1. A drain port 406 for discharging the liquid in the water jacket 4 is provided at the bottom of the cylinder 40;

[0058] 2. An abnormal liquid discharge port 403 is provided on the cylinder 40, and a bursting disc is blocked in the abnormal liquid discharge port 403;

[0059] 3. An exhaust port 450 is provided on the cover plate 45;

[0060] 4. A suspension rod 452 is provided on the cover plate 45 to facilitate lifting and placing the cover plate 45 .

[0061] Of course, the above-mentioned configurations can be selectively implemented, and only one or more of the above-mentioned configurations can be implemented, or all of the above-mentioned configurations can be implemented. Among them, the sewage outlet 406 can be connected to the drainage pipeline 3 through a sewage pipeline to discharge the liquid in each water jacket 4; corresponding to four water jackets 4, of course, four sewage pipelines need to be configured, such as Figure 1 As shown in , the four sewage pipes are respectively provided with a first drain valve 410 , a second drain valve 420 , a third drain valve 430 and a fourth drain valve 440 , so as to flexibly control the discharge of the liquid in each water jacket 4 .

[0062] The abnormal liquid discharge port 403 and its bursting disc are provided so that when the pressure in the water jacket 4 is abnormally high, the bursting disc can be ruptured to discharge the pressure in the water jacket 4, thereby improving the safety of the water jacket 4. The provision of the exhaust port 450 is conducive to the liquid injection operation of the water jacket 4. When liquid is injected into the water jacket 4 through the liquid injection branch 13, the exhaust port 450 is opened to discharge the air in the water jacket 4. After the water jacket 4 is filled with liquid, the exhaust port 450 can be blocked.

[0063] Based on the above overall configuration, the working principle of the gas cylinder detection system of this embodiment is as follows:

[0064] The external water supply enters the liquid supply pipeline 1 through the liquid supply port 10, the main valve 101 is opened, and the water reaches the end of the liquid supply pipeline 1 after being pressure-regulated by the first pressure regulating valve 102 and filtered by the filter 104. When the second liquid supply branch 12 is used, the first on-off control valve 110 is closed, the second on-off control valve 120 is opened, the first booster pump 122 or the second booster pump 123 is running, and the water passing through the second liquid supply branch 12 is pressurized by the booster pump and enters the liquid inlet pipeline 2, and then enters each gas cylinder through each pressurized branch pipe. The pressurization of the gas cylinder can be reasonably set according to the inspection standard of the gas cylinder; for example, the set pressure is 105MPa. Before the gas cylinder is pressurized, each water jacket 4 has been filled with water through the liquid injection branch 13.

[0065] After the test is completed, the second pressure relief control valve 213 or the first pressure relief control valve 211 is opened, and the high-pressure liquid in the gas cylinder is discharged to the drain pipeline 3 through the pressure relief pipe 21, and then discharged to the outside of the system through the drain port 30, completing the pressure relief.

[0066] According to the test requirements, after the gas cylinder is pressurized, the water overflowing from the water jacket 4 will flow into the container of the corresponding measuring tool through the overflow pipe 60, and the container can be a beaker; then the change in the amount of water in the beaker is measured by an electronic balance, and the deformation value and deformation rate of the gas cylinder are measured by a computer. The system is provided with multiple water jackets 4, so that multiple stations and multiple working modes can be realized, thereby achieving the purpose of improving the detection efficiency.

[0067] In addition, the gas cylinder detection system of this embodiment is based on an electronic balance and the configuration of various control valves, which provides sufficient conditions for the automated operation of the system. With the configuration of a computer and a corresponding control unit, efficient automated batch detection can be achieved. In specific implementation, the temperature, pressure value and other parameters can be set by a computer, and the corresponding control valve can be automatically opened and closed using a controllable programmer to control the operation of the booster pump and collect weighing data from the electronic balance. The pressure value, temperature value and operating status can be displayed in real time on the computer's human-computer interaction interface. When the pressure or temperature exceeds the system setting value, the system alarms and shuts down in an emergency.

[0068] In summary, the water jacket 4 and the gas cylinder detection system of the present embodiment can test the air tightness and pressure bearing performance of multiple gas cylinders at one time by using multiple water jackets 4 arranged in the system, and the structure of the water jacket 4 is reasonable, which is convenient for the operation of putting in and taking out the gas cylinders; by pressurizing the first liquid in the gas cylinder to make it expand and deform, the water jacket 4 filled with the second liquid will overflow the second liquid to the measuring unit; by measuring the volume or weight of the second liquid flowing out of each water jacket 4 respectively, the expansion and deformation degree of the corresponding gas cylinder can be calculated, thereby providing a system solution for batch testing the pressure bearing performance of gas cylinders.

[0069] The above is only a preferred embodiment of the present invention. The detailed explanation of the configuration, the examples of the specific structural setting, or the description of the assembly connection method, etc., are all for the purpose of full disclosure so that those skilled in the art can better implement the present invention, and are not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A water jacket for holding a gas cylinder to be tested, characterized in that: The water jacket (4) comprises a cylinder (40) and a cover plate (45); an opening for placing the gas cylinder is provided at the top of the cylinder (40), and a cover plate groove (405) is formed at the opening, and the cover plate (45) can be locked in the cover plate groove (405) to close the opening; The cylinder (40) is provided with a liquid injection port (401) and a liquid overflow port (402); the cover plate (45) is provided with a pressurizing port (451) for connecting to the gas cylinder.

2. The water jacket according to claim 1, characterized in that: The bottom of the cylinder (40) is provided with a drain port (406) for discharging the liquid in the water jacket (4), and / or the cylinder (40) is provided with an abnormal liquid leakage port (403) blocked by a bursting disc, and / or the cover plate (45) is provided with an exhaust port (450).

3. A gas cylinder detection system, characterized in that: It comprises a liquid supply unit, a measuring unit, and a plurality of water jackets (4) as claimed in claim 1 or 2, wherein a plurality of gas cylinders to be tested are placed in each of the water jackets (4); The liquid supply unit is connected to each of the pressurizing ports (451) via a liquid inlet pipeline (2), and is capable of simultaneously supplying a first liquid of a set pressure into each of the gas cylinders; Each of the water jackets (4) is sealed and filled with a second liquid through the liquid filling port (401); each of the water jackets (4) is connected to the measuring unit through the overflow port (402) and the corresponding overflow pipeline (60), so that the second liquid filled therein can overflow; the gas cylinder is deformed by the pressure of the first liquid, so that the second liquid in the water jacket (4) overflows through the corresponding overflow pipeline (60), and the measuring unit can respectively measure the amount of the second liquid overflowing from each overflow pipeline (60).

4. The gas cylinder detection system according to claim 3, characterized in that: The liquid supply unit comprises a liquid supply pipeline (1), and a first liquid supply branch (11) and a second liquid supply branch (12) branched from the end of the liquid supply pipeline (1); The first liquid supply branch (11) and the second liquid supply branch (12) are both connected to the liquid inlet pipeline (2) in a controllable manner, and a pressure pump is provided on the second liquid supply branch (12).

5. The gas cylinder detection system according to claim 4, characterized in that: The second liquid supply branch (12) is connected to the liquid inlet pipeline (2) via a plurality of passages arranged in parallel, and the booster pump is provided on each of the passages.

6. The gas cylinder detection system according to claim 4, characterized in that: It also comprises a liquid discharge pipeline (3), wherein the first liquid supply branch (11) and the second liquid supply branch (12) are connected to the liquid discharge pipeline (3) via a first safety valve (111) and a second safety valve (121) respectively.

7. The gas cylinder detection system according to claim 6, characterized in that: Relative to one end connected to the liquid supply pipeline (1), the other end of the liquid inlet pipeline (2) is branched into a pressure main pipe (20) and a pressure relief pipe (21); The pressurizing main pipe (20) is connected to each of the gas cylinders through a plurality of pressurizing branch pipes, and each of the pressurizing branch pipes is provided with a throttle valve; the pressure relief pipe (21) is connected to the liquid discharge pipeline (3) in an on-off controllable manner.

8. The gas cylinder detection system according to claim 4, characterized in that: Along the flow direction of the liquid in the liquid supply pipeline (1), a main valve (101), a first pressure regulating valve (102), a first non-return valve (103) and a filter (104) are sequentially arranged on the liquid supply pipeline (1).

9. The gas cylinder detection system according to claim 4, characterized in that: It also comprises a liquid injection branch (13) branching from the end of the liquid supply pipeline (1), wherein the liquid injection branch (13) is connected to each of the water jackets (4) through a plurality of branches, and each of the branches is provided with a liquid injection valve.

10. The gas cylinder detection system according to any one of claims 3 to 9, characterized in that: The measuring unit comprises a plurality of sets of measuring tools arranged corresponding to the overflow pipelines (60); the measuring tools comprise a container for receiving the second liquid flowing out of the overflow pipeline (60), and an electronic balance for weighing the container.

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