Air pressure testing system

Abstract

The utility model discloses an air pressure testing system. The air pressure testing system comprises a switch module, a first opening of the switch module is connected with a second opening of a first pipeline, and a second opening of the switch module is connected with a first opening of a second pipeline; the switch module is used for switching on or switching off gas circulation between the first pipeline and the second pipeline; the air outlet end of the first pipe joint tool is connected with the first opening of the first pipeline, and the first pipe joint tool is used for sealing the first opening of the first pipeline; the air outlet end of the second pipe joint tool is connected with the second opening of the second pipeline, and the second pipe joint tool is used for sealing the second opening of the second pipeline; and the gas transmission module is connected with the gas inlet end of the first pipe joint tool or the gas inlet end of the second pipe joint tool through a gas pipe, and is used for inflating the first pipeline or the second pipeline and detecting the gas pressure. According to the technical scheme provided by the utility model, the detection efficiency of the air pressure test is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of liquid flow battery, especially relates to a gas pressure test system. BACKGROUND

[0002] As a new type of energy storage device, liquid flow battery has been widely concerned in large-scale energy storage field because of its advantages of large energy storage capacity, long service life, high charging and discharging efficiency and deep discharging. In the liquid flow battery, the electrolyte delivery pipeline plays a crucial role, which is responsible for circulating the electrolyte between the battery stack and the liquid storage tank, ensuring that the electrodes in the battery stack are in full contact with the electrolyte, and maintaining the normal charging and discharging reaction of the battery. Therefore, it is necessary to test the gas pressure of the electrolyte delivery pipeline and the electromagnetic valve connected with the delivery pipeline. The existing gas pressure test system has low detection efficiency. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of gas pressure test system to improve the detection efficiency of gas pressure test.

[0004] According to an aspect of the utility model, a kind of gas pressure test system is provided, comprising:

[0005] Switch module, the first opening of the switch module is connected with the second opening of first pipeline, the second opening of the switch module is connected with the first opening of second pipeline;The switch module is used to open or shut off the gas flow between the first pipeline and the second pipeline;

[0006] First pipe joint tooling, the gas outlet end of the first pipe joint tooling is connected with the first opening of the first pipeline, for sealing the first opening of the first pipeline;

[0007] Second pipe joint tooling, the gas outlet end of the second pipe joint tooling is connected with the second opening of the second pipeline, for sealing the second opening of the second pipeline;

[0008] Gas delivery module, by trachea with the gas inlet end of the first pipe joint tooling or the gas inlet end of the second pipe joint tooling is connected, for the first pipeline or the second pipeline is inflated, and detects gas pressure.

[0009] Optionally, the first pipe joint tooling includes: first pipe joint and first aeration joint;

[0010] The gas outlet end of the first pipe joint is connected with the first opening of the first pipeline, the gas inlet end of the first pipe joint is connected with the gas outlet end of the first aeration joint, and the first aeration joint is used to aeration when connecting the gas delivery module.

[0011] Optionally, the second pipe joint tool comprises: a second pipe joint and a second breather joint.

[0012] The gas outlet end of the second pipe joint is connected with the second opening of the second pipe, the gas inlet end of the second pipe joint is connected with the gas outlet end of the second breather joint, and the second breather joint is used for breather when connecting the gas supply module.

[0013] Optionally, the gas inlet end of the first pipe joint is hot melt connected with the gas outlet end of the first breather joint.

[0014] The gas inlet end of the second pipe joint is hot melt connected with the gas outlet end of the second breather joint.

[0015] Optionally, the first pipe comprises: at least two first sub-pipes welded with each other.

[0016] The second pipe comprises: at least two second sub-pipes welded with each other.

[0017] The first pipe and the second pipe comprise liquid flow battery electrolyte conveying pipes.

[0018] Optionally, the switch module comprises: a switch and a solenoid valve.

[0019] The first opening of the solenoid valve is connected with the second opening of the first pipe, and the second opening of the solenoid valve is connected with the first opening of the second pipe.

[0020] The power supply end of the switch is connected with a power supply, and the signal end of the switch is connected with the control end of the solenoid valve, so that the switch is used for controlling the opening or closing of the solenoid valve.

[0021] Optionally, the first opening of the switch module is connected with the second opening of the first pipe through screw connection, and the second opening of the switch module is connected with the first opening of the second pipe through screw connection.

[0022] Optionally, the gas supply module comprises: an air compressor.

[0023] The technical scheme provided by the embodiment of the utility model, through combination of the first pipe, the second pipe and the switch module into a closed structure, simultaneous detection of the closed state of the first pipe, the second pipe and the switch module can be realized through only once connection, independent test of each component is not needed, the test process is simple, has lower detection cost and detection time, and the detection efficiency is improved.

[0024] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a structural schematic diagram of a gas pressure test system according to an embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of another gas pressure test system according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0029] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0030] The embodiments of the present application provide a gas pressure test system. Figure 1 is a structural schematic diagram of a gas pressure test system according to an embodiment of the present application, with reference to Figure 1The gas pressure test system comprises a switch module 1, a first pipe joint tool 2, a second pipe joint tool 3 and a gas feeding module 4. The first opening of the switch module 4 is connected with the second opening of the first pipe 51, and the second opening of the switch module 1 is connected with the first opening of the second pipe 52. The switch module 1 is used to open or close the gas flow between the first pipe 51 and the second pipe 52. The gas outlet end of the first pipe joint tool 2 is connected with the first opening of the first pipe 51, and is used to seal the first opening of the first pipe 51. The gas outlet end of the second pipe joint tool 3 is connected with the second opening of the second pipe 52, and is used to seal the second opening of the second pipe 52. The gas feeding module 4 is connected with the gas inlet end of the first pipe joint tool 2 or the gas inlet end of the second pipe joint tool 3 through a gas pipe, and is used to fill gas into the first pipe 51 or the second pipe 52 and detect the gas pressure.

[0031] The first pipe 51 and the second pipe 52 can form an integrated pipe structure after being connected with the switch module 1. When the first pipe joint tool 2 and the second pipe joint tool 3 are not connected with the gas feeding module 4, the gas cannot flow between the gas inlet end and the gas outlet end. When the gas feeding module 4 is connected with the first pipe joint tool 2 or the second pipe joint tool 3 through the gas pipe, the gas can flow from the gas inlet end to the gas outlet end through the first pipe joint tool 2 or the second pipe joint tool 3.

[0032] Therefore, after the first pipe joint tool 2 seals the first opening of the first pipe 51 and the second pipe joint tool 3 seals the second opening of the second pipe 52, the first pipe 51 and the second pipe 52 form a closed structure with the switch module 1. In an ideal state, the closed structure is completely sealed and no gas leakage occurs.

[0033] To detect whether the structure is completely sealed, the gas feeding module 4 is connected with the first pipe joint tool 2 or the second pipe joint tool 3, and the first pipe joint tool 2 or the second pipe joint tool 3 is filled with gas to perform the gas pressure test.

[0034] Specifically, the switch module 1 is in a closed state, and the first pipe 51 and the second pipe 52 are not connected. The gas feeding module 4 is connected with the first pipe joint tool 2, and the gas feeding module 4 fills the first pipe 51 with gas through the gas pipe until the set pressure value is reached. For example, the gas pressure output by the gas feeding module 4 is regulated to 0.7 MPa, and the gas feeding module 4 stops outputting gas when the gas pressure in the first pipe 51 is detected to be 0.7 MPa.

[0035] Because the gas delivery speed of the gas delivery module 4 is fast, when the gas delivery module 4 stops gas output, the gas in the first pipeline 51 is in an unstable state, and the gas pressure can change over time. In order to ensure the accuracy of the gas pressure test result, the gas pressure can be detected after the gas is completely stable. For example, the gas pressure detection is performed five minutes after the gas delivery module 4 stops gas output. The time for the gas pressure detection can be two minutes, and if the gas pressure of the gas delivery module 4 does not decrease and there is no secondary operation for air supplementing within the two minutes, it indicates that the connection between the first pipeline 51 and the switch module 1 is in a good sealing state.

[0036] After the test is completed, the connection between the gas delivery module 4 and the first pipe joint tool 2 is disconnected, and the gas delivery module 4 is connected to the second pipe joint tool 3. The switch module 1 remains in the off state, and the gas delivery module 4 fills the second pipeline 52 with gas through the gas pipe until the set pressure value is reached. The gas pressure detection is performed five minutes after the gas delivery module 4 stops gas output. If the gas pressure of the gas delivery module 4 does not decrease and there is no secondary operation within the time for the gas pressure detection, it indicates that the connection between the second pipeline 52 and the switch module 1 is in a good sealing state.

[0037] After the test is completed, the switch module 1 is switched from the off state to the on state, and the first pipeline 51 and the second pipeline 52 are connected. Therefore, the gas delivery module 4 can fill the first pipeline 51 and the second pipeline 52 with gas through one gas pipe until the set pressure value is reached. The gas pressure detection is performed five minutes after the gas delivery module 4 stops gas output. If the gas pressure of the gas delivery module 4 does not decrease and there is no secondary operation within the time for the gas pressure detection, it indicates that the first pipeline 51 and the second pipeline 52 are in a good sealing state with the switch module 1. By switching the on and off states of the switch module 1, not only whether the switch module 1 can operate normally can be tested, but also the sealing state of the first pipeline 51 and the second pipeline 52 with the switch module 1 can be detected again, which has high reliability.

[0038] The above test method is only an embodiment of the present application and does not limit the present application. In other embodiments, the switch module 1 can be first placed in the on state for gas pressure testing, and then the switch module 1 is placed in the off state, and the first pipeline 51 or the second pipeline 52 is filled with gas and tested for gas pressure.

[0039] The technical scheme provided by the embodiment of the utility model, through the combination of the first pipeline, the second pipeline and the switch module into a closed structure, only through one connection can realize the simultaneous detection of the closed state of the first pipeline, the second pipeline and the switch module, without independent testing of each component, the testing process is simple, has lower detection cost and detection time, and improves the detection efficiency.

[0040] Figure 2 For another structure diagram of the gas pressure test system provided by the embodiment of the utility model, refer to Figure 2 On the basis of the above embodiments, optionally, the first pipe joint tool 2 comprises: a first pipe joint 21 and a first vent joint 22. The gas outlet end of the first pipe joint 21 is connected with the first opening of the first pipeline 51, the gas inlet end of the first pipe joint 21 is connected with the gas outlet end of the first vent joint 22, and the first vent joint 22 is used for venting when connecting the gas supply module 4.

[0041] Among them, the first vent joint 22 is used for connecting the first pipe joint 21 and the gas supply module 4. The first vent joint 22 is in a closed state when not connected with the gas pipe. When the first vent joint 22 is connected with the gas pipe and the gas supply module 4 outputs gas, the first vent joint 22 is vented, and the gas is transmitted to the first pipeline 51 through the first pipe joint 21.

[0042] Optionally, the gas inlet end of the first pipe joint 21 is hot melt connected with the gas outlet end of the first vent joint 22. Compared with the traditional threaded connection mode, the hot melt connection has the advantages of simple connection, long service life, corrosion resistance and the like. The first pipe joint 21 and the first vent joint 22 adopting hot melt connection have better integration, so that the first pipe joint tool 2 has lower gas leakage rate, and the accuracy of the gas pressure test is improved.

[0043] Continue to refer to Figure 2 On the basis of the above embodiments, optionally, the second pipe joint tool 3 comprises: a second pipe joint 31 and a second vent joint 32. The gas outlet end of the second pipe joint 31 is connected with the second opening of the second pipeline 52, the gas inlet end of the second pipe joint 31 is connected with the gas outlet end of the second vent joint 32, and the second vent joint 32 is used for venting when connecting the gas supply module 4.

[0044] Among them, the second vent joint 32 is used for connecting the second pipe joint 31 and the gas supply module 4. The second vent joint 32 is in a closed state when not connected with the gas pipe. When the second vent joint 32 is connected with the gas pipe and the gas supply module 4 outputs gas, the second vent joint 32 is vented, and the gas is transmitted to the second pipeline 52 through the second pipe joint 31.

[0045] Optionally, the air inlet end of the second pipe connector 31 and the air outlet end of the second vent connector 32 are heat-fused together. Similar to the first pipe connector fixture 2, the second pipe connector 31 and the second vent connector 32 in the second pipe connector fixture 3 are also heat-fused together. This arrangement reduces the leakage rate of the second pipe connector fixture 3 and improves the accuracy of the air pressure test.

[0046] Continue to refer to Figure 2 Based on the above embodiments, optionally, the first pipe 51 includes at least two first sub-pipes 511 welded together. The second pipe 52 includes at least two second sub-pipes 521 welded together. The first pipe 51 and the second pipe 52 include flow battery electrolyte delivery pipes.

[0047] The first pipe 51 and the second pipe 52 can be used as delivery pipes for the electrolyte of the flow battery. When the flow battery is used, the delivery pipes are not allowed to have leakage problems caused by welding defects. Therefore, before the first pipe 51 and the second pipe 52 are put into use, they must be subjected to air pressure test to avoid air tightness problems caused by defects in the welding process of the sub-pipes.

[0048] Specifically, when the switch module 1 is turned off, the gas supply module 4 supplies gas to the first pipe 51 through the first pipe joint tool 2. When the gas pressure in the first pipe 51 stabilizes, if the gas pressure of the gas supply module 4 does not drop and there is no secondary operation, it indicates that the welding of each first sub-pipe 511 in the first pipe 51 is good.

[0049] The gas delivery module 4 can also supply gas to the second pipe 52 through the second pipe joint tool 3. When the gas pressure in the second pipe 52 is stable, if the gas pressure of the gas delivery module 4 does not drop and there is no secondary operation, it indicates that the welding of each second sub-pipe 521 in the second pipe 52 is good.

[0050] When the switch module 1 is turned on, the gas supply module 4 simultaneously supplies gas to the first pipe 51 and the second pipe 52 through the first pipe joint fixture 2 or the second pipe joint fixture 3. If the gas pressure of the gas supply module 4 does not drop and there is no secondary operation, it indicates that each sub-pipe in the first pipe 51 and the second pipe 52 is in a well-welded state.

[0051] Continue to refer to Figure 2 Based on the above embodiments, optionally, the switch module 1 includes a switch 11 and a solenoid valve 12. The first opening of the solenoid valve 12 is connected to the second opening of the first pipe 51, and the second opening of the solenoid valve 12 is connected to the first opening of the second pipe 52. The power supply terminal of the switch 11 is connected to the power supply 13; the signal terminal of the switch 11 is connected to the control terminal of the solenoid valve 12, and the switch 11 is used to control the opening or closing of the solenoid valve 12.

[0052] The solenoid valve 12 is controlled to open or close via the switch 11. During the pressure test, the gas pressure of the solenoid valve 12 needs to be measured in both its open and closed states. This setup not only tests the sealing state of the first pipe 51, the second pipe 52, and the solenoid valve 12, but also tests whether the solenoid valve 12 can open or close normally when connected to the first pipe 51 and the second pipe 52, ensuring that the solenoid valve 12 can effectively open or close the flow of electrolyte in actual use.

[0053] Continue to refer to Figure 2 Based on the above embodiments, optionally, the first opening of the switch module 1 is connected to the second opening of the first pipe 51 by a thread, and the second opening of the switch module 1 is connected to the first opening of the second pipe 52 by a thread.

[0054] Continue to refer to Figure 2 Optionally, based on the above embodiments, the gas delivery module 4 includes an air compressor.

[0055] An air compressor is a device that generates compressed air, which can compress air or other gases and deliver them through pipes. For example, an air compressor can be set to a certain pressure value and stop gas output when the receiving device reaches the set pressure. Simultaneously, the air compressor can also have a pressure detection function; when the pressure in the receiving device decreases, the air compressor can restart to replenish the receiving device with air.

[0056] It should be understood that the various forms of the process shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this utility model can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this utility model can be achieved, and this is not limited herein.

[0057] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A barometric pressure testing system, characterized by, The utility model relates to a kind of liquid flow battery electrolyte delivery pipeline, comprising: Switch module, the first opening of the switch module is connected with the second opening of first pipe, the second opening of the switch module is connected with the first opening of second pipe;The switch module is used to open or shut off the gas flow between the first pipe and the second pipe; First pipe joint tool, the gas outlet end of the first pipe joint tool is connected with the first opening of the first pipe, for sealing the first opening of the first pipe; Second pipe joint tool, the gas outlet end of the second pipe joint tool is connected with the second opening of the second pipe, for sealing the second opening of the second pipe; Gas supply module, through air pipe with the gas inlet end of the first pipe joint tool or the gas inlet end of the second pipe joint tool is connected, for filling gas to the first pipe or the second pipe, and detecting air pressure.

2. The air pressure testing system of claim 1, wherein, The first pipe joint tool includes: first pipe joint and first ventilation joint; The gas outlet end of the first pipe joint is connected with the first opening of the first pipe, the gas inlet end of the first pipe joint is connected with the gas outlet end of the first ventilation joint, and the first ventilation joint is used to ventilate when connecting the gas supply module.

3. The air pressure testing system of claim 2, wherein, The second pipe joint tool includes: second pipe joint and second ventilation joint; The gas outlet end of the second pipe joint is connected with the second opening of the second pipe, the gas inlet end of the second pipe joint is connected with the gas outlet end of the second ventilation joint, and the second ventilation joint is used to ventilate when connecting the gas supply module.

4. The air pressure testing system of claim 3, wherein, The gas inlet end of the first pipe joint is hot melt connected with the gas outlet end of the first ventilation joint; The gas inlet end of the second pipe joint is hot melt connected with the gas outlet end of the second ventilation joint.

5. The air pressure testing system of claim 1, wherein, The first pipe includes: at least two first sub-pipes welded with each other; The second pipe includes: at least two second sub-pipes welded with each other; The first pipe and the second pipe include liquid flow battery electrolyte delivery pipeline.

6. The air pressure testing system of claim 1, wherein, The switch module includes: switch and electromagnetic valve; The first opening of the electromagnetic valve is connected with the second opening of the first pipe, and the second opening of the electromagnetic valve is connected with the first opening of the second pipe; The power supply end of the switch is connected to power supply, and the signal end of the switch is connected with the control end of the electromagnetic valve, and the switch is used to control the opening or shut off of the electromagnetic valve.

7. The air pressure testing system of claim 1, wherein, The first opening of the switch module is connected with the second opening of the first pipe by screw thread, and the second opening of the switch module is connected with the first opening of the second pipe by screw thread.

8. The air pressure testing system of claim 1, wherein, The gas supply module includes: air compressor.

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