Testing device for flow battery

Abstract

The utility model relates to a testing device of a flow battery, which comprises a galvanic pile fixing platform, an electrolyte storage tank and a circulating pump, the electrolyte storage tank and the circulating pump are arranged in a vehicle body, walking wheels are arranged at the bottom of the vehicle body, the galvanic pile fixing platform is arranged outside the front end of the vehicle body, and the galvanic pile fixing platform is fixedly connected with a vehicle bottom plate. A clamping seat for fixing the electric pile is arranged on the top surface of the electric pile fixing platform, adapters are arranged on two sides of the clamping seat, a liquid inlet adapter is connected with an electric pile liquid inlet, and a liquid outlet adapter is connected with an electric pile liquid outlet; an inlet of the circulating pump is connected with the electrolyte storage tank through a liquid inlet pipeline, an outlet of the circulating pump is connected with the liquid inlet adapter through a liquid inlet pipeline, and the liquid outlet adapter is connected with the electrolyte storage tank through a liquid outlet pipeline. The device is small in occupied space, does not need to occupy a special working place, can carry out test detection along with the installation of a battery, and guarantees that the installation is in place and is qualified.

Description

Technical Field

[0001] The utility model belongs to the technical field of flow battery production, and particularly relates to a testing device for a flow battery. Background Art

[0002] In the field of energy storage batteries, flow batteries have strong stability and safety. At the same time, their power storage capacity, service life, and long-term discharge capacity far exceed those of other energy storage devices, and they are widely used in the energy storage industry. A flow battery consists of a stack unit, electrolytes, an electrolyte storage and supply unit, a management and control unit, etc.

[0003] Among them, the stack is the core component of the flow battery. The current mainstream stack structure includes an end plate, a liquid inlet plate, a current collector plate, a bipolar plate, an electrode, and an ion exchange membrane. Through specific sequential compression and integration, a battery reactor with an electricity storage effect is formed. Among them, the electrode is generally made of carbon felt material. As an electrode material, carbon felt has certain defects, mainly manifested in that the carbon felt fiber filaments are prone to puncturing the exchange membrane under greater pressure, resulting in a short circuit. In addition, due to its large porosity, the number of reactive sites available on the carbon felt is relatively small. Therefore, there is a certain unqualified rate for the production finished products, and functional testing is required before use.

[0004] Currently, when flow battery products are sold and delivered, they are usually installed inside an engineering container and then transported to the project site as a whole for relevant tests. After passing the tests, the products are handed over. During the testing process, if data errors or parameter inconsistencies occur, it is necessary to check each stack one by one and modify the battery. Generally, enterprises cannot provide a site that can accommodate multiple sets of flow batteries. Therefore, once technical problems occur during on-site testing, it is extremely difficult to adjust and modify the flow battery. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is the problem that the assembly site space of the flow battery is limited, the site for battery testing is insufficient, and there is no enough space on site to adjust and modify the battery once problems are found.

[0006] The technical solution adopted by the utility model to solve the above problems is:

[0007] A test device for a flow battery, comprising a stack fixing platform, an electrolyte storage tank and a circulation pump. The electrolyte storage tank and the circulation pump are installed inside the vehicle body. Travel wheels are installed at the bottom of the vehicle body. The stack fixing platform is arranged outside the front end of the vehicle body and is fixedly connected to the vehicle floor. A card seat for fixing the stack is arranged on the top surface of the stack fixing platform. Adapters are arranged on both sides of the card seat. The inlet adapter is connected to the stack inlet, and the outlet adapter is connected to the stack outlet. The inlet of the circulation pump is connected to the electrolyte storage tank through an inlet pipeline, and the outlet of the circulation pump is connected to the inlet adapter through an inlet pipeline. The outlet adapter is connected to the electrolyte storage tank through an outlet pipeline.

[0008] Optionally, the adapter includes a main pipe. One end of the main pipe is closed, and a connector is arranged at the other end. The connector is connected to the inlet pipeline or the outlet pipeline. A number of branch connectors are evenly installed on the main pipe. Each branch connector is equipped with an independent valve. Each branch connector is connected to the corresponding inlet or outlet on the stack through a hose.

[0009] Optionally, an intermediate partition is arranged inside the vehicle body. The side of the intermediate partition is fixedly connected to the side of the stack fixing platform to serve as the back panel of the stack fixing platform.

[0010] Optionally, a pump mounting seat is arranged at the lower part of the intermediate partition. The circulation pump is installed in the pump mounting seat. A liquid inlet pipe joint is embedded on the side of the pump mounting seat. The position of the liquid inlet pipe joint corresponds to the pump port of the circulation pump. A control board is arranged on the side of the vehicle body and is electrically connected to the circulation pump.

[0011] Optionally, a support frame with a height of 600 mm - 700 mm is further arranged on the lower side of the stack fixing platform. The lower end of the support frame is fixedly connected to the vehicle floor.

[0012] The utility model adopting the above structure, compared with the prior art, has the following beneficial effects:

[0013] 1) This test device can move freely, so it can move to the side of each battery to be tested, eliminating the need for battery moving and handling work, saving time and effort; 2) This device does not require a dedicated site; 3) The utility model can accompany the testing and detection of the battery during the process of loading and assembling the flow battery, and the battery is qualified for acceptance as soon as it is installed in place. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the external shape of the vehicle body of this test device;

[0015] Figure 2 is a schematic diagram of the internal layout of this test device;

[0016] Figure 3 is a structural diagram of the adapter of this test device;

[0017] Figure 4It is a schematic structural diagram of the pump mounting base at the bottom of the middle partition of this test device;

[0018] Figure 5 It is a reference diagram of the installation state of the stack when tested in this test device.

[0019] In the figure: 1, vehicle body; 2, traveling wheels; 3, stack fixing platform; 4, adapter; 41, main pipe; 42, connector; 43, branch joint; 44, valve; 5, electrolyte storage tank; 6, circulation pump; 71, inlet pipe; 72, outlet pipe; 8, stack; 9, bracket; 10, middle partition; 11, pump mounting base; 12, inlet pipe joint; 13, control board. Specific implementation mode

[0020] The following further illustrates the present utility model in conjunction with embodiments, and the purpose is only to better understand the content of the present utility model. Therefore, the examples given do not limit the protection scope of the present utility model.

[0021] See Figures 1 to 5 , a test device for a flow battery, including a stack fixing platform 3, an electrolyte storage tank 5 and a circulation pump 6. The present utility model provides a trolley carrier, the electrolyte storage tank 5 and the circulation pump 6 are installed in the vehicle body 1, traveling wheels 2 are installed at the bottom of the vehicle body 1, a stack fixing platform 3 is arranged outside the front end of the vehicle body 1, the stack fixing platform 3 is fixedly connected to the vehicle floor, a card seat for fixing the stack 8 is arranged on the top surface of the stack fixing platform 3, adapters 4 are arranged on both sides of the card seat, the inlet adapter 4 is connected to the inlet of the stack, and the outlet adapter 4 is connected to the outlet of the stack; the inlet of the circulation pump 6 is connected to the electrolyte storage tank 5 through the inlet pipe 71, the outlet of the circulation pump 6 is connected to the inlet adapter 4 through the inlet pipe 71, and the outlet adapter 4 is connected to the electrolyte storage tank 5 through the outlet pipe 72.

[0022] The present utility model is a test device that can move according to engineering needs. The test vehicle can stop at any suitable position according to the enterprise site conditions and connect to the battery to be tested nearby. This test vehicle body 1 is small and does not require the enterprise to specially provide a test site; the present utility model can also conduct one-by-one tests during the uninstallation and installation process of the battery product, accompanying the installation process of the battery.

[0023] Optionally, the adapter 4 includes a main pipe 41, one end of the main pipe 41 is closed, the other end is provided with a connector 42, the connector 42 is connected to the inlet pipe 71 or the outlet pipe 72, a number of branch joints 43 are evenly installed on the main pipe 41, each branch joint 43 is equipped with an independent valve 44, and each branch joint 43 is connected to the corresponding inlet or outlet of the stack 8 through a hose; this solution provides multiple branch joints 43, and corresponding numbers can be put into use according to the needs of the current stack 8, enabling the present utility model to test various stacks 8, with better applicability and flexibility.

[0024] In the utility model, an intermediate partition 10 is arranged inside the vehicle. The side part of the intermediate partition 10 is fixedly connected to the side part of the fuel cell stack fixing platform 3 to serve as the rear backboard of the fuel cell stack fixing platform 3. On the one hand, the intermediate partition 10 functions as the support of the vehicle body 1 and the support of the internal pipelines, separating the front retrieval end from the rear equipment end, which is convenient for maintenance and management.

[0025] Optionally, a pump mounting seat 11 is arranged at the lower part of the intermediate partition 10. The circulation pump 6 is installed in the pump mounting seat 11. A liquid inlet pipe joint 12 is embedded in the side part of the pump mounting seat 11, and the position of the liquid inlet pipe joint 12 corresponds to the pump port of the circulation pump 6. A control board 13 is arranged on the side part of the vehicle body 1, and the control board 13 is electrically connected to the circulation pump 6. This solution provides a quick-installation structure for the circulation pump 6. After the circulation pump 6 is placed in the pump mounting seat 11, it directly docks with the corresponding interfaces, with a faster installation speed. This modular assembly structure makes maintenance more convenient, and the interface stability is also better, not easily damaged.

[0026] A support frame 9 with a height of 600 mm - 700 mm is further arranged under the fuel cell stack fixing platform 3 of the utility model. On the one hand, this height facilitates the work of manually replacing the test fuel cell stack 8. On the other hand, the increased height of the fuel cell stack 8 forms a significant height difference between the liquid outlet of the fuel cell stack and the liquid return port of the electrolyte storage tank 5, making the electrolytic reflux better.

[0027] The above are only the preferred and feasible embodiments of the utility model, and do not limit the scope of the rights of the utility model accordingly. All equivalent changes made by using the content of the specification and drawings of the utility model are included within the scope of the rights of the utility model.

Claims

1. A flow battery testing device, comprising a battery stack fixing platform (3), an electrolyte storage tank (5) and a circulation pump (6), characterized in that: The electrolyte storage tank (5) and the circulation pump (6) are installed in the vehicle body (1); the bottom of the vehicle body (1) is provided with a running wheel (2); the front end of the vehicle body (1) is provided with a stack fixing platform (3); the stack fixing platform (3) is fixed to the vehicle bottom plate; the top surface of the stack fixing platform (3) is provided with a holder for fixing the stack (8); adapters (4) are provided on both sides of the holder; the liquid inlet adapter (4) is connected to the liquid inlet of the stack; the liquid outlet adapter (4) is connected to the liquid outlet of the stack; the inlet of the circulation pump (6) is connected to the electrolyte storage tank (5) through a liquid inlet pipeline (71); the outlet of the circulation pump (6) is connected to the liquid inlet adapter (4) through a liquid inlet pipeline (71); the liquid outlet adapter (4) is connected to the electrolyte storage tank (5) through a liquid outlet pipeline (72).

2. The testing device for flow battery according to claim 1, characterized in that: The adapter (4) comprises a main pipe (41), one end of the main pipe (41) is closed, and the other end is provided with a connector (42), the connector (42) is connected to a liquid inlet pipe (71) or a liquid outlet pipe (72), a plurality of branch joints (43) are evenly installed on the main pipe (41), each branch joint (43) is provided with an independent valve (44), and each branch joint (43) is connected to a corresponding liquid inlet or liquid outlet on the battery stack (8) through a hose.

3. The testing device for flow battery according to claim 1, characterized in that: A middle partition (10) is arranged in the vehicle body (1), and a side portion of the middle partition (10) is fixedly connected to a side portion of the battery stack fixing platform (3) to serve as a rear plate of the battery stack fixing platform (3).

4. The testing device for flow battery according to claim 3, characterized in that: A pump mounting seat (11) is provided at the lower part of the middle partition (10), and the circulating pump (6) is installed in the pump mounting seat (11). A liquid inlet pipe joint (12) is embedded in the side of the pump mounting seat (11), and the position of the liquid inlet pipe joint (12) corresponds to the pump port of the circulating pump (6); a control panel (13) is provided at the side of the vehicle body (1), and the control panel (13) is electrically connected to the circulating pump (6).

5. The testing device for flow battery according to claim 1, characterized in that: A support frame with a height of 600 mm to 700 mm is also provided on the lower side of the stack fixing platform (3), and the lower end of the support frame is fixedly connected to the bottom plate of the vehicle body (1).

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