Flow battery energy storage heat exchange device

Abstract

The utility model relates to a heat exchange device, concretely relates to a liquid flow battery energy storage heat exchange device. The utility model provides a liquid flow battery energy storage heat exchange device, including heat exchange sheet, cooling liquid inlet pipe and cooling liquid discharge pipe, heat exchange sheet sets up in the inside of storage jar, and heat exchange sheet and storage jar are detachably connected, cooling liquid inlet pipe and the sealed communication of liquid inlet pipe of heat exchange sheet, and cooling liquid inlet pipe passes through the extension to the outside of storage jar, and cooling liquid inlet pipe and storage jar are sealedly connected, cooling liquid discharge pipe and the sealed communication of liquid outlet pipe of heat exchange sheet, and cooling liquid discharge pipe passes through the extension to the outside of storage jar, and cooling liquid discharge pipe and storage jar are sealedly connected. The utility model's main purpose is to provide a liquid flow battery energy storage heat exchange device, has solved the technical problem that the existing heat exchange device is difficult to adjust cooling liquid capacity, is difficult to adjust heat exchange device and electrolyte contact area.

Description

Technical Field

[0001] This utility model relates to a heat exchange device, specifically a flow battery energy storage heat exchange device. Background Technology

[0002] A flow battery consists of a stack unit, electrolyte, electrolyte storage and supply unit (tank), and management and control unit. It features high capacity, wide applicability (in various environments), and long cycle life. However, excessively high electrolyte temperatures in flow batteries can lead to precipitation, causing a decrease in battery capacity. Furthermore, excessive precipitation adhering to the porous electrode surface can even puncture the proton exchange membrane, damaging the stack.

[0003] Currently, heat exchange devices are installed in electrolyte storage tanks to reduce the temperature of the electrolyte. However, existing heat exchange devices are difficult to adjust the contact area between the heat exchange device and the electrolyte, as well as the capacity of the coolant. This means that these heat exchange devices are only suitable for specific environments. If the ambient temperature is too high, the heat exchange device may not be able to completely cool the electrolyte. Utility Model Content

[0004] The main objective of this invention is to provide a flow battery energy storage heat exchange device that solves the technical problems of existing heat exchange devices, such as difficulty in adjusting the coolant capacity and the contact area between the heat exchange device and the electrolyte.

[0005] To achieve the above objectives, this utility model provides a flow battery energy storage heat exchange device, including heat exchange plates, a coolant inlet pipe, and a coolant outlet pipe;

[0006] The heat exchange fins are installed inside the storage tank, and the heat exchange fins and the storage tank are detachably connected.

[0007] The coolant inlet pipe and the heat exchanger fin inlet pipe are sealed and connected. The coolant inlet pipe extends through the storage tank to the outside of the storage tank and is sealed and connected to the storage tank.

[0008] The coolant drain pipe and the heat exchanger fin outlet pipe are sealed and connected. The coolant drain pipe extends through the storage tank to the outside of the storage tank and is sealed to the storage tank.

[0009] Preferably, the heat exchange fins include a first manifold, a second manifold, and multiple flat tubes;

[0010] The first and second manifolds are arranged in parallel and at intervals;

[0011] A first limiting strip is fixed on one side of the first manifold, and a first limiting groove is opened on the other side of the first manifold. The first limiting groove and the first limiting strip are arranged opposite to each other, and the first manifold and the liquid outlet pipe are sealed and connected.

[0012] A second limiting strip is fixed on one side of the second manifold, and a second limiting groove is opened on the other side of the second manifold. The second limiting groove and the second limiting strip are arranged opposite to each other, and the second manifold and the inlet pipe are sealed and connected.

[0013] Multiple flat tubes are equally spaced between the first manifold and the second manifold, with both ends of the flat tubes connected to the first manifold and the second manifold, respectively.

[0014] Preferably, the heat exchange plate further includes a side plate, one end of which is fixedly connected to the first manifold, and the other end of which is fixedly connected to the second manifold. The side plate is provided with a third limiting groove along its length.

[0015] Preferably, a support plate is fixedly provided on the inner side of the storage tank, and a third limiting strip is fixedly provided on the top of the support plate. The third limiting strip extends along the axial direction of the storage tank and is engaged in the third limiting groove. The bottom of the side plate abuts against the support plate.

[0016] The beneficial effects achieved by this utility model are as follows:

[0017] The heat exchange plate in this invention stores coolant. The heat exchange plate is in contact with the electrolyte and can transfer the heat of the electrolyte to the coolant to cool the electrolyte, thereby preventing the electrolyte from overheating and causing precipitation, improving battery stability and charge / discharge efficiency, and further preventing battery damage.

[0018] The first and second manifolds of this invention are both equipped with limiting strips and limiting grooves, which facilitates the splicing and assembly of heat exchange plates. The number of heat exchange plates can be adjusted according to the environment in which the battery is located. The heat exchange plates are detachably connected to the storage tank by plugging and unplugging. The heat exchange plates can also be detachably connected to each other by plugging and unplugging. The installation and disassembly between the heat exchange plates and the storage tank, and between the heat exchange plates themselves, are very convenient. The capacity of the coolant can be changed by the number of heat exchange plates used, thereby improving the cooling effect of the heat exchange device on the electrolyte. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a schematic diagram of a flow battery energy storage heat exchange device disclosed in a specific embodiment of this utility model;

[0021] Figure 2 This is another schematic diagram of a flow battery energy storage heat exchange device disclosed in a specific embodiment of this utility model;

[0022] Figure 3 This is a schematic diagram of the installation and assembly of the heat exchanger, coolant inlet pipe and coolant outlet pipe disclosed in a specific embodiment of this utility model;

[0023] Figure 4 This is an exploded schematic diagram of the heat exchanger, coolant inlet pipe, and coolant outlet pipe disclosed in a specific embodiment of this utility model;

[0024] Figure 5 yes Figure 4 Enlarged view of section A.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Heat exchanger fins; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. First manifold; 131. First limiting strip; 132. First limiting groove; 14. Second manifold; 141. Second limiting strip; 142. Second limiting groove; 143. Threaded hole; 144. Bolt; 15. Flat tube; 16. Side plate; 161. Third limiting groove; 2. Coolant inlet pipe; 3. Coolant outlet pipe; 4. Storage tank; 41. Support plate; 42. Third limiting strip. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figures 1-5 As shown, this utility model discloses a flow battery energy storage heat exchange device, including a heat exchange plate 1, a coolant inlet pipe 2, and a coolant outlet pipe 3. The heat exchange plate 1 is disposed inside a storage tank 4, which is used to store electrolyte. The heat exchange plate 1 and the storage tank 4 are detachably connected.

[0029] As a detachable connection method between heat exchanger 1 and storage tank 4, heat exchanger 1 includes a first manifold 13, a second manifold 14, multiple flat tubes 15, and two side plates 16. Please refer to... Figure 4The first manifold 13 and the second manifold 14 are arranged parallel to each other and spaced apart. A first limiting strip 131 is fixed to one side of the first manifold 13, and a first limiting groove 132 is formed on the opposite side of the first limiting strip 131. The middle of the top surface of the first manifold 13 is sealed and connected to the outlet pipe 12. A second limiting strip 141 is fixed to one side of the second manifold 14, and a second limiting groove 142 is formed on the opposite side of the second limiting strip 141. The middle of the bottom surface of the second manifold 14 is sealed and connected to the inlet pipe 11. Two side plates 16 are respectively fixedly installed at both ends of the first manifold 13 and the second manifold 14. Specifically, the top of the side plate 16 is fixedly connected to the first manifold 13, and the bottom of the side plate 16 is fixedly connected to the second manifold 14. A third limiting groove 161 is formed along the length of the side plate 16. Please refer to [reference needed]. Figure 2 A support plate 41 is fixedly installed on the inner side wall of the storage tank 4. The support plate 41 is horizontally set, and a third limiting strip 42 is fixedly connected to the top of the support plate 41. One side of the third limiting strip 42 is fixedly connected to the inner side wall of the storage tank 4.

[0030] In use, the third limiting strip 42 is inserted into the third limiting groove 161. At this time, the bottom of the side plate 16 and the support plate 41 abut against each other. In other words, the support plate 41 supports the side plate 16, thereby detachably fixing the heat exchange plate 1 inside the storage tank 4.

[0031] Please combine Figures 1-3 The coolant inlet pipe 2 and the inlet pipe 11 are sealed and connected. The coolant inlet pipe 2 passes through the storage tank 4 and extends to the outside of the storage tank 4. The connection between the coolant inlet pipe 2 and the storage tank 4 is sealed to prevent electrolyte leakage from the connection. The coolant outlet pipe 3 and the outlet pipe 12 of the heat exchange plate 1 are sealed and connected. The coolant outlet pipe 3 passes through the storage tank 4 and extends to the outside of the storage tank 4. The coolant outlet pipe 3 and the storage tank 4 are sealed and connected.

[0032] In use, the coolant flows from the coolant inlet pipe 2 into the second manifold 14, then splits from the second manifold 14 into each flat pipe 15, and then flows from each flat pipe 15 into the coolant outlet pipe 3, finally flowing out from the coolant outlet pipe 3. During this process, the coolant absorbs heat from the electrolyte in the flat pipes 15, thus cooling the coolant.

[0033] When a single heat exchanger 1 is insufficient to cool the coolant, multiple heat exchangers 1 can be connected in parallel. The structure of the heat exchangers 1 used for parallel connection is similar to that of the heat exchanger 1 described above, except that the parallel heat exchangers 1 do not have side plates 16. Please refer to [the relevant documentation] when using this system. Figure 3 and Figure 4The first limiting strip 131 of the first heat exchanger 1 is inserted into the first limiting groove 132 of the second heat exchanger 1, and then the second limiting strip 141 of the second heat exchanger 1 is inserted into the second limiting groove 142 of the first heat exchanger 1. Since the storage tank 4 is mostly cylindrical, the width of the heat exchanger 1 on both sides can be smaller than the width of the central heat exchanger 1. To prevent relative sliding between the heat exchanger 1, such as... Figure 5 As shown, a threaded hole 143 can be started in the second limiting groove 142, and a bolt 144 can be screwed into the threaded hole 143. After installation, the bolt 144 abuts against the second limiting groove 142. Finally, the third limiting strip 42 is inserted into the third limiting groove 161, so that all the heat exchange plates 1 are installed in the storage tank 4.

[0034] It should be noted that the first manifolds 13 and the second manifolds 14 of each heat exchanger 1 are not connected. Therefore, it is necessary to select coolant inlet pipes 2 with different numbers of connectors, that is, to ensure that the number of connectors is the same as the number of inlet pipes 11. Figure 3 As shown, there are three inlet pipes 11. Therefore, a coolant inlet pipe 2 with three connectors needs to be selected, with each connector sealingly connected to one inlet pipe 11. When the number of heat exchange fins 1 is increased or decreased, the coolant inlet pipe 2 needs to be replaced again. The number of connectors on the coolant inlet pipe 2 should be the same as the number of inlet pipes 11. It is understood that the coolant outlet pipe 3 also needs to be selected and installed in the same manner as described above, which will not be repeated here.

[0035] In use, coolant is injected into heat exchange plate 1 through coolant inlet pipe 2. The coolant absorbs heat from the electrolyte in flat tube 15, cooling the electrolyte, and then flows out through coolant outlet pipe 3.

[0036] Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A flow battery energy storage heat exchange device, characterized in that, It includes heat exchange fins (1), coolant inlet pipe (2) and coolant outlet pipe (3); The heat exchange plate (1) is installed inside the storage tank (4), and the heat exchange plate (1) and the storage tank (4) are detachably connected; The coolant inlet pipe (2) and the inlet pipe (11) of the heat exchange plate (1) are sealed and connected. The coolant inlet pipe (2) extends through the storage tank (4) to the outside of the storage tank (4). The coolant inlet pipe (2) and the storage tank (4) are sealed and connected. The coolant discharge pipe (3) and the outlet pipe (12) of the heat exchange plate (1) are sealed and connected. The coolant discharge pipe (3) extends through the storage tank (4) to the outside of the storage tank (4). The coolant discharge pipe (3) and the storage tank (4) are sealed and connected.

2. The flow battery energy storage heat exchange device according to claim 1, characterized in that, The heat exchange plate (1) includes a first manifold (13), a second manifold (14) and multiple flat tubes (15). The first manifold (13) and the second manifold (14) are arranged in parallel and at intervals; A first limiting strip (131) is fixed on one side of the first collecting pipe (13), and a first limiting groove (132) is opened on the other side of the first collecting pipe (13). The first limiting groove (132) and the first limiting strip (131) are arranged opposite to each other, and the first collecting pipe (13) and the liquid outlet pipe (12) are sealed and connected. A second limiting strip (141) is fixed on one side of the second manifold (14), and a second limiting groove (142) is opened on the other side of the second manifold (14). The second limiting groove (142) and the second limiting strip (141) are arranged opposite to each other, and the second manifold (14) and the liquid inlet pipe (11) are sealed and connected. Multiple flat tubes (15) are equally spaced between the first manifold (13) and the second manifold (14), and the two ends of the flat tubes (15) are respectively connected to the first manifold (13) and the second manifold (14).

3. The flow battery energy storage heat exchange device according to claim 2, characterized in that, The heat exchange plate (1) also includes a side plate (16), one end of which is fixedly connected to the first manifold (13), and the other end of which is fixedly connected to the second manifold (14). A third limiting groove (161) is provided in the length direction of the side plate (16).

4. The flow battery energy storage heat exchange device according to claim 3, characterized in that, The storage tank (4) is fixedly provided with a support plate (41) on the inside. A third limiting strip (42) is fixedly provided on the top of the support plate (41). The third limiting strip (42) extends along the axis of the storage tank (4). The third limiting strip (42) is engaged in the third limiting groove (161). The bottom of the side plate (16) abuts against the support plate (41).

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