Low-temperature-resistant and efficiency-improving structure of flow battery

Abstract

The utility model discloses a low-temperature-resistant and efficiency-improving structure of a flow battery. The low-temperature-resistant and efficiency-improving structure comprises an end plate, a heating mechanism, a single battery pack, a connecting bolt, a heat preservation seat assembly, heat preservation cloth and a nylon velvet strip, the three groups of heating mechanisms are positioned between the pair of end plates; the single battery pack is positioned between the pair of heating mechanisms; the connecting bolts penetrate through the pair of end plates, and the two pairs of connecting bolts are screwed with nuts; the heat preservation base assembly is connected to the bottoms of the pair of end plates. Nylon hook belts are arranged at the two ends of the heat preservation cloth; the nylon velvet strips are arranged on one side of the end plate. A pair of end plates are assembled with a plurality of single battery packs to form a main structure of the redox flow battery stack, meanwhile, the heating mechanisms are alternately placed between the end plates and the single battery packs, heat can be effectively transferred into the single battery packs, the temperature is increased, and the heat preservation seat assembly can blow warm air from the lower part of the stack to the upper part of the stack, so that the heat at the bottom of the stack is increased; the method is crucial to the performance and the service life of the battery.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid flow batteries, and in particular relates to a structure for a liquid flow battery to resist low temperatures and improve efficiency. Background Art

[0002] Flow batteries are an advanced electrochemical energy storage technology. The main difference between them and traditional batteries is that the electrolyte is stored in liquid form in a tank outside the battery and is circulated through the battery by a pump for charging and discharging.

[0003] Liquid flow batteries operating in cold weather or cold areas will experience adverse effects such as increased electrolyte viscosity and decreased electrochemical reaction rate due to low temperatures. Therefore, there is an urgent need for a liquid flow battery structure that can effectively resist low temperatures. Utility Model Content

[0004] Based on the above technical problems, the utility model provides a structure of a flow battery that can resist low temperatures and improve efficiency.

[0005] The specific technical solution is:

[0006] A structure for a flow battery to resist low temperatures and improve efficiency, comprising:

[0007] end plates;

[0008] Heating mechanisms, wherein the three groups of heating mechanisms are all located between a pair of end plates;

[0009] a single battery pack, the single battery pack being located between a pair of heating mechanisms;

[0010] Connecting bolts, the connecting bolts passing through a pair of end plates, the two pairs of connecting bolts being screwed with nuts;

[0011] A heat preservation seat assembly connected to the bottom of a pair of end plates;

[0012] Insulation cloth, both ends of the insulation cloth are provided with nylon hook strips;

[0013] Nylon velvet belts, wherein a plurality of the nylon velvet belts are arranged on one side of the end plate.

[0014] In the above technical solution, the heating mechanism includes:

[0015] A heating seat, one side of which is provided with a heating groove, wherein three groups of the heating seats are located between a pair of end plates and a pair of single battery groups;

[0016] A heat exchange plate, the heat exchange plate is inserted into the heating tank, a heating tank is opened in the heat exchange plate, a coil tank is opened in the heat exchange plate, and a water inlet pipe and a water outlet pipe are connected to the top of the heat exchange plate;

[0017] The top plate, the water inlet pipe and the water outlet pipe are both passed through the top plate, both ends of the top plate are connected to electric heating rods, the electric heating rods are inserted into the heating tank, the top plate is connected to the top of the heat exchange plate, and the top plate is connected to the top of the heating seat.

[0018] In the above technical solution, the heat preservation seat assembly includes:

[0019] base;

[0020] A pair of U-shaped frames, each of which is fixedly mounted on the top of the base;

[0021] an intermediate frame connected between the pair of U-shaped frames;

[0022] Fans, a pair of fans are fixedly mounted on the top of the base;

[0023] A heating coil is connected to the base and is located below the fan.

[0024] The above technical solution also includes:

[0025] A pair of limiting slides, each of which is connected to one side of the end plate;

[0026] A pair of limiting slide rails are fixedly mounted on the inner wall of the U-shaped frame, and the limiting slide rails are slidably connected in the limiting slide groove;

[0027] A pair of limit blocks are fixedly installed on the top of the U-shaped frame.

[0028] The above technical solution also includes:

[0029] A dustproof net is connected to the bottom of the base.

[0030] The above technical solution also includes:

[0031] A pair of guide posts are fixedly installed in the heating tank, and the heat exchange plate is provided with a pair of guide holes. The guide posts slide in the guide holes.

[0032] The utility model discloses a structure for a flow battery that resists low temperatures and improves efficiency. Compared with the prior art, the beneficial effects are as follows:

[0033] The main structure of the flow battery stack is composed of several single battery groups assembled through a pair of end plates. At the same time, the heating mechanism is interspersed between the end plates and the single battery groups, which can effectively transfer heat to the single battery groups to increase the temperature. The insulation seat assembly can blow warm air from the bottom of the battery stack to the top, so that the heat at the bottom of the battery stack is increased to prevent the temperature from being too low. The heating assembly contains electric heating and circulating water. The electric heating can store part of the heat in the circulating water. The thermal inertia of the water makes the temperature change smoother, which helps to maintain the battery stack within a stable temperature range, which is crucial to the performance and life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic side view of the structure of a flow battery for improving low temperature resistance and efficiency according to the present invention;

[0035] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0036] Figure 3 This is a bottom view schematic diagram of the utility model;

[0037] Figure 4 It is a schematic diagram of the utility model;

[0038] Figure 5 It is a bottom view schematic diagram of the present invention.

[0039] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0040] 1. End plate; 2. Connecting bolts; 3. Insulation cloth; 4. Heating base; 5. Heat exchange plate; 6. Coil slot; 7. Top plate; 8. Heating rod; 9. Base; 10. U-shaped frame; 11. Middle frame; 12. Fan; 13. Heating coil; 14. Limit slide; 15. Limit rail; 16. Limit block; 17. Dust screen; 18. Guide column. DETAILED DESCRIPTION

[0041] The following is a combination of specific implementation cases and attached Figure 1-5 The present invention will be further described below, but the present invention is not limited to these embodiments.

[0042] The utility model discloses a structure for a liquid flow battery to resist low temperatures and improve efficiency, comprising: an end plate 1, a heating mechanism, a single battery group, a connecting bolt 2, a heat-insulating seat assembly, a heat-insulating cloth 3 and a nylon velvet belt; the three groups of heating mechanisms are all located between a pair of end plates 1; the single battery group is located between the pair of heating mechanisms; the connecting bolt 2 passes through the pair of end plates 1, and two pairs of the connecting bolts 2 are screwed with nuts; the heat-insulating seat assembly is connected to the bottom of the pair of end plates 1; nylon hook belts are provided at both ends of the heat-insulating cloth 3; and a plurality of nylon velvet belts are provided on one side of the end plate 1.

[0043] In the embodiment of the present utility model, as Figure 1-5 As shown, the heating mechanism includes: a heating seat 4, a heat exchange plate 5 and a top plate 7; a heating groove is opened on one side of the heating seat 4, and three groups of heating seats 4 are located between a pair of end plates 1 and a pair of single battery groups; the heat exchange plate 5 is inserted into the heating groove, a heating groove is opened in the heat exchange plate 5, a coil groove 6 is opened in the heat exchange plate 5, and a water inlet pipe and a water outlet pipe are connected to the top of the heat exchange plate 5; the water inlet pipe and the water outlet pipe are both passed through the top plate 7, and electric heating rods 8 are connected at both ends of the top plate 7, and the electric heating rods 8 are both inserted into the heating groove, the top plate 7 is connected to the top of the heat exchange plate 5, and the top plate 7 is connected to the top of the heating seat 4.

[0044] In the embodiment of the present utility model, as Figure 1-5 As shown, the insulation seat assembly includes: a base 9, a U-shaped frame 10, an intermediate frame 11, a fan 12 and a heating coil 13; a pair of U-shaped frames 10 are fixedly installed on the top of the base 9; the intermediate frame 11 is connected between the pair of U-shaped frames 10; a pair of fans 12 are fixedly installed on the top of the base 9; the heating coil 13 is connected to the base 9, and the heating coil 13 is located below the fan 12.

[0045] In the embodiment of the present utility model, as Figure 1-5 As shown, it also includes: a limiting slide 14, a limiting slide rail 15 and a limiting block 16; a pair of limiting slides 14 are connected to one side of the end plate 1; a pair of limiting slide rails 15 are fixedly installed on the inner wall of the U-shaped frame 10, and the limiting slide rails 15 are slidably connected in the limiting slide groove; a pair of limiting blocks 16 are fixedly installed on the top of the U-shaped frame 10.

[0046] In the embodiment of the present utility model, as Figure 1-5 As shown, it also includes: a dustproof net 17; the dustproof net 17 is connected to the bottom of the base 9.

[0047] In the embodiment of the present utility model, as Figure 1-5 As shown, the heat exchange plate 5 further includes: a pair of guide posts 18; a pair of guide posts 18 are fixedly installed in the heating tank, and a pair of guide holes are opened in the heat exchange plate 5. The guide posts 18 slide in the guide holes.

[0048] Implementation process: When supplying heat, first introduce circulating water from the water inlet pipe on the top of the heat exchange plate 5 and discharge it from the water outlet pipe. The circulating water needs to be heated and circulated by external heating equipment and water pumps. At the same time, the electric heating rod 8 is started to increase the temperature of the heat exchange plate 5 and the water temperature in the coil tank 6. When the temperature of the heat exchange plate 5 increases, the temperature of the electrolyte in the battery stack will also increase to prevent the electrolyte temperature from being too low. During this process, the temperature of the electrolyte can be monitored by installing a temperature sensor. , preventing it from overcooling and overheating, and starting the heating coil 13 and the fan 12 at the same time. Since the heating coil 13 is an electric heating tube and is located at the suction end of the fan 12, the fan 12 blows warm air to the bottom of the battery stack to keep it warm. When it needs to be disassembled, the battery stack structure can be lifted from above. If the heat exchange plate 5 needs to be replaced, the connecting bolt 2 in the middle needs to be removed. The insulation cloth 3 can insulate the side direction of the battery stack, making the anti-low temperature effect more comprehensive and improving efficiency.

[0049] In the description of the present invention, the term "plurality" refers to two or more than two. Unless otherwise expressly defined, the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are intended only to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connect," "install," and "fix" should be understood in a broad sense. For example, "connection" can mean a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0050] In the description of this utility model, the terms "one embodiment," "some embodiments," "specific embodiments," etc., mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the utility model. In this utility model, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A structure for a flow battery to resist low temperatures and improve efficiency, characterized in that: include: end plates; Heating mechanisms, wherein the three groups of heating mechanisms are all located between a pair of end plates; a single battery pack, the single battery pack being located between a pair of heating mechanisms; Connecting bolts, the connecting bolts passing through a pair of end plates, the two pairs of connecting bolts being screwed with nuts; A heat preservation seat assembly connected to the bottom of a pair of end plates; Insulation cloth, both ends of the insulation cloth are provided with nylon hook strips; Nylon velvet belts, wherein a plurality of the nylon velvet belts are arranged on one side of the end plate.

2. The structure for improving the efficiency of a flow battery against low temperatures according to claim 1, characterized in that: The heating mechanism comprises: A heating seat, one side of which is provided with a heating groove, wherein three groups of the heating seats are located between a pair of end plates and a pair of single battery groups; A heat exchange plate, the heat exchange plate is inserted into the heating tank, a heating tank is opened in the heat exchange plate, a coil tank is opened in the heat exchange plate, and a water inlet pipe and a water outlet pipe are connected to the top of the heat exchange plate; The top plate, the water inlet pipe and the water outlet pipe are both passed through the top plate, both ends of the top plate are connected to electric heating rods, the electric heating rods are inserted into the heating tank, the top plate is connected to the top of the heat exchange plate, and the top plate is connected to the top of the heating seat.

3. The structure for improving the efficiency of a flow battery against low temperatures according to claim 1, characterized in that: The heat preservation seat assembly includes: base; A pair of U-shaped frames, each of which is fixedly mounted on the top of the base; an intermediate frame connected between the pair of U-shaped frames; Fans, a pair of fans are fixedly mounted on the top of the base; A heating coil is connected to the base and is located below the fan.

4. The structure for improving the efficiency of a flow battery against low temperatures according to claim 1, characterized in that: Also includes: A pair of limiting slides, each of which is connected to one side of the end plate; A pair of limiting slide rails are fixedly mounted on the inner wall of the U-shaped frame, and the limiting slide rails are slidably connected in the limiting slide groove; A pair of limit blocks are fixedly installed on the top of the U-shaped frame.

5. The structure for improving the efficiency of a flow battery against low temperatures according to claim 1, characterized in that: Also includes: A dustproof net is connected to the bottom of the base.

6. The structure for improving the efficiency of a flow battery against low temperatures according to claim 2, characterized in that: Also includes: A pair of guide posts are fixedly installed in the heating tank, and the heat exchange plate is provided with a pair of guide holes, and the guide posts slide in the guide holes.

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