Novel energy storage battery acid storage device

Abstract

The utility model relates to a novel energy storage battery acid storage device which comprises an outer heat preservation tank body, a temperature constant-temperature structure is arranged at the bottom of the outer heat preservation tank body, and the temperature constant-temperature structure comprises a ventilation hood, a ventilation pipe, an annular air pipe, an air nozzle, an equipment base, a fan, an air heating box, an electric heating wire, an air filter box and a filter element. According to the novel acid storage device of the energy storage battery, air is firstly filtered through the air filter box to remove dust and impurities possibly polluting electrolyte, then the air is heated by the electric heating wire to reach the required temperature, and the heated air enters the outer heat preservation tank body through the annular air pipe and the air tap to exchange with air in the outer heat preservation tank body, so that the energy storage battery can be used for storing acid. Or filtered air is directly fed into the outer heat preservation tank body without being heated, so that the temperature of the acid storage tank body is adjusted and maintained, in this way, the temperature of the electrolyte can be kept at a relatively stable level, and performance reduction caused by temperature fluctuation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a novel acid storage device for energy storage batteries. Background Art

[0002] At present, energy storage lead-carbon batteries have a very wide range of applications. Photovoltaic and wind power generation have the characteristics of volatility, intermittency, and uncontrollability, so they are widely used in photovoltaic and wind energy storage. In the production process of lead-acid batteries, sulfuric acid electrolyte needs to be added to the battery. In the battery acid adding and charging process, due to the battery volume problem (the shell also requires a higher specific energy), the battery cannot be fully filled with the formed sulfuric acid electrolyte. Therefore, after adding acid, an acid pot needs to be inserted, which is the energy storage battery acid storage device.

[0003] However, the electrolyte storage tank involved in the above utility model patent does not have a constant temperature effect, and the energy storage battery acid storage device is often unable to add the electrolyte inside it completely into the battery at one time, and the remaining electrolyte still needs to be temporarily stored. The storage temperature has a significant impact on the performance of the electrolyte. For energy storage battery electrolytes, they usually contain organic solvents, such as alkyl carbonates. These solvents have a high dielectric constant and low viscosity and are sensitive to temperature changes. At excessively high temperatures, the electrolyte may decompose, reducing the performance and safety of the battery. At low temperatures, the viscosity of the electrolyte will increase and the conductivity will decrease, which will affect the charging and discharging efficiency and power output of the battery. Therefore, a new energy storage battery acid storage device is proposed to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a novel acid storage device for energy storage batteries, which has the advantage of a constant temperature effect and solves the problem of not having a constant temperature effect. In many cases, the acid storage device for energy storage batteries cannot completely add the electrolyte inside it into the battery at one time, and the remaining electrolyte still needs to be temporarily stored. The storage temperature has a significant effect on the performance of the electrolyte. For energy storage battery electrolytes, they usually contain organic solvents, such as alkyl carbonates. These solvents have a high dielectric constant and a low viscosity and are sensitive to temperature changes. At excessively high temperatures, the electrolyte may decompose, reducing the performance and safety of the battery. At low temperatures, the viscosity of the electrolyte will increase and the conductivity will decrease, which will affect the charging and discharging efficiency and power output of the battery.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel energy storage battery acid storage device, comprising an outer insulation tank body, a top cover is movably installed on the top of the outer insulation tank body, a temperature constant temperature structure is arranged at the bottom of the outer insulation tank body, and an acid storage structure is arranged inside the outer insulation tank body;

[0008] The temperature constant temperature structure includes a ventilation hood, a ventilation pipe, an annular air pipe, an air nozzle, an equipment base, a fan, an air heating box, an electric heating wire, an air filter box and a filter element. The top of the top cover is fixedly installed with a ventilation hood, the top of the top cover is fixedly installed with a number of ventilation pipes, the inner bottom wall of the external insulation tank body is fixedly installed with an annular air pipe, the top of the annular air pipe is fixedly installed with a number of air nozzles, the bottom of the external insulation tank body is fixedly installed with an equipment base, the inside of the equipment base is fixedly installed with a fan, the inside of the equipment base is fixedly installed with an air heating box, the inside of the air heating box is provided with an electric heating wire, the inside of the equipment base is fixedly installed with an air filter box, and the inside of the air filter box is provided with a filter element.

[0009] Furthermore, a limiting base is fixedly installed on the inner bottom wall of the outer thermal insulation tank body, the bottom of the acid storage structure is movably installed with the limiting base, and a thermometer is fixedly installed on the inner right wall of the outer thermal insulation tank body.

[0010] Furthermore, the acid storage structure includes an acid storage tank body, a cover, an anti-detachment limit strip and a sealing ring. The acid storage tank body is arranged inside the outer insulation tank body, the top of the acid storage tank body is threadedly connected with the cover, two anti-detachment limit strips are fixedly installed on the top of the acid storage tank body and are clamped with the cover, a sealing ring is arranged between the bottom of the cover and the outer surface of the top of the acid storage tank body, a battery acid filling valve is fixedly installed on the bottom of the acid storage tank body, and a pressure strip is arranged on the top of the cover.

[0011] Furthermore, the bottoms of several of the ventilation pipes pass through the top cover and extend to the interior of the outer insulation tank body, a dust net is provided on the top of the ventilation hood, a first air pipe extending to the outside of the equipment base is fixedly installed on the right side of the air filter box, and the filter element includes a sponge filter plate and a glass fiber filter plate.

[0012] Furthermore, a second air pipe extending into the interior of the air heating box is fixedly installed on the left side of the air filter box, and a third air pipe is fixedly installed on the front of the fan. The end of the third air pipe away from the fan passes through the left side of the air heating box and extends to the interior of the air heating box.

[0013] Furthermore, a fourth air pipe connected to the third air pipe is fixedly installed on the left side of the air filter box, and a three-way electric valve is provided at the connection between the third air pipe and the fourth air pipe. A fifth air pipe connected to the annular air pipe is fixedly installed on the left side of the fan.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] In this new type of energy storage battery acid storage device, the fan draws in external air, and the air is first filtered through an air filter box to remove dust and impurities that may contaminate the electrolyte. Then, the filtered air is sent to an air heating box, in which an electric heating wire heats the air to reach the required temperature. The heated air enters the outer insulation tank through an annular air pipe and an air nozzle to exchange with the air inside it, or the filtered air is directly sent to the interior of the outer insulation tank without heating, so as to adjust and maintain the temperature of the acid storage tank. In this way, the temperature of the electrolyte can be maintained at a relatively stable level, avoiding performance degradation due to temperature fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the planar structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the temperature constant temperature structure of the utility model;

[0020] Figure 4 For this utility model Figure 2 A in the figure is an enlarged structural diagram.

[0021] In the figure: 1. External insulation tank body; 2. Top cover; 3. Temperature constant temperature structure; 301. Ventilation hood; 302. Ventilation pipe; 303. Annular air pipe; 304. Air nozzle; 305. Equipment base; 306. Fan; 307. Air heating box; 308. Electric heating wire; 309. Air filter box; 310. Filter element; 4. Acid storage structure; 401. Acid storage tank body; 402. Cover; 403. Anti-drop limit strip; 404. Sealing ring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 A novel energy storage battery acid storage device in this embodiment includes an outer heat preservation tank body 1, a top cover 2 is movably installed on the top of the outer heat preservation tank body 1, a temperature constant temperature structure 3 is arranged at the bottom of the outer heat preservation tank body 1, and an acid storage structure 4 is arranged inside the outer heat preservation tank body 1;

[0024] The temperature constant temperature structure 3 includes a ventilation hood 301, a ventilation pipe 302, an annular air pipe 303, an air nozzle 304, an equipment base 305, a fan 306, an air heating box 307, an electric heating wire 308, an air filter box 309 and a filter element 310. The ventilation hood 301 is fixedly installed on the top of the top cover 2, a number of ventilation pipes 302 are fixedly installed on the top of the top cover 2, an annular air pipe 303 is fixedly installed on the inner bottom wall of the external insulation tank body 1, a number of air nozzles 304 are fixedly installed on the top of the annular air pipe 303, an equipment base 305 is fixedly installed on the bottom of the external insulation tank body 1, a fan 306 is fixedly installed inside the equipment base 305, an air heating box 307 is fixedly installed inside the equipment base 305, an electric heating wire 308 is arranged inside the air heating box 307, an air filter box 309 is fixedly installed inside the equipment base 305, and a filter element 310 is arranged inside the air filter box 309.

[0025] Specifically, the acid storage structure 4 includes an acid storage tank body 401, a cover 402, an anti-detachment limiting strip 403 and a sealing ring 404. When adding acid, the acid storage tank body 401 contacts and seals with the battery acid adding valve, which is equivalent to extending the battery space into the acid storage tank body 401 to complete quantitative acid adding. After the acid adding is completed, the cover 402 is connected to the top thread of the acid storage tank body 401 by rotation, and the cover 402 is limited by the anti-detachment limiting strip 403 to prevent it from falling off. Finally, the pressure strip and the cover 402 are tightly plugged together for sealing, and the battery can be charged. If there is unfilled electrolyte remaining in the acid storage tank body 401, the acid storage tank body 401 can be placed in the temperature constant temperature structure 3 for temporary storage to prevent the temperature change from affecting the performance of the electrolyte.

[0026] Specifically, the sponge filter plate and the glass fiber filter plate serve as components of the filter element 310, and are used to filter the air entering the outer insulation tank body 1, thereby protecting the acid storage tank body 401 from the influence of external pollutants. The sponge filter plate is a porous material with good adsorption capacity and filtering effect. In the utility model, the sponge filter plate is mainly used for preliminary filtering of large particles of dust and impurities in the inhaled air. Due to its unique pore structure, the sponge filter plate can effectively intercept suspended particles in the air and reduce the possibility of these substances entering the inner part of the outer insulation tank body 1; the glass fiber filter plate is a filter material made of fine glass fibers, which has high filtering accuracy and good chemical stability. In the utility model, the glass fiber filter plate is used for secondary filtering of the air filtered by the sponge filter plate to remove finer particles and possible harmful chemicals.

[0027] In summary, in the novel energy storage battery acid storage device, the fan 306 draws in external air, and the air is first filtered through the air filter box 309 to remove dust and impurities that may contaminate the electrolyte, and then the filtered air is sent to the air heating box 307, wherein the electric heating wire 308 heats the air to reach the required temperature, and the heated air enters the outer insulation tank body 1 through the annular air pipe 303 and the air nozzle 304 to exchange with the air inside, or the filtered air is directly sent to the interior of the outer insulation tank body 1 without heating, so as to adjust and maintain the temperature of the acid storage tank body 401. In this way, the temperature of the electrolyte can be kept at a relatively stable level. , avoiding the performance degradation caused by temperature fluctuations and solving the problem of lack of constant temperature effect. In many cases, the acid storage device of the energy storage battery cannot completely add the electrolyte inside it to the battery at one time, and the remaining electrolyte still needs to be temporarily stored. The storage temperature has a significant effect on the performance of the electrolyte. For energy storage battery electrolytes, they usually contain organic solvents such as alkyl carbonates. These solvents have high dielectric constants and low viscosity and are sensitive to temperature changes. At excessively high temperatures, the electrolyte may decompose, reducing the performance and safety of the battery. At low temperatures, the viscosity of the electrolyte will increase and the conductivity will decrease, which will affect the battery's charging and discharging efficiency and power output.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel energy storage battery acid storage device, comprising an outer heat-insulating tank body (1), characterized in that: A top cover (2) is movably mounted on the top of the outer heat-insulating tank body (1), a temperature-constant structure (3) is arranged at the bottom of the outer heat-insulating tank body (1), and an acid storage structure (4) is arranged inside the outer heat-insulating tank body (1); The temperature constant temperature structure (3) comprises a ventilation hood (301), a ventilation pipe (302), an annular air pipe (303), an air nozzle (304), an equipment base (305), a fan (306), an air heating box (307), an electric heating wire (308), an air filter box (309) and a filter element (310); the ventilation hood (301) is fixedly mounted on the top of the top cover (2); a plurality of ventilation pipes (302) are fixedly mounted on the top of the top cover (2); an annular air pipe (303) is fixedly mounted on the inner bottom wall of the outer heat-insulating tank body (1); and the annular air pipe A plurality of air nozzles (304) are fixedly mounted on the top of the outer heat-insulating tank (303); a device base (305) is fixedly mounted on the bottom of the outer heat-insulating tank (1); a fan (306) is fixedly mounted inside the device base (305); an air heating box (307) is fixedly mounted inside the device base (305); an electric heating wire (308) is arranged inside the air heating box (307); an air filter box (309) is fixedly mounted inside the device base (305); a filter element (310) is arranged inside the air filter box (309).

2. A novel energy storage battery acid storage device according to claim 1, characterized in that: A limiting base is fixedly mounted on the inner bottom wall of the outer thermal insulation tank body (1), the bottom of the acid storage structure (4) is movably mounted on the limiting base, and a thermometer is fixedly mounted on the inner right wall of the outer thermal insulation tank body (1).

3. A novel energy storage battery acid storage device according to claim 2, characterized in that: The acid storage structure (4) comprises an acid storage tank body (401), a cover (402), an anti-detachment limiting strip (403) and a sealing ring (404); the acid storage tank body (401) is arranged inside the outer heat-insulating tank body (1); the top of the acid storage tank body (401) is threadedly connected with the cover (402); two anti-detachment limiting strips (403) are fixedly installed on the top of the acid storage tank body (401) and are engaged with the cover (402); a sealing ring (404) is arranged between the bottom of the cover (402) and the outer surface of the top of the acid storage tank body (401); a battery acid filling valve is fixedly installed on the bottom of the acid storage tank body (401); and a pressure strip is arranged on the top of the cover (402).

4. A novel energy storage battery acid storage device according to claim 1, characterized in that: The bottoms of the plurality of ventilation pipes (302) all pass through the top cover (2) and extend to the interior of the outer heat-insulating tank body (1); a dustproof net is provided on the top of the ventilation hood (301); a first air pipe extending to the outside of the equipment base (305) is fixedly installed on the right side of the air filter box (309); and the filter element (310) includes a sponge filter plate and a glass fiber filter plate.

5. A novel energy storage battery acid storage device according to claim 1, characterized in that: A second air pipe extending to the interior of the air heating box (307) is fixedly installed on the left side of the air filter box (309), and a third air pipe is fixedly installed on the front of the fan (306). The end of the third air pipe away from the fan (306) passes through the left side of the air heating box (307) and extends to the interior of the air heating box (307).

6. A novel energy storage battery acid storage device according to claim 5, characterized in that: A fourth air pipe connected to the third air pipe is fixedly installed on the left side of the air filter box (309), and a three-way electric valve is provided at the connection between the third air pipe and the fourth air pipe. A fifth air pipe connected to the annular air pipe (303) is fixedly installed on the left side of the fan (306).

Images