Production and storage equipment for flow battery electrolyte

Abstract

The utility model discloses production and storage equipment for flow battery electrolyte, which comprises a protective shell, the protective shell is a cavity shell with a cast steel structure, a buffer storage tank is arranged in the protective shell, a filling port is arranged on the protective shell, a feeding port extends out of the buffer storage tank and is coaxially arranged on the filling port, and the buffer storage tank and the filling port are communicated with each other. A storage tank temperature adjusting mechanism is arranged on the protective shell; the utility model relates to the technical field of electrolyte storage equipment, in particular to production and storage equipment for electrolyte of a flow battery, which adopts the design of the electrolyte storage tank with a double-layer structure, and the heat insulation blocks which are annularly arranged are arranged between the double-layer annular space of the electrolyte storage tank, so that an isolation effect is achieved, and the temperature in the storage tank is prevented from being influenced by external temperature change; the heat exchanger arranged on the top cover uses the heat conduction oil in the annulus as a medium, the temperature of the inner storage tank is adjusted, the temperature of the electrolyte is accurately adjusted, the requirement for the temperature of the warehouse is lowered, the temperature control effect is better, and more energy is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrolyte storage equipment, in particular to a production and storage device for the electrolyte of a flow battery. Background Technique

[0002] In the modern new energy industry, power storage equipment has always been a thorny problem. The all-vanadium flow battery is an energy storage device with vanadium ions as active substances. Due to its advantages such as high efficiency, high safety, and high energy efficiency, it is being widely concerned and used.

[0003] The electrolyte of the flow battery is the carrier for ion transport in the flow battery. In the current preparation process, in order to improve efficiency, batch manufacturing is often adopted, and then centralized storage is used for preservation, and sub-packaging injection is carried out during the battery production process.

[0004] Therefore, in the modern production process of flow batteries, tanks with good sealing performance are often used. Special attention needs to be paid to the temperature during storage. At present, the flow batteries only have temperature control requirements for the workshop during storage, but there is no temperature control requirement for the storage tank itself. However, the temperature adjustment rate in the workshop is slow and cannot directly act on the storage tank. When the temperature rises near the storage tank, it will still affect the electrolyte in the storage tank, resulting in unstable properties of the electrolyte. In view of this, in-depth research on the above problems has led to the generation of this case. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a production and storage device for the electrolyte of a flow battery, which solves the problems in the existing background technology.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A production and storage device for the electrolyte of a flow battery, including a protective shell, the protective shell is a hollow shell made of cast steel structure, a buffer storage tank is arranged inside the protective shell, a feeding port is arranged on the protective shell, and a feeding port extends from the buffer storage tank and is coaxially arranged on the feeding port, and a storage tank temperature adjustment mechanism is arranged on the protective shell;

[0007] The storage tank temperature adjustment mechanism includes a top cover. The top of the protective shell is an annular opening. The top cover is buckled on the protective shell. A number of filling grooves extend out in an annular array on the top cover. A number of heat insulation bodies are filled in the number of filling grooves. The top cover and the top end of the protective shell are connected by bolts;

[0008] The temperature adjustment mechanism of the storage tank further includes a heat exchange oil layer. A heat exchange oil layer is filled in the annular space between several of the heat insulation bodies and the outer wall of the buffer storage tank. A temperature sensor is arranged on the top cover and extends into the buffer storage tank. Several temperature control plates are arranged in an annular array on the top cover and extend into the heat exchange oil layer. A heat exchanger is connected to the outer ends of several of the temperature control plates located on the top cover.

[0009] Preferably, the bottom of the buffer storage tank extends out a filling outlet which penetrates through one side wall surface of the buffer storage tank, and a filling control valve is arranged on the filling outlet.

[0010] Preferably, the feeding port is of a pipe structure, the end of the feeding port is of a threaded structure, and a feeding control valve is arranged on the feeding port to control the opening and closing of the feeding port.

[0011] Preferably, at least two pairs of bolts are annularly arranged outside the top cover and are connected to the top end of the protective shell.

[0012] Preferably, several heat exchange grooves are formed on the outer wall of the buffer storage tank to increase the contact area with the heat exchange oil layer.

[0013] Preferably, several of the filling grooves are several arc-shaped sector plates, and several limiting insertion blocks are arranged on the inner wall of the protective shell corresponding to the gaps between several of the filling grooves.

[0014] Beneficial effects

[0015] The present utility model provides a production and storage device for a liquid flow battery electrolyte. The following beneficial effects are achieved: The production and storage device for the liquid flow battery electrolyte adopts a double-layer structure design for the electrolyte storage tank. Heat insulation blocks arranged in an annular array are provided between the double-layer annulus of the electrolyte storage tank to strengthen the support for the outer protective shell and play an isolation role, avoiding the influence of external temperature changes on the temperature inside the storage tank. Furthermore, a heat exchanger arranged on the top cover uses the heat-conducting oil in the annulus as a medium to precisely adjust the temperature of the electrolyte, reducing the requirement for the temperature of the warehouse, and having a better temperature control effect and being more energy-saving. Description of the drawings

[0016] Figure 1 It is a three-dimensional explosion structure schematic diagram of a production and storage device for a liquid flow battery electrolyte according to the present utility model.

[0017] Figure 2 It is a first three-dimensional structure schematic diagram of a production and storage device for a liquid flow battery electrolyte according to the present utility model.

[0018] Figure 3 It is a second three-dimensional structure schematic diagram of a production and storage device for a liquid flow battery electrolyte according to the present utility model.

[0019] Figure 4The sectional structural schematic diagram of a production and storage device for an electrolyte of a flow battery according to the present utility model.

[0020] In the figure: 1, protective outer shell; 2, buffer storage tank; 3, charging port; 4, feeding port; 5, filling outlet; 6, filling control valve; 7, feeding control valve; 8, top cover; 9, filling tank; 10, heat insulation body; 11, heat exchange oil layer; 12, temperature sensor; 13, temperature control sheet; 14, heat exchanger; 15, heat exchange tank. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-4 , the present utility model provides an implementation solution: In modern flow batteries, the electrolyte is an important raw material. During the production process of the flow battery electrolyte, it is necessary to temporarily store the electrolyte to facilitate subsequent split filling. At present, closed containers are mainly used for storing the electrolyte. However, during the storage process of the electrolyte, it is necessary to precisely control the temperature and humidity. At present, the temperature of the workshop is mainly regulated. However, this regulation method cannot directly act on the electrolyte storage container, and the local temperature regulation effect is poor, which is likely to cause inaccurate temperature control of the electrolyte.

[0023] In view of the above problems, the present application discloses a production and storage device for a flow battery electrolyte, which is specifically divided into two layers and is composed of a protective outer shell 1 and a buffer storage tank 2. The above protective outer shell 1 is a cavity shell made of cast steel structure. The cast steel protective outer shell 1 is used for external protection. Since the cast steel material has high structural strength, the structural strength of the protective outer shell 1 is also high. The buffer storage tank 2 is arranged inside the protective outer shell 1, and the buffer storage tank 2 is used as a specific container to store the electrolyte. Furthermore, a charging port 3 is provided on the protective outer shell 1, and a feeding port 4 extending from the buffer storage tank 2 is coaxially arranged on the charging port 3. The feeding port 4 is wrapped and protected by the charging port 3. The electrolyte can be injected into the buffer storage tank 2 through the feeding port 4. A storage tank temperature regulating mechanism is provided on the protective outer shell 1, and the buffer storage tank 2 can be independently temperature-regulated by using the storage tank temperature regulating mechanism;

[0024] According to the instruction manual appendix Figures 1-4It can be known that the above-mentioned temperature adjustment mechanism of the storage tank includes a top cover 8. The top of the protective shell 1 is an annular opening, and thus the top cover 8 is buckled on the protective shell 1. A number of filling grooves 9 extend out in an annular array on the top cover 8, and a number of heat insulation bodies 10 are filled in the a number of filling grooves 9. The top cover 8 and the top end of the protective shell 1 are connected by bolts. The top cover 8 is fixed by reverse pulling through the bolt structure, and the annulus between the protective shell 1 and the buffer storage tank 2 is closed. Then, a number of heat insulation bodies 10 are installed through the a number of filling grooves 9, ensuring that the a number of heat insulation bodies 10 wrap the buffer storage tank 2 body in the center as much as possible, thereby playing a role in isolating the internal and external temperatures. At the same time, the a number of filling grooves 9 play a role in installing the a number of heat insulation bodies 10, facilitating replacement and maintenance;

[0025] According to the attached drawings of the specification Figures 1-4 It can be known that the above-mentioned temperature adjustment mechanism of the storage tank further includes a heat exchange oil layer 11. A heat exchange oil layer 11 is filled in the annulus between the a number of heat insulation bodies 10 and the outer wall of the buffer storage tank 2. A temperature sensor 12 is arranged on the top cover 8, and the temperature sensor 12 extends into the buffer storage tank 2. A number of temperature control chips 13 are arranged in an annular array on the top cover 8 and extend into the heat exchange oil layer 11. A number of temperature control chips are connected with a heat exchanger 14 at the outer end of the top cover 8;

[0026] In the specific implementation process, the heat exchange oil layer 11 is filled between the buffer storage tank 2 and the protective shell 1. Using the heat exchange oil layer 11 as a heat exchange material, the temperature in the buffer storage tank 2 is detected by the temperature sensor 12, so as to control the temperature of a number of temperature control chips by the heat exchanger 14. Then, through the contact between the temperature control chips and the heat exchange oil layer 11, the heat absorption effect is realized, and the temperature in the buffer storage tank 2 is regulated by the heat exchange oil layer 11. By adopting a structure similar to an oil bath to adjust the temperature of the inner buffer storage tank 2, the storage tank is provided with a separate temperature adjustment system to avoid the influence of local external high temperature on the storage tank, resulting in the influence on the performance of the electrolyte.

[0027] As a preferred solution, further, a filling outlet 5 extends out from the bottom of the buffer storage tank 2 and penetrates through a side wall surface of the buffer storage tank 2. A filling control valve 6 is arranged on the filling outlet 5. By switching the filling control valve 6, the opening and closing of the filling outlet 5 can be controlled, thereby realizing filling.

[0028] As a preferred solution, further, the charging port 3 is of a pipe structure, and the end of the charging port 3 is of a threaded structure. A feed control valve 7 is arranged on the charging port 3 to control the opening and closing of the charging port 3. The feed port 4 and the pipeline of the electrolyte production equipment can be connected through a threaded structure. By switching the feed control valve 7, the charging port 3 can be opened to facilitate the entry of the electrolyte.

[0029] As a preferred solution, further, at least two pairs of bolts are annularly arranged outside the top cover 8 and are connected to the top end of the protective shell 1, facilitating the disassembly and assembly of the top cover 8.

[0030] As a preferred solution, further, a number of heat exchange grooves 15 are formed on the outer wall of the buffer storage tank 2 to increase the contact area with the heat exchange oil layer 11 and improve the heat exchange efficiency.

[0031] As a preferred solution, further, a number of filling grooves 9 are a number of arc-segment-shaped plates, and a number of limiting insertion blocks are arranged on the inner wall of the protective outer shell 1 corresponding to the gaps between the a number of filling grooves 9. The a number of filling grooves 9 and the a number of limiting insertion blocks are arranged at intervals to ensure the structural integrity inside the protective outer shell 1.

[0032] In summary, generally speaking, for the production and storage equipment of the liquid flow battery electrolyte, a double-layer structure of the electrolyte storage tank is adopted. Insulation blocks are arranged in a ring array between the double-layer annulus of the electrolyte storage tank to strengthen the support of the outer protective outer shell 1 and achieve an isolation effect, avoiding the influence of external temperature changes on the temperature inside the storage tank. Furthermore, a heat exchanger 14 is arranged on the top cover 8, using the heat-conducting oil in the annulus as a medium to adjust the temperature of the inner storage tank, precisely adjusting the temperature of the electrolyte, reducing the requirement for the temperature of the warehouse, and achieving better temperature control effect and more energy-saving.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A production and storage device for the electrolyte of a flow battery, comprising a protective housing (1), the protective housing (1) being a cavity housing made of cast steel structure, a buffer storage tank (2) being arranged inside the protective housing (1), a charging port (3) being provided on the protective housing (1), and a feed inlet (4) extending from the buffer storage tank (2) being coaxially arranged on the charging port (3), characterized in that, A storage tank temperature regulating mechanism is provided on the protective housing (1). The storage tank temperature regulating mechanism includes a top cover (8). The top of the protective housing (1) is an annular opening, and the top cover (8) is buckled on the protective housing (1). A number of filling grooves (9) extend out in an annular array on the top cover (8), and a number of heat insulation bodies (10) are filled in the a number of filling grooves (9). The top cover (8) and the top end of the protective housing (1) are connected by bolts. The storage tank temperature regulating mechanism further includes a heat exchange oil layer (11). A heat exchange oil layer (11) is filled in the annular space between a number of the heat insulation bodies (10) and the outer wall of the buffer storage tank (2). A temperature sensor (12) is provided on the top cover (8), and the temperature sensor (12) extends into the buffer storage tank (2). A number of temperature control plates (13) are arranged in an annular array on the top cover (8) and extend into the heat exchange oil layer (11). A heat exchanger (14) is connected to the outer ends of a number of the temperature control plates located on the top cover (8).

2. The production and storage equipment for the electrolyte of a flow battery according to claim 1, characterized in that, A filling outlet (5) extends out from the bottom of the buffer storage tank (2) and penetrates through a side wall surface of the buffer storage tank (2), and a filling control valve (6) is provided on the filling outlet (5).

3. The production and storage device for the electrolyte of a flow battery according to claim 2, characterized in that, The charging port (3) is of a pipe structure, the end of the charging port (3) is a threaded structure, and a feed control valve (7) is provided on the charging port (3) to control the opening and closing of the charging port (3).

4. The production and storage equipment for the electrolyte of a flow battery according to claim 3, characterized in that, At least two pairs of bolts are annularly arranged outside the top cover (8) to connect with the top end of the protective housing (1).

5. The production and storage equipment for the electrolyte of a flow battery according to claim 4, characterized in that A number of heat exchange grooves (15) are provided on the outer wall of the buffer storage tank (2) to increase the contact area with the heat exchange oil layer (11).

6. The production and storage device for the electrolyte of a flow battery according to claim 5, characterized in that, A number of the filling grooves (9) are a number of arc-segment-shaped plates, and a number of limit insertion blocks are provided on the inner wall of the protective housing (1) corresponding to the gaps between a number of the filling grooves (9).

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