CN212542500U - Iron-chromium flow battery system - Google Patents

Abstract

The utility model discloses an iron chromium redox flow battery system, include: the first module comprises a first container, and a positive electrolyte storage tank, a positive heat exchanger and a positive electrolyte delivery pump which are arranged in the first container; the second module comprises a second container, and a negative electrolyte storage tank, a negative heat exchanger and a negative electrolyte delivery pump which are arranged in the second container; the third module comprises a third container, and a heater, an expansion water tank and a water delivery pump which are arranged in the third container, wherein the water delivery pump is respectively connected with the anode heat exchanger and the cathode heat exchanger; the fourth module comprises a fourth container and an iron-chromium flow battery arranged in the fourth container, the positive end of the iron-chromium flow battery is connected with the positive electrolyte delivery pump, and the negative end of the iron-chromium flow battery is connected with the negative electrolyte delivery pump. The utility model discloses an iron chromium redox flow battery system is convenient for transport, can expand in a flexible way.

Description

Iron-chromium flow battery system

Technical Field

The utility model relates to a technical field of redox flow battery energy storage, more specifically relates to an iron chromium redox flow battery system.

Background

In the related technology, the energy storage control system of the iron-chromium flow battery is a novel and safe electrochemical energy storage control system, and has the advantages of safety, environmental protection, high efficiency, long service life, flexible design and the like. Due to the working characteristics of the ferrochrome flow battery, the electrolyte needs to be maintained at a certain temperature for charging and discharging operations, so the electrolyte needs to be heated in the energy storage control system of the ferrochrome flow battery, however, the heating device occupies a large space in the energy storage control system of the ferrochrome flow battery, is not flexible to mount, and has certain potential safety hazards.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the embodiment of the utility model provides a ferro-chromium redox flow battery system, this ferro-chromium redox flow battery system installation is nimble, is convenient for maintain and change.

The iron-chromium flow battery system comprises a first module, wherein the first module comprises a first container, a positive electrolyte storage tank, a positive heat exchanger and a positive electrolyte delivery pump, the positive electrolyte storage tank, the positive heat exchanger and the positive electrolyte delivery pump are all arranged in the first container, and the positive electrolyte storage tank is respectively connected with the positive heat exchanger and the positive electrolyte delivery pump; the second module comprises a second container, a negative electrolyte storage tank, a negative heat exchanger and a negative electrolyte delivery pump, wherein the negative electrolyte storage tank, the negative heat exchanger and the negative electrolyte delivery pump are all arranged in the second container, and the negative electrolyte storage tank is respectively connected with the negative heat exchanger and the negative electrolyte delivery pump; the third module comprises a third container, a heater, an expansion water tank and a water delivery pump, wherein the heater, the expansion water tank and the water delivery pump are all arranged in the third container, the expansion water tank is respectively connected with the heater and the water delivery pump, and the water delivery pump is respectively connected with the positive heat exchanger and the negative heat exchanger; the fourth module, the fourth module includes fourth container and iron chromium flow cell, iron chromium flow cell establishes in the fourth container, iron chromium flow cell's positive terminal with positive electrode electrolyte delivery pump links to each other, iron chromium flow cell's negative pole end with negative electrode electrolyte delivery pump links to each other.

According to the utility model discloses iron chromium redox flow battery system, with anodal electrolyte holding vessel, anodal heat exchanger and anodal electrolyte delivery pump set up and have formed first module in first container, with negative pole electrolyte holding vessel, negative pole heat exchanger and negative pole electrolyte delivery pump set up and have formed the second module in the second container, with the heater, expansion tank and water delivery pump establish in the third container in order to form the third module, establish iron chromium redox flow battery and have formed the fourth module in the fourth container, with being sent to first module and second module after the water heating in the third module, and carry the corresponding utmost point of the battery pile in the fourth module after the electrolyte heating in corresponding electrolyte holding vessel through corresponding heat exchanger respectively, the return water through the heat transfer then returns to the third module and continues to heat, the cycle is used. Therefore, the installation is flexible and the maintenance and the replacement are convenient through the modular design.

In some embodiments, the first container, the second container, and the third container are each provided with at least one fan.

In some embodiments, the first container, the second container and the third container are provided with at least one alarm device for providing an alarm when the temperature of the respective container exceeds a preset temperature, the alarm device corresponding to the fan.

In some embodiments, the fan on each of the first, second, and third containers is plural, the alarm device on each of the first, second, and third containers is plural, and the plural alarm devices on each of the containers and the plural fans on each of the containers correspond to each other.

In some embodiments, the alarm device comprises a temperature sensor for detecting the temperature of the respective container.

In some embodiments, the fans on the respective containers are all turned on when the ratio of the number of alarm devices on any of the first, second, and third containers that issue alerts to the number of alarm devices on the respective container exceeds a preset ratio.

In some embodiments, a first pipe and a second pipe are arranged on the water delivery pump, a first interface and a second interface are arranged on the first pipe, a third interface and a fourth interface are arranged on the second pipe, the first interface and the third interface are respectively connected with the positive heat exchanger, and the second interface and the fourth interface are respectively connected with the negative heat exchanger.

In some embodiments, the first port, the second port, the third port and the fourth port are provided with control valves for opening and closing the first port, the second port, the third port and the fourth port.

In some embodiments, the positive electrolyte storage tank is provided with a positive electrolyte thermometer for detecting the temperature in the positive electrolyte storage tank, and the opening of the control valve is adapted to be adjusted according to the temperature detected by the positive electrolyte thermometer.

In some embodiments, a negative electrolyte thermometer is disposed on the negative electrolyte storage tank for detecting a temperature in the negative electrolyte storage tank, and the opening of the control valve is adapted to be adjusted according to the temperature detected by the negative electrolyte thermometer.

In some embodiments, the first container, the second container, the third container and the fourth container are respectively provided with a flange, and any two containers of the first container, the second container, the third container and the fourth container are detachably connected through the flanges.

In some embodiments, the expansion tank is an open expansion tank.

Drawings

Fig. 1 is a schematic diagram of an iron-chromium flow battery system according to an embodiment of the present invention.

Fig. 2 is a schematic flow diagram of the third module in fig. 1.

Reference numerals:

a first module 100, a first container 10, a positive electrolyte storage tank 11, a positive heat exchanger 12, a positive electrolyte delivery pump 13, a positive electrolyte thermometer 14,

a second module 200, a second container 20, a negative electrolyte storage tank 21, a negative heat exchanger 22, a negative electrolyte delivery pump 23, a negative electrolyte thermometer 24,

a third module 300, a third container 30, a heater 31, an expansion tank 32, a water delivery pump 33, a first pipe 34, a second pipe 35, a reserved port 36, a flow meter 37, a control valve 38, a first interface 331, a second interface 332, a third interface 333, a fourth interface 334,

a fourth module 400, a fourth container 40 and a ferro-chrome flow battery 41.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, an iron-chromium flow battery system according to an embodiment of the present invention includes a first module 100, a second module 200, a third module 300, and a fourth module 400.

The first module 100 includes a first container 10, a positive electrolyte storage tank 11, a positive heat exchanger 12, and a positive electrolyte delivery pump 13. The positive electrolyte storage tank 11, the positive heat exchanger 12 and the positive electrolyte delivery pump 13 are all arranged in the first container 10. The positive electrolyte storage tank 11 is connected to a positive heat exchanger 12 and a positive electrolyte delivery pump 13, respectively. The positive electrode electrolyte storage tank 11 is used for storing positive electrode electrolyte, and the positive electrode heat exchanger 12 is used for heating the positive electrode electrolyte storage tank 11, so that the positive electrode electrolyte is heated, and the positive electrode electrolyte is output through the positive electrode electrolyte delivery pump 13.

The second module 200 includes a second container 20, a negative electrolyte storage tank 21, a negative heat exchanger 22, and a negative electrolyte delivery pump 23. A negative electrolyte storage tank 21, a negative heat exchanger 22, and a negative electrolyte delivery pump 23 are provided in the second container 20. The negative electrode electrolyte storage tank 21 is connected to a negative electrode heat exchanger 22 and a negative electrode electrolyte delivery pump 23, respectively. The negative electrode electrolyte storage tank 21 is used for storing negative electrode electrolyte, and the negative electrode heat exchanger 22 is used for heating the negative electrode electrolyte storage tank 21, so that the negative electrode electrolyte is heated, and the negative electrode electrolyte is output through the negative electrode electrolyte delivery pump 23.

The third module 300 includes a third container 30, a heater 31, an expansion tank 32, and a water transfer pump 33. A heater 31, an expansion tank 32 and a water transfer pump 33 are provided in the third container 30. The expansion tank 32 is connected to the heater 31 and the water feed pump 33, respectively, and the water feed pump 33 is connected to the positive heat exchanger 12 and the negative heat exchanger 22, respectively. The heater 31 is used to heat the water in the expansion tank 32. The water transfer pump 33 transfers hot water into the positive heat exchanger 12 and the negative heat exchanger 22, and the positive heat exchanger 12 and the negative heat exchanger 22 absorb heat and transfer the heat to the respective positive electrolyte storage tank 11 and the negative electrolyte storage tank 21, thereby heating the electrolyte in the electrolyte storage tanks.

The fourth module 400 includes a fourth container 40 and a ferro-chrome flow battery 41, the ferro-chrome flow battery 41 being disposed within the fourth container 40. The positive terminal of the ferrochrome flow battery 41 is connected to the positive electrolyte delivery pump 13, and the negative terminal of the ferrochrome flow battery 41 is connected to the negative electrolyte delivery pump 23. The positive electrolyte delivery pump 13 and the negative electrolyte delivery pump 23 respectively deliver the heated positive and negative electrolytes to the positive electrode and the negative electrode of the ferrochrome flow battery 41, and the ferrochrome flow battery 41 converts the chemical energy of the positive and negative electrolytes into electric energy and stores the electric energy.

According to the utility model discloses iron chromium redox flow battery system, with anodal electrolyte holding vessel, anodal heat exchanger and anodal electrolyte delivery pump set up and have formed first module in first container, with negative pole electrolyte holding vessel, negative pole heat exchanger and negative pole electrolyte delivery pump set up and have formed the second module in the second container, with the heater, expansion tank and water delivery pump establish in the third container in order to form the third module, establish iron chromium redox flow battery and have formed the fourth module in the fourth container, with being sent to first module and second module after the water heating in the third module, and carry the corresponding utmost point of the battery pile in the fourth module after the electrolyte heating in corresponding electrolyte holding vessel through corresponding heat exchanger respectively, the return water through the heat transfer then returns to the third module and continues to heat, the cycle is used. Therefore, the installation is flexible and the maintenance and the replacement are convenient through the modular design. Furthermore, the heater is convenient to transport and maintain, the temperature of the positive and negative electrolyte can be safely and effectively increased and maintained, one set of multipurpose heater can be realized, and the investment is saved.

In some embodiments, the first container 10, the second container 20, and the third container 30 are each provided with at least one fan (not shown). The fan can rapidly cool the first container 10, the second container 20 and the third container 30, avoid temperature, and protect the corresponding modules.

In some embodiments, the first container 10, the second container 20, and the third container 30 are provided with at least one alarm device (not shown) for providing an alert when the temperature of the respective container exceeds a preset temperature, the alarm device corresponding to the fan. The alarm device is connected with the fan through the control system, when the temperature detected by the alarm device exceeds the preset temperature, the alarm device gives an alarm, and the control system turns on the fan connected with the alarm device after receiving the alarm signal to cool the container, wherein the preset temperature is the safe temperature generally set by a person skilled in the art.

Specifically, one alarm device corresponds to one fan. It is to be understood that the present application is not limited to this correspondence for the number of alarm devices and fans.

In some embodiments, there are a plurality of fans on each of the first container 10, the second container 20, and the third container 30, a plurality of alarm devices on each of the first container 10, the second container 20, and the third container 30, and a plurality of alarm devices on each container and a plurality of fans on each container correspond to each other.

The first container 10 is provided with a plurality of fans and a plurality of alarm devices, the fans and the alarm devices are arranged in a one-to-one correspondence manner, the first container 10 is further provided with a control system, the control system is respectively connected with the fans and the alarm devices, and the control system is used for receiving alarm signals of the alarm devices and starting the fans connected with the alarm devices.

The second container 20 is provided with a plurality of fans and a plurality of alarm devices, the plurality of fans and the plurality of alarm devices are arranged in a one-to-one correspondence manner, the second container 20 is further provided with a control system, the control system is respectively connected with the plurality of fans and the plurality of alarm devices, and the control system is used for receiving alarm signals of the alarm devices and starting the fans connected with the alarm devices.

The third container 30 is provided with a plurality of fans and a plurality of alarm devices, the plurality of fans and the plurality of alarm devices are arranged in a one-to-one correspondence manner, the third container 30 is further provided with a control system, the control system is respectively connected with the plurality of fans and the plurality of alarm devices, and the control system is used for receiving alarm signals of the alarm devices and starting the fans connected with the alarm devices.

In some embodiments, the alarm device comprises a temperature sensor for detecting the temperature of the respective container. The temperature sensor transmits the detected temperature to the alarm device, the alarm device compares the temperature with a preset temperature, and when the temperature exceeds the preset temperature, the alarm device sends out an alarm signal.

In some embodiments, the plurality of fans on the respective containers are all turned on when the ratio of the number of alarm devices on any of the first container 10, the second container 20, or the third container 30 that issue a warning to the number of alarm devices on the respective container exceeds a predetermined ratio.

The first container 10 is provided with a plurality of fans and a plurality of alarm devices, the fans and the alarm devices are arranged in a one-to-one correspondence manner, the first container 10 is further provided with a control system, and the control system is respectively connected with the fans and the alarm devices. The control system receives the alarm signals sent by the alarm devices, counts the number of the alarm signals, and starts the fans on the first container 10 when the ratio of the number of the alarm signals to the number of the alarm devices on the first container 10 exceeds a preset ratio. It is understood that the preset ratio is a safety ratio generally set by those skilled in the art, and the preset ratio is set according to the number of the plurality of fans and the actual situation.

The second container 20 is provided with a plurality of fans and a plurality of alarm devices, the plurality of fans and the plurality of alarm devices are arranged in a one-to-one correspondence manner, and the second container 20 is further provided with a control system which is respectively connected with the plurality of fans and the plurality of alarm devices. The control system receives the alarm signals sent by the alarm devices, counts the number of the alarm signals, and turns on the fans on the second container 20 when the ratio of the number of the alarm signals to the number of the alarm devices on the second container 20 exceeds a preset ratio.

The third container 30 is provided with a plurality of fans and a plurality of alarm devices, the plurality of fans and the plurality of alarm devices are arranged in a one-to-one correspondence manner, and the third container 30 is further provided with a control system which is respectively connected with the plurality of fans and the plurality of alarm devices. The control system receives the alarm signals sent by the alarm devices, counts the number of the alarm signals, and starts the fans on the third container 30 when the ratio of the number of the alarm signals to the number of the alarm devices on the third container 30 exceeds a preset ratio.

In some embodiments, the water delivery pump 33 is provided with a first pipe 34 and a second pipe 35, the first pipe 34 is provided with a first interface 331 and a second interface 332, the second pipe 35 is provided with a third interface 333 and a fourth interface 334, the first interface 331 and the third interface 333 are respectively connected to the positive heat exchanger 12, and the second interface 332 and the fourth interface 334 are respectively connected to the negative heat exchanger 22.

The first pipe 34 is a water outlet pipe of the water delivery pump 33, the second pipe 35 is a water inlet pipe of the water delivery pump 33, the first interface 331 and the second interface 332 are water outlet interfaces, and the third interface 333 and the fourth interface 334 are water inlet interfaces. The first port 331 is connected to an inlet of the positive heat exchanger 12, and the third port 333 is connected to an outlet of the positive heat exchanger 12. The second port 332 is connected to an inlet of the cathode heat exchanger 22, and the fourth port 334 is connected to an outlet of the cathode heat exchanger 22.

The first interface 331, the positive heat exchanger 12 and the third interface 333 form a closed loop, the water delivery pump 33 delivers hot water to the positive heat exchanger 12, and returns the heat-exchanged return water to the expansion water tank 32 connected with the water delivery pump 33.

The second interface 332, the negative heat exchanger 22 and the fourth interface 334 form a closed loop, the water delivery pump 33 delivers the hot water to the negative heat exchanger 22, and the returned water after heat exchange returns to the expansion water tank 32 connected to the water delivery pump 33.

In some embodiments, the first port 331, the second port 332, the third port 333, and the fourth port 334 are each provided with a control valve 38, and the control valve 38 is used to open and close the first port 331, the second port 332, the third port 333, and the fourth port 334. The control valve 38 is, for example, a solenoid valve, which is connected to a control system by means of which the opening and closing of the solenoid valve can be remotely controlled.

In some embodiments, the positive electrolyte storage tank 11 is provided with a positive electrolyte thermometer 14 for detecting the temperature within the positive electrolyte storage tank 11, and the opening of the control valve 38 is adapted to be adjusted according to the temperature detected by the positive electrolyte thermometer 14.

The control valve 38, for example, a solenoid valve, is provided between the solenoid valve and the positive electrolyte thermometer 14, and the positive electrolyte thermometer 14 sends the detected temperature to the control system, and the control system controls the degree of opening and closing of the solenoid valve according to the temperature to control the flow rates in the first and third ports 331 and 333, thereby controlling the temperature of the positive electrolyte in the positive electrolyte storage tank 11 so that the positive electrolyte is kept at a constant temperature.

In some embodiments, the negative electrolyte reservoir 21 is provided with a negative electrolyte thermometer 24 for detecting the temperature within the negative electrolyte reservoir 21, and the opening of the control valve 38 is adapted to be adjusted according to the temperature detected by the negative electrolyte thermometer 24.

The control valve 38, for example, a solenoid valve, is provided between the solenoid valve and the negative electrolyte thermometer 24, and the negative electrolyte thermometer 24 sends the detected temperature to the control system, and the control system controls the degree of opening and closing of the solenoid valve according to the temperature to control the flow rates in the second interface 332 and the fourth interface 334, thereby controlling the temperature of the negative electrolyte in the negative electrolyte storage tank 21 so that the negative electrolyte maintains a constant temperature.

In some embodiments, the first container 10, the second container 20, the third container 30, and the fourth container 40 are provided with flanges (not shown), and any two of the first container 10, the second container 20, the third container 30, and the fourth container 40 are detachably connected through the flanges. Therefore, the containers are combined at will through the connection of the flanges, the transportation and the maintenance of the containers are facilitated, and the combination mode among the containers is more flexible.

In some embodiments, the expansion tank 32 is an open expansion tank 32. Thus, the open expansion tank 32 can accommodate the expansion amount of water, and also has the functions of constant pressure and water replenishment of the third container 30.

The following briefly describes the working process of the iron-chromium flow battery system according to the embodiment of the present invention:

the utility model discloses mainly divide into first module 100, second module 200, third module 300 and fourth module 400 with iron chromium redox flow battery system according to the modular thinking.

The first module 100 is a positive electrolyte storage and delivery module and includes a first container 10, a positive electrolyte storage tank 11, a positive heat exchanger 12, and a positive electrolyte delivery pump 13. The positive electrolyte storage tank 11, the positive heat exchanger 12 and the positive electrolyte delivery pump 13 are all arranged in the first container 10. The positive electrolyte storage tank is connected with the positive heat exchanger 12 and the positive electrolyte delivery pump 13 respectively. The positive electrode electrolyte storage tank 11 is used for storing positive electrode electrolyte, and the positive electrode heat exchanger 12 is used for heating the positive electrode electrolyte storage tank 11, so that the positive electrode electrolyte is heated, and the positive electrode electrolyte is output through the positive electrode electrolyte delivery pump 13.

The second module 200 is a negative electrolyte storage and delivery module and includes a second container 20, a negative electrolyte storage tank 21, a negative heat exchanger 22, and a negative electrolyte delivery pump 23. A negative electrolyte storage tank 21, a negative heat exchanger 22, and a negative electrolyte delivery pump 23 are provided in the second container 20. The negative electrode electrolyte storage tank 21 is connected to a negative electrode heat exchanger 22 and a negative electrode electrolyte delivery pump 23, respectively. The negative electrode electrolyte storage tank 21 is used for storing negative electrode electrolyte, and the negative electrode heat exchanger 22 is used for heating the negative electrode electrolyte storage tank 21, so that the negative electrode electrolyte is heated, and the negative electrode electrolyte is output through the negative electrode electrolyte delivery pump 23.

The third module 300 is a heating module and includes a third container 30, a heater 31, an expansion tank 32 and a water delivery pump 33. A heater 31, an expansion tank 32 and a water transfer pump 33 are provided in the third container 30. The expansion tank 32 is connected to the heater 31 and the water feed pump 33, respectively, and the water feed pump 33 is connected to the positive heat exchanger 12 and the negative heat exchanger 22, respectively. The heater 31 is used to heat the water in the expansion tank 32. The water transfer pump 33 transfers hot water into the positive heat exchanger 12 and the negative heat exchanger 22, and the positive heat exchanger 12 and the negative heat exchanger 22 absorb heat and transfer the heat to the respective positive electrolyte storage tank 11 and the negative electrolyte storage tank 21, thereby heating the electrolyte in the electrolyte storage tanks.

The fourth module 400 is a cell stack module and includes a fourth container 40 and a ferro-chrome flow cell 41, the ferro-chrome flow cell 41 being disposed within the fourth container 40. The positive terminal of the ferrochrome flow battery 41 is connected to the positive electrolyte delivery pump 13, and the negative terminal of the ferrochrome flow battery 41 is connected to the negative electrolyte delivery pump 23. The positive electrolyte delivery pump 13 and the negative electrolyte delivery pump 23 respectively deliver the heated positive and negative electrolytes to the positive electrode and the negative electrode of the ferrochrome flow battery 41, and the ferrochrome flow battery 41 converts the chemical energy of the positive and negative electrolytes into electric energy and stores the electric energy.

The return water after heat exchange in the positive heat exchanger 12 and the negative heat exchanger 22 returns to the third container 30 for continuous heating and recycling.

The top of any one of the first container 10, the second container 20 and the third container 30 is provided with three fans with shutters, the fan motors are controlled by three temperature sensors on the top of the container, when the temperature sensor 3 takes 2 temperature high alarm, the three fans are simultaneously started, and the interior of the container is rapidly cooled, so that the purpose of cooling is achieved.

The third module 300 places the heater 31, the water delivery pump 33, the expansion tank 32, the first pipe 34, the second pipe 35, and the control valve 38 in the same container. The water is heated by the heater 31 and then is sent to the first container 10 and the second container 20 by the water transfer pump 33 to heat the electrolytes, and signals are returned by the positive electrode electrolyte thermometer 24 and the negative electrode electrolyte thermometer 24 to control the opening degree of the control valve 38 of the first pipe 34 of the water transfer pump 33, thereby controlling the temperature of the electrolytes in the positive electrode electrolyte storage tank 21 and the negative electrode electrolyte storage tank 21. The return water after heat exchange returns to the expansion tank 32 for reheating and recycling.

A flow meter 37 is provided on a control valve 38 on the first pipe 34 of the water feed pump 33 to regulate the amount of hot water in the first and second containers 10 and 20 by regulating the amount of water returned to the expansion tank 32.

The first port 331 and the second port 332 are each provided with a control valve 38, and the control valve 38 is used to open and close the first port 331 and the second port 332. The control valve 38 is, for example, a solenoid valve, which is connected to a control system by means of which the opening and closing of the solenoid valve can be remotely controlled.

Be equipped with on anodal electrolyte holding vessel 11 and be used for detecting anodal electrolyte thermometer 14 of anodal electrolyte holding vessel 11 internal temperature, be equipped with a control system between solenoid valve and the anodal electrolyte thermometer 14, anodal electrolyte thermometer 14 will detect the temperature send to control system, control system is according to the degree that this temperature control solenoid valve opened and shut, flow in with control first interface 331 and third interface 333, thereby the temperature of the anodal electrolyte in the control anodal electrolyte holding vessel 11, make anodal electrolyte keep the constant temperature.

Be equipped with the negative pole electrolyte thermometer 24 that is used for detecting the temperature in the negative pole electrolyte holding vessel 21 on the negative pole electrolyte holding vessel 21, be equipped with a control system between solenoid valve and the negative pole electrolyte thermometer 24, the temperature that negative pole electrolyte thermometer 24 will detect sends control system to, control system is according to the degree that this temperature control solenoid valve opened and shut, flow in with control second interface 332 and fourth interface 334, thereby control the temperature of the negative pole electrolyte in the negative pole electrolyte holding vessel 21, make the negative pole electrolyte keep constant temperature.

The first pipe 34 and the second pipe 35 of the water delivery pump 33 are respectively provided with a plurality of reserved ports 36, the reserved ports 36 are provided with flanges in the third container 30, and the reserved ports 36 can be flexibly combined.

The present arrangement has the following features.

(1) The iron-chromium flow battery system is divided into: the positive electrolyte storage and conveying module, the negative electrolyte storage and conveying module, the galvanic pile module and the heating module are four parts, and the splicing is flexible and convenient to maintain and replace.

(2) The heat dissipation fan is arranged on the top of the container of the anode electrolyte storage and conveying module, the cathode electrolyte storage and conveying module and the pile module, and can be automatically opened according to requirements to cool the system and avoid overhigh temperature.

(3) The heating module is provided with an electric heater and an open expansion water tank, and is safe, reliable and convenient to operate. The temperature is controlled by controlling the flow of the hot water fed into other modules, and the temperature adjusting mode is flexible.

(4) The heater heating final temperature can be remotely and manually set according to the ambient temperature, so that the power consumption is saved.

(5) The heating modules can be spliced at will and can be used for one-to-many heating, namely, one heating module can simultaneously heat a plurality of electrolyte storage and conveying modules according to requirements.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (12)

1. An iron-chromium flow battery system, which is characterized by comprising a first module, a second module, a third module and a fourth module, wherein the first module comprises a first container, a positive electrolyte storage tank, a positive heat exchanger and a positive electrolyte delivery pump, the positive electrolyte storage tank, the positive heat exchanger and the positive electrolyte delivery pump are all arranged in the first container, the positive electrolyte storage tank is respectively connected with the positive heat exchanger and the positive electrolyte delivery pump, the second module comprises a second container, a negative electrolyte storage tank, a negative heat exchanger and a negative electrolyte delivery pump, the negative electrolyte storage tank, the negative heat exchanger and the negative electrolyte delivery pump are all arranged in the second container, the negative electrolyte storage tank is respectively connected with the negative heat exchanger and the negative electrolyte delivery pump, the third module includes third container, heater, expansion tank and water pump, the heater expansion tank with water pump all establishes in the third container, expansion tank respectively with the heater with water pump links to each other, water pump respectively with anodal heat exchanger with negative pole heat exchanger links to each other, the fourth module includes fourth container and iron chromium flow battery, iron chromium flow battery establishes in the fourth container, iron chromium flow battery's positive terminal with positive pole electrolyte pump links to each other, iron chromium flow battery's negative pole end with negative pole electrolyte pump links to each other.

2. The ferro-chromium flow battery system of claim 1, wherein the first container, the second container, and the third container are each provided with at least one fan.

3. The ferro-chromium flow battery system as claimed in claim 2, wherein the first container, the second container and the third container are provided with at least one alarm device for providing a warning when the temperature of the respective container exceeds a preset temperature, the alarm device corresponding to the fan.

4. The ferro-chromium flow battery system of claim 3, wherein the number of fans on each of the first, second, and third containers is plural, the number of alarm devices on each of the first, second, and third containers is plural, and the plural alarm devices on each container and the plural fans on each container correspond to each other.

5. The ferro-chromium flow battery system as claimed in claim 4 wherein the alarm means comprises a temperature sensor for sensing the temperature of the respective container.

6. The ferro-chromium flow battery system of claim 4, wherein the plurality of fans on the respective containers are all turned on when the ratio of the number of alarm devices alerting any of the first, second, and third containers to the number of the plurality of alarm devices on the respective container exceeds a preset ratio.

7. The iron-chromium flow battery system according to claim 1, wherein the water delivery pump is provided with a first pipe and a second pipe, the first pipe is provided with a first port and a second port, the second pipe is provided with a third port and a fourth port, the first port and the third port are respectively connected with the positive heat exchanger, and the second port and the fourth port are respectively connected with the negative heat exchanger.

8. The ferrochrome flow battery system according to claim 7, wherein the first port, the second port, the third port and the fourth port are provided with control valves, and the control valves are used for opening and closing the first port, the second port, the third port and the fourth port.

9. The iron-chromium flow battery system according to claim 8, wherein the positive electrolyte storage tank is provided with a positive electrolyte thermometer for detecting the temperature in the positive electrolyte storage tank, and the opening of the control valve is adapted to be adjusted according to the temperature detected by the positive electrolyte thermometer.

10. The iron-chromium flow battery system according to claim 9, wherein the negative electrolyte storage tank is provided with a negative electrolyte thermometer for detecting the temperature in the negative electrolyte storage tank, and the opening of the control valve is adapted to be adjusted according to the temperature detected by the negative electrolyte thermometer.

11. The iron-chromium flow battery system according to claim 1, wherein flanges are arranged on the first container, the second container, the third container and the fourth container, and any two containers of the first container, the second container, the third container and the fourth container are detachably connected through the flanges.

12. The iron-chromium flow battery system of claim 1, wherein the expansion tank is an open expansion tank.

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