Energy storage battery container temperature control and fire control integrated device

Abstract

The utility model discloses a kind of temperature control and fire-fighting integrated device of energy storage battery container, utilize the switching mechanism of three-way valve, make temperature control equipment and fire-fighting equipment share same main pipeline, solve the inherent defects of existing independent temperature control, fire-fighting pipeline parallel layout, significantly reduce the amount of pipeline material, substantially simplify pipeline structure, not only reduce the complexity of pipeline installation, reduce the potential risk of liquid leakage, improve the safety and reliability of battery operation, more optimally the space utilization of container interior, make more layout space for battery cluster and other key equipment, simultaneously, through the collaborative control of pump body and valve, realize the efficient switching of cooling circulation and fire extinguishing mode, both guarantee the stability of battery thermal management, and strengthen the response capability of emergency fire, provide double protection for the safe and efficient operation of energy storage system, overall improve the integration level and economy of energy storage container.

Description

Technical Field

[0001] This utility model belongs to the field of battery safety technology, and relates to battery temperature control and fire protection management, specifically an integrated temperature control and fire protection device for an energy storage battery container. Background Technology

[0002] With advancements in battery technology and increasing energy density, the heat generated during charging and discharging has become increasingly severe. Therefore, temperature control equipment must be installed in energy storage battery containers to cool the batteries and ensure their lifespan and safety. This requires a large amount of piping to ensure uniform cooling for each battery cluster. Furthermore, due to the inherent dangers of electrochemical energy storage, independent and comprehensive fire-fighting equipment is also necessary in energy storage battery containers to extinguish fires promptly and prevent their spread in the event of spontaneous combustion or other accidents. This fire-fighting equipment also requires extensive piping to ensure fire protection for every location within the energy storage battery container.

[0003] Currently, the temperature control equipment piping and fire protection equipment piping in energy storage battery containers are two separate piping systems. This not only increases the complexity of the installation of temperature control and fire protection equipment and raises costs, but also indirectly increases the risk of liquid leakage due to the complex piping connections, which greatly reduces the safety of using energy storage battery containers. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes an integrated temperature control and fire protection device for an energy storage battery container. By adopting a common pipe connection method, the delivery pipelines of the temperature control equipment and the fire protection equipment are deeply integrated, thus achieving the effective unification of the two core functions.

[0005] The objective of this utility model can be achieved through the following technical solutions: An integrated temperature control and fire protection device for an energy storage battery container includes: a temperature control device, a fire protection device, a first three-way valve, a pump body, and an execution terminal. The first end of the first three-way valve is connected to the temperature control device through a pipeline, the second end of the first three-way valve is connected to the fire protection device through a pipeline, the third end of the first three-way valve is connected to the inlet of the pump body through a pipeline, and the outlet of the pump body is connected to the execution terminal through a pipeline. The execution terminal is installed on the battery cluster and integrates temperature control and fire protection functions.

[0006] Furthermore, the temperature control equipment is a liquid refrigeration equipment to provide coolant with stable temperature and flow rate, and the fire-fighting equipment is a gas extinguishing equipment or a water extinguishing equipment to provide gas extinguishing agent or water.

[0007] Furthermore, the execution terminal includes: a heat exchange tube, a nozzle, and a second three-way valve. The heat exchange tube is arranged on the surface of the battery cluster and absorbs the heat of the battery cluster through the coolant provided by the temperature control equipment. The nozzle is located on one side of the battery cluster to spray the gaseous extinguishing agent or water provided by the fire-fighting equipment onto the battery cluster. The first end of the second three-way valve is connected to the outlet of the pump body through a pipeline, the second end of the second three-way valve is connected to the heat exchange tube through a pipeline, and the third end of the second three-way valve is connected to the nozzle through a pipeline.

[0008] Furthermore, the liquid outlet of the temperature control device is connected to the first end of the first three-way valve, the liquid inlet of the heat exchange tube is connected to the second end of the second three-way valve, and the liquid outlet of the heat exchange tube is connected to the liquid return port of the temperature control device through a pipeline to form a closed-loop cooling cycle.

[0009] Furthermore, a solenoid valve is connected in series on the pipeline between the fire-fighting equipment and the second end of the first three-way valve to serve as the on / off control element for the fire-fighting equipment.

[0010] Furthermore, both the first three-way valve and the second three-way valve are electrically driven valves.

[0011] Furthermore, a temperature sensor is installed on the battery cluster to collect the temperature of the battery cluster. The temperature sensor is connected in communication with the BMS battery management system to transmit the detected temperature data to the BMS battery management system.

[0012] Furthermore, it also includes: a controller, which is communicatively connected to the BMS battery management system to receive thermal runaway early warning signals from the battery cluster; the controller is also connected to the first three-way valve, the second three-way valve, and the solenoid valve to control the conduction paths of the first three-way valve and the second three-way valve, as well as the on / off state of the solenoid valve.

[0013] Furthermore, the controller is in temperature control mode by default, connecting the first and third ends of the first three-way valve, connecting the first and second ends of the second three-way valve, and closing the solenoid valve.

[0014] Furthermore, when the controller receives a thermal runaway warning signal from the battery cluster, it switches to fire suppression mode, connects the second and third ends of the first three-way valve, connects the first and third ends of the second three-way valve, and opens the solenoid valve.

[0015] The beneficial effects of this utility model are as follows: The integrated temperature control and fire protection device for energy storage battery containers provided in this application utilizes the intelligent switching mechanism of a three-way valve to enable temperature control equipment and fire protection equipment to share the same main pipeline. This solves the inherent defects of existing independent temperature control and fire protection pipelines in parallel layout, significantly reduces the amount of pipeline materials used, greatly simplifies the pipeline structure, reduces the complexity of pipeline installation, reduces the potential risk of liquid leakage, improves the safety and reliability of battery operation, and optimizes the space utilization rate inside the container, freeing up more layout space for battery clusters and other key equipment. At the same time, by integrating fire protection and temperature control functions at the execution terminal, it ensures that the fire extinguishing medium can accurately cover the entire area of ​​the battery cluster, maintaining the comprehensiveness of fire protection. Through the coordinated control of the pump and valve, efficient switching between cooling circulation and fire extinguishing modes is achieved, which not only ensures the stability of battery thermal management but also enhances the emergency fire response capability, providing dual protection for the safe and efficient operation of the energy storage system and improving the integration level and economy of the energy storage container as a whole. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the pipeline connection of this utility model.

[0017] Figure 2 This is a schematic diagram of the execution terminal of this utility model.

[0018] Figure 3 This is a schematic diagram of the control connection of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 As shown, this utility model provides an integrated temperature control and fire protection device for an energy storage battery container, including: a temperature control device 1, a fire protection device 2, a first three-way valve 3, a pump body 4, and an execution terminal 5. The temperature control device 1, the fire protection device 2, and the pump body 4 are all connected to the first three-way valve 3 through pipelines. The execution terminal 5 is connected to the pump body 4 through pipelines and is installed on the battery cluster 6. The execution terminal 5 is compatible with temperature control and fire protection functions. When connected to the temperature control device 1, it can cool the battery cluster 6. When connected to the fire protection device 2, it can extinguish fires in the battery cluster 6.

[0021] Among them, temperature control device 1 is a liquid refrigeration device used to provide low-temperature coolant with stable temperature and flow rate. Firefighting device 2 is a gas extinguishing device or a water extinguishing device used to provide gaseous extinguishing agent or water. The first end of the first three-way valve 3 is connected to the outlet of temperature control device 1, the second end of the first three-way valve 3 is connected to firefighting device 2, and the third end of the first three-way valve 3 is connected to the inlet of pump body 4. When the first end and the third end of the first three-way valve 3 are connected, the outlet of temperature control device 1 is connected to the inlet of pump body 4, and the coolant output by temperature control device 1 enters pump body 4 from the inlet of pump body 4 and is output from the outlet of pump body 4 under the power drive of pump body 4. When the second end and the third end of the first three-way valve 3 are connected, firefighting device 2 is connected to the inlet of pump body 4, and the gaseous extinguishing agent or water output by firefighting device 2 enters pump body 4 from the inlet of pump body 4 and is output from the outlet of pump body 4 under the power drive of pump body 4.

[0022] like Figure 2 As shown, the execution terminal 5 includes: a heat exchange tube 51, a nozzle 52, and a second three-way valve 53. The pump body 4, heat exchange tube 51, and nozzle 52 are all connected to the second three-way valve 53 via pipelines. The first end of the second three-way valve 53 is connected to the outlet of the pump body 4, the second end of the second three-way valve 53 is connected to the inlet of the heat exchange tube 51, and the third end of the second three-way valve 53 is connected to the nozzle 52. When the first and second ends of the second three-way valve 53 are connected, the outlet of the pump body 4 is connected to the inlet of the heat exchange tube 51. The heat exchange tube 51 is arranged on the surface of the battery cluster 6. The coolant provided by the temperature control device 1 enters the heat exchange tube 51 from the inlet under the power drive of the pump body 4, exchanges heat with the battery cluster 6, absorbs the heat from the battery cluster 6, and lowers the temperature of the battery cluster 6. Furthermore, the outlet of the heat exchange tube 51 is connected to the return port of the temperature control device 1 via a pipeline, so that the coolant, whose temperature has increased after absorbing heat, is returned to the temperature control device 1 for further cooling, forming a closed-loop cooling cycle. When the second end and the third end of the second three-way valve 53 are connected, the outlet of the pump body 4 is connected to the nozzle 52. The nozzle 52 is located on one side of the battery cluster 6. The gaseous extinguishing agent or water provided by the fire-fighting equipment 2 is sprayed from the nozzle 52 to the battery cluster 6 under the power drive of the pump body 4 to perform the fire extinguishing operation.

[0023] A solenoid valve 9 is connected in series on the pipeline between the fire-fighting equipment 2 and the second end of the first three-way valve 3. The solenoid valve 9 serves as the on / off control for the fire-fighting equipment 2. Both the first three-way valve 3 and the second three-way valve 53 are electrically driven valves. Figure 3As shown, the first three-way valve 3, the second three-way valve 53, and the solenoid valve 9 are all electrically connected to the controller. The controller can control the first three-way valve 3 to switch between being connected at the first and third ends, and between the second and third ends; the controller can control the second three-way valve 53 to switch between being connected at the first and second ends, and between the first and third ends; and the controller can switch the solenoid valve 9 between being on and off. A temperature sensor is installed on the battery cluster 6 to collect its temperature. The temperature sensor is communicatively connected to the BMS (Battery Management System) to transmit the detected temperature data to the BMS. The controller is also communicatively connected to the BMS. When the BMS detects that the temperature data of the battery cluster 6 exceeds a preset threshold, it outputs a thermal runaway warning signal to the controller.

[0024] Specifically, the controller defaults to temperature control mode. In temperature control mode, the first and second ends of the first three-way valve 3 are connected, the first and second ends of the second three-way valve 53 are connected, and the solenoid valve is closed. At this time, the temperature control device 1, the first three-way valve 3, the pump body 4, the second three-way valve 53, and the heat exchange tube 51 form a cooling circulation loop. The coolant provided by the temperature control device 1 enters the heat exchange tube 51 under the power drive of the pump body 4 to exchange heat with the battery cluster 6, absorb the heat of the battery cluster 6, continuously cool the battery cluster 6, and return the heat-absorbing and heated coolant to the temperature control device 1 for cooling again. When the controller receives a thermal runaway warning signal from the battery cluster 6, it switches to fire-fighting mode. The controller outputs a control signal to connect the first and third ends of the first three-way valve 3 and the first and third ends of the second three-way valve 53, and opens the solenoid valve. At this time, the fire-fighting equipment 2, the first three-way valve 3, the pump body 4, the second three-way valve 53, and the nozzle 52 are connected in sequence. The gaseous extinguishing agent or water provided by the fire-fighting equipment 2 is sprayed from the nozzle 52 to the battery cluster 6 under the power drive of the pump body 4 to perform the fire extinguishing operation.

[0025] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. An integrated temperature control and fire protection device for an energy storage battery container, characterized in that, include: Temperature control equipment (1), fire-fighting equipment (2), first three-way valve (3), pump body (4), and execution terminal (5). The first end of the first three-way valve (3) is connected to the temperature control equipment (1) through a pipeline. The second end of the first three-way valve (3) is connected to the fire-fighting equipment (2) through a pipeline. The third end of the first three-way valve (3) is connected to the inlet of the pump body (4) through a pipeline. The outlet of the pump body (4) is connected to the execution terminal (5) through a pipeline. The execution terminal (5) is installed on the battery cluster (6). The execution terminal (5) is compatible with temperature control and fire-fighting functions.

2. The integrated device according to claim 1, characterized in that, Temperature control equipment (1) is a liquid refrigeration equipment to provide coolant with stable temperature and flow rate, and fire-fighting equipment (2) is a gas extinguishing equipment or a water extinguishing equipment to provide gas extinguishing agent or water.

3. The integrated device according to claim 1, characterized in that, The execution terminal (5) includes: heat exchange tube (51), nozzle (52), and second three-way valve (53). The heat exchange tube (51) is arranged on the surface of the battery cluster (6) and absorbs the heat of the battery cluster (6) through the coolant provided by the temperature control device (1). The nozzle (52) is set on one side of the battery cluster (6) to spray the gas extinguishing agent or water provided by the fire-fighting equipment (2) onto the battery cluster (6). The first end of the second three-way valve (53) is connected to the outlet of the pump body (4) through a pipeline. The second end of the second three-way valve (53) is connected to the heat exchange tube (51) through a pipeline. The third end of the second three-way valve (53) is connected to the nozzle (52) through a pipeline.

4. The integrated device according to claim 3, characterized in that, The outlet of the temperature control device (1) is connected to the first end of the first three-way valve (3), the inlet of the heat exchange tube (51) is connected to the second end of the second three-way valve (53), and the outlet of the heat exchange tube (51) is connected to the return port of the temperature control device (1) through a pipeline to form a closed-loop cooling cycle.

5. The integrated device according to claim 1, characterized in that, A solenoid valve (9) is connected in series on the pipeline between the fire-fighting equipment (2) and the second end of the first three-way valve (3) to serve as the switch control component for the fire-fighting equipment (2).

6. The integrated device according to claim 5, characterized in that, Both the first three-way valve (3) and the second three-way valve (53) are electrically driven valves.

7. The integrated device according to claim 6, characterized in that, A temperature sensor is provided on the battery cluster (6) to collect the temperature of the battery cluster (6). The temperature sensor is connected to the BMS battery management system to transmit the detected temperature data to the BMS battery management system.

8. The integrated device according to claim 7, characterized in that, Also includes: The controller is connected to the BMS battery management system to receive the thermal runaway warning signal of the battery cluster (6). The controller is connected to the first three-way valve (3), the second three-way valve (53), and the solenoid valve (9) to control the conduction path of the first three-way valve (3) and the second three-way valve (53) and the on / off state of the solenoid valve (9) respectively.

9. The integrated device according to claim 8, characterized in that, The controller is in temperature control mode by default. It connects the first end of the first three-way valve (3) to the third end, connects the first end of the second three-way valve (53) to the second end, and closes the solenoid valve.

10. The integrated device according to claim 9, characterized in that, When the controller receives a thermal runaway warning signal from the battery cluster (6), it switches to fire mode, connects the second and third ends of the first three-way valve (3), connects the first and third ends of the second three-way valve (53), and opens the solenoid valve.

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