Liquid cooling heat exchange module of centralized energy storage power station

Abstract

The utility model relates to the technical field of energy storage power stations, in particular to a centralized energy storage power station liquid cooling heat exchange module which comprises a T-shaped floor, an energy storage device is detachably installed at the upper end of the T-shaped floor, a shell fixedly installed on the T-shaped floor is arranged on the outer side of the energy storage device in a sleeved mode, and a plurality of heat dissipation pipes are arranged around the periphery of the energy storage device. A nitrogen generator is fixedly installed on the side wall of one end of the shell, a circulation assembly installed on the shell is arranged on one side of the nitrogen generator, the circulation assembly is connected with the nitrogen generator and a heat dissipation pipe, and a plurality of ventilation valves are evenly installed above the top end of the heat dissipation pipe. Nitrogen is fed into the water return pipe through the air inlet pipe, on one hand, heated water in the water return pipe can be cooled through the low-temperature nitrogen, on the other hand, generation of incrustation can be restrained, the frequency of pipeline cleaning caused by pipeline blockage by the incrustation and the frequency of pipeline cleaning by maintenance personnel are reduced, and the workload of the maintenance personnel is relieved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage power station technology, and in particular to a liquid-cooled heat exchange module for a centralized energy storage power station. Background Technology

[0002] With the continuous development and application of renewable energy, energy storage power stations, as an important part of energy storage, are particularly important for their safe operation and high efficiency. However, during long-term operation, the operating heat of the equipment in the equipment room can cause the temperature inside the equipment room to rise, affecting the operating efficiency and lifespan of the equipment, and even causing equipment damage. Therefore, heat dissipation devices have become an indispensable part of the equipment room of energy storage power stations.

[0003] Existing technologies often employ ventilation and heat dissipation devices to cool the internal components of energy storage power stations. However, these devices have the following problems in the process of ventilating and cooling the power station's equipment room: ventilation and heat dissipation are aimed at the heat dissipated in the open areas inside the equipment room, rather than at the heat source inside the equipment room, i.e., the energy storage battery placement area. The heat generated in the energy storage battery placement area cannot be effectively and promptly transferred, and the efficiency and effect of ventilation and heat dissipation in the battery placement area are not ideal. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned shortcomings in the existing technology by proposing a centralized energy storage power station liquid-cooled heat exchange module.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A centralized energy storage power station liquid-cooled heat exchange module includes a T-shaped floor. An energy storage device is detachably installed on the upper end of the T-shaped floor. An outer shell, which is fixedly installed on the T-shaped floor, is fitted around the energy storage device. Multiple heat dissipation pipes surround the energy storage device. The bottom of the heat dissipation pipes passes through the gaps in the T-shaped floor to dissipate heat from the bottom of the energy storage device. A nitrogen generator is fixedly installed on one side wall of the outer shell. A circulation component installed on the outer shell is provided on one side of the nitrogen generator. The circulation component is connected to the nitrogen generator and the heat dissipation pipes. Multiple vent valves are evenly installed above the top of the heat dissipation pipes.

[0007] Preferably, the circulation assembly includes a circulation pump fixedly mounted on the housing. The input end of the circulation pump is connected to a return water pipe, and the output end is connected to an inlet water pipe. The end of the inlet water pipe away from the circulation pump is connected to the inlet end of a plurality of heat dissipation pipes, and the end of the return water pipe away from the circulation pump is connected to the outlet end of a plurality of heat dissipation pipes.

[0008] Preferably, an air inlet pipe is connected between the output end of the nitrogen generator and the return water pipe, and a throttle valve is installed on the air inlet pipe.

[0009] Preferably, a plurality of nozzles are evenly installed below the top end of the heat dissipation pipe.

[0010] Preferably, the bottom of the front and rear outer walls of the housing is provided with an air outlet, and a nitrogen concentration sensor is fixedly installed on the housing on one side of the air outlet.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] 1. In this application, the nitrogen generator generates nitrogen gas and sends it into the return water pipe through the inlet pipe. The nitrogen gas expands and decreases in temperature through the throttling valve. The low-temperature nitrogen gas cools the heated water in the return water pipe and is then sent by the circulation pump through the inlet pipe into the heat dissipation pipe to absorb heat and dissipate heat for the energy storage device. This ensures that the water circulating in the pipeline enters the heat dissipation pipe and remains at a low temperature, thus improving the heat dissipation quality. During the process of transporting nitrogen gas and water together, a small amount of nitrogen gas will dissolve in the water, making the water alkaline, which inhibits the formation of scale, reduces the frequency of scale blockage in the pipeline and the frequency of pipeline cleaning by maintenance personnel, and reduces the workload of maintenance personnel.

[0013] 2. In this application, a nitrogen concentration sensor located on one side of the outlet monitors the nitrogen concentration of the gas discharged from the outlet in real time, and monitors the nitrogen situation inside the casing to ensure that the energy storage device inside the casing operates in a nitrogen-filled environment. The nitrogen environment extends the life of each electronic device. If the nitrogen concentration does not meet the set value, an alarm is immediately issued to remind maintenance personnel to check the nitrogen generator or vent valve. At the same time, in the event of spontaneous combustion or other accidents in the energy storage device in the nitrogen environment, it is difficult to burn due to lack of air. The nitrogen environment acts as a flame retardant to prevent the fire from spreading to other energy storage devices. When the energy storage device malfunctions and explodes, the nozzles located above each energy storage device immediately open while the nitrogen acts as a flame retardant to spray water from the heat dissipation pipes for forced cooling and prevent the accident from escalating. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the liquid-cooled heat exchange module for the centralized energy storage power station proposed in this utility model.

[0015] Figure 2 for Figure 1 A magnified view of a portion of the image (X).

[0016] Figure 3 This is a bottom view of the liquid-cooled heat exchange module of the centralized energy storage power station proposed in this utility model.

[0017] Figure 4 for Figure 3 A magnified view of part Y in the middle.

[0018] In the diagram: 1 Nitrogen generator, 2 Circulation pump, 3 Throttling valve, 4 Nitrogen concentration sensor, 5 Housing, 6 Energy storage device, 7 Inlet pipe, 8 Water inlet pipe, 9 Water return pipe, 10 Heat dissipation pipe, 51 Outlet, 52 T-shaped floor, 101 Vent valve, 102 Nozzle. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figures 1 to 4 The centralized energy storage power station liquid-cooled heat exchange module includes a T-shaped floor 52. An energy storage device 6 is detachably installed on the upper end of the T-shaped floor 52. The energy storage device 6 is fitted with a shell 5 that is fixedly installed on the T-shaped floor 52. Multiple heat dissipation pipes 10 surround the energy storage device 6. The bottom of the heat dissipation pipes 10 passes through the gaps in the T-shaped floor 52 to dissipate heat from the bottom of the energy storage device 6.

[0021] A nitrogen generator 1 is fixedly installed on one side wall of the outer casing 5. A circulation pump 2 is fixedly installed on the outer casing 5 on one side of the nitrogen generator 1. Both the nitrogen generator 1 and the circulation pump 2 are existing technologies, and their specific structural designs will not be described in detail here. The input end of the circulation pump 2 is connected to a return water pipe 9, and the output end is connected to an inlet water pipe 8. The end of the inlet water pipe 8 away from the circulation pump 2 is connected to the inlet end of multiple heat dissipation pipes 10, and the end of the return water pipe 9 away from the circulation pump 2 is connected to the outlet end of multiple heat dissipation pipes 10. This allows the cooling water to circulate in the multiple heat dissipation pipes 10, the return water pipe 9, and the inlet water pipe 8 when the circulation pump 2 is running, thereby maximizing the heat dissipation effect on the energy storage device 6.

[0022] An air inlet pipe 7 is connected between the output end of the nitrogen generator 1 and the return water pipe 9. A throttle valve 3 is installed on the air inlet pipe 7. The nitrogen expands and decreases in temperature through the throttle valve 3. After the low-temperature nitrogen cools the heated water in the return water pipe 9, it is sent by the circulation pump 2 through the water inlet pipe 8 into the heat dissipation pipe 10 to absorb heat and dissipate heat for the energy storage device 6.

[0023] Multiple vent valves 101 are evenly installed above the top of the heat dissipation pipe 10. When the nitrogen gas in the heat dissipation pipe 10 reaches the top of the heat dissipation pipe 10, it can overflow from the vent valve 101. Multiple nozzles 102 are evenly installed below the top of the heat dissipation pipe 10. When the energy storage device 6 malfunctions and explodes, while the nitrogen gas is used for flame retardation, the nozzles 102 located above each energy storage device 6 immediately open to spray the water in the heat dissipation pipe 10 down for forced cooling and to prevent the accident from escalating.

[0024] Both the front and rear outer walls of the outer casing 5 are provided with air outlets 51. A nitrogen concentration sensor 4 is fixedly installed on the outer casing 5 on one side of the air outlet 51. The nitrogen concentration sensor 4 is existing technology and is used to monitor the nitrogen concentration of the gas discharged from the air outlet 51 in real time, thereby further monitoring the nitrogen situation inside the outer casing 5.

[0025] The specific working principle of this utility model is as follows: the power station energy storage device 6 is placed on the T-shaped floor 52 to improve heat dissipation. The heat dissipation pipes 10 are arranged around the inner wall of the outer shell 5 to dissipate heat from the internal energy storage device 6. The bottom of the heat dissipation pipes 10 passes through the gaps in the T-shaped floor 52 to dissipate heat from the bottom of the energy storage device 6. The circulation pump 2 provides power for the circulation of water in the pipeline. The nitrogen generator 1 generates nitrogen and sends it into the return water pipe 9 through the air inlet pipe 7. A throttling valve 3 is provided on the air inlet pipe 7. The nitrogen expands and decreases in temperature through the throttling valve 3, thus achieving low temperature. After the nitrogen gas cools the heated water in the return water pipe 9, it is sent by the circulating pump 2 through the inlet water pipe 8 into the heat dissipation pipe 10 to absorb heat and dissipate heat for the energy storage device 6. This ensures that the water circulating in the pipeline enters the heat dissipation pipe and remains at a low temperature, improving the heat dissipation quality. During the process of transporting nitrogen and water together, a small amount of nitrogen will dissolve in the water, making the water alkaline, which inhibits the formation of scale, reduces the frequency of scale blockage and malfunctions caused by the pipeline, and reduces the workload of maintenance personnel. Vent valves 101 are evenly installed at the top of the heat dissipation pipe 10. When nitrogen reaches the top of the heat dissipation pipe 10, it can overflow from the vent valve 101. The less dense nitrogen accumulates at the top inside the outer casing 5, compressing the air downwards. Vents 51 are located at the bottom of the front and rear outer walls of the outer casing 5 to maintain consistent pressure inside and outside the casing 5. Simultaneously, the compressed air is discharged from the outer casing 5 through the vents 51. A nitrogen concentration sensor 4 located on one side of the vent 51 monitors the nitrogen concentration of the gas discharged from the vent 51 in real time, monitoring the nitrogen level inside the outer casing 5 to ensure that the energy storage device 6 inside the outer casing 5 operates in a nitrogen-filled environment. In a nitrogen environment, the lifespan of electronic devices is extended. If the nitrogen concentration does not meet the set value, an alarm is immediately issued to remind maintenance personnel to check the nitrogen generator 1 or the vent valve 101. At the same time, in a nitrogen environment, if the energy storage device 6 spontaneously combusts or other accidents occur, it will be difficult to burn due to lack of air. The nitrogen environment is used to prevent the fire from spreading to other energy storage devices 6. When the energy storage device 6 malfunctions and explodes, while the nitrogen is used for flame retardation, the nozzles 102 located above each energy storage device 6 are immediately opened to spray water from the heat dissipation pipe 10 for forced cooling and to prevent the accident from escalating.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A centralized energy storage power station liquid-cooled heat exchange module, comprising a T-shaped floor (52), wherein an energy storage device (6) is detachably installed on the upper end of the T-shaped floor (52), and an outer shell (5) fixedly installed on the T-shaped floor (52) is fitted around the energy storage device (6), characterized in that, The energy storage device (6) is surrounded by multiple heat dissipation pipes (10). The bottom of the heat dissipation pipes (10) passes through the gap of the T-shaped floor (52) to dissipate heat from the bottom of the energy storage device (6). A nitrogen generator (1) is fixedly installed on one side wall of the outer shell (5). A circulation component installed on the outer shell (5) is provided on one side of the nitrogen generator (1). The circulation component is connected to the nitrogen generator (1) and the heat dissipation pipes (10). Multiple vent valves (101) are evenly installed above the top of the heat dissipation pipes (10).

2. The centralized energy storage power station liquid-cooled heat exchange module according to claim 1, characterized in that, The circulation assembly includes a circulation pump (2) fixedly installed on the housing (5). The input end of the circulation pump (2) is connected to a return water pipe (9), and the output end is connected to an inlet water pipe (8). The end of the inlet water pipe (8) away from the circulation pump (2) is connected to the inlet end of a plurality of heat dissipation pipes (10), and the end of the return water pipe (9) away from the circulation pump (2) is connected to the outlet end of a plurality of heat dissipation pipes (10).

3. The centralized energy storage power station liquid-cooled heat exchange module according to claim 2, characterized in that, An air inlet pipe (7) is connected between the output end of the nitrogen generator (1) and the return water pipe (9), and a throttle valve (3) is installed on the air inlet pipe (7).

4. The centralized energy storage power station liquid-cooled heat exchange module according to claim 1, characterized in that, Multiple nozzles (102) are evenly installed below the top of the heat dissipation pipe (10).

5. The centralized energy storage power station liquid-cooled heat exchange module according to claim 1, characterized in that, The bottom of the front and rear outer walls of the outer casing (5) are provided with air outlets (51), and a nitrogen concentration sensor (4) is fixedly installed on the outer casing (5) on one side of the air outlet (51).

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