Cooling system of energy storage battery cabin

Abstract

The utility model provides an energy storage battery cabin cooling system, and relates to the technical field of energy storage battery cabin cooling. The problem that when an existing energy storage battery compartment is on fire, a fire extinguishing system cannot rapidly cool the interior of the battery compartment after open fire is extinguished is solved. The energy storage battery cabin cooling system comprises a cooling water reservoir; the cooling water reservoir is communicated with at least one battery cabin through a water supply pipeline; the cooling water supply pump is arranged on the water supply pipeline and is positioned at a water outlet of the cooling water reservoir; and the control valve is arranged on the water supply pipeline and is positioned at the water inlet of the battery cabin. According to the scheme provided by the utility model, when the energy storage battery cabin is on fire, the interior of the battery is quickly cooled, and meanwhile, the energy storage battery cabin has the advantages of simple structure and low maintenance cost.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage battery compartment cooling, in particular to an energy storage battery compartment cooling system. Background Art

[0002] The energy storage devices configured in new energy power stations such as wind power and photovoltaic power generation are mainly lithium iron phosphate chemical energy storage batteries. Several groups of battery compartments are placed in the power station, and lithium iron phosphate batteries are configured in the compartments. When the lithium iron phosphate batteries are overcharged or overloaded, chemical reactions occur inside the batteries to continuously generate heat. Since the battery compartment is a limited space, continuous accumulation of heat will lead to thermal runaway and then cause fire or even explosion. According to the research on the cause, development and continuation of battery fires, the chemical reaction inside the battery continues after the open flame of the fire is extinguished. Therefore, the battery needs to be cooled while quickly extinguishing the fire. At present, the commonly used measures for fire fighting in battery compartments are only suitable for extinguishing open flames, and cannot promptly block the continuous exothermic reaction of the battery in the battery compartment, and cannot quickly cool down the battery. Utility Model Content

[0003] The utility model provides an energy storage battery compartment cooling system, which solves the problem that when a fire occurs in the existing energy storage battery compartment, the fire extinguishing system cannot quickly cool down the inside of the battery after the open fire is extinguished.

[0004] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0005] An embodiment of the utility model provides an energy storage battery compartment cooling system, comprising:

[0006] Cooling water reservoir;

[0007] The cooling water reservoir is in communication with at least one battery compartment via a water supply pipe;

[0008] A cooling water supply pump provided on the water supply pipeline and located at the water outlet of the cooling water reservoir;

[0009] A control valve is arranged on the water supply pipeline and located at the water inlet of the battery compartment.

[0010] Optionally, the energy storage battery compartment cooling system further includes:

[0011] A control interlocking unit electrically connected to the control valve and a temperature monitoring device electrically connected to the control interlocking unit;

[0012] Wherein, the temperature monitoring device is arranged in the battery compartment.

[0013] Optionally, the energy storage battery compartment cooling system further includes:

[0014] A wastewater collection tank connected to the water outlet of the battery compartment through a wastewater recovery pipeline.

[0015] Optionally, the energy storage battery compartment cooling system further includes:

[0016] A third electric butterfly valve is arranged on the wastewater recovery pipeline and located at the water outlet of the battery compartment.

[0017] Optionally, the control valve comprises:

[0018] A first electric butterfly valve disposed on the water supply pipe and close to the water inlet of the battery compartment;

[0019] A second electric butterfly valve is arranged on the water supply pipeline and away from the water inlet of the battery compartment.

[0020] Optionally, the control valve further includes:

[0021] A leak detection valve and a manual valve are arranged between the first electric butterfly valve and the second electric butterfly valve.

[0022] Optionally, the energy storage battery compartment cooling system further includes:

[0023] A third water inlet pipe, wherein the second end of the third water inlet pipe is connected to the wastewater collection tank, and the first end of the third water inlet pipe is connected to the water supply pipe.

[0024] Optionally, the water supply pipeline includes:

[0025] a first water inlet pipe and a second water inlet pipe;

[0026] Wherein, the first end of the first water inlet pipe is connected to the water outlet of the cooling water reservoir, and the second end of the first water inlet pipe is connected to the first end of the third water inlet pipe;

[0027] The first end of the second water inlet pipe is communicated with at least one of the battery compartments, and the second end of the second water inlet pipe is communicated with the third water inlet pipe.

[0028] Optionally, the first end of the first water inlet pipe is arranged higher than the second end of the first water inlet pipe;

[0029] The first end of the second water inlet pipe is arranged higher than the second end of the second water inlet pipe;

[0030] The first end of the third water inlet pipe is arranged higher than the second end of the third water inlet pipe, and the first end of the third water inlet pipe is lower than the second ends of the first water inlet pipe and the second ends of the second water inlet pipe.

[0031] Optionally, the energy storage battery compartment cooling system further includes:

[0032] A fourth electric butterfly valve is arranged on the third water inlet pipe.

[0033] The above solution of the utility model includes at least the following beneficial effects:

[0034] The energy storage battery compartment cooling system described in the utility model comprises: a cooling water reservoir; the cooling water reservoir is connected to at least one battery compartment through a water supply pipe; a cooling water supply pump arranged on the water supply pipe and located at the water outlet of the cooling water reservoir; and a control valve arranged on the water supply pipe and located at the water inlet of the battery compartment. The utility model realizes rapid cooling of the battery interior when a fire occurs in the energy storage battery compartment, and has the advantages of simple structure and low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the energy storage battery compartment cooling system of the utility model;

[0036] Figure 2 It is a partial cross-sectional view of the energy storage battery compartment cooling system of the utility model at the water inlet of the battery compartment.

[0037] Description of reference numerals:

[0038] 1. Cooling water reservoir; 2. Battery compartment; 3. Cooling water supply pump; 41. Wastewater recovery pipeline; 42. Wastewater collection tank; 51. First electric butterfly valve; 52. Second electric butterfly valve; 53. Leak detection valve; 54. Manual valve; 61. First water inlet pipeline; 62. Second water inlet pipeline; 63. Third water inlet pipeline; 71. Third electric butterfly valve; 72. Fourth electric butterfly valve; 81. First electric valve; 82. Second electric valve; 83. Telescope; 84. Check valve. DETAILED DESCRIPTION

[0039] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0040] like Figure 1 to Figure 2 As shown, an embodiment of the utility model provides an energy storage battery compartment cooling system, comprising:

[0041] Cooling water reservoir 1;

[0042] The cooling water reservoir 1 is connected to at least one battery compartment 2 via a water supply pipe;

[0043] A cooling water supply pump 3 provided on the water supply pipeline and located at the water outlet of the cooling water reservoir 1;

[0044] A control valve is arranged on the water supply pipeline and located at the water inlet of the battery compartment 2.

[0045] In this embodiment, the battery compartment 2 is a sealed compartment, and the energy storage battery is arranged in the battery compartment 2; the cooling water supply pump 3 can be provided in plurality and connected in parallel to the cooling water reservoir 1 and the water supply pipe through a pipe. When in use, the control valve is opened, and the plurality of cooling water supply pumps 3 simultaneously and rapidly transport the cooling water in the cooling water reservoir 1 to the battery compartment 2 through the water supply pipe, filling the battery compartment 2 so that the batteries in the battery compartment 2 are immersed in the cooling water, thereby achieving rapid cooling of the battery interior when a fire occurs in the energy storage battery compartment. At the same time, the system has high reliability, and the suppression and elimination of thermal runaway after a fire is timely and reliable, and can protect the safety of operating personnel and firefighters, and suppress thermal runaway in time to avoid explosion accidents. The pipeline layout of the energy storage battery compartment cooling system is simple, the equipment configuration is small, it is in a standby state, routine maintenance, and the cost is low.

[0046] In a preferred embodiment, a water level mark is provided in the cooling water reservoir 1, and the cooling water reservoir 1 only stores cooling water that can fill one battery compartment 2. When in use, while multiple cooling water supply pumps 3 simultaneously transport the cooling water in the cooling water reservoir 1 to the battery compartment 2 rapidly through a water supply pipe, when the amount of cooling water in the cooling water reservoir 1 is lower than the water level mark, the cooling water supply pump 3 is immediately stopped and the control valve is closed. At this time, the cooling water in the battery compartment 2 can just fill the battery compartment 2.

[0047] In an optional embodiment of the present utility model, the energy storage battery compartment cooling system further includes:

[0048] A control interlocking unit and a temperature monitoring device electrically connected to the control interlocking unit;

[0049] Wherein, the temperature monitoring device is arranged in the battery compartment 2;

[0050] The cooling water supply pump 3 and the control valve are electrically connected to the control interlocking unit respectively.

[0051] In this embodiment, the control interlocking unit monitors the real-time temperature of the battery in the battery compartment 2 through a temperature monitoring device. When the real-time temperature of the battery in the battery compartment 2 is higher than a preset value, the control interlocking unit controls the opening of the control valve and the cooling water supply pump 3. When the cooling water stock in the cooling water reservoir 1 is lower than the water level mark, the control interlocking unit controls the closing of the control valve and the cooling water supply pump 3.

[0052] In a preferred embodiment, the energy storage battery compartment cooling system further includes:

[0053] The water level sensor arranged in the battery compartment 2 and electrically connected to the control interlocking unit is used to detect the water level of the cooling water in the battery compartment 2. When in use, the water level threshold can be set in the control interlocking unit in advance according to the space size of the battery compartment 2. When the data transmitted by the water level sensor is greater than the preset water level threshold, it means that the battery compartment 2 is full of cooling water. At this time, the control interlocking unit controls the control valve and the cooling water supply pump 3 to be closed. This design can realize the storage of multiple amounts of water that fill the battery compartments 2 in the cooling water reservoir 1, thereby realizing the simultaneous cooling of multiple battery compartments 2.

[0054] In an optional embodiment of the present utility model, the energy storage battery compartment cooling system further includes:

[0055] A wastewater collection tank 42 is connected to the water outlet of the battery compartment 2 through a wastewater recovery pipe 41.

[0056] A third electric butterfly valve 71 is arranged on the wastewater recovery pipe 41 and located at the water outlet of the battery compartment 2 .

[0057] like Figure 1 As shown, in this embodiment, Figure 1 The dotted part in the figure is the wastewater recovery pipe 41; the wastewater collection pool 42 is set underground, which can be used to store the cooling wastewater after cooling the batteries in the battery compartment 2, so as to prevent the cooling wastewater from polluting the environment after cooling, and facilitate the re-transfer and treatment of the wastewater; the third electric butterfly valve 71 is used to control the discharge of wastewater in the battery compartment 2.

[0058] In an optional embodiment of the present utility model, the control valve comprises:

[0059] A first electric butterfly valve 51 disposed on the water supply pipe and close to the water inlet of the battery compartment 2;

[0060] A second electric butterfly valve 52 is arranged on the water supply pipe and away from the water inlet of the battery compartment 2 .

[0061] In this embodiment, the first electric butterfly valve 51 is arranged on the water supply pipeline through a flange interface; the first electric butterfly valve 51 and the second electric butterfly valve 52 are used to open or close the water supply pipeline, that is, to control the water supply of the water supply pipeline.

[0062] In an optional embodiment of the utility model, the control valve further includes:

[0063] A leak detection valve 53 and a manual valve 54 are provided between the first electric butterfly valve 51 and the second electric butterfly valve 52 .

[0064] In this embodiment, the leak detection valve 53 and the manual valve 54 are used for the inspection and maintenance of the water supply pipeline.

[0065] In an optional embodiment of the present utility model, the energy storage battery compartment cooling system further includes:

[0066] A third water inlet pipe 63, a second end of the third water inlet pipe 63 is connected to the wastewater collection tank 42, and a first end of the third water inlet pipe 63 is connected to the water supply pipe.

[0067] The water supply pipeline comprises:

[0068] A first water inlet pipe 61 and a second water inlet pipe 62;

[0069] The first end of the first water inlet pipe 61 is connected to the water outlet of the cooling water reservoir 1, and the second end of the first water inlet pipe 61 is connected to the first end of the third water inlet pipe 63;

[0070] The first end of the second water inlet pipe 62 is in communication with at least one of the battery compartments 2 , and the second end of the second water inlet pipe 62 is in communication with the third water inlet pipe 63 .

[0071] The first end of the first water inlet pipe 61 is arranged higher than the second end of the first water inlet pipe 61;

[0072] The first end of the second water inlet pipe 62 is arranged higher than the second end of the second water inlet pipe 62;

[0073] The first end of the third water inlet pipe 63 is arranged higher than the second end of the third water inlet pipe 63 , and the first end of the third water inlet pipe 63 is lower than the second ends of the first water inlet pipe 61 and the second ends of the second water inlet pipe 62 .

[0074] In this embodiment, the cooling water supply pump 3 is arranged on the first water inlet pipe 61, and the control valve is arranged on the second water inlet pipe 62; in this embodiment, the height difference design of the end positions of the first water inlet pipe 61, the second water inlet pipe 62 and the third water inlet pipe 63 can realize that after the cooling is completed, the accumulated water in the first water inlet pipe 61 and the second water inlet pipe 62 flows into the wastewater collection tank 42 through the third water inlet pipe 63 (such as Figure 1 As shown, Figure 1 The direction of the arrow in the figure is the flow direction of the accumulated water in the first water inlet pipe 61 and the second water inlet pipe 62 after the cooling is completed), thereby ensuring that the first water inlet pipe 61 and the second water inlet pipe 62 will not be frozen and damaged at low temperatures.

[0075] In an optional embodiment of the present utility model, the energy storage battery compartment cooling system further includes:

[0076] A first electric valve 81 disposed on the first water inlet pipe 61 and close to the water outlet of the cooling water reservoir 1;

[0077] A second electric valve 82 is provided on the first water inlet pipe 61 and is far away from the water outlet of the cooling water reservoir 1;

[0078] The first electric valve 81 and the second electric valve 82 are normally open valves and are closed when the water pump fails for maintenance;

[0079] An expansion joint 83 disposed on the first water inlet pipe 61 and located between the cooling water supply pump 3 and the first electric valve 81 is used to facilitate installation and removal of the pipe;

[0080] The check valve 84 disposed on the first water inlet pipe 61 and located between the cooling water supply pump 3 and the second electric valve 82 is used to stop water and prevent water from flowing in reverse. In an optional embodiment of the utility model, the energy storage battery compartment cooling system also includes: a fourth electric butterfly valve 72 disposed on the third water inlet pipe 63, which is used to control the accumulated water in the first water inlet pipe 61 and the second water inlet pipe 62 to flow into the wastewater collection tank 62 after cooling is completed.

[0081] The energy storage battery compartment cooling system described in the utility model can be used in energy storage power stations and new energy power stations through the design of water immersion cooling. It can be used in conjunction with the fire extinguishing system of the lithium iron phosphate energy storage battery compartment, and has fire prevention and explosion prevention effects. The battery compartment water inlet pipe is provided with a valve to prevent water leakage and prevent misoperation, which ensures the safety of the battery compartment and has positive promotion significance. The system is used in the case where the chemical reaction in the energy storage battery continues to release heat after the open flame of the fire is extinguished. At this time, the cooling system is started promptly and quickly, and the compartment is filled with water to force the reaction to be interrupted due to water immersion cooling, thereby avoiding uninhibited reaction, rapid accumulation of heat and explosion accidents.

[0082] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A cooling system for an energy storage battery compartment, characterized in that: include: Cooling water reservoir (1); The cooling water reservoir (1) is connected to at least one battery compartment (2) via a water supply pipeline; A cooling water supply pump (3) arranged on the water supply pipeline and located at the water outlet of the cooling water reservoir (1); A control valve disposed on the water supply pipeline and located at the water inlet of the battery compartment (2); A control interlocking unit and a temperature monitoring device electrically connected to the control interlocking unit; Wherein, the temperature monitoring device is arranged in the battery compartment (2); The cooling water supply pump (3) and the control valve are electrically connected to the control interlocking unit respectively; A wastewater collection tank (42) connected to the water outlet of the battery compartment (2) via a wastewater recovery pipe (41); A third electric butterfly valve (71) disposed on the wastewater recovery pipe (41) and located at the water outlet of the battery compartment (2); The control valve comprises: A first electric butterfly valve (51) disposed on the water supply pipeline and close to the water inlet of the battery compartment (2); A second electric butterfly valve (52) disposed on the water supply pipeline and away from the water inlet of the battery compartment (2); The control valve further comprises: a leak detection valve (53) and a manual valve (54) disposed between the first electric butterfly valve (51) and the second electric butterfly valve (52); A third water inlet pipe (63), wherein a second end of the third water inlet pipe (63) is in communication with the wastewater collection tank (42), and a first end of the third water inlet pipe (63) is in communication with the water supply pipe; The water supply pipeline comprises: A first water inlet pipe (61) and a second water inlet pipe (62); Wherein, the first end of the first water inlet pipe (61) is in communication with the water outlet of the cooling water reservoir (1), and the second end of the first water inlet pipe (61) is in communication with the first end of the third water inlet pipe (63); The first end of the second water inlet pipe (62) is in communication with at least one of the battery compartments (2), and the second end of the second water inlet pipe (62) is in communication with the third water inlet pipe (63); The first end of the first water inlet pipe (61) is arranged higher than the second end of the first water inlet pipe (61); The first end of the second water inlet pipe (62) is arranged higher than the second end of the second water inlet pipe (62); The first end of the third water inlet pipe (63) is arranged higher than the second end of the third water inlet pipe (63), and the first end of the third water inlet pipe (63) is lower than the second end of the first water inlet pipe (61) and the second end of the second water inlet pipe (62); A fourth electric butterfly valve (72) is arranged on the third water inlet pipe (63).

Images