Lithium battery fireproof cooling device of energy storage power station

Abstract

The invention discloses a lithium battery fireproof cooling device for an energy storage power station, and the device comprises a fire pump box which is erected at one side of the interior of a power station box, a plurality of fire water pipes are distributed in the power station box, and the fire water pipes are provided with fire nozzles; carrying frames are arranged in the power station box, heat dissipation jacking mechanisms are arranged on all installation layers of the carrying frames, and the heat dissipation jacking mechanisms are used for cooling the bottoms of lithium battery boxes on the installation layers in a contact mode and obliquely jacking one sides of the lithium battery boxes upwards when the lithium battery boxes extinguish fire. Cooling assemblies are vertically installed on the front side and the rear side of the carrying frame in a sliding mode, and the cooling assemblies conduct routing inspection and cooling on the lithium battery boxes on all the installation layers in sequence and conduct fire extinguishing and fire fighting on the lithium battery boxes at the first time when a fire disaster happens to the lithium battery boxes.

Description

Technical Field

[0001] The invention belongs to the technical field of fire-fighting equipment for energy storage power stations, and in particular is a lithium battery fire prevention and cooling device for energy storage power stations. Background Art

[0002] Lithium batteries are widely used in energy storage power stations due to their high efficiency, good dynamic characteristics, long service life, and almost no influence from terrain. However, due to the activity of lithium battery electrodes and the instability of electrolytes, during use, if the external circuit of the lithium battery is short-circuited, or chemical reactions between internal materials release heat, fires or explosions may occur, seriously affecting the safety performance of energy storage power stations.

[0003] Existing energy storage power stations mostly use suspended fire nozzles for firefighting. However, since they are not targeted at the fire source, it is difficult to achieve a rapid fire extinguishing effect during firefighting, causing the fire to spread. At the same time, due to the dense layout of lithium batteries, fire water cannot be circulated, making it difficult to directly extinguish the fire at the lithium battery source.

[0004] Therefore, it is necessary to provide a lithium battery fire prevention and cooling device for an energy storage power station to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium battery fire prevention and cooling device for an energy storage power station, comprising: a fire pump box, which is erected on one side of the inside of the power station box, wherein a plurality of fire water pipes are distributed in the power station box, and a fire sprinkler is installed on the fire water pipe; carriers are arranged in the power station box, and heat dissipation lifting mechanisms are provided on each installation layer of the carriers, and the heat dissipation lifting mechanisms are used to contact-type cool the bottom of the lithium battery box on the installation layer, and to tilt and lift one side of the lithium battery box upward when the lithium battery box is extinguished for fire fighting;

[0006] Cooling components are vertically slidably installed on both the front and rear sides of the carrier, and the cooling components inspect and cool the lithium battery boxes on each installation layer in turn, and extinguish the fire in the lithium battery box as soon as possible when a fire occurs.

[0007] Further, as a preference, the heat dissipation lifting mechanism includes: a heat conducting plate, an inner tube is arranged inside the heat conducting plate, the inner tube is distributed in a serpentine shape, a discharge pipe is connected to the middle of the inner tube in the heat conducting plate, a plurality of liquid inlet pipes are symmetrically arranged on the periphery of the heat conducting plate, a plurality of guide cylinders are vertically fixed on the heat conducting plate, a push rod is slidably arranged in the guide cylinder, one end of the liquid inlet pipe is connected to the bottom of the guide cylinder, and the guide cylinder and the inner tube are connected through a rotating pipe.

[0008] Furthermore, preferably, when the coolant flow rate pumped by the inlet pipe outside the guide cylinder is higher than the discharge flow rate of the discharge pipe, the push rod can be pushed by the coolant to gradually extend out of the guide cylinder; the distance between the lithium battery box and the relatively upper installation layer is not less than 35mm, so that the adjacent lithium battery boxes are distributed in parallel or in a < shape under the lifting action.

[0009] Further, as a preferred embodiment, the cooling component comprises: a sliding frame, which is symmetrically distributed on the carrier, a linkage sleeve is slidably arranged on the sliding frame, a cooling pipe is horizontally arranged between the linkage sleeves, a water supply pipe is also arranged outside the carrier, one end of the water supply pipe is connected to the cooling pipe, a positioning sleeve is fixed on the linkage sleeve, and both ends of the cooling pipe are rotatably connected to the positioning sleeve;

[0010] A cooling pipe is coaxially fixed inside the cooling pipe, one end of which is connected to an external refrigerator for continuously delivering cooling gas, and a plurality of air flow holes penetrating the side wall of the cooling pipe are distributed on the cooling pipe.

[0011] Further, as a preference, a plurality of control nozzles are spaced apart on the cooling tube, an atomizing sleeve is fixed at the end of the control nozzle, a fast flow tube is slidably arranged in the control nozzle via a connecting spring, a jet head is fixed at one end of the fast flow tube, a front chamber is provided in the control nozzle, the fast flow tube can seal and block the front chamber through a blocking sleeve during sliding, a ball shaft is fixed in the control nozzle, and the ball shaft can seal and cooperate with one end of the fast flow tube.

[0012] Further, as a preference, when the water pressure in the cooling pipe is pumped at medium or low pressure, the fast-flow pipe can be separated from the ball shaft under the push of the water flow, and the jet head is in a flow state at this time.

[0013] Furthermore, preferably, the connecting springs in the control nozzles in odd positions are high-strength springs, and when the water pressure in the cooling pipe is pumped at medium pressure, the jet head in each control nozzle opens.

[0014] Further, as a preference, an axis tube is fixed on the positioning sleeve close to the side of the water supply pipe, one end of the cooling tube is rotatably connected in the axis tube, a baffle is fixed in the axis tube, an outer notch is provided on the cooling tube, the baffle rotates relatively along the outer notch, and one end of the baffle is in sealing contact with the shaft column in the cooling tube, a partition plate is coaxially fixed in the cooling tube, the partition plate is provided with a liquid hole, and an inner dividing plate 1 is fixed in the cooling tube between the partition plate and the axis tube, the inner dividing plate 1 cooperates with the baffle plate to form a guide cavity, and a flow hole is provided on the axis tube at the guide cavity for connecting the water supply pipe.

[0015] Furthermore, as a preference, a second inner dividing plate is provided inside the cooling tube, and a flow cavity is formed between the second inner dividing plate and the baffle plate, and a foam tube is connected to the outside of the flow cavity through a flow hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The heat dissipation lifting mechanism used in the present invention can cool the bottom of the lithium battery box in a contact manner. At the same time, when the lithium battery box is overheated, one side of the lithium battery box can be lifted to facilitate airflow exchange;

[0018] 2. The cooling component mainly arranged in the present invention can not only inspect the lithium battery box one by one from top to bottom and deliver cold air to achieve targeted cooling, but also provide fire water to the lithium battery box during fire fighting, thereby cooperating with the heat dissipation lifting mechanism to carry out multi-directional fire extinguishing on the lithium battery box to achieve rapid fire fighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the heat dissipation lifting mechanism in the present invention;

[0021] Figure 3 It is a structural schematic diagram of the guide cylinder in the present invention;

[0022] Figure 4 It is a structural schematic diagram of the cooling component in the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the cooling tube in the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the control nozzle in the present invention;

[0025] Figure 7 It is a structural schematic diagram of the central axis tube of the present invention;

[0026] Figure 8 It is a schematic diagram of the structure of the flow guiding cavity and the flow cavity in the present invention;

[0027] Fig. 9 This is a schematic diagram of the lithium battery box fire extinguishing in the present invention;

[0028] In the figure: 1. power station box; 11. fire pump box; 12. fire water pipe; 13. fire sprinkler; 2. carrier; 3. cooling assembly; 31. sliding frame; 32. linkage sleeve; 33. water supply pipe; 4. heat dissipation lifting mechanism; 41. heat conduction plate; 42. inner pipe; 43. liquid inlet pipe; 44. liquid discharge pipe; 45. guide cylinder; 46. rotating pipe; 5. cooling pipe; 51. cooling pipe; 52. air flow hole; 53. inner dividing plate 1; 54. guide chamber; 55. flow chamber; 6. control nozzle; 61. front chamber; 62. atomizing sleeve; 63. fast flow pipe; 64. ball shaft; 65. resistance sleeve; 66. connecting spring; 7. shaft tube; 71. baffle. DETAILED DESCRIPTION

[0029] See also Figure 1-9 In an embodiment of the present invention, a lithium battery fire prevention and cooling device for an energy storage power station includes: a fire pump box 11, which is erected on one side of the inside of a power station box 1, wherein a plurality of fire hoses 12 are distributed in the power station box 1, and a fire sprinkler 13 is installed on the fire hose 12; a carrier 2 is arranged in the power station box 1, and a heat dissipation lifting mechanism 4 is provided on each installation layer of the carrier 2, wherein the heat dissipation lifting mechanism 4 is used for contact cooling of the bottom of the lithium battery box on the installation layer, and tilting and lifting one side of the lithium battery box upward when the lithium battery box is extinguished for fire fighting;

[0030] The carrier 2 is vertically slidably mounted with cooling components 3 on both the front and rear sides. The cooling components 3 inspect and cool the lithium battery boxes on each installation layer in turn, and extinguish the fire as soon as a fire occurs in the lithium battery box. It has fast responsiveness and strong targeting, and can quickly extinguish the fire source to prevent the fire from spreading.

[0031] In this embodiment, the heat dissipation lifting mechanism 4 includes: a heat conducting plate 41, which is provided with an inner tube 42, and the inner tube 42 is distributed in a serpentine shape, so as to achieve contact heat dissipation and cooling of the bottom of the lithium battery box during continuous delivery of the coolant. A drain pipe 44 is connected to the middle of the inner tube 42 in the heat conducting plate 41, and a plurality of liquid inlet pipes 43 are symmetrically arranged on the periphery of the heat conducting plate 41. A plurality of guide cylinders 45 are vertically fixed on the heat conducting plate 41, and a push rod is slidably arranged in the guide cylinder 45. One end of the liquid inlet pipe 43 is connected to the bottom of the guide cylinder 45, and the guide cylinder 45 and the inner tube 42 are connected through a rotating pipe 46.

[0032] As a preferred embodiment, when the coolant flow rate pumped by the inlet pipe outside the guide cylinder 45 is higher than the discharge flow rate of the discharge pipe 44, the push rod can be pushed by the coolant to gradually extend out of the guide cylinder 45; the distance between the lithium battery box and the relatively upper installation layer is not less than 35mm, so that the lithium battery box can be tilted and adjusted during cooling or fire fighting, thereby forming a heat exchange space, so that the adjacent lithium battery boxes are distributed in parallel or in a < shape under the lifting effect, thereby increasing the heat exchange space for better heat dissipation, especially providing sufficient fire fighting space during fire fighting.

[0033] In this embodiment, the cooling component 3 includes: a sliding frame 31, which is symmetrically distributed on the carrier 2, and a linkage sleeve 32 is slidably arranged on the sliding frame 31, and a cooling pipe 5 is horizontally arranged between the linkage sleeves 32. A water supply pipe 33 is also arranged outside the carrier 2, and one end of the water supply pipe 33 is connected to the cooling pipe 5. A positioning sleeve is fixed on the linkage sleeve 32, and both ends of the cooling pipe 5 are rotatably connected to the positioning sleeve;

[0034] A cooling pipe 51 is coaxially fixed inside the cooling pipe 5, one end of which is connected to an external refrigerator for continuously delivering cooling gas. The cooling pipe 51 is provided with a plurality of air flow holes 52 penetrating the side wall of the cooling pipe 5, so that cold air can be delivered for rapid cooling.

[0035] In this embodiment, a plurality of control nozzles 6 are spaced apart on the cooling tube 5, an atomizing sleeve 62 is fixed at the end of the control nozzle 6, a fast flow tube 63 is slidably provided in the control nozzle 6 through a connecting spring 66, a jet head is fixed at one end of the fast flow tube 63, a front chamber 61 is provided in the control nozzle 6, the fast flow tube 63 can seal and block the front chamber 61 through a blocking sleeve 65 during sliding, a ball shaft 64 is fixed in the control nozzle 6, the ball shaft 64 can be sealed and matched with one end of the fast flow tube 63, wherein when the lithium battery box is cooling down, the water pressure in the cooling tube is pumped at a low pressure, at which time the water source enters the atomizing sleeve through the front chamber for diffusion, thereby achieving a humidification and cooling effect, and preventing the lithium battery box from overheating and causing fire.

[0036] In this embodiment, when the water pressure in the cooling pipe 5 is pumped at medium or low pressure, the fast flow pipe 63 can be separated from the ball shaft 64 under the push of the water flow. At this time, the jet head is in a flow state, so that targeted water supply can be achieved at the fire source during fire fighting, and the fire can be put out quickly.

[0037] As a preferred embodiment, the connecting spring 66 in the control nozzle 6 at the odd position is a high-strength spring. When the water pressure in the cooling pipe 5 is pumped at medium pressure, the jet head in each control nozzle 6 is opened. During fire fighting, the water pressure in the cooling pipe can be switched back and forth between medium pressure and medium-low pressure. On the one hand, the jet heads on each control nozzle are all open, and the water supply and fire extinguishing efficiency is high at this time. On the other hand, the control nozzles at the odd positions are diffusely sprayed by the atomizing sleeve when the water pressure is pumped at medium and low pressure to prevent the spread of fire.

[0038] In this embodiment, a shaft tube 7 is fixed on the positioning sleeve near the side of the water supply pipe 33, one end of the cooling tube 5 is rotatably connected to the shaft tube 7, a baffle 71 is fixed in the shaft tube 7, an outer notch is provided on the cooling tube 5, the baffle 71 rotates relatively along the outer notch, and one end of the baffle 71 is in sealing contact with the shaft column in the cooling tube 5, a partition plate is coaxially fixed in the cooling tube 5, the partition plate is provided with a liquid hole, and the cooling tube 5 is located between the partition plate and the shaft. An inner dividing plate 53 is fixed between the tubes 7, and the inner dividing plate 53 cooperates with the baffle plate 71 to form a guide cavity 54. A flow hole is provided on the shaft tube 7 at the guide cavity 54 for connecting the water supply pipe 33. A torsion spring is provided between the cooling tube and the shaft tube. When the water pressure in the cooling tube can switch back and forth between medium pressure and medium-low pressure, the guide cavity is expanded or reduced by the water pressure, thereby realizing the autonomous deflection of the cooling tube relative to the shaft tube, thereby providing a large range of water spraying in fire fighting.

[0039] In this embodiment, an inner dividing plate 2 is further provided inside the cooling pipe 5, and the inner dividing plate 2 cooperates with the baffle plate 71 to form a flow chamber 55. A foam tube is connected to the outside of the flow chamber 55 through a flow hole. In particular, the foam fire extinguishing agent is intermittently pumped through the foam tube. At this time, the flow chamber can be expanded accordingly, so that the cooling pipe produces a reverse deflection, thereby cooperating with the fire water in the guide chamber to realize the deflection of the cooling pipe during firefighting work.

[0040] Specifically, the bottom of the lithium battery box in the energy storage power station can be cooled by contact through the heat dissipation jacking mechanism, and the adjacent lithium battery boxes can be tilted and adjusted by the jacking effect during cooling, thereby forming a heat exchange space; in fire fighting, the heat dissipation jacking mechanism can realize the lithium battery box to be installed at an angle of α3 (α3 is greater than 12°), at this time, the adjacent upper lithium battery box is installed at an angle of α2 (α2 is greater than 18°), and the control nozzle on the cooling pipe is controlled at α1 (27°<α1<73°). At this time, the fire fighting space between the lithium battery boxes is large, which is convenient for water source to extinguish the fire source.

[0041] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery fire prevention and cooling device for an energy storage power station, characterized in that: It includes: A fire pump box (11) is installed on one side of the interior of a power station box (1), wherein a plurality of fire water pipes (12) are distributed in the power station box (1), and a fire sprinkler (13) is installed on the fire water pipes (12); carriers (2) are arranged in the power station box (1), and heat dissipation lifting mechanisms (4) are provided on each installation layer of the carriers (2), and the heat dissipation lifting mechanisms (4) are used to contact-type cool the bottom of the lithium battery box on the installation layer, and to tilt and lift one side of the lithium battery box upward when the lithium battery box is extinguished for fire fighting; Cooling components (3) are vertically slidably installed on both the front and rear sides of the carrier (2). The cooling components (3) sequentially inspect and cool the lithium battery boxes on each installation layer, and extinguish the fire as soon as a fire occurs in the lithium battery box.

2. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 1, characterized in that: The heat dissipation lifting mechanism (4) comprises: a heat conducting plate (41) having an inner tube (42) arranged therein, the inner tube (42) being arranged in a serpentine shape, a liquid discharge pipe (44) being connected to the middle of the inner tube (42) in the heat conducting plate (41), a plurality of liquid inlet pipes (43) being symmetrically arranged on the periphery of the heat conducting plate (41), a plurality of guide cylinders (45) being vertically fixed on the heat conducting plate (41), a push rod being slidably arranged in the guide cylinder (45), one end of the liquid inlet pipe (43) being connected to the lower side of the guide cylinder (45), and the guide cylinder (45) and the inner tube (42) being connected and communicated via a rotating pipe (46).

3. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 2, characterized in that: When the coolant flow rate pumped by the inlet pipe outside the guide cylinder (45) is higher than the discharge flow rate of the discharge pipe (44), the push rod can be pushed by the coolant to gradually extend out of the guide cylinder (45); the distance between the lithium battery box and the relatively upper installation layer is not less than 35mm, so that the adjacent lithium battery boxes are distributed in parallel or in a < shape under the lifting effect.

4. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 1, characterized in that: The cooling component (3) comprises: a sliding frame (31) symmetrically distributed on the carrier (2); a linkage sleeve (32) is slidably arranged on the sliding frame (31); a cooling pipe (5) is horizontally arranged between the linkage sleeves (32); a water supply pipe (33) is also arranged outside the carrier (2); one end of the water supply pipe (33) is connected to the cooling pipe (5); a positioning sleeve is fixed on the linkage sleeve (32); and both ends of the cooling pipe (5) are rotatably connected to the positioning sleeve; A cooling pipe (51) is coaxially fixed inside the cooling pipe (5), one end of the cooling pipe (51) is connected to an external refrigerator for continuously conveying cooling gas, and the cooling pipe (51) is provided with a plurality of air flow holes (52) penetrating the side wall of the cooling pipe (5).

5. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 4, characterized in that: A plurality of control nozzles (6) are spaced apart on the cooling pipe (5); an atomizing sleeve (62) is fixed to the end of the control nozzle (6); a fast flow tube (63) is slidably arranged in the control nozzle (6) via a connecting spring (66); a jet head is fixed to one end of the fast flow tube (63); a front chamber (61) is arranged in the control nozzle (6); the fast flow tube (63) can seal and block the front chamber (61) through a blocking sleeve (65) during sliding; a ball shaft (64) is fixed in the control nozzle (6); the ball shaft (64) can be sealed and matched with one end of the fast flow tube (63).

6. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 4, characterized in that: When the water pressure in the cooling pipe (5) is pumped at a medium or low pressure, the fast flow pipe (63) can be separated from the ball shaft (64) under the push of the water flow, and the jet head is in a flow state at this time.

7. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 5, characterized in that: The connecting springs (66) in the control nozzles (6) at odd positions are high-strength springs. When the water pressure in the cooling pipe (5) is pumped at medium pressure, the jet heads in the control nozzles (6) are opened.

8. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 4, characterized in that: A shaft tube (7) is fixed on the positioning sleeve on the side close to the water supply pipe (33), one end of the cooling pipe (5) is rotatably connected in the shaft tube (7), a baffle (71) is fixed in the shaft tube (7), an outer notch is provided on the cooling pipe (5), the baffle (71) rotates relatively along the outer notch, and one end of the baffle (71) is in sealing contact with the shaft column in the cooling pipe (5), a partition plate is coaxially fixed in the cooling pipe (5), the partition plate is provided with a liquid hole, and an inner dividing plate (53) is fixed in the cooling pipe (5) between the partition plate and the shaft tube (7), the inner dividing plate (53) and the baffle (71) cooperate to form a guide cavity (54), and a flow hole is provided in the guide cavity (54) on the shaft tube (7) for connecting the water supply pipe (33).

9. The lithium battery fire prevention and cooling device for an energy storage power station according to claim 8, characterized in that: The cooling tube (5) is also provided with an inner dividing plate No. 2, which cooperates with the baffle plate (71) to form a flow cavity (55), and the outside of the flow cavity (55) is connected to a foam tube through a flow hole.

Images