Machine room energy storage equipment

Abstract

The invention relates to the technical field of machine room energy storage, in particular to machine room energy storage equipment which comprises an energy storage cabinet, battery packs and a pressure release valve, the multiple battery packs are evenly and symmetrically arranged on the left side and the right side in the energy storage cabinet from bottom to top, and carbon dioxide refrigeration assemblies used for conducting heat dissipation on the battery packs are arranged in the battery packs; the carbon dioxide refrigeration assembly can carry out fire extinguishing on the battery pack when the battery pack is subjected to thermal runaway; and pressure release valves are mounted on the energy storage cabinet and each battery pack. The machine room energy storage equipment provided by the invention has a good heat dissipation effect and can be used for carrying out fire extinguishing treatment on a fire source in time when the battery packs are subjected to thermal runaway.

Description

Technical Field

[0001] The present invention relates to the technical field of computer room energy storage, and in particular to a computer room energy storage device. Background Art

[0002] In the IT industry, a computer room generally refers to a place where servers are stored and IT services are provided to users and employees by telecommunications, Netcom, mobile, dual-line, electric power, government or enterprise companies. When the city power is cut off, in order to ensure the normal operation of the servers in the computer room, energy storage devices integrating multiple battery packs are usually installed in the computer room.

[0003] However, the heat dissipation effect of the energy storage equipment currently used in computer rooms is poor; when thermal runaway occurs in the energy storage equipment, firefighting cannot be carried out in time. Summary of the invention

[0004] The purpose of the present invention is to provide a computer room energy storage device to solve the technical problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A computer room energy storage device comprises: an energy storage cabinet, a battery pack and a pressure relief valve, wherein a plurality of battery packs are evenly and symmetrically arranged on the left and right sides from bottom to top inside the energy storage cabinet, a carbon dioxide refrigeration assembly for dissipating heat from the battery pack is arranged inside the battery pack, and the carbon dioxide refrigeration assembly can extinguish the battery pack when thermal runaway occurs in the battery pack; and a pressure relief valve is installed on the energy storage cabinet and each battery pack.

[0007] Furthermore, a transverse partition is provided at the upper part of the inner cavity of the energy storage cabinet, and a controller is fixedly installed on the top of the transverse partition.

[0008] Furthermore, it also includes: columns and mounting frames, wherein four columns are symmetrically arranged on both sides below the transverse partition, and a number of mounting frames are evenly arranged from bottom to top between the four columns on the same side, and a number of battery packs are detachably fixed on the number of mounting frames.

[0009] Furthermore, the battery pack includes: a battery shell, a carbon dioxide refrigeration component, a battery cell and a battery cover plate, the carbon dioxide refrigeration component includes: a heat dissipation base, a fire detector, a carbon dioxide liquid inlet pipe fitting, a carbon dioxide liquid outlet pipe fitting and a fire extinguishing component, the battery shell is a shell with an opening at the top, the battery shell top is detachably fixedly mounted with a battery cover plate, the battery cover bottom is fixedly mounted with a fire detector, a plurality of heat dissipation bases are evenly arranged at the bottom of the inner cavity of the battery shell, a plurality of battery cells are evenly fixedly mounted on the top of the heat dissipation base, a circuitous fluid channel is opened inside the heat dissipation base, the two ends of the circuitous fluid channel are respectively connected to the output end of the carbon dioxide liquid inlet pipe fitting and the input end of the carbon dioxide liquid outlet pipe fitting, the input end of the carbon dioxide liquid inlet pipe fitting and the output end of the carbon dioxide liquid outlet pipe fitting are respectively connected to the output end and the input end of the carbon dioxide circulation radiator, the carbon dioxide liquid inlet pipe fitting is also connected to a plurality of fire extinguishing components, and the plurality of fire extinguishing components are located above a plurality of battery cells and facing a plurality of heat dissipation bases.

[0010] Furthermore, the fire detector includes: a smoke detector and a temperature sensor, and the smoke detector and the temperature sensor are integrated together.

[0011] Furthermore, the carbon dioxide liquid inlet pipe fitting comprises: an inlet nozzle, an inlet pipe, a liquid inlet tee-way 1, a liquid inlet connecting pipe 1, a liquid inlet four-way, a liquid inlet connecting pipe 2, a liquid inlet connecting nozzle, a liquid inlet connecting pipe 3 and a liquid inlet tee-way 2. The inlet pipe passes through from the inside to the outside and is fixedly connected to one side of the battery shell. The inlet pipe is connected to the inlet nozzle on the outside of the battery shell. The inlet pipe is symmetrically connected to one end of two liquid inlet connecting pipes 1 through the liquid inlet tee-way 1 on the inside of the battery shell. The liquid inlet four-way is provided with a plurality of them. The liquid inlet tee-way 2 is provided with two of them. The other ends of the two liquid inlet connecting pipes 1 are connected to two adjacent liquid inlet four-ways. The two adjacent liquid inlet four-ways and the liquid inlet tee-way 2 and the adjacent liquid inlet four-ways are all connected through the liquid inlet connecting pipe 3. The plurality of liquid inlet four-ways and the liquid inlet tee-way 2 on the same side are all connected to the liquid inlet connecting pipe 2. The bottom end of the liquid inlet connecting pipe 2 is provided with a liquid inlet connecting nozzle, and the liquid inlet connecting nozzle is connected to one end of the circuitous fluid channel.

[0012] Furthermore, the carbon dioxide liquid outlet pipe fitting comprises: a liquid outlet nozzle, a liquid outlet pipe, a liquid outlet tee-way 1, a liquid outlet connecting pipe 1, a liquid outlet tee-way 2, a liquid outlet connecting pipe 2, a liquid outlet connecting nozzle, a liquid outlet connecting pipe 3 and two liquid outlets. The liquid outlet pipe penetrates from the inside to the outside and is fixedly connected to one side of the battery shell. The liquid outlet pipe is connected to the liquid outlet nozzle on the outside of the battery shell. The liquid outlet pipe is symmetrically connected to one end of two liquid outlet connecting pipes 1 through the liquid outlet tee-way 1 on the inside of the battery shell. Several liquid outlet tees-2 are provided. Two liquid outlet twos are provided. The other ends of the two liquid outlet connecting pipes 1 are connected to two adjacent liquid outlet tees-2. Two adjacent liquid outlet tees-2 and the liquid outlet twos and the adjacent liquid outlet tees-2 are all connected through the liquid outlet connecting pipe 3. Several liquid outlet tees-2 and the two liquid outlets on the same side are all connected to the liquid outlet connecting pipe 2. The bottom end of the liquid outlet connecting pipe 2 is provided with a liquid outlet connecting nozzle, and the liquid outlet connecting nozzle is connected to the other end of the circuitous fluid channel.

[0013] Furthermore, the fire extinguishing assembly includes: a fire connecting pipe 1, a solenoid valve, a fire connecting pipe 2 and a carbon dioxide fire sprinkler, one end of the fire connecting pipe 1 is connected to a corresponding liquid inlet four-way, the other end of the fire connecting pipe 1 is connected to one end of the solenoid valve, the other end of the solenoid valve is connected to one end of the fire connecting pipe 2, and the other end of the fire connecting pipe 2 is provided with a carbon dioxide fire sprinkler.

[0014] Furthermore, the pressure relief valve includes: a flange tube, an end cover, an L-shaped claw, a cross bracket, a spring, a bearing, a pipe shaft, a sliding rod, a reinforcing rib, a sliding key, a driving shaft, an electric telescopic rod and an "I"-shaped bracket. The flange tube is an axially penetrating tube body. The flange tube penetrates and is fixedly installed on the lower part of the side wall of the energy storage cabinet or one side of the battery shell to connect the inner and outer sides of the side wall of the energy storage cabinet or the inner and outer sides of the battery shell. A cross bracket is fixedly connected to the middle part of the inner cavity of the flange tube. A mounting circular hole is provided in the middle part of the cross bracket. The pipe shaft is rotatably installed in the mounting circular hole through a bearing. Two axial sliding grooves are symmetrically provided on the inner side of the mounting circular hole. A driving shaft is axially slidably connected in the axial sliding groove. The driving shaft is fixedly connected to the telescopic end of the electric telescopic rod. The telescopic end of the electric telescopic rod movably penetrates from the outer end of the "I"-shaped bracket to the inside of the axial sliding groove. The electric telescopic rod is fixedly installed on the outside of the cross bracket through the "I"-shaped bracket. The side ends of the tube shaft are provided with two threaded keyways which are symmetrically arranged at the center, and the driving shaft is slidably connected to the threaded keyways corresponding thereto; the middle part of the tube shaft is provided with a through hole which passes axially therethrough, and a strip keyway is provided on the inner wall of the through hole, and the inner side of the outer wall of the sliding rod is fixedly connected with a sliding key, the sliding rod movably passes through the through hole and the sliding key is slidably connected to the strip keyway, and the outer end of the sliding rod is fixedly connected to the middle part of the inner end of the end cover, and the inner end of the end cover is evenly provided with a plurality of L-shaped claws, and the outer side of the flange tube is evenly provided with a plurality of L-shaped grooves, and the plurality of L-shaped claws correspond to the plurality of L-shaped grooves one by one and are detachably engaged, and a spring is provided between the inner end of the end cover and the outer end of the cross bracket, and the end cover cooperates with the outer port of the flange tube; when the driving shaft moves from the left end of the threaded keyway to the right end, the head of the L-shaped claw moves from the tangential end of the L-shaped groove to the axial end.

[0015] Furthermore, a plurality of reinforcing ribs are evenly arranged at the connection between the slide rod and the end cover, and the axial end to the axial head end of the L-shaped slot are arranged in a V shape.

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

[0017] The carbon dioxide refrigeration component is set up to dissipate heat for the battery cells in the battery pack. When the battery cells in the battery pack are thermally runaway, the fire detector promptly detects the smoke and temperature in the battery pack and promptly feeds back the information to the controller. The controller controls several solenoid valves in the battery pack to open synchronously, and the hydraulic carbon dioxide in the carbon dioxide inlet pipe is sprayed out through several carbon dioxide fire sprinklers to extinguish the fire source inside the battery pack. At the same time, the controller controls the electric telescopic rod to extend, thereby driving the drive shaft to move from the left end of the threaded keyway to the right end. At this time, the head of the L-shaped claw moves from the tangential end of the L-shaped slot to the axial end and pops out the end cover under the elastic force of the spring, thereby promptly relieving the pressure on the battery pack. At the same time, the end cover on the pressure relief valve on the energy storage cabinet also pops out to relieve the pressure on the energy storage cabinet, effectively reducing the risk of thermal runaway of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 is a cross-sectional view of the present invention;

[0021] Figure 4 is an external structural view of the battery pack of the present invention;

[0022] Figure 5 is a longitudinal sectional view of the battery pack of the present invention;

[0023] Figure 6 is an exploded view of the battery pack of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of the internal components of the battery pack of the present invention;

[0025] Figure 8 is a cross-sectional view of the present invention at the heat dissipation base;

[0026] Fig. 9 is a cross-sectional view of the pressure relief valve of the present invention;

[0027] Fig.10 is an exploded view of the pressure relief valve of the present invention;

[0028] Fig.11 The present invention Fig.10 A partial enlarged view of point A in the middle;

[0029] Fig.12 The present invention Fig.10 A magnified partial view of point B in the middle.

[0030] The numbers in the accompanying drawings are: 1-energy storage cabinet, 2-transverse partition, 3-column, 4-mounting frame, 5-battery pack, 501-battery shell, 502-heat dissipation base, 5021-circuitous fluid channel, 503-battery core, 504-battery cover, 505-fire detector, 506-carbon dioxide liquid inlet pipe fitting, 506a-liquid inlet nozzle, 506b-liquid inlet pipe, 506c-liquid inlet tee one, 506d-liquid inlet connecting pipe one, 506e-liquid inlet four-way, 506f-liquid inlet connecting pipe two, 506g-liquid inlet connecting nozzle, 506h-liquid inlet connecting pipe three, 506i-liquid inlet tee two, 507-carbon dioxide liquid outlet pipe fitting, 507a-liquid outlet nozzle, 507b-liquid outlet pipe, 507c-liquid outlet tee one, 507d-liquid outlet connecting pipe one, 507e- Liquid outlet three-way two, 507f-liquid outlet connecting pipe two, 507g-liquid outlet connecting nozzle, 507h-liquid outlet connecting pipe three, 507i-liquid outlet two-way, 508-fire extinguishing assembly, 508a-fire connecting pipe one, 508b-solenoid valve, 508c-fire connecting pipe two, 508d-carbon dioxide fire sprinkler, 6-controller, 7-pressure relief valve, 701-flange pipe, 7011-L-shaped slot, 702-end cover, 703-L-shaped claw, 704-cross bracket, 7041-axial slide groove, 705-spring, 706-bearing, 707-pipe shaft, 7071-strip keyway, 7072-thread keyway, 708-slide rod, 709-reinforcement rib, 710-slide key, 711-drive shaft, 712-electric telescopic rod, 713-X-shaped bracket. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032] See also Figures 1 to 12 As shown, an energy storage device for a computer room includes: an energy storage cabinet 1, a battery pack 5 and a pressure relief valve 7. A plurality of battery packs 5 are evenly and symmetrically arranged on the left and right sides of the energy storage cabinet 1 from bottom to top. A carbon dioxide refrigeration component for dissipating heat from the battery pack is arranged inside the battery pack 5. The carbon dioxide refrigeration component can extinguish a fire on the battery pack 5 when thermal runaway occurs in the battery pack 5. A pressure relief valve 7 is installed on the energy storage cabinet 1 and each battery pack 5.

[0033] In this embodiment, a transverse partition 2 is provided at the upper part of the inner cavity of the energy storage cabinet 1, and a controller 6 is fixedly installed on the top of the transverse partition 2. The controller 6 is used to control the operation of the electrical components of the entire device.

[0034] In this embodiment, the computer room energy storage equipment also includes: columns 3 and mounting frames 4. Four columns 3 are symmetrically arranged on both sides below the transverse partition 2. Several mounting frames 4 are evenly arranged from bottom to top between the four columns 3 on the same side. Several battery packs 5 are detachably fixed on several mounting frames 4.

[0035] In this embodiment, the battery pack 5 includes: a battery shell 501, a carbon dioxide refrigeration component, a battery cell 503 and a battery cover 504. The carbon dioxide refrigeration component includes: a heat dissipation base 502, a fire detector 505, a carbon dioxide liquid inlet pipe 506, a carbon dioxide liquid outlet pipe 507 and a fire extinguishing component 508. The battery shell 501 is a shell with an opening at the top. The battery cover 504 is detachably fixedly installed on the top of the battery shell 501, and the fire detector 505 is fixedly installed on the bottom of the battery cover 504. A plurality of heat dissipation bases 502 are evenly arranged at the bottom of the inner cavity of the battery shell 501, and a plurality of battery cells 503 are evenly fixedly installed on the top of the heat dissipation base 502. A circuitous fluid channel 5021 is provided inside the heat base 502, and the two ends of the circuitous fluid channel 5021 are respectively connected to the output end of the carbon dioxide inlet pipe fitting 506 and the input end of the carbon dioxide outlet pipe fitting 507, and the input end of the carbon dioxide inlet pipe fitting 506 and the output end of the carbon dioxide outlet pipe fitting 507 are respectively connected to the output end and the input end of the carbon dioxide circulation radiator, and the carbon dioxide inlet pipe fitting 506 is also connected to a plurality of fire extinguishing components 508, and the plurality of fire extinguishing components 508 are located above a plurality of battery cells 503 and facing a plurality of heat dissipation bases 502; the provided carbon dioxide refrigeration components can well dissipate the heat of the battery cells 503 in the battery pack 5.

[0036] In this embodiment, the fire detector 505 includes: a smoke detector and a temperature sensor, which are integrated together. The smoke detector is used to detect the smoke situation in the battery pack 5; the temperature sensor is used to monitor the temperature in the battery pack 5 in real time.

[0037] In this embodiment, the carbon dioxide liquid inlet pipe 506 includes: a liquid inlet nozzle 506a, a liquid inlet pipe 506b, a liquid inlet tee 1 506c, a liquid inlet connecting pipe 1 506d, a liquid inlet four-way 506e, a liquid inlet connecting pipe 2 506f, a liquid inlet connecting nozzle 506g, a liquid inlet connecting pipe 3 506h and a liquid inlet tee 2 506i. The liquid inlet pipe 506b penetrates from the inside to the outside and is fixedly connected to one side of the battery housing 501. The liquid inlet pipe 506b is connected to the liquid inlet nozzle 506a on the outside of the battery housing 501. The liquid inlet pipe 506b is symmetrically connected to one end of two liquid inlet connecting pipes 1 506d through the liquid inlet tee 1 506c on the inside of the battery housing 501. There are several liquid inlet four-way valves 506e and two liquid inlet three-way valves 506i. The other ends of the two liquid inlet connecting pipes 1 506d are connected to the two adjacent liquid inlet four-way valves 506e. The two adjacent liquid inlet four-way valves 506e and the liquid inlet three-way valve 506i and the adjacent liquid inlet four-way valve 506e are all connected through the liquid inlet connecting pipe 3 506h. Several liquid inlet four-way valves 506e and liquid inlet three-way valve 506i on the same side are connected to the liquid inlet connecting pipe 2 506f. The bottom of the liquid inlet connecting pipe 2 506f is provided with a liquid inlet connecting nozzle 506g, and the liquid inlet connecting nozzle 506g is connected to one end of the circuitous fluid channel 5021.

[0038] The carbon dioxide liquid outlet pipe fitting 507 includes: a liquid outlet nozzle 507a, a liquid outlet pipe 507b, a liquid outlet three-way 507c, a liquid outlet connecting pipe 1 507d, a liquid outlet three-way 507e, a liquid outlet connecting pipe 2 507f, a liquid outlet connecting nozzle 507g, a liquid outlet connecting pipe 3 507h and a liquid outlet two-way 507i. The liquid outlet pipe 507b penetrates from the inside to the outside and is fixedly connected to one side of the battery housing 501. The liquid outlet pipe 507b is connected to the liquid outlet nozzle 507a on the outside of the battery housing 501. The liquid outlet pipe 507b is symmetrically connected to one end of two liquid outlet connecting pipes 1 507d through the liquid outlet three-way 507c on the inside of the battery housing 501. The liquid outlet three-way There are several liquid outlet two-way 507e, and there are two liquid outlet two-way 507i. The other ends of the two liquid outlet connecting pipes 1 507d are connected to the two adjacent liquid outlet tees 2 507e. The two adjacent liquid outlet tees 2 507e and the liquid outlet two-way 507i and the adjacent liquid outlet tee 2 507e are connected through the liquid outlet connecting pipe 3 507h. Several liquid outlet tees 2 507e and liquid outlet two-way 507i on the same side are connected to the liquid outlet connecting pipe 2 507f. The bottom end of the liquid outlet connecting pipe 2 507f is provided with a liquid outlet connecting nozzle 507g, and the liquid outlet connecting nozzle 507g is connected to the other end of the circuitous fluid channel 5021.

[0039] In this embodiment, the fire extinguishing assembly 508 includes: a fire connecting pipe 1 508a, a solenoid valve 508b, a fire connecting pipe 2 508c and a carbon dioxide fire sprinkler 508d. One end of the fire connecting pipe 1 508a is connected to the corresponding liquid inlet four-way 506e, and the other end of the fire connecting pipe 1 508a is connected to one end of the solenoid valve 508b, and the other end of the solenoid valve 508b is connected to one end of the fire connecting pipe 2 508c. The other end of the fire connecting pipe 2 508c is provided with a carbon dioxide fire sprinkler 508d; when the battery cell 503 in the battery pack 5 has thermal runaway, the controller 6 controls the several solenoid valves 508b in the battery pack 5 to open synchronously, and the hydraulic carbon dioxide in the carbon dioxide liquid inlet pipe is sprayed out through the several carbon dioxide fire sprinklers 508d to extinguish the fire source inside the battery pack 5.

[0040] In this embodiment, the pressure relief valve 7 includes: a flange tube 701, an end cover 702, an L-shaped claw 703, a cross bracket 704, a spring 705, a bearing 706, a pipe shaft 707, a sliding rod 708, a reinforcing rib 709, a sliding key 710, a driving shaft 711, an electric telescopic rod 712 and a "X"-shaped bracket 713. The flange tube 701 is a pipe body that penetrates axially. The flange tube 701 penetrates and is fixedly installed on the lower part of the side wall of the energy storage cabinet 1 or on one side of the battery housing 501 to connect the inner and outer sides of the side wall of the energy storage cabinet 1 or the inner and outer sides of the battery housing 501. The middle part of the inner cavity of the flange tube 701 is fixedly connected with a cross bracket 704. A mounting circular hole is opened in the middle of the cross bracket 704. The pipe shaft 707 rotates through the bearing 706. The electric telescopic rod 712 is movably installed in the installation circular hole, and two axial sliding grooves 7041 are symmetrically arranged on the inner side of the installation circular hole. A driving shaft 711 is axially slidably connected in the axial sliding groove 7041. The driving shaft 711 is fixedly connected to the telescopic end of the electric telescopic rod 712. The telescopic end of the electric telescopic rod 712 is movably penetrated from the outer end of the "J"-shaped bracket 713 to the inside of the axial sliding groove 7041. The electric telescopic rod 712 is fixedly installed at the outer end of the cross bracket 704 through the "J"-shaped bracket 713. Two threaded keyways 7072 arranged symmetrically with the center are arranged on the outer wall of the tube shaft 707. The driving shaft 711 is slidably connected in the threaded keyways 7072 corresponding thereto; an axially penetrating through-hole is arranged in the middle of the tube shaft 707, and the inner wall of the through-hole A strip keyway 7071 is provided on the top, a slide key 710 is fixedly connected to the inner side of the outer wall of the slide rod 708, the slide rod 708 is movably arranged in the through hole and the slide key 710 is slidably connected to the strip keyway 7071, the outer end of the slide rod 708 is fixedly connected to the middle part of the inner end of the end cover 702, the inner end of the end cover 702 is evenly provided with a plurality of L-shaped claws 703, the outer side of the inner wall of the flange tube 701 is evenly provided with a plurality of L-shaped card grooves 7011, the plurality of L-shaped claws 703 correspond to the plurality of L-shaped card grooves 7011 one by one and can be detachably snap-fitted, a spring 705 is provided between the inner end of the end cover 702 and the outer end of the cross bracket 704, and the end cover 702 is matched with the outer port of the flange tube 701; the driving shaft 711 When moving from the left end of the threaded keyway 7072 to the right end, the head of the L-shaped claw 703 moves from the tangential end of the L-shaped slot 7011 to the axial end; when the battery cell 503 in the battery pack 5 has thermal runaway, the controller 6 controls the electric telescopic rod 712 to extend, thereby driving the driving shaft 711 to move from the left end of the threaded keyway 7072 to the right end. At this time, the head of the L-shaped claw 703 moves from the tangential end of the L-shaped slot 7011 to the axial end and pops out the end cover 702 under the elastic force of the spring 705, so as to relieve the pressure of the battery pack 5 in time; at the same time, the end cover 702 on the pressure relief valve 7 on the energy storage cabinet 1 is also popped out to relieve the pressure of the energy storage cabinet 1, thereby effectively reducing the risk of thermal runaway of the battery pack 5.

[0041] In this embodiment, a number of reinforcing ribs 709 are evenly arranged at the connection between the slide rod 708 and the end cover 702. The arranged reinforcing ribs 709 can improve the connection stability between the slide rod 708 and the end cover 702; the axial end to the axial head end of the L-shaped slot 7011 is arranged in a V shape, so that the L-shaped claw 703 can smoothly slide out of the axial direction of the L-shaped slot 7011.

[0042] Working principle: When the whole device is working normally, the input end of the carbon dioxide liquid inlet pipe 506 and the output end of the carbon dioxide liquid outlet pipe 507 are connected to the output end and the input end of the carbon dioxide circulation radiator respectively; the liquid carbon dioxide enters the circuitous fluid channel 5021 in the plurality of heat dissipation bases 502 from the carbon dioxide liquid inlet pipe 506, and the heat generated by the plurality of battery cells 503 at the top of the heat dissipation base 502 is promptly transferred to the liquid carbon dioxide through the heat conduction effect, and the liquid carbon dioxide with heat is transported from the carbon dioxide liquid outlet pipe 507 to the carbon dioxide circulation heat dissipation, and the heat is promptly dissipated; when the battery cell 503 in the battery pack 5 has thermal runaway, the fire detector 505 promptly detects the smoke and temperature in the battery pack 5 and promptly feeds back the information to the controller 6. The controller 6 controls the multiple solenoid valves 508b in the battery pack 5 to open synchronously, and the hydraulic carbon dioxide in the carbon dioxide liquid inlet pipe 506 is sprayed out through the multiple carbon dioxide fire sprinklers 508d to extinguish the fire source inside the battery pack 5. At the same time, the controller 6 controls the electric telescopic rod 712 to extend, thereby driving the driving shaft 711 to move from the left end to the right end of the threaded keyway 7072. At this time, the head of the L-shaped claw 703 moves from the tangential end of the L-shaped slot 7011 to the axial end and pops out the end cover 702 under the elastic force of the spring 705, so as to timely relieve the pressure of the battery pack 5; at the same time, the end cover 702 on the pressure relief valve 7 on the energy storage cabinet 1 is also popped out to relieve the pressure of the energy storage cabinet 1, effectively reducing the risk of thermal runaway of the battery pack 5.

[0043] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top / bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the profession, without departing from the scope of the technical solution of the present invention, according to the technical essence of the present invention, any simple modification, equivalent replacement and improvement made to the above embodiment still falls within the protection scope of the technical solution of the present invention.

Claims

1. A computer room energy storage device, characterized in that: include: An energy storage cabinet (1), a battery pack (5) and a pressure relief valve (7), wherein a plurality of battery packs (5) are evenly and symmetrically arranged on the left and right sides from bottom to top inside the energy storage cabinet (1), and a carbon dioxide refrigeration component for dissipating heat from the battery pack is arranged inside the battery pack (5), and the carbon dioxide refrigeration component can extinguish a fire in the battery pack (5) when thermal runaway occurs in the battery pack (5); and a pressure relief valve (7) is installed on the energy storage cabinet (1) and each battery pack (5).

2. The energy storage device for a computer room according to claim 1, characterized in that: A transverse partition (2) is provided at the upper part of the inner cavity of the energy storage cabinet (1), and a controller (6) is fixedly mounted on the top of the transverse partition (2).

3. The energy storage device for a computer room according to claim 2, characterized in that: Also includes: A column (3) and a mounting frame (4), wherein four columns (3) are symmetrically arranged on both sides below the transverse partition (2), and a plurality of mounting frames (4) are evenly arranged from bottom to top between the four columns (3) on the same side of the left and right sides, and a plurality of battery packs (5) are respectively detachably fixedly mounted on the plurality of mounting frames (4).

4. The energy storage device for a computer room according to claim 1, characterized in that: The battery pack (5) comprises: a battery housing (501), a carbon dioxide refrigeration component, a battery cell (503) and a battery cover (504); the carbon dioxide refrigeration component comprises: a heat dissipation base (502), a fire detector (505), a carbon dioxide liquid inlet pipe (506), a carbon dioxide liquid outlet pipe (507) and a fire extinguishing component (508); the battery housing (501) is a shell with an opening at the top; the battery cover (504) is detachably fixedly mounted on the top of the battery housing (501); the fire detector (505) is fixedly mounted on the bottom of the battery cover (504); a plurality of heat dissipation bases (502) are evenly arranged at the bottom of the inner cavity of the battery housing (501); the heat dissipation bases (502) are arranged on the inner cavity of the battery housing (501) ) is evenly and fixedly mounted on the top of the heat dissipation base (502), a circuitous fluid channel (5021) is provided inside the heat dissipation base (502), the two ends of the circuitous fluid channel (5021) are respectively connected to the output end of the carbon dioxide inlet pipe fitting (506) and the input end of the carbon dioxide outlet pipe fitting (507), the input end of the carbon dioxide inlet pipe fitting (506) and the output end of the carbon dioxide outlet pipe fitting (507) are respectively connected to the output end and the input end of the carbon dioxide circulation radiator, the carbon dioxide inlet pipe fitting (506) is also connected to a plurality of fire extinguishing components (508), and the plurality of fire extinguishing components (508) are located above the plurality of battery cells (503) and directly facing the plurality of heat dissipation bases (502).

5. The energy storage device for a computer room according to claim 4, characterized in that: The fire detector (505) comprises: a smoke detector and a temperature sensor, and the smoke detector and the temperature sensor are integrated together.

6. The energy storage device for a computer room according to claim 4, characterized in that: The carbon dioxide liquid inlet pipe (506) comprises: a liquid inlet nozzle (506a), a liquid inlet pipe (506b), a liquid inlet tee (506c), a liquid inlet connecting pipe (506d), a liquid inlet tees (506e), a liquid inlet connecting pipe (506f), a liquid inlet connecting nozzle (506g), a liquid inlet connecting pipe (506h) and a liquid inlet tee (506i). The liquid inlet pipe (506b) penetrates from the inside to the outside and is fixedly connected to one side of the battery housing (501). The liquid inlet pipe (506b) is connected to the liquid inlet nozzle (506a) on the outside of the battery housing (501). The liquid inlet pipe (506b) is symmetrically connected to one end of two liquid inlet connecting pipes (506d) on the inside of the battery housing (501) through the liquid inlet tee (506c). There are a plurality of liquid inlet four-way pipes (506e), and there are two liquid inlet three-way pipes (506i). The other ends of the two liquid inlet connecting pipes (506d) are connected to the two adjacent liquid inlet four-way pipes (506e). The two adjacent liquid inlet four-way pipes (506e) and the liquid inlet three-way pipe (506i) and the adjacent liquid inlet four-way pipe (506e) are connected through the liquid inlet connecting pipe (3) (506h). The plurality of liquid inlet four-way pipes (506e) and the liquid inlet three-way pipe (506i) on the same side are connected to the liquid inlet connecting pipe (2) (506f). The bottom end of the liquid inlet connecting pipe (2) (506f) is provided with a liquid inlet connecting nozzle (506g), and the liquid inlet connecting nozzle (506g) is connected to one end of the circuitous fluid channel (5021).

7. The energy storage device for a computer room according to claim 4, characterized in that: The carbon dioxide liquid outlet pipe (507) comprises: a liquid outlet nozzle (507a), a liquid outlet pipe (507b), a liquid outlet three-way first (507c), a liquid outlet connecting pipe one (507d), a liquid outlet three-way second (507e), a liquid outlet connecting pipe two (507f), a liquid outlet connecting nozzle (507g), a liquid outlet connecting pipe three (507h) and a liquid outlet two-way (507i); the liquid outlet pipe (507b) penetrates from the inside to the outside and is fixedly connected to one side of the battery housing (501); the liquid outlet pipe (507b) is connected to the liquid outlet nozzle (507a) on the outside of the battery housing (501); the liquid outlet pipe (507b) is symmetrically connected to one end of two liquid outlet connecting pipes one (507d) through the liquid outlet three-way first (507c) on the inside of the battery housing (501); There are several liquid outlet tees (507e), and there are two liquid outlet two-way (507i). The other ends of the two liquid outlet connecting pipes (507d) are connected to the two adjacent liquid outlet tees (507e). The two adjacent liquid outlet tees (507e) and the liquid outlet two-way (507i) and the adjacent liquid outlet tees (507e) are all connected through the liquid outlet connecting pipe three (507h). Several liquid outlet tees (507e) and liquid outlet two-way (507i) on the same side are all connected to the liquid outlet connecting pipe two (507f). The bottom end of the liquid outlet connecting pipe two (507f) is provided with a liquid outlet connecting nozzle (507g), and the liquid outlet connecting nozzle (507g) is connected to the other end of the circuitous fluid channel (5021).

8. The energy storage device for a computer room according to claim 6, characterized in that: The fire extinguishing assembly (508) comprises: a fire connection pipe (508a), a solenoid valve (508b), a fire connection pipe (508c) and a carbon dioxide fire sprinkler (508d); one end of the fire connection pipe (508a) is connected to a corresponding liquid inlet four-way (506e); the other end of the fire connection pipe (508a) is connected to one end of the solenoid valve (508b); the other end of the solenoid valve (508b) is connected to one end of the fire connection pipe (508c); and the other end of the fire connection pipe (508c) is provided with a carbon dioxide fire sprinkler (508d).

9. The energy storage device for a computer room according to claim 4, characterized in that: The pressure relief valve (7) comprises: a flange pipe (701), an end cover (702), an L-shaped claw (703), a cross bracket (704), a spring (705), a bearing (706), a pipe shaft (707), a sliding rod (708), a reinforcing rib (709), a sliding key (710), a driving shaft (711), an electric telescopic rod (712) and an "X"-shaped bracket (713). The flange pipe (701) is a pipe body that penetrates axially. The flange pipe (701) penetrates and is fixedly installed at the lower part of the side wall of the energy storage cabinet (1) or one side of the battery housing (501) to connect the inner and outer sides of the side wall of the energy storage cabinet (1) or the inner and outer sides of the battery housing (501). The flange pipe (701) is provided with a plurality of inner and outer flanges. A cross bracket (704) is fixedly connected to the middle of the cavity, and a mounting circular hole is opened in the middle of the cross bracket (704). The pipe shaft (707) is rotatably installed in the mounting circular hole through a bearing (706). Two axial sliding grooves (7041) are symmetrically opened on the inner side of the mounting circular hole. A driving shaft (711) is axially slidably connected in the axial sliding groove (7041). The driving shaft (711) is fixedly connected to the telescopic end of the electric telescopic rod (712). The telescopic end of the electric telescopic rod (712) is movably penetrated from the outer end of the "J"-shaped bracket (713) to the inside of the axial sliding groove (7041). The electric telescopic rod (712) is fixedly installed through the "J"-shaped bracket (713). Mounted on the outer end of the cross bracket (704), the outer wall of the tube shaft (707) is provided with two threaded keyways (7072) arranged symmetrically with respect to the center, and the driving shaft (711) is slidably connected in the corresponding threaded keyways (7072); an axial through-hole is provided in the middle of the tube shaft (707), a strip keyway (7071) is provided on the inner wall of the through-hole, a slide key (710) is fixedly connected to the inner side of the outer wall of the sliding rod (708), the sliding rod (708) is movably arranged in the through-hole and the slide key (710) is slidably connected in the strip keyway (7071), the outer end of the sliding rod (708) is fixedly connected to the middle part of the inner end of the end cover (702), and the end cover A plurality of L-shaped claws (703) are evenly arranged at the inner end of the flange tube (701), and a plurality of L-shaped grooves (7011) are evenly opened on the outer side of the inner wall of the flange tube (701). The plurality of L-shaped claws (703) correspond to the plurality of L-shaped grooves (7011) one by one and can be detachably engaged with each other. A spring (705) is arranged between the inner end of the end cover (702) and the outer end of the cross bracket (704), and the end cover (702) is engaged with the outer port of the flange tube (701). When the drive shaft (711) moves from the left end to the right end of the threaded keyway (7072), the head of the L-shaped claw (703) moves from the tangential end of the L-shaped groove (7011) to the axial end.

10. The energy storage device for a computer room according to claim 9, characterized in that: A plurality of reinforcing ribs (709) are evenly arranged at the connection between the sliding rod (708) and the end cover (702), and the L-shaped slot (7011) is arranged in a V shape from the axial end to the axial head end.

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