Safe storage cabin of energy storage electric cabinet

Abstract

The safe storage cabin comprises a main monitoring system, a heat dissipation fire fighting system and a cabin body, a plurality of energy storage electric cabinets are stored in the cabin body, and a main energy storage converter, a main transformer and an electric cabinet management system which are connected with the energy storage electric cabinets are fixedly arranged in the cabin body; the cabin body is provided with a cabin door, the cabin door is provided with a display panel and a cabin body management server, and the cabin body management server is electrically connected with a valve of the fire sprinkler, the main monitoring system, the main energy storage converter, the main transformer, the electric cabinet management system, a control mechanism of a roller shutter type fireproof blanket in the heat dissipation fire extinguishing system and the display panel; the main monitoring system transmits detected signals to the cabin management server, the cabin management server controls the operation states of the roller shutter type fireproof blanket, the fire sprinkler, the main energy storage converter, the main transformer and the electric cabinet management system according to the received signals, operation data are displayed through the display panel, large-scale management of the energy storage electric cabinet is achieved, and the energy storage electric cabinet management efficiency is improved. The energy storage cost is reduced, and the space utilization rate is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of electrochemical energy storage, and in particular is a safety storage compartment of an energy storage cabinet. Background Art

[0002] As an important part of the energy storage industry, the power industry plays a key role in large-scale access of new energy to the grid, peak load shifting, participating in voltage and frequency regulation, and developing microgrids.

[0003] Lithium-ion battery energy storage cabinets, as the main representative of electrochemical energy storage technology, have a leading position in the current energy storage market. However, the safety issues of electrochemical energy storage power stations have attracted widespread attention, especially fire and explosion accidents caused by lithium batteries, which have become a key issue that needs to be urgently addressed in the development of the industry.

[0004] At present, in order to ensure the safety of the energy storage process, energy storage power stations generally adopt single-cabinet distributed grid-connected power. This method makes it difficult to achieve large-scale management of energy storage cabinets, the space utilization efficiency is very low, and it also increases the energy storage cost. Summary of the invention

[0005] The purpose of the present invention is to provide a safe storage compartment for an energy storage cabinet, which realizes large-scale management of the energy storage cabinet, reduces energy storage costs, and improves space utilization.

[0006] The present invention is achieved through the following technical solutions:

[0007] A safe storage cabin for an energy storage cabinet, comprising a general monitoring system, a heat dissipation and fire fighting system and a cabin body;

[0008] A plurality of energy storage cabinets are stored inside the cabin, and a total energy storage converter, a total transformer and a cabinet management system respectively connected to each energy storage cabinet are fixedly installed;

[0009] The overall monitoring system includes a gas sensor, a smoke sensor, and a temperature and flame sensor fixedly mounted on the top of the cabin;

[0010] The heat dissipation fire protection system includes a top fire blanket, a fire sprinkler and a rolling fire blanket fixedly installed on the top of the cabin body, and a bottom fire blanket fixedly installed on the bottom of the cabin body. After the rolling fire blanket is unfolded, it surrounds the energy storage cabinet.

[0011] The cabin body is provided with a door at the front side, the door is provided with a display panel and a cabin body management server, and the cabin body management server is electrically connected to the valve of the fire sprinkler, the main monitoring system, the main energy storage converter, the main transformer, the electric cabinet management system, the control mechanism of the rolling fire blanket, and the display panel respectively;

[0012] The overall monitoring system transmits the detected signal to the cabin management server, which controls the operating status of the rolling fire blanket, fire sprinkler, total energy storage inverter, total transformer and electrical cabinet management system according to the received signal, and displays the operating data through the display panel.

[0013] Furthermore, the heat dissipation fire fighting system further comprises a plurality of exhaust fans fixedly mounted on the outer side wall of the cabin, and the exhaust fans are electrically connected to the cabin management server;

[0014] The cabin body is provided with a smoke exhaust port, and an exhaust fan is located at the smoke exhaust port.

[0015] Furthermore, the temperature and flame sensor includes a temperature sensor and a flame sensor, and both the temperature sensor and the flame sensor are electrically connected to the cabin management server.

[0016] Furthermore, the rolling fire blanket comprises a reel rotatably mounted around the top of the cabin, and a fire curtain is wound around the reel;

[0017] The control mechanism of the rolling fire blanket includes four motors fixedly mounted on the side walls of the cabin, the motors are electrically connected to the cabin management server, and the output shafts of the motors are fixedly connected to one end of the reel.

[0018] Furthermore, a bottom magnetic attraction device is fixedly installed on the bottom of the cabin;

[0019] A tail magnetic attraction device is fixedly installed at the lower end of the fire curtain, and the bottom magnetic attraction device and the tail magnetic attraction device attract each other to fix the lower end of the fire curtain to the bottom of the cabin.

[0020] Furthermore, a plurality of energy storage cabinet guide rails for fixing the energy storage cabinet are evenly fixedly installed on the bottom of the cabin;

[0021] A slide groove matched with the guide rail of the energy storage cabinet is provided at the bottom of the energy storage cabinet.

[0022] Furthermore, the energy storage cabinet guide rail is a double-track guide rail.

[0023] Furthermore, a plurality of drainage channels are evenly arranged on the top of the cabin.

[0024] Furthermore, the cabin is fixedly mounted with a plurality of door frames, each door frame is hinged with a cabin door, and the number of the cabin doors is the same as the number of energy storage cabinets that can be stored inside the cabin.

[0025] Furthermore, the top fire blanket, the bottom fire blanket and the fire curtain are all made of high temperature resistant flame retardant materials.

[0026] Compared with the prior art, the present invention has the following technical effects:

[0027] Firstly, the present invention forms a relatively closed space by combining a rolling fire blanket, a top fire blanket and a bottom fire blanket, and wraps the energy storage cabinet after the fire in a relatively closed space, which can effectively isolate the energy storage cabinet from the external environment, thereby preventing the spread of fire and causing the surrounding cabinet storage compartments or other items to be ignited. At the same time, the fire sprinkler is used to spray and extinguish the fire, thereby improving the safety of the safe storage compartment during use; secondly, the energy conversion and bidirectional flow as well as the voltage level conversion between the energy storage cabinet and the power grid are controlled by the total energy storage converter and the total transformer, and the cabinet management system is used to monitor each energy storage cabinet status, preventing the battery from overcharging and over-discharging, which helps to extend the service life of the energy storage cabinet; secondly, the cabin management server uniformly controls the valves of the fire sprinklers, the total energy storage converter, the total transformer, the cabinet management system and the control mechanism of the roller-type fire blanket, thereby realizing large-scale intelligent monitoring, thermal management and safety management of multiple energy storage cabinets stored in the cabin, which is more convenient, improves the space utilization efficiency and reduces the maintenance cost; then, the operating status of each device obtained by the cabin management server is displayed on the display panel, which is convenient for the staff to pay attention to and perform self-detection and maintenance at any time.

[0028] The present invention can facilitate cooling of the interior of the cabin by arranging an exhaust fan, and at the same time, is conducive to exhausting gas and smoke inside the cabin.

[0029] The present invention utilizes the adsorption effect of the bottom magnetic device and the tail magnetic device to make the lower end of the fire curtain fit tightly with the inner bottom wall of the cabin, preventing the fire curtain from swinging caused by smoke, gas and flame, thereby better isolating the energy storage cabinet from the external environment and further reducing the spread of fire.

[0030] The present invention installs an energy storage cabinet guide rail on the bottom of the cabin, which makes it easy to push the energy storage cabinet from the cabin door into the cabin, saving time and effort. At the same time, the two adjacent energy storage cabinet guide rails fix the energy storage cabinet, preventing the energy storage cabinet from shaking left and right inside the cabin during transportation.

[0031] The present invention can prevent water accumulation on the top of the cabin on rainy days by opening a plurality of drainage channels on the top of the cabin, reduce the contact time between acidic substances in the rainwater and the cabin, prevent the acidic substances from corroding the cabin, and at the same time prevent the accumulated water from seeping into the cabin and causing various devices to get damp. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The structural diagram of the cabin of the invention is shown in FIG.

[0033] Figure 2 It is a schematic diagram of the structure of the cabin of the invention when it is in an open state;

[0034] Figure 3It is a schematic diagram of the overall structure of the invention;

[0035] Figure 4 It is a top view structural schematic diagram of the invention;

[0036] Figure 5 The structure diagram of the invented rolling fire blanket is shown in FIG.

[0037] Figure 6 This is a circuit schematic diagram of the invented cabin management server.

[0038] In the figure: 1-cabin; 2-energy storage cabinet; 3-exhaust fan; 4-roller fire blanket; 5-top fire blanket; 6-gas sensor; 7-smoke sensor; 8-temperature and flame sensor; 9-energy storage cabinet rail; 10-bottom fire blanket; 11-bottom magnetic device; 12-tail magnetic device; 13-cabin management server; 14-drainage chute; 15-cabin door; 16-total energy storage inverter; 17-total transformer; 18-cabin management system; 19-total monitoring system; 20-heat dissipation fire protection system; 21-display panel; 22-motor; 23-fire sprinkler. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown, a safe storage cabin for an energy storage cabinet includes a general monitoring system 19, a heat dissipation and fire fighting system 20 and a cabin body 1;

[0041] A plurality of energy storage cabinets 2 are stored inside the cabin 1, and a total energy storage converter 16, a total transformer 17 and a cabinet management system 18 respectively connected to each energy storage cabinet 2 are fixedly installed on the inner wall of the cabin 1;

[0042] The total energy storage converter 16 is used to regulate the energy conversion and bidirectional flow between each energy storage cabinet 2 and the power grid, convert the DC power of the energy storage cabinet 2 into AC power and output it to the power grid, or convert the AC power of the power grid into DC power and store it in the battery of the energy storage cabinet 2, thereby ensuring the efficient and stable operation of the energy storage system;

[0043] The main transformer 17 is used to regulate the output or input voltage of the battery pack in each energy storage cabinet 2, that is, when the direct current DC generated by the battery pack is converted into alternating current AC compatible with the power grid, or when the alternating current AC of the power grid is converted into direct current DC matching the battery pack, the voltage level conversion is performed through the main transformer 17;

[0044] The cabinet management system 18 is used to monitor the status of each energy storage cabinet 2, that is, by calculating the remaining capacity SOC and discharge power of each energy storage cabinet 2 and reporting the degradation degree SOH of the energy storage cabinet 2, so as to manage and maintain each energy storage cabinet 2, prevent overcharging and overdischarging of the battery, and thus extend the service life of the battery;

[0045] The overall monitoring system 19 includes a gas sensor 6, a smoke sensor 7 and a temperature and flame sensor 8 fixedly installed on the top of the cabin 1. The temperature and flame sensor 8 includes a temperature sensor and a flame sensor, wherein: the gas sensor 6 is used to detect the type and concentration change of the gas in the cabin 1; the smoke sensor 7 is used to detect the change of the smoke concentration in the cabin 1; the temperature sensor is used to detect the temperature change in the cabin 1; the flame sensor is used to detect whether there is a fire inside the cabin 1;

[0046] The heat dissipation fire protection system 20 includes a top fire blanket 5, a fire sprinkler 23 and a rolling fire blanket 4 fixedly installed on the top of the cabin 1, and a bottom fire blanket 10 fixedly installed on the bottom of the cabin 1, and also includes a plurality of exhaust fans 3 fixedly installed on the outer side wall of the cabin 1;

[0047] The top fire blanket 5 is closely attached to the top of the cabin 1 to play a flame retardant role, and the gas sensor 6, smoke sensor 7, temperature and flame sensor 8 and fire sprinkler 23 are all arranged on the top fire blanket 5, so as not to be blocked by the top fire blanket 5;

[0048] There are a plurality of fire sprinklers 23 for spraying fire extinguishing agent into the cabin 1, thereby achieving spraying fire extinguishing and preventing the fire from spreading;

[0049] The cabin body 1 is provided with a smoke exhaust port, and an exhaust fan 3 is located at the smoke exhaust port for dissipating heat inside the cabin body 1 and exhausting smoke outside the cabin body 1 .

[0050] Preferably, the cabin 1 is made of 45 steel, 35 steel, A 3 Steel, 40Cr alloy structural steel, HT 150 Gray cast iron, 65Mn steel, 0Cr 18 Ni 9 Steel, DCCr 12 MoV chrome steel, SKD11 chrome steel, D 2 Steel, SKD 11 (SLD) chrome steel, DC53 chrome steel, SKH-9 steel or ASP-23 steel.

[0051] like Figure 2 and Figure 5As shown, the roller-type fire blanket 4 has four rolls, which are respectively arranged around the top of the cabin body 1. The roller-type fire blanket 4 includes a reel rotatably installed around the top of the cabin body 1, and a fire curtain is wound on the reel; four motors 22 are installed on the side wall of the cabin body 1, and the output shaft of the motor 22 is fixedly connected to one end of the reel. When the motor 22 is working, the reel is driven to rotate, thereby lowering the fire curtain, so that the fire curtain is unfolded and surrounded by the energy storage cabinet 2, and cooperates with the top fire blanket 5 and the bottom fire blanket 10 to form a rectangular space, which wraps the energy storage cabinet 2 inside the rectangular space to prevent the fire from spreading to the outside of the cabin.

[0052] Preferably, the top fire blanket 5, the bottom fire blanket 10 and the fire curtain are all made of high temperature resistant flame retardant materials and do not burn under high temperature conditions.

[0053] Preferably, a bottom magnetic device 11 is fixedly installed at the bottom of the cabin 1, and a tail magnetic device 12 is fixedly installed at the lower end of the fire curtain. The bottom magnetic device 11 and the tail magnetic device 12 are adsorbed to each other, so that the lower end of the fire curtain is tightly fitted to the bottom of the cabin 1.

[0054] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a plurality of door frames are fixedly installed on the front side of the cabin 1, each door frame is hinged with a cabin door 15, the number of the cabin doors 15 is the same as the number of energy storage cabinets 2 that can be stored inside the cabin 1, and any one of the cabin doors 15 is installed with a display panel 21 and a cabin management server 13, the cabin management server 13 is electrically connected to the total monitoring system 19, the heat dissipation and fire protection system 20, the total energy storage converter 16, the total transformer 17 and the cabinet management system 18 and the display panel 21, respectively, the cabin management server 13 can receive and process the electrical signals transmitted by the total energy storage converter 16, the total transformer 17, the cabinet management system 18, the total monitoring system 19 and the heat dissipation and fire protection system 20, and adjust and control the operating status of each device, specifically:

[0055] The cabin management server 13 is electrically connected to the gas sensor 6, the smoke sensor 7, the temperature sensor, the flame sensor, the valve of the fire sprinkler 23, the motor 22, the exhaust fan 3, the total energy storage converter 16, the total transformer 17, the electric cabinet management system 18 and the display panel 21 respectively. The operation data of each device is displayed through the display panel 21, so as to timely understand the status of the energy storage cabinet 2 and realize rapid self-checking. The cabin management server 13 determines whether the gas inside the cabin 1 is a combustible gas, whether the temperature inside the cabin 1 is abnormal, or whether there is smoke and flame inside the cabin 1 according to the signals transmitted by the gas sensor 6, the smoke sensor 7, the temperature sensor and the flame sensor;

[0056] When only the temperature or smoke inside the cabin 1 is abnormal, the cabin management server 13 turns on the exhaust fan 3 to dissipate heat and exhaust smoke;

[0057] When a fire breaks out inside the cabin 1 or there is a high concentration of one or more flammable gases, the cabin management server 13 quickly cuts off the circuits of the total energy storage converter 16, the total transformer 17 and the cabinet management system 18 to disconnect them from the power grid, and starts the valve and motor 22 of the fire sprinkler 23. The fire curtain is quickly released, and its tail magnetic suction device 12 is attracted to the bottom magnetic suction device at the bottom of the cabin 1, and cooperates with the bottom fire blanket 10 and the top fire blanket 5 to isolate the surroundings of the energy storage cabinet 2 from the outside of the cabin 1. At the same time, the fire sprinkler 23 is used to spray and extinguish the fire, thereby reducing the losses caused by the battery fire of the energy storage cabinet 2. After the fire is extinguished, the exhaust fan 3 continues to dissipate heat and exhaust smoke.

[0058] The energy storage cabinet safety storage compartment of this embodiment not only has a self-extinguishing function, but also facilitates centralized management of the energy storage cabinet 2. Compared with the single-cabinet distributed grid-connected system adopted in the prior art, it greatly improves space utilization, reduces energy storage costs, and improves the safety and economy of energy storage equipment.

[0059] like Figure 1 to Figure 3 As shown, a plurality of energy storage cabinet rails 9 for fixing the energy storage cabinet 2 are evenly fixedly installed at the bottom of the cabin 1. The energy storage cabinet rails 9 are double-track rails. The positions of the energy storage cabinet rails 9 correspond to the positions of the hatch 15. After the hatch 15 is opened, the energy storage cabinet 2 is pushed into the cabin 1. At the same time, the bottom of the energy storage cabinet 2 is clamped between two adjacent energy storage cabinet rails 9, which fixes the energy storage cabinet 2 and prevents the energy storage cabinet from shaking left and right inside the cabin and tipping over during transportation.

[0060] like Figure 1 and Figure 3 As shown, a plurality of drainage channels 14 are evenly provided on the top of the cabin 1 for draining the accumulated water on the top of the cabin 1 to prevent the acidic substances in the rainwater from contacting the cabin 1 for a long time and corroding the cabin 1, and at the same time, to prevent the accumulated water from penetrating into the cabin 1 and causing various devices to get damp.

Claims

1. A safe storage compartment for an energy storage cabinet, characterized in that: It comprises a general monitoring system (19), a heat dissipation and fire fighting system (20) and a cabin (1); The cabin (1) stores a plurality of energy storage cabinets (2), and is fixedly installed with a total energy storage converter (16), a total transformer (17) and a cabinet management system (18) respectively connected to each energy storage cabinet (2); The overall monitoring system (19) comprises a gas sensor (6), a smoke sensor (7) and a temperature and flame sensor (8) fixedly mounted on the top of the cabin (1); The heat dissipation fire protection system (20) comprises a top fire blanket (5) fixedly mounted on the top of the cabin (1), a fire sprinkler (23) and a rolling fire blanket (4), and a bottom fire blanket (10) fixedly mounted on the bottom of the cabin (1); after the rolling fire blanket (4) is unfolded, it surrounds the energy storage cabinet (2); The cabin (1) is provided with a cabin door (15) at the front side, the cabin door (15) is provided with a display panel (21) and a cabin management server (13), and the cabin management server (13) is electrically connected to the valve of the fire sprinkler (23), the main monitoring system (19), the main energy storage converter (16), the main transformer (17), the electric cabinet management system (18), the control mechanism of the rolling fire blanket (4), and the display panel (21) respectively; The overall monitoring system (19) transmits the detected signal to the cabin management server (13), and the cabin management server (13) controls the operating status of the rolling fire blanket (4), the fire sprinkler (23), the overall energy storage converter (16), the overall transformer (17) and the electric cabinet management system (18) according to the received signal, and displays the operating data through the display panel (21).

2. The energy storage cabinet safety storage compartment according to claim 1 is characterized in that: The heat dissipation fire fighting system (20) further comprises a plurality of exhaust fans (3) fixedly mounted on the outer side wall of the cabin (1), and the exhaust fans (3) are electrically connected to the cabin management server (13); The cabin body (1) is provided with a smoke exhaust port, and the exhaust fan (3) is located at the smoke exhaust port.

3. The energy storage cabinet safety storage compartment according to claim 1 or 2, characterized in that: The temperature and flame sensor (8) comprises a temperature sensor and a flame sensor, and both the temperature sensor and the flame sensor are electrically connected to the cabin management server (13).

4. The energy storage cabinet safety storage compartment according to claim 1 or 2, characterized in that: The rolling fire blanket (4) comprises a reel rotatably mounted around the top of the cabin (1), and a fire curtain is wound around the reel; The control mechanism of the rolling fire blanket (4) comprises four motors (22) fixedly mounted on the side wall of the cabin (1), the motors (22) being electrically connected to the cabin management server (13), and the output shaft of the motor (22) being fixedly connected to one end of the reel.

5. The energy storage cabinet safety storage compartment according to claim 4 is characterized in that: A bottom magnetic attraction device (11) is fixedly installed on the bottom of the cabin (1); A rear magnetic attraction device (12) is fixedly installed at the lower end of the fire curtain, and the bottom magnetic attraction device (11) and the rear magnetic attraction device (12) attract each other, thereby fixing the lower end of the fire curtain to the bottom of the cabin (1).

6. The energy storage cabinet safety storage compartment according to claim 1 or 2, characterized in that: A plurality of energy storage cabinet guide rails (9) for fixing the energy storage cabinet (2) are evenly fixedly installed on the bottom of the cabin (1).

7. The energy storage cabinet safety storage compartment according to claim 6 is characterized in that: The energy storage cabinet guide rail (9) is a double-track guide rail.

8. The energy storage cabinet safety storage compartment according to claim 1 or 2, characterized in that: A plurality of drainage channels (14) are evenly arranged on the top of the cabin (1).

9. The energy storage cabinet safety storage compartment according to claim 1 or 2, characterized in that: The cabin (1) is fixedly mounted with a plurality of door frames, each door frame is hingedly connected with a cabin door (15), and the number of the cabin doors (15) is the same as the number of energy storage cabinets (2) that can be stored inside the cabin (1).

10. The energy storage cabinet safety storage compartment according to claim 4, characterized in that: The top fire blanket (5), the bottom fire blanket (10) and the fire curtain are all made of high temperature resistant flame retardant materials.

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