Fire extinguishing system of energy storage cabinet

Abstract

The invention discloses an energy storage cabinet fire-fighting system, and relates to the technical field of fire fighting, the energy storage cabinet fire-fighting system comprises a detection assembly and a fire extinguishing assembly, the detection assembly comprises a composite detector, a fire-fighting host, an alarm mechanism, a main pipe and a plurality of branch pipes, the composite detector is connected with the fire-fighting host, the fire-fighting host is connected with the alarm mechanism, and the air inlet end of the main pipe is connected with the branch pipes; the air outlet end of the main pipe is close to the composite detector, and the plurality of branch pipes are used for being inserted into a plurality of PACK battery packs in an energy storage cabinet respectively. The fire extinguisher is connected with the fire-fighting host and is connected into the main pipe in parallel; the fire extinguisher can output a PACK battery pack to the energy storage cabinet when receiving a control instruction of the fire-fighting host. When any PACK battery pack is in fire, gas in the energy storage cabinet can flow into the composite detector through the main pipe, so that the composite detector generates a detection signal and transmits the detection signal to the fire-fighting host, the alarm mechanism is controlled to spray an alarm to prompt firefighters to take emergency measures, and the cost is greatly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection, and in particular to an energy storage cabinet fire protection system. Background Art

[0002] In recent years, my country's energy storage technology has developed rapidly, and more and more outdoor energy storage cabinets have been applied to the market. For example, outdoor energy storage cabinets can store multiple PACK battery packs to power electrical products outdoors. Sometimes the PACK battery pack will cause a battery short circuit due to overheating, overcharging and discharging, battery design defects, and raw material defects, resulting in chemical reactions between battery materials inside the PACK battery pack, electrolyte decomposition, and a large amount of heat and gas, which will cause the energy storage cabinet to burn or explode. Therefore, it is necessary to provide a fire protection system for monitoring the energy storage cabinet so that timely measures can be taken when the energy storage cabinet is abnormal.

[0003] However, existing outdoor energy storage cabinets still have shortcomings. For example, each of the multiple PACK battery packs stored in the outdoor energy storage cabinet needs to be equipped with a detector and a puncture valve. After the detector in the outdoor energy storage cabinet detects a fire, it opens the corresponding puncture valve to deliver the fire extinguishing agent to the corresponding PACK battery pack. Although this method can accurately suppress fires, it is too costly and inconvenient to manage. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and propose an energy storage cabinet fire protection system to solve the problem that multiple PACK battery packs stored in an outdoor energy storage cabinet in the prior art need to be equipped with a detector and a puncture valve separately. After the detector in the outdoor energy storage cabinet detects a fire, it opens the corresponding puncture valve to deliver the fire extinguishing agent to the corresponding outdoor energy storage cabinet. Although this method can accurately suppress fires, it has the technical problems of being too costly and inconvenient to manage.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions: The present invention provides an energy storage cabinet fire protection system, comprising: The detection component includes a composite detector, a fire host, an alarm mechanism, a main pipe and a plurality of branch pipes, wherein the composite detector is connected to the fire host, the fire host is connected to the alarm mechanism, one end of the main pipe is connected to the other end of the composite detector, the air inlet end of the main pipe is connected to a plurality of branch pipes, the air outlet end of the main pipe is close to the composite detector, and the plurality of branch pipes are used to insert a plurality of PACK battery packs respectively; and The fire extinguishing assembly comprises a fire extinguisher, wherein the fire extinguisher is connected to the fire fighting host and the main pipe; the fire extinguisher can spray a fire extinguishing agent into the main pipe upon receiving a control instruction from the fire fighting host.

[0006] In some embodiments, the detection assembly further includes an air suction pump, which is disposed on the main pipe and is used to draw gas from the plurality of PACK battery packs into the composite detector.

[0007] In some embodiments, the detection component further includes a pump failure sensor, which is connected to the air suction pump and the fire host. The pump failure sensor can send a failure signal to the fire host when the air suction pump fails.

[0008] In some embodiments, the alarm mechanism includes an audible and visual alarm, which is connected to the fire host and can emit a buzzing sound and flash a red light when a fire occurs in the PACK battery pack.

[0009] In some embodiments, the alarm mechanism further includes an emergency start button, which is connected to the fire host and can control the fire extinguisher to spray the fire extinguishing agent through the fire host.

[0010] In some embodiments, the composite detector has multiple detection modules, each detection module can spray a corresponding sensing signal according to the gas type and gas concentration detected by the composite detector to drive the fire host to control the sound and light alarm and / or the fire extinguisher.

[0011] In some embodiments, the fire extinguishing assembly also includes a first three-way valve and a secondary pipe. The number of fire extinguishers is two. Both of the two fire extinguishers are connected to the fire main unit and are connected to the secondary pipe through the first three-way valve. The secondary pipe is connected to the main pipe in parallel. The first three-way valve has two one-way valves, and the two one-way valves are respectively used to connect the main pipe and the corresponding fire extinguisher.

[0012] In some embodiments, the detection assembly also includes a second three-way valve, which connects the main pipe, the secondary pipe and the multiple branch pipes. The second three-way valve can drive the main pipe to connect to the multiple branch pipes when the fire extinguisher is not working, and can only connect to the secondary pipe and the multiple branch pipes when the fire extinguisher is working.

[0013] In some embodiments, a steel ball is provided in the second three-way valve, and the steel ball can block the secondary pipe by its own gravity when the fire extinguisher is not working. When the fire extinguisher is working, the fire extinguishing agent can drive the steel ball to rise to block the main pipe and drive the secondary pipe and the multiple branch pipes to communicate.

[0014] In some embodiments, the fire extinguishing assembly also includes a nozzle and a spray feedback device, the nozzle is arranged at the outlet end of the branch pipe, and the spray feedback device is arranged at the auxiliary pipe and connected to the fire fighting host. When the fire extinguishing agent flows through the auxiliary pipe, the spray feedback device can send a feedback signal to the fire fighting host.

[0015] Compared with the prior art, the energy storage cabinet fire protection system provided by the present invention has multiple branch pipes that can be inserted into multiple PACK battery packs respectively. When a fire occurs in any PACK battery pack, the gas in the PACK battery pack can pass through the outlet end of the main pipe close to the composite detector, so that the composite detector generates a detection signal and transmits it to the fire host. The fire host controls the alarm mechanism to spray an alarm according to the detection signal to prompt the firefighters to take emergency measures. At the same time, the fire host can also control the fire extinguisher to output fire extinguishing agent to the PACK battery pack to extinguish the fire. The present application does not need to set detectors and puncture valves in each PACK battery pack, which greatly saves costs, and multiple PACK battery packs are connected to the same composite detector, which can achieve unified monitoring and control, and is easy to manage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a structural schematic diagram of an energy storage cabinet fire protection system provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the working principle of the energy storage cabinet fire protection system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0018] In order to solve the technical problem in the prior art that each PACK battery pack in an outdoor energy storage cabinet needs to be individually equipped with a detector and a puncture valve, which is too costly and inconvenient to manage, the present invention provides an energy storage cabinet fire protection system, which can connect multiple PACK battery packs to the same detector, saving costs, and can uniformly monitor multiple PACK battery packs for easy management.

[0019] It should be noted that the energy storage cabinet fire protection system described in the present invention is used for but not limited to energy storage cabinets, etc. For the convenience of explanation, in the present invention, only the application of the energy storage cabinet fire protection system to the energy storage cabinet is used as an example for explanation, and the principle of the application of the energy storage cabinet fire protection system to other types of equipment is substantially the same as the principle applied to the energy storage cabinet, which will not be described one by one here.

[0020] See also Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of an energy storage cabinet fire protection system in an embodiment of the present invention. The energy storage cabinet fire protection system includes a detection component and a fire extinguishing component. The detection component includes a composite detector 1, a fire host 2, an alarm mechanism 3, a main pipe 4 and multiple branch pipes 5. One end of the composite detector 1 is connected to the fire host 2, the fire host 2 is connected to the alarm mechanism 3, the air inlet end of the main pipe 4 is connected to multiple branch pipes 5, the air outlet end of the main pipe 4 is close to the composite detector 1, and the multiple branch pipes 5 are used to insert multiple PACK battery packs 6 respectively.

[0021] The fire extinguishing assembly includes a fire extinguisher 7, which is connected to the fire host 2 and connected in parallel to the main pipe 4; the fire extinguisher 7 can spray the fire extinguishing agent upon receiving the control command of the fire host 2 and enter the PACK battery pack 6 through the main pipe 4 and multiple branch pipes 5 in sequence.

[0022] In this embodiment, the energy storage cabinet fire protection system can be installed inside the cabinet of the energy storage cabinet, and the cabinet can be fixedly installed at a designated location outdoors for use by people who need electricity outdoors. The composite detector 1 has the function of detecting the gas in contact with it, such as detecting the type and concentration of the gas. When a fire occurs in a PACK battery pack, hydrogen, CO, smoke, VOC and other substances are usually produced. When these substances come into contact with the composite detector 1, the composite detector 1 can also detect their concentration.

[0023] The fire host 2 can be understood as a control center, which is used to respond to the alarm mechanism 3 according to the gas concentration detected by the composite detector 1, so as to prompt the firefighters to take emergency measures in time. The multiple branch pipes 5 of this embodiment are all connected to the main pipe 4. The gas in any branch pipe 5 can be sensed by the composite detector 1 through the main pipe 4. When a fire occurs in any PACK battery pack 6, the smoke or gas generated can contact the composite detector 1 through the main pipe 4, so that the composite detector 1 can sense the concentration of smoke or gas. There is no need to set a composite detector 1 in each PACK battery pack 6, which saves costs and is easy to manage.

[0024] In one embodiment, see Figure 2 The detection assembly also includes an air suction pump 8, which is arranged on the main pipe 4 and is used to suck the gas in the multiple PACK battery packs 6 close to the composite detector 1. In this embodiment, the air suction pump 8 can be provided to drive the gas or smoke in the PACK battery pack 6 to quickly reach the composite detector 1, so as to speed up the response speed of the composite detector 1, reduce the reaction time, and buy more time for rescue. When any PACK battery pack 6 catches fire, the smoke or gas generated by the PACK battery pack 6 can be sucked by the air suction pump 8 and driven to the composite detector 1.

[0025] For further information, see Figure 1The detection component also includes a pump fault sensor 9, which is connected to the air pump 8 and the fire host 2. The pump fault sensor 9 can send a fault signal to the fire host 2 when the air pump 8 fails. In this embodiment, the pump fault sensor 9 is set to detect whether the air pump 8 has a fault, so that the fault signal can be transmitted to the fire host 2 in time and the rescue personnel will be informed. When the pump fault sensor 9 detects that the air pump 8 has a fault, the smoke and gas generated by the fire in the PACK battery pack 6 are transmitted to the composite detector 1 at a slower speed, and the gas and smoke concentrations monitored by the composite detector 1 will also be lower, so that the rescue personnel can know it and avoid misjudgment by the rescue personnel.

[0026] In one embodiment, see Figure 1 The alarm mechanism 3 includes an audible and visual alarm 31, which is connected to the fire host 2 and can emit a buzzing sound and flash a red light when a fire occurs in the PACK battery pack 6. In this embodiment, the audible and visual alarm 31 is provided to make an obvious response to a fire in the PACK battery pack 6, so as to clearly prompt the rescue personnel.

[0027] In one embodiment, see Figure 1 The alarm mechanism 3 also includes an emergency start button 32, which is connected to the fire host 2 and can control the fire extinguisher 7 to spray the fire extinguishing agent through the fire host 2. In this embodiment, the firefighter can manually press the emergency start button 32 to control the fire extinguisher 32 to spray the fire extinguishing agent to extinguish the fire of the PACK battery pack 6 through the fire host 2. By adding the emergency start button 32, this embodiment can realize the active control of the fire extinguisher 7 to spray the fire extinguishing agent, which provides an additional option to improve the fire extinguishing protection of the PACK battery pack 6.

[0028] In one embodiment, see Figure 1 The composite detector 1 has multiple detection modules, each of which can spray corresponding sensing signals according to the type of gas and gas concentration detected by the composite detector 1, so as to drive the fire host to control the sound and light alarm and / or fire extinguisher to work. In this embodiment, the multiple detection modules of the composite detector 1 can detect gas and smoke. When each detection module detects the corresponding type of gas or the concentration of the target gas reaches its preset value, the detection module will generate a sensing signal and control the corresponding alarm mechanism 3 or fire extinguisher 7 to perform corresponding actions. Therefore, the composite detector 1 of this embodiment can respond to the fire situation in a graded manner according to the different types of gas / smoke and gas / smoke concentrations sensed by different detection modules, so as to save fire resources as much as possible.

[0029] In a preferred embodiment, the composite detector 1 comprises a first detection module, a second detection module and a third detection module, and the three detection modules are all capable of simultaneously detecting the gas and smoke transmitted from the main pipe 4 .

[0030] When the gas is carbon monoxide and the concentration of carbon monoxide reaches a preset value, or the smoke concentration reaches a preset value, the first detection module generates a sensing signal, and the fire host only controls the sound and light alarm 31 to sound an alarm to alert the firefighters.

[0031] When the gas is carbon monoxide, hydrogen or VOC and the concentration of any one of the gases reaches a preset value, the second detection module generates a sensing signal, and the fire host controls the sound and light alarm 31 to sound an alarm and flash a red light to alert the firefighters. In addition, the composite detector 1 also has a temperature sensor. When the temperature sensed by the temperature sensor rises by at least 20°C per minute, or the second detection module senses that the concentration of carbon monoxide increases at a rate greater than 100ppm / min, the second detection module generates a sensing signal, and the fire host controls the sound and light alarm 31 to sound an alarm and flash a red light.

[0032] When the type and concentration of the gas or smoke sensed by the third detection module appear as follows, the third detection module generates a sensing signal, and controls the sound and light alarm 31 to sound an alarm and flash a red light through the fire host 2, and controls the fire extinguisher 7 to spray the fire extinguishing agent into the PACK battery pack 6; (1) The temperature reaches the alarm threshold; (2) VOC reaches the alarm threshold and CO reaches the alarm threshold and a rapid temperature rise is detected; (3) VOC reaches the alarm threshold and hydrogen reaches the alarm threshold and a rapid temperature rise is detected; (4) VOC reaches the alarm threshold and smoke reaches the alarm threshold and rapid temperature rise is detected; (5) CO reaches the alarm threshold and smoke reaches the alarm threshold and rapid temperature rise is detected; (6) Hydrogen reaches the alarm threshold and smoke reaches the alarm threshold and a rapid temperature rise is detected.

[0033] Figure 2 Path A in the figure represents the signal of low-level alarm execution, and path B represents the signal of high-level alarm execution.

[0034] In one embodiment, see Figure 1, the fire extinguishing assembly also includes a first three-way valve 10 and a secondary pipe 11, the number of fire extinguishers 7 is two, the two fire extinguishers 7 are connected to the fire host 2, and are connected to the secondary pipe 11 through the first three-way valve 10, the secondary pipe 11 is connected to the main pipe 4 in parallel, and the first three-way valve 10 has two one-way valves, and the two one-way valves are used to connect the main pipe 4 and the corresponding fire extinguisher 7. In this embodiment, the fire host 2 can control one or two fire extinguishers 7 to extinguish the fire according to the severity of the fire. For example, when the third detection module only detects hydrogen, carbon monoxide and temperature reaching the alarm threshold, only one of the fire extinguishers 7 is controlled to spray the fire extinguishing agent into the PACK battery pack 6 to extinguish the fire. When the gas and smoke detected by the third detection module meet the above six conditions, the fire host 2 controls the two fire extinguishers 7 to spray the fire extinguishing agent at the same time to extinguish the PACK battery pack 6. In this embodiment, by setting a plurality of fire extinguishers 7, one or more fire extinguishers 7 can be automatically controlled to extinguish the fire according to the actual severity of the fire, which further saves firefighting resources and can effectively control the fire.

[0035] In one embodiment, see Figure 1 The detection assembly further includes a second three-way valve 12, which connects the main pipe 4, the auxiliary pipe 11 and the plurality of branch pipes 5. The second three-way valve 12 can drive the main pipe 4 to connect the plurality of branch pipes 5 when the fire extinguisher 7 is not working, and can only connect the auxiliary pipe 11 and the plurality of branch pipes 5 when the fire extinguisher 7 is working. In this embodiment, the second three-way valve 12 is provided to prevent the gas of the PACK battery pack 6 from flowing into the auxiliary pipe 11 when the fire extinguisher 7 is not used, resulting in gas loss, and the composite detector 1 cannot accurately judge the actual fire situation.

[0036] For further information, see Figure 1 The second three-way valve 12 is provided with a steel ball 13. The steel ball 13 can block the auxiliary pipe 11 by its own gravity when the fire extinguisher 7 is not working. When the fire extinguisher 7 is working, the steel ball 13 can be driven up by the fire extinguishing agent to block the main pipe 4 to prevent the fire extinguishing agent from entering the composite detector 1 through the main pipe 4. When the steel ball 13 rises, it can drive the auxiliary pipe 11 to communicate with multiple branch pipes 5, so that the fire extinguishing agent flows into the PACK battery pack 6 through the multiple branch pipes 5. In this embodiment, by arranging the steel ball 13 in the second three-way valve 12, the gas in the PACK battery pack 6 can be brought close to the composite detector 1, and at the same time, the fire extinguishing agent sprayed by the fire extinguisher 7 can also flow into the PACK battery pack 6 through the second three-way valve 12, without interfering with each other, and convenient to use.

[0037] In one embodiment, see Figure 1The fire extinguishing assembly also includes a nozzle 14 and a spray feedback device 15. The nozzle 14 is arranged at the outlet end of the branch pipe 5. The spray feedback device 14 is arranged on the auxiliary pipe 11 and connected to the fire host 2. When the fire extinguishing agent flows through the auxiliary pipe 11, the spray feedback device 14 can send a feedback signal to the fire host 2. In this embodiment, the spray feedback device 14 is used to monitor whether the fire extinguishing agent is sprayed into the fire extinguisher 7, so as to infer whether the PACK battery pack 6 has the fire extinguishing agent to extinguish the fire, so as to take further measures.

[0038] In order to better understand the present invention, the following Figure 1 to Figure 2 The technical solution of the present invention is described in detail: The energy storage cabinet fire protection system provided by the present invention has multiple branch pipes 5 that can be respectively inserted into multiple PACK battery packs 6. When a fire occurs in any PACK battery pack 6, the gas in the PACK battery pack 6 can pass through the main pipe 4 close to the composite detector 1, so that the composite detector 1 generates a detection signal and transmits it to the fire host 2. The fire host 2 controls the alarm mechanism 3 to spray an alarm according to the detection signal to prompt the firefighters to take emergency measures. At the same time, the fire host 2 can also control the fire extinguisher 7 to output fire extinguishing agent to the PACK battery pack 6 to extinguish the fire of the PACK battery pack 6. The present application sets a detector and a puncture valve in each PACK battery pack 6, which greatly saves costs, and multiple PACK battery packs 6 are connected to the same composite detector 1, which can achieve unified monitoring and control and convenient management.

[0039] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An energy storage cabinet fire protection system, characterized in that: include: The detection component includes a composite detector, a fire host, an alarm mechanism, a main pipe and a plurality of branch pipes, wherein the composite detector is connected to the fire host, the fire host is connected to the alarm mechanism, the air inlet end of the main pipe is connected to the plurality of branch pipes, the air outlet end of the main pipe is close to the composite detector, and the plurality of branch pipes are used to insert a plurality of PACK battery packs respectively; and The fire extinguishing assembly comprises a fire extinguisher, wherein the fire extinguisher is connected to the fire fighting host and the main pipe; the fire extinguisher can spray a fire extinguishing agent into the main pipe upon receiving a control instruction from the fire fighting host.

2. The energy storage cabinet fire protection system according to claim 1, characterized in that: The detection component also includes an air suction pump, which is arranged on the main pipe and is used to suck the gas in the multiple PACK battery packs into the composite detector.

3. The energy storage cabinet fire protection system according to claim 2, characterized in that: The detection component also includes a pump failure sensor, which is connected to the air suction pump and the fire host. The pump failure sensor can send a failure signal to the fire host when the air suction pump fails.

4. The energy storage cabinet fire protection system according to claim 1, characterized in that: The alarm mechanism includes an audible and visual alarm, which is connected to the fire host and can emit a buzzing sound and flash a red light when a fire occurs in the PACK battery pack.

5. The energy storage cabinet fire protection system according to claim 4, characterized in that: The alarm mechanism also includes an emergency start button, which is connected to the fire host and can control the fire extinguisher to spray fire extinguishing agent through the fire host.

6. The energy storage cabinet fire protection system according to claim 5, characterized in that: The composite detector has a plurality of detection modules, each of which can spray a corresponding sensing signal according to the gas type and gas concentration detected by the composite detector to drive the fire host to control the sound and light alarm and / or the fire extinguisher.

7. The energy storage cabinet fire protection system according to claim 1, characterized in that: The fire extinguishing assembly also includes a first three-way valve and a secondary pipe. There are two fire extinguishers. Both of the two fire extinguishers are connected to the fire main unit and are connected to the secondary pipe through the first three-way valve. The secondary pipe is connected to the main pipe in parallel. The first three-way valve has two one-way valves, and the two one-way valves are respectively used to connect the main pipe and the corresponding fire extinguisher.

8. The energy storage cabinet fire protection system according to claim 7, characterized in that: The detection component also includes a second three-way valve, which connects the main pipe, the secondary pipe and the multiple branch pipes. The second three-way valve can drive the main pipe to connect to the multiple branch pipes when the fire extinguisher is not working, and can only connect the secondary pipe and the multiple branch pipes when the fire extinguisher is working.

9. The energy storage cabinet fire protection system according to claim 8, characterized in that: A steel ball is provided in the second three-way valve, and the steel ball can block the secondary pipe by its own gravity when the fire extinguisher is not working. When the fire extinguisher is working, the fire extinguishing agent can drive the steel ball to rise to block the main pipe and drive the secondary pipe to communicate with the multiple branch pipes.

10. The energy storage cabinet fire protection system according to claim 1, characterized in that: The fire extinguishing assembly also includes a nozzle and a spray feedback device. The nozzle is arranged at the outlet end of the branch pipe, and the spray feedback device is arranged at the auxiliary pipe and connected to the fire main unit. When the fire extinguishing agent flows through the auxiliary pipe, the spray feedback device can send a feedback signal to the fire main unit.

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