Distributed battery energy storage cabinet fire-fighting system
Technical Field
The utility model relates to a fire control field especially relates to a distributing type battery energy storage cabinet fire extinguishing systems.
Background
In the presence of the rapidly increased market demand and complex application scenes, the global energy storage safety accidents frequently occur, and the global energy storage safety accidents comprise projects participated by some known energy storage suppliers. With the rapid growth of the energy storage industry, more and more enterprises are added, but some players with different technical levels also bring unstable factors to the industry: the system integration design of part of manufacturers is only to simply stack devices such as lithium batteries, energy storage PCS and the like purchased from different brands into a container; the system is not comprehensively and effectively tested and jointly debugged before delivery, and the protection execution is not in place, so that the whole energy storage system product finally delivered to a customer has great performance and potential safety hazards. The design of the fire protection system is only a small part of the safety protection measures of the energy storage system, and the integration capability, the later operation and maintenance and the risk monitoring and management level of the energy storage system are more critical. The existing fire fighting system lacks a sufficient effective and reliable detection system; depending on the smoke sensor, the sensor arrangement is unreasonable and the accuracy is low. Many fire extinguishing materials that trigger formula box of putting out a fire used do not suit the battery class use scene, may aggravate the conflagration on the contrary, also can destroy interior subassembly even after putting out a fire. Fire control does not become the system, and the redundancy is low.
For example, a "cabinet fire control integrated device that puts out a fire that discloses on chinese patent literature, its bulletin number CN212067521U, including the integration fire control rack, the both sides of the inside cabinet body of integration fire control rack are all fixed and are provided with two sets of backup pad subassemblies, the cover is equipped with height adjusting part on the backup pad subassembly, two correspond fixed components and parts mounting panel that is provided with between the height adjusting part, the lower terminal surface rubberizing of components and parts mounting panel has visited a tub fixed subassembly, and height adjusting part sliding connection on the backup pad subassembly, and the both ends lamellar body block of location shell fragment is fixed in the positioning channel groove on the backup pad subassembly, through this kind of mode, conveniently adjusts the height when components and parts mounting panel uses, and the body of fire visit pipe is hung in the inside of integration fire control rack through multiunit visit pipe fixed subassembly, and visit the bottom of pipe fixed subassembly to be fixed on components and parts mounting panel and integration fire control rack through powerful adhesive layer, and visit fixed block and the movable ball head clearance fit connection on the fixed subassembly. However, when the integrated fire-fighting cabinet is used, redundant space needs to be vacated inside to place fire-fighting equipment, and a fire-fighting gas cylinder needs to be arranged on a single cabinet, so that the overall redundancy is low, and the arrangement is unreasonable and high in cost.
Disclosure of Invention
The utility model aims at the problems of low redundancy and unreasonable arrangement of the fire-fighting device of the existing-order energy storage cabinet; a distributed battery energy storage cabinet fire-fighting system is provided; detecting fire hazard in the cabinets through a fire protection system trigger/detection device arranged on each cabinet, and transmitting the fire hazard to a rear system for judgment; and the surface of each cabinet is provided with a puncture valve, a spray head is arranged between every two puncture valves which are arranged side by side, when the fire hazard of a certain cabinet is detected, the puncture valves are controlled to be punctured, and the spray head is opened to carry out fire extinguishing operation on the cabinet where the puncture valves are located. Set up sensor circuit on this unit cabinet, puncture the valve and reduced the redundant space that single rack need be left, the integrated level is high, and punctures the valve and set up the shower nozzle nearby the position, directly carries out direct injection through the direct fixed point of external fire control gas cylinder to the rack inside that produces the conflagration hidden danger and puts out a fire, and the foam is to the influence of whole rack group when can reducing to put out a fire, and the source of a fire that can be timely accurate disappears. The device is redundant little, and the integrated level is high, and the cost is lower, can directly fix a point and put out a fire the operation and do not need the space of the storage fire extinguishing apparatus that inside rack was additionally reserved to every rack.
The above technical problem of the utility model is mainly solved through the following technical scheme:
a distributed battery energy storage cabinet fire-fighting system comprises a plurality of cabinets, and a fire-fighting system trigger/detection device is arranged on each cabinet; the fire fighting system triggering/detecting device is connected with the fire fighting control module; a puncture valve is arranged on the surface of the cabinet; a spray head is arranged between the puncture valves of the two adjacent parallel cabinets; the fire-fighting gas cylinder, the spray head and the puncture valve are connected in sequence. Detecting fire hazard in the cabinets through a fire protection system trigger/detection device arranged on each cabinet, and transmitting the fire hazard to a rear system for judgment; and the surface of each cabinet is provided with a puncture valve, a spray head is arranged between every two puncture valves which are arranged side by side, when the fire hazard of a certain cabinet is detected, the puncture valves are controlled to be punctured, and the spray head is opened to carry out fire extinguishing operation on the cabinet where the puncture valves are located. Set up sensor circuit on this unit cabinet, puncture the valve and reduced the redundant space that single rack need be left, the integrated level is high, and punctures the valve and set up the shower nozzle nearby the position, directly carries out direct injection through the direct fixed point of external fire control gas cylinder to the rack inside that produces the conflagration hidden danger and puts out a fire, and the foam is to the influence of whole rack group when can reducing to put out a fire, and the source of a fire that can be timely accurate disappears.
Preferably, the fire-fighting gas cylinder, the spray head and the puncture valve are connected by pipelines; the pipeline is a flame-retardant air pipe. The three are connected through the pipeline, the flame-retardant air pipe can effectively prevent the fire from damaging the pipeline, and the fire extinguishing device can effectively and directly extinguish fire from the puncture valve to the inside of the cabinet when the fire breaks out. The fire extinguishing materials such as heptafluoropropane and perfluorohexanone can be used compatibly, so that the fire can be effectively extinguished without damaging equipment.
Preferably, the fire-fighting gas cylinder is arranged outside the cabinet; the pipeline is connected with each spray head in sequence from the top of the cabinet downwards. The fire-fighting gas cylinder is arranged on the outer side of the cabinet, and the pressure intensity during spraying can be increased through downward connection from the top, so that the fire-fighting effect is guaranteed.
Preferably, the fire fighting system triggering/detecting device comprises a particle concentration detecting circuit and a temperature detecting circuit which are respectively connected with the fire fighting control module; the particle concentration detection circuit transmits an alarm signal to the fire control module by comparing the particle concentration with the particle concentration limit value; the temperature detection circuit transmits an alarm signal to the fire control module by comparing the temperature with the temperature limit value. The temperature detection circuit and the particle concentration detection circuit can mutually verify the occurrence of internal fire, and fire misjudgment is avoided.
Preferably, the fire-fighting system triggering/detecting device is connected with the fire-fighting control module through a lead; the fire-fighting system triggering/detecting devices of all the cabinets are connected in parallel. The fire extinguishing devices on the single cabinet can be controlled by the fire control module, and the fire extinguishing devices are connected in parallel to ensure that the fire in one cabinet does not affect the normal detection and judgment of other cabinets.
Preferably, the fire fighting system supplies power through the fire fighting control module; the fire control module is connected with the main control system through a wireless network. And directly transmitting the fault information to a background through a wireless network to perform fire early warning and fault early warning.
The utility model has the advantages that:
1. a high-precision smoke and gas composite detector is adopted to effectively detect smoke particles emitted by a fire;
2. the distributed hair spray design can be arranged as required; the sensor circuit and the puncture valve are arranged on the single cabinet, so that redundant space required to be reserved for the single cabinet is reduced, and the integration level is high;
3. the fire extinguishing materials such as heptafluoropropane and perfluorohexanone can be compatible for use, so that the fire can be effectively extinguished without damaging equipment;
4. early warning and fixed point eruption are carried out through highly integrated system, reduce the influence of foam to whole rack group when putting out a fire, and can in time be accurate eliminate the ignition source, can in time feed back higher level management system with fault information simultaneously.
Drawings
FIG. 1 is a view of the structure of a cabinet;
in the figure: 1-a puncture valve; 2-a spray head; 3-fire fighting gas cylinder.
Detailed Description
It should be understood that the examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
A distributed fire-fighting system for a battery energy storage cabinet comprises a plurality of cabinets which are orderly arranged from top to bottom and from left to right. The surface of the cabinet is provided with a fire-fighting system triggering/detecting device; the composite detection effect of the sensor is more accurate. The fire-fighting system triggering/detecting devices of all the cabinets are connected in parallel; the fire extinguishing devices on the single cabinet can be controlled by the fire control module, and the fire extinguishing devices are connected in parallel, so that the fire in one cabinet can be guaranteed, and the normal detection and judgment of other cabinets can not be influenced. The fire-fighting system triggering/detecting device comprises a particle concentration detecting circuit and a temperature detecting circuit which are respectively connected with the fire-fighting control module; whether fire hazard exists in the cabinet can be judged by comparing the temperature with the particle concentration and the limiting value, a fire signal can be directly transmitted to the fire control module through connection between the fire control system triggering/detecting devices, and the fire signal is transmitted to the background main control system through a wireless network. A high-precision smoke and gas composite detector is adopted to effectively detect smoke particles emitted by fire.
The whole fire fighting system is powered by the fire fighting control module.
A puncture valve 1 is arranged on the surface of each cabinet; when the puncture valve 1 is not punctured, the interior of the machine cabinet is kept in a normal closed state, a spray head 2 is arranged between the puncture valves 1 of two adjacent machine cabinets side by side, the spray head 2 is connected with a fire-fighting gas bottle 3 arranged on the outer side of the machine cabinet, and fire-fighting gas can be directly provided through the fire-fighting gas bottle 3. The distributed hair spray design can be arranged according to requirements. Meanwhile, the distributed type eruption design can be flexibly arranged. And the spray head 2 is connected with the fire control module and is controlled by the fire control module. The fire-fighting gas cylinder 3, the spray head 2 and the puncture valve 1 are connected in sequence. The fire-fighting gas cylinder 3, the nozzle 2 and the puncture valve 1 are connected by adopting a flame-retardant gas pipe; the pipelines are connected with the spray heads 2 from the top of the cabinet downwards in sequence. The fire-retardant trachea can effectively prevent the damage of conflagration to pipeline itself, guarantees that when the conflagration takes place, extinguishing device can be effective and direct put out a fire to the inside of rack from puncture valve 1. The fire extinguishing materials such as heptafluoropropane and perfluorohexanone can be used compatibly, so that the fire can be effectively extinguished without damaging equipment. The heptafluoropropane and the perfluorohexanone and other fire extinguishing materials can be compatible for use, so that the fire can be effectively extinguished without damaging equipment. The fire extinguishing material is more suitable for battery application scenes.
Early warning and fixed point eruption are carried out through highly integrated system, reduce the influence of foam to whole rack group when putting out a fire, and can in time be accurate eliminate the ignition source, can in time feed back higher level management system with fault information simultaneously.
When the device works, the spray head 2 and the sensor are arranged according to the requirements of the cabinet; the nozzle 2 is connected with the fire-fighting gas cylinder 3 by a flame-retardant gas pipe; when the concentration or the temperature of the combustion particles is detected to reach an alarm limit value, alarming is carried out, information is transmitted to a system to be controlled, the system is required to stop working, and overhauling is carried out; when the concentration or the temperature of the burning particles is detected to reach a eruption value, the position of the fire extinguishing device is detected to perform fire extinguishing gas eruption operation and continuously give an alarm.
When fire is needed to be extinguished, the puncture valve 1 is opened, and the adjacent spray heads 2 spray extinguishing materials to the position of the puncture valve 1 through pipelines so as to extinguish fire at fixed points. And this action can not influence the normal use of other cabinets, and can directly put out a fire to inside fire hidden danger point through outside gas cylinder, and fire control effect is better than the outside fire control cabinet of putting out a fire, and compares traditional single cabinet inside and sets up the redundant fire extinguishing position, and this fire extinguishing system has reduced the inside redundant setting of cabinet, has increased the integrated level of cabinet.