Energy Storage Fire Nozzle
In view of the fire hazards and fire difficulties of the energystorage system, CYCO has launched a fire nozzle specifically for the energy storage industry on the basis of full research experiments and fire protection standards.
Parameter:
Product Name
Energy Storage Fire Fighting Nozzle
Spray angle
35° - 80°
Working Temperature
10-100bar
Workingtemperature
Different materials correspond todifferent temperatures
Material
stainless steel
Introduction to energy storage fire protection:
Energy storage fire protection to “prevention first, prevention and elimination combination” as the principle, energy storage safety mainly has two aspects, one is electrical safety, the other is battery safety, in the safety accidents that have occurred, energy storage system fire accounted for a large proportion, the loss caused is also quite heavy. From that point of view, do well energy storage fire safety is obviously very important.
Double system, one end connected to perfluorohexanone, one end connected to tap water (about 0.2-0.4MPa)
Design a variety of detectors, such as temperature; Fumes; combustible gas; Carbon monoxide; Hydrogen and other detectors to sense the fire, through the prefabricated algorithm, start the fire extinguishing device.
Energy storage system refers to a system that stores energy in the form of electrical energy, chemicalenergy, etc., in case of emergency. Energy storage systems are used in a wide range of applications, including electric vehicles, solar energy, wind energy and other fields. However, the safety of energy storage system has always been the focus of attention, Fuji energy storage power station fire protection
system is specially developed for energy storage power station a fire extinguishing system, it is based on the principle of “early detection, accurate fire extinguishing”, in the primary stage of thermal runaway early warning and precise suppression treatment, the loss of electrochemical energy storage chamber as much as possible. The energy storage container fire fighting system is composed of fire alarm system + energy storage tank fire extinguishing system, according to the different needs of customers, wecustomize different fire extinguishing schemes. So what is the composition of the fire protection system of the energy storage power station?
- Fire host:
As the main fire control system in the station, the fire control host has the functions of collecting detector data, starting the fire extinguisher, sound and light alarm control, and linkage communication of the host in the station. The installation size is different according to the function of the host, and the installation methods are vertical, wall-mounted, and in-cabinet rail mounting. The fire host interacts with the station
communication host through the bus. Communication protocols are customized according to customer needs.
- The energy storage cabin fire extinguishing device:
The use of perfluorohexanone and water as the fire extinguishing medium, through the high-pressure water mist spray, the early spray of perfluorohexanone can improve the post-disaster utilization rate of the energy storage cabin, reduce economic losses, and the later stage can spray fine water mist for continuous cooling and fire extinguishing.
- Detector:
The composite detector integrates smoke, temperature, hydrogen (H2), carbon monoxide (CO), and electrolyte gas to detect fire. The detector is installed on the top of the battery cabinet and on top in the container space of the energy storage station.
- Sound and light alarm inside the station/outside the station:
The sound and light alarm inside and outside the station is installed inside and outside the container, and the sound and light alarm outside the station is an explosion-proof sound and light alarm, which isinstalled outside the container and at the evacuation channel for fire warning.
- Emergency stop switch:
set automatic manual, forced start, emergency stop, fire indicator light in one, installed at the entrance of the evacuation passage (outside the container).
The above components are indispensable to ensure the efficient and reliable operation of the energy storage fire protection system, meet the actual needs of fire fighting equipment and maintain the safety and stability of the system. In order to ensure the safe operation of the energy storage power station, Changyuan Spray suggests that the configuration of the fire protection system should be fully consideredwhen designing the energy storage power station.
Introduction to energy storage fire protection:
Fire cases of energy storage containers and causes of fires
The safety of energy storage power station is not limited to lithium batteries, if any link of the energy storage system fails, it may cause firesafety accidents, among which, safety risk and safe disposal is the core of energy storage power station safety issues, safety risks mainlycover the electrical safety, chemical safety and fire and explosion safety of energy storage systems and components; Safe disposalincludes the design of Fire cases of energy storage containers and causes of firesfire safety, the design of product standards and the designof emergency treatment.
Fire cases
Case 1: On the afternoon of May 31, 2016, an explosion occurred in the lithium-ion battery storage warehouse ofjiangsu Qidong enterprise,which was caused by the heating of the battery short circuit.
Case 2: Wuhan Fute caught fire and the waste lithium battery container burned for 2 hours, and a fire occurred in the production workshopof Wuhan Fute Electronic Technology Co., Ltd., and hundreds of square meters of production workshop were burned. As expected, the fireplant has not been completely repaired, and on October 15, a container of the company collecting waste lithium batteries recentlyexploded and caught fire again, and the fire lasted for 2 hours before being extinguished.
Case 3: In August 2018, a fire occurred in a user-side energy storage project in YangzhongCity,Jiangsu Province, which caused the lithiumiron phosphate battery container toburn down, causing adverse effects on the energy storage industry.
The cause of the fire：
1. The quality of the battery itself
Some battery production process defects, such as pole piece folding, poor cutting, poor coating of active materials and othermanufacturing defects. In longterm battery operation, the battery charge and discharge amplitude is large, and when it is stillcontinuously charged after full charge, the possibility of fire due to internal short circuit of the battery will become higher.
2. Lack of battery protection system
Due to the electrical shock caused by external grounding or short circuit, the DC contactor in the battery rack protection device explodes,resulting in a secondary short circuit accident in the bus bar in the battery protection device and the battery protection device shell, and afire may occur in the battery.
3. The installation of the energy storage system is not careful
As an emerging industry, some energy storage systems have defective designs, inattentiveinstallation, poor battery storage, incorrectwiring and other installation negligence will cause fire.
4.The environmental impact and maintenance of energy storage operation are not thorough
The electric energy storage industry is generally in a relatively harsh environment, thetemperature difference between day and night istoo large, it is easy to suffer from natural threats such as lightning strikes and wildfires, and dust is adsorbed in the operating environment
of the battery module, causing insulation damage to the grounding part between the battery and the module shell, which will cause firehazards.
5. Lack of integrated protection management system
Energy storage power stations lack comprehensive system design and protection, manufacturing entities fail to operate organically withother EMS, PMS, BMS and system integration enterprises, and the information sharing system is incomplete. If the PCS fault is repaired, thebattery is not confirmed to be abnormal, and the system is started again; 0&M personnel do not have strong security awareness, low skilllevel, and inadequate O&M management.Fire protection is currently one of the biggest problems facing the energy storage industry, whichhas a huge impact on the sustainable development of the industry, especially after the Beijing 416 incident, the industry has carried out in-depth thinking on safety issues inside and outside. Energy storage fire is different from the previous fire nature, and its fire emergencytreatment measures are not perfect, and the domestic energy storage fire safety standards are relatively missing or lagging behind.
