Closed battery box nozzle

The battery box automatic fire extinguishing device consists of an alarm system, perfluorohexanone supply equipment, partition valves, pipelines, nozzles, etc. It can be widely used in energy storage power stations and new energy vehicle battery box fire extinguishing. The nozzle structure and interface form can be customized according to customer requirements, and good atomization effect is confirmed. When the perfluorohexanone fire extinguishing agent cannot extinguish the fire, the nozzle can also be switched to water spray.

The closed battery box nozzle is a closed nozzle used to extinguish fires in energy storage battery packs. It uses glass bubbles as temperature detection elements to avoid false alarms from the sensor. Once the temperature inside the battery pack reaches the set temperature of the glass bubble, it will act and respond sensitively. The nozzle used can be taken out from the outside without dismantling the battery pack. It is compact and easy to install. In addition, the maintenance cost of the nozzle is low.

Features of closed battery box nozzle:

Material used: stainless steel (main material is 304)

Structure type: closed structure

Glass bulb temperature: 57°C/68°C

Structural advantages:

1. The sprinkler head designed for pack-level fire extinguishing systems has high atomization efficiency, rapid cooling, and effectively prevents thermal runaway. It is suitable for media such as perfluorohexanone and water.

2. It has good pressure resistance and air tightness, and can reach a protection level of IP67 or above.

3. Compact structure and easy to install.

Closed battery box nozzle selection table:

Closed battery box nozzles are mainly used to extinguish fires in energy storage power stations and new energy vehicle battery boxes. Some commonly used models have been developed based on the application requirements of these scenarios, and system integration manufacturers can choose according to their needs.

Copper alloy battery box nozzles are mainly used to extinguish fires in energy storage power stations and new energy vehicle battery boxes. Some common models have been developed based on the application requirements of these scenarios, and system integration manufacturers can choose according to their needs.

Application scenarios of closed battery box nozzle:

Battery box nozzles are mainly used in large-scale and distributed energy storage power stations, mobile energy storage vehicles, backup power storage stations, and fire protection systems covering the entire industry chain of power generation, transmission and transformation, electricity sales and electricity consumption. Although electrochemical energy storage devices represented by ion batteries have various advantages, potassium metal is the most reactive metal among known elements (including radioactive elements). Thermal runaway phenomena occur from time to time in the automotive field, posing safety risks for the application of lithium batteries in energy storage. As the last passive defense system, fire protection’s reasonable design, material selection, layout and construction directly affect the healthy development of the energy storage industry.

The following is the application scenario diagram of the closed battery box nozzle:

The closed battery box nozzle structure consists of:

The closed battery box nozzle is mainly composed of the following structures:

1. Closed quick-plug male end; 2. Battery box closed shell connector; 3. Spring; 4. Support frame; 5. Piston rod; 6. Plug; 7. Glass ball; 8. O-ring

Working principle of closed battery box nozzle:

The closed battery box fire extinguishing nozzle is a specially designed nozzle system designed to detect abnormal conditions inside the battery box and release fire extinguishing agent to extinguish the fire source when necessary. Its working principle can be briefly summarized as the following steps:

1. Detect abnormal conditions: The closed battery box fire extinguishing nozzle system monitors parameters inside the battery box through various sensors, such as temperature, gas concentration, pressure, etc. These sensors continuously collect data and compare it with preset safety parameters. Once an abnormality is detected, such as excessive temperature or gas concentration, the system will respond immediately.

2. Trigger alarm: When an abnormal situation is detected, the closed battery box fire extinguishing nozzle system will trigger an alarm to notify relevant personnel or the control center. This can be via audible alerts, SMS notifications or emails.

3. Activate the fire extinguishing nozzle: Once the alarm is triggered, the system will activate the fire extinguishing nozzle. This usually involves the release of fire extinguishing agents such as dry powder, gas or foam stored in pressure vessels. The released fire extinguishing agent will quickly extinguish the fire source in the battery box and prevent the fire from spreading.

4. Fire extinguishing agent control: Closed battery box fire extinguishing nozzle systems usually have multiple nozzles that can selectively release fire extinguishing agents. This means that the system can accurately control the location and size of the fire source, minimizing the waste of fire extinguishing agents.

5. System reset: Once the fire source is extinguished, the system will enter the reset state and be ready to deal with possible new abnormal situations.