70L Capacity 42kg Gas Filling Volume CO2 Fire Suppression System with 5.7MPa

Product Specification

High-pressure carbon dioxide fire extinguishing system

System Composition:
  The QME70 high-pressure carbon dioxide fire extinguishing system is mainly composed of cylinder groups, container valves, selection valves, signal feedback devices, piping networks, nozzles, gas fire extinguishing controllers, weighing devices, etc.
According to the installation form, it can be configured into two types of fire extinguishing systems: unit independent fire extinguishing system and combined distribution fire extinguishing system.




System Features:
Carbon dioxide gas is an excellent fire extinguishing agent. Its chemical formula is CO. At normal temperature, it is a colorless, odorless, non-conductive, chemically neutral, corrosive and toxic gas. The vapor pressure of carbon dioxide changes with temperature. As the temperature rises, the vapor pressure increases. In a fixed container, as the temperature rises, the pressure that the container can withstand also increases. This fire extinguishing system belongs to physical fire extinguishing. It has the characteristics of safety, stability, convenience, rapidity and ease of use. This series of products all meet the requirements of GB16669 standard and have voluntary certification certificates.

Application scope:
1. Electrical fire hazard areas, such as: electronic computer rooms, electronic equipment rooms, communication rooms, etc.
2. Liquid fire (petroleum products, glycerin, etc.) and liquefiable solid fire (sulfur, phosphorus, paraffin, plastics, etc.) hazard areas, such as oil transformers, distribution rooms with oil-filled switches.
3. Solid surface and deep-level fire hazard areas of cotton, wool, fabrics, paper, etc., such as libraries, archives, and document and cultural relic storage rooms.
4. Gas fire hazard areas, such as natural gas, hydrogen, liquefied petroleum gas, methane, etc.

Technical Specifications:
 

Working principle:


Startup methods:
  The system's startup relies on two types of drives, namely the electromagnetic drive and the pneumatic-handled dual-purpose drive.
1. The electromagnetic drive is used for the upper bottle.
2. The pneumatic-handled dual-purpose drive is used for the main cylinder.

  The system has four specific startup methods: automatic startup, manual startup, mechanical startup, and emergency mechanical startup.
1. Automatic startup - When two different types of detectors (usually smoke and temperature combined) in the protected area simultaneously send out fire alarm signals, the fire alarm controller delays for 30 seconds (0-305 adjustable), and sends an electrical signal to activate the corresponding area's startup cylinder. The startup gas first opens the selection valve of the corresponding area, and then opens the fire extinguishing cylinder group (in a unit-independent system, the fire extinguishing cylinder is directly opened), implementing fire extinguishing in the corresponding area.
2. Manual startup - When a fire occurs in the protected area and the personnel have safely evacuated, the staff presses the emergency startup button at the entrance of the protected area, and delays for 30 seconds (0-30 seconds adjustable). The fire alarm controller sends an electrical signal to activate the corresponding area's startup cylinder, implementing fire extinguishing in the corresponding area.
3. Mechanical startup - When the electrical startup fire extinguishing fails, the staff can mechanically start the corresponding area's startup cylinder in the cylinder room to implement fire extinguishing in the corresponding area.
4. Emergency mechanical startup - When the above three startup methods fail, the staff can manually open the corresponding selection valve and the active cylinder head valve in the cylinder room respectively to implement fire extinguishing in the corresponding area.

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