The applicable places of Hexafluoropropane fire extinguishers (HFC 236 FA) mainly include the following three categories:
1: Electronic and communication places, such as microwave computer room, decimeter wave machine room and power distribution room in the radio and television transmission tower. Telecom's program-controlled switch room and signaling transfer point room. If a carbon dioxide fire extinguishing system is used, when the carbon dioxide is injected, the ambient temperature is greatly reduced, the moisture in the air is condensed, and the water mist is extremely concentrated, causing serious fouling on expensive electronic equipment, and carbon dioxide and carbonic acid are dissolved in the water. It has a great influence on the integrated chip and circuit in the computer room and communication room, and will cause static electricity accumulation on the surface of the electrical equipment. Hexafluoropropane has been tested by the DuPont Company of the United States as being low-toxic, harmless, and non-irritating to human skin. There is no protection for the protective material, which plays a certain protective role for valuable and precise instruments. And hexafluoropropane does not decompose at room temperature, does not absorb moisture, and does not agglomerate. Easy to store for a long time, and no residue after fire extinguishing. In addition, hexafluoropropane has good fluidity, dispersibility, and electrical insulation. When a fire occurs, hexafluoropropane will not cause short circuit of electrical equipment, and firefighters may get electric shock. The accident happened.
2: Metallurgical, electric power, petroleum, chemical and other industrial sites, such as power systems, including communication equipment rooms and control rooms of central and provincial security, disaster prevention and power dispatching command centers at the network level or above, and units in thermal power plants Control room, cable tunnel, cable mezzanine, control center of petrochemical industry, data processing center, etc. If a water mist fire extinguishing system is applied, these charged equipment encounters water, which may easily cause electrical short circuit of the equipment, damage the equipment, and secondly may cause personal injury to the site personnel. The hexafluoropropane R236fa pipeless network automatic fire extinguishing system is divided into three modes: electronic control start, superconducting start, and temperature control start; the electronic control start is connected with the fire alarm fire extinguishing controller, and the fire alarm controller passes A smoke detector, a temperature detector or a cable differential temperature detector detects a fire signal. When there is only one signal, the controller only alarms and does not activate the fire extinguishing device. For example, the controller receives two signals and confirms that the fire has occurred. At the same time as the alarm, the fire extinguishing device is activated 30 seconds after the delay, during which time the duty officer has enough time to determine whether the fire has occurred. The simultaneous occurrence of smoke signal and temperature rise signal in the protected area is definitely a fire, otherwise the alarm controller will not start the hexafluoropropane automatic fire extinguishing device. The other way of starting the hexafluoropropane: the principle of superconducting start is to be hot. The sensitive wire is wound around the cable. Once the cable temperature rises, only when an open flame occurs, the fast thermal wire is ignited to start the fire extinguishing device, and there is no possibility of accidental spraying. The superconducting thermal wire only feels the open flame signal, and also the static electricity. Nothing! The temperature control start mode is to select the temperature sensing element according to the ambient temperature of the site. Only when the ambient temperature rises to the set value, the device will automatically start, and the accidental spray phenomenon will not occur. Due to high fire-extinguishing efficiency, representative cases of cable tunnels and interlayers that have been widely used in steel and power companies include: Wuhan Iron and Steel Group, Anshan Iron and Steel Group, Henan Huarun Dengfeng Power Plant, Henan Xuchang Longgang Power Plant, Jianghan Oilfield, Shape, Wuhan Petrochemical And other large and medium-sized enterprises.
3: Cultural heritage, financial data and other non-renewable resource sites, such as national and provincial libraries, archives in archives, treasures in museums; showrooms for first-grade paper artifacts; archives in financial departments , bill rooms, important information rooms and news centers; expensive facilities in large medical facilities, etc. The water mist also causes irreparable damage to the protective material while extinguishing the fire. The heritage of cultural relics is a single, non-renewable resource. Therefore, when it is selected for fire-fighting systems, it requires fire-extinguishing systems with good fire-extinguishing effect and fast fire-fighting speed. On the other hand, it is required that fire-extinguishing agents cannot corrode and destroy cultural heritage. In order to facilitate the long-term safe preservation of cultural relics. Hexafluoropropane(HFC-236FA) is a new type of patented product that is completely different from ordinary dry powder. It has been tested by the relevant state departments and proved by a large number of experiments that the fire extinguishing agent has no effect on the heritage of the cultural relics, no damage, no re-ignition.