Introduction to the fire extinguishing principle of heptafluoropropane

What is heptafluoropropane?

Heptafluoropropane is a gas fire extinguishing agent developed and produced by Great Lakes Corporation of the United States to replace halon fire extinguishing agent. It is also a gas fire extinguishing system that is currently used more frequently. Some customers are worried about whether the heptafluoropropane fire extinguishing system can play a role in extinguishing fires, and some customers are worried about harm to the human body, damage to protected objects, etc. Next, we will discuss the basic introduction, fire extinguishing principle and characteristics of heptafluoropropane.

1. Basic introduction of heptafluoropropane

Heptafluoropropane is named HFC-227ea, also known as FM200, with the chemical formula C3HF7. It is a colorless, odorless, non-conductive, and non-polluting gaseous fire extinguishing agent. Its fire extinguishing principle is a combination of physical and chemical reactions. It relies on the physical reaction of absorbing heat energy in the fire scene and reducing the flame temperature, and the chemical reaction process of the free radicals generated by thermal decomposition and the active free radicals to interrupt the chain reaction of combustion to achieve the purpose of fire extinguishing. In the actual fire extinguishing process, the principle of heptafluoropropane fire extinguishing is to extinguish the fire through chemical and physical reactions, mainly chemical reactions.

2. Principle of Heptafluoropropane Fire Extinguishing

1. Chemical Fire Extinguishing Reaction of Heptafluoropropane

During the fire extinguishing process, heptafluoropropane undergoes thermal decomposition to produce fluorine-containing free radicals such as CF3, CF2, CF3CFO and CFO. These fluorine-containing free radicals react with active free radicals such as H, O, ·OH, HO2·, ·O2-, NO· in the combustion reaction to produce CO2, H2O, HF, etc., thereby interrupting the chemical chain reaction in the combustion process.

2. Physical fire extinguishing reaction of heptafluoropropane

(1) The fire extinguishing agent is sprayed into the protected area in a form close to liquid. When sprayed out from the nozzle, the liquid rapidly changes its properties from a near-liquid state to a gaseous state. It absorbs a large amount of heat during vaporization, reducing the temperature in the protected area and around the flame.

(2) The molecular weight of heptafluoropropane fire extinguishing agent is relatively large. When extinguishing a fire, some bonds in the molecule break and absorb heat, which has a certain effect of inhibiting free radicals and other combustion active groups and reducing the temperature.

(3) The vaporization process of heptafluoropropane is rapid, and the concentration in the protected area increases rapidly, which can quickly reduce the partial pressure concentration of oxygen, reduce the combustion speed of the flame, and gradually reduce the oxygen concentration to below the combustible concentration.

Main parameters of suspended FM200 HFC-227ea heptafluoropropane fire extinguishing device

1. Basic introduction of heptafluoropropane

Heptafluoropropane is named HFC-227ea, also known as FM200, with the chemical formula C3HF7. It is a colorless, odorless, non-conductive, and non-polluting gaseous fire extinguishing agent. Its fire extinguishing principle is a combination of physical and chemical reactions. It relies on the physical reaction of absorbing heat energy in the fire scene and reducing the flame temperature, and the chemical reaction process of the free radicals generated by thermal decomposition and the active free radicals to interrupt the chain reaction of combustion to achieve the purpose of fire extinguishing. In the actual fire extinguishing process, the principle of heptafluoropropane fire extinguishing is to extinguish the fire through chemical and physical reactions, mainly chemical reactions.

Company introduction:

Guangzhou Rongan Fire Protection Equipment Co., Ltd. is a professional manufacturer of fire protection facilities integrating R&D, production, design and sales services. The company has experts from the national fire protection industry standards committee and a group of professional technical service teams with more than ten years of experience in the fire protection industry, and will spare no effort to provide you with the most intimate and professional comprehensive technical solutions for fire protection engineering products. "Rongxiao" series products produced by the company have passed the national compulsory product certification and the national fixed fire extinguishing system inspection center, with reliable quality and stable performance, and the factory has passed the ISO9001 quality system certification.

Frequently asked questions:

Q1: Are you a manufacturer or a trading company? A1: We are manufacturers.

Q2: How long is the delivery time? A2:10 days, which can be negotiated according to the quantity.

Q3: How to deal with the fault? A3: During the warranty period, we will provide you with a remote emergency plan during working hours. During the free maintenance period, the company will replace spare parts or complete machines that have failed due to defects or quality problems free of charge.