Fire safety knowledge training education, summer safety knowledge education and safety training records Training Departme security agency nt Training Speake Organization time r al Recorder Number of people to Actual Absenteeism be number reached Train Training content: Definition of fire: Fire refers to the main disaster caused by uncontrolled combustion content in time according or to space.Fires their are classified nature, material combustion characteristics, causes of fire, losses and places of occurrence.National Fire Control Standard (GB4986-85) classifies fires into four categories according to their combustion characteristics. 1Class A fire.Fire of solid substances.This substance is often organic, and burning usually produces a burning ember.Such as wood, cotton, wool, hemp, paper fire, etc. 2Class B fire.It refers to the liquid fire and the solid material fire of heating and melting.Gasoline, kerosene, diesel, crude oil, methanol, ethanol, asphalt, paraffin fire, etc. 3Class C fire.Gas fires.Such as gas, natural gas, methane, ethane, propane, hydrogen fire, etc. 4Class D fire.Metal fire.Such as potassium, sodium, magnesium, titanium, lithium, aluminum and other metal fires. Hazards and Lessons of Fire Destroy material wealth; people's understanding of disasters begins with fires."Thieves steal endlessly three times and burn a clean fire." "Three years of success in wealth management, three minutes of fire."These two proverbs vividly depict the ruthlessness of fire. Fighting the Initial Fire Firstly, the basic method of fire extinguishing is material combustion, which requires three conditions at the same time, none of which is indispensable.According to this principle, all fire extinguishing methods are designed to destroy the combustion conditions that have been produced, or to make the free radicals in the combustion reaction disappear and stop the combustion.Specifically, there are four basic methods of fire extinguishing. 1Cooling fire extinguishing method is to spray fire extinguishing agent directly on the burning material according to the condition that certain temperature must be reached when the combustible material is burning, so that the temperature of the combustible material can be lowered below the ignition point, so as to stop the combustion.Cooling and extinguishing fire with water is a common method to extinguish fire. 2The isolation fire extinguishing method is to isolate or evacuate the burning object from the nearby unburned material according to the condition that the combustible material must be necessary for the occurrence of combustion, so as to stop the combustion.This is also a commonly used method for fire fighting, which is suitable for various solid, liquid and gas fires. 3The asphyxiation fire extinguishing method is to take appropriate measures to prevent air from flowing into the combustion zone, or dilute the oxygen content in the air with inert gas, so as to make the combustion material lack or cut off oxygen and extinguish. 4Suppression of fire extinguishing means that the extinguishing agent participates in the process of combustion reaction, so that the free radicals produced in the combustion process disappear and form stable molecules with low activity, thus stopping the combustion reaction.The fire extinguishing agents used in this method are dry powder, "1211" (difluoro-chlorobromomethane) and "1301" (trifluorobromomethane), which belong to the fire extinguishing agents involved in the interruption of combustion chain reaction in the combustion process.When extinguishing a fire, a sufficient number of fire extinguishers must be properly sprayed into the combustion zone so that the fire extinguishers can participate in the combustion reaction. Otherwise, it will not inhibit the combustion reaction and achieve the purpose of extinguishing the fire.At the same time, necessary cooling measures should be taken to prevent re-ignition. 2. The main stage of fire development.Fires usually have a process of gradual development from small to large, and even extinguishing. The process of fire development is generally divided into five stages: initial stage, development stage, violent stage, descending stage and extinguishing stage. In the initial stage, the burning area of solid combustible materials is small, the flame is not high, the radiation heat energy is not strong, the flow of smoke and gas is slow, and the burning

docxDoc Fire accident safety training record

Professional Docs > Common > Other > Preview
15 Pages 0 Downloads 217 Views 3.0 Score
Tips: Current document can only be previewed at most page8,If the total number of pages in the document exceeds page 8,please download the document。
Uploaded by admin on 2019-10-15 15:59:14
You can enter 255 characters
What is my domain?( )
  • No comments yet