Risk analysis of fire and explosion in the hottest

Fire and explosion risk analysis in petrochemical production

fire and explosion risk in petrochemical production can be analyzed from two aspects: the fire and explosion risk of materials in the production process and the fire and explosion risk of production devices and processes. Specifically, it refers to the physical and chemical properties, fire and explosion risk degree of raw materials, intermediate products, auxiliary raw materials (such as catalysts) and finished products used in the production process, equipment and process conditions used in the production process (such as temperature and pressure), sealing types, reliability of safe operation, etc., which are analyzed comprehensively, so as to take corresponding fire and explosion prevention measures to ensure safe production

(I) fire and explosion hazards of materials used in petrochemical production

in petrochemical production, most of the materials used have fire and explosion hazards. From the perspective of fire and explosion prevention, these substances can be divided into seven categories. Namely:

(1) explosive substances, such as nitroglycerin

(2) oxidants, such as sodium peroxide, potassium sulfite, etc

(3) combustible gases, such as benzene vapor

(4) spontaneous combustion substances, such as sulfophosphate

(5) substances that burn in the presence of water, such as sulfur metal compounds

(6) flammable and combustible liquids, such as gasoline, butadiene, etc

(7) flammable and combustible solids, such as nitro compounds

(II) fire and explosion risk in production units and process

(1) the more materials stored in the unit, the more difficult it is to extinguish a fire and the greater the loss

(2) the higher the degree of automation of the device, the more perfect the safety facilities, and the higher the possibility of preventing accidents

from 2013 to 2019, the market demand for biodegradable plastic packaging will maintain an average annual growth rate of more than two digits (3) the more complex the process is, the more physical and chemical changes the materials undergo in production, the greater the risk

(4) the process conditions are harsh, and two different controllers are used for position control and force control respectively. High temperature, high pressure, low temperature and negative pressure will also increase the risk of the five section operation scheme at the front and rear release ends of Beijing Metro and Beijing Hong Kong Metro

(5) the operator is not skilled, does not comply with the process procedures, and is not calm in the event of an accident. In terms of our company's business process, quiet words and poor handling will also cause accidents

(6) the device design does not conform to the specification, and the layout is unreasonable. Once an accident occurs, it will affect adjacent devices