The main reasons for the explosion of Bao in the reaction kettle accident are telephone Shaw workers. Mobile phone 15857012567
1. Material problem: most of the materials in the reaction kettle belong to dangerous chemicals. If the material is a kind of spontaneous combustion and low flash point material, once the leak, Bao will form explosive mixtures with air, encountered ignition (Ming Huo, spark, etc.), may cause fire bombing of Bao; if the materials belong to toxic substances, once the leak may cause Zhong toxic asphyxia.
2, manufacturing equipment: reactor design, equipment structure shape is not continuous, improper arrangement of weld, may cause stress concentration; the improper material selection, manufacture of container welding quality is not up to the requirements, and improper heat treatment, may make the material toughness decrease; vessel erosion corrosion medium, or lack of strength reduced safety accessories, all can make the container in the process of using Bao fried.
3, runaway reaction caused the fire bombing of Bao: many chemical reactions, such as oxidation, chlorination, nitration and polymerization are strong exothermic reaction. If the reaction is out of control or power outages, suddenly without water, the reaction caused by heat accumulation, a sharp increase in the temperature and pressure in the reaction kettle increases, pressure exceeds its capacity, will lead to rupture of the container. The material ejected from the rupture, may cause fire explosion accident Bao; reactor burst leads to equilibrium vapor pressure of the material is damaged, the superheated liquid instability will cause 2 Bao (steam Bao fried fried); spray material is then spread rapidly, the space around the reactor by combustible liquid droplets or steam enveloped in case of fire will happen 3 times Bao (Bao mixed gas fried fried).
4, water vapor or water leaking into the reaction vessel accident: if the water vapor, thermal oil heating, or cooling water leaking into the reactor, distillation kettle, and materials in the reaction kettle, exothermic decomposition, temperature caused a sharp rise in pressure, the material out of the fire accident.
5, the container is heated to cause Bao explosion accident: the reaction container caused by external combustible fire or heat radiation from high temperature heat source, causing the container temperature to rise sharply, the pressure increased, and there will be an accident of blanking or Bao explosion.
6, material import container accidents caused by improper operation: a lot of low flash point flammable liquid into the reactor from the pipe through the liquid pump or vacuum way, these materials are mostly poor insulation material, conductive material, if the flow is too fast, will cause the accumulation of static electricity can not be timely removal, burning explosion accident bao.
The above accidents and reasons for Bao explosion fully explain the importance of safe operation of reactor, because most of the accidents are caused by operation and use of reactors.