Which of the common industrial gases are toxic? Industrial gases are commonly available, some of which are toxic. In the process of production, use, storage and transportation, if not effective protection, may cause harm to the human body, causing major accidents. The following is a list of common industrial gas toxic gas characteristics and hazards, in order to increase everyone’s safety awareness, to prevent the human body hazards and poisoning accidents.
There are about eight million chemicals in the world, of which 70,000 are commonly used, and thousands more are created every year. In a wide variety of chemicals, there are many toxic chemicals, in the process of production, use, storage and transportation, there may be harm to the human body, even endanger people’s lives, causing huge catastrophic accidents. Therefore, to understand and master the basic knowledge of the harm of toxic chemical substances to human body, to strengthen the management of toxic chemical substances, to prevent its harm to human body and the occurrence of poisoning accidents, no matter for managers or workers, is very necessary.
1, irritant gas — chemical industry often encounter toxic gas. The most common are chlorine, ammonia, nitrogen oxides, phosgene, hydrogen fluoride, sulfur dioxide, sulfur trioxide and dimethyl sulfate. There are many types of irritating gases that irritate the mucous membranes of the eyes and respiratory tract,
2, suffocation gas — can cause the body hypoxia toxic gas. Asphyxia gas can be divided into pure asphyxia gas, blood asphyxia gas and cell asphyxia gas. Such as nitrogen, methane, ethane, ethylene, carbon monoxide, nitrobenzene vapor, hydrogen cyanide, hydrogen sulfide, etc.
Vacuum unit _ liquid ring vacuum pump from the liquid ring vacuum pump discharged gas and part of the water, toxic gas collection vacuum pump, into the gas and water separator, the water flow to the lower part of the separator, the gas is separated, and through the exhaust pipe of the separator discharged.
Separators are necessary equipment for liquid ring compressors. Its main function is to separate the gas from the water from the pump exhaust pipe and to allow the separated gas to go to the equipment that needs the gas pressure. In addition, toxic gas dissolved in the water vacuum pump, some gas and water separator also plays a role in the supply of additional cooling water pump.
Assembly of liquid ring vacuum pump rolling bearing and coupling
Assembly method for rolling bearings
Assembly of liquid ring vacuum pump rolling bearings depends on the interference of rolling bearings and journal or bearing bore. When interference is small, the use of pressure into the method of assembly, when interference is large, the use of thermal assembly.
In the case of pressing assembly, the urumqi vacuum pump can be struck symmetrically by copper rod and hammer on the inner seat ring with interference in a certain order. In addition, the sleeve made of soft metal can be driven by hand hammer or pressed by a press.
When using the thermal assembly method, the egg holder machine vacuum pump, first put the bearing in the oil to heat, the temperature of the oil should be below 100℃, from the oil immediately out of the suit on the journal. The advantage of hot packing is that it does not break the fit.
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