The general understanding of the reactor is the container with physical or chemical reaction. Through the structural design and parameter configuration of the vessel, the heating, evaporation, cooling and low speed mixing function of the process are realized.
The reactor is widely used in petroleum, chemical, rubber, pesticide, dye, medicine, food, pressure vessel to complete vulcanization, nitration, hydrogenation, alkylation, polymerization, condensation process, such as reactor, reaction pot, pot, decomposition polymerization kettle; material generally have carbon steel, stainless steel, nickel, zirconium base (Harrington, Monel, Kang Ni) alloy and other composite materials. At present, the traditional heating methods of reaction kettle
are mainly as follows: heat conducting oil heating mode, electric heating mode and steam heating mode.
Heating method of reaction kettle and its advantages and disadvantages:
One. Heating method of heat conducting oil
The characteristics of this kind of heating is high heat efficiency, uniform heating operation of steam heating and electric heating cost is low, but the fatal flaw is dangerous, and the equipment after one year of operation, the heat transfer efficiency will be greatly reduced, need to replace the oil and heat pipe.
Two. Electric heating mode
The heating method of the reactor is characterized by clean heat source, convenient operation, environmental protection and high efficiency, and the disadvantage is that the operation cost is too high. The disadvantage is uneven heating.
Three, steam heating mode
The temperature range is generally within the range of 100--180 DEG C this heating users need to be equipped with high-pressure steam boiler, not only the user equipment cost is very high, but also because of pressure vessels need professional operation, the heating speed is very slow. If the process requirements of reactor must be operated under high temperature, or to avoid the use of high pressure heating system, can use other medium instead of water and steam, such as mineral oil (275--300 C), diphenyl ether mixture (the boiling point of 258 DEG C), molten salt (140--540 C), liquid (melting point of 327 DEG C).