The temperature control system of the reactor is a kind of equipment used for cooling, heating and constant temperature control of the reactor, the reactor and other fluids. A series of exothermic and endothermic reactions will occur during the polymerization reaction in the matching reactor. During the reaction, if the heat is not removed in time, the reaction pressure will be affected. If the pressure is too high, the whole reaction will be in some danger. The LNEYA reactor temperature control system uses the existing steam as a power heat source to quickly respond to the exothermic and endothermic reactions that occur in the entire reaction process. It adopts a fully closed circulation pipeline, which can control one or more reactors at the same time. It is currently the most widely used equipment in the pharmaceutical and chemical industry.