Stainless steel storage tanks usually require chemical reactions to be carried out under certain temperature conditions, so the reactor is subjected to both pressure and temperature. Stainless steel storage tanks usually have the following high-temperature methods: when the steam heating temperature is below, it can be heated by steam below one atmosphere. When the temperature is higher, high-pressure superheated steam can be used. When the water temperature is required to be low, the heating system can be used in both open and closed modes. The open type is relatively simple. It consists of a circulating pump, a water tank, a pipe and a regulator for controlling the valve. When high-pressure water is used, the mechanical strength of the equipment is high, the outer surface of the reactor is welded with a coil, and the coil has a gap with the wall of the kettle. The thermal resistance increases and the heat transfer effect decreases.
When avoiding the use of high-pressure heating systems, other media can be used instead of water and steam, such as mineral oil, biphenyl ether mixtures (boiling point, molten salt, liquid lead, etc.). Therefore, a small space gap is formed between the electric resistance wire and the reaction vessel body. In the first three methods, the jacket is added to the kettle body. Due to the large temperature variation, the jacket and the casing of the kettle are subjected to temperature changes to generate temperature difference pressure. When using electric heating, the equipment is light and simple, the temperature is easy to adjust, and the pump, stove, chimney and other facilities are not needed. The driving is also very simple, the risk is not high, the cost is low, but the operating cost is higher than other heating methods. Therefore, it is suitable for heating temperatures below and where the price of electricity is lower.
In the stainless steel reactor, the chemical reaction is usually carried out. In order to ensure uniform and rapid reaction, and the efficiency is improved, a corresponding stirring device is usually installed in the reaction vessel.