The chemical reaction of stainless steel Baijiu tank usually needs to be carried out under certain temperature conditions, so the reaction kettle bears both pressure and temperature. There are usually several ways to obtain high temperatures: steam heating can be done by heating with steam at a temperature below atmospheric pressure; Use saturated steam within the range; When the temperature is higher, high-pressure superheated steam can be used. When water heating requires a low temperature, it can be used. There are two types of heating systems: open and closed.
The open type is relatively simple, consisting of a circulating pump, water tank, pipeline, and a regulator that controls the valve. When high-pressure water is used, the mechanical strength of the equipment is required to be high. There is a gap between the welded pipe on the outer surface of the reaction kettle and the kettle wall, which increases the thermal resistance and reduces the heat transfer effect.
Secondly, when operating or avoiding high-pressure heating systems, other media such as mineral oil and steam can be used instead The mixture of diphenyl ether (boiling point, molten salt, liquid lead, etc.) forms a small spatial gap between the resistance wire and the reactor body. The first three methods of obtaining high temperature require adding a jacket on the reactor body. Due to the large amplitude of temperature change, the jacket and shell of the reactor are subjected to temperature changes and generate temperature difference pressure.
When using electric heating, the equipment is relatively light and simple, the temperature is easy to adjust, and facilities such as pumps, furnaces, and chimneys are not needed. It is also very simple to start, with low risk and cost. However, the operating cost is higher than other heating methods, and the thermal efficiency is below. Therefore, it is suitable for places where the heating temperature is below and the electricity price is lower.
Chemical reaction is usually required in the heating system of stainless steel Baijiu tanks. In order to ensure that the reaction can be carried out evenly and quickly and improve efficiency, the reaction kettle is usually equipped with a corresponding mixing device, which brings about the problem of dynamic sealing of the drive shaft and preventing leakage.