Four methods for obtaining high temperature in enamel reactor

Enamel reactor is commonly known as glass-lined reactor. Because of its unique superiority and relatively low price, it has replaced stainless steel, non-ferrous metals, plastics, etc. in many industries, pharmaceuticals, printing and dyeing, agriculture, brewing, and chemical industries. Chemical Equipment. The equipment is made of glass enamel with high silicon content sprayed on the inner surface of the metal tire, and then subjected to multiple high temperature sizzling process at 1000 °C, so that the glass enamel is evenly tightly adhered to the inner surface of the metal tire to form a special product. Therefore, it has chemical stability similar to glass and good mechanical properties of metal.

We all know that the enamel glass enamel reactor has a higher operating temperature, because most of the chemical reactions usually need to be carried out under certain temperature conditions, so from the technical point of view, it is necessary to withstand the pressure and withstand the temperature change. There are usually the following methods for obtaining high temperature:

1, water heating method

When the reactor reaction temperature is not required to be high, water heating can be used for heating. The enamel reactor heating system is available in both open and closed versions. The heating system is relatively simple. It consists of a circulating pump, a water tank, a pipe and a regulator that controls the valve. When high-pressure water is used, the mechanical strength of the reactor is high, and the outer surface of the reactor is welded with a coil, and the coil has a gap with the wall. Increases thermal resistance and reduces heat transfer.

2, steam heating

If the enamel reactor requires a heating temperature below 100 degrees Celsius, it can be heated by steam below one atmosphere; when the heating temperature is in the range of 100-180 degrees Celsius, saturated steam can be used; when the temperature is higher, high pressure overheating should be used. steam.

3, electric heating method

The electric resistance wire is wound around the insulating layer of the reactor body or is mounted on a special insulator at a certain distance from the reaction vessel, so that a small space gap is formed between the electric resistance wire and the reactor body.

4, other medium heating

If the reaction medium process requires the enamel reactor to operate at high temperatures or to avoid the use of high-pressure heating systems, other media may be used instead of water to drink steam, such as mineral oil (275 ° C ~ 300 ° C), diphenyl ether mixture (boiling point) 258 degrees Celsius), molten salt (140 degrees Celsius ~ 540 degrees Celsius), liquid lead (melting point 327 degrees Celsius).