Double-layer glass reactor installation and operation
 

As a container for physical or chemical reactions, the reactor plays an important role in petroleum, chemical, rubber and other fields. The double-layer glass reactor is highly praised by the industry for its constant speed, no brush, no spark, safety and stability, and continuous operation. The double-layer glass reactor interlayer can be heated or cooled by different cold and heat sources (refrigerant, hot water or hot oil), and the inner layer is placed in the reaction medium to be stirred. It can be stirred under normal pressure or negative pressure according to the requirements of use, and can carry out reflux and distillation of the reaction solution. It is an ideal pilot and production equipment for modern fine chemical, biopharmaceutical and new material synthesis.

 

Under the constant temperature condition, the sealed double-layer glass reactor can be stirred under normal pressure or negative pressure according to the use requirements, and the reaction solution can be refluxed and distilled. The glass reactor can be used in conjunction with a low temperature coolant circulating pump, a high temperature circulating oil bath, and a circulating water vacuum pump in an industrial test.

 

The jacketed glass reactor is simple and convenient to operate, and the reaction process is not only clear at a glance, but also convenient to control. However, in daily operation and use, how to better use the double-layer glass reactor to make it play its value is a problem that producers have to think about. In terms of high temperature, there are four ways to help the glass reactor to obtain the highest temperature.

 

Choose the four heating methods according to the actual situation:

Water heating method. When the temperature is not high in the production process, it can be heated by water heating. The water heating system is divided into two types: open type and closed type. The open type is simpler and consists of a circulating pump, a sink, a pipe and a regulator that controls the valve. When high-pressure water is used, the mechanical strength of the equipment is relatively high. The outer surface of the reactor is welded with a coil, and there is a gap between the coil and the wall of the kettle, so that the thermal resistance is increased and the heat transfer effect is reduced.

 

Steam heating method. When the production requires a heating temperature below 100 ° C, steam can be used to heat the double-layer glass reactor. This method uses a vapor below atmospheric pressure to heat the equipment. When the temperature is required to be in the range of 100-180 ° C, saturated steam can be used, and when the temperature requirement is higher, high-pressure superheated steam can be used for heating.

 

Electric heating method. The electric heating is wound on the insulating layer of the double glass reactor barrel by a resistance wire or on an ad hoc insulator at a certain distance from the jacketed double layer glass reactor. Therefore, a small gap can be formed between the electric resistance wire and the double-layer glass reactor body.

 

The above three are the more commonly used double-layer glass reactor heating methods, as well as heating by other media. When the production process requires operation at higher temperatures, or when high pressure heating systems are to be avoided, other media may be used instead of water and steam. For example, mineral oil (275-300 ° C), diphenyl ether mixture (boiling point 258 ° C), molten salt (140-540 ° C), liquid lead (melting point 327 ° C) and the like.