The general understanding of the reactor is that there are physical or chemical reactions in the vessel. Through the structural design and parameter configuration of the vessel, the heating, evaporation, cooling and low-speed mixing functions required by the process can be realized.

Reactor is widely used in petroleum, chemical industry, rubber, pesticide, dyestuff, medicine and food. It is used to complete the pressure vessel of vulcanization, nitration, hydrogenation, alkylation, polymerization and condensation process, such as reactor, reaction pot, decomposition pot, polymerization kettle, etc. Its materials are generally carbon-manganese steel, stainless steel, zirconium, nickel-based (Harrington, Monel, Inkon) alloy and other composite materials. Material Science.

The general understanding of the reactor is that there are physical or chemical reactions in stainless steel vessels. The structural design and parameter configuration of the vessels are carried out according to the requirements of different process conditions. The design conditions, process, inspection, manufacture and acceptance of the vessels should be based on relevant technical standards in order to realize the functions of heating, evaporation, cooling and low and high speed mixed reactions required by the process. Pressure vessels must comply with the standard of GB150 {steel pressure vessels} and atmospheric vessels must comply with the standard of NB/T47003.1-2009 {steel welded atmospheric vessels}. The pressure requirement in the reaction process is different from the design requirement of the vessel. Production must be processed, tested and tested in strict accordance with the corresponding standards. The stainless steel reactor has different design structure and parameters according to different production process and operation conditions, that is, the reactor has different structure and style, which belongs to non-standard container equipment.

The reactor is a comprehensive reactor vessel. The structure, function and accessories of the reactor are designed according to the reaction conditions. From the beginning, feeding-reaction-discharging can complete the pre-set reaction steps with a high degree of automation, and strictly control the important parameters such as temperature, pressure, mechanical control (agitation, blast, etc.) and reactant/product concentration in the reaction process. The structure of the utility model is generally composed of a kettle body, a transmission device, a mixing device, a heating device, a cooling device and a sealing device. Corresponding auxiliary equipment: fractionating column, condenser, water separator, collecting tank, filter and so on.

Reactor materials are generally carbon-manganese steel, stainless steel, zirconium, nickel-based (Harrington, Monel) alloys and other composite materials. The reactor can be made of stainless steel materials such as SUS304 and SUS316L. The agitator has anchor type, frame type, propeller type, turbine type, scraper type and combination type. The rotating mechanism can adopt cycloidal pinwheel reducer, stepless speed reducer or frequency conversion speed regulation, etc. It can meet the special reaction requirements of various materials. Sealing device can adopt mechanical seal, packing seal and other sealing structures. Heating and cooling can adopt jacket, half pipe, coil, Miller plate and other structures. Heating methods include steam, electric heating, heat conducting oil, to meet the technological needs of acid, high temperature, wear resistance, corrosion resistance and other different working environments. It can also be designed and manufactured according to user's technological requirements.

Reactor structure

The reactor is composed of a reactor body, a cover, a jacket, an agitator, a transmission device, a shaft encapsulation device and a support. When the height-diameter ratio of the mixing device is large, the multi-layer impeller blade can be used, and the mixing device can be optionally selected according to the user's requirements. A jacket is arranged outside the vessel wall, or a heat exchange surface is arranged inside the vessel, and heat transfer can also be carried out through an external circulation. Supporting pedestals have supporting or ear support, etc. Gear reducer should be used when the speed exceeds 160 revolutions. The number, specifications or other requirements of opening can be designed and manufactured according to user's requirements.

1. Packing seal is usually used under normal pressure or low pressure, and the pressure is usually less than 2 kg.

2. Mechanical seals are used in general medium pressure or vacuum pumping, and the general pressure is negative pressure or 4 kg.

3. Under high pressure or high volatility of medium, magnetic seal will be used. Generally, the pressure is more than 14 kg. In addition to magnetic seals are used to cool water, other forms of seals over 120 degrees will increase the cooling water jacket.

Attention to the Use of Reactor

Reactor is a kind of reaction equipment. We must pay attention to it when we operate. Otherwise, it will be damaged for many reasons, resulting in production being forced to stop. The operation of the reactor should pay attention to many aspects.

First of all, we must strictly follow the rules and regulations to operate the reactor.

Secondly, before operation, we should carefully check whether there is any abnormality. In normal operation, we should not open the terminal of the upper cover and touch the board to avoid electric shock; strictly prohibit the operation with pressure; in the process of nitrogen pressure test, we should carefully observe the change of pressure gauge to reach the pressure test and close the nitrogen valve switch immediately; the heating speed should not be too fast, and the pressure should also be slow, especially stirring. Speed, only slow speed.

Finally, when the kettle body is heated to a higher temperature, do not contact with the kettle body in order to avoid scalding; after the experiment, the temperature should be lowered first. Do not cool quickly in case of damage caused by excessive temperature difference and pressure. At the same time, the power supply should be pulled out in time.

At the same time, attention should be paid to the maintenance of the reactor after use, so that the autoclave can have a better service life.