Most high-pressure reactors are composed of agitators, reaction vessels and transmission systems, safety devices, cooling devices, heating furnaces, etc. Below, we will briefly introduce the composition of each part.
Stirrers are generally divided into two types: mechanical stirring devices driven by magnetic coupling devices, and magnetic stirring devices. The former is driven by a magnetic coupling device to rotate the stirring blade at high speed to uniformly stir the reactants. Different structural forms of stirring blades can be replaced for different reactant objects, suitable for more viscous reactants. The structure types of stirring blades include axial flow blades, helical blades, inclined blades, anchor blades, etc. The latter magnetic stirrer mainly relies on the force of magnetic force to drive the reactants in the container to stir. Composed of a driver and a magnetic stirrer. The stirring principle is that the driver generates a rotating magnetic field, allowing the magnetic stirrer to rotate inside the stirred container under the action of magnetic force, driving the reactants to rotate.
A reaction vessel is a place where reactants react, and can generally be divided into small-scale high-pressure reaction vessels, medium scale high-pressure reaction vessels, and large-scale high-pressure reaction vessels based on their volume. The pressure that a reaction vessel can withstand is related to the material and the thickness of the reaction vessel wall. The material of the reaction vessel can be selected according to the characteristics of the reactants, including ordinary steel, corrosion-resistant and high-temperature alloys, etc., depending on specific needs.
Transmission system: refers to the device that drives materials and reaction products to enter and exit the reaction kettle, such as various types of pumps, flow meters, etc.
Safety device: In a broad sense, it refers to a pressure gauge, rupture disc safety device, gas-liquid phase valve, temperature sensor, safety mechanism program such as interlock alarm, etc. installed on the pressure gauge kettle cover. In addition, a cooling water jacket can be installed between the high-pressure reaction kettle coupling and the kettle cover. When the operating temperature is high, cooling water should be supplied, and the magnetic steel temperature should be too high and demagnetized to improve safety.
Cooling device: There are condensation pipes inside or outside the kettle, temperature cycling machines, etc.
Heating furnace: Generally, high-pressure reactors with small containers can be heated by electricity, with an external jacket and the heating furnace built into the jacket. There are also heating methods such as jacket thermal oil heating and jacket circulating water heating.
