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High pressure reactor safe use procedures
High pressure reactor safe use procedures.
1. Prepare the autoclave before using it. Before feeding, check whether the reaction kettle is contaminated, clean the inner wall of the autoclave, stirring, cooling coil, temperature probe casing and joint surface with ethanol, then rinse with distilled water, and wipe with cotton or silk cloth dipped in ethanol after rinsing to prevent cross-contamination of materials. Before use, the valves must be checked for smooth flow, especially the pressure gauge and the orifice of the explosion-proof film. For the air inlet conduit, you also need to pay special attention to whether there is any blockage. If there is material contamination or blockage, the conduit and air inlet branch pipe should be removed from the kettle cover, cleaned and then installed.
2、After cleaning and drying the autoclave body, you should check the sealing first. Put the kettle body into the heating furnace, align the protruding part with the groove, gently rotate the kettle body, put it in a stable position, slowly and smoothly close the kettle body and the cover, pay special attention to protect the sealing surface, avoid collision between the cover and the sealing ring of the kettle body and damage the sealing surface, avoid collision between the cover and the sealing ring of the kettle body and damage the sealing surface. After covering, you should check whether the upper and lower interfaces of the reactor are aligned, gently rotate the kettle cover to confirm that the cover has been put flat and the sealing ring is in good contact, add the gasket and then start to put on the screws.
3. When putting on the screws, make sure to put them in the right place, first tighten them by hand, then use a torque wrench to form a cross-shaped symmetry on the cross-shaped symmetry, in order to avoid uneven force on the cross-shaped symmetry. Do not twist the screws in place at once, screw the diagonal screws in several times, and gradually increase the force symmetrically on the tight. Do not twist the screws once in place, screw the diagonal screws in several times, gradually increase the force symmetrical tightening screws do not twist once in place
4、Check the gas tightness, check whether the valves (solid feeding port, kettle cover exhaust valve, air inlet valve, etc.) are screwed tightly (just eat the force, don't use too much force, check the stirring switch of the autoclave controller, speed control heating switch to zero, and then turn on the control don't use too much force) don't use too much force to make the box power and its display switch.
5. Connect the nitrogen cylinder to the autoclave inlet through the conduit and tighten the relevant screws. Open the main valve of the nitrogen cylinder and the pressure divider valve, first adjust the pressure of the pressure divider valve to the pressure required for the experiment, then open the inlet valve of the autoclave, make the gas slowly fill into the reactor, when the pressure value displayed in the reactor is the same as the pressure set on the nitrogen cylinder and no longer changes, close the inlet valve of the reactor and the outlet valve of the nitrogen cylinder in order, record the pressure value displayed in the reactor, and observe whether there is any change in the pressure after half an hour.
Nowadays, autoclave can be used in petroleum industry, chemical industry, rubber industry, pesticide industry, dye industry, pharmaceutical industry and food industry, etc. In these industries, the equipment can carry out some hydrolysis reaction, neutralization reaction, crystallization reaction, distillation reaction, steam reaction, polymerization reaction and various kinds of constant temperature reaction, etc. Of course, it can also be said that the reactor is a kind of equipment container that can carry out comprehensive reaction.
Because of the design of the main structure and the configuration of the accessories according to the actual needs, this equipment can carry out all the reaction steps of the materials from the beginning to the end of the reaction according to the pre-set reaction; in addition, it can control the reaction of the materials throughout the equipment. It can also strictly control the important parameters such as temperature, pressure, stirring and material concentration in the reaction, so that the whole reaction process is more reasonable and adequate.
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