How to maintain the glass reactor

Glass reactor has been widely used in petroleum, chemical, food, medicine, pesticide, scientific research and other industries The glass reactor needs to be maintained in the following aspects in daily use: (1) device place: the reaction kettle shall be installed in the high-pressure operation room meeting the explosion-proof requirements When multiple reaction kettles are equipped, they shall be placed separately Each two kettles shall be separated by a safe explosion-proof wall Each operation room shall have a channel and outlet to the outdoor When there is explosive medium, the equipment shall be well ventilated (2) after unpacking, check whether the equipment is damaged, install the equipment according to the structure drawing according to the equipment model, and check the equipped parts according to the packing list If the heating method is electric heating of heat-transfer oil, please purchase the heat-transfer oil of corresponding model according to the use temperature (Note: the heat-transfer oil is not allowed to contain water), and open the oil filler on the upper part of the jacket and the oil level on the upper part of the jacket Fill oil in through the oil filler, when the oil level is flowing; then screw the oil level, do not screw the oil filler to avoid pressure (3) installation and sealing of kettle body and lid: the kettle body and lid are in contact with the line of arc surface by gasket or cone surface, and they are compressed with each other by tightening the main nut to achieve good sealing effect When tightening the nut, it must be diagonally symmetrical and gradually tightened with multiple times of force, with even force, and the kettle cover is not allowed to incline to one side, so as to achieve good sealing effect When tightening the main nut, it shall not exceed the specified tightening torque range of 40 ~ 120N M, so as to prevent the sealing surface from crushing or overload wear Special care shall be taken for the sealing surface Before each installation, the upper and lower sealing surfaces shall be wiped clean with soft paper or cloth Special attention shall be paid not to touch the sealing surface of the kettle body and the kettle cover If it is operated reasonably, it can be used more than ten thousand times After the sealing surface is damaged, it needs to be reworked to achieve good sealing performance When removing the cover, the cover shall be lifted up and down slowly to prevent the sealing surfaces between the body and cover from colliding with each other If gasket (Teflon, aluminum gasket, copper gasket, asbestos gasket, etc.) is used for sealing, good sealing effect can be achieved by tightening the main nut (4) for the installation of valves, pressure gauges and safety valves, the sealing effect can be achieved by tightening the positive and negative nuts The arc sealing surface at both ends of the connection shall not rotate relative to each other During the assembly of all screw connections, the graphite mixed with lubricant or oil shall be applied to avoid seizure Use of valve: needle valve line seal, only slightly rotate the valve needle, compress the sealing surface to achieve good sealing performance, do not use too much force to avoid damaging the sealing surface (5) after the equipment is installed, inject a certain amount of nitrogen to maintain the pressure for 30 minutes, and check whether there is leakage If there is any leakage, please use soap foam to find out the leakage point of the pipeline and the pipe mouth, then release the gas and tighten it, and then connect the nitrogen to maintain the pressure test again to ensure that there is no leakage and then start to work normally (6) when cooling, water can be used for internal cooling through the cooling coil, and quick cooling is forbidden, so as to prevent excessive temperature difference stress from causing cracks in the cooling coil and kettle body When the temperature in the kettle exceeds 100 ℃, the water jacket between the magnetic stirrer and the kettle cover shall be provided with cooling water to ensure the water temperature is less than 35 ℃ to avoid demagnetization of the magnetic steel (7) safety device: the positive arch type metal bursting disc is adopted, which is made of stainless steel, and manufactured according to the national standard GB567-89 technical conditions for arch type metal blasting It has been tested before leaving the factory and cannot be adjusted at will If it has been blasted, it needs to be replaced again, and the replacement period shall be determined by the user according to the actual situation of the unit If it exceeds the rated bursting pressure of the bursting disc but fails to be blasted, it shall be replaced It shall not be used more than 80% of the lower limit pressure of the bursting disc, and the convex surface of the bursting disc shall be upward when replacing (8) after the reaction, firstly cool down, and then release the gas in the kettle to the outside through the pipeline to reduce the pressure in the kettle to normal pressure It is strictly prohibited to dismantle under pressure, and then loosen and dismantle the main bolts and nuts symmetrically, and then carefully remove the kettle cover (or raise the kettle cover) and place it on the bracket Pay special attention to protect the sealing surface during the process of removing the cover (9) cleaning in the kettle: after each operation, clean the residue on the kettle body and sealing surface with cleaning solution (pay attention to avoid corrosion to the main materials when using cleaning solution) Clean it frequently and keep it clean It is not allowed to clean it with hard substances or objects with rough surface.