How to maintain the reaction kettle

Release time:

2026-06-04

1. Equipment location: The reaction tank should be installed in a high-pressure practical operation room that complies with explosion-proof regulations. When several reaction tanks are equipped with weapons, they should be separated and placed separately. A safety explosion-proof wall should be used to separate each two parts. Each operation room should have a safe passage and entrance to the outside. When flammable and explosive substances are stored, it is necessary to ensure good natural ventilation of the machinery and equipment.

2. After opening the packaging, check if the equipment is damaged. Install the equipment according to the model and specifications of the machine according to the framework diagram, and identify the configured components according to the shipping label. If the heating method is a high-temperature heat transfer oil electric heater, please select the corresponding model and specification of high-temperature heat transfer oil according to the application temperature (note: high-temperature heat transfer oil naturally does not allow moisture) and add it. When adding, open the oil filling port on the upper end of the jacket and the oil measuring port on the upper end of the jacket. Add oil according to the oil filling port until the oil level outlet is reached, and then tighten the oil measuring port. Do not tighten the oil filling port to prevent working pressure.

3. Installation and sealing of kettle body and kettle cover: The kettle body and kettle cover should be equipped with washers or spherical surfaces that touch the curved surface. According to the tightening of the main nut, they should be clamped together to achieve excellent sealing effect. When tightening the nut, the top angle symmetry should be gradually moved to the side several times, and the force should be evenly distributed. The kettle cover should not be tilted to one side to achieve excellent sealing effect. When tightening the main nut, the required tightening torque should not exceed 40-120N. M Scope: To prevent the sealing surface from being squeezed or overloaded, the sealing surface should be taken care of in various ways. Before each installation, use a relatively soft paper or cloth to clean the left and right sealing surfaces, and be careful not to have scars on the sealing surface of the kettle body and lid. If effective, it can be applied tens of thousands of times. After the sealing surface is damaged, it needs to be produced, processed and repaired again to achieve excellent sealing characteristics. When disassembling and assembling the kettle lid, the left and right sealing surfaces of the kettle lid should be slowly extended to avoid collision between the sealing surfaces in the middle of the kettle body and lid. If gasket sealing is used (PTFE, aluminum gasket, copper gasket, asbestos gasket, etc.), excellent sealing effect can be achieved by tightening the main nut.

4. The installation of gate valves, pressure gauges, and valves should be based on tightening the front and back nuts to achieve the actual sealing effect. The arc-shaped sealing surfaces connecting the two sides should not rotate relative to each other. When installing all screw connections, lubricating fluid or high-purity graphite mixed with fuel must be wiped to prevent them from biting. Application of gate valve: Needle valve system line seal, only need to gently rotate the valve needle, clamp the sealing surface tightly to achieve excellent sealing characteristics. It is strictly prohibited to use too much force to prevent damage to the sealing surface.

5. After installing the equipment, enter a certain amount of N2 pressure test for thirty minutes to check for any leaks. If any leaks are found, use soap foam to search for the leakage point of the pipeline or branch pipe, and tighten the exhaust gas after finding it. Then enter the N2 pressure test again to ensure no leaks and gradually resume normal operation.

6. When cooling by reducing temperature, the cooling fan coil can be internally cooled with water. Rapid cooling is strictly prohibited to prevent excessive temperature difference and stress from causing cracks in the cooling fan coil and kettle body. When the temperature inside the kettle exceeds 100 ℃ during work, the water cooler between the magnetic stirrer and the kettle cover should be circulated with cooling water to ensure that the temperature is below 35 ℃ to prevent demagnetization of the magnetic tile.

7. Safety device: Use a positive arch shaped metal material blasting disc, made of stainless steel plate, produced and manufactured according to the specification GB567-89 "Technical Conditions for Arch shaped Metal Blasting". It has been tested before leaving the factory and cannot be adjusted arbitrarily. If the engineering blasting has already been carried out and needs to be replaced again, the replacement deadline shall be determined by the application enterprise based on the specific situation of the enterprise. For those that exceed the calibrated engineering blasting working pressure of the blasting disc but have not undergone engineering blasting, replacement should be carried out. Often, it should not exceed 80% of the lower limit working pressure of the blasting disc, and attention should be paid to the convex shape of the blasting disc when replacing.

8. After the reflection is completed, first carry out cooling and temperature reduction, and then release the vapor inside the kettle into the outside through the pipeline, so that the gas pressure inside the kettle reaches natural pressure. It is forbidden to disassemble and assemble under pressure. Then loosen and remove the main anchor bolts and nuts symmetrically, and carefully remove the kettle cover (or slowly lift the kettle cover) and place it on the support frame. During the entire process of removing the cover, attention should be paid to maintaining the sealing surface.

9. Cleaning inside the kettle: After each actual operation, use cleaning solution (pay attention to preventing erosion of the main body's raw materials when using cleaning solution) to eliminate residual materials on the kettle body and sealing surface. It should be cleaned regularly and kept clean. It is not allowed to use hard chemicals or surfaces that are not smooth for cleaning.

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