Sealing pig's maintenance method
Sealing pigs are a type of oil pipeline cleaning equipment that plays a large role in oil pipeline cleaning. In order to improve the efficiency of pipeline cleaning, it is often necessary to maintain and overhaul the equipment. So how do you need to maintain the Sealing pig? Next, the editor will explain in detail how to maintain the Sealing pig. I hope it will help everyone. The maintenance method for sealing pigs is described below.
1. When installing Sealing pigs, pay attention to the explosion-proof distance. Many sets of Sealing pig equipment need to be placed separately to ensure good ventilation.
2. when choosing the heat transfer oil must choose the corresponding model, and can not have moisture to join.
3. After installing the Sealing pig, first carry out nitrogen pressure to ensure that there is no leakage before starting work. If any leaks are found, use soap foam to find the nozzle and pipeline leakage points. After finding the leak point, let go of the gas and tighten it, and then hold the nitrogen pressure.
4. Metal rupture discs cannot be adjusted at will. After the metal rupture disc is blasted, a new metal rupture disc needs to be replaced. When replacing the metal rupture disc, pay attention to the convex surface of the rupture disc.
5. When cooling down, use water for internal cooling, avoid rapid cooling, to prevent excessive temperature difference, resulting in cracks in the cooling coil and the kettle body. During the working process, the temperature inside the Sealing pig is higher than 100 °C. The water jacket and magnetic stirrer between the kettle lids need to pass cooling water, and the water temperature is less than 35 °C to prevent the magnetic steel from demagnetizing.
6. After the reaction is completed, cool down and cool, and discharge the gas in the kettle to the outside through the pipeline to reduce the pressure inside the Sealing pig to normal pressure. Be careful not to remove it with pressure. Then loosen the main bolt and nut, remove the kettle lid and place it on the bracket. Pay attention to protect the sealing surface when removing the cover.
7. After the operation is completed, the inside of the kettle should be cleaned. Use the cleaning solution to remove the Sealing pig and sealing surface residue. It should be cleaned and kept clean. It is forbidden to clean with rough surface.
8. Always pay attention to the working condition of the whole equipment and the reducer of the Sealing pig, and replenish the lubricating oil in time.
9. When using Sealing pigs, close the refrigerant inlet valve, put out the refrigerant in the pot and the jacket, then input the material, open the stirrer, then turn on the electric heating power and steam valve to close when the required temperature is reached, then close the stirring. Device. After the end, drain the remaining condensed water in the pot and the jacket, rinse off the material with warm water, and then wash it thoroughly on the inner wall of the container with alkaline water. In the case of an empty pot, the steam valve and the electric heating source must not be turned on, and the steam pressure does not exceed the rated working pressure.
10. Replace the electric heating medium oil every half a year.
11. When not using Sealing pigs, always wash the pot and clean the inner and outer walls of the container with warm water to keep it clean and make the equipment more durable.
12. Regularly check the safety valve, distillation hole, electric heating rod, pressure gauge and electrical instrument of the jacket and the lid, and find that there is a fault and timely repair.
The above is about the maintenance method of Sealing pigs. I hope everyone can understand the maintenance methods of Sealing pigs and it will help everyone.
