Daqing Refining & Chemical Co., Ltd. Electromechanical Instrument Factory Electrical and Mechanical Maintenance Workshop The lubricating reform of the cylinder valve of the polypropylene device has extended the life of the instrumentation equipment and ensured the safe and stable operation of the 300,000-ton/year polypropylene plant in the winter, reducing energy consumption losses by 640,000 yuan. /Time.
It is understood that the polypropylene device has four high-frequency cylinder type control switch ball valves, which have repeatedly caused the control valve to fail due to cylinder damage, resulting in shutdown of the granulation system. For this reason, the cylinder has to be replaced every 15 to 20 days. Workshop technicians repair the cylinders near the working life cycle to make the inner wall even and smooth, and add -40°C lubricating oil to the external air system to improve the lubrication and low-temperature resistance in the cylinder. Through a three-month observation operation, the modified cylinder-type control valve is stable and has not been repaired so far.
It is understood that the polypropylene device has four high-frequency cylinder type control switch ball valves, which have repeatedly caused the control valve to fail due to cylinder damage, resulting in shutdown of the granulation system. For this reason, the cylinder has to be replaced every 15 to 20 days. Workshop technicians repair the cylinders near the working life cycle to make the inner wall even and smooth, and add -40°C lubricating oil to the external air system to improve the lubrication and low-temperature resistance in the cylinder. Through a three-month observation operation, the modified cylinder-type control valve is stable and has not been repaired so far.
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