First of all, the user should check the oil level frequently, and adjust it to meet the requirements if it does not meet the requirements. When the vacuum pump is running, the oil level shall be up to the center of the oil mark. Check the oil quality frequently, replace the new oil in time in case of oil deterioration, and ensure the vacuum pump works normally. The oil change period shall be considered according to the actual use conditions and whether it can meet the performance requirements, etc., which shall be determined by the user at his discretion. General new vacuum pump, when pumping clean and dry gas, it is recommended to change oil once in about 100 hours. After no ferrous metal powder can be seen in the oil, the oil change period can be appropriately extended in the future.
Generally, the vacuum pump shall be overhauled after 2000 hours of operation to check the aging degree of rubber seal, check whether the exhaust valve plate is cracked, and clean the dirt deposited on the valve plate and exhaust valve seat. Clean the parts in the whole vacuum pump, such as rotor, spinner, spring, etc. It is usually washed with gasoline and dried. Clean rubber parts and dry them with dry cloth. When cleaning and assembling, handle with care to avoid damage.
If possible, the pipe shall also be cleaned to ensure that the pipeline is unblocked.
After reassembling the vacuum pump, the test run shall be carried out. Generally, the vacuum pump shall be idle for 2 hours and the oil shall be changed for two times. Because there will be a certain amount of volatile matters left in the vacuum pump during cleaning. After normal operation, the vacuum pump shall be put into normal operation again, and the pipeline and joint of the vacuum pump shall be checked for looseness. Turn the vacuum pump by hand to see if it is flexible. Add bearing lubricating oil into the bearing, observe that the oil level should be at the center line of the oil mark, and replace or supplement the lubricating oil in time.
At the beginning of use, close the gate valve, outlet pressure gauge and inlet vacuum gauge of the water outlet pipe, jog the motor, and try to see whether the motor rotation is correct. Start the motor. When the vacuum pump is in normal operation, open the outlet pressure gauge and the inlet vacuum pump. Gradually open the gate valve and check the motor load after the appropriate pressure is displayed. Try to control the flow and head of the vacuum pump within the range indicated on the label to ensure that the vacuum pump operates at the highest efficiency point, so as to achieve the maximum energy saving effect. During the operation of vacuum pump, the bearing temperature shall not exceed the ambient temperature of 35C, and the maximum temperature shall not exceed 80C. In case of any abnormal sound of vacuum pump, stop the pump immediately and check the cause.
To stop using the vacuum pump, first close the gate valve and pressure gauge, and then stop the motor. In the first month of operation, the vacuum pump changes the lubricating oil after 100 hours, and then every 500 hours. Adjust the packing gland frequently to ensure that the leakage in the packing chamber is normal (it is better to leak out in drops). Check the wear condition of the shaft sleeve regularly, and replace it in time when the wear is large. When the vacuum pump is used in cold winter, it is necessary to unscrew the drain plug at the lower part of the pump body to drain the medium after stopping. Prevent frost cracking. If the vacuum pump is out of service for a long time, it is necessary to disassemble the pump completely, dry the water, coat the rotating parts and joints with grease, and properly store them.
Liquid Ring Vacuum Pump
Roots Vacuum Pump
industrial vacuum pumps,vacuum furnaces
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