How to repair the shaft of multi polar centrifugal pump?
5, when the pump is disabled, first slowly close the valve on the drain line, turn off the vacuum meter cock, and stop the motor, then close the pressure gauge cock.6, such as long-term pump stop, should be removed pump body, pump parts of water wipe dry, and in the sliding surface coated with antirust oil properly preserved.7, pump running should always check the water pump and motor bearing temperature, shall not exceed the outside temperature of 35 degrees, and its limit temperature shall not be greater than 75 degrees.8, in the bearing body often should pay attention to refueling.9, at any time to adjust the degree of tightness of the packing gland, normal water leakage is appropriate to drip.10, if noise or abnormal sound during the operation, should stop the inspection immediately.
1. Drive water into the pump or water with a vacuum pump before driving.2. Close the valve on the spit pipe and the pressure gauge cock.3. Start the motor and turn on the pressure gauge cock.4, when the pump runs at normal speed, the pressure gauge shows the appropriate pressure, and then open the vacuum meter cock, and gradually open the drain valve on the pipe, until the end
General principle and ground centrifugal multistage centrifugal pump pump, when the impeller rotates at a high speed motor drive shaft, full of liquid in the impeller under the action of centrifugal force from the impeller center along the flow between the leaves thrown to the impeller around, because the liquid by blade, and make the pressure speed increases at the same time, through the channel guide shell is guided to a secondary impeller, is this principle, successive through all of the impeller and the guide shell, further increase liquid pressure energy. After each impeller is continuously stacked, a certain lift is achieved and the liquid is lifted to the ground.
The axial thrust of the multistage centrifugal pump is adjusted to meet the requirements of the clearance of the balance disc in the drawing, so that the pump works under the design of axial force.
