What are the adverse effects of idling filter press pumps
The damage and cost of the filter press pump to the air will be great. The idling of the filter press pump caused damage to multiple parts, one pump body, inner magnet, outer magnet, impeller, isolation sleeve, thrust ring, etc. In the process of using the filter press pump, idling is the cause of many failures, so it is necessary for users to understand that the filter press pump is not idle. The main reasons are as follows:
1. After the pump is empty, there is no data to cool the pump, so it is possible to directly burn the barrier.
2. The filter press pump cannot be idling, because the filter press pump of the magnetic cylinder is composed of a cooling medium. It is assumed that air will cause the magnetic cylinder to lock.
3. The central part of the filter press pump is the external magnetic component and the internal magnetic component. Assuming idling, the central component will be demagnetized at high temperature and the performance of the filter press pump will be greatly reduced after demagnetization.
4. The bearings of the filter press pump rotor are mostly made of hard alloy, which is smooth by the medium, and the pump cannot be smooth.
In addition, in order to ensure the stability of the filter press pump, punctual maintenance of equipment is also a way to reduce the failure rate of equipment, including:
1. There are two ball bearing housings, one ball bearing on the pump impeller side of the transported heat transfer oil smooth filter press pump, and one ball bearing on the coupling side is smoothed with high temperature smooth grease: each ball bearing After 3000 hours of operation, it is necessary to remove and clean the diesel engine for inspection. If the contact surface is damaged, it is necessary to replace a new bearing. When the ball bearing equipment is on the side of the impeller, the side of the dust cover should be opened before the equipment on the impeller and filled with heat transfer oil.
2. The front end of the pump shaft of the filter press pump is equipped with a stuffing box, and the sealing function is reliable. At the same time, a mechanical sealing device is installed on the bearing seat so that there will not be a lot of leakage. A few leakages are discharged through the leakage opening. It is normal for a few leakages at the beginning of the starting operation. After the internal sealing operation is required, leakage will occur. Reduce or discontinue.
3. The filter press pump should not be less than 30% of the continuous operation under the design flow. Assuming it is necessary to operate under this premise, the bypass pipe should be installed at the outlet, and the flow rate will reach the minimum.
4. Pay attention that there is no noise when the filter press pump is working. If it is found to be in a normal state, it should be dealt with in time.
5. Check the looseness of the anchor bolts, whether the temperature of the pump casing of the stainless steel filter press pump matches the inlet temperature, the fluctuation of the outlet pressure gauge and the vibration of the pump.