Shanghai Yiling series self-priming pump can be lubricated with high-quality calcium-based butter and No. 10 oil according to the working condition of the pump. If the pump is lubricated with grease, the grease should be regularly added to the bearing housing. If the oil is lubricated with oil, the pump should be oiled. Insufficient position is added.
First, the preparation of the self-priming pump before starting has inspection work
1. Shanghai Yiling series self-priming pump can be lubricated with high-quality calcium-based butter and No. 10 oil according to the working condition of the pump. If the pump is lubricated with grease, it should be regularly filled with grease into the bearing housing. If the oil level is insufficient, increase it.
2. Check whether the liquid in the pump casing of the self-priming pump is higher than the upper edge of the impeller. If it is insufficient, the liquid can be directly injected into the pump from the filling port on the pump casing, and should not be in the case of insufficient liquid storage. Start running, otherwise it will not work properly, and it is easy to damage the mechanical seal.
3. Check if the rotating parts of the self-priming pump have a card bit collision phenomenon.
4. Check if the self-priming pump body foot and the joint nut are loose.
5. Check the coaxiality and parallelism between the pump shaft of the self-priming pump and the motor shaft.
6, check the self-priming pump inlet pipe is leaking, if there is a leak, you must try to eliminate.
7. Open the valve of the suction line and open the valve slightly (not fully open).
Second, self-priming pump starting and operation
1. Jog the self-priming pump to pay attention to whether the steering of the pump shaft is correct;
2. Pay attention to the abnormal sound and vibration when turning;
3, pay attention to the pressure gauge and vacuum gauge readings, after the start of the pressure gauge and vacuum gauge readings after a period of fluctuations indicating stable, indicating that the pump has been into the normal infusion operation.
4. Pay special attention to the increase of water temperature inside the pump before the pump enters the normal infusion operation. If the process is too long and the water temperature in the pump is too high, stop the pump and check the cause.
5. If the liquid temperature in the pump is too high and the self-priming difficulty can be temporarily stopped, use the liquid in the discharge pipe to flow back into the pump or add the liquid storage port to the pump body to directly add liquid to the pump to cool the liquid in the pump. Then start it.
6. If the pump has strong vibration and noise during the working process, it may be caused by cavitation of the pump. There are two reasons for the cavitation: one is that the inlet pipe flow rate is too large, and the other is that the suction stroke is too high. The flow rate is too large. The outlet control valve can be adjusted to raise the reading of the pressure gauge. When the inlet pipe is blocked, it should be removed in time; when the suction stroke is too high, the installation height of the pump can be appropriately reduced.
7. The self-priming pump stops the pump during the working process. When the restart is required, the outlet control valve should be slightly opened (not fully closed), which is beneficial to the gas from the discharge port during the self-priming process and ensures that the tip is lighter. Under the responsibility of starting. http://NewsDetail312T2.html
China Hardware Business Network http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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