What reason is blowdown pump lift is reduced suddenly?

The welcome visits Shandong Hairui Zhonglian Pump Industry Co. , ltd. Website, the blowdown pump that my company is a major produces manufacturer. When you need blowdown pump type selecting, we will provide the before-sales service such as price of pump of blowdown pump model, blowdown, in order to offer your referenced alternative. This product information is the knowledge that reducing suddenly about blowdown pump lift is what reason:

Blowdown pump lift is reduced, basically element of the following respects brings about:
1. electric machinery inverts
Because the reason of wiring meets those who cause electric machinery change direction,change direction with the effective demand of blowdown pump contrary, when be being started commonly so, should observe firstBlowdown pumpchange direction, if change direction,turned over, should get on column of the wiring on electric machinery two electrical wiring exchange random can.
2. impeller flow path jams
If impeller part flow path jams, the business that affects impeller, bring about outlet pressure to drop. Because this need tears open pump check,investigate cleared foreign matter. Appear again to prevent this problem, can add before blowdown pump is imported when necessary set filter device.
The leak inside 3. happening
Exceeded design range when the rotational part inside blowdown pump and stationary part clearance, will bring about interior to produce leak, reflect the discharge pressure that is pump to drop, be like the clearance between the class of pump of clearance of impeller mouth annulus, multistage. Should undertake tearing open check accordingly right now, too big to creating gap component undertakes maintaining or change.
4. entrance produces cavitation
If the pressure of air suction opening of blowdown pump is too low, send the saturated evaporate of medium steam pressure under pump, can form cavitation. Should check system of inlet tube route to have right now leave without block or entrance valve degree whether to pass small, the fluid that perhaps increases inspiratory pool height.
5. rotate speed is reduced
InfluenceBlowdown pumpThe main factor of lift is the rotate speed of impeller external diameter and pump, in other condition changeless circumstance falls, the scale of 2 Fang Chengzheng of the lift of pump and speed concerns, visible speed is very big to the influence of lift, sometimes because external some kind of reason makes the rotate speed of pump is reduced, with respect to the can corresponding lift that reduces pump. Should check the rotate speed of pump right now, if really rotate speed is insufficient, should examine a reason, reasonable solution definitely.
6. operating mode nods Xiang Daliu to measure low lift deflection
Usually, centrifugal pump has the function curve that is down continuously, discharge as lift reduce greaten gradually. In process of unit process of cargo bandling, because some kind of reason brings about pump back pressure to decrease, the job of pump nods passive ground to nod deflection to low lift large flow as device curve, can cause lift to reduce so, be like the change of device as a result of outside element and actually this is caused, do not have special relationship with pump itself. Want to increase pump back pressure only at this moment, if shut a bit export,can solve a problem a powerful person.
Thank you to be mixed to the visit of above content very much read! This information is the introduction that be being reduced suddenly about blowdown pump lift is what reason, if you still want to have farther knowledge to this problem, or want to buy this relevant product, contact personnel of my company customer service directly please, my company still produces the pump below fluid, welcome you at any time seek advice.