Due to improper installation or use for a long time and other reasons, has lead to centrifugal pump malfunctions in our daily work, we have the following two sides to find methods for centrifugal pump break down:
In the early time, we still need to rummage methods for centrifugal pump break down.
① Static ring seal face leakage. Check whether the surface is flat, the roughness of surface can meet the requirements, the installation is in place, there is particulate matter in the end tip or not.
② Compensating ring seal leakage. Check the gland deformation, install it correctly, seals meets quality requirements.
In addition, there are some common methods for centrifugal pump break down, as follows:
① Check the installation of the sealing surface of the gap distance meets the requirements.
② Observe the liquid medium is expanded.
③ Check the liquid medium lubricity.
④ When using, but also to observe the sealing fluid sieve plate or filter clogging.
The above methods for centrifugal pump break down for the initial use of centrifugal pump maintenance is necessary.
(2) Long-term use
For long-term use of centrifugal pump, there will be more problems. Thus, seek out methods for centrifugal pump break down is also very necessary.
① Insufficient flow centrifugal pump casing. Typically methods for centrifugal pump break down includes check system pressure and fluid level;
② Increased resistance loss. You need to check the check valve or piping and associated equipment, such as stack sizer whether there is an obstacle;
③ Other parts of the leakage. Check the seal and other parts;
④ Pump is jammed. Using couplings to check and eliminate movement part;
⑤ Lift is not enough. Check the impeller is installed correctly;
⑥ Bearing fever. Re-repair or replace the bearing pads;
Centrifugal pumps after a long-term use, there will be a number of other problems, but smaller probability of these problems, we should also use the appropriate methods for centrifugal pump break down.
① Don’t lose centrifugal liquid. This often occurs after long-term use of centrifugal pump, requiring special attention. These methods for centrifugal pump break down contains re- filled with liquid, while excluding air and repair leaks out and re- poured the liquid to the pump.
② Centrifugal pump current is too large. When this occurs, firstly loosen the packing gland, check the cause of the malfunction and eliminate mechanical friction.
③ Centrifugal pump vibrations and noises. First of all, need to check whether the motor shaft coaxial with the shaft, if not, adjust the height of two to maintain the same height. Thereafter, repair the impeller, tighten the foundation bolts and then adjust the outlet valve.
Of course, since the internal structure of the centrifugal pump is complex, there will be other problems when we use, if can not solve the problem yourself, you should promptly seek help from producers to find methods for centrifugal pump break down.