Generally portable Pump filter is filled with liquid during use, and when used, the pump switch can be turned on and the liquid can be ejected. The pump is usually stored in various places. Its sealing is very good, basically no accidents, almost no air leakage. However, whether it leaks can not be determined by direct observation, so we can only check whether it leaks by the following methods:
(1) Duck hair method: Find a piece of duck hair, close to the suspicious air intake while running portable Pump Filter, and observe the floating condition of the duck hair. You can also use a lit cigarette and follow this procedure. Air leakage can be determined by the direction of fluff and smoke.
(2) Oil method: Sometimes the intake point is really not easy to find, can be coated with a little oil in the inlet part, if the oil is quickly sucked away, is the intake. Suspicious judgment of air leakage, this time to do a good seal.
Fire pump leakage, using the above method can be tested. Once the pump leaks, the danger is also very big, so before using, remember to check whether the pump leaks.
Fire pump is mostly used in fire rescue, but do you know that he will leak? There are several situations that lead to leakage, but their treatment methods are not the same, and different reasons should be analyzed in detail.
1, the installation of static test leakage: such as small leakage, mostly for the problem of moving ring or static ring sealing ring: when the leakage is large, it shows that there is a problem between the friction pair of dynamic and static rings. On the basis of preliminary observation of the leakage and judgment of the leakage position, and then manual observation, if there is no significant change in the leakage, static and dynamic ring sealing ring problems: static and static ring friction pair problems; Moving ring sealing ring problems, static ring sealing ring failure and other problems.portable pump filter manufacturers
2. The sudden leakage of fire pump in normal operation is mostly caused by the large change of working conditions or improper operation and maintenance. Vacuuming, cavitation or longer time pressure holding, resulting in seal damage; Pump actual output is small, a large number of medium pump circulation, heat accumulation. Cause the medium gasification, resulting in seal failure; For a long time outage, restart without manual car, friction pair due to adhesion and tear sealing surface; Corrosive, cohesive and gelling substances in the medium increase; The ambient temperature changes rapidly.
3, the leakage of the test run: after the static test of the mechanical seal of the fire pump, the force generated by the high-speed rotation during the operation will inhibit the leakage of the medium. Therefore, the exclusion of seal failure between shafts and end caps is basically caused by damage to the friction pair of dynamic and static rings. Most need to be reassembled, replace the seal.
According to the above leakage, the fire pump should take corresponding solutions according to the specific reasons, not just minor repairs, reluctantly let the fire pump for a period of time, such as the occurrence of big problems will cause unnecessary losses.
Post time: Jun-07-2022