一failure: not output liquid pump.
二, the reason:
(1) inside the pump and suction tube with gas;
(2) in the suction pipe pressure is less than or close to the vaporization pressure;
(3) pipeline leak;
(4) speed too high or too low;
Device (5) the total head is not in conformity with the pump head;
(6) the proportion of medium is different from the original design,
(7) inside the pump or line with sundry jam.
三, the solution:
(1) to pump priming, expulsion of air;
(2) reduce installation height, reduce the suction resistance, increasing the inlet pressure;
(3) check and tighten the;
(4) according to the performance points to determine the speed;
(5) managed to reduce the resistance of the spit out system;
(6) should be reduced,
(7) check and clean up. |