How to improve the self-priming pump self-priming ability and the time

self-priming centrifugal pump with general difference can self-priming centrifugal pump. Therefore, its operating characteristics are used by & other; Self-priming & throughout; The decision. Open the discharge valve must start self-priming water pump suction pipe in the gas, want to rely on self-priming pump away after starting, so you must open the valve started, quickly from discharging mouth eduction. Self-priming pump cavity to have enough liquid self-priming centrifugal pump chamber without liquid, cannot form the mixture of gas and liquid foam, nor extraction. Too little self-priming pump cavity is also not the extraction effect. Figure 2 - 14 is self-priming centrifugal pump self-priming pump chamber in the process of extraction of liquid circulation.

figure 2 14 self-priming centrifugal pump in the process of the extraction liquid in the pump cycle is

of a self-priming centrifugal pump experiments showed that the extraction ability and the closely related to how much of the liquid in the pump. When the liquid in the self-priming pump is less than 1. 5 l, the vacuum degree is small, and within the pump working condition instability, air leakage into the pump, circulation will interrupt, not continuous extraction; Water pump in germanium is greater than 2. OL, backwater block under the tongue, not leak air pump, continuous extraction for the first time at this point. With vacuum pump in the liquid storage volume increases. When high diamond self-priming pump suction fluid amount up to 3. 5 l, the vacuum degree can be up to 9 m; Liquid storage quantity is greater than 3. 5 l, the vacuum degree increase with the increase of the amount of liquid storage speed slow, as shown in figure 2-3 15. The reservoir volume 3. 5 l is most appropriate.

in order to ensure the speed and reliability of the extraction, should start in the pump cavity filling and plenty of fluids.

the self-priming pump under different rotation speed self-priming vacuum - as shown in figure 2 16. From the figure, the speed n had a great influence on the vacuum absorption, until the influence of the rotational speed is close to the ultimate vacuum. When pump self-priming prime mover speed shall be transferred to the high speed, so as to shorten the self-priming time.

conveying liquid water is usually choose self-priming centrifugal pump, the pump self-priming height only 5 meters, and how to improve the self-priming ability of self-priming pump can also use high self-priming pump suction to increase the ability of self-priming pump self-priming

conveying liquid water is usually choose self-priming centrifugal pump

need less traffic head can choose: small self-priming pump

if you use the environment or the delivery is flammable and explosive liquid suggested use: explosion-proof self-priming pump

the self-priming pump technical articles keywords: how to improve the self-priming pump, self-priming time, how to improve the self-priming ability of self-priming pump