What To Do Before Starting A Self-priming Sewage Pump

CIP Return Pump adopts axial reflux external mixing, and through the unique design of pump body and impeller flow channel, it can not only do not need to install bottom valve and water diversion like general self-priming pumps, but also can absorb and discharge liquids containing large solid particles and long fiber impurities. It can be widely used in municipal sewage projects, river pond breeding, light industry, papermaking, textile, food, chemical industry, electricity, fiber, slurry and mixed suspension and other chemical media. Ideal impurity pump. Compared with similar domestic products, self-priming sewage pumps have simple structure, good self-priming performance, strong sewage discharge capacity, high efficiency and energy saving, convenient use and maintenance, and are the first domestic sewage pump series products. Various technical performance indicators are leading in China and have reached the international advanced level, with broad application market and development prospects.

Working principle of self-priming sewage pump: There is a liquid storage chamber in the pump body, which is connected to the pump working chamber through the upper reflux hole and the lower circulation hole, forming an axial reflux external mixing system of the pump. After the pump stops working, a certain volume of liquid has been stored in the pump cavity. When the pump starts, the liquid in the pump is discharged upward with air under the action of the impeller. The liquid flows back to the working chamber through the grid of the gas-liquid separation tube, and the gas is discharged outside the pump, so that a certain vacuum is formed in the pump to achieve the effect of self-priming.

Features of self-priming sewage pump

1. Strong flow capacity: The special impeller anti-blocking design ensures that the pump is efficient and non-blocking;

2. High efficiency and energy saving: The excellent hydraulic model is adopted, and the efficiency is 3-5% higher than that of the general self-priming pump;

3. Good self-priming performance: The self-priming height is 1 meter higher than that of the general self-priming pump, and the self-priming time is shorter than that of the ordinary self-priming pump.

Preparation and inspection work before starting the self-priming pump:

1. Check whether the fasteners of the connection parts such as the pump base, coupling, bearing seat are loose? If loose, tighten them.

2. Is there any phenomenon such as card or abnormal sound when turning the coupling by hand?

3. Open the water filling valve above the pump. Add no less than two-thirds of the storage water volume of the pump body and close the valve. No need to add water to start the machine in the future
4. Connect the power supply and try to rotate it. From the motor end, it should rotate clockwise. (Reverse rotation is strictly prohibited)
5. Start the machine and observe whether the pump is running normally? If there is any abnormal phenomenon, find out the cause and eliminate it.

Self-priming sewage pumps are suitable for chemical, petroleum, pharmaceutical, mining, papermaking, fiber, pulp, textile, food, power plant and municipal sewage engineering, public facility sewage, river pond breeding and other industries.