Working principle of booster pump

Fill the booster pump with liquid first, and then start the centrifugal pump. The impeller rotates rapidly, and the blades of the impeller drive the liquid to rotate. When the liquid rotates, it flows to the outer edge of the impeller due to inertia, and at the same time, the impeller sucks the liquid out of the suction chamber. In this process, the liquid in the impeller flows around the blade. In the circular motion, the liquid acts on the blade, which in turn acts on the liquid with a force equal to and opposite to this lift. This force does act on the liquid, making the liquid gain energy and flow out of the impeller.

The working principle of gas-liquid booster pump is similar to that of supercharger, which applies a very low pressure to a large-diameter pneumatic piston, and when this pressure acts on a small-area piston, it produces a very high pressure. The booster pump can run continuously through a two-position five-way control reversing valve. The high-pressure plunger controlled by one-way valve continuously discharges liquid, and the outlet pressure of booster pump is related to the air-driven pressure. When the pressure between the driving part and the liquid output part reaches balance, the booster pump will stop running and no longer consume air. When the output pressure drops or the pneumatic pressure increases, the booster pump will automatically start running until the pressure balance is reached again.

Full-automatic pneumatic fire fighting pressurization

A single pneumatic unbalanced valve is used to realize the automatic reciprocating motion of the pump, and the pneumatic part of the pump body is made of aluminum alloy. The liquid contact part is made of carbon steel or stainless steel according to different media. Generally speaking, a pump has two ports: an air inlet and an air outlet. The air pressure at the air inlet below normal pressure (i.e. atmospheric pressure) is called "negative pressure". It can generate air pressure higher than normal pressure at the exhaust port, which is called "positive pressure"; For example, it is often said that the vacuum pump is a negative pressure pump and the booster pump is a positive pressure pump. Positive pressure pump is very different from negative pressure pump. For example, the direction of gas flow, the negative pressure pump is the suction nozzle where external gas is sucked; Positive pressure is ejected from the exhaust nozzle; For example, the level of air pressure.