Pneumatic chemical pump

Abstract

The invention provides a pneumatic chemical pump, belongs to the technical field of water pumps, and solves the technical problems of a traditional chemical pump incapable of normally working under liquid and the like. The pneumatic chemical pump comprises a main shaft, a bracket and an impeller; the impeller is fixedly arranged at one end of the main shaft; a pump shell, an isolation sleeve and an isolation piece sleeve the main shaft in sequence; the pump shell is fixedly arranged in the bracket; the isolation sleeve is fixedly arranged on the pump shell; the isolation piece is fixedly arranged on the isolation sleeve, and forms a closed cavity with the bracket; an exhaust pipe, communicating with the cavity, is fixedly arranged at the upper part of the bracket; an intake pipe, communicating with the cavity, is fixedly arranged at the lower part of the bracket; the intake pipe is connected with an air pump through an air pipe; an air wheel, positioned in the cavity, is fixedly arranged on the main shaft; the air wheel is provided with multiple wheel blades arranged around the axis at equal intervals; air storage cavities are formed in the wheel blades; the wheel blades are provided with intake ports communicating with the air storage cavity; and the intake ports are arranged on the peripheral surface of the air wheel. The pneumatic chemical pump has the advantage of normal operation under liquid.

Description

technical field [0001] The invention belongs to the technical field of water pumps, in particular to a pneumatic chemical pump. Background technique [0002] Before starting the pump, the suction line and the pump must be filled with liquid. After the pump is turned on, the impeller rotates at high speed, and the liquid in it rotates with the blades. Under the action of centrifugal force, it flies away from the impeller and is ejected outward. The ejected liquid gradually slows down in the diffusion chamber of the pump casing, and the pressure gradually increases. Outlet, the discharge pipe flows out. At this time, a vacuum low-pressure area with neither air nor liquid is formed at the center of the blade due to the liquid being thrown around. The liquid in the liquid pool flows into the pump through the suction pipe under the action of the atmospheric pressure on the pool surface, and the liquid is thus continuous. It is continuously sucked up from the liquid pool and con...

AI Technical Summary

Problems solved by technology

[0003] When the existing chemical pumps are in use, the suction pipe and the pump must be filled with liquid, which is inconvenient during operation, especially when the chemical pump needs to be in a low well or workers cannot fill the suction pipe and pump with liquid. For workers in this technical field, it is necessary to design a chemical pump that can work under liquid

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