Alternate gas distribution method of a bidirectional pneumatic diaphragm pump

Abstract

The invention provides an alternative distribution method of a dual-way pneumatic diaphragm pump. The method comprises the steps that firstly, a user inserts the input end of a liquid inlet pipe in apipeline part into a source of a stock solution to be pumped, and the output end of a liquid draining pipe points to the discharge point; a distribution mechanism receives high-pressure gas of the source, the high-pressure gas is injected into a first cavity from a first valve, the first cavity is increased, a second cavity is decreased, the interior of a first diaphragm cavity on the left side isconverted into negative pressure, the stock solution is sucked in, a distribution mechanism injects the high-pressure gas into the second cavity through a second valve, the second cavity is increased, the first cavity is decreased, the diaphragm compresses the first diaphragm cavity with the stock solution sucked in, and the stock solution in the first diaphragm cavity is discharged; finally, areversing mechanism drives a distribution disc to rotate step by step, a first distribution opening alternatively communicates with a first air inlet abut-joint hole and a first exhaust abut-joint hole, a second distribution opening alternatively communicates with a second air inlet abut-joint hole and a second exhaust abut-joint hole, and meanwhile, a distribution cavity alternatively communicates with the first distribution opening and the second distribution opening.

Description

technical field [0001] The invention relates to a diaphragm pump, in particular to an alternate air distribution method of a bidirectional pneumatic diaphragm pump. Background technique [0002] Pneumatic diaphragm pump is a new type of conveying machinery. It is the most novel type of pump in China. It uses compressed gas as the power source. For various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, violent Toxic liquids can be exhausted. Pneumatic diaphragm pumps use NBR, neoprene, fluorine rubber, polytetrafluoroethylene, and polytetrafluoroethylene according to different liquid media to meet the needs of different users. In various special occasions, it is used to pump various media that cannot be pumped by conventional pumps, and has achieved satisfactory results. However, the current pneumatic diaphragm pump has complex gas distribution principles, difficult maintenance and low suction efficiency. In order to overcome the above problem...

AI Technical Summary

Problems solved by technology

[0002] Pneumatic diaphragm pump is a new type of conveying machinery. It is the most novel type of pump in China. It uses compressed gas as the power source. For various corrosive liquids, liquids with particles, high viscosity, volatile, flammable, violent Toxic liquids can be exhausted. Pneumatic diaphragm pumps use NBR, neoprene, fluorine rubber, polytetrafluoroethylene, and polytetrafluoroethylene according to different liquid media to meet the needs of different users. In various special occasions, it is used to pump various media that cannot be pumped by conventional pumps, and has achieved satisfactory results. However, the current pneumatic diaphragm pump has complex gas distribution principles, difficult maintenance and low suction efficiency. In order to overcome the above problems Disadvantages, the inventor designed an alternate gas distribution method of a two-way pneumatic diaphragm pump with ingenious structure, simple principle, easy maintenance and high suction efficiency

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