Durable dual-channel corrosion-resistant diaphragm pump

Abstract

The invention discloses a durable dual-channel corrosion-resistant diaphragm pump. On the premise that the flow is not influenced, inlet liquid and outlet liquid are discharged through two channels, so that the size of valve blocks is reduced, and the cost is reduced; meanwhile, the inlet liquid and the outlet liquid are discharged from the two sides of the valve blocks, so that the impact of theinlet liquid and the outlet liquid on the valve blocks is reduced, and the service life of the valve blocks is prolonged. According to the adopted technical scheme, liquid inlet, outlet pipelines, liquid inlet, outlet flow channels are double channels, each of the upper side of a valve lower plate and the lower side of a valve upper plate is provided with two concave bellmouths, and the concave bellmouths of the valve lower plate and the valve upper plate are matched and correspond to form a liquid inlet cavity and a liquid outlet cavity; the tail end of the liquid inlet pipeline and the tailend of the liquid inlet flow channel communicate with the liquid inlet cavity, and the tail end of the liquid outlet pipeline and the tail end of the liquid outlet flow channel communicate with the liquid outlet cavity; and the two valve blocks are correspondingly arranged in the liquid inlet cavity and the liquid outlet cavity, the valve block of the liquid inlet cavity is fixed to the bottom faces of the concave bellmouths of the valve upper plate through a valve block pressing rod and press the liquid inlet pipeline, and the valve block of the liquid outlet chamber is fixed on the bottom surfaces of the concave bellmouths of the valve lower plate through a valve block pressing rod and press the liquid outlet flow channel.

Description

technical field [0001] The invention relates to a durable double-channel corrosion-resistant diaphragm pump, which belongs to the technical field of diaphragm pumps. Background technique [0002] The inflow and outflow of existing diaphragm pumps all belong to a single channel structure, and the inflow and outflow directly open the middle of the valve plate for circulation, which is easy to cause breakdown and damage to the diaphragm, and the valve plate of the diaphragm pump has poor corrosion resistance. Corrosive media are not compatible, and the replacement of diaphragm pumps with corrosion-resistant material valve plates is expensive due to the high cost of corrosion-resistant material valve plates, short life, and high replacement costs. Contents of the invention [0003] The invention overcomes the shortcomings of the prior art and provides a durable double-channel anti-corrosion diaphragm pump. On the premise of not affecting the flow rate, the liquid in and out is...

AI Technical Summary

Problems solved by technology

[0002] The inflow and outflow of existing diaphragm pumps all belong to a single channel structure, and the inflow and outflow directly open the middle of the valve plate for circulation, which is easy to cause breakdown and damage to the diaphragm, and the valve plate of the diaphragm pump has poor corrosion resistance. Corrosive media are not compatible, and the replacement of the diaphragm pump with corrosion-resistant material valve plate, due to the high cost of corrosion-resistant material valve plate material, short life, high replacement cost

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