High-strength reciprocating hydraulic diaphragm pump diaphragm

Abstract

The invention relates to a high-strength reciprocating hydraulic diaphragm pump diaphragm. T he high-strength reciprocating hydraulic diaphragm pump diaphragm comprises a fixing ring and a bidirectional sealing diaphragm. The bidirectional sealing diaphragm is coaxially vulcanized on the inner ring wall of the fixing ring. The bidirectional sealing diaphragm comprises an expansion ring film, a veneering sealing film and a reinforcing ring film. The cross section of the expansion ring film is arc-shaped. The arc-shaped lower surface of the expansion ring film is uniformly provided with a plurality of arc-shaped reinforcing strips at intervals. The veneering sealing film is radially inwards arranged on the inner sidewall of the expansion ring film. The reinforcing ring film is integrally formed on the upper surface, located at the joint of the expansion ring film and the veneering sealing film, of the veneering sealing film. According to the high-strength reciprocating hydraulic diaphragm pump diaphragm, the arc-shaped reinforcing strips are uniformly arranged on the inner surface of the expansion ring film at intervals, the expansion deformability of the expansion ring film is greatly improved, the restorability of the diaphragm is improved, and the service life of the diaphragm is prolonged.

Description

technical field [0001] The invention belongs to the technical field of hydraulic diaphragm pumps, and relates to a diaphragm, in particular to a diaphragm for a high-strength reciprocating hydraulic diaphragm pump. Background technique [0002] Due to the characteristics of high pressure, high efficiency, energy saving, no leakage, zero pollution, long life, and high reliability, hydraulic diaphragm pumps are widely used in various industries such as petroleum, chemical industry, food, medicine, electric power, and water treatment. Quantitative delivery of flammable, explosive, toxic, corrosive or non-corrosive media. The hydraulic diaphragm pump uses a rubber diaphragm to separate the conveying medium from the driving medium (oil). The reciprocating motion of the piston acts on the rubber diaphragm through the transmission of the oil medium, making the rubber diaphragm concave and convex, and completing the suction and discharge of the slurry. This kind of pump not only pr...

AI Technical Summary

Problems solved by technology

At present, the commonly used shape of the rubber diaphragm is a circular flat diaphragm, among which, the plunger, the circular flat diaphragm, in the actual use process, the outer round edge of the circular flat diaphragm is fixed, the inner side of the diaphragm is flexed and deformed front and rear, and the size of the front and rear deflected deformation It is related to the size of the deformation stress. If the deflection deformation is too large, the stress generated by the diaphragm is also large. The stress of the circular flat diaphragm reaches the maximum at the edge of the diaphragm and the middle of the circle, so the stress of the diaphragm is prone to concentration and stress. Large fluctuations, resulting in a relatively short diaphragm life

In addition, the radial dimension of the circular flat diaphragm is too large, resulting in a lot of consumables, and there is no installation slot on the circular flat diaphragm, which is inconvenient for installation and maintenance

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