Novel three-cylinder single-action diaphragm pump fluid end

Abstract

The invention discloses a novel three-cylinder single-action diaphragm pump fluid end, belongs to the technical field of diaphragm pumps, and particularly relates to a novel structure of a supercritical high-pressure three-cylinder single-action diaphragm pump fluid end. The diaphragm pump fluid end is suitable for supercritical high-pressure fluid conveying. The diaphragm pump fluid end comprises a base, a diaphragm pump body is arranged on the base, and the diaphragm pump fluid end is characterized in that the middle and the two sides of the diaphragm pump body are each provided with a diaphragm chamber, the three diaphragm chambers form an isosceles triangle, and the diaphragm chamber in the middle serves as the vertex of the isosceles triangle; and the diaphragm axes of the diaphragm chambers on the two sides are in the same straight line, and the diaphragm axis of the middle diaphragm chamber is perpendicular to the diaphragm axes of the diaphragm chambers on the two sides.

Description

technical field [0001] The invention belongs to the technical field of diaphragm pumps, and in particular relates to a new structure of a fluid end of a supercritical high-pressure three-cylinder single-acting diaphragm pump. Background technique [0002] The liquid end of the diaphragm pump is one of the main components of the large-scale high-pressure three-cylinder single-acting diaphragm pump, which undertakes the core function of solid-liquid two-phase fluid transportation. In terms of critical working conditions, the geometry and layout of the key components of the fluid end play a vital role in the safety and stability of the diaphragm pump user's on-site machine operation. [0003] With the continuous development of diaphragm pump technology, the application fields and operating conditions of diaphragm pumps have gradually expanded and extended. The research and development of supercritical high-pressure diaphragm pumps that meet long-distance pipeline transportation...

AI Technical Summary

Problems solved by technology

[0004] The key parts of the hydraulic end of the traditional three-cylinder single-acting diaphragm pump are all made of cast alloy steel, which has been difficult to meet the operation requirements of supercritical high-pressure slurry in terms of structural strength, not only difficult to guarantee the vulnerable spare parts in the liquid end of the diaphragm pump ( Such as the service life of the valve cone, valve seat, and diaphragm), and the safety of the whole machine is low, and the casting defects and stress concentration at a certain position of each single piece may become potential hidden dangers causing major safety accidents

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