Ultrahigh pressure three-plunger water pump

An ultra-high pressure and plunger technology, applied in the direction of pumps, multi-cylinder pumps, liquid displacement machinery, etc., can solve problems such as water leakage, poor sealing, and low work efficiency, and achieve improved service life, long service life, and self-lubricating Good effect

Inactive Publication Date: 2013-09-25
SHANXI FANGSHENG HYDRAULIC MECHANICAL & ELECTRICAL EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It solves the problems of poor sealing, serious water leakage and low working efficiency of existing high-pressure plunger pumps

Method used

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  • Ultrahigh pressure three-plunger water pump

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Embodiment Construction

[0011] The invention points of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] The technical solutions adopted by the present invention to solve the technical problems are as follows: 1. A combined seal with a special structure is installed between the ceramic plunger 10 and the cylinder 22. The seal is composed of a four-layer sponge-type ceramic spacer 25 and a three-layer ultra-high molecular PE (polymer polyethylene board) sealing body 24. The sealing body has high mechanical strength, low thermal expansion coefficient, excellent self-lubrication and good self-cooling effect, thereby ensuring a long service life and good sealing characteristics. 2. Both the suction valve plate 8 and the drain valve plate 7 are made of heat-resistant stainless steel substrate, ceramic plated on the surface, and precision ground structure. This type of valve disc has excellent wear resistance and minimal thermal deformation, has g...

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Abstract

An ultrahigh pressure three-plunger water pump includes a plunger seal, a suction valve and a drain valve, wherein the plunger seal adopts the alternated combined seal of a supra polymer PE seal body and a sponge body ceramic cushion block structure; the combined seal consists of four ceramic cushion blocks and three seal bodies; the suction valve includes a suction valve body and a suction valve block; the drain valve includes a drain valve body and a drain valve block; the suction valve block and the drain valve block adopt the structure that the surface of a heat-resistance stainless base body is coated with a ceramic layer; the thickness of the ceramic layer is 0.6 mm. Compared with the prior art, the ultrahigh pressure three-plunger water pump provided by the invention has the advantages of smaller high-pressure water ripple in output, more stable water pressure, higher volume efficiency, longer service life and lower running noise; the combined seal has the characteristics of high temperature resistance, frication resistance, high mechanical strength and excellent self-lubricating performance; compared with other water pumps of the same kind, the ultrahigh pressure three-plunger water pump has the benefits that the pressure grade is improved by 50 MPa, the service life is improved by 1.3 times, the volume efficiency is improved by 5%, and the running noise is reduced by 5 db.

Description

Technical field [0001] The invention relates to an ultra-high pressure three plunger water pump. Specifically, it is an ultra-high pressure three-plunger water pump in which the plunger seal adopts a combination of ultra-polymer PE sealing body + sponge ceramic gasket, and the drain valve plate adopts ceramic plating technology on a stainless steel substrate. Background technique [0002] Ultra-high-pressure water pumps are commonly used high-pressure water power source equipment in modern industry. They are widely used in coal, mining, metallurgy, railways, machine tools, pressure testing machinery and other fields. For a long time, domestic high-pressure water pump research and development has mainly focused on transforming foreign technology, digesting and absorbing on the basis of introducing foreign technology, but has not mastered the true core technology of high-pressure water pump, especially in plunger seals, suction and drain valves. Insufficiency in technology has led...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B1/00
Inventor 郭铁虎党建军
Owner SHANXI FANGSHENG HYDRAULIC MECHANICAL & ELECTRICAL EQUIP
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