Novel balanced type water inlet and outlet valve group of ultrahigh pressure supercharger

Abstract

The invention relates to a balanced type water inlet and outlet valve group of an ultrahigh pressure supercharger. The novel balanced type water inlet and outlet valve group comprises an end cover (9), a long plug (8), a high-pressure one-way valve seat (5) and a high-pressure one-way valve core (6), wherein the end cover (9) is arranged on a high-pressure cylinder (2); the long plug (8) is arranged in the end cover (9); one end of the long plug (8) is extended into the high-pressure cylinder (2), and the other end of the long plug (8) is extended out of the end cover (9); and the long plug (8) is connected with a high-pressure water output joint (10). The novel balanced type water inlet and outlet valve group is characterized in that: the high-pressure one-way valve seat (5) is arranged on one end, which is extended into the high-pressure cylinder (2), of the long plug (8); the pressure born by an inner hole and an outer wall of the high-pressure one-way valve seat (5) is as same as that in the high-pressure cylinder (2); and the high-pressure one-way valve core (6) is arranged on one side, where the high-pressure one-way valve seat (5) is, of the long plug (8). The novel balanced type water inlet and outlet valve group has the advantages of simple structure, convenient manufacture and capacities of making the internal and external parts of the high-pressure one-way valve seat (5) bear alternating stress uniformly without generating fatigue damage and prolonging the service life by more than three times.

Description

technical field [0001] The invention relates to an ultrahigh pressure water jet, cutting and cleaning equipment technology, in particular to an ultrahigh pressure water generating device in the water jet equipment, in particular to a balanced ultrahigh pressure supercharger intake and discharge valve group. Background technique [0002] The ultra-high pressure booster is a key part of water jet cutting and cleaning equipment, and its performance directly affects the performance of the equipment. At present, the typical structure of the inlet and outlet valve group of the 400MPa ultra-high pressure supercharger at home and abroad is as follows: figure 1 As shown, its working principle is that through the reciprocating motion of the high-pressure piston rod 1, the low-pressure water is sucked into the high-pressure cylinder 2 and pressurized, and then output to the high-pressure accumulator through the high-pressure check valve, and then the pressure is stabilized by the accum...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the parts such as the valve seat and the long plug in the inlet and outlet valve assembly of the existing ultra-high pressure supercharger are prone to material fatigue damage due to long-term exposure to high-pressure alternating pressure, so that the working life is generally lower than The problem of 2000 hours is to design a balanced ultra-high pressure supercharger inlet and outlet valve group that can make the parts such as high-pressure one-way valve seats and long plugs bear equal alternating pressure inside and outside without stress fatigue damage.

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