Ultrahigh-pressure three-position three-way valve

A three-position three-way valve and ultra-high pressure technology, applied in the field of hydraulic reversing valves, can solve the problems of difficult realization and high sensitivity of pressure relief valve adjustment, achieve simple and reliable structure, shorten downtime of failure, avoid debugging difficulties and ensure safety hidden effect

Pending Publication Date: 2022-04-29
ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Accurate and slow pressure relief in the middle and high pressure stage requires high adjustment sensitivity and quick response of the pressure relief valve, which itself is contradictory to rapid pressure relief in the low pressure stage and is difficult to achieve

Method used

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  • Ultrahigh-pressure three-position three-way valve
  • Ultrahigh-pressure three-position three-way valve
  • Ultrahigh-pressure three-position three-way valve

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Embodiment Construction

[0040] The embodiments of the present invention will be explained by the following specific examples, and those familiar with this technology can easily understand other advantages and effects of the present invention from the disclosure of this specification.

[0041] see also Figure 1 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the invention can be implemented, so they have no technical significance. Any modification of structures, change of proportions, or adjustment of sizes should still fall within the technical contents disclosed in this invention without affecting the effects and purposes achieved by this invention. Meanwhile, the terms such as "up", "down", "left", "right", "middle" and "one" quoted in this specification are ...

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Abstract

An ultrahigh-pressure three-position three-way valve comprises a valve body, a control piston and a control piston end cover, the control piston and the control piston end cover are correspondingly arranged at the two ends of the valve body, and the control piston is driven by a three-position four-way electromagnetic reversing valve. The ultrahigh-pressure three-position three-way valve is adopted for controlling pressure relief, so that the whole pressure relief working unit is simple and reliable in structure, extra electrical control is not needed, and debugging difficulty and potential safety hazards caused by improper matching of an electrical control system and a valve working principle can be avoided; a cone valve structure is used for replacing a traditional two-position two-way sliding valve structure, system work is more reliable, the higher the system pressure is, the better the sealing performance is, the sealing performance is obviously better than that of a traditional ultrahigh-pressure two-position two-way sliding valve and sealing ring mode, and the risks that the sealing ring is damaged and the sliding valve is clamped along with the increase of working time do not occur.

Description

Technical field [0001] The invention belongs to the technical field of hydraulic reversing valves, in particular to an ultrahigh-pressure three-position three-way valve, in particular to an ultrahigh-pressure reversing valve used in the pressure relief process of synthetic technology in the synthetic diamond industry. technical background [0002] The synthetic equipment of synthetic diamond in China is a six-sided hydraulic press, which adopts an ultra-high pressure hydraulic system with an oil pressure of 100MPa. The working flow of the hydraulic system mainly includes: the cylinder is emptied, the pressure is quickly increased to 6MPa, then the overpressure is slowly increased to about 100MPa and maintained, and finally the pressure relief process. [0003] At present, the mainstream pressure relief devices include three-stage pressure relief valves and high-precision pressure relief valves driven by stepping motors, hereinafter referred to as servo unloading. Three-stage pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K11/10
CPCF15B13/024F16K11/10F15B2013/002
Inventor 古龙辉张跃亭司少朋祁路方陈亦工
Owner ZHENGZHOU RES INST FOR ABRASIVES & GRINDING CO LTD
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