External pilot balance type kingston valve

A balanced, sea-opening valve technology, applied in the direction of lift valve, valve details, valve device, etc., can solve the problems of manual valve opening, easy cleaning, easy blocking of pilot holes, etc., and achieve the effect of long service life and simple maintenance.

Inactive Publication Date: 2014-07-02
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The opening force of the existing large submersible deep sea valve is very large. When the water pressure is high, it is very difficult to open the valve manually. When using automatic driving equipment, the output force of the required driving equipment is very large. The general solution It adopts a pilot-operated structure, pouring high-pressure water from the water inlet of the valve into the ba...

Method used

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  • External pilot balance type kingston valve
  • External pilot balance type kingston valve
  • External pilot balance type kingston valve

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Embodiment Construction

[0017] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0018] combine Figure 1~4 , the present invention mainly includes hydraulic cylinder parts 1-3, 39-40, valve stem parts 5-6, 11, 20, etc., packing parts 12-13, 29, valve cover parts 14-15, etc., valve body part 16, Piston part 17, valve head part 19-20, 22-23, pilot pipe control part 24-25, 27, 30-38, etc.

[0019] There are first-second hydraulic cylinder oil ports 39 and 40 on the upper and lower sides of the double-acting hydraulic cylinder 1, and the up-and-down movement of the piston rod 2 is driven by the different oil in and out sequences of the first-second hydraulic cylinder oil ports 39 and 40 , the piston rod 2 and the valve rod 11 are connected together through the adapter sleeve 4 . The double-acting hydraulic cylinder 1 is connected to the valve cover 14 through four first bolts 3 .

[0020] The reversing block 5 is fixed on the corresponding pos...

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Abstract

The invention aims to provide an external pilot balance type kingston valve. The external pilot balance type kingston valve comprises a two-position and three-way reversing valve, wherein the two-position and three-way reversing valve comprises a reversing valve body and a reversing valve element; the reversing valve body is fixed to a valve cover; a spring sleeve is fixed to the lower end of the reversing valve body and is internally provided with a spring; the reversing valve element is arranged inside the reversing valve body and located on the spring; a valve element thrust wheel is installed at the top end of the reversing valve element; a pressure lever support is fixed to the top end of the reversing valve body and is provided with a pressure lever; a revolute pair is formed by the pressure lever and the pressure lever support; the first end portion of the pressure lever abuts against the valve element thrust wheel; the pressure lever is matched with the spring to control the reversing valve element to move vertically; the second end portion of the pressure lever is provided with a pressure lever rotary wheel. By the adoption of the balance pressure principle, a pilot tube guides high pressure water of a water inlet of the valve into a balance pressure cavity, backward backpressure on a valve head is formed, pressure on the valve head by the high pressure water of the water inlet of the valve is completely counteracted when the valve is switched on, and thus the valve is switched on easily.

Description

technical field [0001] The invention relates to a valve, specifically a sea valve. Background technique [0002] The opening force of the existing large submersible deep sea valve is very large. When the water pressure is high, it is very difficult to open the valve manually. When using automatic driving equipment, the output force of the required driving equipment is very large. The general solution It adopts a pilot-operated structure, pouring high-pressure water from the water inlet of the valve into the balance pressure chamber to form a downward force on the valve head, thereby offsetting part or all of the water pressure, while the conventional pilot-operated structure is an internal pilot. The pilot hole is generally relatively small. Due to the complex environment in seawater, the pilot hole is easy to block and easy to clean, so manpower or driving equipment cannot open the valve, resulting in valve failure. Contents of the invention [0003] The purpose of the p...

Claims

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Application Information

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IPC IPC(8): F16K1/00F16K1/48F16K31/12F16K39/02F16K41/02
CPCF16K1/00F16K1/48F16K31/122F16K39/024F16K41/02
Inventor 赵丹潘方冬曾杏刘少刚吴伟峰郑大勇程千驹吴长龙姚磊宋建鑫
Owner HARBIN ENG UNIV
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