Direct-immersion-type electromagnetic pilot valve

A solenoid pilot valve, direct immersion technology, used in valve detailing, valve assembly, valve operation/release mechanism, etc.

Inactive Publication Date: 2011-09-14
CHENGDU OUXUN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of the pilot-driven high-pressure valve in the hydraulic system of the main engine of the blowout preventer at present, and adopts the method of high-pressure sealing and electromagnetic force to open, and designs a direct-immersion electromagnetic pilot valve that can be used in the hydraulic system of the main engine of the deep-sea blowout preventer.

Method used

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Effect test

Embodiment 1

[0020] The structure of the present invention is as follows:

[0021] The present invention consists of a two-position three-way hydraulic valve, a direct immersion electromagnet and a watertight connector. The two-position three-way hydraulic valve 1 consists of a screw plug 6, a filter screen 7, a left valve seat 8, a sealing ring 9, a valve body 11, The valve stem 12, the right valve seat 15, the support seat 16, the steel ball 17 and the rubber seal assembly are composed. The valve stem 12 is installed in the valve body 11, and rubber seals are arranged on the front, middle and rear ends of the valve body 11. Assemblies 10, 13, 14 and 18, the steel ball 17 is arranged in the support seat 16;

[0022] Direct immersion electromagnet 3 is arranged in shell 28 by screw 2, and direct immersion electromagnet 3 comprises static iron core 19, moving iron core 21, stainless steel spring 27, coil assembly 22, shell 28 and sealing ring, wherein, shell 28, static The iron core 19 and...

Embodiment 2

[0025] The assembly sequence of the present invention is:

[0026] In the first step, first apply grease to the right valve seat 15 with the seal ring 9 installed in the left end hole of the valve body 11, then put the filter screen 7 and screw plug 6 into it, and put them in for later use;

[0027] In the second step, the static iron core 19 with the iron core sealing ring 20 installed is coated with grease and then packed into the housing 28, after the plug sealing ring 26 is installed on the plug 5, the two lead wires of the static iron core 19 are respectively connected to the The two pins 24 on the connector 5 are welded firmly. After the above work is completed, the connector 5 is smeared with grease and loaded into the other end of the housing 28, and then the connecting screw of the screw plug 6 is installed and tightened. After the above work is completed Then stainless steel spring 27 and moving iron core 21 are packed into the endoporus of static iron core 19 respec...

Embodiment 3

[0030] The use process of the present invention is as follows: when in use, the two-position three-way hydraulic valve 1 of the present invention is connected with the direct immersion electromagnet 3 through the screw 2, and after assembly, the present invention is inserted on the deep water blowout preventer equipment, and then through The plug 5 is connected to the control system;

[0031] The working process of the present invention is as follows: under the action of the stainless steel spring 27, the direct immersion electromagnet 3 moves to the left, so that the valve stem 12 pushes the steel ball 17 to press the left valve seat 8, and the two-position three-way hydraulic valve 1 can be realized. Sealing of the P port; on the contrary, the direct-immersion electromagnet 3 works by feeding the plug 5 with a 24V DC voltage, and the moving iron core 21 compresses the stainless steel spring 27 to make the steel ball 17 disengage from the left valve seat 8, and the P port and ...

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Abstract

The invention relates to a direct-immersion-type electromagnetic pilot valve, belonging to the technical field of design and manufacturing of ocean oil and gas exploitation equipment. A mode of high-voltage sealing and opening by electromagnetic force is adopted; a direct-immersion-type high-voltage electromagnetic pilot valve for a deep-sea blowout preventer is designed, and is composed of a two-position three-way hydraulic valve, a direct-immersion-type electromagnet and a watertight insertion piece; a moving magnet core is designed by adopting a seal structure formed by a 446SS stainless steel soft magnetic material and the two-position three-way hydraulic valve, the conversion function of the two-position three-way valve of 21MPa under deep water below 2800 meters is realized, and the valve has the characteristics of accurate opening or closing of the two-position three-way valve.

Description

technical field [0001] A direct immersion electromagnetic pilot valve is used for pilot control of wellhead blowout preventers and devices for oil drilling in deep waters of 2800 meters and below, and belongs to the technical field of design and manufacture of offshore oil and gas exploitation equipment. Background technique: [0002] In order to ensure the smooth progress of the drilling project and meet the requirements of marine environmental protection, the safe operation and high reliability of underwater control equipment are very important when implementing oil and gas exploitation at sea, especially in deep waters below 2800 meters. Important equipment, if the equipment control is invalid, it will cause marine disasters; DDV pilot valve, or relay valve, the English name is PILOT VALVE, is the main control tank in the offshore oil drilling and completion underwater blowout preventer system Equipment; the underwater blowout preventer system is used for safe drilling an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
Inventor 赵宏宇徐著华陈宗勇俞祖英王洪杰
Owner CHENGDU OUXUN TECH CO LTD
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