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Duplex gate valve for deep water

A double gate valve and double valve technology, applied in the direction of sliding valve, valve details, valve device, etc., can solve the problems of no more than 1500 meters, the performance requirements of oil drilling and production equipment are getting higher and higher, and the difficulty of oil production is difficult.

Pending Publication Date: 2021-06-29
河北华北石油荣盛机械制造有限公司 +3
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AI Technical Summary

Problems solved by technology

[0002] With the decrease of onshore oil resources, offshore oil extraction is increasing rapidly. Due to the influence of seawater depth, deep-water oil extraction is difficult, and the performance requirements of deep-water oil drilling and production equipment are getting higher and higher; underwater gate valves It is a key component in the subsea oil tree, subsea emergency sealing device and subsea manifold system. However, the development of subsea gate valves in China is in its infancy. Exceeding 6000psi, it cannot meet the domestic demand for deepwater oil development

Method used

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  • Duplex gate valve for deep water
  • Duplex gate valve for deep water
  • Duplex gate valve for deep water

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0027] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must hav...

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Abstract

The invention relates to a duplex gate valve for deep water, which comprises a duplex valve body which is of two valve body structures which are vertically fixed in parallel, and is provided with a communicated circulation channel along the horizontal direction; each valve body structure is internally provided with a valve cavity communicating with the circulation channel; one valve plate is arranged in each valve cavity; each valve plate corresponds to one driving mechanism; the top of each driving mechanism is driven by an ROV; the valve plates are driven by valve rods to communicate with or cut off the circulation channel; the interior of each pressure compensation mechanism is divided into two cavities through an elastic piece; the inner cavity of each driving mechanism correspondingly communicates with one cavity of the corresponding pressure compensation mechanism; the other cavity of each pressure compensation mechanism is communicated with the outside, and pressures in the two cavities are kept balanced; therefore, the influence of seawater pressure on the gate valve can be counteracted; the gate valve can be applied to deep-sea operation to meet the requirement of deep-water operation; due to the adoption of a duplex structure, one device is used and the other device is standby; and safety guarantee is provided for use.

Description

technical field [0001] The invention relates to the technical field of deep water oil exploitation, and more specifically relates to a double gate valve for deep water. Background technique [0002] With the decrease of onshore oil resources, offshore oil extraction is increasing rapidly. Due to the influence of seawater depth, deep-water oil extraction is difficult, and the performance requirements of deep-water oil drilling and production equipment are getting higher and higher; underwater gate valves It is a key component in the subsea oil tree, subsea emergency sealing device and subsea manifold system. However, the development of subsea gate valves in China is in its infancy. More than 6000psi, can not meet the domestic demand for deep-water oil development. Therefore, how to provide a double gate valve for deep water is an urgent problem to be solved by those skilled in the art. Contents of the invention [0003] For this reason, the object of the present invention...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/30F16K27/04F16K31/122F16K41/02F16K37/00
CPCF16K3/0281F16K3/30F16K27/044F16K31/122F16K41/02F16K37/0008
Inventor 崔津生顾纯巍陈艳东杨平张红生王卫华王建伟张东平王薇张崇李梦博李子良王华高明磊马龙殷亚航
Owner 河北华北石油荣盛机械制造有限公司
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