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Subsea gate valve position indicator

An underwater gate valve and indicator technology, which is applied to valve devices, sliding valves, mechanical equipment, etc., to achieve the effect of fewer auxiliary parts, simple structure, and favorable installation and layout.

Active Publication Date: 2021-02-19
BAOJI PETROLEUM MASCH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an underwater gate valve position indicator, which overcomes the problem that the pointer deflection indicator needs to have linear motion components on the driver

Method used

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  • Subsea gate valve position indicator
  • Subsea gate valve position indicator
  • Subsea gate valve position indicator

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Embodiment Construction

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] The underwater gate valve position indicator of the present invention has a structure such as Figure 1-3 As shown, it includes a shell 4, the shell 4 is provided with a blind hole I30 and a through hole 31 whose central axes are perpendicular to each other, and the end surfaces on both sides of the shell 4 are respectively connected with the ROV rotating guide cylinder 1 and the end cover II6, The through hole 31 is provided with a worm shaft 2, and both ends of the worm shaft 2 respectively extend into the inner cavity of the ROV rotating guide cylinder 1 and extend out of the end cover II6, and the middle part of the worm shaft 2 is provided with a worm thread 35, so that Both ends of the worm thread 35 are provided with a tool relief groove 36, and the two ends of the worm shaft 2 are respectively provided with a standard square 32...

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Abstract

The invention discloses an underwater gate valve position indicator, which comprises an ROV rotary guide cylinder, a worm shaft, an end cover I, a casing, a worm wheel, an end cover II, a bearing, an indicator board, an indicator rod, a gland, a shaft support, and an axle sleeve As well as seals, wear rings and fasteners. The invention has strong adaptability and can be widely used in supporting rotary underwater gate valve drivers; there are few auxiliary parts, and the structure is simple and compact, which is beneficial to the installation and layout of underwater equipment; High reliability requirements for underwater equipment.

Description

technical field [0001] The invention belongs to the technical field of offshore oil and gas drilling equipment, and relates to an underwater gate valve position indicator. Background technique [0002] Subsea gate valve actuators are widely used in offshore subsea Christmas trees, tubing heads, manifolds and other equipment, using hydraulic or mechanical drive to realize the opening and closing of gate valves. In order to ensure timely and accurate feedback of the opening and closing status of the gate valve, in addition to setting the gate valve status display mark on the remote control system, a mechanical position indicator is generally provided on the gate valve driver. [0003] The position indicators of conventional rotary underwater gate valves are mostly pointer deflection type, that is, the connecting rod is driven by the linear motion of some parts on the underwater gate valve driver, and then the V-shaped indicator rod is deflected around the fixed axis, or It is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/00F16K37/00
Inventor 孙传轩阎永宏刘文霄严金林曾乔
Owner BAOJI PETROLEUM MASCH CO LTD
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