Underwater flat gate valve for sea bottom christmas tree

A flat gate valve, Christmas tree technology, applied in the direction of sliding valve, valve details, valve device, etc., to achieve the effect of easy disassembly and replacement, easy disassembly and maintenance, and reduced processing costs

Pending Publication Date: 2018-08-24
天津祥嘉流体控制系统有限公司
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) For deep sea underwater production technology, the deep sea gate valve can only be control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underwater flat gate valve for sea bottom christmas tree
  • Underwater flat gate valve for sea bottom christmas tree
  • Underwater flat gate valve for sea bottom christmas tree

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0043] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples, and detailed descriptions are as follows with accompanying drawings:

[0044] See Figure 1 to Figure 3 , A submarine Christmas tree underwater flat gate valve, comprising a valve body 1, a valve cover 2 mounted on the valve body, a first sealing structure 3 is provided between the valve body and the valve cover; a bracket is installed on the upper end of the valve cover 4. A valve seat 5 is installed in the middle of the flow passage of the valve body, and a second sealing structure 6 is provided between the valve seat and the valve body; a longitudinally movable gate 7 is arranged in the middle of the valve seat; the gate passes The nesting structure is connected to the valve stem 8, the upper end of the valve stem extends out of the valve cover, and a third sealing structure is provided between the valve cover and the valve stem; a ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention relates to an underwater flat gate valve for a sea bottom christmas tree. The underwater flat gate valve comprises a valve body, a valve cover, a gate plate, a support and a valve seat.A first sealing structure is arranged between the valve body and the valve cover. A second sealing structure is arranged between the valve seat and the valve body. A third sealing structure is arranged between the valve cover and a valve rod. A gasket ring and a valve rod nut are mounted in the support, and the valve rod stretches out of the valve cover to penetrate the gasket ring to be in threaded connection with the valve rod nut. The upper end of the valve rod nut is connected with a drive sleeve, the drive sleeve is connected with an upper valve rod, and the upper valve rod is connected with a valve position indication mechanism. The upper valve rod is connected with an ROV connector through a supporting bearing. A pre-pressing disc spring for providing initial specific pressure is mounted on the valve seat. A pressure relief channel extending in the upstream direction is arranged in the valve body, and a one-way pressure relief valve is mounted on an inner channel of a valve cavity of the valve body. A gate plate guide mechanism is detachably mounted at the symmetric positions of the middle of the valve seat. The underwater flat gate valve has the advantages that sealing performance is good, and the functions of gate plate guide and start and stop compensation are achieved; and meanwhile, for gate plate and valve seat hardening treatment, the corrosion resisting strengthis improved, corrosion resistance is high, and the service life is long.

Description

Technical field [0001] The invention belongs to the technical field of underwater valves, and particularly relates to an underwater flat gate valve for submarine Christmas trees. Background technique [0002] After the development of oil and gas resources shifted from land to the 1980s, key underwater equipment such as subsea cluster wellheads, dry and wet Christmas trees, multi-well manifolds, and subsea metering devices were developed. Underwater pressurization and subsea oil and gas Innovative technologies such as processing have gradually entered the stage of field testing and industrial application. The operating depth of underwater remote control robots is up to 4 000m. The development mode of underwater oil and gas fields is becoming more and more abundant. The records of application water depth and the connection distance of underwater oil and gas fields are quickly refreshed. There are many successful cases ranging from water depths of several meters to thousands of mete...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F16K3/02F16K3/30F16K27/04F16K27/12
CPCF16K3/0227F16K3/0281F16K3/30F16K27/044F16K27/12
Inventor 张海龙邱志忠李洪洁谢沓宏
Owner 天津祥嘉流体控制系统有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap