Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Tool for fixing grinding ring for high-pressure flange sealing face

A technology of grinding ring and cover, applied in grinding devices, grinding tools, grinding machine tools, etc., can solve the problems of high precision of high-pressure flange sealing surface, damage of sealing surface grinding deformation, obvious influence of gravity, etc., to reduce physical strength and convenience. Operation to ensure the effect of accuracy

Active Publication Date: 2017-03-22
中国石油天然气第一建设有限公司
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For large-diameter high-pressure flanges, when the facade is arranged or the flange is arranged facing downwards, there is a problem with the use of grinding rings. For example, the grinding rings for DN400 size flanges have a mass of about 10kg, and the influence of gravity is obvious.
[0003] Due to the high precision required for the sealing surface of the high-pressure flange, once the sealing surface is ground and deformed due to the improper fixing method of the grinding ring, it will cause greater economic losses. How to use suitable fixing tools suitable for the site environment and effectively solve the above problems become a difficulty in construction

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
  • Tool for fixing grinding ring for high-pressure flange sealing face
  • Tool for fixing grinding ring for high-pressure flange sealing face
  • Tool for fixing grinding ring for high-pressure flange sealing face

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] As shown in the accompanying drawings, a tooling for fixing the grinding ring 12 on the sealing surface of a high-pressure flange according to this patent is composed of an inner fixing disc 1 component, an outer fixing disc component and a connecting screw 9 component;

[0026] The internal fixed plate assembly includes an internal fixed plate 1, a spacer 2, a fixed bolt 3 with a nut, and a central nut 4; the center of the internal fixed plate 1 is provided with a round hole, and the spacer 2 is arranged on the circular surface of the lower side of the internal fixed plate 1 Above, each spacer 2 is evenly distributed on the circumference; the nut of the fixing bolt 3 with nut is fixedly connected with the spacer 2, and the fixing bolt 3 is arranged axially and horizontally, which is consistent with the radial direction of the inner fixing plate 1; the central nut-4 is connected with the inner fixing The circular hole at the center of the disk 1 is arranged concentricall...

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

No PUM Login to View More

Abstract

The invention introduces a tool for fixing a grinding ring for a high-pressure flange sealing face. The tool is characterized by comprising an inner fixing tray component, an outer fixing tray component and a connecting screw rod component, wherein the inner fixing tray component comprises an inner fixing tray, cushioning blocks, fixing bolts with nuts and a central nut I; the outer fixing tray component comprises a cross bracket, fine adjustment bolts, a stay bolt with a nut and a central nut II; and the connecting screw rod component comprises a connecting screw rod and a back-pressure nut. The tool has the following beneficial effects: field fabrication is facilitated; fixing of the grinding ring in the grinding process of the sealing face can be effectively guaranteed; the influence of dead weight of the grinding ring on the grinding process is eliminated; the grinding accuracy of the sealing face is ensured; grinding of the sealing face is well completed without electric tools on site, so that the equipment, technical and labor costs are lowered; convenience is brought for personnel to operate; and meanwhile, physical output of personnel in the operating process is reduced.

Description

technical field [0001] The invention relates to a high-pressure large-diameter flange arranged vertically in oil refining, equipment manufacturing, or other industrial installations. The sealing surface is treated with a grinding ring. A tool for fixing the grinding ring, especially a fixed high-pressure flange sealing surface grinding ring frock. Background technique [0002] High-pressure flanges are inevitable components in modern industrial installations and high-pressure equipment manufacturing industries. Generally, the sealing surface of high-pressure flanges is a ring groove type. In the process of device construction, operation, and equipment manufacturing, it is inevitable that the sealing surface will be minimally invasive, corroded, or have slight quality defects. If it can be repaired, it needs to be treated with tooling. Generally, electric mechanical tools or grinding rings can be used. Because electric mechanical tools are expensive and require specialized t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B24B37/34B24B37/11
CPCB24B37/11B24B37/34
Inventor 薛防震黄鹏举付云峰刘长河王建宁王晓单洪峰赵齐军陈亮于海洋
Owner 中国石油天然气第一建设有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products