Flange sealing groove field repair process

A flange sealing and repairing technology, used in manufacturing tools, metal processing equipment, grinding machines, etc., can solve the problems of personal and property damage, RTJ groove leakage, and high maintenance costs, achieve high grinding efficiency, improve surface roughness, and facilitate on-site processing effect

Inactive Publication Date: 2018-10-12
苏州罗克莱科技有限公司
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  • Abstract
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Problems solved by technology

[0002] Pipelines in steel structures such as offshore oil exploration platforms, FPSO (Floating Production Storage and Offloading), and submarine manifolds are connected by a large number of flanges, and the marine environment is very harsh. In most cases, parts will withstand high temperature and high pressure. Most pressure flanges adopt the sealing form of RTJ groove, but if the RTJ groove is damaged, it will be leaked. Once leaked, it will cause huge environmental pollution and loss of personal property, and the maintenance cost is very high. Therefore, we propose a On-site Repair Process of Flange Sealing Groove

Method used

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0026] refer to Figure 1-2 , the present invention proposes a process for repairing flange sealing grooves on site, comprising the following steps:

[0027] Step 1: Pretreatment: Use a blower to blow out the dust and impurities in the flange sealing groove 2;

[0028] Step 2: Spread the grinding paper 3 flat: take the grinding paper 3, and spread the grinding paper 3 above the flange sealing groove 2 mentioned in step 1;

[0029] Step 3: Take the special tool 4: Take the special tool 4 for repairing the flange sealing groove 2;

[0030] Step 4: Pre-install tools: place the special tool 4 mentioned in step 3 on the grinding paper 3 laid in step 2, press the special...

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Abstract

The invention relates to the technical field of flange maintenance, in particular to a flange sealing groove field repair process. The flange sealing groove field repair process comprises the following steps of (1) pretreatment; (2) grinding paper laying; (3) special tool taking and using; (4) tool pre-installation; (5) grinding; (6) tool taking-out; and (7) aftertreatment. The flange sealing groove field repair process has the beneficial effects that the surface roughness of a repaired circular groove is improved obviously and meets the technical requirements, and field treatment is facilitated; the flange sealing groove field repair process has little influence on the size compared with other manual grinding methods and has the higher grinding efficiency than the other methods; the flange sealing groove field repair process can adapt to various types of sealing grooves; the product is wide in application range, and maintenance of the flange circular groove used in the high and low-temperature and high-pressure environment can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of flange maintenance, in particular to a process for repairing flange sealing grooves on site. Background technique [0002] Pipelines in steel structures such as offshore oil exploration platforms, FPSO (Floating Production Storage and Offloading), and submarine manifolds are connected by a large number of flanges, and the marine environment is very harsh. In most cases, parts will withstand high temperature and high pressure. Most pressure flanges adopt the sealing form of RTJ groove, but if the RTJ groove is damaged, it will be leaked. Once leaked, it will cause huge environmental pollution and loss of personal property, and the maintenance cost is very high. Therefore, we propose a Process for repairing flange seal grooves on site. Contents of the invention [0003] The purpose of the present invention is to solve the shortcomings in the prior art, and propose a process for repairing flange sealing g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/00B24B19/02
CPCB24B19/00B24B19/02
Inventor 张政罗伟松王良陈成绕建红
Owner 苏州罗克莱科技有限公司
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