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Special device for adjusting splayed opening of underwater expansion bent flange

A special device, the technology of the eight-shaped mouth, which is applied in the field of special devices for adjusting the "eight-shaped mouth" of the underwater expansion bend flange, can solve the problem of the bolts being difficult to put on the two flange bolts, and achieve the effect of avoiding direct contact.

Active Publication Date: 2021-07-23
CHINA NAT OFFSHORE OIL CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a special device for adjusting the "eight-shaped mouth" of the underwater expansion bend flange, which solves the problem that the bolts are difficult to put on the two flanges and the bolts The problem with turning the wrench

Method used

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  • Special device for adjusting splayed opening of underwater expansion bent flange
  • Special device for adjusting splayed opening of underwater expansion bent flange
  • Special device for adjusting splayed opening of underwater expansion bent flange

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0016] Examples such as Figure 1 to Figure 3 As shown, the present invention discloses a special device for adjusting the "eight-shaped mouth" of the underwater expansion bend flange, which consists of a fastening baffle 1, a tension bolt 2, a reinforcement backing plate 3 and a reinforcement nut. The diver inserts the fastening baffle 1 between the gaps between the two flanges where the "eight-shaped mouth" appears, penetrates the tension bolt 2 from a flange bolt hole, and tightens it with the lock nut 1.4 of the fastening baffle 1.

[0017] In this embodiment, the fastening baffle 1 includes a first handle 1.1, a first rope threading hole 1.2, a baffle main body 1.3 and a lock...

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Abstract

The invention discloses a special device for adjusting a splayed opening of an underwater expansion bent flange. The device comprises a fastening baffle plate, a stress application base plate, a stress application nut and a tension bolt, the tension bolt is arranged at a gap between two flanges, one end of the stress application bolt penetrates through a bolt hole of one flange and is detachably and fixedly connected with the fastening baffle plate, the stress application nut is located on one side, away from the fastening baffle plate, of one flange and is in threaded connection with the tension bolt, and the stress application base plate is arranged between one flange and the stress application nut. According to the device, the problems that a bolt is difficult to penetrate through the two flanges and the bolt rotates along with a wrench can be solved.

Description

technical field [0001] The invention relates to a special device for adjusting the "eight-shaped mouth" of an underwater expansion bend flange. Background technique [0002] Underwater expansion bend flange butt joint installation. At present, the installation technology of ship crane hoisting expansion bend for docking is generally used in Bohai Bay. This technology can effectively realize the rapid docking of expansion bend and save project cost. However, this technology is in During the docking process, it is easy to cause the flange surface to be non-parallel, that is, the situation of "eight-shaped mouth". The traditional "sight-shaped mouth" methods include: (1) For a slight "sight-shaped mouth", bolts need to be threaded at the positions where the openings of the two flanges are larger, and a ratchet wrench or a hydraulic wrench is used to apply force to the bolts, and the nuts of the bolts are squeezed The flange surface narrows the gap between the two flange surfac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/024F16L23/00
CPCF16L23/024F16L23/003
Inventor 薛方张大伟黄一峰陈勇秦勇邓平王来福张宇张伟赵晓东包洪慧田瑞南
Owner CHINA NAT OFFSHORE OIL CORP
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