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Pipeline external clamp

A technology of external counterparts and pipes, applied in auxiliary devices, auxiliary welding equipment, welding/cutting auxiliary equipment, etc., can solve the problem of short effective root welding length of weld seam, and achieve the effect of increasing effective root welding length

Inactive Publication Date: 2013-12-18
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a pipe external counterpart to solve the problem in the prior art that the effective root weld length of the corresponding weld seam is relatively short due to the blockage of the briquette

Method used

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Embodiment Construction

[0019] A kind of embodiment of the external mouthpiece of pipeline is such as Figure 1~4 Shown: including the upper half-ring pressure ring 5 and the lower half-ring pressure ring 1, the left ends of the upper and lower half-ring pressure rings are hingedly connected, and the right ends are connected by a locking mechanism 2, and the upper and lower half-ring pressure rings are both It includes two half-ring plates 6 arranged at intervals along the front-back direction. Five pressing blocks 3 for pressing the corresponding two pipes are arranged on the upper and lower semi-ring pressure rings at intervals around the circumference. The pressing blocks include pressing pressing blocks and connecting pressing blocks 4. Among them, the pressing pressing blocks There are five blocks, and there are also five connecting briquetting blocks. A single compression briquetting block is located between two adjacent connection briquetting blocks, and a single connection briquetting block i...

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Abstract

The invention relates to a pipeline external clamp, which comprises an upper semi-ring pressing ring and a lower semi-ring pressing ring, wherein the left ends of the upper semi-ring pressing ring and the lower semi-ring pressing ring are in hinged connection with each other, and the right ends of the pressing rings are connected with each other through a locking mechanism; at least two pressure blocks used for compressing two corresponding pipelines are arranged on the upper and lower semi-ring pressing rings at certain interval(s) along a circumferential direction; and at least one pressure block is provided with a demising part for demising an annular weld at a corresponding position at a position which corresponds to an annular weld between the two pipelines. According to the pipeline external clamp, the problem of small effective root welding length of the corresponding weld caused by blockage of the pressure blocks existing in the prior art is solved.

Description

technical field [0001] The invention relates to an external pipe counterpart for auxiliary pipe connection. Background technique [0002] The pipe external counterpart is the equipment that must be used in the connection construction of various medium pipelines. It is mainly used to realize the butt joint of two pipelines and ensure that the misalignment of the two pipelines to be connected is within a certain range of technical requirements. Existing pipeline external counterparts such as the "outside counterparts for pipe welding for long-distance pipeline welding" disclosed in Chinese patent document CN202517236U, the counterparts include upper and lower half-ring pressure rings, and upper and lower half-ring pressure rings. One end is connected by a hinge shaft, and the other end is connected by a locking mechanism. The upper and lower half-ring pressure rings together form a whole ring whose axis extends along the front-to-back direction, and the upper and lower half-ri...

Claims

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Application Information

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IPC IPC(8): B23K37/053
Inventor 王站成杜慧勇吴健刘建新李民徐斌张同
Owner HENAN UNIV OF SCI & TECH