A construction method for large-diameter coke oven gas pipelines passing through railway culverts

A technology of coke oven gas and construction method, which is applied in the directions of pipe laying and maintenance, pipes/pipe joints/pipes, mechanical equipment, etc., can solve the problems of low efficiency, affecting the normal operation of railways, long construction period, etc., and achieves high efficiency and structure. Simple, low-cost effects

Active Publication Date: 2018-06-26
SHANGHAI ERSHIYE CONSTR CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a construction method for large-diameter coke oven gas pipelines passing through railway culverts, which solves the problems that the existing construction methods require the use of large-scale construction machinery, which leads to low efficiency and long construction period, and affects the normal operation of the railway.

Method used

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  • A construction method for large-diameter coke oven gas pipelines passing through railway culverts
  • A construction method for large-diameter coke oven gas pipelines passing through railway culverts

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Embodiment 1

[0034] Such as figure 1 As shown, a construction method for a large-diameter coke oven gas pipeline to pass through a railway culvert includes the following steps:

[0035] (1) Build an operating platform with a width of 5m and a length of 15m on both sides and the middle of the railway culvert, and set up several inverted chains on both sides and the middle of the railway culvert, and construct from both ends of the culvert to the middle at the same time;

[0036] (2) Assemble and weld a thick-walled casing 2 with a length of 2m and a tube wall thickness of 28mm and two sections of a thin-walled casing 1 with a length of 5m and a tube wall thickness of 16mm to obtain a 12m length from outside to inside. The casing module of the wall casing 1, the thick wall casing 2 and the thin wall casing 1, in which the thick wall casing 2 and the thin wall casing 1 are welded on one side outside the V-shaped groove;

[0037] (3) Lay roller bars on the track where the casing passes through the cu...

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Abstract

The invention relates to a construction method for arranging a large-aperture coke gas pipeline through a railway culvert. The method comprises the following steps: constructing an operating platform; prefabricating a pipeline module; paving rolling bars through which the pipeline can pass through the culvert; arranging the sleeve module through the culvert; prefabricating the coke gas pipeline; sleeving the coke gas pipeline with a sleeve; pairing the sleeve and the coke gas pipeline and passing through the culvert; adjusting the direction of the coke gas pipeline and the elevation of the sleeve; supplementing paint. According to the method, the method combining a reversible chain and a crane is utilized to arrange the coke gas pipeline through the culvert, so that the construction is safe and stable; machines used per shift are decreased; assisting devices are simple in structure; in addition, the construction is synchronously carried out at two sides of the culvert, so that the efficiency is high, and the cost is low.

Description

Technical field [0001] The invention belongs to the technical field of coke oven gas pipeline construction, and particularly relates to a construction method for a large-caliber coke oven gas pipeline to pass through a railway culvert. Background technique [0002] The production of natural gas from coke oven gas is one of the popular directions of coke oven gas processing. The coke oven gas pipeline from the outlet of the coke oven to the natural gas preparation device has a large pipe diameter, a long pipeline, a complicated direction, and many obstacles to pass through. Railway culverts are one of the common obstacles in the process of laying coke oven gas pipelines. The existing construction methods require the use of large construction machinery, and the efficiency is low and the construction period is long, which may affect the normal operation of the railway. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a const...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L1/024
CPCF16L1/0243
Inventor 曹秀景李俊峰席春生李卓李文凯余淑昌
Owner SHANGHAI ERSHIYE CONSTR CO LTD
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