Integral vulcanization construction method for large-diameter rubber-lined pipelines

A technology of integral vulcanization and construction method, which is applied in the field of phosphorus chemical industry, can solve the problems of long time consumption and achieve the effects of simple rubber lining facilities, reliable vulcanization quality and simple operation

Pending Publication Date: 2020-11-10
YUNNAN CONSTR & INSTALLATION JOINT STOCK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the problem that the existing large-diameter rubber-lined pipeline vulcanization construction method relies on vulcanization pots or vulcanization tanks and takes a long time, the present invention provides a large-diameter rubber-lined pipeline overall vulcanization construction method

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  • Integral vulcanization construction method for large-diameter rubber-lined pipelines
  • Integral vulcanization construction method for large-diameter rubber-lined pipelines

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Embodiment 1

[0027] Example 1: Taking the vulcanization construction of the large-diameter rubber-lined pipeline (1) of the first-phase 300,000-ton / year phosphoric acid plant of Inner Mongolia Dadi Yuntian Chemical Co., Ltd. as an example, the specific construction process is as follows.

[0028] The overall vulcanization construction method of the large-diameter rubber-lined pipeline (1) of the present invention is characterized in that the method is implemented according to the following steps:

[0029] 1) One rubber-lined pipeline to be vulcanized with qualified rubber lining is connected in U-shape through flanges with bolts, and a circular steel ring 2 made of ø12 round steel is arranged at the joint of the pipeline, and the circular steel ring 2 points Welded outside the waterline of the flange; the rubber-lined pipe 1 completed in series is placed on several support frames 3 and fixed, the support frame 3 is welded by steel plates, the top of the support frame 3 matches the shape of ...

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Abstract

The invention relates to an integral vulcanization construction method for large-diameter rubber-lined pipelines. The method comprises the following steps that the to-be-vulcanized large-diameter rubber-lined pipelines with qualified rubber linings are connected in series through flanges by using bolts, circular steel rings are arranged at the joints of the pipelines, and the rubber-lined pipelines which are connected in series are placed on a plurality of supporting frames to be fixed; blind plates are arranged at the two ends of the rubber-lined pipelines which are connected in series, circular steel rings are welded to the outer portions of the blind plates, and thermometers, pressure gauges, saturated steam inlet valves and water discharge opening valves are arranged on the blind plates; finally, saturated steam inlet pipelines are connected in a combined mode according to the serial connection shape of the to-be-vulcanized large-diameter rubber-lined pipelines and are fixed insidethe to-be-vulcanized rubber-lined pipelines, and steam exhaust holes are formed in the saturated steam inlet pipelines at equal intervals; and the saturated steam inlet valves are opened, and steam is slowly introduced into the rubber-lined pipelines through the saturated steam inlet pipelines for vulcanization construction. According to the method, a special vulcanizing boiler or vulcanizing tank is not needed, and the vulcanizing time is shortened.

Description

technical field [0001] The invention relates to the technical field of phosphorus chemical industry, in particular to an overall vulcanization construction method for large-diameter rubber-lined pipelines. Background technique [0002] With the continuous improvement of national industrialization policy and production technology, phosphorus chemical production equipment is developing rapidly towards large-scale, green and energy-saving direction, and the construction management and technical requirements for phosphorus chemical equipment are getting higher and higher. The vulcanization construction of large-diameter rubber-lined pipelines in phosphorus chemical plants is one of the key processes in the installation process of large-diameter rubber-lined pipelines. The vulcanization construction method of conventional large-diameter rubber-lined pipelines is to put the pipeline to be vulcanized into a vulcanization pot or vulcanization tank. The vulcanization operation is com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C35/02B29L23/00
CPCB29C35/02B29L2023/22
Inventor 赵有贵普文武路广州杨恒东刘体尧
Owner YUNNAN CONSTR & INSTALLATION JOINT STOCK
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