Anti-sulfur acid-resistant long conveying pipeline heat treatment process

A process method and technology of heat treatment equipment, applied in the field of pipeline systems, to achieve the effects of strong operability, improved heat treatment quality, and high work efficiency

Active Publication Date: 2014-12-17
BC P INC CHINA NAT PETROLEUM CORP +2
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Effectively solve the construction problem of non-fixed location pipeline weld heat treatment

Method used

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  • Anti-sulfur acid-resistant long conveying pipeline heat treatment process
  • Anti-sulfur acid-resistant long conveying pipeline heat treatment process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: as figure 1 , figure 2 as shown,

[0025] The heat treatment process for sulfur-resistant and acid-resistant long-distance pipelines uses Jiangsu Yineng heat treatment equipment and uses infrared high-temperature ceramic crawler electric heaters. A complete set of heat treatment equipment is configured as follows: one truck (pulling), one 200KW generator, two temperature control cabinets (each temperature control cabinet can control 6 roads and 6 crossings at the same time, and the control process curve parameters of each road are set separately. set, each work independently) and the corresponding secondary power lines. At the same time, a forklift is specially equipped for heat treatment, which can build temporary access roads to ensure that heat treatment equipment can reach the designated site.

[0026] A thermocouple, a wire 2 and an electric heating sheet 1 are installed on the steel pipe 5 . The temperature measuring head of the thermocouple mus...

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Abstract

The invention relates to an anti-sulfur acid-resistant long conveying pipeline heat treatment process, which belongs to the technical field of a pipe-line system. According to the invention, Jiangsu Yineng heat treatment equipment is selected, an infrared ray high-temperature ceramic crawler type electric heater is employed, a set of complete heat treatment equipment comprises a lorry (transportation), a generator with 200KW, two temperature control cabinets (six crossings can be simultaneously controlled by each temperature control cabinet, each technical curve parameter can be respectively set, and each temperature control cabinet can be independently operated) and a corresponding secondary power line; a forklift is specially equipped for the heat treatment, temporary road can be build, and heat treatment equipment can be ensured to reach the assigned field. The heat treatment process has the advantages of strong operationality, high work efficiency and simple process. The heat treatment construction problem of the non fixed place pipeline weld can be effectively solved.

Description

technical field [0001] The invention relates to a heat treatment process for a sulfur-resistant and acid-resistant long-distance pipeline, which belongs to the technical field of pipeline systems. The invention is aimed at anti-sulfur and anti-acid pipelines, researches detailed welding joint heat treatment construction scheme and construction process method, optimizes and innovates on site, and effectively solves the difficult problem of welding joint heat treatment construction in pipeline construction. Background technique [0002] In the construction of anti-sulfur and anti-acid pipelines, the transmission medium is H 2 S and other corrosive gases. at stress and H 2 Under the joint action of corrosive media such as S, the weld bead is prone to stress corrosion failure, which will seriously affect the safety of pipeline operation. Therefore, post-weld heat treatment is required for all welds to eliminate welding residual stress, prevent delayed cracks, improve the meta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D9/08
Inventor 鲁灿洪亮姚辉高元富黄祯璜
Owner BC P INC CHINA NAT PETROLEUM CORP
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