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Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region

A four-corner combustion and spiral rising technology is applied in the field of boilers to achieve the effects of solving welding shrinkage, controlling welding deformation and reducing welding deformation.

Active Publication Date: 2007-04-18
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a manufacturing process for the four-corner combustion of the boiler and the water-cooled jacket in the spiral-rising water-cooled wall burner area, so as to solve the welding shrinkage caused by a large number of irregular welding, control the welding deformation, and ensure that the dimensions of each part of the product meet the requirements of the drawings

Method used

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  • Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region
  • Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region
  • Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region

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Embodiment

[0030] The supercritical boiler is burned at four corners, and the water-cooling jacket of the water-cooled wall burner area is spirally ascended. Dimensions: 13734mm in height and 1900mm in width, composed of 252 different elbows,

[0031] As shown in Figures 1 and 2, it is a schematic diagram of the structure of the assembly frame. The assembly frame 8 is composed of a frame 1 and a base frame 4. The frame 1 is vertically arranged on the base frame 4, and the assembly frames are reasonably grouped according to the total length of the product. The length of the general assembly frame is 2 to 3m.

[0032] In the manufacturing process, the present invention controls the size of each elbow to ensure the correctness of 252 different elbows. Considering the welding shrinkage of the flat steel, the welding shrinkage allowance of the length of the pipe is 3-4mm, and the two ends of the pipe are straight pipes. In the specific operation process, the present invention uses the left an...

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Abstract

A manufacturing engineering of a water cooled jacket includes the following steps: dividing the product into small modules, welding modules and then assembling them into an integral one. In the welding technique, the built-in flat steel is set up a welding shrinkage allowance 0.2-0.3 mm and welding adopts a gas-shielded welding. In the manufacture of small modules water-cooled jacket, determining a rational welding shrinkage centre can guarantee the size requirement of burned holes.

Description

technical field [0001] The invention relates to a manufacturing process of a water-cooling jacket in a boiler area with four-corner combustion and a spiral-rising water-cooled wall burner, and belongs to the technical field of boilers. Background technique [0002] In recent years, the supercritical boiler designed and manufactured by the applicant introduced the technology of ALSTOM in the United States, which adopts the four-corner combustion and the water-cooled wall structure of the spiral-rising water-cooled wall burner area. At present, there is no manufacturing precedent in China for this type of water-cooling jacket. technology is incomplete. [0003] Four-corner combustion of supercritical boiler, water-cooling jacket in the burner area of ​​spiral rising water-cooled wall, external dimensions: height 13734mm, width 1900mm, composed of 252 different elbows, and welding and assembling a large number of accessories, assembled with the burner before leaving the factory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23M5/08B23K9/00
Inventor 任一平叶上云张海江徐永兴
Owner SHANGHAI BOILER WORKS