Water wall penetrating structure for low-temperature heating surface of tower furnace and installation method

A heating surface and wall structure technology, applied in boiler water pipes, combustion methods, steam boilers, etc., can solve problems such as difficult maintenance, reduce ash leakage, improve operating environment, and improve product quality.

Pending Publication Date: 2021-03-09
华能陇东能源有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a structure and installation method for the low-temperature heating surface of the tower furnace to penetrate the water-cooled wall. This structure effectively solves the problems of sealing the low-temperature heating surface tube through the water-cooled wall tube and difficult maintenance after operation.

Method used

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  • Water wall penetrating structure for low-temperature heating surface of tower furnace and installation method
  • Water wall penetrating structure for low-temperature heating surface of tower furnace and installation method
  • Water wall penetrating structure for low-temperature heating surface of tower furnace and installation method

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Effect test

Embodiment 1

[0018] A structure for the low-temperature heating surface of a tower furnace to pass through the water-cooled wall, a set of low-temperature heating surface tubes 4, a set of low-temperature heating surface tubes passing through the low-temperature heating surface hanging tube 5 and connected to the low-temperature heating surface through an asymmetric tee 6 The diffuse pipe 2 on the heating surface is connected, and the diffuse pipe on the low-temperature heating surface passes through the water-cooled wall pipe 3 and is connected to the header 1. One end of the asymmetric tee is respectively connected to two low-temperature heating surface pipes, and the other end is connected to One of the low-temperature heating surface diffuser tubes, one of the low-temperature heating surface diffuser tubes passes between the two water-cooled wall tubes, and the water-cooled wall tubes are arranged in parallel and equidistant, wherein every other water-cooled wall tube The straight pipe ...

Embodiment 2

[0020] According to the structure described in Example 1 for the low-temperature heating surface of the tower furnace to pass through the water-cooled wall, two of the low-temperature heating surface tubes are passed between the two hanging tubes of the low-temperature heating surface, and the low-temperature heating surface The surface tubes, the diffuse tubes on the low-temperature heating surface, and the hanging tubes on the low-temperature heating surface are arranged in parallel and equidistant, and the water-cooled wall tubes are symmetrically arranged around the center of the boiler.

Embodiment 3

[0022] An installation method for the low-temperature heating surface of a tower furnace through a water-cooled wall structure described in Embodiment 1-2, the method includes the following steps:

[0023] After passing the low-temperature heating surface pipe through the last low-temperature heating surface hanging pipe, an asymmetric tee is used, in which the position of the branch pipe of the three-way is connected to the low-temperature heating surface pipe respectively, and between the two low-temperature heating surface pipes There is one low-temperature heating surface hanging pipe, the position of the three-way main pipe is connected to the low-temperature heating surface diffuse pipe, the low-temperature heating surface diffuse pipe at the center of the water-cooled wall passes through the water-cooled wall pipe, and the two described water-cooled wall pipes One of the upper and lower seals is a curved structure, and the bending size meets the low-temperature heating s...

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PUM

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Abstract

The invention provides a water wall penetrating structure for a low-temperature heating surface of a tower furnace and an installation method. According to an existing structure, the pitch of the low-temperature heating surface arranged above a flue is small and is mostly between 100 and 120mm, and a heating surface penetrating wall is of a welding structure, so that the structure brings great difficulty to boiler sealing and maintenance work after operation. The water wall penetrating structure comprises a set of low-temperature heating surface pipes (4), wherein the set of low-temperature heating surface pipes penetrate through a low-temperature heating surface hanging pipe (5) and are connected with a low-temperature heating surface scattered pipe (2) through an asymmetric tee joint (6); the low-temperature heating surface scattered pipe penetrates through water wall pipes (3) and is connected with a header (1); one end of the asymmetric tee joint is connected with two low-temperature heating surface pipes, and the other end of the asymmetric tee joint is connected with one low-temperature heating surface scattered pipe; one low-temperature heating surface scattered pipe penetrates between the two water wall pipes; the water wall pipes are arranged in parallel at equal intervals; and a water wall bent pipe is arranged every other water wall straight pipe. The invention is used for the water wall penetrating structure for the low-temperature heating surface of the tower furnace.

Description

technical field [0001] The invention relates to a structure and an installation method for passing through a water-cooled wall on a low-temperature heating surface of a tower furnace. Background technique [0002] Compared with the п-type boiler, the tower boiler has many advantages, such as the flue gas does not turn to the uniform distribution, the deviation of the steam temperature is small, the horizontal arrangement of the heating surface can be self-draining, it has excellent standby and fast start-up characteristics, and the structure is simple and the floor space is small. Therefore, In recent years, domestic power plants have more and more projects choosing tower furnace type, but this type of furnace also has its shortcomings. The pitch of the low-temperature heating surface arranged above the flue is small, mostly between 100~120mm, and the heating surface The wall penetration is a welded structure, which brings great difficulties to the boiler sealing and mainten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B31/08F22B37/10F23M5/08
CPCF22B31/08F22B37/105F23M5/08
Inventor 白小元乔丽英颜廷锐梁祖雄曹宇翔李亚林董清梅王慧文龙志云商宇薇
Owner 华能陇东能源有限责任公司
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