CN214249540U - Water cooling wall penetrating structure for low-temperature heating surface of tower furnace - Google Patents

Water cooling wall penetrating structure for low-temperature heating surface of tower furnace Download PDF

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Publication number
CN214249540U
CN214249540U CN202023113046.4U CN202023113046U CN214249540U CN 214249540 U CN214249540 U CN 214249540U CN 202023113046 U CN202023113046 U CN 202023113046U CN 214249540 U CN214249540 U CN 214249540U
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China
Prior art keywords
low
heating surface
temperature heating
water
tubes
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Application number
CN202023113046.4U
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Chinese (zh)
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
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Harbin Boiler Co Ltd
Huaneng Longdong Energy Co Ltd
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Harbin Boiler Co Ltd
Huaneng Longdong Energy Co Ltd
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Priority to CN202023113046.4U priority Critical patent/CN214249540U/en
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Abstract

A water-cooled wall structure for a low-temperature heating surface of a tower furnace. The existing structure is that the pitch of a low-temperature heating surface arranged above a flue is small, the pitch is mostly between 100 mm and 120mm, and the heating surface is of a welded structure through a wall, so that great difficulty is brought to the maintenance work of the boiler after the boiler is sealed and operates. The utility model discloses the constitution includes: the low-temperature heating surface heat exchanger comprises a group of low-temperature heating surface tubes (4), wherein the group of low-temperature heating surface tubes penetrate through a low-temperature heating surface hanging tube (5) and are connected with a low-temperature heating surface radiating tube (2) through an asymmetric tee joint (6), the low-temperature heating surface radiating tube penetrates through a water wall tube (3) and is connected with a header (1), one end of the asymmetric tee joint is respectively connected with 2 low-temperature heating surface tubes, the other end of the asymmetric tee joint is connected with 1 low-temperature heating surface radiating tube, one low-temperature heating surface radiating tube penetrates through the space among the 2 water wall tubes, the water wall tubes are arranged in parallel and at equal intervals, and every two water wall straight tubes are provided with one water wall bent tube. The utility model is used for tower furnace low temperature heating surface wears water-cooling wall structure.

Description

Water cooling wall penetrating structure for low-temperature heating surface of tower furnace
Technical Field
The utility model relates to a water-cooled wall structure is worn to low temperature heating surface for tower furnace.
Background
The tower type boiler has many advantages compared with an pi type boiler, for example, the flue gas is not turned to and distributed evenly, the steam temperature deviation is small, the horizontal arrangement of the heating surface can automatically drain water, the characteristics of excellent reserve and quick start are achieved, the structure is simple, the occupied area is small, and the like, so that the number of the items for selecting the tower type boiler in domestic power plants is increased day by day in recent years, but the boiler type also has the defects that the pitch of the low-temperature heating surface arranged above the flue is small and is mostly between 100 and 120mm, and the wall penetrating of the heating surface is a welding structure, so that the structure brings great difficulty to the boiler sealing and the maintenance work after the boiler is operated; the structure in the prior art is that the pitch of a low-temperature heating surface arranged above a flue is small, the pitch is mostly between 100 mm and 120mm, and the heating surface is of a welded structure through a wall, so that great difficulty is brought to the boiler sealing and the maintenance work after operation.
Disclosure of Invention
The utility model aims at providing a be used for tower furnace low temperature to receive the hot side and wear water-cooling wall structure, this structure has effectively solved the low temperature and has received the hot side pipe and pass the sealed and big problem of the operation back maintenance degree of difficulty of water-cooling wall pipe.
The above purpose is realized by the following technical scheme:
a water wall structure is worn to be used for tower furnace low temperature heating surface, its constitution includes: the low-temperature heating surface pipe group penetrates through the low-temperature heating surface hanging pipe and is connected with the low-temperature heating surface radiating pipe through an asymmetric tee joint, the low-temperature heating surface radiating pipe penetrates through the water wall pipe and is connected with the header, one end of the asymmetric tee joint is respectively connected with 2 low-temperature heating surface pipes, the other end of the asymmetric tee joint is connected with 1 low-temperature heating surface radiating pipe, 2 water wall pipes penetrate through one low-temperature heating surface radiating pipe, the water wall pipes are arranged in parallel and equidistantly, and every other water wall straight pipe is provided with one water wall bent pipe.
The low-temperature heating surface penetrating water-cooled wall structure for the tower furnace is characterized in that 2 low-temperature heating surface pipes are penetrated among 2 low-temperature heating surface hanging pipes, the low-temperature heating surface diffusing pipes and the low-temperature heating surface hanging pipes are arranged in parallel at equal intervals, and the water-cooled wall pipes are symmetrically arranged in the center of the boiler.
Has the advantages that:
1. the utility model relates to a structure that is used for large-scale power station tower boiler low temperature to receive surface to wear water-cooling wall, this structure is with low temperature heating surface pipe after passing last low temperature heating surface and hanging the pipe, with an asymmetric two-change tee bend structure, it becomes one row to merge two rows of low temperature heating surface pipes, the row number that makes low temperature heating surface pipe pass the water-cooling wall pipe reduces half, the pipe is let according to needs to the bending of every root canal of water-cooling wall pipe simultaneously, bending dimension satisfies low temperature heating surface pipe and passes and leave sealed welding space, the problem that the maintenance degree of difficulty is big after this kind of structure has solved low temperature heating surface pipe and has passed the sealed of water-cooling wall pipe and has moved.
The utility model discloses a water-cooling wall pipe every other root canal is crooked as required and lets the tubular construction, and the bending dimension has improved the manufacturability of product according to the welding needs, satisfies the low temperature and receives the sealing weld operation that the face pipe passed the water-cooling wall pipe, has still satisfied the routine maintenance and repair requirement when having improved product quality, has saved the time for the operator, has improved work efficiency.
The utility model designs a novel tee structure of a tower boiler heating surface through-wall, which combines two rows of low-temperature heating surface tubes into one row, reduces the row number of the water-cooled wall tubes by half, can increase the pitch of the low-temperature heating surface through-wall, is beneficial to the sealing design and construction of the through-wall, has better sealing effect and improves the boiler efficiency; after the pitch is increased, the difficulty of maintenance work is reduced, the investment cost of the boiler is reduced, ash and smoke leakage is reduced, the operating environment of a power plant is improved, and air pollution is reduced.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a sectional view a-a of fig. 1.
Wherein: 1. the system comprises a header, 2 low-temperature heating surface scattered pipes, 3 water-cooled wall pipes, 4 low-temperature heating surface pipes, 5 low-temperature heating surface hanging pipes and 6 asymmetric tee joints.
The specific implementation mode is as follows:
example 1:
a water wall penetrating structure for a low-temperature heating surface of a tower furnace comprises a group of low-temperature heating surface tubes 4, a group of low-temperature heating surface tubes penetrate through a low-temperature heating surface hanging tube 5 and are connected with low-temperature heating surface radiating tubes 2 through asymmetric tee joints 6, the low-temperature heating surface radiating tubes penetrate through water wall tubes 3 and are connected with a header 1, one ends of the asymmetric tee joints are respectively connected with the 2 low-temperature heating surface tubes, the other ends of the asymmetric tee joints are connected with the 1 low-temperature heating surface radiating tubes, 2 water wall tubes penetrate through one low-temperature heating surface radiating tube, the water wall tubes are arranged in parallel and at equal intervals, and every two water wall straight tubes are provided with one water wall bent tube.
Example 2:
according to the structure for penetrating the water wall of the low-temperature heating surface of the tower furnace in the embodiment 1, 2 low-temperature heating surface tubes penetrate among 2 low-temperature heating surface hanging tubes, the low-temperature heating surface dispersion tubes and the low-temperature heating surface hanging tubes are arranged in parallel at equal intervals, and the water wall tubes are symmetrically arranged in the center of the boiler.
Example 3:
the installation method for the low-temperature heating surface through water-cooled wall structure of the tower furnace in the embodiment 1-2 comprises the following steps:
after the low-temperature heating surface pipe passes through the last low-temperature heating surface hanging pipe, an asymmetric tee joint is adopted, wherein branch pipes of the tee joint are respectively connected with the low-temperature heating surface pipes, 1 low-temperature heating surface hanging pipe penetrates through 2 low-temperature heating surface pipes, a main pipe of the tee joint is connected with a low-temperature heating surface radiating pipe, the low-temperature heating surface radiating pipe penetrates through a water wall pipe at the central position of the water wall, 1 upper sealing part and a lower sealing part of 2 water wall pipes are of a bent structure, and the bending size meets the requirement that the low-temperature heating surface pipe penetrates through and leaves a sealed welding space;
the application uses an asymmetric two-to-one three-way structure to combine two rows of low-temperature heating surface pipes into one row, so that the number of rows of the low-temperature heating surface pipes penetrating through the water-cooled wall pipes is reduced by half, meanwhile, every other pipe of the water-cooled wall pipes is bent as required, the bending size meets the requirement that the low-temperature heating surface pipes penetrate through and a sealing welding space is reserved, the structure solves the problems that the sealing of the low-temperature heating surface pipes penetrating through the water-cooled wall pipes and the overhauling difficulty after running are high,
the structure solves the problems that the pitch of the water cooling wall penetrating through the low-temperature heating surface of the tower furnace is small and is mostly between 100 mm and 120mm, and the wall penetrating through the heating surface is of a welding structure, so that the structure brings great difficulty to the maintenance work after the boiler is sealed and operated.

Claims (2)

1. A water wall structure is worn to be used for tower furnace low temperature heating surface, its constitution includes: a set of low temperature heating face pipe, characterized by: the group of low-temperature heating surface tubes penetrate through the low-temperature heating surface hanging tubes and are connected with the low-temperature heating surface radiating tubes through asymmetric tee joints, the low-temperature heating surface radiating tubes penetrate through the water-cooled wall tubes and are connected with the header, one end of each asymmetric tee joint is respectively connected with 2 low-temperature heating surface tubes, the other end of each asymmetric tee joint is connected with 1 low-temperature heating surface radiating tube, 2 water-cooled wall tubes penetrate through one low-temperature heating surface radiating tube, the water-cooled wall tubes are arranged in parallel and equidistantly, and each other water-cooled wall straight tube is provided with one water-cooled wall bent tube.
2. The through water-cooled wall structure for the low-temperature heating surface of the tower furnace as claimed in claim 1, wherein: 2 low-temperature heating surface pipes are arranged between the low-temperature heating surface hanging pipes in a penetrating mode, the low-temperature heating surface pipes, the low-temperature heating surface radiating pipes and the low-temperature heating surface hanging pipes are all arranged in parallel at equal intervals, and the water wall pipes are symmetrically arranged in the center of the boiler.
CN202023113046.4U 2020-12-22 2020-12-22 Water cooling wall penetrating structure for low-temperature heating surface of tower furnace Active CN214249540U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202023113046.4U CN214249540U (en) 2020-12-22 2020-12-22 Water cooling wall penetrating structure for low-temperature heating surface of tower furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202023113046.4U CN214249540U (en) 2020-12-22 2020-12-22 Water cooling wall penetrating structure for low-temperature heating surface of tower furnace

Publications (1)

Publication Number Publication Date
CN214249540U true CN214249540U (en) 2021-09-21

Family

ID=77740653

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202023113046.4U Active CN214249540U (en) 2020-12-22 2020-12-22 Water cooling wall penetrating structure for low-temperature heating surface of tower furnace

Country Status (1)

Country Link
CN (1) CN214249540U (en)

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