CN220269409U - Wall formula reheat ware soot blower mounting structure - Google Patents
Wall formula reheat ware soot blower mounting structure Download PDFInfo
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- CN220269409U CN220269409U CN202321890333.7U CN202321890333U CN220269409U CN 220269409 U CN220269409 U CN 220269409U CN 202321890333 U CN202321890333 U CN 202321890333U CN 220269409 U CN220269409 U CN 220269409U
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- wall
- pipe
- soot blower
- water
- reheater
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- 239000004071 soot Substances 0.000 title claims abstract description 100
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000009191 jumping Effects 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims description 34
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- 239000002131 composite material Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Incineration Of Waste (AREA)
Abstract
The utility model provides a wall type reheater soot blower mounting structure, which comprises a first wall type reheater water-penetrating cold wall pipe, a soot blower hole tripping pipe and a second wall type reheater water-penetrating cold wall pipe, wherein two ends of the soot blower hole tripping pipe are respectively connected with the first wall type reheater water-penetrating cold wall pipe and the second wall type reheater water-penetrating cold wall pipe, and the soot blower hole tripping pipe is arranged outside a furnace; the beneficial effects of the utility model are as follows: through arranging two wall-type reheater water-penetrating cold wall pipes, the wall-type reheater water-penetrating cold wall pipes are L-shaped, the vertical part is positioned in the furnace, and the horizontal part extends out of the furnace; the C-shaped soot blower hole jumping pipes are respectively connected with the horizontal part interfaces, and the pipelines of the wall type reheater are wound outside the furnace from the inside of the furnace, so that the water wall pipe and the pipelines of the wall type reheater are separated, the composite close fitting of the water wall and the pipelines of the wall type reheater is avoided, and the wall type reheater is not required to be replaced completely to reconstruct and increase the soot blower.
Description
Technical Field
The utility model relates to the technical field of soot blower installation, in particular to a wall type reheater soot blower installation structure.
Background
In the 600MW subcritical forced circulation boiler, a wall type reheater is arranged, a wall type reheater structure is shown in fig. 1, a water wall pipe and the wall type reheater pipe are welded together through flat steel and round steel, if a soot blower is required to be added in a wall type reheater area, the wall type reheater pipe is required to be cut, and the wall type reheater pipe is limited by a special composite structure of the wall type reheater and the water wall type reheater pipe, and then welded junctions of the wall type reheater pipe in a soot blower hole jump pipe area cannot be welded.
The commonly used soot blower holes are single-layer pipes for pipe jump, and can only meet the pipe jump of the wall-free reheater. If the wall type reheater is used, the wall type reheater and the water cooling wall are welded together, the pipes are tightly connected, and the pipe jump mode of the single-layer pipe is tightly relied on, so that the wall type reheater is not suitable for the jump holes of the double-layer pipe.
Disclosure of Invention
The utility model provides a wall-type reheater soot blower mounting structure, which aims to solve the problem that a soot blower cannot be added in a wall-type reheater area in the prior art.
The utility model discloses a wall type reheater soot blower installation structure, which comprises a first wall type reheater water-passing cold wall pipe, a soot blower hole tripping pipe and a second wall type reheater water-passing cold wall pipe, wherein two ends of the soot blower hole tripping pipe are respectively connected with the first wall type reheater water-passing cold wall pipe and the second wall type reheater water-passing cold wall pipe, the soot blower hole tripping pipe is arranged on the outer side of a furnace, and a soot blower gun barrel sleeve is welded on a hearth sealing box.
On this basis, the first wall type reheater water wall penetrating pipe is L-shaped, the vertical part of the first wall type reheater water wall penetrating pipe is positioned in the furnace, the horizontal part of the first wall type reheater water wall penetrating pipe extends out of the furnace, the second wall type reheater water wall penetrating pipe is L-shaped with the first wall type reheater water wall penetrating pipe mirrored along a horizontal line, the vertical part of the second wall type reheater water wall penetrating pipe is positioned in the furnace, and the horizontal part of the second wall type reheater water wall penetrating pipe extends out of the furnace.
On the basis, the soot blower hole jumping pipe is set to be C-shaped, and two ends of the soot blower hole jumping pipe are respectively connected with the horizontal part interfaces of the first wall type reheater water penetrating cold wall pipe and the second wall type reheater water penetrating cold wall pipe.
The pipeline of the wall type reheater is wound from the inside of the furnace to the outside of the furnace, and the water wall pipe is separated from the pipeline of the wall type reheater, so that the composite close fitting of the water wall and the pipeline of the wall type reheater is avoided.
On the basis, the size of the outer edge of the soot blower hole jumping pipe is 600-1000mm from the central line of the water cooling wall.
The construction space is guaranteed to be inside, and welding operation is convenient.
On the basis, the wall type reheater is provided with a water wall pipe, and a soot blower gun barrel sleeve is welded on a wall type reheater hearth sealing box.
On the basis, the soot blower hole jumping pipe is sealed through a soot blower jumping pipe sealing box arranged on the furnace wall, a sealing box expansion joint is arranged on the lower side of the soot blower jumping pipe sealing box, and a soot blower barrel sleeve supporting piece is arranged on the side face of the soot blower jumping pipe sealing box and used for supporting a soot blower barrel sleeve.
On the basis, the outer side of the soot blower hole jumping pipe is wrapped with an outer guard plate to support the rear part of the soot blower gun barrel sleeve.
On the basis, the rear end of the barrel sleeve of the soot blower is used for being connected with a flange of the soot blower body.
The outer protection plate is wrapped on the outer side of the soot blower hole jump pipe, so that a protection effect is achieved, the soot blower barrel sleeve is used for being connected with the soot blower body flange, and the soot blower sleeve penetrates out of the wall type reheater hole longer, so that a supporting piece is required to be arranged, and the stability of the structure is guaranteed.
On the basis, the length of the soot blower hole jumping pipe outer guard plate from the central line of the water wall pipe is smaller than the length of the soot blower gun barrel sleeve.
On the basis, a first wall type reheater water-penetrating wall pipe and a second wall type reheater water-penetrating wall pipe are respectively provided with a first wall type reheater water-penetrating wall sealing box and a second wall type reheater water-penetrating wall sealing box outside the furnace.
The sealing box is used for sealing the soot blower hole jump pipe, and simultaneously the sealing box expansion joints at the upper side and the lower side of the sealing box at the water cooling wall penetrating position of the second wall type reheater are welded with the pipe, can expand up and down along with the pipe, and are used for absorbing expansion, so that stress is prevented from being blocked, and the water cooling wall is prevented from being pulled apart.
Compared with the prior art, the utility model has the beneficial effects that: through setting up two wall formula reheater water wall pipes, wall formula reheater water wall pipe sets up to "L" type, and vertical portion is located the stove, and the horizontal portion extends to outside the stove, and the soot blower hole of "C" type jumps the pipe and connects the horizontal portion interface respectively, winds the pipeline of wall formula reheater outside the stove from the stove in, and the pipeline of water wall pipe and wall formula reheater separates, has avoided the compound closely laminating of the pipeline of water wall and wall formula reheater, need not to replace the whole soot blower that reforms transform of wall formula reheater.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic diagram of the wall reheater sootblower mounting structure of the present utility model.
In the figure: 1. the water cooling wall pipe is penetrated by the first wall type reheater, the water cooling wall pipe is penetrated by the second wall type reheater, and the water cooling wall pipe is penetrated by the second wall type reheater.
Detailed Description
The utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
A600 MW subcritical control circulating drum boiler of a certain power plant, and a reheater system is provided with a wall type reheater. In order to improve the boiler efficiency and reduce the average coal consumption, improving steam parameters, and respectively improving the temperature of main steam and reheat steam from original 541 ℃/541 ℃ to 605 ℃/603 ℃; to the problem that the lower part of the screen type superheater is easy to coke after the temperature is raised, a soot blower needs to be added at the lower part of the screen, but the lower part of the screen is of a wall type reheater combined water-cooled wall structure, the original water-cooled wall soot blower hole cannot meet the purpose of adding the soot blower, and the transformation is carried out according to the following structure.
The wall type reheater soot blower mounting structure comprises a first wall type reheater water-penetrating wall pipe 1, a soot blower hole jumping pipe 2 and a second wall type reheater water-penetrating wall pipe 3, wherein two ends of the soot blower hole jumping pipe 2 are respectively connected with the first wall type reheater water-penetrating wall pipe 1 and the second wall type reheater water-penetrating wall pipe 3, the soot blower hole jumping pipe 2 is arranged at the outer side of a furnace, the left side is the inner side of the furnace, and the right side is the outer side of the furnace with reference to FIG. 2;
the first wall type reheater water-penetrating cold wall pipe 1 is L-shaped, the vertical part of the first wall type reheater water-penetrating cold wall pipe 1 is positioned in the furnace, the horizontal part of the first wall type reheater water-penetrating cold wall pipe 1 extends to the outside of the furnace, the second wall type reheater water-penetrating cold wall pipe 3 is L-shaped which is mirror image of the first wall type reheater water-penetrating cold wall pipe 1 along a horizontal line, the vertical part of the second wall type reheater water-penetrating cold wall pipe 3 is positioned in the furnace, the horizontal part of the second wall type reheater water-penetrating cold wall pipe 3 extends to the outside of the furnace, a pipe of the wall type reheater is wound to the outside of the furnace from the inside of the furnace, a soot blower hole jump pipe 2 is arranged at the outside of the furnace, two ends of the soot blower hole jump pipe 2 are respectively connected with the horizontal part interfaces of the first wall type reheater water-penetrating cold wall pipe 1 and the second wall type reheater water-penetrating cold wall pipe 3, and the pipe of the wall type reheater are prevented from being closely attached.
The size of the soot blower hole jumping pipe 2 from the central line of the water-cooled wall is 800mm, a construction space is guaranteed to be inside, the soot blower hole jumping pipe 2 is sealed through a soot blower jumping pipe sealing box 6, casting materials are arranged in the soot blower jumping pipe sealing box 6, flue gas in a furnace is prevented from leaking out of the furnace, sealing box expansion joints 7 are arranged on two sides of the soot blower jumping pipe sealing box 6, and the sealing box expansion joints are used for absorbing thermal expansion displacement between the soot blower hole jumping pipe 2 outside the furnace and the water-cooled wall;
the outer side of the soot blower hole tripping pipe 2 is wrapped with an outer guard plate, so that a protection effect is achieved, a soot blower gun barrel sleeve 5 is welded on a hearth sealing box, the soot blower gun barrel sleeve 5 is used for being connected with a soot blower body flange, the length of the outer guard plate from the central line of a water wall pipe 10 is smaller than that of the soot blower gun barrel sleeve, a soot blower gun barrel sleeve supporting piece 4 is arranged on the soot blower hole tripping pipe sealing box 6 and used for supporting the soot blower sleeve 5, and as the soot blower sleeve 5 penetrates out of a wall type reheater hole longer, a supporting piece is required to be arranged, the stability of the structure is guaranteed, and the soot blower gun barrel sleeve supporting piece 4 is welded around the soot blower gun barrel sleeve 5 for 4 pieces;
the first wall type reheater water-penetrating wall pipe 1 and the second wall type reheater water-penetrating wall pipe 3 are respectively provided with a first wall type reheater water-penetrating wall sealing box 8 and a second wall type reheater water-penetrating wall sealing box 9 outside the furnace, the first wall type reheater water-penetrating wall sealing box 8 and the second wall type reheater water-penetrating wall sealing box 9 are used for sealing the soot blower hole jumping pipe 2, and simultaneously, the second wall type reheater water-penetrating wall sealing box 9 is welded with the pipe through the upper and lower sealing box expansion joints 7, can expand up and down along with the pipe, and are used for absorbing expansion and avoiding stress blocking to cause the cracking of the water-cooling wall.
In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," "cushioned," and the like are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
While the foregoing description illustrates and describes the preferred embodiments of the present utility model, as noted above, it is to be understood that the utility model is not limited to the forms disclosed herein but is not to be construed as excluding other embodiments, and that various other combinations, modifications and environments are possible and may be made within the scope of the inventive concepts described herein, either by way of the foregoing teachings or by those of skill or knowledge of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (10)
1. A wall formula reheat soot blower mounting structure, its characterized in that: comprises a first wall type reheater water-penetrating wall pipe (1), a soot blower hole jump pipe (2) and a second wall type reheater water-penetrating wall pipe (3), the two ends of the soot blower hole jumping pipe (2) are respectively connected with a first wall type reheater water penetrating cold wall pipe (1) and a second wall type reheater water penetrating cold wall pipe (3), the soot blower hole jumping pipe (2) is arranged on the outer side of the furnace, and a soot blower gun barrel sleeve (5) is welded on a hearth sealing box.
2. The wall reheater soot blower mounting structure according to claim 1, wherein: the water wall pipe (1) is L-shaped, the vertical part of the water wall pipe (1) is positioned in the furnace, the horizontal part of the water wall pipe (1) extends to the outside of the furnace, the water wall pipe (3) is L-shaped, which is mirrored along the horizontal line, of the water wall pipe (1) of the first wall type, the vertical part of the water wall pipe (3) of the second wall type reheater is positioned in the furnace, and the horizontal part of the water wall pipe (3) of the second wall type reheater extends to the outside of the furnace.
3. The wall reheater soot blower mounting structure according to claim 2, wherein: the soot blower hole jumping pipe (2) is arranged to be C-shaped, and two ends of the soot blower hole jumping pipe (2) are respectively connected with horizontal part interfaces of the first wall type reheater water penetrating cold wall pipe (1) and the second wall type reheater water penetrating cold wall pipe (3).
4. The wall reheater soot blower mounting structure according to claim 3, wherein: the size of the outer edge of the soot blower hole jumping pipe (2) is 600-1000mm from the central line of the water cooling wall.
5. The wall reheater soot blower mounting structure of claim 4, wherein: the wall type reheater is provided with a water wall pipe (10), and a soot blower gun barrel sleeve (5) is welded on a wall type reheater hearth sealing box.
6. The wall reheater soot blower mounting structure of claim 5, wherein: the soot blower hole tripping pipe (2) is sealed through a soot blower tripping pipe sealing box (6) arranged on a furnace wall, a sealing box expansion joint (7) is arranged on the lower side of the soot blower tripping pipe sealing box (6), and a soot blower barrel sleeve supporting piece (4) is arranged on the side face of the soot blower tripping pipe sealing box (6) and used for supporting a soot blower barrel sleeve (5).
7. The wall reheater soot blower mounting structure of claim 6, wherein: the outer side of the soot blower hole jumping pipe (2) is wrapped with an outer guard plate to support the rear part of the soot blower gun barrel sleeve (5).
8. The wall reheater soot blower mounting structure of claim 7, wherein: the rear end of the soot blower gun barrel sleeve (5) is used for being connected with a soot blower body flange.
9. The wall reheater soot blower mounting structure of claim 8, wherein: the length of the outer guard plate of the soot blower hole jumping pipe (2) from the central line of the water wall pipe (10) is smaller than the length of the soot blower barrel sleeve (5).
10. The wall reheater soot blower mounting structure according to claim 1, wherein: the first wall type reheater water-penetrating wall pipe (1) and the second wall type reheater water-penetrating wall pipe (3) are respectively provided with a first wall type reheater water-penetrating wall sealing box (8) and a second wall type reheater water-penetrating wall sealing box (9) outside the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890333.7U CN220269409U (en) | 2023-07-18 | 2023-07-18 | Wall formula reheat ware soot blower mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321890333.7U CN220269409U (en) | 2023-07-18 | 2023-07-18 | Wall formula reheat ware soot blower mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220269409U true CN220269409U (en) | 2023-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321890333.7U Active CN220269409U (en) | 2023-07-18 | 2023-07-18 | Wall formula reheat ware soot blower mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220269409U (en) |
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2023
- 2023-07-18 CN CN202321890333.7U patent/CN220269409U/en active Active
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