CN220601551U - Water cooling wall of boiler - Google Patents
Water cooling wall of boiler Download PDFInfo
- Publication number
- CN220601551U CN220601551U CN202322137616.0U CN202322137616U CN220601551U CN 220601551 U CN220601551 U CN 220601551U CN 202322137616 U CN202322137616 U CN 202322137616U CN 220601551 U CN220601551 U CN 220601551U
- Authority
- CN
- China
- Prior art keywords
- water
- horizontal grid
- guard plate
- grid protection
- boiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 36
- 238000003466 welding Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000009991 scouring Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Abstract
The utility model discloses a boiler water-cooling wall, which comprises a plurality of water-cooling pipes which are parallel to each other and vertically arranged, wherein adjacent pairs of water-cooling pipes are alternately connected with a horizontal grid protection plate through a connecting piece, a U-shaped groove is formed between the pair of water-cooling pipes by the horizontal grid protection plate, the practical welding parts at the contact positions of the two sides of the U-shaped groove and the water-cooling pipes are fixed, the contact positions of the centers and the edges of the horizontal grid protection plate and the connecting piece are fixedly connected by adopting electric welding parts, and the vertical grid protection plate is vertically arranged between each pair of horizontal grid protection plates.
Description
Technical Field
The utility model relates to the technical field of boiler water-cooling walls, in particular to a boiler water-cooling wall.
Background
The water cooling wall is a main heated part of the boiler, is composed of a plurality of rows of steel pipes and is distributed around a boiler hearth, flowing water or steam is arranged in the water cooling wall, the outside receives heat of flame of the boiler hearth, the heat of radiation of high-temperature combustion products in the hearth is mainly absorbed, working media ascend in the water cooling wall and are heated and evaporated, and the water cooling wall is mainly divided into three types of light pipes, films and thorns.
The utility model patent with the publication number of CN204176675U discloses a novel boiler water wall, which comprises water wall pipes, wherein the water wall pipes are welded and connected by flat steel and half-pipe connectors according to preset proportion alternately to form a whole water wall; the half-pipe type connecting piece is formed by cutting steel pipes or folding steel plates.
The utility model has the defects that when the boiler operates, high-flow wall-attached ash flows are generated on the surfaces of the vertical water wall tube rows and the surfaces of the grooves between the tubes from top to bottom, and under the continuous flushing of the high-flow wall-attached ash flows, the surface of the water wall heating surface tube is severely worn, and the leakage of the water wall heating surface tube due to tube explosion can be caused for a long time.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a boiler water wall, which solves the problems in the prior art.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a boiler water-cooled wall, includes a plurality of mutually parallel and vertical perpendicular installation's water-cooled tube, adjacent a pair of connect in turn through connecting piece and horizontal grid guard plate between the water-cooled tube, horizontal grid guard plate is a pair of open between the water-cooled tube has U type groove, U type groove both sides with water-cooled tube contact department uses welding portion to fix, horizontal grid guard plate central authorities and edge with connecting piece contact department all adopts electric welding portion to carry out fixed connection, every pair install perpendicular grid guard plate perpendicularly between the horizontal grid guard plate, perpendicular grid guard plate with connecting piece with all adopt welding portion to carry out fixed connection between the horizontal grid guard plate.
Preferably, the welded portion is provided with a chamfer.
Preferably, the horizontal grid protection plate is horizontally arranged between the water cooling pipes, and the connecting piece is vertically arranged between the water cooling pipes.
Preferably, the side wall surface end surface of the vertical grid protection plate and the side wall surface end surface of the horizontal grid protection plate are located on the same plane.
Advantageous effects
The utility model provides a boiler water wall, which has the following beneficial effects: when the device is used, the horizontal grid protection plates and the connecting pieces are connected in a staggered mode between the water cooling pipes, the U-shaped grooves are formed between the water cooling pipes by the horizontal grid protection plates, when the water cooling pipes are heated to expand, the U-shaped grooves can buffer the expansion of metal to prevent pipe explosion, meanwhile, the grid protection plates formed by the horizontal grid protection plates and the vertical grid protection plates can reduce the speed of the wall-attached ash flow, reduce the scouring abrasion of the wall-attached ash flow to the water cooling wall, and prolong the service life.
Drawings
FIG. 1 is a schematic view of a boiler water wall according to the present utility model.
In the figure: 1. a water-cooled tube; 2. a horizontal grid guard; 3. a U-shaped groove; 4. a welding part; 5. a connecting piece; 6. an electric welding part; 7. and (5) a vertical grid protection plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a boiler water wall technical scheme: the utility model provides a boiler water-cooled wall, includes a plurality of mutually parallel and vertical perpendicular installation's water-cooled tube 1, adjacent a pair of connect in turn through connecting piece 5 and horizontal grid guard plate 2 between the water-cooled tube 1, horizontal grid guard plate 2 is a pair of open between the water-cooled tube 1 has U type groove 3, U type groove 3 both sides with water-cooled tube 1 contact department uses welding portion 4 to fix, horizontal grid guard plate 2 central authorities and edge with connecting piece 5 contact department all adopts electric welding portion 6 to carry out fixed connection, every pair of perpendicular grid guard plate 7 is installed perpendicularly between the horizontal grid guard plate 2, perpendicular grid guard plate 7 with all adopt welding portion 4 to carry out fixed connection between the horizontal grid guard plate 2.
Further, the welding part 4 is provided with a chamfer, so that the air flow resistance is reduced.
Further, the horizontal grid protection plate 2 is horizontally installed between the water cooling pipes 1, and the connecting piece 5 is vertically installed between the water cooling pipes 1.
Furthermore, the end face of the side wall surface of the vertical grid protection plate 7 and the end face of the side wall surface of the horizontal grid protection plate 2 are positioned on the same plane, so that the vertical grid protection plate is formed to reduce the scouring abrasion of the wall-attached ash flow.
Examples: when the device is used, a plurality of horizontal grid protection plates 2, vertical grid protection plates 7 and connecting pieces 5 are fixedly arranged on the outer side wall surfaces of a plurality of water cooling pipes 1 according to the sequence.
Adopt welded part 4 to carry out fixed connection between horizontal grid guard plate 2 and the water-cooled tube 1, increase the fixed action between horizontal grid guard plate 2 and the water-cooled tube 1, when the water-cooled tube 1 when being heated and taking place the metal expansion, the preferential position to U type groove 3 place expands, all adopt connecting piece 5 to connect between the water-cooled tube 1 if, water-cooled tube 1 produces the pipe bursting phenomenon easily after water-cooled tube 1 and connecting piece 5 carry out the metal expansion simultaneously, if have U type groove 3 exist then avoided the deformation that extrudees each other and produce even pipe bursting after the metal expansion.
The electric welding parts 6 are used for fixedly connecting the horizontal grid protection plates 2 and the connecting pieces 5, and the movable gaps between the horizontal grid protection plates 2 and the connecting pieces 5 are also provided when the fixing force of the horizontal grid protection plates 2 is given, so that extrusion after expansion is prevented.
The horizontal grid protection plates 2 and the vertical grid protection plates 7 are installed in a staggered mode to form a grid-shaped protection structure, the speed of the high-flow adherence ash flow in the furnace along the connecting flat plate is reduced after the high-flow adherence ash flow meets the grid protection structure, the adherence ash thickness of the surface of the water cooling wall tube row is changed, the scouring of the adherence ash flow to the wall surface of the water cooling tube 1 is reduced, the abrasion of the water cooling tube 1 is reduced, and the service life of the water cooling tube 1 is prolonged.
The device is also convenient to maintain, the horizontal grid protection plate 2 and the vertical grid protection plate 7 deform when damaged, damage investigation and replacement are convenient, and maintenance cost is reduced.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
Claims (4)
1. The utility model provides a boiler water-cooled wall, includes a plurality of water-cooled tubes (1) of parallel and vertical perpendicular installation each other, its characterized in that, adjacent a pair of through connecting piece (5) and horizontal grid guard plate (2) are connected in turn between water-cooled tube (1), horizontal grid guard plate (2) are a pair of open between water-cooled tube (1) have U type groove (3), U type groove (3) both sides with water-cooled tube (1) contact department uses welding portion (4) to fix, horizontal grid guard plate (2) central authorities and edge with connecting piece (5) contact department all adopts electric welding portion (6) to carry out fixed connection, every a pair of perpendicular grid guard plate (7) are installed perpendicularly between horizontal grid guard plate (2), perpendicular grid guard plate (7) with all adopt welding portion (4) to carry out fixed connection between horizontal grid guard plate (2).
2. A boiler water wall according to claim 1, characterized in that the welded portion (4) is provided with a chamfer.
3. A boiler water wall according to claim 1, characterized in that the horizontal grid protection plates (2) are horizontally mounted between the water cooling tubes (1), and the connecting pieces (5) are vertically mounted between the water cooling tubes (1).
4. A boiler water wall according to claim 1, characterized in that the side wall face end face of the vertical grid protection plate (7) and the side wall face end face of the horizontal grid protection plate (2) are located on the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137616.0U CN220601551U (en) | 2023-08-09 | 2023-08-09 | Water cooling wall of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322137616.0U CN220601551U (en) | 2023-08-09 | 2023-08-09 | Water cooling wall of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220601551U true CN220601551U (en) | 2024-03-15 |
Family
ID=90164017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322137616.0U Active CN220601551U (en) | 2023-08-09 | 2023-08-09 | Water cooling wall of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220601551U (en) |
-
2023
- 2023-08-09 CN CN202322137616.0U patent/CN220601551U/en active Active
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| GR01 | Patent grant |