CN211204018U - Boiler water-cooled wall of boiler smoke exhaust channel - Google Patents
Boiler water-cooled wall of boiler smoke exhaust channel Download PDFInfo
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- CN211204018U CN211204018U CN201922240041.9U CN201922240041U CN211204018U CN 211204018 U CN211204018 U CN 211204018U CN 201922240041 U CN201922240041 U CN 201922240041U CN 211204018 U CN211204018 U CN 211204018U
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Abstract
The utility model relates to the technical field of boilers, in particular to a boiler smoke exhaust channel boiler water wall, which comprises a plurality of groups of water wall tubes, wherein the water wall tubes are arranged at the inner side of the boiler wall, a plurality of groups of connecting plates are fixedly connected among the water wall tubes, one side of the water wall tube far away from the boiler wall is fixedly connected with a protective net frame, the inside of the protective net frame is fixedly connected with a protective net, and one side surface of the protective net frame far away from the boiler wall is fixedly connected with a plurality of groups of flow guide fins; the protective net is arranged on the outer side of the water wall, so that the water wall pipe can be effectively prevented from being abraded by fluid in the boiler, the wall-attached flow and the vortex flow are prevented from directly abrading the water wall pipe, the abrasion rate of the water wall pipe is greatly reduced, and the leakage and pipe explosion of the water wall pipe can be effectively prevented; meanwhile, the protective screen is isolated from the water wall pipe through the fixing plate, so that most of ash can be blocked and is not in direct contact with the heating surface, and the phenomenon of coking caused by bonding of a large amount of ash after being cooled and solidified can be prevented.
Description
Technical Field
The utility model relates to a boiler technical field specifically is a boiler smoke exhausting channel boiler water-cooling wall.
Background
The water wall is called 'water wall tube', old called 'water wall', also called 'riser'. The boiler heating surface is generally vertically paved on the inner wall surface of a furnace wall and is mainly used for absorbing radiant heat emitted by flame and high-temperature flue gas in the furnace. Is the main type of the evaporation heating surface of various modern boilers and is also the basic component in a boiler water circulation loop. The cooling and the furnace wall protection are realized.
The water-cooled wall is composed of a plurality of rows of steel pipes and is distributed around the boiler furnace. The inside of the furnace is flowing water or steam, and the outside receives the heat of the flame of the boiler furnace. Mainly absorbs the radiation heat of high-temperature combustion products in the hearth, and the working medium rises in the hearth and is heated and evaporated.
The water wall may have leakage and pipe explosion phenomena during the use process, and the surface coking of the water wall is one of the main reasons. Boiler coking refers to the phenomenon that ash slag is adhered to a furnace wall and a heating surface after being melted at high temperature, and the central temperature of combustion flame in a hearth ranges from 1500 ℃ to 1700 ℃. The ash in the fuel melts mostly into a liquid or softened state at such high temperatures. Due to the heat absorption of the water wall, the temperature is lower from the center of the flame to the outside and is closer to the water wall. Under normal conditions, as the temperature decreases, the ash will change from a liquid state to a softened state and further to a solid state. If the ash remains softened when it encounters the heated surface, it will cool and adhere to the heated surface, forming coke.
Meanwhile, the water wall tube is subjected to abrasion caused by scouring and impact of fluid consisting of bed materials and ash in the boiler, wherein the downward fluid near the water wall can form a wall-attached flow, and when the downward fluid meets welding spots of the water wall in the flowing process, a vortex flow can be generated, so that the water wall tube is seriously abraded, and the abrasion is also one of important reasons for leakage and tube explosion of the water wall.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a boiler flue gas channel boiler water-cooling wall to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a boiler smoke exhaust channel boiler water-cooling wall, includes multiunit water wall pipe, water wall pipe sets up at boiler wall inboard, multiunit fixedly connected with connecting plate between the water wall pipe, one side fixedly connected with protection net frame that boiler wall was kept away from to the water wall pipe, the inside fixedly connected with protection network of protection net frame, one side fixed surface who boiler wall was kept away from to the protection net frame is connected with multiunit water conservancy diversion fin.
Preferably, a supporting plate is fixedly connected to the surface of one side, close to the boiler wall, of the connecting plate, and the supporting plate is matched with the boiler wall.
Preferably, a fixing plate is fixedly connected between the connecting plate and the protective net frame, and the fixing plate comprises a transverse fixing plate and a vertical fixing plate.
Preferably, the guide fins comprise transverse wear-resistant guide fins and vertical wear-resistant guide fins.
Preferably, the transverse wear-resistant guide fins and the protective screen frame form an included angle of 90 degrees.
Preferably, the vertical wear-resistant guide fins comprise middle fins and side fins, an included angle of 90 degrees is formed between the middle fins and the protective screen frame, and the side fins comprise left side fins and right side fins.
Preferably, the left side fin and the right side fin are respectively located on the left side and the right side of the middle fin, and the included angle between the left side of the left side fin and the right side of the right side fin and the protective screen frame is α.
Preferably, the angle α is 30 ° -45 °.
Preferably, the water wall tube is located the upper end fixedly connected with abrasionproof tile of horizontal fixed plate.
Preferably, a refractory heat-insulating material is arranged between the connecting plate and the boiler wall.
Compared with the prior art, the beneficial effects of the utility model are that:
1) according to the boiler water wall of the boiler smoke exhaust channel, the protective net is arranged on the outer side of the water wall, so that the water wall pipe can be effectively prevented from being abraded by fluid in the boiler, the wall-attached flow and the vortex flow are prevented from directly abrading the water wall pipe, the abrasion rate of the water wall pipe is greatly reduced, and the phenomena of leakage and pipe explosion of the water wall pipe can be effectively prevented; meanwhile, the protective screen is isolated from the water wall pipe through the fixing plate, so that most of ash can be blocked and is not in direct contact with the heating surface, and the phenomenon of coking caused by bonding of a large amount of ash after being cooled and solidified can be prevented.
2) This boiler smoke exhaust channel boiler water-cooling wall through setting up water conservancy diversion fin, can lead to the fluid in the boiler, reduces the fluid to the wearing and tearing of protection network and water-cooling wall pipe, and its lateral part fin passes through α's angle setting, can alleviate the cyclic resistance of side fluid, suppresses the production of vortex flow, protection network and water-cooling wall pipe, has reduced the wearing and tearing that the fluid caused.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic perspective view of the refractory insulating material of the present invention;
fig. 3 is a top view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1 water wall pipe, 2 boiler walls, 3 connecting plates, 4 protective net frames, 5 protective nets, 6 transverse wear-resistant guide fins, 7 supporting plates, 8 vertical wear-resistant guide fins, 9 wear-resistant tiles, 10 fixing plates and 11 fireproof heat-insulating materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to 3, the present invention provides a technical solution: a boiler smoke exhaust channel boiler water wall comprises a plurality of groups of water wall tubes 1, wherein the water wall tubes 1 are arranged on the inner side of a boiler wall 2, a connecting plate 3 is fixedly connected among the groups of water wall tubes 1, one side, far away from the boiler wall 2, of each water wall tube 1 is fixedly connected with a protective net frame 4, the inner part of each protective net frame 4 is fixedly connected with a protective net 5, the surface, far away from the boiler wall 2, of one side of each protective net frame is fixedly connected with a plurality of groups of flow guide fins, the protective net 5 is arranged on the outer side of each water wall tube 1, so that fluid in the boiler can be effectively prevented from wearing the water wall tubes 1, the water wall tubes 1 are prevented from being directly worn by facing flow and vortex flow, the wear rate of the water wall tubes 1 is greatly reduced, and; meanwhile, the protective screen 5 is isolated from the water wall tube 1 through the fixing plate 10, so that most of ash can be blocked and is not in direct contact with a heating surface, and a large amount of ash can be prevented from being bonded after being cooled and solidified to cause a large amount of coking.
Wherein, the connecting plate 3 is close to 2 side fixed surface of boiler wall and is connected with fagging 7, and fagging 7 and boiler wall 2 cooperate, and fagging 7 supports water wall pipe 1 to the setting of the fire-resistant insulation material of being convenient for.
The fixing plate 10 is fixedly connected between the connecting plate 3 and the protective screen frame 4, the fixing plate 10 comprises a transverse fixing plate and a vertical fixing plate, the guide fins comprise a transverse wear-resistant guide fin 6 and a vertical wear-resistant guide fin 8, the transverse wear-resistant guide fin 6 and the protective screen frame 4 form an included angle of 90 degrees, the vertical wear-resistant guide fin 8 comprises a middle fin and a side fin, the middle fin and the protective screen frame 4 form an included angle of 90 degrees, the side fin comprises a left side fin and a right side fin, the left side fin and the right side fin are respectively located on the left side and the right side of the middle fin, included angles between the right side of the left side fin and the protective screen frame are α, the angle α is 30 degrees, by arranging the guide fins, fluid in the boiler can be guided, abrasion of the fluid to the protective screen 5 and the water-cooling wall tube 1 is reduced, the side fins are arranged through the angle of α, circulation resistance of the side fluid on the side wall can be reduced, generation of vortex flow is inhibited, the protective screen 5.
Wherein, the water wall pipe 1 is located the upper end fixedly connected with abrasionproof tile 9 of horizontal fixed plate.
Wherein, a refractory heat-insulating material 11 is arranged between the connecting plate 3 and the boiler wall 2.
Wherein, the protective net 5 is made of refractory material.
Example two
Referring to fig. 1 to 3, the present invention provides a technical solution: a boiler smoke exhaust channel boiler water wall comprises a plurality of groups of water wall tubes 1, wherein the water wall tubes 1 are arranged on the inner side of a boiler wall 2, a connecting plate 3 is fixedly connected among the groups of water wall tubes 1, one side, far away from the boiler wall 2, of each water wall tube 1 is fixedly connected with a protective net frame 4, the inner part of each protective net frame 4 is fixedly connected with a protective net 5, the surface, far away from the boiler wall 2, of one side of each protective net frame is fixedly connected with a plurality of groups of flow guide fins, the protective net 5 is arranged on the outer side of each water wall tube 1, so that fluid in the boiler can be effectively prevented from wearing the water wall tubes 1, the water wall tubes 1 are prevented from being directly worn by facing flow and vortex flow, the wear rate of the water wall tubes 1 is greatly reduced, and; meanwhile, the protective screen 5 is isolated from the water wall tube 1 through the fixing plate 10, so that most of ash can be blocked and is not in direct contact with a heating surface, and a large amount of ash can be prevented from being bonded after being cooled and solidified to cause a large amount of coking.
Wherein, the connecting plate 3 is close to 2 side fixed surface of boiler wall and is connected with fagging 7, and fagging 7 and boiler wall 2 cooperate, and fagging 7 supports water wall pipe 1 to the setting of the fire-resistant insulation material of being convenient for.
The fixing plate 10 is fixedly connected between the connecting plate 3 and the protective screen frame 4, the fixing plate 10 comprises a transverse fixing plate and a vertical fixing plate, the guide fins comprise a transverse wear-resistant guide fin 6 and a vertical wear-resistant guide fin 8, the transverse wear-resistant guide fin 6 and the protective screen frame 4 form an included angle of 90 degrees, the vertical wear-resistant guide fin 8 comprises a middle fin and a side fin, the middle fin and the protective screen frame 4 form an included angle of 90 degrees, the side fin comprises a left side fin and a right side fin, the left side fin and the right side fin are respectively located on the left side and the right side of the middle fin, included angles between the right side of the left side fin and the protective screen frame are α, the angle α is 45 degrees, by arranging the guide fins, fluid in the boiler can be guided, abrasion of the fluid to the protective screen 5 and the water-cooling wall tube 1 is reduced, the side fins are arranged through the angle of α, circulation resistance of the side fluid on the side wall can be reduced, generation of vortex flow is inhibited, the protective screen 5.
Wherein, the water wall pipe 1 is located the upper end fixedly connected with abrasionproof tile 9 of horizontal fixed plate.
Wherein, a refractory heat-insulating material is arranged between the connecting plate 3 and the boiler wall 2.
Wherein, the protective net 5 is made of refractory material.
The working principle is that when the boiler water wall of the boiler smoke exhaust channel is used, the protective screen 5 is arranged on the outer side of the water wall tube 1, so that abrasion of fluid in the boiler to the water wall tube 1 can be effectively prevented, the water wall tube 1 is prevented from being directly abraded by a wall-attached flow and a vortex flow, the abrasion rate of the water wall tube 1 is greatly reduced, the leakage and tube explosion of the water wall tube 1 can be effectively prevented, meanwhile, the protective screen 5 is isolated from the water wall tube 1 by the fixing plate 10, most of ash can be isolated and is not in direct contact with a heated surface, a large amount of ash can be prevented from being bonded after being cooled and solidified, and a large amount of coking phenomenon can be prevented, the fluid in the boiler can be guided by arranging the flow guide fins, the abrasion of the fluid to the protective screen 5 and the water wall tube 1 is reduced, the side fins are arranged at an angle of α, the circulation resistance of the side fluid can be reduced, the generation of the vortex flow is inhibited.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a boiler smoke exhaust channel boiler water wall, includes multiunit water wall pipe (1), water wall pipe (1) sets up at boiler wall (2) inboardly, its characterized in that, multiunit fixedly connected with connecting plate (3) between water wall pipe (1), one side fixedly connected with protection net frame (4) of boiler wall (2) are kept away from in water wall pipe (1), inside fixedly connected with protection network (5) of protection net frame (4), one side fixed surface who boiler wall (2) were kept away from to the protection net frame is connected with multiunit water conservancy diversion fin.
2. The boiler smoke evacuation channel boiler water wall according to claim 1, wherein a supporting plate (7) is fixedly connected to a surface of the connecting plate (3) close to one side of the boiler wall (2), and the supporting plate (7) is matched with the boiler wall (2).
3. A boiler flue boiler water wall according to claim 1, characterized in that a fixing plate (10) is fixedly connected between the connecting plate (3) and the protective screen frame (4), and the fixing plate (10) comprises a horizontal fixing plate and a vertical fixing plate.
4. A boiler water cooled wall of a boiler smoke evacuation channel according to claim 1, characterized in that said guide fins comprise horizontal wear resistant guide fins (6) and vertical wear resistant guide fins (8).
5. The boiler water cooled wall of a boiler smoke exhaust channel according to claim 4, characterized in that the transverse wear-resistant guide fins (6) form an angle of 90 ° with the protective screen frame (4).
6. The boiler water-cooled wall of a boiler smoke evacuation channel according to claim 4, characterized in that the vertical wear-resistant guide fins (8) comprise a middle fin and side fins, the middle fin forms an angle of 90 ° with the protective screen frame (4), and the side fins comprise a left side fin and a right side fin.
7. The boiler water-cooled wall of the boiler smoke evacuation channel of claim 6, wherein the left side fin and the right side fin are respectively located at the left side and the right side of the middle fin, and the angles between the right sides of the left side fin and the right side of the right side fin and the protective screen frame are both α.
8. The boiler flue boiler water wall of claim 7, wherein the angle α is 30 ° -45 °.
9. A boiler smoke exhaust channel boiler water wall according to claim 3, characterized in that said water wall tube (1) is fixedly connected with wear prevention tiles (9) at the upper end of the transverse fixing plate.
10. A boiler smoke exhaust channel boiler water wall according to claim 3, characterized in that between said connection plate (3) and boiler wall (2) there is provided a refractory insulating material (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240041.9U CN211204018U (en) | 2019-12-14 | 2019-12-14 | Boiler water-cooled wall of boiler smoke exhaust channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240041.9U CN211204018U (en) | 2019-12-14 | 2019-12-14 | Boiler water-cooled wall of boiler smoke exhaust channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211204018U true CN211204018U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922240041.9U Expired - Fee Related CN211204018U (en) | 2019-12-14 | 2019-12-14 | Boiler water-cooled wall of boiler smoke exhaust channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211204018U (en) |
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2019
- 2019-12-14 CN CN201922240041.9U patent/CN211204018U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200807 Termination date: 20211214 |