CN217235550U - Integral type boiler lining structure - Google Patents
Integral type boiler lining structure Download PDFInfo
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- CN217235550U CN217235550U CN202221186902.5U CN202221186902U CN217235550U CN 217235550 U CN217235550 U CN 217235550U CN 202221186902 U CN202221186902 U CN 202221186902U CN 217235550 U CN217235550 U CN 217235550U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Abstract
The utility model discloses an integrated boiler lining structure, which relates to the technical field of water-cooled walls and solves the technical problem that the boiler lining can not meet the heating requirement of the water-cooled wall under the high-temperature state of a hearth, and comprises the water-cooled wall formed by alternately connecting water-cooled tubes and fins, an internal heat conducting mechanism arranged at the inner side of the water-cooled wall and an external heat insulation and preservation mechanism arranged at the outer side of the water-cooled wall; the utility model has the advantages that the outer side heat insulation and preservation structure and the inner heat conduction mechanism are respectively arranged on the two sides of the water-cooled wall, so that the outer side heat loss can be reduced, the heat exchange efficiency of the water-cooled wall can be improved, the heating surface area of the integrated boiler can be reduced, and the investment cost can be reduced; meanwhile, the integrated boiler water-cooled wall and related equipment are convenient to install and maintain, long in service life and short in replacement period, and long-period operation of the integrated boiler water-cooled wall and the related equipment is effectively guaranteed.
Description
Technical Field
The utility model belongs to the technical field of the water-cooling wall, more specifically relates to an integral type boiler lining structure.
Background
The water-cooled wall is the main heated part of the boiler, and consists of a plurality of rows of steel pipes which are distributed around a boiler hearth and a flue; the inside of the furnace is a flowing working medium (water or water and steam) with certain temperature and pressure, and the outside of the furnace is contacted with high-temperature corrosive environment atmosphere in the furnace; mainly absorbs the radiation heat generated by high-temperature combustion in the hearth, and the working medium rises in the hearth and is heated and evaporated.
When the water-cooled wall is initially designed, the purpose is not to be heated, but to cool the hearth so that the hearth is not damaged by high temperature; later, due to its good heat exchange function, it gradually replaced the steam drum as the main heated part of the boiler; an evaporation heating surface which is laid on the inner wall of the boiler furnace and consists of a plurality of parallel pipes; the water-cooled wall is used for absorbing the radiation heat of high-temperature flame or smoke in the hearth, generating steam or hot water in the tube, reducing the temperature of the furnace wall and protecting the furnace wall.
In a large-capacity boiler, the flame temperature in the boiler is very high, and the intensity of heat radiation is very high; 40-50% or more of heat in the boiler is absorbed by the water-cooled wall; except a few small-volume boilers, modern water tube boilers all use water-cooled walls as the most main evaporation heating surfaces in the boilers; fly ash and the like generated by combustion in the furnace are softened and melted at a high temperature exceeding the low melting point of the fly ash and the like, and are adhered to a water wall to form an adhesion layer or a coking layer, so that the heat transfer mechanism of the water wall is deteriorated, the heat efficiency of the water wall is reduced, the corrosion is increased, and vicious circle is realized.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that boiler lining can't satisfy the water-cooling wall demand of being heated under the boiler furnace high temperature state, the utility model provides an integral type boiler lining structure.
The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:
an integrated boiler liner structure having a water cooled wall formed by a plurality of water cooled tubes and a plurality of fins alternately connected; an internal heat conducting mechanism is arranged on one side, namely the inner side wall surface, of the water-cooled wall close to the hearth; and an external heat insulation mechanism is arranged on the outer side wall surface of the water-cooled wall.
The internal heat conducting mechanism is provided with a heat conducting module sleeved on the inner side wall surface of the water-cooled wall.
And a sealing layer is arranged between the heat conduction module and the inner side wall surface of the water-cooled wall.
The heat conduction modules are arranged longitudinally and transversely along the water-cooled wall, and each heat conduction module at least corresponds to two water-cooled tubes; each heat conduction module is fixedly connected with the corresponding fin through a second heat-resistant steel anchoring piece so as to fixedly connect the heat conduction module with the water-cooled wall.
Fiber mats are laid between the upper heat conduction module and the lower heat conduction module and between the left heat conduction module and the right heat conduction module, and expansion gaps are formed.
The heat conduction module is provided with a groove matched with the inner side wall surface of the water-cooled wall; and a slot hole used for matching the second heat-resistant steel anchoring piece is arranged between the grooves of the heat conduction module.
The second heat-resistant steel anchoring piece comprises an anchoring circular ring and a stud type anchoring nail, and the anchoring circular ring is in threaded connection with the stud type anchoring nail.
The external heat insulation mechanism is provided with a heat insulation coating which is uniformly coated on the outer side wall surface of the water-cooled wall and a ceramic fiber layer which is sleeved on the outer side wall surface of the water-cooled wall.
The ceramic fiber layers are arranged longitudinally and transversely along the water-cooled wall, and each ceramic fiber layer is fixedly connected with the corresponding fin through a first heat-resistant steel anchoring piece so as to fixedly connect the ceramic fiber layers with the water-cooled wall.
The first heat-resistant steel anchoring piece comprises an anchoring circular piece and an L-shaped anchoring nail, the folded end of the L-shaped anchoring nail is welded on a fin of the water-cooled wall, and the anchoring circular piece is sleeved at the end part of the long nail.
The ceramic fiber layer is formed by laying a concave-convex thick plate body with a comb-shaped section.
The utility model provides an integral type boiler lining structure adopts above-mentioned technical scheme, and the beneficial effect who has is as follows:
1. the utility model has the advantages that the outer side heat insulation and preservation structure and the inner heat conduction mechanism are respectively arranged on the two sides of the water-cooled wall, so that the outer side heat loss can be reduced, the heat exchange efficiency of the water-cooled wall can be improved, the heating surface area of the integrated boiler can be reduced, and the investment cost can be reduced; meanwhile, the integrated boiler water-cooled wall and related equipment are convenient to install and maintain, long in service life and short in replacement period, and long-period operation of the integrated boiler water-cooled wall and the related equipment is effectively guaranteed.
2. The utility model discloses well outside insulation construction makes lining structure thermal conductivity coefficient low, can realize quick spraying or installation.
3. The utility model provides an inside heat conduction mechanism makes lining structure thermal resistance little, and heat flux density is high, high temperature resistant corrosion, reduction coking, high temperature resistant steam erosion, and it is convenient to change.
Drawings
Fig. 1 is a schematic top view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of a heat conducting module according to the present invention;
FIG. 3 is a schematic view of the structure of the ceramic fiber layer of the present invention;
fig. 4 is a schematic structural view of a first heat resistant steel anchor of the present invention;
fig. 5 is a schematic structural view of a second heat resistant steel anchor of the present invention;
fig. 6 is a schematic structural view of the anchoring disk/ring of the present invention;
FIG. 7 is an installation diagram of the internal heat conduction mechanism of the reclaimed water cooled wall of the present invention;
FIG. 8 is an installation diagram of the external heat insulation mechanism of the reclaimed water wall of the present invention;
reference numerals: the heat-insulation anchor comprises, by weight, 1-a water-cooled tube, 2-fins, 3-a heat-insulation coating, 4-a ceramic fiber layer, 5-a sealing layer, 6-a heat-conduction module, 60-a slotted hole, 7-a fiber mat, 8-a first heat-resistant steel anchoring piece, 81-an anchoring wafer, 82- 'L' -shaped anchoring nail, 9-a second heat-resistant steel anchoring piece, 91-an anchoring circular ring and 92-a stud-type anchoring nail.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the present invention provides an integrated boiler lining structure, comprising a water-cooled wall formed by interconnecting water-cooled tubes 1 and fins 2, an internal heat conducting mechanism disposed inside the water-cooled wall, and an external heat insulating mechanism disposed outside the water-cooled wall.
As shown in fig. 1, the water wall is formed by alternately connecting water cooling tubes 1 and fins 2, all the fins 2 are arranged in the same plane, and the central axes of all the water cooling tubes 1 are also located in the plane.
As shown in fig. 1, the internal heat conducting mechanism includes a second heat-resistant steel anchoring member 9, a sealing layer 5, a heat conducting module 6 and a fiber mat 7, the heat conducting module 6 is fixedly connected to the water wall through the second heat-resistant steel anchoring member 9, the sealing layer 5 is filled in a gap between the heat conducting module 6 and the water wall, and the fiber mat 7 is laid between components of the heat conducting module 6 to form an expansion gap.
As shown in fig. 2, the heat conducting mechanism is formed by laying heat conducting modules 6, and the heat conducting modules 6 are made of refractory bricks; a slot 60 is formed between the grooves of the heat conducting module 6, and the slot 60 is used for accommodating the second heat-resistant steel anchoring member 9, so that the heat conducting module 6 is hung on the second heat-resistant steel anchoring member 9.
As shown in fig. 1, the external heat insulation mechanism comprises a first heat-resistant steel anchoring member 8, a heat insulation coating 3 and a ceramic fiber layer 4, wherein the heat insulation coating 3 is uniformly coated on the outer surface of the water-cooled wall, and the ceramic fiber layer 4 is fixedly connected with the water-cooled wall through the first heat-resistant steel anchoring member 8.
As shown in fig. 3, the ceramic fiber layer 4 is formed by laying a thick plate body with a comb-shaped section, the concave part of the ceramic fiber layer is used for accommodating the water cooling tube, and the convex part of the ceramic fiber layer fills the gap of the fin.
When the utility model is installed and used, as shown in fig. 6 and 7, the second heat-resistant steel anchoring parts 9 are distributed and welded on the fins at the inner side of the water-cooled wall, and the first heat-resistant steel anchoring parts 8 are distributed and welded on the fins at the outer side of the water-cooled wall, so that the inner side and the outer side of the water-cooled wall are provided with the heat-resistant steel anchoring parts which are distributed neatly; then, laying a heat conduction module 6 on the inner side of the water wall, forming expansion gaps between comb-shaped components of the heat conduction module 6 by using fiber mats 7, and filling a sealing layer 5 in a gap between the heat conduction layer 6 and the water wall so as to form an internal heat conduction mechanism of the water wall; and then, coating the outer side of the water wall with a heat insulation coating 3, drying the coating, and paving a ceramic fiber layer 4 on the outer side of the water wall to form an external heat insulation mechanism of the water wall.
As shown in fig. 1, 4 and 6, the first heat-resistant steel anchoring part 8 includes an anchoring disc 81 and an "L" -shaped anchoring nail 82, a folded end of the "L" -shaped anchoring nail 82 is welded on the fin 2 of the water wall, and a spike end thereof protrudes outward perpendicular to the fin 2 of the water wall and penetrates through the ceramic fiber layer 4, so that the anchoring disc 81 is sleeved on the spike end, thereby fixedly connecting the ceramic fiber layer 4 with the heat-resistant steel anchoring part 8.
When the utility model is used, the first heat-resistant steel anchoring part 8 is used for setting the external heat-insulating mechanism, as shown in fig. 8, the setting mode of the external heat-insulating mechanism is that the L-shaped anchoring nails 82 are firstly arranged and welded outside the water-cooled wall, and the arrangement mode of the L-shaped anchoring nails 82 is related to the size of the concave-convex thick plate body of the ceramic fiber layer 4; then, coating the heat insulation coating 3 on the outer side of the water wall, drying the coating, and laying the concave-convex thick plate body of the ceramic fiber layer 4 on the outer side of the water wall; the method specifically comprises the steps that the folded end of an L-shaped anchoring nail 82 is welded on a fin 2 of the water-cooled wall, the long nail end of the L-shaped anchoring nail is perpendicular to the fin 2 of the water-cooled wall and protrudes outwards and penetrates through a concave-convex thick plate body corresponding to a ceramic fiber layer 4, and then an anchoring wafer 81 is sleeved at the end part of the long nail end, so that the ceramic fiber layer 4 is fixedly connected with a heat-resistant steel anchoring part 8, and an external heat insulation mechanism of the water-cooled wall is formed.
As shown in fig. 1, 5 and 6, the second heat-resistant steel anchoring member 9 includes an anchoring ring 91 and a stud-type anchoring nail 92, one end of the stud-type anchoring nail is vertically welded to the fin of the water wall, and the anchoring ring 91 is connected to the stud-type anchoring nail 92 through a screw thread.
When the utility model is used, the second heat-resistant steel anchoring part 9 is used for setting the internal heat-conducting mechanism, as shown in fig. 7, the setting mode of the internal heat-conducting mechanism is that stud type anchoring nails 92 are firstly arranged and welded on the inner side of the water-cooled wall, and the arrangement mode of the stud type anchoring nails 92 is related to the size of the comb-shaped component of the heat-conducting module 6; welding stud type anchoring nails 92 on fins 2 of the water wall, wherein stud parts of the stud parts are perpendicular to the fins 2 of the water wall and protrude outwards, and anchoring circular rings 91 are in threaded connection with the end parts of the stud type anchoring nails 92, and then respectively hanging comb-shaped components of the heat conduction modules 6 on corresponding second heat-resistant steel anchoring parts 9; when the heat conduction module 6 is laid, the fiber mat 7 is laid between the heat conduction module 6 components to form an expansion gap; and then filling the sealing layer 5 in a gap between the heat conduction module 6 and the water wall, thereby forming an internal heat conduction mechanism of the water wall.
Claims (10)
1. An integrated boiler liner structure having a water cooled wall formed by a plurality of water cooled tubes and a plurality of fins alternately connected; the method is characterized in that: an internal heat conducting mechanism is arranged on one side, namely an inner side wall surface, of the water-cooled wall, which is close to the hearth; and an external heat insulation mechanism is arranged on the outer side wall surface of the water-cooled wall.
2. An integrated boiler liner structure in accordance with claim 1, wherein: the internal heat conducting mechanism is provided with a heat conducting module sleeved on the inner side wall surface of the water-cooled wall; the heat conduction modules are arranged longitudinally and transversely along the water-cooled wall, and each heat conduction module at least corresponds to two water-cooled tubes; each heat conduction module is fixedly connected with the corresponding fin through a second heat-resistant steel anchoring piece so as to fixedly connect the heat conduction module with the water-cooled wall.
3. An integrated boiler liner structure in accordance with claim 2, wherein: and a sealing layer is arranged between the heat conduction module and the inner side wall surface of the water cooling wall.
4. An integrated boiler liner structure in accordance with claim 2, wherein: fiber mats are laid between the upper heat conduction module and the lower heat conduction module and between the left heat conduction module and the right heat conduction module, and expansion gaps are formed.
5. An integrated boiler liner structure in accordance with claim 2, wherein: the heat conduction module is provided with a groove matched with the inner side wall surface of the water-cooled wall; and a slot hole used for matching the second heat-resistant steel anchoring piece is arranged between the grooves of the heat conduction module.
6. An integrated boiler liner structure in accordance with claim 2, wherein: the second heat-resistant steel anchoring piece comprises an anchoring circular ring and a stud type anchoring nail, and the anchoring circular ring is in threaded connection with the stud type anchoring nail.
7. An integrated boiler liner structure in accordance with claim 1, wherein: the external heat insulation mechanism is provided with a heat insulation coating which is uniformly coated on the outer side wall surface of the water-cooled wall and a ceramic fiber layer which is sleeved on the outer side wall surface of the water-cooled wall.
8. An integrated boiler liner structure in accordance with claim 7, wherein: the ceramic fiber layers are arranged longitudinally and transversely along the water-cooled wall, and each ceramic fiber layer is fixedly connected with the corresponding fin through a first heat-resistant steel anchoring piece so as to fixedly connect the ceramic fiber layers with the water-cooled wall.
9. An integrated boiler liner structure in accordance with claim 7, wherein: the ceramic fiber layer is formed by laying a concave-convex thick plate body with a comb-shaped section.
10. An integrated boiler liner structure in accordance with claim 8, wherein: the first heat-resistant steel anchoring piece comprises an anchoring circular piece and an L-shaped anchoring nail, the folded end of the L-shaped anchoring nail is welded on a fin of the water-cooled wall, and the anchoring circular piece is sleeved at the end part of the long nail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221186902.5U CN217235550U (en) | 2022-05-18 | 2022-05-18 | Integral type boiler lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221186902.5U CN217235550U (en) | 2022-05-18 | 2022-05-18 | Integral type boiler lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217235550U true CN217235550U (en) | 2022-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221186902.5U Active CN217235550U (en) | 2022-05-18 | 2022-05-18 | Integral type boiler lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217235550U (en) |
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2022
- 2022-05-18 CN CN202221186902.5U patent/CN217235550U/en active Active
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