CN219692643U - Suspension type heat isolation device - Google Patents
Suspension type heat isolation device Download PDFInfo
- Publication number
- CN219692643U CN219692643U CN202321238515.6U CN202321238515U CN219692643U CN 219692643 U CN219692643 U CN 219692643U CN 202321238515 U CN202321238515 U CN 202321238515U CN 219692643 U CN219692643 U CN 219692643U
- Authority
- CN
- China
- Prior art keywords
- isolation device
- supporting plate
- wall
- annular structure
- utility
- 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
- 238000002955 isolation Methods 0.000 title claims abstract description 23
- 239000000725 suspension Substances 0.000 title abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims abstract description 25
- 238000004321 preservation Methods 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 23
- 229910052755 nonmetal Inorganic materials 0.000 abstract description 10
- 239000011148 porous material Substances 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010977 unit operation Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The utility model discloses a suspension type heat isolation device. The utility model comprises a structural supporting plate, a cover plate and an insulating layer, wherein the insulating layer is arranged between the structural supporting plate and the cover plate, and an open pore structure is arranged on the structural supporting plate and is used for fixing the structural supporting plate on a furnace wallboard. When the unit operates, the temperature of the wall penetrating pipe is higher, the heat-insulating layer can limit heat transfer between the wall penetrating pipe and the furnace wallboard, so that heat loss is reduced, the service life of the furnace wallboard is prolonged, and meanwhile, the potential safety hazard of unit operation is reduced; when the wall pipe is heated or the unit is started and stopped to generate displacement, the structural supporting plate and the cover plate can clamp the heat insulation layer to move along with the movement of the wall pipe, so that the thermal isolation device is not influenced by the movement of the wall pipe; the utility model can also prevent the high-temperature and high-pressure flue gas from reaching the nonmetal expansion joint through the gap between the wall pipe and the furnace wallboard, and prolongs the service life of the nonmetal expansion joint.
Description
Technical Field
The utility model relates to the technical field of boiler equipment, in particular to a suspension type heat isolation device.
Background
In combined cycle systems of gas turbine power plants, excessive temperatures of the furnace wall panels are a common and frequent phenomenon, particularly in the areas where the through-wall tubes are located, and the temperature of the furnace wall panels is significantly higher than at other locations. The reason for this is that there is a gap between the furnace wallboard and the wall penetrating pipe, and heat of the wall penetrating pipe is transferred to the furnace wallboard through the gap, so that the temperature of the furnace wallboard is increased. Because the wall pipe can move up and down along with the start and stop of the unit, the wall pipe cannot be treated by the traditional heat insulation mode.
Disclosure of Invention
The utility model provides a suspended type heat isolation device for solving the technical problem that a through-wall pipe can move and cannot be thermally isolated from a furnace wallboard in the prior art.
The technical scheme adopted by the utility model is as follows:
the utility model provides a suspension type heat isolation device, it includes with the fixed structure layer board of stove wallboard and locate on the stove wallboard towards the apron of structure layer board one side be equipped with between the structure layer board with be used for restricting heat transfer's between stove wallboard and the through-wall pipe heat preservation.
Further, the heat preservation layer is formed by the clearance between the structure layer board and the apron, hold the heat preservation cotton in the heat preservation layer.
Further, the structure supporting plate comprises a first cylindrical structure for accommodating the wall penetrating pipe to penetrate through, and a first annular structure arranged on the periphery of the first cylindrical structure.
Further, the structural supporting plate further comprises a plurality of open pore structures which are uniformly distributed at the outer edge of the first annular structure and are used for being matched with bolts to limit the movement of the structural supporting plate and the extending direction of the wall penetrating pipe.
Further, the open-cell structure has a passageway extending toward a center of the annular structure, and a length of the passageway is less than a width of the annular structure, the annular structure being movable along the passageway.
Further, a fixing spacer is further laid between the nut of the bolt and the first annular structure.
Further, the first cylindrical structure and the first annular structure are fixed in a welding mode.
Further, the cover plate comprises a second cylindrical structure and a second annular structure arranged on the periphery side of the second cylindrical structure, and the opening of the second cylindrical structure is larger than that of the first cylindrical structure.
Further, the second cylindrical structure and the second annular structure are fixed by welding.
Compared with the prior art, the utility model has at least the following beneficial effects:
firstly, the heat insulation layer is arranged between the wall penetrating pipe and the furnace wallboard, and the heat insulation cotton is arranged in the heat insulation layer, so that the problem of overhigh heat transfer between the wall penetrating pipe and the furnace wallboard is solved, the heat loss is reduced, the service life of the furnace wallboard is prolonged, and meanwhile, the potential safety hazard of unit operation is reduced; secondly, the utility model arranges an opening structure on the structure supporting plate, which is used for fixing the structure supporting plate on the furnace wallboard, and simultaneously allowing the wall penetrating pipe to move up and down along with the start and stop of the machine set without influencing the heat isolation effect; the utility model can also prevent the high-temperature and high-pressure flue gas from reaching the nonmetal expansion joint through the gap between the wall pipe and the furnace wallboard, and prolongs the service life of the nonmetal expansion joint.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an overall assembly of the present utility model;
FIG. 2 is a schematic perspective view of a structural pallet according to an embodiment of the present utility model;
FIG. 3 is a top view of a first tubular structure according to an embodiment of the present utility model;
FIG. 4 is a top view of a first ring structure according to an embodiment of the present utility model;
FIG. 5 is a schematic perspective view of a cover plate according to the present utility model;
FIG. 6 is a top view of a second tubular structure according to the present utility model;
FIG. 7 is a top view of a second ring structure according to the present utility model;
FIG. 8 is a schematic view of a gasket according to the present utility model;
1. a wall pipe; 2. furnace wallboard; 21. a bolt; 3. a structural pallet; 31. a first cylindrical structure; 32. a first annular structure; 33. an open cell structure; 4. a cover plate; 41. a second cylindrical structure; 42. a second ring structure; 5. a heat preservation layer; 6. a gasket; 7. a screw cap; 8. and an inner heat-preservation guard board.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. 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.
Thus, reference throughout this specification to one feature will be used in order to describe one embodiment of the utility model, not to imply that each embodiment of the utility model must be in the proper motion. Furthermore, it should be noted that the present specification describes a number of features. Although certain features may be combined together to illustrate a possible system design, such features may be used in other combinations not explicitly described. Thus, unless otherwise indicated, the illustrated combinations are not intended to be limiting.
The principles and structures of the present utility model are described in detail below with reference to the drawings and the examples.
At present, in the combined cycle system of the gas turbine power plant, the excessive temperature of the furnace wallboard is a common and frequent phenomenon, particularly in the area where the through wall pipe is located, and the temperature of the furnace wallboard is obviously higher than other positions. The reason for this is that there is a gap between the furnace wallboard and the wall penetrating pipe, and heat of the wall penetrating pipe is transferred to the furnace wallboard through the gap, so that the temperature of the furnace wallboard is increased. Because the wall pipe can move up and down along with the start and stop of the unit, the wall pipe cannot be treated by the traditional heat insulation mode.
Therefore, in order to solve the technical problem that the temperature of the furnace wallboard in the area where the through-wall pipe is located is too high in the prior art, the utility model provides a suspension type heat isolation device, which comprises:
the structure supporting plate is provided with a first cylindrical structure and a first annular structure arranged on the periphery of the first cylindrical structure, the first annular structure is provided with an open pore structure, and the open pore structure is used for installing and fixing the structure supporting plate on a furnace wallboard;
the cover plate is provided with a second cylindrical structure and a second annular structure arranged on the periphery of the second cylindrical structure, and is matched with the structural supporting plate to clamp the heat insulation layer;
the heat preservation layer is arranged between the structural supporting plate and the cover plate and internally accommodates heat preservation cotton
The working principle is as follows: the first cylindrical structure of the structural supporting plate accommodates the wall penetrating pipe to penetrate through, and the open pore structure arranged on the first annular structure of the structural supporting plate is matched with bolts on the furnace wallboard to fix the structural supporting plate on the furnace wallboard; the second cylindrical structure of the cover plate is used for accommodating the wall penetrating pipe and the cylindrical structure of the structural supporting plate to penetrate through, and the cover plate is matched with the structural supporting plate to form an insulating layer; the heat preservation layer contains heat preservation cotton. When the unit operates, the temperature of the wall penetrating pipe is higher, and heat insulating cotton in the heat insulating layer can thermally isolate the temperature of the wall penetrating pipe, so that the heat transferred to the furnace wallboard by the wall penetrating pipe is reduced; and the structural supporting plate and the cover plate can move along with the movement of the pipe diameter. In summary, the suspended heat isolation device provided by the utility model solves the problem that the temperature of the furnace wallboard is too high in the area where the through-wall pipe is located by arranging the heat insulation layer, and solves the problem that the heat isolation effect is poor due to the fact that the through-wall pipe moves by arranging the structural supporting plate and the cover plate to clamp the heat insulation layer.
Referring to fig. 1, a schematic cross-sectional view of the whole assembly of the present utility model is shown. The utility model provides a suspension type thermal isolation device which comprises a structural supporting plate 3, a cover plate 4, an insulating layer 5 and a gasket 6.
Further, referring to fig. 1 and fig. 2, fig. 2 is a schematic perspective view of a structural pallet according to an embodiment of the present utility model. The structure supporting plate 3 comprises a first cylindrical structure 31 and a first annular structure 32, the first cylindrical structure 31 is used for accommodating the wall penetrating pipe 1 to penetrate through, and the first annular structure 32 is arranged on the periphery side of the first cylindrical structure 31. The first annular structure 32 is provided with a plurality of open pore structures 33 which are uniformly distributed at the outer edge of the first annular structure 32, and the open pore structures 33 are used for being matched with bolts 21 on the furnace wallboard 2 to limit the structure supporting plate 3 and the wall penetrating pipe 1 to move towards the extending direction; while the open-cell structure 33 has a passage extending towards the centre of the first annular structure 32, the opening of the open-cell structure 33 towards the centre can each be a channel, which is shaped as a rounded rectangle, the length of which is smaller than the width of the first annular structure 32, along which channel the first annular structure 32 is movable. Wherein, the first tubular structure 31 and the first annular structure 32 are fixed by welding. In addition, if only the nuts 7 are used, the structural pallet 3 cannot be firmly fixed to the furnace wallboard 2, and there may be a risk of falling off. A fixing washer 6 is also laid between the nut 7 on the bolt 21 and the first annular structure 32 for better fixing the structural pallet 3 to the furnace wall board 2.
Specifically, the diameter of the first cylindrical structure 31 is set according to the diameter of the wall pipe 1, and the diameter of the first cylindrical structure 31 is slightly larger than the diameter of the wall pipe 1; the diameter of the first annular structure 32 is determined according to the diameter of the wall pipe 1, the size of a gap between the wall pipe 1 and the furnace wallboard 2, the displacement distance of the wall pipe 1 and the like; the length of the passage of the open structure 33 of the first annular structure 32 extending towards the centre of the first annular structure 32 is determined by the distance the wall pipe 1 is displaced.
Referring to fig. 3 and 4, fig. 3 is a top view of a first cylindrical structure of a structural pallet according to an embodiment of the present utility model, and fig. 4 is a top view of a first annular structure of a structural pallet according to an embodiment of the present utility model. In the embodiment of the present utility model, the number of the open-pore structures 33 on the first annular structure 32 is 4, and the open-pore structures are uniformly distributed at the outer edge of the first annular structure 32. In order to conform to the shape of the bolt 21, the shape of the end of the passage extending toward the center of the first annular structure 32 near the center of the open hole structure 33 is arranged in a semicircle. In other embodiments of the present utility model, the shape of the open-cell structure 33 toward the end of the passage extending toward the center of the first annular structure 32 near the center may be rectangular, triangular, or the like.
Please refer to fig. 8, which is a schematic diagram illustrating a structure of a gasket according to the present utility model. The spacer 6 is rectangular in shape and has a circular opening in its center sized to fit the bolt 21 for receiving the bolt 21 therethrough. When the bolt 21 and the nut 7 are fastened, a gap exists therebetween, and the bolt 21 and the nut 7 may be loosened after a long period of use. The spacer is used to increase the bearing area and better secure the structural pallet 3 to the furnace wallboard 2.
Further, referring to fig. 1 and fig. 5, fig. 5 is a schematic perspective view of a cover plate in the present utility model. The cover plate 4 includes a second cylindrical structure 41 and a second annular structure 42, the opening of the second cylindrical structure 41 being larger than the opening of the first cylindrical structure 31, the second annular structure 42 being disposed on the peripheral side of the second cylindrical structure 41. And the second cylindrical structure 41 and the second annular structure 42 are fixed by welding.
Specifically, referring to fig. 6 and 7, fig. 6 is a top view of the second cylindrical structure in the present utility model, and fig. 7 is a top view of the second annular structure in the present utility model. The second cylindrical structure 41 is used for accommodating the first cylindrical structure 31 of the accommodating structure supporting plate 3 while the wall pipe 1 passes through, and a certain space needs to be formed between the second cylindrical structure 41 and the first cylindrical structure 31. The diameter of the second tubular structure 41 is larger than that of the first tubular structure 31, and the diameter of the second tubular structure 41 is determined according to the data such as the diameter of the through-wall pipe 1, the diameter of the first tubular structure 31, and the like; the diameter of the second annular structure 42 is determined according to the diameter of the wall pipe 1, the gap between the wall pipe 1 and the furnace wall plate 2, the displacement distance of the wall pipe 1, and the like.
Referring to fig. 1, in the embodiment of the present utility model, an inner insulation protection plate 8 is disposed on a wall pipe 1, and the inner insulation protection plate 8, a furnace wall plate 2 and the wall pipe 1 are clamped to form an inner insulation layer, and insulation cotton is disposed in the inner insulation layer. The side of the inner heat preservation guard plate 8, which is opposite to the furnace wallboard 2, belongs to the boiler, and the medium is high-temperature high-pressure flue gas with the temperature of about 580 ℃, and because the inner heat preservation guard plate 8 is not in sealing connection with the through-wall pipe 1, the high-temperature high-pressure flue gas can reach the nonmetal expansion joint arranged on the side of the furnace wallboard 2, which is opposite to the inner heat preservation guard plate 8, through the gap between the through-wall pipe 1 and the furnace wallboard 2, so that the service life of the nonmetal expansion joint is shortened. In addition, the medium inside the wall pipe 1 is high-temperature high-pressure flue gas with the temperature of about 580 ℃, a gap exists between the furnace wallboard 2 and the wall pipe 1, and heat of the wall pipe 1 can be transferred to the furnace wallboard 2 through the gap, so that the temperature of the furnace wallboard 2 is increased.
In the present utility model, a heat insulating layer 5 is provided between the structural pallet 3 and the cover plate 4, which serves to limit heat transfer between the through-wall tubes 1 and the furnace wall plates 2. The heat insulation layer 5 contains heat insulation cotton, the heat insulation cotton is clamped between the structural support plate 3 and the cover plate 4, when the unit operates, the temperature of the wall penetrating pipe 1 is higher, the heat insulation cotton can limit heat transfer between the wall penetrating pipe 1 and the furnace wallboard 2, the heat loss is reduced, the service life of the furnace wallboard is prolonged, and meanwhile, the potential safety hazard of unit operation is reduced; when the wall pipe 1 is heated or the unit is started and stopped to generate displacement, the structural supporting plate 3 and the cover plate 4 can clamp the heat insulation cotton to move along with the movement of the wall pipe 1, so that the heat insulation device is not influenced by the movement of the wall pipe 1; the utility model is arranged between the wall pipe 1 and the furnace wallboard 2, can prevent high-temperature and high-pressure flue gas from reaching the nonmetal expansion joint through the gap between the wall pipe 1 and the furnace wallboard 2, and prolongs the service life of the nonmetal expansion joint.
According to the suspension type heat isolation device, the heat insulation layer is arranged between the wall penetrating pipe and the furnace wallboard, and the heat insulation cotton is arranged in the heat insulation layer, so that the problem of overhigh heat transfer between the wall penetrating pipe and the furnace wallboard is solved; secondly, the utility model arranges an opening structure on the structure supporting plate, which is used for fixing the structure supporting plate on the furnace wallboard and allowing the wall penetrating pipe to move without affecting the heat isolation effect; the utility model can also prevent high-temperature and high-pressure flue gas from reaching the nonmetal expansion joint through the gap between the wall pipe and the furnace wallboard, and prolongs the service life of the nonmetal expansion joint.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (9)
1. The suspended heat isolation device is characterized by comprising a structure supporting plate fixed with a furnace wallboard and a cover plate arranged on the furnace wallboard and facing one side of the structure supporting plate, wherein a heat preservation layer for limiting heat transfer between the furnace wallboard and a wall penetrating pipe is arranged between the structure supporting plate and the cover plate.
2. The suspended thermal isolation device of claim 1, wherein the insulating layer is formed by a gap between the structural pallet and the cover plate, and insulating cotton is contained within the insulating layer.
3. The floating thermal isolation device of claim 1, wherein the structural pallet comprises a first cylindrical structure for receiving the wall pipe therethrough, and a first annular structure provided on a peripheral side of the first cylindrical structure.
4. A suspended heat isolation device as claimed in claim 3, wherein the structural pallet further comprises a plurality of open cell structures evenly distributed at the outer edge of the first annular structure for cooperating with bolts to limit movement of the structural pallet in the direction of extension of the wall penetrating pipe.
5. The floating thermal isolation device of claim 4, wherein the open cell structure has a passageway extending toward a center of the annular structure, and a length of the passageway is less than a width of the annular structure along which the annular structure is movable.
6. The floating thermal isolation device of claim 4, wherein a retaining washer is further disposed between the nut of the bolt and the first annular structure.
7. A floating thermal isolation device as claimed in claim 3, wherein the first tubular structure and the first annular structure are secured by welding.
8. A suspended heat isolation device as claimed in claim 3, wherein the cover plate comprises a second cylindrical structure and a second annular structure provided on a peripheral side of the second cylindrical structure, and an opening of the second cylindrical structure is larger than an opening of the first cylindrical structure.
9. The floating thermal isolation device of claim 8, wherein the second tubular structure and the second annular structure are secured by welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238515.6U CN219692643U (en) | 2023-05-22 | 2023-05-22 | Suspension type heat isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238515.6U CN219692643U (en) | 2023-05-22 | 2023-05-22 | Suspension type heat isolation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219692643U true CN219692643U (en) | 2023-09-15 |
Family
ID=87937388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321238515.6U Active CN219692643U (en) | 2023-05-22 | 2023-05-22 | Suspension type heat isolation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219692643U (en) |
-
2023
- 2023-05-22 CN CN202321238515.6U patent/CN219692643U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0639910B2 (en) | Exhaust silencer for gas turbine | |
| CN219692643U (en) | Suspension type heat isolation device | |
| US11448395B1 (en) | High-temperature reheater anti-friction device | |
| KR100914755B1 (en) | Duct assembly for flue | |
| JPS6161037B2 (en) | ||
| KR101910795B1 (en) | An sir supplying and exhaust pipe connecting structure of boiler | |
| CN210372382U (en) | Geographical type insulating tube | |
| CN211501979U (en) | BY gland loose sleeve limiting compensation expansion joint | |
| CN215890167U (en) | Engine exhaust pipe with heat shield and engine | |
| CN220354843U (en) | Central heating overhead heat preservation pipe | |
| CN106052467A (en) | Waste heat power generation method through industrial smoke | |
| CN215950748U (en) | High-temperature furnace smoke metal compensator not easy to damage | |
| CN205938353U (en) | Steam pipe spring support that insulates against heat | |
| CN104696968A (en) | Sealing device for kiln tail of rotary kiln in waste incineration system | |
| CN218626040U (en) | Insulating tube with aluminum foil structure | |
| CN216478903U (en) | Boiler supporting beam processing apparatus that leaks out | |
| CN210637610U (en) | Novel energy-saving prefabricated overhead steam heat-insulation pipe | |
| CN220957335U (en) | Novel zero leakage nonmetal compensator | |
| CN221195171U (en) | Composite heat insulation structure of high-temperature flue gas pipe | |
| CN219159817U (en) | Displacement absorbing structure of exhaust pipe | |
| CN213901429U (en) | Heat-insulation fireproof pipeline assembly for cold-heat exchanger | |
| CN211950979U (en) | Heating box fan room structure | |
| CN216778214U (en) | High-temperature-resistant dust removal device | |
| CN214947100U (en) | Fast assembly's warm pipeline that leads to | |
| CN219063759U (en) | Horizontal hot water boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |