CN216744300U - Convection heat transfer surface hanging device in membrane type water-cooled wall hearth - Google Patents
Convection heat transfer surface hanging device in membrane type water-cooled wall hearth Download PDFInfo
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- CN216744300U CN216744300U CN202123400986.6U CN202123400986U CN216744300U CN 216744300 U CN216744300 U CN 216744300U CN 202123400986 U CN202123400986 U CN 202123400986U CN 216744300 U CN216744300 U CN 216744300U
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Abstract
The utility model discloses a convection heat transfer surface hanging device in a membrane type water-cooled wall hearth, which relates to the field of industrial boilers and comprises a hearth body, wherein mounting plates are mounted on two sides of the top of the hearth body, and a plurality of hanging pipes extending into the hearth body are mounted in the mounting plates. The utility model carries out radiation convection heat exchange with the flue gas in the hearth, can reduce the design temperature of accessories such as a supporting plate on the hanging pipe and the like while absorbing heat, thereby reducing the material requirement, bearing a convection heating surface and further reducing the use cost, and can still meet the use condition along with the further provision of boiler flue gas parameters; meanwhile, the material grade of the material is the same as that of a membrane water-cooled wall, the thermal expansion coefficient is the same, local stress concentration cannot be caused, the damage of a heating surface is avoided, and the safe operation of the boiler is ensured; and the hanging device has the same heat exchange function as the membrane water-cooled wall, so that the heat exchange area can be increased in a limited heat exchange space, and the boiler efficiency is improved.
Description
Technical Field
The utility model relates to the field of industrial boilers, in particular to a hanging device for a convection heat exchange surface in a membrane type water-cooled wall hearth.
Background
The boiler is energy conversion equipment of a convection heat transfer surface hanging device in a membrane type water-cooled wall hearth, energy input to the boiler is chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy, and the temperature of a flue gas inlet can reach over 1000 ℃ along with the improvement of flue gas parameters of the boiler;
the conventional convection heat exchange surface hanging device in the film type water-cooled wall hearth has the defects that the material is extremely difficult to select along with the further improvement of later-period parameters, and the material cost is increased; meanwhile, the flue gas temperature is increased, and the extremely large load of the convection heating surface is borne, so that the fatigue damage risk is increased after the flue gas is accepted for a long time, and the extremely large potential safety hazard exists; and the material of the membrane type water-cooled wall is lower, the material of the hanger plate is higher, the difference between the thermal expansion coefficients of the membrane type water-cooled wall and the hanger plate is larger, and in the operation process, the risk of expansion limiting points exists between the membrane type water-cooled wall and the hanger plate, so that local stress concentration is caused, and the damage to a heating surface is generated.
SUMMERY OF THE UTILITY MODEL
Based on the above, the utility model aims to provide a hanging device for a convection heat exchange surface in a membrane type water-cooled wall hearth, so as to solve the technical problems that the service life of the existing device is short and the convection heating surface is easily damaged.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a convection current heat transfer face cable suspension device in membrane water-cooling wall furnace, includes the furnace body, the mounting panel is all installed to the top both sides of furnace body, the internally mounted of mounting panel has the many that extend to the furnace body is inside to hang and hangs the pipe, the one end of hanging the pipe is provided with the import collection case, the top of hanging the pipe is provided with the export collection case, hang the both sides of hanging the pipe and all install a plurality of backup pads, the top welding of backup pad has spacing fixture block, the bottom welding of backup pad has the limiting plate, and is a plurality of be provided with convection current heating surface collection case between the backup pad.
By adopting the technical scheme, the working medium can enter the interior of the hanging pipe through the inlet header, and performs radiation convection heat exchange with the flue gas in the hearth body, so that the absorbed heat is changed into a steam-water mixture and is discharged through the outlet header.
Furthermore, a smoke outlet is formed in the upper portion of one side of the hearth body, a smoke inlet is formed in the bottom of the hearth body, and the diameter of the smoke inlet is smaller than that of the smoke outlet.
Through adopting above-mentioned technical scheme, the flue gas can enter into the inside of furnace body through advancing the mouth to discharge through the exhaust port.
Furthermore, the top of the limiting clamping block is arc-shaped, and the length of the limiting plate is smaller than that of the supporting plate.
By adopting the technical scheme, the supporting plate can support and fix the convection heating surface header, so that the stability of the convection heating surface header is improved.
Further, two hang the pipe and divide wrong setting, the mounting panel passes through the bolt and is connected with the dismantlement of furnace body.
Through adopting above-mentioned technical scheme, two hang the pipe setting of staggering, can leave current passageway space, conveniently overhaul, the user passes through bolt quick assembly disassembly mounting panel simultaneously.
Furthermore, the bottom of the outlet header is connected with a hanger, and the diameter of the hanger is smaller than that of the outlet header.
By adopting the technical scheme, the function of draining water can be achieved by the hanging device, and the design of an independent draining water pipe joint and a valve accessory is avoided, so that the energy-saving cost is saved.
In summary, the utility model mainly has the following beneficial effects:
the utility model carries out radiation convection heat exchange with the flue gas in the hearth, can reduce the design temperature of accessories such as an upper supporting plate of the hanging pipe and the like while absorbing heat, thereby reducing the material requirement, bearing a convection heating surface and further reducing the use cost, and can still meet the use condition along with the further provision of boiler flue gas parameters; meanwhile, the material grade of the material is the same as that of a membrane water-cooled wall, the thermal expansion coefficient is the same, local stress concentration cannot be caused, the damage of a heating surface is avoided, and the safe operation of the boiler is ensured; and the hanging device has the same heat exchange function as the membrane water-cooled wall, so that the heat exchange area can be increased in a limited heat exchange space, and the boiler efficiency is improved.
Drawings
FIG. 1 is a schematic front structural view of a hearth body according to the present invention;
FIG. 2 is a front view of the hanging tube of the present invention;
FIG. 3 is a schematic view of a front partial structure of the limiting clamping block of the present invention;
FIG. 4 is a top view of a portion of the outlet header of the present invention.
In the figure: 1. a hearth body; 2. a smoke inlet; 3. an inlet header; 4. a smoke outlet; 5. a convection heating surface header; 6. hanging a pipe; 7. mounting a plate; 8. an outlet header; 9. a limiting clamping block; 10. a support plate; 11. a limiting plate; 12. and (4) hanging.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
The following describes an embodiment of the present invention based on its overall structure.
A convection heat exchange surface hanging device in a membrane type water-cooled wall hearth is disclosed, as shown in figure 1, figure 2, figure 3 and figure 4, and comprises a hearth body 1, wherein mounting plates 7 are respectively mounted on two sides of the top of the hearth body 1, a plurality of hanging pipes 6 extending into the hearth body 1 are mounted inside the mounting plates 7, an inlet header 3 is arranged at one end of each hanging pipe 6, an outlet header 8 is arranged at the top end of each hanging pipe 6, working media can enter the interior of each hanging pipe 6 through the inlet header 3 and perform radiation convection heat exchange with flue gas in the hearth body 1, absorbed heat is changed into a steam-water mixture and is discharged through the outlet header 8, a hanger 12 is connected to the bottom of the outlet header 8, the diameter of the hanger 12 is smaller than that of the outlet header 8, the hanger 12 can play a role in draining water, and avoids the design of independent draining water pipe joints and valve accessories, saves energy cost, an exhaust port 4 is arranged above one side of the hearth body 1, a smoke inlet 2 is arranged at the bottom of the hearth body 1, the diameter of the smoke inlet 2 is smaller than that of the exhaust port 4, smoke can enter the hearth body 1 through the smoke inlet 2, and is discharged through the smoke outlet 4, a plurality of supporting plates 10 are respectively arranged at two sides of the hanging pipe 6, a limiting clamping block 9 is welded at the top of each supporting plate 10, the top of each limiting clamping block 9 is arc-shaped, the length of each limiting plate 11 is smaller than that of each supporting plate 10, the supporting plates 10 can support and fix the convection heating surface header 5, further improving the stability of the convection heating surface header 5, arranging the two hanging pipes 6 in a staggered way, connecting and disconnecting the mounting plate 7 with the hearth body 1 through bolts, the passage passageway space can be reserved, the overhaul is convenient, the limiting plates 11 are welded at the bottoms of the supporting plates 10, and the convection heating surface header 5 is arranged among the supporting plates 10.
The implementation principle of the embodiment is as follows: firstly, a user installs the device, when the device is needed, a working medium can enter the interior of the hanging pipe 6 through the inlet header 3, smoke can enter the interior of the hearth body 1 through the smoke inlet 2, at the moment, the working medium and the smoke perform radiation convection heat exchange in the hearth body 1, absorbed heat is changed into a steam-water mixture and is discharged through the outlet header 8, meanwhile, the hanging 12 is arranged to play a role in draining water, the design of independent draining water pipe joints and valve accessories is avoided, energy is saved, cost is saved, and due to the fact that the 2 hanging pipes 6 are arranged in a staggered mode, a passage passageway space can be reserved, follow-up user can conveniently overhaul, the supporting plate 10 can support and fix the convection heating surface header 5, and the stability of the convection heating surface header 5 is improved.
Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a convection current heat transfer surface cable suspension device in membrane water-cooling wall furnace, includes furnace body (1), its characterized in that: mounting panel (7) are all installed to the top both sides of furnace body (1), the internally mounted of mounting panel (7) has many that extend to furnace body (1) inside to hang and hangs pipe (6), the one end of hanging pipe (6) is provided with import collection case (3), the top of hanging pipe (6) is provided with export collection case (8), hang the both sides of hanging pipe (6) and all install a plurality of backup pads (10), the top welding of backup pad (10) has spacing fixture block (9), the bottom welding of backup pad (10) has limiting plate (11), and is a plurality of be provided with convection current between backup pad (10) and receive hot surface collection case (5).
2. The hanging device for the convection heat exchange surface in the membrane type water-cooled wall hearth according to claim 1, is characterized in that: an exhaust port (4) is formed in the upper portion of one side of the hearth body (1), a smoke inlet (2) is formed in the bottom of the hearth body (1), and the diameter of the smoke inlet (2) is smaller than that of the exhaust port (4).
3. The hanging device for the convection heat exchange surface in the membrane type water-cooled wall hearth according to claim 1, is characterized in that: the top of the limiting clamping block (9) is arc-shaped, and the length of the limiting plate (11) is smaller than that of the supporting plate (10).
4. The hanging device for the convection heat exchange surface in the membrane type water-cooled wall hearth according to claim 1, is characterized in that: two hang pipe (6) and set up by mistake, mounting panel (7) are connected with furnace body (1) dismantlement through the bolt.
5. The hanging device for the convection heat exchange surface in the membrane type water-cooled wall hearth according to claim 1, wherein: the bottom of the outlet header (8) is connected with a hanger (12), and the diameter of the hanger (12) is smaller than that of the outlet header (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123400986.6U CN216744300U (en) | 2021-12-30 | 2021-12-30 | Convection heat transfer surface hanging device in membrane type water-cooled wall hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123400986.6U CN216744300U (en) | 2021-12-30 | 2021-12-30 | Convection heat transfer surface hanging device in membrane type water-cooled wall hearth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216744300U true CN216744300U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123400986.6U Active CN216744300U (en) | 2021-12-30 | 2021-12-30 | Convection heat transfer surface hanging device in membrane type water-cooled wall hearth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216744300U (en) |
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2021
- 2021-12-30 CN CN202123400986.6U patent/CN216744300U/en active Active
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