CN203784907U - Superheater sealing device and gas boiler with same - Google Patents
Superheater sealing device and gas boiler with same Download PDFInfo
- Publication number
- CN203784907U CN203784907U CN201320888045.8U CN201320888045U CN203784907U CN 203784907 U CN203784907 U CN 203784907U CN 201320888045 U CN201320888045 U CN 201320888045U CN 203784907 U CN203784907 U CN 203784907U
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- CN
- China
- Prior art keywords
- superheater
- sealing device
- boiler
- burner hearth
- housings
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Abstract
The utility model relates to a superheater sealing device and a gas boiler with the same, and belongs to the technical field of the gas boiler. The superheater sealing device comprises a superheater and water cooling walls on the two sides of a boiler furnace. A left header and a right header are arranged above the water cooling walls respectively and connected with housings in a sealing and bridging mode. A plurality of superheater headers are installed in the housings and provided with superheater tubes, and the superheater tubes extend into the boiler furnace. Sectional type Great Wall sign shapes are formed on the housings in the length direction. The superheater headers are arranged in a plurality of protruding cavities of the housings. The housings are provided with expansion joints in the width direction. The utility model further discloses the gas boiler adopting the superheater sealing device. The sectional sealing housings absorb the longitudinal swell increment, the expansion joints absorb the transverse swell increment, and therefore gas leakage caused by heat expansion in the operation process of the boiler can be avoided, and the operation safety is guaranteed.
Description
Technical field
The utility model belongs to gas fired-boiler technical field, particularly a kind of superheater sealing device and have the gas fired-boiler of this device.
Background technology
Current gas fired-boiler is all to adopt pressure combustion, and flue needs hermetically sealed, in case high-temperature flue gas leaks.Superheater is generally arranged in high-temperature flue, and at this moment, superheater tube is drawn place at walling of flue, needs to install the problems such as sealing.
For the boiler of different structure, the requirement of superheater flue sealing is also different, in the time that the area sealing is larger, due to steel construction meeting expanded by heating, easily causes structural damage.As adopt water-cooling wall as flue, though can simplify hermetically-sealed construction, boiler water cycle is had to strict requirement.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of superheater sealing device and has the gas fired-boiler of this device, to by changing the mounting means of superheater, makes superheater sealing device energy accommodate thermal expansion and does not affect sealing effectiveness.
The technical scheme that the utility model is taked is:
A kind of superheater sealing device, comprise the water-cooling wall of superheater tube and boiler furnace both sides, it is characterized in that, above described water-cooling wall, be provided with left side header and right side header, in the header of the left and right sides, seal cross-over connection case, multiple superheater headers are installed in described case, in described superheater header, described superheater tube are installed, described superheater tube stretches into boiler furnace inside.
Further, described case forms segmented Great Wall character shape in the longitudinal direction, and described superheater header is arranged in the multiple protruding chamber of described case.
Further, at described case, expansion joint is set on width.
Further, described expansion joint is arranged on the centre position of described case width.
Further, described superheater tube stretches to the bottom position near described boiler furnace.
A kind of gas fired-boiler with above-mentioned superheater sealing device, comprise drum, burner hearth, it is characterized in that, described burner hearth is horizontal straight tube shape, first end at described burner hearth is provided with burner, the described superheater that passes through at the second end of described burner hearth is installed superheater sealing device, above the second end of described burner hearth, sets gradually economizer and air preheater.
Further, described drum is arranged on the top outside described burner hearth.
Further, the cross section of described burner hearth is approximate parallelogram, and dual-side is perpendicular to horizontal plane, and upper bottom is horizontal by a positive angle.
The beneficial effects of the utility model are:
Segmented seal casing absorbs longitudinal swell increment; Expansion joint absorbs horizontal swell increment, makes boiler can not answer thermal expansion to cause Leakage Gas in the time of operation, ensures the safety of operation.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of rich hydrogen burning boiler;
Accompanying drawing 2 is that the A of accompanying drawing 1 is to view;
Accompanying drawing 3 was structural representations of pipe tube sealing device;
Accompanying drawing 4 is that the B of accompanying drawing 3 is to view.
Label in accompanying drawing is respectively:
1. burner hearth; 2. burner;
3. economizer; 4. air preheater;
5. drum; 6. superheater;
7. water-cooling wall; 8. flue header;
9. case; 10. expansion joint;
11. protruding chambeies; 12. superheater headers.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model superheater sealing device and the detailed description of the invention with the gas fired-boiler of this device are elaborated.
Referring to accompanying drawing 1,2, rich hydrogen burning boiler is for utilization that rich hydrogen waste gas is burnt, and rich hydrogen burning boiler has the burner hearth 1 of a straight-tube shape, and the cross section of burner hearth 1 is approximate parallelogram shape, its dual-side is perpendicular to horizontal plane, and upper bottom is horizontal by an angle that is less than 30 degree.At the first end of burner hearth 1, one or two burner 2 is installed, the second end of burner hearth 1 is evaporator section, above the second end of burner hearth 1, sets gradually economizer 3 and air preheater 4.The second end of burner hearth 1 with and on economizer 3 and air preheater 4 form an exhanst gas outlet passage upwards.Air preheater 4 communicates with burner hearth 1 by pipeline.The drum 5 of boiler is arranged on burner hearth 1 near one jiao of the top of first end.In the interior side near burner hearth the second end of burner hearth 1, superheater 6 is installed, superheater 6 is arranged in burner hearth 1 by the sealing of superheater sealing device.
Referring to accompanying drawing 3,4, the structure of superheater sealing device is to arrange flue header 8 is set respectively above the water-cooling wall 7 of boiler furnace 1 both sides, in the flue header of both sides, seal cross-over connection case 9, case 9 forms segmented Great Wall character shape in the longitudinal direction, case 9 arranges expansion joint 10 on width, expansion joint 10 is positioned at the centre position of case 9 widths, and expansion joint 10 also can arrange multiple.The segmentation structure of case 9 makes case 9 form multiple protruding chambeies 11, in the interior superheater header 12 that arranges in multiple protruding chambeies 11, superheater 6 is installed in superheater header 12, and superheater stretches into boiler furnace 1 inside, and the bottom position of close boiler furnace 1.
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. a superheater sealing device, comprise the water-cooling wall of superheater tube and boiler furnace both sides, it is characterized in that: above described water-cooling wall, be provided with left side header and right side header, in the header of the left and right sides, seal cross-over connection case, multiple superheater headers are installed in described case, in described superheater header, described superheater tube is installed, described superheater tube stretches into boiler furnace inside.
2. superheater sealing device according to claim 1, is characterized in that: at described case, expansion joint is set on width.
3. superheater sealing device according to claim 2, is characterized in that: described expansion joint is arranged on the centre position of described case width.
4. according to the superheater sealing device described in any one in claims 1 to 3, it is characterized in that: described superheater tube stretches to the bottom position near described boiler furnace.
5. one kind has the gas fired-boiler of superheater sealing device as claimed any one in claims 1 to 3, comprise drum, burner hearth, it is characterized in that: described burner hearth is horizontal straight tube shape, first end at described burner hearth is provided with burner, the described superheater that passes through at the second end of described burner hearth is installed superheater sealing device, above the second end of described burner hearth, sets gradually economizer and air preheater.
6. gas fired-boiler according to claim 5, is characterized in that: described drum is arranged on the top outside described burner hearth.
7. according to the gas fired-boiler described in claim 5 or 6, it is characterized in that: the cross section of described burner hearth is approximate parallelogram, dual-side is perpendicular to horizontal plane, and upper bottom is horizontal by a positive angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888045.8U CN203784907U (en) | 2013-12-31 | 2013-12-31 | Superheater sealing device and gas boiler with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320888045.8U CN203784907U (en) | 2013-12-31 | 2013-12-31 | Superheater sealing device and gas boiler with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203784907U true CN203784907U (en) | 2014-08-20 |
Family
ID=51321087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320888045.8U Expired - Fee Related CN203784907U (en) | 2013-12-31 | 2013-12-31 | Superheater sealing device and gas boiler with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203784907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765051A (en) * | 2017-02-22 | 2017-05-31 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of superheater protection device with elimination thermal expansion function |
-
2013
- 2013-12-31 CN CN201320888045.8U patent/CN203784907U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765051A (en) * | 2017-02-22 | 2017-05-31 | 哈尔滨红光锅炉总厂有限责任公司 | A kind of superheater protection device with elimination thermal expansion function |
| CN106765051B (en) * | 2017-02-22 | 2022-09-30 | 哈尔滨红光锅炉总厂有限责任公司 | Superheater protection device with thermal expansion elimination function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20211231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |