CN203797677U - Sealing device for tail smoke flue bottom of boiler - Google Patents
Sealing device for tail smoke flue bottom of boiler Download PDFInfo
- Publication number
- CN203797677U CN203797677U CN201420144576.0U CN201420144576U CN203797677U CN 203797677 U CN203797677 U CN 203797677U CN 201420144576 U CN201420144576 U CN 201420144576U CN 203797677 U CN203797677 U CN 203797677U
- Authority
- CN
- China
- Prior art keywords
- sealing
- boiler
- steel plate
- flue
- smoke flue
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a sealing device for a tail smoke flue bottom of a boiler. The sealing device is capable of guaranteeing sealing performance and efficient and safe operation of the boiler, excellent in thermal expansion, simple in structure and convenient to mount. The sealing device for the tail smoke flue bottom of the boiler comprises a water cooling wall, a smoke flue, a tail smoke flue outlet and a bottom header. The tail smoke flue outlet is arranged on the lower portion of the rear wall side of a smoke flue, the bottom header is arranged below an inlet of the bottom smoke flue outlet, and the water cooling wall is arranged on the front wall of the smoke flue. The sealing device is characterized in that a steel sealing plate is paved at the bottom of the smoke flue and is supported on an upper plane of a platform frame formed by supporting box iron, the bottom of the platform is connectively welded with the upper end face of a support rod at the corresponding position, the bottom of the support rod is connectively welded with a bottom frame of the boiler, and the jointed positions of the steel sealing plate and the bottom header are connectively welded.
Description
Technical field
The utility model relates to the technical field of boiler structure, is specially the sealing device of a kind of boiler back end ductwork bottom.
Background technology
Because the main heating surface of forced circulation gas-fired water heating boiler is supporting construction, and being designed to wall from boiler, boiler export flue gas draws, this class arrangement need to become hermetically-sealed construction by the bottom design of heated surface at the end of boiler, the hermetically-sealed construction of existing structure does not consider that the overall thermal of boiler expands, it is in boiler running process, emergency case easily occurs, boiler can not normally be moved, maintenance, replacing hermetically-sealed construction are wasted time and energy.
Summary of the invention
For the problems referred to above, the utility model provides the sealing device of a kind of boiler back end ductwork bottom, and it can ensure sealing, has again good thermal expansivity, guarantees high efficiency boiler safe operation, and simple in structure being convenient to installed.
The sealing device of a kind of boiler back end ductwork bottom, its technical scheme is such: it comprises water-cooling wall, flue, back-end ductwork outlet, bottom header, described back-end ductwork outlet is positioned at the bottom of the rear wall side of described flue, described bottom header is positioned at the below of the porch of described bottom flue outlet, described water-cooling wall is positioned at the front wall displacement of described flue, it is characterized in that: mating formation in the bottom of described flue has sealing steel plate, described sealing steel plate is supported on the upper plane of the platform framework that supporting steel is combined to form, the bottom welding of described platform framework connects the upper surface of the support bar of correspondence position, the bottom welding of described support bar connects the under(-)chassis of boiler, the link position place of described sealing steel plate and described bottom header is welded to connect, the top evagination end face of the end face welded joints seal flap towards described flue side of described water-cooling wall, the lower vertical end face of described sealing flap is close to the upper surface of described sealing steel plate, and be welded to connect, gap place plug between described sealing flap and the pipe of described water-cooling wall is equipped with sealing fill block.
It is further characterized in that: described sealing steel plate is provided with manhole door near the position of described bottom header side, and described manhole door is arranged in the lower surface of described sealing steel plate, and described manhole door is opened down;
The horizontal length of described sealing flap is less than its vertical length, and the inner side of described sealing steel plate exceeds the lower vertical face of described sealing flap.
Adopt after structure of the present utility model, because sealing steel plate is equipped with in the bottom of flue, the link position place of sealing steel plate and described bottom header is welded to connect, the top evagination end face of the end face welded joints seal flap towards described flue side of water-cooling wall, the lower vertical end face of sealing flap is close to the upper surface of described sealing steel plate, and be welded to connect, gap place plug between described sealing flap and the pipe of described water-cooling wall is equipped with sealing fill block, it is sealed in flue the flue gas in flue, can flow out from back-end ductwork outlet swimmingly, and because sealing steel plate is supported on the upper plane of the platform framework that supporting steel is combined to form, there is not welding relation in it, sealing steel plate only relies on gravity to be supported on the upper plane of the platform framework that supporting steel is combined to form, in the time there is thermal expansion, between sealing steel plate and its structure being welded to connect, can there is thermal expansion, to sum up, it can ensure sealing, there is again good thermal expansivity, guarantee high efficiency boiler safe operation, and simple in structure being convenient to installed.
Brief description of the drawings
Fig. 1 is the structural representation that the utility model is applied to boiler;
Fig. 2 is front view structural representation of the present utility model;
Fig. 3 is the top view structural representation of Fig. 2;
Fig. 4 is that the A-A of Fig. 3 cuts open structure for amplifying schematic diagram;
Fig. 5 is the local structure for amplifying schematic diagram in the B place of Fig. 3.
Detailed description of the invention
The sealing device of a kind of boiler back end ductwork bottom, see Fig. 1～Fig. 5: it comprises water-cooling wall 1, flue 2, back-end ductwork outlet 3, bottom header 4, back-end ductwork outlet 3 is positioned at the bottom of the rear wall side of flue 2, bottom header 4 is positioned at the below of the porch of bottom flue outlet 3, water-cooling wall 1 is positioned at the front wall displacement of flue 2, mating formation in the bottom of flue 2 has sealing steel plate 5, sealing steel plate 5 is supported on the upper plane of the platform framework 12 that supporting steel 6 is combined to form, the bottom welding of platform framework 12 connects the upper surface of the support bar 7 of correspondence position, the bottom welding of support bar 7 connects the under(-)chassis 8 of boiler, the link position place of sealing steel plate 5 and bottom header 4 is welded to connect, the top evagination end face of the end face welded joints seal flap 9 towards flue 2 sides of water-cooling wall 1, the lower vertical end face of sealing flap 9 is close to the upper surface that seals steel plate 5, and be welded to connect, gap place plug between sealing flap 9 and the pipe of water-cooling wall 1 is equipped with sealing fill block 10.
Sealing steel plate 5 is provided with manhole door 11 near the position of bottom header 4 sides, and manhole door 11 is arranged in the lower surface of sealing steel plate 5, and manhole door 11 is opened down, and manhole door 11 is for maintenance; The horizontal length of sealing flap 9 is less than its vertical length, and the inner side of sealing steel plate 5 exceeds the lower vertical face that seals flap 9.
Claims (3)
1. the sealing device of a boiler back end ductwork bottom, it comprises water-cooling wall, flue, back-end ductwork outlet, bottom header, described back-end ductwork outlet is positioned at the bottom of the rear wall side of described flue, described bottom header is positioned at the below of the porch of described bottom flue outlet, described water-cooling wall is positioned at the front wall displacement of described flue, it is characterized in that: mating formation in the bottom of described flue has sealing steel plate, described sealing steel plate is supported on the upper plane of the platform framework that supporting steel is combined to form, the bottom welding of described platform framework connects the upper surface of the support bar of correspondence position, the bottom welding of described support bar connects the under(-)chassis of boiler, the link position place of described sealing steel plate and described bottom header is welded to connect, the top evagination end face of the end face welded joints seal flap towards described flue side of described water-cooling wall, the lower vertical end face of described sealing flap is close to the upper surface of described sealing steel plate, and be welded to connect, gap place plug between described sealing flap and the pipe of described water-cooling wall is equipped with sealing fill block.
2. the sealing device of a kind of boiler back end ductwork according to claim 1 bottom, it is characterized in that: described sealing steel plate is provided with manhole door near the position of described bottom header side, described manhole door is arranged in the lower surface of described sealing steel plate, and described manhole door is opened down.
3. the sealing device of a kind of boiler back end ductwork according to claim 1 and 2 bottom, is characterized in that: the horizontal length of described sealing flap is less than its vertical length, and the inner side of described sealing steel plate exceeds the lower vertical face of described sealing flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144576.0U CN203797677U (en) | 2014-03-28 | 2014-03-28 | Sealing device for tail smoke flue bottom of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420144576.0U CN203797677U (en) | 2014-03-28 | 2014-03-28 | Sealing device for tail smoke flue bottom of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797677U true CN203797677U (en) | 2014-08-27 |
Family
ID=51379884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420144576.0U Withdrawn - After Issue CN203797677U (en) | 2014-03-28 | 2014-03-28 | Sealing device for tail smoke flue bottom of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797677U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912888A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Sealing device at bottom of tail flue of boiler |
| CN104197349A (en) * | 2014-09-18 | 2014-12-10 | 无锡市华通电力设备有限公司 | Boiler smoke bypass reversing retainer device |
| CN104654335A (en) * | 2014-12-27 | 2015-05-27 | 哈尔滨锅炉厂有限责任公司 | Heat pipe sealing device and sealing device for flue |
| CN109469908A (en) * | 2018-12-21 | 2019-03-15 | 无锡华光锅炉股份有限公司 | A kind of waste incinerator water-cooled furnace wall structure |
| CN110715312A (en) * | 2019-10-24 | 2020-01-21 | 哈尔滨锅炉厂有限责任公司 | Hanging sealing device for tail flue of gas boiler |
-
2014
- 2014-03-28 CN CN201420144576.0U patent/CN203797677U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912888A (en) * | 2014-03-28 | 2014-07-09 | 无锡华光锅炉股份有限公司 | Sealing device at bottom of tail flue of boiler |
| CN103912888B (en) * | 2014-03-28 | 2016-08-17 | 无锡华光锅炉股份有限公司 | A kind of sealing device bottom boiler back end ductwork |
| CN104197349A (en) * | 2014-09-18 | 2014-12-10 | 无锡市华通电力设备有限公司 | Boiler smoke bypass reversing retainer device |
| CN104654335A (en) * | 2014-12-27 | 2015-05-27 | 哈尔滨锅炉厂有限责任公司 | Heat pipe sealing device and sealing device for flue |
| CN104654335B (en) * | 2014-12-27 | 2017-06-06 | 哈尔滨锅炉厂有限责任公司 | For the heat pipe seal and encapsulating method of flue |
| CN109469908A (en) * | 2018-12-21 | 2019-03-15 | 无锡华光锅炉股份有限公司 | A kind of waste incinerator water-cooled furnace wall structure |
| CN109469908B (en) * | 2018-12-21 | 2024-04-16 | 无锡华光环保能源集团股份有限公司 | Water-cooling furnace wall structure of garbage incinerator |
| CN110715312A (en) * | 2019-10-24 | 2020-01-21 | 哈尔滨锅炉厂有限责任公司 | Hanging sealing device for tail flue of gas boiler |
| CN110715312B (en) * | 2019-10-24 | 2021-10-01 | 哈尔滨锅炉厂有限责任公司 | Hanging sealing device for tail flue of gas boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |