CN104633641B - Re-heater flue intermediate separation plate sealing device and installation method - Google Patents
Re-heater flue intermediate separation plate sealing device and installation method Download PDFInfo
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- CN104633641B CN104633641B CN201410819243.8A CN201410819243A CN104633641B CN 104633641 B CN104633641 B CN 104633641B CN 201410819243 A CN201410819243 A CN 201410819243A CN 104633641 B CN104633641 B CN 104633641B
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- dividing plate
- flue
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Abstract
Provided is a re-heater flue intermediate separation plate sealing device and an installation method. In the prior art, a temperature adjustment baffle used for separating the interior of a hearth and an intermediate partition structure between headers are not provided. Among millions of tower-type boilers, the original structure is not applicable and cannot solve the seal and expansion problems of a re-heater flue intermediate separation plate. The re-heater flue intermediate separation plate sealing device comprises an intermediate hydrophobic plate (1), wherein the intermediate hydrophobic plate is respectively connected with a first intermediate separation plate(4), a second intermediate separation plate(5) and a third intermediate separation plate(6), and the first intermediate separation plate and the second intermediate separation plate are sealed by the third intermediate separation plate and the fourth intermediate separation plate(7) respectively. The re-heater flue intermediate separation plate sealing device and the installation method are applied to a boiler of which the smoke is in a circular air flue.
Description
Technical field：
The present invention relates to a kind of central dividing plate sealing device and installation method for reheater flue, by temperature-adjusting baffle cloth
Put in burner hearth, flue gas flow distribution adjusted by twin flue exiting flue gas temperature-adjusting baffle, so as to adjust high-low pressure reheater it
Between heat distribution
Background technology：
Prior art is not used for the midfeather structure between the temperature-adjusting baffle and header inside separated furnace.Million
In tower boiler, original structure is not applied to, it is impossible to solve sealing and the expansion issues of reheater flue central dividing plate.It is million super
Critical tower boiler adopts first flue gas recirculation.It is spaced in needing to arrange at temperature-adjusting baffle and primary superheater entrance header
Plate sealing device, by flue stokehold, stove latter two flue are separated into.Reheater flue central dividing plate sealing device must take into close
Envelope, expansion issues.
The content of the invention：
It is an object of the invention to provide a kind of central dividing plate sealing device and installation method for reheater flue.
Above-mentioned purpose is realized by following technical scheme：
A kind of central dividing plate sealing device for reheater flue, its composition includes：The thin shape plate in centre, described centre
Thin shape plate is connected respectively with central dividing plate one, central dividing plate two and central dividing plate three, described central dividing plate one with it is described in
Space bar two is sealed respectively with described central dividing plate three, central dividing plate four.
The described central dividing plate sealing device for reheater flue, described central dividing plate one and described middle interval
Plate two to be bolted carried out with sealing plate and seals, and described sealing plate is connected respectively with connecting plate, pad.
The described central dividing plate sealing device for reheater flue, described central dividing plate one and described middle interval
Plate two is fastened with described central dividing plate three, central dividing plate four by described bolt, is sealed with described pad.
The described central dividing plate sealing device for reheater flue, described central dividing plate one and described middle interval
U-shaped hole is machined with plate two, for absorbing the swell increment between boiler left and right side, below temperature-adjusting baffle, left and right side wall
Water-cooling wall is welded with described centre and dredges shape plate and described sealing plate.
The installation method of the described central dividing plate sealing device for reheater flue：The method comprises the steps：
Temperature-adjusting baffle is arranged in boiler furnace, in needing to arrange at temperature-adjusting baffle and primary superheater entrance header
Space bar sealing device, by flue stokehold, stove latter two flue are separated into.The concrete shape of reheater flue central dividing plate sealing device
Formula：Shape plate is dredged in one piece of centre of temperature-adjusting baffle arranged beneath, one piece of connecting plate is arranged above primary superheater entrance header,
Dredge and arrange between shape plate and connecting plate central dividing plate one, central dividing plate two, described central dividing plate one and described centre in centre
Dividing plate two is fastened with described central dividing plate three, central dividing plate four by described bolt, is carried out with described pad close
Envelope.
Beneficial effects of the present invention：
1. the present invention is to realize the arrangement form of million tower boiler temperature-adjusting baffles, is designed a kind of new for separating
The midfeather structure between temperature-adjusting baffle and header inside burner hearth..This structure is simple to manufacture, easy for installation, solves again
The sealing of hot device flue central dividing plate and expansion issues, the structure sealed using two-sided clamping plate, are simple to manufacture, it is ensured that safe, steady
Fixed operation
2. the reheater flue central dividing plate of present invention arrangement, is effectively ensured million ultra supercritical tower boiler reheaters
Homoiothermic.The heat distribution between high-low pressure reheater, simple structure, effectively solving sealing, the problem of expansion, fortune are solved very well
Row is safe and reliable.
Reheater flue central dividing plate sealing device is set at temperature-adjusting baffle of the present invention and primary superheater entrance header, will
Flue is separated into stokehold, stove latter two flue.The heat distribution between high-low pressure reheater is solved very well, using two-sided clamping plate
The structure of sealing effectively reduces cost.Make Kazakhstan pot tower boiler that there is higher competitiveness.
Description of the drawings：
Accompanying drawing 1 is the intermediate deck structure schematic diagram of the present invention.
Accompanying drawing 2 is the middle A-A sectional views of accompanying drawing 1.
Accompanying drawing 3 is the middle B-B sectional views of accompanying drawing 1.
Accompanying drawing 4 is the middle C-C sectional views of accompanying drawing 2.
Accompanying drawing 5 is the D-D sectional views in accompanying drawing 2.
Accompanying drawing 6 is the E partial enlarged drawings in accompanying drawing 4.
Accompanying drawing 7 is the F partial enlarged drawings in accompanying drawing 4.
Accompanying drawing 8 is the G partial enlarged drawings in accompanying drawing 4.
Accompanying drawing 9 is the H partial enlarged drawings in accompanying drawing 5.
Accompanying drawing 10 is the J partial enlarged drawings in accompanying drawing 2.
Accompanying drawing 11 is the structural representation that water-cooling wall dredges shape plate.
Accompanying drawing 12 is the K-K sectional views of accompanying drawing 11.
Accompanying drawing 13 is the M partial enlarged drawings in accompanying drawing 11.
Specific embodiment：
Embodiment 1：
A kind of central dividing plate sealing device for reheater flue, its composition includes：The thin shape plate 1 in centre, it is described in
Between dredge shape plate and be connected with central dividing plate 1, central dividing plate 25 and central dividing plate 36 respectively, described central dividing plate one with it is described
Central dividing plate two sealed with described central dividing plate three, central dividing plate 47 respectively.
Embodiment 2：
The central dividing plate sealing device for reheater flue according to embodiment 1, described central dividing plate one with
Described central dividing plate two is sealed by the connection of bolt 10 with sealing plate 3, described sealing plate respectively with connecting plate 2, pad
Piece 8 connects.
Embodiment 3;
The central dividing plate sealing device for reheater flue according to embodiment 1 or 2, described central dividing plate one
Fastened by described bolt with described central dividing plate three, central dividing plate four with described central dividing plate two, with described
Pad sealed.
Embodiment 4;
The central dividing plate sealing device for reheater flue according to embodiment 1 or 2 or 3, described middle interval
U-shaped hole is machined with plate one and described central dividing plate two, for absorbing the swell increment between boiler left and right side, in homoiothermic
Baffle plate lower section, left and right side water wall welding water-cooling wall dredges shape plate 10, prevents flue gas direct current.
Embodiment 5：
A kind of installation method of the central dividing plate sealing device for reheater flue described in embodiment 1-4：The method
Comprise the steps：
Temperature-adjusting baffle is arranged in boiler furnace, in needing to arrange at temperature-adjusting baffle and primary superheater entrance header
Space bar sealing device, by flue stokehold, stove latter two flue are separated into.The concrete shape of reheater flue central dividing plate sealing device
Formula：Shape plate is dredged in one piece of centre of temperature-adjusting baffle arranged beneath, one piece of connecting plate is arranged above primary superheater entrance header,
Dredge and arrange between shape plate and connecting plate central dividing plate one, central dividing plate two, described central dividing plate one and described centre in centre
Dividing plate two is fastened with described central dividing plate three, central dividing plate four by described bolt, is carried out with described pad close
Envelope.
Claims (4)
1. a kind of central dividing plate sealing device for reheater flue, its composition includes：The thin shape plate in centre, is characterized in that：Institute
The centre stated is dredged shape plate and is connected with central dividing plate one, central dividing plate two and central dividing plate three respectively, described central dividing plate one with
The sealing structure of two-sided clamping plate is formed, and is adopted with described central dividing plate three, central dividing plate four between described central dividing plate two
Fastened with bolt, sealed with pad, central dividing plate sealing is set at temperature-adjusting baffle and primary superheater entrance header
Device；Shape plate is dredged in one piece of centre of temperature-adjusting baffle arranged beneath, one piece of connecting plate is arranged above primary superheater entrance header,
Arrange between shape plate and connecting plate central dividing plate one, central dividing plate two in middle dredging.
2. the central dividing plate sealing device for reheater flue according to claim 1, is characterized in that：In described
Two-sided clamping plate sealing structure is formed with sealing plate between space bar one and connecting plate, described sealing plate is by bolt, pad point
It is not connected with central dividing plate one, connecting plate.
3. the central dividing plate sealing device for reheater flue according to claim 1 or 2, is characterized in that：It is described
Central dividing plate one and described central dividing plate two on be machined with U shapes hole, for absorbing the expansion between boiler left and right side
Amount, below temperature-adjusting baffle, left and right side water wall welding water-cooling wall dredges shape plate, prevents flue gas direct current.
4. the installation method of the central dividing plate sealing device for reheater flue described in a kind of one of claim 1-3, its
It is characterized in that：The method comprises the steps：
Temperature-adjusting baffle is arranged in boiler furnace, is spaced in needing to arrange at temperature-adjusting baffle and primary superheater entrance header
Plate sealing device, by flue stokehold, stove latter two flue, reheater flue central dividing plate sealing device concrete form are separated into：
Shape plate is dredged in one piece of centre of temperature-adjusting baffle arranged beneath, one piece of connecting plate is arranged above primary superheater entrance header, in
Between dredge and arrange between shape plate and connecting plate central dividing plate one, central dividing plate two, described central dividing plate one and described middle interval
The sealing structure of two-sided clamping plate is formed with described central dividing plate three, central dividing plate four between plate two, and is carried out tightly using bolt
Gu, sealed with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819243.8A CN104633641B (en) | 2014-12-25 | 2014-12-25 | Re-heater flue intermediate separation plate sealing device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819243.8A CN104633641B (en) | 2014-12-25 | 2014-12-25 | Re-heater flue intermediate separation plate sealing device and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633641A CN104633641A (en) | 2015-05-20 |
| CN104633641B true CN104633641B (en) | 2017-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819243.8A Active CN104633641B (en) | 2014-12-25 | 2014-12-25 | Re-heater flue intermediate separation plate sealing device and installation method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6971867B2 (en) * | 2018-01-25 | 2021-11-24 | 三菱パワー株式会社 | Sealing device and sealing method for exhaust heat recovery boiler and exhaust heat recovery boiler equipped with this |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4665864A (en) * | 1986-07-14 | 1987-05-19 | Foster Wheeler Energy Corporation | Steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits |
| FR2641848B1 (en) * | 1989-01-19 | 1991-08-16 | Stein Industrie | OVERHEATING HARNESS FOR VAPOR SEPARATOR-SUPERHEATER WITH HORIZONTAL TUBES |
| CN202092104U (en) * | 2011-05-02 | 2011-12-28 | 上海锅炉厂有限公司 | Sealing mechanism between forge pieces at junction of smoke deflecting corner water-cooling wall and hearth back wall water-cooling wall |
| CN202092105U (en) * | 2011-05-02 | 2011-12-28 | 上海锅炉厂有限公司 | Sealing mechanism for sealing rear wall exhaust tube and suspension tube water-cooling wall penetrated by smoke deflecting corner water-cooling wall |
| CN103017153A (en) * | 2012-12-26 | 2013-04-03 | 哈尔滨锅炉厂有限责任公司 | 300MW subcritical circulating fluidized bed boiler and working method |
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| CN104633641A (en) | 2015-05-20 |
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