CN104633641A - 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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- CN104633641A CN104633641A CN201410819243.8A CN201410819243A CN104633641A CN 104633641 A CN104633641 A CN 104633641A CN 201410819243 A CN201410819243 A CN 201410819243A CN 104633641 A CN104633641 A CN 104633641A
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- dividing plate
- central dividing
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- sealing device
- 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 for reheater flue and installation method, temperature-adjusting baffle is arranged in burner hearth, regulate flue gas flow to distribute by twin flue exiting flue gas temperature-adjusting baffle, thus regulate the heat distribution between high-low pressure reheater
background technology:
prior art is not used for the midfeather structure between the temperature-adjusting baffle of separated furnace inside and header.In 1,000,000 tower boilers, original structure is inapplicable, cannot solve sealing and the expansion issues of reheater flue central dividing plate.1000000 ultra supercritical tower boilers adopt flue gas recirculation first.Need to arrange central dividing plate sealing device at temperature-adjusting baffle and primary superheater entrance header place, flue is separated into stokehold, latter two flue of stove.Reheater flue central dividing plate sealing device must consider sealing, expansion issues.
summary of the invention:
the object of this invention is to provide a kind of central dividing plate sealing device for reheater flue and installation method.
above-mentioned object is realized by following technical scheme:
a kind of central dividing plate sealing device for reheater flue, its composition comprises: middle thin shape plate, described centre is dredged shape plate and is connected with central dividing plate one, central dividing plate two and central dividing plate three respectively, and described central dividing plate one seals with described central dividing plate three, central dividing plate four respectively with described central dividing plate two.
the described central dividing plate sealing device for reheater flue, described central dividing plate one is bolted with described central dividing plate two and seals with sealing plate, and described sealing plate is connected with connecting plate, pad respectively.
the described central dividing plate sealing device for reheater flue, described central dividing plate one is undertaken fastening with described central dividing plate three, central dividing plate four by described bolt with described central dividing plate two, seals with described pad.
the described central dividing plate sealing device for reheater flue, described central dividing plate one and described central dividing plate two are processed with U-shaped hole, be used for absorbing along the swell increment between boiler left and right side, below temperature-adjusting baffle, left and right side water 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, needs to arrange central dividing plate sealing device at temperature-adjusting baffle and primary superheater entrance header place, flue is separated into stokehold, latter two flue of stove.Reheater flue central dividing plate sealing device concrete form: dredge shape plate in temperature-adjusting baffle arranged beneath one piece of centre, one piece of connecting plate is arranged above primary superheater entrance header, dredge in centre between shape plate and connecting plate and arrange central dividing plate one, central dividing plate two, described central dividing plate one is undertaken fastening with described central dividing plate three, central dividing plate four by described bolt with described central dividing plate two, seals with described pad.
beneficial effect of the present invention:
1. the present invention is the arrangement form realizing 1,000,000 tower boiler temperature-adjusting baffles, designs the midfeather structure between a kind of novel temperature-adjusting baffle for separated furnace inside and header.。This structure manufacture is simple, easy for installation, solves sealing and the expansion issues of reheater flue central dividing plate, adopts the structure that two-sided clamping plate seal, manufacture simple, ensure safety, stable operation
2. the reheater flue central dividing plate of the present invention's layout, effectively ensures the temperature adjustment of 1,000,000 ultra supercritical tower boiler reheaters.Solve the heat distribution between high-low pressure reheater very well, structure is simple, and the problem effectively solve sealing, expanding is safe and reliable to operation.
temperature-adjusting baffle of the present invention and primary superheater entrance header place arrange reheater flue central dividing plate sealing device, flue are separated into stokehold, latter two flue of stove.Solve the heat distribution between high-low pressure reheater very well, the structure adopting two-sided clamping plate to seal effectively reduces cost.Kazakhstan pot tower boiler is made to have stronger competitiveness.
accompanying drawing illustrates:
accompanying drawing 1 is intermediate deck structure schematic diagram of the present invention.
accompanying drawing 2 is middle A-A sectional views of accompanying drawing 1.
accompanying drawing 3 is middle B-B sectional views of accompanying drawing 1.
accompanying drawing 4 is 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 structural representations that shape plate dredged by water-cooling wall.
accompanying drawing 12 is K-K sectional views of accompanying drawing 11.
accompanying drawing 13 is the M partial enlarged drawings in accompanying drawing 11.
detailed description of the invention:
embodiment 1:
a kind of central dividing plate sealing device for reheater flue, its composition comprises: middle thin shape plate 1, described centre is dredged shape plate and is connected with central dividing plate 1, central dividing plate 25 and central dividing plate 36 respectively, and described central dividing plate one seals with described central dividing plate three, central dividing plate 47 respectively with described central dividing plate two.
embodiment 2:
the central dividing plate sealing device for reheater flue according to embodiment 1, described central dividing plate one and described central dividing plate two are connected by bolt 10 and seal with sealing plate 3, and described sealing plate is connected with connecting plate 2, pad 8 respectively.
embodiment 3;
the central dividing plate sealing device for reheater flue according to embodiment 1 or 2, described central dividing plate one is undertaken fastening with described central dividing plate three, central dividing plate four by described bolt with described central dividing plate two, seals with described pad.
embodiment 4;
the central dividing plate sealing device for reheater flue according to embodiment 1 or 2 or 3, described central dividing plate one and described central dividing plate two are processed with U-shaped hole, be used for absorbing along the swell increment between boiler left and right side, below temperature-adjusting baffle, shape plate 10 dredged by left and right side water wall welding water-cooling wall, 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 comprises the steps:
temperature-adjusting baffle is arranged in boiler furnace, needs to arrange central dividing plate sealing device at temperature-adjusting baffle and primary superheater entrance header place, flue is separated into stokehold, latter two flue of stove.Reheater flue central dividing plate sealing device concrete form: dredge shape plate in temperature-adjusting baffle arranged beneath one piece of centre, one piece of connecting plate is arranged above primary superheater entrance header, dredge in centre between shape plate and connecting plate and arrange central dividing plate one, central dividing plate two, described central dividing plate one is undertaken fastening with described central dividing plate three, central dividing plate four by described bolt with described central dividing plate two, seals with described pad.
Claims (5)
1. the central dividing plate sealing device for reheater flue, its composition comprises: middle thin shape plate, it is characterized in that: described centre 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 seals with described central dividing plate three, central dividing plate four respectively with described central dividing plate two.
2. the central dividing plate sealing device for reheater flue according to claim 1, it is characterized in that: described central dividing plate one is bolted with described central dividing plate two and seals with sealing plate, and described sealing plate is connected with connecting plate, pad respectively.
3. the central dividing plate sealing device for reheater flue according to claim 1 and 2, it is characterized in that: described central dividing plate one is undertaken fastening with described central dividing plate three, central dividing plate four by described bolt with described central dividing plate two, seals with described pad.
4. the central dividing plate sealing device for reheater flue according to claim 1 or 2 or 3, it is characterized in that: described central dividing plate one and described central dividing plate two are processed with U-shaped hole, be used for absorbing along the swell increment between boiler left and right side, below temperature-adjusting baffle, shape plate dredged by left and right side water wall welding water-cooling wall, prevents flue gas direct current.
5. the installation method of the central dividing plate sealing device for reheater flue that one of claim 1-4 is described: it is characterized in that: the method comprises the steps:
Temperature-adjusting baffle is arranged in boiler furnace, need to arrange central dividing plate sealing device at temperature-adjusting baffle and primary superheater entrance header place, flue is separated into stokehold, latter two flue of stove, reheater flue central dividing plate sealing device concrete form: dredge shape plate in temperature-adjusting baffle arranged beneath one piece of centre, one piece of connecting plate is arranged above primary superheater entrance header, dredge in centre between shape plate and connecting plate and arrange central dividing plate one, central dividing plate two, described central dividing plate one and described central dividing plate two and described central dividing plate three, central dividing plate four is undertaken fastening by described bolt, seal with described pad.
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CN201410819243.8A CN104633641B (en) | 2014-12-25 | 2014-12-25 | Re-heater flue intermediate separation plate sealing device and installation method |
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CN201410819243.8A CN104633641B (en) | 2014-12-25 | 2014-12-25 | Re-heater flue intermediate separation plate sealing device and installation method |
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CN104633641A true CN104633641A (en) | 2015-05-20 |
CN104633641B CN104633641B (en) | 2017-05-03 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110081409A (en) * | 2018-01-25 | 2019-08-02 | 三菱日立电力系统株式会社 | Sealing device and the heat recovery boiler and its encapsulating method for having the sealing device |
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EP0253112A1 (en) * | 1986-07-14 | 1988-01-20 | Foster Wheeler Energy Corporation | A steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits |
EP0379115A1 (en) * | 1989-01-19 | 1990-07-25 | STEIN INDUSTRIE Société anonyme dite: | Superheater tube bundle for a horizontal steam separator-reheater |
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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2014
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EP0253112A1 (en) * | 1986-07-14 | 1988-01-20 | Foster Wheeler Energy Corporation | A steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits |
EP0379115A1 (en) * | 1989-01-19 | 1990-07-25 | STEIN INDUSTRIE Société anonyme dite: | Superheater tube bundle for a horizontal steam separator-reheater |
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 |
Non-Patent Citations (1)
Title |
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吕健,王占军: "超超临界锅炉省煤器出口烟道中间隔板结构改进", 《锅炉制造》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110081409A (en) * | 2018-01-25 | 2019-08-02 | 三菱日立电力系统株式会社 | Sealing device and the heat recovery boiler and its encapsulating method for having the sealing device |
CN110081409B (en) * | 2018-01-25 | 2021-01-26 | 三菱动力株式会社 | Sealing device, waste heat recovery boiler provided with sealing device, and sealing method for waste heat recovery boiler |
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