CN104913290A - Sealing device for heated surface at end of boiler - Google Patents
Sealing device for heated surface at end of boiler Download PDFInfo
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- CN104913290A CN104913290A CN201510394386.3A CN201510394386A CN104913290A CN 104913290 A CN104913290 A CN 104913290A CN 201510394386 A CN201510394386 A CN 201510394386A CN 104913290 A CN104913290 A CN 104913290A
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- boiler
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- comb
- brace summer
- heated surface
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Abstract
The invention relates to a sealing device for a heated surface at the end of a boiler, and aims to solve the problems of large machining amount, high required precision, great difficulty and large maintenance amount of end sealing of an existing boiler. A supporting beam (2) is vertically arranged, two horizontal sealing guard plates (1) are horizontally mounted on the upper portion and the lower portion of the supporting beam (2), a channel steel (3) is mounted on the outer side of the end of each horizontal sealing guard plate (1), a comb plate (5) is perpendicular to the supporting beam (2) and vertically fixed onto the supporting beam (2), a plurality of pipe clamps (4) are sequentially and fixedly mounted on the comb plate (5) close to one side of a heat exchange pipe at the end of the boiler from top to bottom, and the heat exchange pipe at the end of the boiler can penetrate the comb plate (5). The sealing device is applied to sealing the heated surface at the end of the boiler.
Description
Technical field
The present invention relates to a kind of sealing device, be specifically related to a kind of sealing device for heated surface at the end of boiler.
Background technology
Heated surface at the end of boiler utilizes the heat of high-temperature flue gas to heat working medium in heating surface, thus reduces exhaust gas temperature, improves boiler combined cycle efficiency, reaches the object of energy-conserving and environment-protective.Therefore the excellent sealing of heated surface at the end of boiler plays vital effect when boiler operatiopn.
Original structure Fig. 1: the sealing majority of existing heated surface at the end of boiler adopts shaped steel backplate form, and heating surface surrounding steel panel surrounds, and acts on boiler body framework, sees detail drawing 2.The form that heating surface adopts brace summer to coordinate with pipe clamp is fixed, and sees detail drawing 3.Brace summer acts on the steel panel of both sides, and steel panel is offered brace summer perforate, and heated surface bundle straight part level passes front and back steel panel, then seals with comb plate, comb joint.First this structure needs all to carry out perforate to heating surface surrounding steel panel in actual production process, higher to requirement on machining accuracy, otherwise can affect in-site installation.Consider it is also uneconomic from cost angle in addition, the parts that the composition structure of this back-end surfaces sealing needs mainly contain: four sides steel panel, brace summer, pipe clamp, comb plate, comb joint, for supporting the framework of surrounding steel panel, steel consumption amount is large.Secondly, this hermetically-sealed construction also bothers relatively when overhauling in the future, both sides, front and back wallboard need be opened, and finds out need overhaul a little and is restored by both sides, front and back wallboard.
Summary of the invention
The object of the invention is the problem that processing capacity is large, precision prescribed is high, installation difficulty is large and maintenance amount is large existed to solve the sealing of existing boiler tail.And then a kind of sealing device for heated surface at the end of boiler is provided.
Technical scheme of the present invention is: a kind of sealing device for heated surface at the end of boiler comprises two horizontal seal backplates, brace summer, two channel-section steels and multiple pipe clamp, brace summer is vertically arranged, two horizontal seal backplate levels are arranged on the upper and lower of brace summer, a channel-section steel is installed outside the end of each horizontal seal backplate, it also comprises comb plate, comb joint, comb plate, comb joint is perpendicular to brace summer and be fixed on brace summer at vertical direction, multiple pipe clamp is fixedly mounted on from top to bottom successively on the comb plate, comb joint of boiler tail heat exchanger tube side, and boiler tail heat exchanger tube can pass comb plate, comb joint.
The present invention compared with prior art has following effect:
1, heating surface brace summer of the present invention directly serves as boiler tail framework, both ensure that the version that former boiler heating surface is fixing, effectively reduces again steel consumption cost.General is 1/2nd of original structure steel panel weight.
2, the present invention cancels both sides, front and back steel panel, thus exempts heated surface bundle perforate through walls, reduces difficulty of processing on the one hand, can save steel consumption on the one hand.
3, both sides of the present invention steel panel directly acts on heating surface brace summer, exempts the brace summer perforate in former boiler structure on the steel panel of both sides, and packaging efficiency improves 30%, avoids and affects field erected problem due to machining accuracy.
4, comb plate, comb joint of the present invention welds with pipe clamp monolithic, without the need to opening both sides, front and back overall steel backplate during maintenance, directly being removed to take out by comb plate, comb joint monolithic and need overhaul tube panel and carry out maintain and replace, very convenient.
Accompanying drawing explanation
Fig. 1 is the overall structure front view of prior art; Fig. 2 is the partial enlarged drawing of Fig. 1 at A place; Fig. 3 is the partial enlarged drawing of Fig. 1 at B place; Fig. 4 is the structural representation that the present invention is arranged on boiler tail heat exchanger tube; Fig. 5 is the partial enlarged drawing of Fig. 4 at C place; Fig. 6 is overall structure side view of the present invention.
Detailed description of the invention
Detailed description of the invention one: composition graphs 1 to Fig. 6 illustrates present embodiment, present embodiment comprises two horizontal seal backplates 1, brace summer 2, two channel-section steels 3 and multiple pipe clamp 4, brace summer 2 is vertically arranged, two horizontal seal backplate 1 levels are arranged on the upper and lower of brace summer 2, a channel-section steel 3 is installed outside the end of each horizontal seal backplate 1, it also comprises comb plate, comb joint 5, comb plate, comb joint 5 is perpendicular to brace summer 2 and be fixed on brace summer 2 at vertical direction, multiple pipe clamp 4 is fixedly mounted on from top to bottom successively on the comb plate, comb joint 5 of boiler tail heat exchanger tube side, and boiler tail heat exchanger tube can pass comb plate, comb joint 5.
Fixing for heating surface brace summer as boiler tail framework, coordinates with pipe clamp and installs, reach the effect of fixing heating surface by present embodiment, cancels boiler tail framework in original structure.
The both sides of present embodiment are protected and are directly acted on heating surface brace summer, can remove the brace summer perforate of both sides steel panel in original structure figure from.
Present embodiment utilizes comb plate, comb joint to replace steel panel before and after in original structure figure, directly carries out seal weld with pipe clamp and both sides steel panel, can cancel the front and back steel panel in original structure figure, thus release backplate perforate one procedure.
Present embodiment comb plate, comb joint monolithic makes, and with pipe clamp welded seal, during maintenance, tube bank can single screen dismounting in the future.
Detailed description of the invention two: composition graphs 6 illustrates present embodiment, the comb plate, comb joint 5 of present embodiment comprises the first sheet material 5-1, tri-plate 5-3 and multiple second sheet material 5-2, multiple 1/1st semicircle pit 5-1-1 is offered in the lower end of the first sheet material 5-1, the top and bottom of the second sheet material 5-2 offer multiple 1/2nd semicircle pit 5-1-2 respectively, multiple 1/3rd semicircle pit 5-1-3 is offered in the upper end of tri-plate 5-3, first sheet material 5-1 and multiple second sheet material 5-2 is from top to bottom fixedly connected sequentially, and the 1/1st adjacent semicircle pit 5-1-1 and the 1/2nd semicircle pit 5-1-2 forms circular hole after fastening, / 2nd semicircle pit 5-1-2 and the 1/3rd semicircle pit 5-1-3 forms circular hole after fastening.Setting like this, from cost angle analysis, in steel consumption amount and factory, manufacture is about 1/2nd of former guard board structure form, overhaul angle analysis, the tail sealing structure after remodeling, if when changing separately tube panel from operation in the future, the comb plate, comb joint that tube panel is connected is taken off and just can take out tube panel, change before remodeling after tube panel then needs bilateral symmetry backplate entirety to take off and again tube panel is extracted out, compare the hermetically-sealed construction before remodeling, after tail sealing structure remodeling, greatly can shorten the repair time.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention three: composition graphs 6 illustrates present embodiment, the first sheet material 5-1 of present embodiment is from top to bottom fixedly connected with by the mode of welding successively with multiple second sheet material 5-2.Setting like this, during maintenance, tube bank can single screen dismounting in the future.Other composition is identical with detailed description of the invention one or two with annexation.
Detailed description of the invention four: composition graphs 5 and Fig. 6 illustrate present embodiment, the pipe clamp 4 of present embodiment comprises pipe clamp and lower tube clip, forms boiler tail heat exchanger tube container cavity after upper pipe clamp and lower tube clip fasten.Setting like this, is convenient to place heat exchanger tube.Other composition and annexation and detailed description of the invention one, two or three identical.
After brace summer is in place, after single screen heat exchanger tube and pipe clamp form entirety, be welded and fixed with brace summer, after all tube panels all install, heat exchanger tube both sides utilize comb plate, comb joint to seal.
Although the present invention discloses as above with preferred embodiment; but and be not used to limit the present invention; those skilled in the art can also do other changes in spirit of the present invention; and be applied in the NM field of the present invention; certainly, these changes done according to the present invention's spirit all should be included in the present invention's scope required for protection.
Claims (4)
1. the sealing device for heated surface at the end of boiler, it comprises two horizontal seal backplates (1), brace summer (2), two channel-section steels (3) and multiple pipe clamp (4), brace summer (2) is vertically arranged, two horizontal seal backplate (1) levels are arranged on the upper and lower of brace summer (2), a channel-section steel (3) is installed outside the end of each horizontal seal backplate (1), it is characterized in that: it also comprises comb plate, comb joint (5), comb plate, comb joint (5) is perpendicular to brace summer (2) and be fixed on brace summer (2) at vertical direction, multiple pipe clamp (4) is fixedly mounted on from top to bottom successively on the comb plate, comb joint (5) of boiler tail heat exchanger tube side, and boiler tail heat exchanger tube can pass comb plate, comb joint (5).
2. a kind of sealing device for heated surface at the end of boiler according to claim 1, it is characterized in that: comb plate, comb joint (5) comprises the first sheet material (5-1), tri-plate (5-3) and multiple second sheet material (5-2), multiple 1/1st semicircle pit (5-1-1) is offered in the lower end of the first sheet material (5-1), the top and bottom of the second sheet material (5-2) offer multiple 1/2nd semicircle pit (5-1-2) respectively, multiple 1/3rd semicircle pit (5-1-3) is offered in the upper end of tri-plate (5-3), first sheet material (5-1) and multiple second sheet material (5-2) are from top to bottom fixedly connected sequentially, and the 1/1st adjacent semicircle pit (5-1-1) and the 1/2nd semicircle pit (5-1-2) form circular hole after fastening, circular hole is formed after 1/2nd semicircle pit (5-1-2) and the 1/3rd semicircle pit (5-1-3) fasten.
3. a kind of sealing device for heated surface at the end of boiler according to claim 2, is characterized in that: the first sheet material (5-1) and multiple second sheet material (5-2) are from top to bottom fixedly connected with by the mode of welding successively.
4. a kind of sealing device for heated surface at the end of boiler according to claim 3, is characterized in that: pipe clamp (4) comprises pipe clamp and lower tube clip, forms boiler tail heat exchanger tube container cavity after upper pipe clamp and lower tube clip fasten.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394386.3A CN104913290B (en) | 2015-07-07 | 2015-07-07 | A kind of sealing device for heated surface at the end of boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510394386.3A CN104913290B (en) | 2015-07-07 | 2015-07-07 | A kind of sealing device for heated surface at the end of boiler |
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| Publication Number | Publication Date |
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| CN104913290A true CN104913290A (en) | 2015-09-16 |
| CN104913290B CN104913290B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510394386.3A Active CN104913290B (en) | 2015-07-07 | 2015-07-07 | A kind of sealing device for heated surface at the end of boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299688A (en) * | 2015-11-25 | 2016-02-03 | 杭州新世纪能源环保工程股份有限公司 | Boiler top leakage preventing device with efficient seal performance of waste heat boiler |
| CN105937757A (en) * | 2016-06-08 | 2016-09-14 | 无锡华光锅炉股份有限公司 | Hanging clamping frame structure for boiler superheater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1560897A1 (en) * | 1988-04-27 | 1990-04-30 | Производственное Объединение "Красный Котельщик" Им.60-Летия Союза Ссср | Convection heated surface |
| CN201196483Y (en) * | 2008-02-04 | 2009-02-18 | 无锡华光锅炉股份有限公司 | Self-supporting structure for boiler tail convection heating surface |
| CN202092106U (en) * | 2011-05-02 | 2011-12-28 | 上海锅炉厂有限公司 | Seal structure arranged between furnace arch and front wall of rear flue |
| CN203940411U (en) * | 2014-06-25 | 2014-11-12 | 伟明环保设备有限公司 | A kind of arrangement of convection superheater |
| CN204084318U (en) * | 2014-08-13 | 2015-01-07 | 哈尔滨哈锅锅炉容器工程有限责任公司 | A kind of sealing device for heated surface at the end of boiler |
| CN204786319U (en) * | 2015-07-07 | 2015-11-18 | 哈尔滨哈锅锅炉工程技术有限公司 | A sealing device that is used for boiler afterbody to receive hot side |
-
2015
- 2015-07-07 CN CN201510394386.3A patent/CN104913290B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1560897A1 (en) * | 1988-04-27 | 1990-04-30 | Производственное Объединение "Красный Котельщик" Им.60-Летия Союза Ссср | Convection heated surface |
| CN201196483Y (en) * | 2008-02-04 | 2009-02-18 | 无锡华光锅炉股份有限公司 | Self-supporting structure for boiler tail convection heating surface |
| CN202092106U (en) * | 2011-05-02 | 2011-12-28 | 上海锅炉厂有限公司 | Seal structure arranged between furnace arch and front wall of rear flue |
| CN203940411U (en) * | 2014-06-25 | 2014-11-12 | 伟明环保设备有限公司 | A kind of arrangement of convection superheater |
| CN204084318U (en) * | 2014-08-13 | 2015-01-07 | 哈尔滨哈锅锅炉容器工程有限责任公司 | A kind of sealing device for heated surface at the end of boiler |
| CN204786319U (en) * | 2015-07-07 | 2015-11-18 | 哈尔滨哈锅锅炉工程技术有限公司 | A sealing device that is used for boiler afterbody to receive hot side |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299688A (en) * | 2015-11-25 | 2016-02-03 | 杭州新世纪能源环保工程股份有限公司 | Boiler top leakage preventing device with efficient seal performance of waste heat boiler |
| CN105299688B (en) * | 2015-11-25 | 2017-06-06 | 杭州新世纪能源环保工程股份有限公司 | A kind of waste heat boiler furnace roof device for preventing leakage with efficient sealed performance |
| CN105937757A (en) * | 2016-06-08 | 2016-09-14 | 无锡华光锅炉股份有限公司 | Hanging clamping frame structure for boiler superheater |
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| Publication number | Publication date |
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| CN104913290B (en) | 2016-09-21 |
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