CN2331861Y - Three-way sealing device for dilatation joint of boiler - Google Patents
Three-way sealing device for dilatation joint of boiler Download PDFInfo
- Publication number
- CN2331861Y CN2331861Y CN 98235821 CN98235821U CN2331861Y CN 2331861 Y CN2331861 Y CN 2331861Y CN 98235821 CN98235821 CN 98235821 CN 98235821 U CN98235821 U CN 98235821U CN 2331861 Y CN2331861 Y CN 2331861Y
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- boiler
- superheater
- wall
- sealing device
- membrane type
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Abstract
The utility model relates to a three-way expansion-gap sealing device of a boiler, comprising membrane wall packing superheaters (5), a heat shield (11), an expansion joint (6) and a swing check piece (7), wherein, the membrane wall packing superheaters are only arranged on two side walls of a boiler horizontal passway; the upper parts of the membrane wall packing superheaters are hung on a hearth water-cooled wall (2) and a light boiler wall (4) of the horizontal hallway, and the lower parts can freely slide. The heat shield (11) sealing the expansion gap (1) is divided into a right and a left halves. The expansion joint (6) is connected with relevant positions to form effective seal. The swing check piece (7) is arranged between the hearth and the horizontal passageway. The utility model with simple structure and reliable sealing performance is suitable for sealed connection between a membrane water-cooled wall pipe laying boiler wall of the hearth and the light boiler wall of the horizontal passageway.
Description
The utility model relate to seam between fin panel casing tube and horizontal passageway light boiler setting Sealing Technology, be specially boiler three-dimensional dilatation joint sealing device.
When boiler furnace is the fin panel casing tube, and horizontal passageway has a seam between the two when not having the light boiler setting of bag wall heating surface, is commonly referred to boiler three-dimensional dilatation joint.This seam is in the high-temperature region of about 1000 ℃ of furnace outlet flue gas, and the differential expansion of both sides furnace wall is bigger, and combustion chamber draft fluctuates at any time, and its environment is very abominable.
Described in the boiler three-dimensional dilatation joint sealing device in past such as the document " boiler setting specification " (publication is published by Wuhan Boiler Works), and some other improved structure.They belong to labyrinth type furnace wall sand seal structure, hot baffle expansion joint structure, and labyrinth type furnace wall flexible sealing structure, these structures are that the swelling stress problem owing to high temperature problem that does not solve furnace wall and hot baffle does not prove effective mostly.
The purpose of this utility model is the sealing device of a kind of new boiler three-dimensional dilatation joint of design, and the sealing device both can be eliminated furnace wall high temperature, can reduce the thermal expansion stress of hot baffle again, realizes lasting sealing reliably.
For reaching this purpose, this boiler three-dimensional dilatation joint sealing device is established bag wall heating surface, to reduce the temperature of furnace wall at dilatation joint place; In furnace wall, establish hot baffle and pass through, simultaneously its part that may contact high-temperature flue gas is cut into several sections to reduce the maximum of thermal expansion stress to stop flue gas; If expansion joint is with the expansion difference on compensation three-dimensional dilatation joint both sides and guarantee the unlikely destruction of expansion joint itself; Only shake connector for the labyrinth seam of protection furnace wall avoids mutually bump setting, reduce combustion chamber draft and change the furnace wall fluctuation that causes, to guarantee the lasting work reliably of whole sealing device.
Based on above-mentioned design.This boiler three-dimensional dilatation joint sealing device comprises membrane type bag wall superheater, hot baffle, expansion joint and the part that only shakes.Membrane type bag wall superheater is respectively established a slice at light boiler setting place, the both sides in the horizontal passageway of boiler, the upper suspension of this superheater is on furnace wall cooling and the horizontal passageway of boiler light boiler setting, the bottom links to each other with water-cooling wall and can be free to slide by sliding part, hot baffle is embedded in and blocks the three-dimensional dilatation joint in the furnace wall, the expansion joint space is the U type, the backplate of it and light boiler setting links to each other and links to each other with hot baffle and fin panel casing by connector respectively, the part that only shakes is the slip damping position-limit mechanism of a connecting rod transmission, its end links to each other with the burner hearth fin panel casing, and the other end links to each other with the backplate of light boiler setting outside, horizontal passageway.
Membrane type bag wall superheater surface is that low temperature superheater coiled pipe or the high temperature superheater coiled pipe that forms transplanted in equivalence design or equivalence.Also can directly draw, be connected with corresponding superheater collection case via the horizontal passageway of boiler both walls.
Hot baffle is divided into left and right sides two halves near both walls furnace wall dilatation joint, its contact high-temperature flue gas part cuts into several sections along height by 300-500mm, and adds cover plate otch is blocked.
The connector that only shakes is the slip damping position-limit mechanism of a connecting rod transmission, and it couples together the outer casing in burner hearth fin panel casing tube and horizontal passageway.
The expansion compensation ability of expansion joint is the synthetic maximum swelling shift value of the three-dimensional of furnace outlet fenestrated membrane formula water-cooling wall.
This boiler three-dimensional dilatation joint sealing device both had been applicable to the boiler that design is new, also was applicable to the transformation of old boiler, and it is rational in infrastructure, and construction and easy to maintenance can solve furnace wall high temperature problem and hot baffle swelling stress problem, can reach lasting reliable sealing effect.
This boiler three-dimensional dilatation joint sealing device further specifies by following accompanying drawing
Fig. 1 is the utility model boiler three-dimensional dilatation joint sealing device sketch
Fig. 2 is the C-C cutaway view of Fig. 1
Fig. 3 is composition and the layout drawing of sliding part B among Fig. 1
Sign 1 is the labyrinth type furnace wall three-dimensional dilatation joint of filling aluminosilicate refractory fiber among Fig. 1, and it is present among the furnace wall of both sides and bottom, and the space is the U type.Burner hearth fin panel casing 2 and tube 3 thereof are positioned at the left side of furnace wall dilatation joint, the right is the light boiler setting 4 in horizontal passageway, dilatation joint 1 bottom is welded in the hot baffle 11 that collects on the case 12 in the middle of the water-cooling wall and seals, the expansion joint 6 that the space is the U type welds with hot baffle 11 mutually by the backplate 9 of connector 10 and light boiler setting 4 respectively, membrane type bag wall superheater 5 is close on the horizontal passageway light boiler setting 4 of boiler both sides, its left side links to each other with burner hearth fin panel casing 2, the A place welds in the drawings, the bottom links to each other by some sliding part B, can be free to slide.Membrane type bag wall superheater 5 passes its weight to light boiler setting 4 by a hanging piece 8, and 7 is only to shake the center line of part among the figure.The MEDIA FLOW that arrow is depicted as membrane type bag wall superheater 5 among the figure to, membrane type bag wall superheater 5 is that low temperature superheater or high temperature superheater equivalence are provided with or equivalent dislocation one-tenth, also can directly draw with corresponding collection case via both sides light boiler setting 4 to be connected and the equivalence setting.
Furnace wall dilatation joint 1 is hidden effectively by membrane type bag wall superheater 5 as seen from Figure 2.The hot baffle 11 that is divided into left and right sides two halves, its left side is half of blocks furnace wall dilatation joint 1, in order to reduce thermal expansion stress it is cut into several sections and with rice served with meat and vegetables on top otch is blocked along height by 300-500mm, left side hot baffle links to each other with fin panel casing 2 and expansion joint 6 by connector 10, and the right hot baffle 11 links to each other with expansion joint 6 by backplate 5.Form by otic placode 13, connecting rod 14, fixture 15 and directive slide track 16 at the part 7 that only shakes described in Fig. 1, fixture 15 is fixed on the backplate 9 of light boiler setting 4, otic placode 13 is attached on the fin panel casing 2, when burner hearth fin panel casing 2 and tube 3 are subjected to the suction wave movable property to give birth among the figure fluctuation of the direction shown in the arrow, to make slide rail 16 produce limited slippage by the direction shown in the corresponding arrow, a hanging piece 8 be embedded in the light boiler setting 4.The upper end of expansion joint 6 and the welding of the corresponding site of boiler are shut.
Sliding part B shown in Figure 3 by U type clamp 17, angle steel 18 and fin keel 19 form, clamp 17 only welds mutually with the fin keel 19 of fin panel casing 2 one sides, angle steel 18 only welds mutually with the fin keel 19 of membrane type bag wall superheater 5 one sides, angle steel 18 is in the control lower slider of clamp 17.
Claims (6)
1, a kind of boiler three-dimensional dilatation joint sealing device, it is characterized in that it comprises membrane type bag wall superheater (5), hot baffle (11), expansion joint (6), end octopus spare (7), membrane type bag wall superheater locates respectively to establish a slice at the both sides in the horizontal passageway of boiler light boiler settings (4), this superheater (5) upper suspension is on furnace wall cooling (2) and the horizontal passageway of boiler light boiler setting (4), the bottom links to each other with water-cooling wall (2) by sliding part (B), can be free to slide, hot baffle (11) is embedded in and blocks three-dimensional dilatation joint (1) in the furnace wall, expansion joint (6) space is the U type, the backplate (9) of it and light boiler setting (4) links to each other, and link to each other with hot baffle (11) and fin panel casing (2) by connector (10) respectively, the part (7) that only shakes is by connecting rod (14), directive slide track ∞, the slip damping position-limit mechanism of the connecting rod transmission that fixture (15) is formed, its end links to each other with burner hearth fin panel casing (2), and the other end links to each other with the outside backplate (9) of horizontal passageway light boiler setting (4).
2, sealing device as claimed in claim 1 is characterized in that two low temperature superheater coiled pipes or two high temperature superheater coiled pipes that membrane type bag wall superheater (5) is provided with for equivalence.
3, sealing device as claimed in claim 1, it is characterized in that membrane type bag wall superheater (5) for two cryogenic overheating coiled pipes of equivalent dislocation or two high temperature superheater coiled pipes,
4, as claim 2,3 described sealing devices, it is characterized in that membrane type bag wall superheater (5) directly draws via the both sides light boiler setting, be connected with corresponding superheater collection case.
5, sealing device as claimed in claim 1 is characterized in that hot baffle (11) is divided into left and right sides two halves, and its contact high-temperature flue gas part cuts into several sections along length by 300-500mm, and with steel plate otch is hidden
6, sealing device as claimed in claim 1, the expansion compensation ability that it is characterized in that expansion joint (6) are the synthetic maximum swelling shift value of the three-dimensional of burner hearth film-type water-cooling wall outlet window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235821 CN2331861Y (en) | 1998-05-26 | 1998-05-26 | Three-way sealing device for dilatation joint of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235821 CN2331861Y (en) | 1998-05-26 | 1998-05-26 | Three-way sealing device for dilatation joint of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2331861Y true CN2331861Y (en) | 1999-08-04 |
Family
ID=33984015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98235821 Expired - Fee Related CN2331861Y (en) | 1998-05-26 | 1998-05-26 | Three-way sealing device for dilatation joint of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2331861Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078706A1 (en) * | 2009-01-12 | 2010-07-15 | 上海锅炉厂有限公司 | Combined type seal structure with an expansion joint |
| CN110030568A (en) * | 2019-03-28 | 2019-07-19 | 华电电力科学研究院有限公司 | A kind of aperture furnace wall and sealing device suitable for gas bypass system |
| CN112413608A (en) * | 2020-06-28 | 2021-02-26 | 无锡华光环保能源集团股份有限公司 | Flexible sealing structure between boiler and incinerator |
-
1998
- 1998-05-26 CN CN 98235821 patent/CN2331861Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078706A1 (en) * | 2009-01-12 | 2010-07-15 | 上海锅炉厂有限公司 | Combined type seal structure with an expansion joint |
| CN110030568A (en) * | 2019-03-28 | 2019-07-19 | 华电电力科学研究院有限公司 | A kind of aperture furnace wall and sealing device suitable for gas bypass system |
| CN110030568B (en) * | 2019-03-28 | 2024-01-23 | 华电电力科学研究院有限公司 | Perforated furnace wall and sealing device suitable for flue gas bypass system |
| CN112413608A (en) * | 2020-06-28 | 2021-02-26 | 无锡华光环保能源集团股份有限公司 | Flexible sealing structure between boiler and incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |