CN203549246U - High-temperature-resistant metal compensator for circulating fluidized bed boiler - Google Patents
High-temperature-resistant metal compensator for circulating fluidized bed boiler Download PDFInfo
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- CN203549246U CN203549246U CN201320612190.3U CN201320612190U CN203549246U CN 203549246 U CN203549246 U CN 203549246U CN 201320612190 U CN201320612190 U CN 201320612190U CN 203549246 U CN203549246 U CN 203549246U
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Abstract
The utility model discloses a high-temperature-resistant metal compensator for a circulating fluidized bed boiler. The high-temperature-resistant metal compensator is formed by connecting two groups of bellows compensators through a middle adapter tube, wherein each group of bellows compensators comprises an inner adapter tube, an outer adapter tube, a bellows, an annular plate, a diversion tube, a loop III, a loop I and a loop II; an inner layer cavity and an outer layer cavity are formed in a cavity in each bellows; an outer cavity formed by each loop I, each outer adapter tube and each bellows is filled with aluminum silicate fiber cotton; an inner cavity formed by each diversion tube, each loop III, each outer adapter tube, each inner adapter tube, a ring flange and each loop I is filled with a fiber felt. Dual heat insulation is realized, and each inner cavity has a labyrinth structure, so that the heat insulating effect can be enhanced remarkably; meanwhile, high-temperature media are effectively prevented from entering nodes, so that the high temperature resistance of the compensator is enhanced remarkably, and the service life of the compensator is prolonged; a further improvement is that an assembly gap between each loop III and each diversion tube is filled with a composite heat insulating layer. The high-temperature-resistant metal compensator has the advantages of good heat insulating effect, resistant to high temperature and long service life.
Description
Technical field
The utility model relates to a kind of pipe safety device, and specifically, the utility model relates to a kind of circulating fluidized bed boiler metal compensator.
Background technique
In the pipeline configuration of circulating fluidized bed boiler, can adopt at present the displacement producing in the alignment error of metal compensator bucking-out system and running.The medium passing through in metal compensator from the pipeline configuration of circulating fluidized bed boiler is high-temperature flue gas, therefore, require metal compensator to there is good resistance to high temperature and sealing requirements higher., although this structure can play certain heat-blocking action, there is certain defect in fiberfill fibers felt in the cavity of prior art metal compensator between bellows and inner connecting tube: the one, and the heat insulation and preservation effect of fibrofelt is bad, affects the effect of heat insulation of compensator; The 2nd, fibrofelt easily comes off from the gap of honeycomb duct fit, causes the loose of thermal-protective material in cavity, and high temperature media easily pours in node, makes the resistance to high temperature of metal compensator poor, and the working life of compensator is shorter.
Summary of the invention
The utility model, for the deficiencies in the prior art, proposes one high temperature resistant, the high temperature resistant circulating fluidized bed boiler metal compensator of long service life.
The utility model is achieved through the following technical solutions technical goal.
High temperature resistant circulating fluidized bed boiler metal compensator, is formed by connecting by middle adapter by two groups of corrugated expansion joints, and every group of corrugated expansion joint comprises inner connecting tube, externally connected pipe, bellows, ring flat-plate, honeycomb duct and ring set III; The axial preset clearance of inner connecting tube at described middle adapter and two ends is arranged side by side; The inwall of described middle adapter, inner connecting tube is provided with resistant to elevated temperatures castable; On the outer wall of described middle adapter, inner connecting tube, be fixedly connected with respectively relative ring flange; Between described relative ring flange, by externally connected pipe, be connected with bellows, form collocation structure; On the inwall of described middle adapter, inner connecting tube, be fixedly connected with respectively relative ring flat-plate; On described relative ring flat-plate, be fixedly connected with respectively ring set III, honeycomb duct; Described ring set III gap is linked on honeycomb duct; Its improvements are: also comprise ring set I, ring set II; One end outer wall of described ring set I is fixedly connected with on the inwall of externally connected pipe at one end, and the other end Spielpassung stretches in the other end externally connected pipe; In the cavity forming at ring set I, externally connected pipe and bellows, fill aluminosilicate fiber cotton; In honeycomb duct, ring set III, externally connected pipe, inner connecting tube, ring flange, ring set I, be provided with ring set II, form mazy type cavity, fiberfill fibers felt in cavity.
In said structure, filled composite insulating in the gap that described ring set III, honeycomb duct close.
In said structure, described composite, insulating layer is composited by high temperature resistant stainless steel silk screen parcel ceramic fiber blanket.
The utility model compared with prior art, has following good effect:
1. be provided with inside and outside two-layer cavity, in the external cavity that ring set I, externally connected pipe and bellows form, fill aluminosilicate fiber cotton, fiberfill fibers felt in the inner cavity that honeycomb duct, ring set III, externally connected pipe, inner connecting tube, ring flange, ring set I form, by dual heat insulation, add the maze-type structure of inner cavity, can significantly improve effect of heat insulation, also effectively deaden high temperature media and pour in node, significantly improve resistance to high temperature and the working life of compensator simultaneously.
2. filled composite insulating in the gap that ring set III, honeycomb duct close, can deaden high temperature media and pour in node, further improves resistance to high temperature of the present utility model and working life.
3. composite, insulating layer is composited by high temperature resistant stainless steel silk screen parcel ceramic fiber blanket, can play better deadening high temperature media and pour the effect in node.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
High temperature resistant circulating fluidized bed boiler metal compensator shown in the drawings, by two groups of corrugated expansion joints, by middle adapter 16, be formed by connecting, every group of corrugated expansion joint comprises inner connecting tube 1, externally connected pipe 5, bellows 11, ring flat-plate 7, honeycomb duct 8, ring set III 13, ring set I 6, ring set II 9; Middle adapter 16 is arranged side by side with the axial preset clearance of inner connecting tube 1 at two ends; The inwall of middle adapter 16, inner connecting tube 1 is provided with resistant to elevated temperatures castable; On the outer wall of middle adapter 16, inner connecting tube 1, be fixedly connected with respectively relative ring flange 3; Between relative ring flange 3, by externally connected pipe 5, be connected with bellows 11, form collocation structure; On the inwall of middle adapter 16, inner connecting tube 1, be fixedly connected with respectively relative ring flat-plate 7; On relative ring flat-plate 7, be fixedly connected with respectively ring set III 13, honeycomb duct 8; Ring set III 13 gaps are linked on honeycomb duct 8; One end outer wall of ring set I 6 is fixedly connected with on the inwall of externally connected pipe 5 at one end, and the other end Spielpassung stretches in the other end externally connected pipe 5; In the cavity forming at ring set I 6, externally connected pipe 5 and bellows 11, fill aluminosilicate fiber cotton 10; In honeycomb duct 8, ring set III 13, externally connected pipe 5, inner connecting tube 1, ring flange 3, ring set I 6, be provided with ring set II 9, form mazy type cavity, fiberfill fibers felt 14 in cavity.
Filled composite insulating 15 in the gap of ring set III 13, honeycomb duct 8 fits, in the present embodiment, composite, insulating layer 15 is composited by high temperature resistant stainless steel silk screen parcel ceramic fiber blanket.
Claims (3)
1. a high temperature resistant circulating fluidized bed boiler metal compensator, by two groups of corrugated expansion joints, by middle adapter (16), be formed by connecting, every group of corrugated expansion joint comprises inner connecting tube (1), externally connected pipe (5), bellows (11), ring flat-plate (7), honeycomb duct (8) and ring set III (13); Described middle adapter (16) is arranged side by side with the axial preset clearance of inner connecting tube (1) at two ends; The inwall of described middle adapter (16), inner connecting tube (1) is provided with resistant to elevated temperatures castable; On the outer wall of described middle adapter (16), inner connecting tube (1), be fixedly connected with respectively relative ring flange (3); Between described relative ring flange (3), by externally connected pipe (5), be connected with bellows (11), form collocation structure; On the inwall of described middle adapter (16), inner connecting tube (1), be fixedly connected with respectively relative ring flat-plate (7); On described relative ring flat-plate (7), be fixedly connected with respectively ring set III (13), honeycomb duct (8); Described ring set III (13) gap is linked on honeycomb duct (8); It is characterized in that: also comprise ring set I (6), ring set II (9); One end outer wall of described ring set I (6) is fixedly connected with on the inwall of externally connected pipe (5) at one end, and the other end Spielpassung stretches in the other end externally connected pipe (5); In the cavity forming at ring set I (6), externally connected pipe (5) and bellows (11), fill aluminosilicate fiber cotton (10); In honeycomb duct (8), ring set III (13), externally connected pipe (5), inner connecting tube (1), ring flange (3), ring set I (6), be provided with ring set II (9), form mazy type cavity, fiberfill fibers felt (14) in cavity.
2. high temperature resistant circulating fluidized bed boiler metal compensator according to claim 1, is characterized in that: filled composite insulating (15) in the gap of described ring set III (13), honeycomb duct (8) fit.
3. high temperature resistant circulating fluidized bed boiler metal compensator according to claim 2, is characterized in that: described composite, insulating layer (15) is composited by high temperature resistant stainless steel silk screen parcel ceramic fiber blanket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612190.3U CN203549246U (en) | 2013-10-07 | 2013-10-07 | High-temperature-resistant metal compensator for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320612190.3U CN203549246U (en) | 2013-10-07 | 2013-10-07 | High-temperature-resistant metal compensator for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203549246U true CN203549246U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320612190.3U Expired - Fee Related CN203549246U (en) | 2013-10-07 | 2013-10-07 | High-temperature-resistant metal compensator for circulating fluidized bed boiler |
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| CN (1) | CN203549246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485463A (en) * | 2015-12-18 | 2016-04-13 | 贵州天福化工有限责任公司 | Air deflector structure for high-temperature expansion compensator |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
-
2013
- 2013-10-07 CN CN201320612190.3U patent/CN203549246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485463A (en) * | 2015-12-18 | 2016-04-13 | 贵州天福化工有限责任公司 | Air deflector structure for high-temperature expansion compensator |
| CN113864562A (en) * | 2021-11-16 | 2021-12-31 | 北京美联桥科技集团有限公司 | Novel EGR bellows that has composite bed blast pipe structure suitable for high temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20201007 |
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| CF01 | Termination of patent right due to non-payment of annual fee |