CN204404205U - air preheater expansion joint - Google Patents
air preheater expansion joint Download PDFInfo
- Publication number
- CN204404205U CN204404205U CN201520055998.5U CN201520055998U CN204404205U CN 204404205 U CN204404205 U CN 204404205U CN 201520055998 U CN201520055998 U CN 201520055998U CN 204404205 U CN204404205 U CN 204404205U
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- CN
- China
- Prior art keywords
- installation portion
- air preheater
- rigidity installation
- sealing gasket
- lower rigidity
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Abstract
The utility model discloses a kind of air preheater expansion joint, comprise upper and lower rigidity installation portion and in upper and lower rigidity, the elastic joint part between version is installed, described upper rigidity installation portion is connected with the flue in Power Plant roof portion, described lower rigidity installation portion is connected with the casing of air preheater, it is characterized in that: described elastic joint part comprises the cambered outwards arc sections of upper and lower flat part and centre, and described upper and lower flat part is connected with upper and lower rigidity installation portion respectively by bolt.By this expansion joint, make to realize between air preheater with flue being connected around property, the elastic deformation that can compensate expands with heat and contract with cold brings.
Description
Technical field
The utility model relates to a kind of air preheater expansion joint.
Background technology
Thermal power plant utilizes the fuel heat energy that such as coal combustion produces that water is heated into water vapour, and the pressure-driven steam turbine of water vapour does work thus produces electric energy.In thermal power generation process, the cigarette temperature of the flue gas of fuel combustion release is very high, especially when unit in summer heavy-duty service, cigarette temperature can be too high, in order to the heat of flue gas is utilized, usually flue gas is used for carrying out preheating to air, concrete operations pass into air in the ribbed pipe of air preheater, the flue gas of high temperature enters air preheater through the flue of power plant, and pass through air preheater from the ribbed pipe outside of air preheater, make the atmosphere temperature rising preheating in ribbed pipe, the air after preheating utilizes again.Problems existing is, the casing of air preheater and flue are rigidly connected, the heat exchange being subject to flue gas due to air preheater can produce expands with heat and contract with cold, and causes the junction of the flue of air preheater and flue gas to occur stretching or crimp, fission etc., affects service life.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide a kind of air preheater expansion joint, and air preheater is connected with flue spaced winding, compensates the elastic deformation brought of expanding with heat and contract with cold.
Air preheater expansion joint of the present utility model, comprise upper and lower rigidity installation portion and in upper and lower rigidity, the elastic joint part between version is installed, described upper rigidity installation portion is connected with the flue in Power Plant roof portion, described lower rigidity installation portion is connected with the casing of air preheater, it is characterized in that: described elastic joint part comprises the cambered outwards arc sections of upper and lower flat part and centre, and described upper and lower flat part is connected with upper and lower rigidity installation portion respectively by bolt.
Further, also comprise sealing gasket and the support portion for supporting sealing gasket, described sealing gasket is positioned at inside elastic joint part, and its upper and lower two ends contact with the edge up and down of arc sections respectively.
Further, described support portion comprises collateral fagging and bottom support plate; Described collateral fagging is positioned at the opposite side relative with elastic joint part to support the side of sealing gasket, and its top is connected with upper rigidity installation portion; Described bottom support plate is arranged on lower rigidity installation portion to support the bottom surface of sealing gasket.
Further, described upper and lower rigidity installation portion is angle steel.
The beneficial effects of the utility model: air preheater expansion joint of the present utility model, comprise upper and lower rigidity installation portion and in upper and lower rigidity, the elastic joint part between version is installed, described upper rigidity installation portion is connected with the flue in Power Plant roof portion, described lower rigidity installation portion is connected with the casing of air preheater, it is characterized in that: described elastic joint part comprises the cambered outwards arc sections of upper and lower flat part and centre, and described upper and lower flat part is connected with upper and lower rigidity installation portion respectively by bolt.By this expansion joint, make to realize between air preheater with flue being connected around property, the elastic deformation that can compensate expands with heat and contract with cold brings.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below with reference to accompanying drawing, the utility model is described in detail, as shown in the figure: the air preheater expansion joint of the present embodiment, for other occasions such as thermal power plants, comprise, lower rigidity installation portion 1, 2 and be positioned at, lower rigidity installation portion 1, elastic joint part 3 between 2, described upper rigidity installation portion 1 is connected with the flue in Power Plant roof portion, described lower rigidity installation portion 2 is connected with the casing of air preheater, it is characterized in that: described elastic joint part 3 comprises, lower flat part 31, 32 and the cambered outwards arc sections 33 in centre, on described, lower flat part 31, 32 respectively by bolt and upper, lower rigidity installation portion 1, 2 connect.Air preheater and flue are carried out Flexible spacecraft by elastic joint part 3, when air preheater expands with heat and contract with cold generation distortion, elastic joint part 3 can the change in displacement of make-up air preheater or flue, and elastic joint part 3 has arc sections 33, and the displacement making it possible to compensate is larger.
As the further improvement of technique scheme, also comprise sealing gasket 4 and the support portion 5 for supporting sealing gasket 4, described sealing gasket 4 is positioned at inside elastic joint part 3, and described sealing gasket 4 contacts with the edge up and down of arc sections 33 respectively near the two ends up and down of the side 41 of arc sections 33.Sealing gasket 4, for sealing fume, avoids flue gas to leak out from expansion joint, and no matter when arc sections 33 stretches or compresses, sealing gasket 4 can keep in touch with it all the time, and flue gas cannot leak out all the time from expansion joint.
As the further improvement of technique scheme, described support portion 5 comprises collateral fagging 51 and bottom support plate 52; Described collateral fagging 51 is positioned at sealing gasket 4 opposite side relative with elastic joint part 42 to support sealing gasket 4, and its top is connected with upper rigidity installation portion 1; Described bottom support plate 52 is arranged on lower rigidity installation portion 2 to support the bottom surface 43 of sealing gasket 4.
As the further improvement of technique scheme, described upper and lower rigidity installation portion 1,2 is angle steel.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. an air preheater expansion joint, comprise, lower rigidity installation portion (1, 2) and be positioned at, lower rigidity installation portion (1, 2) elastic joint part (3) between, described upper rigidity installation portion (1) is connected with the flue in Power Plant roof portion, described lower rigidity installation portion (2) is connected with the casing of air preheater, it is characterized in that: described elastic joint part (3) comprises, lower flat part (31, 32) and the cambered outwards arc sections in centre (33), on described, lower flat part (31, 32) respectively by bolt and upper, lower rigidity installation portion (1, 2) connect.
2. air preheater expansion joint according to claim 1, it is characterized in that: also comprise sealing gasket (4) and the support portion (5) for supporting sealing gasket (4), described sealing gasket (4) is positioned at elastic joint part (3) inner side, and described sealing gasket (4) contacts with the edge up and down of arc sections (33) respectively near the two ends up and down of the side (41) of arc sections (33).
3. air preheater expansion joint according to claim 2, is characterized in that: described support portion (5) comprise collateral fagging (51) and bottom support plate (52); Described collateral fagging (51) is positioned at sealing gasket (4) opposite side (42) relative with elastic joint part to support sealing gasket (4), and its top is connected with upper rigidity installation portion (1); Described bottom support plate (52) is arranged on lower rigidity installation portion (2) to support the bottom surface (43) of sealing gasket (4).
4. air preheater expansion joint according to claim 3, is characterized in that: described upper and lower rigidity installation portion (1,2) is angle steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055998.5U CN204404205U (en) | 2015-01-27 | 2015-01-27 | air preheater expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520055998.5U CN204404205U (en) | 2015-01-27 | 2015-01-27 | air preheater expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404205U true CN204404205U (en) | 2015-06-17 |
Family
ID=53428057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520055998.5U Expired - Fee Related CN204404205U (en) | 2015-01-27 | 2015-01-27 | air preheater expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204404205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715313A (en) * | 2019-10-24 | 2020-01-21 | 哈尔滨锅炉厂有限责任公司 | Novel flue sealing structure and sealing method |
-
2015
- 2015-01-27 CN CN201520055998.5U patent/CN204404205U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715313A (en) * | 2019-10-24 | 2020-01-21 | 哈尔滨锅炉厂有限责任公司 | Novel flue sealing structure and sealing method |
| CN110715313B (en) * | 2019-10-24 | 2021-10-01 | 哈尔滨锅炉厂有限责任公司 | Smoke air duct sealing structure and sealing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201014 Address after: 400033, Chongqing District, Shapingba Town, wellhead village, tile bamboo Fort Society Patentee after: Chongqing Guangya heat exchange equipment Co., Ltd Address before: Feng Qi Zhen Caijiaying road 400707 Chongqing city Beibei District No. 13 Patentee before: CHONGQING SHANGSHUN HEAT TRANSFER EQUIPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20210127 |