CN203744289U - Flexible sealing device special for denitration unit air preheater - Google Patents
Flexible sealing device special for denitration unit air preheater Download PDFInfo
- Publication number
- CN203744289U CN203744289U CN201420084713.6U CN201420084713U CN203744289U CN 203744289 U CN203744289 U CN 203744289U CN 201420084713 U CN201420084713 U CN 201420084713U CN 203744289 U CN203744289 U CN 203744289U
- Authority
- CN
- China
- Prior art keywords
- sealing
- pedestal
- sealing device
- base body
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 43
- 238000005192 partition Methods 0.000 claims abstract description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 33
- 238000007747 plating Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 238000005096 rolling process Methods 0.000 abstract description 4
- 238000005495 investment casting Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 101100004287 Caenorhabditis elegans best-6 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Air Supply (AREA)
Abstract
The utility model relates to a flexible sealing device special for a denitration unit air preheater. A sealing base body is composed of a base body fixing plate and a base body side plate. A movable baffle is embedded in the sealing base body. The lower end of the movable baffle is fixedly connected with one end of a high temperature spring. The other end of the high temperature spring is fixedly connected with a lower base plate of the sealing base body. The end of the movable baffle is provided with a movable plate end face roller. The upper portion of the base body side plate protrudes out to be provided with an elastic box body upper rolling wheel. The base body fixing plate is fixed to a storehouse partition plate through a fixing screw. According to the sealing device, elastic rolling contact between a sealing plate and a sector plate can be achieved, friction is greatly reduced, the air leakage rate of the whole sealing unit in an overhaul period can be reduced to the minimum extent, the aims of improving benefits, saving energy and reducing emission are achieved, in addition, the sealing body is made of precision casting alloy, the flexible sealing device has good high temperature resistance and corrosion resistance, and the service life of the sealing device is effectively prolonged.
Description
Technical field
The utility model relates to a kind of sealing device, especially denitration unit air preheater Special flexible sealing device.
Background technology
At present, air preheater is a kind of heat-exchange apparatus for large-sized boiler, and its sealing property directly affects boiler efficiency.The air leak rate of air curtain of air preheater is the important indicator that affects boiler efficiency, and air leak rate of air preheater is lower, and boiler efficiency is higher.Air preheater unit air leak rate of air curtain is generally all more than 8%, and a lot of a few Nian Houqi air leak rate of air curtain of unit operation all, more than 10%, generally also can only reach best 6% effect, and life of product is also shorter after flexible contact type seal reconstruction.Especially the improved unit cold end corrosion of denitration strengthens, a lot of products low temperature dewing corrosion of unable to bearing, and it is shorter that life of product becomes.
Utility model content
In order to solve the large problem of existing air preheater unit air leak rate of air curtain, the utility model provides a kind of denitration unit air preheater Special flexible sealing device, sealing device can be realized elastic rolling between sealing plate and fanning strip and contact, greatly reduce friction, seal adopts the hot investment casting alloy of corrosion-and high-temp-resistant, thickness is at 4-6mm, after casting, carry out again corrosion-resistant plating and spraying, spring adopts imported from America high temperature spring, roller and roller bearing all adopt corrosion-resistant, antifriction alloy, can make whole sealing unit air leak rate of air curtain within an overhaul life be down to lower, reach the object of high benefit energy-saving and emission-reduction.
The utility model solves the technical scheme that its technical problem adopts: sealing device comprises scroll wheel, spring, pedestal side plate, hold-down screw, screw hole and pedestal fixed head on portable plate end face roller, sideboard, elasticity box body, the sealing pedestal of described pedestal fixed head and pedestal side plate composition U shape, in L shaped sideboard embedding sealing pedestal, the lower end of sideboard is being fixedly connected with one end of high temperature spring, the other end of high temperature spring is being fixedly connected with the lower shoe that seals pedestal, to realize sideboard elastic lifting in sealing pedestal, the end of sideboard is provided with portable plate end face roller, the top of pedestal side plate is protruded and is provided with scroll wheel on elasticity box body, on elasticity box body, scroll wheel is used for limiting the upper position-arresting of sideboard elastic lifting, pedestal fixed head is fixed on partition panel by hold-down screw.
In use, sealing device radially or is axially arranged on the upper and lower working face of rotary regenerative air preheater rotor and the circumference cylindrical shell of rotor, sealing device moves in turn and contacts with fanning strip, the space of leaking out is narrow and small, in the time that rotor upper surface continues to be subject to the high-temperature flue gas heating of hot blast side, there is mushroom deformation, make between working face and fanning strip, to produce on rotor the trigonum of leaking out, now, roll successively and filled this space of leaking out through fanning strip thereby promote sideboard under the elastic force effect of spring, greatly reduce the air leak rate of air curtain of air preheater.
The material of described sealing pedestal and sideboard is high temperature resistant, corrosion resistant steel alloy, and anticorrosion plating and spraying are carried out in surface.
The beneficial effects of the utility model are, sealing device can be realized elastic rolling between sealing plate and fanning strip and contact, greatly reduce friction, can make whole sealing unit air leak rate of air curtain within an overhaul life be down to lower, reach the object of high benefit energy-saving and emission-reduction, seal is made up of hot investment casting alloy in addition, has very strong high temperature resistant, corrosion resistance, the service life that has effectively strengthened sealing device.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is side structure principle schematic of the present utility model.
Fig. 2 is Facad structure principle schematic of the present utility model.
Fig. 3 is fanning strip and rotor drum relative position schematic diagram.
In figure, 1. portable plate end face roller, 2. sideboard, 3. scroll wheel on elasticity box body, 4. spring, 5. pedestal side plate, 6. hold-down screw, 7. screw hole, 8. partition panel, 9. pedestal fixed head, 10. fanning strip, 11. rotors.
Detailed description of the invention
In the drawings, sealing device comprises scroll wheel 3, spring 4, pedestal side plate 5, hold-down screw 6, screw hole 7 and pedestal fixed head 9 on portable plate end face roller 1, sideboard 2, elasticity box body, described pedestal fixed head 9 and pedestal side plate 5 form the sealing pedestal of U shape, in L shaped sideboard 2 embedding sealing pedestals, the lower end of sideboard 2 is being fixedly connected with one end of high temperature spring 4, the other end of high temperature spring 4 is being fixedly connected with the lower shoe that seals pedestal, to realize sideboard 2 elastic lifting in sealing pedestal, the end of sideboard 2 is provided with portable plate end face roller 1, the top of pedestal side plate 5 is protruded and is provided with scroll wheel 3 on elasticity box body, on elasticity box body, scroll wheel 3 is used for limiting the upper position-arresting of sideboard 2 elastic liftings, pedestal fixed head 9 is fixed on partition panel 8 by hold-down screw 6.
In use, sealing device radially or is axially arranged on to the upper of rotary regenerative air preheater rotor 11, on the circumference cylindrical shell of lower working face and rotor 11, sealing device moves in turn and contacts with fanning strip 10, the space of leaking out is narrow and small, in the time that rotor 11 upper surfaces continue to be subject to the high-temperature flue gas heating of hot blast side, there is mushroom deformation, make between working face and fanning strip 10, to produce on rotor 11 trigonum of leaking out, now, thereby under the elastic force effect of spring 4, promoting sideboard 2 rolls successively and has filled this space of leaking out through fanning strip 10, greatly reduce the air leak rate of air curtain of air preheater.
The material of described sealing pedestal and sideboard 2 is high temperature resistant, corrosion resistant steel alloy, and anticorrosion plating and spraying are carried out in surface.
Claims (2)
1. denitration unit air preheater Special flexible sealing device, sealing device comprises portable plate end face roller (1), sideboard (2), scroll wheel on elasticity box body (3), spring (4), pedestal side plate (5), hold-down screw (6), screw hole (7) and pedestal fixed head (9), it is characterized in that, the sealing pedestal of described pedestal fixed head (9) and pedestal side plate (5) composition U shape, in L shaped sideboard (2) embedding sealing pedestal, the lower end of sideboard (2) is being fixedly connected with one end of high temperature spring (4), the other end of high temperature spring (4) is being fixedly connected with the lower shoe that seals pedestal, the end of sideboard (2) is provided with portable plate end face roller (1), the top of pedestal side plate (5) is protruded and is provided with scroll wheel on elasticity box body (3), scroll wheel on elasticity box body (3) is used for limiting the upper position-arresting of sideboard (2) elastic lifting, pedestal fixed head (9) is fixed on partition panel (8) by hold-down screw (6).
2. denitration unit air preheater Special flexible sealing device according to claim 1, is characterized in that, the material of described sealing pedestal and sideboard (2) is high temperature resistant, corrosion resistant steel alloy, and anticorrosion plating and spraying are carried out in surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084713.6U CN203744289U (en) | 2014-02-21 | 2014-02-21 | Flexible sealing device special for denitration unit air preheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420084713.6U CN203744289U (en) | 2014-02-21 | 2014-02-21 | Flexible sealing device special for denitration unit air preheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203744289U true CN203744289U (en) | 2014-07-30 |
Family
ID=51344083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420084713.6U Expired - Fee Related CN203744289U (en) | 2014-02-21 | 2014-02-21 | Flexible sealing device special for denitration unit air preheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203744289U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439897A (en) * | 2015-10-13 | 2017-02-22 | 江苏鑫信润科技有限公司 | Air preheater automatic tracking reactive compensation three-way self-sealing device |
| CN109695891A (en) * | 2018-05-30 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | One kind dividing the rotary clarifier in storehouse and flue gas purification system |
| CN110219992A (en) * | 2019-07-09 | 2019-09-10 | 大连保税区华鸿工业技术有限公司 | Prevent the sealing device of sealing face damage |
-
2014
- 2014-02-21 CN CN201420084713.6U patent/CN203744289U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439897A (en) * | 2015-10-13 | 2017-02-22 | 江苏鑫信润科技有限公司 | Air preheater automatic tracking reactive compensation three-way self-sealing device |
| CN109695891A (en) * | 2018-05-30 | 2019-04-30 | 中电华创(苏州)电力技术研究有限公司 | One kind dividing the rotary clarifier in storehouse and flue gas purification system |
| CN110219992A (en) * | 2019-07-09 | 2019-09-10 | 大连保税区华鸿工业技术有限公司 | Prevent the sealing device of sealing face damage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151126 Address after: 221000 room 315, people's livelihood building, Xuzhou, Jiangsu Patentee after: XUZHOU TOUPING SEALING SCIENCE AND TECHNOLOGY CO., LTD. Address before: 221000 room 315, people's livelihood building, Xuzhou, Jiangsu Patentee before: Zhang Jianhua |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221000 room 315, people's livelihood building, Xuzhou, Jiangsu Patentee after: Jiangsu Turbine Power Technology Co., Ltd. Address before: 221000 room 315, people's livelihood building, Xuzhou, Jiangsu Patentee before: XUZHOU TOUPING SEALING SCIENCE AND TECHNOLOGY 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: 20140730 Termination date: 20160221 |