CN201866399U - Shaft seal device for high-temperature hot air door - Google Patents
Shaft seal device for high-temperature hot air door Download PDFInfo
- Publication number
- CN201866399U CN201866399U CN2010201602797U CN201020160279U CN201866399U CN 201866399 U CN201866399 U CN 201866399U CN 2010201602797 U CN2010201602797 U CN 2010201602797U CN 201020160279 U CN201020160279 U CN 201020160279U CN 201866399 U CN201866399 U CN 201866399U
- Authority
- CN
- China
- Prior art keywords
- packing
- valve shaft
- sliding sleeve
- cavity
- flange
- 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
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a shaft seal device for high-temperature hot air door, comprising a valve shaft stretching out from the side wall of a hot air pipe. A sliding sleeve is sheathed on the valve shaft, one end of the sliding sleeve is fixed on the hot air pipe, and the other end of the sliding sleeve is connected with a packing flange; a packing is filled between the sliding sleeve and the valve shaft, one end of the packing leans against the external wall of the hot air pipe, and the other end of the packing leans against the packing flange; a bushing sheathed on the valve shaft is fixedly connected on the external end surface of the packing flange, a partition plate is arranged in the bushing, an inner cavity of the bushing is divided into a sealing cavity and a cold air cavity which are independent to each other by the partition plate, the sealing cavity is arranged at the outer side of the cold air cavity, a sealing ring is sheathed in the sealing cavity, and a cold air inlet is arranged at the position on the bushing corresponding to the cold air cavity. The shaft seal device has reasonable structure, is convenient and reliable to use and can effectively eliminate air/ash leakage to achieve the purposes of energy saving, environmental protection and civilized production.
Description
Technical field:
The utility model relates generally to shaft sealer, especially relates to a kind of high-temperature hot-air door-hinge seal apparatus.
Background technique:
During power plant produces, coal dust be high-temperature hot-air by line transportation to boiler burning, in whole hot blast pipe network, the auto-control valve of the One's name is legion that distributing.Because of valve contact hot blast, its rotatingshaft temperature is higher.The rotatingshaft of valve only can be used packing (high temperature) packing seal because of the temperature height at present.But in actual use,, add that axle has off-centre, problems such as hot blast, leakage coal ash often occur leaking owing to packing does not have elastic compensating.So, both waste heat energy, polluted environment again, also strengthened the cost of production of enterprise.
The model utility content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of high-temperature hot-air door-hinge seal apparatus to be provided.It can effectively eliminate Lou hot blast and leakage powder phenomenon, the advantage of have energy-conserving and environment-protective, enhancing productivity.
The utility model is achieved through the following technical solutions:
High-temperature hot-air door-hinge seal apparatus, include the valve shaft that stretches out from the warm-air pipe sidewall, be with sliding sleeve on the described valve shaft, sliding sleeve one end is fixed on the warm-air pipe, the sliding sleeve the other end is connected with packing flange, be filled with packing between described sliding sleeve and the valve shaft, packing one end is against the warm-air pipe outer wall, the other end is against on the packing flange, it is characterized in that: be fixedly connected with the sleeve pipe that is enclosed within on the valve shaft on the exterior edge face of described packing flange, be provided with dividing plate in the sleeve pipe, described dividing plate is divided into separate Seal cage and cold air cavity with cannula cavity, described Seal cage is positioned at the outside of cold air cavity, is with seal ring in the described Seal cage, and the position of corresponding cold air cavity has the cold wind import on the described sleeve pipe.
Described high-temperature hot-air door-hinge seal apparatus, it is characterized in that: the outer end of described sleeve pipe is fixedly connected with flange, and described seal ring is held between dividing plate and the flange.
The utility model is the outside of sealing original-pack sealing at axle, installs the sleeve pipe of a metal additional.Feed high pressure cold wind by cold air inlet in the cold air cavity of sleeve pipe, the pressure of described high pressure cold wind is slightly larger than the pressure of hot blast in the hot air duct, and so, the hot blast in the warm-air pipe will be difficult to spread to the external world from packing, and then has avoided leaking the problem of coal dust.And cold wind can play the effect to valve shaft cooling, makes elevated-temperature seal become conventional seals.Described seal ring is lip seal, and split type is adopted in lip seal, is bonded into integral body during installation, with flange it is compressed, and installs very convenient.
The utility model has the advantages that:
The utility model is rational in infrastructure, and is easy to use and reliable, can effectively eliminate and leak out, and leaks grey phenomenon, reaches energy-conserving and environment-protective, the purpose of carrying out production strictly in line with rules and regulations.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
High-temperature hot-air door-hinge seal apparatus, include the valve shaft 1 that stretches out from warm-air pipe 8 sidewalls, be with sliding sleeve 9 on the described valve shaft 1, sliding sleeve 9 one ends are fixed on the warm-air pipe 8, sliding sleeve 9 the other ends are connected with packing flange 6, be filled with packing 7 between described sliding sleeve 9 and the valve shaft 1, packing 7 one ends are against warm-air pipe 8 outer walls, the other end is against on the packing flange 6, be fixedly connected with the sleeve pipe 4 that is enclosed within on the valve shaft 1 on the exterior edge face of packing flange 6, be provided with dividing plate 10 in the sleeve pipe 4, described dividing plate 10 is divided into separate Seal cage and cold air cavity 11 with cannula cavity, described Seal cage is positioned at the outside of cold air cavity 11, is with seal ring 3 in the described Seal cage, and the position of corresponding cold air cavity 11 has cold wind import 5 on the described sleeve pipe 4.The outer end of described sleeve pipe 4 is fixedly connected with flange 2, and described seal ring 3 is held between dividing plate 10 and the flange 2.
Claims (2)
1. high-temperature hot-air door-hinge seal apparatus, include the valve shaft that stretches out from the warm-air pipe sidewall, be with sliding sleeve on the described valve shaft, sliding sleeve one end is fixed on the warm-air pipe, the sliding sleeve the other end is connected with packing flange, be filled with packing between described sliding sleeve and the valve shaft, packing one end is against the warm-air pipe outer wall, the other end is against on the packing flange, it is characterized in that: be fixedly connected with the sleeve pipe that is enclosed within on the valve shaft on the exterior edge face of described packing flange, be provided with dividing plate in the sleeve pipe, described dividing plate is divided into separate Seal cage and cold air cavity with cannula cavity, described Seal cage is positioned at the outside of cold air cavity, is with seal ring in the described Seal cage, and the position of corresponding cold air cavity has the cold wind import on the described sleeve pipe.
2. high-temperature hot-air door-hinge seal apparatus according to claim 1, it is characterized in that: the outer end of described sleeve pipe is fixedly connected with flange, and described seal ring is held between dividing plate and the flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201602797U CN201866399U (en) | 2010-04-15 | 2010-04-15 | Shaft seal device for high-temperature hot air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201602797U CN201866399U (en) | 2010-04-15 | 2010-04-15 | Shaft seal device for high-temperature hot air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866399U true CN201866399U (en) | 2011-06-15 |
Family
ID=44137554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201602797U Expired - Fee Related CN201866399U (en) | 2010-04-15 | 2010-04-15 | Shaft seal device for high-temperature hot air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866399U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016740A (en) * | 2012-12-11 | 2013-04-03 | 马鞍山市荣亿密封材料有限责任公司 | Shaft-end seal device of air preheater |
| CN105042081A (en) * | 2015-08-31 | 2015-11-11 | 神华集团有限责任公司 | Sealing device and installation structure for shaft penetrating air flue |
| CN105505417A (en) * | 2016-01-30 | 2016-04-20 | 农业部规划设计研究院 | Continuous type pyrolysis carbonization full-sealing technological method |
| CN105805323A (en) * | 2016-05-19 | 2016-07-27 | 山东电力建设第工程公司 | Ash leakage preventing shaft sealing device of secondary seal of baffle plate air door |
| CN108591121A (en) * | 2018-02-27 | 2018-09-28 | 金东纸业（江苏）股份有限公司 | Wind turbine baffle plate assembly and wind turbine |
-
2010
- 2010-04-15 CN CN2010201602797U patent/CN201866399U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016740A (en) * | 2012-12-11 | 2013-04-03 | 马鞍山市荣亿密封材料有限责任公司 | Shaft-end seal device of air preheater |
| CN103016740B (en) * | 2012-12-11 | 2015-03-25 | 马鞍山市荣亿密封材料有限责任公司 | Shaft-end seal device of air preheater |
| CN105042081A (en) * | 2015-08-31 | 2015-11-11 | 神华集团有限责任公司 | Sealing device and installation structure for shaft penetrating air flue |
| CN105505417A (en) * | 2016-01-30 | 2016-04-20 | 农业部规划设计研究院 | Continuous type pyrolysis carbonization full-sealing technological method |
| CN105805323A (en) * | 2016-05-19 | 2016-07-27 | 山东电力建设第工程公司 | Ash leakage preventing shaft sealing device of secondary seal of baffle plate air door |
| CN105805323B (en) * | 2016-05-19 | 2018-11-30 | 山东电力建设第一工程公司 | A kind of baffle ventilation door secondary seal leakproof ash gland seal device |
| CN108591121A (en) * | 2018-02-27 | 2018-09-28 | 金东纸业（江苏）股份有限公司 | Wind turbine baffle plate assembly and wind turbine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201866399U (en) | Shaft seal device for high-temperature hot air door | |
| CN201731508U (en) | Air sealing device for reducing air leakage of rotary type air preheater | |
| CN202901675U (en) | Maintenance-free external pressure directly-buried expansion joint | |
| CN201292865Y (en) | Low-pressure shaft seal sealing device for steam turbine | |
| CN103542219A (en) | Self-operated sealing sleeve compensator | |
| CN204756275U (en) | Flue gas pipeline thermal energy compensation arrangement | |
| CN202417617U (en) | Radial labyrinth gland of turbine | |
| CN201593908U (en) | Bellows sealing structure of revolving drum drier | |
| CN102878381A (en) | Maintenance-free external-pressing direct buried expansion joint | |
| CN202659530U (en) | Zero-leakage fan | |
| CN204592535U (en) | A kind of door-hinge sealing of damper is optimized structure | |
| CN208397543U (en) | A kind of rapid-maintenance pipeline leakage device | |
| CN203730954U (en) | Ball mill feeding seal device | |
| CN202521164U (en) | Energy-saving vacuum sealing device | |
| CN207131852U (en) | Coal pulverizer hot blast pitch spindle nose sealing structure | |
| CN206647664U (en) | Novel pressure mechanism of qi exports connecting tube | |
| CN202790961U (en) | Smoke leakage prevention device for boiler through-wall pipe | |
| CN202973844U (en) | Sealing device for fluorine hydride rotary furnace burner and furnace tail | |
| CN203131031U (en) | Sealing device for hot air channel baffle shaft | |
| CN204986184U (en) | Expansion joint | |
| CN203906227U (en) | Device for recycling air leaked from filler of compressor | |
| CN204175435U (en) | Loop type sealing configuration between a kind of pipeline and flange | |
| CN220366129U (en) | Corrosion-resistant heat-insulating pipeline | |
| CN204553320U (en) | A kind of modified model gland seal system | |
| CN205101050U (en) | Prevent steam turbine axle gland leak -off device |
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: 20110615 Termination date: 20160415 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |