CN102094845B - Shaft seal device of air compressor - Google Patents
Shaft seal device of air compressor Download PDFInfo
- Publication number
- CN102094845B CN102094845B CN201110053237.2A CN201110053237A CN102094845B CN 102094845 B CN102094845 B CN 102094845B CN 201110053237 A CN201110053237 A CN 201110053237A CN 102094845 B CN102094845 B CN 102094845B
- Authority
- CN
- China
- Prior art keywords
- oil
- disc
- seal
- seal device
- air compressor
- 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.)
- Active
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a shaft seal device of an air compressor. A rotary shaft is connected with a carbon ring type gas seal device and an oil slinger oil seal device, wherein the oil slinger oil seal device comprises two shaft shoulder oil slingers, an oil return passage and an oil seal shell; the oil return passage is arranged between the two oil slingers; the shaft diameters of the two oil slingers are greater than the shaft diameter of the oil return passage; the oil seal shell comprises a vortex cavity and an oil return hole; the vortex cavity of the oil seal shell surrounds an oil slinger; the oil return hole is arranged at the lower part of the oil seal shell; the oil return hole is communicated with the vortex cavity; an enclosure between the carbon ring type gas seal device and the oil slinger oil seal device is provided with a through hole which is communicated with the atmosphere; and the two sides of the inlet of the vortex cavity are of a barb structure and are distributed symmetrically, which is favorable for collecting the leaked oil on the oil slingers. According to the invention, the problems that the common gas seal has a large leakage rate, the common oil seal has a long axial distance, media are easy to be polluted due to the mixing of gas and oil when the common gland seal and the common oil seal are combined, and the shaft seal device of the air compressor is especially suitable for being matched with a high-speed gear type centrifugal air compressor for use.
Description
Technical field
The present invention relates to the sealing technique of air compressing arbor, refer to especially to have the gland seal device of the air compressor of carbon-ring type sealing gland and disc oil sealing.
Background technique
For air compressor, especially gear type centrifugal air compressor must adopt various forms of sealing glands to prevent or to limit the high-pressure air air that depollutes in along the oil leak of compressor rotating shaft end leakage in gear-box and in the gear-box to pressurized air.At present, both at home and abroad generally the sealing gland of air compressor is adopted carbon ring seal or labyrinth seal, along with high pressure, at a high speed, the development of high-efficient compressor; Conventional carbocyclic ring or the flow-induced vibration of labyrinth air seal cavity easily cause the self-excited vibration of machinery, affect the stable operation of unit, and the gas that leaks enters gear-box, cause that the gear-box internal pressure is too high, cause oil leak, the lubricant oil of leakage easily enters sealing gland, pollutes working medium; The conventional labyrinth oil seal number of teeth is more, causes axial distance excessive, and cost of production is high, and unit vibration increases, decrease in efficiency.
The 37th volume the 3rd interim publication " improvement of the milling train gearbox shaft seal structure " literary composition that " modern metallurgical " published in June, 2009, the disc sealing of mentioning only has disc one, belongs to the power type sealing, suit under high-speed condition, to work, weaken in low-speed conditions lower seal performance.
Summary of the invention
Goal of the invention: overcome the bad defective of conventional air compressor shaft gland, provide that a kind of working medium pollutes less, the equal gland seal device of good air compressor of oil sealing sealing gland.
Technological scheme: the gland seal device of air compressor of the present invention, be connected with carbon-ring type air seal set and disc oil-sealing arrangement in the rotating shaft, the periphery of gland seal device is casing.Described disc oil-sealing arrangement contains twice shaft shoulder type disc, a drainback passage, an oil seal housing; Twice disc and rotating shaft are an integral body, and drainback passage is between the twice disc, and the diameter of axle at twice disc place is all greater than the diameter of axle of drainback passage; Contain an eddy current cavity and a spill port on the oil seal housing, the eddy current cavity of oil seal housing surrounds disc one, and an end of oil seal housing has the oil return gap between this end and the rotating shaft in drainback passage, and the other end and the rotating shaft sealing of oil seal housing are good; Spill port is in the bottom of oil seal housing, and spill port is communicated with the eddy current cavity; Casing between carbon-ring type air seal set and the disc oil-sealing arrangement is provided with and connects open to atmosphere vent.
Described twice disc spacing can be 10mm～30mm, and the twice disc place diameter of axle can differ 5mm～20mm.
The entrance both sides of described eddy current cavity become barb type, and are symmetrical, are beneficial to collect the oil that leaks on the disc.
Described carbon-ring type air seal structure can contain twice carbon ring seal circle, three road broach and two carbon ring seal circle cross arrangement, and tightness is better.
When in the described rotating shaft thrust bearing being installed, the thrust bearing location is located as first disc position, and the lateral vertical that this road disc contacts with oil seal housing is in the axis of rotating shaft, and the another side radially becomes 10 °～25 ° with rotating shaft; The bi-side of second disc are symmetrically distributed, and become 20 °～35 ° between the bi-side.
Beneficial effect: the present invention has following characteristics:
1) the present invention adopts the sealing gland of twice carbon ring seal circle.The characteristics such as carbocyclic ring has good wearability, self lubricity, heat-resisting quantity, assemblage gap is little, good airproof performance.Adopt twice carbon ring seal circle, three road broach cross arrangement, high-pressure gas pressure decays near atmospheric pressure, and the gas of leakage is under the effect of oil sealing, and air-flow changes direction, discharges into the atmosphere fully by vent.
2) oil sealing of the present invention adopts twice disc formula structure, farthest reduced the axial float of lubricant oil, special eddy current cavity design, increased the kinetic energy dissipation degree, can prevent the secondary leakage of oil, drainback passage can make long-pending oil in time get back to gear-box by the spill port of bottom, guaranteed oily recycling, only have oil gas seldom to be discharged in the atmosphere through vent, really accomplish working medium pure, without greasy dirt.
3) sealing gland and oil sealing are provided with vent between the two, realize Oil-gas Separation, guarantee the pure minute-pressure state without greasy dirt and maintenance gear-box of Exhaust Gas.
4) the present invention's sealability when work and inoperative is all good, and the leakage rate that has solved conventional sealing gland appearance is large, and conventional oil sealing axial distance is large, and the problem of air-fuel mixture pollution medium easily occurs for conventional sealing gland and oil sealing combination.Especially being fit to high gear formula centrifugal air compressor supports the use.
Description of drawings
Accompanying drawing is a cross-sectional view of the present invention that is installed in the air compressor
1, impeller; 2, rotating shaft; 3, carbon ring seal circle; 4, broach; 5, vent; 6, oil seal housing; 7, the thrust bearing shaft shoulder; 8, thrust bearing; 9, second disc; 10, drainback passage; 11, first disc; 12, spill port; 13, barb; 14, eddy current cavity; 15, casing.
Embodiment
The invention will be further described below in conjunction with accompanying drawing:
Select or make following parts: rotating shaft 2, have twice shaft shoulder type disc in the rotating shaft 2, leave drainback passage 10 positions between the twice shaft shoulder type disc, have in addition the thrust bearing shaft shoulder 7 in the rotating shaft 2 one; Thrust bearing 8; The carbon-ring type air seal set of suitable types includes twice carbon ring seal circle 3, three road broach 4; The oil seal housing 6 that contains eddy current cavity 14 and spill port 12.
Described twice disc spacing 20mm, the twice disc place diameter of axle differs 10mm.The entrance both sides of described eddy current cavity 14 become barb 13 types, and are symmetrical.
Shown in accompanying drawing, each component are coupled together, rotating shaft 2 also connects impeller 1, and there is casing 15 periphery.Sealing gland is comprised of twice carbon ring seal circle 3 and three road broach 4; Oil sealing is comprised of oil seal housing 6, second disc 9, drainback passage 10, first disc 11, and oil seal housing 6 is comprised of eddy current cavity 14, spill port 12 etc.; Casing 15 between sealing gland and the oil sealing is provided with vent 5.The eddy current cavity 14 of oil seal housing 6 surrounds second disc 9, and an end of oil seal housing 6 has the oil return gap between this end and the rotating shaft in drainback passage 10, the other end of oil seal housing 6 and rotating shaft 2 good seals; Spill port 12 is in the bottom of oil seal housing 6, and spill port 12 is communicated with eddy current cavity 14; In the described rotating shaft 2 thrust bearing 8 is installed, thrust bearing 8 location are located as first disc 11 positions, and the lateral vertical that this road disc contacts with oil seal housing 6 is in the axis of rotating shaft 2, and the another side radially becomes 15 ° with rotating shaft 2; The bi-side of second disc 9 are symmetrically distributed, and become 30 ° between the bi-side.
During rotating shaft 2 work, behind the broach 4 that the pressurized gas that leak from impeller 1 pass through sealing gland successively and the carbon ring seal circle 3, the pressure of gas leakage is near external atmosphere pressure, and under the effect of oil sealing, air-flow changes direction, is discharged in the atmosphere by vent 5.. the lubricant oil major part of leaking from gear-box stops through two discs, sub-fraction enters eddy current cavity 14 under the centrifugal action of disc, behind the energy dissipating, in time get back to gear-box along drainback passage 10 by the spill port 12 of eddy current cavity 14 bottoms, only have oil and gas leakage seldom to go out, discharge by vent 5.Realize the shaft seal good seal, and Oil-gas Separation, guarantee the pure minute-pressure state without greasy dirt and maintenance gear-box of Exhaust Gas.
Claims (5)
1. the gland seal device of an air compressor, be connected with carbon-ring type air seal set and disc oil-sealing arrangement in the rotating shaft (2), the periphery of gland seal device is casing (15), it is characterized in that: described disc oil-sealing arrangement, contain twice shaft shoulder type disc, a drainback passage (10), an oil seal housing (6); Twice disc and rotating shaft (2) are an integral body, and drainback passage (10) is between the twice disc, and the diameter of axle at twice disc place is all greater than the diameter of axle of drainback passage (10); Contain an eddy current cavity (14) and a spill port (12) on the oil seal housing (6), the eddy current cavity (14) of oil seal housing (6) surrounds one disc, one end of oil seal housing (6) is in drainback passage (10), this end and rotating shaft have the oil return gap between (2), the other end of oil seal housing (6) and rotating shaft (2) good seal; Spill port (12) is in the bottom of oil seal housing (6), and spill port (12) is communicated with eddy current cavity (14); The open to atmosphere vent of casing (15) company of being provided with (5) between carbon-ring type air seal set and the disc oil-sealing arrangement.
2. the gland seal device of air compressor according to claim 1, it is characterized in that: described twice disc spacing 10mm ~ 30mm, the twice disc place diameter of axle differs 5mm ~ 20mm.
3. the gland seal device of air compressor according to claim 1 is characterized in that: the entrance both sides of described eddy current cavity (14) become barb (13) type, and are symmetrical.
4. the gland seal device of air compressor according to claim 1, it is characterized in that: described carbon-ring type air seal set contains twice carbon ring seal circle (3), three road broach (4), cross arrangement.
5. the gland seal device of air compressor according to claim 1 and 2, it is characterized in that: thrust bearing (8) is installed in the described rotating shaft (2), place, thrust bearing (8) location is as first disc (11) position, the lateral vertical that this road disc contacts with oil seal housing (6) is in the axis of rotating shaft (2), and the another side radially becomes 10 ° ~ 25 ° with rotating shaft (2); The bi-side of second disc (9) are symmetrically distributed, and become 20 ° ~ 35 ° between the bi-side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053237.2A CN102094845B (en) | 2011-03-07 | 2011-03-07 | Shaft seal device of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110053237.2A CN102094845B (en) | 2011-03-07 | 2011-03-07 | Shaft seal device of air compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094845A CN102094845A (en) | 2011-06-15 |
| CN102094845B true CN102094845B (en) | 2013-01-16 |
Family
ID=44128064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110053237.2A Active CN102094845B (en) | 2011-03-07 | 2011-03-07 | Shaft seal device of air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094845B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032347B (en) * | 2011-09-28 | 2015-08-19 | 珠海格力电器股份有限公司 | There is the centrifugal compressor of isolation structure |
| CN105114352B (en) * | 2012-04-02 | 2018-03-13 | 珠海格力电器股份有限公司 | A kind of oil return apparatus for direct-connection centrifugal compressor |
| CN103452897A (en) * | 2013-09-22 | 2013-12-18 | 无锡杰尔压缩机有限公司 | Modified air seal structure |
| CN103982661B (en) * | 2014-05-30 | 2016-01-27 | 无锡杰尔压缩机有限公司 | Gas, oily combination seal isolator |
| CN104074795B (en) * | 2014-07-11 | 2016-06-29 | 江苏杰尔科技股份有限公司 | A kind of high speed shaft seal structure |
| CN104747490B (en) * | 2015-02-16 | 2017-01-25 | 沈阳鼓风机集团自动控制系统工程有限公司 | Bearing-oil-sealed buffer gas pressure control method |
| CN106762789B (en) * | 2016-12-22 | 2023-01-20 | 中国船舶集团有限公司第七一一研究所 | Semicircular flange structure and marine diesel engine waste gas booster pump |
| CN107869570A (en) * | 2017-11-10 | 2018-04-03 | 南京高精齿轮集团有限公司 | Gear-box shaft end dynamic sealing device |
| CN108612588B (en) * | 2018-04-18 | 2024-03-22 | 常州环能涡轮动力股份有限公司 | Miniature aviation vortex shaft driving system |
| CN109404282B (en) * | 2018-12-19 | 2020-09-04 | 苏州通润驱动设备股份有限公司 | Shaft seal structure of screw steam compressor and monitoring system thereof |
| CN110269630A (en) * | 2019-07-13 | 2019-09-24 | 深圳市北扶生物医疗科技有限公司 | A kind of laser burn device |
| CN111022343B (en) * | 2019-12-19 | 2022-07-15 | 烟台东德氢能技术有限公司 | Centrifugal air compressor |
| CN112503025A (en) * | 2020-02-28 | 2021-03-16 | 长城汽车股份有限公司 | Air compressor and vehicle |
| CN114083961B (en) * | 2021-12-14 | 2023-12-26 | 江铃汽车股份有限公司 | Fixed displacement compressor of automobile air conditioner |
| CN117653256B (en) * | 2024-01-31 | 2024-04-16 | 四川省肿瘤医院 | Portable hemodialysis nursing hemostasis device with alarming function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160760Y (en) * | 1993-04-09 | 1994-04-06 | 铁道部大连内燃机车研究所 | New structure of bearing assembly for waste gas turbine pressurizer |
| US5967524A (en) * | 1993-05-21 | 1999-10-19 | Jm Clipper Corporation | Hybrid seal device |
| CN1888484A (en) * | 2006-07-27 | 2007-01-03 | 东方汽轮机厂 | Structure for preventing water coming into turbine fuel and fuel leakaging |
| CN201096013Y (en) * | 2007-08-30 | 2008-08-06 | 大连经济技术开发区泽通机械有限公司 | Large power natural gas engine turbo-charger oil seal device |
| CN201963591U (en) * | 2011-03-07 | 2011-09-07 | 江苏金通灵流体机械科技股份有限公司 | Shaft seal device of air compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08135458A (en) * | 1994-11-09 | 1996-05-28 | Toyota Motor Corp | Oil seal structure for supercharger |
| DE10122440B4 (en) * | 2001-05-09 | 2005-12-01 | Mtu Aero Engines Gmbh | Arrangement with a shaft bearing associated Abschleuderring and a sealing gap associated seal |
-
2011
- 2011-03-07 CN CN201110053237.2A patent/CN102094845B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2160760Y (en) * | 1993-04-09 | 1994-04-06 | 铁道部大连内燃机车研究所 | New structure of bearing assembly for waste gas turbine pressurizer |
| US5967524A (en) * | 1993-05-21 | 1999-10-19 | Jm Clipper Corporation | Hybrid seal device |
| CN1888484A (en) * | 2006-07-27 | 2007-01-03 | 东方汽轮机厂 | Structure for preventing water coming into turbine fuel and fuel leakaging |
| CN201096013Y (en) * | 2007-08-30 | 2008-08-06 | 大连经济技术开发区泽通机械有限公司 | Large power natural gas engine turbo-charger oil seal device |
| CN201963591U (en) * | 2011-03-07 | 2011-09-07 | 江苏金通灵流体机械科技股份有限公司 | Shaft seal device of air compressor |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平8-135458A 1996.05.28 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094845A (en) | 2011-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094845B (en) | Shaft seal device of air compressor | |
| CN102861927B (en) | Super-high-speed electric main shaft sealing structure adopting water lubricating static pressure bearing | |
| CN201963591U (en) | Shaft seal device of air compressor | |
| CN207278846U (en) | A kind of multiple axial mechanical labyrinth formula sealing structure in mining gear reducer shaft end | |
| CN201627605U (en) | Sealing and heat insulation structure at vortex end of turbocharger | |
| CN104454150A (en) | Turbocharger gas compressor sealing structure | |
| CN101710754A (en) | Electric main shaft lubricated by water or water fog | |
| CN204827541U (en) | Full floating bearing turbo charger rotor system | |
| CN107044434B (en) | A kind of minitype high voltage centrifugal blower | |
| CN206889258U (en) | A kind of special dry vacuum unit of steel mill's refinery practice | |
| CN202991501U (en) | Oil supply structure for compressor and horizontal rotary compressor using the oil supply structure | |
| CN204402646U (en) | Compressor end sealing structure of turbosuperchargers | |
| CN201599202U (en) | High temperature and high pressure process pump | |
| CN217055298U (en) | Shaft end sealing structure of turbocharger | |
| CN203362380U (en) | Hermetic sealing device with external power for hydraulic turbine generator | |
| CN202611779U (en) | Double-seal-ring and double-oil-cavity middle body structure for turbocharger | |
| CN102606366B (en) | Special built-in cantilever type water turbine for cooling tower | |
| CN202082291U (en) | End cover of bearing box of fan | |
| CN201629629U (en) | Motor spindle lubricated by water or water mist | |
| CN110056513B (en) | Sealing structure of steam centrifugal compressor | |
| CN204140461U (en) | Novel material conveying centrifugal blower | |
| CN201779002U (en) | Sealing device of water pump bearing | |
| CN201696503U (en) | Forced lubricating and cooling labyrinth sealing high-speed bearing seat | |
| CN205013325U (en) | Multistage centrifugal blower | |
| CN214118555U (en) | Oil seal structure of compressor and centrifugal compressor comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 226001, No. 666, Zhong Xiu Dong Lu, Jiangsu, Nantong Patentee after: Jintongling Technology Group Co.,Ltd. Address before: 226001, No. 666, Zhong Xiu Dong Lu, Jiangsu, Nantong Patentee before: JIANGSU JINTONGLING FLUID MACHINERY TECHNOLOGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Shaft sealing device of air compressor Effective date of registration: 20210727 Granted publication date: 20130116 Pledgee: All bondholders Pledgor: Jintongling Technology Group Co.,Ltd. Registration number: Y2021980006870 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220923 Granted publication date: 20130116 Pledgee: All bondholders Pledgor: Jintongling Technology Group Co.,Ltd. Registration number: Y2021980006870 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |