CN107654377A - The gland seal device of oil free screw machine - Google Patents
The gland seal device of oil free screw machine Download PDFInfo
- Publication number
- CN107654377A CN107654377A CN201710900718.XA CN201710900718A CN107654377A CN 107654377 A CN107654377 A CN 107654377A CN 201710900718 A CN201710900718 A CN 201710900718A CN 107654377 A CN107654377 A CN 107654377A
- Authority
- CN
- China
- Prior art keywords
- seal
- isolation
- oil free
- screw machine
- free screw
- 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.)
- Pending
Links
- 210000004907 gland Anatomy 0.000 title claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000002347 injection Methods 0.000 claims abstract description 6
- 239000007924 injection Substances 0.000 claims abstract description 6
- 239000000498 cooling water Substances 0.000 claims description 25
- 239000011148 porous material Substances 0.000 claims description 7
- 125000002837 carbocyclic group Chemical group 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C27/009—Shaft sealings specially adapted for pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
- F01C19/12—Sealing arrangements in rotary-piston machines or engines for other than working fluid
- F01C19/125—Shaft sealings specially adapted for rotary or oscillating-piston machines or engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/06—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
- F04C29/042—Heating; Cooling; Heat insulation by injecting a fluid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A kind of gland seal device of oil free screw machine, including preposition sealing, primary seal, isolation hermetic seal and bearing on the rotor of oil free screw machine.Primary seal is between preposition sealing and bearing；Isolate hermetic seal between primary seal and bearing；Primary seal is double mechanical seal；The water injection hole and backwater hole through housing sidewall are offered respectively in the housing of the oil free screw machine position corresponding with double mechanical seal；The isolation gas air admission hole through housing sidewall is provided with the housing of the oil free screw machine position corresponding with isolation hermetic seal, the isolation gas entrance hole through isolation hermetic seal side wall is provided with the side wall of isolation hermetic seal, being filled with the isolation gas of isolation gas air admission hole can enter in isolation gas entrance hole；The mudhole through housing sidewall is provided with housing of the mechanical seal with isolating the oil free screw machine between hermetic seal.The present invention will not pollute to the working media steam in screw machine working chamber, also not interfere with the service life of rotor bearing.
Description
Technical field
The present invention relates to the gland seal device of oil free screw machine.
Background technology
Gland seal device is used to bearing lubrication oil system being effectively isolated with working chamber to come, and is the important portion of oil free screw machine
Part.The gland seal device of existing oil free screw machine is generally combined by preposition sealing and primary seal, and preposition sealing is general to be used
Labyrinth seal or carbon ring seal, primary seal use with the oily mechanical seal as sealing medium or are used as sealing medium by the use of gas
Dry gas seals.Leakage, high pressure and high temperature are the common problems that current oil free screw machine side faces.Existing gland seal device can not be thorough
Bottom solves the leakage problem of Seal Oil and blanket gas, can only be reduced as far as mechanical seal Seal Oil and dry gas seals it is close
The amount of leakage of gas is sealed, what the pollution of Seal Oil and blanket gas to internal working media steam was constantly present, the steam of closed cycle
Operating mode is more serious.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of gland seal device of oil free screw machine, and it will not be to screw rod
Working media steam in machine working chamber pollutes, and does not also interfere with the use longevity of the bearing on oil free screw machine rotor
Life.
In order to solve the above technical problems, the present invention adopts the technical scheme that：
The invention provides the gland seal device of oil free screw machine, the gland seal device is included on the rotor of oil free screw machine
Preposition sealing, primary seal and bearing；Primary seal is between preposition sealing and bearing；The gland seal device also includes being arranged on nothing
Isolation hermetic seal on the rotor of oily screw machine, isolation hermetic seal is between primary seal and bearing；Primary seal is Double End machine
Tool seals；Offered respectively through housing sidewall in the housing of the oil free screw machine position corresponding with double mechanical seal
Water injection hole and the backwater hole through housing sidewall；It is provided with and passes through in the housing of the oil free screw machine position corresponding with isolation hermetic seal
The isolation gas air admission hole of housing sidewall is worn, the isolation conductance through isolation hermetic seal side wall is provided with the side wall of isolation hermetic seal
Enter hole, being filled with the isolation gas of isolation gas air admission hole can enter in isolation gas entrance hole；Mechanical seal with isolate hermetic seal it
Between oil free screw machine housing be provided with through housing sidewall mudhole.
After adopting the above technical scheme, the present invention at least has advantages below：
1st, the gland seal device of oil free screw machine according to an embodiment of the invention is by double mechanical seal water filling, making both-end
It can be sealed between the rotating ring and stationary ring of face mechanical seal by high pressure moisture film, so as to fundamentally avoid existing machine
Tool sealing is because of the phenomenon polluted using oil or dry gas as sealing medium to the working media steam in working chamber, with this
Meanwhile the gland seal device of oil free screw machine according to an embodiment of the invention is additionally provided between double mechanical seal and bearing
Isolate hermetic seal, moisture can be avoided to bearing；
2nd, the gland seal device of oil free screw machine according to an embodiment of the invention can realize the cooling treatment to preposition sealing, make
Obtain the operating mode that the gland seal device can adapt to high-temperature medium steam.
Brief description of the drawings
Fig. 1 shows the structural representation of one embodiment of the gland seal device according to oil free screw machine of the present invention.
Embodiment
Further explanation is made to the present invention below in conjunction with the accompanying drawings.
It refer to Fig. 1.The gland seal device of oil free screw machine according to an embodiment of the invention includes being arranged on oil free screw
Preposition sealing 1, primary seal 2, isolation hermetic seal 3 and bearing on the rotor 9 of machine（Not shown in figure）.
Primary seal 2 is between preposition sealing 1 and bearing；Isolate hermetic seal 3 between primary seal 2 and bearing.In Fig. 1
Example in, preposition sealing 1 and isolation hermetic seal 3 is carbon ring seal, and three carbocyclic rings 10 are provided with preposition sealing 1, isolation gas
Twice carbocyclic ring 30 is provided with sealing 3, primary seal 2 is double mechanical seal.In other embodiments, preposition sealing 1 can also adopt
With labyrinth seal, isolation hermetic seal 3 can use labyrinth seal or dry gas seals.
Offered respectively through the side of housing 8 in the housing 8 of the oil free screw machine position corresponding with double mechanical seal 2
The water injection hole 81 of wall and the backwater hole 82 through housing sidewall.By water injection hole 81 can the water filling into double mechanical seal 2, note
The water entered can form high pressure moisture film between the rotating ring and stationary ring of double mechanical seal 2, so as to realize sealing.Inject Double End
The water overwhelming majority as sealing medium in mechanical seal flows out from backwater hole 82.
The isolation gas through the side wall of housing 8 is provided with the housing 8 of the oil free screw machine position corresponding with isolation hermetic seal 3
Air admission hole 83, the isolation gas entrance hole 33 through isolation hermetic seal side wall is provided with the side wall of isolation hermetic seal 3, is filled with isolation
The isolation gas of gas air admission hole 83 can be entered in isolation gas entrance hole 33, and then enters isolation gas by isolating gas entrance hole 33
Gap between the inwall and the outer peripheral face of rotor 9 of sealing 3.In mechanical seal 2 with isolating the oil free screw machine between hermetic seal 3
Housing is provided with the mudhole 84 through the side wall of housing 8, in the presence of gas is isolated, the water as sealing medium of micro leakage
It can be discharged from mudhole 84.In the present embodiment, it is provided with the lateral surface of isolation hermetic seal 3 along the circumference for isolating hermetic seal
The annular isolation gas guiding groove 34 of direction extension, isolation gas entrance hole 33 are opened on the bottom surface of annular isolation gas guiding groove 34；Every
From the outlet face annular isolation gas guiding groove 34 of gas air admission hole 83, annular can be passed through by being filled with the isolation gas of isolation gas air admission hole 83
Isolation gas guiding groove 34 is led out into isolation gas entrance hole 33.The isolation gas can be compressed air, ammonia etc..
In order that gland seal device can adapt to the operating mode of high-temperature medium steam, oil free screw machine housing 8 with it is preposition close
1 corresponding position is sealed to offer respectively through the first cooling water inlet opening 85 of the side wall of housing 8 and through the cold of housing sidewall
But water backwater hole 86, the annular diversion groove extended along the circumferential direction of preposition sealing 1 is provided with the lateral surface of preposition sealing 1
11, the delivery port of the first cooling water inlet opening 85 and the water inlet of cooling water backwater hole 86 distinguish face annular diversion groove 11.
The second cooling water water inlet through the side wall of housing 8 is offered on oil free screw casing body between preposition sealing 1 and primary seal 2
Hole 87.In the present embodiment, the first sealing ring 51 and the second sealing ring 52 are arranged with the lateral surface of preposition sealing 1, first
Cooling water inlet opening 85 is close to the first sealing ring 51, and the second cooling water inlet opening 87 is close to the second sealing ring 52.In preposition sealing 1
Compressed with the axial touching position of the housing 8 of oil free screw machine using graphite pads 53.
Cooling water time can be flowed into by the guiding of annular diversion groove 11 by injecting the cooling water of the first cooling water inlet opening 85
Water hole 86, in the process, cooling water can cool down to the 1, first sealing ring 51 of preposition sealing and the second sealing ring 52,
Cooling water only circulates in housing 8, is flowed out by cooling water backwater hole 86.The cooling water for injecting the second cooling water inlet opening 87 reaches
To the surface of rotor 9, the 1, first sealing ring 51 of preposition sealing, the second sealing ring 52 and rotor 9 are cooled down.
Offered on oil free screw casing body between the first cooling water inlet opening 85 and the second cooling water inlet opening 87
Through the balance lumen pore 88 of the side wall of housing 8, balance lumen pore 88 is used to connect with the gas piping of the low-pressure end of oil free screw machine, draws
Enter operating on low voltage medium steam.It is provided with along the annular of the circumferential direction extension of preposition sealing 1 and leads in the lateral surface of preposition sealing 1
Gas groove 12, the outlet of the annular face of air guide groove 12 balance lumen pore 88, the bottom surface of annular air guide groove 12 offer one or
Multiple air guide through holes 13 through 1 side wall of preposition sealing.The operating on low voltage medium steam being filled with balance lumen pore 88 can pass through ring
Shape air guide groove 12 is led out into air guide through hole 13, so as to reduce the water injection pressure of on high-tension side primary seal 3.
Screw machine according to an embodiment of the invention can be helical-lobe compressor or screw expander, the application without whelk
The gland seal device of bar machine is applicable to compressor and expanding machine.
Claims (8)
1. the gland seal device of oil free screw machine, the gland seal device includes preposition close on the rotor of oil free screw machine
Envelope, primary seal and bearing；The primary seal is between the preposition sealing and the bearing；Characterized in that, the axle
Seal apparatus also includes the isolation hermetic seal on the rotor of oil free screw machine, and the isolation hermetic seal is located at the primary seal
Between the bearing；The primary seal is double mechanical seal；
Offered respectively through housing in the housing of the oil free screw machine position corresponding with the double mechanical seal
The water injection hole of side wall and the backwater hole through housing sidewall；It is relative with the isolation hermetic seal in the housing of the oil free screw machine
The position answered is provided with the isolation gas air admission hole through housing sidewall, is provided with the side wall of the isolation hermetic seal through isolation gas
The isolation gas entrance hole of side wall is sealed, being filled with the isolation gas of isolation gas air admission hole can enter in the isolation gas entrance hole；
Mechanical seal is with isolating the housing of the oil free screw machine between hermetic seal provided with the mudhole through the housing sidewall.
2. the gland seal device of oil free screw machine as claimed in claim 1, it is characterised in that in the housing of the oil free screw machine
The position corresponding with the preposition sealing offers through the first cooling water inlet opening of housing sidewall and through housing respectively
The cooling water backwater hole of side wall, the annular extended along the circumferential direction of preposition sealing is provided with the lateral surface of the preposition sealing
Described in the water inlet difference face of diversion groove, the delivery port of the first cooling water inlet opening and the cooling water backwater hole
Annular diversion groove；
Second through housing sidewall is offered on oil free screw casing body between the preposition sealing and the primary seal
Cooling water inlet opening.
3. the gland seal device of oil free screw machine as claimed in claim 2, it is characterised in that on the lateral surface of the preposition sealing
It is arranged with the first sealing ring and the second sealing ring, the first cooling water inlet opening is close to first sealing ring, and described second
Cooling water inlet opening is close to second sealing ring.
4. the gland seal device of oil free screw machine as claimed in claim 2, it is characterised in that in the first cooling water inlet opening
The balance lumen pore through housing sidewall is offered on oil free screw casing body between the second cooling water inlet opening, it is described
Balance lumen pore is used to connect with the gas piping of the low-pressure end of oil free screw machine；
The annular air guide groove extended along the circumferential direction of preposition sealing, the ring are provided with the lateral surface of the preposition sealing
Balance the outlet of lumen pore described in shape air guide groove face, the bottom surface of the annular air guide groove is offered before one or more runs through
Put the air guide through hole of sealing side wall.
5. the gland seal device of oil free screw machine as claimed in claim 1, it is characterised in that described preposition to be sealed into carbocyclic ring close
Envelope or labyrinth seal.
6. the gland seal device of oil free screw machine as claimed in claim 1, it is characterised in that described isolation hermetic seal is carbocyclic ring
Sealing, labyrinth seal or dry gas seals.
7. the gland seal device of the oil free screw machine as described in claim 1 or 6, it is characterised in that in the isolation hermetic seal
Lateral surface is provided with the annular isolation gas guiding groove extended along the circumferential direction of isolation hermetic seal, the isolation gas entrance hole opening
In the bottom surface of the annular isolation gas guiding groove；Annular isolation gas guiding groove described in the outlet face of the isolation gas air admission hole.
8. the gland seal device of oil free screw machine as claimed in claim 1, it is characterised in that described screw machine is screw compression
Machine or screw expander.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900718.XA CN107654377A (en) | 2017-09-28 | 2017-09-28 | The gland seal device of oil free screw machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710900718.XA CN107654377A (en) | 2017-09-28 | 2017-09-28 | The gland seal device of oil free screw machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107654377A true CN107654377A (en) | 2018-02-02 |
Family
ID=61116655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710900718.XA Pending CN107654377A (en) | 2017-09-28 | 2017-09-28 | The gland seal device of oil free screw machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654377A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285054A (en) * | 2019-06-14 | 2019-09-27 | 泉州市华德机电设备有限公司 | A kind of water lubrication screw air compressor |
| CN111502776A (en) * | 2020-04-28 | 2020-08-07 | 西安陕鼓动力股份有限公司 | Nitrogen sealing system and method for turboexpander with stator blade adjusting cavity seal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584877Y (en) * | 2002-10-08 | 2003-11-05 | 袁华 | Double-flow Quimby pump |
| CN102959287A (en) * | 2011-10-27 | 2013-03-06 | 三菱重工业株式会社 | Dry gas sealing structure |
| CN202900665U (en) * | 2012-11-09 | 2013-04-24 | 上海齐耀螺杆机械有限公司 | Oil-water mixed lubrication type shaft seal device for spray cooling screw compressor |
| CN206376900U (en) * | 2016-12-24 | 2017-08-04 | 上海齐耀膨胀机有限公司 | The gland seal device of high-temperature steam screw machine |
| CN107061285A (en) * | 2017-04-11 | 2017-08-18 | 东营海森密封技术有限责任公司 | A kind of float-ring sealing device and blanket gas supply system for helical-lobe compressor |
| CN207349084U (en) * | 2017-09-28 | 2018-05-11 | 上海齐耀螺杆机械有限公司 | The gland seal device of oil free screw machine |
-
2017
- 2017-09-28 CN CN201710900718.XA patent/CN107654377A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584877Y (en) * | 2002-10-08 | 2003-11-05 | 袁华 | Double-flow Quimby pump |
| CN102959287A (en) * | 2011-10-27 | 2013-03-06 | 三菱重工业株式会社 | Dry gas sealing structure |
| CN202900665U (en) * | 2012-11-09 | 2013-04-24 | 上海齐耀螺杆机械有限公司 | Oil-water mixed lubrication type shaft seal device for spray cooling screw compressor |
| CN206376900U (en) * | 2016-12-24 | 2017-08-04 | 上海齐耀膨胀机有限公司 | The gland seal device of high-temperature steam screw machine |
| CN107061285A (en) * | 2017-04-11 | 2017-08-18 | 东营海森密封技术有限责任公司 | A kind of float-ring sealing device and blanket gas supply system for helical-lobe compressor |
| CN207349084U (en) * | 2017-09-28 | 2018-05-11 | 上海齐耀螺杆机械有限公司 | The gland seal device of oil free screw machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285054A (en) * | 2019-06-14 | 2019-09-27 | 泉州市华德机电设备有限公司 | A kind of water lubrication screw air compressor |
| CN111502776A (en) * | 2020-04-28 | 2020-08-07 | 西安陕鼓动力股份有限公司 | Nitrogen sealing system and method for turboexpander with stator blade adjusting cavity seal |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |