CN109681461A - A kind of compressor sealing structure of shaft end - Google Patents
A kind of compressor sealing structure of shaft end Download PDFInfo
- Publication number
- CN109681461A CN109681461A CN201811570308.4A CN201811570308A CN109681461A CN 109681461 A CN109681461 A CN 109681461A CN 201811570308 A CN201811570308 A CN 201811570308A CN 109681461 A CN109681461 A CN 109681461A
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- CN
- China
- Prior art keywords
- seal
- axle envelope
- unit
- sealing
- shaft end
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
-
- 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
- F04C27/005—Axial sealings for working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a kind of compressor sealing structure of shaft end, belong to shaft end seal technical field, is worn for sealing gear piece after solving existing axle end sealing device long-time use, gap is caused to increase, sealing effect decline, seals the short problem of the service life of gear piece.Shaft seal housing of the invention includes the first axle envelope unit and the second axle envelope unit symmetrical along rotor center face, first axle envelope unit and the second axle envelope unit are connected with each other with first shell and second shell respectively, first axle envelope unit and the second equal circumferential direction of axle envelope unit offer interconnected placing groove, sealing unit has been symmetrically arranged in two placing grooves, sealing unit includes multiple seals, sealing unit radially offers the seal groove of annular, diaphragm seal is provided in seal groove, diaphragm seal is connected with floatation element.
Description
Technical field
The present invention relates to shaft end seal technical fields, more particularly to a kind of compressor sealing structure of shaft end.
Background technique
The shaft end seal of compressor be in order to prevent gap of its working media between the dynamic and static component of compressor to leaking
Leakage.Existing compressor shaft end seal common structure is using the sealing gear piece being embedded on rotor and the groove group on shaft seal housing
At labyrinth seal；But its poor sealing performance, and after long-time use, since sealing gear piece abrasion causes gap to become larger, leak
Tolerance increases, and sealing effect reduces, and after prolonged use, shaft seal housing may also deform, and partially sealed gap, which becomes larger, leads
Air leakage is caused to become larger.Also, sealing gear piece is prone to wear, and the replacement of gear piece needs to return manufacturer's progress, the dimension of equipment
It is long to repair the period, costly.
Summary of the invention
It is an object of the invention to: in order to solve sealing gear piece abrasion after existing axle end sealing device long-time use,
Gap is caused to increase, sealing effect decline seals the short problem of the service life of gear piece, the present invention provides a kind of compressor axis
Hold sealing structure.
The present invention specifically uses following technical scheme to achieve the goals above:
Compressor sealing structure of shaft end of the invention, if including shell and the rotor for being inlaid with dry seal gear piece, shell
Including first shell and second shell, the periphery of rotor is arranged with shaft seal housing, and shaft seal housing is offered to cooperate with sealing gear piece
Groove；
Shaft seal housing includes the first axle envelope unit and second axle envelope unit symmetrical along rotor center face, the first axle envelope list
Member is connected with each other with first shell and second shell respectively with the second axle envelope unit, and the first axle envelope unit and the second axle envelope unit are equal
Circumferential direction offers interconnected placing groove, and sealing unit has been symmetrically arranged in two placing grooves, and sealing unit includes more
A seal, sealing unit radially offer the seal groove of annular, are provided with diaphragm seal in seal groove, diaphragm seal is connected with floating
Dynamic component.
For the present invention as it is further preferred that shaft seal housing offers multiple placing grooves, any placing groove is respectively positioned on sealing tooth
Between adjacent two gear piece of piece.
The present invention is used as it is further preferred that the floatation element includes the first floating spring and spring pressed stud；
The seal groove extends radially through the inner sidewall of seal, and the seal lateral wall offers multiple annular spreads
Spring mounting hole is provided with the first floating spring, tapped, institute at the top of the spring mounting hole in any spring mounting hole
It states spring pressed stud and screw thread cooperates.
The present invention is as it is further preferred that the seal outer wall radially offers multiple spring mounting grooves, arbitrarily
The second floating spring is provided in spring mounting groove.The present invention is used as it is further preferred that sealing body sidewall through-thickness
Multiple rivet components are provided with, any rivet component runs through spring mounting hole.
As it is further preferred that sealing body sidewall through-thickness is provided through pin, seal opens up the present invention
There is the pin mounting hole passed through convenient for pin, the pin offers pin hole through seal groove diaphragm seal correspondence, pin hole
Diameter is greater than the diameter of pin mounting hole.
The present invention as it is further preferred that diaphragm seal length be greater than seal length, arbitrary neighborhood seal it
Between be provided with gap, arbitrary neighborhood diaphragm seal mutually overlaps.
The present invention is as it is further preferred that the split of shaft seal housing is additionally provided with nail pressing, by nail pressing by sealing unit
It is separately fixed in the first axle envelope unit and the second axle envelope unit, when the first axle envelope unit and the second axle envelope unit fasten, two
Sealing unit overlaps to form annular.
Beneficial effects of the present invention are as follows:
1, the present invention provides a kind of novel sealing structure of shaft end, improves the sealing structure of shaft end, it is innovative will be traditional
Labyrinth sealing and the sealing structure of the present application are combined use, further increase the sealing structure of shaft end；The present invention
Sealing structure convenient disassembly, sealing unit unit replacement is convenient, maintainable good, securely and reliably, compact-sized, and manufactures
Difficulty is low, at low cost, and cost performance is high；First axle envelope unit and the second axle envelope unit, diametrically symmetrically, the first axle envelope unit
With sealing unit is symmetrically arranged in the second axle envelope unit, sealing unit is made of multiple seals, and sealing unit is radially opened
Seal groove equipped with annular, is provided with diaphragm seal, diaphragm seal is under the action of seal assembly, the energy in seal groove in seal groove
Move radially, the sealing structure when in use, under the action of the first floating spring and the second floating spring, diaphragm seal with
Rotor outer wall gentle touchdown, during rotation, diaphragm seal effectively avoids working media from leaking out along compressor shaft end to rotor,
And by floatation element, enables diaphragm seal in the adjusting for radially carrying out adaptability, remain that diaphragm seal and rotor outer wall are light
Micro- contact guarantees the sealing effect of compressor shaft end.
2, multiple placing grooves are offered in shaft seal housing, is cooperated by multiple groups sealing unit, is further ensured that compressor
The sealing effect of shaft end, further, between adjacent gear piece, the position of placing groove is sealing unit for the position of placing groove
Position, sealing structure of the invention is combined with traditional labyrinth seal mechanism effectively, is further ensured that compressor shaft end
Sealing effect；It efficiently solves in former full gear piece structure, becomes larger since the air leakage after gear piece is worn is used for a long time, axle envelope deformation
The problem of partially sealed gap increases, and air leakage is caused to become larger.
3, so that diaphragm seal during working rotor is can be carried out adaptability adjusting by floatation element, pass through the first floating bullet
Spring applies radial power to diaphragm seal, guarantees that diaphragm seal gently pastes rotor outer wall always, meanwhile, diaphragm seal can be to the first floating bullet
Spring carries out a degree of compression, when effectively rotor being avoided to rotate, the case where unexpected vibration occurs, diaphragm seal is caused to damage；?
The outer wall of seal offers spring mounting groove, and the second floating spring is located in spring mounting groove, the second floating spring and placement
The inner wall of slot contacts with each other, and seal is made to have certain floatability, and diaphragm seal and seal can float, and seal clearance is small,
Its good airproof performance, leakage rate are minimum；Simultaneously as the floating of seal and diaphragm seal, is not susceptible to friction sealed use
Period is long, effectively improves service life of the invention.
4, seal groove extends radially through the inner sidewall of seal, and the lower end of spring mounting hole is goed deep into seal groove, pacifies in spring
Dress is provided with the first floating spring in hole, by the first floating spring, diaphragm seal is enable to float in seal groove, due to seal
Seal groove is offered, by multiple rivet components, seal is made to keep globality.
5, pin sequentially passes through the outer wall and diaphragm seal of seal, plays position-limiting action to diaphragm seal by pin, guarantees
Diaphragm seal limits in the seal groove of seal, facilitates installation and disassembly, and pin limits diaphragm seal in seal groove, simultaneously
The pin hole that diaphragm seal opens up is greater than the pin mounting hole of pin, so that the floating of diaphragm seal is not influenced by pin.
6, gap is provided between the seal of arbitrary neighborhood, also, the length of diaphragm seal is greater than the length of seal, makes
In arbitrary neighborhood seal installation process, adjacent diaphragm seal overlap joint processing, effectively prevent working media pass through it is adjacent close
Clearance leakage between envelope body further ensures sealing effect of the invention by the mutual overlap joint of diaphragm seal end.
7, the boundary of the first axle envelope unit and the second axle envelope unit is provided with nail pressing, by nail pressing to the first axle envelope list
Member is fixed with the sealing unit in the second axle envelope unit, and then guarantees the sealing in the first axle envelope unit and the axle envelope unit
Unit keeps a globality, similarly, guarantees that the sealing unit in the second axle envelope unit and the second axle envelope unit keeps whole
Property, when so that the first axle envelope unit and the second axle envelope unit fastening, two sealing units are combined into a complete ring packing
Body.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is that the first axle envelope unit with rotor connect partial enlargement diagram；
Fig. 3 is the schematic cross-section of shaft seal housing；
Fig. 4 is the enlarged diagram at A；
Fig. 5 is the structural schematic diagram of sealing unit；
Fig. 6 is the B-B schematic cross-sectional view of Fig. 5；
Fig. 7 is the structural schematic diagram of diaphragm seal；
Fig. 8 is the C-C schematic cross-sectional view of Fig. 7；
Fig. 9 is the structural schematic diagram of seal；
Figure 10 is the D-D schematic cross-sectional view of Fig. 9；
Figure 11 is the overlap joint schematic diagram of sealing unit；
Figure 12 is the enlarged diagram at Figure 11 E；
Appended drawing reference: 1- rotor, 2- shaft seal housing, 210- the first axle envelope unit, 220- the second axle envelope unit, 3- shell,
310- first shell, 320- second shell, 4- placing groove, 5- seal, 6- diaphragm seal, 610- seal groove, 611- pin hole,
620- spring mounting hole, 7- floatation element, the first floating spring of 710-, 720- spring pressed stud, 8- spring mounting groove, 810- second
Floating spring, 9- pin, 910- pin mounting hole, 10- rivet component, 11- nail pressing.
Specific embodiment
In order to which those skilled in the art better understand the present invention, 1-12 and following embodiment are to this with reference to the accompanying drawing
Invention is described in further detail.
Embodiment 1
Compressor sealing structure of shaft end of the invention, if including shell 3 and the rotor 1 for being inlaid with dry seal gear piece, shell
Body 3 includes first shell 310 and second shell 320, and the periphery of rotor 1 is arranged with shaft seal housing 2, and shaft seal housing 2 is offered and sealed
The mutually matched groove of gear piece；Shaft seal housing 2 includes the first axle envelope unit 210 and second axis symmetrical along 1 median plane of rotor
Unit 220 is sealed, the first axle envelope unit 210 and the second axle envelope unit 220 are mutual with first shell 310 and second shell 320 respectively
Connection, the first axle envelope unit 210 and the equal circumferential direction of the second axle envelope unit 220 offer interconnected placing groove 4, two placing grooves
Sealing unit is symmetrically arranged in 4, sealing unit includes multiple seals 5, and sealing unit radially offers annular
Seal groove 610 is provided with diaphragm seal 6 in seal groove 610, and diaphragm seal 6 is connected with floatation element 7.
After the technical solution, a kind of novel sealing structure of shaft end is provided, the sealing structure of shaft end is improved, it is innovative
The sealing of traditional labyrinth is combined use with the sealing structure of the present application, further increase the sealing knot of shaft end
Structure；Sealing structure convenient disassembly of the invention, sealing unit unit replacement is convenient, and maintainable good, securely and reliably, structure is tight
It gathers, and manufacture difficulty is low, at low cost, cost performance is high；First axle envelope unit 210 and the second axle envelope unit 220, diametrically
Symmetrically, it is symmetrically arranged with sealing unit in the first axle envelope unit 210 and the second axle envelope unit 220, sealing unit is by multiple sealings
Body 5 forms, and sealing unit radially offers the seal groove of annular, diaphragm seal 6 is provided in seal groove, diaphragm seal 6 is close
Under the action of sealing assembly, can be moved radially in seal groove, the sealing structure when in use, diaphragm seal 6 and 1 outer wall of rotor
Contact, during rotation, diaphragm seal 6 effectively avoids working media from leaking out along compressor shaft end to rotor 1, and by close
Floatation element 7 enables diaphragm seal 6 in the adjusting for radially carrying out adaptability, remains that diaphragm seal 6 is contacted with 1 outer wall of rotor, protects
Demonstrate,prove the sealing effect of compressor shaft end.
Embodiment 2
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: shaft seal housing 2 offers multiple placing grooves
4, any placing groove 4 is respectively positioned between adjacent two gear piece of sealing gear piece.
After the technical solutions, multiple placing grooves 4 are offered in shaft seal housing 2, are cooperated by multiple groups sealing unit,
It is further ensured that the sealing effect of compressor shaft end, further, the position of placing groove 4 is between adjacent gear piece, placing groove 4
Position be sealing unit position, effectively sealing structure of the invention is combined with traditional labyrinth seal mechanism, into one
Step guarantees the sealing effect of compressor shaft end；It efficiently solves in former full gear piece structure, after gear piece abrasion is used for a long time
The problem of air leakage becomes larger, and axle envelope deforms partially sealed gap increase, and air leakage is caused to become larger.
Embodiment 3
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: the floatation element 7 includes first floating
It moves spring 710 and spring pressed stud 720；The seal groove 610 extends radially through the inner sidewall of seal 5,5 lateral wall of seal
The spring mounting hole 620 of multiple annular spreads is offered, the first floating spring 710 is provided in any spring mounting hole 620,
620 top of spring mounting hole is tapped, and the spring pressed stud 720 cooperates with screw thread.The outer wall of seal 5 is along circle
Circumferential direction is also provided with multiple spring mounting grooves 8, and the second floating spring 810 is provided in any spring mounting groove 8.
After the technical solution, it is further preferred that spring pressed stud 720 and limiting slot 630 are cooperated using screw bolt.
Diaphragm seal 6 in 1 course of work of rotor is set to can be carried out adaptability adjusting by floatation element 7, it is right by the first floating spring 710
Diaphragm seal 6 applies radial power, guarantees that diaphragm seal 6 is close to 1 outer wall of rotor always, meanwhile, diaphragm seal 6 can be to the first floating spring
710 carry out a degree of compression, when rotor 1 effectively being avoided to rotate, anyway the case where surprisingly vibrating, diaphragm seal 6 caused to damage；
Spring mounting groove 8 is offered in the outer wall of seal 5, the second floating spring 810 is located in spring mounting groove 8, the second floating bullet
Spring 810 and the inner wall of placing groove 4 contact with each other, and so that seal 5 is had certain floatability, diaphragm seal 6 and seal 5 can float
Dynamic, seal clearance is small, good airproof performance, and leakage rate is minimum；Simultaneously as the floating of seal 5 and diaphragm seal 6, is not susceptible to
Friction sealed 6 service life is long, effectively improves service life of the invention.
Embodiment 4
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: the present invention be used as it is further preferred that
5 side wall through-thickness of seal is provided with multiple rivet components 10.
After the technical solution, seal groove extends radially through the inner sidewall of seal, and the lower end of spring mounting hole is goed deep into close
In sealing groove, it is provided with the first floating spring in spring mounting hole, by the first floating spring, enables diaphragm seal in seal groove
It floats, since seal offers seal groove, by multiple rivet components, seal is made to keep globality.Seal groove 610 is radial
Through the inner sidewall of seal 5, the lower end of spring mounting hole 620 is goed deep into seal groove 610, is arranged in spring mounting hole 620
There is the first floating spring 710, by the first floating spring 710, so that diaphragm seal 6 is floated in seal groove 610, due to seal
5 offer seal groove 610, by multiple rivet components 10, seal 5 are made to keep globality.Embodiment 5
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: 5 side wall through-thickness of seal passes through
It wears and is equipped with pin 9, seal 5 offers the pin mounting hole 910 passed through convenient for pin 9, and the correspondence of diaphragm seal 6 offers pin
Hole 611, the diameter of pin hole 611 are greater than the diameter of pin mounting hole 910.
After the technical solution, pin 9 sequentially passes through the outer wall and diaphragm seal 6 of seal 5, is sealed by 9 Duis of pin
Piece 6 plays position-limiting action, guarantees that diaphragm seal 6 is fixed in the seal groove 610 of seal 5, facilitates installation and disassembly, while close
The pin hole 611 that mounting 6 opens up is greater than the pin mounting hole 910 of pin 9, so that the floating of diaphragm seal 6 is not by the shadow of pin 9
It rings.
Embodiment 6
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: the length of diaphragm seal 6 is greater than seal
5 length, gap is provided between arbitrary neighborhood seal 5, and arbitrary neighborhood diaphragm seal 6 mutually overlaps.
After the technical solution, gap is provided between the seal 5 of arbitrary neighborhood, also, the length of diaphragm seal 6 is big
In the length of seal 5, so that in 5 installation process of arbitrary neighborhood seal, adjacent 6 overlap joint of diaphragm seal processing is effectively avoided
Working media is further ensured that by the clearance leakage between adjacent seals body 5 by the mutual overlap joint of 6 end of diaphragm seal
Sealing effect of the invention.
Embodiment 7
The present embodiment is that advanced optimizing of making on the basis of embodiment 1 is as follows: the boundary of shaft seal housing 2 is additionally provided with
Sealing unit is separately fixed in the first axle envelope unit 210 and the second axle envelope unit 220, first by nail pressing 11 by nail pressing 11
When axle envelope unit 210 and the second axle envelope unit 220 fasten, two sealing units overlap to form annular.
After the technical solution, the boundary of the first axle envelope unit 210 and the second axle envelope unit 220 is provided with nail pressing
11, first axle envelope unit 210 and the sealing unit in the second axle envelope unit 220 are fixed by nail pressing 11, and then guarantees
First axle envelope unit 210 keeps a globality with the sealing unit in the axle envelope unit, similarly, guarantees the second axle envelope unit
220 keep globality with the sealing unit in the second axle envelope unit 220, so that the first axle envelope unit 210 and the second axle envelope list
When member 220 fastens, two sealing units are combined into a complete annular sealing member 5.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, patent protection model of the invention
It encloses and is subject to claims, it is all to change with equivalent structure made by specification and accompanying drawing content of the invention, similarly
It should be included within the scope of the present invention.
Claims (8)
1. a kind of compressor sealing structure of shaft end, including shell (3) and if setting inside housings be inlaid with dry seal tooth
The rotor (1) of piece, the shell (3) include first shell (310) and second shell (320), and the periphery of the rotor (1) is arranged
Have shaft seal housing (2), the shaft seal housing (2) offers and the sealing mutually matched groove of gear piece；
It is characterized in that, the shaft seal housing (2) include along the first symmetrical axle envelope unit (210) of rotor (1) median plane and
Second axle envelope unit (220), the first axle envelope unit (210) and the second axle envelope unit (220) respectively with first shell (310)
It is connected with each other with second shell (320), the first axle envelope unit (210) offers with the second axle envelope unit (220) circumferential direction
Interconnected placing groove (4), two placing grooves (4) are interior to be symmetrically arranged sealing unit, and the sealing unit includes more
A seal (5), the sealing unit radially offer the seal groove (610) of annular, are provided in the seal groove (610)
Diaphragm seal (6), the diaphragm seal (6) are connected with floatation element (7).
2. compressor sealing structure of shaft end according to claim 1, which is characterized in that two placing grooves (4) are combined into
Place ring, the shaft seal housing (2) offers multiple placement rings, it is any place ring be respectively positioned on sealing gear piece adjacent two gear piece it
Between.
3. compressor sealing structure of shaft end according to claim 1, which is characterized in that the floatation element (7) includes
First floating spring (710) and spring pressed stud (720)；
The seal groove (610) extends radially through the inner sidewall of seal (5), and seal (5) lateral wall offers multiple rings
The spring mounting hole (620) of shape distribution, any spring mounting hole (620) is interior to be provided with the first floating spring (710), the bullet
Tapped at the top of spring mounting hole (620), the spring pressed stud (720) and screw thread cooperate.
4. compressor sealing structure of shaft end according to claim 1, which is characterized in that seal (5) the outer wall edge
Radial direction offers multiple spring mounting grooves (8), is provided with the second floating spring (810) in any spring mounting groove (8).
5. compressor sealing structure of shaft end according to claim 1, which is characterized in that seal (5) the side wall edge
Thickness direction is provided with multiple rivet components (10).
6. compressor sealing structure of shaft end according to claim 1, which is characterized in that seal (5) the side wall edge
Thickness direction is provided through pin (9), and the seal (5) offers the pin mounting hole passed through convenient for pin (9)
(910), the pin (9) runs through seal groove (610), and diaphragm seal (6) correspondence offers pin hole (611), the pin
The diameter in hole (611) is greater than the diameter of pin mounting hole (910).
7. compressor sealing structure of shaft end according to claim 1, which is characterized in that the length of the diaphragm seal (6)
Greater than the length of seal (5), gap, arbitrary neighborhood diaphragm seal (6) phase interconnection are provided between arbitrary neighborhood seal (5)
It connects.
8. compressor sealing structure of shaft end according to claim 1, which is characterized in that divide in the shaft seal housing (2)
Face is additionally provided with nail pressing (11), and sealing unit is separately fixed at the first axle envelope unit (210) and by the nail pressing (11)
In two axle envelope units (220), when the first axle envelope unit (210) and the second axle envelope unit (220) fasten, two sealing unit overlap joints
Form annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570308.4A CN109681461A (en) | 2018-12-21 | 2018-12-21 | A kind of compressor sealing structure of shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570308.4A CN109681461A (en) | 2018-12-21 | 2018-12-21 | A kind of compressor sealing structure of shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109681461A true CN109681461A (en) | 2019-04-26 |
Family
ID=66188661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570308.4A Pending CN109681461A (en) | 2018-12-21 | 2018-12-21 | A kind of compressor sealing structure of shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681461A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901725A (en) * | 2021-01-08 | 2021-06-04 | 中国煤炭科工集团太原研究院有限公司 | Power cutting head of heavy potassium mining machine for sylvite ores |
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|---|---|---|---|---|
| US5487549A (en) * | 1994-10-24 | 1996-01-30 | Demag Delaval Turbomachinery Corp. Turbocare Division | Turbine interfitting packing with cam adjustment |
| CN2498408Y (en) * | 2001-09-19 | 2002-07-03 | 左俊业 | Floated labyrinth spiral composite sealer |
| US20020117807A1 (en) * | 2001-02-27 | 2002-08-29 | Mitsubishi Heavy Industries Ltd. | Shaft seal for a rotating machine |
| CN1414217A (en) * | 2001-08-24 | 2003-04-30 | 王胜五 | Contact gland sealing |
| CN201461958U (en) * | 2009-06-15 | 2010-05-12 | 北京中智渝桐节能设备有限公司 | Floating metal cellular seal |
| CN204239765U (en) * | 2014-09-14 | 2015-04-01 | 许亚峰 | A kind of labyrinth seal structure |
| CN104870824A (en) * | 2012-12-19 | 2015-08-26 | 西门子公司 | Seal of a compressor rotor |
-
2018
- 2018-12-21 CN CN201811570308.4A patent/CN109681461A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5487549A (en) * | 1994-10-24 | 1996-01-30 | Demag Delaval Turbomachinery Corp. Turbocare Division | Turbine interfitting packing with cam adjustment |
| US20020117807A1 (en) * | 2001-02-27 | 2002-08-29 | Mitsubishi Heavy Industries Ltd. | Shaft seal for a rotating machine |
| CN1414217A (en) * | 2001-08-24 | 2003-04-30 | 王胜五 | Contact gland sealing |
| CN2498408Y (en) * | 2001-09-19 | 2002-07-03 | 左俊业 | Floated labyrinth spiral composite sealer |
| CN201461958U (en) * | 2009-06-15 | 2010-05-12 | 北京中智渝桐节能设备有限公司 | Floating metal cellular seal |
| CN104870824A (en) * | 2012-12-19 | 2015-08-26 | 西门子公司 | Seal of a compressor rotor |
| CN204239765U (en) * | 2014-09-14 | 2015-04-01 | 许亚峰 | A kind of labyrinth seal structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901725A (en) * | 2021-01-08 | 2021-06-04 | 中国煤炭科工集团太原研究院有限公司 | Power cutting head of heavy potassium mining machine for sylvite ores |
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Application publication date: 20190426 |