CN206860530U - A kind of high sealing gas sealing system of centrifugal compressor - Google Patents
A kind of high sealing gas sealing system of centrifugal compressor Download PDFInfo
- Publication number
- CN206860530U CN206860530U CN201720582708.1U CN201720582708U CN206860530U CN 206860530 U CN206860530 U CN 206860530U CN 201720582708 U CN201720582708 U CN 201720582708U CN 206860530 U CN206860530 U CN 206860530U
- Authority
- CN
- China
- Prior art keywords
- sealing
- soft coating
- centrifugal compressor
- comb structure
- spiral case
- 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
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of high sealing gas sealing system of centrifugal compressor, including spiral case (1), impeller axle (2) and sealing gland (3), one end of the impeller axle (2) is extended in the spiral case (1), the sealing gland (3) is in a ring, its outer rim connects with the inwall of the spiral case (1), it is characterized in that, in the inner edge of the sealing gland (3) and the outer wall of the impeller axle (2), one of which is provided with coating (4), another one is provided with comb structure (5), the coating (4) is fitted close with the comb structure (5).Due to setting coating, and comb structure is set in impeller axle, sealing property is greatly improved, and reduces air leakage, the sealing being suitable under high pressure operating mode.
Description
Technical field
It the utility model is related to air compression field, and in particular to a kind of high sealing gas sealing system of centrifugal compressor.
Background technology
Centrifugal compressor is a kind of conventional compressed air unit, and centrifugal compressor is made up of rotor, stator and bearing etc..
The parts such as impeller, which are enclosed on main shaft, forms rotor, and rotor bearing is rotated at a high speed on bearing by engine driving.Stator includes
The parts such as casing, dividing plate, sealing, inlet plenum and volute casing.The retaining elements such as diffuser, bend and return channel are formed between dividing plate.
The centrifugal compressor of only one impeller is referred to as single-stage radial compressor, and have two or more impeller is referred to as multi-stage centrifugal compression
Machine.The passages such as every grade of diffuser by impeller and behind form.When impeller rotates at a high speed, due to power between blade and gas
Interaction, mainly centrifugal force effect, gas sucks at impeller central, is flowed to along Ye Dao (passage between blade)
Impeller outer edge.For impeller to gas work done, gas obtains energy, and pressure and speed improve.Then, it is logical to flow through diffuser etc. for gas
Road, speed reduce, and pressure further improves, i.e., kinetic energy is changed into pressure energy.Conveyed by the gas of diffuser outflow into volute casing
Go out, or continue to compress into next stage by bend and return channel.In order to reduce by between rotor and retaining element
Air leakage, frequently with sealing structure.Generally use comb tooth sealing structure in the prior art, broach connect with the outer wall of impeller axle,
Therebetween seamless connect can not be accomplished.Air leakage is big, the sealing being suitable only under low pressure operating mode, and is not suitable for high pressure operating mode
Under sealing.
The content of the invention
In order to solve the above technical problems, goal of the invention of the present utility model is to provide a kind of high sealing of centrifugal compressor
Gas sealing system, due to setting coating, and comb structure is set in impeller axle, sealing property is greatly improved, and reduces
Air leakage, the sealing that is suitable under high pressure operating mode.
For achieving the above object, the utility model provides following technical scheme：A kind of centrifugal compressor it is highly dense
Gas sealing system is sealed, including spiral case (1), impeller axle (2) and sealing gland (3), one end of the impeller axle (2) extend to the spiral case
(1) in, in a ring, its outer rim connects the sealing gland (3) with the inwall of the spiral case (1), and the inner edge deposition of the sealing gland (3) has
Soft coating (4), the outer wall of the impeller axle (2) are provided with comb structure (5), and the soft coating (4) is tight with the comb structure (5)
Close fit.
Further, the soft coating (4) is deposition soft coating.
Further, the soft coating (4) is WS2Soft coating or MoS2Soft coating.
Further, the soft coating (4) is provided with the annular groove with the comb structure (5) male-female engagement.
Further, the ring is scraped after being rotated against in the increment insertion soft coating (4) of the comb structure (5)
Connected in star.
Further, the radial thickness of the soft coating (4) is 2.5-3.0 millimeters.
Further, the radial direction tooth depth of the comb structure (5) is 4-5 millimeters.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
1. the high sealing gas sealing system of centrifugal compressor disclosed in the utility model, by setting soft painting in the inner edge of sealing gland
Layer, comb structure is set in impeller axle so that comb structure can combine even closer between coating, comb structure with
Good sealing is formed between coating, reduces air leakage；
2. the high sealing gas sealing system of centrifugal compressor disclosed in the utility model, by the way that coating is arranged into soft coating,；
3. the high sealing gas sealing system of centrifugal compressor disclosed in the utility model, by the way that the increment of comb structure is inserted
In soft coating, groove can be scraped, further reduces air leakage.
Brief description of the drawings
Fig. 1 is the structural representation of the high sealing gas sealing system of centrifugal compressor disclosed in the utility model.
Wherein, 1, spiral case；2nd, impeller axle；3rd, sealing gland；4th, soft coating；5th, comb structure.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Embodiment one
Referring to Fig. 1, as shown in legend therein, a kind of high sealing gas sealing system of centrifugal compressor, including spiral case 1, leaf
Wheel shaft 2 and sealing gland 3, one end of impeller axle 2 are extended in spiral case 1, sealing gland 3 in a ring, its outer rim and the inwall phase of spiral case 1
Connect, its inner rim deposition has soft coating 4, and the outer wall of impeller axle 2 is provided with comb structure 5, and soft coating 4 is fitted close with comb structure 5.
Comb structure 5 and soft coating 4 are fitted close, and reach the effect of sealing.
In a kind of embodiment, soft coating 4 is WS2Soft coating or MoS2Soft coating.
In a kind of embodiment, soft coating 4 is provided with the annular groove with the male-female engagement of comb structure 5.
It is recessed that above-mentioned annular is scraped in a kind of embodiment, after being rotated against after the increment insertion soft coating 4 of comb structure 5
Groove.
The radial thickness of soft coating 4 is 2.5 millimeters or 2.8 millimeters or 3.0 millimeters.The radial direction tooth depth of comb structure 5 is 4 millis
Rice or 4.5 millimeters or 5 millimeters.
It is above the description to the utility model embodiment, by the foregoing description of the disclosed embodiments, makes ability
Domain professional and technical personnel can realize or using the utility model.The professional skill of a variety of modifications to these embodiments to this area
Will be apparent for art personnel, generic principles defined herein can not depart from it is of the present utility model spirit or
In the case of scope, realize in other embodiments.Therefore, the utility model is not intended to be limited to these realities shown in this article
Example is applied, and is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.
Claims (7)
1. a kind of high sealing gas sealing system of centrifugal compressor, including spiral case (1), impeller axle (2) and sealing gland (3), the leaf
One end of wheel shaft (2) is extended in the spiral case (1), the sealing gland (3) in a ring, the inwall of its outer rim and the spiral case (1)
Connect, it is characterised in that the inner edge of the sealing gland (3) is provided with soft coating (4), and the outer wall of the impeller axle (2) is provided with broach knot
Structure (5), the soft coating (4) are fitted close with the comb structure (5).
2. the high sealing gas sealing system of centrifugal compressor according to claim 1, it is characterised in that the soft coating (4)
To deposit soft coating.
3. the high sealing gas sealing system of centrifugal compressor according to claim 1, it is characterised in that the soft coating (4)
For WS2Soft coating or MoS2Soft coating.
4. the high sealing gas sealing system of centrifugal compressor according to claim 1, it is characterised in that the soft coating (4)
Provided with the annular groove with the comb structure (5) male-female engagement.
5. the high sealing gas sealing system of centrifugal compressor according to claim 4, it is characterised in that the comb structure
(5) annular groove is scraped after being rotated against in the increment insertion soft coating (4).
6. the high sealing gas sealing system of centrifugal compressor according to claim 1, it is characterised in that the soft coating (4)
Radial thickness be 2.5-3.0 millimeters.
7. the high sealing gas sealing system of centrifugal compressor according to claim 1, it is characterised in that the comb structure
(5) radial direction tooth depth is 4-5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582708.1U CN206860530U (en) | 2017-05-24 | 2017-05-24 | A kind of high sealing gas sealing system of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720582708.1U CN206860530U (en) | 2017-05-24 | 2017-05-24 | A kind of high sealing gas sealing system of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206860530U true CN206860530U (en) | 2018-01-09 |
Family
ID=60824807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720582708.1U Expired - Fee Related CN206860530U (en) | 2017-05-24 | 2017-05-24 | A kind of high sealing gas sealing system of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206860530U (en) |
-
2017
- 2017-05-24 CN CN201720582708.1U patent/CN206860530U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105164426B (en) | Impeller and fluid machine | |
| CN104995375B (en) | Sealing assembly between hot gas route and disc cavity in turbine engine | |
| US9874224B2 (en) | Centrifugal compressor and turbocharger | |
| CN103052808B (en) | Scroll structure of centrifugal compressor | |
| CN105874212A (en) | Intermediate intake-type diaphragm and centrifugal rotating machine | |
| CN104884761B (en) | Variable-nozzle unit and variable capacity type booster | |
| CN106151063B (en) | CO circulating gas compressor | |
| WO2015064272A1 (en) | Centrifugal compressor and supercharger | |
| CN201265547Y (en) | Balancing type single-suction horizontal multiple-stage centrifugal pump | |
| CN108457898A (en) | A kind of blade wheel structure for compressor | |
| CN105980685A (en) | Labyrinth seal device for axial-flow turbine and exhaust gas turbocharger equipped with same | |
| US10746025B2 (en) | Turbine wheel, radial turbine, and supercharger | |
| WO2015019909A1 (en) | Centrifugal compressor and supercharger | |
| CN105518307A (en) | Centrifugal rotor | |
| CN207246048U (en) | A kind of multistage centrifugal air compressor | |
| US20150354588A1 (en) | Centrifugal compressor | |
| CN110081026A (en) | It is a kind of for weakening the entry guide vane and adjusting method of centrifugal compressor blade-tip leakage flow | |
| CN206860530U (en) | A kind of high sealing gas sealing system of centrifugal compressor | |
| CN108278221B (en) | Air inlet sealing structure and fan | |
| JP2015190382A (en) | compressor impeller, centrifugal compressor, and supercharger | |
| CN107044434A (en) | A kind of minitype high voltage centrifugal blower | |
| JP2015194091A (en) | Compressor impeller, centrifugal compressor and supercharger | |
| WO2008027388A3 (en) | Vacuum pumps with improved pumping channel cross sections | |
| JP2015031219A (en) | Radial turbine and supercharger | |
| JP2016061223A (en) | Turbo rotary machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20210524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |