CN202646137U - Shaft-end sealing device of centrifugal type gas compression equipment - Google Patents
Shaft-end sealing device of centrifugal type gas compression equipment Download PDFInfo
- Publication number
- CN202646137U CN202646137U CN 201220127371 CN201220127371U CN202646137U CN 202646137 U CN202646137 U CN 202646137U CN 201220127371 CN201220127371 CN 201220127371 CN 201220127371 U CN201220127371 U CN 201220127371U CN 202646137 U CN202646137 U CN 202646137U
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- shaft
- sealing
- axle head
- head annular
- centrifugal
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Abstract
The utility model discloses a shaft-end sealing device of centrifugal type gas compression equipment. The shaft-end sealing device comprises a shaft-end gas sealing piece and a moving ring, wherein the shaft-end gas sealing piece is arranged on a main shaft of the centrifugal type gas compression equipment and is provided with an inner hole matched with the main shaft; the inner hole is provided with a plurality of grooves; an installing groove is arranged on the end surface where the shaft-end gas sealing piece and the moving ring are adjacently connected, and a floating ring made of special resin compound material is filled in the installing groove; a tooth groove is concavely arranged at the position of the outer circumferential surface of the shaft-end gas sealing piece, which is close to one end of the moving ring; a sealing end part is formed as follows: the end surface where the moving ring and the shaft-end gas sealing piece are adjacently connected extends towards one side of the shaft-end gas sealing piece; and the sealing end part seals the tooth groove on the shaft-end gas sealing piece. The shaft-end sealing device disclosed by the utility model has the advantages that the compound sealing mode is adopted, i.e., a mode with combination of comb-tooth sealing form of the inner hole, end-surface sealing and outer-circle sealing is adopted, so that the sealing effect is greatly enhanced.
Description
Technical field
The utility model relates to centrifugal gas compressing equipment technical field, relates in particular to the shaft end seal device of the centrifugal gas compressing equipment of large flow.
Background technique
Centrifugal gas compression equipment pressing force height is divided into centrifugal compressor, centrifugal blower, centrifugal blower.Applying pressure scope separately is: centrifugal compressor＞150kPa, centrifugal blower 20-150kPa, centrifugal blower＜20kPa.The pressure of centrifugal blower has played the effect of forming a connecting link between centrifugal compressor and centrifugal blower, belong to medium-voltage equipment in whole centrifugal compressed equipment, also can be regarded as the compressor of low pressure or the blower fan of high pressure.Domestic formulation commonly used " centrifugal blower " refers to centrifugal blower, correspondingly centrifugal blower is called " centrifugal high pressure fan " in order to distinguish.Centrifugal high pressure fan has been widely used in the every field of industry, municipal administration, environmental protection at present, comprise that steel industry, carbon black industry, paper industry, printing industry, oil refining sulfur recovery, power plant desulfurization, ore floatation, refuse landfill gas extract, process gas boosts, fluidized combustion, pneumatic tool, vacuumize, municipal sewage treatment, industrial sewage processing etc.
For conveying equipment for fluid substances such as air centrifugal blower etc., shaft end seal is its very important parts, the quality of its sealability and sealing effect directly have influence on the performance of equipment, for traditional air centrifugal blower, the axle head sealing gland generally adopts the endoporus comb teeth, the broach material is generally selected aluminium, the characteristic that has the friction bonding because of aluminium, so unsuitable too small when the design seal clearance, thereby the axle head Leakage Gas of blower fan is serious, and because leakage causes the exhaust end noise excessive, the exhaust end bearing temperature is higher.
The model utility content
The purpose of this utility model is to overcome the defective of background technique, and a kind of seal arrangement of large flow centrifugal blower is provided, and it adopts the shaft end seal mode of combined type, further to strengthen sealing effect.
For achieving the above object, the utility model proposes following technological scheme: a kind of shaft end seal device of centrifugal gas compressing equipment, described shaft end seal device comprises axle head annular gas seals and the rotating ring that is installed on the gas compressing equipment main shaft, described axle head annular gas seals has the endoporus that matches with described main shaft, described endoporus is provided with plural groove, described axle head annular gas seals and the adjacent end face of described rotating ring are provided with mounting groove, are filled with floating ring in the described mounting groove.
Described axle head annular gas seals has outer peripheral surface, described outer peripheral surface is concaved with teeth groove near an end place of rotating ring, the adjacent end face of described rotating ring and axle head annular gas seals has extended to form hermetic terminal, the teeth groove on the described axle head annular gas seals of sealing end part seal to a side of axle head annular gas seals.
Described axle head annular gas seals is to be fixedly connected on the housing of described gas compressing equipment.
The described floating ring that is filled at mounting groove is made by resin composite materials.
Described plural groove is the comb teeth-shaped groove.
The end face of described rotating ring and described axle head annular gas seals is Spielpassung mutually.
Compared with prior art, the shaft end seal device of the centrifugal gas compressing equipment that the utility model discloses adopts the sealing means of endoporus comb teeth, and the composite seal mode in conjunction with end face seal and cylindrical sealing has strengthened sealing effect greatly.
Description of drawings
Fig. 1 is the partial sectional view of the large flow centrifugal blower among the utility model embodiment;
Fig. 2 is the sectional view of shaft end seal device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, the utility model embodiment's technological scheme is carried out clear, complete description.
The shaft end seal device of the centrifugal gas compressing equipment that the utility model discloses, it is installed in the two ends of compression device main shaft, this gas compressing equipment comprises centrifugal compressor, centrifugal blower etc., a kind of centrifugal blower that adopts the utility model shaft end seal device as shown in Figure 1, it comprises casing 1, be installed in the main shaft 2 on the casing 1, suction port 3 and relief opening 4, described casing 1 comprises inlet casing 11, exit casing 12 and intermediate casing 13, described suction port 3 and relief opening 4 are arranged at respectively on inlet casing 11 and the exit casing 12, and described casing 1 inboard also is provided with the multistage gas compression unit 15 that two ends are connected with suction port 3 and relief opening 4 respectively, is provided with the impeller 16 that is loaded on the main shaft in described every grade of gas compression unit 15.
Also be provided with bearing support 17 on the described air intake casing 12, described main shaft 2 is installed on the bearing support 17 by the bearing 21 that is arranged at two ends, the fuel tank 22 that the two ends of described bearing 21 also are provided with shaft end seal device 5 and lubricate for bearing 21.
In conjunction with shown in Figure 2, described shaft end seal device 5 comprises axle head annular gas seals 6 and the rotation rotating ring 7 of being located on the main shaft 2, forms Spielpassung between the end face of this rotation rotating ring 7 and axle head annular gas seals 6.Described axle head annular gas seals 6 is fixedly installed on the centrifugal fan casing 1, it has endoporus and outer peripheral surface, be provided with the plural groove 61 of comb teeth-shaped on the endoporus that joins with main shaft 2, a side of close rotating ring 7 sets to the concave and is formed with teeth groove 62 on the outer peripheral surface of axle head annular gas seals 6, the exterior edge face that described rotating ring 7 and axle head annular gas seals 6 are joined has extended to form hermetic terminal 71 to a side of axle head annular gas seals 6, teeth groove 62 on described axle head annular gas seals 6 outer peripheral surfaces of described hermetic terminal 71 sealings forms the mode to the cylindrical sealing of main shaft.
Further, on the end face that axle head annular gas seals 6 and rotating ring 7 join, also be provided with mounting groove 63, be equiped with the floating ring 8 of being made by the Special Resin composite material in the described mounting groove 63, and form the mode to the end face seal of main shaft, with the reliability of further increase sealing.
Adopt the sealing means of endoporus comb teeth in the utility model, the composite seal mode in conjunction with end face seal and cylindrical sealing has strengthened sealing effect greatly.And the shaft end seal mode of this combined type is not limited only to the sealing of centrifugal gas compressing equipment, also is applicable to other to the sealing in the higher field of seal request.
Technology contents of the present utility model and technical characteristics have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and are done all replacement and modifications that does not deviate from the utility model spirit; therefore; the utility model protection domain should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present utility model and modifications, and contained by the present patent application claim.
Claims (6)
1.
A kind of shaft end seal device of centrifugal gas compressing equipment, it is characterized in that: described shaft end seal device comprises axle head annular gas seals and the rotating ring that is installed on the gas compressing equipment main shaft, described axle head annular gas seals has the endoporus that matches with described main shaft, described endoporus is provided with plural groove, described axle head annular gas seals and the adjacent end face of described rotating ring are provided with mounting groove, are filled with floating ring in the described mounting groove.
2. the shaft end seal device of centrifugal gas compressing equipment according to claim 1, it is characterized in that: described axle head annular gas seals has outer peripheral surface, described outer peripheral surface is concaved with teeth groove near an end place of rotating ring, the adjacent end face of described rotating ring and axle head annular gas seals has extended to form hermetic terminal, the teeth groove on the described axle head annular gas seals of sealing end part seal to a side of axle head annular gas seals.
3. the shaft end seal device of centrifugal gas compressing equipment according to claim 1 and 2, it is characterized in that: described axle head annular gas seals is to be fixedly connected on the housing of described gas compressing equipment.
4. the shaft end seal device of centrifugal gas compressing equipment according to claim 1, it is characterized in that: the described floating ring that is filled at mounting groove is made by resin composite materials.
5. the shaft end seal device of centrifugal gas compressing equipment according to claim 1, it is characterized in that: described plural groove is the comb teeth-shaped groove.
6. the shaft end seal device of centrifugal gas compressing equipment according to claim 1 is characterized in that: the end clearance cooperation of described rotating ring and described axle head annular gas seals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220127371 CN202646137U (en) | 2012-03-30 | 2012-03-30 | Shaft-end sealing device of centrifugal type gas compression equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220127371 CN202646137U (en) | 2012-03-30 | 2012-03-30 | Shaft-end sealing device of centrifugal type gas compression equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646137U true CN202646137U (en) | 2013-01-02 |
Family
ID=47415254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220127371 Expired - Fee Related CN202646137U (en) | 2012-03-30 | 2012-03-30 | Shaft-end sealing device of centrifugal type gas compression equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269576A (en) * | 2017-07-19 | 2017-10-20 | 天津中隧通风机有限公司 | The sealing device of centrifugal blower |
| CN114207287A (en) * | 2020-06-04 | 2022-03-18 | 株式会社大阪送风机制作所 | Blower fan |
-
2012
- 2012-03-30 CN CN 201220127371 patent/CN202646137U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269576A (en) * | 2017-07-19 | 2017-10-20 | 天津中隧通风机有限公司 | The sealing device of centrifugal blower |
| CN114207287A (en) * | 2020-06-04 | 2022-03-18 | 株式会社大阪送风机制作所 | Blower fan |
| CN114207287B (en) * | 2020-06-04 | 2024-05-14 | 株式会社大阪送风机制作所 | Blower fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20180330 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |