CN107664132A - A kind of blower wheel back seal structure - Google Patents
A kind of blower wheel back seal structure Download PDFInfo
- Publication number
- CN107664132A CN107664132A CN201711041094.7A CN201711041094A CN107664132A CN 107664132 A CN107664132 A CN 107664132A CN 201711041094 A CN201711041094 A CN 201711041094A CN 107664132 A CN107664132 A CN 107664132A
- Authority
- CN
- China
- Prior art keywords
- impeller
- seal
- motor
- spiral case
- air intake
- 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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D29/083—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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of blower wheel back seal structure, including impeller, seal receptacle, air intake duct, spiral case, diffuser and motor, the spiral case is fixed on the housing of motor, air intake duct is fixed on spiral case, and the inner chamber of air intake duct and the inner chamber of spiral case connect, and diffuser is in spiral case, impeller is in air intake duct, and impeller is fixedly connected with the rotating shaft of motor, seal receptacle is located between impeller and motor, and seal receptacle is fixedly connected with the housing of motor；The seal receptacle is provided with sealing ring, and seal groove is provided with the bottom surface of impeller, and sealing ring is stretched in seal groove.Also enough effective seal lengths are can guarantee that during rotor axial play, it is ensured that sealing effectiveness；According to axial force of impeller it needs to be determined that the position of sealing tooth, obtains rational axial force of impeller.
Description
Technical field：
The present invention relates to a kind of blower wheel back seal structure.
Background technology：
Impeller back seal is that sealing tooth is arranged at impeller back in existing air blower, using axial seal, or in master
Arrangement sealing tooth at axle, using radial seal, there is following defect in above-mentioned sealing structure：
1) when using axial seal, rotor axial play, seal clearance is caused to increase, sealing effectiveness is deteriorated；
2) when using radial seal, the axial force of impeller can not be adjusted.
The content of the invention：
The present invention is to provide a kind of blower wheel back seal knot to solve the above-mentioned problems of the prior art
Structure.
The technical solution adopted in the present invention has：A kind of blower wheel back seal structure, including impeller, seal receptacle,
Air intake duct, spiral case, diffuser and motor, the spiral case are fixed on the housing of motor, and air intake duct is fixed on spiral case, and air inlet
The inner chamber in road and the inner chamber of spiral case connect, and diffuser is in spiral case, and impeller is in air intake duct, and turn of impeller and motor
Axle is fixedly connected, and seal receptacle is located between impeller and motor, and seal receptacle is fixedly connected with the housing of motor；
The seal receptacle is provided with sealing ring, and seal groove is provided with the bottom surface of impeller, and sealing ring is stretched in seal groove.
Further, in the side wall of the sealing ring or seal groove inwall be provided with sealing tooth.
Further, the seal receptacle and sealing ring are integrally formed.
The present invention has the advantages that：
1) enough effective seal lengths are also can guarantee that during rotor axial play, it is ensured that sealing effectiveness；
2) according to axial force of impeller it needs to be determined that the position of sealing tooth, obtains rational axial force of impeller.
Brief description of the drawings：
Fig. 1 is structure chart of the present invention.
Fig. 2 is the sealed structure chart between impeller and seal receptacle in the present invention.
Fig. 3 is another sealed structure chart between impeller and seal receptacle in the present invention.
Embodiment：
The present invention is further illustrated below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the present invention discloses a kind of blower wheel back seal structure, including impeller 1, seal receptacle
4th, air intake duct 6, spiral case 7, diffuser 8 and motor 9, spiral case 7 are fixed on the housing of motor 9, and air intake duct 6 is fixed on spiral case 7,
And the inner chamber of air intake duct 6 and the inner chamber of spiral case 7 connect, diffuser 8 is in spiral case 7, and impeller 1 is in air intake duct 6, and leaf
Wheel 1 is fixedly connected with the rotating shaft of motor 9, and seal receptacle 4 is located between impeller 1 and motor 9, and the housing of seal receptacle 4 and motor 9 is consolidated
Fixed connection.
Sealing ring 2 is provided with seal receptacle 4, for ease of manufacture, seal receptacle 4 and sealing ring 2 are integrally formed.In impeller 1
Bottom surface is provided with seal groove 5, and sealing ring 2 is stretched in seal groove 5.
To be further ensured that sealing effectiveness, sealing tooth 3 is provided with the side wall of sealing ring 2.
In use, according to motor 9 turn axial movement value determine sealing ring 2, sealing tooth 3 and seal groove 5 axial dimension,
Even if rotor axial play, enough effective seal lengths are also can guarantee that.
Air pressure before sealing in impeller outlet is high, and the pressure of the working gas after sealing is low.Can root
Determine to seal distance a of the tooth 3 away from axis according to the needs of axial force of impeller, obtain the axial force of rational impeller.
For another form of the present invention to set sealing tooth 3 (such as Fig. 3) on the inwall of seal groove 5, sealing ring 2 inserts sealing
In groove 5 sealing structure is formed with sealing tooth 3.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (3)
- A kind of 1. blower wheel back seal structure, it is characterised in that：Including impeller (1), seal receptacle (4), air intake duct (6), Spiral case (7), diffuser (8) and motor (9), the spiral case (7) are fixed on the housing of motor (9), and air intake duct (6) is fixed on snail On shell (7), and the inner chamber of air intake duct (6) and the inner chamber of spiral case (7) connect, and diffuser (8) is in spiral case (7), impeller (1) In air intake duct (6), and impeller (1) is fixedly connected with the rotating shaft of motor (9), and seal receptacle (4) is located at impeller (1) and motor (9) between, and seal receptacle (4) is fixedly connected with the housing of motor (9)；The seal receptacle (4) is provided with sealing ring (2), and seal groove (5) is provided with the bottom surface of impeller (1), and sealing ring (2) stretches in In seal groove (5).
- 2. blower wheel back seal structure as claimed in claim 1, it is characterised in that：The side wall of the sealing ring (2) Upper or seal groove (5) inwall is provided with sealing tooth (3).
- 3. blower wheel back seal structure as claimed in claim 1, it is characterised in that：The seal receptacle (4) and sealing Ring (2) is integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041094.7A CN107664132A (en) | 2017-10-30 | 2017-10-30 | A kind of blower wheel back seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711041094.7A CN107664132A (en) | 2017-10-30 | 2017-10-30 | A kind of blower wheel back seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107664132A true CN107664132A (en) | 2018-02-06 |
Family
ID=61144708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711041094.7A Pending CN107664132A (en) | 2017-10-30 | 2017-10-30 | A kind of blower wheel back seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107664132A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701107A (en) * | 2019-10-28 | 2020-01-17 | 宜兴市融兴铸造有限公司 | Aluminum casting of suspension blower shell |
| CN111828393A (en) * | 2020-08-20 | 2020-10-27 | 新奥能源动力科技（上海）有限公司 | Diffuser, impeller and centrifugal compressor |
| CN112648227A (en) * | 2020-12-24 | 2021-04-13 | 亿昇(天津)科技有限公司 | Impeller and electric motor rotor's seal structure and fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010017179A (en) * | 1999-08-09 | 2001-03-05 | 구자홍 | Axial sealing structure for turbo compressor |
| CN2913692Y (en) * | 2006-01-13 | 2007-06-20 | 赵志强 | Centrifugal pump |
| CN104121225A (en) * | 2014-08-06 | 2014-10-29 | 南京磁谷科技有限公司 | Centrifugal blower with rotor axial force control device |
| CN204041526U (en) * | 2014-07-25 | 2014-12-24 | 上海瑞邦机械集团有限公司 | The dynamic sealing device of centrifugal pump |
| CN104806560A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Sealing part and centrifugal compressor |
| CN207420915U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of blower wheel back seal structure |
-
2017
- 2017-10-30 CN CN201711041094.7A patent/CN107664132A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010017179A (en) * | 1999-08-09 | 2001-03-05 | 구자홍 | Axial sealing structure for turbo compressor |
| CN2913692Y (en) * | 2006-01-13 | 2007-06-20 | 赵志强 | Centrifugal pump |
| CN104806560A (en) * | 2014-01-23 | 2015-07-29 | 珠海格力电器股份有限公司 | Sealing part and centrifugal compressor |
| CN204041526U (en) * | 2014-07-25 | 2014-12-24 | 上海瑞邦机械集团有限公司 | The dynamic sealing device of centrifugal pump |
| CN104121225A (en) * | 2014-08-06 | 2014-10-29 | 南京磁谷科技有限公司 | Centrifugal blower with rotor axial force control device |
| CN207420915U (en) * | 2017-10-30 | 2018-05-29 | 南京磁谷科技有限公司 | A kind of blower wheel back seal structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110701107A (en) * | 2019-10-28 | 2020-01-17 | 宜兴市融兴铸造有限公司 | Aluminum casting of suspension blower shell |
| CN111828393A (en) * | 2020-08-20 | 2020-10-27 | 新奥能源动力科技（上海）有限公司 | Diffuser, impeller and centrifugal compressor |
| CN112648227A (en) * | 2020-12-24 | 2021-04-13 | 亿昇(天津)科技有限公司 | Impeller and electric motor rotor's seal structure and fan |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination |