CN201751587U - Sealing device for centrifugal pump impeller wear ring - Google Patents
Sealing device for centrifugal pump impeller wear ring Download PDFInfo
- Publication number
- CN201751587U CN201751587U CN2010202255271U CN201020225527U CN201751587U CN 201751587 U CN201751587 U CN 201751587U CN 2010202255271 U CN2010202255271 U CN 2010202255271U CN 201020225527 U CN201020225527 U CN 201020225527U CN 201751587 U CN201751587 U CN 201751587U
- Authority
- CN
- China
- Prior art keywords
- seal section
- wear ring
- impeller
- labyrinth seal
- port ring
- 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
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Abstract
The utility model relates to a sealing device for a centrifugal pump impeller wear ring, comprising a shell wear ring and an impeller wear ring, wherein the shell wear ring comprises shell wear ring straight sealing sections and shell wear ring labyrinth sealing sections, which are positioned at different step surfaces; the impeller wear ring comprises impeller wear ring straight sealing sections and impeller wear ring labyrinth sealing sections, which are positioned at different step surfaces; the shell wear ring straight sealing sections and impeller wear ring labyrinth sealing sections are matched to form a labyrinth seal; and the shell wear ring labyrinth sealing sections and the impeller wear ring straight sealing sections are matched to form a labyrinth seal. With the utility model, the technical problems of large leakage amount and slightly low volumetric efficiency of the wear ring of the centrifugal pump are solved, the sealing effect between the shell wear ring and the impeller wear ring is improved, the leakage amount is decreased, and the volumetric efficiency of the centrifugal pump is improved.
Description
Technical field
The utility model relates to a kind of centrifugal pump impeller mouth ring sealing device.
Background technique
Existing centrifugal pump impeller choma adopts straight control ring seal, and resistance is little, amount of leakage is big, sealing effect is poor, thereby causes the volumetric efficiency of pump on the low side.
Summary of the invention
In order to solve the technical problem that the centrifugal pump mouth ring leakage rate is big, volumetric efficiency is on the low side, the utility model provides a kind of centrifugal pump impeller mouth ring sealing device.
Technical solution of the present utility model:
A kind of centrifugal pump impeller mouth ring sealing device, comprise housing choma 1 and impeller port ring 2, its special way is: described housing choma 1 comprises straight seal section 12 of the housing choma that is positioned at different step surfaces and housing choma labyrinth seal section 11, described impeller port ring 2 comprises straight seal section 22 of the impeller port ring that is positioned at different step surfaces and impeller port ring labyrinth seal section 21, straight seal section 12 of described housing choma and impeller port ring labyrinth seal section 21 cooperate the formation labyrinth seal, and the straight seal section 22 of described housing choma labyrinth seal section 11 and impeller port ring cooperates the formation labyrinth seals.
Be provided with axial air gap between the end face of above-mentioned housing choma labyrinth seal section 11 and the end face of impeller port ring labyrinth seal section 21, the straight seal section 22 of straight seal section 12 of described axial air gap and housing choma and impeller port ring constitutes relief chamber 3.
Advantage of the present utility model:
1, the utility model is divided into straight seal section 12 of housing choma and housing choma labyrinth seal section 11 with housing choma 1, impeller port ring 2 is divided into straight seal section 22 of impeller port ring and impeller port ring labyrinth seal section 21, and the straight seal section 12 of housing choma cooperates the formation labyrinth seal with impeller port ring labyrinth seal section 21 and housing choma labyrinth seal section 11 respectively with the straight seal section 22 of impeller port ring on different step surfaces, being equivalent to form two labyrinth seals and one turns round, increase the flow resistance of liquid, improved the sealing effect between housing choma and the impeller port ring.
2, the utility model is provided with axial air gap between the end face of the end face of housing choma labyrinth seal section 11 and impeller port ring labyrinth seal section 21, make the space between straight seal section 12 of axial air gap and housing choma and the straight seal section 22 of impeller port ring form relief chamber 3, make the liquid that flows through labyrinth seal between straight seal section 12 of housing choma and the impeller port ring labyrinth seal section 21 produce divergence loss in the space herein, reduce pressure, thereby it is more difficult by the labyrinth seal between housing choma labyrinth seal section 11 and the straight seal section 22 of impeller port ring, reduce leakage rate, reached better sealing effect.
3, the utility model does not need to reduce significantly the internal diameter of impeller port ring or the external diameter of increase housing choma, just just can significantly reduce the leakage rate of impeller port ring under the situation that centrifugal pump mouth ring is done to change slightly, improve the sealing effect of impeller, thereby improved the volumetric efficiency of centrifugal pump.
Description of drawings
Fig. 1 is the structural representation of centrifugal pump;
Fig. 2 is the structural representation of A part among Fig. 1, the structural representation of centrifugal pump impeller mouth ring sealing device promptly of the present utility model:
Wherein: 1-housing choma, 11-housing choma labyrinth seal section, the straight seal section of 12-housing choma, 2-impeller port ring, 21-impeller port ring labyrinth seal section, the straight seal section of 22-impeller port ring, 3-relief chamber, 4-impeller, 5-housing.
Embodiment
As depicted in figs. 1 and 2, a kind of centrifugal pump impeller mouth ring sealing device, comprise housing choma 1 and impeller port ring 2, housing choma 1 comprises straight seal section 12 of the housing choma that is positioned at different step surfaces and housing choma labyrinth seal section 11, impeller port ring 2 comprises straight seal section 22 of the impeller port ring that is positioned at different step surfaces and impeller port ring labyrinth seal section 21, straight seal section 12 of housing choma and impeller port ring labyrinth seal section 21 cooperate the formation labyrinth seal, and the straight seal section 22 of housing choma labyrinth seal section 11 and impeller port ring cooperates the formation labyrinth seals.Be equivalent to form two labyrinth seals and one and turn round, increased the flow resistance of liquid, improved the sealing effect between housing choma and the impeller port ring.
Also can be provided with axial air gap between the end face of housing choma labyrinth seal section 11 and the end face of impeller port ring labyrinth seal section 21, the straight seal section 22 of straight seal section 12 of axial air gap and housing choma and impeller port ring constitutes relief chamber 3, make the liquid that flows through labyrinth seal between straight seal section 12 of housing choma and the impeller port ring labyrinth seal section 21 produce divergence loss in the space herein, reduce pressure, thereby it is more difficult by the labyrinth seal between housing choma labyrinth seal section 11 and the straight seal section 22 of impeller port ring, reduce leakage rate, reached better sealing effect.
Claims (2)
1. centrifugal pump impeller mouth ring sealing device, comprise housing choma (1) and impeller port ring (2), it is characterized in that: described housing choma (1) comprises straight seal section 12 of the housing choma that is positioned at different step surfaces and housing choma labyrinth seal section (11), described impeller port ring (2) comprises straight seal section of the impeller port ring that is positioned at different step surfaces (22) and impeller port ring labyrinth seal section (21), straight seal section of described housing choma (12) and impeller port ring labyrinth seal section (21) cooperate the formation labyrinth seal, and described housing choma labyrinth seal section (11) and the straight seal section of impeller port ring (22) cooperate the formation labyrinth seal.
2. centrifugal pump impeller mouth ring sealing device according to claim 1, it is characterized in that: be provided with axial air gap between the end face of the end face of described housing choma labyrinth seal section (11) and impeller port ring labyrinth seal section (21), described axial air gap and the straight seal section of housing choma (12) and the straight seal section of impeller port ring (22) constitute relief chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202255271U CN201751587U (en) | 2010-06-13 | 2010-06-13 | Sealing device for centrifugal pump impeller wear ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202255271U CN201751587U (en) | 2010-06-13 | 2010-06-13 | Sealing device for centrifugal pump impeller wear ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201751587U true CN201751587U (en) | 2011-02-23 |
Family
ID=43601994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202255271U Expired - Fee Related CN201751587U (en) | 2010-06-13 | 2010-06-13 | Sealing device for centrifugal pump impeller wear ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201751587U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412651A (en) * | 2011-08-13 | 2012-04-11 | 无锡杰尔压缩机有限公司 | Oil seal structure used in high speed motor |
| CN102518680A (en) * | 2011-12-15 | 2012-06-27 | 西安航天泵业有限公司 | Split bearing bush seat type sliding bearing tank |
| CN103216462A (en) * | 2012-01-20 | 2013-07-24 | 乌鲁木齐金穗剑技术开发有限公司 | Pump port structure |
| CN103362854A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | Centrifugal compressor |
| CN104154027A (en) * | 2014-08-08 | 2014-11-19 | 江苏海狮泵业制造有限公司 | Nuclear power chemical vessel make-up pump with high hydraulic component symmetric arrangement reliability |
| CN105485049A (en) * | 2015-12-30 | 2016-04-13 | 浙江理工大学 | Steady-flow centrifugal pump and design method thereof |
| CN106438449A (en) * | 2016-10-12 | 2017-02-22 | 浙江远邦流体科技有限公司 | Seal assembly for centrifugal pump and centrifugal pump |
| CN112066116A (en) * | 2020-09-17 | 2020-12-11 | 西安航天动力研究所 | Spherical sealing joint for hydraulic test of turbopump of liquid rocket engine |
-
2010
- 2010-06-13 CN CN2010202255271U patent/CN201751587U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412651A (en) * | 2011-08-13 | 2012-04-11 | 无锡杰尔压缩机有限公司 | Oil seal structure used in high speed motor |
| CN102518680A (en) * | 2011-12-15 | 2012-06-27 | 西安航天泵业有限公司 | Split bearing bush seat type sliding bearing tank |
| CN103216462A (en) * | 2012-01-20 | 2013-07-24 | 乌鲁木齐金穗剑技术开发有限公司 | Pump port structure |
| CN103362854A (en) * | 2012-04-02 | 2013-10-23 | 珠海格力电器股份有限公司 | Centrifugal compressor |
| CN103362854B (en) * | 2012-04-02 | 2016-06-08 | 珠海格力电器股份有限公司 | A kind of centrifugal compressor |
| CN104154027A (en) * | 2014-08-08 | 2014-11-19 | 江苏海狮泵业制造有限公司 | Nuclear power chemical vessel make-up pump with high hydraulic component symmetric arrangement reliability |
| CN105485049A (en) * | 2015-12-30 | 2016-04-13 | 浙江理工大学 | Steady-flow centrifugal pump and design method thereof |
| CN105485049B (en) * | 2015-12-30 | 2017-12-15 | 浙江理工大学 | A kind of current stabilization centrifugal pump and its design method |
| CN106438449A (en) * | 2016-10-12 | 2017-02-22 | 浙江远邦流体科技有限公司 | Seal assembly for centrifugal pump and centrifugal pump |
| CN106438449B (en) * | 2016-10-12 | 2019-08-02 | 浙江远邦流体科技有限公司 | Seal assembly and centrifugal pump for centrifugal pump |
| CN112066116A (en) * | 2020-09-17 | 2020-12-11 | 西安航天动力研究所 | Spherical sealing joint for hydraulic test of turbopump of liquid rocket engine |
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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: 20110223 Termination date: 20140613 |
|
| EXPY | Termination of patent right or utility model |