CN2541637Y - Orifice ring self-compensating constant gap sealing structure of centrifugal pump - Google Patents
Orifice ring self-compensating constant gap sealing structure of centrifugal pump Download PDFInfo
- Publication number
- CN2541637Y CN2541637Y CN 02230869 CN02230869U CN2541637Y CN 2541637 Y CN2541637 Y CN 2541637Y CN 02230869 CN02230869 CN 02230869 CN 02230869 U CN02230869 U CN 02230869U CN 2541637 Y CN2541637 Y CN 2541637Y
- Authority
- CN
- China
- Prior art keywords
- ring
- opening ring
- sealing opening
- seal
- centrifugal pump
- 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
A self-compensating and constant slit seal structure of a centrifugal pump buccal ring relates to a centrifugal pump seal structure. The defects of the prior art which are that a blade wheel and a seal buccal ring are coordinated with each other forcefully leading to gradual increasing of the abrasion of the blade wheel and the seal buccal ring, and the self-compensating aiming to keep the original constant slit leading to the seal effect is not achieved are settled down by the utility model. The technical project is that the utility model comprises a blade wheel body with a limit edge of the seal buccal ring which is installed on the outer wall of a suction inlet end of a water pump shaft and the seal buccal ring which is fixed on the inner wall of the water pump shell, wherein the seal buccal ring is a rubber seal buccal ring which is coordinated with the limit edge of the seal opening ring.
Description
Technical field
The utility model relates to the pump technology field, particularly relates to a kind of centrifugal pump sealing configuration.
Background technique
The impeller of Centrifugal water pump and sealing opening ring are a pair of components, existing parts material all adopts metal, be hard the cooperation each other, impeller is installed on the rotatingshaft of water pump, sealing opening ring is fixed on the water pump shell inwall, leave 0.02～0.04 mm clearance between impeller and the sealing opening ring, liquid refluxes to prime during with the prevention wheel rotation, realizes the sealing between the forward and backward level of water pump.Because the gap between impeller and the sealing opening ring is very little, when shaft concentricity and impeller high speed rotating generation deviation, the matching part of impeller and sealing opening ring rubs mutually, and it is very fast to wear and tear, when the gap between impeller and the sealing opening ring increases, the leakage of fluid increases, the impeller end thrust increases, and causes pump efficiency to descend, until not running well, therefore, the replacing parts are frequent.For solving above-mentioned existence deficiency, number of patent application has the technical solution of the relative wear-resistant alloy layer of one deck on impeller body and position that the water pump packing choma matches surfacing is provided in 93228631.3 the patent application, a kind of water pump packing structure of moving in silt water of being suitable for is provided in the patent application of number of patent application 93219905.4, its sealing opening ring is formed by encircling in a ring seat and one, interior ring is with ultra-high molecular weight polyethylene or modified ultra-high molecular weight polyethylene manufacturing, with the wear resistance of further raising impeller body and water pump packing choma.The technical solution that provides in above-mentioned two patent applications is not all changing between parts under the mutually hard mated condition, the wear resistance at the position of matching by improving parts reduces wear, improve sealing effect, but its deficiency that all exists is because the wearing and tearing at the position of matching of parts are inevitable, gap between impeller and the sealing opening ring always increases and constantly increases with the degree of wearing and tearing, can not self compensation keep original constant clearance, reach sealing effect.
The model utility content
The technical problems to be solved in the utility model is that the impeller that exists of prior art and sealing opening ring cooperate firmly each other and produce gap between impeller and the sealing opening ring and constantly increase and constantly increase with the degree of wearing and tearing, can not self compensation keep original constant clearance, reach the deficiency of sealing effect.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: it is made up of with the sealing opening ring that is fixed on water pump shell inwall the impeller body on the spacing edge of sealing opening ring the suction port end outer wall that is installed on the water pump spindle, and described sealing opening ring is that the rubber seal choma is spacing along cooperating with described sealing opening ring.The spacing edge of described sealing opening ring can be loudspeaker outer side wall shape, also can be shelves edge, right angle.
The utility model is compared with the prior art because sealing opening ring is designed to the rubber seal choma, impeller and sealing opening ring are soft resilient engagement each other, its beneficial effect is that the gap between impeller and the sealing opening ring is constant with the degree increase of component wear, can self compensation wear and tear under pressure, and keep original constant clearance, reach sealing effect, and do not need frequently to change parts.
Description of drawings
Structural representation when Fig. 1 is loudspeaker outer side wall shape for a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration on the spacing edge of impeller body sealing opening ring;
Fig. 2 for a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration be the right angle shelves on the spacing edge of impeller body sealing opening ring along the time structural representation.
Embodiment
Provide the utility model most preferred embodiment below in conjunction with accompanying drawing: it is made up of an embodiment who provides among Fig. 1 with the sealing opening ring 3 that is fixed on water pump shell inwall the spacing impeller body 2 along 1 of sealing opening ring the suction port end outer wall that is installed on the water pump spindle, sealing opening ring 3 is the abrasive rubber sealing opening ring, sealing opening ring is spacing to be loudspeaker outer side wall shape along 1, sealing opening ring 3 external annulus have annular groove, and sealing opening ring 3 cooperates along 1 with sealing opening ring is spacing.Another embodiment that Fig. 2 provides be sealing opening ring spacing along 1 for the right angle shelves along the situations of situation.Impeller body 2 materials are HT or QT, and sealing opening ring 3 materials are abrasive rubber.Produce thrust from the high pressure water in the water pump pump chamber during use, it is spacing along 1 to push sealing opening ring 3 to sealing opening ring, because sealing opening ring 3 is the resilient flexible material, compensates constant clearance automatically with spacing can the guaranteeing the quality along 1 of sealing opening ring.The utility model structure also can be applicable to the sealing of axle with the pump housing of the water pump vane suction port the other end.
Claims (5)
1, a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration, it is made up of with the sealing opening ring that is fixed on water pump shell inwall the impeller body on the spacing edge of sealing opening ring the suction port end outer wall that is installed on the water pump spindle, it is characterized in that: described sealing opening ring is that the rubber seal choma is spacing along cooperating with described sealing opening ring.
2, a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration according to claim 1, it is characterized in that: the spacing edge of described sealing opening ring is a loudspeaker outer side wall shape.
3, a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration according to claim 1, it is characterized in that: the spacing edge of described sealing opening ring is shelves edge, right angle.
4, a kind of centrifugal pump mouth ring self compensation constant clearance sealing configuration according to claim 1, it is characterized in that: described sealing opening ring is the abrasive rubber sealing opening ring.
5, according to claim 1,2,3,4 described a kind of centrifugal pump mouth ring self compensation constant clearance sealing configurations, it is characterized in that: described sealing opening ring external annulus has annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02230869 CN2541637Y (en) | 2002-04-09 | 2002-04-09 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02230869 CN2541637Y (en) | 2002-04-09 | 2002-04-09 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541637Y true CN2541637Y (en) | 2003-03-26 |
Family
ID=33706717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02230869 Expired - Fee Related CN2541637Y (en) | 2002-04-09 | 2002-04-09 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541637Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588328A (en) * | 2012-03-16 | 2012-07-18 | 广东凌霄泵业股份有限公司 | Centrifugal pump |
| CN103717839A (en) * | 2011-07-26 | 2014-04-09 | 诺沃皮尼奥内有限公司 | Centrifugal impeller and turbomachine |
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| CN104405645A (en) * | 2014-10-16 | 2015-03-11 | 中国北方发动机研究所(天津) | High-efficiency centrifugal water pump |
| CN107100885A (en) * | 2017-05-19 | 2017-08-29 | 利欧集团浙江泵业有限公司 | A kind of self-adapting seal part |
| CN110185652A (en) * | 2019-06-18 | 2019-08-30 | 泰州市罡阳喷灌机有限公司 | A kind of wear-resisting choma production method of liquid-ring type self priming pump |
-
2002
- 2002-04-09 CN CN 02230869 patent/CN2541637Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103717839A (en) * | 2011-07-26 | 2014-04-09 | 诺沃皮尼奥内有限公司 | Centrifugal impeller and turbomachine |
| CN103717839B (en) * | 2011-07-26 | 2016-04-13 | 诺沃皮尼奥内有限公司 | Centrifugal impeller and centrifugal turbo machine |
| US9567864B2 (en) | 2011-07-26 | 2017-02-14 | Nuovo Pignone Spa | Centrifugal impeller and turbomachine |
| CN102588328A (en) * | 2012-03-16 | 2012-07-18 | 广东凌霄泵业股份有限公司 | Centrifugal pump |
| CN104235053A (en) * | 2014-08-22 | 2014-12-24 | 中国北方发动机研究所 | High-efficiency and low-specific speed centrifugal water pump |
| CN104405645A (en) * | 2014-10-16 | 2015-03-11 | 中国北方发动机研究所(天津) | High-efficiency centrifugal water pump |
| CN107100885A (en) * | 2017-05-19 | 2017-08-29 | 利欧集团浙江泵业有限公司 | A kind of self-adapting seal part |
| CN110185652A (en) * | 2019-06-18 | 2019-08-30 | 泰州市罡阳喷灌机有限公司 | A kind of wear-resisting choma production method of liquid-ring type self priming pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |