CN201836101U - Combination sealing structure of space guide vane type submerged pump - Google Patents
Combination sealing structure of space guide vane type submerged pump Download PDFInfo
- Publication number
- CN201836101U CN201836101U CN201020571923XU CN201020571923U CN201836101U CN 201836101 U CN201836101 U CN 201836101U CN 201020571923X U CN201020571923X U CN 201020571923XU CN 201020571923 U CN201020571923 U CN 201020571923U CN 201836101 U CN201836101 U CN 201836101U
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- CN
- China
- Prior art keywords
- pump shaft
- impeller
- blade body
- guide vane
- guide blade
- 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 - Lifetime
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Abstract
A combination sealing structure of a space guide vane type submerged pump is provided with a pump shaft. a connecting pipe assembly, a space guide vane body with a cavity, and an impeller are arranged along the pump shaft from top to bottom in sequence; a bearing block is arranged at the upper end of the connecting pipe assembly and is connected together with the upper end of the pump shaft by a bearing on the bearing block, the space guide vane body is fixedly connected with the connecting pipe assembly, the impeller is fixed at the lower end of the pump shaft, and the impeller and the space guide vane body are sealed by a sealing ring. The combination sealing structure is characterized in that the impeller is provided with a through hole along the axial direction of the pump shaft, the through hole is communicated with the cavity in the space guide vane body, and a self-balance mechanism seal with an inner flowing type single end surface, and a multi-framework type oil seal are arranged in the space between the guide vane body and the pump shaft along the pump shaft from the bottom to the top in sequence, and an O-shaped sealing ring is arranged between the bearing block and the space guide vane body. According to the combination sealing structure, the rising pressure of liquid along the shaft is reduced, liquid is effectively prevented from entering the bearing block, and the purpose of protecting the bearing so as to prolong the service life is achieved.
Description
Technical field
The utility model is specifically related to a kind of combined sealing structure of spatial guide blade body formula Under Water Pumps.
Background technique
Existing multistage long shaft submerged pump, its main structure is: comprise pump cover, spatial guide blade body (pump housing portion), impeller, pump shaft, connecting tube assembly, pillar, bearing block assembly, bearing unit, fastener assembly, outside framework oil seal assembly and mechanical sealing assembly.Wherein spatial guide blade body and first order bearing support and bearing are positioned under the liquid level, motor places the top on the liquid level, the spatial guide blade body is connected by connecting tube, pillar and bearing support with motor, pump shaft is loaded in the middle of the pillar and can be rotated by driven by motor, and finally is transmitted on the impeller of the inner axle head of spatial guide blade body.
The foot of pump is the pump cover of band suction port formula, and liquid enters through the pump cover suction port, through the wheel rotation work done, makes liquid passage and realize the conveying of liquid through between spatial guide blade body, connecting tube and pillar wall.
Because spatial guide blade body and bottom end bearing seat are immersed under the liquid level for a long time, make that the interior bearing of bearing support is very easily destroyed because of intrusion, the corrosion of liquid, influence the proper functioning and the working life of bearing and pump.
Summary of the invention
The utility model provides a kind of combined sealing structure of spatial guide blade body formula Under Water Pumps; purpose is to solve the prior art problem; provide a kind of effective prevention liquid to enter bearing support, reach the combined sealing structure of the Under Water Pumps of protection bearing and then guarantor's breath bearing and pump stable operation, life-saving.
The utility model technological scheme that adopts of dealing with problems is:
A kind of combined sealing structure of spatial guide blade body formula Under Water Pumps has pump shaft, is provided with the connecting tube assembly from top to bottom successively, has the spatial guide blade body and the impeller of cavity along pump shaft.Connecting tube assembly upper end is provided with bearing support, and link together by being located at bearing on the bearing support and pump shaft upper end, spatial guide blade body and connecting tube assembly are fixed together, and impeller is fixed on the pump shaft lower end, and pass through seal ring seal between impeller and the spatial guide blade body.Axial direction at impeller upper edge pump shaft offers through hole, and the cavity in this through hole and the spatial guide blade body is connected; Between spatial guide blade body and pump shaft, be provided with in-flow single end face self-balancing mechanical sealing, multiple skeleton oil sealing from top to bottom successively, be provided with O-ring seals between bearing support and the spatial guide blade body along pump shaft.
The beneficial effects of the utility model: in the utility model, impeller equilibrium reflux hole has the balance impeller and reduces the fluid pressure effect of mechanical seal chamber.In-flow single end face self-balancing mechanical sealing make full use of self-equilibrium characteristic effectively retainer shaft sealing and reduce the intrusion of liquid slag thing simultaneously, and not influenced by a sense of rotation; The design of multiple outside framework oil seal in pump top and O-ring seals can and possible soaked leakage and seals along axle is residual structure interval, thereby has effectively stoped the etch of liquid in bearing support.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
The combined sealing structure of a kind of spatial guide blade body formula Under Water Pumps as shown in fig. 1 has pump shaft 1, is provided with connecting tube assembly 2 from top to bottom successively, has the spatial guide blade body 3 and the impeller 4 of cavity along pump shaft 1.Connecting tube assembly 2 upper ends are provided with bearing support 5, and link together with pump shaft 1 upper end by the bearing of being located on the bearing support 56, spatial guide blade body 3 is fixed together with connecting tube assembly 2, and impeller 4 is fixed on pump shaft 1 lower end, and seals by seal ring 7 between impeller 4 and the spatial guide blade body 3.Axial direction at impeller 4 upper edge pump shafts 1 offers through hole, i.e. impeller equilibrium reflux hole 8, and the cavity 30 in this through hole and the spatial guide blade body 3 is connected.Between spatial guide blade body 3 and pump shaft 1, be provided with in-flow single end face self-balancing mechanical sealing 9, multiple skeleton oil sealing 10 from top to bottom successively, be provided with O-ring seals 11 between bearing support 5 and the spatial guide blade body 3 along pump shaft 1.
In the utility model, impeller equilibrium reflux hole 8 has the balance impeller and reduces the fluid pressure effect of mechanical seal chamber.In-flow single end face self-balancing mechanical sealing 9 make full use of self-equilibrium characteristic effectively retainer shaft sealing and reduce the intrusion of liquid slag thing simultaneously, and not influenced by a sense of rotation; The design of multiple outside framework oil seal 10 in pump top and O-ring seals 11 can and possible soaked leakage and seals along axle is residual structure interval, thereby has effectively stoped the etch of liquid in bearing support 5.
In sum; the combined sealing structure of the utility model middle period samsara mobile equilibrium hole, self-balancing mechanical sealing, multiple outside framework oil seal and O-ring seals; can realize reducing liquid along the axle unlifting pressure; effectively stop liquid to enter bearing support, reach the purpose of protection bearing and then guarantor's breath bearing and pump stable operation, life-saving.
Claims (1)
1. the combined sealing structure of a spatial guide blade body formula Under Water Pumps has pump shaft, is provided with the connecting tube assembly from top to bottom successively, has the spatial guide blade body and the impeller of cavity along pump shaft; Connecting tube assembly upper end is provided with bearing support, and link together by being located at bearing on the bearing support and pump shaft upper end, spatial guide blade body and connecting tube assembly are fixed together, impeller is fixed on the pump shaft lower end, and pass through seal ring seal between impeller and the spatial guide blade body, it is characterized in that: the axial direction at impeller upper edge pump shaft offers through hole, and the cavity in this through hole and the spatial guide blade body is connected; Between spatial guide blade body and pump shaft, be provided with in-flow single end face self-balancing mechanical sealing, multiple skeleton oil sealing from top to bottom successively, be provided with O-ring seals between bearing support and the spatial guide blade body along pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571923XU CN201836101U (en) | 2010-10-22 | 2010-10-22 | Combination sealing structure of space guide vane type submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020571923XU CN201836101U (en) | 2010-10-22 | 2010-10-22 | Combination sealing structure of space guide vane type submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836101U true CN201836101U (en) | 2011-05-18 |
Family
ID=44006206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020571923XU Expired - Lifetime CN201836101U (en) | 2010-10-22 | 2010-10-22 | Combination sealing structure of space guide vane type submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836101U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850947A (en) * | 2012-11-29 | 2014-06-11 | 上海凯士比泵有限公司 | Anti-cavitation vane pump |
| CN104963897A (en) * | 2015-07-07 | 2015-10-07 | 湖南南方长河泵业有限公司 | New space guide blade device used for vertical installation of long-shaft pump |
| CN105715560A (en) * | 2016-03-28 | 2016-06-29 | 武汉船用机械有限责任公司 | Pump head device of deep well pump |
| CN106917751A (en) * | 2017-04-01 | 2017-07-04 | 江苏飞跃机泵集团有限公司 | A kind of self-balancing blade wheel structure |
| CN110081018A (en) * | 2019-05-23 | 2019-08-02 | 湖南机电职业技术学院 | Assembled guide vane formula pump |
| CN110094334A (en) * | 2018-01-28 | 2019-08-06 | 吴军 | A kind of submerged pump pump body mounting structure |
-
2010
- 2010-10-22 CN CN201020571923XU patent/CN201836101U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850947A (en) * | 2012-11-29 | 2014-06-11 | 上海凯士比泵有限公司 | Anti-cavitation vane pump |
| CN103850947B (en) * | 2012-11-29 | 2017-03-08 | 上海凯士比泵有限公司 | A kind of anti-cavitation vane pump |
| CN104963897A (en) * | 2015-07-07 | 2015-10-07 | 湖南南方长河泵业有限公司 | New space guide blade device used for vertical installation of long-shaft pump |
| CN105715560A (en) * | 2016-03-28 | 2016-06-29 | 武汉船用机械有限责任公司 | Pump head device of deep well pump |
| CN105715560B (en) * | 2016-03-28 | 2018-02-13 | 武汉船用机械有限责任公司 | A kind of pump head device of deep well pump |
| CN106917751A (en) * | 2017-04-01 | 2017-07-04 | 江苏飞跃机泵集团有限公司 | A kind of self-balancing blade wheel structure |
| CN110094334A (en) * | 2018-01-28 | 2019-08-06 | 吴军 | A kind of submerged pump pump body mounting structure |
| CN110081018A (en) * | 2019-05-23 | 2019-08-02 | 湖南机电职业技术学院 | Assembled guide vane formula pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110518 |
|
| CX01 | Expiry of patent term |