CN204253434U - High-temperature and high-pressure wearable pump half-opened impeller - Google Patents
High-temperature and high-pressure wearable pump half-opened impeller Download PDFInfo
- Publication number
- CN204253434U CN204253434U CN201420742485.7U CN201420742485U CN204253434U CN 204253434 U CN204253434 U CN 204253434U CN 201420742485 U CN201420742485 U CN 201420742485U CN 204253434 U CN204253434 U CN 204253434U
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- CN
- China
- Prior art keywords
- impeller
- outlet
- indent
- outlet port
- 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
The utility model discloses a kind of high-temperature and high-pressure wearable pump half-opened impeller, its structure characteristic is that impeller adopts semi-open type structure, only have back shroud and blade, do not have front shroud, and back shroud place is not with back of the body choma; The blade indent in the outlet port of impeller forms indent outlet.Adopt half-opened impeller, can balance a part of suction eye high pressure generation thrust backward, improve high hard material yield rate and cast difficulty with attenuating, axially one-sided gap is easy to adjust; Remove impeller back of the body choma can eliminate and produce the wearing and tearing of back of the body choma thus and cause and frequent change the shortcoming short with hydraulic performance decline, life-span.Impeller outlet forms indent outlet, impeller forms spill in outlet port, the speed at its cover plate place before and after impeller both sides is made to be greater than intermediate speed, slurry is divided into two fluids in outlet port, to central rotation, force particle to cause interior swirl shape to center flow, the concentration of both sides is reduced, thus alleviates the wearing and tearing of pump housing runner and two side.
Description
One, technical field
The utility model and mechanical engineering pump class technical field, specifically a kind of high-temperature and high-pressure wearable pump half-opened impeller.
Two, background technique
The impeller of current China high-temperature and high-pressure wearable centrifugal pump adopts double shrouded wheel mostly, impeller is with seal ring, this structure is unfavorable for the axial force balancing inlet high pressure generation, and owing to washing away by medium, corroding in gap, seal ring place, cause the seal ring life-span very short, if seal ring is damaged, will make a big impact to pump performance.Impeller outlet and housing serious wear simultaneously.
Three, summary of the invention
In order to overcome the deficiency of above-mentioned technology, the purpose of this utility model provides a kind of life-span that can extend pump component, carries high performance high-temperature and high-pressure wearable pump half-opened impeller.
Realize the utility model object, solving the technological scheme that its technical problem adopts is: this high-temperature and high-pressure wearable pump is primarily of the pump housing, stator, impeller, pump cover, pump shaft composition; The end winding support of pump shaft has impeller, and the pump housing that the suction inlet side of impeller is corresponding is fixed with stator, and pump cover is fixed on the pump housing; It is characterized in that impeller adopts semi-open type structure, only have back shroud and blade, there is no front shroud, and back shroud place is not with back of the body choma; The blade indent in the outlet port of impeller forms indent outlet.
The beneficial effects of the utility model are: adopt half-opened impeller, and can balance a part of suction eye high pressure generation thrust backward, improve high hard material yield rate and cast difficulty with attenuating, axially one-sided gap is easy to adjust; Remove impeller back of the body choma can eliminate and produce the wearing and tearing of back of the body choma thus and cause and frequent change the shortcoming short with hydraulic performance decline, life-span.Impeller outlet forms indent outlet, impeller forms spill in outlet port, the speed at its cover plate place before and after impeller both sides is made to be greater than intermediate speed, slurry is divided into two fluids in outlet port, to central rotation, force particle to cause interior swirl shape to center flow, the concentration of both sides is reduced, thus alleviates the wearing and tearing of pump housing runner and two side.
Four, accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the sectional structure chart of the utility model high-temperature and high-pressure wearable pump half-opened impeller.
In figure: 1. the pump housing, 2. stator, 3. impeller, 4. pump cover, 5. axle, 6. indent outlet
Five, embodiment
In the accompanying drawings, the utility model high-temperature and high-pressure wearable pump is primarily of the pump housing, stator, impeller, pump cover, pump shaft composition; The end winding support of pump shaft 5 has impeller 3, and the pump housing 1 that the suction inlet side of impeller 3 is corresponding is fixed with stator 2, and pump cover 4 is fixed on the pump housing 1; It is characterized in that impeller 3 adopts semi-open type structure, only have back shroud and blade, there is no front shroud, and back shroud place is not with back of the body choma; The blade indent in the outlet port of impeller forms indent outlet 6.Impeller adopts semi-open type structure, and this structure can reduce the wearing and tearing of fluid to part, anti-plugging, easy to clean after crystallization-preventive or crystallization, and the end thrust of oriented suction eye, can balance a part of axial force; The interruption-forming indent that goes out of impeller exports, what adopt is liquid in-flow structure, impeller forms spill in outlet port, make the slurry at its cover plate place before and after impeller both sides in outlet port to central rotation, swirl shape in being formed, the granule density of both sides is reduced, thus alleviates the wearing and tearing of pump housing runner and two side, extend the working life of pump.
Claims (1)
1. a high-temperature and high-pressure wearable pump half-opened impeller, is characterized in that: impeller (3) adopts semi-open type structure, only have back shroud and blade, do not have front shroud, and back shroud place is not with back of the body choma; The blade indent in the outlet port of impeller (3) forms indent outlet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742485.7U CN204253434U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump half-opened impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742485.7U CN204253434U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump half-opened impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253434U true CN204253434U (en) | 2015-04-08 |
Family
ID=52957747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742485.7U Expired - Fee Related CN204253434U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump half-opened impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151223A1 (en) * | 2022-02-11 | 2023-08-17 | 江苏大学 | Multi-stage semi-open centrifugal pump capable of reducing wear |
-
2014
- 2014-11-20 CN CN201420742485.7U patent/CN204253434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023151223A1 (en) * | 2022-02-11 | 2023-08-17 | 江苏大学 | Multi-stage semi-open centrifugal pump capable of reducing wear |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20171120 |