CN204253452U - High-temperature and high-pressure wearable pump - Google Patents
High-temperature and high-pressure wearable pump Download PDFInfo
- Publication number
- CN204253452U CN204253452U CN201420742483.8U CN201420742483U CN204253452U CN 204253452 U CN204253452 U CN 204253452U CN 201420742483 U CN201420742483 U CN 201420742483U CN 204253452 U CN204253452 U CN 204253452U
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- CN
- China
- Prior art keywords
- impeller
- stator
- pump
- pump housing
- diffuser
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of high-temperature and high-pressure wearable pump, this pump structure feature is that the inlet side of the pump housing loads stator diffuser, and stator diffuser is fixed on the pump housing by the stop pin preventing stator diffuser from rotating; Pump housing runner adopts ring runner; Described impeller is the half-opened impeller be made up of back shroud, stator, and the stator indent in the outlet port of impeller forms indent outlet.Stator diffuser arranges and balances runner inside and outside differential pressure, enhances wear resistance, is convenient to maintenance and changes, extending pump housing working life; Half-opened impeller can balance the end thrust of suction port, 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.In a word, solve the pressure-bearing of high-temperature and high-pressure wearable pump in high suction pressure and condition of high temperature lower shell body and sealing, and flow passage components serious wear, working life the short problem with hydraulic performance decline.
Description
One, technical field
The utility model relates to mechanical engineering pump class technical field, is specifically a kind of high-temperature and high-pressure wearable pump.
Two, background technique
High-temperature and high-pressure wearable centrifugal pump is specific area and device pump---for coal gasification apparatus, this series pump application operating mode is harsh, requires that high temperature high voltage resistant is wear-resisting.High-temperature and high-pressure wearable pump intake pressure is large, and Seal cage pressure is high and containing impurity, sealing wear is serious, and high temperature causes that Seal cage temperature is too high, sealing liquid stickiness declines, it is degrading to cause, impact sealing service life, and the machine envelope life-span is short; Axial force is large, occurs bearing end bolt fracture or bearing working life is short, bearing heating; Overcurrent part is because flow stream velocity is high, in liquid containing solid particle, and wash away parts such as impeller, pump case, liner plates, especially impeller outlet and spiral case wash away seriously, and working life is short, and the wearing and tearing of impeller and sealing obviously aggravate along with the increase of rotating speed; Containing corrosive elements in medium, corrosive wear is produced to flow passage components; Several reason causes high-temperature and high-pressure wearable pump short for working life, Frequent Troubles.
Three, summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of high-temperature and high-pressure wearable pump.
The technological scheme realizing the purpose of this utility model employing is: this high-temperature and high-pressure wearable pump is formed primarily of the pump housing, impeller, guide plate, liner plate, stator diffuser, pump cover, pump shaft; The tail end of pump shaft is fixed with impeller, the pump cover at impeller back is fixed with liner plate and guide plate; It is characterized in that the inlet side of the described pump housing loads stator diffuser, stator diffuser is fixed on the pump housing by the stop pin preventing stator diffuser from rotating; Pump housing runner adopts ring runner; Described impeller is the half-opened impeller be made up of back shroud, stator, and the stator indent in the outlet port of impeller forms indent outlet; After impeller is corresponding by centering with stator diffuser, the corresponding surface of front end formation of stator and the working surface of stator diffuser form the gap of 0.5mm.
The utility model high-temperature and high-pressure wearable pump advantage compared with prior art: stator diffuser is as housing portion in the pump housing, its impact containing solid-liquid stream, wearing and tearing are all within it carried out, inside and outside runner, pressure-bearing pressure reduction is little, life-span is relatively long, even if wearing and tearing cause hydraulic performance decline not change the pump housing, as long as change stator diffuser can repair, easy to maintenance, reduce maintenance cost; Ring runner coordinates with stator diffuser, can balance the balanced radial force of the overwhelming majority, and pressure conversion is carried out in stator diffuser, ring runner outlet just water conservancy diversion and pressure-bearing and thermal distortion is even; Impeller adopts half-opened impeller, can balance the end thrust of a part of suction port; 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, particle is forced 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.In a word, solve the pressure-bearing of high-temperature and high-pressure wearable pump in high suction pressure and condition of high temperature lower shell body and sealing, and flow passage components serious wear, working life the short problem with hydraulic performance decline.
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.
In the drawings: 1, the pump housing, 2, guide plate, 3, impeller, 4, liner plate, 5, stator diffuser, 6, ring runner, 7, stop pin, 8, indent outlet, 9, pump cover, 10, pump shaft.
Five, embodiment
In the accompanying drawings, the utility model high-temperature and high-pressure wearable pump is formed primarily of the pump housing, impeller, guide plate, liner plate, stator diffuser, pump cover, pump shaft; The tail end of pump shaft 10 is fixed with impeller 3, the pump cover at impeller 3 back is fixed with liner plate 4 and guide plate 2; It is characterized in that the inlet side of the described pump housing 1 loads stator diffuser 5, stator diffuser is fixed on the pump housing 1 by the stop pin 7 preventing stator diffuser 5 from rotating; The pump housing 1 runner adopts ring runner 6; Described impeller 3 is the half-opened impeller be made up of back shroud, stator, and the stator indent in the outlet port of impeller 3 forms indent outlet 8; After impeller 3 is corresponding by centering with stator diffuser 5, the corresponding surface of front end formation of stator and the working surface of stator diffuser 5 form the gap of 0.5mm.
Claims (1)
1. a high-temperature and high-pressure wearable pump, this pump is formed primarily of the pump housing, impeller, guide plate, liner plate, stator diffuser, pump cover, pump shaft; The tail end of pump shaft (10) is fixed with impeller (3), the pump cover at impeller (3) back is fixed with liner plate (4) and guide plate (2); It is characterized in that: the inlet side of the described pump housing (1) loads stator diffuser (5), and stator diffuser is fixed on the pump housing (1) by the stop pin (7) preventing stator diffuser (5) from rotating; The pump housing (1) runner adopts ring runner (6); Described impeller (3) is the half-opened impeller be made up of back shroud, stator, and the stator indent in the outlet port of impeller (3) forms indent outlet (8); After impeller (3) is corresponding by centering with stator diffuser (5), the corresponding surface of front end formation of stator and the working surface of stator diffuser (5) form the gap of 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742483.8U CN204253452U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420742483.8U CN204253452U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253452U true CN204253452U (en) | 2015-04-08 |
Family
ID=52957765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420742483.8U Expired - Fee Related CN204253452U (en) | 2014-11-20 | 2014-11-20 | High-temperature and high-pressure wearable pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454654A (en) * | 2014-11-20 | 2015-03-25 | 辽宁长志泵业有限公司 | High-temperature and high-pressure abrasion-resisting pump |
-
2014
- 2014-11-20 CN CN201420742483.8U patent/CN204253452U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454654A (en) * | 2014-11-20 | 2015-03-25 | 辽宁长志泵业有限公司 | High-temperature and high-pressure abrasion-resisting pump |
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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 |