CN201858194U - Closed impeller of centrifugal pump - Google Patents
Closed impeller of centrifugal pump Download PDFInfo
- Publication number
- CN201858194U CN201858194U CN201020617463XU CN201020617463U CN201858194U CN 201858194 U CN201858194 U CN 201858194U CN 201020617463X U CN201020617463X U CN 201020617463XU CN 201020617463 U CN201020617463 U CN 201020617463U CN 201858194 U CN201858194 U CN 201858194U
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- CN
- China
- Prior art keywords
- cover plate
- centrifugal pump
- closed type
- back shroud
- pump closed
- 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 closed impeller of a centrifugal pump, comprising a front cover plate, a rear cover plate, a sealing ring and an inner shaft sleeve, wherein the sealing ring is arranged on the front cover plate; the inner shaft sleeve is arranged at the central position of the rear cover plate; six impeller blades are arranged between the front cover plate and the rear cover plate, are uniformly distributed on the rear cover plate in an annular way and are fixed on the front cover plate and the rear cover plate in a welding way; and an included angle between the front end of the fixed side of each impeller blade and the rear cover plate is smaller than that between the rear end of the fixed side of each impeller blade and the rear cover plate. The closed impeller has the following characteristics: spaces of a water inlet and a flow passage are enlarged, so that the amount of pumped water can be greatly increased; moreover, a reinforcing ring is sheathed outside the inner shaft sleeve, so that the integral and uniform connection between the inner shaft sleeve and the impeller blades and between the front cover plate and the rear cover plate is enhanced.
Description
Technical field
The utility model relates to a kind of impeller, especially relates to a kind of centrifugal pump closed type impeller.
Background technique
Use centrifugal pump through regular meeting on the agricultural, the blade of existing impeller adopts tiltedly curved being arranged on the cover plate mostly, and young, the runner of intake designs unreasonable, causes into water and water outlet poor effect, has had a strong impact on the efficient of drawing water of water pump, needs to be resolved hurrily.
The model utility content
In order to overcome above-mentioned defective, the utility model provides the impeller of a kind of water intake and flow passage design.
In order to reach above-mentioned technical purpose, the utility model by the following technical solutions:
A kind of centrifugal pump closed type impeller, comprise front shroud and back shroud, be located at the seal ring of front shroud and the internal axle sleeve of back shroud center, be provided with 6 blades between the described forward and backward cover plate, described 6 blades are annular spread and being fixedly welded on the forward and backward cover plate equably, wherein, the angle between described vanes fixed side front end and the back shroud is less than the angle between rear end and the back shroud.
Above-mentioned centrifugal pump closed type impeller, wherein, described vanes fixed rear flank end is vertical with back shroud.
Above-mentioned centrifugal pump closed type impeller, wherein, the angle between described vanes fixed side front end and the back shroud is preferably 45 ~ 80 °.
Angle between this vanes fixed side front end and the back shroud is preferably 60 ~ 70 °.
Angle the best between this vanes fixed side front end and the back shroud is 68 °.
Above-mentioned centrifugal pump closed type impeller, wherein, on the described blade substantially horizontal to the direction bending of internal axle sleeve.
Above-mentioned centrifugal pump closed type impeller, wherein this blade front end Vertical direction is provided with the depression towards internal axle sleeve.
Above-mentioned centrifugal pump closed type impeller, wherein the vertical height of this blade front end is greater than the vertical height of rear end.
Above-mentioned centrifugal pump closed type impeller wherein, is with stiffening ring on the described internal axle sleeve.
The vertical height of the close internal axle sleeve in the side of this stiffening ring is greater than the vertical height away from internal axle sleeve.
The utility model has the following advantages compared to existing technology:
1, the utility model centrifugal pump closed type impeller because the angle between blade front end and the back shroud is less than the angle between rear end and the back shroud, thereby increases impeller water inlet and flow channel space, can improve the water outlet effect of impeller significantly.
2, the utility model centrifugal pump closed type impeller owing to be with stiffening ring on the internal axle sleeve, can make internal axle sleeve and 6 blades effectively, evenly is connected with the whole of forward and backward cover plate.
Description of drawings
Fig. 1 is the structural representation of the utility model centrifugal pump closed type impeller.
Fig. 2 is the structural representation of the vanes fixed of the utility model centrifugal pump closed type impeller in back shroud.
Embodiment
Below, come in conjunction with the accompanying drawings the utility model is described further:
Embodiment: as Fig. 1, shown in 2, the utility model centrifugal pump closed type impeller comprises back shroud 7, the center of this back shroud 7 is provided with internal axle sleeve 1, the outside of internal axle sleeve 1 is equipped with the stiffening ring 2 of an annular, the outside of this stiffening ring 2 is equipped with six blades 3, be distributed on the back shroud 7 to these six blade 3 circular symmetric, before preferable being welded in of a side that this blade 3 contacts with back shroud 7, on the back shroud 7, the rear end of this blade 3 is to the direction bending towards internal axle sleeve 1, make described blade 3 have a radian in the horizontal direction, the front end of the weld side of this blade 3 and back shroud 7 shapes are in an angle, also shape is in an angle for the rear end of the weld side of this blade 3 and back shroud 7, this front end angle is less than this rear end angle, be covered with a front shroud 5 on this back shroud 7, this front shroud 5 has a center hole, and one-body molded around the described center hole have a seal ring, this center hole is connected with the hole of internal axle sleeve 1, between the space of these six blades 3 after front shroud 5 and back shroud 7 cover.
The centrifugal pump closed type impeller of said structure is provided with stiffening ring 2 between internal axle sleeve 1 and the blade 3, is used to avoid directly contact between internal axle sleeve 1 and blade 3 front ends, reduces the wearing and tearing of internal axle sleeve 1 and blade 3.This stiffening ring 2 is preferably the stainless steel material punching press and makes; the preferable cambered surface that is set in the side of this stiffening ring 2; and the vertical height of these stiffening ring 2 close internal axle sleeves 1 is greater than the vertical height away from internal axle sleeve 1; like this can be in protection internal axle sleeve 1 and blade 3; save stiffening ring 2 shared space in impeller, reduce friction with blade 3.
Said structure centrifugal pump closed type impeller, these blade 3 rear ends are towards internal axle sleeve 1 direction bending, and the space of going into water channel that makes two adjacent blades 3 form increases, and is added to the water yield, also make the water yield of discharging from water outlet 4 increase.
Angle between these blade 3 front ends and the back shroud 7 is less than the angle between rear end and the back shroud 7, can alleviate the suffered direct impact force of waterpower of blade 3, reduces the waterpower load that blade 3 is subjected to, and improves impeller water outlet effect.Be preferably 45 ~ 80 ° between these blade 3 front ends and the back shroud 7, better 60 ~ 70 °, the best is 68 °; Angle between these blade 3 rear ends and the back shroud 7 is preferably 80 ~ 90 °, is preferably 90 °.
The said structure centrifugal pump closed type impeller, also blade 3 front ends be provided with one the depression 8, the depression direction of this depression 8 is towards internal axle sleeve 1, this depression 8 the further space that increases water intake 6 is set, the curved design that cooperates the substantially horizontal of blade 3, increase the space of water intake 6 greatly, can improve inflow.
The said structure centrifugal pump closed type impeller can also make the vertical cover degree of the vertical height of blade 3 front ends greater than blade 3 rear ends, the space of improving water intake 6 further, and can improve the waterpower load capacity of water intake 6.
Generally speaking, the double shrouded wheel of said structure owing to adopt stainless steel materials, the water intake of impeller and flow channel space are evenly increased, and it is slim and graceful to have weight, and the centrifugal pump overall dynamic-balance is run well.Especially to the unique design of recessed, the arc of 6 blade stamps, distortion, angle, 6 runners that make whole impeller have the effect of " art is good for strength " along sliding Channel Group, and its pumping load has increased by 40% than traditional impeller.
Claims (10)
1. centrifugal pump closed type impeller, comprise front shroud and back shroud, be located at the seal ring of front shroud and the internal axle sleeve of back shroud center, be provided with 6 blades between the described forward and backward cover plate, described 6 blades annular spread equably is characterized in that in back shroud and through being fixedly welded on the forward and backward cover plate: the angle between described vanes fixed side front end and the back shroud is less than the angle between rear end and the back shroud.
2. centrifugal pump closed type impeller according to claim 1 is characterized in that: described vanes fixed rear flank end is vertical with back shroud.
3. centrifugal pump closed type impeller according to claim 1 and 2 is characterized in that: the angle between described vanes fixed side front end and the back shroud is 45 ~ 80 °.
4. centrifugal pump closed type impeller according to claim 3 is characterized in that: the angle between described vanes fixed side front end and the back shroud is 60 ~ 70 °.
5. centrifugal pump closed type impeller according to claim 4 is characterized in that: the angle between described vanes fixed side front end and the back shroud is 68 °.
6. centrifugal pump closed type impeller according to claim 1 is characterized in that: on the described blade substantially horizontal to the direction bending of internal axle sleeve.
7. according to claim 1 or 6 described centrifugal pump closed type impellers, it is characterized in that: described blade front end Vertical direction is provided with the depression towards internal axle sleeve.
8. according to claim 1 or 6 described centrifugal pump closed type impellers, it is characterized in that: the vertical height of described blade front end is greater than the vertical height of rear end.
9. according to claim 1 or 6 described centrifugal pump closed type impellers, it is characterized in that: be with stiffening ring on the described internal axle sleeve.
10. centrifugal pump closed type impeller according to claim 9 is characterized in that: the vertical height of the close internal axle sleeve in the side of described stiffening ring is greater than the vertical height away from internal axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020617463XU CN201858194U (en) | 2010-11-22 | 2010-11-22 | Closed impeller of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020617463XU CN201858194U (en) | 2010-11-22 | 2010-11-22 | Closed impeller of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858194U true CN201858194U (en) | 2011-06-08 |
Family
ID=44104001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020617463XU Expired - Fee Related CN201858194U (en) | 2010-11-22 | 2010-11-22 | Closed impeller of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858194U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632697A (en) * | 2013-11-08 | 2015-05-20 | 东莞市恒越实业有限公司 | High-efficiency and energy-saving oriented start water pump |
| CN105179304A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Plastic corrosion resisting and abrasion resisting pump and molding mold of impeller of plastic corrosion resisting and abrasion resisting pump |
| CN106351871A (en) * | 2016-11-22 | 2017-01-25 | 江苏斯别特制泵有限公司 | High-power sewage pump impeller structure |
| CN109779964A (en) * | 2019-04-02 | 2019-05-21 | 萨震压缩机（上海）有限公司 | Energy-saving centrifugal impeller |
-
2010
- 2010-11-22 CN CN201020617463XU patent/CN201858194U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632697A (en) * | 2013-11-08 | 2015-05-20 | 东莞市恒越实业有限公司 | High-efficiency and energy-saving oriented start water pump |
| CN105179304A (en) * | 2015-09-17 | 2015-12-23 | 宜兴市宙斯泵业有限公司 | Plastic corrosion resisting and abrasion resisting pump and molding mold of impeller of plastic corrosion resisting and abrasion resisting pump |
| CN106351871A (en) * | 2016-11-22 | 2017-01-25 | 江苏斯别特制泵有限公司 | High-power sewage pump impeller structure |
| CN109779964A (en) * | 2019-04-02 | 2019-05-21 | 萨震压缩机（上海）有限公司 | Energy-saving centrifugal impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20131122 |