CN204419686U - Single-stage centrifugal pump impeller - Google Patents
Single-stage centrifugal pump impeller Download PDFInfo
- Publication number
- CN204419686U CN204419686U CN201420871118.7U CN201420871118U CN204419686U CN 204419686 U CN204419686 U CN 204419686U CN 201420871118 U CN201420871118 U CN 201420871118U CN 204419686 U CN204419686 U CN 204419686U
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- China
- Prior art keywords
- centrifugal pump
- utility
- model
- front shroud
- shroud
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- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 11
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses single-stage centrifugal pump impeller, comprise blade, front shroud and back shroud, described blade is between front shroud and back shroud, described front shroud offers circular preoral loop, the passage formed between preoral loop with blade communicates, described secondary vane is positioned at the edge of front shroud and back shroud, secondary vane is uniformly distributed in impeller body circumferentially, the utility model substantially increases the hydraulic efficiency of centrifugal pump impeller, reduce energy consumption, energy saving, lower mechanical seal running environment simultaneously, substantially increase the working life of mechanical seal, and be conducive to reducing axial force, improve the working life of rolling bearing, thus reach energy-conservation and the effect of the efficiency of raising water pump, compared to existing technology, the utility model energy consumption is lower, save the energy greatly, reduce the financial expenditure of user, therefore great market prospects are had.
Description
Technical field
The utility model relates to centrifugal pumping apparatus field, specifically a kind of single-stage centrifugal pump impeller.
Background technique
Water pump is conveying liquid or the machinery making fluid pressurization.It sends the mechanical energy of prime mover or other external energies to liquid, liquid energy is increased, be mainly used to conveying liquid and comprise water, oil, acid & alkali liquid, emulsified liquid, suspended emulsion and liquid metal etc., also can carry liquid, gaseous mixture and the liquid containing suspended solids.The technical parameter weighing pump performance has flow, inhales journey, lift, air horsepower, water-horse power, efficiency etc.; The types such as volume water pump, vane pump can be divided into according to different working principles.Displacement pump is the change utilizing its swept volume of a single chamber
Change and carry out transferring energy; Vane pump utilizes the interaction of rotary vane and water to carry out transferring energy, has the types such as centrifugal pump, axial-flow pump and mixed flow pump.
Water pump is widely used in the every field of national economy, and be a kind of highly energy-consuming engineering goods driven by power equipment, power consumption accounts for 15% ~ 20% of gross generation.Along with the fast development of national economy, the consumption of water pump is also increasing fast.Because centrifugal pump accounts for ratio is maximum in all pump kinds, so improve the hydraulic efficiency of centrifugal pump, there is significant reduction to the power consumption of pump, therefore improve the structure of single stage centrifugal pump vital part impeller, improve the efficiency of water pump thus to reduce power consumption very urgent.
Model utility content
The purpose of this utility model is to provide single-stage centrifugal pump impeller, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
Single-stage centrifugal pump impeller, comprise blade, front shroud and back shroud, described blade is between front shroud and back shroud, described front shroud offers circular preoral loop, the passage formed between preoral loop with blade communicates, and described secondary vane is positioned at the edge of front shroud and back shroud, and secondary vane is uniformly distributed in impeller body circumferentially, the liquid of described secondary vane also by being flowed out by blade carries out the secondary booster of part, again improves water lift of pump.
As further program of the utility model: described centrifugal pump impeller back shroud is also provided with the equalizing orifice for earial drainage, pressure in mechanical seal chamber thoroughly can be reached the pressure with suction port, lower mechanical seal running environment, substantially increase the working life of mechanical seal, and be conducive to reducing axial force, improve the working life of rolling bearing, thus reach energy-conservation and the effect of the efficiency of raising water pump.
As the utility model further scheme: described secondary vane exit angle 90 °.
As the utility model further scheme: described back shroud offers circular rear choma.
As the utility model further scheme: the end face of described secondary vane keeps axial clearance to be less than 0.5mm when assembling and between the pump housing.
Compared with prior art, the beneficial effects of the utility model are: the utility model substantially increases the hydraulic efficiency of centrifugal pump impeller, reduce energy consumption, energy saving, lower mechanical seal running environment simultaneously, substantially increase the working life of mechanical seal, and be conducive to reducing axial force, improve the working life of rolling bearing, thus reach energy-conservation and the effect of the efficiency of raising water pump, compared to existing technology, the utility model energy consumption is lower, save the energy greatly, reduced the financial expenditure of user, therefore have great market prospects.
Accompanying drawing explanation
The sectional view of Fig. 1 to be the utility model be single-stage centrifugal pump impeller.
The plan view of Fig. 2 to be the utility model be single-stage centrifugal pump impeller.
In figure: choma, 7-equalizing orifice after 1-preoral loop, 2-blade, 3-front shroud, 4-secondary vane, 5-back shroud, 6-.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 2, in the utility model embodiment, single-stage centrifugal pump impeller, comprise blade 2, front shroud 3 and back shroud 5, described blade 2 is between front shroud 3 and back shroud 5, described front shroud 3 offers circular preoral loop 1, the passage formed between preoral loop 1 with blade 2 communicates;
Described secondary vane 4 is positioned at the edge of front shroud 3 and back shroud 5, secondary vane 4 exit angle 90 °, secondary vane 4 is uniformly distributed in impeller body circumferentially, the end face of secondary vane 4 keeps axial clearance to be less than 0.5mm when assembling and between the pump housing, seal action is played during operation, reduce the pressure in Seal cage simultaneously, reduce high pressure water to preoral loop 1, the flow of rear choma 6, thus reach minimizing backflow, improve the hydraulic efficiency of water pump, the liquid of described secondary vane 4 also by being flowed out by blade 2 carries out the secondary booster of part, again improve water lift of pump, so just can more than 10% be being reduced with the Ordinary Centrifugal Pumps impeller of same lift demand, and lift can be kept constant, described centrifugal pump impeller back shroud 5 is also provided with the equalizing orifice 7 for earial drainage, pressure in mechanical seal chamber thoroughly can be reached the pressure with suction port, lower mechanical seal running environment, substantially increase the working life of mechanical seal, and be conducive to reducing axial force, improve the working life of rolling bearing, thus reach energy-conservation and the effect of the efficiency of raising water pump.
Working principle of the present utility model is: the end face of secondary vane 4 keeps axial clearance to be less than 0.5mm when assembling and between the pump housing, seal action is played during operation, reduce the pressure in Seal cage simultaneously, reduce high pressure water to preoral loop 1, the flow of rear choma 6, thus reach minimizing backflow, improve the hydraulic efficiency of water pump, the liquid of described secondary vane 4 also by being flowed out by blade 2 carries out the secondary booster of part, again improve water lift of pump, so just can more than 10% be being reduced with the Ordinary Centrifugal Pumps impeller of same lift demand, and lift can be kept constant, pressure in mechanical seal chamber can thoroughly be reached the pressure with suction port by equalizing orifice 7, lower mechanical seal running environment, substantially increase the working life of mechanical seal, and be conducive to reducing axial force, improve the working life of rolling bearing, thus reach energy-conservation and the effect of the efficiency of raising water pump.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.
Any reference character in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (5)
1. single-stage centrifugal pump impeller, it is characterized in that, comprise blade (2), secondary vane (4), front shroud (3) and back shroud (5), described blade (2) is positioned between front shroud (3) and back shroud (5), described front shroud (3) offers circular preoral loop (1), the passage formed between preoral loop (1) with blade (2) communicates, described secondary vane (4) is positioned at the edge of front shroud (3) and back shroud (5), and secondary vane (4) is uniformly distributed in impeller body circumferentially.
2. single-stage centrifugal pump impeller according to claim 1, is characterized in that, described back shroud (5) is provided with equalizing orifice (7).
3. single-stage centrifugal pump impeller according to claim 1, is characterized in that, described secondary vane (4) exit angle 90 °.
4. single-stage centrifugal pump impeller according to claim 1, is characterized in that, described back shroud (5) offers circular rear choma (6).
5. single-stage centrifugal pump impeller according to claim 1, is characterized in that, the end face of described secondary vane (4) keeps axial clearance to be less than 0.5mm when assembling and between the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871118.7U CN204419686U (en) | 2014-12-31 | 2014-12-31 | Single-stage centrifugal pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871118.7U CN204419686U (en) | 2014-12-31 | 2014-12-31 | Single-stage centrifugal pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419686U true CN204419686U (en) | 2015-06-24 |
Family
ID=53470063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871118.7U Expired - Fee Related CN204419686U (en) | 2014-12-31 | 2014-12-31 | Single-stage centrifugal pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419686U (en) |
-
2014
- 2014-12-31 CN CN201420871118.7U patent/CN204419686U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |