CN201650857U - Inducer used for low-cavitation shielding electric pump - Google Patents
Inducer used for low-cavitation shielding electric pump Download PDFInfo
- Publication number
- CN201650857U CN201650857U CN2010201662868U CN201020166286U CN201650857U CN 201650857 U CN201650857 U CN 201650857U CN 2010201662868 U CN2010201662868 U CN 2010201662868U CN 201020166286 U CN201020166286 U CN 201020166286U CN 201650857 U CN201650857 U CN 201650857U
- Authority
- CN
- China
- Prior art keywords
- inducer
- cavitation
- electric pump
- shielding electric
- hub
- 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
Links
Images
Abstract
The utility model discloses an inducer used for a low-cavitation shielding electric pump, which comprises a hub (2) and a screw blade (1), and is characterized in that: the thread pitch of the screw blade (1) is in gradually changed and increased backwards from the front end, and the front part of the hub (2) is in cone-shape. After being installed, the inducer has variable pitch from the entrance to the exit when the electric pump works, and is closer to the flow field change rule, thus fundamentally ensuring that the inducer has excellent hydraulic performance. As the front end of the hub of the inducer is design to be in cone shape, and the rear end thereof is cylindrical, the cone-shaped structure of the front end increases the overflowing area of the entrance, and under the same flow rate, the flow speed of the liquid is reduced, thus improving the anti-cavitation performance of the shielding electric pump, eliminating individual difference of the inducer during batch production, and ensuring the consistency and stability of the anti-cavitation performance of each shielding electric pump.
Description
Technical field
The utility model relates to a kind of electric pump parts, particularly a kind of low cavitation shielded electric-pump inducer.
Background technique
Existingly be used for low cavitation shielded electric-pump and a columned wheel hub arranged in the middle of with the inducer structure being, be welded with the helical blade of tinsel stretch forming outside wheel hub, helical blade is the uniform pitch formula.The inducer of this structure has following shortcoming: 1,, make the hydraulic performance of inducer and cavitation performance on the low side because the inducer blade designs for uniform pitch, and easy deformation, the individual difference that exists between the inducer makes the cavitation performance of every shielded electric-pump inconsistent; 2, the cylindricality wheel hub exerts an influence to the liquid inflow area at pump intake place.
Summary of the invention
The purpose of this utility model provides a kind of pump hydraulic performance and cavitation performance height, liquid enter the low cavitation shielded electric-pump inducer that performance smooth and easy, each electric pump reaches unanimity in the pump, overcomes the deficiencies in the prior art.
Low cavitation shielded electric-pump inducer of the present utility model is made of wheel hub and screw blade, and the pitch of helical blade is gradual change type and increase gradually backward from front end, and the front portion of wheel hub is taper.
Low cavitation shielded electric-pump inducer of the present utility model, after the installation, inducer exports from entering the mouth to variable pitch during electric pump work, more near the flow field Changing Pattern, thereby is guaranteeing that fundamentally inducer has outstanding hydraulic performance.Inducer wheel hub Front-end Design is tapered, and the rear end is cylindrical, and the front end cone structure has increased inlet position area of passage, under the same traffic situation, has reduced flow rate of liquid, thereby improves the anti-cavitation performance of shielded electric-pump; Eliminate the individual difference that inducer exists when producing in batches, guaranteed the conformity and the stability of every shielded electric-pump cavitation performance.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1: 2 is wheel hub, and 1 is helical blade.The pitch of helical blade 1 is gradual change type and increase gradually backward from the front end of wheel hub, and the front portion of wheel hub 2 is taper.
Whole inducer can adopt the moulding of precision casting mode, and the degree of finish of flow channel for liquids when guaranteeing to use improves anti-cavitation performance, reduces noise.Utilize precision casting process also to eliminate the individual difference that exists when producing in batches simultaneously, guaranteed the conformity and the stability of every shielded electric-pump cavitation performance.
Claims (1)
1. one kind low cavitation shielded electric-pump inducer is made of wheel hub (2) and screw blade (1), it is characterized in that: the pitch of described helical blade (1) is gradual change type and increase gradually backward from front end, and the front portion of wheel hub (2) is taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201662868U CN201650857U (en) | 2010-04-22 | 2010-04-22 | Inducer used for low-cavitation shielding electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201662868U CN201650857U (en) | 2010-04-22 | 2010-04-22 | Inducer used for low-cavitation shielding electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650857U true CN201650857U (en) | 2010-11-24 |
Family
ID=43116092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201662868U Expired - Fee Related CN201650857U (en) | 2010-04-22 | 2010-04-22 | Inducer used for low-cavitation shielding electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650857U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287398A (en) * | 2011-07-25 | 2011-12-21 | 中国航天科技集团公司第六研究院第十一研究所 | Small-sized high-speed centrifugal pump suitable for flow regulation in wide range |
| CN102606521A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Inducer for containment spraying pump |
| CN102705263A (en) * | 2012-06-21 | 2012-10-03 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
-
2010
- 2010-04-22 CN CN2010201662868U patent/CN201650857U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287398A (en) * | 2011-07-25 | 2011-12-21 | 中国航天科技集团公司第六研究院第十一研究所 | Small-sized high-speed centrifugal pump suitable for flow regulation in wide range |
| CN102606521A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Inducer for containment spraying pump |
| CN102705263A (en) * | 2012-06-21 | 2012-10-03 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
| CN102705263B (en) * | 2012-06-21 | 2014-10-29 | 江苏大学 | Optimal design method for inducer with varying pitch of centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103291653A (en) | Low-specific-speed impeller and design method for blade thereof | |
| CN201650857U (en) | Inducer used for low-cavitation shielding electric pump | |
| CN102080671B (en) | Centrifugal pump | |
| CN103244456A (en) | Centrifugal pump impeller | |
| CN204975216U (en) | Modified impeller the gating system model | |
| CN202381410U (en) | High-cavitation-resistance tapered induction wheel with varying pitch for shield pump | |
| CN103089709A (en) | Vortex-segregating stream-guiding water inlet structure of axial flow pump | |
| CN109989943A (en) | A kind of multistage pump return guide vane splitterr vanes and design method | |
| CN206404938U (en) | A kind of ceramic nozzle | |
| CN105275880B (en) | A kind of mixed-flow core main pump | |
| CN104005983A (en) | Designing method of three operating points of impeller of high-specific-speed axial flow pump | |
| CN204267377U (en) | A kind of stator | |
| CN106640769A (en) | Conical water inflow device for improving instability hydraulic characteristic of axial flow pump | |
| CN201615088U (en) | Centrifugal pump | |
| CN201621074U (en) | High-efficient energy-saving centrifugal pump | |
| CN210716516U (en) | Water pipe water flow supercharger | |
| CN204493144U (en) | Compound bluff body Valveless piezoelectric pump | |
| CN201582194U (en) | Non-sweep angle conical variable pitch inducer | |
| CN201496279U (en) | Static pump | |
| CN209792278U (en) | Wet drawing machine for steel cord production | |
| CN204182174U (en) | For the conducting element of element kit and element kit and water purifier | |
| CN204699461U (en) | A kind of sewage pretreatment device | |
| CN204458554U (en) | Silencing water pump and water warming blanket | |
| CN209838774U (en) | Water outlet section structure of small-flow double-shell centrifugal pump | |
| CN201218228Y (en) | Improved plastic pump impeller |
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: 20101124 Termination date: 20140422 |