CN201144820Y - Improved structure of double-suction pump impeller - Google Patents
Improved structure of double-suction pump impeller Download PDFInfo
- Publication number
- CN201144820Y CN201144820Y CNU2007201995050U CN200720199505U CN201144820Y CN 201144820 Y CN201144820 Y CN 201144820Y CN U2007201995050 U CNU2007201995050 U CN U2007201995050U CN 200720199505 U CN200720199505 U CN 200720199505U CN 201144820 Y CN201144820 Y CN 201144820Y
- Authority
- CN
- China
- Prior art keywords
- impeller body
- impeller
- vanes
- suction pump
- primary blades
- 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
An improved structure of a double-suction pump impeller consists of an impeller body, wherein the impeller body is provided inside with a flow passage, an inlet and an outlet; the circumference of the impeller body is provided with more than three main vanes which extend in a primary arc from an axle center in counterclockwise direction in the radial section of the impeller body; the end of the primary arc extending part of each main vane extends in a secondary arc in clockwise direction; short vanes are respectively arranged at the outlet and between any two adjacent main vanes, and are respectively connected with the impeller body; the mounting angles of the main vanes and the short vanes are 90 degrees; the length of the secondary arc bending is 80 percent of that of the main vanes; and the inlet is provided with a cutwater. The improved structure arranges the radial section of each main vane in the shape of an S-shaped bending, and ensures that the flow of the liquid inside the impeller body not only accords with flow law, but also improves pump head, thereby greatly increasing pump efficiency; meanwhile, the short vanes can reduce the diffusion degree of the flow passage; moreover, the cutwaters can eliminate liquid rotation to stabilize liquid flow.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to pump, particularly a kind of improvement structure of double suction pump impeller.
Background technique:
Double suction pump is widely used in industries such as power station, tap water, municipal administration, building, fire-fighting, industrial and mineral, is used to carry clear water or physicochemical properties to be similar to other medium of clear water, is used for occasions such as irrigation and drainage, cooling recirculation system.The double suction pump impeller is the major part that influences the double suction pump performance.In the prior art, the blade of double suction pump impeller all is designed to cylinder blade or twisted blade, and lift is in 200m.And in real world applications, often needing higher lift, traditional double suction pump is very low in high-lift scope internal efficiency, is not suitable for moving in this scope.
Summary of the invention:
The purpose of this utility model provides a kind of improvement structure of double suction pump impeller, and the improvement structure of described this double suction pump impeller will solve in the prior art double suction pump in the low technical problem of high-lift scope internal efficiency.
The improvement structure of this double suction pump impeller of the present utility model is made of an impeller body, be provided with runner in the described impeller body, import and outlet, the circumference of impeller body is provided with the primary blades of three above numbers, described primary blades all is bowing for the first time from axis central part to counter clockwise direction and extends in the radial cross section of impeller body, wherein, in the impeller body radial cross section, described primary blades the first time bowing extension end be bowing for the second time to clockwise direction, in described outlet port, be provided with a short blade between two adjacent arbitrarily primary blades, described short blade is connected with impeller body respectively.
Further, the laying angle of described primary blades and short blade is 90 degree.
Further, in the impeller body radial cross section, the length of bowing for the second time is 80% of primary blades length.
Further, the inlet of impeller body is provided with cut water.
Working principle of the present utility model is: the radially bending of primary blades exit portion, make the lift that flows and not only meet flowing law but also can improve water pump of liquid in the impeller, and the efficient of water pump also is greatly improved.Lift approximately improves 15% during small flow, approximately improves 50% during big flow, and performance curve is more smooth, has solved water pump lift problem on the low side when big flow.Simultaneously, approximately improve 3%～4% during the pump efficiency small flow, improve about 7% during big flow.The short blade that is provided with between the primary blades can reduce the diffusion of runner.Cut water is positioned at suction chamber, can eliminate liquid in rotation, stabilizing solution stream.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model is provided with S-type bending with the radial cross section of primary blades, makes the lift that flows and not only meet flowing law but also can improve water pump of liquid in the impeller, and the efficient of water pump also is greatly improved.Lift approximately improves 15% during small flow, approximately improves 50% during big flow, and performance curve is more smooth, has solved water pump lift problem on the low side when big flow.Simultaneously, approximately improve 3%～4% during the pump efficiency small flow, improve about 7% during big flow.Short blade is set between primary blades, can reduces the diffusion of runner.Cut water is positioned at suction chamber, can eliminate liquid in rotation, stabilizing solution stream.
Description of drawings:
Fig. 1 is the schematic representation of the improvement structure of double suction pump impeller of the present utility model.
Embodiment:
As shown in Figure 1, the improvement structure of double suction pump impeller of the present utility model is made of an impeller body 1, be provided with the runner (not shown) in the described impeller body 1, import (not shown) and outlet (not shown), the circumference of impeller body 1 is provided with the primary blades 2 of three above numbers, described primary blades 2 all is bowing for the first time from axis central part to counter clockwise direction and extends 3 in the radial cross section of impeller body 1, wherein, in impeller body 1 radial cross section, the end of the bowing extension first time 3 of described primary blades 2 is bowing 4 for the second time to clockwise direction, in described outlet port, be provided with a short blade (not shown) between two adjacent arbitrarily primary blades 2, described short blade is connected with impeller body 1 respectively.
Further, the laying angle of described primary blades 2 and short blade is 90 degree.
Further, in impeller body 1 radial cross section, the length of bowing 4 for the second time is 80% of primary blades 2 length.
Further, the inlet of impeller body 1 is provided with the cut water (not shown).
Working procedure of the present utility model is: the radially bending of primary blades 2 exit portion, make the lift that flows and not only meet flowing law but also can improve water pump of liquid in the impeller, and the efficient of water pump also is greatly improved.Lift approximately improves 15% during small flow, approximately improves 50% during big flow, and performance curve is more smooth, has solved water pump lift problem on the low side when big flow.Simultaneously, approximately improve 3%～4% during the pump efficiency small flow, improve about 7% during big flow.The short blade that is provided with between the primary blades 2 can reduce the diffusion of runner.Cut water is positioned at suction chamber, can eliminate liquid in rotation, stabilizing solution stream.
Claims (4)
1. the improvement structure of a double suction pump impeller, constitute by an impeller body, be provided with runner in the described impeller body, import and outlet, the circumference of impeller body is provided with the primary blades of three above numbers, described primary blades all is bowing for the first time from axis central part to counter clockwise direction and extends in the radial cross section of impeller body, it is characterized in that: in the impeller body radial cross section, described primary blades the first time bowing extension end be bowing for the second time to clockwise direction, in described outlet port, be provided with a short blade between two adjacent arbitrarily primary blades, described short blade is connected with impeller body respectively.
2. the improvement structure of double suction pump impeller as claimed in claim 1 is characterized in that: the laying angle of described primary blades and short blade is 90 degree.
3. the improvement structure of double suction pump impeller as claimed in claim 1 is characterized in that: in the impeller body radial cross section, the length of bowing for the second time is 80% of primary blades length.
4. the improvement structure of double suction pump impeller as claimed in claim 1 is characterized in that: the inlet of impeller body is provided with cut water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995050U CN201144820Y (en) | 2007-12-19 | 2007-12-19 | Improved structure of double-suction pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995050U CN201144820Y (en) | 2007-12-19 | 2007-12-19 | Improved structure of double-suction pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201144820Y true CN201144820Y (en) | 2008-11-05 |
Family
ID=40081696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201995050U Expired - Fee Related CN201144820Y (en) | 2007-12-19 | 2007-12-19 | Improved structure of double-suction pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201144820Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562651A (en) * | 2012-03-08 | 2012-07-11 | 江苏大学 | High-efficiency wind-powered centrifugal pump impeller |
| CN103277335A (en) * | 2013-06-03 | 2013-09-04 | 高邮市高农机械配件有限公司 | Semi-open impeller supercharge structure |
| CN112628194A (en) * | 2020-12-30 | 2021-04-09 | 天津鼎成高新技术产业有限公司 | Impeller with reverse curvature and large outlet angle |
-
2007
- 2007-12-19 CN CNU2007201995050U patent/CN201144820Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562651A (en) * | 2012-03-08 | 2012-07-11 | 江苏大学 | High-efficiency wind-powered centrifugal pump impeller |
| CN103277335A (en) * | 2013-06-03 | 2013-09-04 | 高邮市高农机械配件有限公司 | Semi-open impeller supercharge structure |
| CN112628194A (en) * | 2020-12-30 | 2021-04-09 | 天津鼎成高新技术产业有限公司 | Impeller with reverse curvature and large outlet angle |
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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: 20081105 Termination date: 20121219 |