CN202326273U - Vertical self-priming pump with fixed reversed bending impeller - Google Patents
Vertical self-priming pump with fixed reversed bending impeller Download PDFInfo
- Publication number
- CN202326273U CN202326273U CN2011204301137U CN201120430113U CN202326273U CN 202326273 U CN202326273 U CN 202326273U CN 2011204301137 U CN2011204301137 U CN 2011204301137U CN 201120430113 U CN201120430113 U CN 201120430113U CN 202326273 U CN202326273 U CN 202326273U
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- Prior art keywords
- impeller
- contraflexure
- pump
- reversed bending
- rotary
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- Expired - Lifetime
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- 238000005452 bending Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model provides a vertical self-priming pump with a fixed reversed bending impeller, which comprises a pump body (1), a main shaft (2) and a rotary impeller (3), wherein the rotary impeller (3) is arranged on the main shaft (2); the outer side of the rotary impeller (3) is provided with the fixed reversed bending impeller (4); the inlet setting angle of fixed reversed bending impeller blade working face (5) is alpha; the alpha is an included angle between the direction v2 to which liquid flows into the fixed reversed bending impeller and the rotary circumferential direction u2 of the rotary impeller; the outlet setting angle of the fixed reversed bending impeller blade working face is 90 degrees; and the bending direction of the fixed reversed bending impeller is opposite to the flowing direction of the liquid in the rotary impeller. According to the structure adopted by the utility model, rotation velocity energy can be converted into pressure energy, and thereby, hydraulic loss caused by a screw-type volute is eliminated, the efficiency of the pump is increased, an unbalanced radial force caused by deviating off a peak efficiency point is eliminated, and the vibration of the pump is reduced.
Description
Technical field
The utility model relates to a kind of vertical self-sucking pump, and is particularly a kind of with the fixing vertical self-sucking pump of contraflexure impeller.
Background technique
Vertical self-sucking pump is a kind of non-sealing self-sucking pump, is widely used in industries such as chemical industry, petrochemical industry, electric power and carries sewage, has and does not have leakage, high reliability features.But the self-priming pump of existing use all adopts the screw type spiral case as delivery chamber, and hydraulic loss is bigger, and efficient is low; Simultaneously, when the pump operation point departed from best efficiency point, uneven radial force caused the vibration values of pump to exceed standard easily, has strengthened noise, has also influenced the working life of pump.
The model utility content
The purpose of the utility model provides a kind of with the fixing vertical self-sucking pump of contraflexure impeller, can solve self-priming pump causes hydraulic loss because of conventional helical type spiral case technical problem.
The purpose of the utility model realizes as follows: a kind of with the fixing vertical self-sucking pump of contraflexure impeller; Comprise the pump housing, main shaft and rotary blade; Rotary blade is installed on the main shaft; Be provided with fixedly contraflexure impeller in the outside of rotary blade, fixedly the import laying angle of contraflexure impeller blade working surface is α, and α is that liquid flows into fixedly contraflexure impeller direction v
2With rotary blade rotation round direction u
2Angle, fixedly the outlet laying angle of contraflexure impeller blade working surface is 90 °, fixedly the bending direction of contraflexure impeller and the liquid flow direction in rotary blade is opposite.
The structure that the utility model adopts can extremely get into pump chamber along normal direction from the rotating liquid rectification that rotary blade flows out, and can convert rotational speed into the pressure ability, has eliminated the hydraulic loss that the screw type spiral case causes, and has improved the efficient of pump; Eliminated and departed from the uneven radial force that best efficiency point causes, reduced the vibration of pump.
Description of drawings
For the content that makes the utility model is expressly understood more easily, according to specific embodiment also in conjunction with the accompanying drawings, the utility model is described in further detail below, wherein:
Shown in Figure 1 is the structural representation of the utility model
Shown in Figure 2 for rotary blade sectional drawing and with the fixing relative position of contraflexure impeller
Shown in Figure 3 is the sense of rotation of rotary blade and the direction that liquid flows out rotary blade
Shown in Figure 4ly be the fixing working surface of contraflexure impeller blade, liquid flows into, the fixing direction of contraflexure impeller of outflow
Among the figure: 1, the pump housing 2, main shaft 3, rotary blade 4, fixedly contraflexure impeller 5, fixing contraflexure impeller blade working surface
Embodiment:
With reference to accompanying drawing; A kind of with the fixing vertical self-sucking pump of contraflexure impeller; Comprise the pump housing 1, main shaft 2 and rotary blade 3, rotary blade 3 is installed on the main shaft 2, is provided with fixedly contraflexure impeller 4 in the outside of rotary blade 3; Fixedly the import laying angle of contraflexure impeller blade working surface 5 is α, and α is that liquid flows into fixedly contraflexure impeller direction v
2With rotary blade rotation round direction u
2Angle, fixedly the outlet laying angle of contraflexure impeller blade working surface is 90 °, fixedly the bending direction of contraflexure impeller and the liquid flow direction in rotary blade is opposite.
Can know that by accompanying drawing fixing contraflexure impeller 4 is installed on the outside of rotary blade 3, is fixed in the vertical self-sucking pump pump chamber.Fixedly contraflexure impeller 4 is a kind of multiblade impellers, and the bending direction of its blade and traditional radially stator bending direction are opposite, promptly opposite with the flow direction of liquid in rotary blade.The direction of arrow is the rotary blade sense of rotation among Fig. 3, and when rotary blade 3 rotations, liquid is along rotary blade 3 outer peripheral velocity u
2With axis plane velocity v
M2Resultant velocity v
2Direction flows out, and arrow is that liquid flows into, flows out fixedly contraflexure impeller direction among Fig. 4, through fixing contraflexure impeller blade with rotational speed convert into pressure can, along the fixing contraflexure impeller 4 entering pump chambers of normal orientation outflow.Thereby reduced hydraulic loss, improved the efficient of pump because of adopting conventional helical type spiral case to cause; Eliminate uneven radial force, reduced the vibration of pump.
Above-described specific embodiment; Purpose, technological scheme and beneficial effect to the utility model have carried out further explain, it should be understood that the above is merely the specific embodiment of the utility model; Be not limited to the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (1)
1. be with the fixedly vertical self-sucking pump of contraflexure impeller for one kind; Comprise the pump housing, main shaft and rotary blade; Rotary blade is installed on the main shaft; It is characterized in that: be provided with fixedly contraflexure impeller in the outside of rotary blade, fixedly the import laying angle of contraflexure impeller blade working surface is α, and α is that liquid flows into fixedly contraflexure impeller direction v
2With rotary blade rotation round direction u
2Angle, fixedly the outlet laying angle of contraflexure impeller blade working surface is 90 °, fixedly the bending direction of contraflexure impeller and the liquid flow direction in rotary blade is opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204301137U CN202326273U (en) | 2011-11-03 | 2011-11-03 | Vertical self-priming pump with fixed reversed bending impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204301137U CN202326273U (en) | 2011-11-03 | 2011-11-03 | Vertical self-priming pump with fixed reversed bending impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326273U true CN202326273U (en) | 2012-07-11 |
Family
ID=46438255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204301137U Expired - Lifetime CN202326273U (en) | 2011-11-03 | 2011-11-03 | Vertical self-priming pump with fixed reversed bending impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326273U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032370A (en) * | 2013-01-04 | 2013-04-10 | 江苏大学 | Efficient asymmetric guide blade body matched with annular pumping chamber |
| CN107143519A (en) * | 2017-07-06 | 2017-09-08 | 亿德机电科技（福建）有限公司 | High temperature and high speed pump with self-cleaning function |
-
2011
- 2011-11-03 CN CN2011204301137U patent/CN202326273U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032370A (en) * | 2013-01-04 | 2013-04-10 | 江苏大学 | Efficient asymmetric guide blade body matched with annular pumping chamber |
| CN103032370B (en) * | 2013-01-04 | 2015-06-10 | 江苏大学 | Efficient asymmetric guide blade body matched with annular pumping chamber |
| CN107143519A (en) * | 2017-07-06 | 2017-09-08 | 亿德机电科技（福建）有限公司 | High temperature and high speed pump with self-cleaning function |
| CN107143519B (en) * | 2017-07-06 | 2023-10-27 | 福建省福安市力德泵业有限公司 | High-temperature high-speed pump with self-cleaning function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |
|
| CX01 | Expiry of patent term |