CN203441813U - Impeller of rotating jet pump - Google Patents
Impeller of rotating jet pump Download PDFInfo
- Publication number
- CN203441813U CN203441813U CN201320482910.9U CN201320482910U CN203441813U CN 203441813 U CN203441813 U CN 203441813U CN 201320482910 U CN201320482910 U CN 201320482910U CN 203441813 U CN203441813 U CN 203441813U
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- China
- Prior art keywords
- blades
- impeller
- wheel disc
- blade
- pump
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- Expired - Fee Related
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Abstract
The utility model relates to an impeller of a rotating jet pump. According to the existing impeller, the cross section of a blade is rectangular; the flow passage area does not have diffusion; the exhaust performance of the pump is not good; the drainage is not smooth; due to the simple pursuit of high efficiency, the cavitation performance of the pump is greatly given up; the phenomenon of pressure down of the pump exists in some applications; the performance of volatile medium conveying is poor; and the suction performance of the pump is influenced. The impeller of the rotating jet pump comprises a wheel disc and blades which are located on the wheel disc, wherein a through hole is arranged at the center of the wheel disc. The wheel disc and the blades are integrally molded. The impeller is characterized in that the blades are composed of long blades and short blades, wherein the long blades and the short blades are arranged along the radius direction; the long blades and the short blades are uniformly distributed along the circumferential direction at intervals, wherein the rectangular outlet ends are located on the same circumference and the tangent with the circumference is 90 degrees; and the triangular inlet ends of the long blades and the short blades deviate at 20 degrees to 30 degrees in the same direction. According to the structure, on the premise that the efficiency is not greatly given up, the cavitation performance of the pump is taken into account.
Description
Technical field
The utility model relates to a kind of impeller, especially a kind of impeller of rotary jet pump.
Background technique
Impeller is the critical component that liquid energy is provided in rotary-jet pump.Blade on existing impeller is rectangular cross-section, Flow area is without diffusion, cause the exhaust performance of pump bad, discharge opeing is unobstructed not, pursues simply high efficiency simultaneously, has significantly sacrificed the cavitation performance of pump, cause pump to have pressure phenomenon in the application having, the transportation performance of volatile medium is not good, and runner entrance angle is excessive, affects the suction performance of pump.Impeller inlet liquid to squeeze phenomenon very obvious.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of high efficiency and can be good at taking into account the impeller of rotary jet pump cavitation performance.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of impeller of rotary jet pump, comprise that central authorities are provided with the wheel disc of through hole and are positioned at the blade on wheel disc, wheel disc and blade are one-body molded, its specialization is: described blade is comprised of the linear leaf arranging along radial direction and short blade, described linear leaf and short blade form by rectangle outlet end and triangle entrance point, linear leaf and short blade are evenly spaced along the circumferential direction to distribute, the rectangle outlet end of linear leaf and short blade be positioned on same circumference and with tangent to periphery be 90 °, the triangle entrance point of linear leaf and short blade is 20 °-30 ° of deflections in the same direction.
The entrance point of described linear leaf is positioned at through hole edge, and the distance between short blade entrance point and the center of circle is the 30%-40% of wheel disc radius; The outlet end of linear leaf and short blade and the distance between the center of circle are the 80%-85% of wheel disc radius.
Described rectangle outlet end and triangle entrance point connect as one structure by circular arc.
The quantity of described blade is 8-12, and its vane thickness is 3～8mm.
Compared with prior art, the beneficial effects of the utility model are: in little amplitude, sacrifice under the condition of efficiency, well taken into account the cavitation performance of pump, the difficulty of processing is less, can easily accurately provide machining coordinate, can produce the blade of high incidence, suction performance is good.
Accompanying drawing explanation
Below in conjunction with drawings and embodiments, describe the utility model in detail:
Fig. 1 is structural representation of the present utility model.
In figure: 1. wheel disc, 2. through hole, 3. linear leaf, 4. short blade, 5. triangle entrance point, 6. rectangle outlet end.
Embodiment
As shown in Figure 1, a kind of impeller of rotary jet pump, comprise that central authorities are provided with the wheel disc 1 of through hole 2 and are positioned at the blade on wheel disc 1, wheel disc 1 and blade are one-body molded, blade is comprised of the linear leaf 3 arranging along radial direction and short blade 4, described linear leaf 3 and short blade 4 form by rectangle outlet end 6 and triangle entrance point 5, rectangle outlet end 6 and triangle entrance point 5 connect as one structure by circular arc, linear leaf 3 and short blade 4 are evenly spaced along the circumferential direction to distribute, the rectangle outlet end 6 of linear leaf 3 and short blade 4 be positioned on same circumference and with tangent to periphery be 90 °, the triangle entrance point 5 of linear leaf 3 and short blade 4 is 20 °-30 ° of deflections in the same direction.
The entrance point of linear leaf 3 is positioned at through hole 2 edges, and the distance between short blade 4 entrance points and the center of circle is the 30%-40% of wheel disc 1 radius; The outlet end of linear leaf 3 and short blade 4 and the distance between the center of circle are the 80%-85% of wheel disc radius.
The quantity of blade is 8-12, and its vane thickness is 3～8mm.
In use, preferably the quantity of blade is 12, and its vane thickness is 8mm, High Rotation Speed after impeller work, the liquid entering from through hole is along the radial direction diffusion of blade, and this kind of structure sacrificed under the condition of efficiency in little amplitude, well taken into account the cavitation performance of pump.Processing is simple, and suction performance is good.
The foregoing is only preferred embodiments of the present utility model; protection domain of the present utility model is not limited with above-mentioned mode of execution; in every case the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or is changed, and all should include in the protection domain of recording in claims.
Claims (4)
1. the impeller of a rotary jet pump, comprise that central authorities are provided with the wheel disc of through hole (2) (1) and are positioned at the blade on wheel disc (1), wheel disc (1) and blade are one-body molded, it is characterized in that: described blade is comprised of the linear leaf arranging along radial direction (3) and short blade (4), described linear leaf (3) and short blade (4) form by rectangle outlet end (6) and triangle entrance point (5), linear leaf (3) and short blade (4) are evenly spaced along the circumferential direction to distribute, the rectangle outlet end of linear leaf (3) and short blade (4) be positioned on same circumference and with tangent to periphery be 90 °, the triangle entrance point (5) of linear leaf (3) and short blade (4) is 20 °-30 ° of deflections in the same direction.
2. the impeller of a kind of rotary jet pump according to claim 1, is characterized in that: the entrance point of described linear leaf (3) is positioned at through hole (2) edge, and the distance between short blade (4) entrance point and the center of circle is the 30%-40% of wheel disc radius; The outlet end of linear leaf (3) and short blade (4) and the distance between the center of circle are the 80%-85% of wheel disc (1) radius.
3. the impeller of a kind of rotary jet pump according to claim 1 and 2, is characterized in that: described rectangle outlet end (6) and triangle entrance point (5) connect as one structure by circular arc.
4. the impeller of a kind of rotary jet pump according to claim 1 and 2, is characterized in that: the quantity of described blade is 8-12, and its vane thickness is 3～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482910.9U CN203441813U (en) | 2013-08-08 | 2013-08-08 | Impeller of rotating jet pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320482910.9U CN203441813U (en) | 2013-08-08 | 2013-08-08 | Impeller of rotating jet pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441813U true CN203441813U (en) | 2014-02-19 |
Family
ID=50092872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320482910.9U Expired - Fee Related CN203441813U (en) | 2013-08-08 | 2013-08-08 | Impeller of rotating jet pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203441813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895842A (en) * | 2015-05-13 | 2015-09-09 | 山东昊安金科新材料股份有限公司 | Spiral flow constant pressure pump |
-
2013
- 2013-08-08 CN CN201320482910.9U patent/CN203441813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895842A (en) * | 2015-05-13 | 2015-09-09 | 山东昊安金科新材料股份有限公司 | Spiral flow constant pressure pump |
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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: 20140219 Termination date: 20170808 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |