CN209800349U - Impeller for centrifugal water pump - Google Patents
Impeller for centrifugal water pump Download PDFInfo
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- CN209800349U CN209800349U CN201920037638.0U CN201920037638U CN209800349U CN 209800349 U CN209800349 U CN 209800349U CN 201920037638 U CN201920037638 U CN 201920037638U CN 209800349 U CN209800349 U CN 209800349U
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Abstract
The utility model relates to an impeller for a centrifugal water pump, which comprises a left side plate, a right side plate and an impeller plate body arranged between the left side plate and the right side plate; the left side plate comprises a first convex plate and a first bottom plate, the first convex plate is coaxially arranged on the first bottom plate, and arc transition is arranged between the first convex plate and the first bottom plate; the right side plate comprises a second convex plate and a second bottom plate, and the second convex plate is coaxially arranged on the second bottom plate; the impeller plate body comprises a cylindrical barrel, two ends of the cylindrical barrel are fixedly connected with the left side plate and the right side plate respectively, a plurality of rotary impellers are arranged on the cylindrical barrel, and the rotary impellers are arranged between the first bottom plate and the second bottom plate; the centers of the first convex plate, the first bottom plate, the second convex plate, the second bottom plate and the cylinder are provided with a communicating hole. The impeller pump has the advantages of reasonable structural design, long service life, high overall strength, reliability and stability in operation and the like, can reduce the impact of water coming out between blades of the impeller and a pump cavity, and reduces turbulence and water flow energy loss, thereby improving the efficiency of the water pump.
Description
Technical Field
the utility model relates to a centrifugal water pump technical field especially relates to an impeller for centrifugal water pump.
Background
Centrifugal pump (centrifugal pump) refers to the leaning leafThe centrifugal pump is operated by centrifugal movement of water caused by rotation of the impeller. Before the water pump is started, the pump shell and the water suction pipe are filled with water, then the motor is started, the pump shaft drives the impeller and the water to rotate at a high speed, the water is thrown to the outer edge of the impeller to be thrown into a water pressure pipeline of the water pump through a flow channel of the volute-shaped pump shell. Centrifugal pump uses comparatively extensively in petroleum, chemical industry field, and traditional centrifugal pump's pump head can correspond the impeller of many well different external diameters usually, however when adopting same section centrifugal pump to carry out the operation, because the water that the difference of user's demand easily caused the impeller runner flies out through the impeller tangent line, and interact in the space of pump chamber produces the turbulent flow, and water can the partial loss at the energy meeting that the impeller obtained, and water pump efficiency reduces. If the required flow and the lift are larger thanthe parameters which can be reached by the impeller can only be selected from a large pump head; if the required flow and the lift are less thanThe parameters reached by the impeller can only select a small pump head; traditional centrifugal water pump, for satisfying different customer demands, behind the cutting impeller external diameter, the efficiency of water pump can reduce. The utility model discloses just based on under this research background and propose, aim at providing an impeller for centrifugal pump to improve the work efficiency of water pump, reduce energy loss.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the plastering tool in the prior art, the utility model aims to provide an impeller for a centrifugal water pump, which has the advantages of reasonable structural design, long service life, high overall strength, reliable and stable operation and the like, can reduce the impact of water coming out between each blade of the impeller and a pump cavity, reduce the turbulent flow and the energy loss of water flow, and further improve the efficiency of the water pump.
In order to achieve the above purpose, the utility model discloses a take off technical scheme and realize:
An impeller for a centrifugal water pump, which is arranged in a pump cavity of the centrifugal water pump; the impeller comprises a left side plate, a right side plate and an impeller plate body arranged between the left side plate and the right side plate; the left side plate comprises a first convex plate and a first bottom plate, the first convex plate is coaxially arranged on the first bottom plate, and arc transition is arranged between the first convex plate and the first bottom plate; the outer diameter of the first convex plate is smaller than that of the first bottom plate; the right side plate comprises a second convex plate and a second bottom plate, and the second convex plate is coaxially arranged on the second bottom plate; the outer diameter of the second convex plate is smaller than that of the second bottom plate; the impeller plate body comprises a cylindrical barrel, two ends of the cylindrical barrel are fixedly connected with the left side plate and the right side plate respectively, a plurality of rotary impellers are arranged on the cylindrical barrel, and the rotary impellers are arranged between the first bottom plate and the second bottom plate; and the centers of the first convex plate, the first bottom plate, the second convex plate, the second bottom plate and the cylinder are provided with a communicating hole.
As a further optimization of the scheme, the cylindrical barrel is a hollow barrel body with hollow ends and through holes at two ends; and reinforcing ribs are arranged between every two rotating impellers.
As a further optimization of the above scheme, reinforcing ribs are embedded on both the first bottom plate and the second bottom plate.
As a further optimization of the scheme, a shaft sleeve is embedded on the inner wall of the hollow cylinder.
adopt the utility model discloses an impeller for centrifugal water pump has following beneficial effect:
(1) The utility model discloses a set up left side board and right board at the both ends of impeller body, the water pump during operation, water follow the blade along the tangent line departure back, from pump chamber exit departure after mutually colliding in the sideboard of impeller, water from the blade along the tangent line departure back with pump chamber in the coarse cast iron collision, energy loss can reduce.
(2) The utility model discloses an impeller for centrifugal pump is through the experiment, impeller of minimum external diameterLeft and right side panels that remain largestand then, the highest point efficiency can reach 67.5-68%, and compared with the traditional centrifugal pump impeller, the working efficiency can be improved by about 3.5-4%.
(3) The utility model discloses a set up the strengthening rib and set up the stiffening rib on first bottom plate and second bottom plate between rotatory impeller, can improve the holistic structural strength of impeller, improve its life.
(4) The shaft sleeve is embedded on the inner wall of the hollow cylinder body, so that the impeller can be conveniently installed, and the wear-resisting strength of the hollow cylinder body is improved.
Drawings
fig. 1 is a schematic structural diagram of the impeller in the centrifugal pump for the centrifugal water pump of the present invention.
fig. 2 is a schematic structural diagram of the impeller for centrifugal water pump of the present invention, wherein (a) is a front view of the impeller, and (b) is a side view of the impeller.
Detailed Description
The impeller for centrifugal water pump of the present invention will be described in detail with reference to the accompanying drawings 1-2.
An impeller for a centrifugal water pump, wherein the impeller 1 is arranged in a pump cavity 3 of a centrifugal water pump 2; the impeller comprises a left side plate 4, a right side plate 5 and an impeller plate body 6 arranged between the left side plate and the right side plate; the left side plate comprises a first convex plate 7 and a first bottom plate 8, the first convex plate is coaxially arranged on the first bottom plate, and an arc transition 9 is arranged between the first convex plate and the first bottom plate; the outer diameter of the first convex plate is smaller than that of the first bottom plate; the right side plate comprises a second convex plate 10 and a second bottom plate 11, and the second convex plate is coaxially arranged on the second bottom plate; the outer diameter of the second convex plate is smaller than that of the second bottom plate; the impeller plate body comprises a cylindrical barrel, two ends of the cylindrical barrel are fixedly connected with the left side plate and the right side plate respectively, a plurality of rotary impellers 12 are arranged on the cylindrical barrel, and the rotary impellers are arranged between the first bottom plate and the second bottom plate; and the centers of the first convex plate, the first bottom plate, the second convex plate, the second bottom plate and the cylinder are provided with a communicating hole. The cylindrical barrel is a hollow barrel body with hollow holes at two ends; and reinforcing ribs are arranged between every two rotating impellers. Reinforcing ribs are embedded in the first bottom plate and the second bottom plate. And a shaft sleeve is embedded on the inner wall of the hollow cylinder.
Will the utility model discloses an impeller mounting is in centrifugal pump to do following contrast test with it:
Comparative example:
The external diameter of the impeller is 285mm, the flow Q of the centrifugal water pump is 100m3H, the lift H is 20.5 m;
The utility model discloses an impeller internal diameter is provided with the sideboard with the same impeller external diameter of comparative example with the difference outside the impeller, specifically as follows:
The diameters of the middle bottom plates of the left side plate and the right side plate of the impeller are all set to be 329mm, the diameters of the convex plates are all set to be 285mm, and the flow Q of the centrifugal water pump is 100m3H, the lift H is 20.5 m;
The average value of the working efficiency is calculated through multiple field tests to obtain: the work efficiency of comparative example is 64%, and the utility model discloses a work efficiency is 67.5%, and efficiency has promoted 3.5 percentage points, and the effect is because not set up the impeller of sideboard, simultaneously, water pump during operation, water follow the blade along the tangent line departure back, from pump chamber exit departure after mutually colliding in the sideboard of impeller, water follows the blade along the tangent line departure back and pump chamber in the coarse cast iron collision, energy loss can reduce.
The embodiments described above are intended to facilitate one of ordinary skill in the art to understand and practice the invention. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention are within the protection scope of the present invention.
Claims (4)
1. The utility model provides an impeller for centrifugal water pump which characterized in that: the impeller (1) is arranged in a pump cavity (3) of the centrifugal water pump (2); the impeller comprises a left side plate (4), a right side plate (5) and an impeller plate body (6) arranged between the left side plate and the right side plate; the left side plate comprises a first convex plate (7) and a first bottom plate (8), the first convex plate is coaxially arranged on the first bottom plate, and an arc transition (9) is arranged between the first convex plate and the first bottom plate; the outer diameter of the first convex plate is smaller than that of the first bottom plate; the right side plate comprises a second convex plate (10) and a second bottom plate (11), and the second convex plate is coaxially arranged on the second bottom plate; the outer diameter of the second convex plate is smaller than that of the second bottom plate; the impeller plate body comprises a cylindrical barrel, two ends of the cylindrical barrel are fixedly connected with the left side plate and the right side plate respectively, a plurality of rotary impellers (12) are arranged on the cylindrical barrel, and the rotary impellers are arranged between the first bottom plate and the second bottom plate; and the centers of the first convex plate, the first bottom plate, the second convex plate, the second bottom plate and the cylinder are provided with a communicating hole.
2. An impeller for a centrifugal water pump according to claim 1, wherein: the cylindrical barrel is a hollow barrel body with hollow holes at two ends; and reinforcing ribs are arranged between every two rotating impellers.
3. An impeller for a centrifugal water pump according to claim 2, wherein: reinforcing ribs are embedded in the first bottom plate and the second bottom plate.
4. An impeller for a centrifugal water pump according to claim 3, characterized in that: and a shaft sleeve is embedded on the inner wall of the hollow cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920037638.0U CN209800349U (en) | 2019-01-10 | 2019-01-10 | Impeller for centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920037638.0U CN209800349U (en) | 2019-01-10 | 2019-01-10 | Impeller for centrifugal water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209800349U true CN209800349U (en) | 2019-12-17 |
Family
ID=68819721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920037638.0U Active CN209800349U (en) | 2019-01-10 | 2019-01-10 | Impeller for centrifugal water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209800349U (en) |
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2019
- 2019-01-10 CN CN201920037638.0U patent/CN209800349U/en active Active
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