CN217950759U - Circulating water pump's rotor part - Google Patents
Circulating water pump's rotor part Download PDFInfo
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- CN217950759U CN217950759U CN202221090171.4U CN202221090171U CN217950759U CN 217950759 U CN217950759 U CN 217950759U CN 202221090171 U CN202221090171 U CN 202221090171U CN 217950759 U CN217950759 U CN 217950759U
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- cover plate
- rear cover
- impeller
- cover plates
- blades
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Abstract
The utility model discloses a rotor part of a circulating water pump, which comprises a pair of impellers which are distributed on a pump shaft in a mirror symmetry manner, wherein each impeller comprises an impeller blade, one side of each impeller blade is provided with a front cover plate used for connecting the pump shaft, the other side of each impeller is provided with an annular rear cover plate, the impellers, the front cover plates and the rear cover plates are coaxial, and the outer diameters of the front cover plates and the rear cover plates are smaller than the outer diameter of each impeller; a plurality of blades are uniformly arranged on the outer ring surface of the rear cover plate along the circumferential direction of the rear cover plate, and extend from the end surface of one side of the rear cover plate to the end surface of the other side of the rear cover plate; the blades on the back cover plates of the two impellers are distributed in a staggered mode. The utility model discloses a rotor part has cancelled parts such as the structural axle sleeve of tradition, throat bush, axle sleeve nut, and the overall structure design is retrencied rationally more to, set up the blade of crisscross distribution on the back apron, do benefit to the pump sending of rivers, the condition of reducible export backward flow can effectively improve water pump efficiency.
Description
Technical Field
The utility model relates to a circulating water pump technical field especially relates to a circulating water pump's rotor part.
Background
The circulating water pump is widely applied to industries such as municipal water supply and drainage, water supply plants, river water taking, hydraulic engineering and the like. However, the rotor part of the existing partial circulating water pump is unreasonable in structural arrangement, so that the hydraulic problems of bypass flow, flow shedding and the like of water flow at an impeller suction port generally exist, the efficiency of the water pump and the cavitation performance of the water pump can be reduced, and the hydraulic vibration of the rotor part can be caused finally; the carbon neutralization device has the technical problems of inconvenient maintenance, poor vibration resistance, short service life, easy occurrence of mechanical fatigue damage to a rotor part and the like, and is not suitable for the current requirements of energy conservation and emission reduction on carbon neutralization.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a circulating water pump's rotor part under the condition of improving circulating water pump's single-stage lift and rotational speed, can effectively reduce the cavitation surplus of water pump, has reduced the export backward flow, has improved water pump efficiency, in addition, has cancelled parts such as traditional structural axle sleeve, throat bush, axle sleeve nut, and overall structure designs and retrencies rationally more.
The technical scheme of the utility model as follows:
a rotor component of a circulating water pump comprises a pair of impellers which are distributed on a pump shaft in a mirror symmetry mode, each impeller comprises an impeller blade, a front cover plate used for being connected with the pump shaft is arranged on one side of each impeller blade, an annular rear cover plate is arranged on the other side of each impeller blade, the impeller blades, the front cover plates and the rear cover plates are coaxial, and the outer diameters of the front cover plates and the rear cover plates are smaller than the outer diameter of the impeller blades; a plurality of blades are uniformly arranged on the outer ring surface of the rear cover plate along the circumferential direction of the rear cover plate, and extend from the end surface of one side of the rear cover plate to the end surface of the other side of the rear cover plate; the blades on the back cover plates of the two impellers are distributed in a staggered mode.
The working principle of the technical scheme is as follows:
the utility model discloses a rotor part is constituteed to two impeller structures that are radial symmetric distribution and constitute by impeller blade, front shroud and back shroud, has cancelled parts such as traditional structural axle sleeve, throat bush, axle sleeve nut, and overall structure designs and retrencies rationally more to, set up the blade of crisscross distribution on the back shroud, do benefit to the pump sending of rivers, the condition of reducible export backward flow can effectively improve water pump efficiency.
In a further technical scheme, two the sealed laminating of the terminal surface of the back shroud of impeller, the rotor part that two impellers are constituteed is hollow structure, the weight of reducible whole equipment, and the leakproofness of rotor part inner chamber can be guaranteed in the sealed laminating of the back shroud of two impellers.
In a further technical scheme, the extending direction of the blades is inclined relative to the radial direction of the rear cover plate, and under the condition that outlet backflow is fully considered, hydraulic pulsation can be reduced.
In a further technical scheme, an included angle between each blade and the outer ring surface of the rear cover plate is an acute angle larger than 45 degrees, and the blades are inclined towards the rotating advancing direction of the pump shaft, so that pumping of water flow is facilitated.
In a further technical scheme, the rear cover plate is conical, and the relatively smaller end face of the rear cover plate is far away from the impeller blades.
The utility model has the advantages that:
the utility model discloses a rotor part is constituteed to two impeller structures that are radial symmetric distribution and constitute by impeller blade, front shroud and back shroud, has cancelled parts such as traditional structural axle sleeve, throat bush, axle sleeve nut, and overall structure designs and retrencies rationally more to, set up the blade of crisscross distribution on the back shroud, do benefit to the pump sending of rivers, the condition of reducible export backward flow can effectively improve water pump efficiency.
Drawings
Fig. 1 is a schematic view of a rotor assembly according to an embodiment of the present invention.
Description of the reference numerals:
01. a pump shaft; 02. a front cover plate; 03. a rear cover plate; 04. a first impeller; 05. a second impeller; 06. a blade.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Example (b):
a rotor part of a circulating water pump is shown in figure 1 and comprises two impellers which are arranged on a pump shaft 01 in a mirror symmetry mode, namely a first impeller 04 and a second impeller 05, wherein each impeller comprises an impeller blade, a front cover plate 02 used for being connected with the pump shaft 01 is arranged on one side of each impeller blade, a rear cover plate 03 is arranged on the other side of each impeller blade, each rear cover plate 03 is in a conical cylinder shape, the relatively small end face of each rear cover plate 03 is far away from each impeller blade, each front cover plate 02 and each rear cover plate 03 are coaxial, and the outer diameters of the front cover plates 02 and the rear cover plates 03 are smaller than the outer diameter of each impeller blade; a plurality of blades 06 are uniformly arranged on the outer annular surface of the rear cover plate 03 along the circumferential direction of the rear cover plate, and the blades 06 extend from one side end surface of the rear cover plate 03 to the other side end surface thereof; the blades 06 on the back cover plates 03 of the two impellers are distributed in a staggered manner.
In this embodiment, the sealed laminating of the terminal surface of the back shroud 03 of two impellers, the rotor part that two impellers are constituteed is hollow structure, the weight of reducible whole equipment, and the leakproofness of rotor part inner chamber can be guaranteed in the sealed laminating of the back shroud 03 of two impellers.
The utility model discloses a rotor part is constituteed to two impeller structures that are radial symmetric distribution and constitute by impeller blade, front shroud 02 and back shroud 03, has cancelled parts such as traditional structural axle sleeve, throat bush, axle sleeve nut, and overall structure design retrencies rationally more to, set up the blade 06 of crisscross distribution on back shroud 03, do benefit to the pump sending of rivers, the condition of reducible export backward flow can effectively improve water pump efficiency.
In another embodiment, as shown in fig. 1, the extending direction of the blades 06 is inclined with respect to the radial direction of the back cover plate 03, which in turn reduces the hydraulic pulsation, while taking into account the outlet return flow.
In another embodiment, the included angle between the vane 06 and the outer annular surface of the back cover 03 is an acute angle larger than 45 °, and the vane 06 is inclined towards the rotation advancing direction of the pump shaft 01, so as to be more beneficial to pumping water flow.
The above-mentioned embodiments only express the specific implementation manner of the present invention, and the description thereof is specific and detailed, but not to be understood as the limitation of the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention.
Claims (5)
1. The rotor component of the circulating water pump is characterized by comprising a pair of impellers which are distributed on a pump shaft in a mirror symmetry mode, wherein each impeller comprises an impeller blade, a front cover plate used for being connected with the pump shaft is arranged on one side of each impeller blade, an annular rear cover plate is arranged on the other side of each impeller blade, the impeller blades, the front cover plates and the rear cover plates are coaxial, and the outer diameters of the front cover plates and the rear cover plates are smaller than the outer diameter of each impeller blade; a plurality of blades are uniformly arranged on the outer annular surface of the rear cover plate along the circumferential direction of the rear cover plate, and the blades extend from the end surface of one side of the rear cover plate to the end surface of the other side of the rear cover plate; blades on the back cover plates of the two impellers are distributed in a staggered mode.
2. A rotor component of a water circulating pump according to claim 1, wherein the end faces of the back cover plates of the two impellers are in sealing engagement.
3. A rotor component of a water circulating pump according to claim 1, wherein the vanes extend in an inclined manner with respect to the radial direction of the backplate.
4. A rotor component of a circulating water pump according to claim 1 or 3, wherein the angle between the vanes and the outer annular surface of the back cover plate is an acute angle greater than 45 °.
5. A rotor component of a water circulating pump according to claim 1, wherein the backplate is of conical cylindrical shape, the relatively small end face of the backplate being remote from the impeller blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090171.4U CN217950759U (en) | 2022-05-09 | 2022-05-09 | Circulating water pump's rotor part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221090171.4U CN217950759U (en) | 2022-05-09 | 2022-05-09 | Circulating water pump's rotor part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217950759U true CN217950759U (en) | 2022-12-02 |
Family
ID=84215468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221090171.4U Active CN217950759U (en) | 2022-05-09 | 2022-05-09 | Circulating water pump's rotor part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217950759U (en) |
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2022
- 2022-05-09 CN CN202221090171.4U patent/CN217950759U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230906 Address after: East Section of Huitong Avenue, Economic Development Zone, Dazhou City, Sichuan Province Patentee after: XINDA PUMP & VALVE Co.,Ltd. Address before: E24, Floor 602.6, Yongdong Road, Jiangnan District, Seoul Special City, South Korea (107, Sanchengdong Magellan) Patentee before: Hanyang Fluid Power Technology Research Institute |