CN115929686A - Efficient anti-blocking sewage pump - Google Patents
Efficient anti-blocking sewage pump Download PDFInfo
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- CN115929686A CN115929686A CN202310188454.5A CN202310188454A CN115929686A CN 115929686 A CN115929686 A CN 115929686A CN 202310188454 A CN202310188454 A CN 202310188454A CN 115929686 A CN115929686 A CN 115929686A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The invention discloses a high-efficiency anti-blocking sewage pump which comprises a volute (1), a rotating shaft (2), a base (3), an impeller (4) and a water outlet pipe (11), wherein the impeller comprises a first wheel disc (41), a first blade (44), a second wheel disc (42), a second blade (45) and a third wheel disc (43) which are sequentially arranged along the axial direction, a first inlet (46) is formed in the center of the first wheel disc, and a middle inlet (47) is formed in the center of the second wheel disc; the method is characterized in that: the first blades comprise a plurality of first arc-shaped blades, the second blades comprise a plurality of second arc-shaped blades, all the first arc-shaped blades and all the second arc-shaped blades cover the range of 150-210 degrees in the circumferential direction, and the first blades and the second blades are symmetrically arranged around the center of the second wheel disc in the same projection view. The anti-blocking device can improve the anti-blocking performance of the sewage pump, reduce vibration and ensure the stable water outlet flow of the sewage pump, thereby improving the sewage conveying performance of the sewage pump.
Description
Technical Field
The invention relates to the technical field of liquid pumps, in particular to a high-efficiency anti-blocking sewage pump.
Background
The sewage pump belongs to one of centrifugal pumps, and can be applied to various working conditions needing to convey liquid containing impurities.
As shown in fig. 1, the conventional anti-clogging sewage pump includes a volute 1, a rotating shaft 2, a base 3, an impeller 4, and a water outlet pipe 11, wherein the lower end surface of the volute is connected with the base, the impeller is installed in a cavity formed by the volute, one end of the rotating shaft is provided with the impeller, the other end of the rotating shaft is connected to a motor, the water outlet pipe is arranged in the approximate tangential direction of the volute, the center of the lower end part of the volute is provided with a volute water inlet, and the base is provided with a plurality of base water inlets; impeller 4 includes first rim plate, second rim plate, third rim plate, first blade, second blade, first import, middle import, and first rim plate, second rim plate, third rim plate set up along the axial in proper order, are provided with first blade between first rim plate and the second rim plate, are provided with the second blade between second rim plate and the third rim plate, and first rim plate center is provided with first import, and import in the middle of second rim plate center is provided with. But the existing sewage pump still has the problems of poor anti-blocking performance and poor stability of water outlet flow.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a high-efficiency anti-blocking sewage pump, which can improve the anti-blocking performance of the sewage pump, reduce vibration and ensure the stable water outlet flow of the sewage pump through the design of a first blade and a second blade, thereby improving the sewage conveying performance of the sewage pump. It promotes the design of portion through the arc, can improve the pulverizability to impurity in the sewage, improves the water conservancy diversion nature of impeller runner to can further improve the anti-clogging performance of sewage pump, ensure that the play water flow of sewage pump is stable, thereby can improve the sewage transport performance of sewage pump.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-efficiency anti-blocking sewage pump comprises a volute (1), a rotating shaft (2), a base (3), an impeller (4) and a water outlet pipe (11), wherein the lower end face of the volute is connected with the base, the impeller is installed in a cavity formed by the volute, one end of the rotating shaft is provided with the impeller, the other end of the rotating shaft is connected to a motor, the water outlet pipe is arranged in the approximate tangential direction of the volute, a volute water inlet is formed in the center of the lower end part of the volute, and a plurality of base water inlets are formed in the base; the impeller (4) comprises a first wheel disc (41), a second wheel disc (42), a third wheel disc (43), first blades (44), second blades (45), a first inlet (46) and a middle inlet (47), wherein the first wheel disc, the second wheel disc and the third wheel disc are sequentially arranged along the axial direction; the method is characterized in that: the first blades (44) comprise a plurality of first arc-shaped blades, the second blades (45) comprise a plurality of second arc-shaped blades, all the first arc-shaped blades cover 150-210 degrees in the circumferential direction, all the second arc-shaped blades cover 150-210 degrees in the circumferential direction, and the first blades and the second blades are arranged in a central symmetry mode relative to the center of the second rotary disc (42) or the axis (O) of the rotating shaft (2) in the same projection view.
Further, all of the first arc-shaped blades cover an extent of 180 ° in the circumferential direction, and all of the second arc-shaped blades cover an extent of 180 ° in the circumferential direction.
Furthermore, the number of the first blades (44) is 2-4, and the number of the second blades (45) is 2-4.
Further, the two first blades (44) have different lengths, and the length of the first blade at the radial inner side is 1.1-1.4 times that of the first blade at the radial outer side; the two second blades (45) have different lengths, and the length of the radially inner second blade is 1.1 to 1.4 times the length of the radially outer second blade.
Further, arc promoting parts (48) are arranged on the two wheel disc side surfaces of the first wheel disc (41) corresponding to the second wheel disc (42), and/or arc promoting parts (48) are arranged on the two wheel disc side surfaces of the second wheel disc (42) corresponding to the third wheel disc (43); the arc promoting part is arranged between two adjacent first blades (44), and/or the arc promoting part is arranged between two adjacent second blades (45); and, the arc trajectory line of the arc promoting portion substantially coincides with the arc trajectory line of the first blade, and/or the arc trajectory line of the arc promoting portion substantially coincides with the arc trajectory line of the second blade.
Further, an end of one end of the arc promoting portion (48) is located on substantially the same radial line as an end of a corresponding one of the plurality of first blades (44).
Further, the arc promoting portion (48) comprises a protruding portion (481) and a recessed portion (482), the protruding portion comprises a first straight surface and a first arc surface which are connected, and the protruding portion protrudes into the impeller flow channel; the concave part comprises a second straight surface and a second arc-shaped surface which are connected, and the concave part is arranged towards the inner grooves of the first wheel disc (41) and the second wheel disc (42); the first plane and the second plane are arranged in a coplanar manner.
Further, the axial height of the protruding portion (481) is 0.1-0.2 times of the height of the first blade (44) in the same cross-sectional view, the axial depth of the recessed portion (482) is 0.1-0.2 times of the height of the first blade in the same cross-sectional view, and the width of the first arc-shaped surface or the second arc-shaped surface in the circumferential direction is 0.5-0.7 times of the height of the first blade in the same cross-sectional view.
Further, the arc promoting portion (48) of the side surface of the first wheel disc (41) is arranged in axial symmetry with the arc promoting portion of the side surface of the second wheel disc (42), and the arc promoting portions are arranged in the middle of two adjacent first blades (44).
According to the efficient anti-blocking sewage pump, due to the design of the first blade and the second blade, the anti-blocking performance of the sewage pump can be improved, vibration is reduced, the stable water outlet flow of the sewage pump is guaranteed, and therefore the sewage conveying performance of the sewage pump can be improved. It promotes the design of portion through the arc, can improve the pulverizability to impurity in the sewage, improves the water conservancy diversion nature of impeller runner to can further improve the anti-clogging performance of sewage pump, ensure that the play water flow of sewage pump is stable, thereby can improve the sewage transport performance of sewage pump.
Drawings
FIG. 1 is a schematic sectional view of a part of the efficient anti-clogging sewage pump of the present invention;
FIG. 2 is a schematic cross-sectional view of an impeller structure according to the present invention;
FIG. 3 is a schematic view of the blade structure of the impeller of the present invention;
FIG. 4 is a schematic view of the first blade and the second blade in the same projection view according to the present invention;
FIG. 5 is a cross-sectional view of the arc promoting portion of the present invention.
In the figure: the spiral casing 1, the rotating shaft 2, the base 3, the impeller 4, the water outlet/outlet pipe 11, the first wheel disc 41, the second wheel disc 42, the third wheel disc 43, the first blade 44, the second blade 45, the first inlet 46, the middle inlet 47, the arc promoting part 48, the convex part 481 and the concave part 482; "→" flows to the flow direction.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-5, a high-efficiency anti-clogging sewage pump includes a volute 1, a rotating shaft 2, a base 3, an impeller 4, and a water outlet pipe 11, wherein the lower end surface of the volute 1 is connected with the base 3, the impeller 4 is installed in a cavity formed by the volute 1, one end of the rotating shaft 2 is installed with the impeller 4, the other end is connected to a motor, the water outlet pipe 11 is arranged in the approximate tangential direction (circumferential tangential direction) of the volute 1, a volute water inlet is arranged in the center of the lower end of the volute 1, and a plurality of base water inlets are arranged on the base 3; impeller 4 includes first rim plate 41, second rim plate 42, third rim plate 43, first blade 44, second blade 45, first import 46, middle import 47, first rim plate 41, second rim plate 42, third rim plate 43 sets up along the axial in proper order, be provided with first blade 44 between first rim plate 41 and the second rim plate 42, be provided with second blade 45 between second rim plate 42 and the third rim plate 43, first rim plate 41 center is provided with first import 46, import 47 in the middle of second rim plate 42 center is provided with, its characterized in that: the first blades 44 include a plurality of first arc-shaped blades, the second blades 45 include a plurality of second arc-shaped blades, all the first arc-shaped blades cover 150-210 degrees in the circumferential direction, all the second arc-shaped blades cover 150-210 degrees in the circumferential direction, and the first blades and the second blades are arranged in a central symmetry manner (as shown in fig. 3-4) relative to the center of the second disk 42 or the axial center (O) of the rotating shaft 2 in the same projection view.
Fig. 3 isbase:Sub>A schematic structural diagram of the blade of the sectionbase:Sub>A-base:Sub>A and the section B-B in fig. 2, respectively, and fig. 4 isbase:Sub>A schematic structural diagram of the relative relationship between the first blade and the second blade in the same projection view. As shown in fig. 3-4, in a preferred embodiment, all of the first arcuate blades circumferentially cover an extent of 180 ° and all of the second arcuate blades circumferentially cover an extent of 180 °.
The number of the first blades 44 is 2 to 4, preferably 2, and the number of the second blades 45 is 2 to 4, preferably 2. The two first blades 44 have different lengths, and the length of the first blade 44 at the radial inner side is 1.1 to 1.5 times that of the first blade 44 at the radial outer side; the two second blades 45 have different lengths, and the length of the second blade 45 on the radially inner side is 1.1 to 1.5 times the length of the second blade 45 on the radially outer side.
According to the efficient anti-blocking sewage pump, due to the design of the first blade 44 and the second blade 45, the anti-blocking performance of the sewage pump can be improved, vibration is reduced, the stable water outlet flow of the sewage pump is guaranteed, and therefore the sewage conveying performance (including flow, pressure and the like) of the sewage pump can be improved.
Fig. 5 is a schematic cross-sectional view of the arc promoting portion along a direction substantially perpendicular to the length direction of the blade, and as shown in fig. 3 to 5, the arc promoting portions 48 are provided on two disk side surfaces of the first disk 41 corresponding to the second disk 42, and/or the arc promoting portions 48 are provided on two disk side surfaces of the second disk 42 corresponding to the third disk 43; moreover, the arc promoting portion 48 is disposed between two adjacent first blades 44, and/or the arc promoting portion 48 is disposed between two adjacent second blades 45; and, the arc trajectory line of the arc promoting portion 48 substantially coincides with the arc trajectory line of the first blade 44, and/or the arc trajectory line of the arc promoting portion 48 substantially coincides with the arc trajectory line of the second blade 45.
The end of one end of the arc promoting portion 48 is located on substantially the same radial line as the end of the corresponding one end of the plurality of first blades 44.
As shown in fig. 5, the arc promoting portion 48 includes a convex portion 481 and a concave portion 482, the convex portion 481 includes a first straight surface and a first arc surface which are connected, and the convex portion 481 is disposed to protrude into the impeller flow channel; the recessed portion 482 comprises a second straight surface and a second arc-shaped surface which are connected, and the recessed portion 482 is arranged in a groove manner towards the inner parts of the first wheel disc 41 and the second wheel disc 42; the first plane and the second plane are arranged in a coplanar manner.
The axial height of the projection 481 is 0.1 to 0.2 times, preferably 0.15 times, the height of the first blade 44 in the same sectional view; the axial depth of the recess 482 is 0.1-0.2 times, preferably 0.15 times, the height of the first vane 44 in the same cross-sectional view. The arc promoting part 48 has the function of crushing impurities in the sewage and guiding the liquid in the impeller flow passage.
The width of the first or second curved surface in the circumferential direction is 0.5 to 0.7 times, preferably 0.6 times, the height of the first vane 44 in the same sectional view.
The arc promoting portions 48 of the side surfaces of the first disk 41 and the second disk 42 are arranged axisymmetrically, and the arc promoting portions 48 are arranged at intermediate positions between two adjacent first blades 44.
According to the efficient anti-blocking sewage pump, due to the design of the arc-shaped promoting portion 48, the smashing performance of impurities in sewage can be improved, the flow guiding performance in an impeller flow channel is improved, the anti-blocking performance of the sewage pump can be further improved, the stable water outlet flow of the sewage pump is guaranteed, and the sewage conveying performance of the sewage pump can be improved.
In the present invention, "→" represents a flow direction, and "R" represents a rotation direction; "axial" means the direction of the axis of rotation of the pump and "circumferential" means the circumferential direction, consistent with the definition of common knowledge.
According to the efficient anti-blocking sewage pump, due to the design of the first blade 44 and the second blade 45, the anti-blocking performance of the sewage pump can be improved, vibration is reduced, the stable water outlet flow of the sewage pump is guaranteed, and therefore the sewage conveying performance (including flow, pressure and the like) of the sewage pump can be improved. Through the design of the arc promoting portion 48, the crushing performance of impurities in sewage can be improved, and the flow guide performance of an impeller flow channel is improved, so that the anti-blocking performance of the sewage pump can be further improved, the stable water outlet flow of the sewage pump is guaranteed, and the sewage conveying performance of the sewage pump can be improved.
It should be noted that all directional indicators (such as up, down, left, right, front, back, horizontal, vertical, etc.) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a certain posture (as shown in the drawings), and if the certain posture is changed, the directional indicators are changed accordingly, the "connection" may be a direct connection or an indirect connection, and the "setting", and "setting" may be directly or indirectly set.
The above-described embodiments are illustrative of the present invention and not restrictive, it being understood that various changes, modifications, substitutions and alterations can be made herein without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims (8)
1. A high-efficiency anti-blocking sewage pump comprises a volute (1), a rotating shaft (2), a base (3), an impeller (4) and a water outlet pipe (11), wherein the lower end surface of the volute is connected with the base, the impeller is installed in a cavity formed by the volute, one end of the rotating shaft is provided with the impeller, the other end of the rotating shaft is connected with a motor, the water outlet pipe is arranged in the approximate tangential direction of the volute, a volute water inlet is formed in the center of the lower end part of the volute, and a plurality of base water inlets are formed in the base; the impeller (4) comprises a first wheel disc (41), a second wheel disc (42), a third wheel disc (43), first blades (44), second blades (45), a first inlet (46) and a middle inlet (47), wherein the first wheel disc, the second wheel disc and the third wheel disc are sequentially arranged along the axial direction;
the method is characterized in that: the first blades (44) comprise a plurality of first arc-shaped blades, the second blades (45) comprise a plurality of second arc-shaped blades, all the first arc-shaped blades cover the range of 150-210 degrees in the circumferential direction, all the second arc-shaped blades cover the range of 150-210 degrees in the circumferential direction, and the first blades and the second blades are arranged in a centrosymmetric mode relative to the center of the second wheel disc (42) or the axis (O) of the rotating shaft (2) in the same projection view.
2. A high efficiency anti-clogging sewage pump as claimed in claim 1, wherein all of said first arcuate vanes circumferentially cover an extent of 180 ° and all of said second arcuate vanes circumferentially cover an extent of 180 °.
3. The high efficiency anti-clogging sewage pump according to claim 2, characterized in that said first vanes (44) are 2-4, said second vanes (45) are 2-4; the two first blades (44) have different lengths, and the length of the first blade at the radial inner side is 1.1-1.5 times that of the first blade at the radial outer side; the two second blades (45) have different lengths, and the length of the radially inner second blade is 1.1 to 1.5 times that of the radially outer second blade.
4. The efficient anti-clogging sewage pump as claimed in claim 1, wherein the arc promoting portions (48) are provided on two wheel disc sides of the first wheel disc (41) corresponding to the second wheel disc (42), and/or the arc promoting portions (48) are provided on two wheel disc sides of the second wheel disc (42) corresponding to the third wheel disc (43); the arc promoting part is arranged between two adjacent first blades (44), and/or the arc promoting part is arranged between two adjacent second blades (45); and, the arc trajectory line of the arc promoting portion substantially coincides with the arc trajectory line of the first blade, and/or the arc trajectory line of the arc promoting portion substantially coincides with the arc trajectory line of the second blade.
5. The high efficiency anti-clogging sewage pump of claim 4, characterized in that the end of one end of said arc-shaped promoting portion (48) is located on substantially the same radial line as the end of the corresponding end of the first plurality of vanes (44).
6. The efficient anti-clogging sewage pump of claim 5 wherein the curved promoting portion (48) comprises a protrusion (481) and a depression (482), the protrusion comprises a first flat surface and a first curved surface which are connected, and the protrusion protrudes into the impeller flow channel; the concave part comprises a second straight surface and a second arc-shaped surface which are connected, and the concave part is arranged towards the inner grooves of the first wheel disc (41) and the second wheel disc (42); the first plane and the second plane are arranged in a coplanar manner.
7. The high efficiency anti-clogging sewage pump of claim 6 wherein the axial height of the projection (481) is 0.1-0.2 times the height of the first blade (44) in the same cross-sectional view, the axial depth of the recess (482) is 0.1-0.2 times the height of the first blade in the same cross-sectional view, and the circumferential width of the first curved surface or the second curved surface is 0.5-0.7 times the height of the first blade in the same cross-sectional view.
8. The high efficiency anti-clogging sewage pump according to claim 7, wherein the arc promoting portion (48) of the side surface of the first wheel disc (41) is disposed axisymmetrically with the arc promoting portion of the side surface of the second wheel disc (42), and the arc promoting portions are disposed at the middle positions of the adjacent two first blades (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310188454.5A CN115929686A (en) | 2023-03-02 | 2023-03-02 | Efficient anti-blocking sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310188454.5A CN115929686A (en) | 2023-03-02 | 2023-03-02 | Efficient anti-blocking sewage pump |
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| Publication Number | Publication Date |
|---|---|
| CN115929686A true CN115929686A (en) | 2023-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310188454.5A Pending CN115929686A (en) | 2023-03-02 | 2023-03-02 | Efficient anti-blocking sewage pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335949A (en) * | 2023-04-28 | 2023-06-27 | 江苏大学流体机械温岭研究院 | Pump station for irrigation system and feed pump or fertilization pump thereof |
-
2023
- 2023-03-02 CN CN202310188454.5A patent/CN115929686A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116335949A (en) * | 2023-04-28 | 2023-06-27 | 江苏大学流体机械温岭研究院 | Pump station for irrigation system and feed pump or fertilization pump thereof |
| CN116335949B (en) * | 2023-04-28 | 2024-03-08 | 江苏大学流体机械温岭研究院 | Pump station for irrigation system and feed pump or fertilization pump thereof |
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