CN217129901U - Vortex type curved surface impeller - Google Patents
Vortex type curved surface impeller Download PDFInfo
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- CN217129901U CN217129901U CN202220749416.3U CN202220749416U CN217129901U CN 217129901 U CN217129901 U CN 217129901U CN 202220749416 U CN202220749416 U CN 202220749416U CN 217129901 U CN217129901 U CN 217129901U
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- curved surface
- cover plate
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- vortex
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Abstract
A vortex curved surface impeller comprises a front cover plate, a rear cover plate arranged above the front cover plate and a water inlet arranged in the middle of the front cover plate, wherein a front annular curved surface which is narrow at the bottom and wide at the top is arranged on the upper surface of the front cover plate; the lower surface of the rear cover plate is provided with a rear annular curved surface which is narrow at the bottom and wide at the top; a plurality of blades which are uniformly distributed in the circumferential direction are arranged between the front annular curved surface and the rear annular curved surface; the side wall of one side of the blade is inwards sunken to form an outer curved surface, and the side wall of the other side of the blade is outwards protruded to form an inner curved surface; the outer curved surface of one of the blades is opposite to the inner curved surface adjacent to the outer curved surface; a drainage channel is arranged between the outer curved surface of one blade and the inner curved surface adjacent to the outer curved surface. The utility model discloses an eddy current formula curved surface impeller need not to change the motor that has faster rotational speed, just can effectively improve the suction of impeller, forms the stronger vortex of the velocity of flow, effectively improves the transport efficiency of rivers.
Description
Technical Field
The utility model relates to an impeller, especially an eddy current type curved surface impeller.
Background
The impeller is a device used on a water pump, which plays the role of absorbing outside water flow and conveying the water flow towards the water outlet joint of the water pump, the traditional impeller generally comprises a front cover plate, a rear cover plate and blades, a plurality of blades are uniformly distributed between the front cover plate and the rear cover plate in a circumferential manner, when the impeller rotates, the impeller generates suction force, the outside water flow enters a space between the front cover plate and the rear cover plate through a water inlet in the center of the front cover plate, then the water flow is thrown out to the outside through a channel between adjacent blades under the action of centrifugal force, so that the water flow is conveyed towards the water outlet joint of the water pump, when the impeller rotates, the impeller drives the water flow to rotate, so that vortex is formed, the suction force of the impeller comes from the vortex, therefore, the faster the vortex flow is, the larger the suction force of the impeller is, and the higher the water conveying efficiency of the impeller is, however, the rotating speed of the motor for driving the impeller to rotate is constant, in order to increase the flow rate of the eddy current, the resistance of the water flow is generally reduced by changing the bending angle of the blades, the flow of the water flow is accelerated, but only by changing the bending angle of the blades, the acceleration effect which can be achieved is very limited, the suction force which can be improved by the impeller is also very limited, the efficiency of the impeller for conveying the water flow cannot be effectively improved, and if the efficiency is improved by replacing the motor with higher rotating speed, the cost of the water flow is seriously increased.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide an eddy current type curved surface impeller, it need not to change the motor that has faster rotational speed, just can effectively improve the suction of impeller, forms the stronger vortex of the velocity of flow, effectively improves the transport efficiency of rivers.
The utility model provides a technical scheme that above-mentioned technical problem adopted does:
the utility model discloses an eddy current type curved surface impeller, including the front shroud, locate the back shroud of front shroud top and locate the water inlet at front shroud middle part, its characterized in that: the upper surface of the front cover plate is provided with a front annular curved surface which is narrow at the bottom and wide at the top; the lower surface of the rear cover plate is provided with a rear annular curved surface which is narrow at the bottom and wide at the top; a plurality of blades which are uniformly distributed in the circumferential direction are arranged between the front annular curved surface and the rear annular curved surface; the side wall of one side of the blade is inwards concave to form an outer curved surface, and the side wall of the other side of the blade is outwards convex to form an inner curved surface; the outer curved surface of one of the blades is opposite to the inner curved surface adjacent to the outer curved surface; a drainage channel is arranged between the outer curved surface of one blade and the inner curved surface adjacent to the outer curved surface.
The inner curved surface and the outer curved surface are both provided with a pressurizing groove, the inner end port of the pressurizing groove is positioned on the inner end surface of the blade, and the outer end port of the pressurizing groove is positioned on the outer end surface of the blade; the groove width of the pressurizing groove gradually decreases towards the direction far away from the axle center of the front cover plate.
A plurality of uniformly distributed spacing blocks are arranged in the pressurizing groove; the side wall of one side of the spacer block, which is far away from the outer end of the pressurizing groove, is provided with a guide inclined plane, and the guide inclined plane inclines towards the outer end direction of the blade; the inner end edge of the guide inclined plane is coplanar with the bottom of the pressurizing groove.
A plurality of water through holes which are uniformly distributed are formed in the guide inclined plane and penetrate through the partition blocks; the aperture of the water through hole gradually decreases towards the direction of the notch at the outer end of the pressurizing groove.
The inner wall of the water inlet is provided with a spiral acceleration groove.
The outer diameter of the front cover plate is larger than that of the rear cover plate.
The utility model has the advantages that:
compared with the prior art, adopt the utility model discloses annular curved surface before the accessible of structure, back annular curved surface guides rivers, influence the condition of the vortex velocity of flow on the contrary when avoiding rivers to outwards flow from the impeller, effectively improve the velocity of flow of vortex, and can utilize inner curved surface and outer curved surface to further guide rivers, further improve the velocity of flow of vortex, form stronger vortex, thereby effectively improve the water delivery efficiency of impeller, even not change the motor that has faster rotational speed, still can guarantee the water delivery efficiency of rivers in the at utmost.
Drawings
Fig. 1 is a schematic structural view of the vortex curved impeller of the present invention;
fig. 2 is a schematic structural view of the vortex curved impeller of the present invention when the pressure increasing groove is provided.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 and 2, the present invention provides an eddy current type curved impeller, which includes a front cover plate 1, a rear cover plate 2 disposed above the front cover plate 1, and a water inlet 3 disposed in the middle of the front cover plate 1, wherein a front annular curved surface 4 with a narrow lower part and a wide upper part is disposed on the upper surface of the front cover plate 1; the lower surface of the rear cover plate 2 is provided with a rear annular curved surface 5 which is narrow at the bottom and wide at the top; a plurality of blades 6 which are uniformly distributed in the circumferential direction are arranged between the front annular curved surface 4 and the rear annular curved surface 5; the side wall of one side of the blade 6 is inwards concave to form an outer curved surface 7, and the side wall of the other side of the blade 6 is outwards convex to form an inner curved surface 8; the outer curved surface 7 of one of the blades 6 is opposite to the inner curved surface 8 adjacent to the outer curved surface; a drainage channel 9 is arranged between the outer curved surface 7 of one blade 6 and the inner curved surface 8 adjacent to the outer curved surface.
The inner curved surface 8 and the outer curved surface 7 are both provided with a pressurizing groove 10, the inner end port of the pressurizing groove 10 is positioned on the inner end surface of the blade 6, and the outer end port of the pressurizing groove 10 is positioned on the outer end surface of the blade 6; the groove width of the pressurizing groove 10 gradually decreases toward the direction away from the axis of the front cover plate 1.
A plurality of uniformly distributed spacing blocks 11 are arranged in the pressurizing groove 10; the side wall of the spacer block 11 far away from the outer end of the pressurizing groove 10 is provided with a guide inclined surface 12, and the guide inclined surface 12 inclines towards the outer end direction of the blade 6; the inner end edge of the guide inclined plane 12 is coplanar with the groove bottom of the pressurizing groove 10.
A plurality of water through holes 13 which are uniformly distributed are formed in the guide inclined plane 12, and the water through holes 13 penetrate through the partition blocks 11; the aperture of the water through hole 13 gradually decreases towards the direction of the outer end notch of the pressurizing groove 10.
And a spiral acceleration groove 14 is formed in the inner wall of the water inlet 3.
The outer diameter of the front cover plate 1 is larger than that of the rear cover plate 2.
The utility model discloses a use method as follows:
when the motor shaft of the motor of water pump drives the impeller and rotates, the impeller that is located the water pump intracavity of intaking this moment then can take place rotatoryly, and when the impeller was rotatory, the rivers that the impeller then can drive the intracavity of intaking rotated, formed the vortex to make the impeller produce suction, constantly inhale external rivers to the water pump in, finally flow through the water connectors who link up mutually with the intake antrum, in order to supply the use.
When external rivers are absorb by the impeller, external rivers then can enter into the space between front shroud 1 and back shroud 2 through water inlet 3, the orbit along the drainage channel 9 between the adjacent blade 6 is outwards thrown away by the centrifugal force of impeller rotation production afterwards, and all the blade 6 crooked directions are all unanimous, consequently all the crooked directions of the drainage channel 9 between the adjacent blade 6 are all unanimous, thereby guarantee to be unanimous from the water flow orbit that drainage channel 9 flows, when rivers are thrown away outside the impeller from the outer end port of drainage channel 9, can be smooth and easy melt in the vortex of impeller outer lane, improve the velocity of flow of vortex to a certain extent.
Although the flow guide channel 9 is located between adjacent blades 6, the flow guide channel is actually formed by surrounding the adjacent blades 6, the upper surface of the front cover plate 1 and the lower surface of the rear cover plate 2, the upper surface of the front cover plate 1 is provided with a front annular curved surface 4 with a narrow lower part and a wide upper part, and the lower surface of the rear cover plate 2 is provided with a rear annular curved surface 5 with a narrow lower part and a wide upper part, so that the front annular curved surface 4 and the rear annular curved surface 5 can also play a role in guiding, the water flow inclines towards the oblique upper part while flowing outwards along the flow guide channel 9, the water flow of the traditional impeller is thrown out and radiates outwards in a planar state, although the mode can also blend in the existing vortex, a pressure can also be formed, the vortex is directly cut off like linear cutting, the original flowing stagnation of the vortex is caused, the original flow speed of the vortex is reduced along with the flow guide channel, even if the impeller is continuously sent into the vortex to send the subsequent water flow into the vortex, make up the velocity of flow that descends before, the final actual velocity of flow of vortex is almost the same with original velocity of flow, and when rivers flow to oblique top under the guide of annular curved surface 4 and back annular curved surface 5 in the front, then can make by the outer multichannel rivers of being thrown away the impeller form similar wide conical surface rivers down narrow, thereby make it change into face and face contact with the inboard contact of original vortex, can not appear leading to the obstructed condition of vortex flow with the vortex cutting, thereby make by the outer multichannel rivers of being thrown away the impeller better and faster melt into the vortex, further improve the velocity of flow of vortex.
Because the side wall of one side of each blade 6 is inwards sunken to form an outer curved surface 7, the side wall of the other side of each blade 6 is outwards protruded to form an inner curved surface 8, the outer curved surface 7 of one blade 6 is opposite to the inner curved surface 8 adjacent to the outer curved surface, when water flows outwards along the drainage channel 9, the water flows outwards along the track of the inner curved surface 8 and the track of the outer curved surface 7, the outer curved surface 7 is different from a smooth curved surface, when the protruded inner curved surface 8 and the sunken outer curved surface 7 guide the water flow to flow, the water flow can be automatically pressed to the sunken outer curved surface 7, the outer curved surface 7 is arranged on the outer side of each blade 6 and is just consistent with the bending direction of the blade 6, and therefore, when the water flow flows through the drainage channel 9, the effect of pushing the water flow is achieved, the flow speed of the water flow thrown out of the impeller is further improved, and the flow speed of the vortex of the outer ring of the impeller is further improved.
In conclusion, the utility model discloses annular curved surface 4 before the accessible, back annular curved surface 5 guides rivers, influence the condition of the vortex velocity of flow on the contrary when avoiding rivers outwards to flow from the impeller, effectively improve the velocity of flow of vortex, and can utilize inner curved surface 8 and outer curved surface 7 to further guide rivers, further improve the velocity of flow of vortex, form stronger vortex, thereby effectively improve the water delivery efficiency of impeller, even not change the motor that has faster rotational speed, still can guarantee the water delivery efficiency of rivers in the at utmost.
All be equipped with a pressure boost groove 10 on interior curved surface 8 and the outer curved surface 7, pressure boost groove 10 inner end port is located blade 6 inner end terminal surface, pressure boost groove 10 outer end port is located blade 6 outer end terminal surface, when rivers flow through drainage channel 9, then can be crowded under hydraulic effect to the pressure boost groove 10 on the blade 6 lateral wall in the rivers both sides, and the groove width of pressure boost groove 10 is descending progressively towards the direction of keeping away from 1 axle center of front shroud, along with the groove width constantly narrows, rivers in pressure boost groove 10 then can constantly be extrudeed, the water pressure in pressure boost groove 10 rises thereupon, thereby realize the improvement of the rivers velocity of flow in pressure boost groove 10, when rivers both sides velocity of flow increase, then can drive the velocity of flow of whole rivers automatically, when high velocity of flow fuses to the vortex, can guarantee the velocity of flow of vortex in the at utmost.
The pressure increasing groove 10 is internally provided with a plurality of uniformly distributed spacing blocks 11, one side wall of each spacing block 11 far away from the outer end of the pressure increasing groove 10 is provided with a guide inclined plane 12, the guide inclined plane 12 inclines towards the outer end of each blade 6, the inner end edge of the guide inclined plane 12 is coplanar with the bottom of the pressure increasing groove 10, and under the condition that the pressure increasing groove 10 has a pressure increasing and speed increasing effect, when water flow in the pressure increasing groove 10 flows to the position of the spacing block 11, the water flow after pressure increasing and speed increasing can directly rush into the water flow flowing through the drainage channel 9 along the guide inclined plane 12 to directly push the water flow to flow outwards, and the water flow is not guided and accelerated on two sides of the water flow flowing through the drainage channel any more, so that the speed increasing effect is more obvious, the multi-section pressure increasing effect can be achieved by the plurality of spacing blocks 11, and the flow speed of the water flow flowing through the pressure increasing and speed increasing drainage channel 9 is further improved.
The guide inclined plane 12 is provided with a plurality of uniformly distributed water through holes 13, the water through holes 13 penetrate through the spacer blocks 11, the aperture of each water through hole 13 gradually decreases towards the direction of the outer end notch of the pressurizing groove 10, the water through holes 13 can play a role in assisting the pressurizing and accelerating through the continuously narrowed aperture, and the flow speed of water flowing to the outer end notch of the pressurizing groove 10 is further increased.
3 inner walls of water inlet are equipped with one and are spiral helicine acceleration rate groove 14, and the existence of acceleration rate groove 14 can play the guide rivers effect when water flow flows through water inlet 3, makes rivers be the space that the heliciform flows between apron 1 and the back shroud 2, effectively improves the velocity of water flow to just carrying out the acceleration rate to rivers beginning intaking, finally effectively improving the velocity of flow of vortex.
The outer diameter of the front cover plate 1 is larger than that of the rear cover plate 2, so that the overall shape of the impeller can more cater to the shape of the vortex, and the flow velocity of the vortex is further ensured.
Claims (6)
1. The utility model provides an eddy current formula curved surface impeller, includes the front shroud, locates the back shroud of front shroud top and locates the water inlet at front shroud middle part, its characterized in that: the upper surface of the front cover plate is provided with a front annular curved surface which is narrow at the bottom and wide at the top; the lower surface of the rear cover plate is provided with a rear annular curved surface which is narrow at the bottom and wide at the top; a plurality of blades which are uniformly distributed in the circumferential direction are arranged between the front annular curved surface and the rear annular curved surface; the side wall of one side of the blade is inwards concave to form an outer curved surface, and the side wall of the other side of the blade is outwards convex to form an inner curved surface; the outer curved surface of one of the blades is opposite to the inner curved surface adjacent to the outer curved surface; a drainage channel is arranged between the outer curved surface of one blade and the inner curved surface adjacent to the outer curved surface.
2. The vortex curved impeller of claim 1, wherein: the inner curved surface and the outer curved surface are both provided with a pressurizing groove, the inner end port of the pressurizing groove is positioned on the inner end surface of the blade, and the outer end port of the pressurizing groove is positioned on the outer end surface of the blade; the groove width of the pressurizing groove gradually decreases towards the direction far away from the axle center of the front cover plate.
3. The vortex curved impeller of claim 2, wherein: a plurality of uniformly distributed spacing blocks are arranged in the pressurizing groove; the side wall of one side of the spacer block, which is far away from the outer end of the pressurizing groove, is provided with a guide inclined plane, and the guide inclined plane inclines towards the outer end direction of the blade; the inner end edge of the guide inclined plane is coplanar with the bottom of the pressurizing groove.
4. The vortex curved impeller of claim 3, wherein: a plurality of water through holes which are uniformly distributed are formed in the guide inclined plane and penetrate through the partition blocks; the aperture of the water through hole gradually decreases towards the direction of the notch at the outer end of the pressurizing groove.
5. The vortex curved impeller of claim 1, wherein: the inner wall of the water inlet is provided with a spiral acceleration groove.
6. The vortex curved impeller of claim 1, wherein: the outer diameter of the front cover plate is larger than that of the rear cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220749416.3U CN217129901U (en) | 2022-04-01 | 2022-04-01 | Vortex type curved surface impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220749416.3U CN217129901U (en) | 2022-04-01 | 2022-04-01 | Vortex type curved surface impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129901U true CN217129901U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220749416.3U Active CN217129901U (en) | 2022-04-01 | 2022-04-01 | Vortex type curved surface impeller |
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| Country | Link |
|---|---|
| CN (1) | CN217129901U (en) |
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2022
- 2022-04-01 CN CN202220749416.3U patent/CN217129901U/en active Active
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