CN106382250A - Centrifugal impeller and pump with same - Google Patents
Centrifugal impeller and pump with same Download PDFInfo
- Publication number
- CN106382250A CN106382250A CN201611051759.8A CN201611051759A CN106382250A CN 106382250 A CN106382250 A CN 106382250A CN 201611051759 A CN201611051759 A CN 201611051759A CN 106382250 A CN106382250 A CN 106382250A
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- Prior art keywords
- cascaded surface
- blades
- receded disk
- primary blades
- disk impeller
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a centrifugal impeller and a pump with the same. The centrifugal impeller comprises a body, multiple main blades and multiple auxiliary blades. The multiple main blades are arranged in the circumferential direction of the body at intervals and evenly distributed on one side of the body. The multiple auxiliary blades are arranged in the circumferential direction of the body at intervals and evenly distributed on one side of the body, the multiple auxiliary blades and the multiple main blades are distributed alternately, and outer contours of the sides, back on to the body, of the main blades and the auxiliary blades are in step shapes. According to the centrifugal impeller, the impeller structure is subjected to optimization design, water inflow resistance can be reduced, the outlet area can be increased, and hydraulic efficiency of the impeller is improved; and fluid is effectively diverted, vibration generated when the centrifugal impeller works is reduced, and therefore the overall performance of the pump can be improved.
Description
Technical field
The present invention relates to fluid machinery technical field, more particularly, to a kind of receded disk impeller and the pump with it.
Background technology
With the exploitation of heating, pumping fluid integrated device, the also more and more higher of the requirement to pump, the need of heating should be met
Ask and have higher performance again.And impeller, as the core component of pump, is also faced with high performance pressure, but in correlation technique
The low problem of single shrouded wheel generally existing efficiency.
Content of the invention
It is contemplated that at least solving one of above-mentioned technical problem to a certain extent.
For this reason, the present invention proposes a kind of receded disk impeller, the structure of this receded disk impeller is simple, and it is little to enter water resistance, waterpower
Efficiency high, can convection cell be shunted, operational vibration is little effectively, be conducive to improving the overall performance of pump.
The present invention also proposes a kind of pump with above-mentioned receded disk impeller.
The receded disk impeller of embodiment according to a first aspect of the present invention, including：Body；Multiple primary blades, multiple described masters
Blade is provided at circumferentially spaced along described body, and is evenly distributed on the side of described body；Multiple back blades, multiple described pairs
Blade is provided at circumferentially spaced along described body, and is evenly distributed on the side of described body, multiple described back blades with multiple
Described primary blades are interspersed, and the outline of the described primary blades and described back blades dorsad side of described body is formed as ladder
Shape.
Receded disk impeller according to embodiments of the present invention, by arranging multiple primary blades and the pair of interlaced arrangement on body
Blade, and the structure in multiple cascaded surfaces for the side being arranged to dorsad body by primary blades and back blades, enter to blade wheel structure
Row optimization design, it is possible to reduce enter water resistance, increases discharge area, improves impeller hydraulic efficiency, and convection cell is carried out point effectively
Stream, reduces receded disk impeller vibration operationally, thus being conducive to improving the overall performance of pump.
In addition, receded disk impeller according to embodiments of the present invention, can also have the technical characteristic adding as follows：
According to one embodiment of present invention, described body is generally formed into annular, in described body radially, described
Vertical dimension between the inner ring of primary blades and described back blades and described body is less than described primary blades and described back blades
Vertical dimension between outer ring and described body.
According to one embodiment of present invention, each described primary blades is respectively equipped with m ladder, m be positive integer and 3≤
m≤6.
According to one embodiment of present invention, in described body radially, the outline of each described primary blades is from interior
Outwards include (m+1) individual cascaded surface successively, the angle between two neighboring described cascaded surface is more than 90 ° and is less than 180 °.
According to one embodiment of present invention, described primary blades are provided with four ladders, in described body radially, institute
State primary blades outline from inside to outside include successively the first cascaded surface, the second cascaded surface, the 3rd cascaded surface, fourth order tread and
5th cascaded surface, described first cascaded surface is approximately perpendicular to described body, described second cascaded surface, the 3rd cascaded surface, fourth order
Tread and the 5th cascaded surface are respectively relative to the planar tilt setting of described body place.
According to one embodiment of present invention, the angle limiting between described first cascaded surface and described second cascaded surface
For α, the angle limiting between described second cascaded surface and described 3rd cascaded surface is β, described 3rd cascaded surface and described the
The angle limiting between quadravalence tread is γ, and the angle limiting between described fourth order tread and described 5th cascaded surface is
160 ° of 120 ° of δ, 90 ° of ＜ α ＜, 95 ° of ＜ β ＜, 145 ° of 140 ° 105 ° ＜ δ ＜ of 100 ° of ＜ γ ＜.
According to one embodiment of present invention, each described back blades is respectively equipped with n ladder, n be positive integer and 2≤
n≤6.
According to one embodiment of present invention, in described body radially, the outline of each described back blades is from interior
Outwards include (n+1) individual cascaded surface successively, the angle between two neighboring described cascaded surface is more than 90 ° and is less than 180 °.
According to one embodiment of present invention, described back blades is provided with three ladders, in described body radially, institute
The outline stating back blades from inside to outside includes the 6th cascaded surface, the 7th cascaded surface, the 8th cascaded surface and the 9th cascaded surface successively,
Described 6th cascaded surface, the 7th cascaded surface, the 8th cascaded surface and the 9th cascaded surface are respectively relative to described body place plane and incline
Tiltedly arrange.
According to one embodiment of present invention, the angle limiting between described 6th cascaded surface and described 7th cascaded surface
For A, the angle limiting between described 7th cascaded surface and described 8th cascaded surface is B, described 8th cascaded surface and described the
The angle limiting between nine cascaded surfaces is C, 110 ° of 90 ° of ＜ A ＜, 145 ° of 95 ° of ＜ B ＜, 150 ° of 100 ° of ＜ C ＜.
According to one embodiment of present invention, it is provided with described accessory lobes between the adjacent described primary blades of any two
Piece, is provided with described primary blades between the adjacent described back blades of any two.
According to one embodiment of present invention, the opposite side of described body is provided with bonnet plate hole, and described bonnet plate hole is three
Individual.
According to one embodiment of present invention, the opposite side of described body is provided with multiple backs blade, multiple described backs
Blade is along the circumferentially spaced inner circumferential being evenly arranged in described body of described body.
The pump of embodiment according to a second aspect of the present invention, including the receded disk impeller described in above-described embodiment.
The additional aspect of the present invention and advantage will be set forth in part in the description, and partly will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The above-mentioned and/or additional aspect of the present invention and advantage will become from reference to the description to embodiment for the accompanying drawings below
Substantially and easy to understand, wherein：
Fig. 1 is the receded disk impeller according to embodiments of the present invention structural representation at a visual angle；
Fig. 2 is the receded disk impeller according to embodiments of the present invention structural representation at another visual angle；
Fig. 3 is the front view of receded disk impeller according to embodiments of the present invention；
Fig. 4 is the side view of receded disk impeller according to embodiments of the present invention.
Reference：
100：Receded disk impeller；
10：Body；11：Bonnet plate hole；12：Wheel hub；
20：Primary blades；
30：Back blades；
401：First cascaded surface；402：Second cascaded surface；403：3rd cascaded surface；
404：Fourth order tread；405：5th cascaded surface；406：6th cascaded surface；
407：7th cascaded surface；408：8th cascaded surface；409：9th cascaded surface；
50：Back blade.
Specific embodiment
Embodiments of the invention are described below in detail, the example of described embodiment is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
The embodiment of figure description is exemplary it is intended to be used for explaining the present invention, and is not considered as limiting the invention.
1 to Fig. 4 specifically describes the receded disk impeller 100 of embodiment according to a first aspect of the present invention below in conjunction with the accompanying drawings.
Receded disk impeller 100 according to embodiments of the present invention includes body 10, multiple primary blades 20 and multiple back blades 30.
Specifically, multiple primary blades 20 being provided at circumferentially spaced along body 10, and it is evenly distributed on the side of body 10, multiple accessory lobes
Piece 30 is provided at circumferentially spaced along body 10, and is evenly distributed on the side (upside as shown in Figure 1) of body 10, multiple accessory lobes
Piece 30 is interspersed with multiple primary blades 20, and (as shown in Figure 1 is upper for the side of primary blades 20 and back blades 30 dorsad body 10
End) outline be formed as stepped.
In other words, this receded disk impeller 100 is mainly made up of body 10, multiple primary blades 20 and multiple back blades 30, its
In, body 10 can form the plate being arranged in horizontal plane (plane vertical with above-below direction as shown in Figure 1), Duo Gezhu
Blade 20 and multiple back blades 30 are each provided at the front (upper surface as shown in Figure 1) of body 10, specifically, multiple primary blades 20
Along the evenly-spaced arrangement of circumference of body 10, and each primary blades 20 forms the arc extending from the outside of body 10 to inner side
Shape, multiple back blades 30 are along the evenly-spaced arrangement of circumference of body 10, and each back blades 30 forms the outside along body 10
The arc extending to inner side, for example multiple primary blades 20 and multiple back blades 30 can be with respect to the rotations of receded disk impeller 100
Be centrally formed vortex shape, and multiple primary blades 20 and multiple back blades 30 along body 10 circumferentially staggered be arranged to define out many
The runner of the individual circumferentially spaced arrangement along body 10.
Further, the shape of each primary blades 20 is identical, equal sized, and multiple primary blades 20 are with respect to body 10
Center is centrosymmetric arrangement；The shape of each back blades 30 is identical, equal sized, and multiple back blades 30 is with respect to body 10
Center be centrosymmetric arrangement, wherein, a side surface of the dorsad body 10 of each primary blades 20 and back blades 30 is (as Fig. 1
Shown upper surface) form outer contour formation stairstepping.
Thus, receded disk impeller 100 according to embodiments of the present invention, multiple by setting interlaced arrangement on body 10
Primary blades 20 and back blades 30, and the side being arranged to dorsad body 10 of primary blades 20 and back blades 30 is in multiple cascaded surfaces
Structure, design is optimized to blade wheel structure, it is possible to reduce enter water resistance, increases discharge area, improve impeller hydraulic efficiency,
Convection cell is shunted effectively, reduces receded disk impeller 100 vibration operationally, thus being conducive to improving the globality of pump
Energy.
Alternatively, body 10 is generally formed into annular, in body 10 radially, the inner ring of primary blades 20 and back blades 30
Vertical dimension and body 10 between is less than the vertical dimension between the outer ring of primary blades 20 and back blades 30 and body 10.
Specifically, as depicted in figs. 1 and 2, in the present embodiment, body 10 forms arrangement annular plate in the horizontal plane
Part, multiple primary blades 20 and multiple back blades 30 are each provided at the front of annular body 10, each primary blades 20 and each accessory lobes
The outer contour of one side surface (upper surface as shown in Figure 1) of the dorsad body 10 of piece 30 is respectively formed cascaded surface, and primary blades
Vertical dimension between 20 upper surface positioned at outside and body 10 is more than the upper surface positioned at inner side and the basis of primary blades 20
Vertical dimension between body 10, the vertical dimension between the upper surface positioned at outside of back blades 30 and body 10 is more than back blades
Vertical dimension between 30 upper surface positioned at inner side and body 10.
That is, primary blades 20 positioned at outermost structure height be higher than be located at inner side structure height, accessory lobes
Piece 30 positioned at outermost structure height be higher than the structure height being located at inner side, wherein, primary blades 20 and back blades 30
Be located at the relatively low structure of inside height to be more beneficial for reducing into water resistance, and primary blades 20 and back blades 30 positioned at outermost
The higher structure of height can realize empty avoiding, is further ensured that certain water yield, also reduces backflow phenomenon.
Advantageously, each primary blades 20 is respectively equipped with m ladder, m is positive integer and 3≤m≤6.For example, each main lobe
3,5 or 6 ladders are respectively equipped with piece 20, accordingly, each primary blades 20 has 4,6 or 7 cascaded surfaces,
Vertical dimension between each cascaded surface and body 10 is unequal.Ladder by the side of the dorsad body 10 of each primary blades 20
Structure control within the above range it is ensured that on the basis of difficulty of processing is less, lifting receded disk impeller 100 work effect
Rate, thus the overall performance of elevator pump is it is ensured that the cost performance of receded disk impeller 100.
In certain specific embodiments of the invention, primary blades 20 are provided with four ladders, in body 10 radially,
The outline of primary blades 20 from inside to outside include successively the first cascaded surface 401, the second cascaded surface 402, the 3rd cascaded surface 403,
Quadravalence tread 404 and the 5th cascaded surface 405, the first cascaded surface 401 is approximately perpendicular to body 10, the second cascaded surface 402, the 3rd rank
Tread 403, fourth order tread 404 and the 5th cascaded surface 405 are respectively relative to body 10 place planar tilt setting.
Specifically, as shown in figures 1 and 3, primary blades 20 are located at the front (upper surface as shown in Figure 1) of body 10, main
The inner side of the outer lateral body 10 from body 10 for the blade 20 extends, and a side surface of the dorsad body 10 of primary blades 20 is (as Fig. 1 institute
The upper surface showing) formed radial direction along body 10 by the first cascaded surface 401 being sequentially arranged outside interior, the second cascaded surface 402, the
Three cascaded surfaces 403, fourth order tread 404 and the 5th cascaded surface 405, that is, the first cascaded surface 401 be located at the inner side of body 10, and
First cascaded surface 401 substantially forms the plane of the imaginary plane being located perpendicular to body 10, and the 5th cascaded surface 405 is located at body 10
Outermost, and the second cascaded surface 402, the 3rd cascaded surface 403, fourth order tread 404 and the 5th cascaded surface 405 be respectively relative to
The imaginary plane that body 10 is located is obliquely installed.
Thus, side primary blades 20 being arranged to dorsad body 10 is in the structure of multiple cascaded surfaces, it is possible to reduce water inlet
Resistance, increases discharge area, improves impeller hydraulic efficiency, and convection cell is shunted effectively, reduces receded disk impeller 100 in work
Vibration when making, thus be conducive to improving the overall performance of pump.
Alternatively, the outline of each primary blades 20 from inside to outside includes (m+1) individual cascaded surface, two neighboring ladder successively
Angle between face is more than 90 ° and is less than 180 °.
Specifically, the angle limiting between the first cascaded surface 401 and the second cascaded surface 402 is α, the second cascaded surface 402
The angle limiting and the 3rd cascaded surface 403 between is β, the folder limiting between the 3rd cascaded surface 403 and fourth order tread 404
Angle is γ, and the angle limiting between fourth order tread 404 and the 5th cascaded surface 405 is δ, 180 ° of 90 ° of ＜ α ＜, 90 ° of ＜ β ＜
180 °, 180 ° of 180 ° of 90 ° of ＜ γ ＜, 90 ° of ＜ δ ＜.
If the plane that the first cascaded surface 401 is located with respect to body 10 is vertically arranged, the second cascaded surface 402 is with respect to body
Between the planar tilt setting at 10 places and the plane at the plane at the second cascaded surface 402 place and the first cascaded surface 401 place
Angle α is 100 °, 120 °, 160 ° or 170 ° etc.；Planar tilt setting that 3rd cascaded surface 403 is located with respect to body 10 and the
Angle β between the plane at the plane at three cascaded surface 403 place and the second cascaded surface 402 place is 110 °, 150 ° or 160 ° etc.；
Fourth order tread 404 is arranged with respect to the planar tilt that body 10 is located and fourth order tread 404 is located plane and the 3rd rank
Angle γ between the plane that tread 403 is located is 95 °, 120 °, 160 ° or 175 ° etc.；5th cascaded surface 405 is with respect to body
Between the planar tilt setting at 10 places and the plane at the plane at the second cascaded surface 402 place and fourth order tread 404 place
Angle is 110 °, 140 ° or 160 ° etc..By design is optimized to the structure of primary blades 20, the globality of pump can be improved
Can, and the structure of primary blades 20 is simple, processing, easy to manufacture, low production cost.
Preferably, 160 ° of 120 ° of 90 ° of ＜ α ＜, 95 ° of ＜ β ＜, 145 ° of 140 ° 105 ° ＜ δ ＜ of 100 ° of ＜ γ ＜.Namely
Say, the angle α limiting between the first cascaded surface 401 and the second cascaded surface 402 meets more than 90 ° and is less than 120 ° of condition,
The angle β limiting between second cascaded surface 402 and the 3rd cascaded surface 403 meets more than 95 ° and the condition with 160 °, the 3rd rank
The angle γ limiting between tread 403 and fourth order tread 404 meets more than 100 ° and is less than 140 ° of condition, fourth order ladder
The angle δ that limits between face 404 and the 5th cascaded surface 405 meets more than 105 ° and the condition less than 145 ° is it is ensured that the
One cascaded surface 401, the second cascaded surface 402, the 3rd cascaded surface 403, fourth order tread 404, the 5th cascaded surface 405 are along body 10
Radially by being highly gradually increased outside interior, reduce into water resistance, increase discharge area, raising thus being further ensured that and can reaching
The purpose of impeller hydraulic efficiency, thus effectively improve the overall performance of pump.
Advantageously, each back blades 30 is respectively equipped with n ladder, n is positive integer and 2≤n≤6.For example, each main lobe
2,5 or 6 ladders are respectively equipped with piece 20, accordingly, each primary blades 20 has 3,6 or 7 cascaded surfaces,
Vertical dimension between each cascaded surface and body 10 is unequal.Ladder by the side of the dorsad body 10 of each back blades 30
Structure control within the above range it is ensured that on the basis of difficulty of processing is less, lifting receded disk impeller 100 work effect
Rate, thus the overall performance of elevator pump is it is ensured that the cost performance of receded disk impeller 100.
In certain specific embodiments of the invention, back blades 30 is provided with three ladders, in body 10 radially,
The outline of back blades 30 from inside to outside includes the 6th cascaded surface 406, the 7th cascaded surface 407, the 8th cascaded surface 408 and successively
Nine cascaded surfaces 409, the 6th cascaded surface 406, the 7th cascaded surface 407, the 8th cascaded surface 408 are relative respectively with the 9th cascaded surface 409
In body 10 place planar tilt setting.
Specifically, as shown in figures 1 and 3, back blades 30 is located at the front (upper surface as shown in Figure 1) of body 10, secondary
The inner side of the outer lateral body 10 from body 10 for the blade 30 extends, and a side surface of the dorsad body 10 of back blades 30 is (as Fig. 1 institute
The upper surface showing) formed radial direction along body 10 by the 6th cascaded surface 406 being sequentially arranged outside interior, the 7th cascaded surface 407, the
Eight cascaded surfaces 408, the 9th cascaded surface 409, that is, positioned at the inner side of body 10, the 9th cascaded surface 409 is located at the 6th cascaded surface 406
The outermost of body 10, and the 6th cascaded surface 406, the 7th cascaded surface 407, the 8th cascaded surface 408 and the 9th cascaded surface 409 are respectively
The imaginary plane being located with respect to body 10 is obliquely installed.
Thus, by the structure in multiple cascaded surfaces for the side being arranged to dorsad body 10 of back blades 30, to blade wheel structure
It is optimized design, it is possible to reduce enter water resistance, increases discharge area, improve impeller hydraulic efficiency, convection cell is carried out effectively
Shunting, reduces receded disk impeller 100 vibration operationally, thus being conducive to improving the overall performance of pump.
Alternatively, the outline of each back blades 30 from inside to outside includes (n+1) individual cascaded surface, two neighboring ladder successively
Angle between face is more than 90 ° and is less than 180 °.
Specifically, the angle limiting between the 6th cascaded surface 406 and the 7th cascaded surface 407 is A, the 7th cascaded surface 407
The angle limiting and the 8th cascaded surface 408 between is B, the folder limiting between the 8th cascaded surface 408 and the 9th cascaded surface 409
Angle is C, 180 ° of 90 ° of ＜ A ＜, 180 ° of 90 ° of ＜ B ＜, 180 ° of 90 ° of ＜ C ＜.
For example, the planar tilt that the 6th cascaded surface 406 is located with respect to body 10 is arranged, the 7th cascaded surface 407 with respect to
Planar tilt setting that body 10 is located and the plane that plane and the 6th cascaded surface 406 that the 7th cascaded surface 407 is located are located it
Between included angle A be 100 °, 120 °, 160 ° or 170 ° etc.；8th cascaded surface 408 is arranged with respect to the planar tilt that body 10 is located
And the 8th cascaded surface 408 be located plane and the 7th cascaded surface 407 be located plane between included angle B be 110 °, 150 ° or
160 ° etc.；Planar tilt setting that 9th cascaded surface 409 is located with respect to body 10 and the plane that the 9th cascaded surface 409 is located with
Angle C between the plane that 8th cascaded surface 408 is located is 95 °, 120 °, 160 ° or 175 ° etc..
Preferably, 150 ° of 145 ° of 110 ° of 90 ° of ＜ A ＜, 95 ° of ＜ B ＜, 100 ° of ＜ C ＜.In other words, the 7th cascaded surface 407 with
The included angle A limiting between 6th cascaded surface 406 meets more than 90 ° and is less than 110 ° of condition, the 8th cascaded surface 408 and the 7th
The included angle B limiting between cascaded surface 407 meets more than 95 ° and the condition with 145 °, the 9th cascaded surface 409 and the 8th cascaded surface
The angle C that limits between 408 meets more than 100 ° and the condition less than 150 ° is it is ensured that the 6th cascaded surface 406, the 7th rank
Tread 407, the 8th cascaded surface 408, the 9th cascaded surface 409 along body 10 radial direction by being highly gradually increased outside interior, thus entering
One step ensures to reach the purpose reducing into water resistance, increasing discharge area, improve impeller hydraulic efficiency, thus effectively carrying
The overall performance of high pump.
Wherein, it is provided with a back blades 30, the adjacent back blades of any two between the adjacent primary blades of any two 20
It is provided with primary blades 20 between 30.With reference to Fig. 3, multiple primary blades 20 and multiple back blades 30 are respectively along between the circumference of body 10
Arranged apart, and the quantity of primary blades 20 is equal with the quantity of back blades 30, and two primary blades 20 of arbitrary neighborhood are along body
The distance of 10 radial direction is equal, and the distance of the radial direction along body 10 for two back blades 30 of arbitrary neighborhood is equal.By multiple primary blades
20 and multiple back blades 30 interlock and arranged spaced apart, can effectively convection cell be shunted, reduce receded disk impeller 100 work
The vibration causing because of the impact of fluid when making, is conducive to overall performance when improving pump work.
Alternatively, the outer end of primary blades 20 is concordant in the circumference of body 10 with the outer end of back blades 30, and primary blades 20
The inner body 10 radially, beyond back blades 30 the inner, that is, the length of primary blades 20 be more than back blades 30 length,
Design is optimized to the arrangement of primary blades 20 and back blades 30, is conducive to improving the overall performance of receded disk impeller 100.
Additionally, the opposite side of body 10 is provided with bonnet plate hole 11, bonnet plate hole 11 is three.With reference to Fig. 3, body 10 sets
There are three bonnet plate holes 11, and three bonnet plate holes 11 are located between the primary blades 20 being disposed adjacent and back blades 30 respectively, can
To reduce the effect of impeller back pressure, improve the service behaviour of receded disk impeller 100, thus the overall performance of elevator pump.
Advantageously, the opposite side of body 10 is provided with multiple backs blade 50, and multiple backs blade 50 is along the circumference of body 10
It is spaced apart the inner circumferential being evenly arranged in body 10.Specifically, as shown in Fig. 2 the middle part of body 10 is provided with wheel hub 12, multiple backs
Blade 50 is connected along its circumferentially spaced back side (lower surface as shown in Figure 2) being arranged in body 10 and with wheel hub 12, that is, many
Individual back blade 50 is located at the inner ring of body 10, and operationally, multiple backs blade 50 can be used to offset receded disk impeller 100
Some or all axial forces, the service behaviour of lifting receded disk impeller 100.
The pump of embodiment includes the receded disk impeller 100 of above-described embodiment according to a second aspect of the present invention.Centrifugation in pump
Operationally, fluid enters formula impeller 100 from the axial entrance of receded disk impeller 100, after fluid is acted on by impeller, along centrifugation
The radially flowing out of formula impeller 100, the structure of the receded disk impeller 100 of this structure is conducive to reducing into water resistance, improves impeller water
Force efficiency, is effectively reduced backflow it is ensured that the water yield of impeller, lifts overall performance.If for the pump needing convection cell heating, should
The impeller of structure can also increase fluid and the direct shearing force of heating element heater, improves the efficiency of heating surface.
Because receded disk impeller 100 according to embodiments of the present invention has above-mentioned technique effect, therefore, real according to the present invention
The pump applying example also has above-mentioned technique effect, and that is, the structure of this pump is simple, compact, enters that water resistance is little, hydraulic efficiency is high, water yield
Greatly, overall performance is high.
Other of receded disk impeller 100 according to embodiments of the present invention and pump constitute and operate common for this area
It is all known for technical staff, be not detailed herein.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " up time
The orientation of instruction such as pin ", " counterclockwise " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of
The description present invention and simplification describe, rather than the device of instruction or hint indication or element must have specific orientation, Yi Te
Fixed azimuth configuration and operation, are therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；It can be machine
Tool connects or electrically connects；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can be two units
Connection within part.For the ordinary skill in the art, above-mentioned term can be understood as the case may be at this
Concrete meaning in bright.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy describing with reference to this embodiment or example
Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
Although embodiments of the invention have been shown and described above it is to be understood that above-described embodiment is example
Property it is impossible to be interpreted as limitation of the present invention, those of ordinary skill in the art is in the principle without departing from the present invention and objective
In the case of above-described embodiment can be changed within the scope of the invention, change, replace and modification.
Claims (14)
1. a kind of receded disk impeller is it is characterised in that include：
Body；
Multiple primary blades, multiple described primary blades being provided at circumferentially spaced along described body, and it is evenly distributed on described body
Side；
Multiple back blades, multiple described back blades being provided at circumferentially spaced along described body, and it is evenly distributed on described body
Side, multiple described back blades are interspersed with multiple described primary blades, described primary blades and described back blades dorsad described
The outline of the side of body is formed as stepped.
2. receded disk impeller according to claim 1 is it is characterised in that described body is generally formed into annular, described
Radially, the vertical dimension between the inner ring of described primary blades and described back blades and described body is less than described main lobe to body
Vertical dimension between the outer ring of piece and described back blades and described body.
3. receded disk impeller according to claim 1 is it is characterised in that be respectively equipped with m rank in each described primary blades
Ladder, m is positive integer and 3≤m≤6.
4. receded disk impeller according to claim 3 it is characterised in that in described body radially, each described master
The outline of blade from inside to outside includes (m+1) individual cascaded surface successively, and the angle between two neighboring described cascaded surface is more than 90 °
And it is less than 180 °.
5. receded disk impeller according to claim 3 is it is characterised in that described primary blades are provided with four ladders, in institute
State body radially, the outline of described primary blades from inside to outside includes the first cascaded surface, the second cascaded surface, the 3rd rank successively
Tread, fourth order tread and the 5th cascaded surface, described first cascaded surface is approximately perpendicular to described body, described second cascaded surface,
3rd cascaded surface, fourth order tread and the 5th cascaded surface are respectively relative to the planar tilt setting of described body place.
6. receded disk impeller according to claim 5 is it is characterised in that described first cascaded surface and described second cascaded surface
Between the angle that limits be α, the angle limiting between described second cascaded surface and described 3rd cascaded surface is β, described
The angle limiting between three cascaded surfaces and described fourth order tread is γ, described fourth order tread and described 5th cascaded surface it
Between the angle that limits be δ,
160 ° of 120 ° of 90 ° of ＜ α ＜, 95 ° of ＜ β ＜, 145 ° of 140 ° 105 ° ＜ δ ＜ of 100 ° of ＜ γ ＜.
7. receded disk impeller according to claim 2 is it is characterised in that be respectively equipped with n rank on each described back blades
Ladder, n is positive integer and 2≤n≤6.
8. receded disk impeller according to claim 7 it is characterised in that in described body radially, each described pair
The outline of blade from inside to outside includes (n+1) individual cascaded surface successively, and the angle between two neighboring described cascaded surface is more than 90 °
And it is less than 180 °.
9. receded disk impeller according to claim 7 is it is characterised in that described back blades is provided with three ladders, in institute
State body radially, the outline of described back blades from inside to outside includes the 6th cascaded surface, the 7th cascaded surface, the 8th rank successively
Tread and the 9th cascaded surface, described 6th cascaded surface, the 7th cascaded surface, the 8th cascaded surface and the 9th cascaded surface are respectively relative to institute
State the planar tilt setting of body place.
10. receded disk impeller according to claim 9 is it is characterised in that described 6th cascaded surface and described 7th ladder
The angle limiting between face is A, and the angle limiting between described 7th cascaded surface and described 8th cascaded surface is B, described
The angle limiting between 8th cascaded surface and described 9th cascaded surface is C,
150 ° of 145 ° of 110 ° of 90 ° of ＜ A ＜, 95 ° of ＜ B ＜, 100 ° of ＜ C ＜.
11. receded disk impellers according to any one of claim 1-10 are it is characterised in that described in any two is adjacent
It is provided with a described back blades between primary blades, between the adjacent described back blades of any two, be provided with described primary blades.
12. receded disk impellers according to any one of claim 1-10 are it is characterised in that the opposite side of described body sets
There is bonnet plate hole, described bonnet plate hole is three.
13. receded disk impellers according to any one of claim 1-10 are it is characterised in that the opposite side of described body sets
There is multiple backs blade, multiple described backs blade is evenly arranged in described body along the circumferentially spaced of described body
Week.
A kind of 14. pumps are it is characterised in that include the receded disk impeller any one of claim 1-13.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051759.8A CN106382250B (en) | 2016-11-23 | 2016-11-23 | Receded disk impeller and pump with it |
| PCT/CN2017/106056 WO2018095157A1 (en) | 2016-11-23 | 2017-10-13 | Centrifugal impeller and pump having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611051759.8A CN106382250B (en) | 2016-11-23 | 2016-11-23 | Receded disk impeller and pump with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106382250A true CN106382250A (en) | 2017-02-08 |
| CN106382250B CN106382250B (en) | 2019-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611051759.8A Active CN106382250B (en) | 2016-11-23 | 2016-11-23 | Receded disk impeller and pump with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106382250B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095157A1 (en) * | 2016-11-23 | 2018-05-31 | 广东威灵电机制造有限公司 | Centrifugal impeller and pump having same |
| CN114278581A (en) * | 2021-12-27 | 2022-04-05 | 太仓市凯福士机械有限公司 | Centrifugal pump capable of reducing clearance leakage flow |
| CN114412813A (en) * | 2021-12-29 | 2022-04-29 | 德安县塑丽龙纺织有限公司 | Dust removal device for textile production process |
| WO2024131246A1 (en) * | 2022-12-21 | 2024-06-27 | 浙江三花商用制冷有限公司 | Impeller, and liquid discharge device having same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018095157A1 (en) * | 2016-11-23 | 2018-05-31 | 广东威灵电机制造有限公司 | Centrifugal impeller and pump having same |
| CN114278581A (en) * | 2021-12-27 | 2022-04-05 | 太仓市凯福士机械有限公司 | Centrifugal pump capable of reducing clearance leakage flow |
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| CN114412813B (en) * | 2021-12-29 | 2023-11-07 | 德安县塑丽龙纺织有限公司 | Dust removing device for textile production process |
| WO2024131246A1 (en) * | 2022-12-21 | 2024-06-27 | 浙江三花商用制冷有限公司 | Impeller, and liquid discharge device having same |
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| Publication number | Publication date |
|---|---|
| CN106382250B (en) | 2019-02-22 |
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Effective date of registration: 20200306 Address after: 528311 No. 27 Xingye Road, Beijiao Town Industrial Park, Shunde District, Guangdong, Foshan Co-patentee after: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) Co.,Ltd. Patentee after: GUANGDONG WELLING MOTOR MANUFACTURING Co.,Ltd. Co-patentee after: FOSHAN WEILING WASHER MOTOR MANUFACTURING Co.,Ltd. Address before: 528311 No. 27 Xingye Road, Beijiao Town Industrial Park, Shunde District, Guangdong, Foshan Co-patentee before: MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) Co.,Ltd. Patentee before: GUANGDONG WELLING MOTOR MANUFACTURING Co.,Ltd. |