CN203348090U - Double-suction conical spinning constant pressure pump - Google Patents
Double-suction conical spinning constant pressure pump Download PDFInfo
- Publication number
- CN203348090U CN203348090U CN 201320370987 CN201320370987U CN203348090U CN 203348090 U CN203348090 U CN 203348090U CN 201320370987 CN201320370987 CN 201320370987 CN 201320370987 U CN201320370987 U CN 201320370987U CN 203348090 U CN203348090 U CN 203348090U
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump case
- constant pressure
- pump
- coning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a double-suction conical spinning constant pressure pump which comprises a pump case and an impeller. The pump case is composed of an upper pump case body and a lower pump case body, wherein the two ends of the pump case are open and provided with two suction tube openings respectively, a water outlet tube opening with brachistochrone is arranged in the middle of the pump case, and the inner wall of the pump case is of a conical shape. The impeller comprises a left impeller body and a right impeller body, wherein the left impeller body and the right impeller body are positioned and assembled into a whole through a connecting device, the impeller is a conical body, the left impeller body and the right impeller body are respectively provided with at least three blades which are symmetrically distributed, and a motor is connected with the connecting device to supply power to the impeller. By means of the two suction tube openings and the impeller, liquid in a pump chamber conducts slant flowing and rotational motion on the inner wall of the pump case, conical spinning liquid flow is formed, sucked liquid flows into the space between all the blades uniformly, the liquid which is returned after the liquid strikes the pump case enters the space between the blades again, the pressure of the space which the liquid enters repeatedly between the blades is increased, and therefore the effluent pressure and lift of the double-suction conical spinning constant pressure pump are increased.
Description
Technical field
The utility model relates to centrifugal pump, relates in particular to a kind of double suction coning constant pressure pump.
Background technique
Centrifugal pump is a kind of application area hydraulic machinery very widely, is applied in widely the multiple occasions such as agricultural, industry, fire-fighting.China's centrifugal pump industry development speed in recent years, benefit from that centrifugal pump industry production technology improves constantly and the downstream market constantly enlarges, and the centrifugal pump industry at home and abroad development situation on market is very good.
The one-stage double-sucking centrifugal pump structure mainly comprises that pump case, double-sided impeller and suction chamber form at present, and working principle is that impeller is arranged in pump case, and is fixed on transmission shaft, and transmission shaft is moving by the motor straight tape splicing.Pump case central authorities have fluid intake to be connected with suction pipe, and liquid enters in pump through low valve and suction pipe, and the liquid outlet on pump case is connected with discharge tube; Major character is presented as that the flow of conveying liquid is large, but discharge pressure and lift are less.
Therefore, we must propose a kind of compact double suction coning constant pressure pump simple in structure, inner, to solve discharge pressure in prior art, hang down and the little problem of lift.
The model utility content
In order to overcome the defect of prior art, the utility model aims to provide a kind of simple in structure, inner compact, and discharge pressure and lift larger double suction coning constant pressure pump all.
To achieve these goals, the utility model provides a kind of double suction coning constant pressure pump, comprise pump case and impeller, described pump case is comprised of upper pump case and lower pump case, the rounded opening shape in described pump case two ends, and be respectively arranged with two inlet tube mouths, and being provided with effluent pipe mouth in the middle of described pump case, described pump housing endophragm is conical; Described impeller comprises lobus sinister wheel and lobus dexter wheel, by a connection set, one is located and be assembled into to described lobus sinister wheel and described lobus dexter wheel, the tapered body of described impeller, and be provided with at least 3 blades on described lobus sinister wheel and described lobus dexter wheel; Described pump case and described impeller form monolithic construction, by described connection set, for described impeller, provide power.
Preferably, described lower pump case is provided with effluent pipe mouth, the design of the outlet conduit curve negotiating brachistochrone of this effluent pipe mouth, and the curvilinear equation of this outlet conduit curve under plane right-angle coordinate be x=a (t-sint), y=a (1-cost); Wherein, described x is the x axle under plane right-angle coordinate, and described y is the y axle under plane right-angle coordinate, and described a is constant, and described t is variable in curvilinear equation.
Preferably, the blade on described lobus sinister wheel and described lobus dexter wheel is symmetrical, and blade all equal angles settings on the impeller of left and right.
Preferably, described blade is Bernoulli's lemniscate at the end on projection line of the shaft axis perpendicular to described impeller, and the curvilinear equation of this projection line under plane right-angle coordinate is (x
2+ y
2)
2=2a
2(x
2-y
2), described x is the x axle under plane right-angle coordinate, and described y is the y axle under plane right-angle coordinate, and described a is constant.
Preferably, the curve of the rear side of the front side of described blade and described blade is 5 °-45 ° about the angle of the shaft axis rotation of described impeller.
Preferably, described connection set comprises axle, straight pin and the first screw; Between described lobus sinister wheel and described lobus dexter wheel, by described straight pin location transferring power, described lobus sinister wheel and described lobus dexter wheel are fixed on described lobus sinister wheel and described lobus dexter wheel on described axle by assembling and described first screw of described axle and parts on shaft.
Preferably, described pump case two ends all can suck liquid simultaneously, and described pump housing endophragm and described blade outer surface are to the consistent size between the conical surface of pump housing endophragm.
Preferably, the surface roughness value Ra of described pump housing endophragm and described impeller is the 0.2-6.3 micron.
Preferably, the material of described impeller is that alloy is moulded aluminium.
Compared with prior art, the beneficial effects of the utility model are as follows:
1, the utility model forms pump case by upper pump case and lower pump case, lobus sinister is taken turns and the lobus dexter wheel is located by axle, straight pin and the first screw and form one, rotation by motor output shaft under the drive of motor is with the rotation of moving axis, provide power to impeller, this double suction coning constant pressure pump is simple in structure, convenient processing and manufacture, cost is lower.
2, double suction coning constant pressure pump of the present utility model is by two inlet tube mouths and the conical impeller at the two ends of upper and lower pump case, make liquid in pump chamber be created in the obliquely flow of pump housing endophragm, possess and rotatablely move again simultaneously, thereby can produce the coning flow of fluid, the flowing fluid ratio sucked is flowed between each blade more equably, the liquid returned after the liquid knockout pump case enters in blade again, the space that liquid is repeatedly entered in blade is boosted, thereby make the discharge pressure of pump high, water-outlet quantity is large, and lift is large.
3, double suction coning constant pressure pump of the present utility model adopts the design of the outlet passage of the conical surface, lemniscate blade and brachistochrone, make discharge pressure and speed obtain further raising, and, by this design, make this constant pressure pump operation more stable, can be applicable to multiple occasion.
The accompanying drawing explanation
The overall structure schematic diagram that Fig. 1 is the utility model double suction coning constant pressure pump;
The pump case assembly structure schematic diagram that Fig. 2 is the utility model double suction coning constant pressure pump;
The impeller mounted inside structural representation that Fig. 3 is the utility model double suction coning constant pressure pump;
The vane end faces perspective view that Fig. 4 is the utility model double suction coning constant pressure pump;
The lobus sinister wheel internal structure schematic diagram that Fig. 5 is the utility model double suction coning constant pressure pump;
The lobus dexter wheel internal structure schematic diagram that Fig. 6 is the utility model double suction coning constant pressure pump.
The symbol list:
The 10-impeller, 11-lobus sinister wheel, 12-lobus dexter wheel, 13-straight pin, the 14-axle, 15-the first screw, 16-blade, the upper pump case of 20-, pump case under 30-, 31-effluent pipe mouth, 40-base, the 50-end cap connecting frame, 51-the second screw, 60-motor, the 70-coupling, 80-bearing, 90-seal ring, the 100-nut, the left inlet tube mouth of A-, the right inlet tube mouth of B-.
embodiment:
Referring to the accompanying drawing that the utility model embodiment is shown, hereinafter will describe in more detail the utility model.Yet the utility model can be with realizations such as multi-form, specifications, and should not be construed as the embodiment's who is subject in this proposition restriction.On the contrary, it is abundant and complete open in order to reach proposing these embodiments, and makes more relevant those skilled in the art person understand scope of the present utility model fully.In these accompanying drawings, for clearly visible, may zoom in or out relative size.
Refer now to Fig. 1 and describe the double suction coning constant pressure pump of implementing according to the utility model in detail, this double suction coning constant pressure pump comprises pump case and impeller, this pump case is comprised of upper pump case and lower pump case, upper pump case and lower pump case connect to form one, the rounded opening shape in two ends also arranges respectively left inlet tube mouth and right inlet tube mouth, be provided with effluent pipe mouth in the middle of pump case, pump housing endophragm is conical, and the inwall of this pump case is that Bilateral Symmetry oblique line and circular arc R 1 are tangent around the pump case shaft axis formed conical pump housing endophragm that rotates a circle; Impeller comprises lobus sinister wheel and lobus dexter wheel, by a connection set, one is located and be assembled into to lobus sinister wheel and lobus dexter wheel, the tapered body of impeller, and be provided with at least 3 blades on lobus sinister wheel and lobus dexter wheel; Provide power by connection set for impeller.
Concrete, in the pump chamber of upper pump case and lower pump case composition, in the shell of the surrounding of pump case, the oblique line of symmetrical both sides taper is under plane right-angle coordinate, the tangent shaft axis around pump case of the oblique line of this upside and the circular arc R shown in Fig. 11 rotates a circle, thereby thereby forming pump housing endophragm makes this pump housing endophragm for conical.
Wherein, effluent pipe mouth is arranged on lower pump case, and the outlet conduit curve of effluent pipe mouth is brachistochrone, and the curvilinear equation under plane right-angle coordinate is x=a (t-sint), y=a (1-cost); Wherein, x is the x axle under plane right-angle coordinate, and y is the y axle under plane right-angle coordinate, and a is constant, and t is the variable in curvilinear equation; The blade of lobus sinister wheel and the upper equal angles setting of described lobus dexter wheel is symmetrical, and this blade is Bernoulli's lemniscate at the end on projection line of the shaft axis perpendicular to described impeller, and the curvilinear equation of this projection line under plane right-angle coordinate is (x
2+ y
2)
2=2a
2(x
2-y
2); Wherein, x is the x axle under plane right-angle coordinate, and y is the y axle under plane right-angle coordinate, and a is constant.The curve of this blade front side and blade rear side is 5 °-45 ° about the angle of the shaft axis rotation of impeller.
And this connection set comprises axle, straight pin and the first screw, between lobus sinister wheel and lobus dexter wheel, by straight pin, to locate and transferring power, lobus sinister wheel and lobus dexter wheel are fixed on lobus sinister wheel and lobus dexter wheel on axle by assembling and first screw of axle and parts on shaft.The pump case two ends all can suck liquid simultaneously, and pump housing endophragm and blade outer surface be to the consistent size between the conical surface of pump housing endophragm, and the surface roughness value Ra of pump housing endophragm and described impeller is the 0.2-6.3 micron.
Practical example
The double suction coning constant pressure pump that the utility model provides as shown in Figure 1, this double suction coning constant pressure pump comprises pump case, impeller 10, end cap connecting frame 50 and the motor 60 be comprised of upper pump case 20 and lower pump case 30, should with lower pump case 30, with end cap connecting frame 50, be connected respectively by upper pump case 20, fastening by the second screw 51, and adopt finger setting, wherein, this motor 60 is fixedly mounted on the rear end of end cap connecting frame 50, impeller 10 comprises two impellers, being about to two impellers connects and is combined into an integral body by a connection set, and tapered body, be provided with at least 3 blades 16 on this impeller 10, the output shaft of this motor 50 is connected with the connection set of impeller 10 by coupling 70, thereby the output shaft by motor 50 passes to impeller 10 power, the rounded opening shape in pump case two ends, and its inwall is conical, thereby make the opening of this pump case on left side and right side be respectively arranged with left inlet tube mouth A and the right inlet tube mouth B with horizontal liquid, there is one in the middle of pump case and possess the effluent pipe mouth 31 that specific curves forms, the pump case two ends all can suck liquid simultaneously, and pump housing endophragm and blade outer surface are to the consistent size between the conical surface of pump housing endophragm.This pump case, impeller 10, motor 60 and end cap connecting frame 50 form monolithic constructions, and by double suction coning constant pressure pump is placed and is arranged on a base 40, and the rotation by motor 60 provides power for impeller 10.
As shown in Figure 2, effluent pipe mouth 31 is arranged on lower pump case 30, and designs by brachistochrone, thereby make the curve of outlet conduit, is brachistochrone, and the curvilinear equation of this outlet conduit curve under plane right-angle coordinate is x=a (t-sint), y=a (1-cost); And the surface roughness value Ra of pump case and impeller is the 0.2-6.3 micron, by impeller, adopts alloy to mould aluminium as raw material, and by high-precision numerical control machine, impeller is carried out to product processing, to obtain good surface roughness and the dynamic balance of impeller.
As shown in Figure 3 and Figure 4, this impeller 10 comprises lobus sinister wheel 11 and lobus dexter wheel 12, be provided with at least 3 blades 16 on lobus sinister wheel 11 and lobus dexter wheel 12, and blade 16 is all symmetrical, this blade 16 designs by Bernoulli's lemniscate at the end on projection line of the shaft axis perpendicular to impeller 10, thereby making this end on projection line is Bernoulli's lemniscate, and the curvilinear equation of this projection line under plane right-angle coordinate is (x
2+ y
2)
2=2a
2(x
2-y
2), characteristic based on Bernoulli's lemniscate itself, at liquid from be sucked into the process that flows out blade 16, the progressive formation of the radius of curvature of spoon of blade from slowly diminishing greatly, thereby can make in pump chamber more easily to produce spiral flow, thereby reduce the resistance of current, and improve the pressure of effluent pipe mouth 31; And the curve of blade 16 front sides and blade 16 rear sides is 5 °-45 ° about the angle of the shaft axis rotation of impeller 10.Connect to form one by the connection set that comprises axle 14, screw 15, straight pin 13 between this lobus sinister wheel 11 and lobus dexter wheel 12, concrete, locate and transferring power by straight pin 13 between this lobus sinister wheel 11 and lobus dexter wheel 12, and by axle 14 and assembling and first screw 15 of parts on shaft, lobus sinister wheel 11 and lobus dexter wheel 12 are fixed on axle 14.
And the output shaft of motor 60 is connected by coupling 70 with axle 14, and by bearing 80, nut 100 fixed connection shafts 14, and also be provided with seal ring between this bearing 80 and axle 14.Rotation by output shaft is with the rotation of moving axis 14, thereby gives impeller 10 transferring power, and axle 14 positions according to bearing 80 and the assembly relation of end cap connecting frame 50, and undertaken fastening by adjusting nut 100; Above pump case 20 and lower pump case 30 link into an integrated entity by the mode of finger setting and screw fastening, thereby form the chamber of pump, i.e. pump chamber.
The left and right impeller that the double suction coning constant pressure pump that the utility model provides designs by Bernoulli's lemniscate rotates mutually, and all there is horizontal liquid inlet tube mouth by two ends, and the pump case of the outlet conduit designed by brachistochrone, one side can make the liquid in pump chamber be created in the obliquely flow of pump housing endophragm, possess and rotatablely move again simultaneously, thereby produce the coning flow of fluid, the flowing fluid ratio sucked is flowed between each blade more equably, the liquid returned after the liquid knockout pump case enters in blade again, and the space that liquid stream repeatedly enters in blade is boosted; Another side the utility model adopts the design of the outlet conduit of the conical surface, lemniscate blade and brachistochrone, makes discharge pressure and go out water speed to be further improved.Thereby making this double-sucking type coning constant pressure pump solve existing double suction type centrifugal pump pressure hangs down and the little problem of lift, and this pump structure is simple, convenient processing and manufacture, the water flow of pump is large, pressure is high, it is large, stable to form, and can be applicable to multiple occasion, has good practicability.
In addition, the alloy that in the utility model, the selection of proposition pump case and impeller does not propose with this embodiment is moulded aluminium and is limited, and can also obtain good surface roughness and dynamic balance under the processing of high-precision numerical control machine by other material; Usually at least select the blade more than 3 and 3 on impeller in the present embodiment, thereby can meet the stability of blade, and keep the smooth running of pump; The a of blade in the curvilinear equation under plane right-angle coordinate of this time pump case effluent pipe mouth and impeller is constant, can be determined according to actual conditions, the value of x, y reaches as a coordinate figure under plane right-angle coordinate, and variable t is the variable quantity between 0-1 in curve parametric equation; And axle, straight pin and screw that the connection set of left and right impeller does not propose with the present embodiment be not limited, can also the left and right impeller be formed to an impeller integral body by other connection set, and provide power for impeller.
Obviously, those skilled in the art can carry out various changes and distortion and not break away from spirit and scope of the present utility model the utility model.Like this, if these modifications of the present utility model and distortion belong in the scope of the utility model claim and equivalent technologies thereof, the utility model also is intended to comprise these changes interior.
Claims (9)
1. a double suction coning constant pressure pump, comprise pump case and impeller, it is characterized in that,
Described pump case is comprised of upper pump case and lower pump case, the rounded opening shape in described pump case two ends, and be respectively arranged with two inlet tube mouths, and being provided with effluent pipe mouth in the middle of described pump case, described pump housing endophragm is conical;
Described impeller comprises lobus sinister wheel and lobus dexter wheel, by a connection set, one is located and be assembled into to described lobus sinister wheel and described lobus dexter wheel, the tapered body of described impeller, and be provided with at least 3 blades on described lobus sinister wheel and described lobus dexter wheel;
Described pump case and described impeller form monolithic construction, by described connection set, for described impeller, provide power.
2. double suction coning constant pressure pump according to claim 1, it is characterized in that, described lower pump case is provided with effluent pipe mouth, the outlet conduit curve of described effluent pipe mouth is brachistochrone, and the curvilinear equation of this outlet conduit curve under plane right-angle coordinate is x=a (t-sint), y=a (1-cost); Wherein, described x is the x axle under plane right-angle coordinate, and described y is the y axle under plane right-angle coordinate, and described a is constant, and described t is the variable in curvilinear equation.
3. double suction coning constant pressure pump according to claim 1, is characterized in that, the blade on described lobus sinister wheel and described lobus dexter wheel is symmetrical.
4. double suction coning constant pressure pump according to claim 3, is characterized in that, described blade is Bernoulli's lemniscate at the end on projection line of the shaft axis perpendicular to described impeller, and the curvilinear equation of this projection line under plane right-angle coordinate is (x
2+ y
2)
2=2a
2(x
2-y
2); Wherein, described x is the x axle under plane right-angle coordinate, and described y is the y axle under plane right-angle coordinate, and described a is constant.
5. double suction coning constant pressure pump according to claim 4, is characterized in that, the curve of the front side of described blade and the rear side of described blade is 5 °-45 ° about the angle of the shaft axis rotation of described impeller.
6. double suction coning constant pressure pump according to claim 1, is characterized in that, described connection set comprises axle, straight pin and the first screw; Between described lobus sinister wheel and described lobus dexter wheel, by described straight pin location transferring power, described lobus sinister wheel and described lobus dexter wheel are fixed on described lobus sinister wheel and described lobus dexter wheel on described axle by assembling and described first screw of described axle and parts on shaft.
7. double suction coning constant pressure pump according to claim 1, is characterized in that, described pump case two ends all can suck liquid simultaneously, and described pump housing endophragm and described blade outer surface are to the consistent size between the conical surface of pump housing endophragm.
8. double suction coning constant pressure pump according to claim 7, is characterized in that, the surface roughness value Ra of described pump housing endophragm and described impeller is the 0.2-6.3 micron.
9. double suction coning constant pressure pump according to claim 8, is characterized in that, the material of described impeller is that alloy is moulded aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320370987 CN203348090U (en) | 2013-06-26 | 2013-06-26 | Double-suction conical spinning constant pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320370987 CN203348090U (en) | 2013-06-26 | 2013-06-26 | Double-suction conical spinning constant pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203348090U true CN203348090U (en) | 2013-12-18 |
Family
ID=49747998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320370987 Expired - Fee Related CN203348090U (en) | 2013-06-26 | 2013-06-26 | Double-suction conical spinning constant pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203348090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334932A (en) * | 2013-06-26 | 2013-10-02 | 苏州经贸职业技术学院 | Double-suction coning constant pressure pump |
-
2013
- 2013-06-26 CN CN 201320370987 patent/CN203348090U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334932A (en) * | 2013-06-26 | 2013-10-02 | 苏州经贸职业技术学院 | Double-suction coning constant pressure pump |
| CN103334932B (en) * | 2013-06-26 | 2016-03-23 | 苏州经贸职业技术学院 | A kind of double suction coning constant pressure pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101089403A (en) | BJL multi-channel modified line special air conditioner energy-saving centrifugal pump | |
| CN107983100B (en) | A kind of industrial waste gas purifying processing unit | |
| CN203348090U (en) | Double-suction conical spinning constant pressure pump | |
| CN103334932B (en) | A kind of double suction coning constant pressure pump | |
| CN104806573B (en) | A kind of centrifugal water pump power-economizing method and centrifugal water pump export diversion energy-saving device | |
| CN110080991A (en) | A kind of vertical single stage Piping Centrifugal Pumps | |
| CN206448980U (en) | Deep well pump and its impeller component | |
| CN206035843U (en) | Energy -efficient vertical pipeline centrifugal pump that singly inhales | |
| CN101672368A (en) | Stop valve of pipeline | |
| CN204783814U (en) | High -efficient tubing pump of low specific speed | |
| CN208831309U (en) | A kind of long-life corrosion-resistant high-pressure mini self-priming water pump attachment device from dredging | |
| CN111535974A (en) | Low-water-head large-flow mixed-flow water turbine with double-inlet volute | |
| CN204025067U (en) | A kind of novel double suction torque flow pump | |
| CN203627154U (en) | Noise reduction valve plate and air pump | |
| CN201794830U (en) | Water-absorbing chamber of multistage centrifugal pump | |
| WO2013071847A1 (en) | Split volute and water pump with the same | |
| CN206035847U (en) | Energy -efficiently singly inhale horizontal pipeline centrifugal pump | |
| CN104708896B (en) | Mill base liquid level control device of circular screen printer | |
| CN206816503U (en) | Vacuum self priming pump | |
| CN208057432U (en) | A kind of horizontal pipeline oil pump | |
| CN206221381U (en) | A kind of axial-flow pump water feed apparatus | |
| CN206753996U (en) | Centrifugal pump | |
| CN207080398U (en) | Plastic cutter formula sealing ring | |
| CN208619417U (en) | A kind of rotary deflector | |
| CN206360683U (en) | A kind of back-flow preventer of production tree |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160626 |