CN207920880U - The double-impeller pump of symmetrical impeller arrangement - Google Patents
The double-impeller pump of symmetrical impeller arrangement Download PDFInfo
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- CN207920880U CN207920880U CN201820222122.9U CN201820222122U CN207920880U CN 207920880 U CN207920880 U CN 207920880U CN 201820222122 U CN201820222122 U CN 201820222122U CN 207920880 U CN207920880 U CN 207920880U
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- impeller
- pump
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- fluid room
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Abstract
The utility model discloses a kind of double-impeller pumps of symmetrical impeller arrangement.Including pump assembly (1), liquid inlet (2) is set on pump assembly (1), liquid outlet (3), electric machine assembly is set in pump assembly (1), electric machine assembly includes main shaft (8), main shaft (8) both ends are separately connected the first impeller (6), second impeller (7), first order hydraulic fluid room (21) are formed between first impeller (6) tapping side and pump assembly (1), second level hydraulic fluid room (30) are formed between second impeller (7) tapping side and pump assembly (1), second impeller (7) inlet is equipped with second level intake chamber (31), second level hydraulic fluid room (30) is connected to liquid outlet (3), it is connected to by drain runner (4) between first order hydraulic fluid room (21) and second level intake chamber (31)；Liquid enters from liquid inlet (2), first order hydraulic fluid room (21) is flowed out to after the first impeller (6) once supercharging, entered after the second impeller (7) secondary booster by second level intake chamber (31) by drain runner (4) again after flowing out and arrive second level hydraulic fluid room (30), flowed out from liquid outlet (3).It can be widely applied to pump field.
Description
Technical field
The utility model is related to a kind of pump more particularly to a kind of double-impeller pumps of symmetrical impeller arrangement.
Background technology
Usually promotion liquid, convey liquid or make liquid increase pressure, i.e., the mechanical energy of prime mover is become liquid energy
It measures to reach and pumps the machine of liquid purpose and be referred to as pumping.Centrifugal pump has the symmetrical impeller of single suction single impeller, double suction, multistage leaf
The variety classes such as wheel, but microminiature centrifugal pump is all the form using single impeller, i.e. and one end of motor output shaft connects a leaf
Wheel, for micropump, efficiency cannot make full use of, and the efficiency of general micropump is 10~50%, with the large-scale efficiency of pump 60~
90% falls far short.Single-impeller pump has strong axial force in the process of running, it is necessary to design thrust washer, while leaf in end face
It takes turns end radial load and is more than distal end bearing, bearing wear is big.Existing micropump unilateral side is leaked water, due to having air, sometimes
Flow is difficult to enter into the position of bearings at far water end, causes far water end bearing that cannot obtain sufficient water lubrication, is easy to cause axis
It holds and forms dry friction with axis, the heat that when dry friction generates cannot be taken away rapidly, and heat accumulation generates high temperature, easy damaged axis
It holds, reduces bearing life；In order to make the bearing sufficient lubrication of impeller distal end, some pumps be additionally arranged exhaust near the bearing of distal end
Valve, but exhaust valve exhaust is rarely employed for unprofessional user, if not in time using exhaust valve exhaust, the sky of pump body
The bearing that gas can prevent water from reaching distal end is lubricated, and insufficient lubrication is caused even to fail.
In addition, also a kind of existing double suction pump configuration drives for external motor, the pump housing is independent with motor, in the impeller of pump
Between there is axis perforation, axis to be supported by both ends, have certain drag losses to the flowing of water in this way, in addition to sealing need it is corresponding
Structure is supplemented, and increases the structural complexity of pump.In addition, also a kind of double -impeller pump of foreign vendor, is to use two
Motor is put together, and each motor drives an impeller, is substantially that two single-impeller pumps are placed in a shell,
The two is a kind of pseudo- double -impeller pump there is no combination mutually, because it is not improved the lift of single motor and efficiency.
Utility model content
Technical problem to be solved in the utility model is overcome the shortcomings of in the prior art, and a kind of efficient, stream is provided
Measure big, lift height, high lubricating effect, bearing good heat dissipation, symmetrical impeller arrangement stable, easy to operate, with long service life
Double-impeller pump.
Technical solution used by the utility model is：The utility model includes pump assembly, is divided on the pump assembly
It not setting there are one liquid inlet and a liquid outlet, the pump assembly is interior to be equipped with electric machine assembly, and the electric machine assembly includes main shaft,
The both ends of the main shaft are separately connected the first impeller, the second impeller, between the tapping side and the pump assembly of first impeller
First order hydraulic fluid room is formed, forms second level hydraulic fluid room between the tapping side and the pump assembly of second impeller, described the
The inlet of two impellers is equipped with second level intake chamber, and the liquid inlet is passed through the entrance of first impeller, the second level pressure
Liquid chamber is connected with the liquid outlet, is connected by drain runner between first order hydraulic fluid room and the second level intake chamber
It is logical；Liquid enters from the liquid inlet, flows out to first order hydraulic fluid room after first impeller once supercharging, then pass through
Enter second impeller through the second level intake chamber after the drain runner, is flowed out after the second impeller secondary booster
Second level hydraulic fluid room is arrived afterwards, is finally flowed out from the liquid outlet.
The electric machine assembly further includes the stator of belt coil, and rotor magnetic ring component is equipped in the mesoporous of the stator, described
Main shaft is mutually fixedly connected with the rotor magnetic ring component, and the main shaft is adapted by two bearings with the pump assembly fixed
Position is equipped with friction plate between two bearings and the both sides of the rotor magnetic ring component, to carry out axial limiting to rotor, prevent
When rotor or so vibration and bearing friction.
The bearing is sliding bearing.
The bearing uses self-lubrication alloy bearing.
First impeller, second impeller are closed or open or semi open model centrifugal impeller.
First impeller, second impeller blade it is oppositely oriented.
The utility model has the beneficial effects that：Since the utility model includes pump assembly, on the pump assembly respectively
If there are one liquid inlet and a liquid outlet, electric machine assembly is equipped in the pump assembly, the electric machine assembly includes main shaft, institute
The both ends for stating main shaft are separately connected the first impeller, the second impeller, shape between the tapping side and the pump assembly of first impeller
At first order hydraulic fluid room, formation second level hydraulic fluid room between the tapping side and the pump assembly of second impeller, described second
The inlet of impeller is equipped with second level intake chamber, and the liquid inlet is passed through the entrance of first impeller, the second level hydraulic fluid
Room is connected with the liquid outlet, is connected by drain runner between first order hydraulic fluid room and the second level intake chamber
It is logical；Liquid enters from the liquid inlet, flows out to first order hydraulic fluid room after first impeller once supercharging, then pass through
Enter second impeller through the second level intake chamber after the drain runner, is flowed out after the second impeller secondary booster
Second level hydraulic fluid room is arrived afterwards, is finally flowed out from the liquid outlet；The utility model is same by a motor and a main shaft
When drive two impellers, by the way that electric machine assembly is built in the pump housing, the impeller at motor direct-drive both ends, to the feed liquor of impeller
There is no any drag effects, while eliminating complicated movable sealing structure；Drive two impellers, bilobed wheel same by a rotor
When pump liquid, and form secondary booster, therefore the lift of pump greatly improved, while improving electric efficiency, can be by microminiature pump
Efficiency greatly improve；Two impellers are distributed in rotor both sides, and bearings at both ends can effectively be lubricated, and reduce friction resistance
Power, when high rotating speed, liquid stream can take away the heat that axis is generated with bearing friction in time, and symmetrical impeller solves the flat of axial force
Weighing apparatus, can offset axial force, and structure is more simple and reliable, avoids bearing excessive wear, and bearings at both ends is uniform by radial load, and operation is flat
Surely, the pump service life greatly improves；In addition the utility model does not need human intervention, is truly realized and exempts to tie up it is not necessary that gas vent is arranged
Shield, it is easy to operate；Therefore the double-impeller pump of the symmetrical impeller arrangement of the utility model is efficient, flow is big, lift is high, lubrication effect
Fruit is good, bearing good heat dissipation, stable, easy to operate, service life is long.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the double-impeller pump of the symmetrical impeller arrangement of the utility model embodiment；
Fig. 2 is the positive structure schematic of the double-impeller pump of symmetrical impeller arrangement shown in Fig. 1；
Fig. 3 is the structure schematic diagram of the double-impeller pump of symmetrical impeller arrangement shown in Fig. 1；
Fig. 4 is A-A section structure diagrams shown in Fig. 3；
Fig. 5 is the left view of the double-impeller pump of symmetrical impeller arrangement shown in Fig. 2；
Fig. 6 is B-B section structure diagrams shown in Fig. 5.
Specific implementation mode
As shown in Fig. 1~Fig. 6, the double-impeller pump of the symmetrical impeller arrangement of the present embodiment includes pump assembly 1, the pump
It is respectively equipped with a liquid inlet 2 and a liquid outlet 3 on body component 1, electric machine assembly, the electricity are equipped in the pump assembly 1
Thermomechanical components include the stator 5 of main shaft 8, belt coil, and the both ends of the main shaft 8 are separately connected the first impeller 6, the second impeller 7, described
Rotor magnetic ring component 9 is equipped in the mesoporous of stator 5, the main shaft 8 is fixedly connected with 9 phase of rotor magnetic ring component, the master
Axis 8 is adapted positioning, two bearings 10 and the rotor magnetic ring component 9 with the pump assembly 1 by two bearings 10
Both sides between be equipped with friction plate 11, to carry out axial limiting to rotor, when preventing rotor or so vibration and bearing friction, this implementation
In example, the bearing 10 is sliding bearing, and the bearing 10 uses self-lubrication alloy bearing, and can solve to lubricate in liquid asks
Topic, first impeller 6, second impeller 7 are closed type centrifugal impeller, naturally it is also possible to be open or semi open model
Centrifugal impeller, first impeller 6, second impeller 7 blade it is oppositely oriented, the tapping side of first impeller 6 with
First order hydraulic fluid room 21 is formed between the pump assembly 1, is formed between the tapping side and the pump assembly 1 of second impeller 7
Second level hydraulic fluid room 30, the inlet of second impeller 7 are equipped with second level intake chamber 31, and the liquid inlet 2 is passed through described the
The entrance of one impeller 6, second level hydraulic fluid room 30 are connected with the liquid outlet 3, first order hydraulic fluid room 21 with it is described
It is connected by drain runner 4 between second level intake chamber 31；Liquid enters from the liquid inlet 2, through first impeller 6 one
Flow out to first order hydraulic fluid room 21 after secondary supercharging, then by after the drain runner 4 through the second level intake chamber 31 into
Enter second impeller 7, second level hydraulic fluid room 30 is arrived after being flowed out after 7 secondary booster of the second impeller, finally from institute
State the outflow of liquid outlet 3.
By experiment test, using the pump motor of same model, and the feelings that unit fixed on water pump suction bore is consistent with outlet bore
Under condition, the related data of the double-impeller pump of the symmetrical impeller arrangement of single-impeller pump and the present embodiment is tested respectively, it is known that this reality
Apply the symmetrical impeller arrangement of example two stage centrifugal pump lift improve 50~60%, flow improve 10~20%, efficiency improve 10~
30%, therefore, the lift of pump greatly improved in the double-impeller pump of the symmetrical impeller arrangement of the present embodiment, while improving pump
Efficiency.
The utility model drives two impellers simultaneously by a motor and a main shaft, by the way that electric machine assembly to be built in
In the pump housing, the impeller at motor direct-drive both ends does not have any drag effects to the feed liquor of impeller, while eliminating complicated move
Sealing structure；Two impellers, bilobed wheel pump liquid, and formation secondary booster simultaneously are driven by a rotor, therefore is greatly improved
The lift of pump, while electric efficiency is improved, the efficiency of microminiature pump can be greatly improved；Two impellers are distributed in rotor two
Side, bearings at both ends can effectively be lubricated, reducing friction resistance, and when high rotating speed, liquid stream can take away axis and axis in time
The heat that friction generates is held, symmetrical impeller solves the balance of axial force, can offset axial force, and structure is more simple and reliable,
Bearing excessive wear is avoided, bearings at both ends is uniform by radial load, operates steadily, and the pump service life greatly improves；In addition this practicality is new
Type does not need human intervention it is not necessary that gas vent is arranged, be truly realized it is non-maintaining, it is easy to operate；Therefore the symmetrical leaf of the utility model
The double-impeller pump of wheel layout is efficient, flow is big, lift is high, high lubricating effect, bearing good heat dissipation, stable, operation is simple
Just, service life is long, has accomplished that efficient, at low cost, power is low, lift is big, has been suitable for pump computer, automotive pump, HVAC hot water
The multiple types such as circulating pump, pipeline pump, solar pumping, air conditioning pump pump, and adapt to a variety of use occasions, and are suitable for micro- from several watts
Type pumps the mammoth pump to hundreds of kilowatts, therefore use scope is extensive.
The utility model can be widely applied to pump field.
Claims (6)
1. a kind of double-impeller pump of symmetrical impeller arrangement, it is characterised in that：Including pump assembly (1), the pump assembly (1)
On be respectively equipped with a liquid inlet (2) and a liquid outlet (3), electric machine assembly, the motor are equipped in the pump assembly (1)
Component includes main shaft (8), and the both ends of the main shaft (8) are separately connected the first impeller (6), the second impeller (7), first impeller
(6) between tapping side and the pump assembly (1) formed first order hydraulic fluid room (21), the tapping side of second impeller (7) with
Second level hydraulic fluid room (30) are formed between the pump assembly (1), the inlet of second impeller (7) is equipped with second level intake chamber
(31), the liquid inlet (2) is passed through the entrance of first impeller (6), second level hydraulic fluid room (30) and the liquid outlet
(3) it is connected, is connected by drain runner (4) between first order hydraulic fluid room (21) and the second level intake chamber (31)
It is logical；Liquid enters from the liquid inlet (2), and first order hydraulic fluid room is flowed out to after first impeller (6) once supercharging
(21), then by the drain runner (4) by the second level intake chamber (31) enter second impeller (7), through described
Second level hydraulic fluid room (30) is arrived after being flowed out after second impeller (7) secondary booster, is finally flowed out from the liquid outlet (3).
2. the double-impeller pump of symmetrical impeller arrangement according to claim 1, it is characterised in that：The electric machine assembly also wraps
Include the stator (5) of belt coil, be equipped with rotor magnetic ring component (9) in the mesoporous of the stator (5), the main shaft (8) with described turn
Sub- magnetic ring component (9) is mutually fixedly connected, and the main shaft (8) is adapted by two bearings (10) with the pump assembly (1) fixed
Position is equipped with friction plate (11) between two bearings (10) and the both sides of the rotor magnetic ring component (9), to carry out axis to rotor
To limit, when preventing rotor or so vibration and bearing friction.
3. the double-impeller pump of symmetrical impeller arrangement according to claim 2, it is characterised in that：The bearing (10) is sliding
Dynamic bearing.
4. the double-impeller pump of symmetrical impeller arrangement according to claim 3, it is characterised in that：The bearing (10) uses
Self-lubrication alloy bearing.
5. the double-impeller pump of symmetrical impeller arrangement according to claim 1, it is characterised in that：First impeller (6),
Second impeller (7) is closed or open or semi open model centrifugal impeller.
6. the double-impeller pump of symmetrical impeller arrangement according to claim 5, it is characterised in that：First impeller (6),
The blade of second impeller (7) it is oppositely oriented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820222122.9U CN207920880U (en) | 2018-02-07 | 2018-02-07 | The double-impeller pump of symmetrical impeller arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820222122.9U CN207920880U (en) | 2018-02-07 | 2018-02-07 | The double-impeller pump of symmetrical impeller arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207920880U true CN207920880U (en) | 2018-09-28 |
Family
ID=63603917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820222122.9U Expired - Fee Related CN207920880U (en) | 2018-02-07 | 2018-02-07 | The double-impeller pump of symmetrical impeller arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207920880U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266379A (en) * | 2018-02-07 | 2018-07-10 | 双极泵业科技（珠海）有限公司 | The double-impeller pump of symmetrical impeller arrangement |
| CN109973394A (en) * | 2019-04-12 | 2019-07-05 | 丹东克隆先锋泵业有限公司 | Double drive second level magnetic drive pumps |
| EP4124757A1 (en) * | 2021-07-28 | 2023-02-01 | Pedrollo S.p.a. | Centrifugal pump with opposed impellers |
-
2018
- 2018-02-07 CN CN201820222122.9U patent/CN207920880U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266379A (en) * | 2018-02-07 | 2018-07-10 | 双极泵业科技（珠海）有限公司 | The double-impeller pump of symmetrical impeller arrangement |
| WO2019153805A1 (en) * | 2018-02-07 | 2019-08-15 | 双极泵业科技（珠海）有限公司 | Two-stage centrifugal pump having symmetrical impeller arrangement |
| CN109973394A (en) * | 2019-04-12 | 2019-07-05 | 丹东克隆先锋泵业有限公司 | Double drive second level magnetic drive pumps |
| EP4124757A1 (en) * | 2021-07-28 | 2023-02-01 | Pedrollo S.p.a. | Centrifugal pump with opposed impellers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180928 Termination date: 20210207 |
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| CF01 | Termination of patent right due to non-payment of annual fee |