CN207246024U - A kind of concentric multi-grade centrifugal pump - Google Patents
A kind of concentric multi-grade centrifugal pump Download PDFInfo
- Publication number
- CN207246024U CN207246024U CN201721292780.7U CN201721292780U CN207246024U CN 207246024 U CN207246024 U CN 207246024U CN 201721292780 U CN201721292780 U CN 201721292780U CN 207246024 U CN207246024 U CN 207246024U
- Authority
- CN
- China
- Prior art keywords
- luntai
- pump
- stage body
- lobe
- internal lobe
- 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
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Abstract
The utility model provides a kind of concentric multi-grade centrifugal pump, belongs to machinery manufacturing technology field.It solve the problems, such as existing centrifugation pump startup speed compared with it is slow, work efficiency is low etc..This concentric multi-grade centrifugal pump, including pump case and the drive shaft being set up in pump case, pump case has pump chamber and inlet and liquid outlet, the shaft head of drive shaft is provided with internal lobe Luntai, intake tunnel and exhalant canal are offered on internal lobe Luntai, siphonal lobe Luntai is additionally provided with pump chamber, siphonal lobe Luntai includes wheel body close-fitting with internal lobe Luntai and along housing axially extending the first stage body and the second stage body, first stage body is arranged between pump case and internal lobe Luntai, second stage body, which extends back, to be penetrated inside pump chamber, outer level bearing is arranged with the outer end face of first stage body and the second stage body, the tail end of second stage body is provided with the driving motor that driving siphonal lobe Luntai rotates, interface channel is offered on wheel body.The utility model has the advantages that startup speed is fast, work efficiency is high.
Description
Technical field
The utility model belongs to machinery manufacturing technology field, is related to a kind of centrifugal pump, more particularly to a kind of concentric multi-grade from
Heart pump.
Background technology
A kind of pump that operating is driven by motor of centrifugal electric pump, it drives fluid by pumping the centrifugal force that inner impeller produces
Rotation complete the conveying of fluid, be mainly made of impeller and pump case, inlet and liquid outlet, pump work offered on pump case
Liquid is sucked from inlet, then passes through the CENTRIFUGAL ACCELERATING of pump housing inner impeller so that fluid obtains the kinetic energy of bigger from pump
Go out liquid and open outflow.Centrifugal electric pump species is various, according to the demand to power, is divided into single stage centrifugal electric pump and multistage centrifugal
Electric pump, the multistage centrifugal pump structure on existing market is relatively simple, when centrifugal pump just has started to start, due to impeller and stream
There are larger friction between body, cause the startup speed of centrifugal pump slower, influence work efficiency.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided one kind start speed it is fast,
The high concentric multi-grade centrifugal pump of work efficiency.
The purpose of this utility model can be realized by following technical proposal：A kind of concentric multi-grade centrifugal pump, including pump case
And the drive shaft in pump case is set up in, installation bearing is connected between the drive shaft and pump case, the pump case has
Pump chamber and the inlet and liquid outlet being interconnected with pump chamber, it is characterised in that the shaft head of the drive shaft is provided with
Internal lobe Luntai, offers axial intake tunnel and the exhalant canal of radial direction on the internal lobe Luntai, in the pump chamber also
It is provided with siphonal lobe Luntai, the siphonal lobe Luntai includes wheel body close-fitting with internal lobe Luntai and axially extending along housing
First stage body and the second stage body, first stage body be arranged between pump case and internal lobe Luntai be used for spaced radial pump case with
Internal lobe Luntai, second stage body, which extends back, to be penetrated inside pump chamber, the outer end face of first stage body and the second stage body
On be arranged with outer level bearing, the outer level bearing is used to support the rotation of siphonal lobe Luntai, and the tail end of second stage body is set
The driving motor that independent driving siphonal lobe Luntai rotates is equipped with, the company of connection exhalant canal and liquid outlet is offered on the wheel body
Connect road.
The technique effect of this concentric multi-grade centrifugal pump：When internal lobe Luntai rotates being driven by drive shaft, from inlet
Fluid exhalant canal is flowed to by intake tunnel, siphonal lobe Luntai is set relative to intra vane concentric locating, on siphonal lobe Luntai
Interface channel receives fluid from the exhalant canal of internal lobe Luntai, and conveys extra energy from siphonal lobe Luntai before fluid leaves
Amount, when drive shaft drives internal lobe Luntai, can be driven on one's own initiative by using independent drive motor with quick speed
Or rotation siphonal lobe Luntai, to establish desired pressure, once reaching required pressure, drive motor can be closed, made
Obtain siphonal lobe Luntai to rotate freely, and the connection fluid force of the fluid by being provided by driven internal lobe Luntai provides and is applied to out rotor
Driving energy on platform, is rotated in this arrangement internal lobe Luntai with First Speed, and siphonal lobe Luntai is rotated with less second rotating speed,
So as to improve the operating efficiency of pump.
In a kind of above-mentioned concentric multi-grade centrifugal pump, the internal lobe Luntai has axial raised point of water platform, described
Divide water platform that inlet is divided into two parts symmetrical above and below.Inlet is divided into two parts and plays water-saving effect, while again
The water outlet efficiency of pump can be improved.
In a kind of above-mentioned concentric multi-grade centrifugal pump, the interface channel is in unlimited horn-like, its large diameter portion
Towards liquid outlet.Slow down impact of the pump shell-side fluid to connecting pipe, reduce the generation of noise.
In a kind of above-mentioned concentric multi-grade centrifugal pump, the front end of the liquid outlet is provided with fluid diffuser.Pass through
Fluid diffuser flows to liquid outlet again, and high-velocity fluid energy is converted into the fluid energy compared with low velocity by fluid diffuser, so that
Increase the pressure of fluid when fluid is directed into liquid outlet.
In a kind of above-mentioned concentric multi-grade centrifugal pump, seal is provided between the internal lobe Luntai and inlet,
Described seal one end is resisted against on pump case end wall, its other end is engaged with internal lobe Luntai front end face.Improve inner impeller
The sealing performance of platform and pump case, prevents the fluid of inlet from the phenomenon of leakage occurs, improves the stability of centrifugation pump work.
Compared with prior art, cooperated and revolved by internal lobe Luntai and siphonal lobe Luntai during this concentric multi-grade centrifugation pump startup
Transfer realization quickly to start, have the advantages that startup speed is fast, work efficiency is high.
Brief description of the drawings
Fig. 1 is the structure sectional view of this concentric multi-grade centrifugal pump.
In figure, 1, pump case；2nd, drive shaft；The 3rd, bearing is installed；4th, inlet；5th, liquid outlet；6th, internal lobe Luntai；7th, water inlet is logical
Road；8th, exhalant canal；9th, siphonal lobe Luntai；10th, wheel body；11st, the first stage body；12nd, the second stage body；13rd, outer level bearing；14th, drive
Motor；15th, interface channel；16th, Fen Shuitai；17th, fluid diffuser；18th, seal.
Embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, this concentric multi-grade centrifugal pump, including pump case 1 and the drive shaft 2 that is set up in pump case 1, drive shaft
Installation bearing 3 is connected between 2 and pump case 1, pump case 1 has pump chamber and the inlet 4 and liquid outlet that are interconnected with pump chamber
5, the shaft head of drive shaft 2 is provided with internal lobe Luntai 6, and the water outlet of axial intake tunnel 7 and radial direction is offered on internal lobe Luntai 6
Passage 8, is additionally provided with siphonal lobe Luntai 9 in pump chamber, siphonal lobe Luntai 9 includes wheel body 10 close-fitting with internal lobe Luntai 6 and edge
Housing axially extending the first stage body 11 and the second stage body 12, the first stage body 11 are arranged between pump case 1 and internal lobe Luntai 6 and use
In spaced radial pump case 1 and internal lobe Luntai 6, the second stage body 12, which extends back, to be penetrated inside pump chamber, the first stage body 11 and second
Outer level bearing 13 is arranged with the outer end face of body 12, outer level bearing 13 is used to support siphonal lobe Luntai 9 and rotates, the second stage body 12
Tail end is provided with the driving motor 14 that independent driving siphonal lobe Luntai 9 rotates, and offers connection exhalant canal 8 on wheel body 10 and goes out liquid
The interface channel 15 of mouth 5.
In order to improve the water outlet efficiency of pump, internal lobe Luntai 6 has axial raised point of water platform 16, divides water platform 16 by inlet
4 are divided into two parts symmetrical above and below.
In order to slow down impact of the fluid to connecting pipe in pump case 1, the generation of noise is reduced, interface channel 15 is in what is opened wide
Horn-like, its large diameter portion is towards liquid outlet 5.
Increase the pressure of fluid when being directed into liquid outlet 5 for fluid, the front end of liquid outlet 5 is provided with fluid diffuser
17。
The phenomenon of leakage occurs for inlet 4 in order to prevent, the stability of centrifugal pump is influenced, between internal lobe Luntai 6 and inlet 4
Seal 18 is provided with, 18 one end of seal is resisted against on 1 end wall of pump case, its other end is contacted with 6 front end face of internal lobe Luntai matches somebody with somebody
Close.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although pump case 1, drive shaft 2, installation bearing 3, inlet 4, liquid outlet 5, internal lobe Luntai is used more herein
6th, intake tunnel 7, exhalant canal 8, siphonal lobe Luntai 9, wheel body 10, the first stage body 11, the second stage body 12, outer level bearing 13, driving
Motor 14, interface channel 15, divide the terms such as water platform 16, fluid diffuser 17, seal 18, but is not precluded from using other terms
Possibility.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；They are explained
All it is contrary to the spirit of the present invention into any one of the additional limitations.
Claims (5)
1. a kind of concentric multi-grade centrifugal pump, including pump case（1）And it is set up in pump case（1）Interior drive shaft（2）, the driving
Axis（2）With pump case（1）Between be connected with installation bearing（3）, the pump case（1）It is interconnected with pump chamber and with pump chamber
Inlet（4）And liquid outlet（5）, it is characterised in that the drive shaft（2）Shaft head be provided with internal lobe Luntai（6）, it is described
Internal lobe Luntai（6）On offer axial intake tunnel（7）With the exhalant canal of radial direction（8）, also set up in the pump chamber
There is siphonal lobe Luntai（9）, the siphonal lobe Luntai（9）Including with internal lobe Luntai（6）Close-fitting wheel body（10）And along housing
The first axially extending stage body（11）And second stage body（12）, first stage body（11）It is arranged at pump case（1）With internal lobe
Luntai（6）Between be used for spaced radial pump case（1）With internal lobe Luntai（6）, second stage body（12）Extend back and penetrate pump
Intracavitary portion, first stage body（11）With the second stage body（12）Outer end face on be arranged with outer level bearing（13）, it is described
Outer level bearing（13）It is used to support siphonal lobe Luntai（9）Rotation, second stage body（12）Tail end to be provided with independent driving outer
Impeller platform（9）The driving motor of rotation（14）, the wheel body（10）On offer connection exhalant canal（8）With liquid outlet（5）
Interface channel（15）.
A kind of 2. concentric multi-grade centrifugal pump according to claim 1, it is characterised in that the internal lobe Luntai（6）Have
Axial raised point of water platform（16）, the Fen Shuitai（16）By inlet（4）It is divided into two parts symmetrical above and below.
A kind of 3. concentric multi-grade centrifugal pump according to claim 1, it is characterised in that the interface channel（15）In spacious
That opens is horn-like, its large diameter portion is towards liquid outlet（5）.
A kind of 4. concentric multi-grade centrifugal pump according to claim 1, it is characterised in that the liquid outlet（5）Front end
It is provided with fluid diffuser（17）.
A kind of 5. concentric multi-grade centrifugal pump according to claim 1, it is characterised in that the internal lobe Luntai（6）With into
Liquid mouth（4）Between be provided with seal（18）, the seal（18）One end is resisted against pump case（1）On end wall, its other end
With internal lobe Luntai（6）Front end face is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292780.7U CN207246024U (en) | 2017-10-09 | 2017-10-09 | A kind of concentric multi-grade centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721292780.7U CN207246024U (en) | 2017-10-09 | 2017-10-09 | A kind of concentric multi-grade centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207246024U true CN207246024U (en) | 2018-04-17 |
Family
ID=61889893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721292780.7U Expired - Fee Related CN207246024U (en) | 2017-10-09 | 2017-10-09 | A kind of concentric multi-grade centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207246024U (en) |
-
2017
- 2017-10-09 CN CN201721292780.7U patent/CN207246024U/en not_active Expired - Fee Related
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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: 20180417 Termination date: 20201009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |