CN207961076U - A kind of centrifugal pump structure using the double-deck guide vane blade - Google Patents
A kind of centrifugal pump structure using the double-deck guide vane blade Download PDFInfo
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- CN207961076U CN207961076U CN201820205943.1U CN201820205943U CN207961076U CN 207961076 U CN207961076 U CN 207961076U CN 201820205943 U CN201820205943 U CN 201820205943U CN 207961076 U CN207961076 U CN 207961076U
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- guide vane
- vane blade
- blade
- centrifugal pump
- double
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Abstract
The utility model discloses a kind of centrifugal pump structures using the double-deck guide vane blade, are mainly made of from inside to outside impeller, guide vane and spiral case, include several groups bilayer guide vane blade in the guide vane；The guide vane blade that every group of bilayer guide vane blade is arranged in parallel by two layers is constituted, one layer of guide vane blade patch guide vane front shroud, another layer of guide vane blade paste guide vane back shroud, there are preset gap between two layers of guide vane blade, the optimum width in gap is 0.4~0.6 times of gate vane channel width；The utility model is simple in structure, is easily achieved, and can not only improve the pressure-recovery factor of fluid, but also can reduce the radial load acted on impeller, increase the service life of centrifugal pump.
Description
Technical field
The utility model is related to hydraulic technical fields, and in particular to a kind of centrifugal pump knot using the double-deck guide vane blade
Structure.
Background technology
Centrifugal pump is widely used in the every field of national economy as a kind of universal machine.Centrifugal pump is the height by impeller
Speed rotation converts mechanical energy into the kinetic energy of liquid and pressure energy and the pump that works.Centrifugal Pump, the lift scope of application are big, effect
Rate is higher, dependable performance.Guide vane is an important accessory of centrifugal pump.
Existing guide vane only has one layer of guide vane blade, as follows using the centrifugal pump operation principle of this guide vane：When centrifugal pump work
When making, the centrifugal force that impeller rotation generates throws liquid from the outlet of impeller out, and impeller is thrown away the fluid collection come by guide vane
Get up, the flow velocity of fluid is made to reduce, after partial velocity energy head is changed into pressure energy head, then is uniformly introduced spiral case or next stage
Entrance.Impeller and guide vane, which interfere with each other, will produce stator-rotor interaction flow phenomenon, and pressure fluctuation is generated in guide vane.These pulsation
The noise of generation and vibration can form alternate stress, reduce the service life of pump.Therefore, there is also one in design for existing guide vane
Fixed deficiency, it is difficult to meet the requirement of client.
Invention content
To solve the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of using the double-deck guide vane
The centrifugal pump structure of blade extends centrifugal pump service life, improves the overall performance of centrifugal pump.
In order to achieve the above object, the utility model is achieved through the following technical solutions：
A kind of centrifugal pump structure using the double-deck guide vane blade, from inside to outside mainly by 3 structure of impeller 1, guide vane 2 and spiral case
At including several groups bilayer guide vane blade 21 in the guide vane 2；The guide vane leaf that every group of bilayer guide vane blade is arranged in parallel by two layers
Piece 211 is constituted, one layer of guide vane blade patch guide vane front shroud, another layer of guide vane blade patch guide vane back shroud, between two layers of guide vane blade
There are preset gaps.
The quantity of the double-deck guide vane blade 21 is 4~8 groups.
The optimum width in 211 gap of guide vane blade of two layers of parallel arrangement is the 0.4~0.6 of gate vane channel width
Times.
Relative to pervious structure, the utility model must only be led using the centrifugal pump structure of the double-deck guide vane blade original
Existing guide vane blade is cut on the basis of blade type centrifugal pump, single layer guide vane blade is become into several groups bilayer guide vane leaf
Piece, two layers of guide vane blade parallel arrangement in the double-deck guide vane blade, there are certain gaps between two layers of guide vane blade, this is easy to operate
It is convenient, it is easy to accomplish, following advantageous effect can be reached：
1, reduce alternate stress suffered on impeller, to reduce the damage of the components such as bearing, sealing, extend centrifugal pump
Service life.
2, the pressure-recovery factor of fluid can be not only improved, but also centrifugal pump high efficient district can be widened, improves the whole of centrifugal pump
Machine performance.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model centrifugal pump.
Fig. 2 is the front view of guide vane in the utility model centrifugal pump.
Fig. 3 is the side view of guide vane in the utility model centrifugal pump.
Specific implementation mode：
The utility model is described in more detail with reference to the accompanying drawings and examples, but should not limit this reality with this
With novel protection domain.
As shown in Figure 1, Figure 2 and Figure 3, a kind of centrifugal pump structure using the double-deck guide vane blade of the utility model, by introversion
It is mainly made of outside impeller 1, guide vane 2 and spiral case 3, includes several groups bilayer guide vane blade 21 in the guide vane 2；Every group of bilayer is led
The guide vane blade 211 that leaf blade 21 is arranged in parallel by two layers is constituted, one layer of patch guide vane front shroud, another layer of patch guide vane back shroud,
There are certain gaps between two layers of guide vane blade.
As preferred embodiments of the present invention, the quantity of the bilayer guide vane blade 21 is 4~8 groups.
As preferred embodiments of the present invention, it is described two layers parallel arrangement 211 gap of guide vane blade it is best
Width is 0.4~0.6 times of gate vane channel width.
Operation principle：Original guide vane cutting at two parts, intermediate there are certain gaps, calculation shows that two layers of guide vane
Blade can significantly improve the flow condition in guide vane, improve the pressure-recovery factor of guide vane and reduce in centrifugal pump spiral casing
Energy loss improves the hydraulic performance of spiral case, reduces radial load, keeps radial fluctuation more steady, increase the use of centrifugal pump
Service life, following table are before improving and the improved overall target table of comparisons：
Use the performance of centrifugal pump parameter of traditional guide vane：
Use the performance of centrifugal pump parameter of the utility model：
Claims (3)
1. a kind of centrifugal pump structure using the double-deck guide vane blade, from inside to outside mainly by impeller (1), guide vane (2) and spiral case (3)
It constitutes, it is characterised in that：It include several groups bilayer guide vane blade (21) in the guide vane (2)；Every group of bilayer guide vane blade is by two
The guide vane blade (211) of layer parallel arrangement is constituted, after one layer of guide vane blade patch guide vane front shroud, another layer of guide vane blade patch guide vane
Cover board, there are preset gaps between two layers of guide vane blade.
2. a kind of centrifugal pump structure using the double-deck guide vane blade as described in claim 1, it is characterised in that：The bilayer
The quantity of guide vane blade (21) is 4~8 groups.
3. a kind of centrifugal pump structure using the double-deck guide vane blade as described in claim 1, it is characterised in that：Described two layers
The width in guide vane blade (211) gap of parallel arrangement is 0.4~0.6 times of gate vane channel width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205943.1U CN207961076U (en) | 2018-02-06 | 2018-02-06 | A kind of centrifugal pump structure using the double-deck guide vane blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205943.1U CN207961076U (en) | 2018-02-06 | 2018-02-06 | A kind of centrifugal pump structure using the double-deck guide vane blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207961076U true CN207961076U (en) | 2018-10-12 |
Family
ID=63737571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820205943.1U Active CN207961076U (en) | 2018-02-06 | 2018-02-06 | A kind of centrifugal pump structure using the double-deck guide vane blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207961076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131329A (en) * | 2018-02-06 | 2018-06-08 | 西安交通大学 | A kind of centrifugal pump using double-deck guide vane blade |
-
2018
- 2018-02-06 CN CN201820205943.1U patent/CN207961076U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131329A (en) * | 2018-02-06 | 2018-06-08 | 西安交通大学 | A kind of centrifugal pump using double-deck guide vane blade |
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