CN107795497A - Single impeller two-stage vortex air pump - Google Patents
Single impeller two-stage vortex air pump Download PDFInfo
- Publication number
- CN107795497A CN107795497A CN201610787771.9A CN201610787771A CN107795497A CN 107795497 A CN107795497 A CN 107795497A CN 201610787771 A CN201610787771 A CN 201610787771A CN 107795497 A CN107795497 A CN 107795497A
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- CN
- China
- Prior art keywords
- impeller
- pump
- vortex
- air pump
- stage
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/14—Multi-stage pumps with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side-loads
-
- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of single impeller two-stage vortex air pump, the function of double-stage vortex pump is realized with an impeller.Using former and later two working faces in single impeller as two cell levels of vortex pump, rear working face (8) and the rear runner of impeller (5)（3）Form the first order of vortex pump, leading face (9) and the preceding runner of impeller (5)（1）Form the second level of vortex pump；It is connected between the first order and the second level by bottom passage (10), bottom passage is placed between the air inlet of air pump and air outlet, and the function of the series boosting of double-stage vortex pump is realized by bottom passage；Isolation strip (11) are set on the cylindrical centre of impeller (5), the leading face (9) of impeller (5) is realized isolating for high and low nip by isolation strip (11) with rear working face (8).The two-stage vortex air pump of the present invention than prior art two-stage vortex air pump in structure few an impeller and a dividing plate, reduce the number of component, reduce caused accumulated error during assembling so that easy to process, assembling is simply, volume is also reduced simultaneously, reduces cost.
Description
Technical field
The present invention relates to a kind of two-stage vortex air pump, more precisely, being to be related to one kind only to realize two with an impeller
The two-stage vortex air pump of individual cell level function.
Background technology
Vortex pump is a kind of air pump for being used for producing high pressure draught.In the product of prior art, typically by one
Cell level of the structure as a generation pressure where impeller.In order to obtain higher pressure, except increase vortex pump
Outside impeller diameter, another common method is that the vortex pump of two cell levels is together in series use, i.e., by first list
The outlet of first level is connected to using passage in the import of second cell level, and this two-stage series connection is referred to as connecting using function to be increased
Pressure, realizes that the vortex pump of series boosting is referred to as two-stage vortex air pump in same machine.Application No.:
CN201220364641.1, publication number:CN202789558U patent《A kind of twin-stage high pressure volution blast engine》, it is exactly this
Kind two-stage vortex air pump.Most significant common trait is to employ two impellers, and is referred to as " 12 intermediate casing " using one
Part separates two impellers as division board, and the outlet of previous stage enters the import of next stage by dividing plate, forms two solely
Vertical cell level.
Because the two-stage vortex air pump of prior art employs two impellers, and set in two impellers one every
Plate.Therefore, part is more used by it, complicated, and processing is also inconvenient；Further, since the leaf more than single-stage vortex pump
Wheel and dividing plate both parts, add multiple seams and coordinate, easily produce accumulated error during assembling, poor quality's control, into
This is also higher.
The content of the invention
It is an object of the invention to create a kind of part it is few, it is simple in construction, easy to process, do not allow to be also easy to produce accumulated error,
The low two-stage vortex air pump of cost.For this purpose, the present invention is only with an impeller, and by the forward and backward of single impeller
Working face coordinates the design in impeller, isolation strip, underflow road etc., realizes twin-stage vortex respectively as two levels of vortex pump
Air pump function.
As shown in Figure 1, Figure 2, it is shown, a kind of single impeller two-stage vortex air pump, by preceding runner（1）, preceding cut water（2）, rear runner
（3）, rear cut water（4）, impeller (5), air inlet（6）, air outlet（7）Composition, it is characterized in that using former and later two in single impeller
Working face is as two levels of vortex pump, rear working face (8) and the rear runner of impeller（3）Form the first order of vortex pump, leaf
Take turns the leading face (9) of (5) and preceding runner（1）The second level of vortex pump is formed, is led between the first order and the second level bottom of by
Road (10) is connected.
The bottom passage (10) of described single impeller two-stage vortex air pump, it is characterized in that bottom passage (10) is placed on air inlet
（6）With air outlet（7）Between position, one end of bottom passage (10) is connected with the first order of vortex pump, bottom passage (10)
The other end is connected with the second level of vortex pump.
Described single impeller two-stage vortex air pump, isolation is set on the cylindrical centre of the impeller (5) of its feature vortex pump
Band (11), the leading face (9) of impeller (5) is realized isolating for high and low nip by isolation strip (11) with rear working face (8).
Due to two working faces of impeller (5) can only be distributed in only with two cell levels of an impeller (5), air pump,
Namely at the front portion of vortex pump and back, impeller (5) is in anterior and back centre, that is, by impeller (5) itself
Used as the dividing plate in the two-stage vortex air pump of prior art.The forward and backward cell level of air pump is by being arranged between import and export
Bottom passage (10) be together in series, the reality with the arrow in the path of the fluid of whole two-stage vortex air pump series connection circulation such as Fig. 2
Shown in line.
There is pressure differential between former and later two cell levels of single impeller two-stage vortex air pump, as shown in figure 1, the present invention is in impeller
Outer rim be provided with an isolation strip (11), isolation strip (11) are located on impeller, and co-rotational with impeller (5), be fortune
Dynamic part, and the air pump shell for forming runner is stationary parts, therefore the gap between isolation strip and air pump shell is made very
Small, such fluid stimulates the menstrual flow the resistance in the gap will be very big so that the fluid of former and later two cell levels of different pressures is not easy to ooze
Thoroughly, a certain degree of opposing seal is formed, so as to maintain the pressure of air pump each unit level.
After the wheel rotation of each cell level string, the pressure along the rotation direction of its circumference be gradually it is increased, therefore,
Also there is high and low pressure area in same cell level, the radial direction in the two different pressures areas is isolated by preceding cut water（2）, rear cut water
（4）To realize, as shown in Figure 3, Figure 4, i.e., the isolation in first module level different pressures area is by rear cut water（4）Realize, second unit
The isolation in level different pressures area is by preceding cut water（2）Realize.Forward and backward cut water also forces the fluid along bottom passage (10) by first module
Level enters second unit level, realizes the function of series boosting.
Beneficial effects of the present invention are：Compared with the two-stage vortex air pump of prior art, technical scheme is reduced
One impeller and dividing plate the two parts, reduce the number of component, reduce caused accumulation during assembling
Error so that easy to process, assembling simply, while also reduces volume, reduces cost.
Brief description of the drawings
Fig. 1 is the axial cross-sectional views of single impeller two-stage vortex air pump, major embodiment single impeller two-stage vortex air pump
Major part and assembly relation；When Fig. 2 is towards the first order of vortex pump, rear working face (8) and the rear runner of impeller（3）
Composition) outside drawing, the position of the figure major embodiment air inlet, air outlet and bottom passage, and whole single impeller twin-stage vortex
The flow direction of air pump fluid is same；Fig. 3 is to take preceding runner after impeller apart（1）Internal structure, cut water before major embodiment（2）Position
Put；Fig. 4 is to take the rear runner after impeller apart（3）Internal structure, cut water after major embodiment（4）Position；Fig. 5 is a reality
The shaft side figure of single impeller two-stage vortex air pump axial section, major embodiment is when wheel rotation, the phase of each part in actual product
To position and fluid direction of motion.
Embodiment
Fig. 5 is the example of single impeller two-stage vortex air pump.Rotated when impeller is driven by prime mover, the fluid conveyed is turning
Under working face (8) drives after dynamic impeller, the runner after the air inlet (6) shown in Fig. 2 enters（3）Carry out first time supercharging, leaf
Fluid air flow caused by wheel rotation presses direction shown in solid with the arrow in Fig. 5 and enters bottom passage (10), and through bottom passage
(10) preceding runner is entered（1）, then carry out second in the case where leading face (9) rotation of impeller drives again and be pressurized, and through Fig. 2 institutes
The air outlet outflow shown, it is achieved thereby that the function of series boosting.Compared with the two-stage vortex air pump of prior art, reduce one
Individual impeller and dividing plate the two parts, volume-diminished 15%, cost reduce 18%, reach improved purpose.
Claims (3)
- A kind of 1. single impeller two-stage vortex air pump, by preceding runner（1）, preceding cut water（2）, rear runner（3）, rear cut water（4）, impeller (5), air inlet（6）, air outlet（7）Composition, it is characterized in that being used as vortex pump by the use of former and later two working faces in single impeller Two levels, rear working face (8) and the rear runner of impeller（3）The first order of vortex pump is formed, the leading face (9) of impeller is with before Runner（1）The second level of vortex pump is formed, is connected between the first order and the second level by bottom passage (10).
- 2. the bottom passage (10) of single impeller two-stage vortex air pump according to claim 1, it is characterized in that bottom passage (10) is put Put in air inlet（6）With air outlet（7）Between position, one end of bottom passage (10) is connected with the first order of vortex pump, bottom The other end of passage (10) is connected with the second level of vortex pump.
- 3. single impeller two-stage vortex air pump according to claim 1, the cylindrical centre of the impeller (5) of its feature vortex pump Upper to set isolation strip (11), the leading face (9) of impeller (5) and rear working face (8) are realized high and low nip by isolation strip (11) Isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787771.9A CN107795497A (en) | 2016-08-31 | 2016-08-31 | Single impeller two-stage vortex air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610787771.9A CN107795497A (en) | 2016-08-31 | 2016-08-31 | Single impeller two-stage vortex air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795497A true CN107795497A (en) | 2018-03-13 |
Family
ID=61529487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610787771.9A Withdrawn CN107795497A (en) | 2016-08-31 | 2016-08-31 | Single impeller two-stage vortex air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795497A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901522A (en) * | 2021-01-29 | 2021-06-04 | 西安交通大学 | Vortex pump for fuel cell hydrogen recirculation |
-
2016
- 2016-08-31 CN CN201610787771.9A patent/CN107795497A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901522A (en) * | 2021-01-29 | 2021-06-04 | 西安交通大学 | Vortex pump for fuel cell hydrogen recirculation |
| CN112901522B (en) * | 2021-01-29 | 2022-04-22 | 西安交通大学 | Vortex pump for fuel cell hydrogen recirculation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180313 |