CN205330978U - Single -stage water circulation vacuum pump impeller - Google Patents
Single -stage water circulation vacuum pump impeller Download PDFInfo
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- CN205330978U CN205330978U CN201521111317.9U CN201521111317U CN205330978U CN 205330978 U CN205330978 U CN 205330978U CN 201521111317 U CN201521111317 U CN 201521111317U CN 205330978 U CN205330978 U CN 205330978U
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- impeller
- vacuum pump
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- ring vacuum
- hub
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Abstract
The utility model relates to a single -stage water circulation vacuum pump impeller, impeller include blade (1), impeller outer diameter (2), impeller hub (3), dismantlement hole (4), impeller axle journal (5) and wheel hub outside circular arc (6), preceding terminal surface step (7), rear end face step (8) and impeller height (9), impeller one end is equipped with blade (1), impeller hub (3), dismantles hole (4) and preceding terminal surface step (7), the impeller other end is equipped with impeller axle journal (5) and rear end face step (8), blade (1) and impeller outer diameter (2) parallel and level are for the integrated into one piece structure, impeller hub (3) are with a components of a whole that can function independently retaining ring body coupling of impeller, impeller integrated into one piece. The utility model discloses the integrative casting shaping of impeller, half circular structure is adopted to the blade design of impeller, and the impeller hub design has the keyway to retaining ring integration, the impeller axle journal design inside of impeller, and outside precision finishing is with cooperation mechanical seal's installation.
Description
Technical field
This utility model belongs to mechanical field, is specifically related to a kind of single-stage water-ring vacuum pump impeller。
Background technology
Water-ring vacuum pump is called for short water ring pump, it is widely used in vacuum sterilization, extrusion molding, beverage industry, food processing, vacuum drying, the fields such as vacuum filtration, owing in the course of the work, the compression process of gas is isothermal, so being not susceptible to danger when compression and suction explosion hazard gases, water-ring vacuum pump also can extract the moisture gas of dust-laden in addition。The core component of water-ring vacuum pump is impeller, its overall pumping performance having dominated water ring pump and job stability, service life etc.。Traditional impeller blade is welding forming, and blade is prismatic blade, and blade quantity is also different。Which results in impeller blade intensity not enough, pumping efficiency is low, and vibration is big waits great number of issues。For solving the problems referred to above, the special technical scheme that a kind of new impeller size and structure are provided。
Utility model content
In order to solve the problems referred to above that prior art exists, this utility model provides a kind of single-stage water-ring vacuum pump impeller。
The technical scheme that this utility model adopts is:
A kind of single-stage water-ring vacuum pump impeller, it thes improvement is that: described impeller includes blade (1), impeller outer diameter (2), impeller hub (3), removal hole (4), impeller axle journal (5) and wheel hub outer arc (6), front end face step (7), rear end face step (8) and impeller height (9)；
Described impeller one end is provided with blade (1), impeller hub (3), removal hole (4) and front end face step (7)；
The described impeller other end is provided with impeller axle journal (5) and rear end face step (8)；
Described blade (1) is concordant with impeller outer diameter (2), and be formed in one structure；
The split back-up ring one of impeller is connected by described impeller hub (3), and impeller is one-body molded。
Optionally, described impeller is provided with 18 blades (1), and the angle between described blade (1) is 20 degree, and described blade (1) adopts radian design, and blade (1) leading portion is prismatic blade, and the second half section is with radian。
Further, described blade (1) starts front end prismatic blade from impeller hub (3), with impeller central for the center of circle, diameter 164mm is the center of circle, inner radius 41mm, and outer radius 46mm does the circular arc of uniform thickness, the thickness top 4mm, bottom 5mm of described blade (1)。
Optionally, described impeller is applicable to the water-ring vacuum pump of tri-power models of 2.2KW, 3KW, 4KW；Described impeller height (9) adopts 44mm to be suitable for the water ring vacuum pump of 2.2KW, adopts 66mm to be suitable for the water ring vacuum pump of 3KW, adopts 83mm to be suitable for the water ring vacuum pump of 4KW, and the dimensional tolerance of described height (9) is within 3mm。
Further, described impeller outer diameter (2) adopts 212mm to be suitable for the water ring vacuum pump of 2.2KW, adopts 211mm to be suitable for the water ring vacuum pump of 3KW, adopts 210mm to be suitable for the water ring vacuum pump of 4KW。
Optionally, one end of described impeller is provided with removal hole (4), facilitates the dismounting of impeller；The design of described impeller hub (3) outside has wheel hub outer arc (6)。
Optionally, the other end of described impeller is provided with impeller axle journal (5), and described impeller axle journal (5) finishing of internal diameter is provided with keyway, coordinates with the motor shaft of vacuum pump, the outside polish of described impeller axle journal (5), coordinates with mechanical seal。
Optionally, described impeller is provided with removal hole (4) end face external diameter and is provided with front end face step (7), the step that described front end face step (7) is 0.07mm, other end external diameter is provided with rear end face step (8), the step that described rear end face step (8) is 0.1mm。
The beneficial effects of the utility model are:
(1) this utility model is by designing the blade quantity of impeller, the radian of blade, makes impeller blade not only intensity improve, and exhaust effect also significantly improves, and improves the pumping performance of vacuum pump。
(2) use the design novel impeller single-stage water-ring vacuum pump, under 80mbar suction pressure, the vacuum pump of supporting 2.2KW motor, the entrance speed of evacuation can be reached and reach 95m3/h；The vacuum pump of supporting 3KW motor, the entrance speed of evacuation reaches 130m3/h；The vacuum pump of supporting 4KW motor, the entrance speed of evacuation reaches 155m3/h；The ratio vacuum pump of numerous domestic brand, pumping efficiency improves percentage more than 20。
(3) this utility model is on impeller hub, the back-up ring integration equipped with set screw。Solving coordinating of conventional impellers back-up ring and impeller, because after long-term work, liquid penetrates into the problem within axis hole。
(4) impeller series of single-stage water-ring vacuum pump of the present utility model, the impeller axle journal design of impeller rear end, reserve large space to mechanical seal, the impeller axle journal of lengthening protects motor shaft completely, will not because touching liquid and corrosion。
(5) this utility model Impeller Design integrally casting molding post-treatment is to corresponding design size, comprises blade, wheel hub, impeller axle journal three part。The blade design of impeller adopts semi arch structure; impeller hub design is back-up ring integration; the impeller axle journal design of impeller is internal keyway; the installation that outside Precision Machining seals with cooperative mechanical, the Design of length of impeller axle journal meets can protect the axis hole of inside will not enter inside axis hole because of the fluid leakage in cavity completely。
Accompanying drawing explanation
Fig. 1 is the single-stage water-ring vacuum pump blade wheel structure schematic diagram that this utility model provides；
Fig. 2 is the single-stage water-ring vacuum pump impeller sectional view that this utility model provides；
Fig. 3 is the single-stage water-ring vacuum pump wheel nose ledge structure schematic diagram that this utility model provides；
Fig. 4 is the single-stage water-ring vacuum pump impeller rear end step structural representation that this utility model provides；
Fig. 5 is the graphics of the single-stage water-ring vacuum pump impeller that this utility model provides。
In figure: 1, blade；2, impeller outer diameter；3, impeller hub；4, removal hole；5, impeller axle journal；6, wheel hub outer arc；7, front end face step；8, rear end face step；9, impeller height；10,20 degree。
Detailed description of the invention
As shown in figures 1-4, this utility model provides a kind of single-stage water-ring vacuum pump impeller, and impeller includes blade 1, impeller outer diameter 2, impeller hub 3, removal hole 4, impeller axle journal 5 and wheel hub outer arc 6, front end face step 7, rear end face step 8 and impeller height 9；
Impeller one end is provided with blade 1, impeller hub 3, removal hole 4 and front end face step 7；
The impeller other end is provided with impeller axle journal 5 and rear end face step 8；
Blade 1 is concordant with impeller outer diameter 2, and be formed in one structure；
Impeller hub 3 internal structure of impeller, traditional split type back-up ring, is made of one, and impeller is one-body molded。Eliminate the fluid seepage probability to impeller axle journal endoporus, also improve the installation strength of back-up ring position。
Impeller is provided with 18 blades 1, and the angle between each blade 1 is 20 degree。Blade 1 adopts radian to design, and blade 1 leading portion is prismatic blade, and the second half section is with radian。Blade 1 starts front end prismatic blade from impeller hub 3, and with impeller central for the center of circle, diameter 164mm is the center of circle, inner radius 41mm, outer radius 46mm do the circular arc of uniform thickness, the thickness top 4mm of blade 1, bottom 5mm, this angle design improves the exhaust efficiency of impeller。
Impeller Design comprises three product sizes, to coordinate the single-stage water-ring vacuum pump of three models, including the water-ring vacuum pump of tri-power models of 2.2KW, 3KW, 4KW；Maximum according to motor shaft power, the height of impeller has done optimal design, the vacuum pump of 2.2KW motor, and the impeller height of the vacuum pump that impeller height is designed as impeller height 66mm, the 4KW motor of the vacuum pump of 44mm, 3KW motor is designed as 83mm。The dimensional tolerance of described height 9 is within 3mm。
Impeller outer diameter 2, calculating according to eccentric and clearance limit, impeller outer diameter 2 adopts 212mm to be suitable for the water ring vacuum pump of 2.2KW, adopts 211mm to be suitable for the water ring vacuum pump of 3KW, adopt 210mm to be suitable for the water ring vacuum pump of 4KW, improve impeller exhaust speed in vacuum pump substantially。
One end of described impeller is provided with removal hole 4, facilitates the dismounting of impeller；Outside described impeller hub 3, design has wheel hub outer arc 6, for improving gas and the liquid mobility at impeller internal。
The other end of described impeller is provided with impeller axle journal 5, and described impeller axle journal 5 finishing of internal diameter is provided with keyway, coordinates with the motor shaft of vacuum pump, and polish outside described impeller axle journal 5 coordinates with mechanical seal；Impeller axle journal 5 design can prevent liquid from entering motor shaft。
Impeller is provided with removal hole 4 end face external diameter and is provided with front end face step 7, and front end face step 7 is the step of 0.07mm, and other end external diameter is provided with rear end face step 8, and rear end face step 8 is the step of 0.1mm。This utility model design has trickle step, it is ensured that in vacuum pump design gaps situation, it is to avoid whole of impeller and other feature contacts up and down。
This utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but in its shape or structure, do any change; every have same or like with the application like technical scheme, all fall within protection domain of the present utility model。
Claims (8)
1. a single-stage water-ring vacuum pump impeller, it is characterized in that: described impeller includes blade (1), impeller outer diameter (2), impeller hub (3), removal hole (4), impeller axle journal (5) and wheel hub outer arc (6), front end face step (7), rear end face step (8) and impeller height (9)；
Described impeller one end is provided with blade (1), impeller hub (3), removal hole (4) and front end face step (7)；
The described impeller other end is provided with impeller axle journal (5) and rear end face step (8)；
Described blade (1) is concordant with impeller outer diameter (2), and be formed in one structure；
The split back-up ring one of impeller is connected by described impeller hub (3), and impeller is one-body molded。
2. a kind of single-stage water-ring vacuum pump impeller according to claim 1, it is characterized in that: described impeller is provided with 18 blades (1), angle between described blade (1) is 20 degree, described blade (1) adopts radian design, blade (1) leading portion is prismatic blade, and the second half section is with radian。
3. a kind of single-stage water-ring vacuum pump impeller according to claim 2, it is characterized in that: described blade (1) starts front end prismatic blade from impeller hub (3), with impeller central for the center of circle, diameter 164mm is the center of circle, inner radius 41mm, outer radius 46mm does the circular arc of uniform thickness, the thickness top 4mm, bottom 5mm of described blade (1)。
4. a kind of single-stage water-ring vacuum pump impeller according to claim 1, it is characterised in that: described impeller is applicable to the water-ring vacuum pump of tri-power models of 2.2KW, 3KW, 4KW；Described impeller height (9) adopts 44mm to be suitable for the water ring vacuum pump of 2.2KW, adopts 66mm to be suitable for the water ring vacuum pump of 3KW, adopts 83mm to be suitable for the water ring vacuum pump of 4KW, and the dimensional tolerance of described height (9) is within 3mm。
5. a kind of single-stage water-ring vacuum pump impeller according to claim 4, it is characterized in that: described impeller outer diameter (2) adopts 212mm to be suitable for the water ring vacuum pump of 2.2KW, adopt 211mm to be suitable for the water ring vacuum pump of 3KW, adopt 210mm to be suitable for the water ring vacuum pump of 4KW。
6. a kind of single-stage water-ring vacuum pump impeller according to claim 1, it is characterised in that: one end of described impeller is provided with removal hole (4), facilitates the dismounting of impeller；The design of described impeller hub (3) outside has wheel hub outer arc (6)。
7. a kind of single-stage water-ring vacuum pump impeller according to claim 1, it is characterized in that: the other end of described impeller is provided with impeller axle journal (5), described impeller axle journal (5) finishing of internal diameter is provided with keyway, coordinate with the motor shaft of vacuum pump, the outside polish of described impeller axle journal (5), coordinates with mechanical seal。
8. a kind of single-stage water-ring vacuum pump impeller according to claim 1, it is characterized in that: described impeller is provided with removal hole (4) end face external diameter and is provided with front end face step (7), the step that described front end face step (7) is 0.07mm, other end external diameter is provided with rear end face step (8), the step that described rear end face step (8) is 0.1mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111317.9U CN205330978U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521111317.9U CN205330978U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330978U true CN205330978U (en) | 2016-06-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521111317.9U Active CN205330978U (en) | 2015-12-28 | 2015-12-28 | Single -stage water circulation vacuum pump impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330978U (en) |
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2015
- 2015-12-28 CN CN201521111317.9U patent/CN205330978U/en active Active
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