CN102748322A - Double-vane axial flow pump - Google Patents
Double-vane axial flow pump Download PDFInfo
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- CN102748322A CN102748322A CN2012102290599A CN201210229059A CN102748322A CN 102748322 A CN102748322 A CN 102748322A CN 2012102290599 A CN2012102290599 A CN 2012102290599A CN 201210229059 A CN201210229059 A CN 201210229059A CN 102748322 A CN102748322 A CN 102748322A
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- impeller
- double
- flow pump
- hub
- vane
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- 230000000694 effects Effects 0.000 claims abstract description 4
- 230000001154 acute effect Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000007598 dipping method Methods 0.000 abstract 1
- 230000001066 destructive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003169 placental effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The invention relates to a double-vane axial flow pump mainly comprising a bell mouth (1), a spiral impeller (2), a spatial guide vane (3), a shaft (4), a mechanical seal (5), a bearing (6), a submersible motor (7) and the like. The double-vane axial flow pump is characterized in that an inlet side (8) of an impeller of the double-vane axial flow pump extends toward, the spiral impeller (2) adopts a cone-shaped hub, and the highest position of the hub is arranged at the root of the inlet side (8) of the impeller, so that water flow forms a hub low pressure region at the highest position; and the acute angle part of an inlet guides sundries to be close to axis under the action of suction of a hub low pressure region, the sundries are caused to advance along the axis by utilizing spiral effect, and finally the sundries flow out from an outlet side (11) of the impeller. When the impeller is designed, manners of increasing the diameter of the inlet of impeller, increasing the ratio of an inlet hub to an outlet hub, expanding the width of a vane outlet, reducing the external diameter of the impeller and increasing the mounting angle of the vane outlet are adopted, and experiments show that a steep dipping head curve and a smoothly declining power curve are obtained.
Description
Technical field
The present invention relates to pump, particularly the double-leaf axial-flow pump.
Background technique
At present, what known axial-flow pump impeller adopted is airfoil fan, and its blade axial dimension is short, and the number of blade is generally more than 3, has that flow is big, a compact structure, characteristics such as in light weight.But, adopt axial-flow pump requirement to fed sheet of a media in practical application of this impeller relatively stricter, can only be used to carry clear water or slight sewage, as use the blowdown pumping plant; Water quality is complicated, and silt is many, and foreign material are many, causes impeller blade to twine foreign material easily; Stop up, cause outer end mechanical seal distortion, cause mechanical seal to be lost efficacy, the motor water inlet; Pump is frequently reported to the police, and increases maintenance frequency, even burns out motor.And hump appears in its flow lift curve and power curve easily, and impact loss is bigger.
Summary of the invention
For addressing the above problem, the present invention adopts the helical runner of double helix blade, stops up for preventing solid matter; Make it successfully to flow out, the helical blade of two distortions is arranged in the impeller, on the cone hub body, prolong vertically by suction port; The radius of blade increases gradually, forms spiral flow channel.For increasing the flow of pump, improve conveyance capacity, effectively Control Shaft power and elimination hump; When impeller design, taked increase impeller inlet diameter; Increase impeller and import and export hub ratio, enlarge the blade exit width, dwindle impeller outer diameter; Increase modes such as blade exit laying angle, the head curve peace that has obtained to fall suddenly through test slides the power curve of falling.Thereby realized the positive feed of double-leaf axial-flow pump, do not had characteristics such as obstruction, no winding, non-destructive, no overload.
Realize that above-mentioned purpose adopted technological scheme be:
The double-leaf axial-flow pump no longer adopts common aerofoil vane, but adopts helical runner, and the number of blade is 2.Its helical runner is made up of spiral protrusive type blade and cone hub.Blade stands on core wheel cone surface with certain inclination angle and spacing, and its structure shape is the similar spiral propulsion device that end radii is little, root radius is big of inlet part, and exit portion is an axial flow.The symmetrical impeller of this kind unique forms makes the work of double-leaf axial-flow pump the time both not have current and impacts, again can positive feed, and have the fabulous performance of passing through, and possess characteristics such as big flow, no winding, non-destructive, no overload, improved its reliability of operation greatly.
The invention has the beneficial effects as follows: evaded axial-flow pump to strict this shortcoming of medium, enlarged the using scope of axial-flow pump, improved operational reliability, when being used for sewage treatment, need not carry out pretreatment, saved the great amount of investment and the energy sewage.
The present invention is on probation through the user, and reaction effect is good.
Description of drawings
Fig. 1 is the double-leaf axial-flow pump structural drawing of one embodiment of the present of invention.
Fig. 2 is the schematic representation of the double-leaf axial-flow pump impeller of one embodiment of the present of invention.
Fig. 3 is same embodiment's a double-leaf axial-flow pump performance curve.
Among the figure: 1. horn mouth, 2. helical runner, 3. spatial guide blade, 4. spool, 5. mechanical seal, 6. bearing, 7. submersible motor, 8. impeller inlet limit, 9. helical blade, 10. impeller outlet limit.
Embodiment
Fig. 1 and Fig. 2 have confirmed this embodiment's double-leaf axial-flow pump shape jointly.It mainly is made up of horn mouth (1), helical runner (2), spatial guide blade (3), axle (4), mechanical seal (5), bearing (6) and submersible motor (7) etc.; Described double-leaf axial-flow pump has adopted the double helix blade; Protract in impeller inlet limit (8), helical runner (2) adopts cone hub, and the wheel hub highest point is positioned at impeller inlet limit (8) root; Thereby make current form a wheel hub low pressure area herein; The acute angle portion of import utilizes screw action to make it to advance along axis near the axle center of under the effect of wheel hub low pressure area suction foreign material being led again, flows out from impeller outlet limit (10) at last.Thereby realized the positive feed of double-leaf axial-flow pump, do not had obstruction, do not have characteristics such as winding, non-destructive, avoided pump in use to receive this difficult problem that limits of place and Environmental Conditions.
Fig. 3 is a double-leaf axial flow water-test performance of the pump curve; Can know that by figure the double-leaf axial-flow pump has the head curve that falls suddenly, the scope of efficiently distinguishing is wide; And the power curve of smooth decline arranged; The reasonable design method that the double-leaf axial-flow pump is described is feasible, has effectively controlled the air horsepower of pump, does not have the overload phenomenon in the operation overall process.
Be specifying that embodiment was done with Fig. 1, Fig. 2 and Fig. 3 more than, but the present invention is not limited to the foregoing description, also comprises other embodiments or variation in the concept of the present invention for the present invention.For example, can enlarge the cornerite of helical blade; The tapering of wheel hub also can be along with needs are regulated.
Claims (2)
1. double-leaf axial-flow pump, it mainly is made up of horn mouth (1), helical runner (2), spatial guide blade (3), axle (4), mechanical seal (5), bearing (6) and submersible motor (7) etc.; It is characterized in that: described double-leaf axial-flow pump impeller inlet side (8) is protracted; Helical runner (2) adopts cone hub; The wheel hub highest point is positioned at impeller inlet limit (8) root, thereby makes current form a wheel hub low pressure area herein, and the acute angle portion of import is near the axle center of under the effect of wheel hub low pressure area suction foreign material being led; Utilize screw action to make it to advance again, flow out from impeller outlet limit (10) at last along axis.
2. double-leaf axial-flow pump according to claim 1 is characterized in that: the number of blade of helical runner (2) is 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290599A CN102748322A (en) | 2012-06-29 | 2012-06-29 | Double-vane axial flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102290599A CN102748322A (en) | 2012-06-29 | 2012-06-29 | Double-vane axial flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102748322A true CN102748322A (en) | 2012-10-24 |
Family
ID=47028744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102290599A Pending CN102748322A (en) | 2012-06-29 | 2012-06-29 | Double-vane axial flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102748322A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936225A (en) * | 1973-05-09 | 1976-02-03 | Itt Industries, Inc. | Diagonal impeller pump |
| JPH0615873B2 (en) * | 1988-12-26 | 1994-03-02 | 株式会社帝国電機製作所 | Axial thrust reduction device for axial flow pump |
| CN1120128A (en) * | 1993-12-24 | 1996-04-10 | 太平洋机工株式会社 | Blade used in fluid mechanism and fluid mechanism using same |
| CN1218148A (en) * | 1997-11-18 | 1999-06-02 | Itt制造企业公司 | Pump impeller |
| JP2003083284A (en) * | 2001-09-12 | 2003-03-19 | Mitsubishi Heavy Ind Ltd | Pump |
| CN101278127A (en) * | 2004-09-17 | 2008-10-01 | 宾夕法尼亚州研究基金会 | Expandable impeller pump |
| CN201416567Y (en) * | 2009-05-20 | 2010-03-03 | 长沙天鹅工业泵股份有限公司 | Impeller member of mechanically-regulated vertical diagonal flow pump |
| CN101779043A (en) * | 2007-08-16 | 2010-07-14 | 弗里德科股份公司 | Pump rotor and pump comprising a pump rotor of said type |
| CN202431593U (en) * | 2011-11-03 | 2012-09-12 | 江苏国泉泵业制造有限公司 | Axial-flow pump impeller adopting spiral blades |
-
2012
- 2012-06-29 CN CN2012102290599A patent/CN102748322A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3936225A (en) * | 1973-05-09 | 1976-02-03 | Itt Industries, Inc. | Diagonal impeller pump |
| JPH0615873B2 (en) * | 1988-12-26 | 1994-03-02 | 株式会社帝国電機製作所 | Axial thrust reduction device for axial flow pump |
| CN1120128A (en) * | 1993-12-24 | 1996-04-10 | 太平洋机工株式会社 | Blade used in fluid mechanism and fluid mechanism using same |
| CN1218148A (en) * | 1997-11-18 | 1999-06-02 | Itt制造企业公司 | Pump impeller |
| JP2003083284A (en) * | 2001-09-12 | 2003-03-19 | Mitsubishi Heavy Ind Ltd | Pump |
| CN101278127A (en) * | 2004-09-17 | 2008-10-01 | 宾夕法尼亚州研究基金会 | Expandable impeller pump |
| CN101779043A (en) * | 2007-08-16 | 2010-07-14 | 弗里德科股份公司 | Pump rotor and pump comprising a pump rotor of said type |
| CN201416567Y (en) * | 2009-05-20 | 2010-03-03 | 长沙天鹅工业泵股份有限公司 | Impeller member of mechanically-regulated vertical diagonal flow pump |
| CN202431593U (en) * | 2011-11-03 | 2012-09-12 | 江苏国泉泵业制造有限公司 | Axial-flow pump impeller adopting spiral blades |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121024 |