CN1967259A - Examining device for circulation of propeller pump exit - Google Patents
Examining device for circulation of propeller pump exit Download PDFInfo
- Publication number
- CN1967259A CN1967259A CN 200510095451 CN200510095451A CN1967259A CN 1967259 A CN1967259 A CN 1967259A CN 200510095451 CN200510095451 CN 200510095451 CN 200510095451 A CN200510095451 A CN 200510095451A CN 1967259 A CN1967259 A CN 1967259A
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- pump
- blade
- circulation
- outlet
- ring volume
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Abstract
The invention is an axial flow pump export ring volume detection device. The invention relates to hydraulic machinery technology field, especially to the axial flow pump, and the guide vane mix flow pump outlet flow detection technology field. The invention includes shell, model pump, and pump outlet guide vane, and the pump axis of the model pump is set in the inlet side, and the outlet side of the model pump having ring volume detector. Since the invention changes the pump axis extended from the pump inlet, and installs the ring volume detector on the outlet side of the pump outlet guide vane, it can easily calculate the pump outlet fluid ring volume according to the leaf length and angle velocity of the ring volume detector, and solve the detection problem of the pump outlet fluid average export volume. It accurately obtains the ring volume data, so it has more comprehensive evaluation of pump performance, and thus, great help to improve the pump structure design. In addition, it has instructive meaning to the future ring fluid volume application. The invention has novel and clever design, good usage effect, and is initiative in domestic and international.
Description
Technical field
The present invention relates to the hydraulic technical field, relate in particular to axial flow pump, guide vane mixed flow pump rate of discharge detection technique field.
Background technology
Axial flow pump and guide vane mixed flow pump pass through the high speed rotating of impeller with the NE BY ENERGY TRANSFER feedwater flow, simultaneously current are rotated.For the kinetic energy that will flow out blade wheel chamber's current rotation changes pressure energy into, after water pump vane, be provided with stator.Because the imperfection of stator design, the current that flow out stator in fact often also have many residue circular rectors.The hydraulic performance of test axial flow pump and guide vane mixed flow pump all is the method by model test, but the present average axial flow velocity that the model test method of testing that adopts can only test water pump discharge current, and can not detect the tangential flow velocity (circular rector) of exit of pump current, the result causes not having circular rector and thinking that the energy of taking water pump out of owing to the rotation of current is to be lost in the pump by mistake owing to knowing to export current.
Summary of the invention
The purpose of this invention is to provide a kind of quantitative test problem that solves axial flow pump and guide vane mixed flow pump outlet current circular rector, obtain the device of the test data of axial flow pump outlet fluid circular rector.
The present invention includes housing, model water pump, pump mouth of a river stator, the pump shaft of model water pump is located at influent side, and the water outlet side of model water pump is provided with the circular rector detecting device.
The circular rector detecting device comprises and is fixedly installed on the bracing or strutting arrangement that pumps oral-lateral, establishes an axle concentric with pump shaft on the bracing or strutting arrangement, uniform blade on the axle, and the blade blade face is straight shape, corresponding circular rector detector location place establishes photoelectric sensor on the housing.
The axial line of blade blade face and axle at grade.
Blade is at least 2.
The length of blade is 0.6～0.8 times of housing radius.
The present invention is owing to change pump shaft from pump inlet into stretch out and be provided with the circular rector detecting device pumping water stator exit, so can calculate the circular rector of pump discharge fluid according to the length of blade and the turn meter of circular rector detecting device easily, solve detection problem to the average circular rector of pump discharge fluid.Accurately obtained the circular rector data, thereby estimated pump performance more all sidedly, the improvement of pump configuration design has been had great help.Has inspired significance for the application of fluid circular rector from now in addition.The present invention novel ingenious, result of use good, is domestic and international initiative.
Description of drawings
Accompanying drawing is a structural representation of the present invention
1 is housing among the figure, the 2nd, and pump shaft, the 3rd, the model water pump, the 4th, pump mouth of a river stator, the 5th, axle, the 6th, photoelectric sensor, the 7th, blade, the 8th, bracing or strutting arrangement, the 9th, water inlet, the 10th, water delivering orifice.
Embodiment
The present invention is stretched out pump shaft (2) by water inlet (9), thereby convenient at water delivering orifice (10) stator (4) arranged outside circular rector detecting device.At the flow inlet place 90 degree bend pipes are set, have through hole on bend pipe, pump shaft (2) stretches out housing (1) by this through hole, and pump shaft (2) is axial and radial seal when stretching out the bend pipe through hole.
The circular rector detecting device is arranged on the right side of the water delivering orifice stator (4) of model water pump (3), it comprises the bracing or strutting arrangement (8) that is fixed on housing (1) inner chamber, this bracing or strutting arrangement (8) to reduce the resistance of convection cell, guarantees to detect the accuracy of data in that to satisfy under the situation of intensity size as far as possible little.One axle (5) free to rotate is set on this bracing or strutting arrangement (8), this axle (5) axial line is concentric with pump (2) axial line, this axle (5) cantilever, at axle (5) the radial uniform blade of right-hand member (7), blade (7) is straight blade face, the axial line of the blade face of blade (7) and pump (3) and axle (5) at grade, present embodiment adopts 4 blades.When being equiped with blade (7), the rotation circulation of fluid can promote straight blade (7) and drive axle (5) rotation at fluid.The length present embodiment of blade (7) is got 0.75 times of housing (1) radius.
The horizontal level of the blade (7) of corresponding circular rector detecting device, on housing (1) wall, establish a photoelectric sensor (6), photoelectric sensor (6) is the product that generally uses on the market, photoelectric sensor (6) can be read the rotation reading of blade (7), the axial flow velocity of exit of pump current can not produce turning effort power to the axle (5) of installing straight blades (7), but tangential flow velocity will promote blade (7) and drive this axle (5) rotation, in conjunction with the angular velocity of the length of straight blades and detected straight blades just can the calculating pump outlet the peaceful equal circular rector of average tangentially flow velocity.
By scaler, but visual rationing ground reflects the size of the tangential flow velocity of current.
Claims (5)
1, a kind of examining device for circulation of propeller pump exit comprises housing, model water pump, pumps mouth of a river stator, it is characterized in that the pump shaft of model water pump is located at influent side, and the water outlet side of model water pump is provided with the circular rector detecting device.
2, examining device for circulation of propeller pump exit according to claim 1, it is characterized in that, described circular rector detecting device comprises and is fixedly installed on the bracing or strutting arrangement that pumps oral-lateral, establish an axle concentric on the bracing or strutting arrangement with pump shaft, uniform blade on the axle, the blade blade face is straight shape, and corresponding circular rector detector location place establishes photoelectric sensor on the housing.
3, examining device for circulation of propeller pump exit according to claim 1 is characterized in that, the axial line of described blade blade face and axle at grade.
4, examining device for circulation of propeller pump exit according to claim 1 is characterized in that, described blade is at least 2.
5, examining device for circulation of propeller pump exit according to claim 1 is characterized in that, the length of described blade is 0.6～0.8 times of housing radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095451 CN1967259A (en) | 2005-11-16 | 2005-11-16 | Examining device for circulation of propeller pump exit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510095451 CN1967259A (en) | 2005-11-16 | 2005-11-16 | Examining device for circulation of propeller pump exit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1967259A true CN1967259A (en) | 2007-05-23 |
Family
ID=38076126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510095451 Pending CN1967259A (en) | 2005-11-16 | 2005-11-16 | Examining device for circulation of propeller pump exit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1967259A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330710A (en) * | 2011-09-30 | 2012-01-25 | 扬州大学 | Guide vane exit circulation homogenizer for axial-flow pump and guide vane type mixed-flow pump model |
| CN110008617A (en) * | 2019-04-15 | 2019-07-12 | 中国农业大学 | Inclined axial flow guide vane domain circular rector dough softening evaluation method |
| CN110486296A (en) * | 2019-09-20 | 2019-11-22 | 扬州大学 | Axial pump vane body rectification effect test device and its test method |
| CN115263739A (en) * | 2022-06-24 | 2022-11-01 | 襄阳新金开泵业有限公司 | Flow detection device of water pump |
-
2005
- 2005-11-16 CN CN 200510095451 patent/CN1967259A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330710A (en) * | 2011-09-30 | 2012-01-25 | 扬州大学 | Guide vane exit circulation homogenizer for axial-flow pump and guide vane type mixed-flow pump model |
| CN110008617A (en) * | 2019-04-15 | 2019-07-12 | 中国农业大学 | Inclined axial flow guide vane domain circular rector dough softening evaluation method |
| CN110486296A (en) * | 2019-09-20 | 2019-11-22 | 扬州大学 | Axial pump vane body rectification effect test device and its test method |
| CN115263739A (en) * | 2022-06-24 | 2022-11-01 | 襄阳新金开泵业有限公司 | Flow detection device of water pump |
| CN115263739B (en) * | 2022-06-24 | 2023-10-31 | 襄阳新金开泵业有限公司 | Flow detection device of water pump |
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