CN109058128A - A kind of novel micro- lift revolution scraping blade pump performance test device - Google Patents
A kind of novel micro- lift revolution scraping blade pump performance test device Download PDFInfo
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- CN109058128A CN109058128A CN201811263226.5A CN201811263226A CN109058128A CN 109058128 A CN109058128 A CN 109058128A CN 201811263226 A CN201811263226 A CN 201811263226A CN 109058128 A CN109058128 A CN 109058128A
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- 238000007790 scraping Methods 0.000 title claims abstract description 28
- 238000011056 performance test Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 151
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 5
- 239000013013 elastic material Substances 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241000251468 Actinopterygii Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of novel micro- lift revolution scraping blade pump performance test device, belong to hydraulic machinery equipmentfrog clothing technical field, by water compensating valve in structure, water supply pipe, intake overflow chamber, water inlet overflow plate, intake chamber, wheel hub, blade, wheel rim, effluent trough, it is discharged overflow plate, it is discharged overflow chamber, effluent collection pipe connects composition with electromagnetic flowmeter, effectively the performance for micro- lift revolution scraping blade pump in low lift operating condition can be tested, and verify the accuracy of design theory and calculation method, finally obtain the safety under 0~2 m lift, stablize, the new pump-type of efficient operation, the axial-flow pump operational efficiency for solving traditional low lift operating condition middle and low lift is low, unit is unstable, energy waste, the defects of runner hydraulic loss is big, have great importance to pump performance when improving the operation of extremely low lift operating condition.
Description
Technical field
The invention belongs to hydraulic machinery equipmentfrog clothing technical fields, are related to a kind of pump performance test device, particularly relate to
A kind of novel micro- lift revolution scraping blade pump performance test device.
Background technique
In China, water lifting machinery just has it from ancient times, our ancestors just create the work for water lift at the beginning of Christian era
Tool, wherein it is most widely used, history is longest surely belongs to waterwheel.The mankind begin to using waterwheel water lift between the Eastern Han Dynasty year, existing away from the present
More than 1800 years history.Waterwheel is driven by wind-force, waterpower, storage power or manpower, in the 1960s, China River Network
Once a large amount of windmill operates.Windmill is the waterwheel with wind drive, the waterwheel of the waterwheel, hydro powered that pull there are also ox power
And manually driven waterwheel etc., these waterwheels are that the development of agricultural irrigation is made that Historic Contributions.With industrial technology
Development, waterwheel is gradually replaced water pump.
Water pump be it is a kind of conversion, energy-delivering machinery.Engine drives pump operation, and the mechanical energy of engine passes through water
Pump is converted to the kinetic energy and potential energy of water, that is, the energy transmission water supply of engine, reaches water lift and increases the mesh of water pressure
's.Thus, water pump is also a kind of water lifting machinery.Since China reforms and opens up to the outside world, the manufacture of water pump, which produces, to be rapidly developed.Water pump is wide
It is general to be applied to agricultural irrigation and draining, it is agricultural production and disaster reduction and prevention service；It is also widely used for industrial enterprise and cities and towns is built
If being industrial production, city-building and flood control and disaster reduction and water environment Engineering Service.On the one hand, pumping plant is to ensure
The stable development of the security of the lives and property and national economy of the people is made that significant contribution, on the other hand, with economic skill
The development of art and the raising of living standards of the people to pumping plant but also have new and higher requirement not only.
In recent years, as the exacerbation of Urban Waterlogging task and the masses are generally to the care of water environmental problems, to extremely low
The demand of lift pumping plant becomes higher and higher.Such as: the proposed new Meng He in industry-boundary's board key water control project pumping plant, row
The minimum net lift of water condition is 0 m；Qianjiang City of Hubei Province always new secondary pump station the minimum lift of operating condition be 0.36 m.If only
From the point of view of both operating conditions, existing pump-type is all difficult to meet the requirements.In order to meet the application of Practical Project, at this stage
Generally take two ways: first, the axial-flow pump (rated lift of pump is at 2~3 meters) compared with low lift is selected, extremely by blade adjustments
Smaller laying angle；Second, the same axial-flow pump selected compared with low lift increases impeller diameter and reduces revolution speed.Both modes
Although can run reluctantly, can all a series of problems be generated: the flow of unit time can be made to reduce using first way, be
Meet traffic requirement and would have to increasing pump runing time, and pump operation operating condition substantial deviation design conditions at this time, efficiency
It is low, unit is unstable, cause serious energy waste；It then needs to increase impeller diameter using second method, accordingly
Disengaging sink size must be increased, thus cause sharply increasing for construction investment, and this time slot hydraulic loss institute accounting
Great, operational efficiency is equally very low, in addition, in order to adjust revolving speed, it is necessary to install expensive frequency conversion equipment.Both methods
Obviously it does not comply with that pumping plant is safe and stable, efficient service requirement, causes great energy waste, be not able to satisfy energy conservation and subtract
The requirement of row.In addition, traditional pump station is due to revolving speed height, pump pressure is low, causes great injury to fish.Therefore, more next
More domestic and foreign scholars start to expand the research range to pump lift, design range of lift in 0~2 meter of new pump-type, subtract
Few destruction of the pumping plant to ecological environment, the pump installation performance improved under extremely low operation lift has a very important significance, but mesh
Before lack one kind to micro- lift pump performance test device, be unfavorable for the research and development of micro- lifting pump.
Summary of the invention
The purpose of the invention is to operation effect occur for the axial-flow pump selected in current low lift operating condition compared with low lift
Rate is low, unit is unstable, energy waste, slot hydraulic loss than it is great the defects of, need to research and develop micro- lift revolution scraping blade pump, but mesh
It is preceding still to lack a kind of device to the revolution scraping blade pump performance test of micro- lift, propose a kind of novel micro- lift revolution scraping blade pump performance
Experimental rig can solve above-mentioned the deficiencies in the prior art, and the research and development to novel micro- lift revolution scraping blade pump improves extremely low
Pump performance when lift operating condition is run, has great importance.
The technical scheme is that a kind of novel micro- lift turns round scraping blade pump performance test device, including rack；It is special
Sign is: the rack is equipped with motor, is connected with torquemeter on the output shaft of the motor, the torquemeter passes through shaft coupling
Device is connected with the axis in rolling bearing, and the axial end of the axis is equipped with the impeller being made of wheel hub, blade and wheel rim, the leaf
Be connected with intake chamber on the left of wheel, the left end of the intake chamber is equipped with water inlet overflow chamber, the water inlet overflow chamber with it is described into
The junction of sink is equipped with water inlet overflow plate, and the top of the intake chamber is equipped with water supply pipe, and the water supply pipe is equipped with water compensating valve,
Be connected with effluent trough on the right side of the impeller, the right end of the effluent trough is equipped with water outlet overflow chamber, the water outlet overflow chamber and
The junction of effluent trough is equipped with water outlet overflow plate, is connected with effluent collection pipe, the water outlet below the water outlet overflow chamber
Collecting pipe is equipped with electromagnetic flowmeter.
The impeller is roller frame, and impeller is made of wheel hub, blade and wheel rim, and impeller rotates to be forward direction, water counterclockwise
It can directly be contacted with air, there are free surface, when operation will not generate negative pressure, and cavitation will not occur.
The blade is inclined straight panel-form, is concave form in influent side blade, be easy to flow automatically water inlet；Work as impeller
When rotation to water outlet side, then become protruding shape, is easy to be discharged and aqueous reflux can be prevented.
The intake chamber and effluent trough be it is horizontally disposed, intake chamber be lower than effluent trough.
The water inlet overflow plate is identical as water outlet overflow plate height, equal into and out of the flow rate of water flow of sink to guarantee, thus
Ignore flow velocity to the interference effect of test device.
The wheel hub, water inlet overflow plate, water outlet overflow plate determine the height of the water-head of intake chamber and effluent trough, that is, raise
Journey H；Wheel hub is bigger, and the water-head of intake chamber and effluent trough also becomes larger therewith, and overflow Board position is equipped with gate slot, and overflow plate is placed
In gate slot, overflow plate alterable height realizes the adjusting of pump lift by the adjusting of overflow plate height.
The impeller falls into the center that intake chamber and effluent trough is arranged in, and to increase the contact area of impeller and water flow, makes
Its water lift amount is bigger, more efficient, intake chamber, width 1mm longer than impeller axial width of effluent trough or so.
The shaft coupling is made of elastic material, passes through elasticity between motor and torquemeter, between torquemeter and impeller
The shaft coupling of material connects.
The water that the water supply pipe provides is greater than water lift amount when impeller is run, and extra water passes through overflow plate overflow test
System simulates stable water inlet water level when practical pumping station operation with this.
The intake chamber, effluent trough length be all larger than the diameter of five times of impellers, with stationary flow, and intake chamber and go out
The water flow of sink is same direction, avoids water flow because of hydraulic loss caused by turning to.
The invention has the benefit that the novel micro- lift of one kind provided by the invention turns round scraping blade pump performance test device,
By water compensating valve, water supply pipe, water inlet overflow chamber, water inlet overflow plate, intake chamber, wheel hub, blade, wheel rim, effluent trough, water outlet in structure
Overflow plate, water outlet overflow chamber, effluent collection pipe connect composition with electromagnetic flowmeter, can be effectively to for micro- in low lift operating condition
The performance of lift revolution scraping blade pump is tested, and verifies the accuracy of design theory and calculation method, is finally obtained 0~2
Safe and stable, efficient operation new pump-type under m lift solves the axial-flow pump operation effect of traditional low lift operating condition middle and low lift
The defects of rate is low, unit is unstable, energy waste, big runner hydraulic loss, to the pump improved when extremely low lift operating condition is run
Can have great importance.
Detailed description of the invention
Fig. 1 is the overall structure diagram of apparatus of the present invention.
Fig. 2 is impeller driving device structural schematic diagram in the present invention.
In figure: water compensating valve 1, water supply pipe 2, water inlet overflow chamber 3, water inlet overflow plate 4, intake chamber 5, wheel hub 6, blade 7, wheel rim
8, effluent trough 9, water outlet overflow plate 10, water outlet overflow chamber 11, effluent collection pipe 12, electromagnetic flowmeter 13, impeller 14, sealing ring
15, rolling bearing 16, shaft coupling 17, torquemeter 18, motor 19.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in Figs. 1-2, a kind of novel micro- lift turns round scraping blade pump performance test device, and rack is equipped with motor 19, motor 19
Output shaft on be connected with torquemeter 18, torquemeter 18 is connected by shaft coupling 17 with the axis in rolling bearing 16, axis
Axial end is equipped with the impeller 14 being made of wheel hub 6, blade 7 and wheel rim 8, and the left side of impeller 14 is connected with intake chamber 5, intake chamber
5 left end is equipped with overflow plate 4 of intaking equipped with water inlet overflow chamber 3, water inlet overflow chamber 3 and the junction of intake chamber 5, intake chamber 5
Top is equipped with water supply pipe 2, and water supply pipe 2 is equipped with water compensating valve 1, and the right side of impeller 14 is connected with effluent trough 9, the right side of effluent trough 9
End is equipped with water outlet overflow chamber 11, and the junction for being discharged overflow chamber 11 and effluent trough 9 is equipped with water outlet overflow plate 10, is discharged overflow chamber 11
Lower section be connected with effluent collection pipe 12, effluent collection pipe 12 is equipped with electromagnetic flowmeter 13.
As shown in Figs. 1-2, a kind of novel micro- lift turns round scraping blade pump performance test device, and impeller 14 is roller frame, leaf
Wheel 14 is made of wheel hub 6, blade 7 and wheel rim 8, and impeller 14 rotates to be forward direction counterclockwise, and water can be contacted directly with air, be existed
Free surface, when operation, will not generate negative pressure, and cavitation will not occur；Blade 7 is inclined straight panel-form, in water inlet lateral lobe
Piece is concave form, and be easy to flow automatically water inlet；When impeller is rotated to water outlet side, then become protruding shape, is easy to be discharged and can be with
Prevent aqueous reflux；Intake chamber 5 and effluent trough 9 be it is horizontally disposed, intake chamber 5 be lower than effluent trough 9；Water inlet overflow plate 4 and water outlet
10 height of overflow plate is identical, equal into and out of the flow rate of water flow of sink to guarantee, to ignore flow velocity to the interference shadow of test device
It rings；Wheel hub 6, water inlet overflow plate 4, water outlet overflow plate 10 determine the height of the water-head of intake chamber 5 and effluent trough 9, i.e. lift
H；Wheel hub 6 is bigger, and the water-head of intake chamber 5 and effluent trough 9 also becomes larger therewith, and overflow Board position is equipped with gate slot, overflow plate peace
It is placed in gate slot, overflow plate alterable height, by the adjusting of overflow plate height, realizes the adjusting of pump lift；Impeller 6, which is fallen into, to be set
It sets at the center of intake chamber 5 and effluent trough 9, to increase the contact area of impeller 6 Yu water flow, keeps its water lift amount bigger, efficiency is more
Height, intake chamber 5, the width of effluent trough 9 are 1mm longer than 6 axial width of impeller or so；Shaft coupling 17 is made of elastic material, motor
It is connected by the shaft coupling of elastic material between 19 and torquemeter 18, between torquemeter 18 and impeller 6；What water supply pipe 2 provided
Water is greater than water lift amount when impeller is run, and extra water passes through overflow plate overflow test system, simulates practical pumping plant with this
Stable water inlet water level when operation；Intake chamber 5, effluent trough 9 length be all larger than the diameter of five times of impellers 6, with stationary flow,
And the water flow of intake chamber 5 and effluent trough 9 is same direction, avoids water flow because of hydraulic loss caused by turning to.
As shown in Figs. 1-2, a kind of installation requirement of novel micro- lift revolution scraping blade pump performance test device is as follows:
(1) impeller size is determined according to water requirement and lift, selects suitable wheel hub ratio, tip diameter should be more straight than the outer rim of blade
Big 0.5mm of diameter or so, to reduce frictional resistance and make leakage loss in the reasonable scope；
(2) blade is welded on wheel hub；
(3) impeller is fallen into slot, it is reasonable to fall into depth, that is, is avoided that excessive excavation, and can guarantee enough depth of immersion；
(4) sealing is carried out in the position of impeller shaft；
(5) dimensional parameters of conversion impeller are carried out referring to Froude number criterion；
(6) revolving speed and the number of blade that impeller is adjusted according to design requirement, in this programme by taking 8 blades as an example；
(7) water inlet pipe of test macro provides the flow bigger than impeller water lift amount, to meet the stable state of intake chamber, import
Overflow plate keeps overflow situation；
(8) test macro import overflow plate is consistent with outlet overflows plate height, to eliminate influence of the water flow dynamic energy to test；
(9) pass through shaft coupling elastic connection impeller and torquemeter and torquemeter and motor；
(10) diameter of outflow tube is formulated, overflow had not only been able to satisfy and has flowed completely out but also cannot be mixed into air, to guarantee that Electromagnetic Flow measures
Amount is accurate；
(11) axial width of impeller, groove width 1mm longer than impeller axial width or so, impeller are determined according to specific traffic requirement
It is mounted on groove center.
As shown in Figs. 1-2, a kind of working principle of novel micro- lift revolution scraping blade pump performance test device is as follows: impeller is
The core component of the invention patent is mainly made of wheel hub, blade and wheel rim.Impeller is roll form, and rotation is positive counterclockwise
To.Unlike conventional pump form, " novel micro- lift revolution scraping blade pump " only has part wheel rim, and therefore, water and air can be with
It directly contacts, there are free surface, when operation will not generate negative pressure, and cavitation will not occur.Wheel rim influent side is relative to water outlet
Side wants low, and intake chamber and effluent trough are horizontally disposed.The overflow plate of same height is set at into and out of sink, to guarantee water-in and water-out
The flow rate of water flow of slot is equal, to ignore flow velocity to the interference effect of test device.The wheel hub of impeller outer dimension and impeller ratio
Determine the water lift amount of " novel micro- lift revolution scraping blade pump ", i.e. flow, when outer dimension is identical, wheel hub than smaller, pump
Water lift amount is bigger.Wheel hub and overflow plate determine the height of the water-head of intake chamber and effluent trough, i.e. lift H, and wheel hub is bigger, into
The water-head of sink and effluent trough can also become larger, and cooperation adjustment is raised into and out of the overflow plate height on sink, adjustable pump
Journey.When impeller rotates, hub positions are constant, can prevent aqueous reflux.When impeller rotates, the water between two blades is pushed to out
Sink makes water outlet side water overflow enter water outlet overflow chamber；Influent side water level reduces, and due to gravity, influent side water level can be mended
To height same as water inlet overflow plate.Blade choosing multiple form.It is explained by taking oblique form as an example.Blade is placed as
Inclined straight panel-form is concave form in influent side blade, and be easy to flow automatically water inlet；When impeller is rotated to water outlet side, then
Become protruding shape, be easy to be discharged and aqueous reflux can be prevented.Impeller location is fallen into slot, can increase connecing for impeller and water flow
Contacting surface product, keeps its water lift amount bigger, more efficient.Impeller provides lasting, stable power by motor, among motor and impeller
Equipped with torquemeter, to measure motor to the input power P of impeller.Motor and torquemeter and torquemeter and impeller pass through elasticity
The shaft coupling of material connects.The water supply pipe of test device can provide endlessly water flow, and water is greater than when impeller is run
Water lift amount, extra water pass through overflow plate overflow test system, simulate stable water inlet water when practical pumping station operation with this
Position.Gate slot is arranged in overflow Board position, overflow plate alterable height, overflow plate is placed in gate slot, adjusts water level with this.Out
Water in sink, which flows through, enters water outlet overflow chamber after overflow plate overflows, and enters effluent collection pipe, and electromagnetism is housed in outlet pipe
Flowmeter measures water flow, and the flow measured is the practical water lift amount Q of Waterwheel-type pump.Water-in and water-out slot length should all be big
In five times of impeller diameters, with stationary flow, and the water flow of intake chamber and effluent trough is same direction, avoids water flow because turning to
Caused by hydraulic loss.Since impeller is drum-type rotation, water enters impeller, and only seldom one due to gravity gravity flow
Part wheel rim, in this way can be to avoid the damage to fish.
Claims (10)
1. a kind of novel micro- lift turns round scraping blade pump performance test device, including rack；It is characterized by: the rack is equipped with
Motor (19) is connected with torquemeter (18) on the output shaft of the motor (19), and the torquemeter (18) passes through shaft coupling
(17) it is connected with the axis in rolling bearing (16), the axial end of the axis is equipped with by wheel hub (6), blade (7) and wheel rim (8) structure
At impeller (14), be connected with intake chamber (5) on the left of the impeller (14), the left end of the intake chamber (5) is equipped with water inlet
Overflow chamber (3), water inlet overflow chamber (3) and the junction of the intake chamber (5) are equipped with water inlet overflow plate (4), the water inlet
The top of slot (5) is equipped with water supply pipe (2), and the water supply pipe (2) is equipped with water compensating valve (1), and the right side of the impeller (14) connects
Equipped with effluent trough (9), the right end of the effluent trough (9) is equipped with water outlet overflow chamber (11), the water outlet overflow chamber (11) and water outlet
The junction of slot (9) is equipped with water outlet overflow plate (10), is connected with effluent collection pipe below the water outlet overflow chamber (11)
(12), the effluent collection pipe (12) is equipped with electromagnetic flowmeter (13).
2. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Impeller (14) is roller frame, and impeller (14) is made of wheel hub (6), blade (7) and wheel rim (8), and impeller (14) rotates counterclockwise
For forward direction, water can be contacted directly with air, and there are free surface, when operation will not generate negative pressure, and cavitation will not occur.
3. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Blade (7) is inclined straight panel-form, is concave form in influent side blade, be easy to flow automatically water inlet；When impeller is rotated to out
When water side, then become protruding shape, is easy to be discharged and aqueous reflux can be prevented.
4. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Intake chamber (5) and effluent trough (9) be it is horizontally disposed, intake chamber (5) be lower than effluent trough (9).
5. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Intaking, overflow plate (4) are identical as water outlet overflow plate (10) height, and the flow rate of water flow to guarantee water-in and water-out runner is equal, to neglect
Slightly interference effect of the flow velocity to test device.
6. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Wheel hub (6), water inlet overflow plate (4) are discharged the height that overflow plate (10) determine the water-head of intake chamber (5) and effluent trough (9),
That is lift H；Wheel hub (6) is bigger, and the water-head of intake chamber (5) and effluent trough (9) also becomes larger therewith, and overflow Board position is equipped with gate
Slot, overflow plate are placed in gate slot, overflow plate alterable height, by the adjusting of overflow plate height, realize the adjusting of pump lift.
7. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Impeller (6), which falls into setting, to be made at the center of intake chamber (5) and effluent trough (9) with increasing the contact area of impeller (6) and water flow
Its water lift amount is bigger, more efficient, and intake chamber (5), the width of effluent trough (9) are 1mm longer than impeller (6) axial width or so.
8. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
Shaft coupling (17) is made of elastic material, leads between motor (19) and torquemeter (18), between torquemeter (18) and impeller (6)
Cross the shaft coupling connection of elastic material.
9. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: described
The water that water supply pipe (2) provides is greater than water lift amount when impeller is run, and extra water passes through overflow plate overflow test system, with this
To simulate stable water inlet water level when practical pumping station operation.
10. the novel micro- lift of one kind according to claim 1 turns round scraping blade pump performance test device, it is characterised in that: institute
State intake chamber (5), the length of effluent trough (9) is all larger than the diameters of five times of impellers (6), with stationary flow, and intake chamber (5) and
The water flow of effluent trough (9) is same direction, avoids water flow because of hydraulic loss caused by turning to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811263226.5A CN109058128B (en) | 2018-10-28 | 2018-10-28 | Performance test device for micro-lift rotary scraping blade pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811263226.5A CN109058128B (en) | 2018-10-28 | 2018-10-28 | Performance test device for micro-lift rotary scraping blade pump |
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| Publication Number | Publication Date |
|---|---|
| CN109058128A true CN109058128A (en) | 2018-12-21 |
| CN109058128B CN109058128B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811263226.5A Active CN109058128B (en) | 2018-10-28 | 2018-10-28 | Performance test device for micro-lift rotary scraping blade pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707636A (en) * | 2019-03-14 | 2019-05-03 | 扬州大学 | A kind of novel inlet distortions flow field axial-flow pump experimental provision |
| CN111828342A (en) * | 2020-07-20 | 2020-10-27 | 扬州大学 | Two-way pipeline submersible pump device easy to disassemble and assemble |
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| CN109707636A (en) * | 2019-03-14 | 2019-05-03 | 扬州大学 | A kind of novel inlet distortions flow field axial-flow pump experimental provision |
| CN109707636B (en) * | 2019-03-14 | 2023-10-24 | 扬州大学 | Novel inlet distortion flow field axial flow pump experiment device |
| CN111828342A (en) * | 2020-07-20 | 2020-10-27 | 扬州大学 | Two-way pipeline submersible pump device easy to disassemble and assemble |
| CN111828342B (en) * | 2020-07-20 | 2022-01-18 | 扬州大学 | Two-way pipeline submersible pump device easy to disassemble and assemble |
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| CN109058128B (en) | 2023-12-22 |
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