CN108825521A - A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil - Google Patents
A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil Download PDFInfo
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- CN108825521A CN108825521A CN201810443062.8A CN201810443062A CN108825521A CN 108825521 A CN108825521 A CN 108825521A CN 201810443062 A CN201810443062 A CN 201810443062A CN 108825521 A CN108825521 A CN 108825521A
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- oil pump
- tested
- fuel tank
- testing stand
- flow field
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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)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil, including tested oil pump and fuel tank, pipeline between tank bottoms and the suction inlet of tested oil pump is equipped with motor regulated valve and filtering air separator, and the pipeline between top of oil-tank and tested oil pump outlet is equipped with motor regulated valve and oval gear flowmeter；Tested oil pump connects variable-frequency motor through torque rotational speed meters by shaft coupling；Cooling coil and electric heater are equipped in fuel tank, the side wall of fuel tank is equipped with temperature transmitter, is respectively provided with a temperature transmitter and a pressure transmitter on the suction inlet and outlet pipeline of tested oil pump；Torque rotational speed meters, oval gear flowmeter and all temperature transmitters and pressure transmitter are all connected with PLC controller, and the output signal of PLC controller is sent to motor regulated valve, electric heater and variable-frequency motor；Testing stand further includes tested model pump, measures flow field by running simultaneously PIV speed measuring module.Present invention measurement is accurate.
Description
Technical field
The present invention relates to pump testing fields, are related to a kind of for being centrifuged viscous oil pump external characteristics and interior flow field performance test
Testing stand.
Background technique
Centrifugation viscous oil pump is widely used in petroleum, chemical industry, and the design for being centrifuged viscous oil pump at present is mainly according to property
Energy conversion curve, by the performance parameter convert of centrifugal pump when being working media using certain viscosity liquid at using clear water as working media
Then corresponding performance parameter is carried out the design of centrifugation viscous oil pump by water medium, due to the waterpower for centrifugation viscous oil pump
Can test is also to organize and implement on test installation of pump, and the reliability that this design concept directly results in test result is beaten greatly
Discount.
The experimental provision that the country pumps power performance test to centrifugation viscous oil rarely has research, and there is following for water pump experimental bench
It is insufficient：
(1) test medium is easily mixed into air, influences test result；
(2) experiment parameter is manually adjusted, experimental precision is reduced；
(3) flow field distribution can not obtain.
Summary of the invention
It is an object of the invention to be directed to above-mentioned the problems of the prior art, provide a kind of for being centrifuged viscous oil pump external characteristics
And the testing stand of interior flow field performance test, easy to operate, metering, regulation are accurate, green and safe and reliable.
To achieve the goals above, the technical solution adopted by the present invention is：Including tested oil pump and fuel tank, the bottom of fuel tank
Between the suction inlet of tested oil pump by test piping connection, and the developmental tube road be equipped with the first motor regulated valve and
Air separator is filtered, by test piping connection between the top of fuel tank and the outlet of tested oil pump, and the developmental tube is on the road
Equipped with the second motor regulated valve and oval gear flowmeter；The tested oil pump is connected by shaft coupling through torque rotational speed meters
Variable-frequency motor；The cooling coil and electric heater for controlling oil temperature are equipped in the fuel tank, the side wall of fuel tank, which is equipped with, to be used
In the temperature transmitter of measurement oil temperature, it is tested on the suction inlet and outlet institute joint test pipeline of oil pump and is each provided with a temperature
Spend transmitter and a pressure transmitter；Torque rotational speed meters, oval gear flowmeter and all temperature transmitters
The signal input part of PLC controller is all connected with pressure transmitter, the output signal of PLC controller is sent to the first motorized adjustment
Valve, the second motor regulated valve, electric heater and variable-frequency motor；Testing stand further includes tested model pump, is tested model pump
It is made according to the structure of tested oil pump of transparent material, internal to be filled with trace particle, laser generates certain frequency
Pulsed light simultaneously forms sheet laser from the tested model pump of side trend of purchasing by prism, and CCD camera is each from front acquisition trace particle
When the image inscribed, speed letter is calculated according to the trace particle change in displacement under specified time interval.
Developmental tube road between the tank bottoms and tested oil pump suction inlet is provided with manual ball valve.
Developmental tube road positioned at tank bottoms liquid outlet is provided with the first metal hose for compensation conduit thermal walking；
It is provided with positioned at the developmental tube road of tested oil pump suction inlet for host vibration to be isolated and absorbs the second metal of sedimentation deformation
Hose.
The fuel tank internal is provided with for guaranteeing that oil liquid goes out to flow the flow steadying grid of stable and uniform.
The tank bottoms are provided with the sampling blow valve for sampling and old oil is vented.
The temperature transmitter of tested oil pump suction inlet is located at the straight of 2 times away from suction inlet calibers with pressure transmitter measurement section
Pipeline section upstream, the temperature transmitter of tested oil pump outlet and pressure transmitter measurement section are located at 2 times away from outlet calibers
Straight pipe downstream.The test pipeline uses the 20# seamless steel pipe of DN60, and type of attachment is using welding or flanged joint.Institute
The test oil product in tested model pump is stated using technical white oil, trace particle selects hollow glass ball, is tested the inside of model pump
Painted black.
It is provided at the top of the fuel tank for filtering the air cleaner for entering impurity in fuel tank internal air.
Compared with prior art, the present invention has following beneficial effect：When tested oil pump stable operation, elliptic gear
Flow signal is passed to PLC controller by flowmeter, is tested oil pump suction inlet and the pressure of outlet, temperature transmitter are right respectively
The inlet and outlet pressure and temperature of tested oil pump are acquired, and signal is passed to PLC controller, by PLC controller to the
One electric control valve and the second electric control valve are adjusted, and are tested pressure, the temperature transmitter of oil pump suction inlet and outlet
Be transmitted to PLC controller signal occur corresponding change, be achieved in the acquisition of temperature, pressure and flow signal in pipeline with
Control.When tested oil pump stable operation：Torque rotational speed meters convert electric signal for torque tachometer value and pass to PLC controller,
To complete the acquisition of torque rotary speed information；Frequency signal is passed to variable-frequency motor by PLC controller, and variable-frequency motor again will be current
Frequency signal feeds back to PLC controller, is acquired by PLC controller to its frequency signal, realizes the control to its frequency；Electricity
Heater receives the electric heating signal of PLC controller, starts to heat the oil product in fuel tank, will be warm by temperature transmitter
Angle value is converted to electric signal and passes to PLC controller, to realize the control of oil temperature；Tested oil pump is replaced with into tested model
Pump starts laser and CCD camera, realizes the real-time monitoring being distributed to tested oil pump flow field.The present invention can not only to from
The external characteristics of heart viscous oil pump is tested for the property, and can carry out PIV survey to the VELOCITY DISTRIBUTION of centrifugation viscous oil pump interior flow field
Examination, and the reliability of CFD is verified, and then instruct the Hydraulic Design and the optimization of centrifugation viscous oil pump, the testing stand operation side
Just, it measures, regulate and control accurately, anti-interference ability is strong, and operating process is green and safe and reliable.
Detailed description of the invention
Overall structure diagram Fig. 1 of the invention；
Fig. 2 PIV velocity field measurement schematic illustration of the present invention；
Control system block diagram Fig. 3 of the invention；
In attached drawing：1- fuel tank；2- cooling coil；3- flow steadying grid；4- electric heater；5- samples blow valve；The first metal of 6-
Hose；7- manual ball valve；The first motor regulated valve of 8-；9- filters air separator；The second metal hose of 10-；11- is tested oil pump；
12- torque revolving speed；13- variable-frequency motor；14- oval gear flowmeter；The second motor regulated valve of 15-；16- air cleaner；
17- tests pipeline；18- laser；19-CCD camera；20- is tested model pump；21- trace particle；22- prism；23- sheet laser.
Specific embodiment
Present invention will be described in further detail below with reference to the accompanying drawings.
Referring to Fig. 1-2, the present invention includes tested oil pump 11 and fuel tank 1 in structure.The bottom of fuel tank 1 and tested oil pump 11
Suction inlet between by test pipeline 17 connect, the test pipeline 17 be equipped with manual ball valve 7, the first motor regulated valve 8
With filtering air separator 9；It is connected between the top of fuel tank 1 and the outlet of tested oil pump 11 by test pipeline 17, the developmental tube
Road 17 is equipped with the second motor regulated valve 15 and oval gear flowmeter 14.Tested oil pump 11 is by shaft coupling through torque revolving speed
Instrument 12 connects variable-frequency motor 13, and cooling coil 2 and electric heater 4 for controlling oil temperature, the side wall of fuel tank 1 are equipped in fuel tank 1
It is equipped with the temperature transmitter for measuring oil temperature, is tested each on the suction inlet and outlet institute joint test pipeline 17 of oil pump 11
It is provided with a temperature transmitter and a pressure transmitter, is tested the temperature transmitter and pressure transmitter of 11 suction inlet of oil pump
Measurement section is located at the straight pipe upstream of 2 times away from suction inlet calibers, and the temperature transmitter and pressure for being tested 11 outlet of oil pump become
The straight pipe downstream for sending device measurement section to be located at 2 times away from outlet calibers.Torque rotational speed meters 12, oval gear flowmeter 14 and
All temperature transmitters and pressure transmitter are all connected with the signal input part of PLC controller, the output signal hair of PLC controller
It send to the first motor regulated valve 8, the second motor regulated valve 15, electric heater 4 and variable-frequency motor 13.Centrifugation of the invention
Viscous oil Test-bed for pump further includes tested model pump 20, is tested model pump 20 according to the structure of tested oil pump 11 and uses transparent material system
At internal to be filled with trace particle 21, laser 18 generates the pulsed light of certain frequency and forms sheet laser by prism 22
23 invest tested model pump 20, the image that CCD camera 19 is inscribed when each from front acquisition trace particle 21, according to spy from side
Speed letter is calculated in 21 change in displacement of trace particle under being spaced of fixing time.
Filtering air separator 9 of the invention is used to separate the gas that is contained in oil product of exclusion, and can filter and contain in oil product
Impurity, to guarantee the intake performance of tested oil pump 11 and the measuring accuracy of oval gear flowmeter 14.Test pipeline 17 is adopted
With the 20# seamless steel pipe of DN60, type of attachment is additionally provided with glass tube liquid level on 1 side wall of fuel tank using welding or flanged joint
Meter, to facilitate the liquid level read in fuel tank.The test oil product being tested in model pump 20 in PIV velocity field measurement module uses
Technical white oil, trace particle 21 select hollow glass ball, have preferable flowing followability.CCD camera 19 is placed in and sheet laser
The vertical position of 23 illuminated areas is tested the inside painted black of model pump 20, including the reflective strong non-survey of blade and spiral case
Region is tried, trace particle 21 is showed with a certain size bright spot under dark background, and the signal-to-noise ratio of image can be improved.
The test pipeline 17 of 1 bottom liquid outlet of fuel tank is equipped with the first metal hose 6 for compensation conduit thermal walking, is tested oil pump 11
The test pipeline 17 of suction inlet is equipped with for host vibration to be isolated and absorbs the second metal hose 10 of sedimentation deformation.Fuel tank 1
Top be provided with for filter enter 1 inner air of fuel tank in impurity air cleaner 16.Fuel tank 1, which is internally provided with, to be used for
Guarantee that oil liquid goes out to flow the flow steadying grid 3 of stable and uniform, 1 bottom of fuel tank is provided with the sampling blow valve 5 for sampling and old oil is vented.
Referring to Fig. 3, when tested 11 stable operation of oil pump, flow signal is passed to PLC and controlled by oval gear flowmeter 14
Device processed, tested 11 suction inlet of oil pump and the pressure of outlet, temperature transmitter start respectively to the inlet and outlet pressure of tested oil pump 11
Power and temperature are acquired, and signal is passed to PLC controller, at this point, by PLC controller to the first electric control valve 8
It is adjusted with the valve position of the second electric control valve 15, passes the pressure of tested oil pump suction inlet and outlet, temperature transmitter
Corresponding change occurs for the signal for being delivered to PLC controller, is achieved in the acquisition and control to temperature, pressure and flow signal in pipeline
System.
When tested 11 stable operation of oil pump, torque rotational speed meters 12 convert electric signal for torque tachometer value and pass to PLC
Controller, to complete the acquisition of torque rotary speed information.When tested 11 stable operation of oil pump, PLC controller is frequency signal
Variable-frequency motor 13 is passed to, current frequency signal is fed back to PLC controller again by variable-frequency motor 13, by PLC controller to its frequency
Rate signal is acquired, to realize the control to its frequency.Electric heater 4 receives the electric heating signal of PLC controller, starts
Oil product in fuel tank 1 is heated, temperature value is converted to by electric signal by temperature transmitter and passes to PLC controller, from
And realize the control of oil temperature.Tested oil pump 11 is replaced with into tested model pump 20, when tested 20 stable operation of model pump, starting
Laser and CCD camera, PIV speed measuring module synchronous operation, by the computer of adopted data transmission to console.
Claims (9)
1. a kind of for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, it is characterised in that：Including tested
Oil pump (11) and fuel tank (1), between the bottom of fuel tank (1) and the suction inlet of tested oil pump (11) even by test pipeline (17)
Connect, and the test pipeline (17) be equipped with the first motor regulated valve (8) and filtering air separator (9), the top of fuel tank (1) and
By test pipeline (17) connection between the outlet of tested oil pump (11), and the test pipeline (17) is electronic equipped with second
Control valve (15) and oval gear flowmeter (14)；The tested oil pump (11) is by shaft coupling through torque rotational speed meters (12)
It connects variable-frequency motor (13)；The cooling coil (2) and electric heater (4) for controlling oil temperature, oil are equipped in the fuel tank (1)
The side wall of case (1) is equipped with the temperature transmitter for measuring oil temperature, and the suction inlet of tested oil pump (11) is connect with outlet
A temperature transmitter and a pressure transmitter are each provided in test pipeline (17)；It is the torque rotational speed meters (12), ellipse
Knucle-gear flowmeter (14) and all temperature transmitters and pressure transmitter are all connected with the signal input part of PLC controller,
The output signal of PLC controller is sent to the first motor regulated valve (8), the second motor regulated valve (15), electric heater (4)
And variable-frequency motor (13)；
Testing stand further includes tested model pump (20), is tested model pump (20) according to the structure of tested oil pump (11) and uses transparent material
Material is made, internal to be filled with trace particle (21), and laser (18) generates the pulsed light of certain frequency and passes through prism (22)
It forms sheet laser (23) to invest tested model pump (20) from side, CCD camera (19) is each from front acquisition trace particle (21)
When the image inscribed, speed letter is calculated according to trace particle (21) change in displacement under specified time interval.
2. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：Manual ball valve is provided on test pipeline (17) between fuel tank (1) bottom and tested oil pump (11) suction inlet
(7)。
3. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：The first metal for compensation conduit thermal walking is provided on the test pipeline (17) of fuel tank (1) bottom liquid outlet
Hose (6)；It is provided on the test pipeline (17) of tested oil pump (11) suction inlet and sinks for host vibration to be isolated and absorbs
The second metal hose (10) that demotion is moved.
4. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：The fuel tank (1) is internally provided with for guaranteeing that oil liquid goes out to flow the flow steadying grid (3) of stable and uniform.
5. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：Described fuel tank (1) bottom is provided with the sampling blow valve (5) for sampling and old oil is vented.
6. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：The temperature transmitter of tested oil pump (11) suction inlet and pressure transmitter measurement section are located at 2 times away from suction inlet calibers
Straight pipe upstream, the temperature transmitter of tested oil pump (11) outlet and pressure transmitter measurement section are located at away from 2 times of outlet
The straight pipe downstream of caliber.
7. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：The test pipeline (17) uses the 20# seamless steel pipe of DN60, and type of attachment is using welding or flanged joint.
8. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：Test oil product in the tested model pump (20) uses technical white oil, and trace particle (21) selects hollow glass ball, quilt
Survey the inside painted black of model pump (20).
9. according to claim 1 for being centrifuged the testing stand of viscous oil pump external characteristics and interior flow field performance test, feature
It is：It is provided at the top of the fuel tank (1) for filtering the air cleaner for entering impurity in fuel tank (1) inner air
(16)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443062.8A CN108825521A (en) | 2018-05-10 | 2018-05-10 | A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443062.8A CN108825521A (en) | 2018-05-10 | 2018-05-10 | A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108825521A true CN108825521A (en) | 2018-11-16 |
Family
ID=64147730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810443062.8A Withdrawn CN108825521A (en) | 2018-05-10 | 2018-05-10 | A kind of testing stand pumping external characteristics and interior flow field performance test for being centrifuged viscous oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108825521A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005620A (en) * | 2019-05-18 | 2019-07-12 | 东北石油大学 | A kind of electric submersible pump test platform for comprehensive performance and its test method |
| CN110566797A (en) * | 2019-10-21 | 2019-12-13 | 德阳东汽电站机械制造有限公司 | Lubricating oil station performance test system and method |
| CN112797005A (en) * | 2021-04-07 | 2021-05-14 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
| CN114738297A (en) * | 2022-05-17 | 2022-07-12 | 中国计量大学 | Novel cavitation test system for intelligent open-loop centrifugal pump |
-
2018
- 2018-05-10 CN CN201810443062.8A patent/CN108825521A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110005620A (en) * | 2019-05-18 | 2019-07-12 | 东北石油大学 | A kind of electric submersible pump test platform for comprehensive performance and its test method |
| CN110566797A (en) * | 2019-10-21 | 2019-12-13 | 德阳东汽电站机械制造有限公司 | Lubricating oil station performance test system and method |
| CN112797005A (en) * | 2021-04-07 | 2021-05-14 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
| CN112797005B (en) * | 2021-04-07 | 2021-09-03 | 中国电建集团上海能源装备有限公司 | Method and device for measuring flow field in closed cavity of high-curve impeller of three-dimensional centrifugal pump |
| CN114738297A (en) * | 2022-05-17 | 2022-07-12 | 中国计量大学 | Novel cavitation test system for intelligent open-loop centrifugal pump |
| CN114738297B (en) * | 2022-05-17 | 2024-08-20 | 中国计量大学 | Cavitation testing system of intelligent open-loop centrifugal pump |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181116 |