CN108240907A - Dynamic power machine is adjusted and testing experimental system and adjusting, test method - Google Patents
Dynamic power machine is adjusted and testing experimental system and adjusting, test method Download PDFInfo
- Publication number
- CN108240907A CN108240907A CN201611213105.0A CN201611213105A CN108240907A CN 108240907 A CN108240907 A CN 108240907A CN 201611213105 A CN201611213105 A CN 201611213105A CN 108240907 A CN108240907 A CN 108240907A
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- turbine
- flow control
- connect
- control valve
- proportional flow
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
Abstract
Dynamic power machine is adjusted and testing experimental system and adjusting, test method.Mechanical transmission performance integration test is tested, and is being transmitted movement and the parameter curve in dynamic process by testing common mechanical transmission device, is being deepened the understanding and understanding to common mechanical transmission performance.At present, the dynamic power machine used adjusts to exist with test experiments and adjusts difficulty, measures the shortcomings that inaccurate.The composition of the present invention includes：Compressed air source unit（1）, the compressed air source unit and filter（2）Connection, the filter and pressure reducing valve（3）Connection, the pressure reducing valve and proportional flow control valve（4）Connection, the proportional flow control valve respectively with computer（5）, power turbine（6）Connection, the axis and generator of the power turbine（7）Connection, the generator respectively with current consuming apparatus（8）, switch（9）Connection.The present invention is adjusted for dynamic power machine and test experiments.
Description
Technical field：
The present invention relates to a kind of dynamic power machines to be adjusted and testing experimental system and adjusting, test method.
Background technology：
Mechanical transmission performance integration test is tested, experiment purpose：1. by testing common mechanical transmission device（Such as V belt translation, chain
Transmission, gear drive, worm-drive etc.）Transmit movement with dynamic process in parameter curve (rate curve, torque curve,
Transmission ratio curve, power curve and efficiency curve etc.), deepen the understanding and understanding to common mechanical transmission performance；2. pass through survey
The parameter curve of different transmission systems that examination is made of common mechanical transmission, grasps the basic demand of machine driving reasonable Arrangement；
3. recognizing the operation principle of Intelligentized mechanical transmission performance integration test experimental system by experiment, it is real to grasp area of computer aided
The new method tested, the experiment of being designed property of culture and the ability of Making Innovation Experiments.At present, the dynamic power machine used is adjusted and is surveyed
Examination experiment, which exists, to be adjusted difficulty, measures the shortcomings that inaccurate.
In the prior art mainly design calculate there are the problem of cause to mismatch between air source and running device, when being adopted
The tachometer value that the rotating speed of axis is made to reach design requirement also is difficult to when the gas output of air source opens to the maximum.
Existing equipment use turbine disassembled from other equipment utilize and the requirement of experimental bench have it is very big
Gap, and be cast iron, without visual permeability.
There is no pressure sensor and temperature sensor in existing equipment, it is impossible to the pressure of the detection working gas of real-time online
And temperature, the item data can not be transmitted to computer, so as to which on line real time control tune cannot be made to temperature and pressure parameter
It is whole.
Invention content：
The object of the present invention is to provide a kind of dynamic power machines to be adjusted and testing experimental system and adjusting, test method.
Above-mentioned purpose is realized by following technical scheme：
A kind of dynamic power machine adjusts and testing experimental system, and composition includes：Compressed air source unit, the compressed air source unit and filter
Connection, the filter are connect with pressure reducing valve, and the pressure reducing valve is connect with proportional flow control valve, the proportional flow control valve point
Do not connect with computer, power turbine, the axis of the power turbine is connect with generator, the generator respectively with power consumption
Equipment, switch connection.
The dynamic power machine adjusts and testing experimental system, pacifies between the pressure reducing valve and the proportional flow control valve
Equipped with pressure gauge, pressure sensor, temperature sensor, the pressure sensor, the temperature sensor pass through A/D respectively
Converter A is connect with the computer, and the computer is connect by D/A converter with the proportional flow control valve.
The dynamic power machine adjusts and testing experimental system, and shaft damping is equipped in the power turbine shaft and is adjusted
Device, speed probe, the speed probe are connect by A/D converter B with the computer.
A kind of dynamic power machine is adjusted and the adjusting of testing experimental system, test method, this method include：Compressed air source unit generates
Pressure air after filter, pressure reducing valve and proportional flow control valve enter power make its rotation, the axis and hair of the turbine
Motor connects, and the electric energy that the generator generates is consumed by current consuming apparatus；Secondary speed conduct described in computer acquisition
Controller adjusts the feedback information of rotating speed；The pressure and temperature letter of pipeline between the pressure reducing valve and the proportional flow control valve
Breath by pressure sensor, temperature sensor, is sent into the computer and is used for supervisory control system running state respectively；It is big to simulate
Turbine load, on the turbine wheel shaft set shaft damping adjustment device.
Advantageous effect：
1. if careful design of the invention calculates air demand when secondary speed reaches requirement of experiment and air source can reach
Air demand so that accomplish preferably to match between air source and running device so that the gas output of air source is under declared working condition with regard to energy
The rotating speed of axis is made to reach the tachometer value of design requirement well.
2. the turbine that the present invention uses is assembled using the processing of high intensity organic glass, not only intensity up to arrives
Requirement of experiment, and its transparency can make well the rotation of blade and axis that student can be good at seeing inside turbine shroud
Situation, it is all very good to experiment effect and observation of students experiment in visual observation effect.
3. the present invention is mounted with highly sensitive pressure sensor and temperature sensor in the flow channels of gas, can
With the pressure and temperature of the detection working gas of real-time online, and then the item data is transmitted to computer, so as to temperature
On line real time control adjustment is made with pressure parameter so that experiential function is more complete and abundant.
4. the present invention using shaft damping adjustment device can be as needed damping force adjust the injection of damping oil
Amount, reaches expected damping, excessive to avoid the impact force of turbine shaft, and other frameworks is caused to damage.
5. the deep enough operation principle and working characteristics for understanding dynamic power machine rotational speed regulation and control system of energy of the invention,
And grasp the affecting laws of various different control structures and control parameter to adjusting system performance.Experimental system control system part
In necessary system boundary there is enough degrees of opening, student is supplied to use up under the premise of system energy normal operation is ensured
Possible big performance space, improves Teaching Effect.
Description of the drawings：
Attached drawing 1 is the structure diagram of the present invention.
Specific embodiment：
Embodiment 1：
A kind of dynamic power machine adjusts and testing experimental system, and composition includes：Compressed air source unit 1, the compressed air source unit and filtering
Device 2 connects, and the filter is connect with pressure reducing valve 3, and the pressure reducing valve is connect with proportional flow control valve 4, the ratio stream
Amount valve is connect respectively with computer 5, power turbine 6, and the axis of the power turbine is connect with generator 7, the generator
It is connect respectively with current consuming apparatus 8, switch 9.
Embodiment 2：
According to dynamic power machine described in embodiment 1 adjusting and testing experimental system, the pressure reducing valve and the proportional flow
Pressure gauge 10, pressure sensor 11, temperature sensor 12 are installed, the pressure sensor, the temperature pass between valve
Sensor passes through A/D converter A, piece number respectively：13 connect with the computer, and the computer passes through D/A converter 14
It is connect with the proportional flow control valve.
Embodiment 3：
Dynamic power machine according to embodiment 1 or 2 adjusts and testing experimental system, is equipped with and turns in the power turbine shaft
Axis damping adjustment device 15, speed probe 16, the speed probe pass through A/D converter B, piece number：17 with it is described
Computer connects.
Embodiment 4：
A kind of dynamic power machine is adjusted and the adjusting of testing experimental system, test method, this method include：The pressure that compressed air source unit generates
Power air enters power after filter, pressure reducing valve and proportional flow control valve makes its rotation, the axis and generator of the turbine
Connection, the electric energy that the generator generates are consumed by current consuming apparatus；Secondary speed described in computer acquisition is as control
Device adjusts the feedback information of rotating speed；The pressure and temperature information point of pipeline between the pressure reducing valve and the proportional flow control valve
Not by pressure sensor, temperature sensor, it is sent into the computer and is used for supervisory control system running state；To simulate big whirlpool
Wheel load sets shaft damping adjustment device on the turbine wheel shaft.
Embodiment 5：
Above-mentioned dynamic power machine is adjusted and the adjusting of testing experimental system, test method, air machinery during the experiment exist
Under the premise of meeting performance requirement air pump scheme is used as possible, but final scheme is determined by Party B.
1st, experiment content：
（1）Compare steam turbine speed adjustment system example, recognize the corresponding component of this experimental system, by physical unit with
Regulating system related elements correspond, and understand its specific effect.
（2）Under airport logistic park operating mode（Turbine shaft damping unit disconnects）, using different control strategies, observation adjusts system
The control accuracy of system.
（3）Change turbine loads, the regulating power of observing system, the front and rear tachometer value of record regulating system work calculates
Go out the diversity factor of regulating system.
（4）The time that adjusting process before and after record control between two stabilized (steady-state) speeds of turbine is consumed provides adjusting system
The time constant and sensory characteristic of system record the rotation speed change rule during entire adjust, analyze the overshoot of regulating system
Flow characteristic.
（5）Change control strategy by changing controlling unit with controller parameter, compare the excellent of different adjustment method
It is bad, specific basis for estimation is provided with detailed performance characteristics, sums up the advantage and disadvantage of various controlling units.
（6）Larger shock loading is provided to turbine by turbine wheel shaft damping unit, tests the stability of regulating system, and
Provide the stability qualitative conclusions of different adjustment method.
2nd, experiment purpose：
（1）Enhance perceptual knowledge of the student to speed adjustment system；
（2）Deepen understanding of the student to the operation principle of speed adjustment system；
（3）Make student to different control strategies（Link）The characteristics of have further insight；
（4）With reference to course features, the simple control system of students is allowed（Link）Design method.
Embodiment 6：
Above-mentioned dynamic power machine adjusts and the adjusting of testing experimental system, test method, software development：Close system scale and function
It is required that this programme builds system rotational speed governor using Simulink, used by figure of the MATLAB exploitations for student's operation
Family interface.Operation interface can change controller architecture and controller relevant parameter and show power turbine rotating speed of target and
The system status informations such as current rotating speed, gas pressure and gas temperature.This programme pre-sets several typical control structures, such as
Open loop control mode, P controls, PI controls, PID control etc., student also can be by Simulink certainly under certain restrictive condition
Row design controller.
Claims (4)
1. a kind of dynamic power machine adjusts and testing experimental system, composition includes：Compressed air source unit, it is characterized in that：The air source
Device is connect with filter, and the filter is connect with pressure reducing valve, and the pressure reducing valve is connect with proportional flow control valve, described
Proportional flow control valve is connect respectively with computer, power turbine, and the axis of the power turbine is connect with generator, the power generation
Machine connects respectively with current consuming apparatus, switch.
2. dynamic power machine according to claim 1 adjusts and testing experimental system, it is characterized in that：The pressure reducing valve and institute
Pressure gauge, pressure sensor, temperature sensor be installed between the proportional flow control valve stated, it is the pressure sensor, described
Temperature sensor is connect respectively by A/D converter A with the computer, and the computer passes through D/A converter and institute
The proportional flow control valve connection stated.
3. dynamic power machine according to claim 1 or 2 adjusts and testing experimental system, it is characterized in that：The power whirlpool
Shaft damping adjustment device, speed probe be installed on wheel shaft, the speed probe by A/D converter B with it is described
Computer connection.
4. a kind of dynamic power machine adjusts and the adjusting of testing experimental system, test method, it is characterized in that：This method includes：Air source
The pressure air that device generates enters power after filter, pressure reducing valve and proportional flow control valve makes its rotation, the turbine
Axis connect with generator, the generator generate electric energy consumed by current consuming apparatus；Turbine described in computer acquisition
Rotating speed adjusts the feedback information of rotating speed as controller；The pressure of pipeline between the pressure reducing valve and the proportional flow control valve
With temperature information respectively by pressure sensor, temperature sensor, it is sent into the computer and is used for supervisory control system running state；
To simulate big turbine load, shaft damping adjustment device is set on the turbine wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213105.0A CN108240907A (en) | 2016-12-25 | 2016-12-25 | Dynamic power machine is adjusted and testing experimental system and adjusting, test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611213105.0A CN108240907A (en) | 2016-12-25 | 2016-12-25 | Dynamic power machine is adjusted and testing experimental system and adjusting, test method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240907A true CN108240907A (en) | 2018-07-03 |
Family
ID=62704500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611213105.0A Pending CN108240907A (en) | 2016-12-25 | 2016-12-25 | Dynamic power machine is adjusted and testing experimental system and adjusting, test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240907A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030004A (en) * | 2018-07-31 | 2018-12-18 | 大连凌海华威科技服务有限责任公司 | Turbine speed regulating system imitative experimental appliance and its method |
-
2016
- 2016-12-25 CN CN201611213105.0A patent/CN108240907A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030004A (en) * | 2018-07-31 | 2018-12-18 | 大连凌海华威科技服务有限责任公司 | Turbine speed regulating system imitative experimental appliance and its method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |
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| WD01 | Invention patent application deemed withdrawn after publication |