CN110486261A - Air-compressor set mixing system and method based on multipoint pressure trajectory predictions - Google Patents
Air-compressor set mixing system and method based on multipoint pressure trajectory predictions Download PDFInfo
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- CN110486261A CN110486261A CN201910647662.0A CN201910647662A CN110486261A CN 110486261 A CN110486261 A CN 110486261A CN 201910647662 A CN201910647662 A CN 201910647662A CN 110486261 A CN110486261 A CN 110486261A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
Abstract
The present invention provides a kind of air-compressor set mixing system and method based on multipoint pressure trajectory predictions, which includes: data tracing acquisition unit, is tracked acquisition for the pressure data to the multiple production ends of factory；Data analyze storage unit, for calculating pressure-activated slope, the time of terminal pressure rapid drawdown caused by storage Different Slope changes according to collected data；Trend simulation unit, for carrying out the emulation of track trend by regressive prediction model；Unit is prejudged, the time of the result anticipation terminal pressure rapid drawdown next time for emulating according to trend；Execution unit carries out boost in pressure to air compressor machine for sending control instruction according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out；Recovery unit, for after the stability of flow of end by the pressure recovery of air compressor machine to original pressure.The present invention solves the waste generated for being greater than the high voltage supply needed, solves high voltage supply overload impact caused by equipment of the manufacturing side.
Description
Technical field
The present invention relates to air-compressor set blending technology field, in particular to a kind of pneumatics based on multipoint pressure trajectory predictions
Unit dispatch system and method.
Background technique
The use of present industrial enterprise compressed air is mostly in polynary application state, and demand is extremely unstable, pipe network
It is excessively complicated, due to enterprise's increase of production capacity or the promotion of technique etc. in development process, so that compressed air system instantly
With the mismatch of initial designs, cause to buffer unreasonable allocation, the pipe network increase for lacking system design is too long, therefore pipe network end
With the dynamic control terminal for being difficult to be timely fed back to air compressor machine of wave.
In addition, the demand control point of the automation control of existing all air compressor machine groups is generally all in pipe network starting point
(on the surge tank after drying machine) remotely controls and the basic functions such as automatic start-stop although having air-compressor set, in certain journey
The output pressure fluctuation of station has been stabilized on degree, but can not have been solved since pipe network is too long, and terminal pressure generates rapid with flowed fluctuation
The problem of drop, therefore have to improve pressure in control terminal and export, cause very big waste.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of, and the air-compressor set based on multipoint pressure trajectory predictions deploys system
System and method meet the requirement of industrial enterprise's continuous production, equipment to pressure stability, and solving traditional robot control system(RCS) control needs
Ask a selection is unreasonable, the machine output response time too long the problem of.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of air compressor machine based on multipoint pressure trajectory predictions
Group mixing system, comprising:
Data tracing acquisition unit is tracked acquisition for the pressure data to the multiple production ends of factory；
Data analyze storage unit, and for calculating pressure-activated slope according to collected data, storage Different Slope becomes
The time of the amplitude of terminal pressure rapid drawdown and rapid drawdown caused by changing；
Trend simulation unit passes through regressive prediction model for the time according to each terminal pressure rapid drawdown being recorded
Carry out the emulation of track trend；
Unit is prejudged, the time of the result anticipation terminal pressure rapid drawdown next time for emulating according to trend；
Execution unit is controlled for being sent according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out
It instructs and carries out boost in pressure to air compressor machine；
Recovery unit, for after the stability of flow of end by the pressure recovery of air compressor machine to original pressure.
Preferably, the data tracing acquisition unit includes pressure transmitter, and the pressure transmitter is used for more to factory
The pressure data of a production end is tracked acquisition.
Preferably, data analysis storage unit, the trend simulation unit and the anticipation unit pass through industrial personal computer,
PLC controller and configuration software realize respective function, wherein the industrial personal computer is analyzed and stored for data, the PLC control
Whole control of the device for system, the configuration software shows for human-computer interaction, alarm indication, report generation, historical data
Inquiry.
Preferably, the execution unit and the recovery unit include that air compressor machine specially controls module, and the air compressor machine specially controls mould
Block is used to carry the program code for carrying out communication interaction with air compressor machine, and sends control instruction and controlled to air compressor machine.
Preferably, the air-compressor set mixing system further includes isolated location, and the isolated location includes 485 isolators,
It is operated normally for protecting the air compressor machine specially to control the communication between module and the air compressor machine.
Preferably, the air-compressor set mixing system further includes man-machine interaction unit, and the man-machine interaction unit includes touching
Touch screen.
The embodiment of the present invention also provides a kind of air-compressor set concocting method based on multipoint pressure trajectory predictions, including with
Lower step:
The pressure data of production ends multiple to factory is tracked acquisition；
Pressure-activated slope is calculated according to collected data, terminal pressure rapid drawdown caused by storage Different Slope changes
The time of amplitude and rapid drawdown；
According to the time for each terminal pressure rapid drawdown being recorded, trend emulation in track is carried out by regressive prediction model；
According to the time of the result anticipation terminal pressure rapid drawdown next time of trend emulation；
Control instruction is sent to air compressor machine according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out
Carry out boost in pressure；
By the pressure recovery of air compressor machine to original pressure after the stability of flow of end.
Preferably, the pressure data of the production end multiple to factory is tracked the time of acquisition as at least one
Month.
Preferably, the content that the pressure data of the production end multiple to factory is tracked acquisition includes: that acquisition is empty
Press pressure at expulsion and operation power, main pipe pressure, end workshop pressure and flow.
Preferably, it is to send out for 20 minutes in advance that the preset in advance time, which sends control instruction and carries out boost in pressure to air compressor machine,
Control instruction is sent to carry out boost in pressure to air compressor machine.
The advantageous effects of the above technical solutions of the present invention are as follows:
The present invention improves system intelligent degree compared with traditional air compressor machine group control system, implants pre- measurement of power for the first time
Can, dynamic demand control is provided, matching supply is carried out by the demand changed constantly, solves and is supplied for being greater than the high pressure needed
To the waste of generation, solves high voltage supply overload impact caused by equipment of the manufacturing side.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of air-compressor set mixing system provided in an embodiment of the present invention；
Fig. 2 is the workflow schematic diagram of air-compressor set mixing system provided in an embodiment of the present invention；
Fig. 3 is the flow chart of air-compressor set concocting method provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The embodiment of the present invention provides firstly a kind of air-compressor set mixing system based on multipoint pressure trajectory predictions, such as
Shown in Fig. 1, the air-compressor set mixing system includes:
Data tracing acquisition unit 101 is tracked acquisition for the pressure data to the multiple production ends of factory；
Data analyze storage unit 102, for calculating pressure-activated slope according to collected data, store Different Slope
The time of the amplitude of terminal pressure rapid drawdown and rapid drawdown caused by changing；
Trend simulation unit 103 passes through regression forecasting mould for the time according to each terminal pressure rapid drawdown being recorded
Type carries out the emulation of track trend；
Unit 104 is prejudged, the time of the result anticipation terminal pressure rapid drawdown next time for emulating according to trend；
Execution unit 105, for being sent according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out
Control instruction carries out boost in pressure to air compressor machine；
Recovery unit 106, for after the stability of flow of end by the pressure recovery of air compressor machine to original pressure.
Fig. 2 is the workflow schematic diagram of air-compressor set mixing system provided in an embodiment of the present invention, and detailed description are as follows:
" end " represents workshop；" P " represents the corresponding pressure of workshop；" while starting grouping ", which represents the same time, pressure
Fluctuate and meet the air compressor machine of the corresponding unit slope in unit slope library.
Workflow is as follows: the pressure data P of production ends multiple to factory is tracked acquisition；Pass through associated change rate
Model calculates pressure-activated slope, then store terminal pressure rapid drawdown caused by Different Slope changes amplitude and rapid drawdown when
Between；By recording the time of each terminal pressure rapid drawdown, trend emulation in track is carried out by regressive prediction model；Become according to emulation
The time of gesture anticipation pressure drop next time, preset in advance time (such as: 20 minutes) send control instruction and carry out to air compressor machine
Boost in pressure；After when end, flow tends towards stability, by the pressure of the pressure recovery script of air compressor machine.
The present invention improves system intelligent degree compared with traditional air compressor machine group control system, implants pre- measurement of power for the first time
Can, dynamic demand control is provided, matching supply is carried out by the demand changed constantly, solves and is supplied for being greater than the high pressure needed
To the waste of generation, solves high voltage supply overload impact caused by equipment of the manufacturing side.
Preferably, data tracing acquisition unit 101 includes pressure transmitter, and pressure transmitter is used for the multiple productions of factory
The pressure data of end is tracked acquisition.
Preferably, data analysis storage unit 102, trend simulation unit 103 and anticipation unit 104 pass through industrial personal computer, PLC
Controller and configuration software realize respective function, wherein industrial personal computer is analyzed and stored for data, and PLC controller is used for system
Whole control, configuration software shows for human-computer interaction, alarm indication, report generation, the inquiry of historical data.
Preferably, execution unit 105 and recovery unit 106 include that air compressor machine specially controls module, and air compressor machine is specially controlled module and is used for
The program code for carrying out communication interaction with air compressor machine is carried, and sends control instruction and is controlled to air compressor machine.
Preferably, air-compressor set mixing system further includes isolated location, and isolated location includes 485 isolators, for protecting
Air compressor machine specially controls the normal operation of the communication between module and air compressor machine.
Preferably, air-compressor set mixing system further includes man-machine interaction unit, and man-machine interaction unit includes touch screen.It touches
Screen can be realized data show, alarm indication, the functions such as instruction input.
Correspondingly, the embodiments of the present invention also provide a kind of air-compressor set allotment sides based on multipoint pressure trajectory predictions
Method, as shown in figure 3, the air-compressor set concocting method the following steps are included:
The pressure data of production ends multiple to factory is tracked acquisition；
Pressure-activated slope is calculated according to collected data, terminal pressure rapid drawdown caused by storage Different Slope changes
The time of amplitude and rapid drawdown；
According to the time for each terminal pressure rapid drawdown being recorded, trend emulation in track is carried out by regressive prediction model；
According to the time of the result anticipation terminal pressure rapid drawdown next time of trend emulation；
Control instruction is sent to air compressor machine according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out
Carry out boost in pressure；
By the pressure recovery of air compressor machine to original pressure after the stability of flow of end.
For the Stability and veracity for meeting forecast function, the pressure data of production ends multiple to factory, which is tracked, to be adopted
The time of collection is at least one moon.
Preferably, it includes: acquisition air compressor machine that the pressure data of production ends multiple to factory, which is tracked the content of acquisition,
Pressure at expulsion and operation power, main pipe pressure, end workshop pressure and flow.Big data is carried out by acquisition above data
Analysis is formed comprising basic slope and the database of rapid drawdown time and corresponding mathematical model, is provided sufficiently for subsequent prediction
Data support.
Preferably, it is the control of transmission in 20 minutes in advance that the preset in advance time, which sends control instruction and carries out boost in pressure to air compressor machine,
System instruction carries out boost in pressure to air compressor machine.
The specific example that the present invention applies is as follows: the unit quantity of pneumatics station is more than or equal to 2, and air compressor machine has substantially
RS485/RS232/PROFIBUS-DP communication modes, be mainly directed towards the group control of centrifuge.Acquire certain plant produced workshop
Pressure descending slope and fluctuation when the biggish several pressure spots of entrance fluctuating range, sequence and determining each workshop flowed fluctuation
Time when generation does trend prediction by the timing node rule of pressure oscillation, the preset in advance time send control instruction to
Air compressor machine adjusts pressure parameter, to guarantee the stabilization of each Workshop Production pressure.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of air-compressor set mixing system based on multipoint pressure trajectory predictions characterized by comprising:
Data tracing acquisition unit is tracked acquisition for the pressure data to the multiple production ends of factory；
Data analyze storage unit, and for calculating pressure-activated slope according to collected data, storage Different Slope variation is led
The amplitude of the terminal pressure rapid drawdown of cause and the time of rapid drawdown；
Trend simulation unit is carried out for the time according to each terminal pressure rapid drawdown being recorded by regressive prediction model
The emulation of track trend；
Unit is prejudged, the time of the result anticipation terminal pressure rapid drawdown next time for emulating according to trend；
Execution unit, for sending control instruction according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out
Boost in pressure is carried out to air compressor machine；
Recovery unit, for after the stability of flow of end by the pressure recovery of air compressor machine to original pressure.
2. air-compressor set mixing system according to claim 1, which is characterized in that the data tracing acquisition unit includes
Pressure transmitter, pressure data of the pressure transmitter for production ends multiple to factory are tracked acquisition.
3. air-compressor set mixing system according to claim 1, which is characterized in that the data analyze storage unit, institute
It states trend simulation unit and the anticipation unit and respective function is realized by industrial personal computer, PLC controller and configuration software, wherein
The industrial personal computer is analyzed and is stored for data, and whole control of the PLC controller for system, the configuration software is used for
Human-computer interaction shows, alarm indication, report generation, the inquiry of historical data.
4. air-compressor set mixing system according to claim 1, which is characterized in that the execution unit and the recovery are single
Member includes that air compressor machine specially controls module, and the air compressor machine specially controls module for carrying the program generation for carrying out communication interaction with air compressor machine
Code, and send control instruction and controlled to air compressor machine.
5. air-compressor set mixing system according to claim 4, which is characterized in that the air-compressor set mixing system also wraps
Include isolated location, the isolated location includes 485 isolators, for protect the air compressor machine specially control module and the air compressor machine it
Between communication operate normally.
6. air-compressor set mixing system according to any one of claims 1-5, which is characterized in that the air-compressor set tune
Match system further includes man-machine interaction unit, and the man-machine interaction unit includes touch screen.
7. a kind of air-compressor set concocting method based on multipoint pressure trajectory predictions, which comprises the following steps:
The pressure data of production ends multiple to factory is tracked acquisition；
Pressure-activated slope, the amplitude of terminal pressure rapid drawdown caused by storage Different Slope changes are calculated according to collected data
With the time of rapid drawdown；
According to the time for each terminal pressure rapid drawdown being recorded, trend emulation in track is carried out by regressive prediction model；
According to the time of the result anticipation terminal pressure rapid drawdown next time of trend emulation；
Control instruction is sent according to the time advance preset time of the rapid drawdown of terminal pressure next time prejudged out to carry out to air compressor machine
Boost in pressure；
By the pressure recovery of air compressor machine to original pressure after the stability of flow of end.
8. air-compressor set concocting method according to claim 7, which is characterized in that the production ends multiple to factory
The time that pressure data is tracked acquisition is at least one moon.
9. air-compressor set concocting method according to claim 7, which is characterized in that the production ends multiple to factory
The content that pressure data is tracked acquisition includes: acquisition air compressor machine pressure at expulsion and operation power, main pipe pressure, end production
Workshop pressure and flow.
10. air-compressor set concocting method according to claim 7, which is characterized in that the preset in advance time sends control
It is to shift to an earlier date 20 minutes transmission control instructions to carry out boost in pressure to air compressor machine that system instruction, which carries out boost in pressure to air compressor machine,.
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