CN106499617A - A kind of air compressor energy-saving regulation and control method, apparatus and system - Google Patents
A kind of air compressor energy-saving regulation and control method, apparatus and system Download PDFInfo
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- CN106499617A CN106499617A CN201610971172.2A CN201610971172A CN106499617A CN 106499617 A CN106499617 A CN 106499617A CN 201610971172 A CN201610971172 A CN 201610971172A CN 106499617 A CN106499617 A CN 106499617A
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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
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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
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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Abstract
The invention discloses a kind of air compressor energy-saving regulation and control method, apparatus and system, wherein, method includes：After air compressor machine loading, the gas storage pressure of prediction volume air accumulator is obtained in real time and with the current gas consumption in gas pipe network, wherein, the air inlet of the prediction volume air accumulator is connected with the blowing mouth of the air compressor machine, and gas point is used by described being connected to gas pipe network in the gas outlet of the prediction volume air accumulator；Volume, the default plus poor and described current gas consumption of unloading pressure according to the prediction volume air accumulator; determine the discharge time after the air compressor machine unloading and downtime sum; wherein, the default plus unloading pressure difference is the difference of default unloading pressure and default on-load pressure；Discharge time and downtime after the air compressor machine unloading are arranged according to the discharge time and downtime sum, and the downtime is more than 0.The present invention improves the energy-saving effect for determining frequency air compressor machine at low cost.
Description
Technical field
The present invention relates to air compressor machine control technology field, more particularly to a kind of air compressor energy-saving regulation and control method, device and it is
System.
Background technology
In many energy for being used, compressed air is to be only second to one of popularization energy of electric power.Industry, mining industry, work
Cheng Ye, hospitality industry even agricultural has increasingly extensive purposes, especially extremely considerable in the usage amount of industry.In view of compressed air
Widely adopted by all trades and professions, on the premise of factory maximizes and automates, the use of compressed air grows with each passing day.And
While compressed air, itself is also consuming a large amount of electric energy, is using thousands of horsepower very in the dynamic fault of current industrial quarters air compressor machine
To the factory of tens thousand of horsepowers of air compressor machines, oneself is numerous, and how how reasonable employment compressed air and the electromechanical effect of pneumatics are lifted,
Become the problem that dealer pays much attention to.
For industrial use determine frequency pneumatics air compressor machine load factor not high when, a lot of people are usually through to compressed air air compressor machine
The mode of motor variable-frequency speed-regulating transformation reaches economize on electricity purpose reducing motor consumption.However, freguency control reform is with higher
The improvement of threshold, such as motor construction itself, performance and frequency threshold etc., and from economic considerations, Frequency Conversion Modification expense is relative
Higher.
Content of the invention
In view of this, the purpose of the present invention is to propose to a kind of air compressor energy-saving regulates and controls method, apparatus and system, with low cost
Ground lifts the energy-saving effect for determining frequency air compressor machine.
For achieving the above object, the present invention is adopted the following technical scheme that：
In a first aspect, a kind of air compressor energy-saving regulation and control method is embodiments provided, including：
After air compressor machine loading, the gas storage pressure of prediction volume air accumulator is obtained in real time and with currently using gas in gas pipe network
Amount, wherein, the air inlet of the prediction volume air accumulator is connected with the blowing mouth of the air compressor machine, the prediction volume air accumulator
Gas outlet gas point is used by described being connected to gas pipe network, the prediction volume air accumulator is used for buffering the air compressor machine and produces
Gas, increase air compressor machine start and stop cycle；
Volume, the default plus poor and described current gas consumption of unloading pressure according to the prediction volume air accumulator, determines institute
The discharge time after air compressor machine unloading and downtime sum is stated, wherein, the default plus unloading pressure difference is default unloading pressure
The difference of power and default on-load pressure；
When the discharge time after the air compressor machine unloading being set with shutting down according to the discharge time and downtime sum
Between, and the downtime is more than 0, to shorten the air compressor machine discharge time.
Further, the prediction volume air accumulator includes the first air accumulator and the second air accumulator, first air accumulator
It is arranged in parallel with the second air accumulator.
Further, the volume of the prediction volume air accumulator is by air compressor machine start and stop safety condition, default plus unloading pressure
Difference, air compressor machine gas production and the current gas consumption determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For
Standard atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, and B is the current gas consumption.
Further, the volume of the prediction volume air accumulator is by air compressor machine start and stop safety condition, default plus unloading pressure
Difference and air compressor machine gas production determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For
Standard atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production.
Further, after air compressor machine loading, also include：
Gas pressure in the use gas pipe network is obtained in real time；
If the gas pressure with gas pipe network is not less than preset pressure value, pressure limit warning is sent, to point out
Supervisor reduces the gas pressure in the use gas pipe network.
Further, also include：
In unit time, add up the air compressor machine start-stop time；
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, air compressor machine security alarm is sent, with
Prompting supervisor executes the operation for forbidding that the air compressor machine is shut down within the current one time again；Or,
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, in the adjust automatically current one time
Discharge time to the discharge time and downtime sum.
Second aspect, embodiments provides a kind of air compressor energy-saving regulation device, including：
Current gas consumption acquisition module, after loading, obtains the gas storage pressure of prediction volume air accumulator in real time for air compressor machine
And with the current gas consumption in gas pipe network, wherein, the gas transmission of the air inlet and the air compressor machine of the prediction volume air accumulator
Mouth connection, the gas outlet of the prediction volume air accumulator use gas point by described being connected to gas pipe network, the prediction volume storage
Gas tank is used for buffering the gas that the air compressor machine is produced, and increases the air compressor machine start and stop cycle；
Unloading downtime determining module, for the volume according to the prediction volume air accumulator, default plus unloading pressure
Difference and the current gas consumption, determine the discharge time after the air compressor machine unloading and downtime sum, wherein, described default
Plus the difference that unloading pressure difference is default unloading pressure and default on-load pressure；
Unloading downtime setup module, for arranging the air compressor machine according to the discharge time with downtime sum
Discharge time and downtime after unloading, and the downtime is more than 0, to shorten the air compressor machine discharge time.
Further, the prediction volume air accumulator includes the first air accumulator and the second air accumulator, first air accumulator
It is arranged in parallel with the second air accumulator.
Further, the volume of the prediction volume air accumulator is by air compressor machine start and stop safety condition, default plus unloading pressure
Difference, air compressor machine gas production and the current gas consumption determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For
Standard atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, and B is the current gas consumption.
Further, the volume of the prediction volume air accumulator is by air compressor machine start and stop safety condition, default plus unloading pressure
Difference and air compressor machine gas production determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For
Standard atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production.
Further, also include：
With the voltage-controlled acquisition module of gas pipe network gas, for after air compressor machine is loaded, obtaining in real time in the use gas pipe network
Gas pressure；
Pressure warning module, if being not less than preset pressure value for the gas pressure with gas pipe network, sends pressure
Power overload alarm, to point out supervisor to reduce the gas pressure in the use gas pipe network.
Further, also include：
Start-stop time accumulation module, for after air compressor machine is loaded, in unit time, adds up the air compressor machine start and stop
Number of times；
Safe early warning module, if reaching air compressor machine start-stop time preset value for the air compressor machine start-stop time, sends
Air compressor machine security alarm, to point out supervisor to execute the behaviour for forbidding that the air compressor machine is shut down within the current one time again
Make；Or,
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, in the adjust automatically current one time
Discharge time to the discharge time and downtime sum.
The third aspect, embodiments provides a kind of air compressor energy-saving regulator control system, including man-machine monitoring unit, sky
Press, prediction volume air accumulator, reservoir pressure sensor and gas flowmeter；
The man-machine monitoring unit connects the air compressor machine, the reservoir pressure sensor and the gas flow respectively
Meter, the air inlet of the prediction volume air accumulator be connecteds with the blowing mouth of the air compressor machine, described predict that volume air accumulator goes out
Gas port uses gas point by being connected to gas pipe network, and the reservoir pressure sensor is arranged on the prediction volume air accumulator,
The gas flowmeter is arranged at described with gas pipe network；
Wherein, the prediction volume air accumulator is used for buffering the gas that the air compressor machine is produced, and increases the air compressor machine and opens
Stop the cycle；
The reservoir pressure sensor is used for the gas storage pressure for detecting air accumulator；
The gas flowmeter is used for the current gas consumption in detection gas pipe network；
The man-machine monitoring unit includes the air compressor energy-saving regulation device described in above-mentioned second aspect.
The invention has the beneficial effects as follows：The air compressor energy-saving that the present invention is provided regulates and controls method, apparatus and system, by sky
Prediction volume air accumulator being set up in press system, cushioning effect being served to the gas that air compressor machine is produced, the gas flow of output can
It is just met for the gas consumption with gas point；And, the prediction volume air accumulator increased the air compressor machine start and stop cycle, be to shorten air compressor machine
Discharge time and increase air compressor machine downtime create condition；Further, after air compressor machine work, according to prediction volume gas storage
The volume of tank, default plus unloading pressure difference and the current gas consumption with gas point, determine the discharge time after air compressor machine unloading and stop
Machine time sum, and discharge time and downtime after air compressor machine unloading are arranged according to discharge time and downtime sum,
And downtime is more than 0, the discharge time of air compressor machine thus, is shortened, is reduced and is wasted, saved electric energy.The present invention is avoided
Frequency Conversion Modification is carried out to determining frequency air compressor machine, by optimizing air accumulator and setting up the man-machine monitoring unit of auxiliary, set original is not eliminated
In the case of standby, the energy-saving effect for determining frequency air compressor machine is improved at low cost.
Description of the drawings
The exemplary embodiment of the present invention will be described by referring to accompanying drawing in detail below, make one of ordinary skill in the art
The above-mentioned and other feature and advantage of the present invention are become apparent from, in accompanying drawing：
Fig. 1 is the schematic flow sheet that air compressor energy-saving provided in an embodiment of the present invention regulates and controls method；
Fig. 2 is the structured flowchart of air compressor energy-saving regulation device provided in an embodiment of the present invention；
Fig. 3 is the structural representation of air compressor energy-saving regulator control system provided in an embodiment of the present invention.
Specific embodiment
Technical scheme is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.May be appreciated
It is that specific embodiment described herein is used only for explaining the present invention, rather than limitation of the invention.Further need exist for illustrating
, for the ease of description, in accompanying drawing, illustrate only part related to the present invention rather than entire infrastructure.
Fig. 1 is the schematic flow sheet that air compressor energy-saving provided in an embodiment of the present invention regulates and controls method.It is right that the method is applied to
Determining frequency air compressor machine carries out the situation of reducing energy consumption, and the method can be executed by air compressor energy-saving regulator control system.As shown in figure 1,
The method includes：
After step 110, air compressor machine loading, the gas storage pressure of prediction volume air accumulator is obtained in real time and with gas pipe network
Current gas consumption.
Wherein, current gas consumption represent with gas point unit interval (such as 1 minute or 1 hour) gas consumption number, predict volume
The air inlet of air accumulator is connected with the blowing mouth of air compressor machine, predicts the gas outlet of volume air accumulator by being connected to use with gas pipe network
Gas point, predicts that volume air accumulator is used for the gas for buffering air compressor machine generation, increases the air compressor machine start and stop cycle.
Exemplary, man-machine monitoring unit can pass through the reservoir pressure sensor being arranged on prediction volume air accumulator,
The gas storage pressure of prediction volume air accumulator is obtained, by being arranged at in the gas flowmeter acquisition gas pipe network on gas pipe network
Current gas consumption.Wherein, man-machine monitoring unit may include host computer and control subelement；Preferably, include can for control subelement
Programmed logic controller (PLC) and I/O modules, PLC and host computer set up monitoring network, are shown by host computer man-machine interface in real time
The data such as gas flow and air accumulator gas pressure, and make the man-machine monitoring unit that there are duplex communication capabilities.
In the present embodiment, above-mentioned man-machine monitoring unit may be provided at pneumatics mechanism gas scene, realize local monitor；It is preferred that
, above-mentioned control subelement is arranged on pneumatics mechanism gas scene, and control subelement can also pass through network share air compressor machine dependency number
According to for example presetting unloading pressure and default on-load pressure, air compressor machine start and stop state, air compressor machine failure, oil temperature oil pressure and exhaust temperature
Degree etc., is achieved in remote monitoring of the host computer to air compressor machine.Further, be improve existing air compressor machine waste present situation, on
Position machine can achieve the long-range start and stop to air compressor machine.
The present embodiment carries out reducing energy consumption mainly for frequency air compressor machine is determined, depending on frequency air compressor machine mode of operation be divided into plus
Carry, unload and shut down three phases.Normally only when air compressor machine enters unloading phase, gas storage pressure inside the tank is default still greater than air compressor machine
During on-load pressure, air compressor machine is only possible to be occurred shutting down.During shutdown, motor shuts down, and air compressor machine is in holding state.And for
For compressed air preparation system, useful work is done in loading, and unloading flogs a dead horse, and shuts down and does not do work.Therefore, unloading can be reduced as far as possible
Duration realize energy-saving.
Step 120, the volume according to prediction volume air accumulator, default plus unloading pressure difference and current gas consumption, determine empty
Discharge time and downtime sum after press unloading.
Wherein, preset plus unloading pressure difference be default unloading pressure and the difference of default on-load pressure, preset unloading pressure with
Default on-load pressure is determined when prediction volume air accumulator is selected.
In the present embodiment, storage of the man-machine monitoring unit according to the reservoir pressure sensor collection on prediction volume air accumulator
Atmospheric pressure, control determine frequency air compressor machine plus unload etc. mode of operation.Specifically, when gas storage pressure is less than default on-load pressure,
Show to predict that tolerance is not enough to the demand for maintaining the use gas point under constant pressure air feeding requirement in volume air accumulator, air compressor machine enters loading
Pattern；When volume reservoir pressure is predicted higher than default unloading pressure, air compressor machine enters unloading mode；Air compressor machine is unloaded from entrance
Load pattern reaches this period of default on-load pressure again to gas storage pressure, be air compressor machine discharge time with downtime it
With here, machine monitoring unit is determined according to the volume of prediction volume air accumulator, default plus unloading pressure difference and current gas consumption
Discharge time and downtime sum after air compressor machine unloading.
Wherein, the volume of above-mentioned prediction volume air accumulator can poor by air compressor machine start and stop safety condition, default plus unloading pressure,
Air compressor machine gas production and current gas consumption determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For
Standard atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, represents many of unit interval air compressor machine aerogenesis
Few, B is the current gas consumption.
Above-mentioned discharge time is represented by with downtime sum：
Wherein, tStopRepresent air compressor machine downtime, tUnloadRepresent air compressor machine discharge time.
And the load time of air compressor machine is expressed as：
Therefore, the start and stop cycle T of air compressor machine is represented by：
From above-mentioned relation formula, in the case where air compressor machine gas production and current gas consumption are constant, volume gas storage is predicted
The volume of tank or default plus unloading pressure difference are bigger, and the air compressor machine start and stop cycle is bigger, now, if air compressor machine discharge time is less,
Then air compressor machine downtime is longer, and energy-conservation is more obvious.But from the economy of engineering, predict that the volume of volume air accumulator is bigger
More unfavorable to investing, therefore, unrestricted increase gas storage tankage size is unpractical.The volume of prediction volume air accumulator is less, and 1 is little
When interior air compressor machine start-stop time higher limit may increase, and air compressor machine frequent start-stop can shorten the life-span of equipment.
In sum, in the case where air compressor machine start and stop safety condition is met, i.e., in 1 hour, air compressor machine start-stop time does not surpass
Cross 6 times, the minimum volume of prediction volume air accumulator can be calculated.Consider that air compressor machine start-stop time is worst feelings for 6 times in 1 hour
Condition, therefore, predicts that the minimum volume of volume air accumulator can be：
Further, if requiring that gas pressure is constant with gas point, preset plus unloading pressure difference also should be constant, now, be
Make the different gas consumptions of same prediction volume air accumulator satisfaction uses gas point, calculates prediction volume storage during by B=1/2 A
The volume of gas tank, now predicts that the PRESSURE-VOLUME RELATION formula of volume air accumulator is：
Consider that air compressor machine start-stop time is worst condition for 6 times in 1 hour, therefore, predicts the minimum of volume air accumulator
Volume can be：
Step 130, when the discharge time after air compressor machine unloading is set according to discharge time and downtime sum with shutting down
Between.
In this enforcement, equipment supervisor can be set by man-machine monitoring unit according to discharge time and downtime sum
The discharge time being empty after press unloading and downtime, and downtime is more than 0, to shorten air compressor machine discharge time.Example
Property, if the volume according to prediction volume air accumulator, default plus unloading pressure difference and current gas consumption, after determining air compressor machine unloading
Discharge time and downtime sum be 10 minutes, then it is 2 minutes to arrange discharge time on host computer, then necessarily occur
Air compressor machine is shut down.
In addition, being to reduce manufacturing and designing difficulty to air accumulator, above-mentioned prediction volume air accumulator may include the first air accumulator
With the second air accumulator, the first air accumulator and the second air accumulator are arranged in parallel.First air accumulator and the second air accumulator can adopt existing
Air accumulator, the air accumulator of a big volume need not be remanufactured as prediction volume air accumulator.In measuring and calculating prediction volume gas storage
During the volume of tank, only the first air accumulator can be accessed in air compressor energy-saving regulator control system, i.e. the air inlet of the first air accumulator and sky
The blowing mouth connection of press, the gas outlet of the first air accumulator is used gas point by being connected to gas pipe network, is held further according to above-mentioned prediction
The method of testing for storing up the volume of gas tank selectes out suitable air accumulator total measurement (volume), is held by air accumulator total measurement (volume) and the first air accumulator
The difference of product determines the second air accumulator.The first air accumulator and the second air accumulator are connected in parallel to air compressor energy-saving regulator control system finally, right
Air compressor machine carries out energy-conservation regulation and control.
It should be noted that above-mentioned air compressor energy-saving can be adopted to regulate and control method, energy-conservation regulation and control are carried out to whole air-compressor set.
Air compressor energy-saving provided in an embodiment of the present invention regulates and controls method, by setting up prediction volume storage in air compressor system
Gas tank, serves cushioning effect to the gas that air compressor machine is produced, and the gas flow of output can be just met for the gas consumption with gas point；And
And, the prediction volume air accumulator increased the air compressor machine start and stop cycle, be to shorten air compressor machine discharge time and increase air compressor machine to shut down
Time creates condition；Further, the volume, default plus unloading pressure after air compressor machine work, according to prediction volume air accumulator
Difference and the current gas consumption with gas point, determine the discharge time after air compressor machine unloading and downtime sum, and according to during unloading
Between with downtime sum arrange air compressor machine unloading after discharge time and downtime, and downtime be more than 0, thus, contracting
The short discharge time of air compressor machine, reduces and wastes, saved electric energy.Present invention, avoiding to determining frequency air compressor machine and carrying out frequency conversion to change
Make, by optimizing air accumulator and setting up the man-machine monitoring unit of auxiliary, in the case of original equipment is not eliminated, it is fixed to improve at low cost
The energy-saving effect of frequency air compressor machine.
In another embodiment of the present invention, after air compressor machine loading, also include：Gas pressure in the gas pipe network of acquisition in real time
Power；If preset pressure value is not less than with the gas pressure in gas pipe network, send pressure limit warning, to point out supervisor to drop
Gas pressure in low use gas pipe network.
Exemplary, the error of subelement program is controlled in the error of air compressor machine local controller program and man-machine monitoring unit
When, or the change due to parameter, be all likely to result in preset pressure value is not less than with the gas pressure in gas pipe network.Therefore, exist
Man-machine monitoring unit is detected when being not less than preset pressure value with the gas pressure in gas pipe network, and host computer sends pressure limit report
Alert, point out supervisor to reduce the gas pressure in the use gas pipe network.Specifically, supervisor can pass through to open prediction volume
Portion gas released by vent valve on air accumulator, reduce with the gas pressure in gas pipe network or prediction volume air accumulator, with reality
Show stablizing for system pressure.
In another embodiment of the present invention, after air compressor machine loading, also include：In unit time, add up air compressor machine
Start-stop time；If air compressor machine start-stop time reaches air compressor machine start-stop time preset value, air compressor machine security alarm is sent, to point out
Supervisor executes the operation for forbidding that air compressor machine is shut down within the current one time again；Or, if air compressor machine start-stop time reaches
Air compressor machine start-stop time preset value is arrived, then the discharge time in the adjust automatically current one time is to discharge time and downtime
Sum.
Exemplary, the above-mentioned unit interval can be 1 hour, and air compressor machine start-stop time preset value can be air compressor machine start-stop time
Higher limit (such as 6 times).When man-machine monitoring unit detects air compressor machine start-stop time and reaches air compressor machine start-stop time preset value, send out
Go out safety alarm, point out supervisor's manual modification discharge time, forbid that air compressor machine is shut down within the current one time again；People
Machine monitoring unit also can adjust the discharge time in the current one time to discharge time and downtime sum automatically, it is to avoid
Air compressor machine frequent start-stop.Afterwards, can suitably increase default plus unloading pressure poor, discharge time is recalled to unloading for arranging before
The load time (such as 2 minutes), with this, air compressor machine machine stop times are made to meet air compressor machine start and stop safety condition.
Fig. 2 is the structured flowchart of air compressor energy-saving regulation device provided in an embodiment of the present invention.As shown in Fig. 2 air compressor machine
Energy-saving regulation-control device includes：
Current gas consumption acquisition module 100, after loading, obtains the gas storage pressure of prediction volume air accumulator in real time for air compressor machine
Power and with the current gas consumption in gas pipe network, wherein, predicts that the air inlet of volume air accumulator is connected with the blowing mouth of air compressor machine,
Gas point is used by being connected to gas pipe network in the gas outlet of prediction volume air accumulator, and prediction volume air accumulator is used for buffering air compressor machine product
Raw gas, increases the air compressor machine start and stop cycle；
Unloading downtime determining module 200, poor for the volume according to prediction volume air accumulator, default plus unloading pressure
With current gas consumption, the discharge time after air compressor machine unloading and downtime sum is determined, wherein, default plus unloading pressure difference is
The difference of default unloading pressure and default on-load pressure；
Unloading downtime setup module 300, for arranging air compressor machine unloading according to discharge time and downtime sum
Discharge time afterwards and downtime, and downtime is more than 0, to shorten air compressor machine discharge time.
In the present embodiment, prediction volume air accumulator may include the first air accumulator and the second air accumulator, the first air accumulator and the
Two air accumulators are arranged in parallel.
Wherein, the volume of prediction volume air accumulator can, pneumatics poor by air compressor machine start and stop safety condition, default plus unloading pressure
Machine gas production and current gas consumption determine, and relational expression is：
Wherein, V be predict volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, and B is current gas consumption.
Further, the volume of prediction volume air accumulator can be poor by air compressor machine start and stop safety condition, default plus unloading pressure
Determine with air compressor machine gas production, and relational expression is：
Wherein, V be predict volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production.
For realizing that pressure limit is reported to the police, above-mentioned air compressor energy-saving regulation device also includes：
With the voltage-controlled acquisition module of gas pipe network gas, for the gas after air compressor machine is loaded, in the gas pipe network of acquisition in real time
Pressure；
Pressure warning module, if for being not less than preset pressure value with the gas pressure in gas pipe network, sending pressure and surpassing
Limit is reported to the police, to point out supervisor to reduce with the gas pressure in gas pipe network.
Preferably, above-mentioned air compressor energy-saving regulation device also includes：
Start-stop time accumulation module, for after air compressor machine is loaded, in unit time, adds up air compressor machine start and stop time
Number；
Safe early warning module, if reaching air compressor machine start-stop time preset value for air compressor machine start-stop time, sends pneumatics
Machine security alarm, to point out supervisor to execute the operation for forbidding that air compressor machine is shut down within the current one time again；Or,
If air compressor machine start-stop time reaches air compressor machine start-stop time preset value, unloading in the adjust automatically current one time
The load time is to discharge time and downtime sum.
The air compressor energy-saving regulation device that the present embodiment is provided, is regulated and controled with the air compressor energy-saving provided by the embodiment of the present invention
Method belongs to same inventive concept, the air compressor energy-saving regulation and control method provided by the executable embodiment of the present invention, possesses corresponding
Function and beneficial effect.The ins and outs of detailed description in the present embodiment, not can be found in pneumatics provided in an embodiment of the present invention
Machine energy-conservation regulates and controls method.
Fig. 3 is the structural representation of air compressor energy-saving regulator control system provided in an embodiment of the present invention.As shown in figure 3, this is
System includes man-machine monitoring unit 1, air compressor machine 2, prediction volume air accumulator 3, reservoir pressure sensor 4 and gas flowmeter 5；
Man-machine monitoring unit 1 connects air compressor machine 2, reservoir pressure sensor 4 and gas flowmeter 5 respectively, predicts volume
The air inlet of air accumulator 3 is connected with the blowing mouth of air compressor machine 2, predicts the gas outlet of volume air accumulator 3 by being connected with gas pipe network 10
It is connected to and uses gas point, reservoir pressure sensor 4 is arranged on prediction volume air accumulator 3, and gas flowmeter 5 is arranged at uses gas pipe network
On 10；
Wherein, prediction volume air accumulator 3 is used for the gas for buffering the generation of air compressor machine 2, increases by the 2 start and stop cycle of air compressor machine；
Reservoir pressure sensor 4 is used for the gas storage pressure for detecting air accumulator；
Gas flowmeter 5 is used for current gas consumption of the detection in gas pipe network 10；
Man-machine monitoring unit 1 is arranged to：
After air compressor machine 2 is loaded, the gas storage pressure of prediction volume air accumulator 3 is obtained in real time and with current in gas pipe network 10
Gas consumption；
Volume, default plus unloading pressure difference and current gas consumption according to prediction volume air accumulator 3, determines that air compressor machine 2 is unloaded
Discharge time after load and downtime sum, wherein, preset plus unloading pressure difference are default unloading pressure and default loading pressure
The difference of power；
Discharge time after air compressor machine 2 is unloaded and downtime are arranged according to discharge time and downtime sum, and is stopped
The machine time is more than 0, to shorten 2 discharge time of air compressor machine.
Such scheme is based on, with reference to Fig. 3, prediction volume air accumulator 3 includes the first air accumulator 31 and the first air accumulator 32, the
One air accumulator 31 and the first air accumulator 32 are arranged in parallel.
Further, in the present embodiment, predict the volume of volume air accumulator 3 by 2 start and stop safety condition of air compressor machine, default plus
Unloading pressure is poor, 2 gas production of air compressor machine and current gas consumption determine, and relational expression is：
Wherein, V is the volume for predicting volume air accumulator 3, N0For 2 start-stop time higher limit of air compressor machine in 1 hour, P0For mark
Quasi- atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is 2 gas production of air compressor machine, and B is current gas consumption.
Further, if requiring that gas pressure is constant with gas point, preset plus unloading pressure difference also should be constant, now, be
Make what same prediction volume air accumulator 3 met different gas consumptions to use gas point, during by B=1/2 A, calculate prediction volume storage
The volume of gas tank 3, predicts the volume of volume air accumulator 3 by 2 start and stop safety condition of air compressor machine, default plus unloading pressure difference and pneumatics
2 gas production of machine determines, and relational expression is：
Wherein, V is the volume for predicting volume air accumulator 3, N0For 2 start-stop time higher limit of air compressor machine in 1 hour, P0For mark
Quasi- atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is 2 gas production of air compressor machine.
Such scheme is based on, air compressor energy-saving regulator control system also includes being arranged at the webmaster pressure sensing with gas pipe network 10
Device 6, for gas pressure of the detection in gas pipe network 10；
Accordingly, man-machine monitoring unit 1 is additionally operable to：
After air compressor machine 2 is loaded, by 6 gas pressure of the real-time acquisition in gas pipe network 10 of webmaster pressure sensor；
If preset pressure value is not less than with the gas pressure in gas pipe network 10, send pressure limit warning, to point out to supervise
Pipe personnel reduce with the gas pressure in gas pipe network 10.
Further, man-machine monitoring unit 1 is additionally operable to：
After air compressor machine 2 is loaded, in unit time, add up 2 start-stop time of air compressor machine；
If 2 start-stop time of air compressor machine reaches 2 start-stop time preset value of air compressor machine, 2 security alarm of air compressor machine is sent, to carry
Show that supervisor executes the operation for forbidding that air compressor machine 2 is shut down within the current one time again；Or,
If 2 start-stop time of air compressor machine reaches 2 start-stop time preset value of air compressor machine, in the adjust automatically current one time
Discharge time is to discharge time and downtime sum.
In addition, as shown in figure 3, the man-machine monitoring unit 1 in the present embodiment may include host computer 12 and control subelement 11；
Preferably, control subelement 11 includes programmable logic controller (PLC) (PLC) 111 and I/O modules 112, PLC111 and host computer 12
Monitoring network is set up, the data such as gas flow and air accumulator gas pressure is shown in real time by 12 man-machine interface of host computer, and is made this
There are man-machine monitoring unit 1 duplex communication capabilities, I/O modules 112 to be used for receiving and sending data.
Further, air compressor energy-saving regulator control system also includes 7 He of pressure gauge on the spot being arranged on the first air accumulator 31
Vent valve 9, and the drying machine 8 of 3 gas outlet of connection prediction volume air accumulator.Site supervision personnel can pass through pressure gauge on the spot
7 gas storage pressures for checking prediction volume air accumulator 3 at any time, when gas storage pressure is not less than preset pressure value, can pass through vent valve 9
To predicting that volume air accumulator 3 is deflated；The gas drying machine 8 flowed out from prediction volume air accumulator 3 is delivered to use after drying
Gas point.
The air compressor energy-saving regulator control system that the present embodiment is provided, adjusts including the air compressor energy-saving provided by the embodiment of the present invention
Control device, possesses corresponding function and beneficial effect.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of air compressor energy-saving regulates and controls method, it is characterised in that include：
After air compressor machine loading, the gas storage pressure of prediction volume air accumulator is obtained in real time and with the current gas consumption in gas pipe network,
Wherein, the air inlet of the prediction volume air accumulator is connected with the blowing mouth of the air compressor machine, the prediction volume air accumulator
Gas point is used by described being connected to gas pipe network in gas outlet, and the prediction volume air accumulator is used for buffering what the air compressor machine was produced
Gas, increases the air compressor machine start and stop cycle；
Volume, the default plus poor and described current gas consumption of unloading pressure according to the prediction volume air accumulator, determines the sky
Discharge time and downtime sum after press unloading, wherein, the default plus unloading pressure difference for default unloading pressure with
The difference of default on-load pressure；
Discharge time and downtime after the air compressor machine unloading are arranged according to the discharge time and downtime sum, and
The downtime is more than 0, to shorten the air compressor machine discharge time.
2. method according to claim 1, it is characterised in that the prediction volume air accumulator includes the first air accumulator and
Two air accumulators, first air accumulator and the second air accumulator are arranged in parallel.
3. method according to claim 1 and 2, it is characterised in that the volume of the prediction volume air accumulator is by air compressor machine
Start and stop safety condition, poor default plus unloading pressure, air compressor machine gas production and the current gas consumption determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, and B is the current gas consumption.
4. method according to claim 1 and 2, it is characterised in that the volume of the prediction volume air accumulator is by air compressor machine
Start and stop safety condition, default plus unloading pressure difference and air compressor machine gas production determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production.
5. method according to claim 1 and 2, it is characterised in that after air compressor machine loading, also include：
Gas pressure in the use gas pipe network is obtained in real time；
If the gas pressure with gas pipe network is not less than preset pressure value, pressure limit warning is sent, to point out to supervise
Personnel reduce the gas pressure in the use gas pipe network.
6. method according to claim 1 and 2, it is characterised in that after air compressor machine loading, also include：
In unit time, add up the air compressor machine start-stop time；
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, air compressor machine security alarm is sent, to point out
Supervisor executes the operation for forbidding that the air compressor machine is shut down within the current one time again；Or,
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, unloading in the adjust automatically current one time
The load time is to the discharge time and downtime sum.
7. a kind of air compressor energy-saving regulation device, it is characterised in that include：
Current gas consumption acquisition module, for air compressor machine loading after, obtain in real time prediction volume air accumulator gas storage pressure and
With the current gas consumption in gas pipe network, wherein, the air inlet of prediction volume air accumulator is connected with the blowing mouth of the air compressor machine
Connect, gas point is used by described being connected to gas pipe network in the gas outlet of the prediction volume air accumulator, the prediction volume air accumulator
For buffering the gas that the air compressor machine is produced, increase the air compressor machine start and stop cycle；
Unloading downtime determining module, for the volume according to the prediction volume air accumulator, default plus unloading pressure difference and
The current gas consumption, determines the discharge time after air compressor machine unloading and downtime sum, wherein, described default plus unload
Carry the difference that pressure differential is default unloading pressure and default on-load pressure；
Unloading downtime setup module, for arranging the air compressor machine unloading according to the discharge time and downtime sum
Discharge time afterwards and downtime, and the downtime is more than 0, to shorten the air compressor machine discharge time.
8. device according to claim 7, it is characterised in that the prediction volume air accumulator includes the first air accumulator and
Two air accumulators, first air accumulator and the second air accumulator are arranged in parallel.
9. the device according to claim 7 or 8, it is characterised in that the volume of the prediction volume air accumulator is by air compressor machine
Start and stop safety condition, poor default plus unloading pressure, air compressor machine gas production and the current gas consumption determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production, and B is the current gas consumption.
10. the device according to claim 7 or 8, it is characterised in that the volume of the prediction volume air accumulator is by air compressor machine
Start and stop safety condition, default plus unloading pressure difference and air compressor machine gas production determine, and relational expression is：
Wherein, V be described prediction volume air accumulator volume, N0For air compressor machine start-stop time higher limit, P in 1 hour0For standard
Atmospheric pressure, Δ P are poor for default plus unloading pressure, and A is air compressor machine gas production.
11. devices according to claim 7 or 8, it is characterised in that also include：
With the voltage-controlled acquisition module of gas pipe network gas, for after air compressor machine is loaded, obtaining the gas in the use gas pipe network in real time
Pressure；
Pressure warning module, if being not less than preset pressure value for the gas pressure with gas pipe network, sends pressure and surpasses
Limit is reported to the police, to point out supervisor to reduce the gas pressure in the use gas pipe network.
12. devices according to claim 7 or 8, it is characterised in that also include：
Start-stop time accumulation module, for after air compressor machine is loaded, in unit time, adds up the air compressor machine start and stop time
Number；
Safe early warning module, if reaching air compressor machine start-stop time preset value for the air compressor machine start-stop time, sends pneumatics
Machine security alarm, to point out supervisor to execute the operation for forbidding that the air compressor machine is shut down within the current one time again；Or
Person,
If the air compressor machine start-stop time reaches air compressor machine start-stop time preset value, unloading in the adjust automatically current one time
The load time is to the discharge time and downtime sum.
13. a kind of air compressor energy-saving regulator control systems, it is characterised in that including man-machine monitoring unit, air compressor machine, prediction volume gas storage
Tank, reservoir pressure sensor and gas flowmeter；
The man-machine monitoring unit connects the air compressor machine, the reservoir pressure sensor and the gas flowmeter respectively,
The air inlet of the prediction volume air accumulator is connected with the blowing mouth of the air compressor machine, the gas outlet of the prediction volume air accumulator
Gas point is used by being connected to gas pipe network, the reservoir pressure sensor is arranged on the prediction volume air accumulator, described
Gas flowmeter is arranged at described with gas pipe network；
Wherein, the prediction volume air accumulator is used for buffering the gas that the air compressor machine is produced, and increases the air compressor machine start and stop week
Phase；
The reservoir pressure sensor is used for the gas storage pressure for detecting air accumulator；
The gas flowmeter is used for the current gas consumption in detection gas pipe network；
The man-machine monitoring unit includes the air compressor energy-saving regulation device described in any one of claim 7-12.
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