CN106404062A - System for real-time monitoring and evaluating operation energy efficiency of industrial air compression station - Google Patents
System for real-time monitoring and evaluating operation energy efficiency of industrial air compression station Download PDFInfo
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to a system for real-time monitoring and evaluating the operation energy efficiency of an industrial air compression station. The system comprises an industrial air compression station operation energy efficiency monitoring system and an operation energy efficiency evaluating system, wherein the industrial air compression station operation energy efficiency monitoring system is used to measure the compressed air flow of the air compression station, acquires pressure difference of various sections of an air compression system of the industrial air compression station through pressure sensors, and acquires current values of the driving motor of each air compressor, the industrial air compression station operation energy efficiency evaluating system is used to accurately evaluate the operation energy efficiency level of the air compression station. The system solves the major problems existed in a conventional system for monitoring and evaluating the operation energy efficiency of an industrial air compression station, such as lack of reasonable evaluation criteria for evaluating actual operation efficiency of the industrial air compression station, impossibility of accurately evaluating the energy-saving operation potential of the industrial air compression station, and lack of convenient and rapid flow measuring equipment that can be installed without stopping a device. A comprehensive and reasonable industrial air compression station operation energy efficiency evaluation method is provided, and the system has importance practical meanings.
Description
Technical field
The present invention relates to a kind of monitoring system of industry air compression station, especially a kind of industry air compression station operational energy efficiency scene is supervised
Survey and assessment system.
Background technology
Industrial air compression station has important in industrial circle and is widely applied, and currently, the industrial air compression station overwhelming majority is by many
Platform case dress formula exhaust end base of oil injection threaded bolt air compressor machine composition.Screw-rod air compressor operation energy consumption accounts for the 5% about of national total electricity consumption, screw rod
Formula compressor operation efficiency is generally low, and the correct assessment of compressor operation efficiency and Effec-tive Function are the task of top priority.
Currently, as one of the main energy consumption equipment of enterprise, the monitoring of its operational energy efficiency has caused widely industrial air compression station
Pay attention to, total ammeter and mass flow meters have generally been set live personal monitoring is carried out to the overall operation state of air compression station, main work
With being to ensure that the total electricity consumption of enterprise's gas and periodic statistical air compression station, lack real-time, complete to every compressor running status
The assessment of face monitoring and operational energy efficiency level is it is impossible to reflect that the operational energy efficiency state of air compression station and energy-saving run are dived exactly
Power.The air compression station operational monitoring instrument of the overwhelming majority is not connect with the operational energy efficiency platform there of enterprise entirety production system.
According to GB GB19153《Carried displacement air compressor energy efficiency market and efficiency grade》Regulation, air compressor machine machine
Group input specific power, that is, air-compressor set input power and the ratio of actual volumetric flow, are to determine air compressor machine product efficiency grade
Foundation, but the assessment for air compressor scene operational energy efficiency state lacks rational judge criterion.
Air compressor machine actual volumetric flow is the important performance parameter of air compressor machine, the standard of live flow during compressor operation
Really, quick measurement is to realize the indispensable important foundation of compressor operation efficiency real-time assessment.
In industrial air compression station, after the parallel connection of some air compressor machine outlet conduits, by a shared voltage stabilizing gas tank to gas
End supply, in order to ensure the pressure stability with gas scene, is generally arranging a voltage stabilizing gas tank with gas scene again.At present, pneumatics
Machine flow measurement device is both needed to be arranged in vacuum tank downstream line, and field-mounted process is complicated, and most needs interrupt sky
The work of press.Because industrial air compression station is as whole Motivation of enterprises and technique air source, lie substantially in long-term operation shape
State, the air compressor machine especially participating in production process is prohibited from random interruption of work, so, shutting down installation measuring instrument is
Very difficult.
When air compression station is composed in parallel by multiple air compressors, limited by in-site installation condition, be difficult to realize to wherein every
The flow of platform air compressor machine all carries out independent measurement, and the operational energy efficiency of separate unit air compressor machine cannot be assessed, and then can affect to whole sky
The correct assessment of pressure station operational energy efficiency.
According to GB/T 15487《Positive displacement compressor flow-measuring method》Regulation, air compressor machine flow measurement can adopt hole
Plate method, ASME nozzle process, may also be employed effusion meter method.Wherein, ASME nozzle process is used for the delivery test of air compressor machine, for no
Method carries out the air compressor machine scene running environment to air emptying, and this measuring method is simultaneously inadvisable；For operating condition excursion
Wider industrial air compression station, orifice flowmeter is subject to the less restriction of range ratio, is difficult to meet the measurement requirement under all operating modes；
Thermal flowmeter increases with use time, and measurement is partly aging, and certainty of measurement can decline；The air-flow of compressed air system
Other vibration sources at pulsation and scene can cause pipe vibration, leads to vortex-shedding meter certainty of measurement to decline.
According to the regulation of GB GB19153, one of important parameter in compressor operation energy efficiency evaluation " actual volume stream
In the test of amount ", need to be converted to standard inlet condition using the flow value measured by air compressor machine rate of discharge detection method
Corresponding volume flow.When by the high humidity of compressed air, air compressor machine pressure at expulsion is higher, delivery temperature is relatively low when, compression
During the condensed water that separates out relatively many, some parts between air entry and outlet flow measurement point（As separator, in
Cooler, aftercooler, air accumulator etc.）The condensed fluid of middle precipitation needs to be collected measuring, and by condensed fluid take out of a small amount of
Oil spout separates, then with this, volume flow is modified.Whole measuring and calculating process numerous and diverse it is adaptable to the examination of dispatching from the factory of laboratory environment
When testing, and being applied to in-site measurement, real-time is difficult to ensure that.
Contain a small amount of oil in exhaust end base of oil injection threaded bolt formula air compressor machine aerofluxuss, the certainty of measurement of air compressor machine actual volumetric flow can be produced
Raw impact.
Air compressor air intake state parameter, especially admission pressure, the aerofluxuss to air compressor machine for the isoparametric change of intake air temperature
Amount, pressure at expulsion, compression horsepower, operational efficiency etc. produce large effect.Motor in case dress formula pneumatics cabinet bulk, oil gas
The heat that the heat dissipation equipments such as bucket constantly produce, can make the intake air temperature of compressor raise；Similar to hundred more than air inlet on casing
The structure of leaf window shape, air inlet can produce restriction loss in air inlet, after air enters in casing, is substantially at amorphous flowing
State, air inlet flow losses increase further；The decline of the rising of intake air temperature and admission pressure can directly result under air inflow
Fall, work done during compression rises.
According to statistics, the leakage rate of industrial compressed air system often accounts for the 20%-30% of system gas production, is causing
While energy waste, leak the compressibility pressure drop leading to, the inefficient work of pneumatic tool and driving equipment can be made
Frequent operation, necessarily causes the increase of compressor operating time and the shortening of compressor service life.Compressed air system
Universal leakage phenomenon causes mainly due to shortage effectively monitoring.
Motor is present air compressor topmost driving power, in air compressor product efficiency classification standard
In, evaluation is not individually made to the efficiency grade of motor.Currently, country is just wideling popularize efficient electric in electric system
The application of machine, screw-rod air compressor operation energy consumption accounts for more than the 8% of national electric system power consumption, as air screw compression
The motor of machine main power source, its efficiency grade is the key index in the monitoring of screw air compressor operational energy efficiency.
Content of the invention
The purpose of the present invention be the air compression station improving in industrial undertaking lack for a long time perfect operational energy efficiency monitoring with
The present situation of assessment system, sets up the air compressor machine scene operational monitoring reasonable, accurate, exploitativeness is strong and energy efficiency evaluation system.
The present invention to achieve these goals, employed technical scheme comprise that：A kind of industry air compression station operational energy efficiency is supervised in real time
Survey and assessment system, including industrial air compression station operational energy efficiency monitoring system and operational energy efficiency assessment system, described industry air compression station
Operational energy efficiency monitoring system is by inlet flow rate measurement apparatus, input power measurement device, compressed air leakage monitoring device, air
Compressor behavior monitoring device forms, and the inlet end setting inlet flow rate measurement apparatus of every air compressor, for complete
Become air compression station compressed air stream measurement, every air compressor unit is provided with input power measurement device, for direct measurement
The input voltage of separate unit air compressor machine unit and current value, and then calculate the operation power consumption of air compressor machine；Described compressed air leakage
Monitoring device gathers the pressure difference in each segmentation of compressed air system of industrial air compression station by pressure transducer and monitors each point
Compressed air leakage situation in section；Described air compressor monitoring running state device connects every air compressor unit
Drive motor, for gathering the current value of the drive motor of every air compressor machine, and inverter compressor frequency setting
Magnitude of voltage；Industrial air compression station operational energy efficiency assessment system connects industrial air compression station operational energy efficiency monitoring system, for air compression station fortune
The accurate evaluation of row efficiency level.
Described flow measurement device includes flow tube and corresponding gas pressure sensor, atmospheric temperature and humidity
Sensor；Described flow tube has taper or streamlined inducer, the honeycomb screen section being arranged in measurement pipe, connects taper
Straight length between inducer and honeycomb screen section；It is arranged at the bend pipe of fluid measurement pipe downstream；And bend pipe is compressed with air
The flexible pipe connecting between machine air inlet.
Described compressed air leakage monitoring device is made up of the pressure transducer pinpointing and leakage scanner, described pressure transducer
Be separately positioned on air compression station gas output end gas tank, before and after cooling driers, on the gas tank of gas end scene；Described leakage scanner be used for into
One step finds out concrete leakage point.
Described industry air compression station operational energy efficiency assessment system has the exceeded alarm module of operational energy efficiency, compressor operation energy-conservation
Potential Evaluation module, the determination module of the drive motor efficiency grade of air compressor.
The local atmospheric pressure that the tapered inlet section of described flow tube is additionally provided with measurement tapered upstream aerial cross sectional is surveyed
Amount device, the tapered inlet section throat of flow tube is provided with pressure gauge；Described flexible pipe is rubber hose, rubber hose
It is connected using larynx hoop with the connected mode of screw-rod air compressor import, the bend loss at honeycomb screen rear portion.
The invention has the beneficial effects as follows：
The present invention is directed to the live operation characteristic of industrial air compression station, establishes reasonable and perfect industrial air compression station scene and runs energy
Effect appraisement system, the raising to current industrial air compression station operational energy efficiency has important practical significance.
The present invention, in the measuring and calculating carrying out air compression station operational energy efficiency evaluation of estimate " input specific power ", employs air compressor air intake
End flow measurement scheme, this measurement apparatus install convenient, do not affect the normal work of compressor bank, can be in the normal work of compressor bank
Installation and the measurement of flow measurement device is completed during work；Flow tube is arranged on the standard inlet position that case fills formula air compressor machine
Put, under the error condition that have ignored permission, measured flow value can be directly used for the calculating of " input specific power ", as energy
The foundation of effect level evaluation；The air inlet measurement pipe of the present invention by the hot and cold air stream of box house separately, makes air inlet measurement pipe exist
While completing flow measurement task, so that the intake resistance of air compressor machine is lost and reduce, intake air temperature declines, and operational energy efficiency level has
Improved, can be promoted as a kind of standard operational energy efficiency lifting device of air compressor machine.
For the leakage problem of generally existing in compressed air system, the present invention is giving full play to compressed air system routine
On the basis of the pressure measuring instruments of setting, differentiated by the reasonability of flow resistance voltage drop value in compressed air system, in real time
Detection leakage situation, and using leakage scanner, complete the positioning of leakage point.Leakage monitoring based on " pressure reduction determining method "
System have simple, practical, fast and accurately remarkable advantage it is achieved that leakage phenomenon check non-blind area, can effectively prevent press
Leakage serious phenomenon in contracting air system.
The energy efficiency evaluation system of the present invention inputted using under conventional exhaust back pressure the efficiency grade point of specific power as pass judgment on according to
According to not only giving the reasonable criterion of compressor operation efficiency level, and make energy-saving run potentiality one mesh of air compressor machine
It is clear.In addition, exceeded warning function can remind user in time compressed air system to be overhauled.Equally, drive motor
Efficiency grade can be given air compressor high efficiency motor replacement foundation.
The present invention solves subject matter present in current industrial air compression station monitoring running state and operational energy efficiency assessment, such as lacks
The rational assessment level of few industry air compression station actual motion efficiency, the potentiality that air compressor energy-saving runs cannot accurately be estimated；Lack
Weary flow measurement convenient, fast, that installation can not be shut down；Lack effective compressed air system leakage situation real-time monitoring
Device etc., it is proposed that comprehensively and rational industrial air compression station operational energy efficiency appraisal procedure, has important practical significance.
Brief description
Fig. 1 is the structural representation of the air compressor machine inlet flow rate measurement apparatus of the present invention；
Fig. 2 is the longitudinal section view of honeycomb screen in the air compressor machine inlet flow rate measurement apparatus of the present invention；
Fig. 3 is inlet end flow measurement device scheme of installation；
Fig. 4 is sensor mounting location schematic diagram in compressed air system leakage monitor.
Specific embodiment
Referring to the drawings industrial air compression station operational energy efficiency real-time monitoring involved in the present invention is carried out with assessment system
Elaborate.
As shown in Figures 1 to 4, a kind of industry air compression station operational energy efficiency real-time monitoring and assessment system, are made up of two parts,
Wherein, operational energy efficiency monitoring system mainly carries out real-time monitoring to the running status of air compressor machine, and operational energy efficiency assessment system is main
Accurate evaluation is carried out to air compression station operational energy efficiency level.
Industrial air compression station operational energy efficiency monitoring system is empty by inlet flow rate measurement apparatus, input power measurement device, compression
Gas leakage monitoring device, air compressor monitoring running state device composition, the inlet end setting import of every air compressor
Flow measurement device, is used for completing air compression station compressed air stream measurement, and every air compressor unit is provided with input power and surveys
Amount device, the input voltage for direct measurement separate unit air compressor machine unit and current value, and then calculate the operation work(of air compressor machine
Consumption；Compressed air leakage monitoring device gathers the pressure in each segmentation of compressed air system of industrial air compression station by pressure transducer
Difference is monitoring the compressed air leakage situation in each segmentation；Air compressor monitoring running state device connects every air pressure
The drive motor of contracting machine unit, for gathering the current value of the drive motor of every air compressor machine, and inverter compressor
The magnitude of voltage of frequency setting；Industrial air compression station operational energy efficiency assessment system connects industrial air compression station operational energy efficiency monitoring system, uses
Accurate evaluation in air compression station operational energy efficiency level.
Operational energy efficiency monitoring system mainly completes air compression station compressed air stream measurement, air compressor machine input power measurement, pressure
The functions such as contracting air system leakage condition monitoring, the monitoring of air compression station primary operating parameter.Operational energy efficiency monitoring system is mainly to sky
The operational energy efficiency state of press carries out real-time monitoring, and the efficiency level that operational energy efficiency assessment system is mainly run to air compression station is carried out
Accurate evaluation.
The present invention is provided with the decision-making function of the efficiency grade of the motor as the main driving source of industrial air compression station.
Charge flow rate measurement apparatus are installed on the position that ambient air enters compressor box, are GB/T3853《Positive displacement
Compressor proof test》Case specified in standard fills the standard inlet point of formula compressor, and measured gas flow is in
The flow value of " standard inlet condition " specified in standard, eliminates usual compressor outlet flow measurements and is scaled to " standard
The cumbersome procedure of suction condition ", overcome run scene condense water gaging difficulty, if ignore air compressor machine import and export between by
In sealing or the issuable micro-leakage of reason such as manufacturing process, and compressor give vent to anger in minimal amount oil spout, measured
Data on flows be used directly for specified in standard weigh air compressor operational energy efficiency " input specific power " calculating.
Flow measurement scheme in air compressor air intake end proposed by the present invention, completely can in the case of air compressor machine is non-stop-machine,
Realize the installation of flow measurement device, and the accurate measurement of flow；Meanwhile, by air inlet measurement pipe dexterously by box house
Hot and cold air stream separately, do not interfere with each other, reached the purpose improving compressor air inflow and reducing compression power consumption.
The present invention is directed to the leakage phenomenon of more generally existing in industrial air compression station system, adopts " pressure reduction determining method ", and
It is aided with leakage scanner to patrol and examine, the leakage phenomenon in compressed air system is carried out with " line ", more perfect prison that " point " combines
Survey.By in each segmentation of collect and process air system（As between barrel of oil and gas and air compression station voltage stabilizing gas tank, voltage stabilizing gas tank with filter cold
Between dry assembly, filter cold dry assembly import and export between, between cooling driers and live voltage stabilizing gas tank etc.）Pressure difference, and with just
Normal pressure difference compares, and tentatively judges the pipeline section of leakage, and then finds out concrete leakage further using leakage scanner
Point.
The input power measurement device direct measurement of the present invention input power of separate unit air compressor machine unit.
The compressor operation status monitoring of the present invention mainly acquires the current value of air compressor machine drive motor, and frequency conversion
The magnitude of voltage that formula compressor frequency sets.
Lack rational evaluation criterion for current air compression station operational energy efficiency it is impossible to real-time monitoring compressor operation efficiency is existing
The situation of shape, the present invention is according to the evaluation filling formula fuel injection screw air compressor product efficiency grade in GB/T19153 with regard to case
System, on the basis of long term test achievement in research, the performance parameter of reference line air compressor machine major families product in the industry, establish
Air compressor operational energy efficiency class parameter data base, typically will be produced with fuel injection screw air compressor in GB GB/T19153
The rated discharge pressure scope of 0.7MPa, 0.8MPa, 1.0MPa, the 1.25MPa in product Energy Efficiency Standard, refines further and expands
For 0.4MPa, 0.45MPa, 0.5MPa, 0.55MPa, 0.6MPa, 0.65MPa, 0.7MPa, 0.75MPa, 0.8MPa,
0.85MPa, 0.9MPa, 0.95MPa, 1.0MPa, 1.05MPa, 1.1MPa, 1.15MPa, 1.2MPa, 1.25MPa, 1.3MPa, and
Determine the input specific power values as efficiency classification standard under the conditions of each exhaust back pressure, and as the exceeded report of operational energy efficiency
Alert input specific power values, make the user can be easily under different actual motion exhaust back pressures, with corresponding as efficiency etc.
The input specific power values of level are compared, and draw the gap and preferable operating condition parameter between, both specify that compressor operating
Efficiency level, may determine that the energy saving space of compressor operation again, and the operating condition beyond limit value reported to the police.
Inlet flow rate measurement apparatus are installed between case dress formula pneumatics cabinet bulk and compressor air suction mouth, part in such as Fig. 3
Shown in 11.According to the flow direction of air compressor air intake, the ingredient of inlet flow rate measurement apparatus（See Fig. 1）It is respectively：Leading portion
Bell section, in order to reduce air inlet flow losses, the rectification section in measurement pipe, in order to improve pressure measurement accuracy, fluid is surveyed
Pass through flexible pipe 7 between the bend pipe 5 in buret downstream, bend pipe 5 and air compressor machine import and larynx hoop 6 is flexible coupling.In Fig. 3：11 is inlet flow
Measuring device, 12 be intake valve, 13 motors, 14 be main frame, 15 be separate oil tank, 16 be Blowoff ball valve, 17 be oil strainer,
18 it is minimum pressure valve, 19 be air cooler, 20 be oil cooler, 21 be fan, 22 be ball valve.
The concrete structure of the bell section of inlet flow rate measurement apparatus leading portion is as shown in figure 1, include：Bell 1, its bore
It is gradually reduced along air-flow direction；It is arranged at the first pressure of bell 1 upstream section A-A（I.e. local atmospheric pressure）, temperature
Degree, humidity measuring instrument；It is arranged at the second pressure measurement point 2 on bell throat B-B.It is arranged in fluid measurement pipeline
Rectification pipeline section, including：Honeycomb screen section；Connect the straight length 4 between tapered inlet and honeycomb screen, its honeycomb screen form adopts grid
Formula honeycomb screen 3（This device is alternative according to the actual operating mode of air compressor machine）.Rectification section concrete structure in flow tube is such as
Shown in Fig. 2, honeycomb screen form adopts checkering honeycomb screen.
The measuring and calculating step of air compressor machine inlet flow rate is according to GB/T1236《Industrial ventilation machine carries out performance with standardization air channel
Test》In relevant regulations and step carry out.
The present invention is directed to the monitoring of compressed air system leakage, using pressure reduction determining method, and is aided with leakage scanner.Pressure
Difference judges the arrangement of desirable pressure sensor as shown in figure 4, in Fig. 4：31 is air compressor machine, 32 is air compression station voltage stabilizing gas tank, 33 are
Filter, 34 be freezing type drier, 35 be live voltage stabilizing gas tank, P1-P5For pressure-measuring-point.Positioned at barrel of oil and gas, air compression station voltage stabilizing
The pressure under the various operating mode of pressure transducer Real-time Collection before and after gas tank 32, the cold dry assembly of filtration, at live voltage stabilizing gas tank 35
Value, pressure value is subtracted each other two-by-two and is obtained pressure difference, then compared with the positive normal pressure difference of each pipeline section, with this judge two sensors it
Between pipeline section whether have leakage phenomenon occur.Wherein, the positive normal pressure difference of filter 33 and freezing type drier 35 is said with product
Specified in bright book, maximum differential pressure value is defined, and the positive normal pressure difference of No leakage pipeline flowing is calculated by flow resistance.So
Afterwards the measurement pressure difference of pressure transducer and positive normal pressure difference are compared, if measured value is different from normal value, judge
There is leakage phenomenon in the pipeline section between this two sensors, and then find out concrete leakage point further using leakage scanner.
The input power measurement device direct measurement of the present invention input voltage of separate unit air compressor machine unit and current value, enter
And calculate the operation power consumption of air compressor machine.
The compressor operation state monitoring apparatus of the present invention acquire the current value of air compressor machine drive motor, and are sentenced with this
The operating condition of disconnected air compressor machine, start operating performance current value is 2-7 times of rated current（Depending on Starting mode）, load operating work
The current value of condition generally unloads 2-3 times of set current value.For inverter compressor, by the frequency of monitoring driving motor current
Rate, judges the load situation of change of air compressor machine.
The present invention carry out compressor operation efficiency grade assessment when, first, according to the power of air compressor machine drive motor
Size, judges that it is between 7.5kW to 315kW, less than 7.5kW, more than which in tri- intervals of 315kW.If place
In the region less than 7.5kW, then air compressor only has air cooling mode, then can according to the pressure at expulsion of actual motion,
Input specific power values corresponding to database lookup each efficiency grade, if the pressure at expulsion of actual motion is existing with data base
Deviation between rated discharge pressure, can take the method for linear interpolation to obtain the setting of efficiency grade, then again will be real
The input specific power values that border is run are compared therewith.If actual motion inputs specific power values exceeds 3 grades of efficiency defineds
Input specific power values, that is, send the exceeded warning of operational energy efficiency；If actual motion energy valid value does not have exceeded, may further determine that
Actual motion efficiency is in 1,2, T, which rank of in 3 grades, and then judge the operational energy efficiency level of every air compressor machine, Yi Jicun
Energy-saving potential size.If drive motor power is in the region more than 315kW, air compressor only has water-cooled
Mode, the concrete determination step of operational energy efficiency grade is identical with air-cooled type.If drive motor power is in 7.5kW extremely
Between 315kW, then should first determine whether that the type of cooling of air compressor is water-cooled or air-cooled, then cold according still further to this kind
But the efficiency grade regulation value corresponding to mode is judged.
When carrying out Motor Energy Efficiency grade and judging, first have to see motor belong to threephase asynchronous or permanent magnetism with
Step motor, if threephase asynchronous, efficiency grade criterion is GB18613《Middle-size and small-size threephase asynchronous
Energy efficiency market and efficiency grade》, input motor power (output) and number of poles, search 1,2,3 grades of motor efficiencies corresponding to efficiency
Value, and compared with the efficiency of the air compressor being used, determine the efficiency grade of motor.If drive motor is
Permasyn morot, the criterion of efficiency grade is GB30253《Permasyn morot energy efficiency market and efficiency etc.
Level》, it is divided into asynchronous starting three-phase permanent-magnetic synchronous motors and two kinds of frequency conversion drive permasyn morot, asynchronous starting three-phase is forever
Magnetic-synchro motor searches corresponding efficiency level data, frequency conversion drive permasyn morot according to the power of motor and number of poles
Corresponding efficiency level data is searched according to power of motor and rated speed, and then judges the efficiency grade of motor.
Claims (5)
1. a kind of industry air compression station operational energy efficiency real-time monitoring and assessment system, including industrial air compression station operational energy efficiency monitoring system
With operational energy efficiency assessment system it is characterised in that：Described industry air compression station operational energy efficiency monitoring system measures dress by inlet flow rate
Put, input power measurement device, compressed air leakage monitoring device, air compressor monitoring running state device form, every
The inlet end setting flow measurement device of air compressor, is used for completing air compression station compressed air stream measurement, every air pressure
Contracting machine unit is provided with input power measurement device, the input voltage for direct measurement separate unit air compressor machine unit and current value, enters
And calculate the operation power consumption of air compressor machine；Described compressed air leakage monitoring device gathers industrial air compression station by pressure transducer
The each segmentation of compressed air system on pressure difference monitoring the compressed air leakage situation in each segmentation；Described air compressor
Monitoring running state device connects the drive motor of every air compressor unit, for gathering the driving electricity of every air compressor machine
The current value of motivation, and the magnitude of voltage of inverter compressor frequency setting；Industrial air compression station operational energy efficiency assessment system connects
Industrial air compression station operational energy efficiency monitoring system, for the accurate evaluation of air compression station operational energy efficiency level.
2. industry air compression station operational energy efficiency real-time monitoring and assessment system according to claim 1 it is characterised in that：Described
Inlet flow rate measurement apparatus include flow tube and corresponding gas pressure sensor, atmospheric temperature and humidity sensor；
Described flow tube has taper or streamlined inducer, the honeycomb screen section being arranged in measurement pipe, connects tapered inlet section
Straight length and honeycomb screen section between；It is arranged at the bend pipe of fluid measurement pipe downstream；And bend pipe and air compressor air inlet
The flexible pipe connecting between mouthful.
3. industry air compression station operational energy efficiency real-time monitoring and assessment system according to claim 1 it is characterised in that：Described
Compressed air leakage monitoring device is made up of the pressure transducer pinpointing and leakage scanner, and described pressure transducer is respectively provided with
Before and after air compression station gas output end gas tank, cooling driers, on the gas tank of gas end scene；Described leakage scanner is used for finding out further
Concrete leakage point.
4. industry air compression station operational energy efficiency real-time monitoring and assessment system according to claim 1 it is characterised in that：Described
Industrial air compression station operational energy efficiency assessment system has the exceeded alarm module of operational energy efficiency, compressor operation energy potential evaluation mould
Block, the determination module of the drive motor efficiency grade of air compressor.
5. industry air compression station operational energy efficiency real-time monitoring and assessment system according to claim 2 it is characterised in that：Described
The tapered inlet section of flow tube is additionally provided with the local atmospheric pressure measurement device of measurement tapered upstream aerial cross sectional, and flow is surveyed
The tapered inlet section throat of buret is provided with pressure gauge；Described flexible pipe is rubber hose, rubber hose and screw pneumatics
Machine import, the connected mode of the bend loss at honeycomb screen rear portion adopt larynx hoop to connect.
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