CN206291421U - A kind of intelligent air-conditioning efficiency detector - Google Patents
A kind of intelligent air-conditioning efficiency detector Download PDFInfo
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- CN206291421U CN206291421U CN201621435992.1U CN201621435992U CN206291421U CN 206291421 U CN206291421 U CN 206291421U CN 201621435992 U CN201621435992 U CN 201621435992U CN 206291421 U CN206291421 U CN 206291421U
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Abstract
The utility model discloses a kind of intelligent air-conditioning efficiency detector, including casing, the box house is provided with power module, electrical measurement unit, airflow measurement unit, temperature measurement unit and efficiency computing unit；The tank surface is provided with human and machine interface unit, and the air-conditioning energy valid value that the efficiency computing unit is calculated is displayed in the human and machine interface unit.The utility model light structure, is easy to carry, and installs and measurement process is all without destruction main frame and pipeline, and measurement process, without shutting down, the work on main frame does not influence.The utility model is applicable to the different cold water main units for using on the market; excessively low and unduly high efficiency measured value noise can also be filtered; interference is eliminated to the full extent and the interference of machine, shutdown stage to energy valid value is opened, and main frame average energy valid value is reflected as accurately as possible.
Description
Technical field
The utility model is related to detection of air-conditioning field, and in particular to a kind of intelligent air-conditioning efficiency detector.
Background technology
The power consumption of usual central air conditioner system accounts for the 40%-50% of whole building power consumption, and wherein, central air conditioner system is cold
The power consumption of water dispenser group accounts for more than the 50% of whole central air conditioner system.For the central air conditioner system of long-term operation, usual one
Reach the large-scale screw rod or centrifugal cold water of 500 standard tons (1 standard ton is cold unit made in U.S.A, 1 standard ton=3.516kW works refrigerating capacity)
Unit year operation power charge can reach 1,000,000 RMB, and energy consumption spending is huge.The operational energy efficiency normal range (NR) of air-conditioner host is such as
Under：
Air-cooled piston machine 0.8-1.5kW/RT (COP is 2.3-4.4)
Water-cooled piston machine 0.6-1.0kW/RT (COP is 3.5-5.9)
Water-cooling screw rod machine 0.4-0.80kW/RT (COP is 4.4-8.8)
Water Cooled Centrifugal Machine 0.4-0.75kW/RT (COP is 4.7-8.8)
Variable frequency centrifuge 0.25-0.75kW/RT (COP is 4.7-5.9)
Under general air conditioning condition, the specified efficiency of water-cooled cold water cooling main frame is 0.60 to (1TON between 0.8kW/TON
=1USTR cold units made in U.S.A are with metric unit reduction formula：3.516KW=1USTR), but actual water cooled chiller transport
Row fluctuates in the range of the such a very big efficiencies of 0.25-1.0kW/TON.Operation electricity=accumulative refrigerating capacity × average energy
Effect, in the case of accumulative demand refrigerating capacity identical, the height of average efficiency determines the height of equipment operating cost, and equipment
Actual motion performance is often due to service condition and the fluctuation of corrective maintenance state efficiency are very big with deviation range.So, inspection in real time
Survey and diagnose the performance efficiency of unit for optimization and energy saving highly significant.
The efficiency detection method at current handpiece Water Chilling Units scene is to be detected to record out parameters with different gauge tables：Current
Amount, water temperature angle value, amount of equipment power consumption etc., then by manually and by computer combined data being calculated.Also without special
Equipment or self-contained unit carry out the performance efficiency of real-time diagnosis water cooled chiller, typical handpiece Water Chilling Units efficiency diagnosis point at present
Analysis two kinds of ways be：First, assessment is analyzed to the operational factor of equipment by experienced expert engineer, is drawn coarse
Empirical analysis result；2nd, some building automation integrated systems by the instrumentations such as sensor carry out on-line checking cold and
Electricity, although can also obtain the result of monitoring device efficiency, but efficiency real-time diagnosis is not carried out to handpiece Water Chilling Units, meanwhile, by
What is used in the automatic building control system for possessing this function on the market and normally is considerably less, and is made because automatic building control system is huge
Valency is high, belongs to System Integration Engineering.The solution that the utility model differentiates as a kind of diagnosis of performance efficiency, with data
The characteristics of convenient sources, assessment result reliability high.
Utility model content
The technical problems to be solved in the utility model is directed to the market vacancy of existing central air conditioner energy efficiency survey tool, public
A kind of intelligent central air conditioner energy efficiency monitor is opened, has been realized to the energy valid value of general various brands central air-conditioning cold water main unit
Measurement and performance efficiency are diagnosed and differentiated, and possess unit conversion, curve show, the additional functions such as historical query.
To achieve the above object, the technical scheme that the utility model is taken is as follows：
A kind of intelligent air-conditioning efficiency detector, including casing, it is characterised in that：The box house is provided with power supply mould
Block, electrical measurement unit, airflow measurement unit, temperature measurement unit and efficiency computing unit, the electrical measurement unit, flow
Measuring unit and temperature measurement unit are attached by holding wire with the efficiency computing unit respectively；The tank surface sets
Human and machine interface unit is equipped with, the air-conditioning energy valid value that the efficiency computing unit is calculated is displayed in the human and machine interface unit；
Wherein, the efficiency computing unit sets the threshold value of flow, temperature and electricity, when the change of flow, temperature or electricity is too fast
When, can automatic rejection related data, in not charging to the calculating of average air-conditioning energy valid value；The human and machine interface unit is also equipped with air-conditioning
Can valid value Conversion of measurement unit, the function that curve is checked, historical record is inquired about and auxiliary parameter is checked.
Further, also including current transformer, probe for measuring flow and temperature sensor, the current transformer, stream
Measurement is popped one's head in and temperature sensor passes through removably and the electrical measurement unit, airflow measurement unit and temperature respectively
Measuring unit is attached.
Further, the current transformer, probe for measuring flow and temperature sensor pass through aviation plug and institute respectively
Electrical measurement unit, airflow measurement unit and temperature measurement unit is stated to be attached.
Further, the side of the casing is provided with handle, and the efficiency detector can be made when not using
Suitcase, is convenient for carrying and moves.
Further, the current transformer is split core type current transformer, and the probe for measuring flow is SMD flow
Sensor, the temperature sensor is SMD platinum resistance temperature sensor.
Further, the airflow measurement unit includes supersonic flow measuring device
Relative to prior art, the utility model achieves beneficial technique effect：
(1) the air-conditioning efficiency detector is highly integrated, and whole measuring instrument is light, be easy to carry about with one, and installs and measure
Process is all without destruction main frame and pipeline.
(2) the air-conditioning efficiency detector installs airflow measurement unit and Inlet and outlet water temperature measurement unit in measurement process
Shi Wuxu shuts down, and after being measured, can remove quickly, and whole process is convenient, fast, accomplishes the no shadow of work to main frame
Ring.
(3) the efficiency computing unit of the air-conditioning efficiency detector can filter excessively low and excessively using the means of statistics
Efficiency measured value noise high, eliminates interference and opens the interference of machine, shutdown stage to energy valid value, as far as possible essence to the full extent
Really reflect main frame average energy valid value.
(4) the air-conditioning efficiency detector is applicable to the different cold water main units for using on the market, and measurement process is simply fast
Victory, can immediately arrive at the energy valid value and efficiency evaluation result of cold water main unit.
Brief description of the drawings
Fig. 1 is the structural representation of air-conditioning efficiency detector.
Fig. 2 is the theory diagram of air-conditioning efficiency detector.
Fig. 3 is the Site Detection arrangement block diagram of air-conditioning efficiency detector.
Fig. 4 is the workflow diagram of air-conditioning efficiency detector.
Fig. 5 is the overhaul flow chart of air-conditioning efficiency detector.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, with reference to embodiments to this
Utility model is further elaborated, but the claimed scope of the utility model is not limited to following specific implementations
Example.
Referring to Fig. 1, intelligent air-conditioning efficiency detector disclosed in the present embodiment includes casing 10, is set inside the casing 10
It is equipped with power module 9, electrical measurement unit 4, airflow measurement unit 5, temperature measurement unit 6 and efficiency computing unit 8, the electricity
Phasor measurement unit 4, airflow measurement unit 5 and temperature measurement unit 6 are carried out by holding wire with the efficiency computing unit 8 respectively
Connection；The tank surface is provided with human and machine interface unit 7, and the air-conditioning energy valid value that the efficiency computing unit 8 is calculated shows
In the human and machine interface unit 7.Current transformer 1, probe for measuring flow 2 and temperature sensor 3 are respectively by detachable side
Formula is attached with the electrical measurement unit 4, airflow measurement unit 5 and temperature measurement unit 6.
The utility model has fully demonstrated operation and the convenience for carrying.In view of the installation of the sensor in actually measurement
Dismounting, the connection of measuring apparatus, measurement process are required for as simple as possible and convenience, and whole instrument needs to have portability
Demand, to be easy to carry about with one and move, flow measurement of the present utility model uses SMD flow sensor, whole sensing
The installation of device is freezed without getting angry, without destroying pipeline water route, even without main shut-down system, it is only necessary to by the material of pipeline, interior
The parameters such as external diameter, fluid media (medium) are input in ultrasonic sensor, can automatically calculate mounting distance, according to the distance, will be super
The upstream and downstream sensing paster of acoustic wave flow sensor is fitted in above pipeline.
Temperature survey use SMD platinum resistance temperature sensor, only with by temperature sensor respectively with chilled water Inlet and outlet water
Pipeline is posted, and fastened with stirrup it is solid, whole process without getting angry and freezing by install.
The measurement of electricity uses special hook type current transformer, because the electric power incoming line of cold water main unit is all to use hexagonal
Shape screw is fastened to be installed, if using fixed current transformer, making use of momentum and necessarily take electric power incoming line apart, through the electric current
Transformer, can so cause inefficiency, and main frame to also have to shut down.And in some occasions, due to main frame age ratio
More remote, electric power incoming line fastening screw has different degrees of corrosion, and dismounting inlet wire can be extremely difficult or can not be completed.Using special
Hook type current transformer can easily tackle the situation, and split core type current transformer can be with folding, it is only necessary to by Current Mutual Inductance
Device opens opening, vises electric power incoming line.Whole process is easily simple, it is not necessary to remove screw, it is not necessary to main shut-down system.
Whole portable efficiency detector uses suitcase-type structure, man-machine interface to be embedded on the front panel of cabinet.Other
Fixed apparatus, such as：Ultrasonic flow sensor main part, three-phase intelligent electricity quantity module, efficiency calculate CPU module, set
The part such as stand-by power source is all placed on cabinet inside, makes full use of enclosure interior.
The other parts of this efficiency detector, predominantly movable measurement sensor probe apparatus, its length of cable is more long,
Need to install on the relevant device of air-conditioner host at the scene in measurement, such as three-phase current electricity transformer, ultrasonic flow are passed
The upstream and downstream inductive probe part of sensor, chilled water Inlet and outlet water temp probe part.Detected with efficiency when these parts do not use
Instrument is released state, needs to be connected with efficiency detecting instrument when in use.These probe apparatus and efficiency detector
Coupling part use quick aviation plug, all without instruments such as screwdriver, spanners, whole process is using inserting for the connection of whole sensor
Hair style is connected, and realizes quickly dismounting, is greatly improved operating efficiency.
Whole Portable type central air-conditioning cold water main unit efficiency detecting instrument uses cabinet design, up pacifies with two flank side surfaces
Equipped with rubber handle, when not using, can be convenient for carrying and move as a suitcase.When measurement is needed, only
With in the corresponding joint of plug insertion lower box that will be popped one's head in, each sensor probe is partially installed on corresponding position, such as
Shown in Fig. 3 detection arrangement figures.
Except central air conditioner main machine efficiency measures function, the also built-in some other miscellaneous functions of this measuring instrument.Behaviour
Making personnel can be operated or be checked in man-machine interface, such as Conversion of measurement unit, curve is checked, historical record is inquired about, check it
The function of his auxiliary parameter.
Conversion of measurement unit will can mutually be converted with the two of kW/TON and kW/kW kinds of efficiency units, facilitate operating personnel
Index familiar to calling oneself carries out efficiency measurement.
Curve look facility is to check energy valid value, refrigerating capacity, power consumption, temperature, the trend of flow in graph form, more
Plus the variable condition and trend of interior these parameters of display measuring section of visual pattern.When these parameters exceed threshold value, it is in
During abnormality, also can be clearly identified with red on curve.
Historical record is inquired about, and can both support to be input into the time of starting and ending, and the measurement inquired about within the time period is gone through
The Records of the Historian is recorded, it is also possible to recalled from currently, inquiry historical record several times recently.And support leading with forms such as xls, cvs
Go out, the file after derivation can be stored in USB flash disk, achieved or printed out.
Other auxiliary parameters check including measure inlet/outlet temperature, flow, three-phase current/voltage, frequency, have
Work(power, reactive power, power factor, refrigerating capacity etc., operating personnel can have more complete by these parameters to Host Status
The understanding in face.
Referring to Fig. 3-5, operating process of the present utility model is as follows：
Each sensor and efficiency detector are attached first, it uses quick plug, by them according to efficiency instrument machine
Text prompt on case is docked be plugged one by one.Before detection main frame is started, metering check and correction need to be carried out to efficiency detector,
Specifically have：(1) temperature sensor is calibrated, two temperature sensors and tube wall laminating are tight, sensor and tube wall
Heat conductive silica gel is smeared on veneer, whether two temperature readings of temperature sensor is observed on portable efficiency detector unanimously,
Whether consistent with the data on the panel of main frame contrast the temperature reading, if being all consistent, prove that temperature sensor works
Normally.(2) the flow sensing probe of ultrasonic flow sensor is fitted on tube wall, there is water to flow in pipe, adjustment sensing is visited
The position of head, makes in two planes of the probe in same level, between be mutually separated with the distance of 5-8cm, observe supersonic flow
The instrument face plate of quantity sensor, has numerical value then to illustrate that ultrasonic sensor is working properly.(3) by three-phase split core type current transformer point
Whether the three-way power inlet wire of main frame is not vised, has electric current to show in observation efficiency detector man-machine interface, if showing, with
The operating current of main frame is contrasted, and numerical value unanimously then proves that electric power detection module is normal.
If these are all normal, the detection work of next step can be started, if a certain being adjusted still cannot be just
Often work, then be accomplished by changing or overhauling the detection unit, and repeats above-mentioned proof-reading, until these detection sensors are all just
Often untill work.
These sensors are each installed respectively, temp probe is separately mounted to the freezing of central air-conditioning cold water main unit
, it is necessary to notice that laminating is tight on the water wall of water inlet/outlet, centre is coated with heat conductive silica gel, and with clip by sensor and pipeline
Fix, temperature sensing portion is installation.Then by the inner and outer diameter of chilled water pipeline, tube wall material, fluid media (medium) etc.
It is input into one by one in the menu of ultrasonic flow sensor or is selected, ultrasonic meter can be automatically calculated a locating distance
Be exactly the mounting distance of ultrasonic flow sensor upstream probe and downstream probe from, the distance, by two probes according to this away from
From on chilled water tube wall, installation requirement is similar with temperature sensor, it is necessary to tight, contact of the tube wall with sensor of fitting
Face is coated with supporting contact agent, and two probes need to be arranged on same horizontal surface.Menu item selection in instrument is looked into
Signal intensity is seen, if signal strength values>60, then the ultrasonic flow sensor can with normal work, if being not reaching to 60,
Then need to adjust installation site, or pipeline outer wall of slightly polishing.The measurement sensor of electricity is installed simple, it is only necessary to by pincerlike electricity
The three phase mains inlet wire of the upper main frame of current transformer pincers, but it is noted that correct three phase mains inlet wire must be found,
It is that whole air conditioner cold water main unit is powered that the inlet wire necessarily needs.
After installing, you can carry out efficiency measurement work, detection time length is input on the interface of efficiency detector,
Typically according to different main frames, detection time is generally -2 hours 0.5 hour, it is proposed that not below 0.5 hour, otherwise sample was inclined
It is few, it is likely to result in detection inaccurate.After have input time span, start button is clicked on, efficiency detector is to automatically begin to operation
Detection efficiency, without personnel's manual intervention, all detector automatic runnings during this.
After detection is finished, efficiency detector man-machine interface can point out detection to complete, and all parameters in detection process are all
In storing efficiency detector, and final energy valid value can be shown, the energy valid value is average efficiency.If necessary under different operating modes
Efficiency detection, then need to be manually entered into floor data in efficiency detector, these data include outdoor environment humiture,
Heat exchanger pressure differential, cooling water flow, cooling water turnover coolant-temperature gage, after being input into these parameters, efficiency instrument can form different operating modes
Energy Efficiency Analysis table and efficiency the diagnostic result analysis of point.
Schematic diagram of the present utility model is shown in Fig. 2.Instantaneous stream on probe for measuring flow measurement handpiece Water Chilling Units chilled water pipeline
Amount (L), temperature measurement unit obtain chilled water inflow temperature (T1), chilled water water outlet by SMD platinum sensor measurement
Temperature (T2), calculates the instantaneous refrigerating capacity of large-size air conditioning handpiece Water Chilling Units, then when obtaining measurement by the integrating of instantaneous refrigerating capacity
Between overall refrigerating effect in section.As shown in figure 4, its Computing Principle is as follows:
ΔTInstantaneously=(T1Instantaneously-T2Instantaneously)(℃)；
QInstantaneously=C*LInstantaneously*ΔTInstantaneously(kW)=C*LInstantaneously*(T1Instantaneously-T2Instantaneously)；
QAlways=∑ QInstantaneously
The specific heat 4.1868kW*S/ (kG* DEG C) of C-water；
LInstantaneously- chilled water instantaneous delivery L/S (liter/second)；
ΔTInstantaneously- chilled water Inlet and outlet water transient temperature is poor (DEG C)；
T1Instantaneously- chilled water instant water coming-in temperature (DEG C)；
QInstantaneouslyThe instantaneous refrigerating capacity of-main frame (kW)；
QAlways- main frame overall refrigerating effect (kW)；
Main frame electrical measurement unit is obtained main frame and is existed by three-phase hook type current transformer and three-phase intelligent voltameter, measurement
Use power consumption (P) in this time.So as to calculate the energy valid value (refrigerating capacity/power consumption) of central air conditioner main machine.
PAlways=PT2-PT1
PT1Electricity electric degree (kWh) when-measurement starts；
PT2Electricity electric degree (kWh) at the end of-measurement；
PAlways- total electricity consumption (kWh)；
The average efficiency E of central air conditioner main machineAveragelyComputing formula is as follows：
EAveragely=PAlways/QAlways(kW/kW)；
3.516KW=1TON (USTR cold units made in U.S.A)；
By conversion, can also be by the coefficient of refrigerating performance value in units of kW/kW or the U.S. being converted into units of kW/TON
System can valid value.
Handpiece Water Chilling Units performance efficiency diagnoses computational discrimination method：
The present invention defines performance efficiency index E % to differentiate the quality of handpiece Water Chilling Units equipment performance, and E% is based on the unit
Performance of the design condition with respect to nominal parameter.
The performance efficiency index E %=E of water-cooled cold water main unitDesired reference/EIt is actual* 100%
EDesired reference--- the preferable calculating of-water-cooled cold water main unit can valid value (CPLV), EDesired referenceIt is to be joined with the rated designs of refrigeration machine
On the basis of number, according to actual operating condition condition, deviation is calculated according to thermodynamics perfect gas coefficient of refrigerating performance formula and is drawn,
In normal detection condition range, EDesired referenceReflection be water-cooled cold water main unit optimum state and assume with ideal conditions change
Unanimously.When measurement data is normal, EDesired reference<EIt is actually detected, so, the low energy high of E% intuitively reflects the performance quality of equipment.
EIt is actually detected----actually detected value is obtained by efficiency data monitoring；
Calculated examples explanation：
One detected water cooled chiller, the working condition of rated designs：Chilled water goes out/return water temperature 7 DEG C/12
℃；32 DEG C/37 DEG C of cooling water inlet/outlet temperature；Refrigerating capacity is 500USTR/1758KW, and input power is 325KW；It is actually detected
Three groups of data：
A, chilled water go out/8 DEG C/11 DEG C of return water temperature, 32 DEG C/35 DEG C of cooling water inlet/outlet temperature, efficiency measured value
0.62KW/TON
B, chilled water go out/8 DEG C/12 DEG C of return water temperature, 26 DEG C/30 DEG C of cooling water inlet/outlet temperature, efficiency measured value
0.60KW/TON
C, chilled water go out/9 DEG C/12 DEG C of return water temperature, 25 DEG C/28 DEG C of cooling water inlet/outlet temperature, efficiency measured value
0.55KW/TON
EIt is specified----unit nominal parameter value, refrigerating capacity and power consumption parameter meter can be used when nameplate parameter must not be immediately arrived at
Obtain.
COPIt is specified----unit nominal parameter value, 3.516/COPIt is specified=EIt is specified
KIt is preferable specified--- the preferable coefficient of refrigerating performance of-unit declared working condition, according to thermodynamic principles, preferable coefficient of refrigerating performance formula
For：KIt is preferable specified=Te/ (Tc-Te)
By common design condition：The small temperature difference of evaporator heat exchange during actual motion is 2 DEG C, condenser heat exchange during operation
The small temperature difference is 3 DEG C, then when design rated condition is：Chilled water leaving water temperature is 7 DEG C, when cooling water leaving water temperature is 37 DEG C, Te
Design=273+ (7-2)=278K；Tc design=273+ (37+3)=313K.
KIt is preferable specified=278/35=7.94
ηRefrigerating efficiency----unit refrigerating efficiency value, ηRefrigerating efficiency=COPIt is specified/KIt is preferable specifiedCalculate the machine ηRefrigerating efficiency=0.68.
The relative refrigerating efficiency η of this equipment is calculated by the nominal parameter of upper tableRefrigerating efficiency, acquiescence is in normal measurement model
The relative refrigerating efficiency η of operating point this equipment enclosedRefrigerating efficiencyIt is constant, draw the E% of following actual measurement efficiency.
KActual condition--- the preferable coefficient of refrigerating performance of-unit declared working condition, according to thermodynamic principles, preferable coefficient of refrigerating performance formula
For：KActual condition=Te/ (Tc-Te)
By common design condition：The small temperature difference of evaporator heat exchange during actual motion is 2 DEG C, condenser heat exchange during operation
The small temperature difference is 3 DEG C, and tri- K of operating mode of A, B, C are calculated respectivelyActual condition
COPDesired reference----unit difference operating mode desired reference COP values, COPDesired reference=KActual condition*ηRefrigerating efficiency
EDesired reference----unit difference operating mode desired reference efficiency E values, 3.516/COPDesired reference=EDesired reference
E%---- energy efficiency indexes, E%=EDesired reference/EIt is actually detected* 100%
Another problem to be solved in the utility model is the precision treatment to actually detected average energy valid value.In reality
With and measurement during, the electricity consumption of main frame and refrigeration are all a processes being continually changing, and are become with cold demand, load
The difference of the conditions such as change, external environment humiture, the efficiency of cold water main unit is actually to be in a state for constantly changing,
It is also the unstable numerical value being continually changing, its reference significance and reality thus to cause and measure the real-time energy efficiency value for obtaining
Purposes is limited, also result in the inaccurate of average energy valid value.
And during main frame loading, unloading, or during adjacent main frame starting mode of pump, operation, cause water
Unexpected increasing or power load mutation.Because the change of temperature is a more gentle process, the shape of suddenly change
State can cause the energy valid value calculated by E=P/Q excessive or too small, if by the part can valid value count, with reality
Average energy valid value compared to a certain degree of distortion can be caused.Built-in algorithm, sets flow, temperature in efficiency computing unit
Degree, the threshold value of electricity, when the rate of change of flow, temperature or electricity is too fast, has exceeded the threshold value of these physical quantitys, computing module
Automatically can not charged among the calculating of average efficiency by these data otherwise processeds.Only when these measurement parameters return to threshold value
Under, in the state in normal work, just count among the measurement of average efficiency.
The announcement and teaching of book according to the above description, the utility model those skilled in the art can also be to above-mentioned reality
The mode of applying is changed and changed.Therefore, the utility model is not limited to specific embodiment disclosed and described above, right
Some modifications and changes of utility model should also be as falling into scope of the claims of the present utility model.Although additionally,
Some specific terms have been used in this specification, but these terms are merely for convenience of description, utility model do not constituted
Any limitation.
Claims (6)
1. a kind of intelligent air-conditioning efficiency detector, including casing, it is characterised in that：The box house is provided with power supply mould
Block, electrical measurement unit, airflow measurement unit, temperature measurement unit and efficiency computing unit, the electrical measurement unit, flow
Measuring unit and temperature measurement unit are attached by holding wire with the efficiency computing unit respectively；The tank surface sets
Human and machine interface unit is equipped with, the air-conditioning energy valid value that the efficiency computing unit is calculated is displayed in the human and machine interface unit；
Wherein, the efficiency computing unit sets the threshold value of flow, temperature and electricity, when the change of flow, temperature or electricity is too fast
When, can automatic rejection related data, in not charging to the calculating of average air-conditioning energy valid value；The human and machine interface unit is also equipped with air-conditioning
Can valid value Conversion of measurement unit, the function that curve is checked, historical record is inquired about and auxiliary parameter is checked.
2. a kind of intelligent air-conditioning efficiency detector according to claim 1, it is characterised in that：Also include Current Mutual Inductance
Device, probe for measuring flow and temperature sensor, the current transformer, probe for measuring flow and temperature sensor pass through respectively can
Dismounting mode is attached with the electrical measurement unit, airflow measurement unit and temperature measurement unit.
3. a kind of intelligent air-conditioning efficiency detector according to claim 2, it is characterised in that：The current transformer,
Probe for measuring flow and temperature sensor pass through aviation plug and the electrical measurement unit, airflow measurement unit and temperature respectively
Measuring unit is attached.
4. a kind of intelligent air-conditioning efficiency detector according to claim 1, it is characterised in that：The side peace of the casing
Equipped with handle, the efficiency detector can make suitcase when not using, and be convenient for carrying and move.
5. a kind of intelligent air-conditioning efficiency detector according to claim 2, it is characterised in that：The current transformer is
Split core type current transformer, the probe for measuring flow is SMD flow sensor, and the temperature sensor is SMD platinum electricity
Resistance temperature sensor.
6. a kind of intelligent air-conditioning efficiency detector according to claim any one of 1-5, it is characterised in that：The flow
Measuring unit includes supersonic flow measuring device.
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| CN201621435992.1U CN206291421U (en) | 2016-12-26 | 2016-12-26 | A kind of intelligent air-conditioning efficiency detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043715A (en) * | 2018-10-12 | 2020-04-21 | 广州松下空调器有限公司 | Control method and system of air conditioner and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043715A (en) * | 2018-10-12 | 2020-04-21 | 广州松下空调器有限公司 | Control method and system of air conditioner and air conditioner |
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