CN104019842B - Calibration tool and calibration steps - Google Patents
Calibration tool and calibration steps Download PDFInfo
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- CN104019842B CN104019842B CN201410228984.9A CN201410228984A CN104019842B CN 104019842 B CN104019842 B CN 104019842B CN 201410228984 A CN201410228984 A CN 201410228984A CN 104019842 B CN104019842 B CN 104019842B
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Abstract
The invention discloses a kind of calibration tool and calibration steps, carry out precision calibration for equipment stifled to inspection, wherein calibration tool includes flow-through device, monitoring device and regulation equipment；The outlet of the entrance of flow-through device equipment stifled with inspection is connected, and the outlet of flow-through device is connected with the entrance of monitoring device；Regulation equipment electrically connects with flow-through device, the flow when the fluid that regulation is flowed out by the outlet of the stifled equipment of inspection flows through flow-through device；Monitoring device is arranged on regulation equipment, first-class value during for monitoring and showing that fluid flows through flow-through device；The second value shown according to the stifled equipment of first-class value and inspection, equipment stifled to inspection is calibrated.It flows through flow during flow-through device, the various states of the heat exchanger system of the stifled equipment Inspection of simulation inspection by regulation equipment regulated fluid, is effectively improved accuracy when examining stifled equipment Inspection heat exchanger system and effectiveness.
Description
Technical field
The present invention relates to household electrical appliance detection field, particularly relate to a kind of calibration tool and calibration steps.
Background technology
Effectively reduce refrigerant charge owing to small-pipe diameter heat exchanger (caliber≤5mm) has and reduce heat exchange
The advantage of device cost, therefore, air conditioner industry uses small-pipe diameter heat exchanger the most mostly.But, pipe with small pipe diameter changes
Hot device is less than normal due to caliber size, strengthening in wire bonding difficulty when causing it to be applied in air-conditioner.Giving birth to
The phenomenon that weldering is stifled easily occurs during product, affects refrigeration or the heating effect of air-conditioner complete machine.
For stopping to weld stifled products application in air-conditioner, it will usually increase the stifled equipment of inspection to pipe with small pipe diameter at production line
Heat exchanger detects.Before using inspection stifled equipment that small-pipe diameter heat exchanger is detected, in order to ensure inspection
The accuracy of stifled equipment Inspection and effectiveness, need equipment stifled to inspection to calibrate.It is presently used for calibration inspection
The frock of stifled equipment is that various small-pipe diameter heat exchanger is in complete stifled, half stifled and 1/3rd exemplars when blocking up.
Exemplar owing to using be according to small-pipe diameter heat exchanger be in complete stifled, half block up and pipe time 1/3rd block up
Prepared by footpath, there is certain error in preparation process.Therefore, this exemplar has on flow value and accuracy
Bigger error, have impact on the accuracy of the stifled equipment Alignment result of inspection.Further, for calibrating the sample of the stifled equipment of inspection
Part volume is relatively big, and quantity is more, is unfavorable for management and uses.
Summary of the invention
Based on this, it is necessary to for the accuracy and not affecting calibration result when using the exemplar calibration stifled equipment of inspection
It is beneficial to management and the problem used, it is provided that a kind of calibration tool and calibration steps.
For realizing a kind of calibration tool that the object of the invention provides, carry out precision calibration for equipment stifled to inspection,
Including flow-through device, monitoring device and regulation equipment；
The outlet that the entrance of described flow-through device blocks up equipment with described inspection is connected, the outlet of described flow-through device with
The entrance of described monitoring device connects；
Described regulation equipment electrically connects with described flow-through device, is blocked up the outlet stream of equipment by described inspection for regulation
The fluid gone out flows through flow during described flow-through device；
Described monitoring device is arranged on described regulation equipment, is used for monitoring and show that described fluid flows through described
First-class value during flow-through device；
Block up, according to described first-class value and described inspection, the second value that equipment shows, equipment is blocked up in described inspection
Calibrate.
Wherein in an embodiment, described flow-through device is electric expansion valve, and described regulation equipment is electronics
Expansion valve opening actuator；
Described electronic expansion valve opening actuator electrically connects with described electric expansion valve, is used for controlling described electronics
Expansion valve is opened with default opening value, regulates flow when described fluid flows through described electric expansion valve.
Wherein in an embodiment, described monitoring device is effusion meter；Described effusion meter is provided with flow and shows
Show panel, be used for showing described first-class value.
Wherein in an embodiment, described electronic expansion valve opening actuator arranges valve body valve position panel,
For showing the aperture of described electric expansion valve.
Wherein in an embodiment, described valve body valve position panel is made up of LED charactron.
Wherein in an embodiment, the connection of the outlet of equipment is blocked up in the entrance of described flow-through device and described inspection,
And the connection of the outlet of described flow-through device and the entrance of described monitoring device is all connected by metal tube.
Accordingly, operation principle based on any of the above-described kind of calibration tool, present invention also offers a kind of calibration
Method, comprises the steps:
The fluid that the regulation of regulation equipment is flowed out by the outlet of the stifled equipment of inspection flows through flow during flow-through device；
Monitoring device is monitored and shows first-class value when described fluid flows through described flow-through device；
Block up, according to described first-class value and described inspection, the second value that equipment shows, equipment is blocked up in described inspection
Calibrate.
Wherein in an embodiment, described flow-through device is electric expansion valve, and described monitoring device is flow
Meter, and when described regulation equipment is electronic expansion valve opening actuator, comprise the steps:
Regulate described electronic expansion valve opening actuator, control described electric expansion valve and open with default opening value；
Described effusion meter monitor in real time and show when described fluid flows through described electric expansion valve described first-class
Value；
The described second value that equipment shows is blocked up, it is judged that described inspection according to described first-class value and described inspection
The precision of stifled equipment is the most qualified；
If it is not, then regulate described inspection to block up the bleed pressure size of equipment, until the precision that equipment is blocked up in described inspection is closed
Lattice.
Wherein in an embodiment, described block up the institute that equipment shows according to described first-class value and described inspection
State second value, it is judged that the precision that equipment is blocked up in described inspection is the most qualified, comprises the steps:
Detect described first-class value and described second value is all the most consistent with normal stream value；
The precision that equipment is blocked up in the most described inspection is qualified；
If it is not, the precision that equipment is blocked up in the most described inspection is defective.
Wherein in an embodiment, when judge described inspection block up the precision of equipment defective time, also include as follows
Step:
Detect described inspection to block up the pipeline of equipment and whether leak gas；
The most then stop described inspection and block up equipment, change described inspection and block up the described pipeline of equipment.
Having the beneficial effect that by by the outlet of stifled to the entrance of flow-through device and inspection equipment even of above-mentioned calibration tool
Connecing, the outlet of flow-through device is connected with the entrance of monitoring device so that fluid flows through inspection stifled equipment, stream successively
Logical equipment and monitoring device.During fluid flows through the stifled equipment of inspection, flow-through device and monitoring device successively,
Flow during flow-through device is flowed through, with the heat exchanger system of the stifled equipment Inspection of simulation inspection by regulation equipment regulated fluid
(state of heat exchanger system includes entirely blocking up state, half stifled state, 1/3rd blocks up state and micro-for the state of system
Stifled state).And monitored in real time by monitoring device and show first-class value when fluid flows through flow-through device, root
When flowing through the stifled equipment of inspection according to this first-class value and fluid, the second value that the stifled equipment of inspection shows, it is judged that inspection
The precision of stifled equipment is the most qualified, carries out examining the precision calibration of stifled equipment.
It flows through flow during flow-through device, the stifled equipment inspection of simulation inspection accurately by regulation equipment regulated fluid
The various states of the heat exchanger system surveyed；And monitored by monitoring device and the fluid that shows flows through flow-through device
Time first-class value, with monitor fluid flow through inspection stifled equipment time, the second value that the stifled equipment of inspection shows
Accuracy, is effectively improved accuracy when examining stifled equipment Inspection heat exchanger system and effectiveness, solves
The problem affecting the accuracy of calibration result when using the exemplar stifled equipment of calibration inspection.
Further, regulation equipment regulated fluid flow during flow-through device is flowed through, it is possible to simulate accurately and change
The various states of hot device system, such as: entirely block up state, half stifled state, 1/3rd block up state and micro-stifled state,
Instead of the use of multiple exemplar, not only save the cost making exemplar, also help the pipe of calibration tool
Reason and use.
Accompanying drawing explanation
Fig. 1 is the electric expansion valve schematic diagram in calibration tool one specific embodiment；
Fig. 2 is the electronic expansion valve opening actuator schematic diagram in calibration tool one specific embodiment；
Fig. 3 is the effusion meter schematic diagram in calibration tool one specific embodiment；
Fig. 4 is calibration tool one specific embodiment schematic diagram；
Fig. 5 is calibration tool one specific embodiment schematic diagram when calibrating；
Fig. 6 is calibration steps one specific embodiment flow chart.
Detailed description of the invention
For making technical solution of the present invention clearer, below in conjunction with drawings and the specific embodiments the present invention done into
One step describes in detail.
A kind of calibration tool, carries out precision calibration, including flow-through device, monitoring device for equipment stifled to inspection
With regulation equipment.
The outlet of the entrance of flow-through device equipment stifled with inspection is connected, and the outlet of flow-through device enters with monitoring device
Mouth connects so that fluid flows through the stifled equipment of inspection, flow-through device and monitoring device successively.
Regulation equipment electrically connects with flow-through device, and the fluid flowed out by the outlet of the stifled equipment of inspection for regulation flows through
Flow during flow-through device, with the various states of the heat exchanger system of the stifled equipment Inspection of simulation inspection, such as: entirely block up
State, half stifled state, 1/3rd block up state or micro-stifled state.
Monitoring device is arranged on regulation equipment, first during for monitoring and showing that fluid flows through flow-through device
Flow value.
The second value shown according to the stifled equipment of first-class value and inspection, equipment stifled to inspection is calibrated.
Owing to heat exchanger system is small-pipe diameter heat exchanger (general caliber=5mm), therefore it is being welded to electricity
Easily occur during gas equipment welding stifled phenomenon, cause heat exchanger system exist complete stifled state, half stifled state, three points
One of one or more in stifled state and micro-stifled state.In order to avoid the heat exchanger system in electrical equipment is
Complete stifled state, half stifled state, 1/3rd block up state or micro-stifled state, generally use the stifled equipment of inspection to welding
Heat exchanger system to electrical equipment detects.Before detection, it is necessary first to the precision of equipment stifled to inspection is entered
Row calibration.
Equipment stifled to inspection calibrates used calibration tool, by arranging regulation equipment with regulated fluid stream
Flow when flow-through device, simulates the various states of heat exchanger system accurately.And will prison by monitoring device
First-class value when the fluid measured flows through flow-through device shows in real time, with reach monitor fluid flow through
During the stifled equipment of inspection, the purpose of the accuracy of the second value that the stifled equipment of inspection shows, and then carry out examining stifled equipment
Calibration.It is effectively improved stability and the accuracy of the stifled equipment Alignment of inspection, solves existing employing sample
The problem affecting calibration result accuracy during the stifled equipment of part calibration inspection.
Further, flowed through the flow of flow-through device by regulation equipment regulated fluid, simulate heat exchanger system
Various states, it is to avoid the phenomenon that employing multiple exemplar equipment stifled to inspection is calibrated, reduce make multiple
While the cost of exemplar, it is simple to the management of calibration tool and use.
As a kind of embodiment, flow-through device can be electric expansion valve, and regulation equipment is then electronic expansion
Valve opening actuator；Monitoring device can be effusion meter.Following example are all with electric expansion valve, electronic expansion
As a example by calibration tool after valve opening actuator and effusion meter assembling, calibration tool is illustrated.
See Fig. 1 and Fig. 2, respectively the signal of the electric expansion valve 100 in calibration tool one specific embodiment
Figure and the schematic diagram of electronic expansion valve opening actuator 200.Wherein, electric expansion valve 100 includes electromagnetic wire
Circle 110.After solenoid 110 is energized, according to the size of the voltage being carried in solenoid 110, control
The size of the pin valve opening of electric expansion valve 100, and then regulate the stream of the fluid flowing through electric expansion valve 100
Amount.
Wherein, the size of voltage of solenoid 110 it is carried in by electronic expansion valve opening actuator 200
It is controlled.By operation setting control button 210 on electronic expansion valve opening actuator 200 so that
Electric expansion valve 100 is opened with default opening value, reaches stream when regulated fluid flows through electric expansion valve 100
The purpose of amount, simulates the various states of heat exchanger system accurately.As:
When the stifled equipment of inspection is for detecting the heat exchanger system in air conditioning system, its fluid being passed through is cold-producing medium.
By regulation electronic expansion valve opening actuator 200 so that when electric expansion valve 100 is opened with the first preset value,
Now regulation flows through the flow of the cold-producing medium of electric expansion valve 100 and is in complete stifled state for simulation heat exchanger system
Time cold-producing medium flow.In this case, first-class value close to or equal to 0L/s (i.e. liter/second), its
The first corresponding preset value value is 250.
When regulation electronic expansion valve opening actuator 200 so that electric expansion valve 100 is opened with the second preset value
Time, the flow of the cold-producing medium flowing through electric expansion valve 100 now regulated is in half for simulation heat exchanger system
The flow of cold-producing medium during stifled state.Now, first-class value is 70L/s, the second preset value of its correspondence
Value is 150.
When regulation electronic expansion valve opening actuator 200 so that electric expansion valve 100 is opened with the 3rd preset value
Time, the flow of the cold-producing medium flowing through electric expansion valve 100 now regulated is in three for simulation heat exchanger system
The flow of/mono-cold-producing medium when blocking up state.Now, first-class value is 95L/s, and the 3rd of its correspondence is pre-
If the value of value is 50.
When regulation electronic expansion valve opening actuator 200 so that electric expansion valve 100 is opened with the 4th preset value
Time, now the flow of the cold-producing medium that regulation flows through electric expansion valve 100 is that heat exchanger system is in micro-stifled state
Time cold-producing medium flow.Now, first-class value is 120L/s, and the value of the 4th preset value of its correspondence is
20。
By regulation electronic expansion valve opening actuator 200, and then the aperture of regulation electric expansion valve 100, come
The various states of simulation heat exchanger system, such as: entirely block up state, half stifled state, 1/3rd block up state and micro-
Stifled state, is effectively improved accuracy when equipment stifled to inspection is calibrated and effectiveness.
Wherein in an embodiment, electronic expansion valve opening actuator 200 can be provided with valve body valve position
Panel 220, this valve body valve position panel 220 can be by LED (Light Emitting Diode) charactron group
Become.When operation controls the aperture that button 210 regulates electric expansion valve 100, valve body valve position panel 220
The aperture that display electric expansion valve 100 is opened in real time.Electricity is shown in real time by valve body valve position panel 220
The aperture that sub-expansion valve 100 is opened, it is possible to whether the aperture of real time inspection electric expansion valve 100 reaches default
Opening value, it is ensured that the accuracy of the aperture that electric expansion valve 100 is opened, and then ensure that simulation heat exchanger
The accuracy of the various state of system.
See Fig. 3, for the structural representation of the effusion meter of calibration tool one specific embodiment.Wherein, effusion meter
300 are provided with flow indication panel 310, and by flow indication panel 310, display effusion meter 300 is supervised in real time
The first-class value of the fluid flowing through electric expansion valve 100 measured, it is simple to monitoring fluid flows through the stifled equipment of inspection
Time, the accuracy of the second value that the stifled equipment of inspection shows.As:
When the state that the first-class value of flow indication panel 310 display is simulation heat exchanger system is complete stifled shape
During the flow value of fluid during state, the second value that the stifled equipment of now inspection shows should be consistent with first-class value.
If inconsistent, show that the precision examining stifled equipment is inadequate, need the bleed pressure size of the stifled equipment of regulation inspection,
Whether the pipeline of the stifled equipment of inspection leaks gas side by side.If consistent, show that the precision examining stifled equipment meets heat exchanging
Device system carries out the standard detected, then can carry out next step operation (detection heat exchanger system).
In like manner, block up when the first-class value of flow indication panel 310 display is in half for simulation heat exchanger system
State, 1/3rd when blocking up flow value corresponding when state or micro-stifled state, by the monitoring inspection of first-class value
The principle of the second value accuracy that stifled equipment shows is same as above.
See Fig. 4 and Fig. 5, respectively the schematic diagram of calibration tool one specific embodiment and calibration process schematic diagram.
Concrete, the process using calibration tool one specific embodiment equipment stifled to inspection to calibrate is:
First, by the outlet 410 of stifled to the entrance of the electric expansion valve 100 in calibration tool and inspection equipment 400
Connect.Wherein, the connection of the outlet 410 of the entrance of electric expansion valve 100 equipment 400 stifled with inspection is pipeline
Connect；And the outlet of electric expansion valve 100 is as the connection of the entrance of effusion meter 300 in calibration tool
Connect for pipeline.The connecting tube used can be metal tube, such as: copper pipe.
After the outlet 410 of stifled to the entrance of electric expansion valve 100 and inspection equipment 400 being connected, open school
The switch 500 of quasi-frock, and start the stifled equipment 400 of inspection.
Control button 210 on operation electronic expansion valve opening actuator 200, makes opening of electric expansion valve 100
Angle value (opening value of valve body valve position panel 220 display), for presetting opening value, simulates heat exchanger system
Various states (entirely block up state, half stifled state, 1/3rd block up state and micro-stifled state).Meanwhile, contrast
The first-class value of flow indication panel 310 display of effusion meter 300 and the second of inspection stifled equipment 400 display
Flow value is all the most consistent with normal stream value, and then judges that the precision of the stifled equipment 400 of inspection is the most qualified.
It should be noted that normal stream value is heat exchanger system be respectively at complete stifled state, half stifled state,
1/3rd when blocking up state and micro-stifled state, the flow value of the fluid that the stifled equipment of corresponding inspection flows through.
When the precision judging the stifled equipment 400 of inspection is defective, i.e. the flow indication panel 310 of effusion meter 300 shows
The first-class value shown is inconsistent with normal stream value, or second value and the mark of equipment 400 display is blocked up in inspection
When quasi-flow value is inconsistent, need the bleed pressure size on the stifled equipment 400 of regulation inspection, and equipment stifled to inspection
The pipeline gas leakage situation of 400 is investigated.
When the pipeline stifled equipment 400 being detected exists gas leak phenomenon, change and leak gas on the stifled equipment 400 of inspection
Pipeline after, the bleed pressure size of the stifled equipment 400 of regulation inspection, and re-operate electronic expansion valve opening and adjust
Control button 210 on joint device 200, makes the opening value of electric expansion valve 100 for presetting opening value, examines
The calibration of stifled equipment 400.
When the pipeline stifled equipment 400 being detected does not exists gas leak phenomenon, the stifled equipment 400 of inspection the most only need to be regulated
Bleed pressure size, and re-operate the control button 210 on electronic expansion valve opening actuator 200, make
The opening value of electric expansion valve 100, for presetting opening value, carries out examining the calibration of stifled equipment 400, until inspection is stifled
Till the precision of equipment 400 is qualified.
The first-class value equipment 400 stifled with inspection shown when the flow indication panel 310 of effusion meter 300 shows
Second value all consistent with normal stream value time, then judge that the stifled equipment precision of inspection is qualified, under can carrying out
Single stepping (detection heat exchanger system), so far completes whole inspection and blocks up the calibration of equipment.
By the electronic expansion valve opening actuator in calibration tool and effusion meter, simulation heat exchanger system accurately
The complete stifled state of system, half stifled state, 1/3rd block up state and micro-stifled state etc., be effectively improved inspection stifled
The precision of equipment, it is ensured that accuracy when the stifled equipment of inspection detects.
As a calibration tool being embodied as, use electronic expansion valve opening actuator regulation electric expansion valve
Aperture, simulate the various states of heat exchanger system accurately.Meanwhile, the flow indication face of effusion meter is used
The accuracy of the flow of the fluid that the digital display function stifled equipment of monitoring inspection of plate shows, thus improve the stifled equipment of inspection
Stability and accuracy.Further, the outward appearance of calibration tool is optimized, it is simple to the putting and making of calibration tool
With.
Accordingly, operation principle based on any of the above-described kind of calibration tool, present invention also offers a kind of calibration
Method.Operation principle phase due to the calibration tool that the calibration steps principle of present invention offer provides with the present invention
With or approximation, therefore repeat part, repeat no more.
See Fig. 6, as the calibration steps of a specific embodiment, comprise the steps:
Step S100, when the fluid that the regulation of regulation equipment is flowed out by the outlet of the stifled equipment of inspection flows through flow-through device
Flow.
Step S200, monitoring device is monitored and shows first-class value when fluid flows through flow-through device.
Step S300, the second value shown according to the stifled equipment of first-class value and inspection, equipment stifled to inspection enters
Row calibration.
Concrete, flow-through device is electric expansion valve, and monitoring device is effusion meter, and regulation equipment is electronics
During expansion valve opening actuator, comprise the steps:
Step S100 ', regulate electronic expansion valve opening actuator, control electric expansion valve and beat with default opening value
Open.
Step S200 ', effusion meter is monitored in real time and shows first-class value when fluid flows through electric expansion valve.
Step S300 ', the second value shown according to the stifled equipment of first-class value and inspection, it is judged that the stifled equipment of inspection
Precision the most qualified；If it is not, then perform step S400 ', the most then control the stifled equipment of inspection and detect.
Step S400 ', the bleed pressure size of the stifled equipment of regulation inspection, until the precision of the stifled equipment of inspection is qualified.
Wherein in an embodiment, step S300 ', second shown according to the stifled equipment of first-class value and inspection
Flow value, it is judged that the precision of the stifled equipment of inspection is the most qualified, comprises the steps:
Step S310 ', detect first-class value and second value is all the most consistent with normal stream value；If
It is that then the precision of the stifled equipment of inspection is qualified, can perform step S320 '；If it is not, then the precision of the stifled equipment of inspection does not conforms to
Lattice, therefore perform step S400 '.
Step S320 ', control the stifled equipment of inspection and carry out examining stifled detection.
Step S400 ', the bleed pressure size of the stifled equipment of regulation inspection.
Wherein in an embodiment, when the precision judging the stifled equipment of inspection is defective, also comprise the steps:
Step S400 ", whether the pipeline of the stifled equipment of detection inspection leaks gas, the most then perform step S410；If
No, the most only need to perform step S400 '.
Step S410, stops the stifled equipment of inspection, changes the pipeline of the stifled equipment of inspection.
As the calibration steps of a specific embodiment, flowed out by the outlet of the stifled equipment of inspection by regulation equipment regulation
Fluid flow when flowing through flow-through device, the heat exchanger system that the stifled equipment of simulation inspection accurately is detected each
Kind of state, such as: entirely block up state, half stifled state, 1/3rd block up state or micro-stifled state.And set by monitoring
Standby monitoring also demonstrates first-class value when fluid flows through flow-through device, monitors first-class value and fluid stream
When inspection stifled equipment, the accuracy of the second value that the stifled equipment of inspection shows, the precision of equipment stifled to inspection is carried out
Calibration.
It flows through flow during flow-through device by regulation equipment regulated fluid, to simulate each of heat exchanger system
Kind of state, it is to avoid existing employing exemplar carries out examining the phenomenon that the calibration time error of stifled equipment is bigger, prevents
Production process causes more greatly, because of the stifled equipment precision calibration error of inspection, the outflow that there is the product of the stifled phenomenon of weldering.
It is effectively improved accuracy and effectiveness that equipment stifled to inspection is calibrated, it is achieved that equipment stifled to inspection is carried out
The upgrading of calibration and optimization, improve the accuracy of the stifled equipment Inspection of inspection.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (10)
1. a calibration tool, carries out precision calibration for equipment stifled to inspection, it is characterised in that include circulation
Equipment, monitoring device and regulation equipment；
The outlet that the entrance of described flow-through device blocks up equipment with described inspection is connected, the outlet of described flow-through device with
The entrance of described monitoring device connects；
Described regulation equipment electrically connects with described flow-through device, is blocked up the outlet stream of equipment by described inspection for regulation
The fluid gone out flows through flow during described flow-through device, simulates described inspection and blocks up the heat exchanger system of equipment Inspection
State；
Wherein, the state of described heat exchanger system includes entirely blocking up state, half stifled state, 1/3rd blocks up state
With micro-stifled state；
Described monitoring device is arranged on described regulation equipment, is used for monitoring and show that described fluid flows through described
First-class value during flow-through device；
Block up, according to described first-class value and described inspection, the second value that equipment shows, equipment is blocked up in described inspection
Calibrate.
Calibration tool the most according to claim 1, it is characterised in that described flow-through device is that electronics is swollen
Swollen valve, described regulation equipment is electronic expansion valve opening actuator；
Described electronic expansion valve opening actuator electrically connects with described electric expansion valve, is used for controlling described electronics
Expansion valve is opened with default opening value, regulates flow when described fluid flows through described electric expansion valve.
Calibration tool the most according to claim 1 and 2, it is characterised in that described monitoring device is stream
Gauge；Described effusion meter is provided with flow indication panel, is used for showing described first-class value.
Calibration tool the most according to claim 2, it is characterised in that described electronic expansion valve opening is adjusted
Joint device arranges valve body valve position panel, for showing the aperture of described electric expansion valve.
Calibration tool the most according to claim 4, it is characterised in that described valve body valve position panel
It is made up of LED charactron.
Calibration tool the most according to claim 1, it is characterised in that the entrance of described flow-through device with
The connection of the outlet of equipment is blocked up in described inspection, and the entrance of the outlet of described flow-through device and described monitoring device
Connection all connected by metal tube.
7. a calibration steps, it is characterised in that use the calibration work described in any one of claim 1 to 6
Fill equipment stifled to inspection to calibrate, comprise the steps:
The fluid that the regulation of regulation equipment is flowed out by the outlet of the stifled equipment of inspection flows through flow during flow-through device, simulation
The state of the heat exchanger system of equipment Inspection is blocked up in described inspection；
Wherein, the state of described heat exchanger system includes entirely blocking up state, half stifled state, 1/3rd blocks up state
With micro-stifled state；
Monitoring device is monitored and shows first-class value when described fluid flows through described flow-through device；
Block up, according to described first-class value and described inspection, the second value that equipment shows, equipment is blocked up in described inspection
Calibrate.
Calibration steps the most according to claim 7, it is characterised in that described flow-through device is that electronics is swollen
Swollen valve, described monitoring device is effusion meter, and when described regulation equipment is electronic expansion valve opening actuator,
Comprise the steps:
Regulate described electronic expansion valve opening actuator, control described electric expansion valve and open with default opening value；
Described effusion meter monitor in real time and show when described fluid flows through described electric expansion valve described first-class
Value；
The described second value that equipment shows is blocked up, it is judged that described inspection according to described first-class value and described inspection
The precision of stifled equipment is the most qualified；
If it is not, then regulate described inspection to block up the bleed pressure size of equipment, until the precision that equipment is blocked up in described inspection is closed
Lattice.
Calibration steps the most according to claim 8, it is characterised in that described according to described first flow
The described second value that equipment shows is blocked up in value and described inspection, it is judged that the precision that equipment is blocked up in described inspection is the most qualified,
Comprise the steps:
Detect described first-class value and described second value is all the most consistent with normal stream value；
The precision that equipment is blocked up in the most described inspection is qualified；
If it is not, the precision that equipment is blocked up in the most described inspection is defective.
Calibration steps the most according to claim 8 or claim 9, it is characterised in that when judging that described inspection is blocked up
When the precision of equipment is defective, also comprise the steps:
Detect described inspection to block up the pipeline of equipment and whether leak gas；
The most then stop described inspection and block up equipment, change described inspection and block up the described pipeline of equipment.
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| CN201410228984.9A CN104019842B (en) | 2014-05-27 | 2014-05-27 | Calibration tool and calibration steps |
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| CN201410228984.9A CN104019842B (en) | 2014-05-27 | 2014-05-27 | Calibration tool and calibration steps |
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| CN104019842B true CN104019842B (en) | 2016-08-31 |
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| CN114393974A (en) * | 2022-01-24 | 2022-04-26 | 重庆邮电大学 | Control method for electronic expansion valve of automobile heat pump air conditioning system |
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| US5251469A (en) * | 1991-04-29 | 1993-10-12 | Rockwell International Corporation | Calibration system |
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