CN104374128B - Coolant injection device - Google Patents
Coolant injection device Download PDFInfo
- Publication number
- CN104374128B CN104374128B CN201410566944.5A CN201410566944A CN104374128B CN 104374128 B CN104374128 B CN 104374128B CN 201410566944 A CN201410566944 A CN 201410566944A CN 104374128 B CN104374128 B CN 104374128B
- Authority
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- China
- Prior art keywords
- electromagnetic valve
- chip microcomputer
- coolant injection
- pressure
- coolant
- Prior art date
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- 239000002826 coolant Substances 0.000 title claims abstract description 127
- 238000002347 injection Methods 0.000 title claims abstract description 77
- 239000007924 injection Substances 0.000 title claims abstract description 77
- 239000003507 refrigerant Substances 0.000 claims abstract description 52
- 239000006200 vaporizer Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 86
- 229910052757 nitrogen Inorganic materials 0.000 claims description 44
- 230000002159 abnormal effect Effects 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 6
- 230000000977 initiatory effect Effects 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 238000010025 steaming Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 150000002829 nitrogen Chemical class 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/005—Service stations therefor
Abstract
The invention discloses a kind of coolant injection device, including single-chip microcomputer (100), multichannel filling machine (200) and refrigerant pipe (300), multichannel filling machine (200) connects refrigerant pipe (300) and is filled vaporizer (01).Electric expansion valve (310), the first electromagnetic valve (320), heat exchanger (330), gas-liquid separator (340), the first pressure transducer (350), the second electromagnetic valve (360), the second pressure transducer (370), first-class gauge (380) and the 3rd electromagnetic valve (390) it is provided with on refrigerant pipe (300)；Multichannel filling machine (200), electric expansion valve (310), the first electromagnetic valve (320), heat exchanger (330), the first pressure transducer (350), the second electromagnetic valve (360), the second pressure transducer (370), first-class gauge (380) and the 3rd electromagnetic valve (390) electrically connect with single-chip microcomputer (100) respectively.Its fill various informative, speed is fast, precision is high, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to automation control area, particularly relate to a kind of for evaporating to the indoor set of air-conditioner
Device fills the coolant injection device of coolant.
Background technology
When the vaporizer of air conditioner room unit is carried out quality inspection, it will usually enter to the internal coolant that fills of vaporizer
Row leak detection.The coolant injection device that traditional air conditioner room unit vaporizer leak detection is used, is usually cold
Installing an air relief valve on matchmaker's pipeline, the high-pressure liquid coolant in pipeline directly enters after this air relief valve blood pressure lowering and steams
Send out inside device, indoor machine evaporation is filled.
The coolant injection device that traditional air conditioner room unit vaporizer leak detection is used, once can only fill one
Plant specific coolant, fill form single；Coolant pressure and flow that it is filled are uncontrollable, fill precision
Relatively low, cause the significant wastage of resource；And filled is generally all liquid refrigerants, due to liquid refrigerants
Charging amount relatively big, be discharged into after vaporizer has been hunted leak in outside air, atmospheric pollution is serious.
Summary of the invention
Based on this, it is necessary to for defect and the deficiency of prior art, it is provided that a kind of filled precision is high, form
Various, automatically quickly can fill gaseous state to the indoor machine evaporation of air-conditioner the most according to demand or liquid is different
The coolant injection device of type coolant.
The coolant injection device provided for realizing the object of the invention, including for steaming to the indoor set of air-conditioner
Send out device and fill coolant, including single-chip microcomputer, multichannel filling machine and refrigerant pipe；
Described multichannel filling machine respectively with the outlet of described refrigerant pipe and filled the self-styled interface of vaporizer
Connect, it is possible to the coolant injection in described refrigerant pipe is filled the inside of vaporizer to described；
Described multichannel filling machine also electrically connects with described single-chip microcomputer, it is possible under the control of described single-chip microcomputer with
Described departed from by the self-styled interface filling vaporizer；
Along the flow direction of the coolant in described refrigerant pipe, described refrigerant pipe is disposed with electronic expansion
Valve, the first electromagnetic valve, heat exchanger, gas-liquid separator, the first pressure transducer, the second electromagnetic valve, second
Pressure transducer, first-class gauge and the 3rd electromagnetic valve；
Described electric expansion valve, the first electromagnetic valve, heat exchanger, the first pressure transducer, the second electromagnetic valve,
Second pressure transducer, first-class gauge and the 3rd electromagnetic valve electrically connect with described single-chip microcomputer respectively.
Wherein in an embodiment, the porch of described refrigerant pipe is additionally provided with device for drying and filtering.
Wherein in an embodiment, the coolant injection device of the present invention also includes that coolant injection abnormal alarm fills
Put；
Described coolant injection anomaly alarming device electrically connects with described single-chip microcomputer；
During coolant injection, when described second pressure transducer detects described coolant in Preset Time
When pressure change in pipeline is more than default coolant change value of pressure, coolant injection described in described Single-chip Controlling
Anomaly alarming device carries out coolant injection abnormal alarm.
Wherein in an embodiment, the coolant injection device of the present invention also includes vacuum lead；
The initiating terminal of described vacuum lead is connected with described multichannel filling machine, and its end is provided with vacuum pump,
Vacuum buffer tank, vacuometer sensor and the 4th electromagnetic valve it is provided with between its initiating terminal and end；
Described vacuum pump, vacuometer sensor and the 4th electromagnetic valve electrically connect with described single-chip microcomputer respectively.
Wherein in an embodiment, the coolant injection device of the present invention also includes vacuum anomaly alarming device；
Described vacuum anomaly alarming device electrically connects with described single-chip microcomputer；
In vacuum, presetting inside described vacuum lead when described vacuometer sensor detects
When not arriving setting vacuum in the time, vacuum anomaly alarming device described in described Single-chip Controlling is carried out very
Reciprocal of duty cycle abnormal alarm.
Wherein in an embodiment, the coolant injection device of the present invention also includes nitrogen pipeline；
The outlet of described nitrogen pipeline is connected with described multichannel filling machine；
The 3rd pressure transducer, second gauge and the 5th electromagnetic valve it is provided with on described nitrogen pipeline；
Described 3rd pressure transducer, second gauge, the 5th electromagnetic valve electrically connect with described single-chip microcomputer respectively.
Wherein in an embodiment, the coolant injection device of the present invention also includes that nitrogen pressure abnormal alarm fills
Put；
Described nitrogen pressure anomaly alarming device electrically connects with described single-chip microcomputer；
During nitrogen fills, when described 3rd pressure transducer detects the pressure in described nitrogen pipeline
Value is less than when presetting nitrogen pressure force value, and nitrogen pressure anomaly alarming device described in described Single-chip Controlling carries out nitrogen
Atmospheric pressure abnormal alarm.
Wherein in an embodiment, described multichannel filling machine includes that multichannel fills rifle and compressed air piping；
Described multichannel fill rifle respectively with described refrigerant pipe, vacuum lead, nitrogen pipeline and described quilt
The self-styled interface filling vaporizer connects；
Described compressed air piping fills the driving cylinder of rifle and is connected with described multichannel, is provided with the 4th pressure
Force transducer and the 6th electromagnetic valve；
Described 4th pressure transducer and described 6th electromagnetic valve electrically connect with described single-chip microcomputer respectively；When described
When described in Single-chip Controlling, the 6th electromagnetic valve band conducts, the compressed air in described compressed air piping flows to
Described multichannel fills the driving cylinder of rifle, drives described multichannel to fill rifle and departs from and described filled the self-styled of vaporizer
Interface.
Wherein in an embodiment, the coolant injection device of the present invention also includes the abnormal report of compressed air pressure
Alarm device；
Described compressed air pressure anomaly alarming device electrically connects with described single-chip microcomputer；
In described multichannel fills rifle work process, fill default when described 4th pressure transducer detects
The force value that rifle comes off in the time in described compressed air piping is less than when presetting compressed air pressure value, described
Compressed air pressure anomaly alarming device described in Single-chip Controlling is compressed abnormal air pressure and reports to the police.
Wherein in an embodiment, described refrigerant pipe is multiple, multiple described refrigerant pipes respectively with institute
State multichannel filling machine to connect.
Beneficial effects of the present invention: the coolant injection device that the present invention provides is many by arranging Single-chip Controlling
Road filling machine and connected refrigerant pipe, it is achieved that quantitative, the level pressure of gaseous state and liquid refrigerants are filled
Note.Liquid refrigerants can be converted into gaseous coolant according to concrete demand during filling and fill by it,
And fill various informative, and filling speed fast, precision is high, is greatly saved coolant consumption, energy-conserving and environment-protective.
Accompanying drawing explanation
In order to make the purpose of the coolant injection device of the present invention, technical scheme and advantage clearer, with
The lower concrete drawings and the specific embodiments of combination, are further elaborated to the coolant injection device of the present invention.
Fig. 1 is the structural representation of an embodiment of the coolant injection device of the present invention；
Fig. 2 is the structural representation of another embodiment of the coolant injection device of the present invention；
Fig. 3 is the structural representation of an embodiment of the multichannel filling machine in the coolant injection device of the present invention
Figure.
Detailed description of the invention
The present invention is described in detail below in conjunction with embodiment.It should be noted that in the case of not conflicting,
Embodiment in the application and the feature in embodiment can be mutually combined.
As it is shown in figure 1, the coolant injection device of an embodiment of present invention offer, for the room of air-conditioner
Interior machine vaporizer fills coolant, including single-chip microcomputer 100, multichannel filling machine 200 and refrigerant pipe 300.
Wherein, multichannel filling machine 200 respectively with the outlet of refrigerant pipe 300 and filled vaporizer 01
Self-styled interface connects, it is possible to by the coolant injection in refrigerant pipe 300 to being filled the inside of vaporizer 01.Should
Multichannel filling machine 200 also electrically connects with single-chip microcomputer 100, it is possible under the control of single-chip microcomputer 100 with filled
The self-styled interface of vaporizer 01 departs from.Above-mentioned multichannel filling machine 200 is equivalent to one and can fast automatic take off
The liquid fallen or gas charge mechanism, can be connected with multiple refrigerant pipes 300, and have and filled steaming
Send out the union joint that the self-styled interface structure of device 01 is corresponding.During work, need by multichannel filling machine 200 with
Docked by the self-styled interface filling vaporizer 01.After having worked, multichannel filling machine 200 is at single-chip microcomputer 100
Control lower be rapidly separated with by the self-styled interface filling vaporizer 01.
Refrigerant pipe 300 can have one, it is possibility to have 2,3 even more than.Multichannel filling machine
200 connect multiple refrigerant pipe 300 respectively, and the mixing that can realize multiple coolant fills.
See Fig. 1, along the flow direction (the arrow direction in pipeline) of the coolant in refrigerant pipe 300,
Electric expansion valve the 310, first electromagnetic valve 320, heat exchanger 330, gas it is disposed with on refrigerant pipe 300
Liquid/gas separator the 340, first pressure transducer the 350, second electromagnetic valve the 360, second pressure transducer 370,
First-class gauge 380 and the 3rd electromagnetic valve 390.Wherein, electric expansion valve the 310, first electromagnetic valve 320,
Heat exchanger the 330, first pressure transducer the 350, second electromagnetic valve the 360, second pressure transducer 370,
Flow meters 380 and the 3rd electromagnetic valve 390 electrically connect with single-chip microcomputer 100 respectively.
It is preferred that device for drying and filtering 301 can also be arranged in the porch of refrigerant pipe 300, to entering coolant
The high-pressure liquid coolant of pipeline 300 carries out other contaminant filters such as moisture.
Wherein, heat exchanger 330 is mainly used in coolant heat radiation, can be realized by blower fan.
Below as a example by individually filling a kind of coolant (multichannel filling machine 200 connects 1 refrigerant pipe 300),
In conjunction with Fig. 1, the coolant injection process of the coolant injection device that above-described embodiment provides is illustrated:
During work, single-chip microcomputer 100 controls electric expansion valve 310 and opens certain aperture, the first electromagnetic valve 320,
Second electromagnetic valve the 360, the 3rd electromagnetic valve 390 is opened, and heat exchanger 330 works.From refrigerant pipe 300 entrance
The high-pressure liquid coolant first drying filter 301 entered carries out moisture impurity filtration, then flows through electronics
Expansion valve 310 reducing pressure by regulating flow, arrives heat exchanger 330 through the first electromagnetic valve 320 and dispels the heat, make liquid cold
Matchmaker is converted into gaseous coolant, and the coolant after gasification carries out secondary separation through gas-liquid separator 340 again；Gaseous state is cold
It is steady that matchmaker continues flow through first pressure transducer the 350, second electromagnetic valve the 360, second pressure transducer 370 energy storage
Pressure, arrives multichannel filling machine 200 finally by first-class gauge 380 and the 3rd electromagnetic valve 390.
Generally, before cold coal fills, need to carry out evacuation to being filled vaporizer 01.Current detecting
After filling the satisfied requirement of the vacuum in vaporizer 01, single-chip microcomputer 100 can automatically control the second electromagnetic valve 360 dozens
Opening, coolant flows into from first-class gauge 380.Now, single-chip microcomputer 100 can be adopted according to the first pressure transducer
The pipeline pressure signal that collection arrives controls the aperture of electric expansion valve 310.Such as, if the first pressure transducer 350
When sensing the pipeline pressure of system less than the first force value preset, single-chip microcomputer 100 controls electric expansion valve
310 increase its aperture, with riser tubing pressure.
During coolant injection, when arrived by the coolant of first-class gauge 380 set fill value time, simultaneously second
Pressure transducer 370 senses when pipeline pressure arrives the second force value preset, first-class gauge 380 He
The flow value collected and force value are fed back to single-chip microcomputer by the second pressure transducer 370, Single-chip Controlling
Two electromagnetic valves 360 cut out.Afterwards, the pipeline pressure value collected when the first pressure transducer 350 reaches pre-
If the first force value time, Single-chip Controlling the first electromagnetic valve 320, heat exchanger 330, electric expansion valve 310
Close, stop coolant injection, afterwards Single-chip Controlling multichannel filling machine with by fill vaporizer 01 from sealing-in
Mouth is rapidly separated, and completes coolant automatic filling.
The coolant injection device that above-described embodiment provides, volume is little, it is fast to fill speed, fill precision height and property
Can be stable, safe and reliable.
The coolant injection device that traditional air conditioner room unit vaporizer leak detection is used, the coolant pressure filled
Power and flow are uncontrollable, and do not convert liquid refrigerants during filling, and use liquid refrigerants
Directly fill, serious waste of resources, and environmental pollution is bigger.
And the range of the coolant injection device coolant injection that the present invention provides is at 5-150 gram, filling precision is ± 1
Gram, can strictly control the charging amount of coolant.It can according to concrete demand fill during by liquid
Coolant is converted into gaseous coolant and fills, and can fill gaseous state or liquid refrigerants respectively, it is achieved that gas
Quantitative, the level pressure of state and liquid refrigerants fill.
Generally, coolant required during the indoor machine evaporation pressurize of air-conditioner leak detection if if gaseous state,
Its consumption is much smaller than the consumption of liquid refrigerants.Such as, for same filled vaporizer for, its pressurize hunt leak
Needing to fill 60 grams of liquid refrigerants, the gaseous coolant being filled with about 20 grams can meet demand.So this
Liquid refrigerants is converted during filling by the coolant injection device of bright offer, is converted into by liquid refrigerants
Gaseous coolant, has saved the coolant of 60% relative to traditional coolant injection device, greatly reduces the consumption of coolant,
Decrease the wasting of resources and the pollution to environment.
Additionally, the coolant injection device that the present invention provides, can have R22, R410, R32, N2 etc. multiple
Refrigerant pipe, integrated filled, wherein arbitrarily two or more coolant can mix by a certain percentage
Fill, fill various informative.
Further, as a kind of embodiment, the coolant injection device that above-described embodiment provides also includes
Coolant injection anomaly alarming device, this coolant injection anomaly alarming device electrically connects with single-chip microcomputer 100.
During above-mentioned coolant injection, when the second pressure transducer 370 detects coolant in Preset Time
Pressure change in pipeline 300 is more than when presetting coolant change value of pressure, and single-chip microcomputer 100 controls coolant injection
Anomaly alarming device carries out coolant injection abnormal alarm.This coolant injection anomaly alarming device can be buzzer,
The audible-visual annunciators such as LED light.
Such as, be more than when the second pressure transducer 370 senses pipeline pressure change within the 3-5 second ±
During 0.05Mpa, and this detected value being fed back to single-chip microcomputer 100, it is abnormal that single-chip microcomputer 100 then controls coolant injection
Alarm device is reported to the police.
As it has been described above, generally before cold coal fills, need to carry out evacuation to being filled vaporizer 01.Tradition
Coolant injection device and pumped vacuum systems be separate system, the present invention is then by evacuation and coolant
Fill integration, improve filled efficiency and leak detection degree of accuracy.
Seeing Fig. 2, the coolant injection device that one embodiment of the invention provides also includes vacuum lead 400.Take out
The initiating terminal of vacuum pipe 400 is connected with multichannel filling machine 200, and its end is provided with vacuum pump 410, its
Vacuum buffer tank 420, vacuometer sensor 430 and the 4th electromagnetic valve it is provided with between initiating terminal and end
440.Vacuum pump 410, vacuometer sensor 430 and the 4th electromagnetic valve 440 are electric with single-chip microcomputer 100 respectively
Connect.
Multichannel filling gunlock structure 200 and is filled after vaporizer 01 self-sealing joint docks, single-chip microcomputer 100 is first controlled
Vacuum pump 410 system processed is carried out evacuation to filling vaporizer 01.Specifically, single-chip microcomputer 100 controls vacuum
Pump 410 works, the 4th electromagnetic valve 440 is opened, the vacuum pipe 400 that vacuometer sensor 430 will detect
In vacuum degree feed back to single-chip microcomputer 100.When single-chip microcomputer 100 judges what vacuometer sensor 430 detected
When vacuum degree in vacuum pipe 400 reaches to set vacuum degree, control the 4th electromagnetic valve 440 and close,
Evacuation terminates.
Further, as a kind of embodiment, the coolant injection device that above-described embodiment provides also includes
Vacuum anomaly alarming device, this vacuum anomaly alarming device electrically connects with single-chip microcomputer 100.
In above-mentioned vacuum, gauge sensor 430 detects that vacuum lead 400 inside exists
When not arriving setting vacuum in Preset Time, single-chip microcomputer 100 controls vacuum anomaly alarming device and carries out very
Reciprocal of duty cycle abnormal alarm.This vacuum anomaly alarming device can be the audible-visual annunciator such as buzzer, LED light.
As in figure 2 it is shown, the coolant injection device that one embodiment of the invention provides also includes nitrogen pipeline 500, nitrogen
The outlet of feed channel 500 is connected with multichannel filling machine 200.The 3rd pressure it is provided with on nitrogen pipeline 500
Sensor 510, second gauge 520 and the 5th electromagnetic valve 530, the 3rd pressure transducer 510, second
Effusion meter the 520, the 5th electromagnetic valve 530 electrically connects with single-chip microcomputer 100 respectively.
The coolant injection device that the present embodiment provides, multichannel filling machine 200 is simultaneously connected with refrigerant pipe 300
With nitrogen pipeline 500, nitrogen can be realized and mix with coolant filled by a certain percentage, save the consumption of coolant, fall
Lower energy cost, reduces atmospheric pollution.
It is as follows that it realizes process: while carrying out coolant injection, and single-chip microcomputer 100 controls the 5th electromagnetic valve 530
Opening, the nitrogen in nitrogen pipeline 500 is entered by multichannel filling machine 200 and is filled in vaporizer 01.The
Nitrogen pressure in three pressure transducer 510 Real-time Collection nitrogen pipelines, and fed back to single-chip microcomputer 100；
Meanwhile, the nitrogen flow flowed out in second gauge 520 Real-time Collection nitrogen pipeline 500, and fed back
To single-chip microcomputer 100.When the nitrogen flow flowing through second gauge 520 reaches setting value, single-chip microcomputer 100 is controlled
Make the 5th electromagnetic valve 530 to close.
Further, as a kind of embodiment, the coolant injection device that above-described embodiment provides also includes
Nitrogen pressure anomaly alarming device, this nitrogen pressure anomaly alarming device electrically connects with single-chip microcomputer 100.
During nitrogen fills, when the 3rd pressure transducer 510 detects the pressure in nitrogen pipeline 500
Value is less than when presetting nitrogen pressure force value, and single-chip microcomputer 100 controls nitrogen pressure anomaly alarming device and carries out nitrogen pressure
Power abnormal alarm.This nitrogen pressure anomaly alarming device can be the audible-visual annunciator such as buzzer, LED light.
Seeing Fig. 3, the multichannel filling machine 200 in the coolant injection device that the embodiment of the present invention provides includes many
Road fills rifle 210 and compressed air piping 220, and compressed air piping 220 and multichannel fill the driving of rifle 210
Cylinder connects.
Multichannel fills rifle 210 one end and connects each refrigerant pipe 300, vacuum lead 400 and nitrogen pipeline
500, the other end is connected with by the self-styled interface filling vaporizer 01.Compressed air piping 220 fills with multichannel
The driving cylinder of rifle 210 connects, and is mainly used in after having filled, and drives multichannel to fill rifle 210 and departs from quilt
Fill the self-styled interface of vaporizer 01.
The 4th pressure transducer 221 and the 6th electromagnetic valve 222 it is provided with on compressed air piping 220.4th pressure
Force transducer 221 and the 6th electromagnetic valve 222 electrically connect with single-chip microcomputer 100 respectively.When single-chip microcomputer 100 controls
When 6th electromagnetic valve 222 band conducts, the compressed air in compressed air piping 220 flows to multichannel and fills rifle
The driving cylinder of 210, drives multichannel to fill rifle 210 and departs from and filled the self-styled interface of vaporizer 01.
Compressed air piping 220 in the present embodiment fills the driving means of rifle 210 as multichannel, with monolithic
Machine 100 coordinates realization that multichannel fills automatically controlling of rifle 210, low cost, energy-conserving and environment-protective.
Further, as a kind of embodiment, the coolant injection device that above-described embodiment provides also includes
Compressed air pressure anomaly alarming device, this compressed air pressure anomaly alarming device is electrically connected with single-chip microcomputer 100
Connect.
In multichannel fills rifle 210 work process, fill default when the 4th pressure transducer 221 detects
When the force value that rifle comes off in time compressed air pipeline 220 is less than default compressed air pressure value, monolithic
Machine 100 controls compressed air pressure anomaly alarming device and is compressed abnormal air pressure warning.Compressed air
Pressure abnormal alarming device can be the audible-visual annunciator such as buzzer, LED light.
Above-mentioned first electromagnetic valve the 320, second electromagnetic valve the 360, the 3rd electromagnetic valve the 390, the 4th electromagnetic valve 440,
5th electromagnetic valve 530 can be all two-way electromagnetic valve, and the 6th electromagnetic valve 222 can be two-position-five-way solenoid valve.
The coolant injection device that the embodiment of the present invention provides, volume is little, and automaticity is high, it is simple to operation.
During use, only multichannel need to be filled rifle and be filled the self-styled interface of vaporizer and dock, pressing corresponding start button,
Single-chip microcomputer just control system can carry out evacuation automatically, carries out coolant injection, fill after vacuum degree measurement is qualified
After having noted, multichannel fills rifle Automatic-falling.It has the abnormal alarm mechanism of correspondence at each working stage,
Safe and reliable.It automatic filling possessing four set coolant systems (R22/R410A/R32/N2) controls, can be same
Time work, two kinds of coolant can be realized and mix in certain setting ratio, air conditioner indoor unit evaporator be filled simultaneously
Note.During coolant injection, it is possible to liquid refrigerants is converted into gaseous coolant, fill according to concrete demand
Gas injection state or liquid refrigerants, and precision is high, it is achieved and quantitative, the level pressure of coolant fill, it is ensured that filled air-conditioning
The accuracy of the pressurize leak detection of vaporizer.
The coolant injection device of the present invention has multiple filled mode, is converted by liquid refrigerants during filling
For gaseous coolant, it is possible to reduce the consumption of coolant.Particularly nitrogen and coolant are mixed filled by a certain percentage,
On the basis of not affecting filled effect, coolant consumption can be greatly reduced, thus reduce the pollution to air,
Environmental protection and economical.
Above example only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. a coolant injection device, for filling coolant to the indoor machine evaporation of air-conditioner, its feature exists
In, including single-chip microcomputer (100), multichannel filling machine (200) and refrigerant pipe (300)；
Described multichannel filling machine (200) respectively with the outlet of described refrigerant pipe (300) and filled steaming
The self-styled interface sending out device (01) connects, it is possible to by the coolant injection in described refrigerant pipe (300) to described
Filled the inside of vaporizer (01)；
Described multichannel filling machine (200) also electrically connects with described single-chip microcomputer (100), it is possible at described list
Departed from by the self-styled interface filling vaporizer (01) with described under the control of sheet machine (100)；
Along the flow direction of the coolant in described refrigerant pipe (300), on described refrigerant pipe (300) successively
Be provided with electric expansion valve (310), the first electromagnetic valve (320), heat exchanger (330), gas-liquid separator (340),
First pressure transducer (350), the second electromagnetic valve (360), the second pressure transducer (370), first-class
Gauge (380) and the 3rd electromagnetic valve (390)；
Described electric expansion valve (310), the first electromagnetic valve (320), heat exchanger (330), the first pressure pass
Sensor (350), the second electromagnetic valve (360), the second pressure transducer (370), first-class gauge (380)
And the 3rd electromagnetic valve (390) electrically connect with described single-chip microcomputer (100) respectively.
Coolant injection device the most according to claim 1, it is characterised in that described refrigerant pipe (300)
Porch be additionally provided with device for drying and filtering (301).
Coolant injection device the most according to claim 1, it is characterised in that also include that coolant injection is different
Often alarm device；
Described coolant injection anomaly alarming device electrically connects with described single-chip microcomputer (100)；
During coolant injection, when described second pressure transducer (370) detects institute in Preset Time
When stating the pressure change in refrigerant pipe (300) more than default coolant change value of pressure, described single-chip microcomputer (100)
Control described coolant injection anomaly alarming device and carry out coolant injection abnormal alarm.
Coolant injection device the most according to claim 1, it is characterised in that also include vacuum lead
(400)；
The initiating terminal of described vacuum lead (400) is connected with described multichannel filling machine (200), its end
End be provided with vacuum pump (410), be disposed with between its end and initiating terminal vacuum buffer tank (420),
Vacuometer sensor (430) and the 4th electromagnetic valve (440)；
Described vacuum pump (410), vacuometer sensor (430) and the 4th electromagnetic valve (440) respectively with
Described single-chip microcomputer (100) electrically connects.
Coolant injection device the most according to claim 4, it is characterised in that also include that vacuum is abnormal
Alarm device；
Described vacuum anomaly alarming device electrically connects with described single-chip microcomputer (100)；
In vacuum, when described vacuometer sensor detects that described vacuum lead (400) is internal
When not arriving setting vacuum in Preset Time, described single-chip microcomputer (100) controls the abnormal report of described vacuum
Alarm device carries out vacuum abnormal alarm.
Coolant injection device the most according to claim 4, it is characterised in that also include nitrogen pipeline
(500)；
The outlet of described nitrogen pipeline (500) is connected with described multichannel filling machine (200)；
The 3rd pressure transducer (510), second gauge (520) it is provided with on described nitrogen pipeline (500)
And the 5th electromagnetic valve (530)；
Described 3rd pressure transducer (510), second gauge (520) and the 5th electromagnetic valve (530)
Electrically connect with described single-chip microcomputer (100) respectively.
Coolant injection device the most according to claim 6, it is characterised in that also include that nitrogen pressure is different
Often alarm device；
Described nitrogen pressure anomaly alarming device electrically connects with described single-chip microcomputer (100)；
During nitrogen fills, when described 3rd pressure transducer (510) detects described nitrogen pipeline
(500) force value in is less than when presetting nitrogen pressure force value, and described single-chip microcomputer (100) controls described nitrogen
Pressure abnormal alarming device carries out nitrogen pressure abnormal alarm.
Coolant injection device the most according to claim 6, it is characterised in that described multichannel filling machine
(200) include that multichannel fills rifle (210) and compressed air piping (220)；
Described multichannel fill rifle (210) respectively with described refrigerant pipe (300), vacuum lead (400),
Nitrogen pipeline (500) and described by filled vaporizer (01) self-styled interface connect；
Described compressed air piping (220) fills the driving cylinder of rifle (210) and is connected with described multichannel, its
On be provided with the 4th pressure transducer (221) and the 6th electromagnetic valve (222)；
Described 4th pressure transducer (221) and described 6th electromagnetic valve (222) respectively with described single-chip microcomputer
(100) electrical connection；When described single-chip microcomputer (100) control described 6th electromagnetic valve (222) band conduct time,
Compressed air in described compressed air piping (220) flows to described multichannel and fills the driving gas of rifle (210)
Cylinder, drives described multichannel to fill rifle (210) and departs from and described filled the self-styled interface of vaporizer (01).
Coolant injection device the most according to claim 8, it is characterised in that also include compressed air pressure
Power anomaly alarming device；
Described compressed air pressure anomaly alarming device electrically connects with described single-chip microcomputer (100)；
In described multichannel fills rifle work process, when described 4th pressure transducer (221) detects in advance
If filled rifle comes off, in the time, the force value in described compressed air piping (220) is less than and presets compressed air pressure
During force value, described single-chip microcomputer (100) controls described compressed air pressure anomaly alarming device and is compressed air
Pressure anomaly is reported to the police.
10. according to the coolant injection device described in any one of claim 1 to 9, it is characterised in that described
Refrigerant pipe (300) is multiple, multiple described refrigerant pipes (300) respectively with described multichannel filling machine
(200) connect.
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| CN201410566944.5A CN104374128B (en) | 2014-10-22 | 2014-10-22 | Coolant injection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410566944.5A CN104374128B (en) | 2014-10-22 | 2014-10-22 | Coolant injection device |
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| CN104374128A CN104374128A (en) | 2015-02-25 |
| CN104374128B true CN104374128B (en) | 2016-08-17 |
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| CN201410566944.5A Expired - Fee Related CN104374128B (en) | 2014-10-22 | 2014-10-22 | Coolant injection device |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106152410B (en) * | 2016-07-18 | 2019-07-23 | 珠海格力电器股份有限公司 | Air conditioning control device, control method and air conditioner |
| CN107642928B (en) * | 2017-09-30 | 2023-07-07 | 江门中远海运铝业有限公司 | Micro-channel heat pipe refrigerant filling method and device |
| CN107702291B (en) * | 2017-10-31 | 2020-12-04 | 广东美的暖通设备有限公司 | Refrigerant charging control method and system and air conditioner |
| CN109028671A (en) * | 2018-07-31 | 2018-12-18 | 格力电器（武汉）有限公司 | One kind filling fluorine system system |
| CN109002156B (en) * | 2018-10-11 | 2023-09-15 | 郑州云海信息技术有限公司 | Novel closed phase-change liquid cooling server system |
| CN109341163A (en) * | 2018-10-11 | 2019-02-15 | 珠海格力智能装备有限公司 | Evaporator production equipment |
| CN109539646B (en) * | 2018-11-06 | 2020-11-13 | 格力电器（重庆）有限公司 | Refrigerant filling method, device, equipment and system |
| CN110500735B (en) * | 2019-07-17 | 2021-06-29 | 视联动力信息技术股份有限公司 | Refrigerant pressure control method and device for air conditioning equipment, equipment and air conditioner |
| CN110595121A (en) * | 2019-07-19 | 2019-12-20 | 佛山市顺德区鼎联智能科技有限公司 | Refrigerant mixing injection machine and refrigerant mixing injection method |
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