CN106016868A - Method for automatically adding refrigerant to air-conditioner system - Google Patents
Method for automatically adding refrigerant to air-conditioner system Download PDFInfo
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- CN106016868A CN106016868A CN201610395108.4A CN201610395108A CN106016868A CN 106016868 A CN106016868 A CN 106016868A CN 201610395108 A CN201610395108 A CN 201610395108A CN 106016868 A CN106016868 A CN 106016868A
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- coolant
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- 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
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Abstract
The invention provides a method for automatically adding a refrigerant to an air-conditioner system. The air-conditioner system comprises a compressor (1), a four-way valve (2) and an air fractionation device (3), wherein a refrigerant adding tank (4) and a control valve (5) are further connected between the four-way valve (2) and the air fractionation device (3) in a branched manner. the method comprises steps as follows: 1) a detection and judgment step: at least one of the compressor exhaust temperature, the outdoor unit heat exchanger intermedium tube temperature, the indoor environment temperature and the compressor power value when the system reaches the preset fixed frequency f after the system is started up and runs for first preset time t1 is detected, and the compressor exhaust temperature, the outdoor unit heat exchanger intermedium tube temperature, the indoor environment temperature and the compressor power value are compared with respective initial values respectively, so that whether the system lacks the refrigerant is judged; 2) a control step: the action of addition of the refrigerant is executed according to the judgment result of the detection and judgment step, or otherwise. With the adoption of the method, whether the system lacks the refrigerant or the refrigerant is insufficient can be judged accurately and correctly, the detection and judgment accuracy is improved, the automatic refrigerant addition operation is realized, and the automatic refrigerant addition process is rapid and efficient.
Description
Technical field
The invention belongs to air-conditioning technical field, be specifically related to the side automatically adding coolant of a kind of air conditioning system
Method.
Background technology
Air-conditioning of the prior art is when longtime running, and coolant can gradually be leaked in air, when coolant is few
In to a certain degree time, the cooling or heating effect of whole air-conditioning can be very poor, but if makes house calls after sale and can
Extra unnecessary economic expenditure is increased for consumer.
The patent of Patent No. CN104534752A discloses the thinking of a kind of cooling medium charging system, but should
Method for perfusing refrigerant use the components and parts can bought on the market such as temperature sensor or foil gauge as inspection
Survey element, coordinate the components and parts can bought on markets such as using decision circuitry as multilevel iudge unit device simultaneously
Part, collectively as judging whether coolant lacks or the detection components and parts of deficiency, the detection using routine is sentenced
Disconnected method (such as temperature detection etc.), such detection judging means usually cannot accurately or precisely judge
Go out whether the coolant in air conditioning system disappearance or the situation of deficiency occurs, even there is also misjudgment, and
And its control operating time length, intelligence degree is relatively low, also need to professional operates.
Due to the cooling medium charging means of air conditioning system of the prior art also exist detection judged result inaccurate
Even mistake, control operating time length, intelligence degree is relatively low, also need to professional carries out the skills such as operation
Art problem, research design the most of the present invention goes out a kind of method automatically adding coolant of air conditioning system.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is to overcome air conditioning system coolant of the prior art to fill
Note means also exist the defects such as the inaccurate even mistake of detection judged result, thus provide a kind of air conditioning system
Automatically the method adding coolant.
The present invention provides a kind of method automatically adding coolant of air conditioning system, and wherein said air conditioning system includes
Compressor, cross valve, edema caused by disorder of QI, wherein also branch connect between described cross valve and described edema caused by disorder of QI have cold
Matchmaker adds tank and control valve,
And include: 1) detection judges step, detecting system start arrives in advance after running the first preset time t 1
If compressor exhaust temperature during fixed frequency f, outer machine heat exchanger intervalve temperature, indoor environment temperature and
The size of at least one in compressor horsepower value, and will compare between itself and respective initial value respectively,
Thus judge whether system lacks coolant；
2) rate-determining steps: according to judging that the judged result of step performs the interpolation action or no of coolant.
Preferably, the detection of described delivery temperature judges that step is: work as TAerofluxus is initial-TAerofluxus t1＜ Δ TAerofluxusTime,
Meet the first Rule of judgment lacking coolant, wherein TAerofluxus is initialThe aerofluxus of compressor when running original state for system
Temperature value, TAerofluxus t1For the outlet air temperature of compressor, Δ T after the system operation t1 timeAerofluxusDuring for scarce coolant
Aerofluxus temperature approach.
Preferably, aerofluxus temperature approach Δ T during described scarce coolantAerofluxusIt it is 10 DEG C.
Preferably, the detection of described outer tube temperature judges that step is: work as TOuter tube is initial-TOuter tube t1＜ Δ TOuter tubeTime,
Meet the second Rule of judgment lacking coolant, wherein TOuter tube is initialOuter machine heat exchanger during original state is run for system
Intervalve temperature value, TOuter tube t1The outer machine heat exchanger intervalve temperature value after the t1 time, Δ T is run for systemOuter tubeFor outer machine heat exchanger intervalve temperature approach during scarce coolant.
Preferably, outer tube temperature approach Δ T during described scarce coolantOuter tubeIt it is 10 DEG C.
Preferably, the detection of described internal ring temperature judges that step is: work as TInternal ring is initial-TInternal ring t1＜ Δ TInternal ring
Time, meet the 3rd Rule of judgment lacking coolant, wherein TInternal ring is initialIndoor ring during original state is run for system
Border temperature value, TInternal ring t1The indoor environment temperature value after the t1 time, Δ T is run for systemInternal ringDuring for scarce coolant
Internal ring temperature approach.
Preferably, internal ring temperature approach Δ T during described scarce coolantInternal ringIt it is 2 DEG C.
Preferably, the detection of described compressor horsepower value judges that step is: work as Pt1＜ PT1 lacks coolantTime, meet and lack
4th Rule of judgment of coolant, wherein Pt1The compressor actual power value after the t1 time, P is run for systemt1 Lack coolantIn the case of non-scarce coolant, the compressor horsepower lower limit that this default fixed frequency is corresponding.
Preferably, described first preset time t 1 is 8 minutes, and described default fixed frequency f is 50Hz.
Preferably, described rate-determining steps includes: when system is judged and falls vacant coolant, open control valve (5),
Carrying out cooling medium charging, now compressor remains in operation with default fixed frequency, continues the second preset time t 2
After, proceed to lack coolant conditional judgment, when being unsatisfactory for lacking coolant condition, then enter normal operation mode.
Preferably, when still meeting scarce coolant condition, then adjusting control valve (5) continues to open, and makes
Compressor continues to remain in operation with default fixed frequency, more persistently after the second preset time t 2, again judges to lack
Coolant condition, so circulates, until being unsatisfactory for lacking coolant condition, then enters normal operation mode.
Preferably, if N continuous time all meets the coolant condition that lacks, then system-down, report lack coolant protection,
And prompting of giving notice need to carry out adding coolant and process, wherein N is positive integer.
Automatically the method adding coolant of a kind of air conditioning system that the present invention provides has the advantages that
1., by the method automatically adding coolant of the air conditioning system of the present invention, use detecting system start fortune
Arrive in the middle of compressor exhaust temperature when presetting fixed frequency f, outer machine heat exchanger after row the first preset time t 1
The size of at least one in pipe temperature, indoor environment temperature and 4 parameter values of compressor horsepower value, and point
Will not compare between itself and respective initial value, thus judge whether system lacks the detection means of coolant,
Accurately and whether the system that correctly judges can occur lacking coolant or the situation of cold medium shortage, improve
Accuracy of detection, it is achieved that automatically add the operation of coolant, and automatically add coolant process rapidly, efficiently,
The cooling medium charging means solving existing air conditioning system also exist the skill of the inaccurate even mistake of testing result
Art problem；
2., by the method automatically adding coolant of the air conditioning system of the present invention, detect process rapidly, efficiently,
And detection judge process and control that process intelligence degree is higher, the operating time is short, need not professional enters
Row manual operation, improves automatization and the intelligence degree adding coolant；
3. by the method automatically adding coolant of the air conditioning system of the present invention, it is achieved that staged, progressively
The scarce coolant conditional judgment of formula and the process of cooling medium charging and control, it is possible to make air conditioning system is gone forward one by one
The cooling medium charging of formula so that the cooling medium charging amount of system is unlikely to very few and is unsatisfactory for demand and prevents coolant
Groundwater increment is unlikely to excessive and causes whole air conditioning system and block up or bring burden, ensures the peace of filling process
Entirely, reliably, effectively run.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air conditioning system that can automatically add coolant of the present invention.
In figure, reference is expressed as:
1 compressor, 2 cross valves, 3 edema caused by disorder of QI, 4 coolant add tank, 5 control valves, 6 condensations
Device, 7 vaporizers, 8 electric expansion valves, 9 subcooler 1,10 subcooler 2,11 stop valves 1,
12 stop valve 2,13 indoor sets, 14 off-premises stations, 15 branch lines.
Detailed description of the invention
As it is shown in figure 1, the present invention provides a kind of method automatically adding coolant of air conditioning system, wherein said
Air conditioning system includes compressor 1, cross valve 2, edema caused by disorder of QI 3 (i.e. gas-liquid separator), wherein at described four-way
Between valve 2 and described edema caused by disorder of QI 3, also the connection of branch ground has coolant to add tank 4 and control valve 5 (described control valve
It is preferably two-port valve), (i.e. connect to the line segments also branch between described cross valve 2 and described edema caused by disorder of QI 3
It is connected to branch line 15, described branch line 15 has been disposed in series coolant and has added tank 4 and control valve 5),
And include: 1) judge step, detecting system start arrives after running the first preset time t 1 and presets admittedly
Compressor exhaust temperature when determining frequency f, outer machine heat exchanger intervalve temperature (hereinafter referred to as outer tube temperature,
Be preferably outer machine condenser intervalve temperature), indoor environment temperature (hereinafter referred to as internal ring temperature) and compress
The size of at least one in acc power value, and will compare between itself and respective initial value respectively, from
And judge whether system lacks coolant；
2) rate-determining steps: according to judging that the judged result of step performs the interpolation action or no of coolant.
By the method automatically adding coolant of the air conditioning system of the present invention, it is provided that a kind of new coolant detection
Scheme, by using system boot to arrive compression when presetting fixed frequency f after running the first preset time t 1
Machine delivery temperature, outer machine heat exchanger intervalve temperature, indoor environment temperature and/or the size of compressor horsepower value,
And will compare between itself and respective initial value respectively, thus judge whether system lacks the detection hands of coolant
Section, it is possible to accurately and whether occur in the system that correctly judges lacking coolant or the situation of cold medium shortage, carry
High accuracy of detection, and detect process rapidly, efficiently, solve the cooling medium charging of existing air conditioning system
Means also exist the technical problem of the inaccurate even mistake of testing result.
Preferably, the detection of described delivery temperature judges that step is: work as TAerofluxus is initial-TAerofluxus t1＜ Δ TAerofluxusTime,
Meet the first Rule of judgment lacking coolant, wherein TAerofluxus is initialThe aerofluxus of compressor when running original state for system
Temperature value, TAerofluxus t1For the outlet air temperature of compressor, Δ T after the system operation t1 timeAerofluxusDuring for scarce coolant
Aerofluxus temperature approach, according to experiment determine, be particularly preferred as 10 DEG C.This is the detection judgement step of the present invention
The concrete detection determination methods of first parameter (delivery temperature) in Zhou and step, by above-mentioned first
Rule of judgment, works as TAerofluxus is initial-TAerofluxus t1＜ Δ TAerofluxusTime, the delivery temperature after the system operation t1 time is described
Difference between value and aerofluxus initial value is at Δ TAerofluxusIn the range of, Δ TAerofluxusUsually a size is relatively small
Numerical value, suitable change (being preferably 10 DEG C in this programme) can be carried out according to the performance difference of compressor,
Then explanation system delivery temperature after scarce coolant (preferably fluorine) runs certain time afterwards rises inconspicuous,
If this is because system lacking coolant, cooling system or heating operation by serious obstruction, compressor
Do not have the effect of compression, even there will be the situation of idle running.
Preferably, aerofluxus temperature approach Δ T during described scarce coolantAerofluxusIt it is 10 DEG C.Aerofluxus when this is to lack coolant
Temperature approach Δ TAerofluxusThe most concrete numerical value of (constant).
Preferably, the detection of described outer tube temperature judges that step is: work as TOuter tube is initial-TOuter tube t1＜ Δ TOuter tubeTime,
Meet the second Rule of judgment lacking coolant, wherein TOuter tube is initialOuter machine heat exchanger during original state is run for system
Intervalve temperature value, TOuter tube t1The outer machine heat exchanger intervalve temperature value after the t1 time, Δ T is run for systemOuter tubeFor outer machine heat exchanger intervalve temperature approach during scarce coolant, it is determined according to experiment, generally 1-3 DEG C.
This be the detection of the present invention second parameter (outer tube temperature) that judges in step specifically detect determination methods
And step, by the second above-mentioned Rule of judgment, work as TOuter tube is initial-TOuter tube t1＜ Δ TOuter tubeTime, illustrate that system is transported
The difference between outer tube temperature value and outer tube initial value after the row t1 time is at Δ TOuter tubeIn the range of, Δ TOuter tubeLogical
The numerical value that Chang Weiyi size is relatively small, can carry out suitable change (this according to the performance difference of heat exchanger
Scheme is preferably 1-3 DEG C), then explanation system runs certain time mistake afterwards at scarce coolant (preferably fluorine)
Rear outer tube (outer machine heat exchanger tube) temperature rises inconspicuous (outer tube heat transfer effect is low), this is because in system
If lacking coolant, cooling system or heating operation are by serious obstruction, and compressor does not has the work of compression
With, even there will be the situation of idle running.
Preferably, outer tube temperature approach Δ T during described scarce coolantOuter tubeIt it is 10 DEG C.Outer tube when this is to lack coolant
Temperature approach Δ TOuter tubeThe most concrete numerical value of (constant).
Preferably, the detection of described internal ring temperature judges that step is: work as TInternal ring is initial-TInternal ring t1＜ Δ TInternal ring
Time, meet the 3rd Rule of judgment lacking coolant, wherein TInternal ring is initialIndoor ring during original state is run for system
Border temperature value, TInternal ring t1The indoor environment temperature value after the t1 time, Δ T is run for systemInternal ringDuring for scarce coolant
Internal ring temperature approach.This is the tool that the detection of the present invention judges the 3rd parameter (internal ring temperature) in step
Determination methods and step are surveyed in health check-up, by the 3rd above-mentioned Rule of judgment, work as TInternal ring is initial-TInternal ring t1＜ Δ TInternal ring
Time, illustrate that the difference between internal ring temperature value and the internal ring initial value after the system operation t1 time is at Δ TInternal ring
In the range of, Δ TInternal ringThe numerical value that usually a size is relatively small, can enter according to the performance difference of compressor
The change (being the most also 2 DEG C in this programme) that row is suitable, then explanation system is at scarce coolant (preferably fluorine)
After rear operation certain time, internal ring variations in temperature is inconspicuous, if this is because lack coolant in system, being
Controlling is cold or heating operation is by serious obstruction, and compressor does not has the effect of compression, even there will be sky
The situation turned.
Preferably, internal ring temperature approach Δ T during described scarce coolantInternal ringIt it is 2 DEG C.Internal ring when this is to lack coolant
Temperature approach Δ TInternal ringThe most concrete numerical value of (constant).
Preferably, the detection of described compressor horsepower value judges that step is: work as Pt1＜ PT1 lacks coolantTime, meet and lack
4th Rule of judgment of coolant, wherein Pt1The compressor actual power value after the t1 time, P is run for systemt1 Lack coolantIn the case of non-scarce coolant, the compressor horsepower lower limit that this default fixed frequency is corresponding, when i.e. lacking coolant
Performance number (illustrate under this frequency that power is the lowest and just lack fluorine).This is that the detection of the present invention judges in step
The concrete detection determination methods of the 4th parameter (compressor horsepower) and step, sentence by the above-mentioned the 4th
Broken strip part, works as Pt1＜ PT1 lacks coolantTime, the compressor actual power value after the system that illustrates runs the t1 time lacks than non-
In the case of coolant, compressor horsepower lower limit corresponding to this default fixed frequency little, further illustrate compression
Machine actual power be likely to be in the non-abundant compression of scarce coolant even dally unpressed in the case of, this be because of
If do not had by serious obstruction, compressor for system lacks coolant, cooling system or heating operation
The effect of compression, even there will be the situation of idle running.
Preferably, when 4 above-mentioned parameters meet corresponding Rule of judgment the most simultaneously, then judge that system lacks cold
Matchmaker.4 above-mentioned parameters carry out above-mentioned detection judge simultaneously, and make above-mentioned 4 Rule of judgment the fullest
During foot, it is possible to judge whether system exists scarce coolant (preferably fluorine) or cold medium shortage more like clockwork
Situation.
Preferably, described first preset time t 1 is 8 minutes, and described default fixed frequency f is 50Hz.
This is the preferred value of the first preset time t 1 of the present invention, can be according to the situation of actual air conditioning system and reality
The needs on border are set, default fixed frequency f is chosen as 50Hz first this be according to actual air-conditioning and
Situation carries out preferred frequency values, the frequency of the 2nd 50Hz be the mains frequency of China be 50HZ, use
This frequency can carry out upconversion operation without using converter to it, cost-effective, simple to operate and convenient.
Preferably, described rate-determining steps includes: when system is judged and falls vacant coolant, open control valve 5 (excellent
Select two-port valve), carry out cooling medium charging, now compressor with default fixed frequency (preferably 50Hz) continue
Operating, after continuing the second preset time t 2 (the most such as 3min), proceeds to lack coolant conditional judgment,
When being unsatisfactory for lacking coolant condition, then enter normal operation mode.
This be detection judge step judge system lack coolant in the case of concrete coolant add and control to grasp
Making step, when system is judged out and lacks coolant, then operation control valve opens it with can be suitable by coolant
Added by branch line in the refrigerant pipeline of the system that is filled into sharply, complete the interpolation filling process of coolant,
But the size of the coolant of perfusion or how many operation demand whether meeting system, then need to perform further
Judging operating procedure, i.e. (this second Preset Time is generally according to system for cooling medium charging the second preset time t 2
COP value size, the watt level of compressor and be set) after carry out detection next time again and judge step,
If be unsatisfactory for lacking coolant regulation, then cooling medium charging and abundance it be described and meet the needs of system, then entering
Entering properly functioning pattern, the normal cooling and warming entering system runs, and the one-time detection of completion system is sentenced
Disconnected cooling medium charging also reaches the process that perfusion requires.
Preferably, when still meeting scarce coolant condition, then adjusting control valve 5 (preferably two-port valve) continues to beat
Open, and make compressor continue to remain in operation with default fixed frequency (preferably 50Hz), more persistently second
After preset time t 2 (the most such as 3min), again judge to lack coolant condition, so circulate, until not
Meet and lack coolant condition, then enter normal operation mode.
This is that the method for perfusing refrigerant of the present invention is judged out still satisfied scarce coolant bar after completing cooling medium charging
Further operating procedure during part, the most still meets the coolant condition that lacks, illustrates that cooling medium charging amount is inadequate or not enough,
Then need further it to be carried out the perfusion of coolant, then continue to open control valve, carry out cooling medium charging, continue
After second preset time t 2, again judge to lack coolant condition, so circulate, until being unsatisfactory for lacking coolant condition,
Then enter normal operation mode, it is achieved that staged, the scarce coolant conditional judgment of multi step format and cooling medium charging
Process and control, it is possible to make air conditioning system is carried out laddering cooling medium charging so that the coolant of system fills
Fluence be unlikely to very few and be unsatisfactory for demand and prevent cooling medium charging amount be unlikely to excessive and to whole air-conditioning
System causes blocks up or brings burden, ensures the safe, reliable and effective operation of filling process.
Preferably, if N continuous time (preferably 6 times) all meets the coolant condition that lacks, then explanation coolant adds
Do not have coolant in tank, then system-down report lacks coolant protection, notifies that personnel carry out adding coolant process after sale, its
Middle N is positive integer, is set according to actual needs.
This be continuously perform cooling medium charging during all fail to reach to be unsatisfactory for lacking the concrete behaviour of coolant condition
Making step, now explanation coolant adds tank Rigen does not the most just have coolant, if such continuation operation is gone down can be only
Futile effort, wherein n times are set, the most for example, 6 with the actual performance of system according to actual needs
Secondary, in the case of this, then system autostop sends the signal of scarce coolant protection, so that system is carried out protective effect,
And notify that related personnel carries out coolant process, it is ensured that the safe and reliable operation of system.
Operation principle and the preferred embodiment of the present invention are described below
Technical scheme proposes a kind of control flow and the method for air conditioning system coolant automatic filling,
According to the sensor parameters of system, utilize coolant to add tank 4 (or claiming extra coolant to fill) and carry out cooling medium charging,
The reliability of guarantee system.
System schema:
In cross valve 2 and gas-liquid separator 3, an indirect extra coolant fills 4, and there is a control valve 5 centre
(preferably two-port valve).System flow chart such as Fig. 1.
When user sets refrigeration start, and first system runs to one admittedly in start t1 (such as 8min) time
Determine frequency f (such as 50Hz), when meeting following condition simultaneously:
1、TThe delivery temperature start moment-TDelivery temperature start 8min＜ Δ T lacks the fluorine aerofluxus temperature difference (such as 10 DEG C), illustrates to lack fluorine
Final vacuum temperature rises inconspicuous；
2、TThe outer tube temperature start moment-TOuter tube temperature start 8min＜ Δ T lacks the fluorine outer tube temperature difference (such as 10 DEG C), illustrates to lack fluorine
Rear outer tube temperature rises inconspicuous；
3、▏TThe internal ring temperature start moment-TInternal ring temperature start 8minThe ＜ Δ T internal ring internal ring temperature difference (such as 2 DEG C), lacks fluorine
Rear internal ring variations in temperature is inconspicuous；
4、PStart 8min compressor horsepower＜ P50Hz judges to lack fluorine power；P50Hz judges that lacking fluorine power is under non-scarce fluorine pattern, frequently
Rate is the lower limit that 50Hz is corresponding.
Then judging that system lacks fluorine, now compress and remain in operation with 50Hz, t2 (such as 3min) opened by two-port valve,
Proceed to lack fluorine conditional judgment, when being unsatisfactory for lacking fluorine condition, then enter normal operation mode.When still
Meet the fluorine condition that lacks, then compression continues to remain in operation with 50Hz, and two-port valve continues to open t2 (such as 3min),
Judge at this to lack fluorine condition.So circulation, until being unsatisfactory for lacking fluorine condition, then enters normal operation mode.
If all meeting and lack fluorine condition for continuous 6 times, then illustrate all not have in extra fluid reservoir coolant, then system-down
Report lacks fluorine protection, notifies that personnel carry out adding fluorine process after sale.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each advantageous manner can
Freely to combine, superposition.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all at this
Any amendment, equivalent and the improvement etc. made within bright spirit and principle, should be included in the present invention
Protection domain within.The above is only the preferred embodiment of the present invention, it is noted that for this skill
For the those of ordinary skill in art field, on the premise of without departing from the technology of the present invention principle, it is also possible to make
Some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (12)
1. the method automatically adding coolant of an air conditioning system, it is characterised in that: described air conditioning system includes
Compressor (1), cross valve (2), edema caused by disorder of QI (3), wherein at described cross valve (2) and described edema caused by disorder of QI
(3) between, also the connection of branch ground has coolant to add tank (4) and control valve (5),
And include: 1) detection judges step, detecting system start arrives in advance after running the first preset time t 1
If compressor exhaust temperature during fixed frequency f, outer machine heat exchanger intervalve temperature, indoor environment temperature and
The size of at least one in compressor horsepower value, and will compare between itself and respective initial value respectively
Relatively, thus judge whether system lacks coolant；
2) rate-determining steps: according to judging that the judged result of step performs the interpolation action or no of coolant.
The most automatically the method adding coolant, it is characterised in that: described compressor is arranged
The detection of temperature judges that step is: work as TAerofluxus is initial-TAerofluxus t1＜ Δ TAerofluxusTime, meet the first of scarce coolant and sentence
Broken strip part, wherein TAerofluxus is initialThe outlet air temperature of compressor, T when running original state for systemAerofluxus t1For being
The outlet air temperature of compressor, Δ T after the system operation t1 timeAerofluxusFor aerofluxus temperature approach during scarce coolant.
The most automatically the method adding coolant, it is characterised in that: during described scarce coolant
Aerofluxus temperature approach Δ TAerofluxusIt it is 10 DEG C.
4. according to the method for the described automatic interpolation coolant of one of claim 1-3, it is characterised in that: outside described
The detection of machine heat exchanger intervalve temperature judges that step is: work as TOuter tube is initial-TOuter tube t1＜ Δ TOuter tubeTime, meet and lack
Second Rule of judgment of coolant, wherein TOuter tube is initialOuter machine heat exchanger intervalve during original state is run for system
Temperature value, TOuter tube t1The outer machine heat exchanger intervalve temperature value after the t1 time, Δ T is run for systemOuter tubeIt is scarce
Outer machine heat exchanger intervalve temperature approach during coolant.
The most automatically the method adding coolant, it is characterised in that: during described scarce coolant
Outer tube temperature approach Δ TOuter tubeIt it is 10 DEG C.
6. according to the method for the described automatic interpolation coolant of one of claim 1-5, it is characterised in that: described room
The detection of interior ambient temperature judges that step is: work as TInternal ring is initial-TInternal ring t1＜ Δ TInternal ringTime, meet and lack coolant
The 3rd Rule of judgment, wherein TInternal ring is initialIndoor environment temperature value during original state, T is run for systemIn Ring t1The indoor environment temperature value after the t1 time, Δ T is run for systemInternal ringFor internal ring temperature approach during scarce coolant.
The most automatically the method adding coolant, it is characterised in that: during described scarce coolant
Internal ring temperature approach Δ TInternal ringIt it is 2 DEG C.
8. according to the method for the described automatic interpolation coolant of one of claim 1-7, it is characterised in that: described pressure
The detection of contracting acc power value judges that step is: work as Pt1＜ PT1 lacks coolantTime, meet the 4th Rule of judgment lacking coolant,
Wherein Pt1The compressor actual power value after the t1 time, P is run for systemT1 lacks coolantIn the case of non-scarce coolant,
The compressor horsepower lower limit that this default fixed frequency is corresponding.
9. according to the method for the described automatic interpolation coolant of one of claim 1-8, it is characterised in that: described
One preset time t 1 is 8 minutes, and described default fixed frequency f is 50Hz.
10. according to the method for the described automatic interpolation coolant of one of claim 1-9, it is characterised in that: described
Rate-determining steps includes: when system is judged and falls vacant coolant, opens control valve (5), carries out cooling medium charging,
Now compressor remains in operation with default fixed frequency, after continuing the second preset time t 2, proceeds scarce cold
Matchmaker's conditional judgment, when being unsatisfactory for lacking coolant condition, then enters normal operation mode.
11. methods the most automatically adding coolant, it is characterised in that: when still full
Foot lacks coolant condition, then adjusting control valve (5) continues to open, and it is fixing that compressor is continued to preset
Frequency remains in operation, more persistently after the second preset time t 2, again judges to lack coolant condition, so circulate,
Until being unsatisfactory for lacking coolant condition, then enter normal operation mode.
12. according to the method automatically adding coolant described in claim 11, it is characterised in that: if N continuous
Secondary all meet lack coolant condition, then system-down, report lack coolant protection, and prompting of giving notice need to add
Coolant processes, and wherein N is positive integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395108.4A CN106016868B (en) | 2016-06-02 | 2016-06-02 | A kind of method of the automatic addition refrigerant of air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610395108.4A CN106016868B (en) | 2016-06-02 | 2016-06-02 | A kind of method of the automatic addition refrigerant of air-conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106016868A true CN106016868A (en) | 2016-10-12 |
| CN106016868B CN106016868B (en) | 2018-10-02 |
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| CN201610395108.4A Active CN106016868B (en) | 2016-06-02 | 2016-06-02 | A kind of method of the automatic addition refrigerant of air-conditioning system |
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| CN106369765A (en) * | 2016-10-27 | 2017-02-01 | 珠海格力电器股份有限公司 | Primary air system fault judgment method and warning system |
| CN106739957A (en) * | 2016-12-15 | 2017-05-31 | 中原工学院 | Suitable for the automotive air-conditioning system of the overall situation temperature difference |
| CN107084509A (en) * | 2017-06-13 | 2017-08-22 | 珠海格力电器股份有限公司 | Air conditioner adds refrigerant control method, control device and air conditioner |
| CN108317681A (en) * | 2018-01-02 | 2018-07-24 | 珠海格力电器股份有限公司 | The control method and convertible frequency air-conditioner of convertible frequency air-conditioner |
| CN108518900A (en) * | 2018-03-14 | 2018-09-11 | 珠海格力电器股份有限公司 | A kind of air conditioner coolant perfusion control method, device, storage medium and air-conditioning |
| CN108759010A (en) * | 2018-06-19 | 2018-11-06 | 广东美的制冷设备有限公司 | Refrigerant replenishment control method, air conditioner and the storage medium of air conditioner |
| CN108895733A (en) * | 2018-09-19 | 2018-11-27 | 广东美的暖通设备有限公司 | A kind of method and device of coolant injection |
| CN109028459A (en) * | 2018-09-11 | 2018-12-18 | 海信（山东）空调有限公司 | Air-conditioner control method and air conditioner |
| CN109539456A (en) * | 2017-09-21 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of guard method of air conditioner room unit and device |
| CN109631436A (en) * | 2019-01-14 | 2019-04-16 | 四川长虹空调有限公司 | The rational judgment method of refrigeration dose |
| CN110645672A (en) * | 2019-10-14 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for variable frequency air conditioner |
| CN110940040A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Refrigerant detection and filling method and air conditioning system |
| CN111845278A (en) * | 2020-08-06 | 2020-10-30 | 黄燕嫦 | Energy-saving heat pump air conditioner for electric automobile |
| US10837685B2 (en) | 2018-06-29 | 2020-11-17 | Johnson Controls Technology Company | HVAC refrigerant charging and relieving systems and methods |
| CN112303808A (en) * | 2020-10-28 | 2021-02-02 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method and system and storage medium |
| CN114963528A (en) * | 2021-06-29 | 2022-08-30 | 青岛海尔新能源电器有限公司 | Refrigerant detection method, device, equipment and storage medium |
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| CN106369765A (en) * | 2016-10-27 | 2017-02-01 | 珠海格力电器股份有限公司 | Primary air system fault judgment method and warning system |
| CN106369765B (en) * | 2016-10-27 | 2018-10-19 | 珠海格力电器股份有限公司 | A kind of fresh air system fault judgment method and warning system |
| CN106739957A (en) * | 2016-12-15 | 2017-05-31 | 中原工学院 | Suitable for the automotive air-conditioning system of the overall situation temperature difference |
| CN107084509A (en) * | 2017-06-13 | 2017-08-22 | 珠海格力电器股份有限公司 | Air conditioner adds refrigerant control method, control device and air conditioner |
| CN107084509B (en) * | 2017-06-13 | 2023-10-13 | 珠海格力电器股份有限公司 | Air conditioner additional refrigerant control method and device and air conditioner |
| CN109539456A (en) * | 2017-09-21 | 2019-03-29 | 奥克斯空调股份有限公司 | A kind of guard method of air conditioner room unit and device |
| CN108317681A (en) * | 2018-01-02 | 2018-07-24 | 珠海格力电器股份有限公司 | The control method and convertible frequency air-conditioner of convertible frequency air-conditioner |
| CN108518900A (en) * | 2018-03-14 | 2018-09-11 | 珠海格力电器股份有限公司 | A kind of air conditioner coolant perfusion control method, device, storage medium and air-conditioning |
| CN108759010A (en) * | 2018-06-19 | 2018-11-06 | 广东美的制冷设备有限公司 | Refrigerant replenishment control method, air conditioner and the storage medium of air conditioner |
| US10837685B2 (en) | 2018-06-29 | 2020-11-17 | Johnson Controls Technology Company | HVAC refrigerant charging and relieving systems and methods |
| CN109028459A (en) * | 2018-09-11 | 2018-12-18 | 海信（山东）空调有限公司 | Air-conditioner control method and air conditioner |
| CN108895733A (en) * | 2018-09-19 | 2018-11-27 | 广东美的暖通设备有限公司 | A kind of method and device of coolant injection |
| CN108895733B (en) * | 2018-09-19 | 2021-05-25 | 广东美的暖通设备有限公司 | Refrigerant filling method and device |
| CN109631436A (en) * | 2019-01-14 | 2019-04-16 | 四川长虹空调有限公司 | The rational judgment method of refrigeration dose |
| CN109631436B (en) * | 2019-01-14 | 2021-06-04 | 四川长虹空调有限公司 | Method for judging reasonability of refrigerant amount |
| CN110645672A (en) * | 2019-10-14 | 2020-01-03 | 南京天加环境科技有限公司 | Refrigerant shortage protection method for variable frequency air conditioner |
| CN110940040A (en) * | 2019-12-16 | 2020-03-31 | 宁波奥克斯电气股份有限公司 | Refrigerant detection and filling method and air conditioning system |
| CN111845278A (en) * | 2020-08-06 | 2020-10-30 | 黄燕嫦 | Energy-saving heat pump air conditioner for electric automobile |
| CN112303808A (en) * | 2020-10-28 | 2021-02-02 | 广东Tcl智能暖通设备有限公司 | Air conditioner control method and system and storage medium |
| CN114963528A (en) * | 2021-06-29 | 2022-08-30 | 青岛海尔新能源电器有限公司 | Refrigerant detection method, device, equipment and storage medium |
| CN114963528B (en) * | 2021-06-29 | 2023-08-18 | 青岛海尔新能源电器有限公司 | Refrigerant detection method, device, equipment and storage medium |
| WO2024077941A1 (en) * | 2022-10-14 | 2024-04-18 | 青岛海尔空调器有限总公司 | Refrigerant leakage detection method and apparatus for air conditioner, and air conditioner |
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