CN105091215A - Fluorine lack start-up detection method and device for multi-split air-conditioner - Google Patents
Fluorine lack start-up detection method and device for multi-split air-conditioner Download PDFInfo
- Publication number
- CN105091215A CN105091215A CN201510444304.1A CN201510444304A CN105091215A CN 105091215 A CN105091215 A CN 105091215A CN 201510444304 A CN201510444304 A CN 201510444304A CN 105091215 A CN105091215 A CN 105091215A
- Authority
- CN
- China
- Prior art keywords
- actual
- voltage value
- conditioner
- value
- fluorine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a fluorine lack start-up detection method and device for a multi-split air-conditioner. The method includes the following steps that the actual inner machine capacity, the actual connection pipe length and the actual fall height are obtained; after the air conditioner is started up, whether the running mode is a refrigerating mode or a heating mode is judged; according to the running mode, a compressor runs at preset fixed frequency under the mode; the outdoor environment temperature, an actual high-pressure value and an actual low-pressure value under the fixed frequency are obtained; a standard high-pressure value and a standard low-pressure value are obtained according to the actual inner machine capacity, the actual connection pipe length, the actual fall height, a mode judgment result and the outdoor environment temperature; if it is judged that the high-pressure difference value between the standard high-pressure value and the actual high-pressure value is larger than or equal to a preset high-pressure difference and the low-pressure difference value between the standard low-pressure value and the actual low-pressure value is larger than or equal to a preset low-pressure difference, the air conditioner is lacking in fluorine; and otherwise, the air conditioner is not lacking in fluorine. An existing air conditioner structure does not need to be changed, refrigerant leakage can be found in time, refrigerants can be supplemented, and the situation that damage is caused when the compressor runs for a long time under the condition of fluorine lack is avoided.
Description
Technical field
The present invention relates to the detection of air-conditioner, control technology field, particularly relate to start-up detection method and device that a kind of multi-gang air-conditioner lacks fluorine.
Background technology
Multi-gang air-conditioner is often because leave standstill for a long time or transport for long-distance and cause system to occur the phenomenon of leakage of refrigerant, leakage of refrigerant makes system be in the state of scarce fluorine, need in time air conditioner coolant adding, if coolant adding not in time, then can cause air-conditioner system hydraulic performance decline, air-conditioner long-play in scarce fluorine situation can cause compressor abrasion, damages compressor time serious.It is mostly judge according to cold medium flux, temperature gap, compressor current and power or comprehensive compressor current, power and temperature gap that traditional scarce fluorine start detects guard method; these determination methods often need to set up flow, electric current or temperature detection part, and the architectural feature not in conjunction with multi-gang air-conditioner itself judges.
Summary of the invention
Given this; the invention provides start-up detection method and device that a kind of multi-gang air-conditioner lacks fluorine; to realize judging under the prerequisite not changing original air conditioner structure whether air-conditioner lacks fluorine; and carry out stoppage protection in time when air conditioner lacks fluorine, effectively prevent the air-conditioner damage that long-play causes in scarce fluorine situation.
For reaching goal of the invention, the invention provides the start-up detection method that a kind of multi-gang air-conditioner lacks fluorine, comprising the following steps:
Machine capacity in the reality obtaining described multi-gang air-conditioner, actually connect pipe range and actual drop height;
After described multi-gang air-conditioner start, judge that this operational mode is refrigeration mode or heating mode, obtain mode decision result;
According to described mode decision result, compressor is run by the fixed frequency preset under this operational mode described;
Obtain the outdoor environment temperature that the temperature sensor under described fixed frequency detects, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects;
Connect pipe range, described actual drop height, described mode decision result and described outdoor environment temperature according to machine capacity, described reality in described reality, obtain corresponding standard high-voltage value and standard low pressure value;
Judge whether the high pressure difference of described standard high-voltage value and described actual high-voltage value is more than or equal to preset high-pressure difference, and whether the low pressure difference of described standard low pressure value and described actual low voltage value is more than or equal to pre-set low pressure difference;
If so, then judge that described multi-gang air-conditioner lacks fluorine;
If not, then judge that described multi-gang air-conditioner does not lack fluorine.
As a kind of embodiment, in the reality of the described multi-gang air-conditioner of described acquisition, machine capacity, actual connection pipe range and actual drop height, comprise the steps:
Machine capacity, connection pipe range and drop height in obtaining, according to the cubage correction coefficient prestored, pipe range correction factor and drop correction factor calculate machine capacity in described reality, described reality connects pipe range and described actual drop height;
Machine capacity, described reality in described reality are connected pipe range and described actual drop height preservation.
As a kind of embodiment, the outdoor environment temperature that the temperature sensor under the described fixed frequency of described acquisition detects, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects, comprise the steps:
Obtain the temperature value that described temperature sensor detects in Preset Time, and described temperature value is carried out mean value computation obtain described outdoor environment temperature;
Obtain the high-voltage value that described high pressure sensor detects in Preset Time, and described high-voltage value is carried out mean value computation and obtain described actual high-voltage value;
Obtain the low voltage value that described low pressure sensor detects in Preset Time, and described low voltage value is carried out mean value computation and obtain described actual low voltage value.
As a kind of embodiment, the described described outdoor environment temperature connecting pipe range, described actual drop height, described mode decision result and acquisition according to machine capacity in described reality, described reality, obtain corresponding standard high-voltage value and standard low pressure value, comprise the following steps:
The first default corresponding relation that described standard high-voltage value connects pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard high-voltage value by machine capacity in the described reality of preserving in advance, described reality obtains;
The second default corresponding relation that described standard low pressure value connects pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard low pressure value by machine capacity in the described reality of preserving in advance, described reality obtains.
As a kind of embodiment, after the fixed frequency preset under making compressor by this operational mode described according to described mode decision result is run, further comprising the steps of:
Under according to described mode decision output control, all indoor sets of multi-gang air-conditioner are in corresponding operational mode.
The start checkout gear that the present invention also provides a kind of multi-gang air-conditioner to lack fluorine, comprises the first acquisition module, operational mode judge module, runs module, the second acquisition module, and standard pressure value obtains module and scarce fluorine judge module, wherein:
Described first acquisition module, for obtain described multi-gang air-conditioner reality in machine capacity, actually connect pipe range and actual drop height;
Described operational mode judge module, after described multi-gang air-conditioner start, judges that this operational mode is refrigeration mode or heating mode, obtains mode decision result;
Described operation module, runs by the fixed frequency preset under this operational mode described for making compressor according to described mode decision result;
Described second acquisition module, for obtaining the outdoor environment temperature that temperature sensor detects under described fixed frequency, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects;
Described standard pressure value obtains module, for connecting pipe range, described actual drop height, described mode decision result and described outdoor environment temperature according to machine capacity, described reality in described reality, obtains corresponding standard high-voltage value and standard low pressure value;
Described scarce fluorine judge module, for judging whether the high pressure difference of described standard high-voltage value and described actual high-voltage value is more than or equal to preset high-pressure difference, and whether the low pressure difference of described standard low pressure value and described actual low voltage value is more than or equal to pre-set low pressure difference; If so, then judge that described multi-gang air-conditioner lacks fluorine, controls described compressor shutdown and sends warning message number; If not, then judge that described multi-gang air-conditioner does not lack fluorine, described multi-gang air-conditioner normally runs.
As a kind of embodiment, described first acquisition module comprises computing unit and storage unit, wherein:
Described computing unit, for obtaining interior machine capacity, connecting pipe range and drop height, according to the cubage correction coefficient prestored, pipe range correction factor and drop correction factor calculate machine capacity in described reality, described reality connects pipe range and described actual drop height;
Described storage unit, for connecting pipe range and described actual drop height preservation by machine capacity, described reality in described reality.
As a kind of embodiment, described second acquisition module comprises the first acquisition computing unit, and second obtains computing unit and the 3rd obtains computing unit, wherein:
Described first obtains computing unit, for obtaining the temperature value that described temperature sensor detects in Preset Time, and described temperature value is carried out mean value computation obtains described outdoor environment temperature;
Described second obtains computing unit, for obtaining the high-voltage value that described high pressure sensor detects in Preset Time, and described high-voltage value is carried out mean value computation and obtains described actual high-voltage value;
Described 3rd obtains computing unit, for obtaining the low voltage value that described low pressure sensor detects in Preset Time, and described low voltage value is carried out mean value computation and obtains described actual low voltage value.
As a kind of embodiment, standard pressure value obtains module and comprises standard high-voltage value acquisition unit and standard low pressure value acquisition module, wherein:
Described standard high-voltage value obtains unit, obtains described standard high-voltage value for the first default corresponding relation of machine capacity, described reality connection pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard high-voltage value in the described reality by preserving in advance;
Described standard low pressure value obtains module, obtains described standard low pressure value for the second default corresponding relation of machine capacity, described reality connection pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard low pressure value in the described reality by preserving in advance.
As a kind of embodiment, also comprise control module, under being in corresponding operational mode for all indoor sets of multi-gang air-conditioner according to described mode decision output control.
Beneficial effect of the present invention comprises:
Multi-gang air-conditioner of the present invention lacks start-up detection method and the device of fluorine, the feature of pressure sensor is provided with in conjunction with multi-gang air-conditioner, as token state, force value is judged whether multi-gang air-conditioner lacks fluorine, without the need to doing any change to multi-gang air-conditioner, only need on the basis of original hardware, realized by software, save hardware cost, and effectively judge whether multi-gang air-conditioner lacks fluorine in the scarce fluorine testing process of start operation phase increase, thus be conducive to Timeliness coverage secondary refrigerant leakage and coolant adding, avoid multi-gang air-conditioner problem that is standing or secondary refrigerant leakage after transporting for long-distance for a long time, effectively prevent the damage that long-play causes in scarce fluorine situation of the compressor of multi-gang air-conditioner.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of multi-gang air-conditioner.
Fig. 2 is the schematic flow sheet that multi-gang air-conditioner of the present invention lacks an embodiment of the start-up detection method of fluorine;
Fig. 3 is the schematic flow sheet that multi-gang air-conditioner of the present invention lacks another embodiment of the start-up detection method of fluorine;
Fig. 4 is the structural representation that multi-gang air-conditioner of the present invention lacks an embodiment of the start checkout gear of fluorine.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples the start-up detection method of fluorine is lacked to multi-gang air-conditioner of the present invention and device is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
See Fig. 1, Fig. 2, the embodiment of the present invention provides a kind of multi-gang air-conditioner to lack the start-up detection method of fluorine, comprises the following steps:
S100, machine capacity C in the reality obtaining multi-gang air-conditioner ', actual connect pipe range l' and actual drop height h'.
S200, after multi-gang air-conditioner start, judges that this operational mode is refrigeration mode or heating mode, obtains mode decision result.
S300, makes compressor by the fixed frequency f preset under this operational mode according to mode decision result
srun.
S400, obtains fixed frequency f
sunder temperature sensor detect outdoor environment temperature T, high pressure sensor detect actual high-voltage value p
hwith the actual low voltage value p that low pressure sensor detects
l.
S500, according to machine capacity C in actual ', actually connect pipe range l', actual drop height h', mode decision result and outdoor environment temperature T, obtain corresponding standard high-voltage value p
hswith standard low pressure value p
ls;
S600, criterion high-voltage value p
hswith actual high-voltage value p
hhigh pressure difference whether be more than or equal to preset high-pressure difference Δ p
h, and standard low pressure value p
lswith actual low voltage value p
llow pressure difference whether be more than or equal to pre-set low pressure difference Δ p
l.
S610, if so, then judges that multi-gang air-conditioner lacks fluorine.
S620, if not, then judges that multi-gang air-conditioner does not lack fluorine.
The multi-gang air-conditioner of the embodiment of the present invention lacks the start-up detection method of fluorine, for particular system (interior machine capacity, connect pipe range and drop height all fixing, standard coolant quantity), specific operation (refrigeration or refrigeration mode, compressor operating is in fixed frequency, and there is not the faults such as secondary refrigerant leakage) under, the feature that in system pipeline, the force value of each point substantially remains unchanged in a certain small scope, the feature of pressure sensor is generally all provided with in conjunction with multi-gang air-conditioner, as token state, force value is judged whether multi-gang air-conditioner lacks fluorine, without the need to doing any change to multi-gang air-conditioner, only need on the basis of original hardware, realized by software, save hardware cost, and effectively judge whether multi-gang air-conditioner lacks fluorine in the scarce fluorine testing process of start operation phase increase, thus be conducive to Timeliness coverage secondary refrigerant leakage and coolant adding, avoid multi-gang air-conditioner problem that is standing or secondary refrigerant leakage after transporting for long-distance for a long time, effectively prevent the damage that long-play causes in scarce fluorine situation of the compressor of multi-gang air-conditioner.Preferably; wherein in an embodiment; when judging that multi-gang air-conditioner lacks fluorine; control compressor shutdown and send alarm signal; when multi-gang air-conditioner lacks fluorine; timely control compressor shutdown can effectively avoid compressor to run the wearing and tearing caused in scarce fluorine situation, and alarm signal can notify that user's multi-gang air-conditioner lacks fluorine and needs coolant adding in time.When judging that multi-gang air-conditioner device does not lack fluorine, then control it and turn to normal operation, do not need to reopen, meet user's user demand.
Figure 1 shows that the structural representation of a multi-gang air-conditioner, it comprises off-premises station 1000 and multiple indoor set 2000, each indoor set 2000 comprises evaporimeter 2001 (during refrigeration) and electric expansion valve 2002 electric expansion valve 2002 is arranged on the pipeline of evaporimeter 2001 one end, off-premises station 1000 comprises compressor 1001 and condenser 1002 (during refrigeration), the pipeline that indoor set is not provided with electric expansion valve is by tracheae stop valve 1003 and cross valve 1004 inlet communication with compressor 1001, the pipeline that compressor 1001 is connected with cross valve 1004 is provided with gas-liquid separator 1005, for gaseous state is separated with liquid refrigerants, avoid liquid hammer compressor, low-pressure side (the air inlet place of compressor 1001, or on pipeline between gas-liquid separator 1005 and compressor 1001) be provided with low pressure sensor 1006, for the low voltage value of signal piping, the outlet of compressor 1001 is by the inlet communication of cross valve 1004 with condenser 1002, oil eliminator 1007 is provided with between compressor 1001 and cross valve 1001, for the lubricating oil separation in high steam that compressor is discharged, and turn back to gas-liquid separator 1005 by capillary 1008 and magnetic valve 1009, with lubricate compressors 1001, prevent compressor abrasion, (gas outlet place, compressor high-pressure side, or on pipeline between compressor and gas separating device) be provided with high pressure sensor 1010, for the high-voltage value of signal piping, the return line that the outlet of condenser 1002 is consisted of check valve 1011 and electric expansion valve 1012, the management that pressure pipe stop valve 1013 is provided with electric expansion valve 2002 with indoor set 2000 is communicated with, realize the circulation of refrigerant in multi-gang air-conditioner.
It should be noted that, after multi-gang air-conditioner installs, the interior machine capacity of its correspondence, connect pipe range and drop height generally no longer changes, machine capacity C, connection pipe range l and drop height h in input, now system can calculate its correspondence voluntarily reality in machine capacity C ', actually connect pipe range l' and actual drop height h', and for subsequent step.Criterion under refrigeration mode and heating mode is different, and its criterion is arranged respectively, and as in cooling mode, the fixed frequency of setting compressor operating is f
s1, detecting the outdoor environment temperature obtained is T
1, actual high-voltage value is p
h1, actual low voltage value is p
l1, outdoor environment temperature T
1corresponding standard high-voltage value is set as p
hs1, standard low pressure value is set as p
ls1, preset high-pressure difference is set as Δ p
h1, pre-set low pressure difference is set as Δ p
l1; In a heating mode, the fixed frequency setting compressor operating is f
s2, detecting the outdoor environment temperature obtained is T
2, actual high-voltage value is p
h2, actual low voltage value is p
l2, outdoor environment temperature T
2corresponding standard high-voltage value is set as p
hs2, standard low pressure value is set as p
ls2, preset high-pressure difference is set as Δ p
h2, pre-set low pressure difference is set as Δ p
l2.Wherein, machine capacity C in actual ', the actual difference connecting the aspects such as pipe range l', border drop height h', operational mode, compressor operating frequency f and environment temperature T, all can the force value of influential system specified point.Be fixed frequency f by compressor operating frequency setting
s, except having the advantage of the detection part saving detection compressor operating frequency, also reduce conditional-variable during force value multilevel iudge, be convenient to the realization that multi-gang air-conditioner lacks fluorine detection.
As a kind of embodiment, see Fig. 3, step S100 comprises the steps:
S110, machine capacity C in obtaining, connects pipe range l and drop height h, according to the cubage correction coefficient a prestored, pipe range correction factor b and drop correction factor c calculate actual in machine capacity C ', actually connect pipe range l' and actual drop height h'.
S120, by machine capacity C in reality ', the actual pipe range l' and actual drop height h' that connects preserves.
Cubage correction coefficient a, pipe range correction factor b and drop correction factor c and interior machine capacity C, the relation being connected pipe range l and drop height h are determined by experiment, interior machine capacity C, connect pipe range l and drop height h by machine capacity C in the reality that obtains more accurately reflecting multi-gang air-conditioner after corresponding correction factor correction ', be actually connected pipe range l' and actual drop height h'.
As a kind of embodiment, step S400 comprises the steps:
S410, obtain the temperature value that temperature sensor detects in preset time t, and temperature value is carried out mean value computation obtain outdoor environment temperature, using the mean value of temperature value that detects in preset time t as outdoor environment temperature, reflect outdoor environment temperature more accurately.
S420, obtains the high-voltage value that detects in preset time t of high pressure sensor, and high-voltage value is carried out mean value computation obtains actual high-voltage value.
S430, obtains the low voltage value that detects in preset time t of low pressure sensor, and low voltage value is carried out mean value computation obtains actual low voltage value.
Using the mean value of high-voltage value that detects in preset time t as actual high-voltage value, using the mean value of low voltage value that detects in preset time t as actual low voltage value, reflect the force value of test point more accurately, owing to judging that condition that whether multi-gang air-conditioner lacks fluorine is that the force value of test point remains unchanged in a certain small scope, therefore obtain force value more accurately and be conducive to improving the accuracy and reliability that scarce fluorine detects.
As a kind of embodiment, step 500 comprises the steps:
S510, standard high-voltage value by machine capacity C in the reality of preserving in advance ', actually connect pipe range l', actual drop height h', operational mode, outdoor environment temperature T and standard high-voltage value p
hsfirst preset corresponding relation obtain.
S520, standard low pressure value by machine capacity C in the reality of preserving in advance ', actually connect pipe range l', actual drop height h', operational mode, outdoor environment temperature T and standard low pressure value p
lssecond preset corresponding relation obtain.
In the present embodiment, as a kind of preferred version, first presets corresponding relation, the second default corresponding relation is the table of comparisons, concrete, in advance machine capacity in actual, the actual table of comparisons connecting pipe range, actual drop height, operational mode, outdoor environment temperature and standard high-voltage value, standard low pressure value corresponding are preserved, during work, search the table of comparisons obtain standard high-voltage value and standard low pressure value according to actual interior machine capacity, actual connection pipe range, actual drop height, operational mode, outdoor environment temperature.In another preferred embodiment, first pass of presetting corresponding relation and the second default correspondence is operational formula, concrete, formula will be run in advance preserve, operationally, acquisition standard low pressure value and standard high-voltage value is calculated according to actual interior machine capacity, actual connection pipe range, actual drop height, operational mode, outdoor environment temperature respectively by operational formula.
What deserves to be explained is, for interior machine capacity C, connect the multi-gang air-conditioner all determined of pipe range l and drop height h, setting operational mode, the fixed frequency of compressor operating and after detecting outdoor environment temperature, its reference pressure value can be determined.Wherein, outdoor environment temperature and force value obtain by measuring in advance.
As a kind of embodiment, after operating procedure S300, also comprise step S300 ', under being in corresponding operational mode according to all indoor sets of mode decision output control multi-gang air-conditioner.If certain indoor set does not run, the refrigerant of its correspondence may flow less than outdoor pusher side, and the force value now detected may diminish, and impact lacks accuracy and the reliability of fluorine detection.Simultaneously, because the quantity of indoor set start is different, accurate, reliability that scarce fluorine detects may be affected, for ensureing that the pressure of each point in pipeline detects all at identical conditions, therefore, when starting scarce fluorine and detecting, control all indoor sets and be all in power on mode.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory, ROM) or random store-memory body (RandomAccessMemory, RAM) etc.
Based on same inventive concept, present invention also offers the start checkout gear that a kind of multi-gang air-conditioner lacks fluorine, the principle of dealing with problems due to this device is similar to the start-up detection method that aforementioned a kind of multi-gang air-conditioner lacks fluorine, therefore the enforcement of this system see the enforcement of preceding method, can repeat part and repeats no more.
The multi-gang air-conditioner that the embodiment of the present invention provides lacks the start checkout gear of fluorine, see Fig. 4, comprises the first acquisition module 100, operational mode judge module 200, run module 300, second acquisition module 400, standard pressure value obtains module 500 and scarce fluorine judge module 600.Wherein: the first acquisition module 100, for obtain multi-gang air-conditioner reality in machine capacity C ', actually connect pipe range l' and actual drop height h'.Operational mode judge module 200, after multi-gang air-conditioner start, judges that this operational mode is refrigeration mode or heating mode, obtains mode decision result.Run module 300, for making compressor by the fixed frequency f preset under this operational mode according to mode decision result
srun.Second acquisition module 400, for obtaining fixed frequency f
sthe outdoor environment temperature T that lower temperature sensor detects, the actual high-voltage value p that high pressure sensor detects
hwith the actual low voltage value p that low pressure sensor detects
l.Standard pressure value obtains module 500, for according to machine capacity C in actual ', actually connect pipe range l', actual drop height h', mode decision result and outdoor environment temperature T, obtain corresponding standard high-voltage value p
hswith standard low pressure value p
ls.Lack fluorine judge module 600, for criterion high-voltage value p
hswith actual high-voltage value p
hhigh pressure difference whether be more than or equal to preset high-pressure difference Δ p
h, and standard low pressure value p
lswith actual low voltage value p
llow pressure difference whether be more than or equal to pre-set low pressure difference Δ p
l; If so, then judge that multi-gang air-conditioner lacks fluorine; If not, then judge that multi-gang air-conditioner does not lack fluorine.
The multi-gang air-conditioner of the embodiment of the present invention lacks the start checkout gear of fluorine, the architectural feature of pressure sensor is provided with in conjunction with multi-gang air-conditioner self, using force value as judging that multi-gang air-conditioner lacks fluorine whether index, without the need to changing the original structure of multi-gang air-conditioner, also without the need to increasing miscellaneous part, on the basis of original hardware, realized by software, save hardware cost, and avoid multi-gang air-conditioner problem that is standing or secondary refrigerant leakage after transporting for long-distance for a long time, increase in the start operation phase and lack fluorine testing process, be conducive to Timeliness coverage secondary refrigerant leakage and coolant adding, prevent the multi-gang air-conditioner damage that long-play causes in scarce fluorine situation.
As a kind of embodiment, the first acquisition module 100 comprises computing unit 110 and storage unit 120.Wherein: computing unit 110, for obtaining interior machine capacity C, connecting pipe range l and drop height h, according to the cubage correction coefficient a prestored, pipe range correction factor b and drop correction factor c calculate actual in machine capacity C ', actually connect pipe range l' and actual drop height h'.Storage unit 120, for by machine capacity C in reality ', the actual pipe range l' and actual drop height h' that connects preserves.
As a kind of embodiment, the second acquisition module 400 comprises the first acquisition computing unit 410, second and obtains computing unit 420 and the 3rd acquisition computing unit 430.Wherein: first obtains computing unit 410, for obtaining the temperature value that temperature sensor detects in preset time t, and temperature value is carried out mean value computation obtains outdoor environment temperature.Second obtains computing unit 420, obtains the high-voltage value that detects in preset time t of high pressure sensor, and high-voltage value is carried out mean value computation obtains actual high-voltage value.3rd obtains computing unit 430, for obtaining the low voltage value that low pressure sensor detects in preset time t, and low voltage value is carried out mean value computation obtains actual low voltage value.
As a kind of embodiment, standard pressure value obtains module 500 and comprises standard high-voltage value acquisition unit 510 and standard low pressure value acquisition module 520.Wherein: standard high-voltage value obtains unit 510, for by machine capacity C in the reality of preserving in advance ', actually connect pipe range l', actual drop height h', operational mode, outdoor environment temperature T and standard high-voltage value p
hsfirst preset corresponding relation and obtain standard high-voltage value p
hs.Standard low pressure value obtains module 520, for by machine capacity C in the reality of preserving in advance ', actually connect pipe range l', actual drop height h', operational mode, outdoor environment temperature T and standard low pressure value p
lssecond preset corresponding relation and obtain standard low pressure value p
ls.
As a kind of embodiment, also comprise control module 300 ', under being in corresponding operational mode according to all indoor sets of mode decision output control multi-gang air-conditioner.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively 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 the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. multi-gang air-conditioner lacks a start-up detection method for fluorine, it is characterized in that, comprises the following steps:
Machine capacity in the reality obtaining described multi-gang air-conditioner, actually connect pipe range and actual drop height;
After described multi-gang air-conditioner start, judge that this operational mode is refrigeration mode or heating mode, obtain mode decision result;
According to described mode decision result, compressor is run by the fixed frequency preset under this operational mode described;
Obtain the outdoor environment temperature that the temperature sensor under described fixed frequency detects, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects;
Connect pipe range, described actual drop height, described mode decision result and described outdoor environment temperature according to machine capacity, described reality in described reality, obtain corresponding standard high-voltage value and standard low pressure value;
Judge whether the high pressure difference of described standard high-voltage value and described actual high-voltage value is more than or equal to preset high-pressure difference, and whether the low pressure difference of described standard low pressure value and described actual low voltage value is more than or equal to pre-set low pressure difference;
If so, then judge that described multi-gang air-conditioner lacks fluorine;
If not, then judge that described multi-gang air-conditioner does not lack fluorine.
2. multi-gang air-conditioner according to claim 1 lacks the start-up detection method of fluorine, it is characterized in that, in the reality of the described multi-gang air-conditioner of described acquisition, machine capacity, actual connection pipe range and actual drop height, comprise the steps:
Machine capacity, connection pipe range and drop height in obtaining, according to the cubage correction coefficient prestored, pipe range correction factor and drop correction factor calculate machine capacity in described reality, described reality connects pipe range and described actual drop height;
Machine capacity, described reality in described reality are connected pipe range and described actual drop height preservation.
3. multi-gang air-conditioner according to claim 1 lacks the start-up detection method of fluorine, it is characterized in that, the outdoor environment temperature that temperature sensor under the described fixed frequency of described acquisition detects, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects, comprise the steps:
Obtain the temperature value that described temperature sensor detects in Preset Time, and described temperature value is carried out mean value computation obtain described outdoor environment temperature;
Obtain the high-voltage value that described high pressure sensor detects in Preset Time, and described high-voltage value is carried out mean value computation and obtain described actual high-voltage value;
Obtain the low voltage value that described low pressure sensor detects in Preset Time, and described low voltage value is carried out mean value computation and obtain described actual low voltage value.
4. multi-gang air-conditioner according to claim 1 lacks the start-up detection method of fluorine, it is characterized in that, the described described outdoor environment temperature connecting pipe range, described actual drop height, described mode decision result and acquisition according to machine capacity in described reality, described reality, obtain corresponding standard high-voltage value and standard low pressure value, comprise the following steps:
The first default corresponding relation that described standard high-voltage value connects pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard high-voltage value by machine capacity in the described reality of preserving in advance, described reality obtains;
The second default corresponding relation that described standard low pressure value connects pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard low pressure value by machine capacity in the described reality of preserving in advance, described reality obtains.
5. according to any one of Claims 1-4, multi-gang air-conditioner lacks the start-up detection method of fluorine, it is characterized in that, described make compressor by this operational mode described according to described mode decision result under preset fixed frequency run after, further comprising the steps of:
Under according to described mode decision output control, all indoor sets of multi-gang air-conditioner are in corresponding operational mode.
6. multi-gang air-conditioner lacks a start checkout gear for fluorine, it is characterized in that, comprises the first acquisition module, operational mode judge module, runs module, the second acquisition module, and standard pressure value obtains module and scarce fluorine judge module, wherein:
Described first acquisition module, for obtain described multi-gang air-conditioner reality in machine capacity, actually connect pipe range and actual drop height;
Described operational mode judge module, after described multi-gang air-conditioner start, judges that this operational mode is refrigeration mode or heating mode, obtains mode decision result;
Described operation module, runs by the fixed frequency preset under this operational mode described for making compressor according to described mode decision result;
Described second acquisition module, for obtaining the outdoor environment temperature that temperature sensor detects under described fixed frequency, the actual high-voltage value that high pressure sensor detects and the actual low voltage value that low pressure sensor detects;
Described standard pressure value obtains module, for connecting pipe range, described actual drop height, described mode decision result and described outdoor environment temperature according to machine capacity, described reality in described reality, obtains corresponding standard high-voltage value and standard low pressure value;
Described scarce fluorine judge module, for judging whether the high pressure difference of described standard high-voltage value and described actual high-voltage value is more than or equal to preset high-pressure difference, and whether the low pressure difference of described standard low pressure value and described actual low voltage value is more than or equal to pre-set low pressure difference; If so, then judge that described multi-gang air-conditioner lacks fluorine, controls described compressor shutdown and sends warning message number; If not, then judge that described multi-gang air-conditioner does not lack fluorine, described multi-gang air-conditioner normally runs.
7. multi-gang air-conditioner according to claim 6 lacks the start checkout gear of fluorine, it is characterized in that, described first acquisition module comprises computing unit and storage unit, wherein:
Described computing unit, for obtaining interior machine capacity, connecting pipe range and drop height, according to the cubage correction coefficient prestored, pipe range correction factor and drop correction factor calculate machine capacity in described reality, described reality connects pipe range and described actual drop height;
Described storage unit, for connecting pipe range and described actual drop height preservation by machine capacity, described reality in described reality.
8. multi-gang air-conditioner according to claim 6 lacks the start checkout gear of fluorine, it is characterized in that, described second acquisition module comprises the first acquisition computing unit, and second obtains computing unit and the 3rd obtains computing unit, wherein:
Described first obtains computing unit, for obtaining the temperature value that described temperature sensor detects in Preset Time, and described temperature value is carried out mean value computation obtains described outdoor environment temperature;
Described second obtains computing unit, for obtaining the high-voltage value that described high pressure sensor detects in Preset Time, and described high-voltage value is carried out mean value computation and obtains described actual high-voltage value;
Described 3rd obtains computing unit, for obtaining the low voltage value that described low pressure sensor detects in Preset Time, and described low voltage value is carried out mean value computation and obtains described actual low voltage value.
9. multi-gang air-conditioner according to claim 6 lacks the start checkout gear of fluorine, it is characterized in that, standard pressure value obtains module and comprises standard high-voltage value acquisition unit and standard low pressure value acquisition module, wherein:
Described standard high-voltage value obtains unit, obtains described standard high-voltage value for the first default corresponding relation of machine capacity, described reality connection pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard high-voltage value in the described reality by preserving in advance;
Described standard low pressure value obtains module, obtains described standard low pressure value for the second default corresponding relation of machine capacity, described reality connection pipe range, described actual drop height, operational mode, described outdoor environment temperature and described standard low pressure value in the described reality by preserving in advance.
10. according to any one of claim 6 to 9, multi-gang air-conditioner lacks the start checkout gear of fluorine, it is characterized in that, also comprise control module, under being in corresponding operational mode for all indoor sets of multi-gang air-conditioner according to described mode decision output control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444304.1A CN105091215B (en) | 2015-07-24 | 2015-07-24 | Multi-gang air-conditioner lacks the start-up detection method and device of fluorine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444304.1A CN105091215B (en) | 2015-07-24 | 2015-07-24 | Multi-gang air-conditioner lacks the start-up detection method and device of fluorine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105091215A true CN105091215A (en) | 2015-11-25 |
| CN105091215B CN105091215B (en) | 2018-02-09 |
Family
ID=54572209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510444304.1A Active CN105091215B (en) | 2015-07-24 | 2015-07-24 | Multi-gang air-conditioner lacks the start-up detection method and device of fluorine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105091215B (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016868A (en) * | 2016-06-02 | 2016-10-12 | 珠海格力电器股份有限公司 | Method for automatically adding refrigerant to air-conditioner system |
| CN106247676A (en) * | 2016-08-16 | 2016-12-21 | 广东美的暖通设备有限公司 | The control method of air-conditioner, control device and air-conditioner |
| CN106322680A (en) * | 2016-09-07 | 2017-01-11 | 珠海格力电器股份有限公司 | Alarm device and method for air conditioner |
| CN106500249A (en) * | 2016-10-31 | 2017-03-15 | 芜湖美智空调设备有限公司 | The method of air-conditioner coolant leak detection and its control device |
| CN106594973A (en) * | 2016-11-14 | 2017-04-26 | 珠海格力电器股份有限公司 | Method and device for detecting refrigerant of air-conditioning system as well as air conditioner |
| CN107576112A (en) * | 2017-09-19 | 2018-01-12 | 青岛海尔空调器有限总公司 | Detection method and device, air-conditioning for refrigerant leakage |
| WO2018058732A1 (en) * | 2016-09-29 | 2018-04-05 | 广东美的制冷设备有限公司 | Refrigerant leakage protection and control method, controller, and air conditioner |
| CN109143063A (en) * | 2018-11-01 | 2019-01-04 | 格力电器（武汉）有限公司 | A kind of detection device and method of air-conditioning high and low voltage switch |
| CN109539458A (en) * | 2018-10-29 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of lack of fluorine of air-conditioners detection method, detection device and air-conditioning |
| CN110104009A (en) * | 2019-04-23 | 2019-08-09 | 广州鼎汉轨道交通车辆装备有限公司 | A kind of intelligent track traffic air-conditioning and its control method |
| CN110736185A (en) * | 2019-09-10 | 2020-01-31 | 杭州睿桦节能科技有限公司 | Safety control program for R32R290 refrigerant air conditioner and production process thereof |
| CN110762785A (en) * | 2018-07-26 | 2020-02-07 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN110762743A (en) * | 2018-07-26 | 2020-02-07 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN111678239A (en) * | 2020-05-20 | 2020-09-18 | 浙江中广电器股份有限公司 | Quantitative method for additional refrigerant, processor and air conditioner |
| CN112665107A (en) * | 2020-12-21 | 2021-04-16 | 广东美的暖通设备有限公司 | Refrigerant leakage detection method, device and equipment |
| CN113639402A (en) * | 2021-07-12 | 2021-11-12 | 青岛海尔空调电子有限公司 | Refrigerant leakage detection and discharge method for air conditioner |
| CN114234372A (en) * | 2021-12-15 | 2022-03-25 | 珠海格力电器股份有限公司 | Control method and device of modular multi-split air conditioner, multi-split air conditioner system and storage medium |
| CN115077062A (en) * | 2022-06-10 | 2022-09-20 | 宁波奥克斯电气股份有限公司 | Multi-connected air conditioner fluorine deficiency prompt control method and device and air conditioner |
| CN115200162A (en) * | 2022-07-12 | 2022-10-18 | 珠海格力电器股份有限公司 | Air conditioner fluorine deficiency detection method and system and air conditioner |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090582A (en) * | 2001-09-20 | 2003-03-28 | Fujitsu General Ltd | Control method for air conditioner |
| KR100432224B1 (en) * | 2002-05-01 | 2004-05-20 | 삼성전자주식회사 | Refrigerant leakage detecting method for air conditioner |
| CN1782577A (en) * | 2004-11-29 | 2006-06-07 | 乐金电子(天津)电器有限公司 | Device and method for prompting cold medium shortage of air conditioner |
| CN101504177A (en) * | 2008-02-05 | 2009-08-12 | Lg电子株式会社 | Air conditioning apparatus and method for determining the amount of refrigerant of air-conditioning apparatus |
| JP2011163708A (en) * | 2010-02-12 | 2011-08-25 | Toshiba Carrier Corp | Air conditioner |
| CN103363617A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Detection method and detection device for fluorine lack of air conditioner, and air conditioner |
| CN104633864A (en) * | 2015-02-05 | 2015-05-20 | 珠海格力电器股份有限公司 | Coolant leakage detection method and device for air condition and air condition outdoor unit |
-
2015
- 2015-07-24 CN CN201510444304.1A patent/CN105091215B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003090582A (en) * | 2001-09-20 | 2003-03-28 | Fujitsu General Ltd | Control method for air conditioner |
| KR100432224B1 (en) * | 2002-05-01 | 2004-05-20 | 삼성전자주식회사 | Refrigerant leakage detecting method for air conditioner |
| CN1782577A (en) * | 2004-11-29 | 2006-06-07 | 乐金电子(天津)电器有限公司 | Device and method for prompting cold medium shortage of air conditioner |
| CN101504177A (en) * | 2008-02-05 | 2009-08-12 | Lg电子株式会社 | Air conditioning apparatus and method for determining the amount of refrigerant of air-conditioning apparatus |
| JP2011163708A (en) * | 2010-02-12 | 2011-08-25 | Toshiba Carrier Corp | Air conditioner |
| CN103363617A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Detection method and detection device for fluorine lack of air conditioner, and air conditioner |
| CN104633864A (en) * | 2015-02-05 | 2015-05-20 | 珠海格力电器股份有限公司 | Coolant leakage detection method and device for air condition and air condition outdoor unit |
Cited By (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016868B (en) * | 2016-06-02 | 2018-10-02 | 珠海格力电器股份有限公司 | A kind of method of the automatic addition refrigerant of air-conditioning system |
| CN106016868A (en) * | 2016-06-02 | 2016-10-12 | 珠海格力电器股份有限公司 | Method for automatically adding refrigerant to air-conditioner system |
| CN106247676B (en) * | 2016-08-16 | 2019-03-29 | 广东美的暖通设备有限公司 | Control method, control device and the air conditioner of air conditioner |
| CN106247676A (en) * | 2016-08-16 | 2016-12-21 | 广东美的暖通设备有限公司 | The control method of air-conditioner, control device and air-conditioner |
| CN106322680A (en) * | 2016-09-07 | 2017-01-11 | 珠海格力电器股份有限公司 | Alarm device and method for air conditioner |
| CN106322680B (en) * | 2016-09-07 | 2018-08-07 | 珠海格力电器股份有限公司 | A kind of air-conditioning warning device and method |
| WO2018058732A1 (en) * | 2016-09-29 | 2018-04-05 | 广东美的制冷设备有限公司 | Refrigerant leakage protection and control method, controller, and air conditioner |
| CN106500249A (en) * | 2016-10-31 | 2017-03-15 | 芜湖美智空调设备有限公司 | The method of air-conditioner coolant leak detection and its control device |
| CN106594973A (en) * | 2016-11-14 | 2017-04-26 | 珠海格力电器股份有限公司 | Method and device for detecting refrigerant of air-conditioning system as well as air conditioner |
| CN107576112A (en) * | 2017-09-19 | 2018-01-12 | 青岛海尔空调器有限总公司 | Detection method and device, air-conditioning for refrigerant leakage |
| CN110762743A (en) * | 2018-07-26 | 2020-02-07 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN110762785B (en) * | 2018-07-26 | 2021-05-18 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN110762785A (en) * | 2018-07-26 | 2020-02-07 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN110762743B (en) * | 2018-07-26 | 2021-05-18 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
| CN109539458B (en) * | 2018-10-29 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of lack of fluorine of air-conditioners detection method, detection device and air-conditioning |
| CN109539458A (en) * | 2018-10-29 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of lack of fluorine of air-conditioners detection method, detection device and air-conditioning |
| CN109143063B (en) * | 2018-11-01 | 2023-09-12 | 格力电器（武汉）有限公司 | Detection device and method for high-low voltage switch of air conditioner |
| CN109143063A (en) * | 2018-11-01 | 2019-01-04 | 格力电器（武汉）有限公司 | A kind of detection device and method of air-conditioning high and low voltage switch |
| CN110104009A (en) * | 2019-04-23 | 2019-08-09 | 广州鼎汉轨道交通车辆装备有限公司 | A kind of intelligent track traffic air-conditioning and its control method |
| CN110736185A (en) * | 2019-09-10 | 2020-01-31 | 杭州睿桦节能科技有限公司 | Safety control program for R32R290 refrigerant air conditioner and production process thereof |
| CN111678239A (en) * | 2020-05-20 | 2020-09-18 | 浙江中广电器股份有限公司 | Quantitative method for additional refrigerant, processor and air conditioner |
| CN111678239B (en) * | 2020-05-20 | 2022-04-19 | 浙江中广电器集团股份有限公司 | Quantitative method for additional refrigerant, processor and air conditioner |
| CN112665107A (en) * | 2020-12-21 | 2021-04-16 | 广东美的暖通设备有限公司 | Refrigerant leakage detection method, device and equipment |
| CN112665107B (en) * | 2020-12-21 | 2023-03-14 | 广东美的暖通设备有限公司 | Refrigerant leakage detection method, device and equipment |
| CN113639402A (en) * | 2021-07-12 | 2021-11-12 | 青岛海尔空调电子有限公司 | Refrigerant leakage detection and discharge method for air conditioner |
| CN113639402B (en) * | 2021-07-12 | 2024-03-22 | 青岛海尔空调电子有限公司 | Refrigerant leakage detection and discharge method for air conditioner |
| CN114234372B (en) * | 2021-12-15 | 2022-11-01 | 珠海格力电器股份有限公司 | Control method and device of modular multi-split air conditioner, multi-split air conditioner system and storage medium |
| CN114234372A (en) * | 2021-12-15 | 2022-03-25 | 珠海格力电器股份有限公司 | Control method and device of modular multi-split air conditioner, multi-split air conditioner system and storage medium |
| CN115077062A (en) * | 2022-06-10 | 2022-09-20 | 宁波奥克斯电气股份有限公司 | Multi-connected air conditioner fluorine deficiency prompt control method and device and air conditioner |
| CN115077062B (en) * | 2022-06-10 | 2023-09-08 | 宁波奥克斯电气股份有限公司 | Fluorine-deficiency prompting control method and device for multi-connected air conditioner and air conditioner |
| CN115200162A (en) * | 2022-07-12 | 2022-10-18 | 珠海格力电器股份有限公司 | Air conditioner fluorine deficiency detection method and system and air conditioner |
| CN115200162B (en) * | 2022-07-12 | 2023-11-10 | 珠海格力电器股份有限公司 | Air conditioner fluorine deficiency detection method and system and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105091215B (en) | 2018-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105091215A (en) | Fluorine lack start-up detection method and device for multi-split air-conditioner | |
| CN100476323C (en) | Diagnosing a loss of refrigerant charge in a refrigerant system | |
| CN103293010B (en) | Method and device and system for detecting air conditioner coolants | |
| AU2002309020B2 (en) | Refrigerator | |
| CN100529604C (en) | Loss of refrigerant charge and expansion valve malfunction detection | |
| JP5210510B2 (en) | Refrigerant filling amount determination method and refrigerant leakage detection method for multi-air conditioning system | |
| CN106016621B (en) | A kind of leak detection control method of multi-online air-conditioning system | |
| US11079300B2 (en) | Air cooling heat pump system, refrigerant leakage detection method and detection system air cooling heat pump system thereof | |
| WO2021073098A1 (en) | Fixed-frequency air conditioner refrigerant-deficient protection method | |
| CN110906505B (en) | Air conditioner refrigerant leakage detection method and air conditioner | |
| US20200041152A1 (en) | Control method of multi-split air conditioner, system, and computer readable storage medium | |
| CN108224849B (en) | Oil return control method for air conditioner | |
| CN101813396A (en) | Air conditioning unit and method for detecting oil level of compressor thereof | |
| EP3553424A1 (en) | Detection apparatus and method for refrigerant leakage of air source cooling only system | |
| US11732939B2 (en) | Detection apparatus and method for refrigerant leakage of air source heat pump system | |
| CN105674507A (en) | Method and device for detecting refrigerants of air conditioner | |
| CN110686390B (en) | Control method and system for preventing mainboard condensation of frequency converter and air conditioner | |
| WO2020177284A1 (en) | Control method and control system for preventing liquid hammer in compressor of air conditioner | |
| CN105627612A (en) | Outdoor unit refrigerant pipeline system, air conditioner and refrigeration control method for air conditioner | |
| CN109297148B (en) | Heat pump unit, its cooling activation low-voltage variation method, computer equipment and storage medium | |
| CN102980327A (en) | Lubricating oil level detecting device and method in air-conditioning system | |
| CN115523604A (en) | Multi-split-unit fault detection method and device and multi-split-unit | |
| CN116538638A (en) | Refrigerant leakage detection method and air conditioning system | |
| CN1987397A (en) | Method for detecting electronic expansion valve imperfect of composite air conditioner over cooling device | |
| WO2020070793A1 (en) | Refrigeration cycle apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |