CN101526259A - Detection and protection method of lack of fluorine of air-conditioners - Google Patents
- ️Wed Sep 09 2009
CN101526259A - Detection and protection method of lack of fluorine of air-conditioners - Google Patents
Detection and protection method of lack of fluorine of air-conditioners Download PDFInfo
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Publication number
- CN101526259A CN101526259A CN200910097291A CN200910097291A CN101526259A CN 101526259 A CN101526259 A CN 101526259A CN 200910097291 A CN200910097291 A CN 200910097291A CN 200910097291 A CN200910097291 A CN 200910097291A CN 101526259 A CN101526259 A CN 101526259A Authority
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- China Prior art keywords
- air
- fluorine
- lack
- delta
- conditioners Prior art date
- 2009-03-31 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.)
- Pending
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- 229910052731 fluorine Inorganic materials 0.000 title claims abstract description 71
- 239000011737 fluorine Substances 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 title abstract 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 63
- 238000004378 air conditioning Methods 0.000 claims description 57
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract 1
- 238000003745 diagnosis Methods 0.000 abstract 1
- 238000013480 data collection Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- HXELGNKCCDGMMN-UHFFFAOYSA-N [F].[Cl] Chemical compound [F].[Cl] HXELGNKCCDGMMN-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a detection and protection method of lack of fluorine of air-conditioners, comprising the following steps: a compressor runs under the state of sufficient fluorine and the absolute value of the difference value between the temperature value of an internal coil tube of the compressor and the temperature value of the environment is set at least as delta T0; cooling or heating mode is selected; after the compressor is started up to run for some time, the temperature values of the internal coil tube and the environment are measured and the absolute value delta T1 of the difference value between the temperature values of the internal coil tube and the environment is compared with the delta T0; if delta T1 is more than or equal to delta T0, the air-conditioners are diagnosed to not lack fluorine; if delta T1 is less than delta T0, the air-conditioners are diagnosed to lack fluorine and alarm; after the compressor keeps running for some time, the temperature values of the internal coil tube and the environment are measured again and the absolute value delta T2 of the difference value between the temperature values of the internal coil tube and the environment is compared with the delta T0; if delta T2 is more than or equal to delta T0, the air-conditioners are diagnosed to not lack fluorine and the alarm is gotten rid of; if delta T2 is less than delta T0, the air-conditioners are diagnosed to lack fluorine and stop running. The method solves the problems of difficult operation of artificially detecting lack of fluorine and low diagnosis accuracy.
Description
Technical field
The present invention relates to a kind of method of utilizing the air-conditioning inner coil pipe temperature and the absolute value of the difference of indoor environment temperature to compare with reference temperature value and judge that whether air-conditioning lacks the self-protecting method of air-conditioning behind fluorine and the scarce fluorine, specifically is a kind of detection and guard method of lack of fluorine of air-conditioners.
Background technology
At present, the cold-producing medium of air-conditioning mainly is a freon, it is a kind of fluorine chlorine compound, the characteristic that has easy evaporation and liquefy easily, absorb heat during evaporation, release heat during liquefaction, air-conditioning utilizes this specific character just and realizes transmission to energy, reach refrigeration, the purpose that heats, yet lack fluorine also is ubiquitous a kind of fault during air-conditioning uses, if continue long-play, not only freezes behind the lack of fluorine of air-conditioners, heating effect is poor, the waste electric energy, and can cause overheat of compressor, and the long-time overheated electrical machine insulation Performance And Reliability that not only can reduce, shorten electrical machinery life, but also can reduce the lubricating ability of lubricating oil, even cause lubricating oil carbonization and acidolysis, also can damage compressor when serious, influence the life-span of air conditioner.Therefore it is extremely important to lack the fluorine detection for air-conditioning, but existing air-conditioning does not lack the detection and the defencive function of fluorine, can only be by artificial detection method, and common detection method has following several:
One, hand is touched: transfer the condensation shutter of back with the hand carphology, if feel is cool or do not have temperature, and compressor then can be judged as lack of fluorine of air-conditioners still in work.
Two, soon: adjust temperature controller at refrigerating state, make the temperature of its setting lower 6 to 8 degrees centigrade, move after 15 minutes, see that the indoor set hydraulic tube should not have the frosting phenomenon, otherwise this machine lacks fluorine than room temperature.
Three, ear is listened: just working when starting shooting if find compressor always, do not having the vibrations of shutdown, compressor is big when the sound of shake is bought than newly, may be because of lacking the abnormal sound that fluorine causes.
Four, thermometric: look for a thermometer, under refrigeration mode temperature-sensitive head is exported near cold wind, see that the table temperature indicates whether than low 6 to 8 degrees centigrade of room temperature, if be lower than this temperature, and compressor then proves lack of fluorine of air-conditioners still in work.
Five, survey: if the operating current that records air-conditioner, also lacks fluorine often less than rated current and the compressor operating load is reduced, electric current decline causes.
Above-described these methods all are to judge air-conditioning by the air-conditioning professional whether to lack fluorine, there is following defective in it: these methods are for domestic consumer, owing to the concrete structure of air-conditioning not being known and being lacked experience, therefore the comparison difficulty operates, and domestic consumer judges that the accuracy rate that lacks fluorine is also lower, damage owing to erroneous judgement is easy to cause air-conditioning long-time running under the state that lacks fluorine, reduced the service life of air-conditioning.In sum, needing to demand urgently a kind of air-conditioning that can solve artificial scarce fluorine detecting operation difficulty and the low problem of judging nicety rate to detect the method that lacks fluorine and protection.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the defective of above prior art, the detection and the guard method that provide artificial scarce fluorine detecting operation difficulty of a kind of energy solution and judging nicety rate to hang down the lack of fluorine of air-conditioners of problem.
Technical scheme of the present invention is, a kind of detection and guard method of lack of fluorine of air-conditioners are provided, and may further comprise the steps:
The compressor of air-conditioning moves under not scarce fluorine state, and the absolute value of setting the difference of its inner coil pipe temperature value and ambient temperature value is at least Δ T 0
Select refrigeration or heating mode;
After compressor start operation a period of time, record inner coil pipe temperature value and ambient temperature value, then with the absolute value delta T of the difference of two above-mentioned temperature values 1With Δ T 0Compare, if Δ T 1More than or equal to Δ T 0, judge that then air-conditioning does not lack fluorine; If Δ T 1Less than Δ T 0, then judge lack of fluorine of air-conditioners, air-conditioning is reported to the police;
Compressor records inner coil pipe temperature value and ambient temperature value after continuing operation a period of time once more, then with the absolute value delta T of the difference of two above-mentioned temperature values 2With Δ T 0Compare, if Δ T 2More than or equal to Δ T 0, judge that then air-conditioning does not lack fluorine, alarm release; If Δ T 2Less than Δ T 0, then judge lack of fluorine of air-conditioners, out of service.
After adopting above method; the present invention compared with prior art; the detection of lack of fluorine of air-conditioners of the present invention and guard method are not lacking the measured operational data of operation under the fluorine state according to the compressor of air-conditioning, and the absolute value of the temperature value of inner coil pipe and the difference of ambient temperature value is at least Δ T 0After a period of time, detect temperature value and the ambient temperature value that obtains inner coil pipe respectively in compressor operating in the air-conditioning use, then the absolute value and the Δ T of the difference by two above-mentioned temperature values by inner coil pipe temperature sensor and indoor environment temperature sensor 0Comparing draws air-conditioning and whether lacks fluorine, if lack of fluorine of air-conditioners then carries out alarm and shuts down to carry out self-protection.Air-conditioning oneself's of the present invention scarce fluorine detects and guard method does not need user intervention; solved the low problem of operating difficulties, judging nicety rate that domestic consumer is detected; this method can judge accurately whether air-conditioning lacks fluorine; and avoided air-conditioning long-time running under the state that lacks fluorine to damage by the method that lacks behind the fluorine shutdown by force, guaranteed the service life of air-conditioning.
Description of drawings
Fig. 1 is the flow chart of the detection and the guard method of lack of fluorine of air-conditioners of the present invention.
Fig. 2 is the detection of lack of fluorine of air-conditioners of the present invention and the schematic diagram of the available temperature sensor of guard method.
Fig. 3 is the detection of lack of fluorine of air-conditioners of the present invention and the schematic diagram of the available warning device of guard method.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
The equipment that the detection of lack of fluorine of air-conditioners of the present invention and guard method are adopted comprises first temperature sensor that detects the inner coil pipe temperature, second temperature sensor, single-chip microcomputer and the warning device of testing environment temperature; first temperature sensor and second temperature sensor all are connected with the I/O mouth of single-chip microcomputer in the air-conditioning; temperature sensor is to form by a thermistor, a conventional, electric-resistance as shown in Figure 2, is undertaken thermometric by the magnitude of voltage in the variation change input single-chip microcomputer of thermistor resistance.Warning device also is connected with the I/O mouth of single-chip microcomputer in the air-conditioning, and as shown in Figure 3, it is to form by a resistance and a buzzer, makes buzzer work by sending a signal of telecommunication.
As everyone knows, the inner coil pipe temperature of air-conditioning and the difference of environment temperature can be reacted whether operate as normal of air-conditioning fully, the temperature of inner coil pipe is the highest refrigeration of air-conditioning or heats temperature, itself and environment environment temperature have bigger difference, but the operation conditions of these two parameter value complete reaction air-conditionings of the temperature of inner coil pipe and environment temperature, just whether air-conditioning lacks fluorine.
The detection and the guard method of lack of fluorine of air-conditioners of the present invention may further comprise the steps:
Compressor according to air-conditioning is not lacking the measured operational data of operation under the fluorine state, and the absolute value of the temperature value of inner coil pipe and the difference of ambient temperature value is at least Δ T 0, Δ T 0Be a reference value whether an air-conditioning lacks fluorine, that is to say under compressor does not lack the state of fluorine and work Δ T 0Be a limiting value, be lower than this value lack of fluorine of air-conditioners, otherwise air-conditioning does not lack fluorine.In fact, according to differences such as the manufacturer of air-conditioning, air-conditioning models, the compressor of air-conditioning moves the absolute value delta T of the temperature value of its inner coil pipe and the difference of ambient temperature value not lacking under the fluorine state 0All be not quite similar.In the present embodiment, the experimental data of the air-conditioning that is adopted shows, Δ T 0It is 3 ℃.
Open the power supply of air-conditioning, select refrigeration or heating mode, the compressor starts operation, and the single-chip microcomputer of air-conditioning inside picks up counting;
Compressor start operation is after 6-10 minute, record the temperature value and the ambient temperature value of inner coil pipe this moment respectively by first temperature sensor and second temperature sensor, single-chip microcomputer is handled above-mentioned two temperature values, draws the absolute value delta T of the difference of the temperature value of inner coil pipe and ambient temperature value 1, and with Δ T 1Compare with 3 ℃, if Δ T 1More than or equal to 3 ℃, judge that then air-conditioning does not lack fluorine, air-conditioning continues operation; If Δ T 1Less than 3 ℃, then judge lack of fluorine of air-conditioners, this moment, air-conditioning can send of short duration warning by the buzzer device on the controller, but compressor is not out of service.Compressor was started shooting 6-10 minute that moves, and was that process is to Δ T 0The air-conditioning that is 3 ℃ carries out the lot of data collection and analyzes drawing afterwards, and air-conditioning does not lack fluorine in this time period if confirm to obtain, and the absolute value of the temperature value of its inner coil pipe and the difference of ambient temperature value is necessarily more than or equal to Δ T 0, just 3 ℃.
When compressor continued operation after 3-6 minute, record the temperature value and the ambient temperature value of inner coil pipe this moment once more respectively by first temperature sensor and second temperature sensor, single-chip microcomputer is handled above-mentioned two temperature values, draws the absolute value delta T of the difference of the temperature value of inner coil pipe and ambient temperature value 2, and with Δ T 2With 3 ℃ of comparisons, if Δ T 2More than or equal to 3 ℃, judge that then air-conditioning does not lack fluorine, the alarm release of warning device, air-conditioning continues operation; If Δ T 2Less than 3 ℃, can determine at this moment that then air-conditioning has lacked fluorine, air-conditioning is out of service, realizes the protection to compressor.This step is that the refrigerating speed that reasons such as its ageing equipment cause is slow at behind the certain time limit of the use of compressor of air conditioner, and in this case, compressor continues 3-6 minute of operation, can determine fully whether air-conditioning lacks fluorine.3-6 minute this time period was that process is to Δ T equally 0The air-conditioning that is 3 ℃ carries out the lot of data collection and analyzes drawing afterwards, and air-conditioning does not lack fluorine in this time period if confirm to obtain, and the absolute value of the temperature value of its inner coil pipe and the difference of ambient temperature value is necessarily more than or equal to Δ T 0, just 3 ℃, and if less than Δ T 0, then can determine lack of fluorine of air-conditioners.
Claims (4)
1, a kind of detection of lack of fluorine of air-conditioners and guard method is characterized in that: may further comprise the steps:
The compressor of air-conditioning moves under not scarce fluorine state, and the absolute value of setting the difference of its inner coil pipe temperature value and ambient temperature value is at least Δ T 0
Select refrigeration or heating mode;
After compressor start operation a period of time, record inner coil pipe temperature value and ambient temperature value, then with the absolute value delta T of the difference of two above-mentioned temperature values 1With Δ T 0Compare, if Δ T 1More than or equal to Δ T 0, judge that then air-conditioning does not lack fluorine; If Δ T 1Less than Δ T 0, then judge lack of fluorine of air-conditioners, air-conditioning is reported to the police;
Compressor records inner coil pipe temperature value and ambient temperature value after continuing operation a period of time once more, and then with the absolute value delta T of the difference of two above-mentioned temperature values 2With Δ T 0Compare, if Δ T 2More than or equal to Δ T 0, judge that then air-conditioning does not lack fluorine, alarm release; If Δ T 2Less than Δ T 0, then judge lack of fluorine of air-conditioners, out of service.
2, the detection method of lack of fluorine of air-conditioners according to claim 1 is characterized in that: described T 0It is 3 ℃.
3, the detection method of lack of fluorine of air-conditioners according to claim 1 is characterized in that: described compressor start operation a period of time is 6-10 minute.
4, the detection method of lack of fluorine of air-conditioners according to claim 1 is characterized in that: it is 3-6 minute that described compressor continues operation a period of time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910097291A CN101526259A (en) | 2009-03-31 | 2009-03-31 | Detection and protection method of lack of fluorine of air-conditioners |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910097291A CN101526259A (en) | 2009-03-31 | 2009-03-31 | Detection and protection method of lack of fluorine of air-conditioners |
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| CN101526259A true CN101526259A (en) | 2009-09-09 |
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| CN200910097291A Pending CN101526259A (en) | 2009-03-31 | 2009-03-31 | Detection and protection method of lack of fluorine of air-conditioners |
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|---|---|---|---|---|
| CN101813357A (en) * | 2010-04-01 | 2010-08-25 | 广东美的电器股份有限公司 | Method for protecting compressor of air conditioning unit |
| CN101929719A (en) * | 2010-08-27 | 2010-12-29 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
| CN103090504A (en) * | 2011-11-04 | 2013-05-08 | 珠海格力电器股份有限公司 | Air conditioner and detection method and device thereof |
| CN103235225A (en) * | 2013-04-25 | 2013-08-07 | 青岛海尔空调电子有限公司 | Method and device for detecting fluorine-deficient operation of variable frequency air conditioner |
| CN103306962A (en) * | 2013-07-05 | 2013-09-18 | 四川长虹空调有限公司 | Protection method and detection circuit for freon shortage of compressor |
| CN103363617A (en) * | 2012-04-10 | 2013-10-23 | 珠海格力电器股份有限公司 | Method and device for detecting lack of fluorine in air conditioner and air conditioner |
| CN103884480A (en) * | 2014-03-14 | 2014-06-25 | 广东美的制冷设备有限公司 | Refrigerant leak detection method, refrigerant leak detection system and air conditioner |
| CN103940052A (en) * | 2013-01-21 | 2014-07-23 | 珠海格力电器股份有限公司 | Air conditioner and fault detection method thereof |
| CN104033994A (en) * | 2014-06-20 | 2014-09-10 | 四川长虹电器股份有限公司 | Air conditioner and method for detecting fluorine content |
| CN104061656A (en) * | 2014-07-04 | 2014-09-24 | 珠海格力电器股份有限公司 | Fluorine-deficiency protection method and device for air conditioner |
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| CN104566771A (en) * | 2013-10-23 | 2015-04-29 | 珠海格力电器股份有限公司 | Refrigerant control method and device of dehumidifier |
| CN104566846A (en) * | 2013-10-24 | 2015-04-29 | 广州南洋理工职业学院 | Fluorine shortage protection method for air conditioner |
| CN105066362A (en) * | 2015-08-24 | 2015-11-18 | Tcl空调器(中山)有限公司 | Method and device for detecting lack of refrigerant in air conditioner |
| CN105241070A (en) * | 2015-11-06 | 2016-01-13 | 珠海格力电器股份有限公司 | Fluorine-lack protection control method and device for air energy water heater and air energy water heater |
| CN105627514A (en) * | 2016-01-07 | 2016-06-01 | 珠海格力电器股份有限公司 | Air conditioner refrigerant fluorine deficiency judgment method and device |
| CN104075415B (en) * | 2014-07-04 | 2016-08-24 | 珠海格力电器股份有限公司 | Fluorine-deficiency protection method and device for air conditioner |
| CN105928135A (en) * | 2016-04-19 | 2016-09-07 | 青岛海尔空调器有限总公司 | Method and device for judging refrigerant amount and refrigeration equipment |
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| CN106556103A (en) * | 2016-10-21 | 2017-04-05 | 珠海格力电器股份有限公司 | Control method and device for fluorine deficiency protection of air conditioner |
| CN107525208A (en) * | 2017-07-10 | 2017-12-29 | 珠海格力电器股份有限公司 | Air conditioner fluorine deficiency detection method and device |
| CN108131776A (en) * | 2017-12-29 | 2018-06-08 | Tcl空调器(中山)有限公司 | Air conditioner fluorine deficiency protection method and air conditioner |
| CN108954667A (en) * | 2017-05-18 | 2018-12-07 | 奥克斯空调股份有限公司 | A kind of scarce fluorine protection control method of air-conditioner with fixed frequency |
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| CN111121223A (en) * | 2019-12-31 | 2020-05-08 | Tcl空调器(中山)有限公司 | Fluorine-lacking protection method of air conditioner, air conditioner and storage medium |
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- 2009-03-31 CN CN200910097291A patent/CN101526259A/en active Pending
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| CN101813357A (en) * | 2010-04-01 | 2010-08-25 | 广东美的电器股份有限公司 | Method for protecting compressor of air conditioning unit |
| CN101929719A (en) * | 2010-08-27 | 2010-12-29 | 宁波奥克斯空调有限公司 | Method for protecting compressor during fluorine lack of inverter air conditioner |
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