CN105928135A - Method and device for judging refrigerant amount and refrigeration equipment - Google Patents
Method and device for judging refrigerant amount and refrigeration equipment Download PDFInfo
- Publication number
- CN105928135A CN105928135A CN201610242709.1A CN201610242709A CN105928135A CN 105928135 A CN105928135 A CN 105928135A CN 201610242709 A CN201610242709 A CN 201610242709A CN 105928135 A CN105928135 A CN 105928135A
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- Prior art keywords
- temperature
- coolant quantity
- setting value
- time
- coolant
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Classifications
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- 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
- F24F11/30—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
- 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
- F24F11/50—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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a method for judging the refrigerant amount. The method comprises the steps that the temperature of a component is detected at first time, and a first temperature is acquired; the temperature of the same component is detected at second time, and a second temperature is acquired; and the sufficiency of the refrigerant amount is determined according to the difference value of the first temperature and the second temperature. Whether refrigerants of an air conditioner are sufficient or not can be checked through a simple temperature detecting manner, and therefore a user is reminded to add the refrigerants in time, and the refrigeration effect is guaranteed.
Description
Technical field
The present invention relates to air conditioner technical field, particularly relate to a kind of judge coolant quantity method,
Device and refrigeration plant.
Background technology
The most sufficient effect influencing whether air-conditioning homoiothermic of coolant quantity in air-conditioning, current domestic air conditioning is to cold
The detection method of matchmaker's amount uses monitoring temperature signal or the mode of current signal, concrete detection mostly
All there is more complicated problem in journey.
Coolant quantity detection mode disclosed in prior art mainly has following several:
(1) off-premises station and the indoor set of air-conditioner is equipped with temperature sensor, utilizes the room detected
Outer temperature, off-premises station pipe arrangement temperature and the situation of indoor set pipe arrangement temperature integrated judgement cold medium shortage situation；
(2) indoor set of air-conditioning is equipped with multiple temperature sensors, can gather indoor environment temperature respectively
Degree and heat exchanger temperature, according to described indoor set ambient temperature, the difference of heat exchanger indoor unit temperature
Value size judges whether judge module cold medium shortage occur.
Above-mentioned coolant quantity measuring method is applicable to variations in temperature convertible frequency air-conditioner frequently mostly, and for
For fixed frequency air conditioner, existing detection method and device are complex, and cost is the highest.
Summary of the invention
It is an object of the invention to, it is provided that a kind of judge the method for coolant quantity, device and refrigeration plant,
Its simple in construction, easy to detect.
It is as follows that the present invention realizes the technical scheme that above-mentioned purpose used:
According to an aspect of the invention, it is provided a kind of method judging coolant quantity, including:
The temperature of one time detection, it is thus achieved that the first temperature；In the temperature of the second same parts of time detecting,
Obtain the second temperature；Difference according to the first temperature and the second temperature determines the abundance of coolant quantity.
Further, the very first time is the time point before compressor operating, and the second time was compressor fortune
Time point after row.
Further, parts include the pipe arrangement of indoor set.
Further, the signal of the first temperature and the second temperature obtains from same temperature sensor.
Further, the method is the judgement of coolant quantity abundance under cooling condition and heating condition,
In cooling condition, described first temperature and the second temperature are relatively by temperature gap and setting value
Compare；And in heating condition, described first temperature and the second temperature are relatively by temperature
The absolute value of degree difference compares with setting value.
Further, in cooling condition, the step that temperature gap compares with setting value includes: if T1-T2
＞ t, then coolant quantity is sufficient, and operation of air conditioner is normal；Otherwise, coolant quantity is not enough, and wherein, T1 is first
Temperature, T2 is the second temperature, and t is setting value.
Further, in heating condition, the step bag that the absolute value of temperature gap compares with setting value
Include: if | T1-T2 | is ＞ t, then coolant quantity is sufficient, and operation of air conditioner is normal；Otherwise, coolant quantity is not enough,
Wherein, T1 is the first temperature, and T2 is the second temperature, and t is setting value..
Further, the assay intervals certain time of the first temperature and the second temperature.
Further, the time interval of the first temperature and the second temperature is detected not less than 3 minutes.
According to a further aspect in the invention, additionally provide a kind of device using the method, including: temperature
Degree sensor, for the first temperature and second temperature of detection；Processor, is used for receiving temperature sensing
The temperature signal of device detection, compares the temperature gap of the first temperature and the second temperature with setting value,
And generate the judged result of coolant quantity abundance；Display, is used for showing judged result.
According to a further aspect in the invention, additionally provide a kind of refrigeration plant, on this refrigeration plant has
The device stated.
The present invention uses technique scheme to be had the beneficial effect that
The present invention is applicable to the detection operation of fixed frequency air conditioner coolant quantity, by single temperature sensor is only
Can detect coolant quantity easily and fast the most not enough, simple in construction, cost is relatively low, and can carry in time
Show user's coolant adding.
Accompanying drawing explanation
Fig. 1 is the flow chart of the inventive method；
Fig. 2 is the flow chart that temperature gap of the present invention compares with setting value；
Fig. 3 is the inventive method flow chart of embodiment under cooling condition；
Fig. 4 is the inventive method flow chart of embodiment under heating condition；
Fig. 5 is the schematic diagram of apparatus of the present invention.
Detailed description of the invention
For the scheme in the present invention is clearly described, preferred embodiment is given below and to combine accompanying drawing detailed
Describe in detail bright.That the following description is substantially merely exemplary and be not intended to limit the disclosure should
With or purposes.It should be appreciated that in whole accompanying drawings, corresponding reference represent identical or
Corresponding parts and feature.
Flow chart as depicted in figs. 1 and 2, the invention provides a kind of indoor set independent judgment coolant
The detection method of amount, key step includes:
The first temperature of parts at temperature measurement location is selected, it is desirable to after air-conditioning is started shooting in very first time detection
And detect before compressor operating, now the first temperature is close to indoor temperature；
The second temperature at the second same parts of time detecting, it is desirable to detect after compressor operating,
Because compressor non-synchronous averaging during air-conditioning starting up, and compressor temperature sensing when startup optimization
Device detection treats that the variations in temperature of temperature-measuring part requires time for, general no less than 3 minutes；
First temperature and the second temperature are compared, judges coolant quantity according to both temperature gaps
Abundance.
At the pipe arrangement that temperature measurement location is indoor apparatus of air conditioner that the present invention selects, pipe arrangement can be cold with blood circulation
Matchmaker, bypasses air through cold water (or hot water) cooled (or heating), to keep room temperature afterwards
Constant, therefore the variations in temperature at pipe arrangement can reflect that air conditioner coolant amount is the most sufficient, the present invention's
Detection method is i.e. to detect the coolant quantity of air-conditioning by gathering the temperature value at pipe arrangement.
Below in conjunction with some optional embodiments, the detection method of the present invention is described in detail.
The detection of air conditioner coolant amount under embodiment (), summer air-conditioning cooling condition, as described in Figure 3:
Under cooling in summer operating mode, the running temperature at pipe arrangement is generally 10 DEG C～20 DEG C；
Step one: air-conditioning start runs, before compressor operating, capture setting temperature at pipe arrangement passes
First temperature of sensor is 30 DEG C；
Step 2: compressor is opened and run, and after 4 minutes, the second temperature of collecting temperature sensor is
16℃；
Step 3: setting value t is 5 DEG C, T1=30 DEG C, T2=16 DEG C, then T1-T2=14 DEG C > 5 DEG C,
Coolant quantity is sufficient, and operation of air conditioner is normal.
The detection of air conditioner coolant amount under embodiment (two), winter air-conditioning heating condition, as shown in Figure 4:
Under winter refrigeration operating mode, the running temperature at pipe arrangement is generally 35 DEG C～50 DEG C；
Step one: air-conditioning start runs, before compressor operating, capture setting temperature at pipe arrangement passes
First temperature of sensor is 10 DEG C；
Step 2: compressor is opened and run, and after 5 minutes, the second temperature of collecting temperature sensor is
20℃；
Step 3: setting value t is 20 DEG C, T1=10 DEG C, T2=20 DEG C, then | T1-T2 |=10 DEG C < 20 DEG C,
Coolant quantity is not enough, and operation of air conditioner is abnormal, requires supplementation with coolant.
Meanwhile, air conditioner user can understand air conditioner coolant amount situation in time for convenience, and the present invention also carries
Supply a kind of detection device using this detection method, as it is shown in figure 5, include: be electrically connected to each other
Temperature sensor, processor and display；Wherein, temperature sensor is arranged at air conditioner piping,
For detecting the first temperature at indoor set pipe arrangement and the second temperature；Processor, in processor is arranged on
On mounted circuit board, for receiving the temperature signal of temperature sensor detection, and by the first temperature and second
The temperature gap of temperature compares with setting value, and generates the judged result of coolant quantity；Display,
Interior machine display panel can be used, for the judged result of the coolant quantity that video-stream processor generates.
Disclosed in this invention be a kind of method using single temperature sensor to carry out coolant quantity judgement and
Device, arranges above-mentioned detection device in the refrigeration plant such as air-conditioning, refrigerator, it is also possible to plays simplification and surveys
Temperature device integrated model, the effect of reduction cost.
In sum, above said content is only embodiments of the invention, is merely to illustrate the present invention's
Principle, is not intended to limit protection scope of the present invention.All within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (11)
1. the method judging coolant quantity, it is characterised in that including:
Temperature at very first time detection part, it is thus achieved that the first temperature；
Temperature at the second same parts of time detecting, it is thus achieved that the second temperature；
Difference according to described first temperature and described second temperature determines the abundance of coolant quantity.
Method the most according to claim 1, it is characterised in that the described very first time is compressor
Time point before operation, described second time is the time point after compressor operating.
Method the most according to claim 1, it is characterised in that described parts include indoor set
Pipe arrangement.
Method the most according to claim 1, it is characterised in that described first temperature and described
The signal of two temperature obtains from same temperature sensor.
Method the most according to claim 1, it is characterised in that described method is used for cooling condition
With the judgement of coolant quantity abundance under heating condition, in cooling condition, described first temperature and second
Temperature is relatively to be compared with setting value by temperature gap；And in heating condition, described
The comparison of the first temperature and the second temperature is that the absolute value by temperature gap compares with setting value.
Method the most according to claim 5, it is characterised in that in cooling condition, described temperature
The step that degree difference compares with setting value includes:
If T1-T2 is ＞ t, then coolant quantity is sufficient, and operation of air conditioner is normal；Otherwise, coolant quantity is not enough, its
In, T1 is the first temperature, and T2 is the second temperature, and t is setting value.
Method the most according to claim 5, it is characterised in that in heating condition, described temperature
The step that the absolute value of degree difference compares with setting value includes:
If | T1-T2 | is ＞ t, then coolant quantity is sufficient, and operation of air conditioner is normal；Otherwise, coolant quantity is not enough,
Wherein, T1 is the first temperature, and T2 is the second temperature, and t is setting value.
The method of indoor set independent judgment coolant quantity the most according to claim 1, it is characterised in that
Described first temperature and the assay intervals certain time of the second temperature.
The method of indoor set independent judgment coolant quantity the most according to claim 8, it is characterised in that
Detect the time interval of described first temperature and the second temperature not less than 3 minutes.
10. one kind uses the device of method as described in any one of claim 1-9, it is characterised in that bag
Include:
Temperature sensor, for the first temperature and second temperature of detection；
Processor, for receiving the temperature signal of described temperature sensor detection, by the first temperature and the
The temperature gap of two temperature compares with setting value, and generates the judged result of coolant quantity abundance；
Display, is used for showing described judged result.
11. 1 kinds of refrigeration plants, it is characterised in that described refrigeration plant has such as claim 10 institute
The device stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242709.1A CN105928135A (en) | 2016-04-19 | 2016-04-19 | Method and device for judging refrigerant amount and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610242709.1A CN105928135A (en) | 2016-04-19 | 2016-04-19 | Method and device for judging refrigerant amount and refrigeration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN105928135A true CN105928135A (en) | 2016-09-07 |
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ID=56838361
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610242709.1A Pending CN105928135A (en) | 2016-04-19 | 2016-04-19 | Method and device for judging refrigerant amount and refrigeration equipment |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339835A (en) * | 2017-07-25 | 2017-11-10 | 珠海格力电器股份有限公司 | Refrigerant quantity monitoring 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 |
| CN108397876A (en) * | 2018-02-27 | 2018-08-14 | 珠海格力电器股份有限公司 | Method and device for detecting air conditioner refrigerant state |
| CN110195910A (en) * | 2019-05-31 | 2019-09-03 | 四川长虹电器股份有限公司 | Refrigerating system coolant stock detection method |
| CN110671779A (en) * | 2019-10-24 | 2020-01-10 | 宁波奥克斯电气股份有限公司 | Refrigerant allowance detection method and device for air conditioner, server and storage medium |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339835A (en) * | 2017-07-25 | 2017-11-10 | 珠海格力电器股份有限公司 | Refrigerant quantity monitoring 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 |
| CN108397876A (en) * | 2018-02-27 | 2018-08-14 | 珠海格力电器股份有限公司 | Method and device for detecting air conditioner refrigerant state |
| CN110195910A (en) * | 2019-05-31 | 2019-09-03 | 四川长虹电器股份有限公司 | Refrigerating system coolant stock detection method |
| CN110671779A (en) * | 2019-10-24 | 2020-01-10 | 宁波奥克斯电气股份有限公司 | Refrigerant allowance detection method and device for air conditioner, server and storage medium |
| CN110671779B (en) * | 2019-10-24 | 2022-01-25 | 宁波奥克斯电气股份有限公司 | Refrigerant allowance detection method and device for air conditioner, server and storage medium |
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Application publication date: 20160907 |
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