CN107339835A - Refrigerant quantity monitoring method and device - Google Patents
Refrigerant quantity monitoring method and device Download PDFInfo
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- CN107339835A CN107339835A CN201710612831.8A CN201710612831A CN107339835A CN 107339835 A CN107339835 A CN 107339835A CN 201710612831 A CN201710612831 A CN 201710612831A CN 107339835 A CN107339835 A CN 107339835A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 216
- 238000000034 method Methods 0.000 title claims abstract description 123
- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 238000012360 testing method Methods 0.000 claims abstract description 205
- 230000008569 process Effects 0.000 claims abstract description 82
- 238000012806 monitoring device Methods 0.000 claims abstract description 20
- 238000004378 air conditioning Methods 0.000 claims description 198
- 239000002826 coolant Substances 0.000 claims description 71
- 238000002474 experimental method Methods 0.000 claims description 55
- 230000008859 change Effects 0.000 claims description 22
- 238000000605 extraction Methods 0.000 claims description 17
- 241000208340 Araliaceae Species 0.000 claims 1
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- 235000008434 ginseng Nutrition 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract 1
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- 239000007788 liquid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 3
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- 241001269238 Data Species 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 201000003152 motion sickness Diseases 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000008020 evaporation Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a refrigerant quantity monitoring method, which is applied to an air conditioner and comprises the following steps: collecting operation parameter values of an air conditioner in an operation process; collecting a pressure value of the air conditioner in the operation process; extracting a test data set matched with the operation parameter values, wherein the test data set comprises a test pressure value set and a test refrigerant residual quantity set; and determining the residual quantity of the refrigerant in the test data set based on the pressure value. Compared with the prior art, the method can accurately determine the residual refrigerant quantity, and workers can add a proper amount of refrigerant according to the residual quantity of the refrigerant without pumping out the refrigerant and then add the refrigerant, so that the using quantity of the refrigerant is saved, and the operating cost of the air conditioner is reduced. The invention also provides a refrigerant monitoring device.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of refrigerant monitoring method and device.
Background technology
Refrigerant within air-conditioning systems, to transferring heat energy, produces refrigerating effect.Refrigerant is in one kind in process of refrigerastion
Between material, it first receives the cold of refrigerant and cooled, and then removes the other cooled materials of cooling again, we claim the intermediate
Matter is refrigerant, can claim refrigerating medium again.Refrigerant has gas coolant, liquid and solid refrigerant, gas coolant mainly to have air etc.；Liquid
Refrigerant has water, salt within air-conditioning systems, by the operating of refrigeration unit, is absorbed heat into the refrigerant evaporation in evaporator, when
Be passed through evaporator inner cold water and carry out heat exchange in evaporator quickly, heat by refrigerant suction and temperature be declined to become it is cold
Freeze water, then chilled water carries out heat exchange by the surface cooler in air-conditioning equipment and processed air again, drops air themperature
It is low.
It can be said that no refrigerant air-conditioning can not just freeze, therefore, it is to ensure that the surplus of refrigerant in air-conditioning, which is monitored,
The key that air-conditioning normally freezes.In the prior art, subcooler liquid pipe high pressure is exported to positioned at outdoor heat exchanger by detecting in real time
The temperature of copper pipe, subcooler liquid pipe high-pressure side liquid export to the temperature of copper pipe between indoor set between the liquid import of side, according between two temperatures
Difference judge whether the groundwater increment of refrigerant in the air-conditioning system using subcooler suitable.However, this mode can only be thick
That omits judges whether the amount of refrigerant in air-conditioning is enough, can not accurately judge the surplus of refrigerant in air-conditioning, staff is more
When changing refrigerant, because not knowing the Specific amounts of remaining refrigerant, therefore, the cold of rated capacity is added after can only refrigerant be all evacuated
Matchmaker, adds the usage amount of refrigerant, and then adds the operating cost of air-conditioning.
Therefore, how effectively to judge that the surplus of refrigerant in air-conditioning becomes those skilled in the art and is badly in need of asking for solution
Topic.
The content of the invention
In view of this, the invention provides a kind of refrigerant quantity monitoring method, compared to user can only being allowed to know in the prior art
Whether road refrigerant is compared enough, and remaining coolant quantity can be determined more accurately out in this method, and staff can be according to the surplus of refrigerant
Surplus adds appropriate refrigerant, and without being added again after evacuating all refrigerants, the usage amount of refrigerant has been saved, has reduced sky
The operating cost of tune.
The invention provides a kind of refrigerant quantity monitoring method, applied to air-conditioning, methods described includes：
Gather the operational parameter value of the air-conditioning in the process of running；
Gather the pressure value of the air-conditioning in the process of running；
The test data set that extraction matches with the operational parameter value, wherein, included in the test data set
Test pressure value set and experiment refrigerant residue duration set；
Refrigerant surplus is determined in the test data set based on the pressure value.
Preferably, also include before the operational parameter value of the air-conditioning in the process of running is gathered：
It is steady to judge whether pressure change rate of the air-conditioning in the process of running in preset time period is less than or equal to pressure
State value；
Accordingly, when the air-conditioning, the pressure change rate in preset time period is less than or equal to the pressure in the process of running
During power steady-state value, the operational parameter value of the air-conditioning in the process of running is gathered.
Preferably, the operational parameter value of the collection air-conditioning in the process of running includes：
Gather the outdoor environment temperature value of the air-conditioning in the process of running；
Gather the compressor rotary speed of the air-conditioning in the process of running.
Preferably, also include in the test data set：Test outdoor environment temperature value and experiment compressor rotary speed；Institute
Stating the test data set that extraction matches with the operational parameter value includes：
Extraction with the outdoor environment temperature value identical experiment outdoor environment temperature value and with the compressor rotary speed phase
Test data set corresponding to same experiment compressor rotary speed.
Preferably, it is described to show that refrigerant surplus includes in the test data set based on the pressure value：
Judge whether include the pressure value in the test pressure value set in the test data set；
, will be with the pressure value when including the pressure value in the test pressure value set in the test data set
Experiment refrigerant surplus is defined as refrigerant surplus corresponding to identical test pressure value；
When not including the pressure value in the test pressure value set in the test data set, determine with it is described
Test pressure value scope corresponding to pressure value, experiment refrigerant surplus scope corresponding with the test pressure value scope is determined
For refrigerant surplus.
Preferably, methods described also includes：
Show the refrigerant surplus.
Preferably, methods described also includes：
Judge whether the refrigerant surplus is less than default early warning value；
When the refrigerant surplus is less than the default early warning value, warning message is generated.
A kind of coolant quantity monitoring device, applied to air-conditioning, the coolant quantity monitoring device includes：
Harvester, for gathering the operational parameter value of the air-conditioning in the process of running；
Pressure sensor, for gathering the pressure value of the air-conditioning in the process of running；
Processor, for extracting the test data set to match with the operational parameter value, wherein, the test data
Comprising test pressure value set and experiment refrigerant residue duration set in set, based on the pressure value in the test data set
In determine refrigerant surplus.
Preferably, before the harvester gathers the operational parameter value of the air-conditioning in the process of running, the place
Reason device is additionally operable to：
It is steady to judge whether pressure change rate of the air-conditioning in the process of running in preset time period is less than or equal to pressure
State value；
Accordingly, when the air-conditioning, the pressure change rate in preset time period is less than or equal to the pressure in the process of running
During power steady-state value, the harvester gathers the operational parameter value of the air-conditioning in the process of running.
Preferably, the harvester includes：
Temperature sensor, for gathering the outdoor environment temperature value of the air-conditioning in the process of running；
Frequency meter, for gathering the compressor rotary speed of the air-conditioning in the process of running.
Preferably, also include in the test data set：Test outdoor environment temperature value and experiment compressor rotary speed；Institute
The process for the test data set that processor extraction matches with the operational parameter value is stated, is specifically included：
Extraction with the outdoor environment temperature value identical experiment outdoor environment temperature value and with the compressor rotary speed phase
Test data set corresponding to same experiment compressor rotary speed.
Preferably, the processor draws the mistake of refrigerant surplus based on the pressure value in the test data set
Journey, specifically include：
Judge whether include the pressure value in the test pressure value set in the test data set；
, will be with the pressure value when including the pressure value in the test pressure value set in the test data set
Experiment refrigerant surplus is defined as refrigerant surplus corresponding to identical test pressure value；
When not including the pressure value in the test pressure value set in the test data set, determine with it is described
Test pressure value scope corresponding to pressure value, experiment refrigerant surplus scope corresponding with the test pressure value scope is determined
For refrigerant surplus.
Preferably, described coolant quantity monitoring device also includes：
Display, for showing the refrigerant surplus.
Preferably, the processor is additionally operable to：
Judge whether the refrigerant surplus is less than default early warning value；
When the refrigerant surplus is less than the default early warning value, warning message is generated.
It can be seen from the above technical proposal that the invention provides a kind of refrigerant quantity monitoring method, when needing to air-conditioning
When refrigerant surplus is detected, the operational parameter value and pressure value of air-conditioning, Ran Houti are gathered during operation of air conditioner
Take out the test data set to match with operational parameter value, wherein, in test data set comprising test pressure value set and
Refrigerant residue duration set is tested, determines the refrigerant surplus of air-conditioning in test data set according to the pressure value collected,
It can only let the user know that whether refrigerant is enough compared to prior art, remaining coolant quantity can be determined more accurately out in this method,
Staff can add appropriate refrigerant according to the surplus of refrigerant, and without being added again after evacuating all refrigerants, save
The usage amount of refrigerant, reduce the operating cost of air-conditioning.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of refrigerant quantity monitoring method embodiment 1 disclosed by the invention；
Fig. 2 is a kind of method flow diagram of refrigerant quantity monitoring method embodiment 2 disclosed by the invention；
Fig. 3 is a kind of method flow diagram of refrigerant quantity monitoring method embodiment 3 disclosed by the invention；
Fig. 4 is a kind of method flow diagram of refrigerant quantity monitoring method embodiment 4 disclosed by the invention；
Fig. 5 is a kind of structural representation of coolant quantity monitoring device embodiment 1 disclosed by the invention；
Fig. 6 is a kind of structural representation of coolant quantity monitoring device embodiment 2 disclosed by the invention；
Fig. 7 is a kind of structural representation of coolant quantity monitoring device embodiment 3 disclosed by the invention；
Fig. 8 is a kind of structural representation of coolant quantity monitoring device embodiment 4 disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in figure 1, be a kind of flow chart of the embodiment 1 of refrigerant quantity monitoring method disclosed by the invention, including：
S101, the operational parameter value of collection air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
S102, the pressure value of collection air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
The test data set that S103, extraction and operational parameter value match, wherein, experiment is included in test data set
Pressure value set and experiment refrigerant residue duration set；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
S104, refrigerant surplus determined in test data set based on pressure value.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
In summary, in the above-described embodiments, when needing the refrigerant surplus to air-conditioning to detect, in operation of air conditioner
During gather air-conditioning operational parameter value and pressure value, then extract the test data to match with operational parameter value
Set, wherein, comprising test pressure value set and experiment refrigerant residue duration set in test data set, according to the pressure collected
Force value determines the refrigerant surplus of air-conditioning in test data set, can only let the user know that refrigerant is compared to prior art
No remaining coolant quantity can be determined more accurately out in this method enough, and staff can add appropriate according to the surplus of refrigerant
Refrigerant, and without being added again after evacuating all refrigerants, saved the usage amount of refrigerant, reduce the operation of air-conditioning into
This.
As shown in Fig. 2 be a kind of flow chart of the embodiment 2 of refrigerant quantity monitoring method disclosed by the invention, including：
S201, judge whether pressure change rate of the air-conditioning in the process of running in preset time period be steady less than or equal to pressure
State value；
In order that the monitoring to air conditioner coolant amount is more accurate, in the preset time period of air-conditioning start operation, to air-conditioning
Pressure change judged, judge whether pressure change rate is less than or equal to pressure steady-state value, that is, judge whether air-conditioning reaches fortune
Row stable state.
S202, when air-conditioning, the pressure change rate in preset time period is less than or equal to pressure steady-state value in the process of running
When, the operational parameter value of collection air-conditioning in the process of running；
When the pressure change rate of the air-conditioning in preset time period is less than or equal to pressure steady-state value, i.e., it is steady to reach operation for air-conditioning
When determining state, the operational parameter value of air-conditioning is further gathered.Wherein, the operational parameter value of collection is for determining that air-conditioning residue is cold
The numerical value of matchmaker's amount, e.g., rotating speed of outdoor environment temperature value, compressor during operation of air conditioner etc..
S203, the pressure value of collection air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
The test data set that S204, extraction and operational parameter value match, wherein, experiment is included in test data set
Pressure value set and experiment refrigerant residue duration set；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
S205, refrigerant surplus determined in test data set based on pressure value.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
In summary, the present embodiment determines whether air-conditioning in the process of running when default on the basis of embodiment 1
Between pressure change rate in section whether be less than or equal to pressure steady-state value, when pressure change rate is less than or equal to pressure steady-state value, i.e.,
Operation of air conditioner is in stable state, then gathers the operational parameter value and pressure value of air-conditioning, then extracts and operational parameter value
The test data set to match, wherein, test pressure value set and experiment refrigerant residue quantity set are included in test data set
Close, determine the refrigerant surplus of air-conditioning in test data set according to the pressure value collected, compared to prior art only
It can let the user know that whether refrigerant is enough, remaining coolant quantity can be determined more accurately out in this method, and staff can be according to cold
The surplus of matchmaker adds appropriate refrigerant, and without being added again after evacuating all refrigerants, the usage amount of refrigerant has been saved, has been dropped
The low operating cost of air-conditioning.
Specifically, in the above-described embodiment, the operational parameter value of collection air-conditioning in the process of running includes：Gather air-conditioning
Outdoor environment temperature value in the process of running, when gathering the outdoor environment temperature value of air-conditioning in the process of running, Ke Yitong
Excess temperature sensor detects to the environment temperature residing for outdoor machine of air-conditioner.In the operational factor of collection air-conditioning in the process of running
Also include during value：Compressor rotary speed of the air-conditioning during carsickness is gathered, is turned in the compressor of collection air-conditioning in the process of running
When fast, the rotating speed of compressor can be detected by frequency meter.
Specifically, in the above-described embodiments, when the operational parameter value of collection air-conditioning in the process of running is outdoor environment temperature
When angle value and compressor rotary speed, extraction and outdoor environment temperature value identical experiment outdoor environment temperature value and and compressor rotary speed
Test data set corresponding to identical experiment compressor rotary speed.For example, when monitoring air conditioner coolant amount, the outdoor that collects
Environment temperature is T1, compressor rotary speed N1, is T1 according to the outdoor environment temperature collected, and compressor rotary speed extracts for N1
The test data set that outdoor environment temperature is T1 and compressor rotary speed is N1.Therein it is proposed that test data set in include
Test pressure value set and experiment refrigerant residue duration set, i.e., outdoor environment temperature be T1, compressor rotary speed be N1 when, have cold
When pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when matchmaker's surplus is 100% are 90% are 80%
The test datas such as pressure value P 3.
Specifically, in the above-described embodiments, it is first when drawing refrigerant surplus in test data set based on pressure value
First it may determine that whether comprising the pressure value collected in the test pressure value set in test data set, for example, when collection
There is test pressure value P1 when the pressure value arrived is P1, and in test pressure value set, then will examination corresponding with test pressure value P1
Test refrigerant surplus 100% and be defined as the current refrigerant surplus of air-conditioning.When by judging the experiment pressure in test data set
When in force value set not comprising the pressure value collected, for example, a certain pressure when the pressure value collected between P1~P2
During value, it is true corresponding with test pressure value P1~test pressure value P2 scopes will to test refrigerant surplus scope 100%~90%
It is set to refrigerant surplus, that is, determines the current refrigerant surplus of air-conditioning between 100%~90%.
As shown in figure 3, be a kind of flow chart of the embodiment 3 of refrigerant quantity monitoring method disclosed by the invention, including：
S301, the operational parameter value of collection air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
S302, the pressure value of collection air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
The test data set that S303, extraction and operational parameter value match, wherein, experiment is included in test data set
Pressure value set and experiment refrigerant residue duration set；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
S304, refrigerant surplus determined in test data set based on pressure value；
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
S305, display refrigerant surplus.
After air-conditioning current refrigerant surplus is determined, the refrigerant surplus determined is shown, by cold
Matchmaker's surplus is shown, is easy to user or attendant directly to know the current refrigerant surplus of air-conditioning.
In summary, the present embodiment is further carried out on the basis of embodiment 1 to the air conditioner coolant surplus determined
It has been shown that, is easy to user or attendant directly to know the current refrigerant surplus of air-conditioning.
As shown in figure 4, be a kind of flow chart of the embodiment 4 of refrigerant quantity monitoring method disclosed by the invention, including：
S401, the operational parameter value of collection air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
S402, the pressure value of collection air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
The test data set that S403, extraction and operational parameter value match, wherein, experiment is included in test data set
Pressure value set and experiment refrigerant residue duration set；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
S404, refrigerant surplus determined in test data set based on pressure value；
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
S405, judge whether refrigerant surplus is less than default early warning value；
After air-conditioning current refrigerant surplus is determined, it is default to determine whether current refrigerant surplus is less than
Early warning value, that is, judge whether the current refrigerant surplus of air-conditioning has reached alert status.
S406, when refrigerant surplus is less than default early warning value, generate warning message.
When judging that current air conditioner coolant surplus is less than default early warning value, warning message is generated, passes through the report of generation
Alert information alert user or attendant add refrigerant.
In summary, the present embodiment refrigerant surplus further current to air-conditioning on the basis of embodiment 1 is sentenced
It is disconnected, when refrigerant surplus is less than default early warning value, warning message is generated, passes through the alarm message reminding user of generation or maintenance
Personnel add refrigerant.
As shown in figure 5, be a kind of structural representation of the embodiment 1 of coolant quantity monitoring device disclosed by the invention, including：
Harvester 501, for gathering the operational parameter value of air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
Pressure sensor 502, for gathering the pressure value of air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
Processor 503, for extracting the test data set to match with operational parameter value, wherein, test data set
In comprising test pressure value set and experiment refrigerant residue duration set, refrigerant is determined in test data set based on pressure value
Surplus.
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
In summary, in the above-described embodiments, when needing the refrigerant surplus to air-conditioning to detect, in operation of air conditioner
During gather air-conditioning operational parameter value and pressure value, then extract the test data to match with operational parameter value
Set, wherein, comprising test pressure value set and experiment refrigerant residue duration set in test data set, according to the pressure collected
Force value determines the refrigerant surplus of air-conditioning in test data set, can only let the user know that refrigerant is compared to prior art
No remaining coolant quantity can be determined more accurately out in this method enough, and staff can add appropriate according to the surplus of refrigerant
Refrigerant, and without being added again after evacuating all refrigerants, saved the usage amount of refrigerant, reduce the operation of air-conditioning into
This.
As shown in fig. 6, be a kind of structural representation of the embodiment 2 of coolant quantity monitoring device disclosed by the invention, including：
Processor 601, for judging whether pressure change rate of the air-conditioning in the process of running in preset time period is less than
Equal to pressure steady-state value；
In order that the monitoring to air conditioner coolant amount is more accurate, in the preset time period of air-conditioning start operation, to air-conditioning
Pressure change judged, judge whether pressure change rate is less than or equal to pressure steady-state value, that is, judge whether air-conditioning reaches fortune
Row stable state.
Harvester 602, it is less than or equal to for the pressure change rate when air-conditioning in the process of running in preset time period
During pressure steady-state value, the operational parameter value of collection air-conditioning in the process of running；
When the pressure change rate of the air-conditioning in preset time period is less than or equal to pressure steady-state value, i.e., it is steady to reach operation for air-conditioning
When determining state, the operational parameter value of air-conditioning is further gathered.Wherein, the operational parameter value of collection is for determining that air-conditioning residue is cold
The numerical value of matchmaker's amount, e.g., rotating speed of outdoor environment temperature value, compressor during operation of air conditioner etc..
Pressure sensor 603, for gathering the pressure value of air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
Processor 601, the test data set that extraction matches with operational parameter value is additionally operable to, wherein, test data set
Comprising test pressure value set and experiment refrigerant residue duration set in conjunction, determined based on pressure value in test data set cold
Matchmaker's surplus.
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
In summary, the present embodiment determines whether air-conditioning in the process of running when default on the basis of embodiment 1
Between pressure change rate in section whether be less than or equal to pressure steady-state value, when pressure change rate is less than or equal to pressure steady-state value, i.e.,
Operation of air conditioner is in stable state, then gathers the operational parameter value and pressure value of air-conditioning, then extracts and operational parameter value
The test data set to match, wherein, test pressure value set and experiment refrigerant residue quantity set are included in test data set
Close, determine the refrigerant surplus of air-conditioning in test data set according to the pressure value collected, compared to prior art only
It can let the user know that whether refrigerant is enough, remaining coolant quantity can be determined more accurately out in this method, and staff can be according to cold
The surplus of matchmaker adds appropriate refrigerant, and without being added again after evacuating all refrigerants, the usage amount of refrigerant has been saved, has been dropped
The low operating cost of air-conditioning.
Specifically, in the above-described embodiment, the operational parameter value of harvester collection air-conditioning in the process of running includes：
The outdoor environment temperature value of air-conditioning in the process of running is gathered, in the outdoor environment temperature value of collection air-conditioning in the process of running
When, the environment temperature residing for outdoor machine of air-conditioner can be detected by temperature sensor.In collection air-conditioning in the process of running
Operational parameter value when also include：Compressor rotary speed of the air-conditioning during carsickness is gathered, in collection air-conditioning in the process of running
Compressor rotary speed when, the rotating speed of compressor can be detected by frequency meter.
Specifically, in the above-described embodiments, when the operational parameter value of collection air-conditioning in the process of running is outdoor environment temperature
When angle value and compressor rotary speed, extraction and outdoor environment temperature value identical experiment outdoor environment temperature value and and compressor rotary speed
Test data set corresponding to identical experiment compressor rotary speed.For example, when monitoring air conditioner coolant amount, the outdoor that collects
Environment temperature is T1, compressor rotary speed N1, is T1 according to the outdoor environment temperature collected, and compressor rotary speed extracts for N1
The test data set that outdoor environment temperature is T1 and compressor rotary speed is N1.Therein it is proposed that test data set in include
Test pressure value set and experiment refrigerant residue duration set, i.e., outdoor environment temperature be T1, compressor rotary speed be N1 when, have cold
When pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when matchmaker's surplus is 100% are 90% are 80%
The test datas such as pressure value P 3.
Specifically, in the above-described embodiments, it is first when drawing refrigerant surplus in test data set based on pressure value
First it may determine that whether comprising the pressure value collected in the test pressure value set in test data set, for example, when collection
There is test pressure value P1 when the pressure value arrived is P1, and in test pressure value set, then will examination corresponding with test pressure value P1
Test refrigerant surplus 100% and be defined as the current refrigerant surplus of air-conditioning.When by judging the experiment pressure in test data set
When in force value set not comprising the pressure value collected, for example, a certain pressure when the pressure value collected between P1~P2
During value, it is true corresponding with test pressure value P1~test pressure value P2 scopes will to test refrigerant surplus scope 100%~90%
It is set to refrigerant surplus, that is, determines the current refrigerant surplus of air-conditioning between 100%~90%.
As shown in fig. 7, be a kind of structural representation of the embodiment 3 of coolant quantity monitoring device disclosed by the invention, including：
Harvester 701, for gathering the operational parameter value of air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
Pressure sensor 702, for gathering the pressure value of air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
Processor 703, for extracting the test data set to match with operational parameter value, wherein, test data set
In comprising test pressure value set and experiment refrigerant residue duration set, refrigerant is determined in test data set based on pressure value
Surplus；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
Display 704, for showing refrigerant surplus.
After air-conditioning current refrigerant surplus is determined, the refrigerant surplus determined is shown, by cold
Matchmaker's surplus is shown, is easy to user or attendant directly to know the current refrigerant surplus of air-conditioning.
In summary, the present embodiment further air conditioner coolant surplus to determining on the basis of device embodiment 1
It has been shown that, be easy to user or attendant directly to know the current refrigerant surplus of air-conditioning.
As shown in figure 8, be a kind of structural representation of the embodiment 4 of coolant quantity monitoring device disclosed by the invention, including：
Harvester 801, for gathering the operational parameter value of air-conditioning in the process of running；
When needing the remaining coolant quantity to air-conditioning to be monitored, during air-conditioning start operation, air-conditioning is gathered
Operational parameter value.Wherein, the operational parameter value of collection is the numerical value for determining air-conditioning residue coolant quantity, e.g., during operation of air conditioner
Outdoor environment temperature value, the rotating speed etc. of compressor.
Pressure sensor 802, for gathering the pressure value of air-conditioning in the process of running；
Detected during operation of air conditioner, while to the pressure of operation of air conditioner, get air-conditioning in running
In pressure value.
Processor 803, for extracting the test data set to match with operational parameter value, wherein, test data set
In comprising test pressure value set and experiment refrigerant residue duration set, refrigerant is determined in test data set based on pressure value
Surplus；
After air-conditioning operational parameter value in the process of running and pressure value is collected, according to the operational factor collected
Value, extract being combined with the test data that operational parameter value matches of prestoring.It should be noted that described experiment number
It is combined into according to collection and the test data of coolant quantity Self -adaptive is carried out to the air-conditioning of certain model in advance.For example, in test data set
Pressure value P 2, refrigerant surplus when pressure value P 1, refrigerant surplus when comprising refrigerant surplus being 100% are 90% are
Pressure value P 3 when 80% etc..It is further to note that the number that air-conditioning carries out coolant quantity test is more, obtained coolant quantity
Monitoring result will be more accurate.
After the test data set to match with operational parameter value is extracted, during the operation of air conditioner collected
Pressure value, the refrigerant surplus of now air-conditioning is determined in test data set.
Processor 803, it is additionally operable to judge whether refrigerant surplus is less than default early warning value, is preset when refrigerant surplus is less than
During early warning value, warning message is generated.
After air-conditioning current refrigerant surplus is determined, it is default to determine whether current refrigerant surplus is less than
Early warning value, that is, judge whether the current refrigerant surplus of air-conditioning has reached alert status.
When judging that current air conditioner coolant surplus is less than default early warning value, warning message is generated, passes through the report of generation
Alert information alert user or attendant add refrigerant.
In summary, the present embodiment refrigerant surplus further current to air-conditioning on the basis of embodiment 1 is sentenced
It is disconnected, when refrigerant surplus is less than default early warning value, warning message is generated, passes through the alarm message reminding user of generation or maintenance
Personnel add refrigerant.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (14)
1. a kind of refrigerant quantity monitoring method, it is characterised in that applied to air-conditioning, methods described includes：
Gather the operational parameter value of the air-conditioning in the process of running；
Gather the pressure value of the air-conditioning in the process of running；
The test data set that extraction matches with the operational parameter value, wherein, experiment is included in the test data set
Pressure value set and experiment refrigerant residue duration set；
Refrigerant surplus is determined in the test data set based on the pressure value.
2. according to the method for claim 1, it is characterised in that gathering the operational factor of the air-conditioning in the process of running
Also include before value：
Judge whether pressure change rate of the air-conditioning in the process of running in preset time period is less than or equal to pressure steady-state value；
Accordingly, when the air-conditioning, the pressure change rate in preset time period is steady less than or equal to the pressure in the process of running
During state value, the operational parameter value of the air-conditioning in the process of running is gathered.
3. according to the method for claim 1, it is characterised in that the operation ginseng of the collection air-conditioning in the process of running
Numerical value includes：
Gather the outdoor environment temperature value of the air-conditioning in the process of running；
Gather the compressor rotary speed of the air-conditioning in the process of running.
4. according to the method for claim 3, it is characterised in that also include in the test data set：Laboratory's outer shroud
Border temperature value and experiment compressor rotary speed；The test data set that the extraction matches with the operational parameter value includes：
Extraction with the outdoor environment temperature value identical experiment outdoor environment temperature value and with the compressor rotary speed identical
Test test data set corresponding to compressor rotary speed.
5. according to the method for claim 1, it is characterised in that described to be based on the pressure value in the test data set
In show that refrigerant surplus includes：
Judge whether include the pressure value in the test pressure value set in the test data set；
, will be identical with the pressure value when including the pressure value in the test pressure value set in the test data set
Test pressure value corresponding to experiment refrigerant surplus be defined as refrigerant surplus；
When not including the pressure value in the test pressure value set in the test data set, determine and the pressure
Test pressure value scope corresponding to value, will it is corresponding with the test pressure value scope experiment refrigerant surplus scope be defined as it is cold
Matchmaker's surplus.
6. according to the method for claim 1, it is characterised in that also include：
Show the refrigerant surplus.
7. according to the method for claim 1, it is characterised in that also include：
Judge whether the refrigerant surplus is less than default early warning value；
When the refrigerant surplus is less than the default early warning value, warning message is generated.
8. a kind of coolant quantity monitoring device, it is characterised in that applied to air-conditioning, the coolant quantity monitoring device includes：
Harvester, for gathering the operational parameter value of the air-conditioning in the process of running；
Pressure sensor, for gathering the pressure value of the air-conditioning in the process of running；
Processor, for extracting the test data set to match with the operational parameter value, wherein, the test data set
In comprising test pressure value set and experiment refrigerant residue duration set, based on the pressure value in the test data set really
Make refrigerant surplus.
9. coolant quantity monitoring device according to claim 8, it is characterised in that gather the air-conditioning in the harvester
Before operational parameter value in the process of running, the processor is additionally operable to：
Judge whether pressure change rate of the air-conditioning in the process of running in preset time period is less than or equal to pressure steady-state value；
Accordingly, when the air-conditioning, the pressure change rate in preset time period is steady less than or equal to the pressure in the process of running
During state value, the harvester gathers the operational parameter value of the air-conditioning in the process of running.
10. coolant quantity monitoring device according to claim 8, it is characterised in that the harvester includes：
Temperature sensor, for gathering the outdoor environment temperature value of the air-conditioning in the process of running；
Frequency meter, for gathering the compressor rotary speed of the air-conditioning in the process of running.
11. coolant quantity monitoring device according to claim 10, it is characterised in that also wrapped in the test data set
Include：Test outdoor environment temperature value and experiment compressor rotary speed；What the processor extraction matched with the operational parameter value
The process of test data set, is specifically included：
Extraction with the outdoor environment temperature value identical experiment outdoor environment temperature value and with the compressor rotary speed identical
Test test data set corresponding to compressor rotary speed.
12. coolant quantity monitoring device according to claim 8, it is characterised in that the processor is based on the pressure value
The process of refrigerant surplus is drawn in the test data set, is specifically included：
Judge whether include the pressure value in the test pressure value set in the test data set；
, will be identical with the pressure value when including the pressure value in the test pressure value set in the test data set
Test pressure value corresponding to experiment refrigerant surplus be defined as refrigerant surplus；
When not including the pressure value in the test pressure value set in the test data set, determine and the pressure
Test pressure value scope corresponding to value, will it is corresponding with the test pressure value scope experiment refrigerant surplus scope be defined as it is cold
Matchmaker's surplus.
13. coolant quantity monitoring device according to claim 8, it is characterised in that also include：
Display, for showing the refrigerant surplus.
14. coolant quantity monitoring device according to claim 8, it is characterised in that the processor is additionally operable to：
Judge whether the refrigerant surplus is less than default early warning value；
When the refrigerant surplus is less than the default early warning value, warning message is generated.
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| CN201710612831.8A CN107339835A (en) | 2017-07-25 | 2017-07-25 | Refrigerant quantity monitoring method and device |
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Application publication date: 20171110 |