CN104457075B - The detection method of air conditioning unit cold-producing medium surplus and system - Google Patents
The detection method of air conditioning unit cold-producing medium surplus and system Download PDFInfo
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- CN104457075B CN104457075B CN201410691094.1A CN201410691094A CN104457075B CN 104457075 B CN104457075 B CN 104457075B CN 201410691094 A CN201410691094 A CN 201410691094A CN 104457075 B CN104457075 B CN 104457075B
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
Abstract
The invention provides detection method and the system of a kind of air conditioning unit cold-producing medium surplus, including: obtain suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；According to described suction temperature and pressure of inspiration(Pi), calculate the actual mass flow of described air conditioning unit middle cold-producing medium；According to operational mode, indoor temperature and outdoor temperature, obtain the standard mass flow of described air conditioning unit cold-producing medium；According to described actual mass flow and standard mass flow, calculate the surplus of described air conditioning unit cold-producing medium, thus solve the problem that can not accurately detect air conditioning unit cold-producing medium surplus in prior art, and then solve the problem that the air conditioning unit reliability caused owing to can not effectively prevent cold-producing medium to leak is poor.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, it relates to a kind of air conditioning unit cold-producing medium residue
The detection method of amount and system.
Background technology
Cold-producing medium is air conditioning unit blood, occurs that cold-producing medium leaks if air conditioning unit, then, air-conditioning
The performance of unit will decline.Further, the leakage of cold-producing medium not only can affect air conditioning unit performance,
And when serious, also can damage air conditioning unit compressor.
But, owing to the leakage of cold-producing medium is the most hidden, leakage process is the slowest, therefore,
There is presently no a kind of good way and accurately detect the surplus of cold-producing medium in air conditioning system, thus not
The problem such as can effectively prevent the air conditioning unit reliability that causes because cold-producing medium leakage poor.
Summary of the invention
In view of this, the invention provides detection method and the system of a kind of air conditioning unit cold-producing medium surplus,
The problem that must not accurately detect air conditioning unit cold-producing medium surplus with solution, and then solve due to can not be effective
Prevention cold-producing medium leakage and the poor problem of the air conditioning unit reliability that causes.
For achieving the above object, the present invention provides following technical scheme:
A kind of detection method of air conditioning unit cold-producing medium surplus, including:
Obtain suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；
According to described suction temperature and pressure of inspiration(Pi), calculate the actual matter of described air conditioning unit middle cold-producing medium
Amount flow；
According to operational mode, indoor temperature and outdoor temperature, obtain the mark of described air conditioning unit cold-producing medium
Quasi-mass flow；
According to described actual mass flow and standard mass flow, calculate described air conditioning unit cold-producing medium
Surplus.
Preferably, after calculating the surplus of described air conditioning unit cold-producing medium, also include:
By the surplus data feedback of described cold-producing medium to described air conditioning unit remote controller, in order to Yong Huhuo
Maintainer checks described air conditioning unit cold-producing medium surplus.
Preferably, described according to described suction temperature and pressure of inspiration(Pi), calculate described air conditioning unit middle system
The process of the actual mass flow of cryogen includes:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi)；
The actual mass of described air conditioning unit middle cold-producing medium is calculated according to described inspiratory volume and volume flow
Flow.
Preferably, described according to operational mode, indoor temperature and outdoor temperature, obtain described air conditioning unit
The process of standard mass flow of cold-producing medium include:
Judge described air conditioning unit operational mode；
If being in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium；
If being in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium.
Preferably, according to described actual mass flow and standard mass flow, calculate described air conditioning unit
The process of the surplus of cold-producing medium includes:
Calculate the difference of described actual mass flow and described standard mass flow；
Judge that whether described difference is less than zero；
If it is not, then the surplus of described air conditioning unit middle cold-producing medium is absolutely；
If it is, according to the ratio of described actual mass flow Yu described standard mass flow, calculate
The percentage ratio of described cold-producing medium surplus.
A kind of detecting system of air conditioning unit cold-producing medium surplus, including:
First acquisition module, for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；
First computing module, described air conditioning unit for calculating according to described suction temperature and pressure of inspiration(Pi)
The actual mass flow of middle cold-producing medium；
Second acquisition module, for according to operational mode, indoor temperature and outdoor temperature, obtains described sky
Adjust the standard mass flow of the cold-producing medium of unit；
Second computing module, for according to described actual mass flow and standard mass flow, calculates institute
State the surplus of air conditioning unit cold-producing medium.
Preferably, also include:
Feedback module, for by the surplus data feedback of described cold-producing medium to described air conditioning unit remote control
Device, in order to user or maintainer check described air conditioning unit cold-producing medium surplus.
Preferably, described first acquisition module includes being arranged on the temperature-sensitive bag at described air conditioning unit compressor
And pressure transducer, described temperature-sensitive bag is used for obtaining described suction temperature, and described pressure transducer is used for obtaining
Take described pressure of inspiration(Pi).
Preferably, described first computing module includes:
Acquiring unit, for obtaining the aspiration ratio of described compressor according to described suction temperature and pressure of inspiration(Pi)
Hold；
First computing unit, described air conditioning unit for calculating according to described inspiratory volume and volume flow
The actual mass flow of middle cold-producing medium.
Preferably, described second acquisition module includes:
First judging unit, for judging described air conditioning unit operational mode, if being in refrigeration mode,
Then sending the first control instruction to the first performance element, if being in heating mode, then sending the second control
Instruction is to the second performance element；
Described first performance element is after receiving described first control instruction, according to default refrigeration matrix
Table, indoor temperature and outdoor temperature, obtain the standard mass flow of described air conditioning unit cold-producing medium；
Described second performance element, after receiving described second control instruction, heats matrix according to default
Table, indoor temperature and outdoor temperature, obtain the standard mass flow of described air conditioning unit cold-producing medium.
Preferably, described second computing module includes:
Second computing unit, for calculating the difference of described actual mass flow and described standard mass flow；
Second judging unit, is used for judging whether described difference is less than zero, if it is not, then described air conditioner
In group, the surplus of cold-producing medium is absolutely, if it is, according to described actual mass flow with described
The ratio of standard mass flow, calculates the percentage ratio of described cold-producing medium surplus.
Compared with prior art, technical scheme provided by the present invention has the advantage that
The detection method of air conditioning unit cold-producing medium surplus provided by the present invention and system, by obtaining sky
Adjust suction temperature and the pressure of inspiration(Pi) of compressor in unit, calculate the actual mass flow of cold-producing medium, logical
Cross air conditioning unit operational mode, indoor temperature and outdoor temperature, obtain the standard mass flow of cold-producing medium,
Then according to described actual mass flow and standard mass flow, air conditioning unit cold-producing medium has been accurately calculated
Surplus, solve the problem that can not accurately detect air conditioning unit cold-producing medium surplus in prior art,
And then solve poor the asking of air conditioning unit reliability caused owing to can not effectively prevent cold-producing medium to leak
Topic.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The air conditioning unit structural representation that Fig. 1 provides for the present invention；
The detection method stream of the air conditioning unit cold-producing medium surplus that Fig. 2 provides for one embodiment of the present of invention
Cheng Tu；
The detecting system of the air conditioning unit cold-producing medium surplus that Fig. 3 provides for an alternative embodiment of the invention
Structural representation.
Detailed description of the invention
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
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
An embodiment provides the detection method of a kind of air conditioning unit cold-producing medium surplus, this
In embodiment, air conditioning unit structural representation is as it is shown in figure 1, include the indoor set heat exchange being positioned at indoor
Device 101 and be positioned at the high pressure fluid reservoir 102 of outside, outdoor unit heat exchanger 103, cross valve 104, gas
Liquid/gas separator 105 and compressor 106, in the present embodiment, arrange temperature-sensitive at the air-breathing mouth of pipe of compressor 106
Bag 1060 and pressure transducer 1061, obtain the air-breathing temperature of compressor in air-conditioning unit by temperature-sensitive bag 1060
Degree, obtains the pressure of inspiration(Pi) of compressor in air-conditioning unit, certainly, the present invention by pressure transducer 1061
It is not limited to that, in other embodiments of the invention, it is also possible to other devices such as vacuometer and temperature
Sensor or be arranged on the temperature-sensitive bag of other positions and pressure transducer to obtain suction temperature and pressure of inspiration(Pi)
Power.
The detection method flow chart of the air conditioning unit cold-producing medium surplus that the present embodiment provides, as in figure 2 it is shown,
Including:
S201: obtain suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；
In the present embodiment, air conditioning unit power on and run certain time after, by being arranged at compressor
Temperature-sensitive bag obtains the suction temperature of compressor in air-conditioning unit, by being arranged on the pressure sensing at compressor
Device obtains the pressure of inspiration(Pi) of compressor in air-conditioning unit, and wherein, the air conditioning unit operation time is at least 15
Minute.
S202: according to described suction temperature and pressure of inspiration(Pi), calculate described air conditioning unit middle cold-producing medium
Actual mass flow；
Specifically, according to described suction temperature and pressure of inspiration(Pi), calculate described air conditioning unit middle cold-producing medium
The process of actual mass flow include:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi)；
The actual mass of described air conditioning unit middle cold-producing medium is calculated according to described inspiratory volume and volume flow
Flow.
Wherein, inspiratory volume can be according to suction temperature, pressure of inspiration(Pi) and the pressure of air conditioning unit middle storage
Enthalpy diagram tables of data is found；The volume flow of compressor is changeless parameter known to compressor；Refrigeration
The actual mass flow of agent is equal to the ratio of volume flow and inspiratory volume, the most air conditioning unit middle cold-producing medium
Actual mass flow is equal to the volume flow inspiratory volume divided by compressor of compressor.
S203: according to operational mode, indoor temperature and outdoor temperature, obtains described air conditioning unit refrigeration
The standard mass flow of agent；
In the present embodiment, detect by the temperature-sensitive bag being arranged on air conditioning unit indoor set and obtain Indoor Temperature
Degree, is detected by the temperature-sensitive bag being arranged on air conditioning unit off-premises station and is obtained outdoor temperature.Wherein, obtain
The process taking standard mass flow can be carried out with the process obtaining actual mass flow simultaneously, it is also possible to
Carrying out before or after obtaining the process of actual mass flow, this is not defined by the present invention.
Specifically, according to operational mode, indoor temperature and outdoor temperature, obtain described air conditioning unit system
The process of the standard mass flow of cryogen includes:
Judge described air conditioning unit operational mode；
If being in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium；
If being in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium.
Wherein, freezing matrix table and heating matrix table is to pre-set and store within air-conditioning systems, square
Indoor temperature is divided for several regions by battle array table, outdoor temperature is divided for several regions,
And the refrigerant mass fluxes standard value that in recording, indoor temperature is corresponding with each region of outdoor temperature, its
In, the interval in the region of indoor temperature and outdoor temperature is the least, the cold-producing medium surplus detected accurate
Spend the highest.
In the present embodiment, in cooling or heating mode, cold-producing medium standard mass flow Q and Indoor Temperature
The corresponding relation of degree t and outdoor temperature t ' is as shown in table 1.
Table 1
S204: according to described actual mass flow and standard mass flow, calculates described air conditioning unit system
The surplus of cryogen.
Specifically, according to described actual mass flow and standard mass flow, calculate described air conditioning unit
The process of the surplus of cold-producing medium includes:
Calculate the difference of described actual mass flow and described standard mass flow；
Judge that whether described difference is less than zero；
If it is not, then the surplus of described air conditioning unit middle cold-producing medium is absolutely；
If it is, according to the ratio of described actual mass flow Yu described standard mass flow, calculate
The percentage ratio of described cold-producing medium surplus.
Wherein, if the difference of actual mass flow and standard mass flow is more than or equal to zero, system is described
The surplus of cryogen is absolutely, and now, air conditioning unit cold-producing medium is sufficient, does not occurs that cold-producing medium is let out
The situation of leakage；If actual mass flow is less than zero with the difference of standard mass flow, then air conditioner is described
The cold-producing medium of group occurs in that leakage, further by calculating the percentage ratio of cold-producing medium surplus, can show
Go out the order of severity of cold-producing medium leakage, in order to user or maintainer keep in repair air conditioning unit, it is to avoid
Owing to can not effectively prevent cold-producing medium leakage and the poor problem of the air conditioning unit reliability that causes.
Based on this, in the present embodiment after calculating the surplus of described air conditioning unit cold-producing medium, also wrap
Include: by the surplus data feedback of described cold-producing medium to described air conditioning unit remote controller, in order to Yong Huhuo
Maintainer checks described air conditioning unit cold-producing medium surplus.
The detection method of the air conditioning unit cold-producing medium surplus that the present embodiment provides, air conditioning unit by obtaining
The suction temperature of middle compressor and pressure of inspiration(Pi), calculate the actual mass flow of cold-producing medium, pass through air-conditioning
The operational mode of unit, indoor temperature and outdoor temperature, obtain the standard mass flow of cold-producing medium, then
According to described actual mass flow and standard mass flow, accurately calculate the surplus of air conditioning unit cold-producing medium
Surplus, solves the problem that can not accurately detect air conditioning unit cold-producing medium surplus in prior art, and then
Solve the problem that the air conditioning unit reliability caused owing to can not effectively prevent cold-producing medium to leak is poor.
An alternative embodiment of the invention provides the detecting system of a kind of air conditioning unit cold-producing medium surplus,
Its structural representation is as it is shown on figure 3, include first acquisition module the 201, first computing module 202, second obtain
Delivery block the 203, second computing module 204 and feedback module 205.
Wherein, the first acquisition module 201 is for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit
Power, and described suction temperature and pressure of inspiration(Pi) are sent to the first computing module 202；First computing module 202
For receiving described suction temperature and pressure of inspiration(Pi), calculate institute according to described suction temperature and pressure of inspiration(Pi)
State the actual mass flow of air conditioning unit middle cold-producing medium, and described actual mass flow is sent to the second meter
Calculate module 204；Second acquisition module 203, for according to operational mode, indoor temperature and outdoor temperature, obtains
Take the standard mass flow of described air conditioning unit cold-producing medium, and described standard mass flow is sent to the
Two computing modules 204；Second computing module 204 is used for receiving described actual mass flow and standard quality stream
Amount, according to described actual mass flow and standard mass flow, calculates described air conditioning unit cold-producing medium
Surplus；Feedback module 205 is for by described the most air conditioning unit for the surplus data feedback of described cold-producing medium
Remote controller, in order to user or maintainer check described air conditioning unit cold-producing medium surplus.
Wherein, the first acquisition module 201 includes being arranged on the temperature-sensitive bag at described air conditioning unit compressor and pressure
Force transducer, described temperature-sensitive bag is used for obtaining described suction temperature, and described pressure transducer is used for obtaining institute
State pressure of inspiration(Pi).In the most as shown in Figure 1 air conditioning unit, temperature-sensitive bag 1060 and pressure transducer 1061 are arranged
At the air-breathing mouth of pipe of compressor 106, then obtained the suction of compressor in air-conditioning unit by temperature-sensitive bag 1060
Temperature, obtains the pressure of inspiration(Pi) of compressor in air-conditioning unit, certainly, originally by pressure transducer 1061
Invention is not limited to that.
In the present embodiment, the first computing module 202 includes acquiring unit and the first computing unit, described acquisition
Unit for obtaining the inspiratory volume of described compressor according to described suction temperature and pressure of inspiration(Pi)；Described
Two computing units are for calculating described air conditioning unit middle cold-producing medium according to described inspiratory volume and volume flow
Actual mass flow.Wherein, inspiratory volume can be according to suction temperature, pressure of inspiration(Pi) and air conditioner
In group, the pressure-enthalpy chart tables of data of storage is found；The volume flow of compressor is to immobilize known to compressor
Parameter；The actual mass flow of cold-producing medium is equal to the ratio of volume flow with inspiratory volume.
Second acquisition module 203 includes the first judging unit, the first performance element and the second performance element, institute
State the first judging unit for judging described air conditioning unit operational mode, if being in refrigeration mode, then
Send the first control instruction to the first performance element, if being in heating mode, then send the second control and refer to
Order is to the second performance element；Described first performance element is used for after receiving described first control instruction,
According to default refrigeration matrix table, indoor temperature and outdoor temperature, obtain described air conditioning unit cold-producing medium
Standard mass flow；Described second performance element is used for after receiving described second control instruction, root
Heat matrix table, indoor temperature and outdoor temperature according to default, obtain described air conditioning unit cold-producing medium
Standard mass flow.
Second computing module 204 includes the second computing unit and the second judging unit, described second computing unit
For calculating the difference of described actual mass flow and described standard mass flow；Described second judging unit
For judging whether described difference is less than zero, if it is not, then the surplus of described air conditioning unit middle cold-producing medium
For absolutely, if it is, according to the ratio of described actual mass flow Yu described standard mass flow,
Calculate the percentage ratio of described cold-producing medium surplus.Wherein, the second judging unit is obtaining the surplus of cold-producing medium
Surplus is absolutely or to calculate according to the ratio meter of described actual mass flow with described standard mass flow
After the percentage ratio of described cold-producing medium surplus, these cold-producing medium surplus data can be sent to feeding back mould
Block, in order to feedback module sends it to remote controller, checks for user or maintainer.
The detecting system of the air conditioning unit cold-producing medium surplus that the present embodiment provides, by being arranged on compressor
The temperature-sensitive bag at place and pressure transducer obtain suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit, and
Calculate the actual mass flow of cold-producing medium, by air conditioning unit operational mode, indoor temperature and outdoor
Temperature, obtains the standard mass flow of cold-producing medium, then according to described actual mass flow and standard quality
Flow, has accurately calculated the surplus of air conditioning unit cold-producing medium, and solving can not be accurate in prior art
The problem detecting air conditioning unit cold-producing medium surplus, and then solve owing to can not effectively prevent cold-producing medium to let out
Leakage and the poor problem of the air conditioning unit reliability that causes.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
For device disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so describing
Fairly simple, relevant part sees method part and illustrates.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (11)
1. the detection method of an air conditioning unit cold-producing medium surplus, it is characterised in that including:
Obtain suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；
According to described suction temperature and pressure of inspiration(Pi), calculate the actual matter of described air conditioning unit middle cold-producing medium
Amount flow；
According to operational mode, indoor temperature and outdoor temperature, obtain the mark of described air conditioning unit cold-producing medium
Quasi-mass flow；
According to described actual mass flow and standard mass flow, calculate described air conditioning unit cold-producing medium
Surplus.
Method the most according to claim 1, it is characterised in that calculating described air conditioning unit system
After the surplus of cryogen, also include:
By the surplus data feedback of described cold-producing medium to described air conditioning unit remote controller, in order to Yong Huhuo
Maintainer checks described air conditioning unit cold-producing medium surplus.
Method the most according to claim 1 and 2, it is characterised in that described according to described air-breathing temperature
Degree and pressure of inspiration(Pi), the process of the actual mass flow calculating described air conditioning unit middle cold-producing medium includes:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi)；
The actual mass of described air conditioning unit middle cold-producing medium is calculated according to described inspiratory volume and volume flow
Flow.
Method the most according to claim 3, it is characterised in that described according to operational mode, indoor
Temperature and outdoor temperature, the process of the standard mass flow obtaining described air conditioning unit cold-producing medium includes:
Judge described air conditioning unit operational mode；
If being in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium；
If being in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to preset,
Obtain the standard mass flow of described air conditioning unit cold-producing medium.
Method the most according to claim 4, it is characterised in that according to described actual mass flow with
Standard mass flow, the process of the surplus calculating described air conditioning unit cold-producing medium includes:
Calculate the difference of described actual mass flow and described standard mass flow；
Judge that whether described difference is less than zero；
If it is not, then the surplus of described air conditioning unit middle cold-producing medium is absolutely；
If it is, according to the ratio of described actual mass flow Yu described standard mass flow, calculate
The percentage ratio of described cold-producing medium surplus.
6. the detecting system of an air conditioning unit cold-producing medium surplus, it is characterised in that including:
First acquisition module, for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit；
First computing module, described air conditioning unit for calculating according to described suction temperature and pressure of inspiration(Pi)
The actual mass flow of middle cold-producing medium；
Second acquisition module, for according to operational mode, indoor temperature and outdoor temperature, obtains described sky
Adjust the standard mass flow of the cold-producing medium of unit；
Second computing module, for according to described actual mass flow and standard mass flow, calculates institute
State the surplus of air conditioning unit cold-producing medium.
System the most according to claim 6, it is characterised in that also include:
Feedback module, for by the surplus data feedback of described cold-producing medium to described air conditioning unit remote control
Device, in order to user or maintainer check described air conditioning unit cold-producing medium surplus.
8. according to the system described in claim 6 or 7, it is characterised in that described first acquisition module bag
Including and be arranged on the temperature-sensitive bag at described air conditioning unit compressor and pressure transducer, described temperature-sensitive bag is used for obtaining
Taking described suction temperature, described pressure transducer is used for obtaining described pressure of inspiration(Pi).
System the most according to claim 8, it is characterised in that described first computing module includes:
Acquiring unit, for obtaining the aspiration ratio of described compressor according to described suction temperature and pressure of inspiration(Pi)
Hold；
First computing unit, described air conditioning unit for calculating according to described inspiratory volume and volume flow
The actual mass flow of middle cold-producing medium.
System the most according to claim 9, it is characterised in that described second acquisition module includes:
First judging unit, for judging described air conditioning unit operational mode, if being in refrigeration mode,
Then sending the first control instruction to the first performance element, if being in heating mode, then sending the second control
Instruction is to the second performance element；
Described first performance element is after receiving described first control instruction, according to default refrigeration matrix
Table, indoor temperature and outdoor temperature, obtain the standard mass flow of described air conditioning unit cold-producing medium；
Described second performance element, after receiving described second control instruction, heats matrix according to default
Table, indoor temperature and outdoor temperature, obtain the standard mass flow of described air conditioning unit cold-producing medium.
11. systems according to claim 10, it is characterised in that described second computing module includes:
Second computing unit, for calculating the difference of described actual mass flow and described standard mass flow；
Second judging unit, is used for judging whether described difference is less than zero, if it is not, then described air conditioner
In group, the surplus of cold-producing medium is absolutely, if it is, according to described actual mass flow with described
The ratio of standard mass flow, calculates the percentage ratio of described cold-producing medium surplus.
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| CN105890116B (en) * | 2016-04-27 | 2019-02-15 | 芜湖美智空调设备有限公司 | The detection method and system of air conditioner coolant leakage |
| CN108692790A (en) * | 2018-05-23 | 2018-10-23 | 夏文才 | A kind of new-energy automotive air-conditioning refrigerant detection device |
| CN110822653B (en) * | 2018-08-10 | 2021-06-04 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner |
| CN110822760B (en) * | 2018-08-14 | 2021-06-04 | 奥克斯空调股份有限公司 | Air conditioner refrigerant system, refrigerant leakage detection method and air conditioner |
| CN109657871B (en) * | 2018-12-27 | 2021-04-16 | 中国航空综合技术研究所 | Refrigerant content prediction method for refrigeration system |
| CN110195910B (en) * | 2019-05-31 | 2021-04-06 | 四川长虹电器股份有限公司 | Refrigerant stock detection method for refrigeration system |
| CN111444580B (en) * | 2020-03-18 | 2022-06-17 | 武汉理工大学 | Ring blank deduction design method and system for rolling large ring piece |
| CN112378134B (en) * | 2020-11-20 | 2021-09-14 | 珠海格力电器股份有限公司 | Refrigerator and refrigerant leakage detection method thereof |
| CN113154730A (en) * | 2021-04-30 | 2021-07-23 | 珠海格力电器股份有限公司 | Refrigerant charge amount calculation method and device and refrigeration equipment |
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| JPH09236332A (en) * | 1996-02-29 | 1997-09-09 | Sanyo Electric Co Ltd | Heat pump apparatus for air conditioning |
| JP4088671B2 (en) * | 2002-10-30 | 2008-05-21 | 株式会社日立製作所 | Refrigeration air conditioner |
| KR20130134347A (en) * | 2012-05-30 | 2013-12-10 | 삼성전자주식회사 | Air conditioner and method for checking refrigerant amount |
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2014
- 2014-11-25 CN CN201410691094.1A patent/CN104457075B/en active Active
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