CN104457075A - Method and system for detecting remaining amount of refrigerant in air conditioning unit - Google Patents
Method and system for detecting remaining amount of refrigerant in air conditioning unit Download PDFInfo
- Publication number
- CN104457075A CN104457075A CN201410691094.1A CN201410691094A CN104457075A CN 104457075 A CN104457075 A CN 104457075A CN 201410691094 A CN201410691094 A CN 201410691094A CN 104457075 A CN104457075 A CN 104457075A
- Authority
- CN
- China
- Prior art keywords
- cold
- mass flow
- producing medium
- conditioner set
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a method and system for detecting the remaining amount of refrigerant in an air conditioning unit. The method comprises the steps that the air suction temperature and the air suction pressure of a compressor in the air conditioning unit are acquired; the practical mass flow rate of the refrigerant in the air conditioning unit is calculated according to the air suction temperature and the air suction pressure; the standard mass flow rate of the refrigerant in the air conditioning unit is acquired according to an operation mode, indoor temperatures and outdoor temperatures; the remaining amount of the refrigerant in the air conditioning unit is calculated according to the practical mass flow rate and the standard mass flow rate. Accordingly, the problem that the remaining amount of the refrigerant in the air conditioning unit can not be accurately detected in the prior art is solved, and therefore the problem that the reliability of the air conditioning unit is poor due to the fact that the refrigerant can not be effectively prevented from being leaked is solved.
Description
Technical field
The present invention relates to air-conditioning technical field, more particularly, relate to a kind of detection method and system of air-conditioner set cold-producing medium surplus.
Background technology
Cold-producing medium is the blood of air-conditioner set, if refrigrant leakage appears in air-conditioner set, so, the performance of air-conditioner set will decline to some extent.Further, the leakage of cold-producing medium not only can affect the performance of air-conditioner set, and when serious, also can damage the compressor of air-conditioner set.
But, because the leakage of cold-producing medium is relatively hidden, leakage process is also very slow, therefore, a kind of good way is not also had accurately to detect the surplus of cold-producing medium in air-conditioning system at present, thus the problem such as can not effectively prevent the air-conditioner set reliability that causes because of refrigrant leakage poor.
Summary of the invention
In view of this, the invention provides a kind of detection method and system of air-conditioner set cold-producing medium surplus, accurately must not detect the problem of air-conditioner set cold-producing medium surplus with solution, and then solve the poor problem of the air-conditioner set reliability that causes due to effectively refrigrant leakage can not be prevented.
For achieving the above object, the invention provides following technical scheme:
A detection method for air-conditioner set cold-producing medium surplus, comprising:
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 cold-producing medium in described air-conditioner set;
According to operational mode, indoor temperature and outdoor temperature, obtain the standard mass flow of the cold-producing medium of described air-conditioner set;
According to described actual mass flow and standard mass flow, calculate the surplus of described air-conditioner set cold-producing medium.
Preferably, after the surplus calculating described air-conditioner set cold-producing medium, also comprise:
By the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set, so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
Preferably, described according to described suction temperature and pressure of inspiration(Pi), the process calculating the actual mass flow of cold-producing medium in described air-conditioner set comprises:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi);
The actual mass flow of cold-producing medium in described air-conditioner set is calculated according to described inspiratory volume and volume flow.
Preferably, described according to operational mode, indoor temperature and outdoor temperature, the process obtaining the standard mass flow of the cold-producing medium of described air-conditioner set comprises:
Judge the operational mode of described air-conditioner set;
If be in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set;
If be in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to what preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set.
Preferably, according to described actual mass flow and standard mass flow, the process calculating the surplus of described air-conditioner set cold-producing medium comprises:
Calculate the difference of described actual mass flow and described standard mass flow;
Judge whether described difference is less than zero;
If not, then the surplus of cold-producing medium is absolutely in described air-conditioner set;
If so, then according to the ratio of described actual mass flow and described standard mass flow, the percentage of described cold-producing medium surplus is calculated.
A detection system for air-conditioner set cold-producing medium surplus, comprising:
First acquisition module, for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit;
First computing module, for calculating the actual mass flow of cold-producing medium in described air-conditioner set according to described suction temperature and pressure of inspiration(Pi);
Second acquisition module, for according to operational mode, indoor temperature and outdoor temperature, obtains the standard mass flow of the cold-producing medium of described air-conditioner set;
Second computing module, for according to described actual mass flow and standard mass flow, calculates the surplus of described air-conditioner set cold-producing medium.
Preferably, also comprise:
Feedback module, for by the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
Preferably, described first acquisition module comprises the temperature-sensitive bag and pressure sensor that are arranged on described air-conditioner set compressor place, and described temperature-sensitive bag is for obtaining described suction temperature, and described pressure sensor is for obtaining described pressure of inspiration(Pi).
Preferably, described first computing module comprises:
Acquiring unit, for obtaining the inspiratory volume of described compressor according to described suction temperature and pressure of inspiration(Pi);
First computing unit, for calculating the actual mass flow of cold-producing medium in described air-conditioner set according to described inspiratory volume and volume flow.
Preferably, described second acquisition module comprises:
First judging unit, for judging the operational mode of described air-conditioner set, if be in refrigeration mode, then sends the first control instruction to the first performance element, if be in heating mode, then sends the second control instruction to the second performance element;
Described first performance element, after receiving described first control instruction, according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtains the standard mass flow of the cold-producing medium of described air-conditioner set;
Described second performance element, after receiving described second control instruction, heats matrix table, indoor temperature and outdoor temperature according to what preset, obtains the standard mass flow of the cold-producing medium of described air-conditioner set.
Preferably, described second computing module comprises:
Second computing unit, for calculating the difference of described actual mass flow and described standard mass flow;
Second judging unit, for judging whether described difference is less than zero, if not, then in described air-conditioner set, the surplus of cold-producing medium is absolutely, if so, then according to the ratio of described actual mass flow and described standard mass flow, the percentage of described cold-producing medium surplus is calculated.
Compared with prior art, technical scheme provided by the present invention has the following advantages:
The detection method of air-conditioner set cold-producing medium surplus provided by the present invention and system, by obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit, calculate the actual mass flow of cold-producing medium, by the operational mode of air-conditioner set, 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-conditioner set cold-producing medium, solve the problem that accurately can not detect air-conditioner set cold-producing medium surplus in prior art, and then solve the poor problem of the air-conditioner set reliability that causes due to effectively refrigrant leakage can not be prevented.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of air-conditioner set provided by the invention;
The detection method flow chart of the air-conditioner set cold-producing medium surplus that Fig. 2 provides for one embodiment of the present of invention;
The structural representation of the detection system of the air-conditioner set cold-producing medium surplus that Fig. 3 provides for an alternative embodiment of the invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
An embodiment provides a kind of detection method of air-conditioner set cold-producing medium surplus, in the present embodiment, the structural representation of air-conditioner set as shown in Figure 1, comprise the indoor set heat exchanger 101 being positioned at indoor and the high pressure fluid reservoir 102 being positioned at outside, outdoor unit heat exchanger 103, cross valve 104, gas-liquid separator 105 and compressor 106, in the present embodiment, at the air-breathing mouth of pipe place of compressor 106, temperature-sensitive bag 1060 and pressure sensor 1061 are set, the suction temperature of compressor in air-conditioning unit is obtained by temperature-sensitive bag 1060, the pressure of inspiration(Pi) of compressor in air-conditioning unit is obtained by pressure sensor 1061, certainly, the present invention is not limited to this, in other embodiments of the invention, can also other devices as vacuum meter and temperature sensor or be arranged on the temperature-sensitive bag of other positions and pressure sensor to obtain suction temperature and pressure of inspiration(Pi).
The detection method flow chart of the air-conditioner set cold-producing medium surplus that the present embodiment provides, as shown in Figure 2, comprising:
S201: the suction temperature and the pressure of inspiration(Pi) that obtain compressor in air-conditioning unit;
In the present embodiment, air-conditioner set powers on and after running certain hour, the suction temperature of compressor in air-conditioning unit is obtained by the temperature-sensitive bag being arranged on compressor place, the pressure of inspiration(Pi) of compressor in air-conditioning unit is obtained by the pressure sensor being arranged on compressor place, wherein, 15 minutes are at least the running time of air-conditioner set.
S202: according to described suction temperature and pressure of inspiration(Pi), calculates the actual mass flow of cold-producing medium in described air-conditioner set;
Particularly, according to described suction temperature and pressure of inspiration(Pi), the process calculating the actual mass flow of cold-producing medium in described air-conditioner set comprises:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi);
The actual mass flow of cold-producing medium in described air-conditioner set is calculated according to described inspiratory volume and volume flow.
Wherein, inspiratory volume can be found according to the pressure-enthalpy chart tables of data stored in suction temperature, pressure of inspiration(Pi) and air-conditioner set; The volume flow of compressor is the changeless parameter that compressor is known; The actual mass flow of cold-producing medium equals the ratio of volume flow and inspiratory volume, and namely in air-conditioner set, the actual mass flow of cold-producing medium equals the inspiratory volume of volume flow divided by compressor of compressor.
S203: according to operational mode, indoor temperature and outdoor temperature, obtains the standard mass flow of the cold-producing medium of described air-conditioner set;
In the present embodiment, detect by the temperature-sensitive bag be arranged on air-conditioner set indoor set and obtain indoor temperature, detect by the temperature-sensitive bag be arranged on air-conditioner set off-premises station and obtain outdoor temperature.Wherein, the process obtaining standard mass flow can be carried out with the process obtaining actual mass flow simultaneously, and also can carry out before or after the process obtaining actual mass flow, the present invention does not limit this.
Particularly, according to operational mode, indoor temperature and outdoor temperature, the process obtaining the standard mass flow of the cold-producing medium of described air-conditioner set comprises:
Judge the operational mode of described air-conditioner set;
If be in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set;
If be in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to what preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set.
Wherein, refrigeration matrix table is pre-set and store within air-conditioning systems with heating matrix table, in matrix table, indoor temperature is divided in order to several regions, outdoor temperature is divided in order to several regions, and the refrigerant mass fluxes standard value that in record, each region of indoor temperature and outdoor temperature is corresponding, wherein, the interval in the region of indoor temperature and outdoor temperature is less, and the accuracy of the cold-producing medium surplus detected is higher.
In the present embodiment, in cooling or heating mode, the corresponding relation of cold-producing medium standard mass flow Q and indoor temperature 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 the surplus of described air-conditioner set cold-producing medium.
Particularly, according to described actual mass flow and standard mass flow, the process calculating the surplus of described air-conditioner set cold-producing medium comprises:
Calculate the difference of described actual mass flow and described standard mass flow;
Judge whether described difference is less than zero;
If not, then the surplus of cold-producing medium is absolutely in described air-conditioner set;
If so, then according to the ratio of described actual mass flow and described standard mass flow, the percentage of described cold-producing medium surplus is calculated.
Wherein, if the difference of actual mass flow and standard mass flow is more than or equal to zero, illustrate that the surplus of cold-producing medium is absolutely, now, the cold-producing medium of air-conditioner set is sufficient, does not occur the situation of refrigrant leakage; If the difference of actual mass flow and standard mass flow is less than zero, then illustrate that leakage has appearred in the cold-producing medium of air-conditioner set, further by the percentage calculating cold-producing medium surplus, the order of severity of refrigrant leakage can be demonstrated, so that user or maintenance personal keep in repair air-conditioner set, avoid the problem that the air-conditioner set reliability that causes owing to effectively can not prevent refrigrant leakage is poor.
Based on this, in the present embodiment after the surplus calculating described air-conditioner set cold-producing medium, also comprise: by the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set, so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
The detection method of the air-conditioner set cold-producing medium surplus that the present embodiment provides, by obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit, calculate the actual mass flow of cold-producing medium, by the operational mode of air-conditioner set, 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-conditioner set cold-producing medium, solve the problem that accurately can not detect air-conditioner set cold-producing medium surplus in prior art, and then solve the poor problem of the air-conditioner set reliability that causes due to effectively refrigrant leakage can not be prevented.
An alternative embodiment of the invention provides a kind of detection system of air-conditioner set cold-producing medium surplus, its structural representation as shown in Figure 3, comprises the first acquisition module 201, first computing module 202, second acquisition module 203, second computing module 204 and feedback module 205.
Wherein, described suction temperature and pressure of inspiration(Pi) for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit, and are sent to the first computing module 202 by the first acquisition module 201; First computing module 202, for receiving described suction temperature and pressure of inspiration(Pi), calculates the actual mass flow of cold-producing medium in described air-conditioner set according to described suction temperature and pressure of inspiration(Pi), and described actual mass flow is sent to the second computing module 204; Second acquisition module 203, for according to operational mode, indoor temperature and outdoor temperature, obtains the standard mass flow of the cold-producing medium of described air-conditioner set, and described standard mass flow is sent to the second computing module 204; Second computing module 204, for receiving described actual mass flow and standard mass flow, according to described actual mass flow and standard mass flow, calculates the surplus of described air-conditioner set cold-producing medium; Feedback module 205 for by the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
Wherein, the first acquisition module 201 comprises the temperature-sensitive bag and pressure sensor that are arranged on described air-conditioner set compressor place, and described temperature-sensitive bag is for obtaining described suction temperature, and described pressure sensor is for obtaining described pressure of inspiration(Pi).Namely in air-conditioner set as shown in Figure 1, temperature-sensitive bag 1060 and pressure sensor 1061 are arranged on the air-breathing mouth of pipe place of compressor 106, then the suction temperature of compressor in air-conditioning unit is obtained by temperature-sensitive bag 1060, the pressure of inspiration(Pi) of compressor in air-conditioning unit is obtained by pressure sensor 1061, certainly, the present invention is not limited to this.
In the present embodiment, the first computing module 202 comprises acquiring unit and the first computing unit, and described acquiring unit is used for the inspiratory volume obtaining described compressor according to described suction temperature and pressure of inspiration(Pi); Described second computing unit is used for the actual mass flow calculating cold-producing medium in described air-conditioner set according to described inspiratory volume and volume flow.Wherein, inspiratory volume can be found according to the pressure-enthalpy chart tables of data stored in suction temperature, pressure of inspiration(Pi) and air-conditioner set; The volume flow of compressor is the changeless parameter that compressor is known; The actual mass flow of cold-producing medium equals the ratio of volume flow and inspiratory volume.
Second acquisition module 203 comprises the first judging unit, the first performance element and the second performance element, described first judging unit is for judging the operational mode of described air-conditioner set, if be in refrigeration mode, then send the first control instruction to the first performance element, if be in heating mode, then send the second control instruction to the second performance element; Described first performance element is used for after receiving described first control instruction, according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtains the standard mass flow of the cold-producing medium of described air-conditioner set; Described second performance element is used for after receiving described second control instruction, heats matrix table, indoor temperature and outdoor temperature, obtain the standard mass flow of the cold-producing medium of described air-conditioner set according to what preset.
Second computing module 204 comprises the second computing unit and the second judging unit, and described second computing unit is for calculating the difference of described actual mass flow and described standard mass flow; Described second judging unit is for judging whether described difference is less than zero, if not, then in described air-conditioner set, the surplus of cold-producing medium is absolutely, if, then according to the ratio of described actual mass flow and described standard mass flow, calculate the percentage of described cold-producing medium surplus.Wherein, second judging unit is absolutely or after calculating the percentage of described cold-producing medium surplus according to the radiometer of described actual mass flow and described standard mass flow in the surplus obtaining cold-producing medium, these cold-producing medium surplus data can be sent to feedback module, so that feedback module sends it to remote controller, check for user or maintenance personal.
The detection system of the air-conditioner set cold-producing medium surplus that the present embodiment provides, suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit is obtained by the temperature-sensitive bag and pressure sensor being arranged on compressor place, and calculate the actual mass flow of cold-producing medium, by the operational mode of air-conditioner set, 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-conditioner set cold-producing medium, solve the problem that accurately can not detect air-conditioner set cold-producing medium surplus in prior art, and then solve the poor problem of the air-conditioner set reliability that causes due to effectively refrigrant leakage can not be prevented.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. a detection method for air-conditioner set cold-producing medium surplus, is characterized in that, comprising:
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 cold-producing medium in described air-conditioner set;
According to operational mode, indoor temperature and outdoor temperature, obtain the standard mass flow of the cold-producing medium of described air-conditioner set;
According to described actual mass flow and standard mass flow, calculate the surplus of described air-conditioner set cold-producing medium.
2. method according to claim 1, is characterized in that, after the surplus calculating described air-conditioner set cold-producing medium, also comprises:
By the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set, so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
3. method according to claim 1 and 2, is characterized in that, described according to described suction temperature and pressure of inspiration(Pi), and the process calculating the actual mass flow of cold-producing medium in described air-conditioner set comprises:
The inspiratory volume of described compressor is obtained according to described suction temperature and pressure of inspiration(Pi);
The actual mass flow of cold-producing medium in described air-conditioner set is calculated according to described inspiratory volume and volume flow.
4. method according to claim 3, is characterized in that, described according to operational mode, indoor temperature and outdoor temperature, the process obtaining the standard mass flow of the cold-producing medium of described air-conditioner set comprises:
Judge the operational mode of described air-conditioner set;
If be in refrigeration mode, then according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set;
If be in heating mode, then heat matrix table, indoor temperature and outdoor temperature according to what preset, obtain the standard mass flow of the cold-producing medium of described air-conditioner set.
5. method according to claim 4, is characterized in that, according to described actual mass flow and standard mass flow, the process calculating the surplus of described air-conditioner set cold-producing medium comprises:
Calculate the difference of described actual mass flow and described standard mass flow;
Judge whether described difference is less than zero;
If not, then the surplus of cold-producing medium is absolutely in described air-conditioner set;
If so, then according to the ratio of described actual mass flow and described standard mass flow, the percentage of described cold-producing medium surplus is calculated.
6. a detection system for air-conditioner set cold-producing medium surplus, is characterized in that, comprising:
First acquisition module, for obtaining suction temperature and the pressure of inspiration(Pi) of compressor in air-conditioning unit;
First computing module, for calculating the actual mass flow of cold-producing medium in described air-conditioner set according to described suction temperature and pressure of inspiration(Pi);
Second acquisition module, for according to operational mode, indoor temperature and outdoor temperature, obtains the standard mass flow of the cold-producing medium of described air-conditioner set;
Second computing module, for according to described actual mass flow and standard mass flow, calculates the surplus of described air-conditioner set cold-producing medium.
7. system according to claim 6, is characterized in that, also comprises:
Feedback module, for by the surplus data feedback of described cold-producing medium to the remote controller of described air-conditioner set so that user or maintenance personal check the cold-producing medium surplus of described air-conditioner set.
8. the system according to claim 6 or 7, it is characterized in that, described first acquisition module comprises the temperature-sensitive bag and pressure sensor that are arranged on described air-conditioner set compressor place, and described temperature-sensitive bag is for obtaining described suction temperature, and described pressure sensor is for obtaining described pressure of inspiration(Pi).
9. system according to claim 8, is characterized in that, described first computing module comprises:
Acquiring unit, for obtaining the inspiratory volume of described compressor according to described suction temperature and pressure of inspiration(Pi);
First computing unit, for calculating the actual mass flow of cold-producing medium in described air-conditioner set according to described inspiratory volume and volume flow.
10. system according to claim 9, is characterized in that, described second acquisition module comprises:
First judging unit, for judging the operational mode of described air-conditioner set, if be in refrigeration mode, then sends the first control instruction to the first performance element, if be in heating mode, then sends the second control instruction to the second performance element;
Described first performance element, after receiving described first control instruction, according to refrigeration matrix table, indoor temperature and the outdoor temperature preset, obtains the standard mass flow of the cold-producing medium of described air-conditioner set;
Described second performance element, after receiving described second control instruction, heats matrix table, indoor temperature and outdoor temperature according to what preset, obtains the standard mass flow of the cold-producing medium of described air-conditioner set.
11. systems according to claim 10, is characterized in that, described second computing module comprises:
Second computing unit, for calculating the difference of described actual mass flow and described standard mass flow;
Second judging unit, for judging whether described difference is less than zero, if not, then in described air-conditioner set, the surplus of cold-producing medium is absolutely, if so, then according to the ratio of described actual mass flow and described standard mass flow, the percentage of described cold-producing medium surplus is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691094.1A CN104457075B (en) | 2014-11-25 | 2014-11-25 | The detection method of air conditioning unit cold-producing medium surplus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410691094.1A CN104457075B (en) | 2014-11-25 | 2014-11-25 | The detection method of air conditioning unit cold-producing medium surplus and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457075A true CN104457075A (en) | 2015-03-25 |
| CN104457075B CN104457075B (en) | 2016-09-14 |
Family
ID=52903530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410691094.1A Active CN104457075B (en) | 2014-11-25 | 2014-11-25 | The detection method of air conditioning unit cold-producing medium surplus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104457075B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180379A (en) * | 2015-10-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Refrigerant allowance detecting method, device and air conditioner |
| CN105890116A (en) * | 2016-04-27 | 2016-08-24 | 芜湖美智空调设备有限公司 | Detection method and system for leakage of refrigerant of air conditioner |
| CN108692790A (en) * | 2018-05-23 | 2018-10-23 | 夏文才 | A kind of new-energy automotive air-conditioning refrigerant detection device |
| CN109657871A (en) * | 2018-12-27 | 2019-04-19 | 中国航空综合技术研究所 | Amount of refrigerant prediction technique for refrigeration system |
| CN110195910A (en) * | 2019-05-31 | 2019-09-03 | 四川长虹电器股份有限公司 | Refrigerating system coolant stock detection method |
| CN110822760A (en) * | 2018-08-14 | 2020-02-21 | 奥克斯空调股份有限公司 | Air conditioner refrigerant system, refrigerant leakage detection method and air conditioner |
| CN110822653A (en) * | 2018-08-10 | 2020-02-21 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner |
| CN111444580A (en) * | 2020-03-18 | 2020-07-24 | 武汉理工大学 | Ring blank deduction design method and system for rolling large ring piece |
| CN112378134A (en) * | 2020-11-20 | 2021-02-19 | 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160171A (en) * | 1996-02-29 | 1997-09-24 | 三洋电机株式会社 | Heat pump unit for air conditioning |
| CN1499157A (en) * | 2002-10-30 | 2004-05-26 | �����յ�ϵͳ��ʽ���� | Freezing air conditioner |
| KR20130134347A (en) * | 2012-05-30 | 2013-12-10 | 삼성전자주식회사 | Air conditioner and method for checking refrigerant amount |
-
2014
- 2014-11-25 CN CN201410691094.1A patent/CN104457075B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1160171A (en) * | 1996-02-29 | 1997-09-24 | 三洋电机株式会社 | Heat pump unit for air conditioning |
| CN1499157A (en) * | 2002-10-30 | 2004-05-26 | �����յ�ϵͳ��ʽ���� | Freezing air conditioner |
| KR20130134347A (en) * | 2012-05-30 | 2013-12-10 | 삼성전자주식회사 | Air conditioner and method for checking refrigerant amount |
Non-Patent Citations (2)
| Title |
|---|
| 徐荣晋: "《暖通空调设备工程师实务手册》", 31 March 2006, 机械工业出版社 * |
| 杜立志: "冷水机组性能检测与诊断方法研究", 《工程科技Ⅱ辑》 * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180379A (en) * | 2015-10-15 | 2015-12-23 | 珠海格力电器股份有限公司 | Refrigerant allowance detecting method, device and air conditioner |
| CN105180379B (en) * | 2015-10-15 | 2018-06-12 | 珠海格力电器股份有限公司 | A kind of refrigerant excess detection method, device and air conditioner |
| CN105890116A (en) * | 2016-04-27 | 2016-08-24 | 芜湖美智空调设备有限公司 | Detection method and system for leakage of refrigerant of air conditioner |
| 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 |
| CN110822653A (en) * | 2018-08-10 | 2020-02-21 | 奥克斯空调股份有限公司 | Air conditioner refrigerant leakage detection method and air conditioner |
| 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 |
| CN110822760A (en) * | 2018-08-14 | 2020-02-21 | 奥克斯空调股份有限公司 | Air conditioner refrigerant system, 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 |
| CN109657871A (en) * | 2018-12-27 | 2019-04-19 | 中国航空综合技术研究所 | Amount of refrigerant prediction technique for refrigeration system |
| CN110195910A (en) * | 2019-05-31 | 2019-09-03 | 四川长虹电器股份有限公司 | Refrigerating system coolant stock detection method |
| CN111444580A (en) * | 2020-03-18 | 2020-07-24 | 武汉理工大学 | Ring blank deduction design method and system for rolling large ring piece |
| 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 |
| CN112378134A (en) * | 2020-11-20 | 2021-02-19 | 珠海格力电器股份有限公司 | Refrigerator and refrigerant leakage detection method thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104457075B (en) | 2016-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104457075A (en) | Method and system for detecting remaining amount of refrigerant in air conditioning unit | |
| CN103884140B (en) | The control method of the refrigeration compressor ventilating degree of superheat and system | |
| CN103277876B (en) | The control method of the electric expansion valve in air-conditioning system | |
| CN104482630B (en) | A kind of lack of fluorine of air-conditioners guard method, device and air conditioner | |
| CN105509387B (en) | Air-Cooled Heat Pump Unit and electronic expansion valve opening control method therein, air-conditioning | |
| CN103940024B (en) | The Controlling System of conditioner and cooler compressor exhaust temperature and control method | |
| EP1982127B1 (en) | Flow control of refrigerant | |
| CN103900222B (en) | Method for cooling air conditioner electronic control frequency conversion module and air conditioner | |
| US10174986B2 (en) | Heat source machine and control method therefor | |
| CN104566855B (en) | Filter screen dirtying blocks up method for early warning | |
| CN104296946B (en) | The detection method of a kind of air conditioner coolant leakage and system | |
| CN105864984A (en) | Adjusting method and device for indoor unit electronic expansion valve | |
| CN105980784A (en) | Air conditioner | |
| WO2016170668A1 (en) | Air conditioner | |
| CN102818406B (en) | Refrigerant recovery device and method of heat pump of air-conditioner and outdoor unit of air-conditioner | |
| CN103884480A (en) | Refrigerant leak detection method, refrigerant leak detection system and air conditioner | |
| CN104482631B (en) | A kind of lack of fluorine of air-conditioners guard method, device and air conditioner | |
| US20150290758A1 (en) | Cooling system for working fluid of machine tool and method for using thereof | |
| AU2017243880A1 (en) | An air conditioning system | |
| US20200400348A1 (en) | Cooling device, control method, and storage medium | |
| CN107560063A (en) | The control method of low-temperature refrigeration air conditioner | |
| JP2017075760A (en) | Air conditioner | |
| CN104048388A (en) | Control method and device and air conditioner | |
| EP3309469A1 (en) | Return air superheat degree test method for multi-split system and multi-split system | |
| EP2428754A3 (en) | Idle defrosting operation determining device for air conditioning apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |