DK2812640T3 - Fremgangsmåde til detektering af tab af kølemiddel - Google Patents
Fremgangsmåde til detektering af tab af kølemiddel Download PDFInfo
- Publication number
- DK2812640T3 DK2812640T3 DK13706332.7T DK13706332T DK2812640T3 DK 2812640 T3 DK2812640 T3 DK 2812640T3 DK 13706332 T DK13706332 T DK 13706332T DK 2812640 T3 DK2812640 T3 DK 2812640T3
- Authority
- DK
- Denmark
- Prior art keywords
- refrigerant
- detected
- preset
- evaporator
- air temperature
- Prior art date
Links
- 239000003507 refrigerant Substances 0.000 title claims description 198
- 238000000034 method Methods 0.000 title claims description 28
- 238000007906 compression Methods 0.000 claims description 100
- 230000006835 compression Effects 0.000 claims description 97
- 230000008859 change Effects 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims 2
- 238000011897 real-time detection Methods 0.000 claims 1
- 239000003570 air Substances 0.000 description 24
- 239000012530 fluid Substances 0.000 description 17
- 238000005057 refrigeration Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000012080 ambient air Substances 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- 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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
-
- 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
- F25B2600/02—Compressor control
- F25B2600/024—Compressor control by controlling the electric parameters, e.g. current or voltage
-
- 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
- F25B2600/02—Compressor control
- F25B2600/026—Compressor control by controlling unloaders
-
- 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
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
- F25B2700/151—Power, e.g. by voltage or current of the compressor motor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1933—Suction pressures
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21151—Temperatures of a compressor or the drive means therefor at the suction side of the compressor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21172—Temperatures of an evaporator of the fluid cooled by the evaporator at the inlet
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2117—Temperatures of an evaporator
- F25B2700/21171—Temperatures of an evaporator of the fluid cooled by the evaporator
- F25B2700/21173—Temperatures of an evaporator of the fluid cooled by the evaporator at the outlet
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Sorption Type Refrigeration Machines (AREA)
Claims (11)
1. Fremgangsmåde til detektering i realtid af et kølemiddelpåfyldningstab i et køle-middeldampkompressionssystem (10) med et kølemiddelkredsløb, der indbefatter en kølemiddelkompressionsanordning (20), en kølemiddelvarmeafvisningsvarmeveksler (30), en fordamper (50) og en elektronisk ekspansionsventil (55), der er operativt forbundet med fordamperen (50), hvilken fremgangsmåde omfatter: bestemmelse af, hvorvidt både en detekteret overophedning ved fordamperens udgang overstiger en måloverophedning ved fordamperens udgang med mindst en forudindstillet mængde overophedning og en detekteret grad af åbenhed af den elektroniske ekspansionsventil (55) overstiger en forudindstillet grad af åbenhed i et forudbestemt tidsrum; kendetegnet ved, hvis, både den detekterede overophedning ved fordamperens udgang overstiger måloverophedningen ved fordamperens udgang med mindst den forudindstillede mængde overophedning og den detekterede grad af åbenhed af den elektroniske ekspansionsventil (55) overstiger den forudindstillede grad af åbenhed i det forudbestemte tidsrum, at det bestemmes, om mindst én lufttemperatur af en detekteret tilførselslufttemperatur af en luftstrøm, der er strømmet gennem fordamperen (50), eller en detekteret returlufttemperatur af en luftstrøm, der returnerer til fordamperen (50), ændres ved en rate, der er mindre end en forudindstillet ændringsrate for lufttemperatur; hvis den mindst ene lufttemperatur af den detekterede tilførselslufttemperatur af en luftstrøm, der er strømmet gennem fordamperen (50), eller den detekterede returlufttemperatur af en luftstrøm, der returnerer til fordamperen (50), ændres ved en rate, der er mindre end den forudindstillede ændringsrate for lufttemperatur, genereres der en servicealarm, der indikerer en advarsel om varmetab, og det bestemmes, om en detekteret hastighed for kompressionsanordningen (20) er ved en maksimal hastighedsgrænse for kompressionsanordningen (20) i et forudbestemt tidsrum.
2. Fremgangsmåde ifølge krav 1, der endvidere omfatter: hvis den mindst ene lufttemperatur af den detekterede tilførselslufttemperatur af en luftstrøm, der er strømmet gennem fordamperen (50), eller den detekterede returlufttemperatur af en luftstrøm, der returnerer til fordamperen (50), ændres ved en rate, der er mindre end den forudindstillede ændringsrate for lufttemperatur, sammenlignes et detekteret sugetryk for kølemiddel, der passerer til en sugeindgang til kompressionsanordningen (20), med en forudindstillet lav sugetrykgrænse, og hvis det detekterede sugetryk for kølemiddel, der passerer til en sugeindgang til kompressionsanordningen (20), er mindre end den forudindstillede lave sugetrykgrænse for et forudindstillet tidsrum, genereres der en nedlukningsalarm, der advarer om, at en hastende kølemiddelefterfyldning af systemet er påkrævet.
3. Fremgangsmåde ifølge krav 1, der endvidere omfatter: hvis den detekterede hastighed for kompressionsanordningen (20) er mindre end den forudindstillede maksimale hastighedsgrænse for kompressionsanordningens (20) hastighed, sammenlignes et detekteret sugetryk for kølemiddel, der passerer til en sugeindgang til kompressionsanordningen (20), med en forudindstillet lav sugetrykgrænse, og hvis det detekterede sugetryk for kølemiddel, der passerer til en sugeindgang til kompressionsanordningen (20) er mindre end den forudindstillede lave sugetrykgrænse i et forudindstillet tidsrum, genereres der en servicealarm, der indikerer, at en hastende kølemiddelefter-fyldning af systemet er påkrævet.
4. Fremgangsmåde ifølge krav 1, der endvidere omfatter: hvis den detekterede hastighed for kompressionsanordningen (20) er ved den maksimale hastighedsgrænse for kompressionsanordningens (20) hastighed gennem et forudbestemt tidsinterval, sammenlignes et detekteret strømtræk ved kompressionsanordningen (20) med en maksimal strømtrækgrænse.
5. Fremgangsmåde ifølge krav 4, der endvidere omfatter: hvis det detekterede strømtræk overstiger en forudindstillet procentsats af den maksimale strømtrækgrænse, reduceres hastigheden for kompressionsanordningen (20) til en lavere hastighed, hvorved strømtrækket forbundet med den lavere hastighed er under den forudindstillede procentsats af den maksimale strømtrækgrænse.
6. Fremgangsmåde ifølge krav 5, hvor den forudindstillede procentsats af den maksimale strømtrækgrænse er mindst 90 % af det maksimale strømtræk.
7. Fremgangsmåde ifølge krav 4, hvor det forudindstillede tidsinterval er mindst 3 minutter til 10 minutter.
8. Fremgangsmåde ifølge krav 1, der endvidere omfatter, hvis både den detekterede overophedning ved fordamperens udgang overstiger måloverophedningen ved fordamperens udgang med en valgt mængde i intervallet fra mindst 2,8 °C (5 °F) til 11,1 °C (20 °F) og den detekterede grad af åbenhed af den elektroniske ekspansionsventil (55) overstiger 90 % åbenhed i mindst 5 minutter, efterfølgende bestemmelse af, om mindst én lufttemperatur af en detekteret tilførselslufttemperatur af en luftstrøm, der er strømmet gennem fordamperen (50), eller en detekteret returlufttemperatur af en luftstrøm, der returnerer til fordamperen (50), ændres ved en rate, der er mindre end en forudindstillet ændringsrate for lufttemperatur.
9. Fremgangsmåde ifølge krav 1, hvor den forudindstillede ændringsrate for lufttemperatur er 0,27 °C (0,5 °F) pr. minut.
10. Fremgangsmåde ifølge krav 2, hvor kølemidlet omfatter et carbondioxidkølemiddel og den aktuelle lave sugetrykgrænse er et tryk i intervallet fra 8,3 bar absolut (120 psi absolut) til 13,8 bar (200 psi absolut).
11. Fremgangsmåde ifølge krav 10, hvor den forudindstillede lave sugetrykgrænse er ca. 10,3 bar (150 psi absolut).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261597275P | 2012-02-10 | 2012-02-10 | |
| PCT/US2013/024575 WO2013119489A2 (en) | 2012-02-10 | 2013-02-04 | Method for detection of loss of refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK2812640T3 true DK2812640T3 (da) | 2018-11-26 |
Family
ID=47750803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK13706332.7T DK2812640T3 (da) | 2012-02-10 | 2013-02-04 | Fremgangsmåde til detektering af tab af kølemiddel |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9869499B2 (da) |
| EP (1) | EP2812640B1 (da) |
| CN (1) | CN104204697B (da) |
| DK (1) | DK2812640T3 (da) |
| SG (1) | SG11201404722YA (da) |
| WO (1) | WO2013119489A2 (da) |
Families Citing this family (46)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10174977B2 (en) | 2012-11-21 | 2019-01-08 | Vertiv Corporation | Apparatus and method for subcooling control based on superheat setpoint control |
| US9746224B2 (en) | 2012-11-21 | 2017-08-29 | Liebert Corporation | Expansion valve setpoint control systems and methods |
| JP5818849B2 (ja) * | 2013-08-26 | 2015-11-18 | 三菱電機株式会社 | 空気調和装置および冷媒漏洩検知方法 |
| US20150362239A1 (en) * | 2014-06-12 | 2015-12-17 | Chao-Cheng Chen | Variable frequency control apparatus |
| US9638446B2 (en) * | 2014-09-03 | 2017-05-02 | Mahle International Gmbh | Method to detect low charge levels in a refrigeration circuit |
| DE102014013653B4 (de) * | 2014-09-15 | 2016-04-07 | Adwatec Oy | Anordnung und Verfahren zum Kühlen flüssigkeitsgekühlter Elektronik |
| DE102014221106A1 (de) * | 2014-10-17 | 2016-04-21 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zur Steuerung oder Regelung eines Fahrzeugklimaanlagen-Kältemittelkreislaufs |
| JP6394813B2 (ja) * | 2015-09-07 | 2018-09-26 | 三菱電機株式会社 | 冷凍サイクルシステム |
| US9869492B2 (en) * | 2015-10-12 | 2018-01-16 | Heatcraft Refrigeration Products Llc | Air conditioning and refrigeration system |
| JP6895434B2 (ja) * | 2015-11-17 | 2021-06-30 | キャリア コーポレイションＣａｒｒｉｅｒ Ｃｏｒｐｏｒａｔｉｏｎ | 冷却システムの冷媒充填量のロスを検出する方法 |
| US9874384B2 (en) * | 2016-01-13 | 2018-01-23 | Bergstrom, Inc. | Refrigeration system with superheating, sub-cooling and refrigerant charge level control |
| US10578328B2 (en) | 2016-02-11 | 2020-03-03 | Vertiv Corporation | Systems and methods for detecting degradation of a component in an air conditioning system |
| AU201712794S (en) | 2016-11-23 | 2017-05-23 | Dometic Sweden Ab | Ventilation and air conditioning apparatus |
| CN107101323A (zh) * | 2017-04-13 | 2017-08-29 | 青岛海尔空调电子有限公司 | 空调器的冷媒量检测方法及装置 |
| DE112018005883T5 (de) | 2017-11-16 | 2020-07-30 | Dometic Sweden Ab | Klimatisierungsvorrichtung für wohnmobile |
| CN110375468B (zh) | 2018-04-13 | 2022-10-11 | 开利公司 | 风冷热泵系统、用于其的制冷剂泄漏检测方法及检测系统 |
| CN110375466B (zh) | 2018-04-13 | 2022-10-28 | 开利公司 | 用于空气源热泵系统的制冷剂泄露的检测装置和方法 |
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-
2013
- 2013-02-04 DK DK13706332.7T patent/DK2812640T3/da active
- 2013-02-04 US US14/376,890 patent/US9869499B2/en active Active
- 2013-02-04 EP EP13706332.7A patent/EP2812640B1/en active Active
- 2013-02-04 CN CN201380008779.5A patent/CN104204697B/zh active Active
- 2013-02-04 SG SG11201404722YA patent/SG11201404722YA/en unknown
- 2013-02-04 WO PCT/US2013/024575 patent/WO2013119489A2/en not_active Ceased
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|---|---|
| US9869499B2 (en) | 2018-01-16 |
| WO2013119489A2 (en) | 2013-08-15 |
| CN104204697A (zh) | 2014-12-10 |
| CN104204697B (zh) | 2017-02-22 |
| EP2812640A2 (en) | 2014-12-17 |
| SG11201404722YA (en) | 2014-10-30 |
| WO2013119489A3 (en) | 2014-01-30 |
| EP2812640B1 (en) | 2018-08-08 |
| US20150007591A1 (en) | 2015-01-08 |
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