EP 3553424 A1 20191016 - DETECTION APPARATUS AND METHOD FOR REFRIGERANT LEAKAGE OF AIR SOURCE COOLING ONLY SYSTEM
Title (en)
DETECTION APPARATUS AND METHOD FOR REFRIGERANT LEAKAGE OF AIR SOURCE COOLING ONLY SYSTEM
Title (de)
VORRICHTUNG UND VERFAHREN ZUR DETEKTION VON KÄLTEMITTELLECKAGEN EINES LUFTQUELLENKÜHLSYSTEMS
Title (fr)
PROCÉDÉ ET APPAREIL DE DÉTECTION DE FUITE DE RÉFRIGÉRANT D'UN SYSTÈME DE REFROIDISSEMENT PAR AIR SEULEMENT
Publication
Application
Priority
CN 201810330163 A 20180413
Abstract (en)
The present invention relates to a device and a method for detecting a refrigerant leakage of an air source cooling-only system, wherein the detection method comprises S1: obtaining an operating parameter of an air-cooled cooling-only air source cooling-only system, wherein the operating parameter comprises at least a compressor speed or capacity; S2: comparing the operating parameter with a preset operating parameter interval; S3: updating a cumulative score when the operating parameter falls within the preset operating parameter interval; and S4: determining that a refrigerant leakage has occurred when the cumulative score exceeds a predefined cumulative score, and returning to step S1 when the cumulative score does not exceed the predefined cumulative score. The device and the method for detecting a refrigerant leakage of an air source cooling-only system according to the present invention are simple and reliable, easy in implementation, convenient in application and so on, and can provide automatic detection of a refrigerant leakage, improving the operating efficiency and safety of modules.
IPC 8 full level
F25B 30/00 (2006.01); F25B 49/00 (2006.01)
CPC (source: CN EP US)
F25B 30/00 (2013.01 - EP); F25B 45/00 (2013.01 - US); F25B 49/005 (2013.01 - EP); F25B 49/02 (2013.01 - CN US); F25B 2339/047 (2013.01 - EP); F25B 2345/003 (2013.01 - US); F25B 2500/221 (2013.01 - EP); F25B 2500/222 (2013.01 - CN EP US); F25B 2600/2513 (2013.01 - US); F25B 2700/171 (2013.01 - CN EP US); F25B 2700/1931 (2013.01 - EP US); F25B 2700/21152 (2013.01 - US); F25B 2700/21163 (2013.01 - EP); F25B 2700/21175 (2013.01 - EP)
Citation (search report)
- [XA] JP 2017053566 A 20170316 - JOHNSON CONTROLS HITACHI AIR CONDITIONING TECH (HONGKONG) LTD
- [A] EP 0837293 A2 19980422 - MATSUSHITA ELECTRIC IND CO LTD [JP]
- [A] CN 106524418 A 20170322 - HANDAN MIDEA REFRIGERATION EQUIPMENT CO LTD
- [A] CN 107289599 A 20171024 - SICHUAN CHANGHONG ELECTRIC CO LTD
- [A] EP 1731857 A1 20061213 - MITSUBISHI ELECTRIC CORP [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3553424 A1 20191016; CN 110375467 A 20191025; CN 110375467 B 20220705; US 2019316821 A1 20191017
DOCDB simple family (application)
EP 19167627 A 20190405; CN 201810330163 A 20180413; US 201916381627 A 20190411