DK3255360T3 - Luftkonditioneringssystem og fremgangsmåde til lækagedetektion i et luftkonditioneringssystem - Google Patents

Luftkonditioneringssystem og fremgangsmåde til lækagedetektion i et luftkonditioneringssystem Download PDF

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DK3255360T3
DK3255360T3 DK17173428.8T DK17173428T DK3255360T3 DK 3255360 T3 DK3255360 T3 DK 3255360T3 DK 17173428 T DK17173428 T DK 17173428T DK 3255360 T3 DK3255360 T3 DK 3255360T3
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Denmark
Prior art keywords
refrigerant
air
conditioning system
temperature
evaporator
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DK17173428.8T
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English (en)
Inventor
Georg Hummel
Sebastian Härtig
Werner Hiller
Daniel Gumpp
Mathias Venschott
Christian Mathe
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Truma Geraetetechnik Gmbh & Co Kg
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00978—Control systems or circuits characterised by failure of detection or safety means; Diagnostic methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00364—Air-conditioning arrangements specially adapted for particular vehicles for caravans or trailers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00878—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being temperature regulating devices
    • B60H1/00885—Controlling the flow of heating or cooling liquid, e.g. valves or pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00985—Control systems or circuits characterised by display or indicating devices, e.g. voice simulators
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B60H2001/3261—Cooling devices information from a variable is obtained related to temperature of the air at an evaporating unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B60H2001/3263—Cooling devices information from a variable is obtained related to temperature of the refrigerant at an evaporating unit
    • 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
    • F25B2400/12—Inflammable refrigerants
    • 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
    • F25B2500/19—Calculation of parameters
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • 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
    • F25B2700/21174—Temperatures of an evaporator of the refrigerant at the inlet of the evaporator
    • 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
    • F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Air-Conditioning For Vehicles (AREA)

Claims (11)

1. Luftkonditioneringssystem (10), især til et fritidsfartøj, omfattende et kølemiddelkredsløb (11), hvor, betragtet i en cirkulationsretning for et kølemiddel, luft-kontidioneringssystemet (10) omfatter en kølemiddelkondensator (12), som kan være i varmeveksling med en omgivelse (14), en kølemiddeldrossel (22), en kølemiddelfordamper (15), som kan være i varmeveksling med et rum (18), som skal luftkonditioneres, og en kølemiddelkompressor (28), hvor luftkonditioneringssystemet (10) omfatter et læ-kagedetektionssystem (32) med en rumtemperaturføler (40), som er konfigureret til at detektere en rumtemperatur (TR)for rummet (18), som skal luftkonditioneres, opstrøms for kølemiddelfordamperen (15) på en luftindgangsside (41), en indløbstemperaturføler (34), som er konfigureret til at detektere en kølemiddeltemperatur ved et kølemiddelindløb (16) til kølemiddelfordamperen (15), en udløbstemperaturføler (36), som er konfigureret til at detektere en kølemiddeltemperatur ved et kølemiddeludløb (17) fra kølemiddelfordamperen (15), og en beregningsenhed (38), som er forbundet med rumtemperaturføleren (40), indløbstemperaturføleren (34) og udløbstemperaturføleren (36), kendetegnet ved, at beregningsenheden er konfigureret til at beregne en udløbsdifferenstemperatur som en difference mellem rumtemperatur og kølemiddeltemperaturen ved kølemiddeludløbet, og en fordamperdifferenstemperatur, som en difference mellem kølemiddeltemperaturen ved kølemiddelindløbet og kølemiddeludløbet.
2. Luftkonditioneringssystem (10) ifølge krav 1, kendetegnet ved, at det omfatter en kølemiddeltæt skilleindretning til i det mindste delvis at adskille kølemiddelkredsløbet (11) fra det rum (18), som skal luftkonditioneres.
3. Luftkonditioneringssystem (10) ifølge krav 2, kendetegnet ved, at skilleindretningen omfatter en kølemiddelindløbsventil (25), som er konfigureret til selektivt at aflukke kølemiddelindløbet (16), og en kølemiddeludløbsventil (31), som er konfigureret til selektivt at aflukke kølemiddeludløbet (17), hvor kølemiddelindløbsventilen (25) og kølemiddeludløbsventilen (31) fortrinsvis er udformede som magnetventiler.
4. Luftkonditioneringssystem (10) ifølge ethvert af kravene 2 eller 3, kendetegnet ved, at skilleindretningen omfatter et kølemiddeltæt spjæld (48), som er konfigureret til at aflukke luftkonditioneringssystemet (10) fra det rum (18), som skal luftkonditioneres.
5. Luftkonditioneringssystem (10) ifølge ethvert af de foregående krav, kendetegnet ved, at lækagedetektionssystemet (32) omfatter en notifikationsenhed (42), som er forbundet med beregningsenheden (38).
6. Luftkonditioneringssystem (10) ifølge ethvert af de foregående krav, kendetegnet ved, at kølemiddelfordamperen (15) er udformet som dobbeltrørsvarmeveksler.
7. Fremgangsmåde til lækagedetektion i et luftkonditioneringssystem (10), især til et fritidsfartøj, omfattende et kølemiddelkredsløb (11), hvor, betragtet i cirkulationsretningen for kølemidlet, luftkonditioneringssystemet (10) omfatter en kølemiddelkondensator (12), som kan være i varmeveksling med en omgivelse (14), en kølemiddeldrossel (22), en kølemiddelfordamper (15), som kan være i varmevekslingen med et rum (18), som skal luftkonditioneres, og en kølemiddelkompressor (28), omfattende følgende trin: a) detektion af en rumtemperatur (TR) for rummet (18), som skal luftkonditioneres, opstrøms for kølemiddelfordamperen (15) på en luftindløbsside (41), b) detektering af en kølemiddelindløbstemperatur (TE) ved en kølemiddelindløb (16) til kølemiddelfordamperen (15), c) detektering af en kølemiddeludløbstemperatur (TA) ved et kølemiddeludløb (17) fra kølemiddelfordamperen (15), d) beregning af en udløbsdifferenstemperatur (TAD) som en difference mellem rumtemperaturen (TR) og kølemiddeludløbstemperaturen (TA), e) beregning af en fordamperdifferenstemperatur (TVD) som en difference mellem kølemiddeludløbstemperaturen (TA) og kølemiddelindløbstemperaturen (TE), f) detektering af en lækage, når udløbsdifferenstemperaturen (TAD) falder og fordamper differenstempeaturen (TVD) stiger med en fastlagt værdi.
8. Fremgangsmåde ifølge krav 7, kendetegnet ved, at efter detektion af en lækage aktiveres en kølemiddeltæt skilleindretning til i det mindste delvis at adskille kølemiddelkredsløbet (11) fra rummet (18), som skal luftkonditioneres.
9. Fremgangsmåde ifølge krav 8, kendetegnet ved, at efter detektion af en lækage aflukkes kølemiddelindløbet (16) til kølemiddelfordamperen (15) ved hjælp af en kølemiddelindløbsventil (25), og kølemiddeludløbet (17) fra kølemiddelfordamperen (15) aflukkes ved hjælp af en kølemiddeludløbsventil (31).
10. Fremgangsmåde ifølge krav 8 eller 9, kendetegnet ved, at efter detektion af en lækage lukkes et kølemiddeltæt spjæld (48), som aflukker luftkonditioneringssystemet (10) fra det rum (18), som skal luftkonditioneres.
11. Fremgangsmåde ifølge ethvert af kravene 7 til 10, kendetegnet ved, at efter detektion af en lækage sendes en elektronisk meddelelse, som fortrinsvis omfatter information om forekomsten af en lækage.
DK17173428.8T 2016-06-08 2017-05-30 Luftkonditioneringssystem og fremgangsmåde til lækagedetektion i et luftkonditioneringssystem DK3255360T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016110585.6A DE102016110585A1 (de) 2016-06-08 2016-06-08 Klimasystem und Verfahren zur Leckageerkennung in einem Klimasystem

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DK17173428.8T DK3255360T3 (da) 2016-06-08 2017-05-30 Luftkonditioneringssystem og fremgangsmåde til lækagedetektion i et luftkonditioneringssystem

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US (1) US10399412B2 (da)
EP (2) EP3255360B1 (da)
JP (2) JP2017219304A (da)
CN (1) CN107477767A (da)
AU (1) AU2017203711B2 (da)
BR (1) BR102017011963B1 (da)
CA (1) CA2968615C (da)
CL (1) CL2017001439A1 (da)
DE (1) DE102016110585A1 (da)
DK (2) DK3428554T3 (da)
MA (2) MA42417B1 (da)
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