EP3225922A1 - Kühl-, klimatisierungs- oder heizsystem - Google Patents

Kühl-, klimatisierungs- oder heizsystem Download PDF

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Publication number
EP3225922A1
EP3225922A1 EP17164347.1A EP17164347A EP3225922A1 EP 3225922 A1 EP3225922 A1 EP 3225922A1 EP 17164347 A EP17164347 A EP 17164347A EP 3225922 A1 EP3225922 A1 EP 3225922A1
Authority
EP
European Patent Office
Prior art keywords
circuit
temperature
hot water
heating
defrosting
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
Application number
EP17164347.1A
Other languages
English (en)
French (fr)
Other versions
EP3225922B1 (de
Inventor
Damien CASTELEYN
Luc Saisset
Emmanuel ANTOINE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Industrielle de Chauffage SIC SAS
Original Assignee
Societe Industrielle de Chauffage SIC SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe Industrielle de Chauffage SIC SAS filed Critical Societe Industrielle de Chauffage SIC SAS
Priority to SI201730719T priority Critical patent/SI3225922T1/sl
Priority to PL17164347T priority patent/PL3225922T3/pl
Publication of EP3225922A1 publication Critical patent/EP3225922A1/de
Application granted granted Critical
Publication of EP3225922B1 publication Critical patent/EP3225922B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
    • F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump

Definitions

  • the invention relates to a system for cooling, air conditioning or heating a building based on the principle of the heat pump and using outside air as a source of thermal energy.
  • the system is of the type with separate heat exchange units in which, on the one hand, the compressor, the expansion device and the first exchanger in which the outside air circulates and, on the other hand, the second heat exchanger are distributed in two separate heat exchange units and at a distance from each other.
  • this type of outdoor unit comprises an evaporator, an air inlet on a first face and an air outlet on a second face opposite to the first.
  • the strategy for defrosting the evaporator of the outdoor unit is to reverse the refrigeration cycle and to take the defrosting energy in at least one hydraulic circuit of the heating network.
  • the tilting of a 3-way valve between the DHW circuit and the heating circuit (also ensuring the cooling and air conditioning functions) is used for this purpose. function, on the devices providing these two services.
  • the implementation of 2 pumps can also provide the same function.
  • the hydraulic design of the installation must provide a system ensuring in all situations a circulation of the heating fluid and a minimum volume thereof.
  • a typical solution is to indicate a minimum water volume for the installation and if necessary to place a buffer tank on the return of the condenser.
  • the operational safety of the device is also associated with a water flow control.
  • the rules of the art stipulate that a heating installation with a centralized regulator, which is for example the case of a heat pump system, must include at least one heat transmitter, usually a radiator, equipped with a heat pump. a non-thermostatic valve, which does not prevent the user from closing said valve but avoids its automatic closing by raising the air temperature of the room.
  • a cooling, air conditioning or heating system according to the invention makes it possible to overcome the disadvantages noted in the state of the art, in particular by proposing to ensure the defrosting of the outdoor unit, whatever the geometry and the characteristics of the hydraulic environment of the condenser.
  • the subject of the invention is a system for cooling, conditioning or heating a building comprising a circuit for modifying the temperature of said building and a hot water heating circuit equipped with a hot water tank, said system being based on the principle of the heat pump using air as an external source and having an external heat exchange unit provided with an evaporator and an indoor unit having a condenser and for heating a secondary fluid flowing alternately in the cooling circuit. heating and the hot water heating circuit where it provides heating of a tertiary fluid supplying the balloon, through an exchanger thermally connecting the secondary and tertiary fluids.
  • the main characteristic of a system according to the invention is that it comprises an automatic control device allowing during defrosting operations of the evaporator carried out by a cycle reversal of the outdoor unit, to stop the circulation of the fluid.
  • secondary circuit in the temperature modification circuit and to redirect said secondary fluid to the exchanger to maintain the secondary fluid at a certain temperature by means of a heat energy withdrawal required for said cycle in the hot water tank via the condenser of the indoor unit.
  • the circuit for modifying the temperature of the building may for example be constituted by a heating circuit, a cooling circuit or an air conditioning circuit. Depending on its use, the temperature modification circuit can either lower or increase the temperature of the building. Nevertheless, such a circuit for modifying the temperature is essentially used as a heating circuit in the context of the present invention.
  • the external heat exchange unit provides a heat exchange with the outside air and comprises at least one heat exchanger in the form of an evaporator.
  • a system according to the invention is thus able to ensure a defrosting of this evaporator by taking a heat energy from the hot water tank via the condenser of the indoor unit.
  • the defrosting of this evaporator is usually carried out by means of the condenser of the indoor unit connected to the temperature modification circuit, which presents risks of frost if it is too small.
  • the condenser of the temperature change circuit is no longer exposed to freezing.
  • the temperature modification circuit may completely or partially substitute for the domestic hot water circuit for transiently providing the defrosting of the evaporator of the external heat exchange unit. .
  • the fact of ensuring the defrosting of the evaporator mainly with the hot water circulation circuit does not mean that this defrosting can not be performed with the temperature modification circuit during well identified periods.
  • the temperature modification circuit is a hydraulic circuit.
  • a control unit controls the various streams of hot water present in the building, in particular to route the hot water stored in the flask to the condenser converted into an evaporator.
  • the hot water circuit is a hot water circuit.
  • a system according to the invention comprises a directional valve capable of managing the two circuits, the defrosting of the evaporator of the outdoor unit being performed in conjunction with the inversion of the refrigerating cycle, by a tilting of the valve to redirect the secondary fluid to the heat exchanger in communication with the tertiary fluid of the balloon, ensuring the permutation of hot sources of said cycle.
  • a control unit drives the valve to send hot water stored in the balloon.
  • the hot water stored in the flask is sent to the condenser via an intermediate heat exchanger, such as a coil.
  • said system comprises two separate pumps capable of managing the two circuits, the defrosting of the evaporator of the outdoor unit being performed together with the reversal of the refrigerating cycle by switching the pump of the temperature change circuit to the hot water circuit pump to redirect the secondary fluid to the heat exchanger in communication with the tertiary fluid of the balloon, ensuring the permutation of hot springs of said cycle.
  • a system according to the invention comprises means for controlling the temperature of the water stored in the balloon.
  • the temperature of the water present in the flask can be adjusted to just what is necessary in relation to the needs of the moment, in terms of defrosting.
  • Another subject of the invention is a method for defrosting an evaporator of an outdoor unit of a system according to the invention.
  • the switching of the two circuits to the hot water circuit can for example be achieved by means of a valve and / or pumps.
  • a method according to the invention comprises a step of controlling the temperature of the sanitary water stored in the balloon.
  • This step of controlling the temperature of the domestic hot water stored in the flask is intended to verify that said water is well able to ensure the defrosting of the evaporator completely and satisfactorily.
  • the control step may for example be carried out by means of measurements made with conventional temperature probes.
  • a method according to the invention comprises a step of preliminary heating of the water present in the flask, if the temperature controlled in the flask is below a predetermined threshold value.
  • a deicing method according to the invention implements a complementary step of heating the water to bring it to a sufficient temperature and allow it to ensure satisfactory defrosting of the evaporator.
  • the preliminary heating step of the flask is carried out by means of an electrical resistance device. It is a simple heating means, proven and well controlled.
  • said method comprises a step of using the temperature modification circuit as a hot source. to defrost the evaporator of the outdoor unit. Indeed, if the conditions are not met at the hot water tank, then the temperature change circuit can be requested to temporarily provide defrosting of the evaporator, while waiting for the hot water tank to become operational.
  • the threshold temperature of the balloon is a function of at least one parameter to be chosen from among the characteristics of the external heat exchange unit, the capacity of the balloon and a condenser placed on the water circuit and the circuit for modifying the temperature. temperature.
  • This threshold temperature is set taking into account the environment of the temperature and domestic hot water circuit, the structural and functional characteristics of the external heat exchange unit, the capacity of the tank and the characteristics the condenser of the indoor unit.
  • Another object of the invention is a building comprising a system according to the invention and allowing the implementation of a method according to the invention.
  • the main characteristic of a building according to the invention is that the defrosting step of the outdoor unit is carried out from a control unit which is able to select the temperature modification circuit or the control circuit. hot water to provide said defrost.
  • a building thus has a dual possibility of defrosting the outdoor unit, one via the temperature modification circuit, the other via the hot water circuit.
  • these two circuits can thus be used alternately, to ensure the same defrosting phase of the evaporator.
  • one of the two circuits may be preferred to the other circuit to ensure the entire defrosting phase, as a function of economic parameters or for reasons of efficiency and efficiency. Indeed, in the case of a forecast of a strong need for hot water, it is the temperature change circuit that will be preferred to ensure the defrosting of the evaporator and thus preserve the hot water for its use original.
  • the selection of the circuit is a function of at least one parameter to be chosen from the temperature of the hot water, the temperature of the circuit for modifying the temperature, the heating rate, and the time slot of use of said circuit.
  • a building 1 comprises a cooling, air conditioning or heating system comprising a circuit in which a secondary fluid circulates, said circuit comprising a heating circuit 2 and a domestic hot water circuit 3 in communication with a heat exchanger 12 immersed in a flask 4 of domestic hot water, wherein circulates a tertiary fluid 13, said system being based on the principle of the heat pump, using air as an external source.
  • the tertiary fluid 13 thus supplies the hot water flask 4 from a source that is an integral part of the building 1 water supply network.
  • This heat pump also uses a thermodynamic cycle based on compression, condensation, the relaxation and evaporation of a fluid primary 11, such as for example R410A, and is intended to heat the secondary fluid of the heating circuit 2 and the hot water circuit 3 sanitary, and the tertiary fluid 13 of the balloon 4.
  • a fluid primary 11 such as for example R410A
  • Such a system conventionally comprises a three-way valve capable of controlling the secondary fluid between the heating circuit 2 and the domestic hot water circuit 3 to the tertiary fluid 13 of the balloon 4.
  • the building 1 comprises an exchange unit 6 external thermal device for ensuring a heat exchange with the outside air, said unit 6 comprising at least one heat exchanger in the form of an evaporator and a cycle reversal valve.
  • Said building 1 also comprises an indoor unit having a condenser 8.
  • the heating circuit 2 comprises the condenser 8 and is capable of supplying hot water with heating elements such as, for example, radiators 10 of the building 1.
  • the evaporator of the external unit 6 being able to undergo ice accumulation phases during the different phases of operation of the cooling system, air conditioning or heating, must undergo defrosting phases to remain operational.
  • the defrosting process described above is exclusively carried out by the use at the hot source of the cooling circuit of the hot water stored in the tank 4. It should be noted that such a method is controlled by a suitable control unit. to take into account all the parameters inherent to the operation of the balloon 4, such as, for example, the temperature, pressure and volume of the water present in said balloon 4, as well as the parameters characterizing at a given moment, all the different constituent elements the heat pump, and in particular the outdoor unit 6. This control unit also makes it possible to control the valve 5 in order to operate the heating circuit 2 and / or the domestic hot water circuit 3.
  • the defrosting of the outdoor unit 6 can be carried out by using as hot source indifferently said two circuits 2, 3.
  • the two circuits 2, 3 can be used alternately over a given period, to ensure the same defrosting phase of the outdoor unit 6 on said period.
  • only one of said circuits 2, 3 is retained to ensure defrosting of the outdoor unit 6, the choice of said circuit 2, 3 being dictated by constraints, such as for example the forecast of a major sanitary use, a significant heating of the building 1, for example in cold weather.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Air Conditioning Control Device (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP17164347.1A 2016-04-01 2017-03-31 Kühl-, klimatisierungs- oder heizsystem Active EP3225922B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201730719T SI3225922T1 (sl) 2016-04-01 2017-03-31 Sistem za hlajenje, klimatiziranje ali segrevanje
PL17164347T PL3225922T3 (pl) 2016-04-01 2017-03-31 Układ chłodzenia, klimatyzacji lub ogrzewania

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1652882A FR3049697B1 (fr) 2016-04-01 2016-04-01 Systeme de rafraichissement, climatisation ou chauffage a unites separees

Publications (2)

Publication Number Publication Date
EP3225922A1 true EP3225922A1 (de) 2017-10-04
EP3225922B1 EP3225922B1 (de) 2021-02-17

Family

ID=56322082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17164347.1A Active EP3225922B1 (de) 2016-04-01 2017-03-31 Kühl-, klimatisierungs- oder heizsystem

Country Status (7)

Country Link
EP (1) EP3225922B1 (de)
DK (1) DK3225922T3 (de)
ES (1) ES2861577T3 (de)
FR (1) FR3049697B1 (de)
PL (1) PL3225922T3 (de)
PT (1) PT3225922T (de)
SI (1) SI3225922T1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730844A3 (de) * 2019-04-25 2020-11-04 Panasonic Intellectual Property Management Co., Ltd. Heizungs- und warmwasserversorgungssystem
CN114963525A (zh) * 2022-01-17 2022-08-30 青岛海尔新能源电器有限公司 热泵热水器、热泵热水器的除霜方法及存储介质
EP4050269A1 (de) * 2021-02-26 2022-08-31 Robert Bosch GmbH Heizeinrichtung, heizsystem und verfahren

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2080975A1 (de) 2008-01-16 2009-07-22 Atlantic Climatisation et Ventilation Vorrichtung zum Wärmeaustausch zwischen Flüssigkeiten, die zwei verschiedenen Kreisläufen angehören
EP2103890A1 (de) * 2008-03-20 2009-09-23 Daikin Industries, Ltd. Heizung und Steuerverfahren für die Heizung
EP2360442A1 (de) * 2008-12-16 2011-08-24 Mitsubishi Electric Corporation Wärmepumpenähnliche warmwasserversorgungsvorrichtung und betriebsverfahren dafür
EP2940407A1 (de) * 2012-12-26 2015-11-04 Daikin Industries, Ltd. Wärmepumpenwarmwasserbereiter
EP2990737A1 (de) * 2013-04-26 2016-03-02 Toshiba Carrier Corporation Heisswasserversorgungsvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2080975A1 (de) 2008-01-16 2009-07-22 Atlantic Climatisation et Ventilation Vorrichtung zum Wärmeaustausch zwischen Flüssigkeiten, die zwei verschiedenen Kreisläufen angehören
EP2103890A1 (de) * 2008-03-20 2009-09-23 Daikin Industries, Ltd. Heizung und Steuerverfahren für die Heizung
EP2360442A1 (de) * 2008-12-16 2011-08-24 Mitsubishi Electric Corporation Wärmepumpenähnliche warmwasserversorgungsvorrichtung und betriebsverfahren dafür
EP2940407A1 (de) * 2012-12-26 2015-11-04 Daikin Industries, Ltd. Wärmepumpenwarmwasserbereiter
EP2990737A1 (de) * 2013-04-26 2016-03-02 Toshiba Carrier Corporation Heisswasserversorgungsvorrichtung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730844A3 (de) * 2019-04-25 2020-11-04 Panasonic Intellectual Property Management Co., Ltd. Heizungs- und warmwasserversorgungssystem
EP4050269A1 (de) * 2021-02-26 2022-08-31 Robert Bosch GmbH Heizeinrichtung, heizsystem und verfahren
CN114963525A (zh) * 2022-01-17 2022-08-30 青岛海尔新能源电器有限公司 热泵热水器、热泵热水器的除霜方法及存储介质
CN114963525B (zh) * 2022-01-17 2024-01-05 青岛海尔新能源电器有限公司 热泵热水器、热泵热水器的除霜方法及存储介质

Also Published As

Publication number Publication date
FR3049697A1 (fr) 2017-10-06
EP3225922B1 (de) 2021-02-17
ES2861577T3 (es) 2021-10-06
SI3225922T1 (sl) 2021-06-30
DK3225922T3 (da) 2021-05-03
PT3225922T (pt) 2021-04-07
FR3049697B1 (fr) 2019-08-02
PL3225922T3 (pl) 2021-08-23

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