WO2014181559A1 - Circulation and heating apparatus - Google Patents

Circulation and heating apparatus Download PDF

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Publication number
WO2014181559A1
WO2014181559A1 PCT/JP2014/052809 JP2014052809W WO2014181559A1 WO 2014181559 A1 WO2014181559 A1 WO 2014181559A1 JP 2014052809 W JP2014052809 W JP 2014052809W WO 2014181559 A1 WO2014181559 A1 WO 2014181559A1
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WO
WIPO (PCT)
Prior art keywords
water
heating panel
heating
detected
human body
Prior art date
Application number
PCT/JP2014/052809
Other languages
French (fr)
Japanese (ja)
Inventor
悟 梁池
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2015515793A priority Critical patent/JP6207600B2/en
Priority to SE1551327A priority patent/SE543218C2/en
Priority to GB1517904.7A priority patent/GB2527013B/en
Priority to CN201420198578.8U priority patent/CN203893283U/en
Publication of WO2014181559A1 publication Critical patent/WO2014181559A1/en

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    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F24D3/14—Tube and panel arrangements for ceiling, wall, or underfloor heating incorporated in a ceiling, wall or floor
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • 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
    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/136—Defrosting or de-icing; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/176—Improving or maintaining comfort of users
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/227—Temperature of the refrigerant in heat pump cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/265—Occupancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/32—Control of valves of switching valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F24H15/38—Control of compressors of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F24H15/385—Control of expansion valves of heat pumps
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • 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
    • F25B31/00—Compressor arrangements
    • F25B31/006—Cooling of compressor or motor
    • F25B31/008—Cooling of compressor or motor by injecting a liquid
    • 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
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/20—Heat consumers
    • F24D2220/2081—Floor or wall heating panels
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • F25B2600/027—Compressor control by controlling pressure
    • F25B2600/0271—Compressor control by controlling pressure the discharge pressure
    • 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
    • F25B2600/2519—On-off 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
    • F25B2700/21—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
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a circulating heating apparatus provided with a heating source.
  • Patent Document 1 discloses that “a compressor that compresses refrigerant, a fluid heat exchanger that exchanges heat between the refrigerant and the fluid to be heated, an expansion mechanism that expands the refrigerant, and between the refrigerant and air.
  • a heat pump cycle having an air heat exchanger that performs heat exchange at the same; one or more floor heating circuits that circulate a heated fluid between the fluid heat exchanger and one or more floor heating devices; and the heat pump cycle.
  • An operation control means for executing one of a heating operation for heating the fluid to be heated in the fluid heat exchanger and a defrosting operation for removing frost from the air heat exchanger by switching the circulation direction of the refrigerant in the fluid heat exchanger; And a hot water temperature adjusting means for adjusting the temperature of the hot water circulated in the floor heating circuit by switching the circulation amount of the heated fluid in the heating circuit.
  • Patent Document 2 states that “the heat medium heating heat exchanger is a water heat exchanger (21), and a water circulation path (1) is obtained by connecting the pump (7) and the floor heating device (3) with piping. ) And the pump (7) is driven to circulate and supply hot water heated by the water heat exchanger (21) as a heating source into the water circulation path (1).
  • An air conditioner is disclosed.
  • Patent Document 3 states that “two capillary tubes having one end connected to the refrigerant main circuit conduit before and after the reversible expansion valve in the refrigerant main circuit and the other ends connected to each other, An air-cooled heat pump refrigeration cycle having a bypass circuit for compressor liquid injection comprising a bypass pipe extending from an interconnected part of a capillary tube to a compressor suction part or a compression process part via a solenoid valve is disclosed. Yes.
  • Patent Document 4 states that “the refrigerant is circulated between the indoor heat exchanger of the indoor unit and the outdoor heat exchanger of the outdoor unit, and the outdoor heat is passed from the indoor heat exchanger through the electric expansion valve.
  • the air conditioner configured to be able to suck a part of the refrigerant going to the exchanger through the bypass line into the compressor, a discharge temperature detecting means for detecting a refrigerant temperature discharged from the compressor, and a refrigerant saturation temperature of the condenser
  • Discharging temperature control means for controlling opening and closing of the on-off valve of the bypass line so as to reach the target discharge temperature
  • target discharge temperature correction means for correcting the target discharge temperature according to the operation amount of the electric expansion valve. Air-conditioner is
  • Patent Document 5 states that “a compressor that compresses refrigerant to a supercritical pressure, a single radiator that exchanges heat between the refrigerant discharged from the compressor and the load-side medium, an expansion valve that decompresses the refrigerant, and An evaporator is connected annularly, a refrigeration cycle in which the refrigerant circulates, a hot water supply circuit that stores a load-side medium heated by the refrigerant flowing through the single radiator in a tank, and a high-pressure side refrigerant pressure is set to a predetermined value.
  • High-pressure control means for controlling to a pressure “the high-pressure control means is a bypass provided in a bypass passage branched from between the radiator and the expansion valve and connected to the suction side of the compressor ”
  • the first expansion valve is disposed on the downstream side of the bypass expansion valve in the bypass flow path and exchanges heat between the low-pressure refrigerant in the bypass flow path and the high-pressure refrigerant in the main flow path.
  • a low-pressure heat exchanger, Pump water heater is disclosed.
  • Patent Document 6 includes a “primary refrigerant circuit in which a compressor, a heat source side heat exchanger, a throttling mechanism, and an intermediate heat exchanger are sequentially piped, and a floor heating panel connected to the intermediate heat exchanger, Based on the information from the secondary-side refrigerant circuit in which the fluid pumps are sequentially connected to the pipe, the human-sensing detection means for detecting a biological reaction on the floor-heating panel provided in the floor-heating panel, and the human-sensing detection means Control means for controlling opening and closing of the electromagnetic valve in the floor heating panel, and the control means for opening and closing the electromagnetic valve, the heat transfer medium heat exchanged in the intermediate heat exchanger to the floor heating panel An air conditioner that controls the supply is disclosed.
  • Patent Document 6 discloses that the human detection means is a pressure detection means, and that the human detection means is a temperature detection means. Is disclosed "
  • Patent Document 7 states that “the airtight container has a compressor having a discharge pressure atmosphere, a condenser, a gas-liquid separator, an expansion valve, and an evaporator, and at least R32 or R32 refrigerant is used as the refrigerant.
  • a "with" refrigeration apparatus is disclosed.
  • Patent Document 8 discloses that “a heat pump cycle apparatus including a refrigerant circuit having a compressor, a use side heat exchanger, an expansion valve, and a heat source side heat exchanger, a condensation pressure detection unit, and a control unit.
  • the control means has a compressor rotation speed increase speed table that stores the increase speed of the compressor rotation speed corresponding to a plurality of condensing pressure values in the use side heat exchanger,
  • the control means detects the condensing pressure by the condensing pressure detecting means, refers to the compressor speed increasing speed table, and detects the compressor speed increasing speed detected based on the condensing pressure
  • a heat pump cycle device is disclosed in which the rotational speed of the compressor after the defrosting operation is increased to a target rotational speed.
  • JP 2009-250577 A (Claim 1) JP 2006-46692 A (Claim 4) JP-A-4-161760 (Claim 1) JP 2008-157550 A (Claim 1) JP-A-2005-315558 (Claims 1 and 7) JP 2010-78181 A (Claim 1, Claim 3, Claim 4) JP 2009-127902 A (Claim 1) JP 2012-7851 A (Claim 1)
  • the water circulating in the circulation heating device is cooled in the opposite direction to that in the heating operation. Therefore, when the heating operation is performed immediately after the end of the defrosting operation, the water circulating in the circulation heating device is cold and the heating panel is also cold, just like when the circulation heating device is turned on. This causes discomfort to residents and the like.
  • patent document 1 and patent document 2 are provided with a heat pump circuit and a hot water type floor heating panel
  • both of these patent documents 1 and patent documents 2 are immediately after power activation. And immediately after the end of the defrosting operation, the circulating water is cold. For this reason, an unpleasant feeling is given to a resident etc.
  • the prior art disclosed in Patent Documents 3 to 5 controls the discharge temperature of the compressor by providing a bypass circuit in the refrigeration cycle and performing liquid injection from the bipal circuit to the compressor.
  • these Patent Documents 3 to 5 are also uncomfortable for residents because the circulating water is cold immediately after the power is turned on and immediately after the completion of the defrosting operation.
  • Patent Document 6 detects a human body on a floor heating panel using a pressure-sensitive sensor or a temperature sensor, and supplies hot water only to the floor heating panel where a person is present. .
  • this patent document 6 is supplied with hot water only to the floor heating panel where there is a person, when a person on the floor heating panel moves to a surrounding floor heating panel where hot water is not supplied, Because the floor temperature is low, it causes discomfort to the person.
  • Patent Document 7 uses R32 as a refrigerant for the refrigeration cycle. Also, an injection circuit is provided in the refrigeration cycle, and the refrigerant is injected into the compressor from the injection circuit. Although the discharge temperature control of the compressor is performed, this Patent Document 7 also feels uncomfortable for residents because the circulating water is cold immediately after turning on the power and immediately after the defrosting operation.
  • Patent Document 8 calculates an increase speed of the rotation speed (frequency) of the compressor based on the condensation pressure, and attempts to suppress the compressor discharge pressure from overshooting. However, until the capacity of the refrigeration cycle is increased to some extent, cold water is supplied to indoor units such as a heating panel, which causes discomfort to residents and the like.
  • the present invention has been made against the background of the above-described problems. While heating a person's heating panel as quickly as possible, even if a person moves to another heating panel, the circulation heating does not impair the comfort as much as possible. A device is provided.
  • the circulation heating device includes a pump for circulating water, a heating source for heating water fed by the pump, a plurality of heating panels through which water heated by the heating source circulates, and a plurality of heating panels
  • a human body detecting means for detecting the presence or absence of an upper person, and a water heating panel in which water is detected by the human body detecting means, and a heating panel in which human being is detected by the human body detecting means
  • the amount of water supplied to the heating panel that is supplied to any of the other heating panels and is detected by the human body detection means is detected by the human body detection means. More than the amount of water supplied to other heating panels other than the heated heating panel.
  • the heating panel where the person is present since the amount of water supplied to the heating panel where the person is present is larger than the amount of water supplied to the heating panel around the heating panel, the heating panel where the person is present is preferentially warmed. However, the surrounding heating panel is also warmed. For this reason, even if the person on a heating panel moves to the surrounding heating panel, since the surrounding heating panel is also warm, it can suppress giving a discomfort to the moved person.
  • FIG. 1 is a circuit diagram showing a circulation heating device 1 according to Embodiment 1.
  • FIG. 3 is a flowchart showing the operation of the circulating heating apparatus 1 according to the first embodiment.
  • FIG. 3 is a graph showing the water flow rate in the first embodiment.
  • FIG. 6 is a circuit diagram showing a circulation heating device 1 according to a modification of the first embodiment.
  • FIG. 5 is a circuit diagram showing a circulating heating apparatus 1 according to a second embodiment. 6 is a flowchart showing the operation of the circulating heating apparatus 1 according to the second embodiment.
  • FIG. 6 is a graph showing the water flow rate in the second embodiment.
  • FIG. 5 is a circuit diagram showing a circulating heating apparatus 1 according to a third embodiment.
  • FIG. 9 is a graph showing a discharge temperature target value in the third embodiment.
  • FIG. 6 is a circuit diagram showing a circulating heating apparatus 1 according to a fourth embodiment.
  • FIG. 10 is a circuit diagram showing a circulating heating apparatus 1 according to a fifth embodiment.
  • FIG. 10 is a circuit diagram showing a circulating heating apparatus 1 according to a sixth embodiment.
  • 18 is a flowchart showing the operation of the circulating heating apparatus 1 according to the seventh embodiment. It is a schematic diagram which shows heating panel 6a, 6b, 6c installed in the living room. It is a schematic diagram which shows heating panel 6a, 6b, 6c installed in the living room. It is a schematic diagram which shows the heating panels 6a, 6b, 6c installed in each room.
  • FIG. 1 is a circuit diagram showing a circulating heating apparatus 1 according to the first embodiment. Based on this FIG. 1, the circulation heating apparatus 1 is demonstrated. As shown in FIG. 1, the circulation heating device 1 includes a pump 5 that circulates water, a first heat exchanger 12 that acts as a heating source 2 that heats water flowing from the pump 5, and three heating units. Panels 6a, 6b, 6c and three human body detection means 6ah, 6bh, 6ch are provided. The water circuit 3 is comprised by connecting these cyclically
  • flow path switching valves 7a, 7b, 7c are provided, respectively, and by adjusting the opening degree of the flow path switching valves 7a, 7b, 7c, respectively. The amount of water flowing through each heating panel 6a, 6b, 6c can be adjusted.
  • FIG. 4 is a circuit diagram showing the circulation heating apparatus 1 according to a modification of the first embodiment.
  • the present invention may also be provided with a tank 31 in the water circuit 3. it can.
  • the water heated by the first heat exchanger 12 can be temporarily stored in the tank 31 and taken out from the tank 31 when necessary.
  • the heating panels 6a, 6b, 6c are heated by circulating the water heated by the first heat exchanger 12, and for example, warm the floor on which the heating panels 6a, 6b, 6c are installed.
  • the human body detection means 6ah, 6bh, 6ch detects the presence or absence of a person on the heating panels 6a, 6b, 6c.
  • a thermopile or a strain gauge may be used.
  • a heating panel outlet water temperature sensor is attached to the outlet side of each heating panel 6a, 6b, 6c, and the detection is performed based on the water temperature detected by the heating panel outlet water temperature sensor. Also good.
  • thermopile may attach to other apparatuses, for example, the indoor unit of an air-conditioner, etc., and may detect the person on heating panel 6a, 6b, 6c in cooperation with the circulation heating apparatus 1.
  • FIG. a person can be detected by combining these human body detection means 6ah, 6bh, and 6ch.
  • the refrigerant circuit 4 including the first heat exchanger 12 that is the heating source 2 will be described.
  • the refrigerant circuit 4 includes a compressor 11, a first heat exchanger (hereinafter referred to as a water refrigerant heat exchanger) 12, an expansion valve 13 that is an expansion means, and a second heat exchanger (hereinafter referred to as an air refrigerant heat exchanger). 14 and a fan 15, which are sequentially connected in an annular fashion by piping.
  • R410A can be used as the refrigerant.
  • the high-temperature and high-pressure refrigerant discharged from the compressor 11 circulates in the water refrigerant heat exchanger 12 acting as a condenser, and exchanges heat with water flowing in the water circuit 3 by the water refrigerant heat exchanger 12. It is condensed and becomes a low-temperature and high-pressure refrigerant.
  • the low-temperature and high-pressure refrigerant is decompressed by the expansion valve 13 and becomes a low-temperature and low-pressure refrigerant.
  • This low-temperature and low-pressure refrigerant flows through the air refrigerant heat exchanger 14 and is evaporated by exchanging heat with the air taken in from the fan 15 by the air-refrigerant heat exchanger 14 acting as an evaporator. Become.
  • the high-temperature and low-pressure refrigerant flows through the compressor 11.
  • the first heat exchanger 12 in the refrigeration cycle is used as the heating source 2, but the present invention is not limited thereto, and for example, a water heater using gas or the like may be used. .
  • the circulating heating apparatus 1 is provided with a control means 21, and the control means 21 controls the frequency of the compressor 11, the opening degree of the expansion valve 13, the amount of water supplied by the pump 5, and the like. is doing.
  • frost adheres to the air refrigerant heat exchanger 14
  • the heating capacity of the circulating heating device 1 is reduced, so that it is necessary to remove the frost adhering to the air refrigerant heat exchanger 14.
  • the water refrigerant heat exchanger 12 causes the water circuit 3 to Is heated to warm the heating panels 6a, 6b, 6c. Since the air refrigerant heat exchanger 14 is cooled during the heating operation, frost may adhere to the air refrigerant heat exchanger 14.
  • Defrosting operation is performed in order to remove frost adhering to the air refrigerant heat exchanger 14.
  • the defrosting operation can be realized by providing the refrigerant circuit 4 with a four-way valve.
  • the refrigerant flow direction in the refrigerant circuit 4 is switched to the four-way valve to reverse the heating operation. That is, the high-temperature and high-pressure refrigerant discharged from the compressor 11 flows to the air refrigerant heat exchanger 14 acting as a condenser, and is condensed by exchanging heat with air by the air refrigerant heat exchanger 14. Becomes a refrigerant.
  • This low-temperature and high-pressure refrigerant is decompressed by the expansion valve 13 to become a low-temperature and low-pressure refrigerant, and this low-temperature and low-pressure refrigerant then circulates in the water refrigerant heat exchanger 12 acting as an evaporator.
  • the water refrigerant heat exchanger 12 evaporates by exchanging heat between the low-temperature and low-pressure refrigerant and the water flowing in the water circuit 3. As a result, the refrigerant becomes a high-temperature and low-pressure refrigerant, and this high-temperature and low-pressure refrigerant flows to the compressor 11.
  • the frost is melted and removed by circulating a high-temperature refrigerant through the air refrigerant heat exchanger 14.
  • the water / refrigerant heat exchanger 12 acts as an evaporator, so that water flowing through the water circuit 3 is cooled.
  • heating panel 6a, 6b, 6c is cooled.
  • the air refrigerant heat exchanger 14 is heated by providing an electric heater or the like in the air refrigerant heat exchanger 14 and stopping the circulation of the refrigerant. You may employ
  • the discharge side of the compressor 11 and between the air refrigerant heat exchanger 14 and the expansion valve 13 are bypassed by piping, and the high-temperature and high-pressure refrigerant discharged from the compressor 11 is passed to the air refrigerant heat exchanger 14. It is also possible to adopt a hot gas bypass system that defrosts by flowing.
  • FIG. 2 is a flowchart showing the operation of the circulating heating apparatus 1 according to the first embodiment
  • FIG. 3 is a graph showing the water flow rate in the first embodiment.
  • step S1 it is determined whether the power supply of the circulating heating device 1 is ON or after the defrosting is completed. If the power supply to the circulating warming device 1 is OFF or not after defrosting, the operation in the present embodiment is not performed, so the control flow ends (No in step S1). On the other hand, when the power supply of the circulation heating apparatus 1 is ON or after the defrosting is completed, the process proceeds to the next step (Yes in step S1).
  • the control means 21 lowers the water supply amount of the pump 5 by a predetermined amount from the normal operation (operation not immediately after turning on the power or immediately after defrosting), for example, the value A (Step S2). Even if the amount of exchange heat in the water refrigerant heat exchanger 12 is the same, the water temperature on the outlet side of the water refrigerant heat exchanger 12 can be raised by making the amount of water supplied by the pump 5 lower than in normal operation. .
  • the exchange heat quantity Q of the heat exchanger 12 is obtained from the following formula (1).
  • the water flow rate Gw is reduced. That is, since the denominator of the second term in the above formula (2) becomes small, the second term itself becomes large if the exchange heat quantity Q is the same. Therefore, the outlet water temperature Twout can be raised by reducing the amount of water supplied by the pump 5. Moreover, the flow rate of the water which flows through the water-refrigerant heat exchanger 12 is also reduced by reducing the amount of water sent by the pump 5. For this reason, the heat transfer coefficient on the water side in the water-refrigerant heat exchanger 12 can be reduced, and the condensing temperature of the refrigerant can be quickly raised.
  • the exchange heat quantity Q of the water-refrigerant heat exchanger 12 is expressed by Desired.
  • step S2 after reducing the amount of water delivered by the pump 5, the heating panel 6a, 6b, 6c, which is detected by the human body detection means 6ah, 6bh, 6ch, Heated water is preferentially supplied.
  • the heating panel 6a, 6b, 6c which is detected by the human body detection means 6ah, 6bh, 6ch.
  • Heated water is preferentially supplied.
  • less water is supplied to the heating panel around the heating panel where the presence of a person is detected than the amount supplied to the heating panel where the presence of a person is detected (step S3).
  • step S4 it is determined whether a predetermined time has elapsed. If the predetermined time has not elapsed, step S4 is repeated until this time elapses (No in step S4). If the predetermined time has elapsed, the process proceeds to the next step (Yes in step S4). For example, as shown in FIG. 3A, this time can be set to a time when the return water temperature (outlet water temperature) of the water refrigerant heat exchanger 12 reaches the return water temperature during normal operation.
  • step S5 the opening degree of one of the flow path switching valves whose flow path switching valve is not 100% is set to 100%, and the flow path switching valve is opened.
  • Water is circulated through the heating panel provided on the downstream side (step S5).
  • the flow path switching valves 7b and 7c that are 50% open are opened 100%.
  • step S6 by slightly increasing the amount of water supplied from the pump 5 (step S6), the flow rate of water flowing through the water circuit 3 slightly increases as shown in FIG.
  • step S3 after the power is turned on or after the defrosting is finished, the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah is equal to the amount of water supplied by the human body detection means 6ah.
  • the first state is a state in which the amount of water supplied to the other heating panel 6b and the heating panel 6c other than the heating panel 6a detected to be present is the first state, The second state is different from the first state.
  • the human body detection means 6ah detects that there is a person in the heating panel 6a.
  • the amount of water supplied to the other heating panel 6b and the heating panel 6c is set to be close to the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah. be able to.
  • step S7 it is determined whether the opening degree of each flow path switching valve 7a, 7b, 7c is 100% (step S7). If at least one of the plurality of flow path switching valves 7a, 7b, and 7c is not 100% open, the process returns to step S4 to determine again whether a predetermined time has elapsed ( No in step S7). On the other hand, when all the openings of the plurality of flow path switching valves 7a, 7b, 7c are 100%, this control is terminated (Yes in step S7), and the normal operation is started.
  • heated water is preferentially distributed to the heating panel 6a in which people are present. Therefore, even if the water supply amount of the pump 5 is reduced, the water flowing in the heating panel is reduced. A decrease in flow rate can be suppressed. For this reason, warm water can be rapidly supplied to heating panel 6a, 6b, 6c. Moreover, since not only the heating panel 6a with a person but the surrounding heating panels 6b and 6c are also warmed, even if the person on the heating panel 6a moves to the surrounding heating panels 6b and 6c, it is warm. . For this reason, the comfort of the person who uses a heating panel can be improved.
  • the above operation is performed when the power is turned on or after the completion of the defrosting. However, the above operation may be performed in a normal operation other than these. In this case, since the warm water is not supplied to the heating panel without a person, energy consumption can be suppressed.
  • step S3 the flow path switching valve 7a on the upstream side of the heating panel 6a where it is detected that there is a person is opened 100%. And the heating panel 6b around the heating panel 6a, that is, the flow path switching valve 7b on the upstream side of the heating panel 6b adjacent to the heating panel 6a is opened by 50%. Furthermore, other than the heating panel 6a and the surrounding heating panel 6b, a flow path switching valve on the upstream side of the other heating panel 6c, that is, the heating panel 6c that is not adjacent to the heating panel 6a detected to have a person. 7c is also 50% open. However, the present invention is not limited to this, and may have other configurations.
  • the flow path switching valve 7a on the upstream side of the heating panel 6a is opened 100%
  • the flow path switching valve 7b on the upstream side of the heating panel 6b is opened 50%
  • the flow path switching valve 7c on the upstream side of the heating panel 6c. May be closed.
  • 67% of the water flowing through the water circuit 3 flows to the heating panel 6a
  • the remaining 33% of the water flows to the heating panel 6b
  • the flow path switching valve 7a upstream of the heating panel 6a is opened 100%
  • the flow path switching valve 7b upstream of the heating panel 6b is opened 50%
  • the upstream flow path of the heating panel 6c may be opened by 25%. In this case, 57% of the water flowing in the water circuit 3 flows to the heating panel 6a, 29% of the remaining 43% flows to the heating panel 6b, and 14% of the remaining 43% of the water is heated. It flows to the panel 6c.
  • the heating panel 6b is also warmed, so that the person who has moved does not feel uncomfortable, Furthermore, even if it moves from the heating panel 6b to the heating panel 6c, the moving panel does not feel uncomfortable because the heating panel 6c is also warmed. Furthermore, since the amount of water flowing through the heating panel 6c that is unlikely to be immediately moved by a person is less than the amount of water flowing through the heating panel 6b that is expected to be moved immediately, energy saving and comfort are provided. And both.
  • the amount of water supplied to the heating panel 6a detected by the human body detection unit 6ah is determined based on the amount of water supplied to the heating panel 6a detected by the human body detection unit 6ah. More than the amount of water supplied to the surrounding heating panel 6b and the amount of water supplied to the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah It is supplied to the other heating panel 6c other than the heating panel 6a detected by the detection means 6ah and the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah. The amount of water that can be increased. Thereby, as above-mentioned, coexistence of energy-saving property and comfort can be aimed at.
  • the amount of water supplied to the heating panel 6b around the heating panel 6a that is detected by the human body detection means 6ah. May be brought close to the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah.
  • FIG. 14 is a schematic diagram showing the heating panels 6a, 6b, 6c installed in the living room.
  • a living room for example, a living / dining kitchen
  • the living room L is provided with a heating panel 6a and a heating panel 6b
  • the dining kitchen DK is provided with a heating panel 6c.
  • the present invention can also be applied to such a circulation heating apparatus.
  • the amount of water supplied to the heating panel 6a that is detected to have a person is set to a value other than the heating panel 6a.
  • the amount of water supplied to the other heating panel 6b and the heating panel 6c can be increased.
  • the amount of water supplied to the heating panel 6a in which the person is detected is determined by the heating panel 6a. More than the amount of water supplied to the heating panel 6b adjacent to the heating panel 6a, that is, the heating panel 6b adjacent to the heating panel 6a. The amount of water supplied to other heating panels 6c other than the surrounding heating panel 6b, that is, the heating panel 6c that is not adjacent to the heating panel 6a in which people are present may be increased.
  • the heating panel 6b is also warmed. Furthermore, even if it moves from the living room L to the dining kitchen DK, that is, from the heating panel 6b to the heating panel 6c, since the heating panel 6c is also warmed, the moved person does not feel uncomfortable. Play. In addition to this, the amount of water flowing in the heating panel 6c installed in the dining kitchen DK, which is unlikely to be immediately moved by the person, is heated in the living room L where the person is expected to move immediately. Since it is less than the amount of water flowing through the panel 6b, it is possible to ensure energy saving. That is, both comfort and energy saving can be achieved. FIG.
  • FIG. 15 is a schematic diagram showing the heating panels 6a, 6b, and 6c installed in the living room.
  • a living room for example, a living / dining kitchen
  • the living L is provided with a heating panel 6 a
  • the dining D is provided with a heating panel 6 b
  • the kitchen K is heated.
  • a panel 6c is provided.
  • the present invention can also be applied to a circulation heating apparatus in a living dining kitchen as shown in FIG.
  • FIG. 5 is a circuit diagram showing the circulating heating apparatus 1 according to the second embodiment
  • FIG. 6 is a flowchart showing the operation of the circulating heating apparatus 1 according to the second embodiment
  • FIG. It is a graph which shows a water flow rate.
  • an inlet water temperature sensor 32 a that detects the water temperature is provided on the inlet side of the water refrigerant heat exchanger 12, and the water temperature is set on the outlet side of the water refrigerant heat exchanger 12.
  • the difference from Embodiment 1 is that an outlet water temperature sensor 32b to be detected is provided.
  • the description of the parts common to the first embodiment will be omitted, and the difference from the first embodiment will be mainly described.
  • step S4 it is determined whether the water temperature detected by the inlet water temperature sensor 32a or the water temperature (return water temperature) detected by the outlet water temperature sensor 32b has reached a predetermined water temperature (step S4).
  • Step S4 is repeated until the return water temperature becomes equal to or higher than the predetermined value (No in Step S4).
  • the process proceeds to the next step (Yes in step S4).
  • the subsequent operations are the same as those in the first embodiment.
  • the water supply amount of the pump 5 and the flow path switching valves of the heating panels 6a, 6b, 6c are adjusted by the water temperature, but this adjustment may be performed by the bed temperature.
  • a floor temperature sensor is provided in the heating panels 6a, 6b, and 6c, and it is determined whether or not the floor temperature detected by the floor temperature sensor reaches a predetermined bed temperature.
  • the same effects as those of the second embodiment are obtained.
  • FIG. 8 is a circuit diagram showing the circulating heating device 1 according to the third embodiment
  • FIG. 9 is a diagram in which a graph showing the discharge temperature target value of the compressor 11 in the third embodiment is added to the graph of FIG. It is.
  • the present embodiment is different from the second embodiment in that a discharge temperature sensor 33 is provided on the discharge side of the compressor 11.
  • the description of the parts common to the first and second embodiments is omitted, and the difference from the first and second embodiments will be mainly described.
  • the discharge temperature sensor 33 detects the discharge temperature of the refrigerant discharged from the compressor 11. Then, when the power is turned on or after the defrosting is completed, the target discharge temperature (discharge temperature target value) is increased as shown in FIG.
  • the target discharge temperature discharge temperature target value
  • the refrigerant temperature supplied from the compressor 11 can be quickly increased by setting the target discharge temperature high. Therefore, the water refrigerant heat exchanger 12 can also quickly raise the temperature of the water exchanged with this refrigerant. For this reason, the comfort of the person who uses heating panel 6a, 6b, 6c can be improved by supplying this warm water to heating panel 6a, 6b, 6c.
  • 9A is the same as FIG. 7A
  • FIG. 9B is the same as FIG. 7B
  • FIG. 9C is the same as FIG. 7C. It is.
  • FIG. 10 is a circuit diagram showing the circulating heating apparatus 1 according to the fourth embodiment. As shown in FIG. 10, the present embodiment is different from the third embodiment in that a bypass circuit 34 is provided. In the fourth embodiment, the description of the parts common to the first, second, and third embodiments will be omitted, and the difference from the first, second and third embodiments will be mainly described.
  • the outlet side of the water refrigerant heat exchanger 12 and the suction side of the compressor 11 are bypassed by the bypass pipe 34a.
  • the bypass pipe 34 a is provided with a bypass flow rate adjustment valve 34 b that adjusts the flow rate of the refrigerant flowing through the bypass circuit 34.
  • the discharge temperature target value of the compressor 11 is increased. In such a case, the discharge temperature may be excessively increased.
  • the bypass refrigerant 34 bypasses the liquid refrigerant that has passed through the water refrigerant heat exchanger 12 to the suction side of the compressor 11 to adjust an excessive increase in the discharge temperature of the compressor 11. .
  • the heating panel 6a, 6b, 6c can be prevented from reducing the circulation amount of the refrigerant while suppressing the discharge temperature from rising excessively. Hot water can be supplied.
  • FIG. 11 is a circuit diagram showing the circulating heating apparatus 1 according to the fifth embodiment. As shown in FIG. 11, the present embodiment is different from the fourth embodiment in that an accumulator 35 is provided. In the fifth embodiment, description of parts common to the first, second, third, and fourth embodiments will be omitted, and description will be made focusing on differences from the first, second, third, and fourth embodiments.
  • an accumulator 35 that separates the gas refrigerant and the liquid refrigerant is provided on the suction side of the compressor 11.
  • FIG. 12 is a circuit diagram showing the circulating heating apparatus 1 according to the sixth embodiment. This embodiment is different from the fifth embodiment in that a four-way valve 36 is provided as shown in FIG. In the sixth embodiment, description of parts common to the first, second, third, fourth, and fifth embodiments will be omitted, and differences from the first, second, third, fourth, and fifth embodiments will be mainly described. .
  • the refrigerant flow direction in the refrigerant circuit 4 can be changed, and not only the heating operation but also the defrosting operation can be performed. That is, during the heating operation, the refrigerant flows in the order of the compressor 11, the water refrigerant heat exchanger 12, the expansion valve 13, the air refrigerant heat exchanger 14, and the accumulator 35. In contrast, during the defrosting operation, the refrigerant flows in the order of the compressor 11, the air refrigerant heat exchanger 14, the expansion valve 13, the water refrigerant heat exchanger 12, and the accumulator 35. In this defrosting operation, since the water refrigerant heat exchanger 12 acts as an evaporator, the water flowing through the water circuit 3 is cooled. Thereby, contrary to heating operation, heating panel 6a, 6b, 6c is cooled.
  • the flow path switching valve is opened, and the heating panel in which the person is detected is detected. In, the flow path switching valve is closed.
  • the defrosting operation can be performed by providing the four-way valve 36.
  • the present invention is not limited to this, and any configuration that can heat the air refrigerant heat exchanger 14 may be used.
  • the sixth embodiment can be implemented even if the configuration in the first embodiment is not provided.
  • a heating source 2 a plurality of heating panels through which water heated by the heating source 2 circulates, and a human body detection means for detecting the presence or absence of a person on the plurality of heating panels are provided. That's fine. Then, during the defrosting operation, water is supplied to the heating panels 6b and 6c where it is detected that there is no person in the human body detection means 6bh and 6ch, and the heating panel 6a in which the person is detected by the human body detection means 6ah. What is necessary is just to comprise so that water may not be supplied.
  • FIG. 16 is a schematic diagram showing the heating panels 6a, 6b, 6c installed in each room.
  • the room R 1 , the room R 2 , and the room R 3 are partitioned and become independent rooms, all of which can enter and exit from the corridor C.
  • the room R 1 is installed heating panel 6a is, in the room R 2 are installed heating panel 6b is, in the room R 3 heating panel 6c is installed.
  • the sixth embodiment can also be applied to such a circulation heating apparatus.
  • this Embodiment 6 is applied not only to the circulating heating apparatus in which a plurality of heating panels are installed in the same living room, but also to the circulating heating apparatus having a heating panel installed in a plurality of different living rooms. can do.
  • the room may be the living dining kitchen itself or may be a part of the living dining kitchen.
  • FIG. 13 is a flowchart showing the operation of the circulating heating apparatus 1 according to the seventh embodiment.
  • the operation of the circulating heating device 1 is different from that of the sixth embodiment.
  • the description common to the first, second, third, fourth, fifth and sixth embodiments is omitted, and the difference from the first, second, third, fourth, fifth and sixth embodiments is omitted. The explanation will be centered.
  • step S11 it is determined whether the defrosting operation has been started.
  • the operation in the present embodiment is not performed, and thus the control flow is ended (No in step S11).
  • the process proceeds to the next step (Yes in step S11).
  • step S12 the flow path switching valve provided on the upstream side of the heating panel where it is detected that there is no person is opened, and the flow path switching provided on the upstream side of the heating panel where it is detected that there is a person.
  • the valve is closed (step S12).
  • a person on the heating panel can be detected using a strain gauge, a thermopile, an air conditioner indoor unit equipped with a thermopile, or the return water temperature of each heating panel.
  • the steps up to step S12 are the same as in the sixth embodiment.
  • step S13 it is determined whether the water temperature (return water temperature) detected by the outlet water temperature sensor 32b provided on the outlet side of the water refrigerant heat exchanger 12 is equal to or higher than a predetermined water temperature. If this return water temperature is too low, there is a risk of freezing, so it is necessary to raise the return water temperature. When the return water temperature is lower than the predetermined water temperature (No in step S13), it is determined whether all the flow path switching valves are open (step S14).
  • the outlet water temperature sensor 32b is used as the circulating water temperature detecting means (circulating water temperature sensor) for determining the possibility of freezing.
  • step S15 If there is at least one channel switching valve that is not open (No in step S14), one of the channel switching valves is opened (step S15). Thus, when the return water temperature falls, freezing is suppressed by opening the flow path switching valve and circulating the hot water accumulated in the heating panels 6a, 6b, 6c. Thereafter, in step S13, the return water temperature is determined again. If all the flow path switching valves are open in step S14, the process proceeds to the next step (Yes in step S14). In step S13, if the return water temperature is equal to or higher than the predetermined water temperature, the process proceeds to the next step (Yes in step S13).
  • step S16 it is determined whether the defrosting is finished. If the defrosting has not ended, the process returns to step S3 (No in step S16). If the defrosting is finished, this control is finished (Yes in step S16).
  • the opening and closing of the flow path switching valve is controlled based on the return water temperature detected by the outlet water temperature sensor 32b.
  • the flow path switching valve is controlled based on the water temperature detected by the inlet water temperature sensor 32a. May be opened and closed.
  • a water temperature sensor other than the inlet water temperature sensor 32a and the outlet water temperature sensor can be installed in the water circuit 3, and the flow path switching valve can be opened and closed based on the water temperature detected by the water temperature sensor.
  • the human body detection means 6ah You may comprise so that water may be supplied also to the heating panel 6a by which it was detected that there was a person.
  • the seventh embodiment is different from the heating panel 6a detected by the human body detection unit 6ah and the heating panel 6b around the heating panel 6a detected by the human body detection unit 6ah.
  • the water of the other heating panel 6c that is, the heating panel 6c that is not adjacent to the heating panel 6a in which a person is present is used as a heat source for defrosting, and then the presence of a person is detected by the human body detection means 6ah.
  • the water of the heating panel 6b around the heating panel 6a that is, the water of the heating panel 6b adjacent to the heating panel 6a detected to have a person is used as a heat source for defrosting.
  • the human body detection means 6ah The water of the heating panel 6a detected as having a person may be used as a heat source for defrosting.
  • the human body detection means 6ah For example, using the third temperature determined in advance and the fourth temperature determined in advance lower than the third temperature, it is detected by the human body detection means 6ah during the defrosting operation. Water is supplied to the other heating panel 6c other than the heating panel 6b around the heating panel 6a detected by the heating panel 6a and the human body detection means 6ah, and the temperature of the water is the third temperature. When the temperature falls below the temperature, water is supplied to the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah, and the temperature of the water falls below the fourth temperature. In addition, it is possible to supply water to the heating panel 6a in which it is detected by the human body detection means 6ah that there is a person.
  • the seventh embodiment can achieve both human comfort and prevention of freezing of the heating panel.
  • Embodiment 8 FIG. Next, the circulation heating apparatus 1 according to Embodiment 8 will be described.
  • the refrigerant used for the refrigerant circuit 4 is not specified.
  • R32 is used as the refrigerant.
  • R32 makes the discharge temperature of the compressor 11 higher than R410A or the like. For this reason, since the refrigerant temperature on the inlet side of the water refrigerant heat exchanger 12 becomes high, the temperature of the water exchanged with the refrigerant on the outlet side of the water refrigerant heat exchanger 12 easily rises.
  • the heating panels 6a, 6b and 6c through which the water flows are also warmed, and the heating panels 6a, 6b and 6c
  • the comfort of the user is improved.
  • the discharge temperature of the compressor 11 is increased during defrosting, the temperature difference between the frosted heat exchanger and the refrigerant is increased, so that the defrosting efficiency is improved. For this reason, since defrosting is not performed more than necessary, it is possible to suppress a decrease in the water temperature of the heating panels 6a, 6b, 6c.
  • 1 circulation heating device 2 heating source, 3 water circuit, 4 refrigerant circuit, 5 pump, 6, 6a, 6b, 6c heating panel, 6ah, 6bh, 6ch human body detection means, 7a, 7b, 7c flow path switching valve, 11 compressor, 12 water refrigerant heat exchanger (first heat exchanger), 13 expansion valve, 14 air refrigerant heat exchanger (second heat exchanger), 15 fan, 21 control means, 31 tank, 32a inlet water temperature sensor 32b, outlet water temperature sensor, 33 discharge temperature sensor, 34 bypass circuit, 34a bypass piping, 34b bypass flow control valve, 35 accumulator, 36 four-way valve, C corridor, R1, R2, R3 rooms, L living, DK dining kitchen, D Dining, K kitchen.

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  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

To provide a circulation and heating apparatus that rapidly warms a heating panel where a person is present, while preserving comfort as much as possible even if the person moves to another heating panel. The circulation and heating apparatus (1) comprises a pump (5) that circulates water, a heat source (2) that heats water to be fed by the pump (5), a plurality of heating panels (6) through which water that has been heated by the heat source (2) is circulated, and a human body detection means that detects whether or not a person is present on the plurality of heating panels (6). Water is supplied to either a heating panel (6) where the presence of a person has been detected by the human body detection means, or to the other heating panels (6) other than the heating panel (6) where the presence of a person has been detected by the human body detection means. The amount of water supplied to the heating panel (6) where the presence of a person has been detected by the human body detection means is greater than the amount of water supplied to the other heating panels (6) other than the heating panel (6) where the presence of a person has been detected by the human body detection means.

Description

循環加温装置Circulation heating device
　本発明は、加熱源を備える循環加温装置に関する。 The present invention relates to a circulating heating apparatus provided with a heating source.
　床暖房等の循環加温装置は、例えば冷凍サイクル等の加熱源によって水が加熱され、この加熱された水が、床下に設置された暖房パネルに供給されて床を暖めるものである。このような床暖房として、特許文献１には、「冷媒を圧縮する圧縮機，冷媒及び被加熱流体の間で熱交換を行う流体熱交換器，冷媒を膨張させる膨張機構，冷媒及び空気の間で熱交換を行う空気熱交換器を有するヒートポンプサイクルと，前記流体熱交換器と一又は複数の床暖房装置との間に被加熱流体を循環させる一又は複数の床暖房回路と，前記ヒートポンプサイクルにおける冷媒の循環方向を切り換えることにより，前記流体熱交換器において被加熱流体を加熱する加熱運転及び前記空気熱交換器の霜を取り除く除霜運転のいずれかを実行させる運転制御手段と，前記床暖房回路における被加熱流体の循環量を切り換えることにより該床暖房回路に循環される温水の温度を調整する温水温度調整手段と，を備えてなるヒートポンプ式床暖房機」が開示されている。 In a circulating heating device such as floor heating, water is heated by a heating source such as a refrigeration cycle, for example, and the heated water is supplied to a heating panel installed under the floor to warm the floor. As such floor heating, Patent Document 1 discloses that “a compressor that compresses refrigerant, a fluid heat exchanger that exchanges heat between the refrigerant and the fluid to be heated, an expansion mechanism that expands the refrigerant, and between the refrigerant and air. A heat pump cycle having an air heat exchanger that performs heat exchange at the same; one or more floor heating circuits that circulate a heated fluid between the fluid heat exchanger and one or more floor heating devices; and the heat pump cycle. An operation control means for executing one of a heating operation for heating the fluid to be heated in the fluid heat exchanger and a defrosting operation for removing frost from the air heat exchanger by switching the circulation direction of the refrigerant in the fluid heat exchanger; And a hot water temperature adjusting means for adjusting the temperature of the hot water circulated in the floor heating circuit by switching the circulation amount of the heated fluid in the heating circuit. Tuft machine "is disclosed.
　また、特許文献２には、「熱媒加熱熱交換器は、水熱交換器（２１）であり、ポンプ（７）と床暖房機器（３）とを配管で接続することにより水循環経路（１）を構成し、上記ポンプ（７）を駆動することによって、加熱源である水熱交換器（２１）により加熱された温水を上記水循環経路（１）内に循環供給するようにした」ヒートポンプ式空気調和機が開示されている。 Patent Document 2 states that “the heat medium heating heat exchanger is a water heat exchanger (21), and a water circulation path (1) is obtained by connecting the pump (7) and the floor heating device (3) with piping. ) And the pump (7) is driven to circulate and supply hot water heated by the water heat exchanger (21) as a heating source into the water circulation path (1). An air conditioner is disclosed.
　更に、特許文献３には、「冷媒主回路中の可逆形膨張弁の前後の冷媒主回路導管に夫々１端が接続され且つ他端が相互に接続された２本のキャピラリ管と、該２本のキャピラリ管の相互接続部から電磁弁を介して圧縮機の吸込部または圧縮過程部に至るバイパス管とからなる圧縮機液インジェクション用バイパス回路を備えた」空冷ヒートポンプ式冷凍サイクルが開示されている。 Further, Patent Document 3 states that “two capillary tubes having one end connected to the refrigerant main circuit conduit before and after the reversible expansion valve in the refrigerant main circuit and the other ends connected to each other, An air-cooled heat pump refrigeration cycle having a bypass circuit for compressor liquid injection comprising a bypass pipe extending from an interconnected part of a capillary tube to a compressor suction part or a compression process part via a solenoid valve is disclosed. Yes.
　更にまた、特許文献４には、「室内機の室内熱交換器と、室外機の室外熱交換器の間で冷媒を循環させると共に、前記室内熱交換器から電動膨張弁を通って前記室外熱交換器に向かう冷媒の一部をバイパスラインを通って圧縮機に吸入可能に構成した空気調和機において、前記圧縮機の吐出冷媒温度を検知する吐出温度検知手段と、前記凝縮器の冷媒飽和温度を検知する凝縮温度検知手段と、前記凝縮温度検知手段の検知温度が目標凝縮温度になるように前記電動膨張弁の開度を制御する凝縮温度制御手段と、前記吐出温度検知手段の検知温度が目標吐出温度になるように前記バイパスラインの開閉弁を開閉制御する吐出温度制御手段と、前記目標吐出温度を前記電動膨張弁の操作量に応じて補正する目標吐出温度補正手段と、を備える」空気調和機が開示されている。 Furthermore, Patent Document 4 states that “the refrigerant is circulated between the indoor heat exchanger of the indoor unit and the outdoor heat exchanger of the outdoor unit, and the outdoor heat is passed from the indoor heat exchanger through the electric expansion valve. In the air conditioner configured to be able to suck a part of the refrigerant going to the exchanger through the bypass line into the compressor, a discharge temperature detecting means for detecting a refrigerant temperature discharged from the compressor, and a refrigerant saturation temperature of the condenser A condensing temperature detecting means for detecting the condensing temperature detecting means, a condensing temperature controlling means for controlling the opening degree of the electric expansion valve so that the detected temperature of the condensing temperature detecting means becomes a target condensing temperature, Discharging temperature control means for controlling opening and closing of the on-off valve of the bypass line so as to reach the target discharge temperature, and target discharge temperature correction means for correcting the target discharge temperature according to the operation amount of the electric expansion valve. Air-conditioner is disclosed.
　そして、特許文献５には、「冷媒を超臨界圧力まで圧縮する圧縮機、該圧縮機から吐出した冷媒と負荷側媒体とを熱交換する単一の放熱器、冷媒を減圧する膨張弁、および蒸発器を環状に接続して、冷媒が循環する冷凍サイクルと、前記単一の放熱器を流通する冷媒により加熱された負荷側媒体をタンクに貯留する給湯回路と、高圧側冷媒圧力を所定の圧力に制御する高圧制御手段と、を備え」、「前記高圧制御手段は、前記放熱器と前記膨張弁の間から分岐して前記圧縮機の吸入側へ接続されたバイパス流路に設けたバイパス用膨張弁と、前記バイパス流路の前記バイパス用膨張弁の下流側に配置されて低圧である該バイパス流路の冷媒とメイン流路の高圧側冷媒との間で熱交換する第１の高低圧熱交換器と、から構成されてなる」ヒートポンプ給湯機が開示されている。 Patent Document 5 states that “a compressor that compresses refrigerant to a supercritical pressure, a single radiator that exchanges heat between the refrigerant discharged from the compressor and the load-side medium, an expansion valve that decompresses the refrigerant, and An evaporator is connected annularly, a refrigeration cycle in which the refrigerant circulates, a hot water supply circuit that stores a load-side medium heated by the refrigerant flowing through the single radiator in a tank, and a high-pressure side refrigerant pressure is set to a predetermined value. High-pressure control means for controlling to a pressure ”,“ the high-pressure control means is a bypass provided in a bypass passage branched from between the radiator and the expansion valve and connected to the suction side of the compressor ” The first expansion valve is disposed on the downstream side of the bypass expansion valve in the bypass flow path and exchanges heat between the low-pressure refrigerant in the bypass flow path and the high-pressure refrigerant in the main flow path. A low-pressure heat exchanger, Pump water heater is disclosed.
　また、特許文献６には、「圧縮機、熱源側熱交換器、絞り機構、中間熱交換器を順次配管接続した１次側冷媒回路と、前記中間熱交換器に連結され、床暖房パネル、流体ポンプを順次配管接続した２次側冷媒回路と、前記床暖房パネルに設けられた前記床暖房パネル上の生体反応を検出する人感検出手段と、前記人感検出手段からの情報に基づいて前記床暖房パネル内の電磁弁の開閉を制御する制御手段と、前記制御手段が前記電磁弁の開閉を行うことによって、前記中間熱交換器において熱交換された伝熱媒体の前記床暖房パネルに対する供給を制御する」空気調和機が開示されており、この特許文献６には、「前記人感検出手段は、圧力検出手段である」こと、及び「前記人感検出手段は、温度検出手段である」ことが開示されている。 In addition, Patent Document 6 includes a “primary refrigerant circuit in which a compressor, a heat source side heat exchanger, a throttling mechanism, and an intermediate heat exchanger are sequentially piped, and a floor heating panel connected to the intermediate heat exchanger, Based on the information from the secondary-side refrigerant circuit in which the fluid pumps are sequentially connected to the pipe, the human-sensing detection means for detecting a biological reaction on the floor-heating panel provided in the floor-heating panel, and the human-sensing detection means Control means for controlling opening and closing of the electromagnetic valve in the floor heating panel, and the control means for opening and closing the electromagnetic valve, the heat transfer medium heat exchanged in the intermediate heat exchanger to the floor heating panel An air conditioner that controls the supply is disclosed. Patent Document 6 discloses that the human detection means is a pressure detection means, and that the human detection means is a temperature detection means. Is disclosed "
　更に、特許文献７には、「密閉容器内が吐出圧雰囲気の圧縮機と、凝縮器と、気液分離器と、膨張弁と、蒸発器とを有し、冷媒にＲ３２もしくはＲ３２冷媒を少なくとも６０％質量以上含む混合冷媒を用いた冷凍装置であって、前記気液分離器出口から前記冷媒の一部を気液二相の飽和冷媒であるフラッシュガスとして前記圧縮機に注入するインジェクション回路を備えた」冷凍装置が開示されている。 Further, Patent Document 7 states that “the airtight container has a compressor having a discharge pressure atmosphere, a condenser, a gas-liquid separator, an expansion valve, and an evaporator, and at least R32 or R32 refrigerant is used as the refrigerant. A refrigeration apparatus using a mixed refrigerant containing 60% by mass or more, wherein an injection circuit that injects a part of the refrigerant from the gas-liquid separator outlet into the compressor as flash gas that is a gas-liquid two-phase saturated refrigerant A "with" refrigeration apparatus is disclosed.
　更にまた、特許文献８には、「圧縮機と利用側熱交換器と膨張弁と熱源側熱交換器とを有する冷媒回路と、凝縮圧力検出手段と、制御手段とを備えたヒートポンプサイクル装置であって、前記制御手段は、前記利用側熱交換器における、複数の凝縮圧力の値に対応させて前記圧縮機の回転数の上昇速度を記憶した圧縮機回転数の上昇速度テーブルを有し、前記制御手段は、前記凝縮圧力を前記凝縮圧力検出手段により検出し、前記圧縮機回転数の上昇速度テーブルを参照し、前記凝縮圧力に基づいて検出した前記圧縮機の回転数の上昇速度で、除霜運転終了後の前記圧縮機の回転数を目標回転数まで上昇させる」ヒートポンプサイクル装置が開示されている。 Furthermore, Patent Document 8 discloses that “a heat pump cycle apparatus including a refrigerant circuit having a compressor, a use side heat exchanger, an expansion valve, and a heat source side heat exchanger, a condensation pressure detection unit, and a control unit. The control means has a compressor rotation speed increase speed table that stores the increase speed of the compressor rotation speed corresponding to a plurality of condensing pressure values in the use side heat exchanger, The control means detects the condensing pressure by the condensing pressure detecting means, refers to the compressor speed increasing speed table, and detects the compressor speed increasing speed detected based on the condensing pressure, A heat pump cycle device is disclosed in which the rotational speed of the compressor after the defrosting operation is increased to a target rotational speed.
特開２００９－２５０５７７号公報（請求項１）JP 2009-250577 A (Claim 1) 特開２００６－４６６９２号公報（請求項４）JP 2006-46692 A (Claim 4) 特開平４－１６１７６０号公報（請求項１）JP-A-4-161760 (Claim 1) 特開２００８－１５７５５０号公報（請求項１）JP 2008-157550 A (Claim 1) 特開２００５－３１５５５８号公報（請求項１，請求項７）JP-A-2005-315558 (Claims 1 and 7) 特開２０１０－７８１８１号公報（請求項１，請求項３，請求項４）JP 2010-78181 A (Claim 1, Claim 3, Claim 4) 特開２００９－１２７９０２号公報（請求項１）JP 2009-127902 A (Claim 1) 特開２０１２－７８５１号公報（請求項１）JP 2012-7851 A (Claim 1)
　しかしながら、従来の循環加温装置において、循環加温装置の電源を投入した直後は、循環加温装置内を循環する水が冷たいため、暖房パネルも冷たい。このため、暖房パネルが設置された居宅の居住者等に不快感が生じる。また、加熱源として、冷凍サイクルにおける室内熱交換器を使用する場合、室外熱交換器に霜が付着すると、循環加温装置の暖房能力が低下するため、霜を除去する必要がある。そこで、冷媒の循環方向を暖房運転時の循環方向と逆向きにして、除霜運転を行うことによって、室外熱交換器に加熱された冷媒を流通して、除霜する。しかし、この場合、循環加温装置内を循環する水は、暖房運転時とは反対に冷却される。従って、除霜運転の終了直後に暖房運転を行うと、循環加温装置の電源投入直後と同様に、循環加温装置内を循環する水が冷たく、暖房パネルも冷たいため、その床の冷たさによって、居住者等に不快感が生じる。 However, in the conventional circulation heating apparatus, immediately after the circulation heating apparatus is turned on, the water circulating in the circulation heating apparatus is cold, so the heating panel is also cold. For this reason, discomfort arises in the resident etc. of the home in which the heating panel was installed. Moreover, when using the indoor heat exchanger in a refrigerating cycle as a heat source, if frost adheres to an outdoor heat exchanger, since the heating capability of a circulating heating apparatus will fall, it is necessary to remove frost. Therefore, by performing the defrosting operation with the refrigerant circulation direction opposite to the circulation direction during the heating operation, the heated refrigerant is circulated through the outdoor heat exchanger to defrost. However, in this case, the water circulating in the circulation heating device is cooled in the opposite direction to that in the heating operation. Therefore, when the heating operation is performed immediately after the end of the defrosting operation, the water circulating in the circulation heating device is cold and the heating panel is also cold, just like when the circulation heating device is turned on. This causes discomfort to residents and the like.
　また、特許文献１及び特許文献２に開示された従来技術は、ヒートポンプ回路と温水式床暖房パネルとを備えるものであるが、これらの特許文献１及び特許文献２は、いずれも、電源投入直後及び除霜運転終了直後において、循環する水が冷たい。このため、居住者等に不快感を与える。そして、特許文献３～特許文献５に開示された従来技術は、冷凍サイクルにバイパス回路を設けて、このバイパル回路から圧縮機に液インジェクションを行うことによって、圧縮機の吐出温度を制御するものであるが、これらの特許文献３～特許文献５も、電源投入直後及び除霜運転終了直後は、循環する水が冷たいため、居住者等は不快に感じる。 Moreover, although the prior art disclosed by patent document 1 and patent document 2 is provided with a heat pump circuit and a hot water type floor heating panel, both of these patent documents 1 and patent documents 2 are immediately after power activation. And immediately after the end of the defrosting operation, the circulating water is cold. For this reason, an unpleasant feeling is given to a resident etc. The prior art disclosed in Patent Documents 3 to 5 controls the discharge temperature of the compressor by providing a bypass circuit in the refrigeration cycle and performing liquid injection from the bipal circuit to the compressor. However, these Patent Documents 3 to 5 are also uncomfortable for residents because the circulating water is cold immediately after the power is turned on and immediately after the completion of the defrosting operation.
　更に、特許文献６に開示された従来技術は、感圧センサー又は温度センサー等を用いて床暖房パネル上の人体の検出を行い、人がいる床暖房パネルのみに、温水を供給するものである。しかし、この特許文献６は、人がいる床暖房パネルのみに、温水が供給されているため、床暖房パネル上にいる人が、温水が供給されていない周囲の床暖房パネルに移動する際、床温が低いため、人に不快感を与えてしまう。 Furthermore, the prior art disclosed in Patent Document 6 detects a human body on a floor heating panel using a pressure-sensitive sensor or a temperature sensor, and supplies hot water only to the floor heating panel where a person is present. . However, since this patent document 6 is supplied with hot water only to the floor heating panel where there is a person, when a person on the floor heating panel moves to a surrounding floor heating panel where hot water is not supplied, Because the floor temperature is low, it causes discomfort to the person.
　また、特許文献７に開示された従来技術は、冷凍サイクルの冷媒として、Ｒ３２を用いており、また、冷凍サイクルに、インジェクション回路を設けて、このインジェクション回路から圧縮機に冷媒を注入することによって、圧縮機の吐出温度制御を行っているものであるが、この特許文献７も、電源投入直後及び除霜運転終了直後は、循環する水が冷たいため、居住者等は不快感を覚える。 The prior art disclosed in Patent Document 7 uses R32 as a refrigerant for the refrigeration cycle. Also, an injection circuit is provided in the refrigeration cycle, and the refrigerant is injected into the compressor from the injection circuit. Although the discharge temperature control of the compressor is performed, this Patent Document 7 also feels uncomfortable for residents because the circulating water is cold immediately after turning on the power and immediately after the defrosting operation.
　更に、特許文献８に開示された従来技術は、凝縮圧力に基づいて、圧縮機の回転数（周波数）の増加速度を演算して、圧縮機吐出圧力がオーバーシュートすることを抑制しようとするものであるが、冷凍サイクルの能力がある程度上昇するまでは、暖房パネル等の室内ユニットに冷水が供給されるため、居住者等に不快感を与える。 Furthermore, the prior art disclosed in Patent Document 8 calculates an increase speed of the rotation speed (frequency) of the compressor based on the condensation pressure, and attempts to suppress the compressor discharge pressure from overshooting. However, until the capacity of the refrigeration cycle is increased to some extent, cold water is supplied to indoor units such as a heating panel, which causes discomfort to residents and the like.
　本発明は、上記のような課題を背景としてなされたもので、人がいる暖房パネルを早急に暖めつつ、人が、そのほかの暖房パネルに移動しても、できるだけ快適性を損なわない循環加温装置を提供するものである。 The present invention has been made against the background of the above-described problems. While heating a person's heating panel as quickly as possible, even if a person moves to another heating panel, the circulation heating does not impair the comfort as much as possible. A device is provided.
　本発明に係る循環加温装置は、水を循環させるポンプと、ポンプによって送水される水を加熱する加熱源と、加熱源で加熱された水が流通する複数の暖房パネルと、複数の暖房パネル上の人の有無を検知する人体検知手段と、を有し、水は、人体検知手段で人がいることが検知された暖房パネルと、人体検知手段で人がいることが検知された暖房パネル以外の、他の暖房パネルとのいずれにも供給されており、人体検知手段で人がいることが検知された暖房パネルに供給される水の量は、人体検知手段で人がいることが検知された暖房パネル以外の、他の暖房パネルに供給される水の量よりも多い。 The circulation heating device according to the present invention includes a pump for circulating water, a heating source for heating water fed by the pump, a plurality of heating panels through which water heated by the heating source circulates, and a plurality of heating panels A human body detecting means for detecting the presence or absence of an upper person, and a water heating panel in which water is detected by the human body detecting means, and a heating panel in which human being is detected by the human body detecting means The amount of water supplied to the heating panel that is supplied to any of the other heating panels and is detected by the human body detection means is detected by the human body detection means. More than the amount of water supplied to other heating panels other than the heated heating panel.
　本発明によれば、人がいる暖房パネルに供給される水の量が、その暖房パネルの周囲の暖房パネルに供給される水の量よりも多いため、人がいる暖房パネルを優先的に暖めつつ、その周囲の暖房パネルも暖めている。このため、暖房パネル上にいる人が、その周囲の暖房パネルに移動しても、周囲の暖房パネルも暖かいため、移動した人に不快感を与えることを抑制することができる。 According to the present invention, since the amount of water supplied to the heating panel where the person is present is larger than the amount of water supplied to the heating panel around the heating panel, the heating panel where the person is present is preferentially warmed. However, the surrounding heating panel is also warmed. For this reason, even if the person on a heating panel moves to the surrounding heating panel, since the surrounding heating panel is also warm, it can suppress giving a discomfort to the moved person.
実施の形態１に係る循環加温装置１を示す回路図である。1 is a circuit diagram showing a circulation heating device 1 according to Embodiment 1. FIG. 実施の形態１に係る循環加温装置１の動作を示すフローチャートである。3 is a flowchart showing the operation of the circulating heating apparatus 1 according to the first embodiment. 実施の形態１における水流量を示すグラフ図である。FIG. 3 is a graph showing the water flow rate in the first embodiment. 実施の形態１の変形例に係る循環加温装置１を示す回路図である。FIG. 6 is a circuit diagram showing a circulation heating device 1 according to a modification of the first embodiment. 実施の形態２に係る循環加温装置１を示す回路図である。FIG. 5 is a circuit diagram showing a circulating heating apparatus 1 according to a second embodiment. 実施の形態２に係る循環加温装置１の動作を示すフローチャートである。6 is a flowchart showing the operation of the circulating heating apparatus 1 according to the second embodiment. 実施の形態２における水流量を示すグラフ図である。FIG. 6 is a graph showing the water flow rate in the second embodiment. 実施の形態３に係る循環加温装置１を示す回路図である。FIG. 5 is a circuit diagram showing a circulating heating apparatus 1 according to a third embodiment. 実施の形態３における吐出温度目標値を示すグラフ図である。FIG. 9 is a graph showing a discharge temperature target value in the third embodiment. 実施の形態４に係る循環加温装置１を示す回路図である。FIG. 6 is a circuit diagram showing a circulating heating apparatus 1 according to a fourth embodiment. 実施の形態５に係る循環加温装置１を示す回路図である。FIG. 10 is a circuit diagram showing a circulating heating apparatus 1 according to a fifth embodiment. 実施の形態６に係る循環加温装置１を示す回路図である。FIG. 10 is a circuit diagram showing a circulating heating apparatus 1 according to a sixth embodiment. 実施の形態７に係る循環加温装置１の動作を示すフローチャートである。18 is a flowchart showing the operation of the circulating heating apparatus 1 according to the seventh embodiment. 居室に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。It is a schematic diagram which shows heating panel 6a, 6b, 6c installed in the living room. 居室に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。It is a schematic diagram which shows heating panel 6a, 6b, 6c installed in the living room. 各部屋に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。It is a schematic diagram which shows the heating panels 6a, 6b, 6c installed in each room.
　以下、本発明に係る循環加温装置の実施の形態について、図面を参照しながら説明する。なお、以下に説明する実施の形態によって本発明が限定されるものではない。また、図１を含め、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。 Hereinafter, embodiments of a circulating heating apparatus according to the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, in the following drawings including FIG. 1, the relationship of the size of each component may be different from the actual one.
実施の形態１．
　図１は、実施の形態１に係る循環加温装置１を示す回路図である。この図１に基づいて、循環加温装置１について説明する。図１に示すように、循環加温装置１は、水を循環させるポンプ５と、このポンプ５から流通する水を加熱する加熱源２として作用する第１熱交換器１２と、３個の暖房パネル６ａ，６ｂ，６ｃと、３個の人体検知手段６ａｈ，６ｂｈ，６ｃｈとを備える。これらを配管によって環状に接続することにより、水回路３を構成している。また、各暖房パネル６ａ，６ｂ，６ｃの上流側には、夫々流路切替弁７ａ，７ｂ，７ｃが設けられており、この流路切替弁７ａ，７ｂ，７ｃの開度を調節することにより、各暖房パネル６ａ，６ｂ，６ｃに流通する水の量を調整することができる。 Embodiment 1 FIG.
FIG. 1 is a circuit diagram showing a circulating heating apparatus 1 according to the first embodiment. Based on this FIG. 1, the circulation heating apparatus 1 is demonstrated. As shown in FIG. 1, the circulation heating device 1 includes a pump 5 that circulates water, a first heat exchanger 12 that acts as a heating source 2 that heats water flowing from the pump 5, and three heating units. Panels 6a, 6b, 6c and three human body detection means 6ah, 6bh, 6ch are provided. The water circuit 3 is comprised by connecting these cyclically | annularly by piping. Further, on the upstream side of each heating panel 6a, 6b, 6c, flow path switching valves 7a, 7b, 7c are provided, respectively, and by adjusting the opening degree of the flow path switching valves 7a, 7b, 7c, respectively. The amount of water flowing through each heating panel 6a, 6b, 6c can be adjusted.
　なお、本実施の形態においては、暖房パネル及び人体検知手段を３個としたが、これらは、複数であればよい。例えば、暖房パネル及び人体検知手段を２個とすることもでき、また、４個以上とすることもできる。また、図４は、実施の形態１の変形例に係る循環加温装置１を示す回路図であるが、この図４に示すように、本発明は、水回路３にタンク３１を設けることもできる。この場合、第１熱交換器１２で加熱された水を、一旦このタンク３１に貯留し、必要なときに、このタンク３１から取り出したりすることができる。 In addition, in this Embodiment, although the heating panel and the human body detection means were three pieces, these should just be plural. For example, the number of heating panels and human body detection means can be two, or four or more. FIG. 4 is a circuit diagram showing the circulation heating apparatus 1 according to a modification of the first embodiment. As shown in FIG. 4, the present invention may also be provided with a tank 31 in the water circuit 3. it can. In this case, the water heated by the first heat exchanger 12 can be temporarily stored in the tank 31 and taken out from the tank 31 when necessary.
　暖房パネル６ａ，６ｂ，６ｃは、第１熱交換器１２で加熱された水を流通することによって、加熱され、例えば、暖房パネル６ａ，６ｂ，６ｃが設置された床を暖める。また、人体検知手段６ａｈ，６ｂｈ，６ｃｈは、この暖房パネル６ａ，６ｂ，６ｃ上の人の有無を検知するものであり、例えば、サーモパイルを用いてもよいし、ひずみゲージを用いてもよい。また、この人体検知手段６ａｈ，６ｂｈ，６ｃｈとして、各暖房パネル６ａ，６ｂ，６ｃの出口側に、暖房パネル出口水温センサーを取り付け、この暖房パネル出口水温センサーによって検知された水温に基づいて行ってもよい。なお、サーモパイルを、そのほかの機器、例えばエアコンの室内機等に取り付け、循環加温装置１と連携させて、暖房パネル６ａ，６ｂ，６ｃ上の人を検知してもよい。更に、これらの人体検知手段６ａｈ，６ｂｈ，６ｃｈを組み合わせることによって、人の検知を行うこともできる。 The heating panels 6a, 6b, 6c are heated by circulating the water heated by the first heat exchanger 12, and for example, warm the floor on which the heating panels 6a, 6b, 6c are installed. Moreover, the human body detection means 6ah, 6bh, 6ch detects the presence or absence of a person on the heating panels 6a, 6b, 6c. For example, a thermopile or a strain gauge may be used. Further, as the human body detecting means 6ah, 6bh, 6ch, a heating panel outlet water temperature sensor is attached to the outlet side of each heating panel 6a, 6b, 6c, and the detection is performed based on the water temperature detected by the heating panel outlet water temperature sensor. Also good. In addition, you may attach a thermopile to other apparatuses, for example, the indoor unit of an air-conditioner, etc., and may detect the person on heating panel 6a, 6b, 6c in cooperation with the circulation heating apparatus 1. FIG. Furthermore, a person can be detected by combining these human body detection means 6ah, 6bh, and 6ch.
　次に、加熱源２である第１熱交換器１２を備える冷媒回路４について説明する。冷媒回路４は、圧縮機１１と、第１熱交換器（以下、水冷媒熱交換器）１２と、膨張手段である膨張弁１３と、第２熱交換器（以下、空気冷媒熱交換器）１４と、ファン１５とを備えており、これらが配管によって環状に順次接続されている。冷媒としては、例えば、Ｒ４１０Ａを使用することができる。圧縮機１１から吐出された高温高圧の冷媒は、凝縮器として作用する水冷媒熱交換器１２に流通し、この水冷媒熱交換器１２によって、水回路３内を流通する水と熱交換して凝縮され、低温高圧の冷媒となる。そして、低温高圧の冷媒は、膨張弁１３によって、減圧され、低温低圧の冷媒となる。この低温低圧の冷媒は、空気冷媒熱交換器１４に流通し、蒸発器として作用する空気冷媒熱交換器１４によって、ファン１５から取り込まれた空気と熱交換して蒸発され、高温低圧の冷媒となる。そして、この高温低圧の冷媒が、圧縮機１１に流通する。このように、本実施の形態では、加熱源２として、冷凍サイクルにおける第１熱交換器１２を用いているが、これに限らず、例えば、ガス等を用いた給湯器を使用してもよい。 Next, the refrigerant circuit 4 including the first heat exchanger 12 that is the heating source 2 will be described. The refrigerant circuit 4 includes a compressor 11, a first heat exchanger (hereinafter referred to as a water refrigerant heat exchanger) 12, an expansion valve 13 that is an expansion means, and a second heat exchanger (hereinafter referred to as an air refrigerant heat exchanger). 14 and a fan 15, which are sequentially connected in an annular fashion by piping. For example, R410A can be used as the refrigerant. The high-temperature and high-pressure refrigerant discharged from the compressor 11 circulates in the water refrigerant heat exchanger 12 acting as a condenser, and exchanges heat with water flowing in the water circuit 3 by the water refrigerant heat exchanger 12. It is condensed and becomes a low-temperature and high-pressure refrigerant. The low-temperature and high-pressure refrigerant is decompressed by the expansion valve 13 and becomes a low-temperature and low-pressure refrigerant. This low-temperature and low-pressure refrigerant flows through the air refrigerant heat exchanger 14 and is evaporated by exchanging heat with the air taken in from the fan 15 by the air-refrigerant heat exchanger 14 acting as an evaporator. Become. Then, the high-temperature and low-pressure refrigerant flows through the compressor 11. As described above, in the present embodiment, the first heat exchanger 12 in the refrigeration cycle is used as the heating source 2, but the present invention is not limited thereto, and for example, a water heater using gas or the like may be used. .
　次に、制御手段２１について説明する。本実施の形態に係る循環加温装置１には、制御手段２１が設けられており、この制御手段２１によって、圧縮機１１の周波数、膨張弁１３の開度及びポンプ５の送水量等を制御している。 Next, the control means 21 will be described. The circulating heating apparatus 1 according to the present embodiment is provided with a control means 21, and the control means 21 controls the frequency of the compressor 11, the opening degree of the expansion valve 13, the amount of water supplied by the pump 5, and the like. is doing.
　次に、除霜運転について説明する。空気冷媒熱交換器１４に霜が付着すると、循環加温装置１の暖房能力が低下するため、この空気冷媒熱交換器１４に付着した霜を除去する必要がある。冷媒回路４において、圧縮機１１、水冷媒熱交換器１２、膨張弁１３、空気冷媒熱交換器１４の順に、冷媒が流通することにより、水冷媒熱交換器１２によって、水回路３において、水が加熱され、暖房パネル６ａ，６ｂ，６ｃを暖める。この暖房運転時に、空気冷媒熱交換器１４は冷却されるため、この空気冷媒熱交換器１４に霜が付着する場合がある。 Next, the defrosting operation will be described. If frost adheres to the air refrigerant heat exchanger 14, the heating capacity of the circulating heating device 1 is reduced, so that it is necessary to remove the frost adhering to the air refrigerant heat exchanger 14. In the refrigerant circuit 4, when the refrigerant flows in the order of the compressor 11, the water refrigerant heat exchanger 12, the expansion valve 13, and the air refrigerant heat exchanger 14, the water refrigerant heat exchanger 12 causes the water circuit 3 to Is heated to warm the heating panels 6a, 6b, 6c. Since the air refrigerant heat exchanger 14 is cooled during the heating operation, frost may adhere to the air refrigerant heat exchanger 14.
　この空気冷媒熱交換器１４に付着した霜を除去するため、除霜運転を行う。除霜運転は、冷媒回路４に四方弁を設けることにより、実現することができ、この場合、冷媒回路４における冷媒の流通方向を、四方弁を切り替えて、暖房運転とは逆にする。即ち、圧縮機１１から吐出された高温高圧の冷媒は、凝縮器として作用する空気冷媒熱交換器１４に流通し、空気冷媒熱交換器１４によって、空気と熱交換して凝縮され、低温高圧の冷媒となる。この低温高圧の冷媒は、膨張弁１３によって、減圧され、低温低圧の冷媒となり、この低温低圧の冷媒は、その後、蒸発器として作用する水冷媒熱交換器１２に流通する。この水冷媒熱交換器１２によって、低温低圧の冷媒と、水回路３内を流通する水との間で熱交換して蒸発される。これにより、高温低圧の冷媒となり、この高温低圧の冷媒は、圧縮機１１に流通する。 Defrosting operation is performed in order to remove frost adhering to the air refrigerant heat exchanger 14. The defrosting operation can be realized by providing the refrigerant circuit 4 with a four-way valve. In this case, the refrigerant flow direction in the refrigerant circuit 4 is switched to the four-way valve to reverse the heating operation. That is, the high-temperature and high-pressure refrigerant discharged from the compressor 11 flows to the air refrigerant heat exchanger 14 acting as a condenser, and is condensed by exchanging heat with air by the air refrigerant heat exchanger 14. Becomes a refrigerant. This low-temperature and high-pressure refrigerant is decompressed by the expansion valve 13 to become a low-temperature and low-pressure refrigerant, and this low-temperature and low-pressure refrigerant then circulates in the water refrigerant heat exchanger 12 acting as an evaporator. The water refrigerant heat exchanger 12 evaporates by exchanging heat between the low-temperature and low-pressure refrigerant and the water flowing in the water circuit 3. As a result, the refrigerant becomes a high-temperature and low-pressure refrigerant, and this high-temperature and low-pressure refrigerant flows to the compressor 11.
　このように、除霜運転においては、空気冷媒熱交換器１４に、高温の冷媒を流通することにより、霜を溶かして除去する。また、この除霜運転では、水冷媒熱交換器１２が蒸発器として作用するため、水回路３を流通する水が冷却される。これにより、暖房運転とは逆に、暖房パネル６ａ，６ｂ，６ｃは冷却される。なお、この除霜運転のほかに、霜を除去する方法として、空気冷媒熱交換器１４に電気ヒータ等を設け、且つ冷媒の循環を停止することにより、空気冷媒熱交換器１４を加熱して除霜するヒータ加熱方式を採用してもよい。また、圧縮機１１の吐出側、及び空気冷媒熱交換器１４と膨張弁１３との間を、配管でバイパスし、圧縮機１１から吐出された高温高圧の冷媒を、空気冷媒熱交換器１４に流して除霜するホットガスバイパス方式を採用することもできる。 Thus, in the defrosting operation, the frost is melted and removed by circulating a high-temperature refrigerant through the air refrigerant heat exchanger 14. In this defrosting operation, the water / refrigerant heat exchanger 12 acts as an evaporator, so that water flowing through the water circuit 3 is cooled. Thereby, contrary to heating operation, heating panel 6a, 6b, 6c is cooled. In addition to this defrosting operation, as a method of removing frost, the air refrigerant heat exchanger 14 is heated by providing an electric heater or the like in the air refrigerant heat exchanger 14 and stopping the circulation of the refrigerant. You may employ | adopt the heater heating system which defrosts. Also, the discharge side of the compressor 11 and between the air refrigerant heat exchanger 14 and the expansion valve 13 are bypassed by piping, and the high-temperature and high-pressure refrigerant discharged from the compressor 11 is passed to the air refrigerant heat exchanger 14. It is also possible to adopt a hot gas bypass system that defrosts by flowing.
　次に、本実施の形態に係る循環加温装置１の動作について説明する。図２は、実施の形態１に係る循環加温装置１の動作を示すフローチャート、図３は、実施の形態１における水流量を示すグラフ図である。図２に示すように、先ず、循環加温装置１の電源がＯＮであるか、又は除霜終了後であるかを判定する（ステップＳ１）。循環加温装置１の電源がＯＦＦであるか、又は除霜終了後でない場合は、本実施の形態における動作を行わないため、制御フローを終了する（ステップＳ１のＮｏ）。これに対し、循環加温装置１の電源がＯＮであるか、又は除霜終了後である場合は、次のステップに進む（ステップＳ１のＹｅｓ）。 Next, the operation of the circulating heating apparatus 1 according to this embodiment will be described. FIG. 2 is a flowchart showing the operation of the circulating heating apparatus 1 according to the first embodiment, and FIG. 3 is a graph showing the water flow rate in the first embodiment. As shown in FIG. 2, first, it is determined whether the power supply of the circulating heating device 1 is ON or after the defrosting is completed (step S1). If the power supply to the circulating warming device 1 is OFF or not after defrosting, the operation in the present embodiment is not performed, so the control flow ends (No in step S1). On the other hand, when the power supply of the circulation heating apparatus 1 is ON or after the defrosting is completed, the process proceeds to the next step (Yes in step S1).
　次のステップＳ２では、制御手段２１によって、ポンプ５の送水量を、通常運転（電源ＯＮ直後又は除霜終了直後ではないときの運転）よりも、予め決められた分だけ低下させ、例えば値Ａに設定する（ステップＳ２）。ポンプ５の送水量を、通常運転よりも低くすることによって、水冷媒熱交換器１２における交換熱量が同一であっても、この水冷媒熱交換器１２の出口側の水温を上昇させることができる。ここで、水の密度をρ、水の定圧比熱をＣｐ、水の流量をＧｗ、水冷媒熱交換器１２の出口水温をＴｗｏｕｔ、水冷媒熱交換器１２の入口水温をＴｗｉｎとすると、水冷媒熱交換器１２の交換熱量Ｑは、下記式（１）から求められる。 In the next step S2, the control means 21 lowers the water supply amount of the pump 5 by a predetermined amount from the normal operation (operation not immediately after turning on the power or immediately after defrosting), for example, the value A (Step S2). Even if the amount of exchange heat in the water refrigerant heat exchanger 12 is the same, the water temperature on the outlet side of the water refrigerant heat exchanger 12 can be raised by making the amount of water supplied by the pump 5 lower than in normal operation. . Here, when the density of water is ρ, the constant heat of water is Cp, the flow rate of water is Gw, the outlet water temperature of the water refrigerant heat exchanger 12 is Twout, and the inlet water temperature of the water refrigerant heat exchanger 12 is Twin, The exchange heat quantity Q of the heat exchanger 12 is obtained from the following formula (1).
　［数（１）］
　Ｑ＝ρ×Ｃｐ×Ｇｗ×（Ｔｗｏｕｔ－Ｔｗｉｎ）・・・・・（１） [Number (1)]
Q = ρ × Cp × Gw × (Twout−Twin) (1)
　そして、この式（１）を変形すると、下記式（２）となる。 And when this equation (1) is transformed, the following equation (2) is obtained.
　［数（２）］
　Ｔｗｏｕｔ＝Ｔｗｉｎ＋Ｑ／（ρ×Ｃｐ×Ｇｗ）・・・・・（２） [Number (2)]
Twout = Twin + Q / (ρ × Cp × Gw) (2)
　ポンプ５の送水量を減らすと、水の流量Ｇｗが小さくなる。即ち、上記式（２）における第２項の分母が小さくなるため、交換熱量Ｑが同一であれば、第２項自体は大きくなる。従って、ポンプ５の送水量を減らすことにより、出口水温Ｔｗｏｕｔを上昇させることができる。また、ポンプ５の送水量を減らすことによって、水冷媒熱交換器１２を流れる水の流速も低下する。このため、水冷媒熱交換器１２における水側の熱伝達率が低下して、冷媒の凝縮温度を早急に上昇させることができる。水冷媒熱交換器１２の伝熱面積をＡ、熱通過率をＫ、冷媒の凝縮温度をＴｃ、水温をＴｗとすると、水冷媒熱交換器１２の交換熱量Ｑは、下記式（３）から求められる。 When the amount of water supplied by the pump 5 is reduced, the water flow rate Gw is reduced. That is, since the denominator of the second term in the above formula (2) becomes small, the second term itself becomes large if the exchange heat quantity Q is the same. Therefore, the outlet water temperature Twout can be raised by reducing the amount of water supplied by the pump 5. Moreover, the flow rate of the water which flows through the water-refrigerant heat exchanger 12 is also reduced by reducing the amount of water sent by the pump 5. For this reason, the heat transfer coefficient on the water side in the water-refrigerant heat exchanger 12 can be reduced, and the condensing temperature of the refrigerant can be quickly raised. When the heat transfer area of the water-refrigerant heat exchanger 12 is A, the heat transfer rate is K, the refrigerant condensing temperature is Tc, and the water temperature is Tw, the exchange heat quantity Q of the water-refrigerant heat exchanger 12 is expressed by Desired.
　［数（３）］
　Ｑ＝Ａ×Ｋ×（Ｔｃ－Ｔｗ）・・・・・（３） [Number (3)]
Q = A × K × (Tc−Tw) (3)
　そして、この式（３）を変形すると、下記式（４）となる。 And when this equation (3) is transformed, the following equation (4) is obtained.
　［数（４）］
　Ｔｃ＝Ｔｗ＋Ｑ／（Ａ×Ｋ）・・・・・（４） [Number (4)]
Tc = Tw + Q / (A × K) (4)
　水冷媒熱交換器１２における水側の熱伝達率が低下すると、熱通過率Ｋも低下する。即ち、上記式（４）における第２項の分母が小さくなるため、交換熱量Ｑが同一であれば、第２項は大きくなる。従って、冷媒の凝縮温度Ｔｃを早急に上昇させることができる。 When the water-side heat transfer coefficient in the water-refrigerant heat exchanger 12 decreases, the heat transfer rate K also decreases. That is, since the denominator of the second term in the above formula (4) becomes small, the second term becomes large if the exchange heat quantity Q is the same. Therefore, the refrigerant condensing temperature Tc can be quickly increased.
　このように、ステップＳ２において、ポンプ５の送水量を低下させた後、暖房パネル６ａ，６ｂ，６ｃのうち、人体検知手段６ａｈ，６ｂｈ，６ｃｈによって人がいることが検知された暖房パネルに、加熱された水が優先的に供給される。一方、人がいることが検知された暖房パネルの周囲の暖房パネルには、人がいることが検知された暖房パネルに供給される量よりも少ない水が供給される（ステップＳ３）。 Thus, in step S2, after reducing the amount of water delivered by the pump 5, the heating panel 6a, 6b, 6c, which is detected by the human body detection means 6ah, 6bh, 6ch, Heated water is preferentially supplied. On the other hand, less water is supplied to the heating panel around the heating panel where the presence of a person is detected than the amount supplied to the heating panel where the presence of a person is detected (step S3).
　例えば、暖房パネル６ａ上に人がいて、その周囲の暖房パネル６ｂ，暖房パネル６ｃには人がいない場合について説明する。この場合、例えば、暖房パネル６ａの上流側に設けられた流路切替弁７ａを全て開き、暖房パネル６ｂの上流側に設けられた流路切替弁７ｂを５０％開き、暖房パネル６ｃの上流側に設けられた流路切替弁７ｃも５０％開く。これにより、水回路３内を流通する水の５０％が、暖房パネル６ａに流れ、残りの５０％の水のうち、半分、即ち２５％が、暖房パネル６ｂに流れ、残りの２５％が、暖房パネル６ｃに流れる。このようにして、人がいる暖房パネル６ａに、優先的に加熱された水が供給され、また、その周囲の暖房パネル６ｂ，６ｃにおいても、床温が過度に低下しない程度に、加熱された水が供給される。 For example, a case where there is a person on the heating panel 6a and there are no persons on the surrounding heating panel 6b and the heating panel 6c will be described. In this case, for example, all the flow path switching valves 7a provided on the upstream side of the heating panel 6a are opened, the flow path switching valve 7b provided on the upstream side of the heating panel 6b is opened 50%, and the upstream side of the heating panel 6c. The flow path switching valve 7c provided in the valve is also opened by 50%. Thereby, 50% of the water flowing in the water circuit 3 flows to the heating panel 6a, and half of the remaining 50% of water, that is, 25% flows to the heating panel 6b, and the remaining 25% It flows to the heating panel 6c. In this way, preferentially heated water is supplied to the heating panel 6a where there is a person, and the surrounding heating panels 6b and 6c are also heated to such an extent that the floor temperature does not decrease excessively. Water is supplied.
　人がいる暖房パネル６ａだけに加熱された温水が供給されると、人が、温水が供給されていないそのほかの暖房パネル６ｂ，６ｃに移動した場合、その暖房パネル６ｂ，６ｃは床温が低いため、人に不快感を与えてしまう。本実施の形態は、人がいる暖房パネル６ａを暖めるだけでなく、その周囲の暖房パネル６ｂ，６ｃも、人がいる暖房パネル６ａほどではないにしろ、暖めている。従って、暖房パネル６ａ上にいる人が、その周囲の暖房パネル６ｂ，６ｃに移動しても、周囲の暖房パネル６ｂ，６ｃも暖かいため、移動した人に不快感を与えることを抑制することができる。 When heated water is supplied only to the heating panel 6a where a person is present, when the person moves to another heating panel 6b, 6c to which no warm water is supplied, the floor temperature of the heating panel 6b, 6c is low. Therefore, it gives a person discomfort. In the present embodiment, not only the heating panel 6a in which a person is present is heated, but also the surrounding heating panels 6b and 6c are warmed, if not as much as the heating panel 6a in which a person is present. Therefore, even if a person on the heating panel 6a moves to the surrounding heating panels 6b and 6c, the surrounding heating panels 6b and 6c are also warm, so that it is possible to suppress discomfort to the moved person. it can.
　なお、前述の如く、暖房パネル６ａ，６ｂ，６ｃ上の人の検知は、ひずみゲージ、サーモパイル、サーモパイルを備えたエアコン室内機との連携又は各暖房パネル６ａ，６ｂ，６ｃの戻り水温等を用いて行うことができる。その後、予め決められた時間が経過したかを判定する（ステップＳ４）。予め決められた時間が経過していない場合、この時間が経過するまで、ステップＳ４を繰り返す（ステップＳ４のＮｏ）。予め決められた時間が経過した場合は、次のステップに進む（ステップＳ４のＹｅｓ）。この時間は、例えば、図３（ａ）に示すように、水冷媒熱交換器１２の戻り水温（出口側水温）が、通常運転時の戻り水温に達する時間等に設定することができる。 As described above, detection of people on the heating panels 6a, 6b, 6c uses a strain gauge, a thermopile, cooperation with an air conditioner indoor unit equipped with a thermopile, or the return water temperature of each heating panel 6a, 6b, 6c. Can be done. Thereafter, it is determined whether a predetermined time has elapsed (step S4). If the predetermined time has not elapsed, step S4 is repeated until this time elapses (No in step S4). If the predetermined time has elapsed, the process proceeds to the next step (Yes in step S4). For example, as shown in FIG. 3A, this time can be set to a time when the return water temperature (outlet water temperature) of the water refrigerant heat exchanger 12 reaches the return water temperature during normal operation.
　次のステップＳ５では、図３（ｂ）に示すように、流路切替弁の開き度が１００％ではない流路切替弁のうち１個の開き度を、１００％にし、その流路切替弁の下流側に設けられた暖房パネルに水を流通する（ステップＳ５）。例えば、５０％開いている流路切替弁７ｂ，７ｃを、１００％開く。そして、ポンプ５からの送水量を若干増やす（ステップＳ６）ことによって、図３（ｃ）に示すように、水回路３内を流通する水流量が若干上昇する。このように、ステップＳ３において、電源の投入後又は除霜終了後に、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに供給される水の量が、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ以外の、他の暖房パネル６ｂ及び暖房パネル６ｃに供給される水の量よりも多くなる状態を第１の状態とすると、この第１の状態の後に、第１の状態とは異なる第２の状態となる。 In the next step S5, as shown in FIG. 3 (b), the opening degree of one of the flow path switching valves whose flow path switching valve is not 100% is set to 100%, and the flow path switching valve is opened. Water is circulated through the heating panel provided on the downstream side (step S5). For example, the flow path switching valves 7b and 7c that are 50% open are opened 100%. Then, by slightly increasing the amount of water supplied from the pump 5 (step S6), the flow rate of water flowing through the water circuit 3 slightly increases as shown in FIG. Thus, in step S3, after the power is turned on or after the defrosting is finished, the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah is equal to the amount of water supplied by the human body detection means 6ah. If the first state is a state in which the amount of water supplied to the other heating panel 6b and the heating panel 6c other than the heating panel 6a detected to be present is the first state, The second state is different from the first state.
　この第２の状態は、例えば、ステップＳ４、ステップＳ５のように、水の温度が、予め決められた温度に達したときに、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ以外の、他の暖房パネル６ｂ及び暖房パネル６ｃに供給される水の量を、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに供給される水の量に近づける状態に設定することができる。 In this second state, for example, as in steps S4 and S5, when the temperature of water reaches a predetermined temperature, the human body detection means 6ah detects that there is a person in the heating panel 6a. Other than the above, the amount of water supplied to the other heating panel 6b and the heating panel 6c is set to be close to the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah. be able to.
　そして、各流路切替弁７ａ，７ｂ，７ｃの開度が、いずれも１００％であるかを判定する（ステップＳ７）。複数の流路切替弁７ａ，７ｂ，７ｃのうち、その開度が１００％ではないものが１個でもあれば、ステップＳ４に戻り、再び、予め決められた時間が経過したかを判定する（ステップＳ７のＮｏ）。これに対し、複数の流路切替弁７ａ，７ｂ，７ｃの全ての開度が１００％の場合、この制御を終了し（ステップＳ７のＹｅｓ）、通常運転に移行する。 Then, it is determined whether the opening degree of each flow path switching valve 7a, 7b, 7c is 100% (step S7). If at least one of the plurality of flow path switching valves 7a, 7b, and 7c is not 100% open, the process returns to step S4 to determine again whether a predetermined time has elapsed ( No in step S7). On the other hand, when all the openings of the plurality of flow path switching valves 7a, 7b, 7c are 100%, this control is terminated (Yes in step S7), and the normal operation is started.
　以上説明したように、本実施の形態では、人がいる暖房パネル６ａに、加熱された水を優先的に流通するため、ポンプ５の送水量を下げても、暖房パネル内を流通する水の流速の低下を抑えることができる。このため、暖房パネル６ａ，６ｂ，６ｃに、温水を素早く供給することができる。また、人がいる暖房パネル６ａだけではなく、その周囲の暖房パネル６ｂ，６ｃも暖めているため、暖房パネル６ａ上にいる人が、その周囲の暖房パネル６ｂ，６ｃに移動しても、暖かい。このため、暖房パネルを使用する人の快適性を向上させることができる。なお、本実施の形態では、電源ＯＮ時又は除霜終了後において、上記動作を行っているが、これら以外の通常運転においても、同様に、上記動作を行わせてもよい。この場合、人がいない暖房パネルには、そこまで温水が供給されないため、エネルギ消費を抑えることができる。 As described above, in the present embodiment, heated water is preferentially distributed to the heating panel 6a in which people are present. Therefore, even if the water supply amount of the pump 5 is reduced, the water flowing in the heating panel is reduced. A decrease in flow rate can be suppressed. For this reason, warm water can be rapidly supplied to heating panel 6a, 6b, 6c. Moreover, since not only the heating panel 6a with a person but the surrounding heating panels 6b and 6c are also warmed, even if the person on the heating panel 6a moves to the surrounding heating panels 6b and 6c, it is warm. . For this reason, the comfort of the person who uses a heating panel can be improved. In the present embodiment, the above operation is performed when the power is turned on or after the completion of the defrosting. However, the above operation may be performed in a normal operation other than these. In this case, since the warm water is not supplied to the heating panel without a person, energy consumption can be suppressed.
　なお、本実施の形態１では、ステップＳ３において、人がいることが検知された暖房パネル６ａの上流側の流路切替弁７ａが１００％開かれている。そして、この暖房パネル６ａの周囲の暖房パネル６ｂ、即ち、暖房パネル６ａに隣接された暖房パネル６ｂの上流側の流路切替弁７ｂが５０％開かれている。更に、暖房パネル６ａ及びその周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃ、即ち、人がいることが検知された暖房パネル６ａに隣接されていない暖房パネル６ｃの上流側の流路切替弁７ｃも５０％開かれている。しかし、本発明はこれに限らず、他の構成とすることもできる。 In the first embodiment, in step S3, the flow path switching valve 7a on the upstream side of the heating panel 6a where it is detected that there is a person is opened 100%. And the heating panel 6b around the heating panel 6a, that is, the flow path switching valve 7b on the upstream side of the heating panel 6b adjacent to the heating panel 6a is opened by 50%. Furthermore, other than the heating panel 6a and the surrounding heating panel 6b, a flow path switching valve on the upstream side of the other heating panel 6c, that is, the heating panel 6c that is not adjacent to the heating panel 6a detected to have a person. 7c is also 50% open. However, the present invention is not limited to this, and may have other configurations.
　例えば、暖房パネル６ａの上流側の流路切替弁７ａが１００％開かれ、暖房パネル６ｂの上流側の流路切替弁７ｂが５０％開かれ、暖房パネル６ｃの上流側の流路切替弁７ｃが閉じられてもよい。この場合、水回路３内を流通する水の６７％が暖房パネル６ａに流れ、残りの３３％の水が暖房パネル６ｂに流れ、暖房パネル６ｃには水が流れない。これにより、暖房パネル６ａ上にいる人が、その暖房パネル６ａに隣接された暖房パネル６ｂ上に移動しても、暖房パネル６ｂも暖められているため、移動した人に不快感を与えない。更に、暖房パネル６ａに隣接されておらず、直ちに人が移動することが想定され難い暖房パネル６ｃは暖められていないため、省エネ性を確保することができる。 For example, the flow path switching valve 7a on the upstream side of the heating panel 6a is opened 100%, the flow path switching valve 7b on the upstream side of the heating panel 6b is opened 50%, and the flow path switching valve 7c on the upstream side of the heating panel 6c. May be closed. In this case, 67% of the water flowing through the water circuit 3 flows to the heating panel 6a, the remaining 33% of the water flows to the heating panel 6b, and no water flows to the heating panel 6c. Thereby, even if the person on the heating panel 6a moves on the heating panel 6b adjacent to the heating panel 6a, the heating panel 6b is also warmed, so that the person who has moved does not feel uncomfortable. Furthermore, since the heating panel 6c that is not adjacent to the heating panel 6a and is unlikely to move immediately is not warmed, energy saving can be ensured.
　そのほかに、例えば、暖房パネル６ａの上流側の流路切替弁７ａが１００％開かれ、暖房パネル６ｂの上流側の流路切替弁７ｂが５０％開かれ、暖房パネル６ｃの上流側の流路切替弁７ｃが２５％開かれてもよい。この場合、水回路３内を流通する水の５７％が暖房パネル６ａに流れ、残りの４３％のうち２９％の水が暖房パネル６ｂに流れ、残りの４３％のうち１４％の水が暖房パネル６ｃに流れる。これにより、暖房パネル６ａ上にいる人が、その暖房パネル６ａに隣接された暖房パネル６ｂ上に移動しても、暖房パネル６ｂも暖められているため、移動した人に不快感を与えず、更に、暖房パネル６ｂ上から暖房パネル６ｃ上に移動しても、暖房パネル６ｃも暖められているため、移動した人は不快感を覚えない。更に、直ちに人が移動することが想定され難い暖房パネル６ｃに流れる水の量が、直ちに人が移動することが想定される暖房パネル６ｂに流れる水の量よりも少ないため、省エネ性と快適性とを両立することができる。 In addition, for example, the flow path switching valve 7a upstream of the heating panel 6a is opened 100%, the flow path switching valve 7b upstream of the heating panel 6b is opened 50%, and the upstream flow path of the heating panel 6c. The switching valve 7c may be opened by 25%. In this case, 57% of the water flowing in the water circuit 3 flows to the heating panel 6a, 29% of the remaining 43% flows to the heating panel 6b, and 14% of the remaining 43% of the water is heated. It flows to the panel 6c. Thereby, even if the person on the heating panel 6a moves to the heating panel 6b adjacent to the heating panel 6a, the heating panel 6b is also warmed, so that the person who has moved does not feel uncomfortable, Furthermore, even if it moves from the heating panel 6b to the heating panel 6c, the moving panel does not feel uncomfortable because the heating panel 6c is also warmed. Furthermore, since the amount of water flowing through the heating panel 6c that is unlikely to be immediately moved by a person is less than the amount of water flowing through the heating panel 6b that is expected to be moved immediately, energy saving and comfort are provided. And both.
　このように、本発明は、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに供給される水の量を、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂに供給される水の量よりも多く、また、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂに供給される水の量を、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ、及び人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃに供給される水の量よりも多くすることができる。これにより、上記のとおり、省エネ性及び快適性の両立を図ることができる。 As described above, according to the present invention, the amount of water supplied to the heating panel 6a detected by the human body detection unit 6ah is determined based on the amount of water supplied to the heating panel 6a detected by the human body detection unit 6ah. More than the amount of water supplied to the surrounding heating panel 6b and the amount of water supplied to the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah It is supplied to the other heating panel 6c other than the heating panel 6a detected by the detection means 6ah and the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah. The amount of water that can be increased. Thereby, as above-mentioned, coexistence of energy-saving property and comfort can be aimed at.
　更に、水の温度が、予め決められた第１の温度に達したときに、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂに供給される水の量を、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに供給される水の量に近づけてもよい。更にまた、水の温度が、予め決められた第１の温度よりも高い第２の温度に達したときに、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ、及び人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃに供給される水の量を、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに供給される水の量に近づけてもよい。 Furthermore, when the temperature of the water reaches a predetermined first temperature, the amount of water supplied to the heating panel 6b around the heating panel 6a that is detected by the human body detection means 6ah. May be brought close to the amount of water supplied to the heating panel 6a detected by the human body detection means 6ah. Furthermore, when the temperature of the water reaches a second temperature higher than the predetermined first temperature, the heating panel 6a detected by the human body detection means 6ah and the human body detection means Heating in which the human body detecting means 6ah detects the presence of a person in the amount of water supplied to other heating panels 6c other than the heating panel 6b around the heating panel 6a in which the presence of a person is detected in 6ah You may approach the quantity of the water supplied to the panel 6a.
　図１４は、居室に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。図１４に示すように、居室、例えば、リビングダイニングキッチンにおいて、リビングＬには、暖房パネル６ａ及び暖房パネル６ｂが設けられており、ダイニングキッチンＤＫには、暖房パネル６ｃが設けられている。本発明は、このような循環加温装置にも適用することが可能である。 FIG. 14 is a schematic diagram showing the heating panels 6a, 6b, 6c installed in the living room. As shown in FIG. 14, in a living room, for example, a living / dining kitchen, the living room L is provided with a heating panel 6a and a heating panel 6b, and the dining kitchen DK is provided with a heating panel 6c. The present invention can also be applied to such a circulation heating apparatus.
　例えば、リビングＬに設置された暖房パネル６ａ上に人がいることが検知された場合、人がいることが検知された暖房パネル６ａに供給される水の量を、その暖房パネル６ａ以外の、他の暖房パネル６ｂ、暖房パネル６ｃに供給される水の量よりも多くすることができる。これにより、リビングＬにおいて、暖房パネル６ａ上に人が、その暖房パネル６ａに隣接された暖房パネル６ｂ上に移動しても、暖房パネル６ｂも暖められているため、移動した人に不快感を与えず、更に、リビングＬからダイニングキッチンＤＫ、即ち、暖房パネル６ｂ上から暖房パネル６ｃ上に移動しても、暖房パネル６ｃも暖められているため、移動した人は不快感を覚えない。 For example, when it is detected that there is a person on the heating panel 6a installed in the living room L, the amount of water supplied to the heating panel 6a that is detected to have a person is set to a value other than the heating panel 6a. The amount of water supplied to the other heating panel 6b and the heating panel 6c can be increased. Thereby, in the living room L, even if a person moves on the heating panel 6a onto the heating panel 6b adjacent to the heating panel 6a, the heating panel 6b is also warmed. Furthermore, even if it moves from the living room L to the dining kitchen DK, that is, from the heating panel 6b to the heating panel 6c, the moved panel does not feel uncomfortable because the heating panel 6c is also warmed.
　そのほかに、例えば、リビングＬに設置された暖房パネル６ａ上に人がいることが検知された場合、人がいることが検知された暖房パネル６ａに供給される水の量を、その暖房パネル６ａの周囲の暖房パネル６ｂ、即ち、暖房パネル６ａに隣接された暖房パネル６ｂに供給される水の量よりも多くし、また、暖房パネル６ｂに供給される水の量を、暖房パネル６ａ及びその周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃ、即ち、人がいる暖房パネル６ａに隣接されていない暖房パネル６ｃに供給される水の量よりも多くしてもよい。 In addition, for example, when it is detected that there is a person on the heating panel 6a installed in the living room L, the amount of water supplied to the heating panel 6a in which the person is detected is determined by the heating panel 6a. More than the amount of water supplied to the heating panel 6b adjacent to the heating panel 6a, that is, the heating panel 6b adjacent to the heating panel 6a. The amount of water supplied to other heating panels 6c other than the surrounding heating panel 6b, that is, the heating panel 6c that is not adjacent to the heating panel 6a in which people are present may be increased.
　これにより、リビングＬにおいて、暖房パネル６ａ上の人が、その暖房パネル６ａに隣接された暖房パネル６ｂ上に移動しても、暖房パネル６ｂも暖められているため、移動した人に不快感を与えず、更に、リビングＬからダイニングキッチンＤＫ、即ち、暖房パネル６ｂ上から暖房パネル６ｃ上に移動しても、暖房パネル６ｃも暖められているため、移動した人が不快感を覚えないという効果を奏する。また、これに加え、直ちに人が移動することが想定され難いダイニングキッチンＤＫに設置された暖房パネル６ｃに流れる水の量が、直ちに人が移動することが想定されるリビングＬに設置された暖房パネル６ｂに流れる水の量よりも少ないため、省エネ性も確保することができる。即ち、快適性と省エネ性とを両立することができる。図１５は、居室に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。図１５に示すように、居室、例えば、リビングダイニングキッチンにおいて、リビングＬには、暖房パネル６ａが設けられており、ダイニングＤには、暖房パネル６ｂが設けられており、キッチンＫには、暖房パネル６ｃが設けられている。本発明は、図１５に示すようなリビングダイニングキッチンにおける循環加温装置に適用することも可能である。 Thereby, even if the person on the heating panel 6a moves on the heating panel 6b adjacent to the heating panel 6a in the living room L, the heating panel 6b is also warmed. Furthermore, even if it moves from the living room L to the dining kitchen DK, that is, from the heating panel 6b to the heating panel 6c, since the heating panel 6c is also warmed, the moved person does not feel uncomfortable. Play. In addition to this, the amount of water flowing in the heating panel 6c installed in the dining kitchen DK, which is unlikely to be immediately moved by the person, is heated in the living room L where the person is expected to move immediately. Since it is less than the amount of water flowing through the panel 6b, it is possible to ensure energy saving. That is, both comfort and energy saving can be achieved. FIG. 15 is a schematic diagram showing the heating panels 6a, 6b, and 6c installed in the living room. As shown in FIG. 15, in a living room, for example, a living / dining kitchen, the living L is provided with a heating panel 6 a, the dining D is provided with a heating panel 6 b, and the kitchen K is heated. A panel 6c is provided. The present invention can also be applied to a circulation heating apparatus in a living dining kitchen as shown in FIG.
実施の形態２．
　次に、実施の形態２に係る循環加温装置１について説明する。図５は、実施の形態２に係る循環加温装置１を示す回路図、図６は、実施の形態２に係る循環加温装置１の動作を示すフローチャート、図７は、実施の形態２における水流量を示すグラフ図である。本実施の形態は、図５に示すように、水冷媒熱交換器１２の入口側に、水温を検知する入口水温センサー３２ａを設け、また、水冷媒熱交換器１２の出口側に、水温を検知する出口水温センサー３２ｂを設けた点で、実施の形態１と相違する。本実施の形態２では、実施の形態１と共通する部分は説明を省略し、実施の形態１との相違点を中心に説明する。 Embodiment 2. FIG.
Next, the circulating heating apparatus 1 according to Embodiment 2 will be described. FIG. 5 is a circuit diagram showing the circulating heating apparatus 1 according to the second embodiment, FIG. 6 is a flowchart showing the operation of the circulating heating apparatus 1 according to the second embodiment, and FIG. It is a graph which shows a water flow rate. In the present embodiment, as shown in FIG. 5, an inlet water temperature sensor 32 a that detects the water temperature is provided on the inlet side of the water refrigerant heat exchanger 12, and the water temperature is set on the outlet side of the water refrigerant heat exchanger 12. The difference from Embodiment 1 is that an outlet water temperature sensor 32b to be detected is provided. In the second embodiment, the description of the parts common to the first embodiment will be omitted, and the difference from the first embodiment will be mainly described.
　本実施の形態に係る循環加温装置１の動作は、ステップＳ３までは、実施の形態１と同様である。そして、図６に示すように、入口水温センサー３２ａが検知した水温又は出口水温センサー３２ｂが検知した水温（戻り水温）が予め決められた水温に達したかを判定する（ステップＳ４）。水冷媒熱交換器１２の戻り水温が予め決められた値を下回る場合、この戻り水温が、予め決められた値以上となるまで、ステップＳ４を繰り返す（ステップＳ４のＮｏ）。戻り水温が、予め決められた値以上である場合は、次のステップに進む（ステップＳ４のＹｅｓ）。なお、これ以降の動作は、実施の形態１と同様である。 The operation of the circulating heating apparatus 1 according to the present embodiment is the same as that of the first embodiment until step S3. Then, as shown in FIG. 6, it is determined whether the water temperature detected by the inlet water temperature sensor 32a or the water temperature (return water temperature) detected by the outlet water temperature sensor 32b has reached a predetermined water temperature (step S4). When the return water temperature of the water-refrigerant heat exchanger 12 is lower than a predetermined value, Step S4 is repeated until the return water temperature becomes equal to or higher than the predetermined value (No in Step S4). When the return water temperature is equal to or higher than a predetermined value, the process proceeds to the next step (Yes in step S4). The subsequent operations are the same as those in the first embodiment.
　本実施の形態では、時間ではなく、出口水温（戻り水温）を検知することによって、次のステップに進むため、実施の形態１で得られる効果に加え、水温を過剰に上昇させてしまったり、水温が上がる前にポンプ５からの送水量を増やしてしまったりすることを抑制することができるという効果を奏する。即ち、図７（ａ）に示すように、水温が過剰に上昇することを抑制することができる。なお、図７（ｂ）は、図３（ｂ）と同様であり、図７（ｃ）は、図３（ｃ）と同様である。また、本実施の形態では、入口水温センサー３２ａ及び出口水温センサー３２ｂの両方を設けているが、いずれか１つを設けるようにしてもよい。 In this embodiment, in order to proceed to the next step by detecting the outlet water temperature (return water temperature) instead of time, in addition to the effect obtained in Embodiment 1, the water temperature is excessively increased, There is an effect that it is possible to suppress an increase in the amount of water supplied from the pump 5 before the water temperature rises. That is, as shown to Fig.7 (a), it can suppress that water temperature rises excessively. FIG. 7B is the same as FIG. 3B, and FIG. 7C is the same as FIG. In the present embodiment, both the inlet water temperature sensor 32a and the outlet water temperature sensor 32b are provided, but any one of them may be provided.
　本実施の形態では、水温により、ポンプ５の送水量及び暖房パネル６ａ，６ｂ，６ｃの流路切替弁を調整していたが、この調整を、床温により行ってもよい。具体的には、暖房パネル６ａ，６ｂ，６ｃに床温センサーを設け、この床温センサーが検知した床温が、予め決められた床温に達するか否かを判定する。このように、床温により、ポンプ５の送水量及び暖房パネル６ａ，６ｂ，６ｃの流路切替弁を調整しても、実施の形態２と同様の効果を奏する。なお、水温と床温とのいずれをも使用して、これらの水温及び床温に基づいて、ポンプ５の送水量及び暖房パネル６ａ，６ｂ，６ｃの流路切替弁を調整することも可能である。 In this embodiment, the water supply amount of the pump 5 and the flow path switching valves of the heating panels 6a, 6b, 6c are adjusted by the water temperature, but this adjustment may be performed by the bed temperature. Specifically, a floor temperature sensor is provided in the heating panels 6a, 6b, and 6c, and it is determined whether or not the floor temperature detected by the floor temperature sensor reaches a predetermined bed temperature. Thus, even if the water supply amount of the pump 5 and the flow path switching valves of the heating panels 6a, 6b, and 6c are adjusted by the bed temperature, the same effects as those of the second embodiment are obtained. In addition, it is also possible to use both the water temperature and the bed temperature, and adjust the water supply amount of the pump 5 and the flow path switching valves of the heating panels 6a, 6b, 6c based on the water temperature and the bed temperature. is there.
実施の形態３．
　次に、実施の形態３に係る循環加温装置１について説明する。図８は、実施の形態３に係る循環加温装置１を示す回路図、図９は、図７のグラフに、実施の形態３における圧縮機１１の吐出温度目標値を示すグラフを加えた図である。本実施の形態は、図８に示すように、圧縮機１１の吐出側に、吐出温度センサー３３を設けた点で、実施の形態２と相違する。本実施の形態３では、実施の形態１，２と共通する部分は説明を省略し、実施の形態１，２との相違点を中心に説明する。 Embodiment 3 FIG.
Next, the circulating heating apparatus 1 according to Embodiment 3 will be described. FIG. 8 is a circuit diagram showing the circulating heating device 1 according to the third embodiment, and FIG. 9 is a diagram in which a graph showing the discharge temperature target value of the compressor 11 in the third embodiment is added to the graph of FIG. It is. As shown in FIG. 8, the present embodiment is different from the second embodiment in that a discharge temperature sensor 33 is provided on the discharge side of the compressor 11. In the third embodiment, the description of the parts common to the first and second embodiments is omitted, and the difference from the first and second embodiments will be mainly described.
　本実施の形態では、吐出温度センサー３３により、圧縮機１１から吐出される冷媒の吐出温度を検知する。そして、電源ＯＮ時又は除霜終了後において、図９（ｄ）に示すように、目標とする吐出温度（吐出温度目標値）を高くする。このように、本実施の形態では、実施の形態１，２で得られる効果に加え、吐出温度目標値を高く設定することによって、圧縮機１１から供給される冷媒温度を早急に高めることができ、従って、水冷媒熱交換器１２によって、この冷媒と熱交換される水の温度も、素早く上昇させることができる。このため、この温水を暖房パネル６ａ，６ｂ，６ｃに供給することによって、暖房パネル６ａ，６ｂ，６ｃを使用する人の快適性を向上させることができる。なお、図９（ａ）は、図７（ａ）と同様であり、図９（ｂ）は、図７（ｂ）と同様であり、図９（ｃ）は、図７（ｃ）と同様である。 In the present embodiment, the discharge temperature sensor 33 detects the discharge temperature of the refrigerant discharged from the compressor 11. Then, when the power is turned on or after the defrosting is completed, the target discharge temperature (discharge temperature target value) is increased as shown in FIG. As described above, in the present embodiment, in addition to the effects obtained in the first and second embodiments, the refrigerant temperature supplied from the compressor 11 can be quickly increased by setting the target discharge temperature high. Therefore, the water refrigerant heat exchanger 12 can also quickly raise the temperature of the water exchanged with this refrigerant. For this reason, the comfort of the person who uses heating panel 6a, 6b, 6c can be improved by supplying this warm water to heating panel 6a, 6b, 6c. 9A is the same as FIG. 7A, FIG. 9B is the same as FIG. 7B, and FIG. 9C is the same as FIG. 7C. It is.
実施の形態４．
　次に、実施の形態４に係る循環加温装置１について説明する。図１０は、実施の形態４に係る循環加温装置１を示す回路図である。本実施の形態は、図１０に示すように、バイパス回路３４を設けた点で、実施の形態３と相違する。本実施の形態４では、実施の形態１，２，３と共通する部分は説明を省略し、実施の形態１，２，３との相違点を中心に説明する。 Embodiment 4 FIG.
Next, the circulating heating apparatus 1 according to Embodiment 4 will be described. FIG. 10 is a circuit diagram showing the circulating heating apparatus 1 according to the fourth embodiment. As shown in FIG. 10, the present embodiment is different from the third embodiment in that a bypass circuit 34 is provided. In the fourth embodiment, the description of the parts common to the first, second, and third embodiments will be omitted, and the difference from the first, second and third embodiments will be mainly described.
　本実施の形態では、水冷媒熱交換器１２の出口側と、圧縮機１１の吸入側とを、バイパス配管３４ａによってバイパスしている。このバイパス配管３４ａには、バイパス回路３４を流通する冷媒の流量を調節するバイパス流量調節弁３４ｂが設けられている。前述の如く、実施の形態４では、圧縮機１１の吐出温度目標値を上げているが、このような場合、吐出温度が過度に上昇する虞がある。吐出温度を下げる手段として、圧縮機１１の周波数を下げることも考えられるが、圧縮機周波数を下げると、冷媒の循環量も減少するため、交換する熱量が低下してしまう。本実施の形態では、バイパス回路３４によって、水冷媒熱交換器１２を流通した液冷媒を、圧縮機１１の吸入側にバイパスして、圧縮機１１の吐出温度の過度の上昇を調整している。これにより、実施の形態１，２，３で得られる効果に加え、吐出温度が過剰に上がることを抑制しつつ、冷媒の循環量を減らさずにすむため、暖房パネル６ａ，６ｂ，６ｃに、高温の水を供給することができる。 In the present embodiment, the outlet side of the water refrigerant heat exchanger 12 and the suction side of the compressor 11 are bypassed by the bypass pipe 34a. The bypass pipe 34 a is provided with a bypass flow rate adjustment valve 34 b that adjusts the flow rate of the refrigerant flowing through the bypass circuit 34. As described above, in the fourth embodiment, the discharge temperature target value of the compressor 11 is increased. In such a case, the discharge temperature may be excessively increased. As a means for lowering the discharge temperature, it is conceivable to lower the frequency of the compressor 11. However, when the compressor frequency is lowered, the circulation amount of the refrigerant is also reduced, so that the amount of heat to be exchanged is lowered. In the present embodiment, the bypass refrigerant 34 bypasses the liquid refrigerant that has passed through the water refrigerant heat exchanger 12 to the suction side of the compressor 11 to adjust an excessive increase in the discharge temperature of the compressor 11. . Thereby, in addition to the effects obtained in the first, second, and third embodiments, the heating panel 6a, 6b, 6c can be prevented from reducing the circulation amount of the refrigerant while suppressing the discharge temperature from rising excessively. Hot water can be supplied.
実施の形態５．
　次に、実施の形態５に係る循環加温装置１について説明する。図１１は、実施の形態５に係る循環加温装置１を示す回路図である。本実施の形態は、図１１に示すように、アキュームレータ３５を設けた点で、実施の形態４と相違する。本実施の形態５では、実施の形態１，２，３，４と共通する部分は説明を省略し、実施の形態１，２，３，４との相違点を中心に説明する。 Embodiment 5 FIG.
Next, the circulating heating apparatus 1 according to Embodiment 5 will be described. FIG. 11 is a circuit diagram showing the circulating heating apparatus 1 according to the fifth embodiment. As shown in FIG. 11, the present embodiment is different from the fourth embodiment in that an accumulator 35 is provided. In the fifth embodiment, description of parts common to the first, second, third, and fourth embodiments will be omitted, and description will be made focusing on differences from the first, second, third, and fourth embodiments.
　本実施の形態では、圧縮機１１の吸入側に、ガス冷媒と液冷媒とを分離するアキュームレータ３５が設けられている。これにより、実施の形態１，２，３，４で得られる効果に加え、圧縮機１１に液冷媒が流通するという液バックが、過度に生じることを抑制することができるため、循環加温装置１の信頼性が向上する。なお、アキュームレータ３５を設置した場合、通常は、アキュームレータ３５による気液分離により、圧縮機１１の吸入クオリティが概ね決まってしまい、圧縮機１１の吐出制御を行い難い。圧縮機１１の周波数を下げることにより、圧縮機１１の吐出温度を下げることはできるが、前述の如く、冷媒の循環量も低下してしまう。本実施の形態では、バイパス回路３４を設けることによって、吐出温度を下げているため、アキュームレータ３５の設置による吐出制御の困難性という問題を解消することができる。なお、この場合、バイパス回路３４の一端は、アキュームレータ３５の下流に設置する必要がある。 In the present embodiment, an accumulator 35 that separates the gas refrigerant and the liquid refrigerant is provided on the suction side of the compressor 11. Thereby, in addition to the effects obtained in the first, second, third, and fourth embodiments, it is possible to prevent the liquid back that the liquid refrigerant circulates through the compressor 11 from occurring excessively. 1 reliability is improved. When the accumulator 35 is installed, the suction quality of the compressor 11 is generally determined by gas-liquid separation by the accumulator 35, and it is difficult to control the discharge of the compressor 11. Although the discharge temperature of the compressor 11 can be lowered by lowering the frequency of the compressor 11, as described above, the circulation amount of the refrigerant is also lowered. In the present embodiment, since the discharge temperature is lowered by providing the bypass circuit 34, the problem of difficulty in discharge control due to the installation of the accumulator 35 can be solved. In this case, one end of the bypass circuit 34 needs to be installed downstream of the accumulator 35.
実施の形態６．
　次に、実施の形態６に係る循環加温装置１について説明する。図１２は、実施の形態６に係る循環加温装置１を示す回路図である。本実施の形態は、図１２に示すように、四方弁３６を設けた点で、実施の形態５と相違する。本実施の形態６では、実施の形態１，２，３，４，５と共通する部分は説明を省略し、実施の形態１，２，３，４，５との相違点を中心に説明する。 Embodiment 6 FIG.
Next, the circulating heating apparatus 1 according to Embodiment 6 will be described. FIG. 12 is a circuit diagram showing the circulating heating apparatus 1 according to the sixth embodiment. This embodiment is different from the fifth embodiment in that a four-way valve 36 is provided as shown in FIG. In the sixth embodiment, description of parts common to the first, second, third, fourth, and fifth embodiments will be omitted, and differences from the first, second, third, fourth, and fifth embodiments will be mainly described. .
　本実施の形態では、四方弁３６を設けたことにより、冷媒回路４における冷媒の流通方向を変更し、暖房運転だけでなく除霜運転も行うことができる。即ち、暖房運転時には、圧縮機１１、水冷媒熱交換器１２、膨張弁１３、空気冷媒熱交換器１４、アキュームレータ３５の順に、冷媒が流通する。これに対し、除霜運転時には、圧縮機１１、空気冷媒熱交換器１４、膨張弁１３、水冷媒熱交換器１２、アキュームレータ３５の順に、冷媒が流通する。この除霜運転では、水冷媒熱交換器１２が蒸発器として作用するため、水回路３を流通する水が冷却される。これにより、暖房運転とは逆に、暖房パネル６ａ，６ｂ，６ｃは冷却される。 In the present embodiment, by providing the four-way valve 36, the refrigerant flow direction in the refrigerant circuit 4 can be changed, and not only the heating operation but also the defrosting operation can be performed. That is, during the heating operation, the refrigerant flows in the order of the compressor 11, the water refrigerant heat exchanger 12, the expansion valve 13, the air refrigerant heat exchanger 14, and the accumulator 35. In contrast, during the defrosting operation, the refrigerant flows in the order of the compressor 11, the air refrigerant heat exchanger 14, the expansion valve 13, the water refrigerant heat exchanger 12, and the accumulator 35. In this defrosting operation, since the water refrigerant heat exchanger 12 acts as an evaporator, the water flowing through the water circuit 3 is cooled. Thereby, contrary to heating operation, heating panel 6a, 6b, 6c is cooled.
　本実施の形態では、除霜運転時には、人体検知手段６ａｈ，６ｂｈ，６ｃｈによって、人がいないことが検知された暖房パネルのみ、流路切替弁を開き、人がいることが検知された暖房パネルにおいては、流路切替弁を閉じる。除霜の際、人がいる暖房パネルに水を流すと、床温が低下し、人に不快感を与えてしまう。本実施の形態では、人がいない暖房パネルのみに冷水が流通し、人がいる暖房パネルに冷水は流れないため、実施の形態１，２，３，４，５で得られる効果に加え、人の快適性を向上させることができる。なお、本実施の形態では、四方弁３６を設けることにより、除霜運転を可能としたが、本発明は、これに限らず、空気冷媒熱交換器１４を加熱できる構成であればよい。 In the present embodiment, during the defrosting operation, only the heating panel in which it is detected that there is no person by the human body detecting means 6ah, 6bh, 6ch, the flow path switching valve is opened, and the heating panel in which the person is detected is detected. In, the flow path switching valve is closed. When defrosting, if water is allowed to flow through the heating panel where a person is present, the floor temperature is lowered, which causes discomfort to the person. In the present embodiment, cold water circulates only in the heating panel where there is no person, and cold water does not flow into the heating panel where there is a person. In addition to the effects obtained in the first, second, third, fourth, and fifth embodiments, Comfort can be improved. In the present embodiment, the defrosting operation can be performed by providing the four-way valve 36. However, the present invention is not limited to this, and any configuration that can heat the air refrigerant heat exchanger 14 may be used.
　なお、本実施の形態６は、実施の形態１における構成を備えていなくとも、実施可能である。本実施の形態６においては、加熱源２と、加熱源２で加熱された水が流通する複数の暖房パネルと、複数の暖房パネル上の人の有無を検知する人体検知手段とを備えていればよい。そして、除霜運転の際、人体検知手段６ｂｈ、６ｃｈで人がいないことが検知された暖房パネル６ｂ、６ｃに水を供給し、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに水を供給しないように構成すればよい。 It should be noted that the sixth embodiment can be implemented even if the configuration in the first embodiment is not provided. In the sixth embodiment, a heating source 2, a plurality of heating panels through which water heated by the heating source 2 circulates, and a human body detection means for detecting the presence or absence of a person on the plurality of heating panels are provided. That's fine. Then, during the defrosting operation, water is supplied to the heating panels 6b and 6c where it is detected that there is no person in the human body detection means 6bh and 6ch, and the heating panel 6a in which the person is detected by the human body detection means 6ah. What is necessary is just to comprise so that water may not be supplied.
　図１６は、各部屋に設置された暖房パネル６ａ、６ｂ、６ｃを示す模式図である。図１６に示すように、部屋Ｒ１、部屋Ｒ２、部屋Ｒ３は、区画されて夫々独立した居室となっており、いずれも、廊下Ｃから出入り可能となっている。そして、部屋Ｒ１には暖房パネル６ａが設置されており、部屋Ｒ２には暖房パネル６ｂが設置されており、部屋Ｒ３には暖房パネル６ｃが設置されている。本実施の形態６は、このような循環加温装置にも適用することができる。 FIG. 16 is a schematic diagram showing the heating panels 6a, 6b, 6c installed in each room. As shown in FIG. 16, the room R 1 , the room R 2 , and the room R 3 are partitioned and become independent rooms, all of which can enter and exit from the corridor C. Then, the room R 1 is installed heating panel 6a is, in the room R 2 are installed heating panel 6b is, in the room R 3 heating panel 6c is installed. The sixth embodiment can also be applied to such a circulation heating apparatus.
　例えば、部屋Ｒ１に設置された暖房パネル６ａ上に人がいることが検知された場合、除霜運転の際、人がいないことが検知された部屋Ｒ２における暖房パネル６ｂ及び部屋Ｒ３における暖房パネル６ｃに水を供給し、人がいることが検知された部屋Ｒ１における暖房パネル６ａには水を供給しないようにすることができる。このように、本実施の形態６は、同じ居室内に複数の暖房パネルが設置された循環加温装置だけではなく、異なる複数の居室に設置された暖房パネルを備える循環加温装置にも適用することができる。なお、部屋は、リビングダイニングキッチン自体としてもよく、リビングダイニングキッチンの一部としてもよい。 For example, if the there is a person on the heating panel 6a installed in the room R 1 is detected, during the defrosting operation, the heating panel 6b and the room R 3 in the room R 2, which is that no one has been detected water was supplied to the heating panel 6c, the heating panel 6a in the room R 1 it is detected that there is a person can be prevented by supplying water. Thus, this Embodiment 6 is applied not only to the circulating heating apparatus in which a plurality of heating panels are installed in the same living room, but also to the circulating heating apparatus having a heating panel installed in a plurality of different living rooms. can do. The room may be the living dining kitchen itself or may be a part of the living dining kitchen.
実施の形態７．
　次に、実施の形態７に係る循環加温装置１について説明する。図１３は、実施の形態７に係る循環加温装置１の動作を示すフローチャートである。本実施の形態は、循環加温装置１の動作が、実施の形態６と相違する。本実施の形態７では、実施の形態１，２，３，４，５，６と共通する部分は説明を省略し、実施の形態１，２，３，４，５，６との相違点を中心に説明する。 Embodiment 7 FIG.
Next, the circulating heating apparatus 1 according to Embodiment 7 will be described. FIG. 13 is a flowchart showing the operation of the circulating heating apparatus 1 according to the seventh embodiment. In the present embodiment, the operation of the circulating heating device 1 is different from that of the sixth embodiment. In the seventh embodiment, the description common to the first, second, third, fourth, fifth and sixth embodiments is omitted, and the difference from the first, second, third, fourth, fifth and sixth embodiments is omitted. The explanation will be centered.
　本実施の形態に係る循環加温装置１の動作について説明する。図１３に示すように、先ず、除霜運転を開始したかを判定する（ステップＳ１１）。除霜運転を開始していない場合、本実施の形態における動作を行わないため、制御フローを終了する（ステップＳ１１のＮｏ）。除霜運転を開始した場合は、次のステップに進む（ステップＳ１１のＹｅｓ）。 The operation of the circulating heating apparatus 1 according to the present embodiment will be described. As shown in FIG. 13, first, it is determined whether the defrosting operation has been started (step S11). When the defrosting operation is not started, the operation in the present embodiment is not performed, and thus the control flow is ended (No in step S11). When the defrosting operation is started, the process proceeds to the next step (Yes in step S11).
　次のステップＳ１２では、人がいないことが検知された暖房パネルの上流側に設けられた流路切替弁を開き、人がいることが検知された暖房パネルの上流側に設けられた流路切替弁を閉じる（ステップＳ１２）。暖房パネル上の人の検知は、ひずみゲージ、サーモパイル、サーモパイルを備えたエアコン室内機との連携又は各暖房パネルの戻り水温等を用いて行うことができる。なお、このステップＳ１２までは、実施の形態６と同様である。 In the next step S12, the flow path switching valve provided on the upstream side of the heating panel where it is detected that there is no person is opened, and the flow path switching provided on the upstream side of the heating panel where it is detected that there is a person. The valve is closed (step S12). A person on the heating panel can be detected using a strain gauge, a thermopile, an air conditioner indoor unit equipped with a thermopile, or the return water temperature of each heating panel. The steps up to step S12 are the same as in the sixth embodiment.
　そして水冷媒熱交換器１２の出口側に設けられた出口水温センサー３２ｂが検知した水温（戻り水温）が予め決められた水温以上であるかを判定する（ステップＳ１３）。この戻り水温が低下し過ぎると、凍結の虞があるため、戻り水温を上昇させる必要がある。戻り水温が、予め決められた水温を下回る場合（ステップＳ１３のＮｏ）、全ての流路切替弁が開いているかを判定する（ステップＳ１４）。なお、本実施の形態では、凍結の可能性の有無を判断するための循環水温度検知手段（循環水温度センサー）として、出口水温センサー３２ｂを用いている。 Then, it is determined whether the water temperature (return water temperature) detected by the outlet water temperature sensor 32b provided on the outlet side of the water refrigerant heat exchanger 12 is equal to or higher than a predetermined water temperature (step S13). If this return water temperature is too low, there is a risk of freezing, so it is necessary to raise the return water temperature. When the return water temperature is lower than the predetermined water temperature (No in step S13), it is determined whether all the flow path switching valves are open (step S14). In the present embodiment, the outlet water temperature sensor 32b is used as the circulating water temperature detecting means (circulating water temperature sensor) for determining the possibility of freezing.
　そして、開いていない流路切替弁が１つでもあれば（ステップＳ１４のＮｏ）、それらの流路切替弁のうち、１つを開く（ステップＳ１５）。このように、戻り水温が低下した場合、流路切替弁を開いて、暖房パネル６ａ，６ｂ，６ｃに溜まった温水を流通させることにより、凍結を抑制する。その後、再び、ステップＳ１３において、戻り水温の判定を行う。ステップＳ１４において、全ての流路切替弁が開いていれば、次のステップに進む（ステップＳ１４のＹｅｓ）。また、ステップＳ１３においても、戻り水温が予め決められた水温以上であれば、次のステップに進む（ステップＳ１３のＹｅｓ）。 If there is at least one channel switching valve that is not open (No in step S14), one of the channel switching valves is opened (step S15). Thus, when the return water temperature falls, freezing is suppressed by opening the flow path switching valve and circulating the hot water accumulated in the heating panels 6a, 6b, 6c. Thereafter, in step S13, the return water temperature is determined again. If all the flow path switching valves are open in step S14, the process proceeds to the next step (Yes in step S14). In step S13, if the return water temperature is equal to or higher than the predetermined water temperature, the process proceeds to the next step (Yes in step S13).
　次のステップでは、除霜が終了したかを判定する（ステップＳ１６）。除霜が終了していない場合は、ステップＳ３に戻る（ステップＳ１６のＮｏ）。除霜が終了していれば、この制御を終了する（ステップＳ１６のＹｅｓ）。 In the next step, it is determined whether the defrosting is finished (step S16). If the defrosting has not ended, the process returns to step S3 (No in step S16). If the defrosting is finished, this control is finished (Yes in step S16).
　本実施の形態では、戻り水温が低下した場合、水が流通する暖房パネルを増やすことによって、水温を上昇させるため、凍結することを抑制することができる。これにより、実施の形態１，２，３，４，５，６で得られる効果に加え、循環加温装置１の信頼性が向上する。なお、本実施の形態では、出口水温センサー３２ｂにより検知した戻り水温に基づいて、流路切替弁の開閉を制御しているが、入口水温センサー３２ａにより検知した水温に基づいて、流路切替弁を開閉してもよい。また、これらの入口水温センサー３２ａ及び出口水温センサー以外の水温センサーを、水回路３に設置して、この水温センサーが検知した水温に基づいて、流路切替弁を開閉することもできる。このように、水の温度が、予め決められた温度以下になった場合に、人体検知手段６ｂｈ、６ｃｈで人がいないことが検知された暖房パネル６ｂ、６ｃに加えて、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａにも水を供給するように構成してもよい。 In this embodiment, when the return water temperature is lowered, the water temperature is increased by increasing the number of heating panels through which water flows, so that freezing can be suppressed. Thereby, in addition to the effects obtained in the first, second, third, fourth, fifth and sixth embodiments, the reliability of the circulation heating apparatus 1 is improved. In the present embodiment, the opening and closing of the flow path switching valve is controlled based on the return water temperature detected by the outlet water temperature sensor 32b. However, the flow path switching valve is controlled based on the water temperature detected by the inlet water temperature sensor 32a. May be opened and closed. Further, a water temperature sensor other than the inlet water temperature sensor 32a and the outlet water temperature sensor can be installed in the water circuit 3, and the flow path switching valve can be opened and closed based on the water temperature detected by the water temperature sensor. Thus, in addition to the heating panels 6b and 6c in which it is detected that there is no person in the human body detection means 6bh and 6ch when the temperature of the water is equal to or lower than a predetermined temperature, the human body detection means 6ah You may comprise so that water may be supplied also to the heating panel 6a by which it was detected that there was a person.
　なお、本実施の形態７は、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ及び人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃ、即ち、人がいる暖房パネル６ａに隣接されていない暖房パネル６ｃの水を、除霜の熱源として使用し、次に、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂ、即ち、人がいることが検知された暖房パネル６ａに隣接された暖房パネル６ｂの水を、除霜の熱源として使用し、最後に、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの水を、除霜の熱源として使用するように構成してもよい。 The seventh embodiment is different from the heating panel 6a detected by the human body detection unit 6ah and the heating panel 6b around the heating panel 6a detected by the human body detection unit 6ah. The water of the other heating panel 6c, that is, the heating panel 6c that is not adjacent to the heating panel 6a in which a person is present is used as a heat source for defrosting, and then the presence of a person is detected by the human body detection means 6ah. The water of the heating panel 6b around the heating panel 6a, that is, the water of the heating panel 6b adjacent to the heating panel 6a detected to have a person is used as a heat source for defrosting. Finally, the human body detection means 6ah The water of the heating panel 6a detected as having a person may be used as a heat source for defrosting.
　例えば、予め決められた第３の温度と、この第３の温度よりも低い予め決められた第４の温度とを用いて、除霜運転の際、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａ及び人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂ以外の、他の暖房パネル６ｃに水を供給し、水の温度が、第３の温度以下になったときに、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａの周囲の暖房パネル６ｂに水を供給し、水の温度が、第４の温度以下になったときに、人体検知手段６ａｈで人がいることが検知された暖房パネル６ａに水を供給することができる。 For example, using the third temperature determined in advance and the fourth temperature determined in advance lower than the third temperature, it is detected by the human body detection means 6ah during the defrosting operation. Water is supplied to the other heating panel 6c other than the heating panel 6b around the heating panel 6a detected by the heating panel 6a and the human body detection means 6ah, and the temperature of the water is the third temperature. When the temperature falls below the temperature, water is supplied to the heating panel 6b around the heating panel 6a detected by the human body detection means 6ah, and the temperature of the water falls below the fourth temperature. In addition, it is possible to supply water to the heating panel 6a in which it is detected by the human body detection means 6ah that there is a person.
　これにより、除霜開始当初においては、人がいることが検知された暖房パネル６ａに水が流れないため、人の快適性を損なわない。また、水が冷たくなった後においては、人がいることが検知された暖房パネル６ａに隣接された暖房パネル６ｂの水、人がいることが検知された暖房パネル６ａの水を、この順序で除霜の熱源として使用するため、暖房パネル６ｃだけに、冷たい水が集中しない。このため、暖房パネル６ｃの凍結を抑制することもできる。このように、本実施の形態７は、人の快適性及び暖房パネルの凍結防止を両立することができる。 Thereby, at the beginning of defrosting, water does not flow to the heating panel 6a where it is detected that there is a person, so that the comfort of the person is not impaired. In addition, after the water has cooled, the water in the heating panel 6b adjacent to the heating panel 6a that is detected to have a person and the water in the heating panel 6a that has been detected to have a person in this order. Since it is used as a heat source for defrosting, cold water does not concentrate only on the heating panel 6c. For this reason, freezing of the heating panel 6c can also be suppressed. As described above, the seventh embodiment can achieve both human comfort and prevention of freezing of the heating panel.
実施の形態８．
　次に、実施の形態８に係る循環加温装置１について説明する。実施の形態１～７では、冷媒回路４に使用する冷媒は、特に指定しなかった。本実施の形態では、冷媒としてＲ３２を使用する。Ｒ３２は、Ｒ４１０Ａ等よりも、圧縮機１１の吐出温度を高くする。このため、水冷媒熱交換器１２の入口側の冷媒温度が高くなるので、この冷媒と熱交換された水は、水冷媒熱交換器１２の出口側における温度が上昇し易くなる。このため、実施の形態１，２，３，４，５，６，７で得られる効果に加え、この水が流通する暖房パネル６ａ，６ｂ，６ｃも暖かくなり、暖房パネル６ａ，６ｂ，６ｃを使用する人の快適性が向上する。また、除霜時において、圧縮機１１の吐出温度が高くなると、着霜した熱交換器と、冷媒との温度差が大きくなるため、除霜効率が向上する。このため、必要以上に除霜を行うことがないため、暖房パネル６ａ，６ｂ，６ｃの水温低下を抑制することができる。 Embodiment 8 FIG.
Next, the circulation heating apparatus 1 according to Embodiment 8 will be described. In the first to seventh embodiments, the refrigerant used for the refrigerant circuit 4 is not specified. In the present embodiment, R32 is used as the refrigerant. R32 makes the discharge temperature of the compressor 11 higher than R410A or the like. For this reason, since the refrigerant temperature on the inlet side of the water refrigerant heat exchanger 12 becomes high, the temperature of the water exchanged with the refrigerant on the outlet side of the water refrigerant heat exchanger 12 easily rises. For this reason, in addition to the effects obtained in the first, second, third, fourth, fifth, sixth and seventh embodiments, the heating panels 6a, 6b and 6c through which the water flows are also warmed, and the heating panels 6a, 6b and 6c The comfort of the user is improved. Further, when the discharge temperature of the compressor 11 is increased during defrosting, the temperature difference between the frosted heat exchanger and the refrigerant is increased, so that the defrosting efficiency is improved. For this reason, since defrosting is not performed more than necessary, it is possible to suppress a decrease in the water temperature of the heating panels 6a, 6b, 6c.
　１　循環加温装置、２　加熱源、３　水回路、４　冷媒回路、５　ポンプ、６，６ａ，６ｂ，６ｃ　暖房パネル、６ａｈ，６ｂｈ，６ｃｈ　人体検知手段、７ａ，７ｂ，７ｃ　流路切替弁、１１　圧縮機、１２　水冷媒熱交換器（第１熱交換器）、１３　膨張弁、１４　空気冷媒熱交換器（第２熱交換器）、１５　ファン、２１　制御手段、３１　タンク、３２ａ　入口水温センサー、３２ｂ　出口水温センサー、３３　吐出温度センサー、３４　バイパス回路、３４ａ　バイパス配管、３４ｂ　バイパス流量調節弁、３５　アキュームレータ、３６　四方弁、Ｃ　廊下、Ｒ１，Ｒ２，Ｒ３　部屋、Ｌ　リビング、ＤＫ　ダイニングキッチン、Ｄ　ダイニング、Ｋ　キッチン。 1 circulation heating device, 2 heating source, 3 water circuit, 4 refrigerant circuit, 5 pump, 6, 6a, 6b, 6c heating panel, 6ah, 6bh, 6ch human body detection means, 7a, 7b, 7c flow path switching valve, 11 compressor, 12 water refrigerant heat exchanger (first heat exchanger), 13 expansion valve, 14 air refrigerant heat exchanger (second heat exchanger), 15 fan, 21 control means, 31 tank, 32a inlet water temperature sensor 32b, outlet water temperature sensor, 33 discharge temperature sensor, 34 bypass circuit, 34a bypass piping, 34b bypass flow control valve, 35 accumulator, 36 four-way valve, C corridor, R1, R2, R3 rooms, L living, DK dining kitchen, D Dining, K kitchen.

Claims (22)

  1. 　水を循環させるポンプと、
    　前記ポンプによって送水される水を加熱する加熱源と、
    　前記加熱源で加熱された水が流通する複数の暖房パネルと、
    　複数の前記暖房パネル上の人の有無を検知する人体検知手段と、を有し、
    　前記水は、前記人体検知手段で人がいることが検知された前記暖房パネルと、前記人体検知手段で人がいることが検知された前記暖房パネル以外の、他の前記暖房パネルとのいずれにも供給されており、
    　前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量は、前記人体検知手段で人がいることが検知された前記暖房パネル以外の、他の前記暖房パネルに供給される水の量よりも多い
    　循環加温装置。     A pump for circulating water,
    A heating source for heating water fed by the pump;
    A plurality of heating panels through which water heated by the heating source circulates;
    Human body detecting means for detecting the presence or absence of a person on the plurality of heating panels,
    The water is in any one of the heating panel other than the heating panel in which it is detected that the person is detected by the human body detection unit and the heating panel in which the person is detected by the human body detection unit. Are also supplied,
    The amount of water supplied to the heating panel that has been detected by the human body detection means as to the other heating panel other than the heating panel that has been detected by the human body detection means. A circulating heating device that is larger than the amount of water supplied.
  2. 　前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量は、
    　前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに供給される水の量よりも多く、
    　前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに供給される水の量は、
    　前記人体検知手段で人がいることが検知された前記暖房パネル及び前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネル以外の、他の前記暖房パネルに供給される水の量よりも多い
    　請求項１記載の循環加温装置。     The amount of water supplied to the heating panel detected by the human body detection means is
    More than the amount of water supplied to the heating panel around the heating panel detected by the human body detection means,
    The amount of water supplied to the heating panel around the heating panel detected by the human body detection means is
    Supplied to the heating panel other than the heating panel around the heating panel where the human body detecting means detects the presence of a person and the human body detecting means detects the presence of a person. The circulation heating apparatus according to claim 1, wherein the circulation heating apparatus is larger than an amount of water to be added.
  3. 　電源の投入後に、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量が、前記人体検知手段で人がいることが検知された前記暖房パネル以外の、他の前記暖房パネルに供給される水の量よりも多くなる第１の状態となり、
    　前記第１の状態の後に、前記第１の状態とは異なる第２の状態となる
    　請求項１又は請求項２記載の循環加温装置。     After the power is turned on, the amount of water supplied to the heating panel detected by the human body detection means is other than the heating panel detected by the human body detection means. In a first state that is greater than the amount of water supplied to the heating panel,
    The circulating heating device according to claim 1 or 2, wherein after the first state, the second state is different from the first state.
  4. 　前記水の温度が、予め決められた温度に達したときに、前記人体検知手段で人がいることが検知された前記暖房パネル以外の、他の前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量に近づける
    　請求項１～請求項３のいずれか一項に記載の循環加温装置。     When the temperature of the water reaches a predetermined temperature, the amount of water supplied to the other heating panels other than the heating panel detected by the human body detection means, The circulating heating apparatus according to any one of claims 1 to 3, wherein the circulation heating apparatus is brought close to an amount of water supplied to the heating panel that is detected by the human body detection means.
  5. 　前記水の温度が、予め決められた第１の温度に達したときに、前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量に近づけ、
    　前記水の温度が、予め決められた前記第１の温度よりも高い第２の温度に達したときに、前記人体検知手段で人がいることが検知された前記暖房パネル及び前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネル以外の、他の前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量に近づける
    　請求項１～請求項４のいずれか一項に記載の循環加温装置。     When the temperature of the water reaches a predetermined first temperature, the amount of water supplied to the heating panel around the heating panel detected by the human body detection means is detected. , Close to the amount of water supplied to the heating panel detected by the human body detection means,
    When the temperature of the water reaches a second temperature higher than the predetermined first temperature, the human body detecting means detects that there is a person in the heating panel and the human body detecting means. The heating panel in which the human body detecting means detects the amount of water supplied to the other heating panel other than the heating panel around the heating panel in which the presence of a person is detected. The circulating heating device according to any one of claims 1 to 4, wherein the circulating warming device is close to an amount of water supplied to the water.
  6. 　前記水の水温を検知する水温センサーを有し、
    　前記水温センサーが検知した水温が、予め決められた水温に達したときに、前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量に近づける
    　請求項１～請求項５のいずれか一項に記載の循環加温装置。     A water temperature sensor for detecting the water temperature of the water;
    When the water temperature detected by the water temperature sensor reaches a predetermined water temperature, the amount of water supplied to the heating panel around the heating panel detected by the human body detection means is detected. The circulating heating device according to any one of claims 1 to 5, wherein the circulating body heating device is brought close to an amount of water supplied to the heating panel that is detected by the human body detection means.
  7. 　前記暖房パネルは、床下に設置されるものであり、
    　前記床の床温を検知する床温センサーを有し、
    　前記床温センサーが検知した床温が、予め決められた床温に達したときに、前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量に近づける
    　請求項１～請求項６のいずれか一項に記載の循環加温装置。     The heating panel is installed under the floor,
    A floor temperature sensor for detecting the floor temperature of the floor;
    When the bed temperature detected by the bed temperature sensor reaches a predetermined bed temperature, water supplied to the heating panel around the heating panel detected by the human body detection means is detected. The circulating warming device according to any one of claims 1 to 6, wherein the amount of water is made close to the amount of water supplied to the heating panel that is detected by the human body detection means.
  8. 　電源の投入後に、前記ポンプの送水量を、予め決められた分だけ低下させる
    　請求項１～請求項７のいずれか一項に記載の循環加温装置。     The circulating heating apparatus according to any one of claims 1 to 7, wherein after the power is turned on, a water supply amount of the pump is decreased by a predetermined amount.
  9. 　前記加熱源の入口側に設けられ、前記水の水温を検知する入口水温センサーを有し、
    　前記入口水温センサーが検知した水温が、予め決められた水温に達したときに、前記ポンプの送水量の低下を解除する
    　請求項８記載の循環加温装置。     An inlet water temperature sensor that is provided on the inlet side of the heating source and detects the water temperature of the water;
    The circulating heating device according to claim 8, wherein when the water temperature detected by the inlet water temperature sensor reaches a predetermined water temperature, the decrease in the water supply amount of the pump is canceled.
  10. 　前記加熱源の出口側に設けられ、前記水の水温を検知する出口水温センサーを有し、
    　前記出口水温センサーが検知した水温が、予め決められた水温に達したときに、前記ポンプの送水量の低下を解除する
    　請求項８又は請求項９記載の循環加温装置。     An outlet water temperature sensor that is provided on the outlet side of the heating source and detects the water temperature of the water;
    The circulating heating device according to claim 8 or 9, wherein when the water temperature detected by the outlet water temperature sensor reaches a predetermined water temperature, the decrease in the water supply amount of the pump is canceled.
  11. 　圧縮機、第１熱交換器、膨張手段及び第２熱交換器が、順次配管接続され、冷媒が循環する冷媒回路を有し、
    　前記加熱源は、凝縮器として作用する前記第１熱交換器によって構成されており、
    　電源の投入後又は前記第１熱交換器を蒸発器として作用させる除霜運転の終了後に、前記圧縮機から吐出される前記冷媒の温度の目標値である吐出温度目標値を、予め決められた分だけ上昇させる
    　請求項１～請求項１０のいずれか一項に記載の循環加温装置。     A compressor, a first heat exchanger, an expansion means, and a second heat exchanger, which are sequentially connected by piping and have a refrigerant circuit in which refrigerant circulates;
    The heating source is constituted by the first heat exchanger acting as a condenser;
    A discharge temperature target value, which is a target value of the temperature of the refrigerant discharged from the compressor, is determined in advance after turning on the power or after the completion of the defrosting operation in which the first heat exchanger acts as an evaporator. The circulating warming device according to any one of claims 1 to 10, wherein the circulating warming device is raised by an amount of.
  12. 　前記圧縮機の吐出側に設けられ、前記圧縮機から吐出される前記冷媒の吐出温度を検知する吐出温度センサーを有し、
    　前記吐出温度センサーが検知した吐出温度が、予め決められた吐出温度に達したときに、前記吐出温度目標値の上昇を解除する
    　請求項１１記載の循環加温装置。     A discharge temperature sensor that is provided on a discharge side of the compressor and detects a discharge temperature of the refrigerant discharged from the compressor;
    The circulating heating device according to claim 11, wherein when the discharge temperature detected by the discharge temperature sensor reaches a predetermined discharge temperature, the increase in the discharge temperature target value is canceled.
  13. 　前記除霜運転の終了後に、前記人体検知手段で人がいることが検知された前記暖房パネルに供給される水の量を、前記人体検知手段で人がいることが検知された前記暖房パネル以外の、他の前記暖房パネルに供給される水の量よりも多くする
    　請求項１１又は請求項１２記載の循環加温装置。     After completion of the defrosting operation, the amount of water supplied to the heating panel that has been detected by the human body detection means other than the heating panel that has been detected by the human body detection means The circulating heating apparatus according to claim 11 or 12, wherein the amount of water supplied to the other heating panel is increased.
  14. 　前記除霜運転の終了後に、前記ポンプの送水量を、予め決められた分だけ低下させる
    　請求項１１～請求項１３のいずれか一項に記載の循環加温装置。     The circulating heating apparatus according to any one of claims 11 to 13, wherein after the defrosting operation is finished, the amount of water supplied by the pump is reduced by a predetermined amount.
  15. 　前記第１熱交換器の出口側と、前記圧縮機の吸入側とをバイパスするバイパス回路を有する
    　請求項１１～請求項１４のいずれか一項に記載の循環加温装置。     The circulation heating apparatus according to any one of claims 11 to 14, further comprising a bypass circuit that bypasses an outlet side of the first heat exchanger and a suction side of the compressor.
  16. 　前記圧縮機の吸入側に設けられ、ガス冷媒と液冷媒とを分離するアキュームレータを有する
    　請求項１１～請求項１５のいずれか一項に記載の循環加温装置。     The circulation heating apparatus according to any one of claims 11 to 15, further comprising an accumulator that is provided on a suction side of the compressor and separates a gas refrigerant and a liquid refrigerant.
  17. 　除霜運転の際、
    　前記人体検知手段で人がいないことが検知された前記暖房パネルに前記水を供給し、前記人体検知手段で人がいることが検知された前記暖房パネルには前記水を供給しない
    　請求項１～請求項１６のいずれか一項に記載の循環加温装置。     During defrosting operation,
    The water is supplied to the heating panel that is detected by the human body detection means to be free of people, and the water is not supplied to the heating panel that is detected by the human body detection means to be human. The circulation heating apparatus as described in any one of Claims 16.
  18. 　前記水の温度が、予め決められた温度以下になった場合に、前記人体検知手段で人がいないことが検知された前記暖房パネルに加えて、前記人体検知手段で人がいることが検知された前記暖房パネルにも前記水を供給する
    　請求項１７記載の循環加温装置。     When the temperature of the water is equal to or lower than a predetermined temperature, the human body detecting means detects that there is a person in addition to the heating panel where the human body detecting means has detected that there is no person. The circulating heating apparatus according to claim 17, wherein the water is also supplied to the heating panel.
  19. 　除霜運転の際、
    　前記人体検知手段で人がいることが検知された前記暖房パネル及び前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネル以外の、他の前記暖房パネルに前記水を供給し、
    　前記水の温度が、予め決められた第３の温度以下になったときに、前記人体検知手段で人がいることが検知された前記暖房パネルの周囲の前記暖房パネルに前記水を供給し、
    　前記水の温度が、予め決められた前記第３の温度よりも低い第４の温度以下になったときに、前記人体検知手段で人がいることが検知された前記暖房パネルに前記水を供給する
    　請求項１～請求項１８のいずれか一項に記載の循環加温装置。     During defrosting operation,
    The water is detected in the other heating panel other than the heating panel detected by the human body detection means and the heating panel around the heating panel detected by the human body detection means. Supply
    When the temperature of the water is equal to or lower than a predetermined third temperature, the water is supplied to the heating panel around the heating panel detected by the human body detection means,
    When the temperature of the water is equal to or lower than a fourth temperature lower than the predetermined third temperature, the water is supplied to the heating panel detected by the human body detecting means. The circulatory heating apparatus according to any one of claims 1 to 18.
  20. 　循環する水の温度を検知する循環水温度センサーを有し、
    　前記循環水温度センサーが検知した水温が、予め決められた水温以下になった場合に、前記人体検知手段で人がいないことが検知された前記暖房パネルに加えて、前記人体検知手段で人がいることが検知された前記暖房パネルにも前記水を供給する
    　請求項１７～請求項１９のいずれか一項に記載の循環加温装置。     It has a circulating water temperature sensor that detects the temperature of the circulating water,
    When the water temperature detected by the circulating water temperature sensor is equal to or lower than a predetermined water temperature, in addition to the heating panel in which it is detected by the human body detection means that there is no person, a human is detected by the human body detection means. The circulating heating device according to any one of claims 17 to 19, wherein the water is also supplied to the heating panel that has been detected to be.
  21. 　前記冷媒がＲ３２冷媒である
    　請求項１１～請求項２０のいずれか一項に記載の循環加温装置。     The circulation heating apparatus according to any one of claims 11 to 20, wherein the refrigerant is an R32 refrigerant.
  22. 　前記人体検知手段は、サーモパイル、ひずみゲージ及び前記暖房パネルの出口側に設けられ、水温を検知する暖房パネル出口水温センサーからなる群から選択された少なくとも１個以上を用いて、前記暖房パネル上の人の有無を検知する
    　請求項１～請求項２１のいずれか一項に記載の循環加温装置。     The human body detecting means is provided on the outlet side of the thermopile, the strain gauge, and the heating panel, and uses at least one selected from the group consisting of a heating panel outlet water temperature sensor for detecting the water temperature, on the heating panel. The circulating heating apparatus according to any one of claims 1 to 21, wherein the presence or absence of a person is detected.
PCT/JP2014/052809 2013-05-08 2014-02-06 Circulation and heating apparatus WO2014181559A1 (en)

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JP2015515793A JP6207600B2 (en) 2013-05-08 2014-02-06 Circulation heating device
SE1551327A SE543218C2 (en) 2013-05-08 2014-02-06 Circulation warming apparatus comprising heating panels provided with human body detection units
GB1517904.7A GB2527013B (en) 2013-05-08 2014-02-06 Circulation warming apparatus
CN201420198578.8U CN203893283U (en) 2013-05-08 2014-04-23 Circulatory heating device

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