CN110050162A - Air conditioner - Google Patents

Air conditioner Download PDF

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Publication number
CN110050162A
CN110050162A CN201780075496.0A CN201780075496A CN110050162A CN 110050162 A CN110050162 A CN 110050162A CN 201780075496 A CN201780075496 A CN 201780075496A CN 110050162 A CN110050162 A CN 110050162A
Authority
CN
China
Prior art keywords
mentioned
refrigerant
heat exchanger
valve
piping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201780075496.0A
Other languages
Chinese (zh)
Other versions
CN110050162B (en
Inventor
高桥典夫
渡边正彦
寺内英树
村若正俊
渡边智畅
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Hitachi Johnson Controls Air Conditioning Inc
Original Assignee
Hitachi Johnson Controls Air Conditioning Inc
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Filing date
Publication date
Application filed by Hitachi Johnson Controls Air Conditioning Inc filed Critical Hitachi Johnson Controls Air Conditioning Inc
Publication of CN110050162A publication Critical patent/CN110050162A/en
Application granted granted Critical
Publication of CN110050162B publication Critical patent/CN110050162B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/875—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling heat-storage apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0096—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater combined with domestic apparatus
    • 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
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F24H4/04—Storage heaters
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/24—Arrangement of shut-off valves for disconnecting a part of the refrigerant cycle, e.g. an outdoor part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—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
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
    • F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/34—Heater, e.g. gas burner, electric air heater
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/003—Indoor unit with water as a heat sink or heat source
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0315—Temperature sensors near the outdoor heat exchanger
    • 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
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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

Abstract

In connection refrigerant switching part (20), indoor heat exchanger (51, 52) or on each refrigerant piping of heat supply water heat exchanger (61) the first connection valve (82 is set, 84, 86), in connection outdoor heat exchanger (30), indoor heat exchanger (51, 52) or on each refrigerant piping of heat supply water heat exchanger (61) the second connection valve (81 is set, 83, 85), connecting the first connection valve (82, 84, 86), indoor heat exchanger (51, 52) or on each refrigerant piping of heat supply water heat exchanger (61) refrigerant open and close valve (71 is set, 72, 73).

Description

Air conditioner
Technical field
The present invention relates to the air conditioners of compound type.
Background technique
Air conditioning apparatus, which becomes to have to be located at, to carry out the indoor indoor unit of air conditioning and outdoor outdoor unit is arranged in. In this air conditioner, especially the setting place of outdoor unit is in the direction reduced.Therefore, in air conditioner in recent years, generally Carry out the arrangement that two or more indoor units are connected relative to an outdoor unit.This air conditioner is commonly referred to as the sky of compound type Tune machine.
In general, the refrigeration operation of the indoor unit of air conditioner and heating operation are by utilizing four-way valve etc. will be from outdoor unit The flow direction for being supplied to the refrigerant of indoor unit is changed into reverse and is realized.Therefore, multiple interiors are connected in an outdoor unit In the structure of the general refrigerating cycle of the air conditioner of the compound type of machine, multiple all refrigeration operations or complete of interior function Portion is heating operation.
However, in recent years, as a ring of the countermeasure that greenhouse effects of the earth prevents, being followed using freezing identical with air conditioner The hot-water supply system (or Water heating system) of ring starts to popularize.This hot-water supply system becomes warm water to be heated to water, No matter therefore requiring to function as heating system in hot-water supply system winter or 1 year summer.
In the case where this hot-water supply system to be assembled into the air conditioner of compound type, especially in summer, need one Partial indoor unit plays a role as refrigeration system, and a part of indoor unit is played as hot-water supply system (i.e. heating system) Effect.It therefore, can not be simple in the form of indoor unit simply replaced by hot-water supply system in the air conditioner of compound type Ground is assembled.In order to which hot-water supply system to be assembled into the air conditioner of compound type, under being required in the structures such as the refrigerating cycle A variety of time.In addition, the simple displacement of indoor unit refers to the room of the refrigerant piping of hot-water supply system and room conditioning Interior machine is identically connected to the refrigerant piping for being connected with the purpose of indoor unit of room conditioning.
For example, being disclosed the refrigerant from outdoor unit 10 in Fig. 1 of patent document 1 using dividing cell 20a Be separated into the refrigerant piping connecting with indoor unit 30 and with refrigerant piping that thermal storage water tank 40 connect and the supplying hot water of structure The example of air conditioner 1a.In addition, disclosing the gas refrigerant that will be connected out from outdoor unit 1 in Fig. 2 of patent document 2 Piping is separated into the discharge gas pipe 35 connecting with heat supply water unit 3 and the gas pipe connecting with indoor unit 2 36 and structure At heat supply water air-conditioning system SS example.
Existing technical literature
Patent document 1: Japanese Unexamined Patent Publication 2011-163654 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2013-130344 bulletin
Summary of the invention
Problems to be solved by the invention
In supplying hot water air conditioner 1a disclosed in patent document 1, in order to which hot-water supply system (thermal storage water tank 40) is connected In outdoor unit 10, need to add dividing cell 20a again.In addition, according to the knot of outdoor unit 1 disclosed Patent Document 2 Structure prepares the discharge gas pipe 35 connecting with heat supply water unit 3 and the gas pipe 36 connecting with indoor unit 2 respectively, with The structure of the outdoor unit of the air conditioner of general compound type is different.It therefore, can not in technology disclosed Patent Document 2 The additional hot-water supply system in the form of the outdoor unit of the air conditioner of the general compound type of substitute simply.In this way, in existing skill There is the air-conditioning that hot-water supply system can not be simply assembled into compound type in the form of indoor unit simply replaced in art The project of machine.
In view of the project of above prior art, it is an object of the present invention to connect more interiors on an outdoor unit In the air conditioner of the compound type of machine, a kind of air-conditioning that hot-water supply system can be connected as the simple displacement of indoor unit is provided Machine.
The method used for solving the problem
Air conditioner of the invention has: compressing the compressor of refrigerant；It is carried out between above-mentioned refrigerant and outdoor air The outdoor heat exchanger of heat exchange；Multiple indoor heat exchangers of heat exchange are carried out between above-mentioned refrigerant and room air； It is flowed in the refrigerant piping of connection above-mentioned compressor, above-mentioned outdoor heat exchanger and above-mentioned multiple indoor heat exchangers Above-mentioned refrigerant the refrigerant switching part that switches over of flow direction；Setting is connecting above-mentioned refrigerant switching part and above-mentioned First connection valve of the refrigerant piping connection on the first refrigerant piping of multiple indoor heat exchangers；It is arranged in connection State that the refrigerant piping in the second refrigerant piping of outdoor heat exchanger and above-mentioned multiple indoor heat exchangers connects the Two connection valves；Above-mentioned first connection valve on above-mentioned first refrigerant piping is each with above-mentioned multiple indoor heat exchangers Between refrigerant flow path opening and closing refrigerant open and close valve.
Invention effect
According to the present invention, in the air conditioner of compound type, can connect hot-water supply system as the simple substitute of indoor unit It connects.
Detailed description of the invention
Fig. 1 is the figure for showing schematically the example of the refrigerating cycle of air conditioner of first embodiment.
Fig. 2 be switching main valve in each operation mode for indicate the air conditioner of first embodiment, refrigerant open and close valve with And the figure of the example of the open and close control of refrigerant adjustment valve.
Fig. 3 is the figure for showing schematically the example of the refrigerating cycle of air conditioner of second embodiment.
Fig. 4 is the figure for showing schematically the example of the refrigerating cycle of air conditioner of third embodiment.
Fig. 5 is the figure for showing schematically the example of the refrigerating cycle of air conditioner of the 4th embodiment.
Specific embodiment
In the following, suitably referring to attached drawing explains mode for carrying out the present invention (hereinafter referred to as " embodiment ") in detail. In addition, in the various figures, marking identical symbol for common part and the repetitive description thereof will be omitted.
" first embodiment "
Fig. 1 is the figure for showing schematically the example of the refrigerating cycle of air conditioner S1 of first embodiment of the invention.Such as Shown in Fig. 1, air conditioner S1 is configured to have compressor 10, refrigerant switching part 20, outdoor heat exchanger 30, outdoor draft fan 31, refrigerant adjustment valve 41~43, indoor heat exchanger 51,52, heat supply water tank 60, heat supply water heat exchanger 61, refrigerant are opened Valve closing 71~73, connection valve 81~86, control unit 90, each temperature detector 91~94 and constitute.In addition, in the various figures, mutually The solid line for connecting each component indicates to become the refrigerant piping (also identical in Fig. 3 figure below) of the runner of refrigerant.
Air conditioner S1 shown in FIG. 1 is that have multiple indoor unit (rooms relative to an outdoor unit (outdoor heat exchanger 30) The air conditioner of inside heat exchanger 51,52) so-called compound type.
In air conditioner S1, compressor 10 sucks refrigerant from sucting and the refrigeration of high temperature and pressure is discharged from discharge unit Agent.Here, the sucting (in Fig. 1, the refrigerant piping interconnecting piece in the left side of compressor 10) of compressor 10 passes through refrigerant Piping is connect with the mouth d of refrigerant switching part 20.In addition, the discharge unit of compressor 10 (is the downside of compressor 10 in Fig. 1 Refrigerant piping interconnecting piece) it is connect by refrigerant piping with the mouth a of refrigerant switching part 20.In addition, in the row of compressor 10 The discharge temperature detector 91 of the temperature (discharge temperature) for the refrigerant that setting detection in portion's is discharged from compressor 10 out.By discharge temperature The detection signal input control portion 90 that detector 91 detects is spent, control unit 90 is with the discharge temperature (inspection of discharge temperature detector 91 Testing temperature) become it is scheduled discharge target temperature mode control compressor 10.
Refrigerant switching part 20 be have switching main valve 21, as refrigerant piping interconnecting piece four mouth a~d four Port valve.As refrigerant switching part 20, such as it can make to switch the sliding of main valve 21 using the control by energization etc. and can switch respectively The solenoid valve (so-called disengaging type solenoid valve) of the connection relationship of mouth a~d.Specifically, being located in switching main valve 21 by Fig. 1's In the case where the position that solid line indicates, mouth a is connected to mouth b, and mouth c is connected to mouth d.In addition, switching main valve 21 be located at by In the case where the position that the dotted line of Fig. 1 indicates, mouth a is connected to mouth c, also, mouth b is connected to mouth d.In refrigerant switching part 20 The connection relationship of each mouth a~d is that the position of switching main valve 21 is controlled by control unit 90.
Outdoor heat exchanger 30 constitute air conditioner S1 outdoor unit a part, inflow refrigerant and outdoor air it Between carry out heat exchange.Here, the refrigerant piping interconnecting piece of a side of outdoor heat exchanger 30 (is outdoor heat exchange in Fig. 1 The refrigerant piping interconnecting piece of the upside of device 30) it is connect by refrigerant piping with the mouth b of refrigerant switching part 20.In addition, room The refrigerant piping interconnecting piece of another party of outer heat-exchanger 30 (is the refrigerant of the downside of outdoor heat exchanger 30 in Fig. 1 Tubing connection portion) it is connect by the refrigerant piping with branch with refrigerant adjustment valve 41~43.
In addition, the outdoor unit of air conditioner S1 has for promoting refrigerant in outdoor heat exchanger 30 and outdoor air The outdoor draft fan 31 of heat exchange.Outdoor draft fan 31 controls its air output (rotation speed) by control unit 90.In addition, in room Nearby (upstream side of the direction 31a of the flow of outside air of outdoor heat exchanger 30) sensing chamber is arranged in the suction inlet of outer pressure fan 31 The outside air temperature detector 92 of the temperature of outer air.In addition, heat exchange outside sensing chamber is arranged on outdoor heat exchanger 30 The outdoor heat exchanger temperature detector 93 of the temperature of device 30.In addition, being handed over by outside air temperature detector 92 and outdoor heat Each detection signal input control portion 90 that parallel operation temperature detector 93 detects.
Refrigerant adjustment valve 41~43 is the valve that can be carried out opening and closing and aperture control.Here, refrigerant adjusts valve 41~43 A side refrigerant piping interconnecting piece (in Fig. 1, refrigerant adjust valve 41~43 left side refrigerant piping interconnecting piece) It is connect by refrigerant piping with outdoor heat exchanger 30.In addition, the refrigerant piping of another party of refrigerant adjustment valve 41,42 Interconnecting piece (adjusting the refrigerant piping interconnecting piece of the downside of valve 41,42 for refrigerant in Fig. 1) is via connection valve 81,83 and leads to Refrigerant piping is crossed to connect with indoor heat exchanger 51,52.In addition, the refrigerant piping of another party of refrigerant adjustment valve 43 connects Socket part (adjusting the refrigerant piping interconnecting piece of the downside of valve 43 for refrigerant in Fig. 1) is via connection valve 85 and passes through refrigerant Piping is connect with the heat supply water heat exchanger 61 of heat supply water tank 60.In addition, refrigerant adjustment valve 41~43 opening and closing and aperture by Control unit 90 controls.
Indoor heat exchanger 51,52 constitutes a part of the indoor unit of air conditioner S1, in the refrigerant and Interior Space of inflow Heat exchange is carried out between gas.Here, the refrigerant piping interconnecting piece of a side of indoor heat exchanger 51,52 is (indoor in Fig. 1 The refrigerant piping interconnecting piece of the upper left of heat exchanger 51,52) via connection valve 81,83 refrigeration is connected to by refrigerant piping Agent adjusts valve 41,42.In addition, the refrigerant piping interconnecting piece of a side of the heat supply water heat exchanger 61 of heat supply water tank 60 is (in Fig. 1 In, the refrigerant piping interconnecting piece of the upper left of heat supply water heat exchanger 61) it is connected to via connection valve 85 by refrigerant piping Refrigerant adjusts valve 43.
In addition, another party of indoor heat exchanger 51,52 refrigerant piping interconnecting piece (in Fig. 1, indoor heat exchanger 51, the refrigerant piping interconnecting piece of 52 lower-left) matched via refrigerant open and close valve 71,72 and connection valve 82,84 by refrigerant Pipe is connected to the mouth c of refrigerant switching part 20.In addition, the refrigerant of another party of the heat supply water heat exchanger 61 of heat supply water tank 60 Tubing connection portion (in Fig. 1, the refrigerant piping interconnecting piece of the lower-left of heat supply water heat exchanger 61) is via refrigerant open and close valve 73 and connection valve 86 the mouth c of refrigerant switching part 20 is connected to by refrigerant piping.
In addition, in Fig. 1, illustration omitted, but each indoor unit has for being taken into room air into its cabinet and will be by Indoor heat exchanger 51,52 heat exchanges fan from (having been reconciled by air) air to indoor blowout.
In addition, air conditioner S1 has the heat supply water tank 60 with heat supply water heat exchanger 61.In the inside of heat supply water tank 60 Container water (hot water), the heater box and progress heat exchange between the refrigerant of high temperature and case water of heat supply water heat exchanger 61 Water.In this case, heat supply water tank 60 boosts internal case for example by flowing into tap water from the downside of heat supply water tank 60 Water is supplied directly to supplying hot water terminal (such as tap etc.) from the upside of heat supply water tank 60 by hot water.In addition, case water does not limit In hot water.
As described above, the refrigerant piping interconnecting piece of a side of heat supply water heat exchanger 61 is via connection valve 85 and passes through system Cryogen pipe arrangement is connected to refrigerant adjustment valve 43.In addition, the refrigerant piping interconnecting piece of another party of heat supply water heat exchanger 61 The mouth c of refrigerant switching part 20 is connected to via refrigerant open and close valve 73 and connection valve 86 and by refrigerant piping.In addition, The case temperature detector 94 for detecting the temperature of stored case water is provided in heat supply water tank 60.It is examined by case temperature detector 94 The detection signal measured is input to control unit 90.
In addition, in the example in fig 1, heat supply water heat exchanger 61 is configured to, refrigerant piping one side and heat supply water tank 60 Canister periphery contact wind on one side.Also, heat supply water tank 60 and heat supply water heat exchanger 61 it is not shown every Hot material covering.Therefore, the refrigerant for flowing into heat supply water heat exchanger 61 can pass through the refrigerant of heat supply water heat exchanger 61 Heat exchange is carried out between piping and the canister and the case water that is stored in heat supply water tank 60 of heat supply water tank 60.
In addition, the construction of heat supply water heat exchanger 61 is not limited to construction shown in the example of Fig. 1.For example, it is also possible to make to supply The refrigerant piping of hot water heat exchanger 61 is from the container side of heat supply water tank 60 to container internal run-through, in heat supply water tank 60 Refrigerant piping is configured inside container.In this case, the refrigerant for flowing into heat supply water heat exchanger 61 is handed over by heat supply hydro-thermal The refrigerant piping of parallel operation 61 can carry out heat exchange with the case water being stored in heat supply water tank 60.In addition, at this point it is possible to making to match Setting the refrigerant piping in the inside of heat supply water tank 60 is dual pipe, protects the refrigerant piping of heat supply water heat exchanger 61.
Alternatively, being configured to have the heat supply water heat exchanger 61 not androgynous with heat supply water tank 60, from heat supply water tank 60 Lower part outflow runner from heat supply water heat exchanger 61 to the top of heat supply water tank 60 that circulate via of case water and setting in the stream Pump on road.
As shown in Figure 1, being connected to the refrigeration of the mouth c of refrigerant switching part 20 in the air conditioner S1 of first embodiment Agent piping is multiple refrigerant pipings in branched halfway, each refrigerant piping and indoor heat exchanger 51,52 after branch and Heat supply water heat exchanger 61 connects.Also, each refrigerant piping after branch (hereinafter referred to as match by the first branched-refrigerant Pipe) on be arranged connection valve 82,84,86.In addition, in the piping of each first branched-refrigerant above and to connection valve 82,84,86 and room Be arranged on the refrigerant piping that inside heat exchanger 51,52 or heat supply water heat exchanger 61 are attached refrigerant open and close valve 71,72, 73。
Equally, the refrigerant piping interconnecting piece for being connected to a side of outdoor heat exchanger 30 (is outdoor heat exchange in Fig. 1 The refrigerant piping interconnecting piece of the downside of device 30) refrigerant piping in branched halfway be multiple refrigerant pipings, after branch Each refrigerant piping is connected to indoor heat exchanger 51,52 or heat supply water heat exchanger 61.Also, each system after branch Connection valve 81,83,85 is set in cryogen pipe arrangement (piping of hereinafter referred to as the second branched-refrigerant).In addition, in each second branch The position setting refrigerant tune for being located proximate to outdoor heat exchanger 30 on refrigerant piping and than setting connection valve 81,83,85 Whole valve 41,42,43.
Therefore, connection valve 81~86 can be known as cutting outdoor unit (compressor 10, outdoor heat exchanger of air conditioner S1 30, refrigerant switching part 20 etc.) and indoor unit (indoor heat exchanger 51,52, heat supply water tank 60 etc.) refrigerant piping company Socket part position.It therefore, can will be with indoor heat exchanger 51,52 by connection valve 81~86 in the first embodiment Indoor unit and hot-water supply system with heat supply water heat exchanger 61 are identically connected to outdoor unit.
That is, in the first embodiment, indoor heat exchanger 51,52 or heat supply water heat exchanger 61 can will be connected to Refrigerant piping is identically connected to either one or two of group 81,82,83,84,85,86 of connection valve.That is, in the first embodiment party In the air conditioner S1 of the compound type of formula, the hot-water supply system that can will be provided with heat supply water heat exchanger 61, which is used as, has Indoor Thermal friendship The simple displacement of the indoor unit of parallel operation 51,52 is attached.
In addition, in the first embodiment, refrigerant adjustment valve 41~43 is being connected to indoor unit 51,52 or heat supply hydro-thermal On each refrigerant piping of exchanger 61, it is configured to lean on than connection valve 81,83,85 and is handed over from indoor unit 51,52 or heat supply hydro-thermal 61 far away location of parallel operation.That is, refrigerant adjustment valve 41~43 is set to outdoor pusher side.But it is equipped with refrigerant and adjusts valve 41 ~43 position is not defined in outdoor pusher side, can also be set to indoor pusher side.That is, refrigerant adjustment valve 41~43 is being connected to room On each refrigerant piping of interior machine 51,52 or heat supply water heat exchanger 61, it can be set away from indoor unit 51,52 or heat supply The distance of water heat exchanger 61 is than the close position of connection valve 81,83,85.
In addition, refrigerant open and close valve 71~73 is not required, but first in the air conditioner of general compound type In embodiment, be imported into the relationship for the hot-water supply system for having heat supply water heat exchanger 61.But due to being refrigeration Agent open and close valve 71~73 is connected to the structure of connection valve 82,84,86, therefore even if installs refrigerant using general indoor unit Open and close valve 71~73 also can easily be done.Therefore, the group 81 that heat supply water heat exchanger 61 is connected to connection valve, 82, 83, in the case where either one or two of 84,85,86, for the structure that refrigerant open and close valve 71~73 is arranged, it is being not attached to any one In the case of, it can easily be done to be not provided with the structure of refrigerant open and close valve 71~73.
Then, the detailed of the various operatings of air conditioner S1 is explained in detail while referring to FIG. 1 and FIG. 2.Wherein, Fig. 2 Be switching main valve 21 in each operation mode for indicate the air conditioner S1 of first embodiment, refrigerant open and close valve 71~73 and Refrigerant adjusts the figure of the open and close control of valve 41~43.In addition, in Fig. 1, the solid line that is indicated near each refrigerant piping Arrow indicate the flow direction of refrigerant in refrigeration operation etc., the arrow of dotted line indicates the refrigeration in heating operation etc. The flow direction of agent.
As shown in Fig. 2, air conditioner S1 substantially has the refrigeration operation to freeze to interior, is heated to interior Three operation modes of heating operation and the boiling operating that the case water in heat supply water tank 60 is heated.In more detail, Refrigeration operation includes the preferential refrigeration operation of boiling heated in refrigeration operation to case water, and system is included in heating operation The heating boiling operating (the preferential heating operation of boiling in figure) that case water is heated in heat run.In addition, being transported in heating Turn in include in heating operation remove be attached to outdoor heat exchanger 30 frost usual defrosting operating, comfortably defrost operate with And quickly defrosting operating, it include same comfortable defrosting operating in boiling operating.
In addition, these operation modes are by the user of air conditioner S1, manager by being connected to the control plane of control unit 90 Plate, remote control device setting.Also, control unit 90 adjusts valve according to set operation mode control switching main valve 21, refrigerant 41~43 and refrigerant open and close valve 71~73 opening and closing.
<refrigeration operation>
Heat exchanger 51,52 is control unit 90 in the case that refrigeration is connected, heat supply water heat exchanger 61 is disconnection indoors Air conditioner S1 is set as cooling operation pattern.At this point, control unit 90 operates compressor 10 and outdoor draft fan 31, will make The switching main valve 21 of cryogen switching part 20 is set in the position shown in solid of Fig. 1.In addition, control unit 90 opens refrigerant opening and closing Valve 71~73 closes refrigerant and adjusts valve 43, carries out aperture control to refrigerant adjustment valve 41,42.
In addition, here, the both sides of indoor heat exchanger 51,52 be refrigeration connect, even if one side be refrigeration connect, Heat supply water heat exchanger 61 is in the case where disconnecting, and control unit 90 also sets cooling operation pattern to air conditioner S1.But at this In the case of, the refrigerant adjustment valve 41,442 connecting with the indoor heat exchanger 51,52 of a side of refrigeration access failure is closing.This Kind situation not only in refrigeration operation, also generates, but in the following description of this specification in refrigeration operation, in order to avoid The complexity of explanation, indoor heat exchanger 51,52 both sides be refrigeration connect or refrigeration disconnect or both sides be heating connect or Heating disconnects.
In the refrigeration operation, from compressor 10 be discharged high temperature and pressure refrigerant via refrigerant switching part 20 mouth A, b flows into the outdoor heat exchanger 30 functioned as condenser, heat release and with outdoor air progress heat exchange.By room 30 heat release of outer heat-exchanger and the refrigerant to have liquefied flow into the refrigerant functioned as expansion valve and adjust valve 41,42, quilt Decompression, becomes the refrigerant of the gas-liquid mixed of low-temp low-pressure, by utilizing the indoor heat exchanger functioned as evaporator 51,52 heat exchange is carried out with room air and is absorbed heat.At this point, by by refrigerant heat absorption and the room air that has dropped of temperature from Indoor unit is blown out to interior, and interior is freezed.Also, absorbed heat by indoor heat exchanger 51,52 and the refrigerant that has gasified via Mouth c, d of refrigerant switching part 20 are inhaled into compressor 10.
Air conditioner S1 can be by above refrigeration operation to the interior for being provided with indoor unit (indoor heat exchanger 51,52) Freeze.
<boil preferential refrigeration operation>
In refrigeration operation, if supplying hot water exchanger 61 is connected, air conditioner S1 is set as boiling preferentially by control unit 90 Cooling operation pattern.At this point, control unit 90 disconnects indoor heat exchanger 51,52 and becomes standby mode, refrigerant is cut The switching main valve 21 for changing portion 20 is set in the position as shown in the dotted line of Fig. 1, also, opens refrigerant open and close valve 73.In the feelings Under condition, heat supply water heat exchanger 61 is flowed by refrigerant open and close valve 73 using the refrigerant that compressor 10 becomes high temperature and pressure, It is pressurizeed to the case water in heat supply water tank 60, warm water, itself liquefaction.Later, refrigerant adjusts valve 43 by refrigerant Aperture control after being depressurized, flows into outdoor heat exchanger 30, absorbs heat and gasify.
In addition, therefore, the refrigerant of high temperature may not flow into indoor heat exchange at this point, refrigerant open and close valve 71,72 is to close Device 51,52.Therefore, can inhibit boiling operating bring by carry out case water to the adverse effect of indoor refrigeration (room temperature Rise).In addition, due to opening refrigerant adjustment valve 41,42, refrigerant can be efficiently used in the operating Heat supply water heat exchanger 61.
However, in general, the range of the temperature variation of indoor refrigeration is 27~35 DEG C or so, and room server is in refrigeration Temperature variation range be 8~10 DEG C or so.In addition, the range of the temperature variation in indoor heating is 0~20 DEG C.Any In the case where, the range of temperature variation converges within 30 DEG C.On the other hand, the temperature in the case water of heat supply water tank 60 becomes Dynamic range is, for example, 0~55 DEG C, compared with indoor refrigeration, indoor heating, is significantly broadened.Therefore, to heat supply water tank 60 In the boiling operating that interior case water is heated, control unit 90 is set as the discharge target temperature of compressor 10 to compare refrigeration operation When, it is high when heating operation.
If by the control of the preferential refrigeration operation of above boiling, the temperature of the case water of heat supply water tank 60 reaches scheduled Target boiling temperature, the then control that control unit 90 operates boiling stop, and release the standby of indoor heat exchanger 51,52, again Restore to the control of common refrigeration operation.
In addition, detailed description is omitted, but in the preferential refrigeration operation that boils, due to substantially stopping refrigeration air-conditioner Only, therefore the case where damaging indoor comfort is also considered.Therefore, in order not to damage indoor comfort, setting is boiled The upper limit time of operating, even more than the upper limit time and the case where the temperature of case water is not up to scheduled target boiling temperature Under, boiling operating can be made to stop.If stopping boiling operating, refrigeration operation is reverted to, but stop boiling operating In the case of have, auxiliary heater (heating mechanism), which is arranged, in heat supply water tank 60 can replace by being powered to auxiliary heater The boiling of case water.
In this way, the air conditioner S1 of first embodiment is boiled in which can inhibit the influence of refrigeration operation, indoor comfort Rise operating.
<heating operation>
Heat exchanger 51,52 is control unit 90 in the case that heating is connected, heat supply water heat exchanger 61 is disconnection indoors Air conditioner S1 is set as heating mode of operation.At this point, control unit 90 operates compressor 10 and outdoor draft fan 31, will make The switching main valve 21 of cryogen switching part 20 is set in by the position of the dotted line expression of Fig. 1.It is opened in addition, control unit 90 opens refrigerant Valve closing 71,72 closes refrigerant open and close valve 73, carries out aperture control to refrigerant adjustment valve 41,42, opens refrigerant and adjust valve 43。
In the heating operation, from compressor 10 be discharged high temperature and pressure refrigerant via refrigerant switching part 20 mouth A, c flows into the indoor heat exchanger 51,52 functioned as condenser, and by carrying out heat exchange with room air, liquefaction is simultaneously Heat dissipation.At this point, interior is blown out to from indoor unit by the room air risen using the heat dissipation temperature from refrigerant, to room Inside heated.Also, the refrigerant to have been radiated by indoor heat exchanger 51,52 flows into the refrigeration functioned as expansion valve Agent adjusts valve 41,42, becomes the refrigerant of the gas-liquid mixed of low-temp low-pressure, by the outdoor heat functioned as evaporator Exchanger 30 and outdoor air carry out heat exchange, absorb heat and gasify.In addition, the system absorbed heat, gasified by outdoor heat exchanger 30 Cryogen is inhaled into compressor 10 via mouth b, d of refrigerant switching part 20.
In this way, the air conditioner S1 of first embodiment by carry out heating operation, can be provided with indoor unit (Indoor Thermal hand over Parallel operation 51,52) interior are heated.
(variation of heating operation)
In general, when heating operation starts, since the discharge temperature of compressor 10 is low, it is supplied to Indoor Thermal friendship The temperature of the refrigerant of parallel operation 51,52 is lower.Therefore, air conditioner S1 becomes the low shape of heating capacity when heating operation starts State.Therefore, in the variation, temperature (the box temperature degree of case water of the control unit 90 when heating operation starts in heat supply water tank 60 The detection temperature of detector 94) be scheduled first case coolant-temperature gage (such as 15 DEG C) more than in the case where, open refrigerant opening and closing Valve 73 carries out aperture control to refrigerant adjustment valve 43.
In this case, at least part (can also be all) for the refrigerant being discharged from compressor 10 is handed in heat supply hydro-thermal It is flowed in parallel operation 61.That is, refrigerant can be made to warm using the heat of the case water in heat supply water tank 60.Therefore, can make to be supplied to room The temperature of the refrigerant of inside heat exchanger 51,52 is got higher rapidly, can provide the requirement response of the heating operation relative to user The good air conditioner S1 of property.
In addition, in above heating operation, in temperature (the discharge temperature detector for the refrigerant being discharged from compressor 10 91 detection temperature) be scheduled discharge temperature (such as 20 DEG C) more than in the case where, control unit 90 can be transferred to closing system Cryogen open and close valve 73, the common heating operation for opening refrigerant adjustment valve 43.
In addition, temperature indoors is temperature (the box temperature degree of scheduled setting room temperature and the case water in heat supply water tank 60 The detection temperature of detector 94) be scheduled second case coolant-temperature gage (such as than high 40 DEG C of setting room temperature) or more in the case where, Control unit 90 can carry out following such control.That is, control unit 90 make compressor 10 and outdoor draft fan 31 to stop, By the switching main valve 21 of refrigerant switching part 20 be set in by Fig. 1 dotted line expression position, close refrigerant adjustment valve 41~ 43 are, open refrigerant switching valve 71~72.
In the case where having carried out such control, the flowing of the refrigerant in refrigerant piping stops.But from heat supply Water heat exchanger 61 via connection valve 86 reach refrigerant switching part 20 mouth c refrigerant piping and from indoor heat exchanger 51, the refrigerant piping of the 52 mouth c for reaching refrigerant switching part 20 via connection valve 82,84 becomes hot linked state.That is, for The heat of the case water of boiler 60 by the free convection of the refrigerant in refrigerant piping, the heat transfer of refrigerant piping, It is supplied to indoor heat exchanger 51,52.Therefore, the indoor temperature for heating object can be inhibited to decline.
<heating, boiling operating>
In heating, boiling operating, control unit 90 operates compressor 10 and outdoor draft fan 31, and refrigerant is switched The switching main valve 21 in portion 20 is set in by the position of the dotted line expression of Fig. 1, refrigerant open and close valve 71~73 is opened, to refrigerant tune Whole valve 41~43 carries out aperture control.
The refrigerant for the high temperature and pressure being discharged from compressor 10 is opened via mouth a, c and refrigerant of refrigerant switching part 20 Valve closing 73 flows into the heat supply water heat exchanger 61 functioned as condenser, by carrying out heat with the case water in heat supply water tank 60 It exchanges and radiates.At this point, (being boiled by the heat released from refrigerant to being heated for the case water in boiled water tank 60 It rises).In addition, the refrigerant for the high temperature and pressure being discharged from compressor 10 also flows into the refrigerant condenser performance as high temperature and pressure The indoor heat exchanger 51,52 of function is radiated and carrying out heat exchange with room air.At this point, warm from refrigerant heat dissipation The room air that degree rises is blown out to interior from indoor unit, thus to indoor carry out air conditioning (heating).It is handed over by heat supply hydro-thermal Parallel operation 61, indoor heat exchanger 51,52 radiate and the refrigerant to have liquefied separately flows into the refrigeration functioned as expansion valve Agent adjusts valve 41~43, becomes the refrigerant of low-temp low-pressure, by the outdoor heat exchanger 30 functioned as evaporator In carry out heat exchange with outdoor air and absorb heat and gasify.Also, the refrigerant for being absorbed heat and having been gasified by outdoor heat exchanger 30 Compressor 10 is inhaled into via mouth b, d of refrigerant switching part 20.
In this way, the air conditioner S1 of first embodiment is by being heated, operating of boiling, it is (indoor to indoor unit is provided with Heat exchanger 51,52) interior are heated, and the case water in heat supply water tank 60 can be made to boil using a part of condenser It rises.
Later, control unit 90 is transferred to common heating fortune when receiving the open command of heat supply water heat exchanger 61 Turn.
<boiling operating>
In boiling operating, control unit 90 operates compressor 10 and outdoor draft fan 31, by refrigerant switching part 20 Switching main valve 21 be set in by Fig. 1 dotted line expression position.Also, control unit 90 closes refrigerant open and close valve 71,72, beats Refrigerant adjustment valve 41,42 is opened, refrigerant open and close valve 73 is opened, aperture control is carried out to refrigerant adjustment valve 43.
The refrigerant for the high temperature and pressure being discharged from compressor 10 is opened via mouth a, c and refrigerant of refrigerant switching part 20 Valve closing 73 flows into the heat supply water heat exchanger 61 functioned as condenser, by carrying out with for the case water in boiled water tank 60 Heat exchange and radiate.At this point, being heated (boiling) to for the case water in boiled water tank 60 by from the exothermic heat of refrigerant. The refrigerant to be radiated by heat supply water heat exchanger 61 flows into the refrigerant functioned as expansion valve and adjusts valve 43, becomes low temperature The refrigerant of low pressure is inhaled and carrying out heat exchange with outdoor air in the outdoor heat exchanger 30 functioned as evaporator Heat.Also, the refrigerant to have been absorbed heat by outdoor heat exchanger 30 is inhaled into compressor via mouth b, d of refrigerant switching part 20 10。
In addition, closing refrigerant open and close valve 71,72, refrigerant is not indoors in heat exchanger 51,52 in boiling operating Flowing, therefore the rising of indoor temperature can be inhibited.In addition, adjusting valve 41,42 by opening refrigerant, it can inhibit hot indoors The unwanted refrigerant storage that exchanger 51,52 generates.
In this way, the air conditioner S1 of first embodiment by carrying out boiling operating, can not be freezed or be heated to interior Ground makes the case water boiling in heat supply water tank 60.
<defrosting operating>
In heating operation, heating boiling operating and boiling operating, evaporator is used as by outdoor heat exchanger 30 It functions, refrigerant heat absorption cools down outdoor air.Therefore, temperature high in the humidity of outdoor air and outdoor air Spend it is low in the case where, sometimes frost be attached to outdoor heat exchanger 30 and decline the heat exchange performance of outdoor heat exchanger 30.Cause This, air conditioner S1 can be carried out the defrosting operating (going white operating) for removing accompanying frost.
Temperature of the control unit 90 based on the outdoor heat exchanger 30 detected by outside air temperature detector 92 and by room The temperature for the outdoor air that outer heat-exchanger temperature detector 93 detects, such as by calculating outdoor dew point etc., infer attachment In outdoor heat exchanger 30 frost amount.Also, control unit 90 for example inferred frost amount be more than as scheduled threshold Value frost amount in the case where, execute defrosting operating.
In the air conditioner S1 of first embodiment, the defrosting operating of three modes as shown below can be carried out.
(usually defrosting operating)
In usual defrosting operating, control unit 90 operates compressor 10, makes the switching main valve 21 of refrigerant switching part 20 As the position shown in solid of Fig. 1, opens refrigerant open and close valve 71,72 and refrigerant adjusts valve 41,42, close refrigerant and open Valve closing 73 and refrigerant adjust valve 43.
From compressor 10 be discharged discharging refrigerant via refrigerant switching part 20 mouth a, b inflow outdoor heat exchanger 30, heat release and with outdoor air progress heat exchange.At this point, radiating by refrigerant to outdoor air, it is attached to outdoor heat The frost of exchanger 30 melts.Also, by the refrigerant of 30 heat release of outdoor heat exchanger via refrigerant adjust valve 41,42 and Heat exchange is carried out with room air in indoor heat exchanger 51,52 and is absorbed heat.In addition, by absorbing heat to room air, room Interior temperature decline.Also, the refrigerant to have been absorbed heat by indoor heat exchanger 51,52 is via mouth c, d of refrigerant switching part 20 It is inhaled into compressor 10.
In this way, the air conditioner S1 of first embodiment can be attached to outdoor heat exchange by carrying out usually defrosting operating removing The frost of device 30.
(comfortable defrosting operating)
Comfortable defrosting operates at the temperature of the case water in heat supply water tank 60 as the feelings more than scheduled temperature (such as 20 DEG C) Under condition or the temperature of case water is the situation of the discharge temperature (the detection temperature of discharge temperature detector 91) of compressor 10 or more It is lower to be selected.In addition, scheduled temperature said here can be with first case water temperature in the variation of above-mentioned heating operation Degree, second case coolant-temperature gage is identical can also be different.
Comfortable defrosting, which is run through, makes the refrigerant being discharged from compressor 10 flow into heat supply water heat exchanger 61 without flowing into Indoor heat exchanger 51,52, it is different from usual defrosting operating.That is, control unit 90 transports compressor 10 in comfortable defrosting operating Turn, the switching main valve 21 of refrigerant switching part 20 is set in the position shown in solid by Fig. 1, opens refrigerant open and close valve 73 And refrigerant adjusts valve 43, closes refrigerant open and close valve 71,72 and refrigerant adjusts valve 41,42.
From compressor 10 be discharged discharging refrigerant via refrigerant switching part 20 mouth a, b inflow outdoor heat exchanger 30, it is radiated and carrying out heat exchange with outdoor air.At this point, radiating by refrigerant to outdoor air, it is attached to outdoor heat The frost of exchanger 30 melts.Also, the refrigerant to have been radiated by outdoor heat exchanger 30 is flowed into via refrigerant adjustment valve 43 to be made For the heat supply water heat exchanger 61 that heating source functions, and carrying out heat exchange with the case water of the high temperature in heat supply water tank 60 It is heated.In addition, by absorbing heat to case water, the temperature decline of the case water in heat supply water tank 60.Added by heat supply water heat exchanger 61 The refrigerant of heat via mouth c, d of refrigerant open and close valve 73 and refrigerant switching part 20 is inhaled into compressor 10.
In this way, the air conditioner S1 of first embodiment can be attached to outdoor heat exchange by carrying out comfortable defrosting operating removing The frost of device 30.In addition, defrosted relative in usual defrosting operating using indoor heat, in comfortable defrosting operating, It is defrosted using the heat of the case water in heat supply water tank 60.Therefore, the feelings in comfortable defrosting operating, with usual defrosting operating Condition is compared, and indoor temperature can be inhibited to decline.
(quickly defrosting operating)
Quickly defrosting operates at the temperature of the case water in heat supply water tank 60 as the feelings more than scheduled temperature (such as 20 DEG C) Under condition, alternatively, the temperature that quickly defrosting operates at case water is the discharge temperature (detection of discharge temperature detector 91 of compressor 10 Temperature) more than in the case where selected.In addition, scheduled temperature said here can be the variation with above-mentioned heating operation In first case coolant-temperature gage, the identical value of second case coolant-temperature gage be also possible to different values.In addition, about the comfortable defrosting fortune of selection Turn or selection quickly defrosting operates, is in addition set by the user of air conditioner S1.
In quickly defrosting operating, control unit 90 operates compressor 10, by the switching main valve 21 of refrigerant switching part 20 It is set in by the position of the solid line expression of Fig. 1, opens refrigerant and adjust valve 41~43, also open refrigerant open and close valve 71~73.
The high-temperature high-pressure refrigerant being discharged from compressor 10 flows into outdoor heat exchange via mouth a, b of refrigerant switching part 20 Device 30 is radiated and carrying out heat exchange with outdoor air.At this point, radiating by refrigerant to outdoor air, it is attached to outdoor The frost of heat exchanger 30 melts.The refrigerant to have radiated in outdoor heat exchanger 30 adjusts valve 41~43 by refrigerant and flows into Indoor heat exchanger 51,52 and heat supply water heat exchanger 61, after heat absorption, via refrigerant in refrigerant open and close valve 71~73 Mouth c, d of switching part 20 are inhaled into compressor 10.
In this way, the air conditioner S1 of first embodiment, which by carrying out quickly defrosting operating, can be removed, is attached to outdoor heat friendship The frost of parallel operation 30.In addition, absorbing heat from indoor heat exchanger 51,52, in usual defrosting operating in contrast, in quickly defrosting It also absorbs heat from heat supply water heat exchanger 61 in operating, therefore the defrosting of outdoor heat exchanger 30 can be carried out in a short time.
<function and effect>
More than, air conditioner S1 according to first embodiment can carry out refrigeration operation, heating operation, boiling operating respectively. In addition to this, even if in refrigeration operation and when heating operation, the case water boiling in heat supply water tank 60 can also be made (to boil preferential Refrigeration operation, the preferential heating operation of boiling).In addition, air conditioner S1 according to first embodiment, can be carried out appropriate remove Frost operating (usually defrosting operating, comfortable defrosting operating and quickly defrosting operating).
In addition, air conditioner S1 according to first embodiment, is connected to the refrigerant piping of the mouth c of refrigerant switching part 20 Multiple refrigerant pipings are branched into, each refrigerant piping after branch and indoor heat exchanger 51,52 or heat supply hydrothermal exchange Device 61 connects.Also, be provided on each refrigerant piping (piping of the first branched-refrigerant) after branch connection valve 82, 84,86.Equally, be connected to the refrigerant piping interconnecting piece of a side of outdoor heat exchanger 30 refrigerant piping branch into it is multiple Refrigerant piping, each refrigerant piping (piping of the first branched-refrigerant) after branch are connected to indoor heat exchanger 51,52 Or heat supply water heat exchanger 61.Also, it is provided on each refrigerant piping (piping of the second branched-refrigerant) after branch Connection valve 81,83,85.Therefore, the refrigerant that can will be connected out from indoor heat exchanger 51,52 or 61 side of heat supply water heat exchanger Piping is all connected to either one or two of group 81,82,83,84,85,86 of connection valve in the same manner.
" second embodiment "
Fig. 3 is the figure for showing schematically the example of the refrigerating cycle of air conditioner S2 of second embodiment of the present invention.Such as Shown in Fig. 3, the air conditioner S2 of second embodiment in the air conditioner S1 of first embodiment relative to being provided with 6 connection valves 81~86, in only setting, there are two connection valve 81,82 this point are different from the air conditioner S1 of first embodiment.
That is, in this second embodiment, being branched into the refrigerant piping for the mouth c for being connected to refrigerant switching part 20 multiple Connection valve 82 is provided on the refrigerant piping part (the hereinafter referred to as first common refrigerant piping) of the front of refrigerant piping. It equally, (is outdoor heat exchanger 30 in Fig. 1 in the refrigerant piping interconnecting piece for the side for being connected to outdoor heat exchanger 30 The refrigerant piping interconnecting piece of downside) refrigerant piping branch into multiple refrigerant pipings front refrigerant piping part Connection valve 81 is provided on (the hereinafter referred to as second common refrigerant piping).
That is, refrigerant open and close valve 71~73 and refrigerant adjustment valve 41~43 are to be set to than connection valve 81,82 by room The structure of 61 side of interior heat exchange 51,52 sides or heat supply water heat exchanger.Specifically, being provided with the first common system of connection valve 82 Cryogen pipe arrangement branches into multiple refrigerant pipings, and each refrigerant piping after branch (hereinafter referred to as match by the first branched-refrigerant Pipe) it is connected to indoor heat exchanger 51,52 or heat supply water heat exchanger 61.Also, it is piped in each first branched-refrigerant On be provided with refrigerant open and close valve 71,72,73.Similarly, the second common refrigerant piping for being provided with connection valve 81 branches into Multiple refrigerant pipings, each refrigerant piping (piping of hereinafter referred to as the second branched-refrigerant) after branch are connected to Indoor Thermal Exchanger 51,52 or heat supply water heat exchanger 61.Also, refrigerant tune is provided in each second branched-refrigerant piping Whole valve 41,42,43.
In addition to above structure, the structure of the refrigerating cycle of the air conditioner S2 of second embodiment and first embodiment The structure of the refrigerating cycle of air conditioner S1 is identical.Therefore, the air conditioner S2 of second embodiment can be carried out and first embodiment Operating under the identical operation mode of situation.That is, air conditioner S2 has three of refrigeration operation, heating operation and boiling operating Operation mode.Also, including the preferential refrigeration operation that boils in refrigeration operation, preferentially operated in heating operation including boiling, Usually defrosting operating, comfortable defrosting operating and quickly defrosting operating include comfortable defrosting operating in boiling operating.
In addition, in these operation modes, switching main valve 21 that control unit 90 executes, refrigerant open and close valve 71~73 and The open and close control that refrigerant adjusts valve 41~43 is identical as control shown in Fig. 2, therefore, here, omitting in each operation mode The explanation of control action.
Therefore, even if in the air conditioner S2 of second embodiment, the air conditioner S1 with first embodiment can also be obtained Roughly the same effect.
" third embodiment "
Fig. 4 is the example for showing schematically the refrigerating cycle of air conditioner S3 of third embodiment of the present invention.Such as Fig. 4 institute Show, the structure of the basic refrigerating cycle of the air conditioner S3 of third embodiment and the air-conditioning of second embodiment shown in Fig. 3 The structure of the refrigerating cycle of machine S2 is roughly the same, but different in the following areas.
That is, being connected to refrigerant switching part 20 and outdoor heat friendship in the air conditioner S2 of second embodiment The refrigerant piping of parallel operation 30 branches into only each setting one on each common refrigerant piping of the front of multiple refrigerant pipings A connection valve 81,82.On the other hand, in the air conditioner S3 of third embodiment, such as 8 connection valve 81a~88a are added, This 8 connection valve 81a~88a and three refrigerant adjustment valves 41~43 are used as and are integrally accommodated in feeder pillar 100.
Here, connection valve 81a, 82a being located in feeder pillar 100 is connected to by refrigerant piping is set to outdoor pusher side Connection valve 81,82.In addition, the refrigerant piping for being connected to connection valve 81a, 82a for example branches into respectively in feeder pillar 100 Three branched-refrigerant pipings, the branched-refrigerant of three (total six roots of sensation) after branch are piped each front end and are provided with Connection valve 83a~88a.In addition, refrigerant adjustment valve 41~43 setting to connection valve 81a and connection valve 83a, 85a, 87a into In each branched-refrigerant piping of row connection.
This feeder pillar 100 is such as configuring one jiao of the place that washes one's face in doors.Also, the connection valve in feeder pillar 100 83a, 85a, 87a are connected to indoor heat exchanger 51,52 and heat supply water heat exchanger by refrigerant piping within doors The refrigerant piping interconnecting piece of 61 side.In addition, connection valve 84a, 86a, 88a pass through via refrigerant open and close valve 71~73 Refrigerant piping is connected to the refrigerant piping of another party of indoor heat exchanger 51,52 and heat supply water heat exchanger 61 Interconnecting piece.
From Fig. 4, it can easily be seen that, group 83a, 84a, 85a, 86a, 87a, 88a of the connection valve in feeder pillar 100 are whole It is of equal value.Therefore, arbitrarily combination connection Indoor Thermal can be passed through on group 83a, 84a, 85a, 86a, 87a, 88a of each connection valve Exchanger 51,52 or heat supply water heat exchanger 61.
In addition, the structure of the refrigerating cycle of the air conditioner S3 of third embodiment substantially with the air-conditioning of first embodiment The structure of the refrigerating cycle of machine S1 is identical.Therefore, the air conditioner S3 of third embodiment can be carried out and first embodiment situation Under operating under identical operation mode.That is, air conditioner S3 has three refrigeration operation, heating operation and boiling operating operatings Mode.Also, include the preferential refrigeration operation of boiling in refrigeration operation, include in heating operation boil preferential heating operation, Usually defrosting operating, comfortable defrosting operating and quickly defrosting operating include comfortable defrosting operating in boiling operating.
In addition, in these operation modes, switching main valve 21 that control unit 90 executes, refrigerant open and close valve 71~73 and The open and close control that refrigerant adjusts valve 41~43 is identical as control shown in Fig. 2, therefore, here, omitting in each operation mode The explanation of control action.
Therefore, even if in the air conditioner S3 of third embodiment, the air conditioner S1 with first embodiment can also be obtained Identical effect.In addition, in the third embodiment, by the way that feeder pillar 100 is arranged, the connection valve of the outer pusher side of junction chamber can be made 81,82 and connection valve 81a, 82a in feeder pillar 100 refrigerant piping be not no branch common refrigerant piping, therefore The refrigerant piping that can be shortened as a whole is long.
In addition, controlling from refrigerant adjustment valve 41~43 with the opening and closing of valve, aperture, noise to a certain degree is generated, but It also can will include that refrigerant adjusts the setting of feeder pillar 100 of valve 41~43 without.In addition, even if the case where being arranged in doors Under, it can also be arranged in and less take notice of the place etc. that washes one's face as noise.Therefore, resident within doors can be prevented by from refrigerant tune The noise jamming of whole valve 4143.
" the 4th embodiment "
Fig. 5 is the figure for showing schematically the example of the refrigerating cycle of air conditioner S4 of the 4th embodiment of the invention.Such as Shown in Fig. 5, the structure of the basic refrigerating cycle of the air conditioner S4 of the 4th embodiment and third embodiment shown in Fig. 4 The structure of the refrigerating cycle of air conditioner S3 is roughly the same, but different in the following areas.
That is, refrigerant open and close valve 71,72,73 is arranged in outside feeder pillar 100 in the air conditioner S3 of third embodiment 61 side of indoor heat exchanger 51,52 or heat supply water heat exchanger, but in the air conditioner S4 of the 4th embodiment, it is arranged in branch In case 100.
In addition to these, the air conditioner S4 of the 4th embodiment and the air conditioner S3 of third embodiment are identical, therefore omit The explanation of operation mode in air conditioner S4, the control action in the operation mode.
Therefore, effect identical with the air conditioner S3 of third embodiment can also be obtained from the air conditioner S4 of the 4th embodiment Fruit.In addition to this, in air conditioner S4, since refrigerant open and close valve 71,72,73 is arranged in feeder pillar 100, even if Again in the case where adding heat supply water heat exchanger 61, do not need to judge yet be set indoor heat exchanger 51,52 sides Whether refrigerant open and close valve 71,72 should be added again.It is can be shortened as a result, in the heat supply water system including heat supply water heat exchanger 61 The activity duration at the scene of the additional setting of system etc..
Symbol description
10-compressors, 20-refrigerant switching valves (refrigerant switching part), 21-switching main valves, 30-outdoor heat exchanges Device, 31-outdoor draft fans, 31a-outdoor air flow direction, 41,42-refrigerants adjust valve (the first refrigerant adjustment Valve), 43-refrigerants adjust valve (second refrigerant adjustment valve), 51,52-indoor heat exchangers, 60-heat supply water tanks (case), 61-heat supply water heat exchangers, 71,72-refrigerant open and close valves (the first refrigerant open and close valve), 73-refrigerant open and close valves (the Two refrigerant open and close valves), 81,83-connection valves (the second connection valve), 82,84-connection valves (the first connection valve), 85-connections Valve (the 4th connection valve), 86-connection valves (third connection valve), 81a~88a-connection valve, 90-control units, 91-discharge temperature Spend detector, 92-outside air temperature detectors, 93-outdoor heat exchanger temperature detectors, 94-casees temperature detectors (case temperature detecting part), 100-feeder pillars, the mouth of a~d-refrigerant switching valve, S1~S4-air conditioner.
Claims (according to the 19th article of modification of treaty)
(1. deletion)
(2. deletion)
(3. deletion)
(4. deletion)
(5. deletion)
(6. deletion)
(7. deletion)
(8. deletion)
(9. deletion)
A kind of (10. after modification) air conditioner, which is characterized in that
Have:
Compress the compressor of refrigerant；
The outdoor heat exchanger of heat exchange is carried out between above-mentioned refrigerant and outdoor air；
The indoor heat exchanger of heat exchange is carried out between above-mentioned refrigerant and room air；
The heat supply water heat exchanger of heat exchange is carried out between above-mentioned refrigerant and the case water being stored in case；
It is flowed in the refrigerant piping of connection above-mentioned compressor, above-mentioned indoor heat exchanger and above-mentioned heat supply water heat exchanger The refrigerant switching part that the flow direction of dynamic above-mentioned refrigerant switches over；
The refrigerant being arranged on the first refrigerant piping for connecting above-mentioned refrigerant switching part and above-mentioned indoor heat exchanger is matched First connection valve of pipe connection；
The refrigerant being arranged in the second refrigerant piping for connecting above-mentioned outdoor heat exchanger and above-mentioned indoor heat exchanger is matched Second connection valve of pipe connection；
Refrigerant on the third refrigerant piping for connecting above-mentioned refrigerant switching part and above-mentioned heat supply water heat exchanger is set It is piped the third connection valve of connection；
Refrigerant on the 4th refrigerant piping for connecting above-mentioned outdoor heat exchanger and above-mentioned heat supply water heat exchanger is set It is piped the 4th connection valve of connection；
Above-mentioned first connection valve on above-mentioned first refrigerant piping and the refrigerant between above-mentioned indoor heat exchanger are set First refrigerant open and close valve of runner opening and closing；
Refrigeration between above-mentioned third connection valve and above-mentioned heat supply water heat exchanger on above-mentioned third refrigerant piping is set The second refrigerant open and close valve of agent runner opening and closing；
The first refrigerant that above-mentioned second refrigerant piping is upper and functions as the expansion valve for expanding refrigerant is set Adjust valve；And
The second refrigerant for being arranged on above-mentioned 4th refrigerant piping and being functioned as the expansion valve for expanding refrigerant Valve is adjusted,
It is also equipped with control unit, which controls above-mentioned compressor, above-mentioned outdoor heat exchanger, the switching of above-mentioned refrigerant respectively Portion, above-mentioned indoor heat exchanger, above-mentioned heat supply water heat exchanger, above-mentioned first refrigerant open and close valve, above-mentioned second refrigerant are opened Valve closing, above-mentioned first refrigerant adjustment valve and above-mentioned second refrigerant adjust valve,
Above-mentioned control unit carries out following controls: in the refrigeration operation to freeze to the interior for being provided with above-mentioned indoor heat exchanger When, operate above-mentioned compressor and above-mentioned outdoor heat exchanger, also, with will be by above-mentioned pressure by above-mentioned refrigerant switching part The mode that the warmed-up refrigerant of contracting machine is supplied to above-mentioned indoor heat exchanger sets the flow direction of refrigerant, connects above-mentioned room Inside heat exchanger disconnects above-mentioned heat supply water heat exchanger, in addition, opening above-mentioned first refrigerant open and close valve and above-mentioned second system Cryogen open and close valve carries out aperture control to above-mentioned first refrigerant adjustment valve, closes above-mentioned second refrigerant adjustment valve.
11. air conditioner according to claim 10, which is characterized in that
Above-mentioned control unit carries out following controls: having started the boiling operating of above-mentioned heat supply water heat exchanger in above-mentioned refrigeration operation In the case where, above-mentioned indoor heat exchanger is disconnected, above-mentioned heat supply water heat exchanger is connected, by the system in above-mentioned refrigerant switching part The flow direction of cryogen is switched to opposite direction, closes above-mentioned first refrigerant open and close valve, opens above-mentioned second refrigerant opening and closing Valve opens above-mentioned first refrigerant and adjusts valve, carries out aperture control to above-mentioned second refrigerant adjustment valve.
12. air conditioner according to claim 11, which is characterized in that
It is also equipped with the case temperature detecting part of the temperature for the case water that detection is stored in above-mentioned case,
Above-mentioned control unit carries out following controls: even if by scheduled after the boiling operating for starting above-mentioned heat supply water heat exchanger More than the time, the case where the case detection temperature detected by above-mentioned case temperature detecting part is not up to scheduled target boiling temperature Under, it also operates the boiling of above-mentioned heat supply water heat exchanger and stops, reverting to above-mentioned refrigeration operation.
13. air conditioner according to claim 11, which is characterized in that
The heating mechanisms different from above-mentioned heat supply water heat exchanger heated to the case water being stored in above-mentioned case are also equipped with,
Above-mentioned control unit carries out following controls: making above-mentioned heat supply before the temperature of above-mentioned case water reaches scheduled target boiling temperature In the case that the boiling operating of water heat exchanger stops, above-mentioned case water is heated using above-mentioned heating mechanism, until above-mentioned case water Temperature reaches above-mentioned target boiling temperature.
(14. deletion)
(15. deletion)
(16. deletion)
(17. deletion)
(18. deletion)
Illustrate or states (according to the 19th article of modification of treaty)
(1) modified claim 10 is by the claim 10 before the modification of the claim 9 before referring to modification Record the record for being revised as the form of independent claims, that is, merge in the specific item that claim 9 before a modification is recorded The specific item of the record of claim 10 before modification.
In addition, the claim 10 before modification be notified of in the written comment of International Searching Authority with novelty and Creative claim.
(2) claim 11 to 13 is notified of in the written comment of International Searching Authority with novelty and creativeness Claim.In the modification, 11 to 13 record is required without modification right.
(3) claim 1 to 9 and claim 14 to 18 before deleting modification.In the written of International Searching Authority In opinion, these claims are judged as not having creativeness.

Claims (18)

1. a kind of air conditioner, which is characterized in that
Have:
Compress the compressor of refrigerant；
The outdoor heat exchanger of heat exchange is carried out between above-mentioned refrigerant and outdoor air；
Multiple indoor heat exchangers of heat exchange are carried out between above-mentioned refrigerant and room air；
To in the refrigerant piping of connection above-mentioned compressor, above-mentioned outdoor heat exchanger and above-mentioned multiple indoor heat exchangers The refrigerant switching part that the flow direction of the above-mentioned refrigerant of flowing switches over；
Refrigeration on the first refrigerant piping for connecting above-mentioned refrigerant switching part and above-mentioned multiple indoor heat exchangers is set First connection valve of agent piping connection；
Refrigeration in the second refrigerant piping for connecting above-mentioned outdoor heat exchanger and above-mentioned multiple indoor heat exchangers is set Second connection valve of agent piping connection；And
It is arranged between above-mentioned first connection valve on above-mentioned first refrigerant piping and each above-mentioned multiple indoor heat exchangers Refrigerant flow path opening and closing refrigerant open and close valve.
2. air conditioner according to claim 1, which is characterized in that
Above-mentioned first refrigerant piping by being connected to the first common refrigerant piping of above-mentioned refrigerant switching part, from above-mentioned first Common refrigerant piping branch and the multiple first branched-refrigerants piping structure for being connected to above-mentioned multiple indoor heat exchangers At,
The piping of above-mentioned second refrigerant is by being connected to the second common refrigerant piping of above-mentioned outdoor heat exchanger and from above-mentioned the Two common refrigerant piping branches and the multiple second branched-refrigerants piping for being connected to above-mentioned multiple indoor heat exchangers It constitutes,
Above-mentioned first connection valve is separately positioned in above-mentioned multiple first branched-refrigerant pipings,
Above-mentioned second connection valve is separately positioned in above-mentioned multiple second branched-refrigerant pipings.
3. air conditioner according to claim 2, which is characterized in that
It is respectively arranged in above-mentioned multiple second branched-refrigerant pipings and is functioned as the expansion valve for expanding refrigerant Refrigerant adjust valve.
4. air conditioner according to claim 1, which is characterized in that
Above-mentioned first refrigerant piping is by being connected to the first common refrigerant piping of above-mentioned refrigerant switching part and from above-mentioned One common refrigerant piping branch and the multiple first branched-refrigerants piping for being connected to above-mentioned multiple indoor heat exchangers It constitutes,
The piping of above-mentioned second refrigerant is by being connected to the second common refrigerant piping of above-mentioned outdoor heat exchanger and from above-mentioned the Two common refrigerant piping branches and the multiple second branched-refrigerants piping for being connected to above-mentioned multiple indoor heat exchangers It constitutes,
Above-mentioned first connection valve is arranged on the above-mentioned first common refrigerant piping,
Above-mentioned second connection valve is arranged on the above-mentioned second common refrigerant piping.
5. air conditioner according to claim 4, which is characterized in that
It is respectively arranged in above-mentioned multiple second branched-refrigerant pipings and is functioned as the expansion valve for expanding refrigerant Refrigerant adjust valve.
6. air conditioner according to claim 5, which is characterized in that
Have branch's containing box, branch's containing box store together include the above-mentioned first common refrigerant piping branch into it is above-mentioned more A part of a first branched-refrigerant piping including above-mentioned second common refrigerant piping branch into above-mentioned multiple second branches A part and be separately positioned on above-mentioned multiple second branches system that the above-mentioned second refrigerant of the part of refrigerant piping is piped Above-mentioned refrigerant in cryogen pipe arrangement adjusts valve.
7. air conditioner according to claim 6, which is characterized in that
The above-mentioned refrigerant open and close valve being arranged in above-mentioned first branched-refrigerant piping is accommodated in above-mentioned branch's containing box.
8. air conditioner according to claim 1, which is characterized in that
At least one of above-mentioned multiple indoor heat exchangers is the heat exchanger heated to the case water being stored in case, above-mentioned Other indoor heat exchangers of multiple indoor heat exchangers are that the interior for being provided with the indoor heat exchanger is freezed or made The heat exchanger of heat.
9. a kind of air conditioner, which is characterized in that
Have:
Compress the compressor of refrigerant；
The outdoor heat exchanger of heat exchange is carried out between above-mentioned refrigerant and outdoor air；
The indoor heat exchanger of heat exchange is carried out between above-mentioned refrigerant and room air；
The heat supply water heat exchanger of heat exchange is carried out between above-mentioned refrigerant and the case water being stored in case；
It is flowed in the refrigerant piping of connection above-mentioned compressor, above-mentioned indoor heat exchanger and above-mentioned heat supply water heat exchanger The refrigerant switching part that the flow direction of dynamic above-mentioned refrigerant switches over；
The refrigerant being arranged on the first refrigerant piping for connecting above-mentioned refrigerant switching part and above-mentioned indoor heat exchanger is matched First connection valve of pipe connection；
The refrigerant being arranged in the second refrigerant piping for connecting above-mentioned outdoor heat exchanger and above-mentioned indoor heat exchanger is matched Second connection valve of pipe connection；
Refrigerant on the third refrigerant piping for connecting above-mentioned refrigerant switching part and above-mentioned heat supply water heat exchanger is set It is piped the third connection valve of connection；
Refrigerant on the 4th refrigerant piping for connecting above-mentioned outdoor heat exchanger and above-mentioned heat supply water heat exchanger is set It is piped the 4th connection valve of connection；
Above-mentioned first connection valve on above-mentioned first refrigerant piping and the refrigerant between above-mentioned indoor heat exchanger are set First refrigerant open and close valve of runner opening and closing；
Refrigeration between above-mentioned third connection valve and above-mentioned heat supply water heat exchanger on above-mentioned third refrigerant piping is set The second refrigerant open and close valve of agent runner opening and closing；
The first refrigerant that above-mentioned second refrigerant piping is upper and functions as the expansion valve for expanding refrigerant is set Adjust valve；And
The second refrigerant for being arranged on above-mentioned 4th refrigerant piping and being functioned as the expansion valve for expanding refrigerant Adjust valve.
10. air conditioner according to claim 9, which is characterized in that
It is also equipped with control unit, which controls above-mentioned compressor, above-mentioned outdoor heat exchanger, the switching of above-mentioned refrigerant respectively Portion, above-mentioned indoor heat exchanger, above-mentioned heat supply water heat exchanger, above-mentioned first refrigerant open and close valve, above-mentioned second refrigerant are opened Valve closing, above-mentioned first refrigerant adjustment valve and above-mentioned second refrigerant adjust valve,
Above-mentioned control unit carries out following controls: in the refrigeration operation to freeze to the interior for being provided with above-mentioned indoor heat exchanger When, operate above-mentioned compressor and above-mentioned outdoor heat exchanger, also, with will be by above-mentioned pressure by above-mentioned refrigerant switching part The mode that the warmed-up refrigerant of contracting machine is supplied to above-mentioned indoor heat exchanger sets the flow direction of refrigerant, connects above-mentioned room Inside heat exchanger disconnects above-mentioned heat supply water heat exchanger, in addition, opening above-mentioned first refrigerant open and close valve and above-mentioned second system Cryogen open and close valve carries out aperture control to above-mentioned first refrigerant adjustment valve, closes above-mentioned second refrigerant adjustment valve.
11. air conditioner according to claim 10, which is characterized in that
Above-mentioned control unit carries out following controls: having started the boiling operating of above-mentioned heat supply water heat exchanger in above-mentioned refrigeration operation In the case where, above-mentioned indoor heat exchanger is disconnected, above-mentioned heat supply water heat exchanger is connected, by the system in above-mentioned refrigerant switching part The flow direction of cryogen is switched to opposite direction, closes above-mentioned first refrigerant open and close valve, opens above-mentioned second refrigerant opening and closing Valve opens above-mentioned first refrigerant and adjusts valve, carries out aperture control to above-mentioned second refrigerant adjustment valve.
12. air conditioner according to claim 11, which is characterized in that
It is also equipped with the case temperature detecting part of the temperature for the case water that detection is stored in above-mentioned case,
Above-mentioned control unit carries out following controls: even if by scheduled after the boiling operating for starting above-mentioned heat supply water heat exchanger More than the time, the case where the case detection temperature detected by above-mentioned case temperature detecting part is not up to scheduled target boiling temperature Under, it also operates the boiling of above-mentioned heat supply water heat exchanger and stops, reverting to above-mentioned refrigeration operation.
13. air conditioner according to claim 11, which is characterized in that
The heating mechanisms different from above-mentioned heat supply water heat exchanger heated to the case water being stored in above-mentioned case are also equipped with,
Above-mentioned control unit carries out following controls: making above-mentioned heat supply before the temperature of above-mentioned case water reaches scheduled target boiling temperature In the case that the boiling operating of water heat exchanger stops, above-mentioned case water is heated using above-mentioned heating mechanism, until above-mentioned case water Temperature reaches above-mentioned target boiling temperature.
14. air conditioner according to claim 9, which is characterized in that
It is also equipped with control unit, controls above-mentioned compressor, above-mentioned outdoor heat exchanger, above-mentioned refrigerant switching part, above-mentioned respectively Indoor heat exchanger, above-mentioned heat supply water heat exchanger, above-mentioned first refrigerant open and close valve, above-mentioned second refrigerant open and close valve, on The first refrigerant adjustment valve and above-mentioned second refrigerant adjustment valve are stated,
Above-mentioned control unit carries out following controls:
In the heating operation heated to the interior for being provided with above-mentioned indoor heat exchanger, make above-mentioned compressor and above-mentioned Outdoor heat exchanger operating, also, the refrigeration will be cooled by above-mentioned outdoor heat exchanger by above-mentioned refrigerant switching part The mode that agent is supplied to above-mentioned indoor heat exchanger sets the flow direction of refrigerant, connects above-mentioned indoor heat exchanger, disconnects Above-mentioned heat supply water heat exchanger closes or opens above-mentioned second refrigerant opening and closing in addition, opening above-mentioned first refrigerant open and close valve Valve carries out aperture control to above-mentioned first refrigerant adjustment valve, opens above-mentioned second refrigerant adjustment valve or to above-mentioned second system Cryogen adjusts valve and carries out aperture control.
15. air conditioner according to claim 14, which is characterized in that
Above-mentioned control unit carries out following controls:
In the case where having started the boiling operating of above-mentioned heat supply water heat exchanger in above-mentioned heating operation, above-mentioned Indoor Thermal is disconnected Exchanger connects above-mentioned heat supply water heat exchanger, opens above-mentioned first refrigerant open and close valve and the opening and closing of above-mentioned second refrigerant Valve adjusts valve to above-mentioned first refrigerant and above-mentioned second refrigerant adjustment valve carries out aperture control.
16. air conditioner according to claim 14, which is characterized in that
Above-mentioned control unit carries out following controls: in the case where having started usual defrosting operating in above-mentioned heating operation, in disconnection Indoor heat exchanger is stated, to make to be compressed by above-mentioned compressor, on warmed-up refrigerant flow direction by above-mentioned refrigerant switching part The mode for stating outdoor heat exchanger switches the flow direction of above-mentioned refrigerant, opens above-mentioned first refrigerant open and close valve and above-mentioned First refrigerant adjusts valve, closes above-mentioned second refrigerant open and close valve and above-mentioned second refrigerant adjustment valve.
17. air conditioner according to claim 14, which is characterized in that
Above-mentioned control unit carries out following controls: in the case where having started comfortable defrosting operating in above-mentioned heating operation, in disconnection Indoor heat exchanger is stated, to make to be compressed by above-mentioned compressor, on warmed-up refrigerant flow direction by above-mentioned refrigerant switching part The mode for stating outdoor heat exchanger switches the flow direction of above-mentioned refrigerant, opens above-mentioned first refrigerant open and close valve, above-mentioned the One refrigerant adjusts valve, above-mentioned second refrigerant open and close valve and above-mentioned second refrigerant and adjusts valve.
18. air conditioner according to claim 14, which is characterized in that
Above-mentioned control unit carries out following controls: in the case where having started quickly defrosting operating in above-mentioned heating operation, in disconnection Indoor heat exchanger is stated, to make to be compressed by above-mentioned compressor, on warmed-up refrigerant flow direction by above-mentioned refrigerant switching part The mode for stating outdoor heat exchanger switches the flow direction of above-mentioned refrigerant, opens above-mentioned first refrigerant open and close valve, above-mentioned the One refrigerant adjusts valve, above-mentioned second refrigerant open and close valve and above-mentioned second refrigerant and adjusts valve.
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