WO2010122759A1 - 貯湯式給湯装置、給湯暖房装置、運転制御装置、運転制御方法及びプログラム - Google Patents
貯湯式給湯装置、給湯暖房装置、運転制御装置、運転制御方法及びプログラム Download PDFInfo
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- WO2010122759A1 WO2010122759A1 PCT/JP2010/002802 JP2010002802W WO2010122759A1 WO 2010122759 A1 WO2010122759 A1 WO 2010122759A1 JP 2010002802 W JP2010002802 W JP 2010002802W WO 2010122759 A1 WO2010122759 A1 WO 2010122759A1
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- hot water
- temperature
- heating
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 960
- 238000010438 heat treatment Methods 0.000 title claims abstract description 445
- 238000000034 method Methods 0.000 title claims description 15
- 238000003860 storage Methods 0.000 claims abstract description 218
- 238000001514 detection method Methods 0.000 claims description 49
- 238000003287 bathing Methods 0.000 claims description 7
- 238000003809 water extraction Methods 0.000 claims 5
- 238000009835 boiling Methods 0.000 description 52
- 238000004364 calculation method Methods 0.000 description 34
- 238000010586 diagram Methods 0.000 description 17
- 238000000605 extraction Methods 0.000 description 9
- 238000012545 processing Methods 0.000 description 7
- 238000013517 stratification Methods 0.000 description 5
- 238000003303 reheating Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Images
Classifications
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- 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
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1069—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water regulation in function of the temperature of the domestic hot water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1066—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water
- F24D19/1072—Arrangement or mounting of control or safety devices for water heating systems for the combination of central heating and domestic hot water the system uses a heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
- F24D3/082—Hot water storage tanks specially adapted therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/215—Temperature of the water before heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
- F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/258—Outdoor temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/281—Input from user
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/38—Control of compressors of heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/385—Control of expansion valves of heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/45—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible
- F24H15/457—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based remotely accessible using telephone networks or Internet communication
-
- 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
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/06—Heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
- F24D2240/12—Placed outside of
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
- F24D2240/26—Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6416—With heating or cooling of the system
Definitions
- the present invention relates to a hot water storage type hot water supply apparatus that boils hot water in a hot water storage tank and supplies hot water using the hot water stored in the hot water storage tank.
- a hot water storage type hot water supply device when boiling hot water in a hot water storage tank, low temperature water at the bottom of the hot water storage tank is sent from a take-out port to a heating means such as a heat pump with a boiling pump, and heated to high temperature water by the heating means. Supply the water gradually from the top of the hot water storage tank to the hot water.
- the hot water stored in the hot water storage tank is used for hot water supply, heating, bathing, etc. Especially in heating, bathing, etc., the hot water stored in the hot water tank is used as a radiator or heat exchanger. Heat is absorbed by the vessel to become medium-temperature water and then returned to the hot water storage tank.
- Hot water in the hot water storage tank is stored in the lower part of the hot water storage tank due to the decrease in temperature due to heat dissipation due to heat dissipation, and the hot water becomes medium hot water, or the increase in intermediate hot water used for heating and chasing. For this reason, in the conventional hot water storage type hot water supply apparatus, hot water that has become medium-temperature water is supplied to the heating means, and is heated again.
- a subtank is arranged between the hot water storage tank and the heating means, and the medium temperature water is changed to low temperature water by the subtank and then sent to the heating means so that a heating operation by a highly efficient heat pump heat source device is always possible.
- a hot water storage type hot water supply apparatus has been proposed (see, for example, Patent Document 1).
- the hot water is taken out from the middle part of the hot water tank and used for hot water supply, and the heating return position is arranged in the middle part of the hot water tank. Therefore, a hot water storage type hot water supply apparatus that keeps the lower part of the hot water storage tank at a low temperature due to the difference in specific gravity of water having different hot water temperatures has also been proposed (see, for example, Patent Document 2).
- a hot water storage type hot water supply apparatus has been proposed in which hot water is taken out from an intermediate part of a hot water storage tank so that medium-temperature water can be actively used for heating, and boiling control is performed according to the temperature and flow rate required for heating (for example, see Patent Document 3).
- JP 2006-343012 A Japanese Patent No. 3868924 JP 2007-232345 A
- the conventional hot-water storage type hot water supply apparatus has a problem that efficient operation may not be performed as described below.
- the hot water stored in the hot water storage tank dissipates heat over time, and hot water is used from the hot water storage tank to replenish the low temperature water supply due to the generation of hot water supply load and heating and reheating.
- hot water is used from the hot water in the hot water storage tank and the hot water whose temperature is lowered by that amount is returned to the hot water storage tank, a large amount of intermediate hot water is generated, and the amount of heat stored in the hot water storage tank is reduced.
- the “power consumption necessary to cover the load” includes power to heat and store hot water in hot water storage tanks with a heat pump. Inefficient boiling due to medium-temperature water leads to deterioration of the efficiency of working equipment.
- the amount of heat of the hot water itself is positive (> 0), but hot water that cannot be used as a load is also stored.
- the amount of heat that can be used in the hot water storage tank that is, the effective heat amount, is reduced.
- the hot water storage tank there is a high possibility that a large amount of hot water that cannot be used as a load is stored.
- This invention is for solving the said subject, and it aimed at providing the hot water storage type hot water supply apparatus which can perform an efficient driving
- a hot water storage type hot water supply apparatus is a hot water storage type hot water supply apparatus that supplies heated hot water to a load section where a customer uses hot water.
- a hot water storage tank in which a plurality of hot water outlets for taking out hot water at different heights are formed, a supply temperature that is the temperature of hot water supplied from the hot water storage tank to the load section, and the hot water outlet Based on the temperature of the hot water to be taken out, out of the plurality of hot water outlets, an outlet selection unit for selecting a hot water outlet from which hot water is taken out, and from the selected hot water outlet, the hot water outlet is taken into the hot water storage tank.
- a heating unit for heating the returned hot water.
- the hot water outlet is selected based on the supply temperature and the temperature of the hot water taken out from the hot water outlet, and the hot water taken out from the hot water outlet is heated.
- the supply temperature is the temperature of hot water supplied to the load section, that is, the temperature of hot water that can be effectively used as a load.
- hot water having a temperature lower than the supply temperature is hot water having a temperature that cannot be used as a load.
- the hot water outlet can be selected and heated so that hot water at a temperature that cannot be used as a load in the hot water storage tank is taken out. Therefore, an efficient operation can be performed by suppressing an increase in hot water having a temperature that cannot be used as a load in the hot water storage tank and increasing an increase in the effective heat amount in the hot water storage tank.
- the outlet selecting unit selects a hot water outlet from which the hot water having a temperature lower than the supply temperature is taken out of the plurality of hot water outlets. Specifically, the outlet selection unit selects a hot water outlet from which hot water having a temperature lower than the supply temperature and closest to the supply temperature is taken out.
- a hot water outlet for extracting hot water having a temperature lower than the supply temperature and closest to the supply temperature is selected from the plurality of hot water outlets. For this reason, efficient operation is achieved by selecting hot water outlets through simple comparisons, suppressing the increase in hot water that cannot be used as a load in the hot water tank, and increasing the effective heat quantity in the hot water tank. It can be performed.
- the outlet selection unit is calculated by changing the amount of hot water having a temperature lower than the supply temperature to a heat amount lower than the heat amount from the plurality of hot water outlets, and the heating unit heats the hot water.
- the hot water outlet with the highest COP indicating the energy efficiency in doing so may be selected. Specifically, the amount of hot water taken out from the hot water outlet when the temperature of the hot water taken out from the hot water outlet is lower than the supply temperature for each of the plurality of hot water outlets.
- an increased heat amount calculation unit that calculates an increased heat amount of the hot water when the hot water taken out from the hot water outlet is heated by the heating unit, and the increase calculated for each of the plurality of hot water outlets You may decide to provide the COP calculation part which calculates COP corresponding to calorie
- COP is calculated with the amount of hot water at a temperature lower than the supply temperature as 0, and the hot water outlet with the highest COP is selected. That is, the COP is calculated by setting the effective amount of hot water at a temperature that cannot be used as a load to zero. For this reason, the effective heat amount in the hot water storage tank can be increased most efficiently in accordance with the characteristics of the heat pump by selecting the hot water outlet with the highest efficiency.
- the present invention can be realized not only as such a hot water storage type hot water supply apparatus, but also as a hot water supply / heating apparatus provided with each processing unit constituting the apparatus, an operation control apparatus that controls the operation of the apparatus, or these apparatuses. It can be realized as a method using each processing unit as a step. Furthermore, the present invention can be realized as a program for causing a computer to execute these steps, as a recording medium such as a computer-readable CD-ROM in which the program is recorded, or as information, data, or a signal indicating the program. It can also be realized. These programs, information, data, and signals may be distributed via a communication network such as the Internet.
- hot water that cannot be effectively used in a hot water storage tank is efficiently boiled, the amount of increase in effective heat amount in the hot water storage tank is increased, and the efficiency with respect to load (working equipment efficiency) is improved.
- a hot water storage type hot water supply apparatus that can be operated can be provided.
- FIG. 1 is a schematic view of a hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a configuration diagram showing a schematic configuration of the hot water supply unit according to Embodiment 1 of the present invention.
- FIG. 3 is a functional block diagram showing a functional configuration of the operation control apparatus according to Embodiment 1 of the present invention.
- FIG. 4 is a functional block diagram showing details of the functional configuration of the outlet selection unit according to Embodiment 1 of the present invention.
- FIG. 5 is a flowchart showing an example of the operation of the hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention.
- FIG. 1 is a schematic view of a hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention.
- FIG. 2 is a configuration diagram showing a schematic configuration of the hot water supply unit according to Embodiment 1 of the present invention.
- FIG. 3 is a functional block diagram showing a functional configuration of the
- FIG. 6 is a flowchart illustrating an example of processing in which the outlet selection unit according to Embodiment 1 of the present invention selects a heating outlet.
- FIG. 7 is a diagram illustrating a process in which the outlet selection unit according to Embodiment 1 of the present invention selects a heating outlet.
- FIG. 8 is a diagram illustrating the COP of the heating unit with respect to the temperature of hot water entering the heating unit.
- FIG. 9 is a diagram showing the COP with respect to the incoming water temperature for each outside air temperature.
- FIG. 10 is a functional block diagram showing a functional configuration of the operation control apparatus according to Embodiment 2 of the present invention.
- FIG. 11 is a functional block diagram showing details of the functional configuration of the outlet selection unit according to Embodiment 2 of the present invention.
- FIG. 12 is a flowchart illustrating an example of a process in which the outlet selection unit according to Embodiment 2 of the present invention selects a heating outlet.
- FIG. 13 is a flowchart which shows an example of operation
- Embodiment 1 a hot water storage type hot water supply apparatus according to Embodiment 1 of the present invention will be described with reference to the drawings.
- FIG. 1 is a schematic diagram of a hot water storage type hot water supply apparatus 1 according to Embodiment 1 of the present invention.
- the hot water storage type hot water supply device 1 is a device that supplies heated hot water in order for a consumer to use hot water. As shown in FIG. 1, the hot water storage type hot water supply device 1 includes an operation control device 10 and a hot water supply unit 20.
- the operation control device 10 is a device that controls the operation of the hot water storage type hot water supply device 1. Specifically, the operation control device 10 controls the operation of the hot water storage type hot water supply device 1 so that an efficient operation can be performed by increasing the amount of increase in the effective heat amount in the hot water storage tank. Details of the operation control device 10 will be described later.
- the hot water supply unit 20 heats the hot water according to the control of the operation control device 10 and supplies the heated hot water for the customer to use the hot water.
- the hot water supply unit 20 includes a heating unit 100, a tank unit 200, and a load circuit 300.
- the heating unit 100 includes a heating device such as a heat pump, and heats hot water.
- the tank unit 200 includes a hot water storage tank and stores hot water. Specifically, the hot water stored in the tank unit 200 is heated by the heating unit 100, and the heated hot water is returned to the tank unit 200 and stored. Further, when the amount of hot water used is reduced so that the amount of hot water stored in the tank unit 200 is maintained at a predetermined level, the tank unit 200 is replenished with water.
- the load circuit 300 is a circuit for a consumer to use hot water. Specifically, the load circuit 300 includes a device for a consumer to supply hot water, and a device for a consumer to perform heating and bathing. Then, the hot water stored in the tank unit 200 is supplied to the load circuit 300 in accordance with a customer instruction, and a part of the used hot water is returned to the tank unit 200.
- the load circuit 300 corresponds to a “load unit” described in the claims.
- FIG. 2 is a configuration diagram showing a schematic configuration of the hot water supply unit 20 according to Embodiment 1 of the present invention.
- the heating unit 100 includes a compressor 110, a water heat exchanger 120, an expansion valve 130, an air heat exchanger 140, and a boiling pump 123.
- the heating unit 100 heats hot water taken out from the tank unit 200 and returned to the tank unit 200 to high-temperature water using the water heat exchanger 120.
- the heating unit 100 includes an outside air temperature detector 150 that detects the outside air temperature, and an incoming water temperature detector 122 that extends from the hot water outlet of the tank unit 200 to the inlet of the water heat exchanger 120, It is assumed that a hot water temperature detector 121 is provided on the outlet side of the exchanger 120.
- the tank unit 200 includes a hot water storage tank 210 that is a tank in which hot water is stored, three-way valves 271 to 274, and mixing valves 281 and 282.
- the tank unit 200 supplies hot water stored in the hot water storage tank 210 to the heating unit 100 and the load circuit 300, and stores hot water returned from the heating unit 100 and the load circuit 300 in the hot water storage tank 210.
- the hot water storage tank 210 includes a plurality of heating outlets 231 to 233 (here, heating outlets 1 to 3 respectively), a heating return port 211, a hot water supply load outlet 241, a water inlet 261, hot water It has a circulation outlet 242 and a plurality of hot water circulation return ports 251 to 253 (here, they are referred to as hot water circulation return ports 1 to 3, respectively).
- the heating return port 211 is disposed at a position higher than the plurality of heating extraction ports 1 to 3.
- the hot water supply load outlet 241 is disposed at a position higher than the plurality of hot water circulation return ports 1 to 3, and the water supply port 261 is disposed at a position lower than the hot water circulation return ports 1 to 3. Yes.
- the hot water storage tank 210 it is easy to generate a temperature stratification in which the temperature of the hot water in the upper part increases.
- the plurality of heating outlets 1 to 3 are outlets for taking out hot water formed at positions where the height of the hot water storage tank 210 is different.
- three heating outlets 1 to 3 are formed in the hot water storage tank 210, but the number of heating outlets may be any number as long as it is plural.
- the heating outlets 1 to 3 correspond to the “hot water outlet” recited in the claims.
- the plurality of hot water circulation return ports 1 to 3 are also return ports for returning hot water formed at different positions of the hot water storage tank 210.
- three hot water circulation return ports 1 to 3 are formed in the hot water storage tank 210, but the number of hot water circulation return ports may be any number.
- the hot water storage tank 210 includes a plurality of temperature detectors that detect the temperature of the hot water from the lower part of the hot water storage tank 210 to the upper part thereof.
- the hot water storage tank 210 is provided with five temperature detectors 221 to 225.
- the temperature detectors 223 to 225 are devices for detecting the temperatures of hot water taken out from the heating outlets 1 to 3, respectively.
- the temperature detectors 223 to 225 are included in the “hot water temperature detection unit” recited in the claims.
- a refrigerant circuit is formed by the compressor 110, the water heat exchanger 120, the expansion valve 130, and the air heat exchanger 140.
- a heating circulation path is formed by the heating outlets 1 to 3 (heating outlets 231 to 233) of the hot water storage tank 210, the water heat exchanger 120, and the heating return port 211 of the hot water storage tank 210.
- the hot water in the boiling circuit is circulated by the boiling pump 123, so that the hot water taken out from the heating outlets 1 to 3 of the hot water storage tank 210 exchanges heat with the refrigerant in the water heat exchanger 120, resulting in a high temperature.
- the hot water is returned to the heating return port 211 of the hot water storage tank 210.
- the three-way valves 271 and 272 in the boiling circuit change the heating path by selecting the heating outlets 1 to 3 of the hot water storage tank 210.
- the three-way valves 271 and 272 cause the hot water from the heating outlet 1 (heating outlet 231) of the hot water storage tank 210 to boil up and circulate.
- the heating path is switched so that it flows through
- the three-way valves 271 and 272 heat the hot water from the heating outlet 2 (heating outlet 232) of the hot water storage tank 210 through the heating circuit. Switch the boiling path as indicated.
- hot water is taken out from the selected heating outlets 1 to 3, and the hot water taken out is heated by the heating unit 100 and returned to the hot water storage tank 210.
- the hot water storage water is stored in order to secure the amount of hot water in the hot water storage tank 210. Water is supplied to the tank 210 by water supply.
- the load circuit 300 includes a hot water supply device 310 to which hot water is supplied, a hot water circulation heat exchanger 320 that performs heat exchange with the circulating water for heating and the circulating water for bathtubs used for heating and bathing, and the heating and bath
- the apparatus has a heating bath tracking device 330 that performs reheating, a hot water circulation pump 321, and a heating bath pump 331.
- Hot water to be supplied to the hot water supply device 310 (hereinafter referred to as hot water for hot water supply) is a high temperature water supplied from the hot water supply load outlet 241 of the hot water storage tank 210 by a mixing valve 281 and water supplied by the hot water. After being mixed, the water is discharged.
- the predetermined temperature of the hot water for hot water supply is a set temperature set by a user's remote control operation.
- high temperature water is taken out from the hot water supply load outlet 241, the high temperature water and hot water having a temperature lower than the high temperature water are mixed by the mixing valve 281, and the hot water mixed by the mixing valve 281 is loaded into the load circuit. It is supplied to 300 hot water supply devices 310.
- the hot water supplied from the hot water circulation outlet 242 of the hot water storage tank 210 is heated by the hot water circulation pump 321 through the hot water circulation heat exchanger 320 with a predetermined circulation amount. It is performed by exchanging heat with circulating water for heating or circulating water for bathtubs circulated by the bath pump 331.
- the hot water circulation outlet 242 of the hot water storage tank 210, the hot water circulation heat exchanger 320, and the hot water circulation return ports 1 to 3 form a hot water circulation path.
- Hot water in the hot water circulation path is circulated by a circulation pump 321.
- the hot water after heat exchange in the hot water circulation heat exchanger 320 is partly mixed with the high temperature water supplied from the hot water circulation outlet 242 of the hot water storage tank 210 through the bypass circuit. It adjusts so that the temperature of the hot water (henceforth heating hot water) sent to the heat exchanger 320 for circulation may become predetermined temperature.
- the predetermined temperature of the hot water for heating is such a temperature that the temperature supplied to the heating bath memorial device 330 becomes a set level indicating a set temperature or a level set by a user's remote control operation. .
- hot water that does not flow into the bypass circuit is returned to the hot water storage tank 210.
- a return port close to the temperature of the hot water returning to the hot water storage tank 210 is selected from the return ports for hot water circulation 1 to 3 and returned according to the temperature detected by the temperature detectors 221 to 225 in the hot water storage tank 210. .
- the hot water circulation path three-way valves 273 and 274 are valves for changing the hot water circulation path according to selection of the hot water circulation return ports 1 to 3 of the hot water storage tank 210.
- the hot water circulation path is switched so that the hot water in the hot water circulation path returns to the hot water circulation return port 1 of the hot water storage tank 210.
- the hot water circulation path is switched so that the hot water in the hot water circulation path returns to the hot water circulation return port 2 of the hot water storage tank 210.
- the amount of heat of the hot water supply load is detected. Calculated. Further, by detecting the flow rate of the hot water flowing through the hot water circulation path and the hot water temperature before and after the hot water circulation heat exchanger 320, the amount of heat used for heating and reheating is calculated. .
- the heat exchanger 320 for circulating hot water and the heating bath memorial device 330 may be a radiator that performs heating or the like.
- the boiling pump 123 and the compressor 110 are controlled by the operation control device 10 during a boiling operation that is an operation of heating hot water by the heating unit 100.
- the operation control device 10 adjusts the boiling pump 123 to an appropriate flow rate so that the temperature of the tapping temperature detector 121 becomes 90 ° C.
- the temperature of the hot water can be controlled by controlling the rotational speed of the compressor 110, the opening degree of the expansion valve 130, and the like. With the above operation, 90 ° C.
- the hot water is stored in the hot water storage tank 210 in order from the top, and when the incoming water temperature detector 122 detects a predetermined temperature, for example, 60 ° C., the operation control device 10 indicates that the 90 ° C. hot water is stored in the hot water storage tank 210. It is judged that it reached to the lower part of this, the boiling pump 123 and the compressor 110 are stopped, and a boiling operation is complete
- a predetermined temperature for example, 60 ° C.
- FIG. 3 is a functional block diagram showing a functional configuration of the operation control apparatus 10 according to the first embodiment of the present invention.
- the operation control apparatus 10 includes a hot water tank temperature detection unit 410, a heating operation determination unit 420, an outlet selection unit 430, a heating temperature detection unit 440, a heating temperature capability setting unit 450, and a heating instruction unit 460. It has.
- the hot water storage tank hot water temperature detection unit 410 detects the temperature of the hot water in the hot water storage tank 210. Specifically, the hot water storage tank hot water temperature detection unit 410 obtains the hot water temperature at each position in the hot water storage tank 210 by using a plurality of temperature detectors 221 to 225 provided in the hot water storage tank 210.
- the heating temperature detector 440 detects the temperature of hot and cold water before and after being heated by the heating unit 100. Specifically, the heating temperature detector 440 acquires and holds the temperatures detected from the incoming water temperature detector 122, the hot water temperature detector 121, and the outside air temperature detector 150 in the heating unit 100.
- the take-out port selection unit 430 has a plurality of heating outlets 1 to 4 based on the supply temperature, which is the temperature of hot water supplied from the hot water storage tank 210 to the load circuit 300, and the temperature of hot water taken out from the heating outlet. 3. Select a heating outlet from which hot water is taken out of 3. That is, the outlet selection unit 430 selects one of the plurality of heating outlets 1 to 3 provided in the hot water storage tank 210 in order to take out hot water heated by the heating unit 100. The details of the outlet selection unit 430 will be described later.
- the supply temperature is specifically a set temperature of hot water for hot water supplied to the load circuit 300 or a set temperature of hot water for heating. That is, the supply temperature is a lower limit value of the temperature of hot water that can be effectively used as a load. That is, hot water having a temperature lower than the supply temperature cannot be effectively used as a load.
- the heating operation determination unit 420 determines the start and stop of the operation in which the heating unit 100 heats the hot water from the temperature detected by the hot water tank hot water temperature detection unit 410. Specifically, the heating operation determination unit 420 determines, based on the hot water temperature detected by the hot water tank hot water temperature detection unit 410, how much heating operation is required by starting the heating unit 100. In addition, during the heating operation by the heating unit 100, the end of the boiling operation is determined based on the hot water temperature detected by the hot water storage tank hot water temperature detection unit 410.
- the heating temperature capacity setting unit 450 selects the temperature detected by the hot water storage tank hot water temperature detection unit 410, the temperature detected by the heating temperature detection unit 440, the result determined by the heating operation determination unit 420, and the outlet selection unit 430.
- the heating temperature at which the heating unit 100 heats the hot water and the heating capability of the heating unit 100 are set from the heating outlet.
- the heating temperature capacity setting unit 450 is determined by the hot water temperature detected by the hot water tank hot water temperature detection unit 410, the heating outlet selected by the outlet selection unit 430, and the heating operation determination unit 420. From the information and the temperature information detected by the heating temperature detection unit 440, the setting of the boiling water temperature and the capacity setting of the boiling pump 123 and the compressor 110 are performed.
- the heating instruction unit 460 gives a heating instruction to the heating unit 100 to heat the hot water taken out from the selected heating outlet and returned to the hot water storage tank 210.
- the heating unit 100 heats the hot water with the set heating temperature and heating capacity according to the heating instruction. That is, the heating unit 100 performs boiling with the boiling water temperature set by the heating temperature capability setting unit 450 and the capabilities of the boiling pump 123 and the compressor 110.
- FIG. 4 is a functional block diagram showing details of the functional configuration of the outlet selection unit 430 according to Embodiment 1 of the present invention.
- the outlet selection unit 430 includes an outlet hot water temperature acquisition unit 431, a supply temperature acquisition unit 432, and a selection unit 433.
- the hot water temperature acquisition unit 431 takes hot water in the vicinity of the heating outlets 1 to 3 from the temperature detected by the hot water tank hot water temperature detection unit 410 and the arrangement of the heating outlets 1 to 3 in the hot water storage tank 210. Calculate and obtain the temperature of. That is, the outlet hot water temperature acquisition unit 431 acquires the temperature of hot water taken out from the heating outlets 1 to 3.
- the supply temperature acquisition unit 432 acquires the supply temperature.
- the supply temperature is the set temperature of hot water for hot water or hot water for heating, and when the set temperature for hot water for hot water is different from that for hot water for heating, for example, the set temperature for hot water for hot water and the set temperature for hot water for heating are used. Of these, it is the lowest temperature.
- the supply temperature acquisition unit 432 acquires the supply temperature when the user inputs a set temperature or a set level of hot water for hot water supply or hot water for heating to the hot water storage type hot water supply apparatus 1 with the remote controller 30.
- the remote controller 30 is a device that acquires a set temperature of hot water for hot water supply or a set temperature of hot water for heating, and sets the acquired set temperature as a supply temperature.
- the remote controller 30 is included in the “supply temperature setting unit” recited in the claims.
- the temperature detectors 223 to 225 can estimate the temperature in the hot water storage tank 210, and the remote controller 30 can acquire the supply temperature from the temperature actually used by the consumer. Hot water that cannot be effectively used as a load in 210 can be taken out more accurately.
- the selection unit 433 selects a heating outlet from which hot water is taken out based on the temperature of hot water taken out from the heating outlets 1 to 3 and the supply temperature. Specifically, the selection unit 433 selects a heating outlet from which the hot water having a temperature lower than the supply temperature is taken out of the plurality of heating outlets 1 to 3. Further, specifically, the outlet selection unit 430 performs heating for extracting hot water having a temperature lower than the supply temperature and closest to the supply temperature from a heating outlet for extracting hot water having a temperature lower than the supply temperature. Select the outlet for use.
- FIG. 5 is a flowchart showing an example of the operation of the hot water storage type hot water supply apparatus 1 according to Embodiment 1 of the present invention.
- the hot water storage tank hot water temperature detection unit 410 detects the temperature of the hot water in the hot water storage tank 210 (S102).
- the heating temperature detection part 440 detects the temperature detected from the incoming water temperature detector 122, the hot water temperature detector 121, and the external temperature detector 150 (S104).
- the outlet selection unit 430 selects the heating outlet from which the hot water is taken out of the plurality of heating outlets 1 to 3 based on the supply temperature and the temperature of the hot water taken out from the heating outlet. (S106). The details of the process of selecting the heating outlet by the outlet selector 430 will be described later.
- the heating operation determination unit 420 determines whether to start and stop the operation in which the heating unit 100 heats hot water from the temperature detected by the hot water storage tank hot water temperature detection unit 410 (S108).
- the heating temperature capacity setting unit 450 includes a temperature detected by the hot water tank hot water temperature detection unit 410, a temperature detected by the heating temperature detection unit 440, a result determined by the heating operation determination unit 420, and an outlet selection unit 430.
- the heating temperature at which the heating unit 100 heats the hot water and the heating capacity of the heating unit 100 are set from the heating outlet selected by (S110).
- the heating instruction unit 460 gives a heating instruction to the heating unit 100 to heat the hot water taken out from the selected heating outlet and returned to the hot water storage tank 210 (S112). And the heating part 100 heats hot water with the set heating temperature and heating capability according to a heating instruction
- FIG. 6 is a flowchart illustrating an example of processing (S106 in FIG. 5) in which the outlet selection unit 430 according to Embodiment 1 of the present invention selects a heating outlet.
- FIG. 7 is a diagram illustrating a process in which the outlet selection unit 430 selects a heating outlet.
- the supply temperature acquisition unit 432 acquires the supply temperature tu (S202).
- the outlet hot water temperature acquisition unit 431 acquires the hot water temperature for each heating outlet from the hot water temperature detected by the hot water storage tank hot water temperature detection unit 410 (S204). That is, the outlet hot water temperature acquisition unit 431 acquires the temperature (t1 to t3) of hot water taken out from the heating outlets 1 to 3.
- the outlet hot water temperature acquisition unit 431 may acquire the temperature detected by the temperature detectors 221 to 225 closest to the heating outlet as the hot water temperature for each heating outlet, or temperature detection.
- the temperature of the heating outlet may be calculated and acquired from the temperature detected by the devices 221 to 225 and the position in the hot water storage tank 210 where the temperature detectors 221 to 225 are installed.
- the selection unit 433 selects the heating outlet from which the hot water is taken out of the plurality of heating outlets 1 to 3. That is, the selection unit 433 selects a heating outlet from which the hot water having a temperature lower than the supply temperature and closest to the supply temperature is taken out of the plurality of heating outlets 1 to 3.
- the selector 433 compares the temperature t3 of hot water taken out from the heating outlet 3 with the supply temperature tu (S206).
- the selector 433 selects the heating outlet 3 (S208). For example, as shown in FIG. 7, when the supply temperature tu is the supply temperature tu3 shown in FIG. 7, the hot water temperature t3 of the heating outlet 3 is lower than the supply temperature tu3. Therefore, the selection unit 433 determines that the hot water temperature t3 of the heating outlet 3 is lower than the supply temperature tu3, and selects the heating outlet 3 (heating outlet 233).
- the selection unit 433 determines that the hot water temperature t3 of the heating outlet 3 is equal to or higher than the supply temperature tu (NO in S206), the temperature t2 of the hot water taken out from the heating outlet 2 And the supply temperature tu are compared (S210).
- the selection unit 433 determines that the hot water temperature t2 of the heating outlet 2 is lower than the supply temperature tu (YES in S210).
- the selection unit 433 selects the heating outlet 2 (S212). For example, as shown in FIG. 7, when the supply temperature tu is the supply temperature tu2 shown in FIG. 7, the hot water temperature t3 of the heating outlet 3 is equal to or higher than the supply temperature tu2, and the hot water temperature t2 of the heating outlet 2 Is less than the supply temperature tu2. For this reason, the selection unit 433 determines that the hot water temperature t2 of the heating outlet 2 is lower than the supply temperature tu2, and selects the heating outlet 2 (heating outlet 232).
- the selector 433 selects the heating outlet 1 (S214). For example, as shown in FIG. 7, when the supply temperature tu is the supply temperature tu1 shown in the figure, the hot water temperature t2 of the heating outlet 2 is equal to or higher than the supply temperature tu1. For this reason, the selection unit 433 determines that the hot water temperature t2 of the heating outlet 2 is equal to or higher than the supply temperature tu1, and selects the heating outlet 1 (heating outlet 231).
- the selection unit 433 selects a heating outlet from which the hot water having a temperature lower than the supply temperature and closest to the supply temperature is taken out from the plurality of heating outlets 1 to 3.
- the temperature comparison is performed from the heating outlet 3 at the upper part in the vertical direction of the hot water storage tank 210 on the assumption that the temperature stratification in the hot water storage tank 210 has not collapsed. However, there is a possibility that the temperature stratification may be disturbed. It is desirable to select a heating outlet that is less than the supply temperature and has the smallest difference from the supply temperature.
- the state in which the temperature stratification is not collapsed indicates a state in which the detection values of the temperature detectors 223 to 225 are sequentially increased from the top (a state in which the temperature detected by the temperature detector 223 is the highest),
- the state in which the temperature stratification is disturbed is a state in which the detected value is reversed.
- FIG. 8 is a diagram showing the COP of the heating unit 100 with respect to the temperature of hot water entering the heating unit 100 in the case of a certain outside air temperature and a certain boiling temperature. That is, the figure shows a graph in which the horizontal axis is the temperature of the hot water entering the heating unit 100 (incoming water temperature) and the vertical axis is the COP of the heating unit 100.
- the temperature of hot water entering the heating unit 100 is the same as the temperature of hot water taken out from the heating outlets 1 to 3 of the hot water storage tank 210.
- the supply temperature is 42 ° C. That is, this figure shows COP by the heating unit 100 with respect to the temperature in the hot water storage tank 210 when the supply temperature is 42 ° C.
- the amount of hot water stored in the hot water storage tank 210 can be calculated from the hot water temperature detected by the hot water storage tank hot water temperature detection unit 410 and the position where the temperature detectors 221 to 225 are installed.
- the hot water temperature detected by the temperature detector close to the selected heating outlet, and the temperature that is heated by the heating part 100, are the increased heat quantity that is the amount of increase in the quantity of hot water heated by the heating part 100. Calculate from the flow rate. At this time, the amount of heat increased by heating the hot water is the heat amount of the temperature difference between the boiling hot water temperature and the hot water temperature in the hot water storage tank 210.
- the COP is calculated by dividing the increased heat amount per unit time by the power consumed by the heating unit 100. This electric power is calculated from the temperature of water entering the heating unit 100, the boiling water temperature, the outside air temperature, and the like. Note that the power may be measured by a power meter or the like.
- the graph showing the COP (hereinafter referred to as “rated COP”) with respect to the amount of generated heat calculated in this way is graph A shown in FIG.
- the hot water is supplied to the load circuit 300 at the supply temperature and is used with a load such as hot water supply or heating, the hot water with a temperature lower than the supply temperature cannot be used with a load such as hot water supply or heating. For this reason, the amount of heat of hot water below the supply temperature is set to 0, and the effective amount of heat that is the amount of hot water in the hot water storage tank 210 is calculated. In other words, the effective heat amount is the amount of hot water that can be used with a load such as hot water supply or heating.
- the increased effective heat amount which is an increase in the effective heat amount by heating the hot water below the supply temperature by the heating unit 100, becomes the heat amount of the boiling hot water heated by the heating unit 100, and heats the hot water close to the supply temperature.
- the more effective heat is increased as heating is performed by the section 100.
- the smaller the temperature difference the smaller the power required for boiling, and when boiling with the same capacity, the smaller the temperature difference, the more The amount of hot water tends to be generated. That is, the higher the incoming water temperature to the heating unit 100, the smaller the electric power required for boiling and the greater the effective heat quantity.
- the COP for the increased effective heat quantity (hereinafter referred to as “actual COP”) becomes higher as the supply temperature is closer.
- the actual COP heats the increased effective heat quantity of the hot water at the effective temperature, assuming that only hot water at a temperature equal to or higher than the supply temperature (hereinafter referred to as “effective temperature”) can be used with a load such as hot water supply or heating. It is a value calculated by dividing by the power consumed by the unit 100.
- the graph showing the actual COP calculated in this way is a graph B shown in FIG.
- the actual COP is not necessarily high. If the incoming water temperature is lower than the supply temperature (42 ° C.), the actual COP is high even if the rated COP is low. Specifically, the actual COP increases when the incoming water temperature is lower than the supply temperature, and the actual COP increases as the incoming water temperature approaches the supply temperature.
- the outlet selection unit 430 selects a heating outlet whose temperature detected by the hot water storage tank hot water temperature detection unit 410 is lower than the supply temperature and closest to the supply temperature, the heating unit 100 has the actual COP selected. It can be heated to be the highest. That is, the outlet selection unit 430 can efficiently select the heating outlet by simple comparison.
- the heating outlet is selected based on the supply temperature and the temperature of the hot water taken out from the heating outlet, and the hot water taken out from the heating outlet is heated.
- hot water having a temperature lower than the supply temperature is hot water having a temperature that cannot be used as a load.
- the heating outlet can be selected and heated so that hot water having a temperature that cannot be used as a load in the hot water storage tank 210 is efficiently taken out. Therefore, an increase in the amount of effective heat in the hot water storage tank 210 is suppressed by suppressing an increase in hot water having a temperature that cannot be used as a load in the hot water storage tank 210, and an efficient operation can be performed.
- the “temperature of hot water taken out from the heating outlet” is the temperature detected by the temperature detectors 223 to 225 in the vicinity of the heating outlets 1 to 3, but from the vicinity of the heating outlets 1 to 3.
- the temperature may be any temperature of hot water immediately before entering the heating unit 100.
- the heat loss from the temperature detector in the vicinity of the heating outlet to just before entering the heating unit 100 Minutes may be subtracted from the temperature detected by the temperature detector near the heating outlet and compared to the supply temperature.
- a predetermined value corresponding to the season may be set in advance, or temperature detection near the heating outlet may be detected for each season. You may obtain
- the temperature difference due to the heat loss is expected to be 1 ° C. to 5 ° C., although it varies depending on the installation state of the hot water supply unit 20, the season, and the surrounding conditions.
- the heating outlet for extracting hot water at a temperature lower than the supply temperature and closest to the supply temperature is selected from the plurality of heating outlets 1 to 3.
- a heating outlet having the highest actual COP is selected by calculating the actual COP.
- the characteristic of the heat pump is that its performance varies depending on the outside air temperature, incoming water temperature, boiling water temperature, and the like.
- FIG. 9 is a diagram showing the COP with respect to the incoming water temperature for each outside air temperature. That is, this figure shows a graph in which the horizontal axis represents the temperature of the hot water entering the heating unit 100 (incoming water temperature) and the vertical axis represents the COP of the heating unit 100 when the boiling water temperature is constant.
- a graph C shown in the figure shows a graph in summer
- a graph D shows a graph in an intermediate period (spring or autumn)
- a graph E shows a graph in winter. That is, as shown in the figure, even when the boiling water temperature and the incoming water temperature are the same, the performance (COP) differs due to the different seasons (outside air temperature). Therefore, Embodiment 2 in which the heating outlet is selected so that the actual COP becomes the highest according to the characteristics of the heat pump such as the outside air temperature, the incoming water temperature, and the boiling water temperature will be described below.
- FIG. 10 is a functional block diagram showing a functional configuration of the operation control apparatus 10 according to the second embodiment of the present invention.
- the operation control device 10 includes a hot water tank temperature detection unit 510, an effective heat amount calculation unit 520, a load heat amount calculation unit 530, a heating operation determination unit 540, an outlet selection unit 550, and a heating temperature detection unit 560.
- the heating temperature capability setting unit 570 and the heating instruction unit 580 are provided.
- Hot water storage tank hot water temperature detection unit 510 detects the temperature of hot water in hot water storage tank 210. Specifically, hot water storage tank hot water temperature detection unit 510 acquires and holds the hot water temperature detected by temperature detectors 221 to 225 of hot water storage tank 210.
- the load heat quantity calculation unit 530 acquires information related to hot water supply, heating, and reheating loads used in the load circuit 300, and calculates and holds the load heat quantity.
- the heating temperature detector 560 detects the temperature of hot and cold water before and after being heated by the heating unit 100. Specifically, the heating temperature detector 560 acquires and holds the temperatures detected from the incoming water temperature detector 122, the hot water temperature detector 121, and the outside air temperature detector 150 in the heating unit 100.
- the effective heat amount calculation unit 520 calculates the effective heat amount stored in the hot water storage tank 210 based on the hot water temperature detected by the hot water storage tank hot water temperature detection unit 510.
- the heating operation determination unit 540 determines whether to start and stop the operation in which the heating unit 100 heats the hot water from the temperature detected by the hot water storage tank hot water temperature detection unit 510. Specifically, the heating operation determination unit 540 starts the heating unit 100 based on the effective heat amount calculated by the effective heat amount calculation unit 520 and the load heat amount calculated by the load heat amount calculation unit 530, and how much. It is determined whether it is necessary to perform a boiling operation, or during the boiling operation by the heating unit 100, it is determined whether the boiling operation is finished based on the hot water temperature detected by the hot water storage tank hot water temperature detecting unit 510.
- the outlet selection unit 550 selects a heating outlet from which the hot water is taken out of the plurality of heating outlets 1 to 3 based on the supply temperature and the temperature of the hot water taken out from the heating outlet. That is, the outlet selection unit 550 calculates the amount of hot water at a temperature lower than the supply temperature from the plurality of heating outlets 1 to 3 by changing the amount of heat to a lower heat amount than the heat amount.
- the outlet selection unit 550 selects the heating outlet having the highest actual COP from the plurality of heating outlets 1 to 3 by setting the heat quantity of hot water lower than the supply temperature to 0. . More specifically, the outlet selection unit 550 selects a heating outlet from the result determined by the heating operation determination unit 540 and the hot water temperature detected by the hot water tank hot water temperature detection unit 510. Details of the outlet selection unit 550 will be described later.
- the heating temperature capability setting unit 570 includes the hot water temperature detected by the hot water storage tank hot water temperature detection unit 510, the heating outlet selected by the outlet selection unit 550, the information determined by the heating operation determination unit 540, and the heating From the temperature information detected by the temperature detection unit 560, the setting of the boiling water temperature, which is the heating temperature at which the heating unit 100 heats the hot water, and the capacity settings of the boiling pump 123 and the compressor 110 are performed.
- the heating instruction unit 580 gives the heating unit 100 a heating instruction for heating the hot water taken out from the selected heating outlet and returned to the hot water storage tank 210.
- the heating unit 100 heats the hot water with the set heating temperature and heating capacity according to the heating instruction. That is, the heating unit 100 performs boiling with the boiling water temperature set by the heating temperature capability setting unit 570 and the capabilities of the boiling pump 123 and the compressor 110.
- FIG. 11 is a functional block diagram showing details of the functional configuration of the outlet selection unit 550 according to Embodiment 2 of the present invention.
- the outlet selection unit 550 includes a supply temperature acquisition unit 551, an increased heat amount calculation unit 552, a COP calculation unit 553, and a selection unit 554.
- the supply temperature acquisition unit 551 acquires the supply temperature.
- the supply temperature acquisition unit 551 here has the same function as the supply temperature acquisition unit 432 in the first embodiment.
- the increased heat quantity calculation unit 552 sets the amount of hot water taken out from the heating outlet to 0. As above, the increased effective heat quantity of the hot water when the hot water taken out from the heating outlet is heated by the heating unit 100 is calculated.
- the increased heat amount calculation unit 552 determines the hot water temperature of each of the heating outlets 1 to 3 based on the temperature detected by the hot water storage tank hot water temperature detection unit 510 by the heating operation determination unit 540. The increased effective heat amount when the boiling operation is performed so as to reach a temperature is calculated.
- the COP calculation unit 553 calculates an actual COP that is a COP corresponding to the increased effective heat amount calculated by the increased heat amount calculation unit 552 for each of the plurality of heating outlets 1 to 3.
- the selection unit 554 selects the heating outlet having the highest actual COP calculated by the COP calculation unit 553. Specifically, the selection unit 554 compares the actual COP calculated for each of the heating extraction ports 1 to 3 by the COP calculation unit 553, and performs heating of the heating extraction port with the highest actual COP. It is selected as a heating outlet from which hot water from the hot water storage tank 210 to the heating unit 100 is taken out.
- FIG. 12 is a flowchart showing an example of the operation of the hot water storage type hot water supply apparatus 1 according to Embodiment 2 of the present invention.
- the hot water storage tank hot water temperature detection unit 410 detects the temperature of the hot water in the hot water storage tank 210 (S302).
- the effective heat amount calculation unit 520 calculates the effective heat amount stored in the hot water storage tank 210 based on the hot water temperature detected by the hot water storage tank hot water temperature detection unit 510 (S304).
- the load heat quantity calculation unit 530 calculates and holds the load heat quantity used in the load circuit 300 (S306).
- the heating operation determination unit 540 performs heating from the temperature detected by the hot water storage tank hot water temperature detection unit 510, the effective heat amount calculated by the effective heat amount calculation unit 520, and the load heat amount calculated by the load heat amount calculation unit 530.
- the part 100 determines whether to start and stop the operation for heating the hot water (S308).
- the outlet selection unit 550 selects a heating outlet from which the hot water is taken out of the plurality of heating outlets 1 to 3 based on the supply temperature and the temperature of the hot water taken out from the heating outlet. Select (S310). The details of the process in which the outlet selection unit 550 selects the heating outlet will be described later.
- the heating temperature detection part 560 detects the temperature of the hot and cold water before and after being heated by the heating part 100 (S312).
- the heating temperature capacity setting unit 570 includes a hot water temperature detected by the hot water tank hot water temperature detection unit 510, a heating outlet selected by the outlet selection unit 550, a result determined by the heating operation determination unit 540, and a heating temperature. From the temperature detected by the detection unit 560, the heating temperature at which the heating unit 100 heats the hot water and the heating capacity of the heating unit 100 are set (S314).
- the heating instruction unit 580 gives a heating instruction for heating the hot water taken out from the selected heating outlet and returned to the hot water storage tank 210 to the heating unit 100 (S316). And the heating part 100 heats hot water with the set heating temperature and heating capability according to a heating instruction
- FIG. 13 is a flowchart illustrating an example of processing (S310 in FIG. 12) in which the outlet selection unit 550 according to Embodiment 2 of the present invention selects a heating outlet.
- the supply temperature acquisition unit 551 acquires the supply temperature tu (S402).
- the increased heat quantity calculation unit 552 has a heat quantity of the hot water taken out from the heating take-out port. Is set to 0, and the increased effective heat quantity of the hot water when the hot water taken out from the heating outlet is heated by the heating unit 100 is calculated (S404).
- the increased heat amount calculation unit 552 calculates the supply temperature acquired by the supply temperature acquisition unit 551, the boiling water temperature determined by the supply temperature heating operation determination unit 540, and the hot water tank temperature detection unit 510.
- the increased effective heat amount is calculated for each of the heating outlets 1 to 3 from the hot water temperature in the vicinity of the heating outlets 1 to 3.
- the calculation of the increased effective heat quantity is the same as the calculation method of the increased effective heat quantity in the graph B in the description of FIG. That is, assuming that hot water below the supply temperature in the hot water storage tank 210 cannot be effectively used, the original effective heat amount in the hot water storage tank 210 is 0, and the increased effective heat amount when heating using the hot water is the heating unit 100.
- the increased heat quantity calculation unit 552 boils the hot water having an effective heat quantity of 0, and the temperature of the hot water is the supply temperature.
- the increased effective heat amount is calculated by boiling hot water at the temperature.
- the COP calculating unit 553 calculates an actual COP for each of the plurality of heating outlets 1 to 3 (S406).
- the calculation of the actual COP is the same as the COP calculation method in the description of FIG. That is, for example, in the case of the heating outlet 1, the effective heat amount that increases per unit time when the hot water temperature near the heating outlet 1 is heated to the boiling hot water temperature, and the consumption required for heating per unit time It is assumed that the actual COP is calculated from the electric energy.
- the actual COP is effective not increasing per unit time but increasing when the hot water temperature of the heating outlet 1 is heated to the unit boiling water temperature, assuming that the hot water of the unit amount is heated. It may be calculated from the amount of heat and the amount of power consumption required for the heating.
- the selection unit 554 selects a heating outlet having the highest actual COP calculated by the COP calculation unit 553. That is, the selection unit 554 compares the actual COP calculated for each of the heating extraction ports 1 to 3 by the COP calculation unit 553, and selects the heating extraction port with the highest actual COP.
- the selection unit 554 compares the actual COP of the heating outlets 1 and 2 with the actual COP of the heating outlet 3 (S408).
- the selection unit 554 has an actual COP (COP3) of the heating outlet 3 larger than the actual COP (COP1) of the heating outlet 1, and the heating outlet 3 than the actual COP (COP2) of the heating outlet 2. If it is determined that the actual COP (COP3) is large (YES in S408), the heating outlet 3 is selected (S410).
- COP3 actual COP
- COP1 actual COP
- COP2 actual COP
- the selection unit 554 determines that COP1 is equal to or greater than COP3, or COP2 is equal to or greater than COP3 (NO in S408), the active COP and the heat extraction port 2 of the heating outlets 1 and 3 are selected. The actual COP is compared (S412).
- the selection unit 554 determines that COP2 is larger than COP1 and COP2 is larger than COP3 (YES in S412), the selection unit 554 selects the heating outlet 2 (S414).
- the selection unit 554 determines that COP1 is equal to or greater than COP2 or COP3 is equal to or greater than COP2 (NO in S412), the selection unit 554 selects the heating outlet 1 (S416).
- the selection unit 554 selects the heating outlet from which the actual COP is the highest among the plurality of heating outlets 1 to 3.
- the supply temperature which is a temperature that cannot be used effectively, may be determined in advance from a standard load or the like, or in the process of acquiring and accumulating the load heat amount, it is updated by performing correction, etc. It can also be set to a value more suitable for the use situation of the user.
- the actual COP is calculated by setting the heat quantity of hot water lower than the supply temperature to 0, and the heating outlet having the highest actual COP is selected. That is, the actual COP is calculated by setting the effective amount of hot water at a temperature that cannot be used as a load to zero. For this reason, the effective heat amount in the hot water storage tank 210 can be increased most efficiently in accordance with the characteristics of the heat pump by selecting the most efficient heating outlet.
- the hot water storage type hot water supply apparatus 1 As described above, according to the hot water storage type hot water supply apparatus 1 according to the present invention, it is possible to perform efficient operation by increasing the amount of increase in the effective heat amount in the hot water storage tank 210.
- the hot water storage type hot water supply apparatus 1 has been described using the above embodiment, the present invention is not limited to this.
- the supply temperature acquisition unit 432 acquires the supply temperature when the user inputs a set temperature or a set level of hot water or hot water to the hot water storage hot water supply device 1 with the remote controller 30. It was decided. However, the supply temperature acquisition unit 432 may acquire the supply temperature by directly inputting the supply temperature to the hot water storage type hot water supply device 1 without the user via the remote controller 30. The supply temperature acquisition unit 432 may acquire the supply temperature by detecting the temperature of hot water for hot water supply or hot water for heating using a temperature detection sensor or the like.
- the supply temperature is the lowest temperature among the set temperature of hot water for hot water supply and the set temperature of hot water for heating.
- the supply temperature is not limited to this.
- the supply temperature may be arbitrarily determined by the user regardless of the set temperature of hot water for hot water supply or hot water for heating.
- the outlet selection unit 550 selects the heating outlet having the highest actual COP from the plurality of heating outlets 1 to 3. However, the outlet selection unit 550 selects a heating outlet from which the hot water having a temperature lower than the supply temperature is taken out of the plurality of heating outlets 1 to 3, and supplies hot water having a temperature lower than the supply temperature. The heating outlet having the highest actual COP may be selected from the heating outlet to be taken out.
- the outlet selection unit 550 calculates the actual COP by setting the heat quantity of hot water having a temperature lower than the supply temperature to zero.
- the outlet selection unit 550 may calculate the actual COP by changing the amount of hot water having a temperature lower than the supply temperature to a predetermined amount of heat that is lower than the amount of heat instead of setting it to zero.
- the present invention can be realized not only as such a hot water storage type hot water supply apparatus 1 but also as a hot water supply and heating apparatus including each processing unit constituting the apparatus, an operation control apparatus 10 that controls the operation of the apparatus, or an apparatus thereof. Can be realized as a method in which each processing unit constituting the step is used as a step.
- the present invention can be realized as a program for causing a computer to execute these steps, as a recording medium such as a computer-readable CD-ROM in which the program is recorded, or as information, data, or a signal indicating the program. It can also be realized.
- These programs, information, data, and signals may be distributed via a communication network such as the Internet.
- the hot water storage type hot water supply apparatus of the present invention can be applied to a hot water storage type hot water supply apparatus regardless of the type and presence of heating such as floor heating and a radiator, and whether or not a bath is cooked. It is useful for the heat pump type hot water heater / heater used. Further, the present invention can be applied to a hot water storage type hot water supply apparatus using other refrigerants.
- Hot water storage type hot water supply apparatus 10
- Operation control apparatus 20
- Hot water supply part 30
- Remote control 100
- Heating part 110 Compressor 120
- Hydrothermal exchanger 121
- Hot water temperature detector 122
- Incoming water temperature detector 123
- Boiling pump 130
- Expansion valve 140
- Air heat exchanger 150 Outside temperature Detector 200
- Tank unit 210
- Hot water storage tank 211
- Temperature detector 231 to 233 Heating outlet 241 Hot water load outlet 242
- Hot water circulation return port 261 Water inlet 271 274
- Three-way valve 281 282 Mixing valve 300
- Load circuit 310
- Hot water supply equipment 320
- Heat exchanger for hot water circulation 321
- Pump for hot water circulation 330
- Heating bath memorial equipment 331
- Heating bath pump 410
- Hot water bath temperature detection Unit 420
- heating operation determination unit 430
- outlet selection unit 431 outlet hot water temperature acquisition
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- General Engineering & Computer Science (AREA)
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- Heat-Pump Type And Storage Water Heaters (AREA)
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Abstract
Description
以下、本発明の実施の形態1における貯湯式給湯装置について、図面を参照しながら説明する。
次に、本発明の実施の形態2における貯湯式給湯装置について、説明する。
10 運転制御装置
20 給湯部
30 リモコン
100 加熱部
110 圧縮機
120 水熱交換器
121 出湯温検出器
122 入水温検出器
123 沸き上げポンプ
130 膨張弁
140 空気熱交換器
150 外気温検出器
200 タンクユニット
210 貯湯タンク
211 加熱用戻り口
221~225 温度検出器
231~233 加熱用取り出し口
241 給湯負荷用取り出し口
242 温水循環用取り出し口
251~253 温水循環用戻り口
261 給水口
271~274 三方弁
281、282 混合弁
300 負荷回路
310 給湯用機器
320 温水循環用熱交換器
321 温水循環用ポンプ
330 暖房風呂追焚機器
331 暖房風呂用ポンプ
410 貯湯タンク湯温検出部
420 加熱運転判断部
430 取出口選択部
431 取出口湯温取得部
432 供給温度取得部
433 選択部
440 加熱温度検出部
450 加熱温度能力設定部
460 加熱指示部
510 貯湯タンク湯温検出部
520 有効熱量算出部
530 負荷熱量算出部
540 加熱運転判断部
550 取出口選択部
551 供給温度取得部
552 増加熱量算出部
553 COP算出部
554 選択部
560 加熱温度検出部
570 加熱温度能力設定部
580 加熱指示部
Claims (17)
- 需要家が湯水を利用する負荷部に、加熱された湯水を供給する貯湯式給湯装置であって、
湯水が貯められ、高さが異なる位置に湯水を取り出すための複数の湯水取出口が形成された貯湯タンクと、
前記貯湯タンクから前記負荷部に供給される湯水の温度である供給温度と、前記湯水取出口から取り出される湯水の温度とに基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する取出口選択部と、
選択された前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱部と
を備える貯湯式給湯装置。 - 前記取出口選択部は、前記複数の湯水取出口の中から、前記供給温度よりも低い温度の湯水を取り出す湯水取出口を選択する
請求項1に記載の貯湯式給湯装置。 - 前記取出口選択部は、前記供給温度よりも低く、かつ前記供給温度に最も近い温度の湯水を取り出す湯水取出口を選択する
請求項2に記載の貯湯式給湯装置。 - さらに、
前記貯湯タンクに形成され、前記貯湯タンクから高温水を取り出すための給湯負荷用取り出し口と、
前記給湯負荷用取り出し口から取り出された高温水と前記高温水よりも低い温度の湯水とを混合する混合弁とを有し、
前記混合弁によって混合された湯水を前記負荷部に供給する
請求項1~3のいずれか1項に記載の貯湯式給湯装置。 - さらに、
前記複数の湯水取出口ごとに、前記湯水取出口から取り出される湯水の温度を求めるための湯温検知部を備える
請求項1~4のいずれか1項に記載の貯湯式給湯装置。 - 前記負荷部には、前記需要家に給湯される湯水である給湯用湯水、又は、暖房若しくは風呂追い焚きのための機器に供給される湯水である暖房用湯水が供給され、
前記貯湯式給湯装置は、さらに、
前記給湯用湯水の設定温度又は前記暖房用湯水の設定温度を取得し、取得した前記設定温度を前記供給温度として設定する供給温度設定部を有する
請求項1~5のいずれか1項に記載の貯湯式給湯装置。 - さらに、
前記貯湯タンクに形成され、いずれかの前記湯水取出口から取り出され前記加熱部で加熱された湯水を前記貯湯タンクに戻すための加熱用戻り口を有し、
前記加熱用戻り口は、前記複数の湯水取出口よりも高い位置に配置される
請求項1~6のいずれか1項に記載の貯湯式給湯装置。 - 前記加熱部は、湯水を加熱するヒートポンプを備える
請求項1~7のいずれか1項に記載の貯湯式給湯装置。 - 前記取出口選択部は、前記複数の湯水取出口の中から、前記供給温度より低い温度の湯水の熱量を当該熱量より低い熱量に変更して算出される、前記加熱部が湯水を加熱する場合のエネルギー効率を示すCOPが最も高い湯水取出口を選択する
請求項1、2、及び4~8のいずれか1項に記載の貯湯式給湯装置。 - 前記取出口選択部は、
前記複数の湯水取出口ごとに、前記湯水取出口から取り出される湯水の温度が前記供給温度より低い場合に、前記湯水取出口から取り出される湯水の熱量を0として、前記湯水取出口から取り出される湯水が前記加熱部に加熱される場合の当該湯水の増加熱量を算出する増加熱量算出部と、
前記複数の湯水取出口ごとに、算出された前記増加熱量に対応するCOPを算出するCOP算出部と、
算出された前記COPが最も高い湯水取出口を選択する選択部とを備える
請求項4に記載の貯湯式給湯装置。 - 前記負荷部には、前記需要家に給湯される湯水である給湯用湯水、又は、暖房又は風呂追い焚きのための機器に供給される湯水である暖房用湯水が供給され、
前記取出口選択部は、前記給湯用湯水の設定温度又は前記暖房用湯水の設定温度である前記供給温度に基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する
請求項1~10のいずれか1項に記載の貯湯式給湯装置。 - 前記取出口選択部は、前記給湯用湯水の設定温度及び前記暖房用湯水の設定温度のうち、最も低い温度である前記供給温度に基づいて、前記湯水取出口を選択する
請求項11に記載の貯湯式給湯装置。 - さらに、
前記貯湯タンク内の湯水の温度を検出する貯湯タンク湯温検出部と、
前記加熱部によって加熱される前後の湯水の温度を検出する加熱温度検出部と、
前記貯湯タンク湯温検出部が検出した温度から、前記加熱部が湯水を加熱する運転の起動及び停止の判断を行う加熱運転判断部と、
前記貯湯タンク湯温検出部が検出した温度と前記加熱温度検出部が検出した温度と前記加熱運転判断部が判断した結果と前記取出口選択部が選択した湯水取出口とから、前記加熱部が湯水を加熱する加熱温度と前記加熱部の加熱能力とを設定する加熱温度能力設定部とを備え、
前記加熱部は、設定された前記加熱温度及び前記加熱能力で湯水を加熱する
請求項1~12のいずれか1項に記載の貯湯式給湯装置。 - 需要家が湯水を利用する負荷部に、加熱された湯水を供給し、給湯及び暖房を行う給湯暖房装置であって、
湯水が貯められ、高さが異なる位置に湯水を取り出すための複数の湯水取出口が形成された貯湯タンクと、
前記貯湯タンクから前記負荷部に供給される湯水の温度である供給温度と、前記湯水取出口から取り出される湯水の温度とに基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する取出口選択部と、
選択された前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱部と
を備える給湯暖房装置。 - 需要家が湯水を利用する負荷部に、加熱された湯水を供給する貯湯式給湯装置の運転を制御する運転制御装置であって、
前記貯湯式給湯装置は、
湯水が貯められ、高さが異なる位置に湯水を取り出すための複数の湯水取出口が形成された貯湯タンクと、
前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱部とを備え、
前記運転制御装置は、
前記貯湯タンクから前記負荷部に供給される湯水の温度である供給温度と、前記湯水取出口から取り出される湯水の温度とに基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する取出口選択部と、
選択された前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱指示を前記加熱部に与える加熱指示部と
を備える運転制御装置。 - 需要家が湯水を利用する負荷部に、加熱された湯水を供給する貯湯式給湯装置の運転を制御する運転制御方法であって、
前記貯湯式給湯装置は、
湯水が貯められ、高さが異なる位置に湯水を取り出すための複数の湯水取出口が形成された貯湯タンクと、
前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱部とを備え、
前記運転制御方法は、
前記貯湯タンクから前記負荷部に供給される湯水の温度である供給温度と、前記湯水取出口から取り出される湯水の温度とに基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する取出口選択ステップと、
選択された前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱指示を前記加熱部に与える加熱指示ステップと
を含む運転制御方法。 - 需要家が湯水を利用する負荷部に、加熱された湯水を供給する貯湯式給湯装置の運転を制御するためのプログラムであって、
前記貯湯式給湯装置は、
湯水が貯められ、高さが異なる位置に湯水を取り出すための複数の湯水取出口が形成された貯湯タンクと、
前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱部とを備え、
前記プログラムは、
前記貯湯タンクから前記負荷部に供給される湯水の温度である供給温度と、前記湯水取出口から取り出される湯水の温度とに基づいて、前記複数の湯水取出口の中から、湯水を取り出す湯水取出口を選択する取出口選択ステップと、
選択された前記湯水取出口から取り出され、前記貯湯タンクに戻される湯水を加熱する加熱指示を前記加熱部に与える加熱指示ステップと
をコンピュータに実行させるプログラム。
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CN201080001962.9A CN102084190B (zh) | 2009-04-21 | 2010-04-19 | 储热式热水供给装置、热水供给供暖装置、运转控制装置及运转控制方法 |
US13/001,626 US9170030B2 (en) | 2009-04-21 | 2010-04-19 | Storage hot water supplying apparatus, hot water supplying and space heating apparatus, operation control apparatus, operation control method, and operation control program |
JP2010545711A JP5498959B2 (ja) | 2009-04-21 | 2010-04-19 | 貯湯式給湯装置、給湯暖房装置、運転制御装置、運転制御方法及びプログラム |
EP10766821.2A EP2423617B1 (en) | 2009-04-21 | 2010-04-19 | Storage hot water supplying apparatus, hot water supplying and space heating apparatus, operation control apparatus, operation control method and operation control program |
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Also Published As
Publication number | Publication date |
---|---|
EP2423617A1 (en) | 2012-02-29 |
US9170030B2 (en) | 2015-10-27 |
JP5498959B2 (ja) | 2014-05-21 |
EP2423617A4 (en) | 2014-06-04 |
EP2423617B1 (en) | 2016-08-24 |
CN102084190B (zh) | 2014-04-02 |
JPWO2010122759A1 (ja) | 2012-10-25 |
CN102084190A (zh) | 2011-06-01 |
US20110139259A1 (en) | 2011-06-16 |
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