CN101910747A - Heat-pump hot-water supply apparatus - Google Patents
Heat-pump hot-water supply apparatus Download PDFInfo
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- CN101910747A CN101910747A CN200880123498.3A CN200880123498A CN101910747A CN 101910747 A CN101910747 A CN 101910747A CN 200880123498 A CN200880123498 A CN 200880123498A CN 101910747 A CN101910747 A CN 101910747A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 188
- 238000010438 heat treatment Methods 0.000 claims abstract description 163
- 238000009835 boiling Methods 0.000 claims abstract description 77
- 238000006243 chemical reaction Methods 0.000 claims description 27
- 230000008520 organization Effects 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 15
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 12
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 6
- 239000001569 carbon dioxide Substances 0.000 claims description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000008400 supply water Substances 0.000 description 26
- 239000003507 refrigerant Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 5
- 230000000306 recurrent effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 102220285529 rs876658859 Human genes 0.000 description 2
- 241000589248 Legionella Species 0.000 description 1
- 208000007764 Legionnaires' Disease Diseases 0.000 description 1
- 102220577656 Ras-related protein Rap-2a_S17N_mutation Human genes 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 102220289537 rs1381863749 Human genes 0.000 description 1
- 102220145792 rs369260005 Human genes 0.000 description 1
- 230000009182 swimming Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- 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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1054—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- 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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1063—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water counting of energy consumption
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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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/144—Measuring or calculating energy consumption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
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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
- F24H15/00—Control of fluid heaters
- F24H15/10—Control of fluid heaters characterised by the purpose of the control
- F24H15/16—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources
- F24H15/164—Reducing cost using the price of energy, e.g. choosing or switching between different energy sources where the price of the electric supply changes with time
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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
- 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
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/227—Temperature of the refrigerant in heat pump cycles
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/238—Flow rate
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/258—Outdoor temperature
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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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/335—Control of pumps, e.g. on-off control
- F24H15/34—Control of the speed of pumps
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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
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
This aims to provide a heat-pump hot-water supply apparatus for enhancing an energy efficiency at a hot-water tank boiling time for a midnight time period and for leveling a demand for an electric power. The heat-pump hot-water supply apparatus comprises a heat pump and a hot-water tank for reserving the water heated by the heat pump. The heat-pump hot-water supply apparatus further comprises setting means for setting a heating ability by using the ambient temperature, and control means for running the heat pump preferentially at the minimum of the heating ability set for the midnight time period by the setting means. The control means exercises control to run the heat pump with a heating ability higher than the minimum, if the boil cannot be completed for the midnight time period even by the preferential run of the heat pump with the minimum heating ability.
Description
Technical field
The heat-pump hot-water supply apparatus that the present invention relates to use heat pump that the water of hot water reservoir is heated.
Background technology
Example as be with the heat-pump hot-water supply apparatus of the heat accumulation ability of swimming that boils in the cheap time in the late into the night of the electricity charge is documented in the patent documentation 1.For the band of time at dead of night boils, and seek to reduce radiation loss, according to required fixing heating efficiency of boiling heat and heat pump, calculate required boiling time, the moment after time in the late into the night end of tape deducts this required boiling time constantly is set at boils the zero hour, the second half section of time band switches to and boils running at dead of night.
Boil the example of the heat-pump hot-water supply apparatus of controlling organization as being provided with of other, be documented in the patent documentation 2.It calculates the heating efficiency of frequency conversion heat pump by (required heat/heat accumulation water time), obtains corresponding frequency from the chart of the relation of expression heating efficiency and frequency.Frequency conversion heat pump has with low frequency running ratio with the high characteristic of high frequency running efficiency.Therefore, compare, can carry out hot water storage efficiently with the situation of carrying out hot water storage with fixing output.
Patent documentation 3 has been put down in writing the example of the heat-pump hot-water supply apparatus of the hot water storage tank with low capacity.It mainly is to drive heat pump cycle at night, with hot water storage in hot water storage tank, also suitably drive heat pump cycle by day, hot water storage in hot water storage tank, is being worried under the situation that hot water is used up the running that preferentially improves the heating efficiency of heat pump cycle, prevent that hot water from using up, do not worrying under the situation that hot water is used up, carrying out the preferential running of heat pump cycle running efficiency, preventing to improve running efficiency when hot water from using up.Then,, in 1 day, need most the time band (16-22 point) of hot water, make heating efficiency preferential, make running efficiency preferential at band At All Other Times for preventing that hot water from using up by the time tape timer.
Patent documentation 1: TOHKEMY 2004-347171 communique
Patent documentation 2: Japanese kokai publication hei 9-68369 communique
Patent documentation 3: TOHKEMY 2005-127588 communique
Summary of the invention
In the heat-pump hot-water supply apparatus of above-mentioned patent documentation 1 record, do not consider of the influence of the energy conversion efficiency of heat pump with respect to the outer gas variation of temperature of time in late into the night band.Heat pump have outer temperature degree high more, as the COP of water heating efficiency with respect to the ratio of the consumption electric power of heat pump, the high more characteristic of promptly so-called energy conversion efficiency.If time in late into the night band for example be afternoon 11 points～to point at mornings 7, then from as band zero hour time in the late into the night afternoon 11 to as time in late into the night end of tape point at mornings 7 constantly, outer temperature degree presents the slightly variation of decline.Therefore,, the second half section by the band of time at dead of night boils running because converting to, and time in the late into the night tape travel heat pump that reduces of temperature degree outside, so the problem that exists energy conversion efficiency (COP) to reduce.
In addition, in the heat-pump hot-water supply apparatus of patent documentation 2 records, the frequency of the heat pump of running is by the chart decision of expression by (required heat/heat accumulation water time) heating efficiency of calculating and the relation of frequency.The COP of heat pump is, if compressor efficiency is fixed or the reduction of the compressor efficiency that accompanies with the reduction of frequency is little, then as the heat-pump hot-water supply apparatus of patent documentation 2 records, compares with high frequency operating power conversion efficiency height with the low frequency running.
But,, use carbon dioxide coolant as the cold-producing medium of the heat-pump hot-water supply apparatus that becomes commercialized in recent years.Carbon dioxide is with respect to fluorohydrocarbon, and the pressure reduction of high-low pressure is 3 times, and the cylinder volume is 1/3, and discharging pressure is (" floride-free technology " compiled p.50 in heat pump accumulation of heat center, ohm (オ one system) company, distribution on February 1st, 2004) about 3 times.Like this, owing to use the compressor of carbon dioxide high 3 times with respect to the pressure reduction of fluorohydrocarbon high-low pressure as cold-producing medium, so along with the reduction of compressor frequency, the influence that discharge chambe leaks increases, compressor efficiency significantly reduces.Therefore, not that the low-yield more conversion efficiency of frequency is high more with carbon dioxide as the heat-pump hot-water supply apparatus that cold-producing medium uses, be the highest frequency but there is energy conversion efficiency.Promptly, not consider to exist energy conversion efficiency be the controlling organization that boils under the situation of the highest frequency to the device of patent documentation 2.
In addition, though in the heat-pump hot-water supply apparatus of patent documentation 3 record, to making the preferential running of heating efficiency and the preferential running of running efficiency switched,, do not consider the controlling organization of switching of the running of time in late into the night band.
The objective of the invention is to obtain to keep high-energy conversion efficiency, can also help the heat-pump hot-water supply apparatus of the equilibrating of electric power needs.
To achieve these goals, the present invention is a kind of heat-pump hot-water supply apparatus, described heat-pump hot-water supply apparatus be provided with heat pump and to by this heat pump water carry out the hot water reservoir of hot water storage, it is characterized in that: be provided with set mechanism and controlling organization, described set mechanism adopts outer temperature degree to set heating efficiency; Described controlling organization makes the preferential band of time at dead of night of described heat pump turn round with the minimum of a value of the heating efficiency set by described set mechanism, described controlling organization, only making described heat pump preferentially turn round and to finish under the situation of boiling at described time in late into the night band, control described heat pump this heat pump is turned round with the heating efficiency higher than the minimum of a value of described heating efficiency with the minimum of a value of described heating efficiency.
According to the present invention, because the few stipulated time band of electric power requirement in cheap time in the late into the night band of the electricity charge preferentially carries out being essentially with energy conversion efficiency the control of the highest heating efficiency running heat pump, so, can access the energy conversion efficiency in the time of can improving hot water reservoir and boil and help the heat-pump hot-water supply apparatus of the equilibrating of electric power needs.
Other purpose of the present invention, feature and advantage are from the record of the following embodiments of the invention relevant with accompanying drawing as can be seen.
Description of drawings
Fig. 1 is the system diagram of the heat-pump hot-water supply apparatus that relates to of the embodiment of the invention 1.
Fig. 2 is the flow chart that boils control the late into the night that the expression embodiment of the invention 1 relates to.
Fig. 3 A is the minimum of a value of the boiling temps desired value of expression embodiments of the invention 1 heating efficiency of outer temperature degree and heat pump unit under the situation more than 70 ℃ and the line chart that maximum concerns.
Fig. 3 B is the minimum of a value of heating efficiency of outer temperature degree under the situation of 70 ℃ of boiling temps desired value less thaies of expression embodiments of the invention 1 and heat pump unit and the line chart of maximum relation.
Fig. 4 is the line chart of the relation of the heating efficiency of the heat pump unit of expression in the embodiments of the invention 1 and COP.
Fig. 5 A is the figure in the moment of the heat pump running of expression embodiments of the invention 1.
Fig. 5 B is the figure in the moment of the heat pump running of expression embodiments of the invention 1.
Fig. 5 C is the figure in the moment of the heat pump running of expression embodiments of the invention 1.
Fig. 6 is the flow chart that the heating efficiency of the heat pump unit of expression embodiments of the invention 2 is set control again.
Fig. 7 is the flow chart that boils control the late into the night of expression embodiments of the invention 3.
Fig. 8 A is outer temperature degree and the minimum of a value of the heating efficiency of heat pump unit and the line chart of maximum relation of boiling temps desired value under the situation more than 70 ℃ of expression embodiments of the invention 5.
Fig. 8 B is the minimum of a value of heating efficiency of outer temperature degree under the situation of 70 ℃ of boiling temps desired value less thaies of expression embodiments of the invention 5 and heat pump unit and the line chart of peaked relation.
The specific embodiment
Below, the embodiment 1 of the heat-pump hot-water supply apparatus that the present invention relates to of explanation with reference to the accompanying drawings.
Embodiment 1
Fig. 1 is the system diagram of heat-pump hot-water supply apparatus 100.
Heat-pump hot-water supply apparatus 100 is provided with hot water storage box unit 1 and heat pump unit 2.Heat supply tank unit 1 is provided with hot water reservoir 11, be connected the hot-water outlet pipe 12 on these hot water reservoir 11 tops, one end is connected the feed pipe 13 of hot water reservoir 11 bottoms, the water supply metalwork 14 that is connected and is being connected with the other end of this feed pipe 13 with the running water pipe of device outside, to be adjusted into the pressure-reducing valve 15 of appropriate hydraulic pressure from the running water that this metalwork 14 that supplies water obtains, will be from hot-water outlet pipe 12 high-temperature water and come the heat supply water mixing valve 17 that mixes since the water at low temperature of the water supply branched pipe 16 of feed pipe 13 branches, the terminal heat supply water swivel 20 that is connected of heat supply water that one end is connected with the downstream of above-mentioned heat supply water mixing valve 17 and the other end is outside with device, with heat supply water pipe 18, this heat supply water pipe 18 contains heat supply water flow sensor 19 betwixt.
In addition, hot water reservoir 11 is provided with heat pump pipe 21 and heat pump recurrent canal 22, this goes to heat pump pipe 21 that the one end is connected hot water reservoir 11 bottoms, the other end is connected with heat pump unit 2, this heat pump recurrent canal 22 is connected with hot water reservoir 11 tops, and the other end is connected with heat pump unit 2, the hot water in the hot water reservoir 11 can be through heat pump unit 2 circulations.
Be arranged on hot water reservoir 11 sides a plurality of oven temperature, degree sensors 30, be located at supply water temperature sensor 31 on the feed pipe 13, the heat supply water temperature sensor 32 that is arranged on the heat supply water pipe 18 detects each temperature, its temperature information is transmitted to hot water reservoir control part 23, hot water reservoir control part 23 carries out and the communicating by letter of heat pump control part 58 described later, remote controller (not shown go out), and carries out the control of hot water storage box unit 1.
The heat pump circuit 3 of heat pump unit 2 connects following parts and constitutes with refrigerant line, described parts are: with cold-producing medium be compressed into the compressor 51 of high temperature refrigerant, to by these compressor 51 compressions and become the cold-producing medium of high temperature and carry out the water refrigerant heat exchanger 52 of heat exchange, expansion valve 53 that the cold-producing medium that comes out from this water refrigerant heat exchanger 52 is reduced pressure, make the evaporimeter 54 of the cold-producing medium evaporation of the low-temp low-pressure that comes out from expansion valve 53 from the water that hot water storage box unit 1 is supplied with.Cold-producing medium is a carbon dioxide, can carry out the boiling of hot water of high temperature.
Water refrigerant heat exchanger 52 has refrigerant side heat-transfer pipe 52a and water side heat-transfer pipe 52b, flowing of the cold-producing medium of refrigerant side heat-transfer pipe 52a and flowing for mobile in opposite directions of the water of water side heat-transfer pipe 52b.So the cold-producing medium of HTHP and the water of low temperature carry out heat exchange.Promptly, at the inlet (being the downside of water refrigerant heat exchanger 52 among the figure) of water refrigerant heat exchanger 52 for the water of low temperature is heated by water side heat-transfer pipe 52b the time gradually, be warmed up to the temperature of the regulation of setting by heat pump control part 58 described later in the outlet (being the upside of water refrigerant heat exchanger 52 among the figure) of water refrigerant heat exchanger 52.
The entrance side of the water side heat-transfer pipe 52b of water refrigerant heat exchanger 52 goes to heat pump pipe 21 to be connected with above-mentioned, and configuration can be controlled case circulating pump 56, the water refrigerant heat exchanger water flow sensor 57 of capacity in the pipeline way.In addition, the outlet side of water side heat-transfer pipe 52b is connected with above-mentioned heat pump recurrent canal 22.
Be arranged on compressor discharge temperature sensor 35 on the refrigerant pipe of compressor 51 outlet sides, be arranged on the air intake side of evaporimeter 54 outer temperature degree sensor 36, be arranged on the water refrigerant heat exchanger water inlet temperature sensor 37 on the heat pump pipe 21 and be arranged on the temperature that water refrigerant heat exchanger water outlet temperature sensor 38 on the heat pump recurrent canal 22 detects each one, detected temperature information is transmitted to heat pump control part 58, heat pump control part 58 carries out and the communicating by letter of above-mentioned hot water reservoir control part 23, and carries out the control of heat pump unit 2.
Action when the following describes heat supply water.If the not shown heat supply water end that goes out that will be connected with heat supply water swivel 20 is opened, then the high-temperature water on hot water reservoir 11 tops flows in the hot-water outlet pipe 12 because of the hydraulic pressure of the running water pipe that is connected with water supply metalwork 14, and, the water supply of low temperature flows in the water supply branched pipe 16, and high-temperature water and water at low temperature flow out from heat supply water is terminal through heat supply water mixing valve 17, heat supply water flow sensor 19, heat supply water swivel 20.At this moment, flow sensor 19 detects current, hot water reservoir control part 23 control is from hot-water outlet pipe 12 high-temperature water with from the ratio of the water at low temperature of water supply branched pipe 16, so that the temperature that heat supply water temperature sensor 32 detects becomes the heat supply coolant-temperature gage of being set by remote controller (not shown go out).The amount that the water supply of low temperature is used to the high-temperature-hot-water on hot water reservoir 11 underfeed hot water reservoir 11 tops.
Action when the following describes heat accumulation water.During hot water in boiling hot water reservoir 11, the control of turning round of 58 pairs of heat pump circuit 3 of heat pump control part, and to case circulating pump 56 control of turning round.At this moment, as described later, carry out the rotary speed control of compressor 51, the aperture control rotary speed control of case circulating pump 56 in addition of expansion valve 53.The hot water that flows out from hot water reservoir 11 bottoms because of the running of case circulating pump 56 flows into water refrigerant heat exchanger 52 through going to heat pump pipe 21, heated by the cold-producing medium of the high temperature of heat pump circuit 3, return hot water reservoir 11 tops through heat pump recurrent canal 22, the hot water of high temperature is stored in view of the above.
Then, use Fig. 2～Fig. 4 that the action of boiling control the late into the night is described.Time in late into the night band is the cheap time bands of the electricity charge, for example be afternoon 11 to point at mornings 7.Boil in the flow chart of control in the late into the night of Fig. 2, hot water reservoir control part 23 begins to boil the late into the night control (S1) at afternoon 11 points of the zero hour of being with as the time in the late into the night.At first, boil the setting (S2) of heat Qa.Mean value, standard deviation and the stand-by heat sum of boiling the use heat of heat Qa conduct during 7 days are before this calculated.
1 day (from the previous day afternoon 11 to afternoon 11 points on the same day) use heat Qc calculate by following formula.
Qc=Qz1+Qd-Qz......... (formula 1)
Here, Qz1 is the after-heat of afternoon 11 hot water reservoir 11 the previous day, and Qd is the heat that adds of heat pump unit 2, and Qz is afternoon 11 after-heat on the same day.After-heat Qz1, Qz are by being calculated by each oven temperature, degree sensor 30 detected temperature of hot water reservoir 11 and the volume of being distinguished at above-below direction by the temperature difference of supply water temperature sensor 31 detected temperature and the hot water reservoir 11 that will contain each oven temperature, degree sensor 30 and the density of water and the sum of products of specific heat.In addition, adding heat Qd calculates by the integrated value of the duration of runs of the setting value (required heating efficiency) of the heating efficiency of heat pump unit 2 described later.
Hot water reservoir control part 23 is kept the use heat during 7 days before this in mind, obtains mean value and standard deviation, considers to use the inconsistent of heat, will boil heat Qa and calculate as mean value, standard deviation and stand-by heat sum.Stand-by heat for example is the heat that can supply with the hot water of 42 ℃ of heat supply coolant-temperature gages, heat supply water yield 100L.
Then, carry out the setting (S3) of boiling temps desired value tp.Boiling temps tp calculates by following formula
Tp=Qa/ (ρ cV α)+twi......... (formula 2)
But in order to prevent the generation of Legionella, the boiling temps desired value tp that calculates is set at 65 ℃ under the situation of 65 ℃ of less thaies.Here, Qa is the above-mentioned heat that boils, and ρ is a water density, and c is a water specific heat, and V is the volume of hot water reservoir 11, and α is a volumetric efficiency, and twi is the supply water temperature that the supply water temperature sensor 31 of Fig. 1 detects.Volumetric efficiency α has considered following situation; promptly; in order to protect heat pump circuit 3, in the water inlet temperature of water refrigerant heat exchanger 52 for for example stopping to boil 55 ℃ the time, so the temperature of hot water reservoir 11 bottoms can not reach boiling temps tp than the low temperature of boiling temps tp.
Then, carry out the setting (S4) of boiling time Tn.As mentioned above, be with as the time in the late into the night with afternoon 11 to 7 of mornings 8 hours.Boiling time Tn for example is set at 5 hours.These 5 hours be that 1 of the electric power requirement is few in time in the late into the night band morning is to 6 time of morning.This boiling time Tn for example also can consider the electric power requirement in each season, according to changing season (calendar).
Then, carry out the minimum of a value Wmin of heating efficiency of heat pump unit 2 and the setting (S5) of maximum Wmax.Fig. 3 A, Fig. 3 B be respectively at boiling temps desired value tp more than 70 ℃ and under the situation of 70 ℃ of less thaies, represent the figure of the relation of the minimum of a value Wmin of outer temperature degree and heating efficiency and maximum Wmax.Promptly, can determine the minimum of a value Wmin and the maximum Wmax of heating efficiency according to boiling temps desired value tp and outer temperature degree (detected value of outer temperature degree sensor 36).70 ℃ of boiling temps desired value less thaies, when outer temperature degree was ta, the relation table of the heating efficiency of heat pump unit 2 and COP (heating efficiency is with respect to the ratio that consumes electric power) was shown among Fig. 4 in Fig. 3 B.Mainly change heating efficiency by the rotary speed (frequency) that changes compressor 51.Heat pump unit 2 has shown that COP has the characteristic of peak with respect to heating efficiency.Then, the minimum of a value with the heating efficiency of the heat pump unit 2 shown in Fig. 3 B is roughly the highest heating efficiency as COP shown in Figure 4.In addition, the maximum of the heating efficiency of Fig. 3 B is, when temperature was spent outside each, at dead of night in the absence of time band heat supply water, maximum also was the heating efficiency of finishing to boil in 8 hours be with of time at dead of night.Therefore, among Fig. 3 B, the COP ratio when turning round with little heating efficiency is higher when turning round with big heating efficiency.
Then, carry out the calculating (S6) of the required heating efficiency W of heat pump unit 2.Required heating efficiency W calculates by following formula.
W=(Qa-Qz)/(Tn β) ... ... (formula 3)
Here, Qa is the above-mentioned heat that boils, and Qz is afternoon 11 after-heat on the above-mentioned same day, and Tn is above-mentioned boiling time, and β is the efficiency of heating surface.Efficiency of heating surface β is when boiling of heat pump unit 2 turned round, considered in when beginning, heating efficiency does not satisfy the efficiency of heating surface of the reduction of the average heating efficiency that the situation of required heating efficiency W, defrosting running when outer temperature degree is low cause when finishing, according to outer temperature degree value is set.
Then, whether the required heating efficiency W that calculates is in the scope of the minimum of a value Wmin of heating efficiency of the heat pump unit 2 that step S5 sets and maximum Wmax and judges,, carry out required processing (S7～S15) at various situations.
Under the situation of the minimum of a value Wmin of the heating efficiency that step S5 sets (S7Y), required heating efficiency W as minimum of a value Wmin (S8), is oppositely calculated boiling time Tn (S9) by reformed required heating efficiency in required heating efficiency W deficiency.At this moment, boiling time Tn calculates by following formula.
Tn=(Qa-Qz)/(W β) ... ... (formula 4)
Calculate by this, boiling time Tn is 5 hours weak points than the value of setting at step S4.Therefore, just can finish during 1 of morning that the electric power requirement is few in the time band at dead of night to 6 of mornings and boil.
Then, carry out the setting (S10) of the Tf transfer time finish time.At this moment, for transferring to electric power requirement point at few mornings 67 of mornings finish time that will boil time in the finish time from late into the night band, Tf is set at 1 hour with the transfer time finish time.
At required heating efficiency W is under the situation more than the minimum of a value Wmin of the heating efficiency that step S5 sets (S7N), and then under the situation more than the maximum Wmax (S11Y), required heating efficiency W as maximum Wmax (S12), is oppositely calculated boiling time Tn (S13) by the required heating efficiency that is changed.At this moment, boiling time Tn calculates by the formula identical with (formula 4).Calculate by this, boiling time Tn is 5 little durations than the value of setting at step S4.Therefore, only can not finish during 1 of morning that the electric power requirement is few in the time band at dead of night to 6 of mornings and boil, have during 6 of required mornings in addition to 7 of mornings and afternoon 11 of the previous day also boil running during 1 of morning of next day.
Then, carry out the setting (S14) of the Tf transfer time finish time.At this moment, to boil the finish time in order not shifting, but to be the point at mornings 7 finish time of time in late into the night band, Tf is set at 0 hour with the transfer time finish time.
Under the situation in required heating efficiency W is in the scope of the heating efficiency that step S5 sets (S11N), boiling time Tn still is the value set at step S4 promptly 5 hours, can finish during 1 of morning that the electric power requirement is few in the time band to 6 of mornings at dead of night and boil.
At this moment, carry out the setting (S15) of the Tf transfer time finish time.In order to transfer to electric power requirement point at few mornings 67 of mornings finish time that will boil time in the finish time from late into the night band, Tf is set at 1 hour with the transfer time finish time.
As described above, at step S7～S15 decision boiling time Tn and required heating efficiency W, then, set and boil the Ts zero hour (S16).Boiling zero hour Ts calculates by following formula.
Ts=time in the late into the night end of tape moment-Tf-Tn......... (formula 5)
Here, Tf is the above-mentioned transfer time finish time, and Tn is a boiling time.In addition, time in the late into the night end of tape is points at mornings 7 constantly.
Then, carry out current time and whether reach the judgement (S17) of boiling the Ts zero hour.Reached (S17Y) under the situation of boiling the Ts zero hour at current time, carried out the running (S18) of heat pump.Do not reach (S17N) under the situation of boiling the Ts zero hour at current time, carry out the judgement of step S17 repeatedly.
Heat pump running (S18) is carried out in the following manner.At this moment, hot water reservoir control part 23 sends heat pump running instruction to heat pump control part 58, provides the value of boiling temps desired value tp, required heating efficiency W simultaneously.The rotary speed of heat pump control part 58 control compressors 51, thus make water outlet temperature sensor 38 detected water outlet temperatures become boiling temps desired value tp by water refrigerant heat exchanger 52.
In addition, heat pump control part 58 carries out the aperture control of expansion valve 53, becomes the desired value td0 that calculates by following formula so that make by compressor discharge temperature sensor 35 detected discharge temperatures.
Td0=f (tp, thwi, ta, W) ... ... (formula 6)
Here, tp is the boiling temps desired value, thwi is the water inlet temperature sensor 37 detected water inlet temperature by water refrigerant heat exchanger 52, ta is by outer temperature degree sensor 36 detected outer temperature degree, W is required heating efficiency, and the desired value td0 of discharge temperature represents with their function f.The COP that desired value is set to heat pump unit 2 is roughly the highest discharge temperature.Here, because with the function of desired value as required heating efficiency W, so, at the minimum of a value Wmin of the heating efficiency shown in Fig. 3 B and the gamut of maximum Wmax, can carry out the running of heat pump efficiently.
In addition, heat pump control part 58 carries out the control of the rotary speed of case circulating pump 56, so that make the water flow sensor 57 detected discharges by water refrigerant heat exchanger 52 become the desired value Lw0 that calculates by following formula.
Lw0=W/ ((ρ c) (tp-thwi)) ... ... (formula 7)
Here, W is required heating efficiency, and ρ is a water density, and c is a water specific heat, and tp is the boiling temps desired value, and thwi is the water inlet temperature sensor 37 detected water inlet temperature by water refrigerant heat exchanger 52.
Heat pump control part 58 is by the rotary speed control of above-mentioned compressor 51 and the rotary speed control of case circulating pump 56, and carrying out boiling temps is tp, and heating efficiency is the running of boiling of W.
In the heat pump operation process, whether the oven temperature, degree sensor 30 that hot water reservoir control part 23 is stipulated reaches the predefined above judgement (S19) of end temp of boiling.Not reaching (S19N) under the situation of boiling more than the end temp, carry out the judgement of step S19 repeatedly.Reaching (S19Y) under the situation of boiling more than the end temp, hot water reservoir control part 23 sends heat pump halt instruction (S20) to heat pump control part 58, finishes and boils (S21) late into the night.In addition, in order to calculate the above-mentioned heat Qd that adds, in above-mentioned heat pump operation process, carry out the calculating of the time integral of required heating efficiency W.
As described above in detail, boil running the late into the night and be divided into 3 patterns (referring to Fig. 5 A-Fig. 5 C).Promptly, first (Fig. 5 A) be at dead of night time band (from afternoon 11 to point at mornings 7) still less stipulated time band of electric power requirement (from afternoon 1 to point at mornings 6), be the turn round pattern of heat pump of roughly the highest heating efficiency with the efficient of heat pump.At this moment, will from the stipulated time end of tape constantly (point at mornings 6) moment of having deducted required boiling time be set at and boil the zero hour, the second half section of band shifts and boils running at the appointed time.
Second (Fig. 5 B) is only can not be at the appointed time with finishing the situation of boiling by the running under the heating efficiency of peak efficiency roughly.This is to finish for band at the appointed time to boil and with than the efficient of the heat pump pattern for the high heating efficiency running heat pump of roughly the highest heating efficiency.At this moment, with use the stipulated time band (from 1 of morning to point at mornings 6) roughly All Time finish and add the heating efficiency running heat pump that boils.
The 3rd (Fig. 5 C) is even be can not be at the appointed time with finishing the situation of boiling with the running of maximum heating ability.Finish for the band of time at dead of night and to boil, with maximum heating ability running heat pump.At this moment, will from time in the late into the night end of tape constantly (point at mornings 7) moment of having deducted required boiling time be set at and boil the zero hour, the second half section of band shifts and boils running at the appointed time.
In addition, in the present embodiment, illustrated at the appointed time the end of tape constantly or time in the late into the night end of tape finish constantly and boil, but, also can boil, for example set the heating efficiency of heat pump more again, make the duration of runs short slightly in order before this moment, to fulfil ahead of schedule.
According to first operation mode, because be roughly the highest heating efficiency running heat pump with heat pump efficiency, so, can be with the high efficiency heat-pump hot-water supply apparatus that turns round.
In addition, according to first and second operation mode, because with the little heating efficiency heat pump that turns round for a long time, so, the running of boiling of heat pump shifts to an earlier date the zero hour, increased the duration of runs of the high time band of the outer temperature degree of running time in late into the night band, heat pump can turn round under the high condition of energy conversion efficiency.
According to first and second operation mode, because carry out the running of heat pump at dead of night in 6 stipulated time of the morning band at 1 of morning that the electric power requirement is few in the time band, so, can help the equilibrating of electric power needs.
In addition, according to the 3rd operation mode, even boiling under the many situations of heat, also the time band is finished effectively and is boiled at dead of night.
With reference to Fig. 6 embodiments of the invention 2 are described.In the present embodiment, the heat pump running of boiling the late into the night shown in Figure 2 among the step S18 of control flow chart is different with embodiment 1.In the present embodiment, set the heating efficiency of heat pump by each set time.
Hot water reservoir control part 23 begins the control of setting again (S30) of heating efficiency when heat pump turns round.Under the situation of the not enough maximum Wmax of current heating efficiency (S31Y), carry out the setting again of heating efficiency, under the situation that is maximum Wmax (S31N), do not carry out the setting again of heating efficiency, but finishing control (S32).Promptly, when in band, carrying out the heat pump running from 1 of morning to 6 stipulated time of morning, carry out the setting again of heating efficiency.
The calculating (S33) of current heat Qx is at first carried out in setting again of heating efficiency.Current heat Qx is by being calculated by each oven temperature, gap sensor 30 detected temperature of hot water reservoir 11 and the volume of being distinguished at above-below direction by the temperature difference of supply water temperature sensor 31 detected temperature and the hot water reservoir 11 that will contain each oven temperature, degree sensor 30 and the density of water and the sum of products of specific heat.
Then, boil the calculating (S34) of Tr remaining time.Boiling remaining time Tr calculates by following formula.
Tr=time in the late into the night end of tape moment-Tf-current time ... ... (formula 8)
Here, time in the late into the night end of tape is points at mornings 7 constantly, and Tf is the transfer time finish time, is 1 hour that sets in the step S10 of Fig. 2 or S15.
Then, carry out the minimum of a value Wmin of heating efficiency of heat pump unit 2 and the setting (S35) of maximum Wmax.The method of setting is identical with the step S5 of Fig. 2.
Then, carry out the calculating (S36) of the required heating efficiency W of heat pump unit 2.Required heating efficiency W calculates by following formula.
W=(Qa-Qx)/(Tr β) ... ... (formula 9)
Here, Qa is the heat that boils of setting forth in the foregoing description 1, and Qx is above-mentioned current heat, and Tr is above-mentioned boiling remaining time, and β is the efficiency of heating surface of explanation among the embodiment 1.
Then, whether the required heating efficiency W that calculates is in the scope of the minimum of a value Wmin of heating efficiency of the heat pump unit 2 that step S35 sets and maximum Wmax and judges, for carrying out required processing (S37～S40) under the extraneous situation.In required heating efficiency W deficiency under the situation of the minimum of a value Wmin of the heating efficiency that step S35 sets (S37Y), with required heating efficiency W as minimum of a value Wmin (S38).In addition, under the required heating efficiency W situation bigger (S39Y) than Wmax, with required heating efficiency W as maximum Wmax (S40).In addition, under the situation of step S39Y, though owing to required heating efficiency is suppressed by maximum Wmax, the end of tape is not finish before 6 of mornings to boil constantly at the appointed time, but the time quantum that surpasses is few, and the time end of tape is to finish before 7 of mornings to boil constantly at dead of night.
Then, carry out the setting again (S41) of required heating efficiency W.At this moment, hot water reservoir control part 23 provides the value of new required heating efficiency W to heat pump control part 58.The heat pump control part carries out the running control of heat pump unit 2 according to the value of new required heating efficiency W.
Hot water reservoir control part 23 during the stipulated time (S42), carries out the control of setting again of above-mentioned heating efficiency in the every process of timer.
As mentioned above, by set the heating efficiency of heat pump subtly in each set time, in the stipulated time band till 1 of morning that the electric power requirement tails off in the time band to 6 of mornings at dead of night, with the as far as possible little heating efficiency heat-pump hot-water supply apparatus that efficiently turns round.In addition, finish effectively in can being with at the appointed time and boil.
Embodiment 3
With reference to Fig. 7 embodiments of the invention 3 are described.In the present embodiment, boil in the control, boiling time Tn was changed to 8 hours from 5 hours in the late into the night of embodiment 1.Among Fig. 7,, omit explanation with the identical symbolic representation step identical with Fig. 2.
Step S1～S3 is identical with embodiment 1.With the boiling time Tn of step S4 ' be set at time in late into the night band (from afternoon 11 to point at mornings 7) promptly, 8 hours.At step S6, establishing boiling time band Tn is 8 hours, carries out the calculating of required heating efficiency W.
In step S7 ', at required heating efficiency W deficiency (S7 ' Y) under the situation of the minimum of a value Wmin of the heating efficiency that step S5 sets, required heating efficiency W as minimum of a value Wmin (S8), by the required heating efficiency that is changed, is oppositely calculated boiling time Tn (S9).
In other cases (S7 ' N), suppose that required heating efficiency W is in the scope of the heating efficiency of step S5 setting, uses the value that does not add change.In addition, as described in embodiment 1, because the maximum Wmax of the heating efficiency of Fig. 3 is, when temperature is spent outside each, time is with does not at dead of night have under the situation of heat supply water, maximum also is the heating efficiency of finishing to boil in 8 hours of time band at dead of night, so required heating efficiency W is the following value of maximum Wmax.
After this step S16～S21 is identical with embodiment 1.
As mentioned above, be set at than 5 little durations 8 hours,, can keep high efficiency with littler heating efficiency running heat-pump hot-water supply apparatus with respect to the identical required heat that boils by boiling time with heat pump.
Embodiment 4
Embodiments of the invention 4 are described.In the present embodiment, the heat pump running of boiling the late into the night shown in Figure 7 among the step S18 of control flow chart is different with the foregoing description 3.In the present embodiment, with the heating efficiency of the numerical value behind the required heating efficiency W that coefficient k be multiply by heat pump as the heat pump running.
Coefficient k is calculated by following formula.
K=1+d-2d/Tn * T......... (formula 10)
Here, d is a branch value, and Tn is a boiling time, is 8 hours, and T is the heat pump duration of runs.Coefficient k is the linear function of the T duration of runs, when T=0, and k=1+d, when T=Tn, k=1-d.Promptly, by coefficient k being multiply by required heating efficiency W, the heating efficiency of the heat pump first half of time band at dead of night is bigger than required heating efficiency W, latter half of littler than required heating efficiency W.In addition, carrying out (under the situation of the step S7 ' N of Fig. 7) under the situation of boiling in 8 hours, carrying out this control and handle.In addition, the heating efficiency of heat pump is in the minimum of a value Wmin that sets by Fig. 3 arrives the scope of maximum Wmax.
According to above described control, because the first half of time band boils and boils the over half of heat the late into the night at dead of night, so, turn round under the condition that the energy conversion efficiency of the outer temperature degree height in the time band, first half improves at dead of night, can keep high efficiency.
Embodiment 5
Embodiments of the invention 5 are described.In the present embodiment, the establishing method of heating efficiency minimum of a value Wmin of step S5 of flow chart that boils control the late into the night shown in Figure 7 is different with embodiment 3.In the present embodiment, the heating efficiency minimum of a value Wmin that makes heat pump is roughly 2/3rds of heating efficiency maximum Wmax.
The boiling temps desired value that Fig. 8 A, Fig. 8 B represent present embodiment is respectively more than 70 ℃ and the minimum of a value and the peaked relation of the heating efficiency of outer temperature degree under the situation of 70 ℃ of less thaies and heat pump unit 2.Make the minimum of a value Wmin of heating efficiency bigger for the minimum of a value Wmin of the highest heating efficiency roughly, be roughly 2/3rds (66%) of maximum Wmax than the efficient of Fig. 3 A of embodiment 1, the expression heat pump shown in Fig. 3 B.At this moment, in 66% to 100% scope of the maximum heating ability of heat pump, heating efficiency is more little, and energy conversion efficiency is high more.
Handle by this control, heat pump unit 2 time band at dead of night boils running with 66% of maximum heating ability to 100%, minimum also turns round with 66% of maximum heating ability, compare with embodiment 3, the boiling time Tn that calculates at the step S9 of the flow chart of Fig. 7 reduces, therefore, the shift in the rear of being with to the time in the late into the night at the boiling time Ts zero hour of S16 calculating.
By above-mentioned described control, can keep high energy conversion efficiency, and can suppress the increase of the electric power amount of the high first half of electric power needs in time in the late into the night band.
Though in the present embodiment, the heating efficiency minimum of a value Wmin that makes heat pump is roughly 2/3rds of heating efficiency maximum Wmax,, be also can access same effect under 50% to 80% the situation.
In addition, though in the above-described embodiments, be the cheap time bands of the electricity charge as time in late into the night band,, at the time band that heat supply water needs or electric power need be little, the present invention also can implement equally.
In addition, in the above-described embodiments, in order to obtain required heating efficiency, the rotary speed control of carrying out compressor is so that make boiling temps reach desired value, and the rotary speed control of carrying out the case circulating pump is so that the water yield reaches desired value, still, also can set rotary speed according to the relation of heating efficiency and compressor rotary speed, the rotary speed of control cabinet circulating pump so that make boiling temps reach desired value, gets final product so long as can access the control method of required heating efficiency roughly.
According to the present invention, because band preferentially carries out with the control of energy conversion efficiency for roughly the highest heating efficiency running heat pump, so the energy conversion efficiency the when case of heat-pump hot-water supply apparatus boils running improves at the appointed time.
Though above-mentioned record at be embodiment,, the present invention is not limited thereto, those skilled in the art certainly carry out various changes and modification in the scope that does not break away from the spirit of the present invention and the technical scheme of asking for protection.
Claims (12)
1. heat-pump hot-water supply apparatus, described heat-pump hot-water supply apparatus be provided with heat pump and to by this heat pump water carry out the hot water reservoir of hot water storage, it is characterized in that:
Be provided with set mechanism and controlling organization; Described set mechanism adopts outer temperature degree to set heating efficiency, and described controlling organization makes the preferential time at dead of night of described heat pump be with energy conversion efficiency with described heat pump to be essentially the highest heating efficiency and turns round,
Described controlling organization, turn round and to finish under the situation of boiling at described time in late into the night band, control described heat pump this heat pump is turned round to be essentially the high heating efficiency of the highest heating efficiency than described energy conversion efficiency only making described heat pump preferentially be essentially the highest heating efficiency with the energy conversion efficiency of described heat pump.
2. heat-pump hot-water supply apparatus, described heat-pump hot-water supply apparatus be provided with heat pump and to by this heat pump water carry out the hot water reservoir of hot water storage, it is characterized in that: be provided with set mechanism and controlling organization,
Described set mechanism adopts outer temperature degree to set heating efficiency;
Described controlling organization makes the preferential band of time at dead of night of described heat pump turn round with the minimum of a value of the heating efficiency set by described set mechanism,
Described controlling organization, only making described heat pump preferentially turn round and to finish under the situation of boiling at described time in late into the night band, control described heat pump this heat pump is turned round with the heating efficiency higher than the minimum of a value of described heating efficiency with the minimum of a value of described heating efficiency.
3. heat-pump hot-water supply apparatus as claimed in claim 2 is characterized in that described controlling organization is provided with set mechanism, and described set mechanism is set at described energy conversion efficiency with the minimum of a value of described heating efficiency and is essentially the highest heating efficiency.
4. heat-pump hot-water supply apparatus as claimed in claim 2, it is characterized in that, described controlling organization is provided with set mechanism, and described set mechanism is set at the minimum of a value of described heating efficiency than described energy conversion efficiency and is essentially the big heating efficiency of the highest heating efficiency.
5. heat-pump hot-water supply apparatus as claimed in claim 2 is characterized in that, the minimum of a value of described heating efficiency is set to peaked 50～80% of described heating efficiency.
6. heat-pump hot-water supply apparatus as claimed in claim 2 is characterized in that, described control device carries out boiling the control over half that time in late into the night band all boils heat at the first half of described time in late into the night band.
7. heat-pump hot-water supply apparatus, described heat-pump hot-water supply apparatus be provided with heat pump and to by this heat pump water carry out the hot water reservoir of hot water storage, it is characterized in that, be provided with:
Adopt outer temperature degree to set the set mechanism of heating efficiency;
Make the stipulated time in the preferential band of time at dead of night of described heat pump be with energy conversion efficiency to be essentially the controlling organization that the highest heating efficiency turns round with described heat pump;
Being essentially the highest running in the energy conversion efficiency of only carrying out described heat pump can not finish under the situation of boiling at described stipulated time band, makes described heat pump be essentially the controlling organization that the high heating efficiency of the highest heating efficiency turns round with the specific energy conversion efficiency;
Turn round and to finish under the situation of boiling at described stipulated time band with maximum, make described heat pump be with the controlling organization that also turns round in the described time in the late into the night in the heating efficiency of setting with described set mechanism.
8. heat-pump hot-water supply apparatus as claimed in claim 7, it is characterized in that, be provided with and finish under the situation of boiling at described stipulated time band, make described heat pump be essentially the controlling organization that the highest big heating efficiency of described heating efficiency turns round with the specific energy conversion efficiency at described time in late into the night band.
9. heat-pump hot-water supply apparatus as claimed in claim 7 is characterized in that, is provided with to finish under the situation of boiling the controlling organization that described heat pump is turned round with the maximum heating ability at described time in late into the night band at described stipulated time band.
10. heat-pump hot-water supply apparatus as claimed in claim 1 is characterized in that, is provided with each set time in the band of time at dead of night to set the set mechanism of the heating efficiency of described heat pump.
11. heat-pump hot-water supply apparatus as claimed in claim 1 is characterized in that, is provided with hot water reservoir control part and heat pump control part; Described heat pump control part receives the command signal of heating efficiency from this hot water reservoir control part.
12. heat-pump hot-water supply apparatus as claimed in claim 1 is characterized in that, the cold-producing medium of described heat pump has used carbon dioxide.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008002705A JP2009162458A (en) | 2008-01-10 | 2008-01-10 | Heat pump hot water supply system |
| JP2008-002705 | 2008-01-10 | ||
| PCT/JP2008/070377 WO2009087811A1 (en) | 2008-01-10 | 2008-11-10 | Heat-pump hot-water supply apparatus |
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|---|---|
| CN101910747A true CN101910747A (en) | 2010-12-08 |
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| CN200880123498.3A Pending CN101910747A (en) | 2008-01-10 | 2008-11-10 | Heat-pump hot-water supply apparatus |
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| JP (1) | JP2009162458A (en) |
| KR (1) | KR20100114022A (en) |
| CN (1) | CN101910747A (en) |
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-
2008
- 2008-01-10 JP JP2008002705A patent/JP2009162458A/en active Pending
- 2008-11-10 WO PCT/JP2008/070377 patent/WO2009087811A1/en active Application Filing
- 2008-11-10 KR KR1020107015154A patent/KR20100114022A/en not_active Application Discontinuation
- 2008-11-10 CN CN200880123498.3A patent/CN101910747A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574910A (en) * | 2012-08-09 | 2014-02-12 | 珠海格力电器股份有限公司 | Water pump control method and device of heat pump water heater and heat pump water heater |
| CN103574910B (en) * | 2012-08-09 | 2016-03-16 | 珠海格力电器股份有限公司 | Water pump control method and device of heat pump water heater and heat pump water heater |
| CN113785162A (en) * | 2019-05-10 | 2021-12-10 | 三菱电机株式会社 | Heat storage system |
| CN113785162B (en) * | 2019-05-10 | 2023-02-17 | 三菱电机株式会社 | Heat storage system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20100114022A (en) | 2010-10-22 |
| JP2009162458A (en) | 2009-07-23 |
| WO2009087811A1 (en) | 2009-07-16 |
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Application publication date: 20101208 |