EP2228610B1 - Dispositif d'alimentation en eau chaude - Google Patents

Dispositif d'alimentation en eau chaude Download PDF

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Publication number
EP2228610B1
EP2228610B1 EP08849821A EP08849821A EP2228610B1 EP 2228610 B1 EP2228610 B1 EP 2228610B1 EP 08849821 A EP08849821 A EP 08849821A EP 08849821 A EP08849821 A EP 08849821A EP 2228610 B1 EP2228610 B1 EP 2228610B1
Authority
EP
European Patent Office
Prior art keywords
hot water
achievement
heating
remote controller
water supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP08849821A
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German (de)
English (en)
Other versions
EP2228610A1 (fr
EP2228610A4 (fr
Inventor
Akihiro Shimozakai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanden Corp
Original Assignee
Sanden Corp
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Filing date
Publication date
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Publication of EP2228610A1 publication Critical patent/EP2228610A1/fr
Publication of EP2228610A4 publication Critical patent/EP2228610A4/fr
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Publication of EP2228610B1 publication Critical patent/EP2228610B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • 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
    • 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
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/06—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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
    • F24D2240/12—Placed outside of

Definitions

  • the present invention relates to a hot water supply apparatus of which a display of a remote controller is capable of displaying information of status of passed operation and the like.
  • a hot water supply apparatus having a memory for memorizing information of the amount of energy consuming for heating water, and a display for displaying the information memorized in the memory, and the hot water supply apparatus displays the amount of energy consuming of every period, such as every 24 hours (see the patent document 1).
  • a display is provided on a remote controller provided on a wall of a kitchen or a bathroom, and the display shows a consumed electrical power of both of today and yesterday to aim at increasing the consciousness for saving energy.
  • the consumed electrical power of both today and yesterday is displayed, it is impossible to know a status of the actual operation compared with a set-up operation which is set up as the most ideal operation.
  • An object of the present invention is to provide a hot water supply apparatus capable of facilitating the energy saving.
  • a hot water supply apparatus comprising the features as defined in the characterizing portion of claim 1.
  • FIGS. 1 and 2 show a first embodiment.
  • FIG. 1 is a schematic configuration view of a hot water supply apparatus
  • FIG. 2 is a display portion of a remote controller for kitchen and a remote controller for bathroom for showing an achievement rate.
  • the hot water supply apparatus comprises a heat pump unit 10 for heating water using electrical power, a tank unit 20 for storing hot water heated by the heat pump unit 10, a water supply pipe 30 for supplying water to the tank unit 20, to a bathroom, and to a kitchen, a hot water supply pipe 40 for supplying hot water stored in the tank unit 20 to the bathroom and the kitchen, a first circulation circuit 50 for circulating water between the heat pump unit 10 and tank unit 20, and a second circulation circuit 60 for circulating water in a bathtub 61 between the tank unit 20 and the bathtub 61 in the bathroom.
  • This hot water supply apparatus is to store hot water heated by the heat pump unit 10 in the tank unit 20 so that hot water stored in the tank unit 20 is supplied for washing dishes in the kitchen, for bathing in the bathroom, and etc., and also hot water stored in the tank unit 20 is supplied as a heat source for reheating stored hot water in the bathtub 61.
  • the heat pump unit 10 comprises an electrically-powered compressor 11, a gas cooler 12, an expansion valve 13, and an evaporator 14, which are connected in series by pipes made by copper or stainless steel so as to configure a refrigerant circuit 10a. Also, the refrigerant circuit 10a is filled with carbon dioxide as a refrigerant of which high-pressure side becomes in a supercritical state.
  • the gas cooler 12 is a refrigerant-water heat exchanger in which a flow passage on a water side forms a part of the first circulation circuit 50.
  • the evaporator 14 is a refrigerant-air heat exchanger, and a fan 14a is provided in vicinity of the evaporator 14 so that air which conducts heat exchange with the refrigerant in the evaporator 14 can flow through the evaporator.
  • the tank unit 20 comprises a hot water storage tank 21, a reheating heat exchanger 22 for conducting heat exchange between water in the bathtub 61, which flows through the second circulation circuit 60, and hot water in the hot water storage tank 21, and a third circulation circuit 23 for circulating hot water between the hot water storage tank 21 and the reheating heat exchanger 22.
  • the hot water storage tank 21 is made of stainless steel or fiber reinforced plastic (FRP), etc., and is covered with a heat insulating material such as glass-wool, foamed urethane, or etc. so as to prevent heat radiation of a stored hot water. Also, in this embodiment, as the hot water storage tank 21, a 370 liters tank is used.
  • the reheating heat exchanger 22 is a water-water heat exchanger, and one side of its flow passage of the reheating heat exchanger 22 is a part of the second circulation circuit 60, and the other side of the flow passage of the reheating heat exchanger 22 is a part of the third circulation circuit 23.
  • the third circulation circuit 23 is configured by connecting in series an upper part of the hot water storage tank 21, the reheating heat exchanger 22, a circulation pump 23a, and a lower part of the hot water storage tank 21 by copper pipes or stainless steel pipes. Hot water in the upper part of the hot water storage tank 21 returns to the lower part of the hot water storage tank 21 via the reheating heat exchanger 22 by the circulation pump 23a.
  • the water supply pipe 30 comprises a first water supply pipe 31 connected to the lower part of the hot water storage tank 21, a second water supply pipe 32 connected to the hot water supply pipe 40, and a third water supply pipe 33 connected to faucets A in the bathroom and the kitchen.
  • a pressure reducing valve 30a is provided on the water supply pipe 30 which is located at an upper stream side relative to the first, second, and third water supply pipes 31, 32, 33 so as to reduce pressure of water supplied from waterworks to make the water pressure be at a predetermined pressure and make the water flow.
  • the hot water supply pipe 40 comprises a first hot water supply pipe 41, one side of which is connected to the upper part of the hot water storage tank 21 and the other side of which is connected to a first mixing valve 40a and a second mixing valve 40b for mixing hot water in the hot water storage tank 21 with water which flows through the second water supply pipe 32, a second hot water supply pipe 42, one side of which is connected to the first mixing valve 40a and the other side of which is connected to the faucets A in the bathroom and the kitchen, and a third hot water supply pipe 43, one side of which is connected to the second mixing valve 40b and the other side of which is connected to the second circulation circuit 60.
  • Hot water in the upper part of the hot water storage tank 21 flows through the hot water supply pipe 40 in accordance with pressure of water flows into the hot water storage tank 21 from the first water supply pipe 31. Also, on the third hot water supply pipe 43, a solenoid valve 43a for opening and closing the flow passage of the third hot water supply pipe 43 is provided.
  • the first circulation circuit 50 is configured by connecting in series the lower part of the hot water storage tank 21, a circulation pump 51, the gas cooler 12, and the upper part of the hot water storage tank 21 by copper pipes, stainless steel pipes, vulcanized polyethylene pipes, or etc., water in the lower part of the hot water storage tank 21 flows into the upper part of the hot water storage tank 21 via the gas cooler 12 by the circulation pump 51.
  • the second circulation circuit 60 is configured by connecting in series the bathtub 61, the circulation pump 62, the reheating heat exchanger 22, and the bathtub 61 by copper pipes, stainless steel pipes, vulcanized polyethylene pipes, or etc., water in the bathtub 61 returns to the bathtub 61 via the reheating heat exchanger 22 by the circulation pump 62.
  • electric power for operating the hot water supply apparatus is supplied from an electric power company, which is a combination of an electric power generated by a plurality of methods, such as thermal power generation, nuclear power generation, water power generation, and etc.
  • the electric power supplied from the electric power company during day time (for example, 7:00 ⁇ 23:00) is mainly generated by thermal power generation and nuclear power generation
  • the electric power supplied from the electric power company during night time (for example, 23:00 ⁇ 7:00) the electrical power generated mainly by nuclear power generation.
  • An emitted amount of carbon dioxide from nuclear power generation is smaller than an emitted amount of carbon dioxide from thermal power generation.
  • the emitted amount of carbon dioxide when generating electric power which is supplied during night time (for example, 0.260 kgCO2/kWh) is smaller than an emitted amount of carbon dioxide when generating electric power which is supplied during day time (for example, 0.357 kgCO2/kWh).
  • charges for electric power during night time (for example 7:00-23:00, 8 yen/kWh) is set up to be cheaper than charges for electric power during day time (for example 23:00 ⁇ 7:00, 26 yen/kWh).
  • this hot water supply apparatus comprises a controller 70 provided in the tank unit 20 for controlling operations, a remote controller for kitchen 71, and a remote controller for bathroom 72 provided respectively in a kitchen and a bathroom so as to control and set up the operations.
  • the controller 70 comprises a microcomputer of which a memory of the microcomputer memorizes settings for operations and operation modes, and memorizes programs for calculating achievement rates of actual operations compared with an operation set up as an ideal operation, and the programs display on a display portion, which is described below, of the remote controller for the kitchen 71 and the remote controller for the bathroom 72 the calculated results. Also, the memory memorizes data relating to passed operation statuses such as data of passed periods in which the adding water and heating operations are operated and data of amount of water when the adding water and heating operations are operated. Also, the controller 70 is capable of selecting an appropriate operation mode so as to operate effectively based on, for example, an actual status of using hot water compared with a passed operation status such as temperature of hot water stored in the hot water storage tank 21.
  • the controller 70 is connected to flow sensors 73 for measuring an amount of water heated by a heat pump unit 10.
  • the sensors 73 are provided on the remote controller for kitchen 71, the remote controller for bathroom 72, and the first circulation circuit 50.
  • the remote controller for kitchen 71 and the remote controller for bathroom 72 are connected to the controller 70 by communication cables respectively, the remote controller for kitchen 71 and the remote controller for bathroom 72 respectively comprises a switch for operations relating to, for example, supplying hot water to the bathtub 61 or reheating the hot water, a switch for setting temperature which is used to set up temperature of hot water to be supplied, a priority switch for changing a priority relating to the remote controllers for kitchen and bathroom, a plurality of switches 71a and 72a such as a communication switch for having conversations between a person in the kitchen and a person in the bathroom, and a displays 71b and 72b for displaying operation status and set-up temperature, etc.
  • Displays of the displays 71b and 72b can be changed by operating the switches 71a and 72a.
  • the displays 71a, 72b display the achievement rates of actual operations compared with set-up ideal operations day by day including the day and the past six days.
  • the compressor 11, the fan 14a, and the circulation pump 51 are operated so as to conduct the heating-up operation for heating water by using night-time electric power and to conduct the adding water and heating operation for adding water and heating the added water when the amount of the remaining hot water in the hot water storage tank 21 becomes less than a predetermined amount.
  • a refrigerant discharged from the compressor 11 absorbs heat by flowing into the evaporator 14 via the expansion valve 13 after radiating heat by passing through the gas cooler 12, and is suck up by the compressor 11.
  • water in the lower part of the hot water storage tank 21 passes through the first circulation circuit 50 by the circulation pump 51, the water is heated in the gas cooler 12 by exchanging heat with the refrigerant, and is stored in the upper part of the hot water storage tank 21.
  • the operations of the compressor 11, the fan 14a, and the circulation pump 51 are stopped.
  • temperature of hot water stored in the hot water storage tank 21 is set up within 65 ⁇ 90°C, and the amount of hot water to be stored in the hot water storage tank 21 is set up within 370 liters to 320 liters. Also, as to the adding water and heating operation, temperature of hot water stored in the hot water storage tank 21 is set up to be a set-up temperature of the immediately preceded heating-up operation.
  • the controller 70 starts the heating-up operation by a time which is calculated reversely so that the heating-up operation is completed by the time when the night-time electric power supply is stopped. For example, if it takes five hours to fill water at a predetermined temperature in the hot water storage tank 21 by the heating-up operation, the heating-up operation starts on 2:00 and finishes at 7:00.
  • hot water in the upper part of the hot water storage tank 21 passes through the first hot water supply pipe 41, then, by the first mixing valve 40a, the hot water is mixed with water which passes through the second water supply pipe 32 and temperature of the mixed hot water becomes the set-up temperature set up by the remote controller for kitchen 71 or the remote controller for bathroom 72, the hot water flows through the second hot water supply pipe 42, and the hot water is supplied from the faucet A in the kitchen or in the bathroom.
  • hot water in the upper part of the hot water storage tank 21 passes through the first hot water supply pipe 41, then, by the second mixing valve 40b, the hot water is mixed with water passes through the second water supply pipe 32 and temperature of the mixed hot water becomes the set-up temperature set up by the remote controller for kitchen 71 or the remoter controller for bathroom 72, the hot water flows through the third hot water supply pipe 43 and the second circulation circuit 60, and the hot water is supplied to the bathtub 61 when the bathtub 61 is to be filled with hot water.
  • hot water in the bathtub 61 is circulated by the second circulation circuit 60, and hot water in the hot water storage tank 21 is circulated by the third circulation circuit 23.
  • hot water in the bathtub 61 is heated at the reheating heat exchanger 21 by exchanging heat with hot water in the upper part of the hot water storage tank 21 and flows back to the bathtub 61.
  • the value of the achievement rate X1 becomes 100 if the adding water and heating operation is not conducted for twenty four hours. And the more the amount of water heated by the adding water and heating operation increase, the smaller the value of the achievement rate X becomes. Also, the value of the achievement rate X1 becomes smaller if the adding water and heating operation is conducted during 7:00 ⁇ 23:00 compared with the adding water and heating operation conducted during 23:00 ⁇ 7:00 even though amount of water heated by the adding water and heating operation is the same.
  • the coefficient K becomes different between the time period 7:00 ⁇ 23:00 and the time period 23:00 ⁇ 7:00 considering that charges for electric power are different and emitting amounts of carbon dioxide when generating energy are different according to the time periods.
  • the charge for electric power is higher and the emitting amount of carbon dioxide when generating energy is larger.
  • the charge for electric power is cheaper and the emitting amount of carbon dioxide when generating energy is smaller. Therefore, if a time table for the charges for electric power and a time table for the emitting amount of carbon dioxide when generating energy are different each other, the coefficient K should be set up based on the conditions thereof respectively.
  • the achievement rates X1 which are calculated by the controller 70 are displayed on the display portions 71b and 72b as a bar graph of which a maximum value of the achievement rate X1 is 100.
  • the bar graph of the achievement rates X1 of the past seven days is displayed day by day. By this, it becomes possible to compare the achievement rates X1 of the past seven days easily.
  • the achievement rate X1 of an actual operation compared with the set-up ideal operation is calculated based on the operation information memorized in the memory, the calculated achievement rates X1 are displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • FIGS.3-7 show a second embodiment according to the present invention.
  • FIG. 3 is a schematic configuration view of the hot water supply apparatus.
  • FIG.4 is a display portion of the remote controller for kitchen and remote controller for bathroom for displaying achievement percentages.
  • FIG.5 is a display portion of the remote controller for kitchen and remote controller for bathroom for displaying achievement percentages by conducting the heating-up operation only.
  • FIG.6 is a display portion of the remote controller for kitchen and the remote controller for bathroom for displaying achievement percentages by conducting the adding water and heating operation only.
  • FIG.7 is a display portion of the remote controller for kitchen and the remote controller for bathroom for displaying sequentially the achievement percentages by conducting the heating-up operation and the adding water and heating operation respectively.
  • the compositions which are the same to the ones in the previously explained first embodiment are assigned the same symbols.
  • the controller 70 of this hot water supply apparatus is connected with a first temperature sensor 74 for detecting temperature of water before heated by the heat pump unit 10 and a second temperature sensor 75 provided on the heat pump unit 10 for detecting outside-air temperature.
  • the controller 70 memorizes data obtained, for example, by an experiment about a power consumption amount W(Wh) of the heat pump unit 10 when heating a water F(l) being at a water temperature TB(°C) and at a outside-air temperature Ta(°C) to become an objective temperature Tc(°C), and/or by a passed actual operation data. Based on the detected temperature T1 of the first temperature sensor 74 and the detected temperature T2 of the second temperature sensor 75, the power consumption amount W(Wh) for heating water to the objective temperature Tc( °C) is calculated.
  • the controller 70 calculates emitted amounts of carbon dioxide C(kg) and charges for electric power R(yen) based on the power consumption amounts W(Wh) for conducting the heating-up operation and the adding water and heating operation, and time periods in which the heating-up operation is conducted. Also, the achievement percentages X2 and X3 are calculated as the achievement rates of an actual operation compared with the most effective operation in respect of the emitting amount of carbon dioxide C(kg) and charges for electric power R(yen) respectively. Also, the controller 70 displays the achievement percentages X2 and X3 of the emitted amounts of carbon dioxide C(kg) and the charges for electric power R(yen) on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the controller 70 calculates an achievement percentage X21 of the heating-up operations as follows.
  • the controller 70 calculates a presumed power consumption amount W1(Wh) for heating water F1(liters) being at a detected temperature T1(°C) detected by the first temperature sensor 74, when the second temperature sensor 75 detects a temperature at a detected temperature T2(°C), to an objective temperature Tc1(°C), and based on the calculated power consumption amount W1(Wh), a presumed emitting amount of carbon dioxide C1(kg) (for example, 0.260 kgCO2/kWh) generated by an actual heating-up operation is calculated.
  • a presumed emitting amount of carbon dioxide C1(kg) for example, 0.260 kgCO2/kWh
  • the controller 70 calculates a presumed emitting amount of carbon dioxide Cmin(kg) generated by conducting the most effective heating-up operation (for example, water temperature is at 65°C, stored water amount is 320 liters), and a presumed emitted amount of carbon dioxide Cmax(kg) generated by conducting the least effective heating-up operation (for example, water temperature is at 90°C, stored water amount is 370 liters) based on the detected temperature T1(°C) of the first temperature sensor 74 and the detected temperature T2(°C) of the second temperature sensor 75.
  • a presumed emitting amount of carbon dioxide Cmin(kg) generated by conducting the most effective heating-up operation for example, water temperature is at 65°C, stored water amount is 320 liters
  • a presumed emitted amount of carbon dioxide Cmax(kg) generated by conducting the least effective heating-up operation for example, water temperature is at 90°C, stored water amount is 370 liters
  • the controller 70 calculates an achievement percentage X22 relating to the adding water and heating operation as follows. At each time in which the adding water and heating operation is conducted, the controller 70 calculates a presumed power consumption amount W2(Wh) for heating water F2(liters) being at a detected temperature T1(°C) detected by the first temperature sensor 74, when the second temperature sensor 75 detects a temperature T2(°C), to an objective temperature Tc1(°C), and based on the calculated power consumption amount W2(kg), a presumed emitting amount of carbon dioxide C2(kg) generated from an actual adding water and heating operation is calculated.
  • the controller 70 calculates a presumed emitting amount of carbon dioxide Cmax2(kg) generated from the least effective adding water and heating operation (for example, the adding water and heating operation during the time period of 7:00 ⁇ 23:00 with added water amount of 700 liters) based on the detected temperature T1(°C) detected by the first temperature sensor 74 and the detected temperature T2(°C) detected by the second temperature sensor 75.
  • the controller 70 calculates an achievement percentage X3 of a charge for electric power R(yen) like calculating the achievement percentage X2 of an emitted amount of carbon dioxide C(kg).
  • the controller 70 calculates the achievement percentage X31 of the heating-up operation as follows.
  • the controller 70 calculates a presumed power consumption amount W1(Wh) for heating water F1(liters) being at a detected temperature T1(°C) detected by the first temperature sensor 74, when the second temperature sensor 75 detects a temperature T2(°C), to an objective temperature Tc1(°C), and based on the calculated consumption power amount W1(Wh), a charge for electric power R1(yen) for an actual heating-up operation is calculated (for example, 8 yen/kWh).
  • the controller 70 calculates a presumed charge for electric power Rmin(yen) for the most effective heating-up operation (for example, water temperature is at 65°C with stored water amount of 320 liters) and a presumed charge for electric power Rmax1(yen) for the least effective heating-up operation (for example, water temperature is at 90°C with stored water amount of 320 liters) based on the detected temperature T1(°C) detected by the first temperature sensor 74 and the detected temperature T2(°C) detected by the second temperature sensor 75.
  • a presumed charge for electric power Rmin(yen) for the most effective heating-up operation for example, water temperature is at 65°C with stored water amount of 320 liters
  • Rmax1(yen) for the least effective heating-up operation for example, water temperature is at 90°C with stored water amount of 320 liters
  • the controller 70 calculates an achievement percentage X32 as follows. At each time in which the adding water and heating operation is conducted, the controller 70 calculates a presumed power consumption amount W2(Wh) for heating water F2(liters) being at a detected temperature T1(°C) detected by the first temperature sensor 74, when the second temperature sensor 75 detects a temperature T2(°C), to an objective temperature Tc1(°C), and based on the calculated power consumption amount W2(Wh), a presumed charge for electric power R2(yen) is calculated for an actual adding water and heating operation.
  • a presumed charge for electric power R21(yen) for conducting the adding water and heating operation during 7:00 ⁇ 23:00 (for example, 26 yen/kWh), and a presumed charge for electric power R22 for conducting the adding water and heating operation during 23:00 ⁇ 7:00 (for example, 8 yen/kWh) are calculated respectively.
  • the controller 70 calculates a presumed charge for electric power Rmax2(yen) for the least effective adding water and heating operation (for example, the adding water and heating operation during the time period of 7:00 ⁇ 23:00 with added water amount of 700 liters) based on the detected temperature T1(°C) detected by the first temperature sensor 74 and the detected temperature T2(°C) detected by the second temperature sensor 75.
  • the calculated achievement rates X2 and X3 are displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72 with bar graphs of which maximum percentages of the achievement percentages X2 and X3 are 100%.
  • the achievement rates X2 and X3 of the past seven days are shown by the bar graphs day by day. By this, it becomes possible to compare the achievement percentages X2 and X3 of the past seven days easily.
  • the achievement percentages X21 and X31 for conducting the heating-up operation and the achievement percentages X22 and X32 for conducting the adding water and heating operation can be displayed on the display portions 71b and 72b respectively as shown in FIGS. 5 and 6 , or the achievement percentages of X21 and X31 for conducting the heating-up operation and the achievement percentages X22 and X32 for adding water and heating operation can be displayed on the display portions 71b and 72b side by side0 as shown in FIG.7 .
  • either the achievement percentage X2 of the emitted amount of carbon dioxide C(kg) or the achievement percentage X3 of the electric charge R(yen) is displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and remote controller for bathroom 72, and the other one of the X2 or X3 can be displayed by operating the switches 71a and 72a.
  • the controller 70 displays on the display portions 71b and 72b an indication showing an operation mode which is to lower a temperature of water stored in the hot water storage tanks 21 when conducting the heating-up operation, or changes operation modes automatically.
  • the controller 70 calculates the achievement percentages X2 and X3 of the case in which the operation mode is changed to the one which is with higher temperature of water stored in the hot water storage tank 21 in the heating-up operation, and if the controller judges that it is possible to reduce energy in total, the controller displays an indication showing a suggestion of changing operation modes on the display portions 71b and 72b, or changes operation modes automatically.
  • the result of the achievement percentage X2 and the achievement percentage X3 are different from each other, it becomes possible to select which one of achievement percentage X2 or the achievement percentage X3 to be a criterion for the suggestion of changing operation modes or for changing operation modes automatically by operating switches 71a and 72a.
  • the achievement percentage X2 of the actual operation compared with a set-up ideal operation based on the stored operation data is calculated, and the calculated achievement percentage X2 is displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the achievement percentage X2 of the emitted amount of carbon dioxide generated from the actual operation compared with a presumed emitting amount of carbon dioxide which is supposed to be emitted from the set-up ideal operation is calculated, the calculated achievement percentage X2 is displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the achievement percentage X3 of the charge for electric power for the actual operation compared with a presumed charge for electric power which is supposed to be charged for the set-up ideal operation is calculated, the calculated achievement percentage X3 is displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the achievement percentage X2 of the emitted amount of carbon dioxide and the achievement percentage X3 of the charge for electric power can be switched and displayed alternatively on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • users can select which one of the achievement percentage X2 of the emitted amount of carbon dioxide or the achievement percentage X3 of the charge for electric power to be displayed according to their needs. Therefore, it becomes further effectively possible to improve consciousness of users for energy saving.
  • the achievement percentages X2 and X3 of the past seven days can be displayed day by day on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the achievement percentages X2 and X3 of the past seven days can be displayed day by day on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72.
  • the best operation mode can be selected and displayed on the display portions 71b and 72b of the remote controller for kitchen 71 and the remote controller for bathroom 72, and operation modes can be changed automatically. By this, it becomes possible to operate by the best operation mode. Therefore, it becomes capable of practicing further energy saving.

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Claims (2)

  1. Dispositif d'alimentation en eau chaude qui comprend :
    une mémoire (70) destinée à mémoriser des informations relatives à une opération antérieure ;
    une section de calcul (70) destinée à calculer un taux de réalisation réel (X1, X2, X3) d'une opération réelle comparée avec une opération de paramétrage sur la base des informations mémorisées dans la mémoire ;
    une section d'affichage (71b, 72b) destinée à afficher un résultat calculé par la section de calcul (70), et
    un modificateur d'affichage (71a, 72a), dans lequel
    la section de calcul (70) calcule le taux de réalisation (X2) d'une quantité de dioxyde de carbone émise lors de l'opération réelle, comparée avec une quantité de dioxyde de carbone supposée être émise lors de l'opération de paramétrage, et la section de calcul (70) calcule le taux de réalisation (X3) d'une charge d'énergie consommée lors de l'opération réelle, comparé avec une charge d'énergie supposée être consommée lors de l'opération de paramétrage ;
    une pluralité de modes de fonctionnement, dont une quantité définie d'eau à chauffer et une température définie de l'eau chauffée, sont différents les uns des autres ;
    caractérisé en ce que
    le modificateur d'affichage (71a, 72a) est prévu afin d'afficher de manière interchangeable, sur la section d'affichage (71 b, 72b), soit le taux de réalisation (X2) de la quantité de dioxyde de carbone émise, soit le taux de réalisation (X3) de la charge d'énergie consommée ;
    et en ce que
    un dispositif de commande (70) est prévu afin de sélectionner un mode de fonctionnement de façon à réaliser d'autres économies d'énergie sur la base du taux de réalisation antérieur (X1, X2, X3).
  2. Dispositif d'alimentation en eau chaude selon la revendication 1, caractérisé en ce que
    la section d'affichage (71 b, 72b) affiche une série de taux de réalisation (X1, X2, X3) d'une période antérieure prédéterminée.
EP08849821A 2007-11-16 2008-10-22 Dispositif d'alimentation en eau chaude Not-in-force EP2228610B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007297901A JP2009121781A (ja) 2007-11-16 2007-11-16 給湯装置
PCT/JP2008/069129 WO2009063727A1 (fr) 2007-11-16 2008-10-22 Dispositif d'alimentation en eau chaude

Publications (3)

Publication Number Publication Date
EP2228610A1 EP2228610A1 (fr) 2010-09-15
EP2228610A4 EP2228610A4 (fr) 2011-03-02
EP2228610B1 true EP2228610B1 (fr) 2012-05-02

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EP08849821A Not-in-force EP2228610B1 (fr) 2007-11-16 2008-10-22 Dispositif d'alimentation en eau chaude

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EP (1) EP2228610B1 (fr)
JP (1) JP2009121781A (fr)
AT (1) ATE556277T1 (fr)
AU (1) AU2008322043B2 (fr)
WO (1) WO2009063727A1 (fr)

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JP2011145008A (ja) * 2010-01-14 2011-07-28 Mitsubishi Electric Corp 空調用リモートコントローラ
JP5446906B2 (ja) * 2010-01-18 2014-03-19 三菱電機株式会社 空気調和機
JP2012007834A (ja) * 2010-06-25 2012-01-12 Aisin Seiki Co Ltd 空気調和機群制御装置
CN106907755A (zh) * 2017-05-05 2017-06-30 天津商业大学 一种匹配低温井式核供热堆的供暖一次网和二次网系统
CN106949524A (zh) * 2017-05-05 2017-07-14 天津商业大学 一种匹配低温井式核供热堆的供暖一次网系统

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ATE148556T1 (de) * 1994-06-10 1997-02-15 Landis & Gyr Tech Innovat Wärmezähler
JP2000274809A (ja) 1999-03-18 2000-10-06 Toto Ltd 給湯機
JP2003250224A (ja) * 2001-12-19 2003-09-05 Sekisui Chem Co Ltd コジェネレーションシステム
JP4504635B2 (ja) * 2003-06-18 2010-07-14 積水化学工業株式会社 コジェネレーションシステム
JP4295655B2 (ja) * 2004-03-31 2009-07-15 株式会社ガスター 複合給湯熱源システム
JP2005332103A (ja) * 2004-05-19 2005-12-02 Tokyu Construction Co Ltd 二酸化炭素削減目標値表示システム
JP2006013780A (ja) * 2004-06-24 2006-01-12 Noritz Corp 情報端末
JP4484632B2 (ja) * 2004-08-30 2010-06-16 株式会社ノーリツ 熱源制御装置
DE102004054118B4 (de) * 2004-11-08 2009-01-29 Hydrometer Gmbh Verfahren zum Betrieb eines Wärmezählers
JP2006349483A (ja) * 2005-06-15 2006-12-28 Cosmo Life Kk 使用電力監視システム

Also Published As

Publication number Publication date
EP2228610A1 (fr) 2010-09-15
ATE556277T1 (de) 2012-05-15
AU2008322043A1 (en) 2009-05-22
EP2228610A4 (fr) 2011-03-02
AU2008322043B2 (en) 2011-10-13
JP2009121781A (ja) 2009-06-04
WO2009063727A1 (fr) 2009-05-22

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