EP2009360A2 - Appareil d'alimentation en eau chaude de type pompe à chaleur - Google Patents

Appareil d'alimentation en eau chaude de type pompe à chaleur Download PDF

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Publication number
EP2009360A2
EP2009360A2 EP08158705A EP08158705A EP2009360A2 EP 2009360 A2 EP2009360 A2 EP 2009360A2 EP 08158705 A EP08158705 A EP 08158705A EP 08158705 A EP08158705 A EP 08158705A EP 2009360 A2 EP2009360 A2 EP 2009360A2
Authority
EP
European Patent Office
Prior art keywords
hot water
temperature
condition
heat pump
storage tank
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.)
Withdrawn
Application number
EP08158705A
Other languages
German (de)
English (en)
Other versions
EP2009360A3 (fr
Inventor
Satoshi Ida
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanden Corp filed Critical Sanden Corp
Publication of EP2009360A2 publication Critical patent/EP2009360A2/fr
Publication of EP2009360A3 publication Critical patent/EP2009360A3/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to, for example, an heat pump type hot water supply apparatus which heats hot water in a hot water storage tank to a set-up temperature by a heat pump.
  • a generally known electrical hot water device comprises a remote control having a supply start switch for supplying a predetermined amount of hot water in a bath tab.
  • a supply start switch for supplying a predetermined amount of hot water in a bath tab.
  • a heat pump type hot water supply apparatus heats hot water stored in a hot water storage tank to a temperature set up beforehand, and said heating is performed during midnight when the cost of electric is cheap.
  • the heat pump type hot water supply apparatus uses low cost energy.
  • the temperature is too high, when large amount of hot water in the tank remains, energy is not used efficiently.
  • the temperature is too low, when hot water in the tank runs short, it become necessary to heat hot water in the tank again using high cost energy at the time other than midnight. In this case, low cost energy is not used efficiently.
  • An object of the present invention is to provide a heat pump type hot water supply apparatus capable of using low cost energy efficiently.
  • a heat pump type hot water supply apparatus is provided with a hot water storage tank capable of supplying stored hot water to outside of the tank, a heat pump unit for heating hot water in the hot water storage tank according to a set-up condition set up beforehand, a calculation means for newly calculating a set-up condition so that an energy of hot water in the hot water storage tank becomes equal to a unit period consumption energy calculated based on an energy of hot water supplied to outside of the tank for a past predetermined term, an output means for outputting said newly calculated set-up condition based on a difference between the newly calculated set-up condition and said set-up condition which is set up beforehand.
  • this heat pump type hot water supply apparatus newly calculates the set-up condition so that the energy of hot water in the hot water storage tank becomes equal to the unit period consumption energy calculated based on the energy of hot water supplied to outside of the tank for a past predetermined term. Also, this heat pump type hot water supply apparatus outputs the newly calculated set-up condition based on the difference between the newly calculated set-up condition and the set-up condition which is set up beforehand. By this, for example, new set up condition is calculated so that the newly calculated energy becomes equal to one day consumption energy calculated based on hot water supplied to outside of the tank for one month. Also, when a difference between newly calculated condition and the condition set up beforehand is not within -5°C to 0°C , newly calculated condition is outputted.
  • the set-up condition which enable that supplying whole hot water in the hot water storage tank in one day, is informed to users.
  • FIGS. 1 to 4 show an embodiment of the present invention.
  • FIG. 1 is a schematic configuration view of a heat pump type hot water supply apparatus
  • FIG. 2 is a block diagram showing a control system configuration for the heat pump type hot water supply apparatus shown in FIG. 1
  • FIG. 3 is a front view of a remote control shown in FIG. 2
  • FIG. 4 is a flowchart showing an operation for outputting a calculated temperature.
  • This heat pump type hot water supply apparatus includes a heat pump unit 10 and a hot water storage unit 20. Also, this heat pump type hot water supply apparatus has a refrigerant circuit 17 formed by connecting a compressor 12, a water heat exchanger 13, a pressure reducing valve 14, and a heat exchanger 15 via a refrigerant pipe 11, and the refrigerant circuit 17 is filled with a refrigerant such as CO 2 .
  • the compressor 12 having a motor (not shown) as a power source is configured as publicly known so that the number of revolutions thereof is controlled variably.
  • the compressor 12 pressurizes the refrigerant to circulate the refrigerant in the refrigerant circuit 17.
  • the water heat exchanger 13 conducts heat-exchange between the high temperature and pressure refrigerant that is discharged from the compressor 12 and flows in the refrigerant pipe 11 with the hot water flowing in a circulation pipe 21, described later.
  • the water heat exchanger 13 functions as a condenser, so that the hot water flowing in the later-described circulation pipe 21 is heated.
  • the pressure reducing valve 14 is a commonly known motor-operated valve, and depressurizes the refrigerant from which heat is absorbed by the water heat exchanger 13 to change the refrigerant into a low-temperature and pressure one.
  • the heat exchanger 15 conducts heat-exchange between the refrigerant flowing in from the pressure reducing valve 14 and the outside air introduced by a fan 16.
  • the heat-exchanged refrigerant is sent to the compressor 12 via the refrigerant pipe 11.
  • the heat exchanger 15 functions as an evaporator, so that the refrigerant is heated.
  • the hot water storage unit 20 has a circulation circuit 24 formed by connecting a hot water storage tank 22, a circulating pump 23, and the above-described water heat exchanger 13 via the circulation pipe 21. Also, the hot water storage unit 20 includes a water supply pipe 25, a hot water supply pipe 26, a flowmeter 27, a thermometer 28, and temperature sensors 29.
  • a circulation inlet 22a and a hot water outlet 22b are provided, and in the lower part of the hot water storage tank 22, a circulation outlet 22c and a water inlet 22d are provided.
  • the hot water storage tank 22 is supplied with ordinary-temperature water as necessary from an outside water source (not shown) via the water supply pipe 25 and the water inlet 22d.
  • the circulating pump 23 pressurizes the hot water flowing out of the circulation outlet 22c to circulate the hot water in the circulation circuit 24 and allow it to flow into the hot water storage tank 22 through the circulation inlet 22a.
  • the hot water flowing out of the lower part of the hot water storage tank 22 is heated by the water heat exchanger 13 of the heat pump unit 10, and the hot water having a set-up temperature, described later, is stored in the hot water storage tank 22.
  • the hot water having the set-up temperature stored in the hot water storage tank 22 is supplied upon request to the outside via the hot water outlet 22b and the hot water supply pipe 26.
  • the flowmeter 27 and the thermometer 28 provided in the hot water supply pipe 26 detect the flow rate and temperature of the hot water flowing out of the hot water outlet 22b, respectively.
  • the temperature sensors 29 are installed at equal intervals in the up and down direction in the hot water storage tank 22 to detect the temperatures of hot water in the hot water storage tank 22 at the installation positions thereof.
  • the temperature sensors 29 can detect the amount of hot water having a predetermined temperature and the amount of hot water having the ordinary temperature in the hot water storage tank 22.
  • a control section 30 and a remote control 40 each are formed by a publicly known computer, and this computer has memory such as a CPU, RAM, and ROM. Also, the control section 30 and the remote control 40 exchange control signals and data between the two. In this embodiment, the control section 30 and the remote control 40 each are formed by a computer. However, the present invention is not limited to this configuration. The control section 30 and the remote control 40 can be formed by one computer.
  • the control section 30 heats the water in the hot water storage tank 22 to a set-up temperature 31a, described later, that is set up beforehand.
  • the control section 30 is connected with the flowmeter 27, the thermometer 28, the temperature sensors 29, a storage device 31, the compressor 12, the pressure reducing valve 14, the fan 16, and the circulating pump 23. Also, the control section 30 outputs a control signal based on the data inputted from the flowmeter 27, the thermometer 28, and the temperature sensors 29, the later-described set-up temperature 31a stored in the storage device 31, and the program stored in the memory of the control section 30 itself. Also, the control section 30 drives the compressor 12, the pressure reducing valve 14, the fan 16, and the circulating pump 23.
  • the storage device 31 is formed by a publicly known mass storage device for storing files, programs, and the like required by the control section 30. As necessary, the control section 30 stores data in the storage device 31, and reads the data stored in the storage device 31.
  • the remote control 40 is operated when a user sets up various conditions of the heat pump type hot water supply apparatus.
  • the remote control 40 is connected with an output button 41 for outputting a calculated temperature, selection buttons 42 and 43, a decision button 44, a cancel button 45, a display 46, and a speaker 47.
  • the output button 41, the selection buttons 42 and 43, the decision button 44, and the cancel button 45 are provided in the central lower part thereof, the display 46 is provided in the central upper part thereof, and the speaker 47 is provided on the right-hand side.
  • the user operates the selection buttons 42 and 43, the decision button 44, and the cancel button 45 based on the information outputted by the display 46 and the speaker 47, by which a set-up condition, for example, the set-up temperature of hot water in the hot water storage tank 22, which is heated by the heat pump unit 10, can be set up.
  • the remote control 40 sends the set-up temperature data to the control section 30, and the control section 30 stores the sent set-up temperature data in the storage device 31 as the set-up temperature 31a.
  • the set-up temperature is set up as a set-up condition.
  • the present invention is not limited to this configuration.
  • the amount of hot water heated by the heat pump unit 10 or the time for heating can also be set up, or a plurality of set-up conditions can also be set up.
  • the control section 30 reads the set-up temperature 31a stored in the storage device 31, and also starts the compressor 12, the pressure reducing valve 14, the fan 16, and the circulating pump 23, by which the heating of hot water in the hot water storage tank 22 is started.
  • the predetermined time is midnight time when the cost of electric energy is cheap.
  • the control section 30 stops the compressor 12, the pressure reducing valve 14, the fan 16, and the circulating pump 23, by which the heating of hot water in the hot water storage tank 22 is finished.
  • the hot water in the hot water storage tank 22 is heated to the set-up temperature 31a by the heat pump unit 10.
  • the control section 30 calculates the energy, for example, the calorie of hot water supplied to the outside based on the flow rate data of the flowmeter 27, the temperature data of the thermometer 28, and the time of clock function of the control section 30 itself.
  • a calorie history 31b stored in the storage device 31 the calorie of hot water supplied per one day is stored for the past one week.
  • the control section 30 reads the calorie history 31b from the storage device 31. Also, the control section 30 stores the calculated calorie in the calorie history 31b in the storage device 31 based on the date of calendar function of the control section 30 itself.
  • the remote control 40 When the user presses the output button 41 provided on the surface panel 40a of the remote control 40, the remote control 40 sends a control signal to the control section 30, and the control section 30 starts output processing of calculated temperature to output the calculated temperature. Since the calculated temperature is outputted by the user's pressing operation of the output button 41 provided on the surface panel 40a of the remote control 40 as described above, the user can optionally output the calculated set-up condition.
  • control section 30 reads the calorie history 31b from the storage device 31, and determines the consumed calorie per one day based on the calorie history 31b (Step S11) .
  • the mean value of the calorie of hot water supplied per one day is calculated based on the calorie history 31b, and this mean value is made a consumed calorie per one day.
  • the present invention is not limited to the case in which the consumed calorie per one day is calculated based on the calorie history 31b.
  • the control section 30 can determine the consumed calorie per one day based on, for example, the outside air temperature data of an outside air thermometer (not shown) and the season data having the transition of air temperature, which is received from an external network (not shown), in addition to the calorie history 31b.
  • the control section 30 calculates a set-up temperature (hereinafter referred to as a calculated temperature) based on the capacity of the hot water storage tank 22, which is stored in the memory of the control section 30 itself, so that the calorie of hot water in the hot water storage tank 22 is equal to the consumed calorie per one day, which has been calculated in Step S11 (Step S12).
  • a calculated temperature a set-up temperature based on the capacity of the hot water storage tank 22, which is stored in the memory of the control section 30 itself.
  • the predetermined range is, for example, a temperature range of -5°C to 0°C.
  • the control section 30 sends a control signal and data to the remote control 40, and the remote control 40 outputs a massage saying that the present set-up temperature is proper by using an image and a sound using the display 46 and the speaker 47 (Step S14). Thereafter, the control section 30 finishes the output processing of calculated temperature.
  • the control section 30 sends a control signal and calculated temperature data to the remote control 40, and the remote control 40 outputs the calculated temperature by using an image and a sound using the display 46 and the speaker 47 (Step S15).
  • the calculated temperature is outputted by using both of an image and a sound.
  • the calculated temperature can also be outputted by using either one of an image and a sound.
  • the remote control 40 outputs a message for asking whether or not the calculated temperature is set up as a new set-up temperature by using an image and a sound using the display 46 and the speaker 47 (Step S16).
  • Step S17 when the user operates the selection buttons 42 and 43, the decision button 44, and the cancel button 45, the remote control 40 judges whether or not the user sets up the calculated temperature as a new set-up temperature.
  • the remote control 40 sends a control signal to the control section 30, and the control section 30 sets up a new set-up temperature 31a in the storage device 31 (Step S18). Since the calculated temperature is set up as the new set-up temperature 31a by the user's operation of the selection buttons 42 and 43, the decision button 44, and the cancel button 45 as described above, the user can optionally set up a calculated set-up condition as a new set-up temperature.
  • control section 30 does nothing and finishes the output processing of calculated temperature.
  • the set-up temperature is used as a set-up condition, and the calculated temperature corresponding to the consumed calorie per one day is calculated, so that the calculated temperature can be set up as the new set-up temperature 31a.
  • the heating efficiency of the heat pump unit 10 goes down.
  • the set-up amount of hot water and the set-up time are used as set-up conditions, and the hot water in the hot water storage tank 22 is heated a plurality of times per one day, by which the restriction of capacity of the hot water storage tank 22 can also be avoided.
  • the amount of hot water in the hot water storage tank 22 and the time for heating are calculated.
  • the calculated temperature corresponding to the consumed calorie per one day which is calculated based on the calorie of hot water supplied from the hot water storage tank 22 to the outside for the past one week, is calculated. Also, in the case in which the difference between the calculated temperature and the present set-up temperature 31a is not within the range of -5°C to 0°C, the calculated temperature is outputted.
  • the user is informed of the set-up temperature such that the whole of hot water in the hot water storage tank 22 is supplied in one day. Therefore, the user pays attention to whether or not the user sets up the calculated set-up condition as a new set-up condition. Also, the hot water in the hot water storage tank 22 is heated during midnight when the cost of electric energy is cheap based on the calculated set-up condition, so that a low-price energy is used efficiently.
  • the calculated temperature is outputted.
  • the user can optionally output the calculated set-up condition.
  • the calculated temperature is set up as the new set-up temperature 31a. Since the user can optionally set up the calculated set-up condition as the new set-up condition, the user can set up a proper set-up temperature easily, so that the user can use low-price energy more easily.
  • the calculated temperature is outputted by at least one of an image and a sound, the user can recognize the calculated set-up condition easily, so that the user's attention can be excited easily.

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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)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP08158705A 2007-06-25 2008-06-20 Appareil d'alimentation en eau chaude de type pompe à chaleur Withdrawn EP2009360A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007166034A JP2009002622A (ja) 2007-06-25 2007-06-25 ヒートポンプ式給湯装置

Publications (2)

Publication Number Publication Date
EP2009360A2 true EP2009360A2 (fr) 2008-12-31
EP2009360A3 EP2009360A3 (fr) 2010-08-04

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ID=39926605

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EP08158705A Withdrawn EP2009360A3 (fr) 2007-06-25 2008-06-20 Appareil d'alimentation en eau chaude de type pompe à chaleur

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EP (1) EP2009360A3 (fr)
JP (1) JP2009002622A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2395297A1 (fr) * 2010-06-10 2011-12-14 Atlantic Industrie Procédé et dispositif de détermination d'une capacité d'eau mitigée
FR3018902A1 (fr) * 2014-03-19 2015-09-25 Electricite De France Installation de production d'eau chaude sanitaire et procede de pilotage de cette installation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465588A (en) * 1994-06-01 1995-11-14 Hydro Delta Corporation Multi-function self-contained heat pump system with microprocessor control
EP1162419A1 (fr) * 2000-06-05 2001-12-12 Denso Corporation Système de fourniture d'eau chaude utilisant un cycle de pompe à chaleur
US20050022542A1 (en) * 2003-07-30 2005-02-03 Hisayoshi Sakakibara Heat pump hot water supply system of hot water storage type
DE102005003455A1 (de) * 2004-01-27 2005-10-20 Denso Corp Speicherwasserheizer
US20060190141A1 (en) * 2001-11-15 2006-08-24 Patterson Wade C System and method for controlling temperature of a liquid residing within a tank

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001311557A (ja) * 2000-04-28 2001-11-09 Toto Ltd 電気温水器
JP3807930B2 (ja) * 2000-12-01 2006-08-09 株式会社デンソー 給湯装置
JP2003090620A (ja) * 2001-09-20 2003-03-28 Matsushita Electric Ind Co Ltd 貯湯式温水器
JP3977202B2 (ja) * 2002-08-27 2007-09-19 株式会社コロナ 貯湯式給湯装置
JP4119309B2 (ja) * 2003-06-03 2008-07-16 株式会社コロナ 貯湯式給湯装置の残湯量表示装置
JP2005030661A (ja) * 2003-07-11 2005-02-03 Corona Corp 貯湯式給湯装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465588A (en) * 1994-06-01 1995-11-14 Hydro Delta Corporation Multi-function self-contained heat pump system with microprocessor control
EP1162419A1 (fr) * 2000-06-05 2001-12-12 Denso Corporation Système de fourniture d'eau chaude utilisant un cycle de pompe à chaleur
US20060190141A1 (en) * 2001-11-15 2006-08-24 Patterson Wade C System and method for controlling temperature of a liquid residing within a tank
US20050022542A1 (en) * 2003-07-30 2005-02-03 Hisayoshi Sakakibara Heat pump hot water supply system of hot water storage type
DE102005003455A1 (de) * 2004-01-27 2005-10-20 Denso Corp Speicherwasserheizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2395297A1 (fr) * 2010-06-10 2011-12-14 Atlantic Industrie Procédé et dispositif de détermination d'une capacité d'eau mitigée
FR2961295A1 (fr) * 2010-06-10 2011-12-16 Atlantic Industrie Sas Procede et dispositif de determination d'une capacite d'eau mitigee
FR3018902A1 (fr) * 2014-03-19 2015-09-25 Electricite De France Installation de production d'eau chaude sanitaire et procede de pilotage de cette installation

Also Published As

Publication number Publication date
EP2009360A3 (fr) 2010-08-04
JP2009002622A (ja) 2009-01-08

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