WO2007068031A1 - Chauffe-eau a circulation - Google Patents

Chauffe-eau a circulation Download PDF

Info

Publication number
WO2007068031A1
WO2007068031A1 PCT/AU2006/001801 AU2006001801W WO2007068031A1 WO 2007068031 A1 WO2007068031 A1 WO 2007068031A1 AU 2006001801 W AU2006001801 W AU 2006001801W WO 2007068031 A1 WO2007068031 A1 WO 2007068031A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
temperature
pump
tank
heating system
Prior art date
Application number
PCT/AU2006/001801
Other languages
English (en)
Inventor
Brendan Bourke
Sean Box
George Echtner
Original Assignee
Rheem Australia Pty Limited
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
Priority claimed from AU2005907063A external-priority patent/AU2005907063A0/en
Application filed by Rheem Australia Pty Limited filed Critical Rheem Australia Pty Limited
Priority to AU2006324367A priority Critical patent/AU2006324367B2/en
Publication of WO2007068031A1 publication Critical patent/WO2007068031A1/fr

Links

Classifications

    • 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • 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
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
    • 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
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—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
    • 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
    • F24D2200/08—Electric heater
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/14—Solar energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention provides a system and method for operating a water heating system which uses a circulating pump to draw water from one level within the tank and returns it to a second level within the tank.
  • the operation of the pump is controlled by a controller which is responsive to one or more temperature sensors.
  • the controller can be programmed to perform one or more different types of heating cycle.
  • the use of an array of temperature sensors which sense the temperature of the water at different levels within the tank enable the system to be used to heat a predetermined volume of water to within a predetermined temperature range.
  • the controller may be programmed to periodically perform a pasteurization cycle where water in the tank is maintained at or above a pasteurization temperature for a predetermined time period.
  • the controller can be responsive to one or jnore temperature sensors.
  • the controller can be responsive to one of the sensors of the array to determine the temperature at a specified depth in the tank, and then the controller can use a heat source temperature sensor to determine the period and/or flow rate operating conditions of the water pump.
  • a water heating system including: a water storage tank, a heat source, a water pump, one or more temperature sensors, and a controller responsive to at least one temperature sensor to control the operation of the pump.
  • the temperature sensor can include an array of one or more temperature sensors located to sense the temperature of the water at one or more corresponding depths within the tank.
  • the temperature sensor can include a heat source temperature sensor adapted to measure the temperature of the heated water leaving the heat source.
  • the controller can control the flow rate of the pump.
  • a diffuser can be included at the hot water inlet to the tank to provide a diffused flow into the tank.
  • the system can be adapted to heat a chosen volume of water within the tank, by the provision of a plurality of temperature sensors at selected heights to measure the temperature of the water at corresponding heights within the tank.
  • a water heater system including: a water storage tank; a heat source including a water path; a pump adapted to circulate water from the tank through the water path of the heat exchanger; a first temperature sensor adapted to measure the temperature of the water exiting from the heat exchanger; a controller controlling the rate of circulation through the water path in response to the temperature sensor.
  • the heat source can include a solar collector.
  • the pump can have a controllable flow rate.
  • the sensors can include a strip array of temperature sensors.
  • a further temperature sensor can be provided to measure the temperature of the water entering the heat source.
  • the system can include a heat transfer fluid by-pass path.
  • the heating element can be an electric element within the tank.
  • Figure 3 shows a water heating system according to a third embodiment of the invention.
  • the heat exchanger is a brazed plate heat exchanger having a cool water inlet header 438 and a warm water outlet header 436.
  • a temperature sensor 428 measures the temperature of the water exiting the BPHE.
  • the controller checks whether or not the heated water temperature is above an upper threshold value. If the temperature exceeds the upper threshold value, the controller energizes the water pump at step 612 so that the water in the tank is circulated.
  • step 610 in the case where the water is not above the upper set point while the heating element is energized, the controller goes to step 614 and checks whether the water is above a lower set point. If the water temperature is not above the lower set point, the controller de-energizes the pump at step 616 so that the water above the heating element will heat more quickly.

Landscapes

  • 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)

Abstract

La présente invention concerne un système (100) de chauffe-eau comprenant : un réservoir (102) de stockage d'eau ; une source (114) de chaleur comprenant un conduit d'eau ; une pompe (110) adaptée pour faire circuler de l'eau provenant du réservoir à travers le conduit d'eau de l'échangeur thermique ; un premier capteur (108) de température adapté pour mesurer la température de l'eau sortant de l'échangeur thermique ; une unité de commande (116) capable de réagir au moins au premier capteur (108) de température pour commander le fonctionnement de la pompe (110). L'invention concerne également un procédé de chauffage de l'eau dans un système de chauffe-eau.
PCT/AU2006/001801 2005-12-15 2006-11-29 Chauffe-eau a circulation WO2007068031A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2006324367A AU2006324367B2 (en) 2005-12-15 2006-11-29 A circulating water heater

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2005907063A AU2005907063A0 (en) 2005-12-15 A circulating water heater
AU2005907063 2005-12-15

Publications (1)

Publication Number Publication Date
WO2007068031A1 true WO2007068031A1 (fr) 2007-06-21

Family

ID=38162461

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2006/001801 WO2007068031A1 (fr) 2005-12-15 2006-11-29 Chauffe-eau a circulation

Country Status (1)

Country Link
WO (1) WO2007068031A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261574A1 (fr) * 2008-02-29 2010-12-15 Hitachi Appliances, Inc. Appareil à eau chaude de pompe à chaleur
AU2012261603B2 (en) * 2011-12-21 2014-02-27 Rheem Australia Pty Limited A Hot Water System Scavenging Method and Arrangement
GB2623198A (en) * 2023-10-11 2024-04-10 Wrightsolar Ltd Device for a hot water cylinder

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617111A1 (de) * 1995-04-26 1996-10-31 Vaillant Joh Gmbh & Co Wasserheizanlage
DE19648652A1 (de) * 1995-11-24 1997-05-28 Vaillant Joh Gmbh & Co Wasserheizeinrichtung mit einem Schichtenspeicher
EP1069379A2 (fr) * 1999-07-15 2001-01-17 ERI Energie-Ressourcen Institut Forschungs- und Entwicklungs-GmbH Installation pour capter de l' énergie calorifique, en particulier de l'énergie solaire, et procédé de commande pour cette installation
DE10303830A1 (de) * 2003-01-30 2004-08-12 Böhringer, Volker Zirkulationspumpenregelung ohne mechanischen Strömungsschalter
US20050155364A1 (en) * 2004-01-20 2005-07-21 Julio Concha Energy-efficient heat pump water heater
WO2006096075A1 (fr) * 2005-03-10 2006-09-14 Hot Water Innovations Investments Limited Contrôleur électronique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617111A1 (de) * 1995-04-26 1996-10-31 Vaillant Joh Gmbh & Co Wasserheizanlage
DE19648652A1 (de) * 1995-11-24 1997-05-28 Vaillant Joh Gmbh & Co Wasserheizeinrichtung mit einem Schichtenspeicher
EP1069379A2 (fr) * 1999-07-15 2001-01-17 ERI Energie-Ressourcen Institut Forschungs- und Entwicklungs-GmbH Installation pour capter de l' énergie calorifique, en particulier de l'énergie solaire, et procédé de commande pour cette installation
DE10303830A1 (de) * 2003-01-30 2004-08-12 Böhringer, Volker Zirkulationspumpenregelung ohne mechanischen Strömungsschalter
US20050155364A1 (en) * 2004-01-20 2005-07-21 Julio Concha Energy-efficient heat pump water heater
WO2006096075A1 (fr) * 2005-03-10 2006-09-14 Hot Water Innovations Investments Limited Contrôleur électronique

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2261574A1 (fr) * 2008-02-29 2010-12-15 Hitachi Appliances, Inc. Appareil à eau chaude de pompe à chaleur
EP2261574A4 (fr) * 2008-02-29 2012-08-29 Hitachi Appliances Inc Appareil à eau chaude de pompe à chaleur
AU2012261603B2 (en) * 2011-12-21 2014-02-27 Rheem Australia Pty Limited A Hot Water System Scavenging Method and Arrangement
AU2012261603B9 (en) * 2011-12-21 2014-03-20 Rheem Australia Pty Limited A Hot Water System Scavenging Method and Arrangement
GB2623198A (en) * 2023-10-11 2024-04-10 Wrightsolar Ltd Device for a hot water cylinder

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