WO2020079458A1 - Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude - Google Patents

Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude Download PDF

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Publication number
WO2020079458A1
WO2020079458A1 PCT/GR2018/000049 GR2018000049W WO2020079458A1 WO 2020079458 A1 WO2020079458 A1 WO 2020079458A1 GR 2018000049 W GR2018000049 W GR 2018000049W WO 2020079458 A1 WO2020079458 A1 WO 2020079458A1
Authority
WO
WIPO (PCT)
Prior art keywords
hot water
boiler
boilers
water
valve
Prior art date
Application number
PCT/GR2018/000049
Other languages
English (en)
Inventor
Christos NIKOLAIDIS
Original Assignee
Nikolaidis Christos
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 Nikolaidis Christos filed Critical Nikolaidis Christos
Priority to PCT/GR2018/000049 priority Critical patent/WO2020079458A1/fr
Publication of WO2020079458A1 publication Critical patent/WO2020079458A1/fr

Links

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
    • F24D15/00—Other domestic- or space-heating systems
    • F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. 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
    • 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
    • F24D2200/14—Solar energy
    • 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
    • F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0082—Multiple tanks arrangements, e.g. adjacent tanks, tank in tank
    • 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

Definitions

  • the present invention relates to the efficient management and distribution of solar hot water through a single device containing all the necessary elements of the system.
  • the device is suitable for indoor or outdoor installation. Thus, there is no need of a conventional indoor boiler room, freeing space in the building. In addition, this makes the device’s maintenance process more flexible and efficient as there is plenty of space which allows freedom of movements.
  • All devices’ components are installed in a centrally positioned sturdy column on wheels, which can move like a drawer all gear outside the casing of the device, resulting in easy maintenance even in cases of considerably tight installation areas.
  • start-up, LAN & Ethernet connectivity, trouble detection, monitoring and system upgrade are instant via the use of multiple sensors integrated in the device and the use of a web application for its control.
  • the device thanks to its multi modular single exit cascade tank technology drastically increases the ramp up of the water temperature, resulting in quicker on-demand hot water for consumption.
  • less hot water consumed as higher temperature hot water must be inevitably mixed with tap water.
  • less output of installed back-up traditional energy gear is needed, as levelized water temperature ramp-up diminishes the use of any other such sources.
  • the device exploits the thermal energy that is produced by any kind of solar panels (ST) or hybrid panels (PVT) and appropriately distributes it via a boiler array in an efficient manner.
  • ST solar panels
  • PVT hybrid panels
  • the system controller collects and processes the temperature values of all boilers as well as the temperature in the solar panels side.
  • a thermal conductive liquid circulates from solar or hybrid panels and is appropriately distributed between the boilers through a heat exchanger integrated in each of them, so that all boilers have a constant desired temperature of water during the operation of the system. This self-adjustment of the water interchange between tanks, results in the highest possible system efficiency and the possibility of retaining a single-size device.
  • the controller decides which boiler will cover the needs in the most efficient way. Once the needs are met, the temperature to the boiler that operates is restored immediately so that it is readily available again.
  • the amount and size of the tanks may vary according to the needs for hot water of each project.
  • the device contains numerous boilers, hot water exit for consumption is single and always priory passing through a buffer tank common for all boilers, thus ensuring seamless flow of hot water for consumption.
  • the device uses the hot water which is produced by the solar energy in order to meet the consumption demands. In cases where production of hot water from the solar energy is not possible, the consumption needs can be covered through the operation of electrical resistances.
  • the device has the ability to connect with electrical resistances as it is illustrated in Figure 1.
  • the device can alternatively be connected to an external hot water source.
  • An exemplaiy schematic diagram of the basic components of the device module which includes the ability to connect with external supply system is shown in Figure 2.
  • Figure 3 illustrates the internal structure of the device.
  • FIG. 1 illustrates a first embodiment of the device including all the individual components that contribute to its operation.
  • the boilers’ operation cascade sequence for covering the hot water needs begins by using stored hot water of the 1 st boiler (4).
  • the valve (20) opens in order to supply hot water to the buffer (38) through the pipe (60).
  • valve (22) of the 2 nd boiler (6), the valve (24) of the 3 rd boiler (8) and the valve (26) of the 4 th boiler (10) are closed in order not to allow the flow of hot water from those boilers for consumption and as a result to avoid loss of temperature.
  • valve (12) of the 1 st boiler (4), the valve (14) of the 2 nd boiler (6), the valve (16) of the 3 rd boiler (8) and the valve (18) of the 4 th boiler (10) are open in order for the thermal conductive liquid to flow from the solar panels via supply pipe (44) into the heat exchanger of all boilers of the device, as the solar radiation is sufficient to keep the water temperature in all boilers within the desired limits.
  • the thermal conductive liquid returns to the solar panels via pipe (42).
  • valve (20) of the lst boiler (4) which no longer has the desired water temperature to cover the demand, will be closed and the valve (22) of the 2 nd boiler (6) will be opened, which will supply with hot water the buffer (38) via the pipe (60).
  • valve (22) of the 2 nd boiler (6) which no longer has the desired water temperature to cover the demand, will be closed and the valve (24) of the 3 rd boiler (8) will be opened, which will supply with hot water the buffer (38) via the pipe (60).
  • the measured value by the temperature sensor (32) 3 rd boiler (8) will fall below the minimum, adjustable, allowable temperature. Then, if there is additional demand for hot water, the needs will be covered with the water contained in the 4 th boiler (10).
  • valve (24) of the 3 rd boiler (8) which no longer has the desired water temperature to cover the demand, will be closed and the valve (26) of the 4 th boiler (10) will be opened, which will supply with hot water the buffer (38) via the pipe (60).
  • valve (20) of the 1 st boiler (4), and valve (22) of the 2 nd boiler (6) will remain closed.
  • valve (12) of the 1 st boiler (4) or valve (14) of the 2 nd boiler (6) or valve (16) of the 3 rd boiler (8) or valve (18) of the 4 th (10) boiler is open, then the circulation pump (40) is also open in order to circulate the thermal conductive liquid from solar panels to the heat exchangers of the boilers of the device. In any other case, the circulation pump is closed (40).
  • the electrical resistance (52) of the 1 st boiler (4) is enabled as well as the electrical resistance (54) of the 2 nd boiler (6), the electrical resistance (56) of the 3 rd boiler (8) and the electrical resistance (58) of the 4 th boiler (10).
  • the electrical resistances follow the same cascade operation above described for the boilers (see par.no 31).
  • FIG. 2 illustrates a second embodiment of the structure of the device including all the components that contribute to the operation of the device.
  • the produced hot water from the external source flows via the supply water pipe (82) to the heat exchangers of all boilers.
  • the valve (90) of the 3 rd boiler (8) and the valve (92) of the 4 th boiler (10) open in order to have the water flow properly through the heat exchanger (94) of the 1 st boiler (4), the heat exchanger (96) of the 2 nd boiler (6), the heat exchanger (98) of the 3 rd boiler (8) and the heat exchanger (100) of the 4 th boiler (10) in order to heat the water contained in each boiler.
  • the cold water returns to the extra source unit via the return water pipe (84).
  • FIG. 3 shows the structure of the device. It illustrates the position of the individual components of the device.
  • the position of the components is such that the optimal utilization of available space within the device is achieved. In this manner easier maintenance process is also ensured.
  • the device is a compact structure with sealed metallic frame (106). On one side of the device are the boilers (4,6,8,10) which are fixed with special fasteners (104) that keep them firmly in place. For safety reasons, this part of the device is covered with a special removable cover (114).
  • the buffer (34), the expansion tank for cold water (110), the expansion tank for solar system (108) and the box which contains the controller of the system (102) are mounted. All of the components are fixed with special fasteners. The valves of the system are placed into a specially formulated space (112) which is covered with special removable cover for safety reasons.
  • FIG. 4 illustrates the characteristics of the housing of the device.
  • the housing of the device (106) is metallic and features special hooks (204) at the top for easy transport.
  • Access to the interior is through the opening door (202) on the front of the device.
  • the door has an embedded lock (206).
  • the order of cascade of the boilers or the resistances described above is indicative.
  • the order of the tank cascade operation is determined by the system controller.
  • the controller constantly checks the system status and accordingly selects the order of the cascade between the tanks. If, for example, a boiler or valve is damaged, the controller will override it and give a start command to the valve of the next available tank.
  • Input means any point on the device for which the controller is informed of a measured value or its operating status.
  • Output means every component of the device the operation of which is controlled by the controller,
  • the controller collects all necessary data of the device operation process (temperature, operating status, etc.) and alter appropriate processing of the collected data, activates through the outputs the appropriate devices (valves, pumps, electrical resistances, etc.).
  • the operating logic of the controller is based on optimal operation of the device.
  • the controller can perform complex processes in order to continuously and optimally meet the hot water needs at any circumstance (sec par. no 69)
  • the controller has an Ethernet port in order to connect to the network. This allows remote communication, control and configuration of the device.
  • All collected data on the device can be stored in the built-in flash memory or in an external USB flash drive. Thus, a complete log of the device’s operation is created,
  • FIG. 5 System with more than one devices.
  • the device can easily expand scalable, as per installation’s requirements, in a corresponding number of such devices,
  • the number of devices is indicative and can be adapted to the needs of the project.
  • die device has the possibility to connect with an external source of hot water production (Boiler, Heat Pump, Gas Boiler or any other hot water production system). Thus, there will be hot water production in any circumstance.
  • Boiler Heat Pump, Gas Boiler or any other hot water production system.
  • the device has the possibility to connect with two solar system arrays which have different inclination (east-west).
  • the devices have the possibility to connect with two solar system arrays which have different inclination (east-west).
  • the number of devices is indicative and can be adapted to the needs of the project.

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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)

Abstract

La présente invention est un dispositif de distribution thermique solaire tout-en-un, de taille unique et prêt à l'emploi. Tous les processus sont réalisés à l'intérieur et aucune structure supplémentaire n'est nécessaire. Le fonctionnement du système est basé sur la surveillance constante de la température des chaudières contenues dans le dispositif. Les valeurs de température mesurées sont lues par le dispositif de commande de système qui, en fonction de la demande d'eau chaude souhaitée, procède à la distribution appropriée d'eau entre les chaudières. À cet effet, le dispositif de commande contrôle un système de vannes correctement installées, qui font également partie du système. L'objectif du système est d'offrir la réponse optimale et la plus économique à des besoins en eau chaude. Le dispositif utilise une technologie en cascade à sortie unique et à réservoirs multiples pour une accélération plus rapide de la température de l'eau, ce qui permet d'obtenir de multiples niveaux d'économies de l'eau et des sources d'énergie de secours traditionnelles. De plus, une distribution optimale d'eau chaude est également obtenue.
PCT/GR2018/000049 2018-10-16 2018-10-16 Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude WO2020079458A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/GR2018/000049 WO2020079458A1 (fr) 2018-10-16 2018-10-16 Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GR2018/000049 WO2020079458A1 (fr) 2018-10-16 2018-10-16 Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude

Publications (1)

Publication Number Publication Date
WO2020079458A1 true WO2020079458A1 (fr) 2020-04-23

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PCT/GR2018/000049 WO2020079458A1 (fr) 2018-10-16 2018-10-16 Dispositif thermique solaire à système de circulation forcée et cascade de chaudières, son procédé de fonctionnement et son utilisation pour la production d'eau chaude

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405443A1 (fr) * 1977-10-07 1979-05-04 Chatelain Michel Procede et dispositif de regulation d'une installation de chauffage solaire
WO1992006336A1 (fr) * 1990-09-27 1992-04-16 Gledhill (Water Storage) Limited Ameliorations apportees aux systemes de chaudiere centrale
US5660165A (en) 1994-06-07 1997-08-26 Bradford White Corporation Back-up heater
EP0897090A1 (fr) * 1997-08-13 1999-02-17 Josef Mayrhofer Installation solaire
US20070227529A1 (en) 2006-03-29 2007-10-04 Fafco, Inc. Kit for solar water heating system
US20120017886A1 (en) 2008-08-12 2012-01-26 Bradford White Corporation Solar heating system with back-up electric heating
EP2503251A2 (fr) * 2011-03-21 2012-09-26 Robert Egg Dispositif d'échangeur de chaleur-accumulateur

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2405443A1 (fr) * 1977-10-07 1979-05-04 Chatelain Michel Procede et dispositif de regulation d'une installation de chauffage solaire
WO1992006336A1 (fr) * 1990-09-27 1992-04-16 Gledhill (Water Storage) Limited Ameliorations apportees aux systemes de chaudiere centrale
US5660165A (en) 1994-06-07 1997-08-26 Bradford White Corporation Back-up heater
EP0897090A1 (fr) * 1997-08-13 1999-02-17 Josef Mayrhofer Installation solaire
US20070227529A1 (en) 2006-03-29 2007-10-04 Fafco, Inc. Kit for solar water heating system
US20120017886A1 (en) 2008-08-12 2012-01-26 Bradford White Corporation Solar heating system with back-up electric heating
EP2503251A2 (fr) * 2011-03-21 2012-09-26 Robert Egg Dispositif d'échangeur de chaleur-accumulateur

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