EP2664858B1 - Anschluß zur Fixierung an einem Gas-Wasser-Heizer um eine zuzätzliche zentrale Heizfunktion zu realisieren - Google Patents

Anschluß zur Fixierung an einem Gas-Wasser-Heizer um eine zuzätzliche zentrale Heizfunktion zu realisieren Download PDF

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Publication number
EP2664858B1
EP2664858B1 EP13167832.8A EP13167832A EP2664858B1 EP 2664858 B1 EP2664858 B1 EP 2664858B1 EP 13167832 A EP13167832 A EP 13167832A EP 2664858 B1 EP2664858 B1 EP 2664858B1
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EP
European Patent Office
Prior art keywords
fluid
water heater
pipelines
gas
gas water
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Application number
EP13167832.8A
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English (en)
French (fr)
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EP2664858A3 (de
EP2664858A2 (de
Inventor
Thomas Kupka
Zhongqin Zhu
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Vaillant GmbH
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Vaillant GmbH
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Publication of EP2664858A3 publication Critical patent/EP2664858A3/de
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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
    • 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
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components
    • 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
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components
    • F24H9/144—Valve seats, piping and heat exchanger connections integrated into a one-piece hydraulic unit

Definitions

  • the present invention relates to an adapter for water heating apparatus, and more particularly to an adapter being attachable to a gas water heater to achieve an additional central heating function.
  • Gas water heating apparatuses generally includes gas water heaters and gas boilers.
  • a typical gas water heater can provide sanitary hot water for domestic usage, such as use in the kitchen, laundry, and bath.
  • the water heater may include a gas burner for combustion of a gas-air mixture, heat exchanger coils for heating water as it flow therethrough, and hydraulic pipes connected with external plumbling for supplying hot water.
  • a typical gas boiler is operable to heat water which is pumped around a boiler circuit.
  • the boiler circuit is typically connected, via suitable valves to space heaters, such as radiators or under floor heating loop, so that the heat output from the boiler can be used for central heating purposes.
  • European patent application publication EP 2 093 517 A1 discloses a traditional gas bolier.
  • This gas boiler has a casing containing a burner, a main heat exchanger, and an expansion vessel, etc..
  • a hydraulic assembly is provided as an essential component of the gas boiler to establish a hydraulic connection between the main heat exchanger and external water facilities.
  • the hydraulic assembly includes a circulation pump, a secondary heat exchanger, a three-way valve, and a number of tubes. The hydraulic assembly can be pre-assembled and then mounted to a right position within the gas boiler.
  • an adapter capable of being attached to a gas water heater and connecting to external radiators to achieve an additional central heating function.
  • the adapter is defined in claim 1.
  • the adapter includes a second diverter valve when the second fluid pipelines is used for supplying sanitary hot water; wherein the second diverter valve is operable to permit the fluid incoming line and the first fluid passageway to alternatively intercommunicate with the second outlet tube.
  • the existing gas water heater can be upgraded to a gas boiler by simple modifications.
  • the total invest is reduced for users, and cost of development and manufacturing is decreased for manufactures.
  • Gas water heaters and gas boilers could be fired with combustible gas, such as natural gas, city gas, liquefied petroleum gas, methane, etc., thereby supplying hot water and/or heating living space for domestic sanitary usage and heating purpose.
  • combustible gas such as natural gas, city gas, liquefied petroleum gas, methane, etc.
  • a gas water heater 1 includes a first housing 10, a first controller 101 (as shown in Fig. 1 ) accommodated in the first housing 10, an exhaust gas device 102, a main heat exchanger 103, a burner 104, an air supply fan 105, a gas valve 1061, a gas distribution device 1062, a flow rate control valve 107, and a first inlet tube 11, a first outlet tube 12, a gas supply pipe 13 extending out of the first housing 10.
  • the first controller 101 is capable of controlling combustion of the burner 104, operation of the air supply fan 105, and opening of the gas valve 1061, etc..
  • the first controller 101 may incorporate a Micro Controller Unit (MCU).
  • MCU Micro Controller Unit
  • the first controller 101 can also use other types of integrated circuits, such as Application Specific Integrated Circuit (ASIC) and Field Programmable Gate Array (FPGA) etc..
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the first housing 10 may be in box-shaped and composed of a number of plates, such as a front plate, a back plate, a top plate, a bottom plate, and a pair of side plates.
  • the first housing 10 can be mounted to a wall of a building with its back plate facing the wall.
  • the burner 104 may be constituted by a number of burner blades (not shown) arranged side by side. Each burner blade generally defines therein a gas-air mixture passage for mixing fuel gas supplied from the gas supply pipe 13 and combustion air supplied by the air supply fan 105, and delivering the gas-air mixture to top thereof for being ignited and burning.
  • the main heat exchanger 103 is placed above the burner 104.
  • the main heat exchanger 103 may include multiple heat absorbing fins and a heat absorbing pipe passing through the multiple heat absorbing fins.
  • the heat absorbing pipe is connected with an upstream water supply channel and a downstream hot water delivering channel. Water passing through the first inlet tube 11 and the upstream water supply channel is then heated in the main heat exchanger 103 by heat interchanging with combustion exhaust gas of the burner 104. Heated hot water is fed to the downstream hot water delivering channel and further passes through the first outlet tube 12 for domestic sanitary use.
  • the exhaust gas device 102 is placed upon the main heat exchanger 103, which includes a hood and an discharging duct disposed on top of the hood.
  • the hood collects flue gas generated by the burner 104 passing through the heat exchanger 103, and then the flue gas is discharged to the outdoors through the discharging duct.
  • the air supply Fan 105 is provided in a lower portion of the first housing 10, which is operated to supply outside air to the burner 104 as combustion air, also, force the flue gas to be discharged outdoors.
  • the gas valve 1061 is connected with the gas supply pipe 13 and incorporates a main valve operable to turn-on or shutoff the gas flow and a proportional valve operable to control a combustion amount of the burner 103.
  • the fuel gas passing through the gas valve 1061 and the gas distribution device 1062 is ejected into the burner 104, and then mixes with combustion air for being ignited.
  • the first inlet tube 11 and the first outlet tube 12 are provided upstream and downstream of the main heat exchanger 103, respectively, for introduction of cold water and output of hot water.
  • the first inlet tube 11 is connected with the flow rate control valve 107 disposed at downstream thereof for adjusting the flow rate.
  • the first controller 101 is able to determine an appropriate flow rate in accordance with detection of cold water temperature value, hot water temperature value, target temperature value set by the user, as well as the amount of gas supply, and then control the flow rate control valve 107 to adjust the flow rate to the desired value.
  • the first controller 101 can control the flow rate control valve 107 to adjust the flow rate to output a smaller water flow corresponding to current water pressure level, so as to ensure the gas water heater can be used normally even at a lower water pressure level. Furthermore, in some cases, the actual water temperature could not reach the preset temperature even opening of the gas valve 1061 reaches the maximum degree when the gas water heater works in winter, in this circumstance, the first controller 101 can control the flow rate control valve 107 to adjust the flow rate to a lower value, thereby allowing the temperature of output hot water can reach the preset value.
  • the adapter 2 includes a second housing 20, a heat exchanger 201 contained in the second housing 2, a first diverter valve 203, a second diverter valve 202, a first circulation pump 204, a second circulation pump 205, a expansion vessel 206, a safety valve 207, an NTC thermistor 208, a flow sensor 209, a fill valve 210, a second controller 211, and a second inlet tube 22 and a second outlet tube 21 both extending out of the second housing 2.
  • the second controller 211 is provided for control the operation of electric or electronic components in the adapter 2, such as the first and the second diverter valves, and the first and the second circulation pumps.
  • the second controller 211 may incorporate a Micro Controller Unit (MCU).
  • MCU Micro Controller Unit
  • the second controller 211 can also use other types of integrated circuits, such as Application Specific Integrated Circuit (ASIC) and Field Programmable Gate Array (FPGA) etc..
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • connection interface may be defined as any of the structures and electrical connections formed between the gas water heater 1 and the adapter 2.
  • connection interface may be defined as any of the structures and electrical connections formed between the gas water heater 1 and the adapter 2.
  • the first inlet tube 11 of the gas water heater 1 engages with the second outlet tube 21 of the adapter 2
  • the first outlet tube 12 of the gas water heater 1 engages with the second inlet tube 22 of the adapter 2.
  • first inlet tube 11 and the second outlet tube 21 each is formed with outer threads thereof, and a pipe joint 23 with inner threads can connect these two parts together; similarly, another pipe joint 24 can connect the first outlet tube 12 and the second inlet tube 22 together.
  • connection interface may include an electrical connector assembly 25 which consists of an electrical connector, e.g. a male connector, disposed in the gas water heater 1 and electrically connected with the first controller 101, and a complementary electrical connector, e.g. a female connector, disposed in the adapter 2 and electrically connected with the second controller 211. Therefore, the first controller 101 and the second controller 211 can establish an electrical communication path therebetween by means of engagement of the two connectors. For example, when the flow sensor 209 detects there is water incoming into the adapter 2, a signal will be generated and fed to the second controller 211, then the second controller 211 determines the incoming water need to be heated and sends a signal to the first controller 101 through the electrical connector assembly 25. After that, the first controller 101 is operable to turn on the gas valve 1061, ignite the burner, and continuously control related electric components to heat the incoming water and maintain the water temperature at a preset value.
  • an electrical connector assembly 25 which consists of an electrical connector, e.g. a male connector, disposed
  • the heat exchanger 201 may be a conventional plate heat exchanger typically uses metal plates to transfer heat between two fluids.
  • the heat exchanger 201 includes a first fluid passageway 2011 and a second fluid passageway 2012, wherein the first fluid passage 2011 and the second fluid passageway 2012 are physically isolated but allowing heat interchanging therebetween.
  • plate heat exchangers are known in the art, a detailed description of structure and functional operation are omitted for purpose of brevity and simplicity.
  • the adapter 2 includes a second housing 20, and a first fluid pipelines, a second fluid pipelines 212, and a third fluid pipelines provided in the second housing 20.
  • the first fluid pipelines are used to establish a fluid path between the gas water heater 1 and the heat exchanger 201.
  • the first fluid pipelines includes the section between the second inlet tube 22 and the first diverter valve 203, the section between the first diverter valve 203 and the first circulation pump 204, the section between the first circulation pump 204 and the second diverter valve 202, and the section between the second diverter valve 202 and the second outlet tube 21. Therefore, the first fluid passageway 2011 forms one portion of the first fluid pipelines.
  • the second fluid pipelines 212 forms a closed circuit established between the external radiators 5 and the heat exchanger 201, and the second fluid passageway 2012 forms one portion of the second fluid pipelines 212.
  • the third fluid pipelines is used to connect to external plumbling, and includes a fluid incoming line 2131 for introduction of water and a fluid outgoing line 2132 for output of heated water.
  • the first diverter valve 203 and the second diverter valve 202 each employs a three-way valve.
  • the typical three-way valve includes a central port and two side ports, and the central port is able to alternatively intercommunicate with the two side ports.
  • the central port thereof receives the incoming water from the gas water heater 1 passing through the second inlet tube 22, and two side ports intercommunicate with the first fluid passageway 2011 and the fluid outgoing line 2132 respectively.
  • the second controller 211 is operable to control the first diverter valve 203 to alternatively connect to the first fluid passageway 2011 and the fluid outgoing line 2132, in other words, only one of the first fluid passageway 2011 and the fluid outgoing line 2132 is allowed to intercommunicate with the gas water heater 1 at one time.
  • the central port outputs water to the gas water heater 1 via the second outlet tube 21, and two side ports intercommunicate with the first fluid passageway 2011 and the fluid incoming line 2131 respectively.
  • the second controller 211 is operable to control the second diverter valve 202 to alternatively connect to the first fluid passageway 2011 and the fluid incoming line 2131, in other words, only one of the first fluid passageway 2011 and the fluid incoming line 2131 is allowed to fluid communicate with the gas water heater 1 at one time.
  • the first circulation pump 204 is disposed associated with the first fluid passageway 2011.
  • the first fluid pipelines and the hydraulic pipes of the gas water heater 1 form a closed circuit
  • the first circulation pump 204 is disposed in the first fluid pipelines for driving fluid to circulate between the gas water heater 1 and the heat exchanger 201.
  • the second circulation pump 205 is disposed in the closed loop formed by the second fluid pipelines 212 for driving fluid to circulate between the external radiators 5 and the heat exchanger 201.
  • the expansion vessel 206 and the safety valve 207 are connected to the second fluid pipelines 212 to absorb excess pressure caused by thermal expansion and release the pressure when the pressure value within the second fluid pipelines exceeds a predetermined threshold, thereby protecting the closed loop from excessive pressure.
  • the thermistor 208 is disposed in the second fluid pipelines 212 to monitor the temperature value of the fluid circulating therein.
  • the flow sensor 209 is provided in the fluid incoming line 2131 for sensing the incoming water.
  • the fill valve 210 is provided between fluid incoming line 2131 and the second fluid pipelines 212 to add water in case the closed loop of the second fluid pipelines 212 lacks of water.
  • Fig. 1 which shows an assembly 100 composed by the gas water heater 1 attached with the adapter 2 and equivalent to a conventional gas-fired boiler. As the assembly works at the mode shown in Fig. 1 , it supplies hot water for domestic usage.
  • the flow sensor 209 detects an incoming water flow
  • a signal is generated and transmitted to the second controller 211, then the second controller 211 controls the first diverter valve 203 to establish a fluid path between the gas water heater 1 and the fluid outgoing line 2132, and controls the second diverter valve 202 to establish a fluid path between the gas water heater 1 and the fluid incoming line 2131.
  • the first fluid passageway 2011 is blocked, thus, the heat exchanger 201 and the radiators 5 are both disabled.
  • the incoming water sequentially passes through the fluid incoming line 2131, the second diverter valve 202, the second outlet tube 21 and enters the gas water heater 1 to be heated; then the heated water sequentially passes through the second inlet tube 22, the first diverter valve 203, and the fluid outgoing line 2132 to supply hot water to users for drinking or bathing.
  • the assembly works at the mode shown in Fig. 2 , it achieves the function of central heating.
  • the second controller 211 controls the first diverter valve 203 and the second diverter valve 202 to connect the first fluid passageway 2011 to the gas water heater 1 to form a closed loop.
  • the fluid incoming line 2131 and the fluid outgoing line 2132 are both blocked, and the second controller 211 controls the operation of the first circulation pump 204 and the second circulation pump 205.
  • the water heated by the gas water heater 1 passes through the first fluid passageway 2011 exchange heat with the fluid passing through the second fluid passageway 2012, then the heated fluid passes through the radiators 5 to dissipate heat into the room, thereby achieving the central heating function.
  • Figs. 3 and 4 shows an assembly 200 of the gas water heater 1 attached with an adapter 3 in accordance with a second embodiment of present invention.
  • the adapter 3 includes a second housing 30, a heat exchanger 301 contained in the second housing 30, a first diverter valve 302, a first circulation pump 303, a expansion vessel 304, a safety valve 305, NTC thermistors 308, 309, a flow sensor 307, a fill valve 306, a second controller 310, and a second inlet tube 32 and a second outlet tube 31 both extending out of the second housing 3. Since most of parts of this embodiment is the same or alike as those of the first embodiment, applicant will mainly describe the modifications of this embodiment with respect to the first embodiment hereinafter.
  • the adapter 3 includes a first fluid pipelines, a second fluid pipelines 312, and a third fluid pipelines, all accommodated in the second housing (30).
  • the first fluid pipelines are used to establish a fluid path between the gas water heater 1 and the heat exchanger 301.
  • the first fluid pipelines extend from the second inlet tube 32, and pass through the first diverter valve 302, the first fluid passageway 3011, and the first circulation pump 303, then get to the second outlet tube 31. Therefore, the first fluid passageway 3011 forms one portion of the first fluid pipelines.
  • the second fluid pipelines 312 is used to connect to external plumbling for supplying hot water.
  • the second fluid passageway 3012 forms one portion of the second fluid pipelines 212.
  • the flow sensor 312 and the thermistor 308 are disposed in the second fluid pipelines.
  • the third fluid pipelines connect the external radiators 5 and the heat exchanger 301 to form a closed circuit.
  • the third fluid pipelines include a fluid incoming line 3131 for introduction of water and a fluid outgoing line 3132 for output of heated water.
  • the first diverter valve 302 employs a three-way valve, and it has a central port for receiving the incoming water from the gas water heater 1 passing through the second inlet tube 32, and two side ports intercommunication with the first fluid passageway 3011 and the fluid outgoing line 3132 respectively.
  • the second controller 310 is operable to control the first diverter valve 303 to alternatively intercommunicate the first fluid passageway 3011 and the fluid outgoing line 3132, in other words, only one of the first fluid passageway 3011 and the fluid outgoing line 3132 is allowed to intercommunicate with the gas water heater 1 at one time.
  • the expansion vessel 304 and the safety valve 305 are connected to the third fluid pipelines.
  • the thermistor 309 is disposed in the third fluid pipelines.
  • the fill valve 306 is provided between the second fluid pipelines 312 and the third fluid pipelines to add water in case the closed loop composed of the third fluid pipelines and the radiators 5 lacks of water.
  • the gas water heater 1 is disposed in a closed loop all the time to perform as a heat source either in providing domestic hot water or for central heating purpose, and only one circulation pump, namely the first circulation pump 303 is pronounceded to force the fluid to circulate in the closed loop including the heat exchanger 301 or in another closed loop including the radiators 5.
  • the assembly 200 works at the mode shown in Fig. 3 , it supplies hot water for domestic usage.
  • the second controller 310 controls the first diverter valve 302 to establish a fluid path between the gas water heater 1 and the first fluid passageway 3011, thus, a closed circuit is formed.
  • the water heated by the gas water heater 1 passes through the first fluid passageway 3011 with heat interchanging with the fluid passing through the second fluid passageway 3012, and flows back the gas water heater land cycled.
  • the water passing through the second fluid passageway 3012 is heated and distributed to users for domestic usage.
  • the second controller 310 controls the first diverter valve 302 to intercommunicate with the first fluid passageway 3011 and the gas water heater 1 to form a closed loop. In the mean time, the second controller 310 controls the operation of the first circulation pump 303 to force the fluid heated by the gas water heater 1 to pass through the second inlet tube 32, the first diverter valve 302, the fluid outgoing line 3132, the radiators 5 to dissipate heat into the room space, and enters the gas water heater 1 via the fluid incoming line 3131, thereby achieving the central heating function.
  • the existing gas water heater can be upgraded to a gas boiler by simple modifications.
  • the total invest is reduced for users, and cost of development and manufacturing is decreased for manufactures.
  • the adapter can be designed as a backpack, and the connection interface can take plug-in forms, therefore, when the existing gas water heater need to be modified as a gas boiler, just plug the adapter into the gas water at the connection interface.
  • the second controller in the adapter can be omitted, and all the operation of the electrical components in the adapter can be controlled by the first controller disposed in the gas water heater.

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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)
  • Water Supply & Treatment (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Cookers (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)

Claims (2)

  1. Adapter (2, 3), der imstande ist, an einen Gas-Wasser-Heizer (1) angeschlossen zu werden, und mit externen Radiatoren (5) verbunden zu werden, um eine zusätzliche Zentralheizungsfunktion zu erzielen, Folgendes umfassend:
    eine erste Flüssigkeitsrohrleitung, um in strömungstechnischer Kommunikation mit dem Gas-Wasser-Heizer zu sein; und
    eine zweite Flüssigkeitsrohrleitung und eine dritte Flüssigkeitsrohrleitung, wobei eine der zweiten und dritten Flüssigkeitsrohrleitung angepasst ist, um mit externen Radiatoren verbunden zu werden, und die andere der zweiten und dritten Flüssigkeitsrohrleitung angepasst ist, um eine externe Installation zu verbinden, um Warmwasser für den Hausgebrauch zuzuführen;
    einen Wärmetauscher (201, 301), umfassend einen ersten Flüssigkeitsdurchlass (2011, 3011) und einen zweiten Flüssigkeitsdurchlass (2012, 3012); wobei der erste Flüssigkeitsdurchlass einen Abschnitt der ersten Flüssigkeitsrohrleitung bildet, und der zweite Flüssigkeitsdurchlass einen Abschnitt der zweiten Flüssigkeitsrohrleitung bildet; wobei
    die dritte Flüssigkeitsrohrleitung eine Flüssigkeitseingangsleitung (2131, 3131) und eine Flüssigkeitsausgangsleitung (2132, 3132) umfasst; wobei der Adapter weiter ein erstes Umschaltventil (203, 302), ein zweites Einlassrohr (22, 32) und ein zweites Auslassrohr (21, 31) umfasst, die sich beide aus der Seite des Gehäuses erstrecken, und mit der ersten Flüssigkeitsrohrleitung verbunden sind, um jeweils Eingabeflüssigkeit von, und Ausgabeflüssigkeit zum Gas-Wasser-Heizer zu sein, und das erste Umschaltventil betreibbar ist, um es zu ermöglichen, dass die Flüssigkeitsausgangsleitung und der erste Flüssigkeitsdurchlass abwechselnd mit dem zweiten Einlassrohr zu kommunizieren
    dadurch gekennzeichnet, dass der Adapter ein Gehäuse unabhängig von dem Gas-Wasser-Heizer umfasst, wobei das Gehäuse die erste Flüssigkeitsrohrleitung, die zweite Flüssigkeitsrohrleitung, die dritte Flüssigkeitsrohrleitung, den Wärmetauscher und das erste Umschaltventil aufnimmt; und eine Verbindungsschnittstelle, die auf einer Seite des Gehäuses angeordnet ist, die zum Gas-Wasser-Heizer zeigt, um den Adapter mit dem Gas-Wasser-Heizer zu verbinden, der imstande ist, Warmwasser zuzuführen, um eine zusätzliche Zentralheizungsfunktion zu erzielen.
  2. Adapter nach Anspruch1, weiter ein zweites Umschaltventil (202) umfassend, wenn die zweite Flüssigkeitsrohrleitung verwendet wird, um Sanitärwarmwasser zuzuführen; wobei das zweite Umschaltventil betreibbar ist, um es der Flüssigkeitseingangsleitung und dem ersten Flüssigkeitsdurchlass zu erlauben, abwechselnd mit dem zweiten Auslassrohr zu kommunizieren.
EP13167832.8A 2012-05-19 2013-05-15 Anschluß zur Fixierung an einem Gas-Wasser-Heizer um eine zuzätzliche zentrale Heizfunktion zu realisieren Active EP2664858B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210171125.1A CN102818368B (zh) 2012-05-19 2012-05-19 附加器、燃气热水器、及附加器和燃气热水器组件

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EP2664858A2 EP2664858A2 (de) 2013-11-20
EP2664858A3 EP2664858A3 (de) 2016-09-07
EP2664858B1 true EP2664858B1 (de) 2022-12-21

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ES (1) ES2938870T3 (de)

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CN106152480A (zh) * 2016-09-30 2016-11-23 芜湖美的厨卫电器制造有限公司 燃气热水器
CN106765508A (zh) * 2016-12-05 2017-05-31 中山市思源电器有限公司 一种便利取暖的多通道中间换热装置
CN109028550A (zh) * 2018-08-10 2018-12-18 万家乐热能科技有限公司 一种燃气采暖热水炉
CN112656264B (zh) * 2020-12-16 2022-04-15 董丽萍 一种可进行预热的儿科护理清洗装置
CN114574330B (zh) * 2022-05-06 2022-07-08 成都剀瑞环保工程有限公司 用于住宅供暖的沼气能转化结构

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ES2938870T3 (es) 2023-04-17
EP2664858A3 (de) 2016-09-07
CN102818368A (zh) 2012-12-12
CN102818368B (zh) 2014-10-29
EP2664858A2 (de) 2013-11-20

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