WO2011104592A1 - Chauffe-eau plat doté de réservoirs de stockage à capacité réduite - Google Patents

Chauffe-eau plat doté de réservoirs de stockage à capacité réduite Download PDF

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Publication number
WO2011104592A1
WO2011104592A1 PCT/IB2011/000121 IB2011000121W WO2011104592A1 WO 2011104592 A1 WO2011104592 A1 WO 2011104592A1 IB 2011000121 W IB2011000121 W IB 2011000121W WO 2011104592 A1 WO2011104592 A1 WO 2011104592A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
tacc
water heater
water
timp
Prior art date
Application number
PCT/IB2011/000121
Other languages
English (en)
Inventor
Stefano Ferroni
Roberto Paolinellli
Angelo Mancini
Roberto Sampaolesi
Alessandro Stopponi
Original Assignee
Ariston Thermo S.P.A.
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 Ariston Thermo S.P.A. filed Critical Ariston Thermo S.P.A.
Priority to PL11729155T priority Critical patent/PL2529159T3/pl
Priority to ES11729155.9T priority patent/ES2444394T3/es
Priority to RU2011151660/12A priority patent/RU2493496C2/ru
Priority to CN201180002546.5A priority patent/CN102472507B/zh
Priority to EP11729155.9A priority patent/EP2529159B1/fr
Publication of WO2011104592A1 publication Critical patent/WO2011104592A1/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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • F24D17/0031—Domestic hot-water supply systems with conventional heating means with accumulation of the heated water
    • 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
    • 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
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • 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
    • F24H15/281—Input from user
    • 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

Definitions

  • the object of the present invention is a storage water heater known as flat.
  • standard storage water heater or simply “standard water heater” it is meant a storage water heater provided with a single cylindrical tank;
  • predetermined storage temperature Tacc or simply “storage temperature Tacc” it is meant the maximum storage temperature at which the thermostatic adjustment means allow to maintain the water stored in the water heater;
  • the storage temperature Tacc is a typical parameter of each model of water heater, generally equal to 60 - 75 °C and lower by at least 10 - 15 °C than the storage temperature compatible with the safety standards;
  • set temperature Timp it is meant the optional water temperature that may be set by the user which can at most be equal to the storage temperature Tacc;
  • Capacity Vc it is meant the overall volume of water contained in the tanks one water heater is provided with;
  • Useful water volume Vu it is meant the maximum volume of water at usage temperature Tu obtainable in a single drawing from a water heater maintained at the maximum temperature allowed by the manufacturer;
  • flat storage water heater or, more briefly, “flat water heater”, it is meant a storage water heater that has one of the three dimensions, in particular the distance between front face and back face, that is the thickness, significantly reduced compared to the corresponding one of an equivalent standard water heater.
  • a flat water heater While with the same capacity Vc, a flat water heater has a larger outside dispersing surface and a higher cost than a standard water heater, such equipment is more appreciated as it has a more pleasant appearance and is less cumbersome in the room it is installed in.
  • the considerably smaller thickness of flat water heaters compared to that of an equivalent standard water heater is due to the use of a flat tank and/or to the use of two or more tanks with a reduced thickness compared to the diameter of the single tank of the standard water heater.
  • the "upstream” one receives the cold water to be heated and the "downstream” one sends it hot to the utilities.
  • flat water heater will denote flat water heaters using two or more tanks, preferably but not necessarily cylindrical, because the present invention refers to them, excluding those using a single flat tank.
  • the heating system it may be either electrical or by fuel without distinction.
  • the so-called “mixing” phenomenon is well known in storage water heaters, which may substantially be synthesised in that the cold water, entering the tank, upon each drawing of hot water mixes with the stored hot water, making a part that had already exceeded the minimum temperature required (equal to the usage temperature Tu) drop below the same, thus reducing the volume of useful water Vu compared to that theoretically possible for that tank volume.
  • the stronger the "mixing" phenomenon the larger the storage tank volume, must be compared to that theoretically required.
  • Two storage water heaters having the same capacity Vc and where water is maintained at the same storage Tacc may not be equivalent, according to the meaning given herein to this term, because in one the mixing phenomenon may be stronger than in the other. In other words, with the same thermal energy stored, the volume of useful water Vu may be very different.
  • Documents IT 1345007 and IT 1345037 propose means for pre-heating, to the expense of the thermal energy already stored in the water heater, the cold water coming from the waterworks before it mixes with the water in the tank.
  • the negative effects of mixing are reduced as the amount is reduced for the water that, after reaching a temperature higher than or equal to, that of usage Tu, returns to be unusable as it has already cooled below such level by the effect of mixing with the incoming colder water.
  • the means indicated in these two documents are effective, however they require additional heat exchangers the cost whereof is not always justified.
  • a flat water heater has a smaller capacity Vc than that of an equivalent standard water heater; such reduction substantially depends, with the same storage temperature Tacc, on the passage section of the upstream tank.
  • the object of the present invention is to indicate methods and means for further reducing the water volume contained in a flat water heater compared to that of the equivalent standard water heater.
  • reference numeral 1 globally indicates the essential parts of the flat water heater according to the preferred version.
  • the thermal insulation (not shown in the figure) there are seated two storage tanks 2.M and 2.V connected in series; the upstream tank 2.M receives the cold water to be heated and the downstream tank 2. V distributes the hot water to the utilities.
  • the preferred version of the invention shown in fig. 1 and whereto the following description refers, provides for said storage tanks 2.M and 2.V to have the same dimensions, be cylindrical with diameter substantially equal to half that of the tank of an equivalent standard water heater and connected in series to one another.
  • reference numeral 3 indicates a flange suitable for closing the bottom opening and reference numeral 4 indicates a sheath wherein one or more sensors of thermo-regulators TR.M, TR.V (not shown) may be seated, which keep each tank 2.M and 2.V to the set temperature, by actuating/deactivating the heating bodies 5, herein represented by electrical resistances 5.
  • Reference numeral 6 indicates the inlet tube of cold water from the waterworks whereon a flow baffle 7, per se known, is fitted, shaped so as to minimise the turbulences upon the entrance of water into the tank, so as to reduce the negative effects of mixing.
  • Reference numeral 8 indicates the outlet tubes of the hot water drafted at the dome of tanks 2.M and 2.V; more precisely, tube 8 of tank 2.M directs the water stored therein towards tank 2.V, through a connecting union 9, whereas tube 10 of tank 2.V directs the water stored therein towards the utilities.
  • thermo-regulators TR.M and TR.V are calibrated so as to keep the water in the upstream tank 2.M at a higher temperature TM, which is equal to the storage temperature Tacc of the downstream tank 2.V increased by an overtemperature ATacc which is preferably comprised between 8 and 12 °C and even more preferably, is equal to 10 °C.
  • TM storage temperature
  • ATacc overtemperature
  • the mixing effect is reduced since a smaller part of the water of the upstream tank 2.M, kept at storage temperature TM, is cooled to a lower temperature than the usage temperature Tu when it mixes with the incoming cold water.
  • Vu.teor Vc x (Tacc - Th) / (Tu - Th)
  • Such flat water heater (herein indicated with FLAT.l) is equivalent to the previous standard water heater, if its two tanks have a volume of 36 litres each (that is, a capacity Vc equal to 72 rather than 76 litres, with a 5% volume reduction).
  • a flat water heater with such storage temperatures (herein indicated with FLAT.2) is equivalent to the standard water heater if its tanks have a volume of 33 litres each (that is, a capacity Vc equal to 66 rather than 76 litres, with a 13% volume reduction compared to the standard reference water heater); in fact, for such volumes the useful water volume Vu in laboratory is always equal to said 126 litres.
  • the theoretical useful water volume Vu.teor of FLAT.2 is equal to 145 litres and the usability coefficient Cu becomes 0.87; substantially the same as FLAT.1.
  • the flat water heater FLAT.l may be constructed with an overall surface SE.l of the outer shell equal to 1.8 m using the currently used thicknesses of insulating material; using the same thicknesses, since the flat water heater FLAT.2 has a reduced size, it has an overall surface SE.2 of the outer shell equal to 1.69 m (with a 6% reduction compared to the FLAT.l).
  • the thermal dispersions may be deemed as proportional to the average inside temperature of the water heater and to the surface of the outer shell, it is easy to check that if the temperature of the room where the flat water heaters FLAT.l and FLAT.2 are installed is 20 °C, FLAT.2 has thermal dispersions of just 4% higher than those of FLAT.l; said slight increase in the dispersions may be totally eliminated by slightly increasing the thickness of the thermal insulation (substantially a 4% thickness increase) while obtaining a flat water heater with a considerably lower production cost than the FLAT.l thanks to the 13% reduction in the tank volume and substantially 6% of the outer shell.
  • the numerical example has shown that using the setting system for the storage temperatures Tacc, TM according to the invention, it is possible to reduce costs and overall dimensions of a flat water heater while mamtaining the same performance as regards useful water volume Vu and energy consumption.
  • thermo-regulators TR.M and TR.V may be devices of any known type, electromechanical or electronic, physically separate or in any case, independent of one another.
  • thermo-regulator TR.V is calibrated for mamtaining a predetermined temperature Tacc in tank 2.V
  • thermo-regulator TR.M is calibrated so as to maintain the upstream tank 2.M at a storage temperature TM equal to Tacc + ATacc.
  • thermo-regulators TR.V, TR.M are of the user-adjustable type, they are such as not to accept the setting of higher temperatures, respectively, than Tacc and TM.
  • thermo-regulators TR.M and TR.V can advantageously consist of a single electronic device TR provided with data processing capabilities that ensures the thermo-regulation of both tanks 2.M and 2.V and that optionally, is in turn part of an electronic control unit suitable for performing further functions.
  • the set temperature Timp selected by the user is assigned to the downstream tank 2.V whereas a storage temperature TM equal to Timp + ATacc is automatically assigned to the upstream tank 2.M.
  • Timp is such that Timp + ATacc is compatible with the safety standards.
  • the electronic device TR determines and sets the minimum heating temperatures Timp required so as to ensure in both tanks, and only when the required amount of water is so large to require the elimination of the mixing effects, the storage temperature TM of the upstream tank 2.M is set equal to Timp + ATacc.
  • the invention has been described with reference to a flat water heater provided with two storage tanks 2.M and 2.V having the same dimensions, cylindrical with diameter substantially equal to half that of the tank of an equivalent standard water heater and connected in series to one another.
  • the invention relates to flat water heaters using two or more tanks, not necessarily cylindrical nor having the same volume, with heating either electrical or by fuel without distinction and where the cold water is received by an upstream storage tank 2.M and hence sent to subsequent tanks 2.V, without distinction connected to one another in series or parallel.

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

L'objet de la présente invention est de fournir un procédé permettant de gérer la température de chauffage d'un chauffe-eau plat (1) constitué d'au moins deux réservoirs de stockage (2.M, 2.V) connectés en série l'un à l'autre. Ledit procédé permet à l'eau présente dans le réservoir en amont (2.M) d'être maintenue à une température de stockage (TM) supérieure à une température excessive prédéterminée (ATacc) par rapport à la température de stockage (Tacc) de l'eau contenue dans le réservoir en aval (2.V).
PCT/IB2011/000121 2010-01-29 2011-01-25 Chauffe-eau plat doté de réservoirs de stockage à capacité réduite WO2011104592A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL11729155T PL2529159T3 (pl) 2010-01-29 2011-01-25 Płaski podgrzewacz wody ze zbiornikami magazynowymi o zmniejszonej pojemności
ES11729155.9T ES2444394T3 (es) 2010-01-29 2011-01-25 Calentador de agua plano con depósitos de acumulación de capacidad reducida
RU2011151660/12A RU2493496C2 (ru) 2010-01-29 2011-01-25 Плоский водонагреватель с баками-накопителями уменьшенной вместимости
CN201180002546.5A CN102472507B (zh) 2010-01-29 2011-01-25 平板式热水器及用于管理平板式热水器的加热温度的方法
EP11729155.9A EP2529159B1 (fr) 2010-01-29 2011-01-25 Chauffe-eau plat doté de réservoirs de stockage à capacité réduite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITAN2010A000005A IT1397805B1 (it) 2010-01-29 2010-01-29 Scaldacqua flat provvisto di serbatoi di volume ridotto
ITAN2010A000005 2010-01-29

Publications (1)

Publication Number Publication Date
WO2011104592A1 true WO2011104592A1 (fr) 2011-09-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/000121 WO2011104592A1 (fr) 2010-01-29 2011-01-25 Chauffe-eau plat doté de réservoirs de stockage à capacité réduite

Country Status (7)

Country Link
EP (1) EP2529159B1 (fr)
CN (1) CN102472507B (fr)
ES (1) ES2444394T3 (fr)
IT (1) IT1397805B1 (fr)
PL (1) PL2529159T3 (fr)
RU (1) RU2493496C2 (fr)
WO (1) WO2011104592A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014064556A1 (fr) * 2012-10-26 2014-05-01 2 & Go Dispositif pour chauffer de l'eau à fonction de chauffage rapide
CN105020894A (zh) * 2014-04-21 2015-11-04 广东顺德光晟电器股份有限公司 电热水器用双桶塑料内胆
FR3045789A1 (fr) * 2015-12-22 2017-06-23 Winslim Chauffe-eau sanitaire multi-cuves a accumulation d'eau chaude
US9799201B2 (en) 2015-03-05 2017-10-24 Honeywell International Inc. Water heater leak detection system
US9885484B2 (en) 2013-01-23 2018-02-06 Honeywell International Inc. Multi-tank water heater systems
US9920930B2 (en) 2015-04-17 2018-03-20 Honeywell International Inc. Thermopile assembly with heat sink
US10088852B2 (en) 2013-01-23 2018-10-02 Honeywell International Inc. Multi-tank water heater systems
US10119726B2 (en) 2016-10-06 2018-11-06 Honeywell International Inc. Water heater status monitoring system
US10132510B2 (en) 2015-12-09 2018-11-20 Honeywell International Inc. System and approach for water heater comfort and efficiency improvement
US10670302B2 (en) 2014-03-25 2020-06-02 Ademco Inc. Pilot light control for an appliance
US10969143B2 (en) 2019-06-06 2021-04-06 Ademco Inc. Method for detecting a non-closing water heater main gas valve
IT202000009331A1 (it) * 2020-04-29 2021-10-29 Ariston S P A Scaldacqua flat provvisto di serbatoi collegati in parallelo
EP3985313A1 (fr) 2020-10-15 2022-04-20 Viessmann Climate Solutions SE Installation de distribution de chaleur
WO2022229477A1 (fr) * 2021-04-28 2022-11-03 Inerox Industries Sl Réservoir d'accumulation d'eau chaude sous pression en matériau plastique et chauffe-eau électrique
US11592852B2 (en) 2014-03-25 2023-02-28 Ademco Inc. System for communication, optimization and demand control for an appliance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109612068A (zh) * 2018-10-22 2019-04-12 中山市恒乐电器有限公司 一种热水器系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291023A (en) * 1940-02-02 1942-07-28 Burkay Company Double temperature water heating unit
US2852018A (en) * 1954-09-23 1958-09-16 Smith Corp A O Two temperature water heating system
US3461854A (en) * 1968-01-08 1969-08-19 Smith Corp A O Water heating system
GB1248178A (en) * 1969-05-05 1971-09-29 Vaillant Joh Kg Forced-circulation water heater for closed-circuit heating systems
DE3928074A1 (de) * 1989-08-25 1991-02-28 C T C Waermetauscher Gmbh Verfahren und warmwasserspeicher zur verringerung des legionella-infektionsrisikos
US20040079749A1 (en) 2002-10-28 2004-04-29 Young Randy S. Multi-tank water heater
DE202005012380U1 (de) * 2005-08-03 2005-11-17 Tiegel Gmbh Vorrichtung zur Erwärmung von Brauchwasser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU71735U1 (ru) * 2007-11-08 2008-03-20 Федеральное государственное унитарное предприятие "Пензенское производственное объединение электронной вычислительной техники" (ФГУП "ППО ЭВТ") Водонагреватель проточно-накопительный бытовой

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2291023A (en) * 1940-02-02 1942-07-28 Burkay Company Double temperature water heating unit
US2852018A (en) * 1954-09-23 1958-09-16 Smith Corp A O Two temperature water heating system
US3461854A (en) * 1968-01-08 1969-08-19 Smith Corp A O Water heating system
GB1248178A (en) * 1969-05-05 1971-09-29 Vaillant Joh Kg Forced-circulation water heater for closed-circuit heating systems
DE3928074A1 (de) * 1989-08-25 1991-02-28 C T C Waermetauscher Gmbh Verfahren und warmwasserspeicher zur verringerung des legionella-infektionsrisikos
US20040079749A1 (en) 2002-10-28 2004-04-29 Young Randy S. Multi-tank water heater
DE202005012380U1 (de) * 2005-08-03 2005-11-17 Tiegel Gmbh Vorrichtung zur Erwärmung von Brauchwasser

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2997480A1 (fr) * 2012-10-26 2014-05-02 2 & Go Dispositif de chauffage d'eau avec fonction chauffage rapide.
WO2014064556A1 (fr) * 2012-10-26 2014-05-01 2 & Go Dispositif pour chauffer de l'eau à fonction de chauffage rapide
US10088852B2 (en) 2013-01-23 2018-10-02 Honeywell International Inc. Multi-tank water heater systems
US9885484B2 (en) 2013-01-23 2018-02-06 Honeywell International Inc. Multi-tank water heater systems
US11592852B2 (en) 2014-03-25 2023-02-28 Ademco Inc. System for communication, optimization and demand control for an appliance
US10670302B2 (en) 2014-03-25 2020-06-02 Ademco Inc. Pilot light control for an appliance
CN105020894A (zh) * 2014-04-21 2015-11-04 广东顺德光晟电器股份有限公司 电热水器用双桶塑料内胆
US10049555B2 (en) 2015-03-05 2018-08-14 Honeywell International Inc. Water heater leak detection system
US9799201B2 (en) 2015-03-05 2017-10-24 Honeywell International Inc. Water heater leak detection system
US10692351B2 (en) 2015-03-05 2020-06-23 Ademco Inc. Water heater leak detection system
US9920930B2 (en) 2015-04-17 2018-03-20 Honeywell International Inc. Thermopile assembly with heat sink
US10738998B2 (en) 2015-04-17 2020-08-11 Ademco Inc. Thermophile assembly with heat sink
US10989421B2 (en) 2015-12-09 2021-04-27 Ademco Inc. System and approach for water heater comfort and efficiency improvement
US10132510B2 (en) 2015-12-09 2018-11-20 Honeywell International Inc. System and approach for water heater comfort and efficiency improvement
WO2017108579A1 (fr) * 2015-12-22 2017-06-29 Winslim Chauffe-eau sanitaire multi-cuves à accumulation d'eau chaude
FR3045789A1 (fr) * 2015-12-22 2017-06-23 Winslim Chauffe-eau sanitaire multi-cuves a accumulation d'eau chaude
US10119726B2 (en) 2016-10-06 2018-11-06 Honeywell International Inc. Water heater status monitoring system
US10969143B2 (en) 2019-06-06 2021-04-06 Ademco Inc. Method for detecting a non-closing water heater main gas valve
IT202000009331A1 (it) * 2020-04-29 2021-10-29 Ariston S P A Scaldacqua flat provvisto di serbatoi collegati in parallelo
EP3904780A1 (fr) * 2020-04-29 2021-11-03 Ariston Thermo S.p.A. Chauffe-eau de type plat comportant des réservoirs connectés en parallèle
EP3985313A1 (fr) 2020-10-15 2022-04-20 Viessmann Climate Solutions SE Installation de distribution de chaleur
DE102020127089A1 (de) 2020-10-15 2022-04-21 Viessmann Climate Solutions Se Wärmeverteilanlage
WO2022229477A1 (fr) * 2021-04-28 2022-11-03 Inerox Industries Sl Réservoir d'accumulation d'eau chaude sous pression en matériau plastique et chauffe-eau électrique

Also Published As

Publication number Publication date
IT1397805B1 (it) 2013-02-01
CN102472507A (zh) 2012-05-23
ITAN20100005A1 (it) 2011-07-30
PL2529159T3 (pl) 2014-04-30
EP2529159A1 (fr) 2012-12-05
RU2493496C2 (ru) 2013-09-20
CN102472507B (zh) 2014-08-20
EP2529159B1 (fr) 2013-10-30
ES2444394T3 (es) 2014-02-24

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