EP4215835A1 - A bi-functional electric boiler - Google Patents

A bi-functional electric boiler Download PDF

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Publication number
EP4215835A1
EP4215835A1 EP23460001.3A EP23460001A EP4215835A1 EP 4215835 A1 EP4215835 A1 EP 4215835A1 EP 23460001 A EP23460001 A EP 23460001A EP 4215835 A1 EP4215835 A1 EP 4215835A1
Authority
EP
European Patent Office
Prior art keywords
boiler
water
jacket
stub pipe
pipe
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.)
Pending
Application number
EP23460001.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Tomasz Siemienczuk
Mariusz Kuzma
Katarzyna Ronewicz
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.)
AIC Sp zoo
Original Assignee
AIC Sp zoo
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 AIC Sp zoo filed Critical AIC Sp zoo
Publication of EP4215835A1 publication Critical patent/EP4215835A1/en
Pending legal-status Critical Current

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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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/225—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating electrical central heating boilers
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/02—Resistances

Definitions

  • the invention concerns a bi-functional electric boiler to be used in central heating and/or domestic water installations.
  • polish patent application P.323023 is a universal electric boiler with a small-capacity tank fixed to the body on the outside, where placed inside the tank is an electric heating element which heats water up to the desired temperature.
  • the top part of the tank is connected to the top part of the body with a pipe through which hot water from the tank flows to the top part of the body of the electric boiler.
  • the tank is connected to the bottom part of the body via a coupler through which cold water in the tank is replenished.
  • Fixed to the bottom part of the body is a pipe which supplies cold water, where there is a blocking element fitted above its inlet.
  • WO 2009/096508 A1 a device which heats water and supplies hot water, incorporating a container for storing hot domestic water heated by a heat pump. Fitted in the said container there is a pipe coil and electric heating element.
  • the hot water container features the first water outlet opening positioned near and above the electric heating element, and the water return opening positioned in the bottom part of the container.
  • a pressureless electric water heater for domestic use having a cylindrical double-walled tank for holding a quantity of a heat transfer liquid such as water. Cold water enters a copper coil immersed in the heat transfer liquid. The heat transfer liquid is heated by an electric heating element that extends down a tank.
  • the described invention solves the problem of boiler water circulation in a bi-functional electric boiler which combines boiler water system and domestic water system in a single device.
  • the purpose of the invention is to minimise the size of the device supplying boiler water to the central heating installation and hot domestic water.
  • Another purpose of the invention is to simplify the structure of a bi-functional electric boiler while retaining its high thermal performance.
  • a bi-functional electric boiler incorporating an external jacket closed on both sides with lids (top and bottom), electric heating elements, inlet and outlet stub pipes for boiler water, and inlet and outlet stub pipes for domestic water is characterised in that there are electric heating elements fitted in the bottom lid positioned in the bottom part of the boiler, where the elements are encased in an internal jacket, and where between the external jacket and the internal jacket there is a chamber with a pipe coil placed therein, the pipe coil fitted with an inlet stub pipe for the domestic water and an outlet stub pipe for the heated domestic water, where the chamber within the internal jacket is connected in the top part of the boiler to the said chamber formed between the external jacket and internal jacket, the inlet stub pipe for boiler water is connected to the chamber within the internal jacket, and the outlet stub pipe for the heated boiler water is connected to the chamber formed between the external jacket and the internal jacket, where the said inlet stub pipe for the boiler water, outlet stub pipe for the heated boiler water, and the inlet s
  • the chamber formed within the internal jacket is connected to the chamber formed between the external jacket and the internal jacket along the top edge of the internal jacket, where the edge is shaped so that there are slots formed between the said top edge of the internal jacket and the top lid, or the chamber formed within the internal jacket is connected to the chamber formed between the external jacket and the internal jacket via the openings in the internal jacket arranged along its top edge.
  • the inlet stub pipe for domestic water is positioned in the bottom lid
  • the outlet stub pipe for the heated domestic water is positioned in the top lid.
  • the boiler has an additional outlet stub pipe for the heated boiler water, positioned in the top lid.
  • Using the boiler water flow in the configuration according to the invention allows to reduce the size of the entire device and simplify its structure, and guarantees counter-current flow in the domestic water heating system.
  • the boiler incorporates an external jacket 1 closed on both sides with lids: the bottom lid 2 positioned in the bottom part of the boiler and the top lid 3 positioned in the top part of the boiler opposite the bottom lid 2, electric heating elements 4, inlet stub pipe 5 for boiler water, and outlet stub pipe 6 for heated boiler water.
  • electric heating elements 4 Fitted in the bottom lid 2 are electric heating elements 4 encased in the internal jacket 7.
  • the chamber within the internal jacket 7 is connected to the said chamber formed between the external jacket 1 and the internal jacket 7 in the top part of the boiler.
  • the inlet stub pipe 5 for the boiler water is connected to the chamber within the internal jacket 7, whereas the outlet stub pipe 6 for heated boiler water is connected to the chamber formed between the external jacket 1 and the internal jacket 7.
  • the inlet stub pipe 5 for boiler water and the outlet stub pipe 6 for heated boiler water are positioned in the bottom part of the boiler, above the bottom lid 2.
  • the inlet stub pipe 9 for domestic water is positioned in the bottom lid 2
  • the outlet stub pipe 10 for heated domestic water is positioned in the top lid 3.
  • the chamber formed within the internal jacket 7 is connected to the chamber formed between the external jacket 1 and the internal jacket 7 along the top edge 11 of the internal jacket which is shaped so that there are slits 11a formed between the said top edge 11 of the internal jacket 7 and the top lid 3.
  • the chamber formed within the internal jacket 7 is connected to the chamber formed between the external jacket 1 and the internal jacket 7 via the openings in the internal jacket 7 positioned along its top edge 11.
  • Boiler water flows through the stub pipe 5 positioned above the bottom lid 2 into the chamber within the internal jacket 7 and pressure forces its transport up towards the top lid 3, where water flows around the hot heating elements 4 fitted in the bottom lid 2.
  • Heated boiler water flows through slits 11a into the chamber between the external jacket 1 and internal jacket 7 and flows down towards the lid 2, flowing around the pipe coil 8, following which it flows out through the stub pipe 6 positioned above the bottom lid 2 and then is directed into the central heating installation, whereupon it is returned to the boiler through the inlet stub pipe 5 (where in this embodiment the additional outlet stub pipe 12 for heated boiler water is either closed or the boiler is devoid of it altogether).
  • Domestic cold water flows into the pipe coil 8 through the stub pipe 9 positioned in the bottom lid 2 and pressure forces its transport up towards the top lid 3, in counter-current direction with respect to the heated boiler water which flows around the pipe coil 8 and heats the domestic water contained therein.
  • the heated domestic water leaves the boiler via the outlet stub pipe 10 positioned in the top lid 3.
  • the boiler described above is fitted with an additional outlet stub pipe 12 for heated boiler water, positioned in the top lid 3.
  • the system of domestic water circulation is closed and the outlet stub pipe 6 for the heated boiler water is closed, whereas the heated boiler water which flows to the top lid 3 is discharged through the outlet stub pipe 12 and further directed to the central heating installation, following which it is returned to the boiler via the inlet stub pipe 5, as shown in Fig. 2 .

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)
  • Details Of Fluid Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
EP23460001.3A 2022-01-23 2023-01-05 A bi-functional electric boiler Pending EP4215835A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL440197A PL244678B1 (pl) 2022-01-23 2022-01-23 Kocioł elektryczny dwufunkcyjny

Publications (1)

Publication Number Publication Date
EP4215835A1 true EP4215835A1 (en) 2023-07-26

Family

ID=85122163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23460001.3A Pending EP4215835A1 (en) 2022-01-23 2023-01-05 A bi-functional electric boiler

Country Status (2)

Country Link
EP (1) EP4215835A1 (pl)
PL (1) PL244678B1 (pl)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057312B (de) * 1957-09-07 1959-05-14 Friedrich Marx Durchlaufwarmwasserbereiter in Schwerkraftheizungen
FR2603977A1 (fr) * 1986-09-12 1988-03-18 Genie Climatique Thermique Chaudiere pour la production d'eau chaude
DE8913323U1 (de) * 1988-11-14 1989-12-21 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brauchwasserspeicher
PL323023A1 (en) 1997-11-05 1999-05-10 Zbigniew Cierpisz Versatile electric boiler
KR200269025Y1 (ko) * 2001-11-16 2002-03-20 문진열 온수겸용 난방용 보일러
US20030007790A1 (en) 2001-07-03 2003-01-09 Howard Harris Water heater
WO2009096508A1 (ja) 2008-02-01 2009-08-06 Daikin Industries, Ltd. 貯湯式暖房給湯機
EP2828587A2 (en) * 2012-03-23 2015-01-28 Aic Spó Ka Akcyjna Dual purpose heat exchanger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057312B (de) * 1957-09-07 1959-05-14 Friedrich Marx Durchlaufwarmwasserbereiter in Schwerkraftheizungen
FR2603977A1 (fr) * 1986-09-12 1988-03-18 Genie Climatique Thermique Chaudiere pour la production d'eau chaude
DE8913323U1 (de) * 1988-11-14 1989-12-21 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Brauchwasserspeicher
PL323023A1 (en) 1997-11-05 1999-05-10 Zbigniew Cierpisz Versatile electric boiler
US20030007790A1 (en) 2001-07-03 2003-01-09 Howard Harris Water heater
KR200269025Y1 (ko) * 2001-11-16 2002-03-20 문진열 온수겸용 난방용 보일러
WO2009096508A1 (ja) 2008-02-01 2009-08-06 Daikin Industries, Ltd. 貯湯式暖房給湯機
EP2828587A2 (en) * 2012-03-23 2015-01-28 Aic Spó Ka Akcyjna Dual purpose heat exchanger

Also Published As

Publication number Publication date
PL440197A1 (pl) 2023-07-24
PL244678B1 (pl) 2024-02-19

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