[go: up one dir, main page]

EP3910260A1 - Chauffe-eau électrique - Google Patents

Chauffe-eau électrique Download PDF

Info

Publication number
EP3910260A1
EP3910260A1 EP21171426.6A EP21171426A EP3910260A1 EP 3910260 A1 EP3910260 A1 EP 3910260A1 EP 21171426 A EP21171426 A EP 21171426A EP 3910260 A1 EP3910260 A1 EP 3910260A1
Authority
EP
European Patent Office
Prior art keywords
water
water tank
cover
electric
water heater
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
EP21171426.6A
Other languages
German (de)
English (en)
Inventor
Du an Necas
Marián Má ik
Jan Martinek
Miroslav Hránek
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.)
Vaillant GmbH
Protherm Production sro
Original Assignee
Vaillant GmbH
Protherm Production sro
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 Vaillant GmbH, Protherm Production sro filed Critical Vaillant GmbH
Publication of EP3910260A1 publication Critical patent/EP3910260A1/fr
Pending legal-status Critical Current

Links

Images

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
    • F24H1/185—Water-storage heaters using electric energy supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/033—Component parts; Auxiliary operations characterised by the magnetic circuit
    • B03C1/0332—Component parts; Auxiliary operations characterised by the magnetic circuit using permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/28—Magnetic plugs and dipsticks
    • B03C1/286—Magnetic plugs and dipsticks disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
    • 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
    • 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
    • F24H9/0005—Details for water heaters
    • F24H9/0042—Cleaning arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/18—Magnetic separation whereby the particles are suspended in a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/28—Parts being designed to be removed for cleaning purposes

Definitions

  • Electric water heaters in the known state of art are equipped with a watertight water tank made of metal or durable plastic, usually in the shape of a cylinder, inside which at least one heating element, for example in the form of a spiral or rod, and heated water of a certain volume are arranged.
  • the electric water heater can also include heating regulation or control, the control circuits being connected to the safety elements of the electric heater, in particular to temperature sensors of various constructions and similar devices.
  • the tank of an electric water heater is generally connected simultaneously to the supply of cold water, to the discharge of hot water and to the electric power supply.
  • the cold water supplied to the inlet of the electric water heater is heated to the desired temperature by means of heating elements and, if necessary, is discharged via the outlet of the heater.
  • Such an electric heater is usually part of heating system with closed-loop heating water. It can be used as a backup water heater in heating systems based on heat pumps.
  • the most common sources of impurities in the circulating fluid are corrosion from pipelines and radiators and limescale.
  • a device for separating both non-magnetic and magnetic solid particles from water circulating in a closed-loop central heating system is disclosed in the publication EP2271432 B1 .
  • This device based on the principle of a cyclone filter includes a cover, which is arranged so that the particles entrained in the water are separated by vortex separation when the water flows downwards; the device further includes a sleeve located inside the cover such that an outer circulatory channel is defined between the cover and the sleeve.
  • This device further includes a magnet located inside the cover of the device, through which water from the central heating flows. As water moves around the magnet, the magnet collects magnetic particles entrained in the water.
  • a specific disadvantage of an electric water heater is that the scale is formed to a large extent on the heating elements in the tank of the electric heater and forms a continuous layer on them. Its sudden peeling off and flow into the heating water circuit in the system can cause serious system failures.
  • a suitable solution would be to filter out solid impurities directly in the tank of the electric heater, thus improving the functionality of the system.
  • No known electric water heater connected to a closed-loop heating water system uses its own volume to capture and remove solid impurities from the closed heating water circuit, all known connections trap solid impurities using filters and separators located outside the heated water tank.
  • the electric water heater according to the presented invention is arranged to consist of a water tank, the outer cover of which has a shape of a cylinder terminated at the bottom by a cone, and a concentric wall inside the tank, the shape of which corresponds to the cylindrical part of the tank cover.
  • a concentric wall By means of the concentric wall, two separate circulation channels are formed inside the tank - an outer circulation channel and an inner circulation channel.
  • Heating elements are arranged in the inner circulation channel. This arrangement helps to change the direction and speed of the water flow when moving through one circulation channel from top to bottom and the other circulation channel from bottom to top.
  • the upper section of the tank cover has a larger cross-sectional area than the lower section of the tank cover.
  • the upper section of the tank cover is substantially cylindrical and the lower section of the cover is substantially conical.
  • the water flow slows down, so that entrained particles can fall out of the water flow more easily, and the conical area, to which the drain valve can be connected, allows to capture of both magnetic and non-magnetic solid particles.
  • the electric water heater according to the described invention equipped with a concentric wall inside its tank, thus integrates the function of a solid impurities separator.
  • One advantageous arrangement comprises at least one magnet (magnetic separator) arranged inside the tank of the electric water heater for separating magnetic solid impurities.
  • Another advantageous arrangement comprises a special deflector near the inlet, by means of which cold water is mixed much more slowly in the lower part of the heater, thus maintaining the temperature of the already heated water.
  • the inlet and the outlet are located near the upper section of the tank cover, in particular in order to maximize the surface areas with which the downward and upward flows can come into contact.
  • the electric water heater is a part of a closed-loop heating water system and other devices are connected in this system (for example heating controller and control, circulation pump, valves, plate heat exchanger, etc.), which are known to experts in the current state of art and need not be described.
  • Fig. 1 schematically shows the electric water heater according to the presented invention with the arrows indicating the water flow direction inside the electric heater.
  • the cold water inlet 1 and the hot water outlet 2 are arranged in the tank of the electric water heater so that the water flowing through the electric heater flows from the cold water inlet 1 to the hot water outlet 2.
  • the cover 4 of the electric water heater tank consists of a cylindrical part, which is attached to the flange in its upper section, and of a conical part, which connects to the cylindrical part of the cover 4 of the tank in its lower section.
  • the heating elements 3 protrude from the flange into the tank, and a connection for the cold water inlet 1 is also located in the flange.
  • the electric water heater further includes the concentric wall 5 of a shape corresponding to the cylindrical part of the water tank cover, which is located inside the electric water heater tank so that an outer circulation channel is defined between the tank cover 4 and the concentric wall 5.
  • Cold water enters the device through the inlet 1 in the flange and then flows in the inner circulation channel defined by the concentric wall 5, in the direction indicated by the arrows, around the heating elements 3 downwards near the concentric wall 5.
  • the water encounters obstacles, which are on the one hand the heating elements 3, and also the concentric wall 5.
  • the water flows towards the lowest end of the conical part of the tank cover 4 and the flow rate slows downwards.
  • the entrained solid impurities in the water impinge on the heating elements 3 and the concentric wall 5 separate from the water stream and due to deceleration, they fall to the bottom of the conical part. They settle in the zone 8 for settling solid impurities.
  • the hot water outlet 2 is open to the external circulation channel and passes through the cover 4 of the electric water heater tank near its upper section.
  • Fig. 1 further shows, by means of arrows, an upward flow of heated water in the electric water heater. As shown, the water flows upwards through the outer circulation channel until it reaches the hot water outlet 2.
  • the deflector 11 is located in the tank near the cold water inlet 1, and it ensures that the cold water fed to the inlet 1 is directed towards the heating elements 3 and does not flow directly down into the lower part of the tank of the electric water heater. This advantageous arrangement maintains the temperature of the water already heated.
  • Water flowing through the heater flows from the cold water inlet 1 to the hot water outlet 2.
  • the drain valve is connected to the zone 8 for settling solid impurities and the impurities can be removed from the system.
  • Fig. 3 shows the electric water heater 200, which is in this example a backup (auxiliary) electric heating source for a heat pump system, and it represents an advantageous embodiment of the invention.
  • the cover 4 of the electric water heater 200 tank consists of a cylindrical part, which is attached to the flange in its upper section, and of a conical part, which connects to the cylindrical part of the cover 4 of the tank in its lower section.
  • Several heating elements 3 protrude from the flange into the tank, and a connection for the cold water inlet 1 is also located in the flange. Water flowing through the heater flows from the inlet 1 to the outlet 2.
  • the electric water heater further includes a concentric wall 5 according to the presented invention.
  • the drain valve is connected to the zone 8 for settling solid impurities and the impurities can be removed from the system. Magnetic impurities are removed by pulling out the magnets.

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)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Details Of Fluid Heaters (AREA)
EP21171426.6A 2020-05-12 2021-04-30 Chauffe-eau électrique Pending EP3910260A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SK76-2020U SK8995Y1 (sk) 2020-05-12 2020-05-12 Elektrický ohrievač vody

Publications (1)

Publication Number Publication Date
EP3910260A1 true EP3910260A1 (fr) 2021-11-17

Family

ID=72291249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21171426.6A Pending EP3910260A1 (fr) 2020-05-12 2021-04-30 Chauffe-eau électrique

Country Status (2)

Country Link
EP (1) EP3910260A1 (fr)
SK (1) SK8995Y1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4102140A1 (fr) 2021-06-13 2022-12-14 Vaillant GmbH Module hydraulique pour systèmes de chauffage à pompe à chaleur
EP4290155A1 (fr) 2022-06-06 2023-12-13 Vaillant GmbH Chauffage électrique ptc
EP4325137A1 (fr) 2022-08-15 2024-02-21 Vaillant GmbH Chauffage électrique ptc modulaire
DE102023128874A1 (de) * 2023-10-20 2025-04-24 Stiebel Eltron Gmbh & Co. Kg Haustechnik-Heizeinheit
EP4617584A1 (fr) 2024-03-11 2025-09-17 Vaillant GmbH Chauffage électrique ptc

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014502A1 (fr) * 1995-10-16 1997-04-24 Paulus Wolfs Dispositif d'extraction de parties magnetisables
WO1999039139A1 (fr) * 1998-02-02 1999-08-05 Frasure Charles J Appareil d'entretien d'un chauffe-eau ne comportant pas de depot
WO2010128497A2 (fr) * 2009-05-07 2010-11-11 Moshe Abraham Unité de chauffage d'eau instantané pour une introduction dans un réservoir de stockage d'eau chaude
EP2271432B1 (fr) 2008-04-03 2015-05-06 Alpha Fry Limited Séparateur de particules

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997014502A1 (fr) * 1995-10-16 1997-04-24 Paulus Wolfs Dispositif d'extraction de parties magnetisables
WO1999039139A1 (fr) * 1998-02-02 1999-08-05 Frasure Charles J Appareil d'entretien d'un chauffe-eau ne comportant pas de depot
EP2271432B1 (fr) 2008-04-03 2015-05-06 Alpha Fry Limited Séparateur de particules
WO2010128497A2 (fr) * 2009-05-07 2010-11-11 Moshe Abraham Unité de chauffage d'eau instantané pour une introduction dans un réservoir de stockage d'eau chaude

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4102140A1 (fr) 2021-06-13 2022-12-14 Vaillant GmbH Module hydraulique pour systèmes de chauffage à pompe à chaleur
EP4290155A1 (fr) 2022-06-06 2023-12-13 Vaillant GmbH Chauffage électrique ptc
EP4325137A1 (fr) 2022-08-15 2024-02-21 Vaillant GmbH Chauffage électrique ptc modulaire
DE102023128874A1 (de) * 2023-10-20 2025-04-24 Stiebel Eltron Gmbh & Co. Kg Haustechnik-Heizeinheit
EP4617584A1 (fr) 2024-03-11 2025-09-17 Vaillant GmbH Chauffage électrique ptc

Also Published As

Publication number Publication date
SK762020U1 (sk) 2020-09-03
SK8995Y1 (sk) 2021-01-27

Similar Documents

Publication Publication Date Title
EP3910260A1 (fr) Chauffe-eau électrique
EP2271432B1 (fr) Séparateur de particules
SU1655535A1 (ru) Устройство дл двухступенчатой сепарации жидкостей различной плотности с автоматическим выпуском
US20050173337A1 (en) Method and apparatus for separating immiscible phases with different densities
US20120073790A1 (en) Wastewater heat recovery device and method thereof
JP2008307442A (ja) 汚れのないクリーン液を取得可能としたスラッジ濾過装置およびその方法
US5904756A (en) Mist recovering method and apparatus
CN105642014A (zh) 一种可拆洗式离心涡流过滤装置及其循环过滤系统
CN106032473A (zh) 高频电聚结式高效油气水三相分离器
US7785465B2 (en) Apparatus and method for de-watering and purifying fuel oils and other liquids
US3289839A (en) Filtering equipment for fluids
EP1198276B1 (fr) Perfectionnement de l'injection d'un courant d'eau charge de solides dans un separateur centrifuge
EP3229933B1 (fr) Séparateur et procédé
US20160346792A1 (en) Device for filtering a liquid by cyclonic effect
EP1125620B1 (fr) Séparateur
JP2003190713A (ja) 夾雑物分離用除塵装置および夾雑物分離除塵システム
SU1681911A1 (ru) Центробежный сепаратор
JP7317153B1 (ja) 異物除去装置
JP7186936B1 (ja) 異物除去装置
CN215667881U (zh) 一种提高餐厨垃圾提油率的装置
KR200149548Y1 (ko) 현탁물질 제거장치
WO1998011976A1 (fr) Dispositifs de separation de fluides
CN218339064U (zh) 水循环管路固液分离器
EP0671197A1 (fr) Décanteur pour liquides à purifier
CN208832794U (zh) 一种去除空调系统中杂质的处理系统

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

B565 Issuance of search results under rule 164(2) epc

Effective date: 20211008

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220513

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240326