EP1962032A1 - Accumulateur d'eau - Google Patents

Accumulateur d'eau Download PDF

Info

Publication number
EP1962032A1
EP1962032A1 EP08002901A EP08002901A EP1962032A1 EP 1962032 A1 EP1962032 A1 EP 1962032A1 EP 08002901 A EP08002901 A EP 08002901A EP 08002901 A EP08002901 A EP 08002901A EP 1962032 A1 EP1962032 A1 EP 1962032A1
Authority
EP
European Patent Office
Prior art keywords
water
reservoir according
container
water reservoir
heating rod
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.)
Granted
Application number
EP08002901A
Other languages
German (de)
English (en)
Other versions
EP1962032B1 (fr
Inventor
Erwin Berger
Ingram Eusch
Thomas Kreiner
Erwin Stricker
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.)
RKK Beteiligungs GmbH
Original Assignee
Kioto Clear Energy AG
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 Kioto Clear Energy AG filed Critical Kioto Clear Energy AG
Publication of EP1962032A1 publication Critical patent/EP1962032A1/fr
Application granted granted Critical
Publication of EP1962032B1 publication Critical patent/EP1962032B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24H1/18—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
    • 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

Definitions

  • the invention relates to a water storage, which is integrated, for example, in a hot water and heating system, which operates on the basis of renewable energy sources.
  • This hot water requirement can be both hot water for heating and hot water, with which, for example, via a heat exchanger fresh water is heated.
  • the invention is based on the idea of arranging the additional heating in a flow channel within the water storage to heat a defined amount of water very quickly and effectively and offer the required energy quickly and inexpensively at the desired location to be able to.
  • water supply and drainage at the guide element can be self-contained, discrete supply and discharge lines. But it is also possible to feed water from the container interior in the channel-like guide element, which can be done at one or more locations.
  • the heated water can be fed via a discrete water outlet specifically downstream system components.
  • the heated water can for example be fed into a heating circuit. It can also be directed to other areas (sections, zones) of the tank (water reservoir).
  • the heating element should run over at least 80% of the length of the guide element.
  • a distance of a maximum of 25 cm, in particular not more than 10 cm or ⁇ 5 or ⁇ 2 cm, should exist between the heating element and the guide element, although the described effect also occurs (albeit reduced) if the guide element extends over the whole, for example
  • Container cross-section extends, but with limited height in the axial direction of the container.
  • the heating element may be of any shape.
  • the cylinder can be round or square (similar to a narrow but long box), for example, in cross-section trapezoidal.
  • a section of the guide element can also be formed by an intermediate bottom in the container. Together with a U-shaped or semi-circular component, the desired guide element can be completed.
  • the heating element may extend on a side of the intermediate bottom facing the bottom of the container. This has the advantage that secondary heated water (water in the vicinity of the guide element), which is indirectly heated, can rise upwards in the container. This applies analogously to any arrangement in which heating and guiding element are arranged at a distance below the water level in the container.
  • the heating rod is perpendicular to the longitudinal axis of the container, that is normally horizontal.
  • a coaxial arrangement of heating element and guide element optimizes the equalization of water heating.
  • openings can be arranged. This has the following consequences: The heated water can be introduced into the water reservoir itself if necessary. The openings can therefore be closed. If the water cycle associated with the water reservoir is closed, there are no corrosion problems.
  • the openings in the guide element should have a cross-sectional area of not more than 150 mm 2 and a total of a surface of, for example, 2,000 cm 2 , a maximum of 50 to 100 openings should be arranged.
  • the heating element can in principle be arranged anywhere within the container. According to one embodiment, the heating element is arranged in a zone of the container, which serves to feed water having a temperature ⁇ 30 ° C and / or ⁇ 70 ° C. As already described, this allows the use of indirectly dissipated heat in higher water temperature zones above.
  • the heating capacity of the heating element depends on the application. For example, for a 1- to 3-family house, the power could be between 5 and 20 kW.
  • the water supply temperature between 20 and 50 ° C
  • the temperature of the heated water between 60 and 90 ° C.
  • the invention can be integrated into the hot water and / or heating system described below. In order to apply the invention therein, not all system components and / or method steps of the system need to be met simultaneously. Depending on the requirement profile, the invention can also be realized in combination with one or more of the features described below. Likewise, it is possible that the invention features individual features within the Complete system replaced or individual system features are specifically excluded.
  • the system includes so-called primary energy heat exchangers (PWT). These include the aforementioned solar panels, air heat exchangers or geothermal probes in any number and combination. With these PWTs, primary energy, such as solar energy, becomes a heat transfer medium. hereinafter referred to as brine (for example glycol).
  • brine for example glycol
  • the system further comprises a heat pump, which consists of at least one evaporator section, a compressor, a condenser section and a decompression device, wherein the heat pump is traversed by a refrigerant, such as CO 2 or ammonia.
  • a refrigerant such as CO 2 or ammonia.
  • the evaporator section of the heat pump can be formed by a heat exchanger. This is referred to as secondary energy heat exchanger (SWT), because in the SWT, the heat transfer from the already heated in the PWT brine to the refrigerant or vice versa takes place.
  • SWT secondary energy heat exchanger
  • a SWT can also be a heat exchanger that allows heat transfer from the brine to water.
  • the condenser part of the heat pump in this terminology forms a tertiary energy heat exchanger (TWT), since in a third stage heat is transferred from the refrigerant to water.
  • TWT tertiary energy heat exchanger
  • the system also includes a so-called buffer storage, which serves a layered storage of water for at least one closed water cycle. Since warm water is lighter than cold water, the buffer tank results in a temperature gradient from top to bottom.
  • the system can be connected to at least one high-temperature heating circuit (in particular for radiators).
  • a heating circuit for low temperatures can be connected, for example, underfloor heating, which operate with flow temperatures of, for example, 20 ° -60 ° C.
  • the hot water of the buffer memory can also be used for heating fresh water, for example via an intermediate heat exchanger.
  • the buffer memory has corresponding supply and discharge lines for the circulation water.
  • the water fed into the buffer tank can be guided into the corresponding temperature zone according to its temperature.
  • At least one section (a temperature zone) of the buffer memory can have an additional heater, in particular an electric heater, in order to heat up water in the buffer memory, if required, independently of the PWTs.
  • SWT or TWT are all types of heat exchangers, especially plate heat exchangers.
  • the individual system components in particular within the functional system circuits (solar circuit, refrigerant circuit, water circuit) can be connected via suitable multi-way valves, which may be mixing valves, individually or in groups, possibly all at the same time.
  • suitable multi-way valves which may be mixing valves, individually or in groups, possibly all at the same time.
  • the invention will be explained in more detail below with reference to an embodiment.
  • the single figure shows in a highly schematic representation of a water reservoir of the type according to the invention in two, offset by 90 ° to each other views.
  • a section plane through the container is marked S-S.
  • the container comprises a bottom 10, a ceiling 12 and a peripheral wall 14, so that a total of a cylindrical container interior 16 is limited to the water intake.
  • the section plane marked S-S corresponds to the orientation of the longitudinal axis of the container.
  • the container is insulated and has at least one cold water inlet 18 and at least one hot water outlet 20.
  • the container interior 16 is subdivided into two zones 160, 16u by an intermediate floor 22, which is fastened to the ceiling 12 by rods 24, the water of the zone 16o normally having a higher temperature.
  • a heating rod 26 is arranged, which is fixed to the wall 14 and extends with several meandering turns to the opposite side of the container wall, which is not recognizable due to the offset by 90 ° graphic representation in the left part of the figure.
  • the heating rod 26 thus extends parallel below the intermediate bottom 22 and is bounded in the direction of the bottom 10 and vertically by a U-shaped box 28, as can be seen in particular from the left part of the figure.
  • a water inlet 32 opens at one end of the guide element in this and a (not shown) water drain leads at the opposite end of the heating element 26 from the water reservoir out again.
  • the line 32 is connected to a (not dargixie) pump.
  • the flow velocity of the water through the guide member 30 is controlled / controlled by a valve, not shown.
  • the heating element 26 is switched on.
  • the water which flows through the channel-like guide member 30 is thus heated and can be supplied via (not shown) connecting lines at the second end of the guide element, for example, a heating circuit or a fresh water heat exchanger.
  • openings may be arranged, which are indicated schematically at 34. These can be closed by flaps (not shown). In the case of a particularly high flow or in other system constellations, a water exchange between the guide element 30 and the container interior 16 can take place.
  • the power of the heating element 26 shown in the figure is 8 kW at a container volume of about 1,000 liters.

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)
  • Cookers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP08002901A 2007-02-26 2008-02-16 Accumulateur d'eau Not-in-force EP1962032B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007009198A DE102007009198B4 (de) 2007-02-26 2007-02-26 Wasserspeicher

Publications (2)

Publication Number Publication Date
EP1962032A1 true EP1962032A1 (fr) 2008-08-27
EP1962032B1 EP1962032B1 (fr) 2010-05-26

Family

ID=39401158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08002901A Not-in-force EP1962032B1 (fr) 2007-02-26 2008-02-16 Accumulateur d'eau

Country Status (3)

Country Link
EP (1) EP1962032B1 (fr)
AT (1) ATE469327T1 (fr)
DE (2) DE102007009198B4 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE609199C (de) * 1929-01-27 1935-02-09 Siemens Elektrowaerme Ges M B Elektrisch beheizter druckloser UEberlaufheisswasserspeicher
US4489708A (en) * 1982-04-14 1984-12-25 Kyodo Kisen Kaisha, Ltd Heating apparatus for heating liquid in a tank
US4777347A (en) * 1987-09-02 1988-10-11 Mottershead Bernard J Electric water heating tank with thermosiphonic circulation for improved heat recovery rate
US6148146A (en) * 1998-01-07 2000-11-14 Poore; Bobby L. Water heater
US6321036B1 (en) * 2000-12-04 2001-11-20 Chao-Lin Huang Electric water heater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH289319A (de) * 1953-02-20 1953-03-15 Uhlmann Geb Heisswasserspeicher.
DE3017996A1 (de) * 1980-05-10 1981-11-12 Peter 8260 Mühldorf Trieb Boiler mit hochleistungswaermetauscher
DE3226461A1 (de) * 1982-07-15 1984-01-19 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Warmwasserspeicherbehaelter
DE8508613U1 (de) * 1985-03-22 1985-06-05 Theodor Hettler GmbH + Co, 7900 Ulm Elektrisch beheizter Brauchwasserwärmer
DE102005001509A1 (de) * 2005-01-13 2006-07-27 Paradigma Energie- Und Umwelttechnik Gmbh & Co. Kg Thermische Schichtleiteinrichtung für Elektroheizeinsätze in Wärmespeichern

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE609199C (de) * 1929-01-27 1935-02-09 Siemens Elektrowaerme Ges M B Elektrisch beheizter druckloser UEberlaufheisswasserspeicher
US4489708A (en) * 1982-04-14 1984-12-25 Kyodo Kisen Kaisha, Ltd Heating apparatus for heating liquid in a tank
US4777347A (en) * 1987-09-02 1988-10-11 Mottershead Bernard J Electric water heating tank with thermosiphonic circulation for improved heat recovery rate
US6148146A (en) * 1998-01-07 2000-11-14 Poore; Bobby L. Water heater
US6321036B1 (en) * 2000-12-04 2001-11-20 Chao-Lin Huang Electric water heater

Also Published As

Publication number Publication date
DE102007009198B4 (de) 2011-04-28
EP1962032B1 (fr) 2010-05-26
DE502008000699D1 (de) 2010-07-08
DE102007009198A1 (de) 2008-09-11
ATE469327T1 (de) 2010-06-15

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