EP0276475B1 - Einrichtung zum Volumenausgleich für einen Warmwasserbereiter - Google Patents

Einrichtung zum Volumenausgleich für einen Warmwasserbereiter Download PDF

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Publication number
EP0276475B1
EP0276475B1 EP19870119183 EP87119183A EP0276475B1 EP 0276475 B1 EP0276475 B1 EP 0276475B1 EP 19870119183 EP19870119183 EP 19870119183 EP 87119183 A EP87119183 A EP 87119183A EP 0276475 B1 EP0276475 B1 EP 0276475B1
Authority
EP
European Patent Office
Prior art keywords
water
bellows
overflow
water tank
tank
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.)
Expired - Lifetime
Application number
EP19870119183
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0276475A3 (en
EP0276475A2 (de
Inventor
Rolf Dipl.-Ing. Kurz
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.)
Forbach GmbH and Co KG
Original Assignee
Forbach GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6318669&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0276475(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Forbach GmbH and Co KG filed Critical Forbach GmbH and Co KG
Priority to AT87119183T priority Critical patent/ATE67582T1/de
Publication of EP0276475A2 publication Critical patent/EP0276475A2/de
Publication of EP0276475A3 publication Critical patent/EP0276475A3/de
Application granted granted Critical
Publication of EP0276475B1 publication Critical patent/EP0276475B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24H1/18—Water-storage heaters
    • F24H1/188—Water-storage heaters with means for compensating water expansion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/6416—With heating or cooling of the system
    • Y10T137/6606—With electric heating element

Definitions

  • the invention relates to a device for volume compensation for a water heater according to the preamble of claim 1.
  • Low-pressure or open water heaters such as hot water tanks
  • the overflow pipe must never be closed because the expansion water that forms when the contents of the water tank are heated drips down.
  • the amount of escaping overflow or expansion water depends on the temperature increase and the volume of the water tank.
  • the expansion water is drained off via the overflow pipe or the tap or outlet tap of a mixer fitting suitable for low-pressure devices.
  • This drop of expansion water now leads to limescale deposits at the outlet opening of the consumer tap and at the mouth of the overflow pipe. Furthermore, they also reduce the outlet cross section of the overflow pipe. This can result in dangerous dynamic pressures. Regular and cumbersome descaling with acidic agents is therefore essential.
  • a water heater with a device for volume compensation for its water tank in which the water to be heated in a cold water inlet and one Hot water spout-containing water tank can be heated and stored.
  • a temperature-dependent actuator is assigned to the water tank, by means of which the volume of the water tank can be changed in accordance with the temperature-related volume expansion of the stored water.
  • This actuator is either designed as a temperature-dependent bulging bimetallic expansion floor and inserted in a wall area of the water tank or the actuator is designed as an expansion zone inserted in an annular wall area of the water tank, the axial extent of which to the ring plane can be changed in a temperature-dependent manner, or the actuator is longitudinally temperature-dependent and clamped between two opposite, elastically deflectable water tank membrane walls.
  • the actuator can be longitudinally variable depending on the temperature and supported at one end on a container wall and the other on a compressible membrane chamber arranged on an opposite water container wall, or the actuator can be longitudinally variable depending on the temperature and clamped between two opposite water container walls, the water container having a circular circumferential axis in Direction of the longitudinal axis is provided elastically stretchable wall area.
  • the actuator is designed either as a bimetal expansion rod, bimetal strip or as a hydraulic actuator with a cylinder containing a chamber, which contains a liquid that expands when heated and acts on a membrane or piston.
  • the low-pressure hot water preparation device shown as an exemplary embodiment in the drawing is designed as a hot water tank for under-table operation.
  • This device has an outer jacket 1, a cold water connection piece 2 with inlet pipe 3 and inlet openings 3 ⁇ , a hot water connection piece 4 and a water tank 5 with bottom 6.
  • the water tank 5 is surrounded on all sides by heat insulation 7.7 7.
  • a heating element 8 is attached in a manner not shown.
  • the content of the water tank 5 is kept constant at a preselected temperature by a temperature controller 9.
  • Below the water tank bottom 6 there is a flange space 10 for receiving the electrical connection parts (not shown) and a volume-adjustable bellows 11.
  • Fig. 1 now shows an embodiment in which in the water tank bottom 6 one end of a pipe bend 12 is connected, while the other end is inserted from below into the bellows 11, which is exactly centrally below the inlet pipe 3 ending in the bottom region of the water tank 5 and communicates with the contents of the water tank 5.
  • a plunger 13 with a piston 13 ⁇ and a compression spring 14 is attached and axially movably inserted into the lower end of the inlet pipe 3 with the aid of a watertight bushing 15.
  • molded-in limiting cams 16 are used in the interior of the inlet pipe 3.
  • the dynamic pressure then present in the inlet pipe 3 is used to move the piston 13 ⁇ with its plunger 13 downward.
  • the bellows 11 is compressed, and thus its volume is reduced.
  • the contents of the bellows 11 are pressed into the water tank 5 via the pipe bend 12 before cold water flows into this. Only in its lower position does the piston 13 ⁇ open the inlet openings 3 ⁇ in the inlet pipe 3, so that fresh water can get into the water tank 5 or flow.
  • the plunger 13 is brought back into the rest position shown with the aid of its compression spring 14.
  • the bellows 11 is pulled up at the same time.
  • the winding process is additionally supported by the static device water pressure.
  • the bellows 11 extracts from the water tank 5 such a quantity of water which arises again as expansion water when the contents of the water tank are heated. This means that the water level present in the water tank 5 is lowered by the amount which arises again when the contents of the water tank are heated up, without expansion water now escaping through the hot water connecting piece 4.
  • the holding volume of the bellows 11 is also dimensioned such that it can hold at least four percent of the contents of the water container 5 in the opened state.
  • the enlargement or extension and reduction of the bellows volume is carried out by a spirally wound bimetallic strip 17 firmly anchored to the water tank bottom 6, which has a pull rod 18 attached to its free end 17 and to the bottom 11 'of the bellows 11 pulls it up or squeezes it.
  • the bellows 11 is in turn connected to the contents of the water container 5 via a short pipe socket 19.
  • Bellows 11, pipe socket 19, tie rod 18, bimetallic strip 17 and heating element 8 form a unit and can be introduced into the water tank 5 from below and are easily replaceable and flanged to the water tank bottom 6.
  • the bimetallic strip 17 In the cold state of the lower water tank content, usually at the end of a dispensing process, the bimetallic strip 17 is deflected upwards and the bellows 11 has its smallest volume. During the heating process for the content of the water container 5, the bimetallic strip 17 deflects more and more downward and thereby continuously increases the bellows volume. In this way, an increase in the water level in the water tank 5 is avoided and thus an escape of expansion water is prevented. To optimize the deflection of the bimetal strip 17 during the heating process, the bimetal strip 17 receives heat recovery, not shown, via thermal bridges or the like from the heating element 8.
  • FIG. 3 shows an embodiment in which the inlet pipe 3, as a length-adjustable quick reaction member, pulls the bellows 11 or compresses it again via a lever mechanism 20.
  • the inlet pipe 3 is designed to be extended downwards through a watertight bushing 15 'in the water tank bottom 6.
  • the lever mechanism 20 is arranged. With each tap operation, the inlet pipe 3 is cooled by inflowing water, contracts and reduces the volume of the bellows 11 with the aid of the lever mechanism 21 (lever arm) coupled to its extension 21 ⁇ .
  • the inlet pipe expands 3 again, which in turn causes the bellows 11 to contract and thus to increase its receiving volume.
  • a heat coupling, not shown, between heating element 8 and inlet pipe 3 supports this process.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Cookers (AREA)
  • Details Of Fluid Heaters (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Devices For Dispensing Beverages (AREA)
EP19870119183 1987-01-10 1987-12-24 Einrichtung zum Volumenausgleich für einen Warmwasserbereiter Expired - Lifetime EP0276475B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87119183T ATE67582T1 (de) 1987-01-10 1987-12-24 Einrichtung zum volumenausgleich fuer einen warmwasserbereiter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873700598 DE3700598A1 (de) 1987-01-10 1987-01-10 Einrichtung zum volumenausgleich fuer einen warmwasserbereiter
DE3700598 1987-01-10

Publications (3)

Publication Number Publication Date
EP0276475A2 EP0276475A2 (de) 1988-08-03
EP0276475A3 EP0276475A3 (en) 1988-11-02
EP0276475B1 true EP0276475B1 (de) 1991-09-18

Family

ID=6318669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870119183 Expired - Lifetime EP0276475B1 (de) 1987-01-10 1987-12-24 Einrichtung zum Volumenausgleich für einen Warmwasserbereiter

Country Status (9)

Country Link
US (1) US4906817A (ja)
EP (1) EP0276475B1 (ja)
JP (1) JPS63180044A (ja)
AT (1) ATE67582T1 (ja)
DE (2) DE3700598A1 (ja)
ES (1) ES2026892T3 (ja)
GB (1) GB2200734B (ja)
GR (1) GR3003340T3 (ja)
HK (1) HK36891A (ja)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3728919A1 (de) * 1987-08-29 1989-03-09 Forbach Gmbh Offener warmwasserbereiter
AT397855B (de) * 1988-11-10 1994-07-25 Vaillant Gmbh Beheizbarer warmwasserspeicher
AT398831B (de) * 1990-12-10 1995-02-27 Vaillant Gmbh Heizeinrichtung mit einem primärwärmetauscher
WO1993015367A1 (en) * 1992-01-29 1993-08-05 Sheringham Investments Pty. Ltd. Continuous water heater
DE9201768U1 (de) * 1992-02-12 1992-04-02 Viessmann Werke GmbH & Co, 3559 Allendorf Brauchwasserspeicher
DE19649637A1 (de) * 1996-12-02 1998-06-04 Ideal Standard Niederdruckspeicher
DE10033280A1 (de) * 2000-07-07 2002-01-17 Andre Laukner Vorrichtung zur Aufnahme der Wasserausdehnung
US6920844B1 (en) 2004-04-07 2005-07-26 Sioux Chief Manufacturing Co., Inc. Thermal expansion arrester for water heaters
US7410714B1 (en) * 2004-07-15 2008-08-12 The United States Of America As Represented By The Administration Of Nasa Unitized regenerative fuel cell system
US9113750B2 (en) 2004-10-08 2015-08-25 Bunn-O-Matic Corporation System for producing beverages
US7798053B2 (en) * 2005-12-21 2010-09-21 Bunn-O-Matic Corporation System for producing beverages
US8472794B2 (en) * 2009-01-16 2013-06-25 Lori PERRY Apparatus with expansion chamber providing large heat distribution
ITMO20120061A1 (it) * 2012-03-12 2013-09-13 T P A Impex Spa Una caldaia per elettrodomestici e per impianti di riscaldamento di acqua per uso domestico ed industriale con produzione di vapore
CN104110843B (zh) * 2013-04-18 2017-02-22 广东美的暖通设备有限公司 水箱及具有该水箱的热水器
CN107860125A (zh) * 2017-12-08 2018-03-30 厦门阿玛苏电子卫浴有限公司 一种开水器
CN110044191B (zh) * 2019-05-06 2024-03-22 广东纽恩泰新能源科技股份有限公司 具有用户配置能力的自适应调节高效节能变储能容水箱
CN113932442B (zh) * 2021-10-29 2022-04-19 慈溪市格仕尼电器有限公司 一种厨房用小型电热水器

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869760A (en) * 1959-01-20 Hot water dispenser
DE516796C (de) * 1931-01-28 Auergesellschaft Gmbh UEberlaufschutz fuer Warmwasserbehaelter
GB349834A (en) * 1929-08-14 1931-06-04 Maurice Charles Improved means for compensating for changes in liquid volume due to temperature
DE610249C (de) * 1932-07-19 1935-03-06 Theodor Stiebel Dipl Ing Dr Offenes UEberlaufrohr fuer elektrisch beheizte Heisswasserspeicher
US2110251A (en) * 1935-09-23 1938-03-08 Silex Co Water heater
US2598968A (en) * 1947-10-24 1952-06-03 Olive N Boosey Hydrant
GB662739A (en) * 1948-07-19 1951-12-12 Henry Norrish Maunder Improvements in or relating to water heaters
GB719140A (en) * 1951-10-09 1954-11-24 Parnall Yate Ltd Improvements in or relating to storage water heaters
GB790950A (en) * 1955-12-08 1958-02-19 William Frederick Tipping Improvements in or relating to water heaters
US2819376A (en) * 1956-02-14 1958-01-07 Cory Corp Hot water dispenser
US2894109A (en) * 1956-08-22 1959-07-07 Kendon Developments Ltd Commercial water heater
US2870318A (en) * 1958-01-08 1959-01-20 Cory Corp Hot water heater
DE1404210A1 (de) * 1959-07-16 1968-10-24 Cory Corp Vorrichtung zum Ausgeben von Fluessigkeiten
GB897785A (en) * 1959-07-29 1962-05-30 Lucien Grillet Improvements in or relating to space heating systems
GB972091A (en) * 1959-11-11 1964-10-07 Pressurisation Ltd A new or improved control tank for use with closed circuit fluid systems
GB969953A (en) * 1959-11-11 1964-09-16 Pressurisation Ltd Improvements in or relating to heating systems employing circulating liquids under pressure
DE1179278B (de) * 1960-08-31 1964-10-08 Standard Elektrik Lorenz Ag Verfahren zur Herstellung von Leitungs-wegen nach Art der sogenannten gedruckten Schaltungen
US3080119A (en) * 1961-01-23 1963-03-05 Gen Fittings Company Expansion tank and air removal unit
DE1245084B (de) * 1961-03-27 1967-07-20 Franz Fuehrer Dr Ing Vorrichtung zur Verhinderung des Entweichens von Ausdehnungswasser aus einem elektrisch beheizten Heisswasserspeicher
DE1454680A1 (de) * 1962-02-22 1969-02-20 Forbach Gmbh & Co Kg Heisswasserspeicher
US3202321A (en) * 1963-10-17 1965-08-24 Delta T Inc Hot water heating and dispensing apparatus
US3381110A (en) * 1965-05-28 1968-04-30 Fischer Associates Inc Hot water heater
US3581057A (en) * 1969-10-08 1971-05-25 Hobart Mfg Co Hot water heater
GB1332171A (en) * 1971-05-28 1973-10-03 Vokes Ltd Constant pressure expansion chamber
FR2232693A1 (ja) * 1973-06-07 1975-01-03 Ducellier & Cie
GB1437386A (en) * 1973-10-23 1976-05-26 Carlson R D H Central heating plant
US3905518A (en) * 1974-06-19 1975-09-16 Emerson Electric Co Remote dispensing head with a concealed expansion chamber for heated fluid dispensing systems
US3891124A (en) * 1974-08-16 1975-06-24 Emerson Electric Co Means for storing and dispensing heated liquid with expansion chamber module and system therefor
DE2658720C3 (de) * 1976-12-24 1982-01-28 Deutsche Forschungs- und Versuchsanstalt für Luft- und Raumfahrt e.V., 5300 Bonn Latentwärmespeicher zur Aufnahme eines wärmespeichernden Mediums
DE2828902A1 (de) * 1978-06-30 1980-01-03 Esser Kg Klaus Waermespeicher
US4263498A (en) * 1979-02-26 1981-04-21 Hobart Corporation Expansion chamber arrangement for water heating and dispensing device
DE3040450C2 (de) * 1980-10-27 1987-10-01 Horst Dr.-Ing. 8000 München Pichert Vorrichtung zum Volumenausgleich für einen Warmwasserbereiter
US4391459A (en) * 1981-02-09 1983-07-05 Emerson Electric Company Instant hot water dispenser
US4424767A (en) * 1981-02-09 1984-01-10 Emerson Electric Company Instant hot water heater

Also Published As

Publication number Publication date
JPS63180044A (ja) 1988-07-25
DE3700598A1 (de) 1988-07-21
GB2200734B (en) 1991-01-02
US4906817A (en) 1990-03-06
ES2026892T3 (es) 1992-05-16
GB2200734A (en) 1988-08-10
ATE67582T1 (de) 1991-10-15
GB8800495D0 (en) 1988-02-10
GR3003340T3 (en) 1993-02-17
EP0276475A3 (en) 1988-11-02
EP0276475A2 (de) 1988-08-03
HK36891A (en) 1991-05-17
DE3773173D1 (de) 1991-10-24

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