AT390669B - Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water - Google Patents

Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water Download PDF

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Publication number
AT390669B
AT390669B AT0321587A AT321587A AT390669B AT 390669 B AT390669 B AT 390669B AT 0321587 A AT0321587 A AT 0321587A AT 321587 A AT321587 A AT 321587A AT 390669 B AT390669 B AT 390669B
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AT
Austria
Prior art keywords
storage
expansion vessel
hot water
space
tank according
Prior art date
Application number
AT0321587A
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German (de)
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ATA321587A (en
Original Assignee
Vaillant Gmbh
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 filed Critical Vaillant Gmbh
Priority to AT0321587A priority Critical patent/AT390669B/en
Priority to DE3836523A priority patent/DE3836523A1/en
Priority to AU26040/88A priority patent/AU2604088A/en
Priority to EP88909284A priority patent/EP0338056B1/en
Priority to DE88909284T priority patent/DE3887504D1/en
Priority to AT88909284T priority patent/ATE100781T1/en
Priority to PCT/DE1988/000661 priority patent/WO1989003807A1/en
Publication of ATA321587A publication Critical patent/ATA321587A/en
Application granted granted Critical
Publication of AT390669B publication Critical patent/AT390669B/en

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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
    • F24D17/0073—Arrangements for preventing the occurrence or proliferation of microorganisms in the water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/06—Aerobic processes using submerged filters
    • 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
    • F24H1/50—Water heaters for central heating incorporating heaters for domestic water incorporating domestic water tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

A hot-water storage tank is equipped with an expansion vessel 2, delimited by a diaphragm 4, for compensating thermally induced changes in volume of the stored water. In order to prevent a flow-free dead space, in which bacteria may collect, from being produced in the region of this expansion vessel 2, the expansion vessel 2 is delimited by the diaphragm 4 from a space 5 containing heatable storage water. This space may be the storage space 5 itself or may be formed by a separate container connected to the expansion vessel 2 and to the storage space 5. In the latter case, this container may be separately heatable or have heatable storage water flowing through it via an inflow and an outflow. <IMAGE>

Description

Nr. 390 669No. 390 669

Die Erfindung betrifft einen Warmwasserspeicher mit einer aus einem von einer Membran begrenzten Ausdehnungsgefäß bestehenden Vorrichtung zum Ausgleich temperaturbedingter Volumsänderungen des gereicherten Wassers.The invention relates to a hot water tank with a device consisting of an expansion vessel delimited by a membrane to compensate for temperature-related changes in volume of the enriched water.

Bei Brauchwasseranlagen ergibt sich die Gefahr des Auftretens von Bakterien, insbesondere der die sogenannte Legionärskrankheit verursachenden Bakterien (legionella pneumophila).In industrial water systems, there is a risk of bacteria, in particular the bacteria causing the so-called legionnaires' disease (legionella pneumophila).

Aufgabe der Erfindung ist es, bei einem Warmwasserspeicher der obenbezeichneten Gattung Strömungstoträume, die durch eine Anordnung des Ausdehnungsgefäßes in der Warmwasserleitung entstehen können und eine Vermehrung solcher Bakterien begünstigen, weitestgehend zu vermeiden.The object of the invention is to largely avoid flow dead spaces in a hot water storage tank of the type described above, which can arise from an arrangement of the expansion vessel in the hot water pipe and favor the proliferation of such bacteria.

Erfindungsgemäß ist vorgesehen, daß bei einem Warmwasserspeicher dieser Gattung das Ausdehnungsgefäß durch seine Membran gegenüber einem beheizbares Speicherwasser enthaltenden Raum begrenzt istAccording to the invention it is provided that in a hot water storage tank of this type the expansion vessel is limited by its membrane compared to a room containing heatable storage water

Dadurch ist gewährleistet, daß bei einer zumindest zeitweilig einsetzenden Erhitzung des Brauchwassers auf Temperaturen von etwa 70 bis 80° einer bakteriellen Verseuchung des Brauchwassers vorgebeugt werden kann.This ensures that bacterial contamination of the process water can be prevented if the process water is heated at least temporarily to temperatures of approximately 70 to 80 °.

Der Erfindungsgedanke ist in der Praxis auf verschiedenerlei Arten zu verwirklichen.The idea of the invention can be realized in various ways in practice.

Beispielsweise kann das Ausdehnungsgefäß weitgehend in den Speicher selbst einbezogen werden, wobei dessen dem Ausdehnungsgefäß benachbarter Raum vom Speicherraum selbst gebildet sein kann. Zu diesem Zweck kann das Ausdehnungsgefäß der Wandung des Speichers beispielsweise seitlich angeschlossen sein, es kann aber auch den Speicherboden bilden, wodurch sich eine aufwendige Anfertigung von Sonderbestandteilen der Speicherwandung erübrigt.For example, the expansion vessel can be largely incorporated into the memory itself, wherein the space adjacent to the expansion vessel can be formed by the storage space itself. For this purpose, the expansion vessel of the wall of the storage device can be connected laterally, for example, but it can also form the storage floor, which eliminates the need for complex manufacturing of special components of the storage wall.

Ferner besteht die Möglichkeit, das Ausdehnungsgefäß als einen in den Speicherraum einragenden, vorzugsweise an der Decke der Speicherwandung befestigten Tauchkörper auszubilden. Auch bei dieser Ausführungsform bedarf es keiner Sonderanfertigung von Bestandteilen der Speicherwandung.Furthermore, there is the possibility of designing the expansion vessel as an immersion body which projects into the storage space and is preferably attached to the ceiling of the storage wall. In this embodiment, too, no special manufacture of components of the storage wall is required.

Man kann im Rahmen der Erfindung das eingangs geschilderte Problem auch dadurch einer Lösung zuführen, daß man den Speicherwasser enthaltenden Raum durch einen gesonderten, dem Ausdehnungsgefäß benachbarten, an den Speicherraum angeschlossenen Behälter bildet. Ein solcher mit beheizbarem Speicherwasser füllbarer Behälter kann dann gegebenenfalls zur Erzielung keimtötender Temperaturen gesondert beheizbar sein, er kann aber auch einfach von dem zu erhitzenden Speicherwasser durchströmbar sein.Within the scope of the invention, the problem described at the outset can also be solved by forming the space containing the storage water through a separate container which is adjacent to the expansion vessel and is connected to the storage space. Such a container which can be filled with heatable storage water can then optionally be heated separately in order to achieve germicidal temperatures, but it can also be easily flowed through by the storage water to be heated.

Ausführungsbeispiele des Erfindungsgegenstandes sind in den Zeichnungen schematisch veranschaulicht. Im einzelnen zeigen:Exemplary embodiments of the subject matter of the invention are illustrated schematically in the drawings. In detail show:

Fig. 1 bis 3 verschiedene Ausführungsformen von Speichern, denenzufolge Ausdehnungsgefäße in den Speicher selbst einbezogen sind, in Vertikalschnitten,1 to 3 different embodiments of stores, according to which expansion vessels are included in the store itself, in vertical sections,

Fig. 4 und 5 Ausführungsformen, bei denen der Dehnungsausgleich in gesonderten Behältern erfolgt4 and 5 embodiments in which the expansion compensation takes place in separate containers

Gemäß Fig. 1 ist der Wandung (1) eines Speichers ein Ausdehnungsgefäß (2) mit einem Ringflansch (3) angeschlossen, der eine Membran (4) hält. Der Speicherraum (5), in den eine Kaltwasserzufuhrleitung (6) mündet und von dem eine Warmwasserzapfleitung (7) ausgeht wird von einer Heizwendel (8) beheizt. Die Membran (4) begrenzt demnach den vom Ausdehnungsgefäß (2) umschlossenen Raum (9) unmittelbar gegenüber dem Speicherwasser im Speicherraum (5) und es ergibt sich dabei nirgends ein Totraum, innerhalb dessen sich Bakterien sammeln und auf Dauer halten könnten.1, the wall (1) of a reservoir is connected to an expansion vessel (2) with an annular flange (3) which holds a membrane (4). The storage space (5), into which a cold water supply line (6) opens and from which a hot water supply line (7) extends is heated by a heating coil (8). The membrane (4) therefore delimits the space (9) enclosed by the expansion vessel (2) directly opposite the storage water in the storage space (5) and there is nowhere a dead space within which bacteria can collect and keep permanently.

Gemäß Fig. 2 wird der Boden der Speicherwandung (1) vom Ausdehnungsgefäß (2) verkörpert.2, the bottom of the storage wall (1) is embodied by the expansion vessel (2).

Gemäß Fig. 3 schließlich ist das Ausdehnungsgefäß (2) von einem hohlen Tauchkörper gebildet, der an der Decke der Speicherwandung (1) befestigt ist und mit seinem unteren Rand die Membran (4) hält. Gemäß der Ausführungsformen nach den Fig. 4 und 5 ist das Ausdehnungsgefäß (2) einem gesonderten Behälter (10) angeschlossen und hält mit diesem gemeinsam mittels eines Ringflansches (3) die den Speicherwasser enthaltenden Raum (11) begrenzende Membran (4).3, finally, the expansion vessel (2) is formed by a hollow immersion body, which is attached to the ceiling of the storage wall (1) and holds the membrane (4) with its lower edge. According to the embodiments according to FIGS. 4 and 5, the expansion vessel (2) is connected to a separate container (10) and holds together with this by means of an annular flange (3) the membrane (4) delimiting the space (11) containing the storage water.

Gemäß Fig. 4 kann dieser Raum (11) durch eine Heizwendel (12) gesondert beheizbar sein, um fallweise oder dauernd eine Entkeimung durchführen zu können. Fakultativ kann dieser Raum (11) auch durch eine außerhalb des Behälters (10) befindliche Beheizungsvorrichtung (13) beheizbar sein. Dieser Raum (11) steht über eine Verbindungsleitung (14) mit dem Speicherraum (5) in Verbindung.4, this space (11) can be heated separately by a heating coil (12) in order to be able to carry out disinfection occasionally or continuously. Optionally, this space (11) can also be heated by a heating device (13) located outside the container (10). This space (11) is connected to the storage space (5) via a connecting line (14).

Gemäß Fig. 5 schließlich wird der Raum (11) des Behälters (10) vom beheizten Speicherwasser über einen Zulauf (15) und einen Ablauf (16) durchströmt, wobei darauf zu achten ist, daß die Bewegungen der Membran (4) diesen Durchstrom nicht behindern dürfen. -2-5 finally, the space (11) of the container (10) is flowed through by the heated storage water via an inlet (15) and an outlet (16), care being taken that the movements of the membrane (4) do not flow through this may hinder. -2-

Claims (9)

Nr. 390 669 PATENTANSPRÜCHE 1. Warmwasserspeicher mit einer aus einem von einer Membran begrenzten Ausdehnungsgefäß bestehenden Vorrichtung zum Ausgleich temperaturbedingter Volumsänderungen des gespeicherten Wassers, dadurch gekennzeichnet, daß das Ausdehnungsgefäß (2) durch diese Membran (4) gegenüber einem beheizbares Speicherwasser enthaltenden Raum (5 bzw. 11) begrenzt ist.No. 390 669 PATENT CLAIMS 1. Hot water storage tank with a device consisting of an expansion vessel delimited by a membrane to compensate for temperature-related changes in volume of the stored water, characterized in that the expansion vessel (2) through this membrane (4) compared to a room (5 or 11) is limited. 2. Warmwasserspeicher nach Anspruch 1, dadurch gekennzeichnet, daß der beheizbares Speicherwasser enthaltende Raum vom Speicherraum (5) selbst gebildet ist (Fig. 1 bis 3).2. Hot water tank according to claim 1, characterized in that the heatable storage water-containing space is formed by the storage space (5) itself (Fig. 1 to 3). 3. Warmwasserspeicher nach Anspruch 2, dadurch gekennzeichnet, daß das Ausdehnungsgefäß (2) der Wandung (1) des Speichers seitlich angeschlossen ist (Fig. 1).3. Hot water tank according to claim 2, characterized in that the expansion vessel (2) of the wall (1) of the memory is connected laterally (Fig. 1). 4. Warmwasserspeicher nach Anspruch 2, dadurch gekennzeichnet, daß das Ausdehnungsgefäß (2) den Boden der Speicherwandung (1) bildet (Fig. 2).4. Hot water tank according to claim 2, characterized in that the expansion vessel (2) forms the bottom of the storage wall (1) (Fig. 2). 5. Warmwasserspeicher nach Anspruch 3 oder 4, gekennzeichnet durch eine die Membran (4) halternde Ringflansch-Verbindung (3) zwischen dem Ausdehnungsgefäß (2) und der Behälterwandung (1) (Fig. 1,2).5. Hot water tank according to claim 3 or 4, characterized by a membrane (4) holding ring flange connection (3) between the expansion vessel (2) and the container wall (1) (Fig. 1,2). 6. Warmwasserspeicher nach Anspruch 2, dadurch gekennzeichnet, daß das Ausdehnungsgefäß (2) als ein in den Speicherraum (5) ragender, vorzugsweise an der Decke der Speicherwandung (1) befestigter, hohler Tauchkörper ausgebildet ist, dessen Rand die Membran (4) trägt (Fig. 3).6. Hot water tank according to claim 2, characterized in that the expansion vessel (2) as a in the storage space (5) projecting, preferably on the ceiling of the storage wall (1) attached, hollow immersion body is formed, the edge of which supports the membrane (4) (Fig. 3). 7. Warmwasserspeicher nach Anspruch 1, dadurch gekennzeichnet, daß der Speicherwasser enthaltende Raum (11) von einem gesonderten, mit dem Ausdehnungsgefäß (2) verbundenen und an den Speicherraum (5) angeschlossenen Behälter (10) gebildet ist (Fig. 4,5).7. Hot water tank according to claim 1, characterized in that the storage water-containing space (11) is formed by a separate, with the expansion vessel (2) and connected to the storage space (5) connected container (10) (Fig. 4,5) . 8. Warmwasserspeicher nach Anspruch 7, dadurch gekennzeichnet, daß dieser Behälter (10) mittels einer eigenen Heizvorrichtung (12 bzw. 13) gesondert beheizbar ist (Fig. 4).8. Hot water tank according to claim 7, characterized in that this container (10) can be heated separately by means of its own heating device (12 or 13) (Fig. 4). 9. Warmwasserspeicher nach Anspruch 7, dadurch gekennzeichnet, daß dieser Behälter (10) über einen Zulauf (15) und einen Ablauf (16) vom beheizbaren Speicherwasser durchströmt ist (Fig. 5). Hiezu 1 Blatt Zeichnung -3-9. Hot water tank according to claim 7, characterized in that this container (10) through an inlet (15) and an outlet (16) is flowed through by the heatable storage water (Fig. 5). For this 1 sheet drawing -3-
AT0321587A 1987-10-23 1987-12-07 Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water AT390669B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
AT0321587A AT390669B (en) 1987-12-07 1987-12-07 Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water
DE3836523A DE3836523A1 (en) 1987-10-23 1988-10-24 METHOD AND DEVICES FOR PREVENTING THE APPLICATION OR THE REPRODUCTION OF SMALL LIVING BEINGS IN HOT WATER
AU26040/88A AU2604088A (en) 1987-10-23 1988-10-24 Prevention of the occurence or proliferation of microorganisms in water for industrial use
EP88909284A EP0338056B1 (en) 1987-10-23 1988-10-24 Apparatus for prevention of the occurence or proliferation of microorganisms in water for industrial use
DE88909284T DE3887504D1 (en) 1987-10-23 1988-10-24 DEVICE FOR PREVENTING THE APPLICATION OR THE REPRODUCTION OF SMALL LIVING BEINGS IN HOT WATER.
AT88909284T ATE100781T1 (en) 1987-10-23 1988-10-24 DEVICE TO PREVENT THE OCCURANCE OR. THE REPRODUCTION OF MICROLIFE IN PROCESSED WATER.
PCT/DE1988/000661 WO1989003807A1 (en) 1987-10-23 1988-10-24 Prevention of the occurence or proliferation of microorganisms in water for industrial use

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0321587A AT390669B (en) 1987-12-07 1987-12-07 Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water

Publications (2)

Publication Number Publication Date
ATA321587A ATA321587A (en) 1989-11-15
AT390669B true AT390669B (en) 1990-06-11

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AT0321587A AT390669B (en) 1987-10-23 1987-12-07 Hot-water storage tank with a device for compensating thermally induced changes in volume of the stored water

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2555425A (en) * 2016-10-26 2018-05-02 Vexo International Uk Ltd Expansion vessel for a heating or cooling system
GB2600179A (en) * 2020-10-16 2022-04-27 Xiamen Aquasu Electric Shower Co Ltd Water heater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724416A1 (en) * 1977-05-28 1978-12-07 Battelle Institut E V Two compartment water tank for solar heating system - is divided by fixed partition or flexible membrane, sealed all round
DE3115988A1 (en) * 1981-04-15 1983-01-05 Engelhardt, Klaus Hot-water storage tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2724416A1 (en) * 1977-05-28 1978-12-07 Battelle Institut E V Two compartment water tank for solar heating system - is divided by fixed partition or flexible membrane, sealed all round
DE3115988A1 (en) * 1981-04-15 1983-01-05 Engelhardt, Klaus Hot-water storage tank

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2555425A (en) * 2016-10-26 2018-05-02 Vexo International Uk Ltd Expansion vessel for a heating or cooling system
WO2018078341A1 (en) * 2016-10-26 2018-05-03 Vexo International (Uk) Limited Expansion vessel for a heating or cooling system
GB2555425B (en) * 2016-10-26 2019-06-26 Vexo International Uk Ltd Expansion vessel for a heating or cooling system
GB2600179A (en) * 2020-10-16 2022-04-27 Xiamen Aquasu Electric Shower Co Ltd Water heater
GB2600179B (en) * 2020-10-16 2023-02-08 Xiamen Aquasu Electric Shower Co Ltd Water heater with an expansion vessel connected to the outlet

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Publication number Publication date
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