AT396175B - PROTECTIVE ANODE PROJECTED INTO THE WALL OF A HOT WATER TANK - Google Patents

PROTECTIVE ANODE PROJECTED INTO THE WALL OF A HOT WATER TANK Download PDF

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Publication number
AT396175B
AT396175B AT0326087A AT326087A AT396175B AT 396175 B AT396175 B AT 396175B AT 0326087 A AT0326087 A AT 0326087A AT 326087 A AT326087 A AT 326087A AT 396175 B AT396175 B AT 396175B
Authority
AT
Austria
Prior art keywords
anode
measuring
container
protective
monitoring element
Prior art date
Application number
AT0326087A
Other languages
German (de)
Other versions
ATA326087A (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 AT0326087A priority Critical patent/AT396175B/en
Priority to DE8815140U priority patent/DE8815140U1/de
Publication of ATA326087A publication Critical patent/ATA326087A/en
Application granted granted Critical
Publication of AT396175B publication Critical patent/AT396175B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/40Arrangements for preventing corrosion
    • F24H9/45Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • F24H9/455Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23FNON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/10Electrodes characterised by the structure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/40Arrangements for preventing corrosion
    • F24H9/45Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means

Claims (4)

AT 396 175 B Die vorliegende Erfindung bezieht sich auf eine in der Wandung eines Warmwasserspeichers befestigte und in das Innere des Speicherbehälters ragende Schutzanode mit einer Ausnehmung zur Aufnahme mindestens eines Meß- und/oder Überwachungsorgans. Eine solche Schutzanode ist bekanntgeworden aus der US-PS 4 407 711, wobei die Ausnehmung im Anodenkörper zum Speicherbehälter hin offen ist und das Meß- und Überwachungsorgan aus Beschichtungen besteht, und zwar insbesondere aus chemisch inerten Substanzen. Warmwasserspeicher weisen in der Regel neben der eigentlichen Anode auch Tauchhülsen auf, in denen Temperaturfühler gelagert sind. Somit ist es Aufgabe der vorliegenden Erfindung, eine Anode, die bekanntlich der Verhinderung der Korrosion der Innenseite der Behälterwandung dient, zu einer originellen Doppelfunktion zu befähigen, die vorteilhafterweise eine wesentliche Vereinfachung der im Behälter unterzubringenden Einbauten und der im Deckelbereich angeordneten Armaturen zur Folge hat. Erfindungsgemäß ist daher vorgesehen, daß der hohle, vorzugsweise metallische Anodenkörper allseits gegen den Innenraum des Speicherbehälters geschlossen ist und das als Temperaturfühler ausgebildete Meß- und/oder Überwachungsorgan aufnimmt Diese Doppelfunktion der Schutzanode ermöglicht den Verzicht auf die Anordnung einer gesonderten, zur Aufnahme eines solchen Organs erforderlichen Tauchhülse sowie einer zu deren Befestigung dienenden Bohrung. Dadurch, daß zumindest ein zusätzlicher Muffenanschluß entfällt, verringern sich nicht nur die Herstellungskosten, sondern auch die Wärmeverluste während der Bereitstellung des Gebrauchswassers. Andererseits erfüllt eine solche Tauchhülse als Seele der ummantelten Anode voll die ihr in diesem Verband zukommende Funktion. In Ausgestaltung wird bei einer Schutzanode mit einer in einem Anodenkörper eingebetteten und von diesem Körper zumindest teilweise ummantelten Seele, vorzugsweise einer Stahlseele vorgeschlagen, daß diese Seele als hohle Tauchhülse ausgebildet ist und zumindest das als Temperaturfühler ausgebildete Meß- und/oder Überwachungsorgan aufnimmt Durch diese Ausbildung ist die Erfindung auch bei einer sogenannten Gliederanode anwendbar, die dann benutzt wird, wenn der über dem Speicher vorhandene Raum nicht ausreicht einen starren Anodenstab in den Speicher einzufügen. Um die Empfindlichkeit des Meß- und/oder Überwachungsorgans in diesem Falle nicht zu beeinträchtigen bzw. zu schmälern, empfiehlt es sich, das Organ in einem ummantelungsfreien Abschnitt der Seele anzuordnen. Enthält die Seele mehrere solcher Organe in Abständen voneinander, sind diese in einzelnen ummantelungsfreien Abständen anzuordnen, die den Anodenkörper in Einzelabschnitte gliedern. Bei vertikaler Anordnung der Anode können sich dann diese Organe in verschiedenen Eintauchtiefen im Behälterinneren befinden und die dort herrschenden Verhältnisse anzeigen. Ausführungsbeispiele des Erfindungsgegenstandes sind in den Zeichnungen veranschaulicht Im einzelnen zeigen Figur 1 einen Axialschnitt ein»- ersten Ausführungsform der Schutzanode und Figur 2 ebenfalls im Axialschnitt eine zweite Ausführungsform mit mehreren solchen Organen. Eine die Wandung (1) eines Speicherbehälters durchsetzende, in das Behälterinnere (3) ragende Schutzanode besteht gemäß Figur 1 aus einem mit einer Ausnehmung (5) versehenen zylindrischen, vorzugsweise metallischen Anodenkörper (4), der ein als Temperaturfühler (6) ausgebildetes Meß- und/oder Überwachungsorgan enthält das über eine Meß- und/oder Steuerleitung (7) mit einer außerhalb des Behälters befindlichen Anzeige-und/oder Steuervorrichtung verbunden sein kann. Der Kopf der Anode ist über ein Gewinde (2) in den Behälter eingeschraubt Figur 2 zeigt eine Ausführungsform, derzufolge der Anodenkörper (2) in Einzelabschnitte gegliedert ist die ummantelungsfreie Abschnitte einer Seele (8) freilassen, in der zwei Temperaturfühler (6) angeordnet sind, die sich infolgedessen bei vertikaler Anordnung der Anode in verschiedenen Tiefen des Behälterinneren (2) befinden. Das Meß- und/oder Überwachungsorgan (4) befindet sich im ummantelungsfreien Ende der Seele. PATENTANSPRÜCHE 1. In der Wandung eines Warmwasserspeichers befestigte und in das Innere des Speicherbehälters ragende Schutzanode mit einer Ausnehmung zur Aufnahme mindestens eines Meß- und/oder Uberwachungsorganes, dadurch gekennzeichnet, daß der hohle, vorzugsweise metallische Anodenkörper (3) allseits gegen den Innenraum des Speicherbehälters geschlossen ist und das als Temperaturfühler ausgebildete Meß- und/oder Überwachungsorgan (4) aufnimmt (Fig. 1). -2- AT 3% 175 BAT 396 175 B The present invention relates to a protective anode fastened in the wall of a hot water storage tank and projecting into the interior of the storage tank with a recess for receiving at least one measuring and / or monitoring element. Such a protective anode has become known from US Pat. No. 4,407,711, the recess in the anode body being open to the storage container and the measuring and monitoring element consisting of coatings, in particular of chemically inert substances. In addition to the actual anode, hot water storage tanks generally also have immersion sleeves in which temperature sensors are stored. It is therefore an object of the present invention to enable an anode, which is known to prevent corrosion of the inside of the container wall, to perform an original double function, which advantageously results in a significant simplification of the internals to be accommodated in the container and the fittings arranged in the lid area. According to the invention it is therefore provided that the hollow, preferably metallic anode body is closed on all sides against the interior of the storage container and accommodates the measuring and / or monitoring element designed as a temperature sensor.This double function of the protective anode makes it possible to dispense with the arrangement of a separate one for accommodating such an element necessary immersion sleeve as well as a hole used to fix it. The fact that at least one additional socket connection is omitted not only reduces the production costs, but also the heat losses during the provision of the service water. On the other hand, such an immersion sleeve, as the soul of the coated anode, fully fulfills its function in this association. In an embodiment, it is proposed in a protective anode with a core embedded in an anode body and at least partially encased by this body, preferably a steel core, that this core is designed as a hollow immersion sleeve and at least accommodates the measuring and / or monitoring element designed as a temperature sensor the invention is also applicable to a so-called link anode, which is used when the space above the store is insufficient to insert a rigid anode rod into the store. In order not to impair or reduce the sensitivity of the measuring and / or monitoring organ in this case, it is advisable to arrange the organ in a section of the soul that is free of sheaths. If the soul contains several such organs at a distance from one another, these are to be arranged in individual sheath-free intervals which divide the anode body into individual sections. If the anode is arranged vertically, these organs can then be located at different immersion depths in the interior of the container and indicate the conditions prevailing there. Exemplary embodiments of the subject matter of the invention are illustrated in the drawings. In detail, FIG. 1 shows an axial section through a first embodiment of the protective anode and FIG. 2 likewise shows an axial section through a second embodiment with several such organs. According to FIG. 1, a protective anode penetrating the wall (1) of a storage container and projecting into the container interior (3) consists of a cylindrical, preferably metallic anode body (4) provided with a recess (5), which has a measuring element designed as a temperature sensor (6). and / or monitoring element which can be connected via a measuring and / or control line (7) to a display and / or control device located outside the container. The head of the anode is screwed into the container by means of a thread (2). FIG. 2 shows an embodiment in which the anode body (2) is divided into individual sections, leaving the jacket-free sections of a core (8) free, in which two temperature sensors (6) are arranged which are consequently located at different depths of the interior of the container (2) when the anode is arranged vertically. The measuring and / or monitoring element (4) is located in the jacket-free end of the soul. PATENT CLAIMS 1. In the wall of a hot water storage tank and protruding into the interior of the storage tank protective anode with a recess for receiving at least one measuring and / or monitoring element, characterized in that the hollow, preferably metallic anode body (3) on all sides against the interior of the storage tank is closed and the measuring and / or monitoring element (4) designed as a temperature sensor (FIG. 1). -2- AT 3% 175 B 2. Schutzanode mit einer in einem Anodenkörper eingebetteten und von diesem Körper zumindest teilweise ummantelten Seele, vorzugsweise einer Stahlseele, dadurch gekennzeichnet, daß diese Seele (7) als hohle Tauchhülse ausgebildet ist und zumindest das als Temperaturfühler ausgebildete Meß- und/oder Überwachungsorgan (4) aufnimmt (Fig. 2). 52. Protective anode with a core embedded in an anode body and at least partially encased by this body, preferably a steel core, characterized in that this core (7) is designed as a hollow immersion sleeve and at least the measuring and / or monitoring element designed as a temperature sensor (4th ) records (Fig. 2). 5 3. Schutzanode nach Anspruch 2, dadurch gekennzeichnet, daß dieses Organ (4) in einem ummantelungs-fireien Abschnitt dm* Seele (7) angeordnet ist (Fig. 2).3. Protective anode according to claim 2, characterized in that this organ (4) is arranged in a sheathing-fireien section dm * soul (7) (Fig. 2). 4. Schutzanode nach Anspruch 3, dadurch gekennzeichnet, daß in der Seele (7) mehrere Organe (4) in Ab-10 ständen voneinander in einzelnen ummantelungsfreien Abschnitten angeordnet sind, die den Anodenkörper (8) in Einzelabschnitte gliedern. 15 Hiezu 1 Blatt Zeichnung -3-4. Protective anode according to claim 3, characterized in that in the soul (7) a plurality of organs (4) in Ab-10 from each other in individual sheath-free sections are arranged, which divide the anode body (8) into individual sections. 15 Add 1 sheet drawing -3-
AT0326087A 1987-12-11 1987-12-11 PROTECTIVE ANODE PROJECTED INTO THE WALL OF A HOT WATER TANK AT396175B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT0326087A AT396175B (en) 1987-12-11 1987-12-11 PROTECTIVE ANODE PROJECTED INTO THE WALL OF A HOT WATER TANK
DE8815140U DE8815140U1 (en) 1987-12-11 1988-12-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0326087A AT396175B (en) 1987-12-11 1987-12-11 PROTECTIVE ANODE PROJECTED INTO THE WALL OF A HOT WATER TANK

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ATA326087A ATA326087A (en) 1992-10-15
AT396175B true AT396175B (en) 1993-06-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220260282A1 (en) * 2019-07-12 2022-08-18 Rheem Australia Pty Limited Monitoring system for heated fluids

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740784B1 (en) * 1995-11-02 1998-01-02 Atlantic Soc Fr Dev Thermique DEVICE FOR THE CATHODIC PROTECTION OF A WATER HEATER TANK AND A WATER HEATER PROVIDED WITH SUCH A DEVICE

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407711A (en) * 1979-11-02 1983-10-04 Texas Instruments Incorporated Corrosion protection system for hot water tanks
US4409980A (en) * 1980-08-25 1983-10-18 Kuraray Company, Limited Gas sensor with pH-sensitive FET transducer
US4457821A (en) * 1983-01-17 1984-07-03 Pennwalt Corporation Cathodic protection apparatus for well coated metal vessels having a gross bare area
SU1130621A1 (en) * 1983-08-17 1984-12-23 Всесоюзный Научно-Исследовательский Институт По Защите Металлов От Коррозии Apparatus for protecting metal pipelines against corrosion
SU1135805A1 (en) * 1983-03-17 1985-01-23 Предприятие П/Я А-7629 Device for anode corrosion protection of metal vessel
DD220344A2 (en) * 1983-11-22 1985-03-27 Bergmann Borsig Veb CATHODIC PROTECTION SYSTEM FOR ROEHRENWAERMETAUSCHER, FOR EXAMPLE, FOR SURFACE CONDENSERS
DE3347046A1 (en) * 1983-12-24 1985-07-04 Gunter 3560 Biedenkopf Schuss Measuring probe for measuring the electrical potential above the base of liquid containers having cathodic corrosion protection
CA1199305A (en) * 1982-01-21 1986-01-14 C-I-L Inc. Anodic protection system and method
JPS61139689A (en) * 1984-12-10 1986-06-26 Matsushita Electric Ind Co Ltd Water heater
DD244571A1 (en) * 1985-12-20 1987-04-08 Meliorationsbau Halle Veb ANODE ARRANGEMENT FOR THE CATALYTIC INTERNAL CORROSION PROTECTION OF WATER-LEADING PIPES
US4689127A (en) * 1986-02-14 1987-08-25 Monsanto Company Control of anodic passivation systems
DD250339A1 (en) * 1986-06-26 1987-10-08 Freiberg Brennstoffinst DEVICE FOR MEASURING THE OBJECT / ELECTROLYTE POTENTIAL IN PIPES AND PANELS
EP0241440A2 (en) * 1986-02-19 1987-10-14 BAC Bergsöe Anti Corrosion AB Control system for electrochemical protection on submersible metal structures

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4407711A (en) * 1979-11-02 1983-10-04 Texas Instruments Incorporated Corrosion protection system for hot water tanks
US4409980A (en) * 1980-08-25 1983-10-18 Kuraray Company, Limited Gas sensor with pH-sensitive FET transducer
CA1199305A (en) * 1982-01-21 1986-01-14 C-I-L Inc. Anodic protection system and method
US4457821A (en) * 1983-01-17 1984-07-03 Pennwalt Corporation Cathodic protection apparatus for well coated metal vessels having a gross bare area
SU1135805A1 (en) * 1983-03-17 1985-01-23 Предприятие П/Я А-7629 Device for anode corrosion protection of metal vessel
SU1130621A1 (en) * 1983-08-17 1984-12-23 Всесоюзный Научно-Исследовательский Институт По Защите Металлов От Коррозии Apparatus for protecting metal pipelines against corrosion
DD220344A2 (en) * 1983-11-22 1985-03-27 Bergmann Borsig Veb CATHODIC PROTECTION SYSTEM FOR ROEHRENWAERMETAUSCHER, FOR EXAMPLE, FOR SURFACE CONDENSERS
DE3347046A1 (en) * 1983-12-24 1985-07-04 Gunter 3560 Biedenkopf Schuss Measuring probe for measuring the electrical potential above the base of liquid containers having cathodic corrosion protection
JPS61139689A (en) * 1984-12-10 1986-06-26 Matsushita Electric Ind Co Ltd Water heater
DD244571A1 (en) * 1985-12-20 1987-04-08 Meliorationsbau Halle Veb ANODE ARRANGEMENT FOR THE CATALYTIC INTERNAL CORROSION PROTECTION OF WATER-LEADING PIPES
US4689127A (en) * 1986-02-14 1987-08-25 Monsanto Company Control of anodic passivation systems
EP0241440A2 (en) * 1986-02-19 1987-10-14 BAC Bergsöe Anti Corrosion AB Control system for electrochemical protection on submersible metal structures
DD250339A1 (en) * 1986-06-26 1987-10-08 Freiberg Brennstoffinst DEVICE FOR MEASURING THE OBJECT / ELECTROLYTE POTENTIAL IN PIPES AND PANELS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220260282A1 (en) * 2019-07-12 2022-08-18 Rheem Australia Pty Limited Monitoring system for heated fluids

Also Published As

Publication number Publication date
DE8815140U1 (en) 1989-01-19
ATA326087A (en) 1992-10-15

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