EP0060289A1 - Anode reactive avec indicateur de consommation et capsule de plongee pour sonde thermique. - Google Patents

Anode reactive avec indicateur de consommation et capsule de plongee pour sonde thermique.

Info

Publication number
EP0060289A1
EP0060289A1 EP81902648A EP81902648A EP0060289A1 EP 0060289 A1 EP0060289 A1 EP 0060289A1 EP 81902648 A EP81902648 A EP 81902648A EP 81902648 A EP81902648 A EP 81902648A EP 0060289 A1 EP0060289 A1 EP 0060289A1
Authority
EP
European Patent Office
Prior art keywords
container
anode
contact
sleeve
screw
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
EP81902648A
Other languages
German (de)
English (en)
Other versions
EP0060289B1 (fr
Inventor
Werner Hossle
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.)
Sibylle Hoessle Te Berlijn Bondsrepubliek Duitsla
Original Assignee
Individual
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=6112412&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0060289(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT81902648T priority Critical patent/ATE18074T1/de
Publication of EP0060289A1 publication Critical patent/EP0060289A1/fr
Application granted granted Critical
Publication of EP0060289B1 publication Critical patent/EP0060289B1/fr
Expired legal-status Critical Current

Links

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
    • F24H9/00—Details
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23F—NON-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
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING 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
    • C23F—NON-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
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/22—Monitoring arrangements therefor
    • 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
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • 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
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means

Definitions

  • the invention relates to a sacrificial anode with consumption indicator for the cathodic protection against corrosion of static or operating pressure water tanks and water heaters as well as for tanks of other, also electrically conductive media and has the purpose of simplifying sacrificial anodes with consumption indicator with regard to manufacture and their interchangeability on a container and - under Elimination of a moving display element of the consumption display - to adapt the installation, maintenance and control conditions in the application area mentioned in a practical manner.
  • the invention also relates to the structural connection of the sacrificial anode according to the invention with an immersion sleeve for receiving a so-called ⁇ heat sensor '' in one piece, whereby the purpose is pursued, with a sacrificial anode and at least one heat sensor containers to be equipped with both control devices by means of a single screwing-in process o .
  • a sacrificial anode and at least one heat sensor containers to be equipped with both control devices by means of a single screwing-in process o .
  • the latter essentially consists of a pin-like organ which is longitudinally displaceable within a cavity of the anode and / or anode screw connection, which is moved towards the container when the anodic material is used up and when the container medium penetrates into the cavity and as Consumption signal from the front of the anode screw connection and thus emerges from the container.
  • Sacrificial anodes of this type have proven themselves in many areas of application for cathodic container corrosion protection and have found their way into practice in a wide area. They are able to actuate remotely installed display means by mechanical or electrical means by means of the pen-like organ.
  • Containers of the type mentioned generally have to be equipped with a heat control device, a heat sensor, if they contain heated media. Since such containers are usually also equipped with a sacrificial anode, manual interventions such as drilling, welding and the like are required at two points in the container with considerable expenditure of time and money. to make both devices in the container in their effective position.
  • a tube that is closed at one end, the immersion sleeve is let in through a hole in the container and welded to the hole with its open end face, which is then or the like at its insertion opening by a stopper.
  • the invention has for its object to eliminate the existing disadvantages in the use of the known sacrificial anodes with consumption indicator for water tanks and water heaters, in particular small and medium-sized tanks, and also to find a solution, while equipping both a tank with a sacrificial anode and a heat sensor To be able to mount control devices in one and the same container bore.
  • this is achieved with regard to the sacrificial anode in that, instead of a pin-like, longitudinally displaceable display element, two externally accessible, penetrating the anode screw connection, electrically insulated from one another and into an end-face cabbage space of the anode rod reaching into it, but at least spatially connected to it, contact parts are arranged, which make it possible to connect an optically and / or acoustically acting electrical signal device at their externally accessible ends, and which are spatially connected to their other, with the cavity of the anode rod . Ends act as an electrical switch as soon as the anode rod is used up, causing container water to penetrate into its cavity, wetting or surrounding the contact parts and thereby closing electrically.
  • the effectiveness of the switch bridge formed by container water depends on two criteria governed by the invention, which can be seen in the ratio of the electrical conductance of water: contact distance: test voltage and in the air column in the cabbage chamber, which counteracts the entry of water.
  • a relatively small contact distance will have to be selected, for example, with a relatively low test voltage, which must be in the low-current range according to safety regulations, whereas a higher test voltage, for example, in favor of greater mechanical robustness of the contact ends of the contact parts, allows a larger contact distance.
  • the electrical conductivity of the water can be reduced by inserting a tablet speaking agents, such as salt, z.3. NaCl, be increased between the contact ends and the anode rod, which dissolves when water enters it.
  • Another criterion is the fact that the compressibility of the air depends on the pressure size of the container medium and the compression limit.
  • the contact ends may therefore have a calculable greater distance from the potential water entry point, whereas when using them for containers with low pressure (mostly containers with static pressure) ) the contact ends must be brought close to the potential water entry point.
  • the last-mentioned embodiment provides the need to shorten the iron core present in the anode rod within the cavity in the anode rod, so that in the case of containers with higher pressures, sacrificial anodes with the greater distance from the potential viasser entry point are to be preferred.
  • the electrical signal device can be connected to the contact ends accessible externally on a container either by a permanently connected circuit of an optical and / or acoustic signal fed by the secondary side of a mains transformer, or by means of a manual device to be pressed against the contact ends of the sacrificial anode, if necessary, with its connection contacts, with an optical and / or acoustic signaling device and its own battery power source, which corresponds to the mode of operation of an ohmmeter or a continuity tester.
  • a manual device is particularly suitable for use by laypersons if a forced removal of contacts to counterpress the device is provided, which excludes contact removal errors, and because the meaning of the types of signals mentioned when they become effective cannot be misunderstood.
  • the contact parts of the sacrificial anode can be designed from the outset for one or the other type of consumption display.
  • the principle according to the invention while taking into account a releasable, self-sealing attachment of the anode rod to the anode screw connection, enables a very simple, economical and therefore inexpensive production of a copper anode suitable for water tanks and water heaters with a consumption display, which, in addition, lacks a movable display element of a high level
  • the sacrificial anode according to the invention also exists in its practical and basic training Consumption indicator in an anode screw connection produced by injection molding, preferably plastic injection molding, which is used to fasten the sacrificial anode in a container bore, in which the anode screw connection penetrates in the axial direction and protrudes from it at both ends - the one contact part, which is designed as a contact sleeve, is injected. as well as in a screw socket made exclusively of plastic, into which the other contact part designed as a contact pin is injected.
  • the contact sleeve has an external thread at its one end pointing towards the anode rod for the anode rod to be screwed on, and an internal thread at its other end for screwing in the screw bushing carrying the contact pin.
  • the contact pin protruding into the contact sleeve is electrically insulated from the contact sleeve by the plastic screw bushing and is separated from the contact sleeve in its exposed area within the contact sleeve by a cylindrical air gap.
  • the contact pin runs either to the end of the contact sleeve (at low container pressure) or (with uncut iron core of the anode rod and higher container pressure) so that there is a distance between the contact pin and the anode rod when the anode rod is screwed on.
  • the contact pin can carry a thread and a nut for fastening a cable lug on its short end projecting outwards, whereas a further cable lug for connecting the contact sleeve to the screw socket of the contact pin is attached to the contact sleeve.
  • the cable lugs are eliminated.
  • the end of the contact pin is flat or lenticular and the diameter of the contact sleeve is larger than the diameter of the screw socket, so that the other, approximately sleeve-shaped device contact can be placed over the screw socket until it comes into metallic contact with the contact sleeve.
  • An equally good need-based connection of the manual device is achieved with the same contact means if - as above - a cable lug between the screw socket and threaded sleeve for producing an electrically conductive connection between the metallic unit contact sleeve-anode rod and the container wall is screwed, since the sleeve-shaped device contact when pushing the manual device through this contact to the contact sleeve.
  • the anode rod has on its one end face, in a manner known per se, a sack-shaped threaded bore into which the free end of the iron core of the anode rod projects.
  • a circular groove is drawn on the anode end face around the blind bore, which carries an O-ring as a seal between the anode rod and the anode screw connection. Equipped in this way, both the anode rod and the anode screw connection can be easily and simply sealed and reliably sealed against pressurized container medium a new one can be replaced without having to unscrew the entire sacrificial anode from the container, and, if at the same time this can be connected to the cleaning of the container after loosening a front cover of the container.
  • the sealability between the anode rod and the anode screw connection offers the economically prime advantage that after the anode rod has been used up, the anode screw connection and signal or contact transmitter no longer need to be thrown away, as was previously the case.
  • the extremely inexpensive manufacturability of the anode screw connection in injection molding processes, preferably plastic injection molding, while at the same time injecting the contact parts results in a sacrificial anode product with consumption display of high efficiency in production, assembly and maintenance - which is also possible - compared to the previous production method through machining and manual assembly still against the destruction of material and production values acc. the "disposable method".
  • the contact sleeve is connected to the container via a metallic line, as mentioned above, whereby the line can be attached to the container by means of a permanent magnet.
  • This device required because of the plastic anode spoilage can be used for the control method specified in the "state of the art" by interposing an electrical measuring device, since for this purpose only the line on the contact sleeve needs to be detached, and provided that the progress of Consumption of anodic
  • the anode screw connection consisting of a molded part, preferably a plastic molded part with an injected contact sleeve, is a screw nut, preferably a hexagon nut, with a threaded attachment, so that a sacrificial anode according to the invention which is equipped in this way can be screwed into a threaded sleeve which is customary on containers.
  • the Anode consumption can be checked by a fixedly connected signal device or by a manual device.
  • the metallic connection between the anode rod or contact sleeve and the container is produced by a metallic line.
  • such containers are taken into account which are provided with a simple through hole of smaller diameter in the container wall for the attachment of a sacrificial anode.
  • the contact sleeve is injected - in a similar way to the anode screw connection - into a disk-shaped stop part made of plastic, the contact connection end of which, in this case having an external thread, is inserted from the inside of the container through the through hole of the container and from the outside with a threaded nut and more usual Locking and sealing washers are screwed on, whereby the screw socket with contact pin is already screwed to the contact sleeve if it has a smaller diameter than the contact sleeve, or is only screwed onto the contact sleeve after its attachment to the container by means of its contact sleeve if it has a larger diameter than the contact sleeve.
  • the anode consumption can be controlled by a fixedly connected signal device or by a manual device. Since the contact sleeve and thus the anode rod is already through the metallic fastener gungsverschraubung is connected to the container, there is no special line connection required in the other embodiments for producing such a metallic connection.
  • the copper anode according to the invention with consumption indicator is basically formed like the first embodiment, but with a larger outside diameter of the anode screw connection and with the addition that now, parallel to the contact sleeve in the body of the anode screw connection, at least one immersion sleeve for receiving a heat sensor has a larger end face is injected, which corresponds approximately to the length of the anode screw connection and is designed at its end facing the interior of the container for a subsequent, also tubular extension.
  • This configuration can preferably consist of an external thread at the end of the immersion sleeve and the like, or a ring-shaped separating notch.
  • an extension can also be achieved by means of a plug connection.
  • connection contacts one or the other type of control mentioned in the first and second embodiment can also be considered here, as can the metallic line connection between the contact sleeve or anode rod and Be container wall acc. the first embodiment.
  • a plastic end face cover of a container is the carrier of at least one injected one Immersion sleeve and / or the contact sleeve of the sacrificial anode, so that the immersion sleeve and sacrificial anode or only the sacrificial anode are installed in the container without a special contract when the end face cover is placed on the container and screwed to it.
  • one or the other type of control mentioned in the first and second embodiment is also considered here, as is the metallic line connection between the contact sleeve or anode rod and the metallic part of the container. the first embodiment.
  • the third embodiment saves the last-mentioned container processing.
  • the drawings sheet I and II the invention is shown for example. They show
  • Fig. 1 the sacrificial anode with consumption display in, its practical basic education and gem. its first embodiment, in a central longitudinal section and with connections for a stationary 24 volt signal device and a connection for the metallic line connection to the container,
  • Fig. 2 is a plan view of the visible on the outside of the container front of the sacrificial anode acc. Fig. 1
  • Fig. 3 shows the sacrificial anode with regard to the contact sleeve and pin as in Fig. 1, but in a third embodiment with at least one injected immersion sleeve as well as with connections for a manual control device and a connection for the metallic line connection to the container, e.g. via a permanent magnet,
  • Fig. 4 is a plan view of the visible on the outside of the container end of the sacrificial anode with two in the container versehrau injection molded immersion sleeves acc. Fig. 3, Fig. 5, the sacrificial anode with respect to the contact sleeve and pin as Fig. 1, but in its second embodiment with a disk-shaped stop part made of plastic in place of an anode screw connection, for fastening by means of a screw nut in a simple container bore and with this simultaneously occurring metallic connection of the contact sleeve or anode rod and container wall, as well as with connection of a 24 volt signal device,
  • Fig. 6 provided with a threaded bore, a protective cap and a sealing ring (O-ring), partially shown in the longitudinal section end of the gem. 1 on the contact sleeve screwable anode bar, in a single illustration,
  • Fig. 7 is a plan view of the visible on the outside of the container front of the sacrificial anode acc. Fig. 5,
  • Container - and Fig. 9 is a plan view in section
  • the four types of execution according to Fig. 1 to 5 and Fig. 7 to 9 can either with a fixed signaling device, such as be made up of the fixed cable lug connections 7 and 8, the display means 9 and a e.g. 24 volt power source (e.g. the secondary side of a mains transformer), acc. Fig. 1, 5 and 7 may be equipped or only with contact connections 4a and 6 or 8a in Fig. 3 for pushing a manual control device. 1, 3 and 8, container 3 and contact sleeve 6 must be connected to anode rod 10 by a metallic line 8a, the connection to a container 3 being able to exist in a permanent magnet.
  • a fixed signaling device such as be made up of the fixed cable lug connections 7 and 8
  • a e.g. 24 volt power source e.g. the secondary side of a mains transformer
  • the design of the contact parts in all types of construction consists of a contact sleeve 6 injected into the anode screw connection 1, 1 a or into the disk-shaped stop part 2 or into the front cover 17 of a container, and from a contact pin 4 which is axially penetrated by a screw bushing 5. supported and by screwing the screw sleeve 5 into a threaded bore of the Kentakthülse 6 while maintaining a cylindrical air gap to the inner wall of the contact sleeve 6 within the Contact sleeve 6 is arranged.
  • the injection-molded parts 1, 1 a, 2 and 17 are preferably made of plastic and the screw bushing 5 is basically made of plastic or another insulating material because of its required electrical insulating effect between contact pin 4 and contact sleeve 6.
  • Carriers 2 and 17 of the contact sleeve 6 the contact sleeve 6 is provided at its end facing the inside of the container with an external screw thread, and the end face of the anode rod 10 facing the contact sleeve 6 is provided with a corresponding threaded pocket hole and with a self-sealing so-called sealing ring located in a ring pocket around the threaded pocket hole. O-ring 12.
  • This end of the anode rod 10 is also equipped in a known manner with a protective cap 11 which prevents the premature use of the anodic material in this area.
  • the length of the threaded sleeve 6 depends on the length of the injection molded part 1, 1a, 2 or 17 carrying it.
  • the length of the signal pin 4 depends on the pressure size of the container medium in question and should run to the end of the contact sleeve 6 at a relatively low pressure , since the air column located in the common interior of the contact sleeve 6 and the blind bore of the anode rod 10 by means of the consumption of the anode rod 10 via its Blind hole penetrating container medium or water is compressed in this case correspondingly less than at higher pressure, but the penetrating water can only reach the two contact parts 4 and 6 by simultaneous air compression, an electrically conductive connection being established by the water bridge.
  • this distance is used to insert a salt that has been properly tableted, e.g. NaCl, if the water entering after the consumption of the anode rod 10 is to be increased in its electrical conductivity, which takes place after the salt has been dissolved in the water. Since the cylindrical air gap between the contact sleeve 6 and the contact pin 4 is in a certain ratio to the conductance of normal water at a certain test voltage, the Viasser bridge would not be sufficient as an electrical cable bridge if the voltage was reduced or a different one at the place of use with a corresponding air gap predetermined voltage is found.
  • a salt that has been properly tableted e.g. NaCl
  • the conductivity of the water can be increased as described above. at correct dimensioning of the two components mentioned, an admixture of this type is not necessary. However, it can also be provided in principle by inserting the tableted salt before screwing on the anode rod 10, if one wishes to be certain of multiple security for each case.
  • the embodiment acc. 3 and 4 is additionally equipped with at least one immersion sleeve 13 for receiving a heat sensor, for which purpose the anode screw connection 1a has a correspondingly larger diameter than the basically identical design according to FIG. Fig. 1, which, like the training acc. Fig. 3. can be screwed into a threaded sleeve of a container 3, as can be seen, for example, from FIG. 1.
  • the immersion sleeve 13 is shown in the drawing for the sake of better clarity in a length approximately corresponding to the anode screw connection la, also because this should be the length that is favorable for production for the injection process.
  • the immersion sleeve 13 In practical training there is a screw thread at the closed end of the immersion sleeve 13 and, preferably, an annular groove or the like running around. as preparation to be able to separate the bottom of the immersion sleeve more easily if necessary - for example to be able to saw it off, or the immersion sleeve 13 is also open from the outset at this end.
  • extension tubes of different lengths can be provided, one end of which is closed and the other end of which has an internal thread, so that extension tube and Immersion sleeve 13 can be easily connected.
  • the two control devices are injected in a front end cover 17 of a container during its manufacture in the plastic injection molding process and together form a structural unit.
  • Contact devices 4, 5 and 6 of the anode rod 10 and immersion sleeve 13 are in this case mounted in a base-like cover reinforcement 17 b of the end cover 17.
  • the embodiment acc. Fig. 5 the attachment to a container 3 only at a push-through hole of the container and by screwing using a screw nut 15 together with the usual sealing and locking washers, requires as an injection molded part, into which the contact sleeve 6 is injected, only an annular stop part 2 and an additional screw thread for the screw nut 15 on the outside pointing end of the contact sleeve 6. As shown, this embodiment is suitable for a fixed signal device.
  • the screw bushing 5 - in contrast to the drawing - has a smaller diameter than the contact sleeve 5 so that contact with the contact sleeve 6 is made possible at which slipping on the approximately sleeve-shaped contact of the device, the other contact arranged inside the approximately sleeve-shaped contact touches the contact pin 4 or its contact surface 4a.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

L'anode reactive est munie de deux pieces de contact (6, 4) qui sont accessibles depuis l'exterieur, qui traversent le joint filete, sont isolees l'une de l'autre et qui s'etendent dans une cavite a faces planes contenant la tige d'anode ou sont au moins en liaison spatiale avec elle. L'anode permet avec l'extremite accessible de l'exterieur le branchement d'un circuit de signalisation optique ou acoustique. L'extremite en liaison spatiale avec la cavite de tige d'anode agit comme commutateur electrique aussitot que la tige d'anode (10) est consommee. L'eau du recipient penetre dans la cavite, mouille ou enveloppe les contacts (4, 6) fermant ainsi le circuit.
EP81902648A 1980-09-17 1981-09-17 Anode reactive avec indicateur de consommation et capsule de plongee pour sonde thermique Expired EP0060289B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81902648T ATE18074T1 (de) 1980-09-17 1981-09-17 Opferanode mit verbrauchsanzeige und tauchhuelse fuer einen waermefuehler.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803035450 DE3035450A1 (de) 1980-09-17 1980-09-17 Opferanode mit verbrauchsanzeige
DE3035450 1980-09-17

Publications (2)

Publication Number Publication Date
EP0060289A1 true EP0060289A1 (fr) 1982-09-22
EP0060289B1 EP0060289B1 (fr) 1986-02-19

Family

ID=6112412

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81902648A Expired EP0060289B1 (fr) 1980-09-17 1981-09-17 Anode reactive avec indicateur de consommation et capsule de plongee pour sonde thermique

Country Status (3)

Country Link
EP (1) EP0060289B1 (fr)
DE (1) DE3035450A1 (fr)
WO (1) WO1982001017A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3726090A1 (de) * 1987-08-03 1989-02-16 Hoessle Sibylle Opferanode mit verbrauchsanzeige fuer wasserbehaelter und warmwasserbereiter
AT390968B (de) * 1987-09-28 1990-07-25 Rapido Waermetechnik Gmbh Als signalgeber dienende anode
IT8904857A0 (it) * 1989-09-29 1989-09-29 Elle Di Caneppele G E Figli S Anodo sacrificale di protezione contro la corrosione.
DE102006025223B4 (de) * 2006-05-29 2011-01-27 Magontec Gmbh Opferanode für den kathodischen Korrosionsschutz
CN108823571B (zh) * 2018-01-24 2020-06-23 中国船舶重工集团公司第七二五研究所 一种具备临界报警功能的智能海水管路牺牲阳极结构及其腐蚀状态原位监测方法
CN108954848B (zh) * 2018-08-10 2023-10-13 珠海格力电器股份有限公司 用于提醒阳极层是否消耗完毕的装置、热水器及提醒方法
CN109059292B (zh) * 2018-08-13 2023-01-24 珠海格力电器股份有限公司 镁棒及具有其的热水器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748250A (en) * 1953-08-31 1956-05-29 Smith Corp A O Thermoelectric protective unit
US3306109A (en) * 1963-07-11 1967-02-28 Robertshaw Controls Co Insulator insert for thermal sensing device
DE1258063B (de) * 1965-01-16 1968-01-04 Froeling Fa Geb Heizrohrsystem fuer den Brauchwasserbehaelter eines Warmwasserbereiters
DE1995323U (de) * 1968-08-06 1968-10-24 Buderus Eisenwerk Vorrichtung zur befestigung einer opferanode im wasserbehaelter.
US4051007A (en) * 1975-10-06 1977-09-27 Ludwig Hossle Sacrificial anodes for cathodic protection

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8201017A1 *

Also Published As

Publication number Publication date
DE3035450C2 (fr) 1989-06-29
WO1982001017A1 (fr) 1982-04-01
EP0060289B1 (fr) 1986-02-19
DE3035450A1 (de) 1982-04-29

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