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
  • 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
  • F24H9/0005—Details 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 a consumption display and an iron core for water tanks and water heaters, in which after its consumption in water that has penetrated into a sleeve-shaped fastening means attached to a tank wall, a piston-like signal pin as a consumption indicator is partly used in the tank pushes out the contour.
• the display means a displaceable signal pen
• the display means is displaced after the signal anode has been consumed by water which has been subjected to the operating pressure of the container in such a way that it appears on the outer wall of the container .
• the signal pin must have an adequate seal to prevent water from escaping from the
• the signal pin can be manipulated when the anodes have not yet been used and can thus be pulled out as a characteristic of an anode which is also used up, or vice versa, with one used Ano ⁇ de, pressed for playful reasons.
• the signal pin - instead of jumping out again due to the tank pressure - can be blocked by the sealing rings.
• the principle of the consumption display by means of an outstanding signal pin visible on the container corresponds to the economic efficiency required in commercial companies when determining consumption.
• the manufacture of such an anode with signal pin is complex because of the additional adjustment required after assembly.
• Oyferanodes are manufactured in the Reyel
• the extrusion or casting process is centrally equipped with an iron core from one end wall to the other. It serves to hold the anodic material together during the removal process so that fragments of the anodic material do not fall into the container.
• the invention has for its object, while maintaining the appearing on the outer wall of the container analog shaped display means the disadvantages listed _ ⁇ -
• This object is achieved in that at the end of the sleeve-shaped fastening means protruding from the anode and the container there is arranged a container-like, transparent hollow body filled with a chemical agent which changes color when water enters, in such a way that in the sleeve-shaped fastening means penetrates water into the container-like, transparent hollow body, and because the sleeve-shaped fastening means and an axially adjoining blind bore of the anode are filled with a wick from the bag-like end of the pocket bore to the transparent hollow body are, and in that the iron core in its Län serExtension outside of the anode axis and parallel to this is arranged in the anode.
• the container-like transparent hollow body referred to as schlag ⁇ atrone Farbu containing conveniently commercially available as filling silica gel which changes color to ingress of water from blue to pink, as well as a supply Beimen ⁇ • a commercially available inorganic pigment, whereby the gel turns red when water is entered.
• the dimension of the color change cartridge is not dependent on the minimum dimensions of a movement guide and bore, as in the case of a signal pen, the length and diameter of the color change cartridge can be larger
• the sleeve-shaped fastening means and the subsequent axial blind bore of the anode are filled with a continuous wick.
• the wick can have a wire core for easy insertion during assembly.
• the water that has penetrated is conveyed safely up to and into the color change cartridge, the latter made possible by an end face bore in the space of the sleeve-like screw thread and favored by shortening this bore by means of a conical extension of this end face on its side to the surface facing the chemical agent.
• the wick that fills the water supply and displaces the air to a high degree enables a further test procedure that could not be carried out with previously known sacrificial anodes with consumption indicators.
• sacrificial anodes with consumption indicators.
• At in In addition to the usual hairline cracks on the inside of the enamelling, which can be controlled by known sacrificial anodes, there are also flat defects that may have been present before commissioning. Such imperfections result in greater material removal diametrically at the anode. If there is a fault in the area of the protective cap and the blind hole ending behind it, there is still an accelerated material removal and consumption display. The existing intention to replace such containers prematurely is hereby automatically indicated as required.
• a diametrical removal of material at the anode accelerates the anode, for example in the sense of a cross-section, in such a way that part of the anode falls into the container if the iron core does not cover the entire length of the anode.
• the blind bore reaching the end of the anode can be mastered, in that a correspondingly long wick fills the blind bore and the sleeve-shaped fastening means and causes the air to be displaced and the water which has penetrated to be conveyed.
• the iron core is arranged outside the anode axis and parallel to it in the anode.
• the parts arranged in the anode and protruding into it are cast into the anode during the manufacturing process of the anode using the casting process, advantageously a mold casting process, and after assembly as a one-piece casting.
• a cast core is inserted into the sleeve-shaped fastening means for making short or long blind holes in the anode.
• the iron core can be varied as required. If a central arrangement of the iron core in the anode is desired when producing anodes with a short, normal blind bore, an iron core is used, the upper end of which is returned to the anode axis via a z-shaped double bend immediately after the end of the blind bore.
• the joining of the iron core and the sleeve-shaped fastening means is carried out by means of a closing and holding ring which can conveniently be plugged or screwed onto the sleeve-shaped fastening means and into which one end face the iron core is inserted, whereas the other end face together with the anode has an end face, forms flush termination of the anode.
• An exemplary embodiment of the invention is shown in the drawing and is described in more detail below; it shows: 1 the sacrificial anode with consumption indicator, mounted on a container wall, in side view and partly in longitudinal section,
• Fig. 2 is a cross section in full along the line A-B in Fig. 1;
• FIG. 3 shows an enlarged section of the color change cartridge with screwed-in sleeve-shaped fastening means, in side view and partly in
• the sacrificial anode with consumption indicator according to FIG. 1 is screwed to the container wall 8 by means of a sleeve-shaped fastening means 6 and a screw nut 9 and by placing a sealing washer 10 between the anode 1 and the container wall 8.
• the sleeve-shaped fastening means 6, an end and retaining ring 5 and the iron core 4 are arranged as an assembled casting.
• part of the fastening means 6 protrudes from the anode 1.
• the iron core 4 is introduced outside of the anode axis and parallel to it with the aid of the finishing and catering 5. This makes it possible, in addition to a normally long blind hole 3, to insert a blind hole 3a which almost completely penetrates the anode 1.
• 1 shows the long blind bore 3a for the sake of clarity without a wick 7 and the blind bore 3 with a wick 7.
• the anode 1 has a protective cap 2 on its fastening end face and adjacent lateral surface.
• the sleeve-shaped fastening means 6 and the subsequent blind hole 3 are filled together with a continuous wick 7.
• the color change cartridge 12, 13 is screwed onto the outer end of the sleeve-shaped fastening means 6.
• the water penetrating through the blind hole 3 or 3a when the anode 1 is used up passes through the wick 7, which is alternatively contained in each blind hole, into the ink-change cartridge 12, 13.
• FIG. 2 shows the anode 1 along the line A-B in FIG. 1 in cross section and primarily indicates the position of the iron core 4 on the sealing and retaining ring 5 and in comparison to the anode axis.
• the protective cap 2 is only shown as part of the circle.
• the wick 7 is omitted in the blind bore 3, at the same time the inner bore of the fastening mechanism 6.
• the color change cartridge 12, 13 in FIG. 3, shown as an enlarged detail from FIG. 1, supplies water through the wick 7 within the sleeve-shaped fastening means 6 until the chemical agent is filled in. tel 14 can be seen.
• the wick 7 still extends through a seal 11 and a corresponding breakthrough in the upper end of the filling space to approximately the filled chemical agent 14.
• the compactly filled chemical agent 14 is so through a conical design of the underside of the upper end brought as far as possible to the wick 7 and the breakthrough as short as possible, so that parts of the end of the wick can also be guided to the granular chemical agent 14.
• the color change cartridge is filled on the manufacturing side with the means 14 and then closed at the filling opening of its transparent, cylindrical hollow body 12 with a hollow body cover 13.
• the color change cartridge is screwed onto the free end of the sleeve-shaped fastening means 6 by means of a sleeve-like inner thread on the end face opposite the hollow body cover 13. If a color change cartridge that is already in use is damaged, the latter can easily be replaced after unscrewing the anode 1.
• the walls of the cylindrical hollow body 12 and hollow body cover 13, in particular the end face of the cover, are kept relatively thin in favor of high transparency.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• Thermal Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Physics & Mathematics (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Materials Engineering (AREA)
• Water Treatment By Electricity Or Magnetism (AREA)
• Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
• Irons (AREA)
• Prevention Of Electric Corrosion (AREA)
• Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
• Coating Apparatus (AREA)
• Cookers (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6360360

Family Applications (2)

Family Applications After (1)

Country Status (7)

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• 1988
  • 1988-08-04 DE DE3826760A patent/DE3826760C1/de not_active Expired
• 1989
  • 1989-07-24 EP EP89908828A patent/EP0381738A1/de active Pending
  • 1989-07-24 DE DE8989113543T patent/DE58900861D1/de not_active Expired - Fee Related
  • 1989-07-24 EP EP89113543A patent/EP0357925B1/de not_active Expired - Lifetime
  • 1989-07-24 AT AT89113543T patent/ATE72841T1/de not_active IP Right Cessation
  • 1989-07-24 AU AU40376/89A patent/AU4037689A/en not_active Abandoned
  • 1989-07-24 WO PCT/EP1989/000864 patent/WO1990001571A1/de not_active Application Discontinuation
  • 1989-08-02 DD DD89331404A patent/DD287060A5/de not_active IP Right Cessation
• 1990
  • 1990-04-03 RU SU904743672A patent/RU1787173C/ru active

Non-Patent Citations (1)

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