DE441529C - Protection of heat exchange devices provided with pipes against electrolytic corrosion - Google Patents

Protection of heat exchange devices provided with pipes against electrolytic corrosion

Info

Publication number
DE441529C
DE441529C DEA47798D DEA0047798D DE441529C DE 441529 C DE441529 C DE 441529C DE A47798 D DEA47798 D DE A47798D DE A0047798 D DEA0047798 D DE A0047798D DE 441529 C DE441529 C DE 441529C
Authority
DE
Germany
Prior art keywords
protection
heat exchange
electrolytic corrosion
against electrolytic
devices provided
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
Application number
DEA47798D
Other languages
German (de)
Inventor
Albert Zander
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA47798D priority Critical patent/DE441529C/en
Application granted granted Critical
Publication of DE441529C publication Critical patent/DE441529C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/004—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using protective electric currents, voltages, cathodes, anodes, electric short-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)

Description

DEUTSCHES REICHGERMAN EMPIRE

AUSGEGEBEN AM
8. MÄRZ 1927ISSUED ON
MARCH 8, 1927

REICHSPATENTAMTREICH PATENT OFFICE

PATENTSCHRIFTPATENT LETTERING

- JVi 441529 ~ KLASSE 17d GRUPPE- JVi 441529 ~ CLASS 17d GROUP

Allgemeine Elektricitäts-Gesellschaft in Berlin*).General Electricity Society in Berlin *).

Schutz von mit Röhren versehenen Wärmeaustauschapparaten gegen elektrolytische Anfressungen.Protection of heat exchangers provided with tubes against electrolytic corrosion.

Zusatz zum Patent 424 6Addition to patent 424 6

Patentiert im Deutschen Reiche vom 19. Mai 1926 ab. Das Hauptpatent hat angefangen am 1. Juni 1923. Patented in the German Empire on May 19, 1926. The main patent started on June 1, 1923.

Gegenstand der vorliegenden Erfindung ist eine besondere Anordnung der Isolationen, durch welche nach dem Anspruch des Hauptpatentes dafür gesorgt wird, daß dex Hauptstrom von den Anoden durch die ganze} Länge der Rohre hindurchtreten muß, bevor er durch die Rohrsctützwand zu dem Minuspol der Schutzdynamo abfließen kann. Ihr Kennzeichen bestetht darin, daß diese Isolationen ίο zwischen dem Mantel und dor Zwischenwand angeordnet sind, welche nach dem Hauptpatent an den Minuspol der Schutzdynamo angeschlossen ist.The subject of the present invention is a special arrangement of the insulation, by which, according to the claim of the main patent, it is ensured that the main flow from the anodes must pass through the full length of the tubes before passing through the Rohrsctützwand can flow off to the negative pole of the protective dynamo. Your registration number consists in the fact that this insulation ίο between the jacket and the partition are arranged, which is connected to the negative pole of the protective dynamo according to the main patent.

Auf diese Weise wird ein unmittelbarer Stromübergang vom Mantel zur Zwischenwand verhindert, und es hat sich gezeigt, daß es bei dieser Anordnung keines Schutzanstriches von Kondensatorteilen bedarf, um den Schutzstrorn so zu führen, daß die Rohre auf ihrer ganzen Länge gegejn Änfressungen wirksam geschützt werden; de\r Schutzstrom wird also von den beiderseits angeordneten Anoden durch das Innere der Rohre bis zu deren Mitte hindurchgeführt. In der Zedchnung ist ein Ausführungsbeispiel deis Erfindungsgegen-Standes dargestellt.In this way there is a direct current transfer from the jacket to the partition prevented, and it has been shown that there is no protective coating in this arrangement of capacitor parts is required to guide the protective current so that the tubes on their be effectively protected against pitting over the entire length; the protective current will be from the anodes arranged on both sides through the interior of the tubes to their center. In the assignment is an embodiment of the subject matter of the invention shown.

*) Von dem Patentsucher ist als der Erfinder angegeben worden:*) The patent seeker stated as the inventor:

Albert Zander in Kiel-Wik.Albert Zander in Kiel-Wik.

Wie in der Zeichnung des Hauptpatentes bezeichnet α einen Kondensator, dem von beiden Wasserkammexn aus durch die isoliert eingesetzten Anoden b ein Schutzstrom zu-S geführt wird. Die Rohrboden sind mit c, die Rohrzwischenwand mit d bezeichnet. Diese letztere ist an dem Minuspol der Schutz dynamo angeschlossen. Die Rohrzwischeiiwand schließt aber gemäß der Zusatzerfmdung nicht unmittelbar an den Mantel an, sondern ist durch Winkellaschen / mit dem. Mantel in solcher Weise verbunden, daß zwischen Wand und Mantel ringsum ein ringförmiger Zwischenraum gewahrt bleibt. Die Zwischenwand ist an die Laschen mittels Bolzen m angeschraubt und durch besondere Isolierungen η gegen Bolzen und Laschen isoliert. Die Isolierungen η und der rings um die Zwischenwand vorgesehene Zwischenraum bewirken eine; vollständige Isolierung der letzteren gegenüber dem Mantel.As in the drawing of the main patent, α denotes a capacitor to which a protective current is fed to-S from both water chambers through the insulated anodes b. The tube sheets are designated with c, the intermediate tube wall with d . The latter is connected to the negative pole of the protective dynamo. However, according to the additional invention, the intermediate pipe wall does not directly adjoin the jacket, but is connected to the jacket by means of angle brackets. Sheath connected in such a way that an annular space is preserved all around between the wall and the jacket. The partition is screwed to the brackets by means of bolts m and isolated from bolts and brackets by special insulation η. The insulation η and the space provided around the partition cause a; complete isolation of the latter from the mantle.

Claims (2)

Patentanspküche:Patent kitchen: 1. Schutz von mit Röhren versehenen Wäraaeaustauschapparaten gegen elektrolytische Anfressungen unter Verwendung eines Schutzstromes nach Patent 424 611, dadurch gekennzeichnet, daß die den Stromeintritt nach der Mitte der Röhren hin verlegenden Isolationen zwischen .der Zwischenwand und der Mantelwand des Wärmeaustauschapparates angeordnet sind.1. Protection of tubular heat exchangers against electrolytic Corrugations using a protective current according to patent 424 611, characterized in that the current inlet to the center of the tubes laying insulation between .der Intermediate wall and the jacket wall of the heat exchange apparatus are arranged. 2. Schutz von mit Röhren versehenen Wärmeaustauschapparaten nach Anspruch i, dadurch gekennzeichnet, daß die Isolationen unter Vermeidung von Isolieranstrichen auf den Teilen des Apparates aus Stützisolatoren, welche dia nicht an den Mantel heranreichende Zwischenwand tragen, und aus Durchführungsisolatoren bestehen, welche die an die Zwischenwand angeschlossenen Zuleitungen enthalten.2. Protection of tubular heat exchange apparatus according to claim i, characterized in that the insulation, avoiding insulating paints on the parts of the apparatus made of post insulators, which the partition wall does not come close to the jacket wear, and consist of bushing insulators, which are attached to the partition connected supply lines included.
DEA47798D 1926-05-19 1926-05-19 Protection of heat exchange devices provided with pipes against electrolytic corrosion Expired DE441529C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA47798D DE441529C (en) 1926-05-19 1926-05-19 Protection of heat exchange devices provided with pipes against electrolytic corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA47798D DE441529C (en) 1926-05-19 1926-05-19 Protection of heat exchange devices provided with pipes against electrolytic corrosion

Publications (1)

Publication Number Publication Date
DE441529C true DE441529C (en) 1927-03-08

Family

ID=6935994

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA47798D Expired DE441529C (en) 1926-05-19 1926-05-19 Protection of heat exchange devices provided with pipes against electrolytic corrosion

Country Status (1)

Country Link
DE (1) DE441529C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588022A (en) * 1982-01-21 1986-05-13 C-I-L Inc. Anodic protection system and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588022A (en) * 1982-01-21 1986-05-13 C-I-L Inc. Anodic protection system and method

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