DE382985C - Insulation of the electrode leads in electrically heated steam and hot water boilers - Google Patents

Insulation of the electrode leads in electrically heated steam and hot water boilers

Info

Publication number
DE382985C
DE382985C DEA33519D DEA0033519D DE382985C DE 382985 C DE382985 C DE 382985C DE A33519 D DEA33519 D DE A33519D DE A0033519 D DEA0033519 D DE A0033519D DE 382985 C DE382985 C DE 382985C
Authority
DE
Germany
Prior art keywords
hot water
electrode leads
heated steam
insulation
water boilers
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
DEA33519D
Other languages
German (de)
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.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
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 BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Priority to DEA33519D priority Critical patent/DE382985C/en
Application granted granted Critical
Publication of DE382985C publication Critical patent/DE382985C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/30—Electrode boilers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Description

Isolierung der Elektrodenzuleitungen in elektrisch beheizten Dampf-und Warmwasserkesseln. In elektrisch beheizten Dampf- und Warmwasserkesseln, bei denen das Wasser zwischen den Elektroden als Heizwiderstand dient, besteht eine Schwierigkeit in einer zweckmäßig ausgebildeten Isolation der Elektrodenzuleitungen. Sie muß nicht nur einen Stromübergang zwischen benachbarten Elektrodenzuleitungen durch das Wasser verhindern; sondern auch mechanisch haltbar sein, den Beanspruchungen durch Wärmeausdehnung gewachsen sein und chemischen bzw. elektrochemischen Einflüssen widerstehen. Ein Baustoff; der allen diesen Anforderungen genügt, ist bisher noch nicht gefunden worden.Insulation of the electrode leads in electrically heated steam and Hot water boilers. In electrically heated steam and hot water boilers where the water between the electrodes serves as a heating resistor, there is a problem in an appropriately designed insulation of the electrode leads. You don't have to only one current transfer between adjacent electrode leads through the water impede; but also be mechanically durable, the stresses caused by thermal expansion be grown and withstand chemical and electrochemical influences. A Building material; that meets all of these requirements has not yet been found been.

Nach der Erfindung erhält daher die Elektrodenzuleitung mehrere konzentrische Isolierhüllen, von denen jede einen Teil der gestellten Bedingungen erfüllt, und zwar eine Hülle, die wärmetechnisch einwandfrei, aber gegen chemische Einflüsse und mechanische Beanspruchung weniger widerstandsfähig zu sein braucht, und darüber eine weitere Hülle, die chemisch und mechanisch gut brauchbar, gegen Wärmebeanspruchungen jedoch empfindlicher sein kann.According to the invention, therefore, the electrode lead is given several concentric ones Insulating sleeves, each of which fulfills part of the specified conditions, and a shell that is thermally perfect, but against chemical influences and mechanical stress needs to be less resistant, and above another shell that can be used chemically and mechanically well against thermal stresses however, it can be more sensitive.

Beispielsweise kann die innere Hülle aus einem Quarzrohr bestehen, das in einem Stück über die gesamte Länge der Elektrodenzuleittmg gezogen wird, `nährend außen ein Schutzmantel aus Porzellan oder Ton darüberliegt, der wegen seiner schlechten wärmetechnischen Eigenschaften aus kurzen, aufeinandergesetzten Rohrstücken zusammengesetzt sein kann. Jede Hülle kann auch aus mehreren konzentrischen Lagen bestehen.For example, the inner shell can consist of a quartz tube, which is drawn in one piece over the entire length of the electrode lead, `` nourishing, a protective coat made of porcelain or clay lies on top of it, which because of its poor thermal properties from short, stacked pieces of pipe can be composed. Each shell can also consist of several concentric layers exist.

Claims (1)

PATENTANSPRÜCHE: i. Isolierung der Elektrodenzuleitungen in elektrisch beheizten Dampf- und Warmwasserkesseln mit zwei konzentrischenIsolierhüllen, dadurch gekennzeichnet, daß die innere, aus wärmetechnisch widerstandsfähigem Stoff, insbesondere Quarz, bestehende Isolierhülle von einer chemisch und mechanisch widerstandsfähigeren Hülle, insbesondere aus Porzellan, umgeben ist, so daß durch dieses System den Anforderungen genügt wird, die an eine Isolierhülle aus einem einzigen Material nicht gestellt werden können. a. Isolierung nach Anspruch i, dadurch gekennzeichnet, daß die Außenhülle aus kurzen, aufeinandergesetzten Rohrstücken zusammengesetzt ist. 3. Isolierung nach Anspruch i, dadurch gekennzeichnet, daß mindestens eine der 1#eiden verschiedenartigenIsolierhüllen aus mehreren konzentrischen Lagen aus gleichem Material besteht.PATENT CLAIMS: i. Isolation of the electrode leads in electrical heated steam and hot water boilers with two concentric insulating sleeves, thereby characterized in that the inner, made of thermally resistant material, in particular Quartz, existing insulating cover of a chemically and mechanically more resistant Sheath, in particular made of porcelain, is surrounded, so that this system meets the requirements is sufficient, which is not placed on an insulating sleeve made of a single material can be. a. Insulation according to claim i, characterized in that the outer shell is composed of short, stacked pieces of pipe. 3. Isolation according to claim i, characterized in that at least one of the two different types of insulating sleeves consists of several concentric layers made of the same material.
DEA33519D 1920-06-08 1920-06-08 Insulation of the electrode leads in electrically heated steam and hot water boilers Expired DE382985C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA33519D DE382985C (en) 1920-06-08 1920-06-08 Insulation of the electrode leads in electrically heated steam and hot water boilers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA33519D DE382985C (en) 1920-06-08 1920-06-08 Insulation of the electrode leads in electrically heated steam and hot water boilers

Publications (1)

Publication Number Publication Date
DE382985C true DE382985C (en) 1923-10-09

Family

ID=6928199

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA33519D Expired DE382985C (en) 1920-06-08 1920-06-08 Insulation of the electrode leads in electrically heated steam and hot water boilers

Country Status (1)

Country Link
DE (1) DE382985C (en)

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