DE406337C - Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases - Google Patents

Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases

Info

Publication number
DE406337C
DE406337C DEM84766D DEM0084766D DE406337C DE 406337 C DE406337 C DE 406337C DE M84766 D DEM84766 D DE M84766D DE M0084766 D DEM0084766 D DE M0084766D DE 406337 C DE406337 C DE 406337C
Authority
DE
Germany
Prior art keywords
preheater
boiler
tube bundle
developed
heating gases
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
DEM84766D
Other languages
German (de)
Inventor
Rudolf Schirmer
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.)
Maschinenbauanstalt Humboldt AG
Original Assignee
Maschinenbauanstalt Humboldt 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 Maschinenbauanstalt Humboldt AG filed Critical Maschinenbauanstalt Humboldt AG
Priority to DEM84766D priority Critical patent/DE406337C/en
Application granted granted Critical
Publication of DE406337C publication Critical patent/DE406337C/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/16—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways
    • F22D1/20—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways and directly connected to boilers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Stellrohrkessel, dessen letztes Rohrbündel als Vorwärmer mit wagerecht verlaufenden, von den Heizgasen senkrecht getroffenen Rohrschlangen ausgebaut ist. Die Erfindung bezieht sich auf einen Steilrohrkessel, dessen letztes Rohrbündel als Vorwärmer mit wagerecht verlaufenden, von den Heizgasen senkrecht getroffenen Rohrschlangen ausgebaut ist, wobei dieses Rohrbündel nicht in den Hauptwasserumlaufkreis des Kessels eingeschaltet ist, sondern einen von ersterem unabhängigen Nebenzweig bildet.Control tube boiler, the last tube bundle as a preheater with horizontal extending pipe coils hit vertically by the heating gases. The invention relates to a vertical tube boiler, the last tube bundle as a preheater with horizontally running, vertically hit by the heating gases Coiled tubes are removed, this tube bundle not in the main water circuit of the boiler is switched on, but a secondary branch independent of the former forms.

Das Wesen der Erfindung besteht darin, daß durch das Vorwärmerrohrbündel nur kesselstein- und gasfreies Wasser fließt, und zwar in an sich bekannter Weise im Gegenstrom zu den Rauchgasen,- während das Zusatzwasser unmittelbar in den Oberkessel geleitet wird.The essence of the invention is that through the preheater tube bundle only scale-free and gas-free water flows, and in itself known way in countercurrent to the flue gases, - while the make-up water directly is passed into the upper boiler.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung veranschaulicht. Wie ersichtlich, sind die letzten Kesselrohre in bekannter Weise als wagerecht liegende Rohrschlangen ausgebildet, in welchen das vorzuwärmende Wasser im Gegenstrom zu den Rauchgasen, die durch Pfeile angedeutet sind, fließt. Bei Verwendung von Rohrschlangen muß aber das Wasser so rein sein, daß es keinen Kesselstein bildet, da das Rohrinnere nicht gereinigt werden kann. In allen Kraftanlagen steht Kondensat als kesselsteinfreies Wasser zur Verfügung, welchem aber stets 5 bis to Prozent Frischwasser zugesetzt werden muß, als Ersatz für verloren gegangenes Kondensat. Wird nun das Kondensat mit dem Frischwasser gemischt durch die Rohrschlangen geleitet, so wird in letzteren sich bald Kesselstein ablagern. Deshalb soll das Kondensat allein bei b eingeführt und durch die Rohrschlangen a fließen, während das Frischwasser bei c unmittelbar in den Oberkessel d geleitet wird.An embodiment of the invention is illustrated in the drawing. As can be seen, the last boiler tubes are in a known manner as lying horizontally Coiled tubes formed in which the water to be preheated in countercurrent to the flue gases, which are indicated by arrows, flows. When using pipe coils but the water must be so pure that it does not form scale, because the inside of the pipe cannot be cleaned. In all power plants there is condensate as scale-free Water available, to which, however, 5 to to percent fresh water is always added as a replacement for lost condensate. Will now the condensate mixed with the fresh water is passed through the pipe coils, so in the latter Scale soon build up. Therefore the condensate should only be introduced at b and flow through the coils a, while the fresh water is immediately at c is passed into the upper boiler d.

Da die Temperatur des Zusatzwassers stets niedrig ist, kann das letztere dazu benutzt werden, den Dampfdruck auszugleichen, falls derselbe durch wechselnde Dampfentnahme schwanken sollte.Since the temperature of the make-up water is always low, the latter can can be used to equalize the vapor pressure, if the same by changing Steam extraction should fluctuate.

Claims (1)

PATENT-ANsPRUCH: Steilrohrkessel, dessen letztes Rohrbündel als Vorwärmer mit wagerecht ver= laufenden, von den Heizgasen senkrecht getroffenen Rohrschlangen ausgebaut ist, wobei dieses Rohrbündel nicht in den Hauptwasserumlaufkreis des Kessels eingeschaltet ist, sondern einen von ersterem unabhängigen Nebenzweig bildet, dadurch gekennzeichnet, daß das letzte Rohrbündel nur zum Vorwärmen von kesselstein- und gasfreiem Wasser dient, während das Zusatzwasser unmittelbar in den Oberkessel geleitet wird. PATENT CLAIM: Steep tube boiler, the last tube bundle of which is developed as a preheater with horizontally extending tube coils hit vertically by the heating gases, this tube bundle not being connected to the main water circulation circuit of the boiler, but forming a secondary branch independent of the former, characterized in that the last tube bundle is only used to preheat scale-free and gas-free water, while the make-up water is fed directly into the upper boiler.
DEM84766D 1924-04-27 1924-04-27 Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases Expired DE406337C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM84766D DE406337C (en) 1924-04-27 1924-04-27 Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM84766D DE406337C (en) 1924-04-27 1924-04-27 Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases

Publications (1)

Publication Number Publication Date
DE406337C true DE406337C (en) 1924-11-22

Family

ID=7320011

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM84766D Expired DE406337C (en) 1924-04-27 1924-04-27 Steep tube boiler, the last tube bundle is developed as a preheater with horizontally running pipe coils that are hit vertically by the heating gases

Country Status (1)

Country Link
DE (1) DE406337C (en)

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