DE1073672B - - Google Patents
Info
- Publication number
- DE1073672B DE1073672B DENDAT1073672D DE1073672DA DE1073672B DE 1073672 B DE1073672 B DE 1073672B DE NDAT1073672 D DENDAT1073672 D DE NDAT1073672D DE 1073672D A DE1073672D A DE 1073672DA DE 1073672 B DE1073672 B DE 1073672B
- Authority
- DE
- Germany
- Prior art keywords
- air
- air preheater
- groups
- flue gas
- preheater
- 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.)
- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 230000001172 regenerating Effects 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 2
- 239000003570 air Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/16—Controlling superheat temperature by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M20/00—Details of combustion chambers, not otherwise provided for, e.g. means for storing heat from flames
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Description
Luftvorwärmeranlage für Dampferzeuger, bestehend aus hintereinandergeschalteten Heizflächengruppen und zwischenangeordneter Kühlfläche Es ist bereits bekannt, den Rotor von umlaufenden Regenerativ-Luftvorwärmern in mehrere auf derselben Welle mit Abstand befestigte Teilrotoren aufzuteilen. und es ist bereits vorgeschlagen worden, in den zwischen je zwei Teilrotoren befindlichen Rauchgasweg eine vorzugsweise von Speisewasser durchflossene Kühlfläche einzubauen.Air preheater system for steam generators, consisting of heating surface groups connected in series and intermediate cooling surface. It is already known to divide the rotor of revolving regenerative air preheaters into several partial rotors fastened at a distance on the same shaft. and it has already been proposed to build a cooling surface through which feed water preferably flows in the flue gas path located between each two partial rotors.
Die Erfindung besteht darin, in den Luftweg eines solchen regenerativ oder rekuperativ arbeitenden Luftvorwärmers zwischen aufeinanderfolgenden Luftvorwärmergruppen einen als Heißdampfkühler dienenden Lufterhitzer einzuschalten.The invention consists in the airway of such a regenerative one or recuperative air preheater between successive air preheater groups to switch on an air heater serving as a superheated steam cooler.
Mittels einer solchen Anordnung kann die Heißdampftemperatur der Dampferzeuger mit nicht überwiegend durch Strahlung beheiztem Überhitzer durch Steigerung der Verbrenntingsluft- und Feuerraumtemperatur viel wirksamer als durch die Heißdampfabkühlung an sich gesenkt und geregelt werden. Bei der bekannten Vorschaltung des Heißdampfkühlers vor die kälteste Luftvorwärmerstufe würde die Gesamtausnutzung der übrigen Kesselheizflächen wesentlich verschlechtert.By means of such an arrangement, the superheated steam temperature of the steam generator with superheater not predominantly heated by radiation by increasing the Combustion air and furnace temperature much more effective than through superheated steam cooling in itself be lowered and regulated. With the known upstream connection of the superheated steam cooler before the coldest air preheater stage would be the total utilization of the remaining boiler heating surfaces significantly worsened.
Für mehrstufige Regenerativvorwärmer gemäß dem genannten Vorschlag ergibt sich überdies der Vorteil einer besonders einfachen und raumsparenden Anordnung der Rauch,-as- und Luftkanäle.For multi-stage regenerative preheaters according to the proposal mentioned there is also the advantage of a particularly simple and space-saving arrangement the smoke, gas and air ducts.
Zwecks beliebiger, weitgehender Regelung der Arbeitsmitteltemperatur können überdies nach Bedarf zwischen je zwei Luftvorwärmerstufen Rauchgas-bzw. Luftteilmengen entnommen oder von außen zugeführt werden. Die Ableitung oder Zufuhr der Rauchgas- bzw. Luftteilmengen kann je nach Zweckmäßigkeit vor oder hinter den zusätzlichen Rauchgaskühl-bzw. Luftheizflächen erfolgen.Purpose any, extensive regulation of the working medium temperature can flue gas or also as needed between each two Luftvorwärmerstufen. Partial amounts of air are taken or supplied from the outside. The discharge or supply of the flue gas or partial amounts of air can, depending on the expediency, be before or after the additional flue gas cooling or cooling units. Air heating surfaces.
Die Zeichnung stellt ein Ausführungsbeispiel des Gegenstandes der Erfindung dar.The drawing represents an embodiment of the subject matter of Invention.
Der zur Anpassung an bestimmte Betriebsbedingungen auch mit waagerechter Achse anzuordnende Regenerativ-Luftvorwärmer ist in die Gruppen 1 und 2 unterteilt. Die vom Kessel kommenden Rauchgase gelangen durch die Zuführung 3 in den Rauchgasteil la der ersten umlaufenden Gruppe und dann nach Durchströmen des wärmeaufnehrnenden Wärmetauschers4, der als Vorwärmer oder als Kesselheizfläche verwendet wird, in den Rauchgasteil2a. der zweiten Luftvorwärmergruppe. Die Rauchgase verlassen die Einrichtung durch die Leitung 5. Die Luft gelangt vom Lüfter 6 zunächst in den Luftteil 2 b der zweiten Luftvorwärmergruppe und von hier über den Wärmetauscher 7 in den Luftteil 1 b der ersten Luftvorwärmergruppe. Durch die Leitung 8 -wird die Luft zur Verwendungsstelle abgeführt.The regenerative air preheater, which can also be arranged with a horizontal axis to adapt to certain operating conditions, is divided into groups 1 and 2. The flue gases coming from the boiler pass through the feed 3 into the flue gas part la of the first circulating group and then, after flowing through the heat-absorbing heat exchanger 4, which is used as a preheater or as a boiler heating surface, into the flue gas part 2a. the second air preheater group. The flue gases leave the device through the line 5. The air passes from the fan 6 first into the air part 2 b of the second air preheater group and from here via the heat exchanger 7 into the air part 1 b of the first air preheater group. The air is discharged to the point of use through the line 8.
Der Wärmetauscher 7 ist als Heißdampfkühler ausgebildet. Diese Anordnung ist vorteilhaft bei der Verwendung verschiedenwertiger Brennstoffe, bei der häufig eine stärkere Heißdampfkühlung zugleich mit einer höheren Lufterhitzung erwünscht ist.The heat exchanger 7 is designed as a superheated steam cooler. This arrangement is advantageous when using fuels of different values, in which often a stronger superheated steam cooling at the same time as a higher air heating is desired.
Man kann auch zwischen den Luftteil 2 b und 1 b des Luftvorwäriners einen regelbaren Teil der Luft unter Umgehung des Wärmetauschers 7 abführen und entweder beispielsweise einen Teil der Feuerung, für den Luft mit niedrigerer Temperatur benötigt wird, oder auch der Gruppe 1 b unmittelbar zuführen.It is also possible between the air part 2 b and 1 b of the Luftvorwäriners a variable portion of the air bypassing the heat exchanger 7 dissipate and either, for example, a part of the furnace, is required for the lower temperature air, or the group 1 b immediately perform.
Ferner besteht die Möglichkeit, dem Wärmetauscher 7 eine regelbare Umführungsleitung zuzuordnen, um die Menge des durch den Wärmetauscher fließenden Mittels zu beeinflussen. So er,-eben sich vielfältige Regelmöglichkeiten für die Temperatur sowohl des den Wärmetanscher durchfließenden Mittels als auch der Luft.There is also the possibility of assigning a controllable bypass line to the heat exchanger 7 in order to influence the amount of medium flowing through the heat exchanger. So there are various control options for the temperature of both the medium flowing through the heat exchanger and the air.
Claims (2)
Publications (1)
Publication Number | Publication Date |
---|---|
DE1073672B true DE1073672B (en) | 1960-01-21 |
Family
ID=597883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT1073672D Pending DE1073672B (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1073672B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036792A1 (en) * | 2005-08-02 | 2007-02-08 | Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh | Method and device for generating superheated steam |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE558731C (en) * | 1928-08-08 | 1932-09-10 | Fried Krupp Germaniawerft Akt | Air preheater for gradual air preheating, especially for high preheating of the additional air |
GB540797A (en) * | 1940-04-29 | 1941-10-30 | Howden James & Co Ltd | Improvements in or relating to air preheaters for use with boiler plant |
DE935273C (en) * | 1951-08-22 | 1955-11-17 | Steinmueller Gmbh L & C | Revolving regenerative air preheater for high air heating |
-
0
- DE DENDAT1073672D patent/DE1073672B/de active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE558731C (en) * | 1928-08-08 | 1932-09-10 | Fried Krupp Germaniawerft Akt | Air preheater for gradual air preheating, especially for high preheating of the additional air |
GB540797A (en) * | 1940-04-29 | 1941-10-30 | Howden James & Co Ltd | Improvements in or relating to air preheaters for use with boiler plant |
DE935273C (en) * | 1951-08-22 | 1955-11-17 | Steinmueller Gmbh L & C | Revolving regenerative air preheater for high air heating |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005036792A1 (en) * | 2005-08-02 | 2007-02-08 | Ecoenergy Gesellschaft Für Energie- Und Umwelttechnik Mbh | Method and device for generating superheated steam |
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