DE339365C - Chimney draft regulator with adjustable air inlet behind the smoke damper - Google Patents
Chimney draft regulator with adjustable air inlet behind the smoke damperInfo
- Publication number
- DE339365C DE339365C DENDAT339365D DE339365DD DE339365C DE 339365 C DE339365 C DE 339365C DE NDAT339365 D DENDAT339365 D DE NDAT339365D DE 339365D D DE339365D D DE 339365DD DE 339365 C DE339365 C DE 339365C
- Authority
- DE
- Germany
- Prior art keywords
- smoke
- air inlet
- adjustable air
- draft regulator
- chimney
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L11/00—Arrangements of valves or dampers after the fire
- F23L11/02—Arrangements of valves or dampers after the fire for reducing draught by admission of air to flues
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chimneys And Flues (AREA)
Description
Schornsteinzugregler mit regelbarem Lufteinlaß hinter dem Rauchschieber. Bei den Schornsteinen für Dampfkesselfeuerungen wird behufs v itweiser Verminderung des Zuges nach Abbrand des Kohlenaufwurfs der Rauchschieber teilweise geschlossen.Chimney draft regulator with adjustable air inlet behind the smoke damper. In the case of chimneys for steam boiler firing, there is a need to reduce the consumption of the train after the coal burnt out, the smoke slide partially closed.
Diese Raucbs2hieber dürfen selbst in ihrer Sehlußstellung nicht so dicht schließen, daß keine Rauch- oder heißen Feuergase durch den Schörnstein abgesaugt werden können, weil sich sonst unter Umständen unter dem Kessel Druck entwickelt, der sich gelegentlich explosiv äußert und dabei das Mauerwerk zerstört. Um letzteres sicher zu verhüten, hat man schon vorgeschlagen, eine kleine Öffnung in dem Rauchschieber anzuordnen, so daß selbst in der Schlußstellung des Schiebers noch immer Abgase entweichen können.These buffoons are not allowed to do so, even in their close-up position close tightly so that no smoke or hot fire gases are sucked out through the chimney because otherwise pressure may develop under the boiler, which occasionally expresses itself explosively and thereby destroys the masonry. To the latter Safe prevention has already been proposed to make a small opening in the smoke slide to be arranged so that even in the final position of the slide still exhaust gases can escape.
Die Zugkraft des Schornsteins wird hierbei nicht ganz aufgehoben, sondern die Abgase strömen mit großer Geschwindigkeit durch die Öffnung hindurch. Dies hat jedoch einen Verlust an heißen Feuergasen zur Folge, der wieder durch Brennstoff ersetzt werden muß.The pulling force of the chimney is not completely canceled here, instead, the exhaust gases flow through the opening at high speed. However, this results in a loss of hot fire gases, which is again due to fuel needs to be replaced.
Durch Anordnung einer regelbaren Nebenluftöffnung hinter dem Rauchschieber wird dieser Verlust gemäß der Erfindung verhindert, doch muß dabei die einzuführende Luft in dem Schornstein notwendig vorgewärmt werden, damit eine Abkühlung des Schornsteins und infolgedessen eine Verminderung des Zuges, die auch bei Wiederöffnung des Rauchschiebers noch eine geraume Zeit fortdauern würde, soviel als möglich vermieden wird.By arranging an adjustable secondary air opening behind the smoke damper this loss is prevented according to the invention, but it must be the one to be introduced Air in the chimney must be preheated to allow the chimney to cool down and consequently a reduction in draft, even when the smoke valve is reopened would go on for a long time, avoided as much as possible.
Es ist zwar schon bekannt, bei Ofenfeuerungen Nebenluft in regelbarer Menge hinter dem Rauchschieber in den Heizzug einzuführen. Der Zweck einer solchen Vorrichtung ist aber im Gegensatz zu dem -der vorliegenden Erfindung der, die Heizzüge oder den Schornstein gegebenenfalls schnell abzukühlen, und deshalb wird dort die Luft kalt zugeführt.It is already known that secondary air can be regulated for furnace firing Introduce the quantity into the heating flue behind the smoke damper. The purpose of such However, in contrast to the device of the present invention, the device is the heating flues or to cool the chimney quickly if necessary, and therefore there will be the Air supplied cold.
Eine Ausführungsform des Gegenstandes der Erfindung ist in der Zeichnung dargestellt. Über dem Rauchkanal A ist der durch einen Schieber D abschließbare Nebenluftkanal E angeordnet und mit einer Eisenplatte F abgedeckt, durch deren Erhitzung die einströmende Nebenluft vorgewärmt- wird. Die Regelung des Luftschiebers D kann zweckmäßig mit dem Rauchschieber B durch eine Hebeleinrichtung r, a derart verbunden sein, daß, wenn der Rauchschieber B teilweise oder ganz geschlossen wird, der Luftschieber D sich um ebensoviel oder ganz öffnet.An embodiment of the subject matter of the invention is shown in the drawing shown. Above the smoke channel A, the one that can be locked by a slide D. Secondary air duct E arranged and covered with an iron plate F by heating it the incoming secondary air is preheated. The regulation of the air slide D can expediently connected in this way to the smoke slide B by a lever device r, a be that when the smoke damper B is partially or completely closed, the air damper D opens as much or completely.
Bei dieser Einrichtung entweicht bei geschlossenem Rauchschieber B durch dessen Undichtheiten hindurch nur gerade eine solche Menge Rauchgase in den Schornstein C, als notwendig ist, um eine Drucksteigerung in der Feuerung zu verhindern. Die Saugkraft des Schornsteins wirkt nur unbedeutend auf Steigerung der Geschwindigkeit der durch die Undichtheiten des Rauchschiebers hindurch entweichenden Rauchgase.With this device, smoke escapes when the smoke damper B is closed through its leaks only just such a quantity of smoke gases in the Chimney C than is necessary to prevent an increase in pressure in the furnace. The suction power of the chimney has only an insignificant effect on the increase in speed the smoke gases escaping through the leaks in the smoke valve.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE339365T |
Publications (1)
Publication Number | Publication Date |
---|---|
DE339365C true DE339365C (en) | 1921-07-22 |
Family
ID=6223555
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT339365D Expired DE339365C (en) | Chimney draft regulator with adjustable air inlet behind the smoke damper |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE339365C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2884297A1 (en) * | 2005-04-06 | 2006-10-13 | Conseils Etudes Et Recherches En Gestion De Lair Cerga | Air outlet for fossil fuel boiler, has lateral peripheral wall comprising lateral outlet connected to ventilation network by utilizing secondary exhaust duct, where duct permits evacuation of flow of ambient air towards network |
-
0
- DE DENDAT339365D patent/DE339365C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2884297A1 (en) * | 2005-04-06 | 2006-10-13 | Conseils Etudes Et Recherches En Gestion De Lair Cerga | Air outlet for fossil fuel boiler, has lateral peripheral wall comprising lateral outlet connected to ventilation network by utilizing secondary exhaust duct, where duct permits evacuation of flow of ambient air towards network |
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