DE911769C - Automatic regulation for ovens with rooms with different temperatures - Google Patents
Automatic regulation for ovens with rooms with different temperaturesInfo
- Publication number
- DE911769C DE911769C DES19876D DES0019876D DE911769C DE 911769 C DE911769 C DE 911769C DE S19876 D DES19876 D DE S19876D DE S0019876 D DES0019876 D DE S0019876D DE 911769 C DE911769 C DE 911769C
- Authority
- DE
- Germany
- Prior art keywords
- furnace
- pyrometer
- ovens
- rooms
- muffle
- 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
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B17/00—Furnaces of a kind not covered by any preceding group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0003—Monitoring the temperature or a characteristic of the charge and using it as a controlling value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0006—Monitoring the characteristics (composition, quantities, temperature, pressure) of at least one of the gases of the kiln atmosphere and using it as a controlling value
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Description
Selbsttätige Regelung für Öfen mit Räumen verschieden hoher Temperatur Der Gegenstand des Patents 722 o58 betrifft eine selbsttätige Regelung für Öfen verschieden hoher Temperatur unter Verwendung zweier Pyrometer, von denen das eine in dem heißeren, das andere in dem kälteren Ofenteil angeordnet ist und die beide die Feuerung beeinflussen, und er besteht darin, daß das im heißeren Ofenteil angeordnete Pyrometer die fühlbare Wärme der die Feuerung unterhaltenden Stoffe bei gleichbleibender, chemisch gebundener Wärme regelt, während das im kälteren Ofenteil angeordnete Pyrometer in bekannter Weise die Regelung der Mengen der Verbrennungsstoffe (Gas und Luft) unter Einhaltung des einmal bestimmten Verhältnisses beider Stoffe zueinander übernimmt.Automatic control for ovens with rooms of different temperatures The subject of patent 722 058 concerns an automatic regulation for ovens different high temperatures using two pyrometers, one of which in the hotter, the other in the colder part of the furnace and the two affect the furnace, and it consists in the fact that the one located in the hotter part of the furnace Pyrometer the sensible heat of the substances maintaining the furnace with constant, chemically bound heat regulates, while the pyrometer arranged in the colder part of the furnace in a known way the regulation of the quantities of combustion substances (gas and air) in compliance with the once determined ratio of the two substances to each other.
Dieses Regelungsverfahren war bisher in seiner Anwendung auf metallurgische Öfen und auf keramische Öfen mit Wärmerückgewinnung durch die Abkühlung der gebrannten Ware beschrieben.This control method was previously applied to metallurgical Ovens and ceramic ovens with heat recovery by cooling the fired Goods described.
Es ist in der Beschreibung zwar gesagt, daß das Verfahren auch für jedes andere Ofensystem, welches mit verschieden hohen Temperaturen arbeitet, anwendbar ist, doch ist das neue Verfahren mit besonderem Vorteil auch auf solche Öfen anwendbar, bei denen die beiden einander beeinflussenden Temperaturen nicht auf das Wärmgut selber zu beziehen sind, sondern vielmehr auf die Temperatur des Behältnisses einerseits und die Temperatur des Glühgutes andererseits, also auf sogenannte Muffelöfen mit allen ihren Abarten.It is said in the description that the procedure also applies to any other furnace system that works with different high temperatures can be used is, but the new method can also be used with particular advantage in such furnaces at which the two mutually influencing temperatures do not affect the heat material yourself to are related, but rather to the temperature of the Container on the one hand and the temperature of the annealing material on the other hand, so on so-called muffle furnaces with all their varieties.
Bei diesen Ofen wirkt die Feuerung unmittelbar auf die Muffel; dieser unmittelbar wirkende Teil der Feuerung stellt den heißeren Teil des Ofen dar. Mittelbar wirkt die Feuerung durch Ausstrahlung der Muffel auf das Glühgut; dieser durch mittelbare Beheizung wirkende Teil stellt den kühleren Teil des Ofens dar.In these furnaces, the firing acts directly on the muffle; this The part of the furnace that acts directly represents the hotter part of the furnace. Indirectly the firing acts through the radiation of the muffle on the annealing material; this through indirect The heating part represents the cooler part of the furnace.
Bei der Übertragung des neuen Regelungseerfahrens auf Muifelöfen wird man das den heißeren Ofenteil regelnde Pyrometer zweckmäßigerweise an der Stelle anordnen, wo die größte Gefahr für Überhitzung der Muffel besteht. Wird die gefährliche Temperatur erreicht, so wirkt das Pyrometer in der üblichen Weise, z. B. über einen Kompensationsregler, dahin, daß Abgase vorzugsweise der Verbrennungsluft beigemengt und die Mengen der Abgase weiter so geregelt werden, daß die gefährliche Temperaturgrenze nicht überschritten wird.When the new regulatory procedure is transferred to Muifelöfen the pyrometer regulating the hotter part of the furnace is expediently at the point place where there is the greatest risk of overheating of the muffle. Will be dangerous When the temperature is reached, the pyrometer acts in the usual way, e.g. B. over a Compensation regulator to the effect that exhaust gases are preferably added to the combustion air and the quantities of the exhaust gases are further regulated so that the dangerous temperature limit is not exceeded.
Das Pyrometer im kühleren Teil des Ofens, also im Innern der Muffel, ordnet man zweckmäßigerweise an derjenigen Stelle an, wo das Glühgut zuerst die gewünschte Glühtemperatur erreicht, die nicht überschritten werden darf, also z. B. an der Ecke eines Stapels. Wird an dieser Stelle die Glühtemperatur erreicht, so- wirkt das Pyrometer wiederum über einen Kompensationsregler auf eine oder mehrere Drosselklappen, welche die Menge der zuströmenden Heizgase drosseln, so daß die Glühtemperatur im Innern der Muffel nicht überschritten wird.The pyrometer in the cooler part of the furnace, i.e. inside the muffle, expediently arranged at the point where the material to be annealed first the desired annealing temperature reached, which must not be exceeded, so z. B. at the corner of a pile. If the annealing temperature is reached at this point, in turn, the pyrometer acts on one or more via a compensation controller Throttle valves, which throttle the amount of inflowing heating gases, so that the The annealing temperature inside the muffle is not exceeded.
Es handelt sich dann weiter nur noch um einen Ausgleich der Wärme innerhalb der Heizmuffel, und das Ende des Glühvorganges richtet sich entweder nach der erfahrungsmäßig festgesetzten Zeit oder nach der Angabe eines im Innern des Glühgutes angeordneten Kontrollpyrometers, welches anzeigt, daß der Glühvorgang bis dorthin fortgeschritten ist.It is then only a matter of balancing out the heat within the heating muffle, and the end of the annealing process depends on either the time determined by experience or according to the specification of a time within the Annealing material arranged control pyrometer, which shows that the annealing process until it progressed to that point.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES19876D DE911769C (en) | 1938-03-20 | 1938-03-20 | Automatic regulation for ovens with rooms with different temperatures |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES19876D DE911769C (en) | 1938-03-20 | 1938-03-20 | Automatic regulation for ovens with rooms with different temperatures |
Publications (1)
Publication Number | Publication Date |
---|---|
DE911769C true DE911769C (en) | 1954-05-20 |
Family
ID=7475969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES19876D Expired DE911769C (en) | 1938-03-20 | 1938-03-20 | Automatic regulation for ovens with rooms with different temperatures |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE911769C (en) |
-
1938
- 1938-03-20 DE DES19876D patent/DE911769C/en not_active Expired
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