DE1245042B - Waste heat recovery system for tunnel ovens - Google Patents

Waste heat recovery system for tunnel ovens

Info

Publication number
DE1245042B
DE1245042B DE1962F0036543 DEF0036543A DE1245042B DE 1245042 B DE1245042 B DE 1245042B DE 1962F0036543 DE1962F0036543 DE 1962F0036543 DE F0036543 A DEF0036543 A DE F0036543A DE 1245042 B DE1245042 B DE 1245042B
Authority
DE
Germany
Prior art keywords
waste heat
heat exchanger
circuit
heat recovery
recovery system
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
Application number
DE1962F0036543
Other languages
German (de)
Inventor
Heinz Behrens
Dr Gottfried Cremer
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.)
Fetok GmbH
Original Assignee
Fetok GmbH
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 Fetok GmbH filed Critical Fetok GmbH
Priority to DE1962F0036543 priority Critical patent/DE1245042B/en
Publication of DE1245042B publication Critical patent/DE1245042B/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
    • 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
    • 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
    • F27D9/00—Cooling of furnaces or of charges therein
    • F27D2009/007—Cooling of charges therein
    • F27D2009/0081—Cooling of charges therein the cooling medium being a fluid (other than a gas in direct or indirect contact with the charge)
    • F27D2009/0083—Cooling of charges therein the cooling medium being a fluid (other than a gas in direct or indirect contact with the charge) the fluid being water

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Description

Abwärmeverwertungsanlage für Tunnelöfen Die Erfindung bezieht sich auf Tunnelöfen und richtet sich insbesondere auf eine Abwärmeverwertungsanlage für Tunnelöfen mit regelbarer indirekter Kühlung durch eine Heißwasser-Kühlanlage, deren Abwärme an einen in einem selbständigen, von dem Kühlwasserkreislauf unabhängigen Kreislauf liegenden Verbraucher über einen Wärmeaustauscher abgegeben wird.Waste heat recovery plant for tunnel kilns The invention relates on tunnel kilns and is aimed in particular at a waste heat recovery plant for Tunnel ovens with controllable indirect cooling through a hot water cooling system, their Waste heat to one in an independent, independent of the cooling water circuit Consumer lying in the circuit is released via a heat exchanger.

Bei einer bekannten Anlage dieser Art erhält der Wärmeaastauscher jeweils unterschiedliche Wärmemengen vom Primärkreis, weil durch eine überbrückungsleitung der Kreis des Kühlerregisters im Tunnelofen mehr oder weniger stark kurzgeschlossen wird, um die Eintrittstemperatur des Kühlmittels auf einem Wert oberhalb des Taupunktes der Ofengase zu halte-..In a known system of this type, the heat exchanger receives different amounts of heat from the primary circuit because of a bypass line the circuit of the cooler register in the tunnel furnace more or less short-circuited is to bring the inlet temperature of the coolant to a value above the dew point to keep the furnace gases - ..

Dies bedingt aber, daß in den beiden Teilkreisen des Primärkreises Wasser unterschiedlicher Temperatur zirkuliert, das an der Einmündungsstelle der Überbrückungsleitung aufeinandertrifft. An dieser Stelle kann es dann zur Dampfbildung oder zu Wasserschlägen kommen, was für das gesamte Rohrleitungssystem schädlich ist.However, this requires that in the two partial circles of the primary circle Water of different temperatures circulates at the point where it flows into the Bridging line meets. At this point, steam can form or water hammers occur, which is detrimental to the entire pipeline system is.

Die Erfindung schlägt, ausgehend von der Erkenntnis dieser Mängel vor, den Primärkreis durch Regeleinrichtungen unbeeinflußt zu lassen und die Regelung im Wärmeaustauscher selbst vorzunehmen, d. h. die Leistung des Wärmeaustauschers regelbar zu machen.The invention proposes based on the recognition of these shortcomings before leaving the primary circuit unaffected by control devices and the regulation to be carried out in the heat exchanger itself, d. H. the performance of the heat exchanger to make controllable.

Auf diese Weise ist es möglich, durch Regelung des Wärmeaustauschers dafür Sorge zu tragen, daß im Kühlerregisterkreislauf die Temperatur des Wassers nicht unter einen vorbestimmten Wert sinkt, bei dem es zur Kondensationsbildung im Tunnelofen kommt.In this way it is possible by regulating the heat exchanger to ensure that the temperature of the water in the cooler register circuit does not fall below a predetermined value at which condensation forms comes in the tunnel oven.

Vorzugsweise wird der Wärmeaustauscher automatisch geregelt, und zwar entsprechend der Solltemperatur des wieder in das Kühlsystem des Tunnelofens zurückgeführten Kühlwassers - z. B. und vorzugsweise auf eine Temperatur von 130° - eingestellt.The heat exchanger is preferably controlled automatically, namely according to the setpoint temperature of the fed back into the cooling system of the tunnel kiln Cooling water - e.g. B. and preferably to a temperature of 130 ° - set.

Claims (2)

Patentansprüche: 1. Abwärmeverwertungsanlage für Tunnelöfen mit regelbarer indirekter Kühlung durch eine Heißwasser-Kühlanlage, deren Abwärme an einen in einem selbständigen, von dem Kühlwasserkreislauf unabhängigen Kreislauf liegenden Verbraucher über einen Wärmeaustauscher abgegeben wird, dadurch gekennzeichnet. daß die Leistung des Wärmeaustauschers regelbar ist. Claims: 1. Waste heat recovery system for tunnel kilns with adjustable indirect cooling through a hot water cooling system, whose waste heat is transferred to one in one independent circuit independent of the cooling water circuit is delivered via a heat exchanger, characterized. that performance of the heat exchanger is adjustable. 2. Anlage nach Anspruch 1, dadurch gekennzeichnet, daß der Wärmeaustauscher vorzugsweise automatisch so geregelt wird, daß die Temperatur des im Kreislauf dem Kühlsystem des Tunnelofens wieder zugeführten Wassers nicht unter 130° C absinkt. In Betracht gezogene Druckschriften: Deutsche Auslegeschrift Nr. 1057 948.2. Plant according to claim 1, characterized in that the heat exchanger is preferably automatically controlled so that the temperature of the water returned to the cooling system of the tunnel furnace in the circuit does not drop below 130 ° C. Documents considered: German Auslegeschrift No. 1057 948.
DE1962F0036543 1962-04-13 1962-04-13 Waste heat recovery system for tunnel ovens Pending DE1245042B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1962F0036543 DE1245042B (en) 1962-04-13 1962-04-13 Waste heat recovery system for tunnel ovens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1962F0036543 DE1245042B (en) 1962-04-13 1962-04-13 Waste heat recovery system for tunnel ovens

Publications (1)

Publication Number Publication Date
DE1245042B true DE1245042B (en) 1967-07-20

Family

ID=7096501

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1962F0036543 Pending DE1245042B (en) 1962-04-13 1962-04-13 Waste heat recovery system for tunnel ovens

Country Status (1)

Country Link
DE (1) DE1245042B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046994A1 (en) * 1980-08-28 1982-03-10 Buchtal GmbH Keramische Betriebe Roller hearth furnace
EP0046993A1 (en) * 1980-08-28 1982-03-10 Buchtal GmbH Keramische Betriebe Process for preventing reoxidation of fired goods in the cooling zone of a roller hearth furnace
DE3534447A1 (en) * 1984-09-28 1986-05-22 Karl-Heinz Dipl.-Ing.(FH) 8501 Schwanstetten Munzert Baking kiln
DE3546516C2 (en) * 1984-09-28 1990-04-19 Karl-Heinz Dipl.-Ing. Munzert (Fh), 8501 Schwanstetten, De Oven

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057948B (en) * 1957-03-01 1959-05-21 Schneider Rohrleitung Paul Furnace for firing ceramic goods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1057948B (en) * 1957-03-01 1959-05-21 Schneider Rohrleitung Paul Furnace for firing ceramic goods

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046994A1 (en) * 1980-08-28 1982-03-10 Buchtal GmbH Keramische Betriebe Roller hearth furnace
EP0046993A1 (en) * 1980-08-28 1982-03-10 Buchtal GmbH Keramische Betriebe Process for preventing reoxidation of fired goods in the cooling zone of a roller hearth furnace
WO1982000876A1 (en) * 1980-08-28 1982-03-18 Cremer G Cooling zone of a furnace,in particular of a roller furnace
DE3032450A1 (en) * 1980-08-28 1982-04-01 Schneider Gmbh & Co, 5020 Frechen COOLING ZONE FOR A FURNACE, PREFERABLY ROLLER
DE3534447A1 (en) * 1984-09-28 1986-05-22 Karl-Heinz Dipl.-Ing.(FH) 8501 Schwanstetten Munzert Baking kiln
DE3546516C2 (en) * 1984-09-28 1990-04-19 Karl-Heinz Dipl.-Ing. Munzert (Fh), 8501 Schwanstetten, De Oven

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