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WO1979000437A1 - Process and device for regenerating heat into chimneys,particularly in apartment chimneys - Google Patents

Process and device for regenerating heat into chimneys,particularly in apartment chimneys Download PDF

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Publication number
WO1979000437A1
WO1979000437A1 PCT/CH1978/000045 CH7800045W WO7900437A1 WO 1979000437 A1 WO1979000437 A1 WO 1979000437A1 CH 7800045 W CH7800045 W CH 7800045W WO 7900437 A1 WO7900437 A1 WO 7900437A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
chimneys
smoke
heated
air
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.)
Ceased
Application number
PCT/CH1978/000045
Other languages
German (de)
French (fr)
Inventor
H Lutz
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1979000437A1 publication Critical patent/WO1979000437A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
    • F24B1/188—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas  
    • F24B1/1885—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only
    • F24B1/1886—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas   the heat exchange medium being air only the heat exchanger comprising only tubular air ducts within the fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B1/00—Stoves or ranges
    • F24B1/18—Stoves with open fires, e.g. fireplaces
    • F24B1/183—Stoves with open fires, e.g. fireplaces with additional provisions for heating water

Definitions

  • the invention relates to a method with which the heat recovery from chimneys, in particular from chemical plants, is made possible. This also includes a device for carrying out the method.
  • Various methods and devices are known today with which the heat generated especially in fireplace fires can be better utilized.
  • Various types of heat exchanger systems are usually heated directly by the flames.
  • the heat exchanger systems known to date have the following disadvantages: 1. the efficiency is relatively small, 2. systems with good efficiency are very expensive in terms of space and money.
  • the invention is based on the task of recovering the energy lost by the chimney with an efficiency of approximately 100% with minimal design effort. This is achieved according to the invention in that the smoke-carrying duct of the chimney is brought into direct contact with a second duct running in parallel. Air is blown through this second channel in the direction opposite the smoke flow, which air sc rauc u ren en ana mmer me r warm. Air heated in the counterflow principle is fed to the system to be heated.
  • FIG. 1 shows a schematic cross section. Hot gases are generated in fire 1, which rise through chimney 2 and are conducted outside at 3. Cold fresh air is drawn in by the blower 4 and is conveyed through the duct 5 from top to bottom to the outlet opening 6. In the chimney 2 there is a warm gradient from the fire 1 to the outlet opening of the chimney 3 in that there are very high temperatures near the fire and lower temperatures at the outlet opening 3. In accordance with this gradient, the air which is blown from top to bottom through channel 5 is heated and extracts so much heat from the rising gases that ideally the smoke emerging at 3 has an outside temperature. The heat is controlled by switching the fan on and off. When the blower is switched off, the channel 5 can warm up again enough that previously condensed smoke components evaporate again.
  • FIG. 1 The principle shown in FIG. 1 can already be implemented during the construction of the chimney by suitable construction of the chimney elements to be stacked on top of one another. From Figure 2.
  • FIG. 2a shows a schematic cross section at the position of the element in FIG. 2b marked X-X.
  • Figure 2b shows the supervision of such an element.
  • the hot smoke rises in channel 1.
  • duct 3 the air to be heated is blown from top to bottom.
  • Cross connections 2 in a vertical or spiral arrangement between the channel walls la and 3a stabilize the channel 1 within the channel 3.
  • insulation material is referred to, which firmly connects the channel wall 3a with the outer wall of the element 5.
  • the surface and heat transfer can be increased by suitable shaping by using a particularly heat-conducting material (for example steel) in the construction of the wall la and the cross connections 2.
  • a suitable shaping of the upper and lower end edges of the channel 1 By means of a suitable shaping of the upper and lower end edges of the channel 1, a gas-tight connection between the individual elements can be achieved. Laying such elements on top of each other results in a chimney with a built-in heat exchanger.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Air Supply (AREA)

Abstract

Process and device allowing the recuperation of heat, in chimneys and particularly in apartment chimneys. This is achieved by bringing air to be heated, separated only by a wall (5) conducting the heat of the smoke inlet channel, in an anti-parallel direction with this channel to the room to be heated. The process can be carried out by post-assembly in an existing chimney or by a particular construction of elements used when installing such chimneys.

Description

Verfahren und Vorrichtung zur armeruckgewinnung aus Schornsteinen, im besonderen von Cheminee-Anlagen, BeschreibungMethod and device for recovering arms from chimneys, in particular from chemical plants, description

Die Erfindung betrifft ein Verfahren, mit welchem die Warmeruckgewinnung aus Schornsteinen, im besonderen von Cheminee-Anlagen ermöglicht wird. Im weiteren gehört dazu eine Vorrichtung zur Durchführung des Verfahrens. Es sind heute verschiedene Verfahren und Vorrichtungen bekannt, mit welchen die voralle in Cheminee-Feuern entstehende Warme besser ausgenutzt werden kann. Dabei werden Warmeaustauschersysteme verschiedenster Art in der Regel unmittelbar durch die Flammen erhitzt. Die bis heute bekannten Warmeaustauschersysteme weisen fol¬ gende Nachteile auf: 1. der Wirkungsgrad ist relative klein, 2. Systeme mit gutem Wirkungsgrad sind raumlich und finanziell sehr aufwendig.The invention relates to a method with which the heat recovery from chimneys, in particular from chemical plants, is made possible. This also includes a device for carrying out the method. Various methods and devices are known today with which the heat generated especially in fireplace fires can be better utilized. Various types of heat exchanger systems are usually heated directly by the flames. The heat exchanger systems known to date have the following disadvantages: 1. the efficiency is relatively small, 2. systems with good efficiency are very expensive in terms of space and money.

Der Erfindung liegt die Aufgabe zugrunde, die durch den Schornstein verlorengehende Energie mit einem Wirkungsgrad von annähernd 100% bei minimalem konstruktivem Aufwand zurück zu- gewinnen. Erfindungsgemass wird dies dadurch erreicht, dass der rauchfuhrende Kanal des Schornsteins in unmittelbaren Kontakt mit einem zweiten, paralell verlaufenden Kanal gebracht wird. Durch diesen zweiten Kanal wird in der dem Rauch¬ strom entgegengesetzten Richtung Luft geblasen, welche s c am rauc u ren en ana mmer me r erwärm . e m Gegenstromprinzip erwärmte Luft wird dem zu erwärmenden System zugeführt.The invention is based on the task of recovering the energy lost by the chimney with an efficiency of approximately 100% with minimal design effort. This is achieved according to the invention in that the smoke-carrying duct of the chimney is brought into direct contact with a second duct running in parallel. Air is blown through this second channel in the direction opposite the smoke flow, which air sc rauc u ren en ana mmer me r warm. Air heated in the counterflow principle is fed to the system to be heated.

Im folgenden werden anhand der beiliegenden Zeichnungen zwei Ausfuhrungsbeispiele der Erfindung naher beschrie¬ ben.Two exemplary embodiments of the invention are described in more detail below with reference to the accompanying drawings.

Figur 1 zeigt einen schematischen Querschnitt. Im Feuer 1 entstehen heisse Gase, welche durch den Schornstein 2 auf¬ steigen und bei 3 ins Freie geleitet werden. Durch das Geblase 4 wird kalte Frischluft angesogen und durch den Kanal 5 von oben nach unten zur Austrittsoffnung 6 be¬ fordert. Im Kamin 2 besteht vom Feuer 1 bis zur Aus¬ trittsoffnung des Schornsteins 3 ein Warmegradient indem nahe beim Feu¬ er sehr hohe, bei der Austrittsoffnung 3 geringere Tem¬ peraturen bestehen. Entsprechend diesem Gradienten er¬ wärmt sich nun die durch das Geblase von oben nach un¬ ten durch den Kanal 5 beforderte Luft und entzieht den aufsteigenden Gasen soviel Warme, dass im Idealfall der bei 3 austretende Rauch Aussentemperatur aufweist. Die Warmesteuerung erfolgt durch Ein- und Ausschalten des Geblases. Bei abgeschaltetem Geblase kann sich der Ka¬ nal 5 wieder soweit erwarmen, dass vorgangig kondensierte Rauchbestandteile wieder verdampfen.Figure 1 shows a schematic cross section. Hot gases are generated in fire 1, which rise through chimney 2 and are conducted outside at 3. Cold fresh air is drawn in by the blower 4 and is conveyed through the duct 5 from top to bottom to the outlet opening 6. In the chimney 2 there is a warm gradient from the fire 1 to the outlet opening of the chimney 3 in that there are very high temperatures near the fire and lower temperatures at the outlet opening 3. In accordance with this gradient, the air which is blown from top to bottom through channel 5 is heated and extracts so much heat from the rising gases that ideally the smoke emerging at 3 has an outside temperature. The heat is controlled by switching the fan on and off. When the blower is switched off, the channel 5 can warm up again enough that previously condensed smoke components evaporate again.

Das in Figur 1 gezeigte Prinzip kann schon beim Bau des Kamins durch geeignete Konstruktion der aufeinanderzu- schichtenden Schornsteinelemente realisiert werden. Aus Figur 2.The principle shown in FIG. 1 can already be implemented during the construction of the chimney by suitable construction of the chimney elements to be stacked on top of one another. From Figure 2.

- ξ_ EÄ OMPI ~~ ΪPO" ist der Aufbau solcher Schornsteinelemente naher ersichtlich. Figur 2a zeigt einen schematischen Querschnitt an der mit X—X gekennzeichneten Stelle des Elementes in Figur 2b. Fi¬ gur 2b zeigt die Aufsicht auf ein solches Element. Legen¬ de zu Figur 2: Im Kanal 1 steigt der heisse Rauch auf. Im Kanal 3 wird die zu erwärmende Luft von oben nach unten geblasen. Querverbindungen 2 in vertikaler oder sprialiger Anordnung zwischen den Kanalwanden la und 3a stabilisieren den Kanal 1 innerhalb des Kanals 3. Mit 4 ist Isolationsmaterial bezeichnet, welches die Kanalwand 3a mit der Aussenwand des Elementes 5 fest verbindet. Durch geeignete Formgebung durch Verwendung eines besonders wärmeleitenden Materials (zB. Stahl) bei der Konstruktion der Wand la und der Querverbindungen 2 lassen sich Oberflache und Wärmedurchgang vergrossern. Durch geeignete Formgebung der oberen und unteren Abschlusskanten des Kanals 1 lasst sich eine gasdichte Verbindung zwischen den einzelnen Elementen erzielen. Durch Aufeinanderschichten solcher Elemente ergibt sich ein Schornstein mit eingebautem Wärmeaustauscher.- ξ_ EÄ OMPI ~ ~ ΪPO " the structure of such chimney elements can be seen more closely. FIG. 2a shows a schematic cross section at the position of the element in FIG. 2b marked X-X. Figure 2b shows the supervision of such an element. Legend to Figure 2: The hot smoke rises in channel 1. In duct 3, the air to be heated is blown from top to bottom. Cross connections 2 in a vertical or spiral arrangement between the channel walls la and 3a stabilize the channel 1 within the channel 3. With 4, insulation material is referred to, which firmly connects the channel wall 3a with the outer wall of the element 5. The surface and heat transfer can be increased by suitable shaping by using a particularly heat-conducting material (for example steel) in the construction of the wall la and the cross connections 2. By means of a suitable shaping of the upper and lower end edges of the channel 1, a gas-tight connection between the individual elements can be achieved. Laying such elements on top of each other results in a chimney with a built-in heat exchanger.

Das hier beschriebene Verfahren fuhrt zu einem Wirkungsgrad, der Warmeruckgewinnung der auch in der Praxis nahe bei 100% liegen .kann. Insbesondere wenn die hier beschriebenen Elemente zum Bau eines Schornsteines verwendet werden, sind die finanziellen Aufwendungen minimal. The process described here leads to an efficiency which can be close to 100% in heat recovery, even in practice. In particular, if the elements described here are used to build a chimney, the financial expenditure is minimal.

Claims

Verfahren und Vorrichtung zur Warmeruckgewinnung aus Kaminen, im besonderen von Cheminde-Anlagen, Patentan¬ sprüchePatentansprüche Method and device for recovering heat from chimneys, in particular from Cheminde plants, patent claims 1. Verfahren zur Wärmerückgewinnung aus Kaminen, dadurch gekennzeichnet, dass die zu erwärmende Luft räuml ch vom rauchführenden Kanal des Kamins durch eine wärmeleitende Wand getrennt, entgegen der Stromrichtung des Rauches geführt wird, wodurch, entsprechend dem Wärmegradienten, dem Rauch die Wärme entzogen wird.1. A method for heat recovery from chimneys, characterized in that the air to be heated is separated from the chimney duct of the chimney by a heat-conducting wall, directed against the current direction of the smoke, whereby, according to the thermal gradient, the smoke is extracted from the smoke. 2. Neben diesem Patentanspruch wird ein zweiter^geltend ge¬ macht: Vorrichtung zur Durchführung des Verfahrens., dadurch gekennzeichnet, dass die im 1. Patentanspruch geforderte räumliche Trennung der beiden Kanäle durch geeignete Form¬ gebung und Konstruktion der einzelnen Kaminsteine erreicht w d.2. In addition to this claim a second ^ is submits ge: Apparatus for carrying out the method. , characterized in that the spatial separation of the two channels required in the first claim is achieved by suitable shaping and construction of the individual chimney stones w d. UnteransprücheSubclaims 1. Verfahren und Vorrichtung zur Durchführung des Verfahrens nach Patentanspruch 1 und 2, dadurch gekennzeichnet, dass die wärmeleitende Wand zwischen dem Kanal, der die zu erhitzende Luft führt, und demjenigen, der den Rauch abführt, durch geeignete Formgebung eine Oberflächenvergrösserung erfährt. 2. Verfahren und Vorrichtung nach Patentanspruch 1 und 2 sowie Unteranspruch 1 dadurch gekennzeichnet, dass die wärmeleitende Wand zwischen dem Kanal, der die zu erhitzende Luft führt und demjenigen, der den Rauch abführt, aus gut wärmeleitendem, korrosionssicherem Metall besteht, wobei wiederum durch geeignete Konstruktion und Formgestaltung eine Oberflä'chenvergrösserung und damit ein besserer Wärmeübergang erzielt wird.1. The method and device for performing the method according to claim 1 and 2, characterized in that the heat-conducting wall between the channel that carries the air to be heated and the one that discharges the smoke is given a surface enlargement by suitable shaping. 2. The method and device according to claim 1 and 2 and sub-claim 1, characterized in that the heat-conducting wall between the channel that carries the air to be heated and the one that discharges the smoke consists of good heat-conducting, corrosion-resistant metal, again by suitable chenvergrösserung construction and design of a Oberflä 'and thus a better heat transfer is achieved. 3. Verfahren und Vorrichtung nach Patentanspruch 1 und 2, dadurch gekennzeichnet, dass ausser Luft auch andere der Wärmeübertragung dienende Stoffe dem rauchführenden System Wärme entziehen.3. The method and device according to claim 1 and 2, characterized in that in addition to air, other heat transfer substances extract heat from the smoke-carrying system. 4. Verfahren und Vorrichtung nach Patentanspruch 1 und 2 und Unteransprüchen 1 bis 3, dadurch gekennzeichnet, dass die gewonnene Wärme nicht der Raumheizung, sondern der Energieumwandlung oder Energiespeicherung dient. 4. The method and device according to claim 1 and 2 and subclaims 1 to 3, characterized in that the heat obtained is not used for space heating, but for energy conversion or energy storage. Verfahren und Vorrichtung zur Warmeruckgewinnung ausMethod and device for heat recovery __•*__ • * Schornsteinen, im besonderen von Cheminee-Anlagen, Zusammen¬ fassungChimneys, in particular of chemical plants, summary Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zur Durchfuhrung des Verfahrens mit welchen die War eruck-The invention relates to a method and an apparatus for performing the method with which the goods are _* gewinnung aus Schornsteinen im besonderen von Cheminee-Anlagen mit hohem Wirkungsgrad ermöglicht wird. Dies wird dadurch erreicht, dass die zu erwärmende Luft-lediglich durch eine wärmeleitende Wand vom rauchfuhrenden Kanal getrennt-antiparallel zu diesem dem zu erwärmenden Räume zugeführt wird. Das Verfahren lasst sich nicht nur durch nachtraglichen Einbau in bestehende Schornsteine sondern besonders einfach durch geeignete Konstruktion des beim Bau solcher Schornsteine verwendenten Elemente realisieren._ * extraction from chimneys is made possible in particular by chemical plants with high efficiency. This is achieved in that the air to be heated — separated from the smoke-conducting duct only by a heat-conducting wall — is supplied antiparallel to the room to be heated. The method can be implemented not only by subsequent installation in existing chimneys, but particularly simply by suitable construction of the elements used in the construction of such chimneys. Gegenüber den bekannten Verfahren zur besseren WarmeausnutzungCompared to the known methods for better heat utilization -_» in Cheminee-Anlagen hat das hier beschriebene aufgrund der Patentansprüche zwei Vorteile: 1. es ist wesentlich billiger zu realisieren und 2. der Wirkungsgrad kann nahezu 100% betragen.-_ »In chemical plants, the one described here has two advantages based on the claims: 1. it is much cheaper to implement and 2. the efficiency can be almost 100%. Die Patentansprüche erstrecken sich auf das Verfahren und auf verschiedene Vorrichtungen zur Durchfuhrung des Verfahrens. The claims extend to the method and to various devices for performing the method.
PCT/CH1978/000045 1977-12-27 1978-12-05 Process and device for regenerating heat into chimneys,particularly in apartment chimneys Ceased WO1979000437A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1609677A CH628970A5 (en) 1977-12-27 1977-12-27 METHOD AND COMPONENT for recovering heat from FIREPLACES, IN PARTICULAR OF CHEMINEE PLANTS.
CH16096/77 1977-12-27

Publications (1)

Publication Number Publication Date
WO1979000437A1 true WO1979000437A1 (en) 1979-07-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1978/000045 Ceased WO1979000437A1 (en) 1977-12-27 1978-12-05 Process and device for regenerating heat into chimneys,particularly in apartment chimneys

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EP (1) EP0007316A1 (en)
CH (1) CH628970A5 (en)
WO (1) WO1979000437A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522127A1 (en) * 1982-02-19 1983-08-26 Stoebner Rodolphe DEVICE FOR RECOVERING THE HEAT OF COMBUSTION FUME FROM HEATING APPARATUS

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069855B (en) *
US1371390A (en) * 1919-11-07 1921-03-15 Jeremiah S Olds Heater
US2453954A (en) * 1944-08-10 1948-11-16 Harry T Wright Fireplace heating system
FR2271530A1 (en) * 1974-05-14 1975-12-12 Ledroff Sa Cheminees Richard Room heater rear mounted heat exchanger - has insulated walls and attachment to fix into smoke offtake of external chimney
FR2294403A1 (en) * 1974-12-12 1976-07-09 Lambert Jean Multiple heat exchanger appts. for wood fire - has ducts between hearth and hood with underfloor entry and discharge
FR2300870A1 (en) * 1975-02-17 1976-09-10 Homefire Holding Ag Hearth of open fire for room heating - has passages for draught and fresh and room air with separate inlets and common outlet
US4043313A (en) * 1976-01-15 1977-08-23 Sherman Larry P Fireplace chimney furnace

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069855B (en) *
US1371390A (en) * 1919-11-07 1921-03-15 Jeremiah S Olds Heater
US2453954A (en) * 1944-08-10 1948-11-16 Harry T Wright Fireplace heating system
FR2271530A1 (en) * 1974-05-14 1975-12-12 Ledroff Sa Cheminees Richard Room heater rear mounted heat exchanger - has insulated walls and attachment to fix into smoke offtake of external chimney
FR2294403A1 (en) * 1974-12-12 1976-07-09 Lambert Jean Multiple heat exchanger appts. for wood fire - has ducts between hearth and hood with underfloor entry and discharge
FR2300870A1 (en) * 1975-02-17 1976-09-10 Homefire Holding Ag Hearth of open fire for room heating - has passages for draught and fresh and room air with separate inlets and common outlet
US4043313A (en) * 1976-01-15 1977-08-23 Sherman Larry P Fireplace chimney furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2522127A1 (en) * 1982-02-19 1983-08-26 Stoebner Rodolphe DEVICE FOR RECOVERING THE HEAT OF COMBUSTION FUME FROM HEATING APPARATUS
EP0088710A1 (en) * 1982-02-19 1983-09-14 Rodolphe Stoebner Device for recovering heat from the smoke of heating installations

Also Published As

Publication number Publication date
EP0007316A1 (en) 1980-01-23
CH628970A5 (en) 1982-03-31

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