AT105152B - Heat exchange device. - Google Patents

Heat exchange device.

Info

Publication number
AT105152B
AT105152B AT105152DA AT105152B AT 105152 B AT105152 B AT 105152B AT 105152D A AT105152D A AT 105152DA AT 105152 B AT105152 B AT 105152B
Authority
AT
Austria
Prior art keywords
flow
heat exchange
exchange device
combustion gases
pipes
Prior art date
Application number
Other languages
German (de)
Inventor
Leo Ing Weiss
Original Assignee
Leo Ing Weiss
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 Leo Ing Weiss filed Critical Leo Ing Weiss
Application granted granted Critical
Publication of AT105152B publication Critical patent/AT105152B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1684—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
    • F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
    • F24H3/087—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/1615—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Wärmeaustanschvorrichtnng.   



   Die Erfindung bezieht sich auf einen insbesondere zur Erwärmung von Luft dienenden Wärme- austauscher, bei dem die Verbrennungsgase einer Gas-oder Kohlenfeuerung durch ein Röhrensystem geleitet werden und das zu erwärmende Mittel die Oberfläche dieses Röhrensystems bestreicht, somit eine mittelbare   Wärmeübertragung   stattfindet. Die Erfindung besteht im wesentlichen darin, dass sich ausser den von den Verbrennungsgasen durchflossenen Kanälen auch die von dem zu erwärmenden Mittel durchflossenen Kanäle in der   Strömungsrichtung   der Verbrennungsgase, deren Temperaturabnahme entsprechend, allmählich verengen. Die Verengung beider Kanalsysteme wird z.

   B. dadurch erreicht, dass in einem Gehäuse flache, sich in der Strömungsrichtung der Verbrennungsgase allmählich verengende
Rohre derart fächerartig angeordnet sind, dass die von dem zu erwärmenden Mittel durchflossenen Räume zwischen diesen Röhren in der Strömungsrichtung der Verbrennungsgase enger werden. 



   Fig. 1 der Zeichnung veranschaulicht einen derartigen Wärmeaustauscher im Längsschnitt, die Fig. 2 zeigt einen Schnitt nach der Linie 1-1 der Fig. 1. In einem Gehäuse a sind flache Rohre b von rechteckigem Querschnitt derart fächerförmig aneinandergereiht, dass ihr Abstand voneinander unten grösser ist als oben.. Die Rohre verengen sich auch selbst allmählich in der Strömungsrichtung der Verbrennungsgase. Unterhalb der Rohre b sind Gasbrenner c angeordnet, deren Verbrennungsprodukte die Rohre b durchziehen und durch das Abzugsrohr   i   austreten. Das zu erwärmende Mittel, z. B. Luft, tritt durch einen Stutzen   cl   in das Gehäuse a ein, zieht quer zur   Strömungsrichtung der Verbrennungsgase   durch die Räume g zwischen den Rohren b und tritt durch den   Rohrstutzen taus.   



   Um die die Wärme abgebenden   Metallflächen   zu vergrössern, sind in den von der Luft durchströmten Kanälen g Wellbleche h angeordnet, deren Rippen zur   Strömungsrichtung   der Luft parallel laufen und die breiten Seitenwände der Heizröhren b abstützen. Dadurch wird es zugleich ermöglicht, die Rohre b aus dünnerem Blech herzustellen. 



   Die Erfindung gewährt den Vorteil, dass die Strömungsquerschnitte für die Verbrennungsgase entsprechend deren Temperaturabnahme allmählich kleiner werden und dass an den heissesten Stellen der   Heizungsrohre   grössere Luftmengen vorbeigeführt werden als an den bereits abgekühlten Stellen. 



   PATENT-ANSPRÜCHE :
1.   Wärmeaustauschvorrichtung   mit mittelbarer   Wärmeübertragung, insbesondere für   die Erwärmung von Luft, dadurch gekennzeichnet, dass sieh die von dem zu erwärmenden Mittel durchflossenen Kanäle (g) in der   Strömungsrichtung   der Verbrennungsgase und daher entsprechend deren Temperaturabnahme allmählich verengen, so dass an den heissesten Stellen der Heizungsrohre grössere Luftmengen vorbeigeführt werden, als an den bereits abgekühlten Stellen. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Heat exchange device.



   The invention relates to a heat exchanger which is used in particular for heating air, in which the combustion gases from a gas or coal furnace are passed through a pipe system and the agent to be heated brushes the surface of this pipe system, so that an indirect heat transfer takes place. The invention essentially consists in that, in addition to the channels through which the combustion gases flow, the channels through which the agent to be heated flows gradually narrow in the direction of flow of the combustion gases, their temperature decrease accordingly. The narrowing of both channel systems is z.

   B. achieved in that in a housing flat, gradually narrowing in the flow direction of the combustion gases
Pipes are arranged like a fan in such a way that the spaces through which the medium to be heated flows between these pipes become narrower in the flow direction of the combustion gases.



   Fig. 1 of the drawing illustrates such a heat exchanger in longitudinal section, Fig. 2 shows a section along the line 1-1 of Fig. 1. In a housing a, flat tubes b of rectangular cross-section are lined up in a fan shape that their distance from one another below is larger than above .. The pipes also gradually narrow themselves in the direction of flow of the combustion gases. Gas burners c are arranged below the pipes b, the combustion products of which pass through the pipes b and exit through the exhaust pipe i. The agent to be heated, e.g. B. air, enters the housing a through a nozzle cl, pulls transversely to the flow direction of the combustion gases through the spaces g between the pipes b and passes through the pipe socket tau.



   In order to enlarge the metal surfaces emitting the heat, corrugated metal sheets h are arranged in the channels g through which the air flows, the ribs of which run parallel to the direction of flow of the air and support the wide side walls of the heating tubes b. This also makes it possible to manufacture the tubes b from thinner sheet metal.



   The invention affords the advantage that the flow cross-sections for the combustion gases gradually become smaller in accordance with their temperature decrease and that larger amounts of air are conducted past the hottest points of the heating pipes than the points that have already cooled down.



   PATENT CLAIMS:
1. Heat exchange device with indirect heat transfer, in particular for heating air, characterized in that the channels (g) through which the agent to be heated flows gradually narrow in the direction of flow of the combustion gases and therefore according to their temperature decrease, so that at the hottest points the Heating pipes have to pass larger amounts of air than the areas that have already cooled down.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

2. Wärmeaustauschvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass in einem Gehäuse (a) flache, sich in der Strömungsrichtung der Heizgase verengende Rohre (b) fächerförmig angeordnet sind, so dass sich die Zwischenräume (g) zwischen diesen Rohren in der Strömungsrichtung der Gase verengen. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. 2. Heat exchange device according to claim 1, characterized in that in a housing (a) flat tubes (b) narrowing in the direction of flow of the heating gases are arranged in a fan shape, so that the spaces (g) between these tubes are in the direction of flow of the gases narrow. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT105152D 1925-03-20 1925-03-20 Heat exchange device. AT105152B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT105152T 1925-03-20

Publications (1)

Publication Number Publication Date
AT105152B true AT105152B (en) 1927-01-10

Family

ID=3622880

Family Applications (1)

Application Number Title Priority Date Filing Date
AT105152D AT105152B (en) 1925-03-20 1925-03-20 Heat exchange device.

Country Status (1)

Country Link
AT (1) AT105152B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2556632A (en) * 1948-08-05 1951-06-12 William L Powell Radiator
DE835007C (en) * 1939-07-25 1952-03-27 Bergedorfer Eisenwerk A G Astr Device for temperature control of protein-containing nutrient fluids, especially milk in flow-through apparatus
US2613920A (en) * 1949-12-14 1952-10-14 Borg Warner Heat exchanger
US5002123A (en) * 1989-04-20 1991-03-26 Microelectronics And Computer Technology Corporation Low pressure high heat transfer fluid heat exchanger
US5409675A (en) * 1994-04-22 1995-04-25 Narayanan; Swami Hydrocarbon pyrolysis reactor with reduced pressure drop and increased olefin yield and selectivity
NL2011539C2 (en) * 2013-10-02 2015-04-07 Intergas Heating Assets B V HEAT EXCHANGER WITH A PIPE WITH AN ALTHANS PARTIALLY VARIABLE SECTION.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE835007C (en) * 1939-07-25 1952-03-27 Bergedorfer Eisenwerk A G Astr Device for temperature control of protein-containing nutrient fluids, especially milk in flow-through apparatus
US2556632A (en) * 1948-08-05 1951-06-12 William L Powell Radiator
US2613920A (en) * 1949-12-14 1952-10-14 Borg Warner Heat exchanger
US5002123A (en) * 1989-04-20 1991-03-26 Microelectronics And Computer Technology Corporation Low pressure high heat transfer fluid heat exchanger
US5409675A (en) * 1994-04-22 1995-04-25 Narayanan; Swami Hydrocarbon pyrolysis reactor with reduced pressure drop and increased olefin yield and selectivity
NL2011539C2 (en) * 2013-10-02 2015-04-07 Intergas Heating Assets B V HEAT EXCHANGER WITH A PIPE WITH AN ALTHANS PARTIALLY VARIABLE SECTION.
WO2015050441A1 (en) * 2013-10-02 2015-04-09 Intergas Heating Assets B.V. Tube for a heat exchanger with an at least partially variable cross-section, and heat exchanger equipped therewith
US10760857B2 (en) 2013-10-02 2020-09-01 Intergas Heating Assets B.V. Tube for a heat exchanger with an at least partially variable cross-section, and heat exchanger equipped therewith

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