DE1961287A1 - Device to improve the heat transfer in systems consisting of a combustion chamber and a heat exchanger - Google Patents

Device to improve the heat transfer in systems consisting of a combustion chamber and a heat exchanger

Info

Publication number
DE1961287A1
DE1961287A1 DE19691961287 DE1961287A DE1961287A1 DE 1961287 A1 DE1961287 A1 DE 1961287A1 DE 19691961287 DE19691961287 DE 19691961287 DE 1961287 A DE1961287 A DE 1961287A DE 1961287 A1 DE1961287 A1 DE 1961287A1
Authority
DE
Germany
Prior art keywords
heat
combustion chamber
heat transfer
heat exchanger
improve
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.)
Granted
Application number
DE19691961287
Other languages
German (de)
Other versions
DE1961287B2 (en
DE1961287C3 (en
Inventor
Siegfried Dr-Ing Kofink
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.)
Eberspaecher Climate Control Systems GmbH and Co KG
Original Assignee
J Eberspaecher GmbH and Co KG
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 J Eberspaecher GmbH and Co KG filed Critical J Eberspaecher GmbH and Co KG
Priority to DE19691961287 priority Critical patent/DE1961287C3/en
Priority to FR7042489A priority patent/FR2072440A5/fr
Priority to CA099,867A priority patent/CA947600A/en
Priority to SE1654270A priority patent/SE384263B/en
Publication of DE1961287A1 publication Critical patent/DE1961287A1/en
Publication of DE1961287B2 publication Critical patent/DE1961287B2/en
Application granted granted Critical
Publication of DE1961287C3 publication Critical patent/DE1961287C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2209—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating an intermediate liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2203—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners
    • B60H1/2212—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from burners arrangements of burners for heating air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • 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
    • F24H3/065—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators using fluid fuel
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H2001/2268—Constructional features
    • B60H2001/2271—Heat exchangers, burners, ignition devices

Description

Einrichtung zur Vc rb es se rung der Wärmeübertragung bei aus Brennkammer und Wärmetauscher b stehenden Systemen.Device for increasing the heat transfer with from combustion chamber and heat exchanger b standing systems.

Die Erfindung betrifft eine Einrichtung zur Verbesserung der Wärmeüb-jr ragung bei aus rennkammer und Wärmetauscher bestehenden Systemen, insbesondere fr Heizgeräte mit eigener Ileizquelle, wie sie z. B. als Standheizung für Fahrzeuge bekannt geworden sind»The invention relates to a device for improving the heat transfer Excellent for systems consisting of a combustion chamber and a heat exchanger, especially for heaters with their own source of ignition, such as she z. B. have become known as auxiliary heating for vehicles »

Es sind bereits Heizgeräte bekannt, bei denen der Wärmetauscher konzentrisch um den Ileizraum angeordnet ist. Diese Anordnungen ermöglichen jedoch nur eine geringe Wärmebelastung pro Flächeneinheit, wobei außerdem die Wärmebelastung über die Cesamtfläche nicht gleichmäßig ist. Diese bekannten Heizgeräte haben daher nur einen niedrigen Wirkungsgrad.There are already known heaters in which the heat exchanger is arranged concentrically around the ileum space. These arrangements however, allow only a low heat load per unit area, and the heat load over the total area is not even. These known heating devices therefore only have a low degree of efficiency.

Der Erfindung liegt die Aufgabe zugrunde, ein Hochleistungswärmeubcrtragungssystem zu schaffen, bei welchem die Wärme über die ganze Länge der Brennkammer bzw. des Wärmetauschers gleichmäßig verteilt ,.ist, d. h., bei dem die Tempert turdifferen^ über der Länge des Wärmeübertragungssystems praktisch gleich Null ist.The invention is based on the object of a high-performance heat transfer system to create at which the heat over the entire length of the combustion chamber or the heat exchanger evenly distributed, .is, d. i.e., at which the Tempert turdifferen ^ above the Length of the heat transfer system is practically zero.

Die Lösung der vorgenannten Aufgabe führt zu einer Einrichtung, die dadurch gekennzeichnet ist, daß die die Wärmequelle umρebende l/äraeübertragungsfläche , ei. k., die Brennkammerwand, als '.'ärmerinprohr ausgebildet ist. Dabei ist unter einem Wärmenngrohr ein . ingrohr zu verstehen, dessen Innenraum evakuiert und mit einem Geflecht - vorzugsweise einem metallischen Geflecht sowie einer verdampfbaren Flüssigkeit gefüllt ist. Derartige Wärmer!ngrobre weisen ein Wärmeleitvermögen auf, welches 10 10 mil so groß ist, wie das des Kupfers, Mit einer derartigen erfindungsgemäßen An '^ung wird erreicht, daß die erzeugte '/arme unmittelbar und ohne nennenswerten Temperaturabfall auf die Wärmeüberteagungsfläche und von dort in gleicher V/eise auf das "r'/ämieübertragungsmediuin übertragen wird. fcine weitere zweckmäßige Ausgestaltung der erfindungsgemäßen Einrichtung ist dadurch gekennzeichnet, daß die Uärmeübertragunpsflacht uiiinU:j>tens teilweise mit indirekten Heizflächen verseilen ist. Mit dies., r Anordnung wird durch die Vergrößerung der Wärmeübertragung fläche erreicht, daß eine weitere Lrhöhung des Wir-The solution to the aforementioned problem leads to a facility which is characterized in that the surrounding the heat source l / era transfer area, ei. k., the combustion chamber wall, as '.'armed tubing is formed. It is under a warming pipe a . ingrohr, whose interior is evacuated and is filled with a braid - preferably a metallic braid and a vaporizable liquid. Such Warmer coars have a thermal conductivity that is 10 10 mil is as big as that of copper, with such a size inventive approach is achieved that the generated '/ poor directly and without any significant temperature drop to the heat transfer surface and from there in the same way to the "r '/ emia transmission medium is transmitted. Another useful embodiment of the device according to the invention is characterized in that the heat transfer flat uiiinU: j> at least partially strand with indirect heating surfaces is. With this., R arrangement is made by increasing the heat transfer area reached that a further increase in the

109827/0832 Bad 109827/0832 bath

^ 1120 I)^ 1120 I)

kuny.sgrades zustandekommt» Dabei können die indirekten HeizfläcLeu sowohl an der der Wärmequelle zugewandten als auch an der abgewandten FläCi. oder auch an beiden Flächen angeordnet sein. Weiterhin hat sich als zweckmäßig herausgestellt, daß die indirekten Heizflächen selbst wiederum als Wärmerohre ausgebildet sind. Durch diese Weiterbildung der Erfindung wird erreicht, daß die indirekten Heizflächen voll zur Wärmeübertragung herangezogen werden können. Auch hiermit ist eine wesentliche Verbesserun?, des Wirkungsgrudes verbunden. Es ergibt sich somit im Ganzen ein Wärmetauscher mit hohem Wirkungsgrad von geringer Raügröfte. Dabei wird durch die Verwendung eines Wärmeringrohres als Wärmetauschermantel die Wurme an der Oberfläche des Wärmetauschers gleichmäßig verteilt, sodaß eine sehr intensive Wärmeabgäbe pro Flächeneinheit erzielt wird. Der hohe Wirkungsgrad kommtkuny.sgrades comes about »The indirect heating surfaces can both on the surface facing the heat source and on the surface facing away. or be arranged on both surfaces. Furthermore, it has been found to be useful that the indirect Heating surfaces themselves are in turn designed as heat pipes. This development of the invention achieves that the indirect heating surfaces can be fully used for heat transfer. This is also a major improvement, of the degree of effectiveness connected. It thus arises as a whole a heat exchanger with a high degree of efficiency and low room volume. By using a heat ring pipe as a heat exchanger jacket, the worm is attached to the surface of the heat exchanger evenly distributed so that a very intensive heat emission per unit area is achieved. The high efficiency is coming

" durch die mögliche sehr hohe Wärmebelastung pro Flächeneinheit zustande."due to the possible very high heat load per unit area conditions.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung vereinfacht und schematisch in Gestalt eines Ilochleistungswftrmct aus ehe rs für Kraft fahrzeugst amiheiztv ^ dargestellt. In der Brennkammer (1)» der sich eine Hachbrennkammer (2) anschließt, und die von einem Wärmeringrohr (T) als Brennknmmerwand umgeben ist, verbrennt der bei der Zündeinrichtung f4) cintreterKu. Brennstoff mit der über das Ileizluftgebläse (3) angesaugten Luft. Hie Abgase gelangen ii. dir V,r.c]ihrt:i\i\\:ivi>.nvr (2) und werden beim Austritt aus dieser umgelenkt und an den indirekten Heizflächen (5) vorbeigeführt, um die Brennkammer (1) sodann über den Auslaßstutzen (6) zu verlassen. Hie indirekten Heizflächen (5) sind Bestandteil der als Wärmeringrohr (7) ausgebildeten Brennkammerwand ebenso wie deren Boden (B) der zugleich die Umleitung der Heizgase bewirkt. An der Außenfläche des Wärmoringrohres (7) sind weitere indirekte Heizflächen C9) angeordnet. Die Heizluft tritt durch don P. in ρ raum (10) ein, wird an dem Wärmeringrohr (7) und den iiu" '^kton I.'ei zfliichen (D) vorbeigeführt und vorläßt die Heizung über den StutzonCll). Die indirekten Heizflächen (5) bzw. (9) können dabei in gleicher V'eise wie das Wärmeringrohr aufgebaut sein, d. h., daß ein mit einer vordampfbnren Flüssigkeit g€ vktes Geflecht in den evakuierten Innenraum der Heizflächen eingebracht ist. Die Verbindung I1Or indirekten Heizflachen mit dem Wärmeringrohr (7) kann durchIn the drawing, an embodiment of the invention is simplified and shown schematically in the form of an Ilochleistungswftrmct from before rs for motor vehicles amiheiztv ^. In the combustion chamber (1), which is adjoined by a top combustion chamber (2), and which is surrounded by a heat ring tube (T) as a combustion chamber wall, the cintreterKu burns at the ignition device f4). Fuel with the air drawn in via the air blower (3). Exhaust gases get here ii. dir V, rc] you: i \ i \\: ivi> .nvr (2) and are deflected when exiting from this and are guided past the indirect heating surfaces (5), then around the combustion chamber (1) via the outlet connection (6) to leave. The indirect heating surfaces (5) are part of the combustion chamber wall, which is designed as a heat ring tube (7), as is its base (B), which at the same time causes the heating gases to be diverted. Further indirect heating surfaces C9) are arranged on the outer surface of the heating ring tube (7). The heating air enters through the room (10), is led past the heating ring pipe (7) and the space (D) and allows the heating to flow through the pipe. The indirect heating surfaces (5) or (9) may be in the same V'eise as the heat ring tube be constructed, that is, a with a vordampfbnren liquid g € vktes braid into the evacuated interior of the heating surfaces is introduced. the compound I 1 or indirect heating surfaces with the heat ring pipe (7) can through

109827/0632109827/0632

BAD ORiGfNAtBAD ORiGfNAt

* 1120 D* 1120 D

18612871861287

Se«vi( ißung erfolgen. Selbst wenn aus Fertigungsgründen auf die Anbringung von als »Värmerohrc ausgebildete indirekte Heizflächen verzichtet wird, ist infolge der Ausgestaltung der Brennkammerwand als Wärmeringrohr eine erhebliche Wirkungsgradsteigerung möglich.Se «vi (ed. Even if, for manufacturing reasons, the Attachment of indirect heating surfaces designed as »heating pipes is dispensed with, a considerable increase in efficiency is due to the design of the combustion chamber wall as a heat ring tube possible.

109827/0632 BADORiGiNAL109827/0632 BADORiGiNAL

Claims (2)

1120 D1120 D PatentansprücheClaims zur Verbesserung der V/ärraeübertragung bei aus
Brennkammer und Wärmetauscher bestehenden Systemen, insbesondere für Heizgeräte mit eigener Heizquelle, dadurch gekennzeichnet» daß die die Wärmequelle umgebende Itiirmeübertragungsfläche als Wäreeringrohr ausgebildet ist.to improve the transmission of information from
Combustion chamber and heat exchanger existing systems, in particular for heaters with their own heat source, characterized in that the heat transfer surface surrounding the heat source is designed as a heat ring tube. 2. Einrichtung nach Anspruch I9 dadurch gekennzeichnet, daß die Wärraeübertragungsfläche mindestens teilweise mit indirekten Heizflächen versehen ist.2. Device according to claim I 9, characterized in that the heat transfer surface is at least partially provided with indirect heating surfaces. 3» Einrichtung nach Anpruch 1 oder 2, dadurch gekennzeichnet, daß de indirekten Heizflächen selbrt als Wäraierohre ausgebildet sird.3 »Device according to claim 1 or 2, characterized in that that de indirect heating surfaces are designed as Wäraierrohre sird. 109827/0632109827/0632 BAD ORiGiNALBAD ORiGiNAL
DE19691961287 1969-12-06 1969-12-06 Device for improving the heat transfer in heating devices with combustion chambers and heat exchangers, in particular for vehicle heaters Expired DE1961287C3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19691961287 DE1961287C3 (en) 1969-12-06 1969-12-06 Device for improving the heat transfer in heating devices with combustion chambers and heat exchangers, in particular for vehicle heaters
FR7042489A FR2072440A5 (en) 1969-12-06 1970-11-26
CA099,867A CA947600A (en) 1969-12-06 1970-12-04 Arrangement for improving the heat transfer of heating appliances
SE1654270A SE384263B (en) 1969-12-06 1970-12-07 DEVICE FOR IMPROVING THE HEAT TRANSFER IN THE FIRE OF CHAMBER CHAMBER AND HEAT EXCHANGER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691961287 DE1961287C3 (en) 1969-12-06 1969-12-06 Device for improving the heat transfer in heating devices with combustion chambers and heat exchangers, in particular for vehicle heaters

Publications (3)

Publication Number Publication Date
DE1961287A1 true DE1961287A1 (en) 1971-07-01
DE1961287B2 DE1961287B2 (en) 1973-10-18
DE1961287C3 DE1961287C3 (en) 1974-05-16

Family

ID=5753187

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691961287 Expired DE1961287C3 (en) 1969-12-06 1969-12-06 Device for improving the heat transfer in heating devices with combustion chambers and heat exchangers, in particular for vehicle heaters

Country Status (4)

Country Link
CA (1) CA947600A (en)
DE (1) DE1961287C3 (en)
FR (1) FR2072440A5 (en)
SE (1) SE384263B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606888A1 (en) * 1986-03-03 1987-09-10 Norbert Garich TRANSPORTABLE PROTECTIVE HOUSE
DE4339045A1 (en) * 1993-11-16 1995-05-18 Knoll Anlagenbau Gmbh Air heater for drying grain and cereal prods.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606888A1 (en) * 1986-03-03 1987-09-10 Norbert Garich TRANSPORTABLE PROTECTIVE HOUSE
DE4339045A1 (en) * 1993-11-16 1995-05-18 Knoll Anlagenbau Gmbh Air heater for drying grain and cereal prods.

Also Published As

Publication number Publication date
FR2072440A5 (en) 1971-09-24
CA947600A (en) 1974-05-21
DE1961287B2 (en) 1973-10-18
DE1961287C3 (en) 1974-05-16
SE384263B (en) 1976-04-26

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
EHJ Ceased/non-payment of the annual fee