AT343320B - HEAT EXCHANGER FOR LIQUIDS - Google Patents
HEAT EXCHANGER FOR LIQUIDSInfo
- Publication number
- AT343320B AT343320B AT57276A AT57276A AT343320B AT 343320 B AT343320 B AT 343320B AT 57276 A AT57276 A AT 57276A AT 57276 A AT57276 A AT 57276A AT 343320 B AT343320 B AT 343320B
- Authority
- AT
- Austria
- Prior art keywords
- heat
- heat exchanger
- tube
- cross
- liquids
- Prior art date
Links
- 239000007788 liquid Substances 0.000 title claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000005476 soldering Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
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
- F28D7/02—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 helically coiled
- F28D7/024—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 helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
- F24D3/087—Tap water heat exchangers specially adapted therefore
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Geometry (AREA)
- Details Of Fluid Heaters (AREA)
Description
<Desc/Clms Page number 1>
Den Gegenstand der Erfindung bildet ein Wärmetauscher für Flüssigkeiten, bei dem die beiden Medien in Rohren geführt sind, das wärmeaufnehmende Rohr schraubenförmig um das wärmeabgebende Rohr gewickelt und mit diesem gut wärmeleitend, z. B. mittels Lötung verbunden ist und das wärmeabgebende Rohr an der Innenseite vorspringende Längsrippen und einen zentralen Verdrängungskörper besitzt.
Solche Wärmetauscher werden z. B. in gasbeheizten Zentralheizungskesseln nach Art von Durchlauferhitzer dazu benutzt, um das im Haushalt benötigte Heisswasser rasch zu erzeugen. Im Winter bildet dies keine Schwierigkeit, weil das in die Radiatoren fliessende Heisswasser zur Verfügung steht. Im Sommer jedoch dauert es geraume Zeit, bis der Leitungsabschnitt, der als Wärmeaustauscher zur Erzeugung von heissem Brauchwasser ausgebildet ist, von ausreichend heissem Wasser durchflossen ist.
Der Erfindung liegt die Aufgabe zugrunde, einen Wärmetauscher der eingangs angeführten Art zu schaffen, der heisses Brauchwasser möglichst rasch zu erzeugen imstande ist. Erfindungsgemäss wird dies
EMI1.1
begrenzt ist und an dieser Seite mit dem warmeabgebenden Rohr wärmeleitend verbunden ist. Das wärmeaufnehmende Rohr kann hiezu einen Querschnitt in Form eines Dreieckes, eines Halbkreises, eines Trapezes, eines Rechtecks, einer Halbellipse od. dgl. besitzen.
Nachstehend ist an Hand der Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. Es zeigen : Fig. 1 das Schaltschema einer gasbeheizten Zentralheizungsanlage mit einem Heizkreis und einem
EMI1.2
einen Querschnitt durch das Wärmetauschelement und die Fig. 4 fünf verschiedene Querschnitte des wärmeaufnehmenden Rohres.
In Fig. 1 sieht man einen mittels Gasbrenner --1-- beheizten Durchlauferhitzer --2--, der einen Heizwasserkreis --3-- speist. Vom Durchlauferhitzer --2-- geht die Vorlaufleitung über ein Klappenventil
EMI1.3
--5-- undDurchlauferhitzer --2-- zurück. Ein zweiter Kreis --8-- zweigt beim Klappenventil --4-- ab und führt über einen Wärmetauscher --9-- zur Rücklaufleitung --6--. Der den Wärmetauscher --9-- enthaltende Kreis wird nur eingeschaltet, wenn man heisses Wasser entnehmen will, wobei das zu erwärmende Wasser über den AnschluE-KW-- in den Wärmetauscher eintritt und diesen über den AnschluB-WW--wieder verlässt.
Der Wärmetauscher besteht aus einem wärmeabgebenden Kupferrohr --10-- mit an der Innenseite in
EMI1.4
eine verhältnismässig grosse W rmeaufnahmsfl che im Inneren des wärmeabgebenden Rohres --10--.
Um einen optimalen Wärmeübergang zu erzielen, besitzt das wärmeaufnehmende Rohr --11-- einen Querschnitt, der an einer Seite --15-- geradlinig begrenzt ist. Die ebenflächige Seite --15-- des wärmeaufnehmenden Rohres --11-- bildet im aufgewickelten Zustand eine zylindrische Fläche, die zur Gänze satt am äusseren Umfang des warmeabgebenden Rohres --10-- anliegt und an diesem angelötet ist.
Verschiedene mögliche Querschnittsformen des wärmeaufnehmenden Rohres --11-- sind in der Fig. 4 dargestellt. Wie daraus ersichtlich ist, kann der Rohrquerschnitt z. B. dreieckige, halbrunde, trapezförmige, rechteckige oder halbelliptische Form besitzen. Natürlich sind auch andere Querschnittsformen möglich.
Durch die grosse, infolge der besonderen Ausgestaltung des wärmeabgebenden Rohres --10-- erzielte Wärmeübergangsfläche und das satte Anliegen des wärmeaufnehmenden Kupferrohres --11-- am wärmeabgebenden Rohr --10-- wird der optimale Effekt eines solchen Wärmetauschers erzielt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
The object of the invention is a heat exchanger for liquids in which the two media are guided in tubes, the heat-absorbing tube is helically wound around the heat-emitting tube and with this good thermal conductivity, eg. B. is connected by soldering and the heat-emitting tube on the inside has protruding longitudinal ribs and a central displacement body.
Such heat exchangers are z. B. used in gas-fired central heating boilers on the type of water heater to quickly generate the hot water required in the household. In winter this is not a problem because the hot water flowing into the radiators is available. In summer, however, it takes a long time until the line section, which is designed as a heat exchanger for generating hot service water, is traversed by sufficiently hot water.
The invention is based on the object of creating a heat exchanger of the type mentioned at the beginning which is capable of producing hot service water as quickly as possible. According to the invention this is
EMI1.1
is limited and is connected to the heat dissipating tube on this side in a thermally conductive manner. For this purpose, the heat-absorbing tube can have a cross section in the form of a triangle, a semicircle, a trapezoid, a rectangle, a semi-ellipse or the like.
An exemplary embodiment of the invention is explained in more detail below with reference to the drawings. 1 shows the circuit diagram of a gas-heated central heating system with one heating circuit and one
EMI1.2
a cross section through the heat exchange element and FIG. 4 five different cross sections of the heat-absorbing tube.
In Fig. 1 you can see an instantaneous water heater --2-- heated by a gas burner --1--, which feeds a heating water circuit --3--. The flow line goes from the flow heater --2-- via a flap valve
EMI1.3
--5-- and instantaneous water heater --2-- back. A second circuit --8-- branches off at the flap valve --4-- and leads via a heat exchanger --9-- to the return line --6--. The circuit containing the heat exchanger --9-- is only switched on when hot water is to be drawn off, whereby the water to be heated enters the heat exchanger via the connection E-KW and leaves it again via the connection B-DHW.
The heat exchanger consists of a heat-emitting copper pipe --10-- with in on the inside
EMI1.4
a relatively large heat-absorbing surface inside the heat-emitting pipe --10--.
In order to achieve optimal heat transfer, the heat-absorbing pipe --11-- has a cross-section that is delimited in a straight line on one side --15-- The flat side --15-- of the heat-absorbing tube --11-- forms a cylindrical surface in the rolled-up state, which lies fully against the outer circumference of the heat-emitting tube --10-- and is soldered to it.
Various possible cross-sectional shapes of the heat-absorbing tube -11- are shown in FIG. As can be seen from this, the pipe cross-section can e.g. B. triangular, semicircular, trapezoidal, rectangular or semi-elliptical shape. Of course, other cross-sectional shapes are also possible.
The large heat transfer surface achieved as a result of the special design of the heat-emitting pipe --10-- and the close contact of the heat-absorbing copper pipe --11-- with the heat-emitting pipe --10-- achieve the optimum effect of such a heat exchanger.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT57276A AT343320B (en) | 1976-01-28 | 1976-01-28 | HEAT EXCHANGER FOR LIQUIDS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT57276A AT343320B (en) | 1976-01-28 | 1976-01-28 | HEAT EXCHANGER FOR LIQUIDS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA57276A ATA57276A (en) | 1977-02-15 |
| AT343320B true AT343320B (en) | 1978-05-26 |
Family
ID=3494153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT57276A AT343320B (en) | 1976-01-28 | 1976-01-28 | HEAT EXCHANGER FOR LIQUIDS |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT343320B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2441821A1 (en) * | 1978-11-15 | 1980-06-13 | Collard Et A Trolart Sa G | Parallel heat exchanger tubes - have liquids circulating in opposite directions and are held apart by welded longitudinal web |
| EP0870994A3 (en) * | 1997-04-09 | 2000-06-21 | Robert Bosch Gmbh | Expansion vessel for a heating installation with a heat exchanger for sanitary water production |
-
1976
- 1976-01-28 AT AT57276A patent/AT343320B/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2441821A1 (en) * | 1978-11-15 | 1980-06-13 | Collard Et A Trolart Sa G | Parallel heat exchanger tubes - have liquids circulating in opposite directions and are held apart by welded longitudinal web |
| EP0870994A3 (en) * | 1997-04-09 | 2000-06-21 | Robert Bosch Gmbh | Expansion vessel for a heating installation with a heat exchanger for sanitary water production |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA57276A (en) | 1977-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2530075A1 (en) | ELECTRIC RADIATOR FOR GAS MEDIA | |
| AT411395B (en) | Heat Exchanger | |
| DE2433790A1 (en) | Immersion medium heating rod - has immersible heat emitting zone and outer heat absorbing zone | |
| EP1140215B1 (en) | Device for the thermal sterilization of liquids | |
| DE102006036802A1 (en) | Heater for hot drinks machine, comprises U-shaped heater tube welded to surrounding, helical stainless steel water pipe and cast into aluminum block | |
| DE1975794U (en) | ELECTRIC RUNNING HEATER. | |
| DE1615382C3 (en) | Electric water heater | |
| DE689856C (en) | Drum heater for milk and similar liquids | |
| AT387092B (en) | Device for heating a heat carrier (heat bearing agent, heat-conveying medium) for a heater circuit, and for heating service water with the aid of a heating medium | |
| AT96309B (en) | Electrically heated liquid heater. | |
| DE319404C (en) | Rib heating or cooling device | |
| DE3249924C2 (en) | Heating element with cylindrical wall | |
| DE1271854B (en) | Electric instant water heater | |
| DE2921530C2 (en) | Heating boiler with a heating water jacket | |
| AT373058B (en) | HEAT EXCHANGER | |
| DE7801386U1 (en) | WATER HEATER | |
| AT288557B (en) | Electric instant water heater | |
| AT352351B (en) | WARNING DEVICE FOR EXCESSIVE TEMPERATURES IN HOT WATER HEATING SYSTEMS WITH ADDITIONAL HOT WATER HEATER | |
| DE1679720C3 (en) | Electric water heater | |
| DE440717C (en) | Water heater with coil heated by fins | |
| DE20211040U1 (en) | energy exchanger | |
| EP0458427A1 (en) | Combined water heater | |
| CH86530A (en) | Device for the electrical heating of liquids and gases. | |
| AT158802B (en) | Heat exchanger. | |
| DE1237251B (en) | Burner system for pulsating combustion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee | ||
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |