DE674738C - Device for heat transfer apparatus with spirally wound duct walls - Google Patents
Device for heat transfer apparatus with spirally wound duct wallsInfo
- Publication number
- DE674738C DE674738C DER93000D DER0093000D DE674738C DE 674738 C DE674738 C DE 674738C DE R93000 D DER93000 D DE R93000D DE R0093000 D DER0093000 D DE R0093000D DE 674738 C DE674738 C DE 674738C
- Authority
- DE
- Germany
- Prior art keywords
- heat transfer
- spirally wound
- transfer apparatus
- duct walls
- walls
- 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.)
- Expired
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
.%mit spiralförmig gewundenen Kanalwänden Vorrichtung bei Wärmeübertragungsapparaif Die Erfindung bezieht sich auf eine Wärmeübertragungsvorrichtung mit spiralförmigen, für strömende Gase oder Flüssigkeiten bestimmten Kanälen, deren Wände aus aufeinandergewundenen Spiralwindungen bestehen..% with spirally wound channel walls device in heat transfer apparatus The invention relates to a heat transfer device with spiral, channels intended for flowing gases or liquids, the walls of which are made of coiled Spiral turns exist.
Bei den bekannten Wärmeaustauschvorrichtungen wurden die Spiralwandungen des ganzen WÄrmeaustauschers mit unveränderter Stärke ausgeführt, wobei stets die schwächste Stelle am Außenumfang für die Bemessung der Wandstiärke ausschlaggebend war. Demgegenüber nimmt erfindungsgemäß die Stärke der Spirahvand von außen nach der Mitte zu ständig oder absatzweise ab. Der Erfolg dieser Maßnahme besteht nicht nur in einer unmittelbaren Baustoffersparnis durch die geringere Wandstärke, sondern gleichzeitig wird der Wärmeleitungswiderstand der Wand vermindert, so daß bei gleicher Flächenausdehnung unter sonst gleichen Umständen größere Wärmemengen übertragen werden. Da der Bemessung der Wärmeaustauscher regelmäßig die zu übertragende Wärmemenge zugrunde liegt, bedürfen die erfundenen Wärmeaustauscher einer geringeren Austauschfläche. Hierdurch wird eine weitere sehr erhebliche Baustoffersparnis erzielt, denn mit den geringeren Flächen vermindert sich der Außendurchmesser des Wärmeaustauschers. Dieser geringere Außendurchmesser führt weiterhin zu geringeren mechanischen Beanspruchungen der Spiralwandungen, welche eine zusätzliche Verminderung der Wandstärke ermöglichen. -Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt-, und es zeigt: Abb. I einen Längsschnitt der Wärmeübertragungsvorrichtung und Abb. 2 einen Querschnitt derselben Vorrichtung.In the known heat exchange devices, the spiral walls of the whole heat exchanger executed with unchanged strength, always the weakest point on the outer circumference is decisive for the dimensioning of the wall thickness was. In contrast, according to the invention, the strength of the Spirahvand decreases from the outside the middle too constantly or intermittently. The success of this measure does not exist only in an immediate building material savings due to the lower wall thickness, but at the same time the heat conduction resistance of the wall is reduced, so that with the same Area expansion transfer larger amounts of heat under otherwise identical circumstances will. Since the dimensioning of the heat exchanger regularly the amount of heat to be transferred is the basis, the invented heat exchangers require a smaller exchange surface. This results in a further very considerable saving in building materials, because with The smaller areas reduce the external diameter of the heat exchanger. This smaller outer diameter also leads to lower mechanical stresses the spiral walls, which allow an additional reduction in wall thickness. -The drawing shows an embodiment of the subject matter of the invention-, and it shows: Fig. I a longitudinal section of the heat transfer device and Fig. Figure 2 shows a cross section of the same device.
Die Wandteile I und 2, die zwei Kanäle 3 und 4 für Flüssigkeiten oder Gase begrenzen, sind der Deutlichkeit halber etwas übertrieben mit nach der Mitte hin stark abnehmender Blechstärke veranschaulicht. Bei der üblichsten Herstellungsart, und zwar unter Windung ungeteilter Bandbleche, werden beim Herstellen des Apparates gemäß der Erfindung entweder aus einem Stück gewalzte Bleche oder zusammengeschweißte Blechteile verschiedener Stärke benutzt, die ein Blech von fortlaufend oder absatzweise sich verändernder Stärke bilden.The wall parts I and 2, the two channels 3 and 4 for liquids or Limit gases are, for the sake of clarity, a little exaggerated with towards the middle illustrated with strongly decreasing sheet metal thickness. In the most common production method, namely with the winding of undivided strip sheets, are used in the manufacture of the apparatus according to the invention either sheets rolled from one piece or welded together Sheet metal parts of various thicknesses used, which a sheet of continuous or intermittent form of changing strength.
Bei mäßigem Arbeitsdruck könnte etwa bei Bauarten mit stetig sich verändernder Wandstärke die Stärke an den inneren Windungen so klein werden, daß Herstellungsschwierigkeiten entstehen würden. Solchenfalls werden die inneren Windungen mit unveränderlicher Mindeststärke ausgeführt, und die Zunahme der Wandstärke fängt erst in gewissem Abstand von dem innersten Teil der Wandungen an.With moderate working pressure, for example, with types with steady changing wall thickness, the strength of the inner turns are so small that Manufacturing difficulties would arise. Such will be the inner coils executed with a constant minimum thickness, and the increase in wall thickness begins only at a certain distance from the innermost part of the walls.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER93000D DE674738C (en) | 1935-04-02 | 1935-04-02 | Device for heat transfer apparatus with spirally wound duct walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DER93000D DE674738C (en) | 1935-04-02 | 1935-04-02 | Device for heat transfer apparatus with spirally wound duct walls |
Publications (1)
Publication Number | Publication Date |
---|---|
DE674738C true DE674738C (en) | 1939-04-21 |
Family
ID=7418883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DER93000D Expired DE674738C (en) | 1935-04-02 | 1935-04-02 | Device for heat transfer apparatus with spirally wound duct walls |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE674738C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2744002A1 (en) * | 1977-09-30 | 1979-04-12 | Hoechst Ag | Spiral heat exchanger for particulate suspensions - has spiral spaced walls with axial oppositely directed and tangential suspension and cooling media inlets and outlets |
US10697708B2 (en) * | 2016-04-18 | 2020-06-30 | Hamilton Sunstrand Corporation | Heat exchangers |
-
1935
- 1935-04-02 DE DER93000D patent/DE674738C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2744002A1 (en) * | 1977-09-30 | 1979-04-12 | Hoechst Ag | Spiral heat exchanger for particulate suspensions - has spiral spaced walls with axial oppositely directed and tangential suspension and cooling media inlets and outlets |
US10697708B2 (en) * | 2016-04-18 | 2020-06-30 | Hamilton Sunstrand Corporation | Heat exchangers |
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