DE19812227B4 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- Publication number
- DE19812227B4 DE19812227B4 DE1998112227 DE19812227A DE19812227B4 DE 19812227 B4 DE19812227 B4 DE 19812227B4 DE 1998112227 DE1998112227 DE 1998112227 DE 19812227 A DE19812227 A DE 19812227A DE 19812227 B4 DE19812227 B4 DE 19812227B4
- Authority
- DE
- Germany
- Prior art keywords
- heat exchanger
- flow channels
- exchanger according
- collector
- flow
- 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 - Fee Related
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
- F28D7/10—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 one within the other, e.g. concentrically
- F28D7/12—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 one within the other, e.g. concentrically the surrounding tube being closed at one end, e.g. return type
-
- 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Wärmeübertrager, vorzugsweise kreisförmiger Wärmeübertrager, dessen innerer Stirnfläche das Fluid axial zugeführt wird, an dieser umgelenkt und entgegen der Zuströmrichtung konzentrisch zum Zustrom abgeführt wird, dadurch gekennzeichnet, daß die Innenfläche des Wärmeübertragers (1) sternförmige Strömungskanäle (2 und/oder 4) besitzt.Heat exchanger, preferably circular Heat exchanger, whose inner face is the Fluid supplied axially is deflected at this and opposite to the inflow concentric with the Influx dissipated is characterized in that the inner surface of the heat exchanger (1) star-shaped Flow channels (2 and / or 4).
Description
Die Erfindung betrifft einen vorzugsweise kreisförmigen Wärmeübertrager, dessen innerer Stirnfläche das Fluid axial zugeführt wird, an dieser umgelenkt und entgegen der Zuströmrichtung konzentrisch zum Zustrom abgeführt wird.The The invention relates to a preferably circular heat exchanger whose inner end face the Fluid supplied axially is deflected at this and opposite to the inflow concentric with the Influx dissipated becomes.
Derartige
Wärmeübertragerverhältnisse
findet man z. B. bei Kaltgaskältemaschinen,
bei denen ein Kolben, insbesondere ein Verdränger, in einem Zylinder bewegt
wird und sich der Kaltgasraum an einer Stimseite des Zylinders befindet.
Die Stirnseiten solcher Zylinder sind überwiegend flach ausgebildet. Es
sind aber auch halbrunde, kegelförmige
und pyramidenförmige
Ausführungen
bekannt. In der
Die
Form der Stirnfläche
wird bei diesen Maschinen in der Regel der Form der Verdrängerstirnfläche angepaßt. Gemäß der
Es
sind aber auch andere Kühleinrichtungen bekannt,
deren Zylinder stirnseitig ebenfalls mit einer Kühlfläche ausgestattet sind. So wird
z. B. in der
Auch
in der
Alle genannten Kühleinrichtungen haben gemeinsam, daß an den Wärmeübertragerinnenflächen keine besonderen Maßnahmen zur Verbesserung des Wärmeübergangs bzw. des Strömungsverlaufes des Kühlmediums vorgesehen sind.All said cooling devices have in common that the heat exchanger inner surfaces no special measures to improve the heat transfer or the flow of the cooling medium are provided.
Aufgabe der Erfindung ist es deshalb, durch entsprechende Gestaltung der stirnseitigen Innenfläche der Wärmeübertrager die Wärmeübertragung zwischen Arbeitsfluid und Wärmeübertragerwand zu verbessern und dabei günstige Strömungsverhältnisse zu schaffen.task The invention is therefore, by appropriate design of the inside surface the heat exchanger the heat transfer between Working fluid and heat exchanger wall to improve while keeping cheap flow conditions to accomplish.
Außerdem soll die Temperaturdifferenz zwischen dem Arbeitsfluid und dem zu kühlenden Objekt verringert werden.In addition, should the temperature difference between the working fluid and the to be cooled Object be reduced.
Erfindungsgemäß wird die Aufgabe durch die kennzeichnenden Merkmale des Hauptanspruches gelöst, indem die innere Stirnfläche der Wärmeübertrager so gestaltet wird, daß die sich an dieser Stelle umkehrende Strömung des Kühlmediums günstig beeinflußt wird und eine gute Wärmeübertragung durch die vergrößerte Wärmeübertragerfläche stattfindet.According to the invention Problem solved by the characterizing features of the main claim by the inner face the heat exchanger is designed so that the At this point reversing flow of the cooling medium is favorably influenced and a good heat transfer takes place through the enlarged heat transfer surface.
An nachfolgenden Ausführungsbeispielen wird die Erfindung näher erläutert:At subsequent embodiments will the invention closer explains:
In hier nicht dargestellter Weise ist es auch möglich, am Außendurchmesser der Strömungskanäle einen Sammler in Form einer Ausdrehung vorzusehen.In not shown here, it is also possible on the outer diameter the flow channels one To provide collector in the form of a recess.
In
Die
durch die eingearbeiteten Strömungskanäle
Aus
Fertigungsgründen
kann der Wärmeübertrager
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998112227 DE19812227B4 (en) | 1998-03-20 | 1998-03-20 | Heat exchanger |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998112227 DE19812227B4 (en) | 1998-03-20 | 1998-03-20 | Heat exchanger |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19812227A1 DE19812227A1 (en) | 1999-09-23 |
DE19812227B4 true DE19812227B4 (en) | 2006-04-20 |
Family
ID=7861641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1998112227 Expired - Fee Related DE19812227B4 (en) | 1998-03-20 | 1998-03-20 | Heat exchanger |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19812227B4 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3642683A1 (en) * | 1986-12-13 | 1988-06-16 | Bodenseewerk Geraetetech | CRYSTATURE FOR COOLING A DETECTOR |
DD286410A5 (en) * | 1989-08-02 | 1991-01-24 | Veb Kombinat Ilka,Luft- Und Kaeltetechnik,De | COLD HEAD OF A STIRLING KAELTEMASCHINE WITH FREESWENDENDEN VERDRAENGER |
DE4142368A1 (en) * | 1990-12-21 | 1992-07-02 | Hughes Aircraft Co | Low temp. expansion equipment - has drive mechanism located in fixed position in housing |
DE19501035A1 (en) * | 1995-01-16 | 1996-07-18 | Bayer Ag | Stirling engine with heat transfer injection |
-
1998
- 1998-03-20 DE DE1998112227 patent/DE19812227B4/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3642683A1 (en) * | 1986-12-13 | 1988-06-16 | Bodenseewerk Geraetetech | CRYSTATURE FOR COOLING A DETECTOR |
DD286410A5 (en) * | 1989-08-02 | 1991-01-24 | Veb Kombinat Ilka,Luft- Und Kaeltetechnik,De | COLD HEAD OF A STIRLING KAELTEMASCHINE WITH FREESWENDENDEN VERDRAENGER |
DE4142368A1 (en) * | 1990-12-21 | 1992-07-02 | Hughes Aircraft Co | Low temp. expansion equipment - has drive mechanism located in fixed position in housing |
DE19501035A1 (en) * | 1995-01-16 | 1996-07-18 | Bayer Ag | Stirling engine with heat transfer injection |
Also Published As
Publication number | Publication date |
---|---|
DE19812227A1 (en) | 1999-09-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8122 | Nonbinding interest in granting licenses declared | ||
8125 | Change of the main classification |
Ipc: F25B 9/14 |
|
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licenses declared (paragraph 23) | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20121002 |