EP0803694B1 - Utilisation d'un échangeur de chaleur à contre-courant - Google Patents
Utilisation d'un échangeur de chaleur à contre-courant Download PDFInfo
- Publication number
- EP0803694B1 EP0803694B1 EP97103065A EP97103065A EP0803694B1 EP 0803694 B1 EP0803694 B1 EP 0803694B1 EP 97103065 A EP97103065 A EP 97103065A EP 97103065 A EP97103065 A EP 97103065A EP 0803694 B1 EP0803694 B1 EP 0803694B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- deflection
- guides
- air
- air 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 - Lifetime
Links
Images
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
- F28D9/0031—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 for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0037—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 for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/108—Particular pattern of flow of the heat exchange media with combined cross flow and parallel flow
Definitions
- the invention relates to a counterflow heat exchanger in plate construction with alternating between heat exchanger plates formed deflection guides with transverse to the direction of a Air flow arranged deflection surfaces, the deflection guides as L-shaped guides with longer and shorter L-legs are formed.
- heat exchangers are preferred in Devices for ventilation of rooms are used, especially in roller shutter units with a roller shutter box and a ventilation unit housed in it. How in the described embodiment, the efficiency often unsatisfactory in terms of heat recovery. This can essentially be attributed to the fact that the mean air flow is different from the surrounding edge flows not in contact with the heat exchanger plates comes and consequently there is no heat exchange. - The invention seeks to remedy this.
- the invention has for its object a countercurrent heat exchanger in plate construction of the one described at the beginning Embodiment of a suitable use with to deliver optimized efficiency.
- the invention solves this problem by using a Counterflow heat exchanger in plate construction with between heat exchanger plates alternately formed deflection guides deflection surfaces arranged transversely to the direction of an air flow with formations, beads or the like. Elevations, the deflecting guides as L-shaped guides each with a longer and shorter L-leg are for heat recovery in ventilation and air conditioning Plants in which the air flow along each longer L-legs and for the formation of jams and eddies on the shorter one that forms the deflection surface L-leg is deflected.
- the invention is based on the knowledge that through a sufficient deflection of the air flow between the heat exchanger plates on the one hand, dynamic pressure can be generated, on the other hand, vortex formation can be achieved from which an improved heat transfer on the heat exchanger plates results. Because now not only the middle come Airflow surrounding edge flows with the heat exchanger plates in contact, but precisely because of the vortex formation also the mean airflow. In fact, in Temperature range from - 20 ° C to + 70 ° C in relation to the Heat transfer achieve an efficiency of 70% and more is. That is an optimal result.
- the deflection surfaces point to stiffening, but also for increased eddy formation and consequently Improvement of heat exchange formings, beads or Like. surveys.
- the heat exchanger plates have except for the areas of air inlet and air outlet expediently folded plate edges at a distance with contact surfaces for the formation of a deflection guide in each case on top of the heat exchanger plates.
- the heat exchanger plates are made of aluminum or another Metal with good heat transfer and are easy to admit a counterflow plate heat exchanger with each other connect.
- a heat exchanger 1 is of plate construction shown, which is a counterflow heat exchanger for heat recovery in ventilation and air conditioning Investments.
- This heat exchanger 1 is used primarily for ventilation of rooms and for Installation in a roller shutter box 2.
- Between the heat exchanger plates 3 are alternating counter air ducts 4 for outside air / supply air and room air / extract air.
- the Air flow is indicated by arrows.
- the counter air ducts are for congestion and vortex formation as deflection guides 4 designed so that a straight line undisturbed air flow is prevented. Rather are according to the embodiment, the deflection guides 4 as L-shaped guides formed, the one being shorter L-leg one arranged transverse to the air flow direction Deflection surface 5 forms.
- the heat exchanger plates 3 have except for the areas of air inlet 6 and air outlet 7 Plate edges 8 folded at a distance with support surfaces 9 for the formation of a deflection guide 4 the next heat exchanger plate resting on and are made of aluminum.
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)
- Separation By Low-Temperature Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Claims (2)
- Utilisation d'un échangeur de chaleur à contre-courant, (1) à plateaux comportant entre les plateaux d'échangeur (3), alternativement des guides de renvoi (4) avec des surfaces de renvoi (5) installées transversalement à la direction d'une veine d'air et munies de déformations, de moulures ou d'autres reliefs semblables,
les guides de renvoi (4) ayant une forme de L avec une branche longue et une branche courte, pour la récupération de chaleur d'installations de climatisation de locaux, dans lesquelles la veine d'air est guidée le long de la branche longue, et déviée au niveau de la surface de renvoi constituée par la branche courte pour former des retenues ou des tourbillons. - Application selon la revendication 1,
caractérisée en ce que
les plaques d'échangeur de chaleur (3) comportent, sauf dans les zones d'entrée (6) et de sortie d'air (7), des bords de plaque (8) à arête coupée à la hauteur d'écartement, et ayant des surfaces d'appui (9) pour la plaque d'échangeur de chaleur (3) qui se trouve chaque fois au-dessus, pour former un guide de renvoi (4).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29607547U DE29607547U1 (de) | 1996-04-26 | 1996-04-26 | Wärmetauscher in Plattenbauweise |
DE29607547U | 1996-04-26 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0803694A2 EP0803694A2 (fr) | 1997-10-29 |
EP0803694A3 EP0803694A3 (fr) | 1999-03-03 |
EP0803694B1 true EP0803694B1 (fr) | 2002-10-16 |
Family
ID=8023141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97103065A Expired - Lifetime EP0803694B1 (fr) | 1996-04-26 | 1997-02-26 | Utilisation d'un échangeur de chaleur à contre-courant |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0803694B1 (fr) |
AT (1) | ATE226308T1 (fr) |
DE (1) | DE29607547U1 (fr) |
DK (1) | DK0803694T3 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19737158A1 (de) * | 1997-08-26 | 1999-03-04 | Feustle Gerhard Dipl Ing Fh | Hocheffizienter Wärmetauscher zur Anwendung in Sensor- oder zeitgesteuerter Stoßbelüftung mit Wärmerückgewinnung |
FR2814537B1 (fr) * | 2000-09-25 | 2005-09-02 | Valeo Thermique Moteur Sa | Echangeur de chaleur pour deux fluides a rendement ameliore |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB527585A (en) * | 1938-04-16 | 1940-10-11 | Gyoergy Jendrassik | Plate heat exchange apparatus for gas turbines |
FR1284416A (fr) * | 1961-03-21 | 1962-02-09 | Luwa Ag | échangeur de chaleur |
DE1601216B2 (de) * | 1967-11-03 | 1971-06-16 | Linde Ag, 6200 Wiesbaden | Blechtafel fuer platten waermetauscher mit einem stapel solcher blechtafeln |
SE7903535L (sv) * | 1979-04-23 | 1980-10-24 | Sigurd Hultgren | Vermevexlare |
FR2576679A1 (fr) * | 1985-01-25 | 1986-08-01 | Rech Const Electro Et | Echangeur thermique, notamment pour enceintes etanches |
GB8506415D0 (en) * | 1985-03-12 | 1985-04-11 | Atkin H S | Room ventilator |
DE4142177C2 (de) * | 1991-12-20 | 1994-04-28 | Balcke Duerr Ag | Plattenwärmetauscher |
CZ278199B6 (en) * | 1992-08-28 | 1993-09-15 | Rekuper Moravec Miroslav | Asymmetrical recuperative heat-exchange apparatus |
GB2273767B (en) * | 1992-12-24 | 1997-06-25 | Michael David Rose | Improvements in or relating to air ventilating units |
-
1996
- 1996-04-26 DE DE29607547U patent/DE29607547U1/de not_active Expired - Lifetime
-
1997
- 1997-02-26 AT AT97103065T patent/ATE226308T1/de not_active IP Right Cessation
- 1997-02-26 EP EP97103065A patent/EP0803694B1/fr not_active Expired - Lifetime
- 1997-02-26 DK DK97103065T patent/DK0803694T3/da active
Also Published As
Publication number | Publication date |
---|---|
EP0803694A3 (fr) | 1999-03-03 |
DK0803694T3 (da) | 2003-02-17 |
EP0803694A2 (fr) | 1997-10-29 |
DE29607547U1 (de) | 1996-07-18 |
ATE226308T1 (de) | 2002-11-15 |
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