EP0803694A2 - Echangeur de chaleur à plaques - Google Patents

Echangeur de chaleur à plaques Download PDF

Info

Publication number
EP0803694A2
EP0803694A2 EP97103065A EP97103065A EP0803694A2 EP 0803694 A2 EP0803694 A2 EP 0803694A2 EP 97103065 A EP97103065 A EP 97103065A EP 97103065 A EP97103065 A EP 97103065A EP 0803694 A2 EP0803694 A2 EP 0803694A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
guides
air
plate
deflection
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
EP97103065A
Other languages
German (de)
English (en)
Other versions
EP0803694B1 (fr
EP0803694A3 (fr
Inventor
Günter Klasen
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.)
SKS Stakusit Bautechnik GmbH
Original Assignee
SKS-STAKUSIT-KUNSTSTOFF 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 SKS-STAKUSIT-KUNSTSTOFF GmbH and Co KG filed Critical SKS-STAKUSIT-KUNSTSTOFF GmbH and Co KG
Publication of EP0803694A2 publication Critical patent/EP0803694A2/fr
Publication of EP0803694A3 publication Critical patent/EP0803694A3/fr
Application granted granted Critical
Publication of EP0803694B1 publication Critical patent/EP0803694B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 plate-type heat exchanger, in particular a countercurrent heat exchanger, for heat recovery in ventilation and air conditioning systems, with counter-air ducts alternately formed between heat exchanger plates.
  • Such heat exchangers are preferably used in devices for ventilating rooms, in particular in roller shutter units with a roller shutter box and a ventilation device accommodated therein.
  • the efficiency in terms of heat recovery is often unsatisfactory. This is essentially due to the fact that the average air flow, unlike the peripheral flows surrounding it, does not come into contact with the heat exchanger plates and consequently no heat exchange takes place. - The invention seeks to remedy this.
  • the invention has for its object to provide a plate-type heat exchanger, in particular countercurrent heat exchanger, of the embodiment described in the introduction, which is characterized by optimal efficiency.
  • the invention in the case of a generic heat exchanger in that the counter-air guides are designed as deflection guides for the formation of jams and vortices.
  • the invention is based on the knowledge that by 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, which results in an improved heat transfer to the heat exchanger plates. Because now not only the peripheral flows surrounding the average air flow come into contact with the heat exchanger plates, but also because of the eddy formation also the average air flow. In fact, in the temperature range from - 20 ° C to + 70 ° C with respect to the heat transfer, an efficiency can be achieved that is 70% and more. That is an optimal result.
  • the deflection guides have deflection surfaces arranged transversely or at predetermined angles of incidence with respect to the air flow direction.
  • the deflection surfaces for stiffening, but for increased eddy formation and consequently improvement of the heat exchange can have projections, beads or the like. Elevations.
  • the heat exchanger plates expediently have plate edges that are folded at a distance and have contact surfaces for the heat exchanger plate that lies on top, forming a deflection guide.
  • the heat exchanger plates are made of aluminum or another metal with good heat transfer and can be easily connected to a countercurrent plate heat exchanger.
  • the deflection guides can be designed as L-shaped, Z-shaped or meandering guides.
  • the one L-leg in each case forms the deflection surface which generates the dynamic pressure and eddies.
  • a plate-type heat exchanger 1 is shown, which is a countercurrent heat exchanger for heat recovery in ventilation and air conditioning systems.
  • This heat exchanger 1 is preferably used for ventilating rooms and for installation in a roller shutter box 2.
  • counter air ducts 4 for outside air / supply air and room air / exhaust air are alternately formed.
  • the air flow is indicated by arrows.
  • the counter air ducts are designed as deflection guides 4 for the formation of jams and vortices, so that a straight, undisturbed air flow is prevented.
  • the deflection guides 4 are designed as L-shaped guides, one of which Shorter L-legs form a deflection surface 5 arranged transversely to the air flow direction. Except for the areas of air inlet 6 and air outlet 7, the heat exchanger plates 3 have plate edges 8 bent at a distance with support surfaces 9 for the next heat exchanger plate resting on each other to form a deflection guide 4, 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)
EP97103065A 1996-04-26 1997-02-26 Utilisation d'un échangeur de chaleur à contre-courant Expired - Lifetime EP0803694B1 (fr)

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 true EP0803694A2 (fr) 1997-10-29
EP0803694A3 EP0803694A3 (fr) 1999-03-03
EP0803694B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814537A1 (fr) * 2000-09-25 2002-03-29 Valeo Thermique Moteur Sa Echangeur de chaleur pour deux fluides a rendement ameliore

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2814537A1 (fr) * 2000-09-25 2002-03-29 Valeo Thermique Moteur Sa Echangeur de chaleur pour deux fluides a rendement ameliore

Also Published As

Publication number Publication date
EP0803694B1 (fr) 2002-10-16
DK0803694T3 (da) 2003-02-17
ATE226308T1 (de) 2002-11-15
EP0803694A3 (fr) 1999-03-03
DE29607547U1 (de) 1996-07-18

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