Wärmetransferplatte und Plattenwärmetauscher mit der Wärmetransferplatte

Details

Veröffentlichungs-Nr.

EP2957851

Aktenzeichen

EP14172928

Anmeldetag

18. Juni 2014

Veröffentlichung

3. Mai 2017

Erteilung

3. Mai 2017

Rechtsraum

EP

IPC

F28F3/04// F28F3/08F28F9/02F28D9/00

Abstract

A heat transfer plate (32) and a plate heat exchanger (26) comprising such a heat transfer plate is provided. The heat transfer plate (32) has a first long side (46) and second long side (48) and comprises a distribution area (64), a transition area (66) and a heat transfer area (54). The transition area (66) adjoins the distribution area (64) along a first borderline (68) and the heat transfer area (54) along a second borderline (70), and it is provided with a transition pattern comprising transition projections (98) and transition depressions (100). Further, the transition area (66) comprises a first sub area (66a), a second sub area (66b) and a third sub area (66c) arranged in succession between the first and second border lines. An imaginary straight line (102) extends between two end points (104, 106) of each transition projection (98) with a smallest angle α<n>, n = 1, 2, 3... in relation to a longitudinal center axis (y) of the heat transfer plate. The smallest angle α<n>for at least a main part of the transition projections (98) within the first sub area (66a) is essentially equal to a first angle α<1>. The smallest angle α<n>is varying between the transition projections (98) within the second sub area (66b) such that the smallest angle α<n>for at least a main part of the transition projections (98) within the second sub area (66b) is larger than said first angle α<1>and increasing in a direction from the first long side (46) to the second long side (48). The heat transfer plate is characterized in that at least a main part of the second borderline (70) is straight and essentially perpendicular to the longitudinal center axis (y) of the heat transfer plate (32). Further, the smallest angle α<n>for a first set of the transition projections (98) within the third sub area (66c) is essentially equal to said first angle α<1>.

Anmelder

Firma

Alfa Laval Corporate AB

Land

🇸🇪 Schweden

Fachgebiete