A heat exchanger plate and a plate heat exchanger

Patent metadata

Field	Value
Publication number	US-2019033003-A1
Application number	US-201615571426-A
Country	US
Kind code	A1
Filing date	Apr 25, 2016
Priority date	May 11, 2015
Publication date	Jan 31, 2019
Grant date	—

Abstract

A heat exchanger plate comprises a heat exchanger area, at least two portholes each having a diameter, and at least two porthole areas. Each of the portholes is surrounded by a respective one of the porthole areas. The porthole areas are separated from each other. Each porthole area comprises a corrugation of beams. Each of the beams has an end and extends along a respective extension direction towards the porthole. The extension direction of each of the beams forms an acute angle to a radial line through the end of the beam.

First claim

1 . A heat exchanger plate, comprising
a heat exchanger area, at least two portholes each having a diameter, at least two porthole areas, wherein each of the portholes is surrounded by a respective one of the porthole areas, wherein the porthole areas are separated from each other, wherein each porthole area comprises a corrugation of beams, and wherein each of the beams has an end and extends along a respective extension direction towards the porthole, wherein the extension direction of each of the beams forms an acute angle to a radial line through the end of the beam.

2 . A plate heat exchanger according to claim 1 , wherein the acute angle is substantially equal for each of the beams.

3 . A heat exchanger plate according to claim 1 , wherein the beams are equidistantly provided around the porthole.

4 . A heat exchanger plate according to claim 1 , wherein the extension direction of each beam is tangential with respect to a circle, which has a diameter smaller than the diameter of the porthole and is concentric with the porthole.

5 . A heat exchanger plate according to claim 1 , wherein the acute angle is larger than 10°.

6 . A heat exchanger plate according to claim 1 , wherein the acute angle is smaller than 80°.

7 . A heat exchanger plate according to claim 1 , wherein the end of each beam is located at a distance from the porthole.

8 . A heat exchanger plate according to claim 1 , wherein each of the beams has an opposite end.

9 . A heat exchanger plate according to claim 8 , wherein the opposite end of each beam is located within the respective porthole area.

10 . A heat exchanger plate according to claim 8 , wherein the opposite end of at least some of the beams is connected to a beam of a corrugation of the heat exchanger area.

11 . A heat exchanger plate according to claim 1 , wherein each beam has a curved shape thereby crossing the extension direction twice.

12 . A plate heat exchanger comprising a plurality of heat exchanger plates according to claim 1 .

13 . A plate heat exchanger according to claim 12 , wherein each beam of the porthole areas of one heat exchanger plate forms a contact zone with a beam of one of the porthole areas of an adjacent heat exchanger plate.

14 . A plate heat exchanger according to claim 13 , wherein each beam of the porthole area has a curved shape thereby crossing the extension direction twice, and wherein each beam of the porthole area of one heat exchanger plate forms two contact zones.

15 . A plate heat exchanger according to claim 14 , wherein each beam of the porthole area of one heat exchanger plate forms two contact zones with two beams of the porthole area of the adjacent heat exchanger plate.

Assignees

• Alfa Laval Corp Ab

Inventors

• Mohammadian Mehrdad
• Romlund Jens

Classifications

• F28F9/0075

  Supports for plates or plate assemblies · CPC title

• F28F9/026

  with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits · CPC title

• F28F2225/00

  Reinforcing means · CPC title

• F28D9/0062

  the conduits for one heat-exchange medium being formed by spaced plates with inserted elements (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · CPC title

• F28D9/005 Primary

  the plates having openings therein for both heat-exchange media · CPC title