Plate heat exchanger for solar heating

US10962308B2 · kind B2 · utility

Assignee

• ALFA LAVAL CORPORATE AB · SE

Inventors

• Per Sjödin · Lund, SE
• Mats Nilsson · Lund, SE

Key dates

• Filing date: Aug 24, 2017
• Grant date: Mar 30, 2021
• Expiry date: Feb 24, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/44
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A plate heat exchanger for solar heating includes a plurality of channels extending between an inlet and an outlet for conducting a heat transferring fluid. The plurality of channels is defined between a first plate and a second plate, the first and second plates being formed by stainless steel. Each of the plurality of channels has a single-curved extension between the inlet and the outlet as seen in a plane corresponding to the major surface extension of the first and second plates. Each of the plurality of channels has along at least a portion of its longitudinal extension a triangular or a chamfered triangular cross-section or a parallelogram or a chamfered parallelogram cross-section. The side walls of two adjacent channels define an angle α corresponding to, or smaller than, 100 degrees and more preferred smaller than 90 degrees.