摘要:
A core (30) for an integral collector-storage solar water heater has a first tray (40) which acts as a solar absorber and an opposed second tray (42). The trays (40) and (42) are configured to form opposite sides of a liquid tight storage tank (44) when joined together in a mutual overlying relationship. A plurality of joining ribs (60b) is provided internally of the tank. The joining ribs (60b) are configured to enable joining of the first tray to the second tray at multiple locations within the tank. A passive limiter (32) is coupled to a vent of the core (30) and acts to limit the temperature inside the core and minimise loss of energy storage liquid within the tank (44) through vaporisation.
摘要:
A method of forming a sealed joint between a tubular article (10) and a thin sheet article (14) wherein the articles (10, 14) are made of metallic materials that are capable of fusion welding together. One step in the method involves locating an end of the tubular article in a collar (20) surrounding a hole (12) formed in the thin sheet article (14). An end (22) of the tubular article (14) is positioned to lie substantially flush with a proximal end (24) of the collar (20). Next the ends (22, 24) of the collar and the tubular article are fusion welded forming a circumferential bead (26) creating an integral joint. Consequently in effect the previously separate a tubular article (10) and a thin sheet article (14) become a single piece.