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US 11,504,799 B2Granted
Heat-exchanger element and method for producing a heat-exchanger element
AssigneeKelvion Holding GmbH
InventorsMehmet Satin, Lv Yongzhi, Shen Kang
Life of this patent
Estimating the term…
Abstract
The invention relates to a heat-exchanger element for connection to tubes of a heat exchanger, the heat-exchanger element (1, 29, 32) consisting of a plurality of components (13, 14) welded to each other, and said components (13, 14) being interconnected by electron beam welding and being part of a heat exchanger head.
Claims12
A heat exchanger element, comprising:
- a plurality of components which are welded together, with two of the components forming a corner joint, one of the two components formed with a set-back shoulder that is set back with respect to an inner side of the one component to provide a support for another one of the two components to thereby form an L-shaped welding joint, said two components being configured to form a set-back fillet worked out in the two components in adjacent relation to the set-back shoulder to thereby provide a weld preparation for a root counter weld configured as V weld which is located in the set-back fillet to melt a lower leg of the L-shaped welding joint and to connect the two components, said L-shaped welding joint including an upper leg configured to enable from a side opposite to the lower leg direction of an I-shaped weld by electron beam welding towards the root counter weld so as to completely fill up the welding joint from the opposite side, said V weld extending diagonal to the I-shaped weld and extending diagonal to the lower leg of the L-shaped welding joint.
A method for producing a heat exchanger element, comprising:
- forming a set-back shoulder on a first component that is set back with respect to an inner side of the first component as support for a second component prior to subsequent welding;
- forming a worked-out set-back fillet in the first and second components in adjacent relationship to the set-back shoulder as a preparation seam for a root counter weld and prior to subsequent welding;
- performing a root counter weld in the set-back fillet, thereby melting a lower leg of an L-shaped welding joint between the first and second components and connecting the first and second components to one another, with the root counter weld reaching as far as an upper leg of the L-shaped welding joint;
- and
- directing by electron beam welding an I-shaped weld from a side opposite to the lower leg in the upper leg of the L-shaped welding joint onto the root counter weld to thereby completely fill the L-shaped welding joint.
2 more elements
Dependencies are inferred from the claim text.