Method and apparatus for coupling panel boards and tubing to a h

Details Method and apparatus for coupling panel boards and tubing to a h Method and apparatus for coupling panel boards and tubing to a h

1998-06-09

2000-03-21

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29890033, B23P 1526

Patent

active

060387688

ABSTRACT:
Methods and apparatus for coupling heat exchange tubing to header pipes which include flanges are disclosed. Heat exchange tubing may generally be coupled, or bonded, to header pipe arrangements in order to produce heat exchanging devices which may be used in solar heating systems and thermal energy storage (TES) devices. According to one aspect of the present invention, a method for forming a heat exchanging device includes pretreating the ends of the heat exchange tubes used in the device. The pretreated ends are then heated to at least partially melt the pretreated ends. At the same time, heat is also applied to the header pipe arrangement included in the device to at least partially melt a flange arrangement which is a part of the overall header pipe arrangement. The pretreated ends of the heat exchange tubes are then sealed against the header pipe arrangement.

REFERENCES:
patent: 4382468 (1983-05-01), Hastwell
patent: 4598450 (1986-07-01), Thompson et al.
patent: 5150520 (1992-09-01), DeRisi
patent: 5407004 (1995-04-01), DeRisi et al.

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