METHOD FOR MANUFACTURING HEAT PIPE TYPE VACUUM HEAT COLLECTING PIPE WITHOUT TAIL PIPE, AND VACUUM HEAT COLLECTING PIPE

摘要

A method for manufacturing a heat pipe type vacuum heat collecting pipe without a tail pipe, and the vacuum heat collecting pipe manufactured by using the method. The manufacturing method comprises: (a) welding a metal ring (1) at one end of a glass pipe (4, 9); (b) welding a metal pipe (2) on the metal ring (1); (c) placing a metal sheet (3) at a part close to a heat pipe (5) condensation section, separately placing a solder at an inner ring and an outer ring of the metal sheet (3), or not placing the metal sheet (3) but directly placing the solder at the heat pipe (5) condensation section; (d) inserting a heat pipe (5) into the glass pipe (4, 9); (e) performing bottom rounding on the other end of the glass pipe (4, 9); (f) using the metal pipe (2) and the heat pipe (5) which do not contact with each other as an exhausting pipe, and integrally inserting the metal pipe (2) and the heat pipe (5) into an exhausting groove (8) for vacuumizing exhaust; (g) after the vacuumizing exhaust is ended, a mechanical apparatus (7) in the exhausting groove (8) pushing the heat pipe (5), so as to allow the metal pipe (2) to contact the metal sheet (3) or allow the heat pipe (5) condensation section where the solder is placed to contact the metal pipe (2); and (h) melting the solder outside the exhaust groove (8) in high-frequency heating mode, and sealing the heat pipe type vacuum heat collecting pipe. In the method, a tail pipe is not required to be welded in advance, and therefore, the production efficiency can be improved, and the production cost can be reduced.