A SOLAR VACUUM HEAT-COLLECTING TUBE

摘要

A solar vacuum heat-collecting tube includes a vacuum glass tube (1) and a metal heat absorber (2) provided inside the vacuum glass tube (1). The metal heat absorber (2) includes a metal heat-absorbing tube bundle with two or more metal heat-absorbing tubes (22) and a tubular metal heat-absorbing fin (23). The metal heat-absorbing fin (23) is thermally connected with the metal heat-absorbing tubes (22).