The invention relates to a portable all-glass evacuated solar collector tube pressure-bearing
seawater distilling desalinator in the technical field of
seawater desalination. The desalinator comprises evacuated solar collector tubes, a folding type simplified CPC (Compound
Parabolic Concentrator) light condensing plate, a folding bracket and a condensing
pipe, wherein the folding type simplified CPC light condensing plate is installed on the upper surface of an oblique beam of the folding bracket; the evacuated solar collector tubes are inserted into heat collector tube support plates at both ends of the folding bracket; the condensing
pipe is installed on the lower surface of the oblique beam of the folding bracket; and a
central line of the evacuated solar collector tubes is mutually superposed with a light condensing
central line of the folding type simplified CPC plate. The invention has small size, light weight, simple structure, foldable heat collecting plate and safe and reliable carrying; an inner tube has elasticity and can be attached to a
glass tube all the time for reducing
thermal contact resistance; water can humidify the heat collecting surface of the whole
glass tube under any condition, and the
heat transfer efficiency is high; and the water
steam condensation can be realized directly by
solar energy, the desalinator is safe, and even if the tubesa re exploded, hot water and water steam can be stored in the
metal inner tube.