The invention discloses an experimental device for the
evaporation, absorption and heat and
mass transferring of a falling film of a
vertical tube, which comprises a closed and communicated circulating
system consisting of basic parts of a generator, an absorber, a pressure reducing valve, a
heat exchanger, a heating device and a cooling device; the circulating
system is provided with a temperature measuring
system, a pressure measuring system and a flow measuring system respectively so as to realize the tracking and monitoring on the condition of the temperature, the pressure and flow variation of a research working medium in the circulating system. The device has the advantages that: the closed and communicated circulating system consisting of the
vertical tube generator, the
vertical tube absorber, a connecting pipeline of the research working medium and the like is provided with
sight glass for conveniently observing a film forming flow state; the measuring system can realize the tracking and monitoring on the condition of the temperature, the pressure and flow variation of the research working medium in the circulating system, can carry out the thermal property research and the heat and
mass transferring experiment research of a plurality of working media and has compact structure, convenient operation,
visualization, intuition and reliable safety performance.