The invention discloses a solar separating type
heat pipe sea water desalting device which comprises a light-gathering groove, a separating type
heat pipe, a low-temperature multiple-effect
evaporation device, a
heat exchanger, an original sea water pipeline and a sea water pump, wherein an evaporating
pipe bundle positioned on the evaporating section of the separating type
heat pipe is distributed on the focusing line of the light-gathering groove and forms a cavity structure, and a condensing
pipe bundle positioned on the condensing section of the separating type heat
pipe is distributed in a first effect device of the low-temperature multiple-effect
evaporation device as a heating pipeline. According to the solar separating type heat pipe sea water desalting device,
sunlight is reflected into the cavity of the evaporating section of the separating type heat pipe through the light-gathering groove, the
sunlight is completely absorbed and enables a working medium inside the separating type heat pipe to vaporize, and working medium vapor rises to the condensing section and enters the condensing pipe bundle distributed in an
evaporation chamber as the heating vapor source of the low-temperature multiple-effect evaporation device. The solar separating type heat pipe sea water desalting device disclosed by the invention optimizes the process of a solar sea
water desalination process, has the characteristics of high
solar heat-collecting efficiency, good heat-transfer property, high adaptability, high integral efficiency, easiness for operation, easiness for control, suitability for low-cost module production and the like and can be widely applied to the field of solar sea
water desalination.