Small solar multistage falling film evaporation heat regeneration type seawater desalting device
A technology of falling film evaporation and solar energy, which is applied in the field of solar energy, can solve the problems of large and expensive systems, expensive vacuum pumps, and low temperature of heat sources, and achieve the effects of improving evaporation heat transfer coefficient, facilitating transportation and installation, and reducing device costs
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[0043] In this embodiment, the length, width, and height of the CPC concentrating plate 2 are 1600 mm, 330 mm, and 146 mm, respectively, and the support 1 is placed at a 30° angle with the ground. The seawater desalination device is divided into 8 working stages, including 8 first heat collecting units and 6 second heat collecting units in total. The first working stage is composed of 8 first heat collecting units connected in parallel. In the first to seventh working stages, the working temperature of each working stage is 150°C, 142°C, 134°C, 126°C, 118°C, 110°C and 102°C in sequence. The outer diameter of the all-glass vacuum solar collector tube 3 in each heat collecting unit is 58mm, the inner diameter is 47mm, and the effective length is 1.6m. The heat pipe 5 has an outer diameter of 45 mm and a length of 2.5 m. The inner diameter of the sea water tank 6 is 380 mm, and the overall height is 500 mm. The middle is divided into a storage tank and an evaporat...
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