TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The filtering pool is a three-stage sand filtering pool with three sections of sand and stone blocking and filtering belts. The preheating pool is a semi-sealed water pool with top end equipped with solar energy plating coating glass, where a heat conductive oil heating pipe and a pressurizing water pump are mounted in the preheating pool. The spray evaporating chamber is a semi-sealed trapezoidal rectangular or semi-cylindrical space formed by mounting a solar energy plating coating glass. A pressure atomizing sprayer or a centrifuge atomizing sprayer is mounted on the pressure pipeline in the spray evaporating chamber communicated with the preheating pool. The centrifuge atomizing sprayer is a rotary centrifuge atomizing sprayer with a centrifuge flywheel and a micro motor. A heat conductive oil heating pipe is mounted in the spray evaporating chamber, where the top is equipped with a steam collecting chamber and one side of the spray evaporating chamber is equipped with a discharge port capable of opening and closing. The steam condensing device is equipped with a micro refrigerating condensing device. The lower end of the steam condensing device is equipped with a condensed water collecting port connected to the fresh water pool via a pipeline. The tail end of the steam condensing device is an exhaust port with an exhaust fan. The steam condensing device is placed in a shady space. The micro refrigerating condensing device and the exhaust fan are electrically connected to the externally arranged solar cell set and the wind power generator via leads. The natural energy heat conductive oil heating device is a heat conductive oil storage tank with N solar vacuum pipes. The heat conductive oil is injected, and an electric heating pipe is mounted in the oil storage tank. The electric heating pipe is electrically connected to the externally arranged solar cell set and the wind power generator via leads. A heat conductive oil circulating oil pump with a separated machine and pump is mounted on the heat conductive oil pipeline and forms the natural energy heat conductive oil heating circulating system together with the heat conductive oil heating pipe and heat conductive oil pipeline mounted in the preheating pool and spray evaporating chamber. The oil storage tank and heat conductive oil pipeline of the natural energy heat conductive oil heating device are wrapped by asbestos heat preservation layers.