Water-tank-free co-type water supply phase-change heat storage solar heat collector water heating system

The invention relates to a water-tank-free co-type water supply phase-change heat storage solar heat collector water heating system. The water-tank-free co-type water supply phase-change heat storagesolar heat collector water heating system comprises a header, solar vacuum tubes, a heat collector fixing frame, the solar vacuum tube are arranged in the heat collector fixing frame side by side, a same-pass water supply heat exchange tube is arranged inside the solar vacuum tubes, and a phase change heat storage material is wrapped outside the same-pass water supply heat exchange tube; and a light reflecting material is arranged on the back side of the solar vacuum tubes, a water inlet tube of the solar vacuum tubes is connected with a cold water tube, the cold water tube is used for supplying water, the same-pass water supply heat exchange tube exchanges heat with the phase-change heat storage material, cold water is subjected to heat exchange into hot water, and the hot water is outputfor use through a hot wat