Pressure-bearing vacuum pipe solar water heater

The invention relates to the field of solar water heaters, in particular to a pressure-bearing vacuum pipe solar water heater. The problem of pressure bearing of vacuum pipe solar hot water is solved;the pressure-bearing type vacuum pipe solar water heater comprises a support, vacuum pipes and a heat preservation water tank, wherein the heat preservation water tank is located at the top of the support, and a water inlet, a water outlet and an emptying pipe are formed in the heat preservation water tank; the vacuum pipes are obliquely installed on the heat preservation water tank, the connection parts of the heat preservation water tank and the vacuum pipes are sealed, each connecting part is provided with a group of water inlet pipes and water outlet pipes, the water inlet pipes are located below the water outlet pipes, and the water outlet pipes extend into the heat preservation water tank to the middle upper part; and U-shaped copper pipe is arranged in each vacuum pipe in a sleevedmode, the two ends of the