Thermoelectric integrated device with solar vacuum tubes

The invention relates to a heat utilizing device with vacuum tubes, and discloses a thermoelectric integrated device with solar vacuum tubes, which comprises a water tank, at least two vacuum tubes and heat tubes. The quantity of the heat tubes is identical to that of the vacuum tubes; a support with an n-shaped section is arranged in each vacuum tube along the length direction of the vacuum tube, each support is provided with a horizontal plate and two vertical plates, each horizontal plate is positioned at a sectional chord of the corresponding vacuum tube, the upper end of each vertical plate is connected with the corresponding horizontal plate while the lower end of the vertical plate contacts with the inner wall of the corresponding vacuum tube, the horizontal plates are heat absorbing plates, silicon cells are laid on upper surfaces of the horizontal plates and are serially connected according to required voltage, leads of the silicon cells extend out of openings of the vacuum tubes, a suspension hollow