Solar hot air collector installed with horizontally inserted, densely arranged and jacking necking reducing evacuated solar collector tubes
A technology of vacuum heat collecting tubes and heat collectors, which is applied in the field of solar hot air systems, can solve the problems of no heat preservation function, no building material function, high production cost, etc., and achieve the effects of firm fixation, long life and reasonable price
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[0030] Such as figure 1 , figure 2 Shown: a solar hot air heat collector with narrowed and variable-diameter vacuum heat collecting tubes installed horizontally and densely arranged on the top, including an air duct outer barrel 19, an insulation layer 18, an air duct inner pipe 20, a vacuum heat collecting tube, a fixed bracket 3, and a vacuum collector. Heat pipe tailstock, air duct inner tube 20 is placed in the air duct outer barrel 19, an insulation layer 18 is established between the air duct inner tube 20 and the air duct outer barrel 19, and the air duct inner tube 20 is provided with an air inlet and an air outlet. The air duct is longitudinally installed and fixed on one end of the bracket. The outer barrel 19, the insulation layer 18 and the inner pipe 20 of the air duct have coaxial holes on the same side for inserting the vacuum heat collecting tube. The heat collecting tube, the fixed bracket supporting the vacuum heat collecting tube is a load-bearing fixed br...
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