Nozzle throat section water cooling structure
A nozzle and throat technology, applied in the field of hypersonic low-density wind tunnel, can solve the problems of inability to improve the structural strength of the inner wall of the nozzle, messy equipment layout, and water leakage of pipe joints, and achieve good cooling effect, convenient replacement and maintenance, The effect of avoiding water leakage
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[0017] Such as figure 1 , 2 As shown, the water-cooling structure of the nozzle throat section of the hypersonic low-density wind tunnel includes the inner wall of the nozzle 1, the outer shell 2, the cooling water inlet water collection ring 3, the cooling water outlet water collection ring 4, the small bracket 5, and the clamp block 6, and retaining ring 7 forms. The outer surface of the inner wall 1 of the nozzle is longitudinally grooved to form a cooling water channel; the clamping block 6 is two semicircular bodies matching the shape of the inner wall 1 of the nozzle and the outer shell 2, and the inner surface of the clamping block 6 is a profile curve. The outer surface is a cylindrical surface, and two clamping blocks 6 are combined and installed in the throat section of the nozzle; the rear end of the inner wall 1 of the nozzle along the airflow direction and the outer casing 2 are fixed by a retaining ring 7, and the other end can be properly stretched under high t...
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