Water curtain accelerated cooling device for medium thickness plate on line rolled

The utility model provides a technical proposal of a water curtain accelerated cooling device for medium thickness plate on line rolled, mainly comprising elevated water tanks with a water inlet pipe, upper water-curtain mechanisms and lower water-curtain mechanisms up-down corresponding on roller ways; the upper water-curtain mechanisms and the lower water-curtain mechanisms are connected with the elevated water tanks through upper water-curtain water supply pipes and lower water-curtain water supply pipes. In the proposal, one upper water-curtain mechanism and one corresponding lower water-curtain mechanism form a water-curtain group. The device is provided with 3-7 water-curtain groups. The upper water-curtain mechanisms and the lower water-curtain mechanisms both adopt horizontal narrow gap water-curtain nozzles which form water-curtains 3.0-8.5 mm thick. The upper water-curtain mechanisms are also provided with water-curtain width control devices. Each water-curtain mechanism is connected with the elevated water tanks through separate water-curtain water supply pipes which are connected in series with water-curtain electric-driven flow adjusting valves, water-curtain diaphragm valves and water-curtain effusion meters.