| 摘要 |
FIELD: hydraulic engineering. SUBSTANCE: main water intake has horizontal ropes and vertical ropes of cellular rope framework. These ropes are secured to bottom sinkers. In this case, in the bottom deep part, where lower part of water proof partition is moved with the help of additional ropes, which run from the cellular rope framework secured to the upper part of movable shutter, and only with their lower end are attached to bottom sinkers on the respective section. Attached to vertical ropes in points of crossing with horizontal ropes are sinkers which hold down the lower movable shutter to the ground. In case of necessity, a float with varying buoyancy moves the shutter. Floats with constant and variable buoyancy tend to set the waterproof partition to the vertical position. In so doing, the of variable buoyancy fulfil also regulating functions at low level of water in water storage basin, in storm situations, in change of water quantity coming to spillway work. Waterproof material (fabric, roll plastic material, aluminium) is attached by means of movable and rigid hooks to vertical ropes. Upper edge of waterproof partition has linear float, and its lower edge has sinker. Horizontal rope separates upper loosened part which becomes damaged by mechanical action of moving floating objects. With opened lower aperture, lower intake takes place, and with its closing, increased pressure on the main water intake increases angle of inclination of waterproof partition to form upper aperture, and upper water intake is effected. EFFECT: provision of reliable optimal structure of main water intake for installation in deep parts of water storage basin. |
