The invention discloses a blocking device of a rainwater drainage open trench and a using method of the blocking device. A first manual winch (11) and a first sandbag (6) in the device are located on one side of a cofferdam (2), and a second manual winch (12) and a second sandbag (7) are located on the other side of the cofferdam. A first rope (81) bypasses the first fixed pulley, one end is fixed on a winding drum of the first manual winch, and the other end is fixedly connected with the first sandbag. A second rope (82) bypasses the second fixed pulley, one end is fixed on a winding drum of the second manual winch, and the other end is fixedly connected with the second sandbag. The first rope and the second rope can be burnt out by flames generated when combustible liquid in the rainwater drainage open trench (3) burns, so that the first sandbag or the second sandbag automatically falls down by means of gravity until the bottom of the first sandbag or the second sandbag makes contact with the bottom of the rainwater drainage open trench, and the rainwater drainage open trench is blocked. The invention discloses a use method of the device. The invention is suitable for combustible liquid normal pressure storage tank areas of petrochemical enterprises.
本发明公开了一种排雨水明沟的阻断装置及其使用方法。装置中的第一手动卷扬机(11)和第一沙包(6)位于围堰(2)的一侧,第二手动卷扬机(12)和第二沙包(7)位于围堰的另一侧。第一绳索(81)绕过第一定滑轮,一端固定在第一手动卷扬机的卷筒上,另一端与第一沙包固定连接。第二绳索(82)绕过第二定滑轮,一端固定在第二手动卷扬机的卷筒上,另一端与第二沙包固定连接。第一绳索和第二绳索可以被排雨水明沟(3)内的可燃液体燃烧时产生的火焰烧断,使第一沙包或第二沙包靠重力自动下落,直至其底部与排雨水明沟的底部接触,将排雨水明沟阻断。本发明公开了上述装置的使用方法。本发明适用于石油化工企业的可燃液体常压储罐区。
Blocking device of rainwater drainage open trench and using method of blocking device
排雨水明沟的阻断装置及其使用方法
2023-10-27
Patent
Electronic Resource
Chinese
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