The classification of the gate

gate classification method is more, mainly include: (1) according to the gate of the nature of the work can be divided into working gate, bulkhead gate and emergency gate. Working gate also calls the main gate, can open/close in moving water. Bulkhead gate in work before the gate. Used for buildings or short-term manger when working gate such as maintenance, general opening and closing in static water. Emergency gate in deep hole working gate before, more used in buildings or equipment are in an accident, can open in dynamic water closed in static water; And make maintenance gate, also known as accident repair gate; Need emergency shutting of the gate is closed in the limited time, called the gate. (2) according to the gate closed the door with the surface of the relative position is divided into top gates and DTH type gate. (3) according to the appearance of the door leaf shape can be divided into plane gate and arc gate, miter gate, arched gate, the spherical valve and cylinder valve, etc. (4) according to the manufacture of door leaf material divided into steel, cast iron is set TongZha door, wooden gate, the reinforced concrete gate gate and composite materials.
in addition, some gates such as hydraulic automatic flap gate can use lifts, referred to as the hydraulic automatic gate. Choose gate form need to consider its position in the hydraulic structure, size, design head, use conditions, manufacturing capabilities, and technology factors such as installation, requirements do discharge flow condition is good, check the water tight, opening and closing force is small, easy and flexible operation, easy maintenance, etc. Plane gate and arc gate is the most commonly used type door. In working gate, the large open end gates and high head DTH gates multi-purpose radial gate, on the lock miter gate of choose and employ persons and more cross gate and bulkhead gate and emergency gate with flat gate. Manufacturing materials in modern multi-purpose steel door leaf, weight of reinforced concrete used for the need to borrow more shut down construction diversion bottom hole sealing gate. Moreover, in pressure piping used in door leaf, the shell of hoisting machinery and the integration of control facilities, known as the pneumatic valve.