Automatic water injecting and discharging counter weight tanks for gates

Abstract

The present invention relates to the technology of sluice gates in water conservancy projects that need to be counterweighted due to insufficient closing force when closing. That is, automatic water supply and drainage water tanks are used to counterweight the gates to complete the safe closing of the gates. At present, a large number of water gates are closed by falling due to their own weight when the gate is closed. In some cases, due to insufficient closing force of the gate, counterweights are usually installed to increase the closing force of the gate. However, adding counterweight additionally increases the opening force of the gate, increases the cost of the opening and closing equipment, and increases the load and structural cost of the frame bridge. The invention sets up an automatic water supply and drainage counterweight water tank. When the gate is opened, the water tank is in an anhydrous state, which does not increase the gate opening force. When the gate is lifted into place, it starts to automatically fill the water tank. After the water tank is full, the gate's own weight and water The gate closing force requirements are met, and the gate falls and closes safely. The counterweight water tank meets the requirement that the opening force remains unchanged when the gate is opened and the closing force is increased when it is closed.

Description

technical field [0001] The invention relates to the technology of counterweighting the gate due to insufficient closing force when the sluice gate in the water conservancy project is closed, that is, an automatic water supply and drainage water tank is used to counterweight the gate to complete the safe closing of the gate. Background technique [0002] Large and medium-sized sluices in the lower reaches of the Yellow River, including diversion sluices and flood diversion sluices, widely use flat steel gates. The steel gates are light in weight, simple in structure, and easy to open and close; When the gate is opened, the frictional resistance of the sediment is relatively large, and the opening force of the gate also increases significantly. At the same time, when the gate is closed, the hoist-type hoisting equipment usually used is closed by the gate's own weight. Considering factors such as sediment friction resistance, water head, and flow velocity, the closing force of ...

AI Technical Summary

Problems solved by technology

However, the result of increasing the counterweight is an additional increase in the opening force of the gate, which increases the cost of the hoist, increases the load of the hoist frame bridge, and increases the structural cost.

Therefore, increasing the closing force of the gate by means of counterweights not only increases the cost of the gate and hoist but also increases the complexity of the superstructure of the sluice, which needs further improvement and optimization

Images