Non-middle-frusta steel gate capable of lodging

Abstract

The invention discloses a middle pier free steel gate capable of being fallen down. The invented steel gate comprises a bottom plate (23), and is characterized in that the bottom plate (23) is connected to a water retaining panel (1) which is connected to at least two supporting racks (4) connecting to supporting rack moving devices. A rotating shaft (6) is disposed under the water retaining panel (1) which is provided with a globoidal shape. One end of a flexible loose sheet (5) is connected with the lower end of the water retaining panel (1), and the other end thereof is connected with the bottom plate (23). The invented steel plate does not block water and has a good flood discharge effect. The invented steel gate is provided with a low cost, uniform force, and a long service life, and can be used conveniently and safely.

Description

Technical field: [0001] The invention relates to a lodging steel gate without a central pier and belongs to the technical field of water conservancy barrages. Background technique: [0002] With the rapid development of small hydropower in my country, rubber dams are far from meeting the needs of small hydropower, especially in the mountainous rivers in the south, where the water level rises and falls suddenly. At present, rubber dams are generally used as the leading water retaining structures for small hydropower in my country. Rubber dams do have many advantages as water retaining structures. They are simple in structure, flexible in use, save three materials, low in cost, and widely used. However, from the current situation in my country According to the advanced rubber dam bag production process and dam bag raw materials, the maximum rubber dam can only reach 6 meters, and the water resources cannot be fully utilized. In addition, rubber dams are easily damaged by float...

AI Technical Summary

Problems solved by technology

At present, rubber dams are generally used as the leading water retaining structures for small hydropower in my country. Rubber dams do have many advantages as water retaining structures. They are simple in structure, flexible in use, save three materials, low in cost, and widely used. However, from the current situation in my country According to the advanced rubber dam bag production process and dam bag raw materials, the maximum rubber dam can only reach 6 meters, and the water resources cannot be fully utilized.

In addition, rubber dams are easily damaged by floating objects such as ice and miscellaneous trees. If the management is not good or the flood comes urgently, the dam collapses not in time, causing the dam bag to vibrate, which will cause the dam bag to break

Several typhoons and heavy rains in the south in 2006 damaged the rubber dam. Because of the inability to coffer the dam and repair the dam bag, the golden season of power generation was missed, causing heavy economic losses, which cannot be measured.

The traditional steel gates mainly include flap gates and hoist gates: although the flap gates are cheap, when floods come and need to be turned over to release water, they are sometimes stuck by floating objects and cannot be turned over. There will be automatic opening of the gate, which will easily cause casualties and property losses, especially in the south where there are many floating objects in the river, this phenomenon is more serious. In addition, the water retaining height of the flap gate is low

Opening and closing gate: It has the advantages of convenient opening and closing, safety and reliability; but it has the disadvantages of large investment, long construction period, and long hydropower recovery period. Moreover, many rivers in southern my country are deep and the flood flow is large. obvious

Due to the water blocking of the middle pier and the high water level, the original embankment design standard cannot meet the specification requirements, making the project impossible to implement

And when the above two kinds of steel gates are installed in the river channel, a middle pier must be built every 10 meters to fix the lifting equipment. Sometimes floating objects are easy to block the steel gate, which cannot be discharged in time as required, and the steel gate is easy to be damaged, and the cost is high and the investment is large

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