Irrigation and water conservancy construction has always been the basic core of production development and the top priority. Most of the irrigation and water conservancy works are small river management, with a wide scope and complicated affairs. They need technical facilities that are easy to manage and have outstanding effects. At present, in terms of farmland water conservancy Hydraulic steel dam Its use is urgently needed and necessary.
Strengthening the construction of farmland water conservancy projects can expand domestic demand in the market economy, which is a huge systematic project. The infrastructure construction of farmland and water conservancy involves many industries and departments. While constructing projects, it can drive the development of building materials, labor force and other industries. It is of long-term significance for sustainable development. With the technological innovation, the traditional dam has begun to fail to meet the requirements of modern diversification. So hydraulic steel dam and numerous Hydraulic dam The manufacturer shall ship it out.
Strengthening the construction of farmland water conservancy can greatly enhance the ability to resist disasters. Although there has been much development in recent years, there has always been some shortcomings in farmland water conservancy. The climatic conditions and geographical conditions of China are very complex and diverse. At the same time, facing frequent natural disasters such as floods and droughts, the task of water control is very arduous. and Hydraulic lifting dam The technical products are the only choice among water conservancy facilities, whether they are flood detention and water stop or navigation and dam release. They are reliable in structure and can play a role under various conditions, which is worthy of trust.
The construction of farmland water conservancy is a long-term battle, which cannot be completed once and for all. However, the durability and easy maintenance of water conservancy buildings undoubtedly bring good news to farmland water conservancy construction. The intelligent system of hydraulic lift dam is easy to operate and maintain. In addition, the cost is relatively cheap and the service life is long, which is suitable for various requirements of farmland water conservancy.
Compared with the well-known large-scale water conservancy project construction, what we can contact daily is basically the small river management, especially putting more attention on the flood control boats in small and medium-sized rivers during the flood season. At present, the types of gates suitable for small ship crossing projects mainly include Steel dam gate , miter gate, hydraulic lift dam and other gates.
Steel dam gate, steel dam gate is generally composed of a rigid dam body with a fixed axis, driving device equipment, etc. The steel dam gate structure adopts a cantilever type around the bottom axis, without bottom gate slot and side gate slot, and is a structure where gate leaves are placed around the bottom axis. The structure itself is highly required, so it is difficult to adapt to the high water head. At the same time, the steel structure of the structure itself also affects the investment.
Miter gates and miter gates are common gates. The working principles of miter gates and miter gates are basically the same. The main difference is that the vertical shafts are located on one side and on both sides respectively. During operation Hoist Push the gate to rotate with the rotation axis, and quickly close the gate. Generally, miter gates are mostly used for large gates, and more miter gates are used for small ship locks. The gates are basically made of steel, so the cost is high. At the same time, both of them need to be equipped with leveling facilities, and the leveling time is long, so the efficiency of ship passing is affected.
There is also a plane vertical lift gate. The disadvantage of this vertical lift bulkhead gate is that in order to meet the requirements of navigation clearance, the gate is lifted very high, not only needs to build a higher lifting platform, but also has a large hoist lift, which takes a long time to lift the gate, and it is difficult to meet the passing capacity of the ship lock. It is also not recommended by many hydraulic dam manufacturers.
The hydraulic lift dam uses the hydraulic rod to drive the gate to rotate up and down around the bottom axis. Because of the rotation around the bottom axis, the opening and closing do not need horizontal pressure, the ship passes quickly, the structure is simple and effective, and the opening and closing are fast and safe. The above types of gate dams are mainly steel structures, while hydraulic lift dams are mainly concrete structures, which can save investment, facilitate management and maintenance, and form a long dam surface through combination, which can rise and fall at the same time, breaking through previous imagination, with unlimited width. At the same time, there are no problems such as large steel dam gate components, high hoisting force, and difficult maintenance. Therefore, it is a type of small ship lock gate with reasonable structure and broad prospects.
