Application case of negative pressure waterworks flexible rubber pipe joint in Shanxi Pianguan Wanjiazhai Water Control Project

Application case of negative pressure waterworks flexible rubber pipe joint in Shanxi Pianguan Wanjiazhai Water Control Project

The official website of Shanghai Songjiang shock absorber Group Co., Ltd. introduces to you:negative pressure waterworks flexible rubber pipe joint in Shanxi Pianguan Wanjiazhai Water Control Project information. Songjiang group provides high-quality negative pressure waterworks flexible rubber pipe joint for many water conservancy projects, and escorts the safe operation of many water conservancy projects.

Introduction to Shanxi Pianguan Wanjiazhai Water Control Project

Wanjiazhai Water Control Project is located in the gorge of Tuoketuo Longkou reach of the north main stream of the Yellow River. It is the first of the eight cascades planned to be developed in the middle reaches of the Yellow River and the starting point of Shanxi Province’s Yellow River Diversion Project. The left bank belongs to Pianguan County, Shanxi Province, and the right bank belongs to Zhungeer banner, Inner Mongolia Autonomous Region. The dam site controls a drainage area of 395000 square kilometers, with a total reservoir capacity of 896million cubic meters and a regulation capacity of 445million cubic meters. It has comprehensive benefits of water supply, power generation, flood control and ice cream prevention.

Wanjiazhai Water Control Project is located on the main stream of the Yellow River in Pianguan County, Shanxi Province. The dam is 90 meters high and 438 meters long. It is a concrete gravity dam; The installed capacity of the power station is 1.08 million KW, and the annual power generation is 2.75 billion kwh; The storage capacity is 896million cubic meters.

Wanjiazhai Water Control Project is a national key project in the ninth five year plan, a leading water source project in Shanxi Province to “divert the Yellow River into Shanxi”, and the first level of cascade development planning in the middle reaches of the Yellow River. The main task of the project is to combine water supply with power generation for peak shaving, and at the same time, it also has the functions of flood control and ice cream prevention. The project is located in the border area between Shanxi and Inner Mongolia, and the surrounding areas are national key energy and chemical bases. Due to the serious soil erosion and water shortage in this area, it has become a restrictive factor for industrial and agricultural production, economic development and ecological environment improvement. At the same time, the North China power grid where the hub is located is dominated by thermal power and lacks hydropower peak shaving. Therefore, the construction of Wanjiazhai Water Control Project will alleviate the shortage of water resources in Shanxi Province and surrounding areas in the 21st century, optimize the energy structure of North China power grid, and is of great significance to promote the economic and social development of northwest and even northern China.

 

Contract introduction of negative pressure waterworks flexible rubber pipe joint in Shanxi Pianguan Wanjiazhai Water Control Project

Application case of negative pressure waterworks flexible rubber pipe joint in Shanxi Pianguan Wanjiazhai Water Control Project

1. the requirements for the negative pressure waterworks flexible rubber pipe jointare very high. Pure rubber cannot withstand negative pressure. For example, if the inner diameter of the pipe is 0.1kg negative pressure, the rubber pipe will suck flat, which is completely different from the outward pressure of the pipe. Therefore, the negative pressure guide cylinder must be added to the inner diameter of the negative pressure. In short, the negative pressure guide cylinder is to add a carbon steel pipe to the inner diameter of the rubber soft joint, but the inner diameter of the joint is smaller than the original inner diameter, With the negative pressure guide cylinder, the rubber flexible joint will not be flattened, so the original vibration isolation and expansion effect of the rubber flexible joint will not be affected. The first thing affected is that the inner diameter of the joint is slightly smaller.

 

2. the negative pressure waterworks flexible rubber pipe jointhas good wear resistance while resisting negative pressure. The internal use of the stainless steel backflow device ensures the safety and practicality of use. The use of a diversion device similar to the stainless steel bellows structure ensures that the rubber pipe joint will not be flattened during use, and the rubber part will not directly contact the powder or mud medium, so the service life of the rubber soft joint is greatly extended.

 

3. the negative pressure waterworks flexible rubber pipe jointis pressurized with flexible steel plate in the inner rubber layer of the rubber pipe joint. The rubber pipe joint will expand under positive pressure. When the rubber flexible joint shrinks and flattens under negative pressure, the steel plate can well prevent the deformation of the rubber flexible joint and ensure that the shape meets the design requirements. This structure is suitable for use in corrosive media. The pressure ring will not directly contact the media to ensure the safety of use.

 

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