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According to Liu Dongyuan, general manager of the State Power United Power Co., Ltd., the company was established on January 6, 2010 by the Ministry of Science and Technology as the "National Key Laboratory for Wind Power Equipment and Control". This laboratory covers an area of ​​nearly 10,000 square meters and consists of 5 research rooms and 2 centers.
Liu Dongyuan said that the laboratory will focus on the research and development of wind power equipment and control technologies. He will pay equal attention to basic research and applied technologies, and will focus on wind turbine generator design and simulation system technology, anti-fatigue design of transmission chain and advanced manufacturing technologies, and wind turbine blades. The research direction of high-efficiency airfoil and aerodynamic structure design technology, wind turbine control system and grid connection technology, etc. lay the foundation for the realization of the wind power industry in China from "technology-induced" to "technological lead."
On that day, the first batch of six 60HZ 1.5MW wind turbines exported to the United States produced by Guodian United Power were shipped from the factory.
Male Coupling Connector Type:
End through connector, straight connectors, tees, elbows, with live nut joints, Swivel joints, plug, transition joints
Composed of dual ferrule fittings: Before the snap ring, after the snap ring nut
Materials commonly used are stainless steel and carbon steel
NPT, PT, G is the pipe thread.
NPT is National (American) Pipe Thread abbreviation belong American standard tapered pipe thread 60 degree, for North America. National standards can be found GB / T12716-1991
Pipe Thread PT is an abbreviation, is 55 degrees sealing cone pipe thread, is a Whitworth thread family, more for Europe and the Commonwealth countries. Commonly used in water and gas pipe industry, defined as 1:16 taper. National standards can be found GB / T7306-2000
G is 55 degrees non-thread sealing pipe thread, is a Whitworth thread family. G represents a threaded barrel mark. National standards can be found GB / T7307-2001
Also thread 1 / 4,1 / 2,1 / 8 mark refers to the thread diameter in inches.
Insiders usually points to refer to the thread size, one inch equals 8 points, 1/4-inch is 2 points, and so on.
G is the pipe thread collectively (Guan), divided into 55, 60 degrees are functional, commonly known as a round tube. That thread processing is made by a cylindrical surface.
ZG commonly known as the funnel, that thread processing by a conical surface made of pipe joints in general are like this, the old domestic thread standard male thread Rc labeled as R
On June 8, the first “State Key Laboratory of Wind Power Equipment and Control†project in China was laid and the construction unit of this project was Guodian United Power Technology Co., Ltd.