In 2005, by careful technology and market researches, Zhongfu Lianzhong imported manufacture technology and key equipments of large wind-power dynamo rotor blade with grade 1.5MW from Germany, became domestic famous company which first has mass manufacture capacity of wind-power dynamo rotor blade with megawatt grade.
Lianzhong depends on strong technical strength, fast absorbed the imported technology, the manufacture processes are strictly performed according to imported technics and standards, and combined ISO9001 standards, in order to ensure products' excellence characters and quality.
LZ1.5MW rotor blade is one of zhongfu lianzhong's leading products, can cooperate with many 1.5MW wind-power dynamos which designed by Aerodyn company, its aerodynamic and high strengthen & light weight structural design etc. All satisfy with overseas similar products' standards. LZ1.5MW rotor blade's geometrical form let it has excellence aerodynamic capability, can achieve higher wind power catch and using efficiency. LZ1.5MW rotor blade uses vacuum assistance & bag press moulding tools with advanced technical and higher maturity to manufacture, in its structural design, use high capability filling structural with light weight & high strengthen, under ensure blade's strengthen and stiffness requests, not only reduce blade's weight, but also reduce blade's movement noise, fully exhibits composites materials' general capabilities advantages.
LZ1.5MW wind-power rotor blade can steadily work between -20 degree and -50 degree, has excellence capabilities to resist environment and weather. High capability paint layer on rotor blade's surface can effectively resist wind, sand, rain, snow and salt fog's corrosion, and has well UV prevention and strong temperature change resist capability. LZ1.5 rotor blade installs credible lightning prevention system, can resist lightning's damage for rotor blade.
LZ1.5MW rotor blade obtained germany GL authority certificate, now has 72 rotor blades which were formally installed and used in world every wind-power field, the first system has already steadily and effectively operated for 6 years, these success cases show LZ1.5MW rotor blade's reliability, security and applicability.
*Basic parameters
*Total length (m): 37.5
*Maximum string length (m): 3.2
*Standard weight (kg): 5800
*Application parameters
*Control method: Shift and slurry change rules
*Rating power (MW): 1.5
*Application wind field grade: GLIII
*Rotor blade diameter (m): 77
*Rotor blade revolving way: Clockwise
*Rating revolving speedRPM: 17.3
*Rating wind speed (m/s): 11
*3 seconds cutting wind speed (m/s): 35
*Rating/urgent lock torque (KNm): 1378/2067
*Work temperature ): -20--+50
Root joint parameters
*Bolt hole's central round diameter (mm): 1800
*Bolt quantity (kits): 54
*Bolt standard: M30*2
Aerodynamic capabilities
*Design tine speed rate: 7.5
*Maximum wind power utilization modulus (Cp): 0.464
*Air-movement form design: NACA63
Blade length Nominal Power Wind Class Region
31m(Details) 1.25MW GLII
34m(Details) 1.5MW GLII
34m(Details) 2.0MW GLII
37.5m(Details) 1.5MW GLIII
37.5m(Details) 1.5MW GLII
40.3m(Details) 1.5MW GLIII
45.3m 2.0MW GLIII
50.3m 2.5MW GLIII
44m 3.0MW IECI
Lianyungang Zhongfu Lianzhong Composites Group Co., Ltd. Belongs to China Composites Group Co., which is the sub company of China National Building Material Group Corporation. The headquarter of Zhongfu Lianzhong is located in Lianyungang city, Jiangsu Province with branch companies in Thuringia of Germany, Liaoning Province, Neimenggu Province and Gansu Province. The company was founded in 1987, with more than 2000 employees including 458 technicians. With the research, design, production and service of composites products, zhongfu Lianzhong has developed into a national key enterprise producing rotor blades, pipes, tanks, cylinders and high pressure pipes as its main products.
