Sinovel SL1500 general faults of gearbox oil temperature is high resolution

Sinovel SL1500 general faults of gearbox oil temperature high resolution 2019 - 01 - 16 hai-lin zhang Hou Zhenyu ( Huadian power international) 【 Abstract 】 China's wind power market after years of rapid growth are moving in the steady development, and is leading the Chinese wind power development in Inner Mongolia. In behind the fast development, the scarcity of wind power maintenance technician, is particularly prominent. Combining with the author's own in the north of qinghe huadian wind encountered in the work of the general faults of gearbox problem of high oil temperature in the parsing, and try to explain to how to deal with these problems. 【 Keywords 】 Gear box; The oil temperature; Oil cooling fan wind is the wind effects on the blade, driven rotor rotation. Rotation of the rotor drive gearbox spindle rotation and the kinetic energy input gear pair. After level 3 speed, high torque, low speed of gear lieutenant input kinetic energy into kinetic energy to the low torque, high speed, through the coupling is passed to the generator. Generator will input eventually converted to electrical energy and kinetic energy to the grid. And friction in gear box, heat is inevitable. At this point, the gearbox oil cooling system offers the potential for its continuous work. Gear box oil cooling system failure, is a direct result, the oil temperature is too high, making fan limit power or downtime. Gear box oil cooling system failure caused by high oil temperature problems generally consider two aspects: one is that the oil cooling system failure; The second is, gear oil circulation, cause gear oil is not fully heat dissipation. In view of the above two aspects of the gear box oil temperature is too high, we have and oil circulating oil cooling system to do the following analysis: 1. Check the temperature sensors are in good condition. 2. Check the oil cooling fan motor and electrical circuit can work properly through separate open oil cooling fan motor, fan control panel to check the work efficiency of the oil cooling fan actual ventilation cooling effect. Open the oil cooling fan motor terminal box, check the motor connection, whether in motor speed mode to make it work. If in the low speed mode, does not automatically cut to the high speed of motor model, will affect the heat dissipation effect, it needs to connect to the high speed of motor model. A few years of the wind power field work also verify the oil temperature is too high, oil cooling fan fault is one of the main inspection items. Found to be the fault of the oil cooling fan need to change or remove the maintenance, general need tools are: small, big, adjustable wrench, a word of M5 open end wrench, ratchet socket, socket head, threaded fastening adhesive, crowbar, etc. 3. Check oil cooling heat sink clean degree of wind farms in remote areas in sand blown, and effective wind energy density in 300 w/m2, as a result, poor environmental conditions: big, high temperature, cold wind dust, flying sand is serious, oil cooling heat sink Kong Yi blocked, affect the heat dissipation effect. This is each fan in practical operation are facing the high limit of power of environmental factors, to strengthen patrol, clear in time. 4. Check whether the oil is flowing check above is normal, need to check whether the oil circulation is smooth, touch tubing, determine whether the tubing inside the oil temperature change; Check the gear oil impurities, scrap iron, if too serious can change the gear oil; Check whether the filter is blocked, filter as its name implies is to gear oil filter, is a gear oil cleaner, pay attention to maintenance, replacement is necessary in a timely manner. General filter replacement need tools are: small word, adjustable wrench, small barrels, cloth, etc. Huadian power international north of qinghe farm work experience, tell yourself because of fault gear box oil temperature high limit power problem can be solved, from the above several aspects rather than failure high limit has been plagued by everyone in the north of qinghe power problem. Perhaps the fan design flaws; May be the bad environment, no matter what the company profit, enterprise development, the problems to solve, and everyone in the north of qinghe trying, more hope that the man of insight to discuss and study!