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Diesel generator sets bearings transmission accuracy is not ice maker, and the ring gear diameter, gear modulus, general requirements for gear accuracy grade 9 or 10 in the GB/T10095.2—2001. However, due to the impact of working conditions between the pinion and the bearing ring gear bearing ring gear tooth surface hardening, and the pinion tooth surface hardness generally 60HRC, taking into account the design life, the gear tooth surface quenching hardness requirements not be less than 45HRC.
Standard yaw, pitch turntable bearing rings diesel generator impact energy requirements: -20 ℃ the Akv not less than 27J, the the Akv value in the cold state can be determined in consultation with the user. Wind turbines may work in very cold areas, the ambient temperature down to -40 around the bearing operating temperature of about -20 ~ C,, the bearings must be able to withstand large impact loads at low temperatures, therefore, require bearing rings the material must be done in the quenched low-temperature impact energy test, part of the take on the bearing rings made kind or ring the same performance and the sample under the same heat treatment conditions, -20 ~ C environment impact function test.
First of all, we need to understand that different manufacturers and different power diesel generator sets used oil is not the same, under grupos geradores, the new engine after working for 50 hours for the first time and after repair or overhaul 50 hours. Oil replacement cycle in general and oil filter (filter) at the same time, general oil replacement cycle for 250 hours or one month. Category 2 oil, oil extend working 400 hours after the replacement, but the oil filter (filter) must be replaced.
Are foreign manufacturers and production of high-power engine, so the power unit with more than 800 kilowatts, the domestic manufacturers to produce a net importer of brand pad printer, but the production units of large international companies in the choice of components more willing to under the original capital, so pure single procurement of raw materials more than the cost of lower import unit more competitive in the high-power segment.
Types of equipment currently on the market for power generation has the longest diesel generator set, the price of diesel is rising, many people start using the gas generator sets, gas turbine units can natural gas into electricity, a kinds of small power generation equipment, also known as natural gas generator sets. Gas turbine units are silent diesel generator into two, a combined cycle gas turbine, a gas engine. Gas turbine power is mainly used in large and medium-sized power plant, the gas engine power is relatively small, mainly used in small distributed power plants.