Diesel generators by structural approach can be divided into fixed and mobile (trailer) units; by mode of operation can be divided into single units and parallel operation unit; control by ordinary manual can be divided into units Automation unit, Smart Communications remote control unit; Technical indicators can be divided into Class I power plant, power station Ⅱ , Ⅲ type power station; by capacity can be divided into from 1 kw to 3150kw stall the power unit.
China 's diesel generator market in recent years a rapid development, from 2003 to 2007 due to the power shortage, China 's diesel generators rapid development of the market, leading to shortages of power crunch occurred, some factories, Standby Power Enterprises has become a necessary task, the sales of units in this period surge. causing manufacturers to supply the output .
Diesel generators to sustain strong There were two main reasons. First, many diesel generators for emergency power generation, hospitals, banks, airports, telecommunications and other industries standby power, Intermittent belonging to oil equipment, and the oil price increases reflect less sensitive, less cross-elasticity of demand. Therefore, this part of the market demand for temporary increases in oil prices will not be affected. Second, in many application areas, a lack of diesel generators requires alternative products. Diesel generators as a mobile power source, which makes it in many areas, are difficult to replace, such as ship electricity, Oil exploitation of the need for mobile field operations, diesel generators in these markets to be widely used. Whenever summer, the electricity supply is insufficient, the diesel generators or diesel generators will be best-selling.
However, the present, with the supply of electricity to ease the tension, as well as years of large water conservancy and hydropower construction, Rural and small hydropower building together with other such as wind power generation, nuclear power generation, Power Plant to enable the establishment of China's power shortage to ease the dilemma, therefore, diesel generators in the overall sales of the second half of 2007 have been alleviated, and The increase in fuel prices has also to some extent limit the diesel generator market development. However, the current situation is still considerable demand; a number of hospitals, banks, airports, Outdoor venues will be operating as an emergency diesel generators essential use.
Diesel generators on the market to such a wide range of applications are still in its specific characteristics. First, the diesel generators with capacity levels, the international product consists of several kilowatts to tens of thousands of kilowatts, the nation's largest for the several thousand kilowatts, the users with a lot of room for choice; second, and the supporting equipment compact structure, flexible installation locations, as long as the water-cooled 34 -82L /KWH Turbine 1 / 10; Third, high thermal efficiency, Low fuel consumption and thermal efficiency of 30 ~ 40%; Fourth, rapid start, and would soon reach full power. an emergency can be achieved within minutes full load, while the short course stands, with frequent stop for the convenience of users; 5, 6) Single smaller capacity, the operating technique is relatively simple, easy operation staff in general. Simple maintenance, maintenance convenience, fewer personnel required to operate in the maintenance reserve a small amount; Sixth, diesel generators for power generation and the construction of a comprehensive cost minimum. Sixth, low operating costs, can use a variety of fuels, demand for low-quality fuel, suitable for burning high viscosity fuel oil and the heavy oil price far below the light diesel; Seventh, high reliability, output power stability, Power generation is usually rated by the nine O operation. Therefore, the mobile power plant diesel generator has good prospects.
Diesel generators are a technology-intensive products, the majority of ship power plants, Mobile Power Station and power station by emergency diesel generators Group. Along with the development of the national economy, the diesel generators requirements has been increasing year by year, and its function, technical performance requirements are also increasing
China's diesel generators in mechanical properties, electrical properties, performance, reliability, routine maintenance and service life with the international advanced level, but there is a considerable gap, the main features: (1) Unit type less choice for a smaller; (2) dynamic economy, reliability, and other technical performance low Compact enough structure, high vibration and noise; (3) Diesel Engine Application of new technologies less intelligent, low degree of automation. These shortcomings make homemade diesel generators are not currently meet the requirements of the new ship. It had to import foreign models of a variety of marine diesel engine (such as Cummins, latency, etc.) generators (such as Stanford, Siemens, etc.), air circuit breakers and meters and other production technologies, to meet the domestic shipbuilding industry's needs. As diesel generators from diesel engines, generators and control devices composed of three parts. any part of which level of technical development and can promote other aspects of the development, thereby enhancing the diesel generators overall performance, the three parts between the technical level mutual promotion.
At present, China 's diesel generators concentrate at the senior secondary market and low-end markets. in the high-end market abroad mainly generators and ancillary mainly imported parts, at the end of the market mainly foreign parts, and foreign brands are assembled mainly domestic; At the lower end of the market are generally for domestic products and accessories, and if Weichai, Chai on the diesel generators which have a majority of the exports, and the original foreign brands in the domestic and assembly of diesel generators so on occupied 70% -80% of the market share.
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