The rapid development of the national economy has led to serious shortage of state power. The self provided diesel generating set is a good complement to the power shortage of the enterprise. It is a contradiction and a growing headache for companies eager to buy diesel generators to import or make their own. First, we should objectively and rationally analyze all aspects of purchase:
1, quality: many consumers think that the quality of home-made machines is not very good, but in fact it is not. The quality of the domestic diesel engine has been very excellent. The key is whether you bought the original genuine goods. If you buy fake goods, the quality is really bad. The import of diesel generating sets is also very serious, and the quality is also very bad. When the refurbished imported diesel engine is not used in actual use, many of the insiders are unlikely to be identified by the appearance, but the domestic diesel generator sets can be randomly asked to identify with the pedestrians. Even to avoid counterfeit goods, the quality of most brands of imported machines is not better than that of domestic machines, and even some brands are not as good as that of some famous brands of domestic machines. The characteristics of the domestic machine are durable and able to adapt to the use of the evil force environment, and the imported diesel engines have higher requirements for the working conditions. Generally, it is better to use the environment for the use of fire reserve and so on, and it is more suitable to buy under the circumstances of less use.
2, noise: the decibel nominal value of the imported machine is calculated according to "above", and the decibel nominal value of the domestic generator is calculated according to "less". This is the reason that we have a much lower noise than the domestic machine when we look at the technical parameters. In fact, the decibel of the imported machine is slightly lower than the domestic machine. Whether it is the import machine or the domestic machine, as long as it is equipped with a complete set of complete sets of silencers, the noise can reach the national standard, besides, the machine room can also isolate a part of the noise. People do not feel much noise out of doors.
3, maintenance and accessories: the quality of the generator set is not good enough. There is no fault. It involves maintenance and accessories. Home-made machine maintenance is more convenient, especially accessories, many diesel engine accessories can be purchased in domestic county-level cities. The imported diesel engine is characterized by relatively small problems, but in case of a breakdown, parts and components will be replaced and the price will be higher. For example: a new oil pump for domestic diesel generating set is only 1/4 to 1/3 for the cost of the oil pump of the imported diesel engine, which is not disastrous for the enterprise. If it is necessary to change parts to the headquarters, this can take a few months, and the diesel generator is just a corner in this period. A lot of scrap iron in the enterprise will probably stop.
4, fuel consumption: the same as noise: the import machine is calculated according to "more than", and the domestic machine is calculated according to "< < < <"). In general, the domestic machine consumption is less than 209 g to 230 grams per kilowatt per kilowatt per kilowatt hour under full load, and the import machine is more than 201 g to 220 g per kilowatt per kilowatt hour in the case of full load use. Users can calculate a reasonable purchase plan from the difference between the imported machine and the domestic machine according to their actual use time.
5, price: in fact, the import machine in the case of tariff is not much higher than the cost of domestic machine, or is equivalent to the same type of domestic price, but the sale price is much higher than that of domestic generator set. This is also a complete set of imported diesel engine manufacturers to make full use of the psychology of the people to earn high profits, but some brands of imported diesel engine prices are far lower than the price of the same power domestic diesel engine, the reason is inconvenient to "guess".
6. Base with fuel tank: Some imported diesel generator fuel tank with the bottom, the overall feeling is better, compact structure, beautiful appearance. But there are also shortcomings: the bottom oil tank is usually made of organic synthetic plastics. It is easy to dissolve with diesel oil. The domestic diesel oil contains organic impurities and more water, which catalyzes the bonding. The mixture of the diesel oil and the tank will plug into the oil pipe, which causes the oil road to be unobstructed and the generator set is difficult to start. After starting, the rotating speed is unstable, and the failure to stop the machine without reason. The bottom tank is not easy to drain and maintain, resulting in the formation of oil deposits. In addition, the bottom oil tank is imported as a unit of spare parts and its price is higher. Therefore, it is better for users to use the external fuel tank for maintenance and maintenance, and also to increase the oil injection pressure. If the bottom tank is equipped, it is better to pad the unit or set up the drain pipe for cleaning and maintenance.
