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风冷和水冷柴油发电机组的区别Aircooled and watercooled generators difference

2022-01-13 29789

风冷发电机组:柴油机为单缸发动机、双缸发动机发电机,用1个到多个大风扇对着发电机机体强制排风散热。一般以汽油发电机和小型柴油发电机为主.风冷发电机组需要安装在敞开式舱室内,噪声较大;风冷发电机组结构简单、故障率低、启动性能好,所需空气量少,风扇消耗功率低,油耗也较低,没有冻裂或过热沸腾危险,利于维护;风冷发电机组适用于高原或缺水或寒冷的地方,不必考虑加水、沸点、冻结等方面的问题,因受到热负荷和机械负荷限制,功率一般都比较小。

Air-cooled generator is a generator with a single-cylinder engine or a double-cylinder engine. One or more large fans are used to force the exhaust air to dissipate heat against the generator. Generally, gasoline generators and small diesel generators are the main ones.Air-cooled generators need to be installed in open cabins, which are noisy; Air-cooled generators have simple structure, low failure rate, good starting performance, and less air required the fan has low power consumption and low fuel consumption, and there is no danger of freeze cracking or overheating, which is conducive to maintenance; Thermal load and mechanical load limit, power is generally relatively small.  

水冷发电机组:柴油机为主要是四缸、六缸、十二缸等大机组,机体内部与外部的水循环,通过散热水箱和风扇带走机体内部产生的热量。水冷发电机组以大型发电机组较多:水冷发电机组结构复杂,制造难度相对较大,对环境的要求比较多,在高原使用时,需要考虑降功率使用和冷却液水的沸点降低,要通过加入一定比例的添加剂来改善沸点和冰点;水冷发电机组冷却效果理想,相同的技术参数的电机,水冷的体积小,重量轻,能量密度大,传热性能比较好;大功率发电机组一般为水冷发电机组

Water-cooled generators are mainly four-cylinder, six-cylinder, twelve-cylinder and other large units. The water circulates inside and outside the body, and the heat generated inside the body is taken away through the radiator and the fan. There are many large-scale water-cooled generators.The water-cooled generator is complex in structure, relatively difficult to manufacture, and has many requirements on the environment. When used in plateaus, it is necessary to consider the use of power reduction and the reduction of the boiling point of coolant water. A certain proportion of additives can improve the boiling point and freezing point; the cooling effect of water-cooled generator  is ideal, the motor with the same technical parameters, the water-cooled motor is small in size, light in weight, high in energy density, and good in heat transfer performance; high-power generators are generally water-cooled power.

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