Jinan jichai diesel generator must clean the fuel oil in the oil tank regularly to prevent water and impurities from appearing in the diesel generator set. Otherwise, impurities or excessive water will appear in the fuel tank of Weichai diesel generator set, and these impurities or water will accumulate on the fuel tank wall and bottom of jichai diesel generator set. If it is not cleaned for a long time, the mud skin will scatter and the light path will be blocked. Therefore, in daily maintenance, develop good hygiene habits and discharge excess separation boxes and ponding.

過熱維修采用數(shù)學方法建立電機發(fā)熱模型。濟柴柴油發(fā)電機組原則上負責低壓電機的熱維護?？諝鉃V清器、機油濾清器和燃油濾清器是易損件。當使用超過500小時時，必須更換新的。風扇皮帶不能太緊或太松。過緊會加速皮帶磨損，縮短使用壽命，增加充電器和水泵的張力，加速濟柴柴油發(fā)電機組發(fā)電機和水泵軸的磨損，增加內燃機的功耗。

The heating model of motor is established by mathematical method. In principle, jichai diesel generator set is responsible for the thermal maintenance of low-voltage motor. Air filter, oil filter and fuel filter are vulnerable parts. When it is used for more than 500 hours, it must be replaced with a new one. The fan belt cannot be too tight or too loose. Too tight will accelerate belt wear, shorten service life, increase the tension of charger and water pump, accelerate the wear of generator and water pump shaft of jichai diesel generator set, and increase the power consumption of internal combustion engine.

過松會使皮帶打滑，降低充電器和水泵微風扇的轉速，影響散熱效率，降低濟柴柴油發(fā)電機組的充電電壓。因此，當皮帶太緊或太松時，必須進行調整。永磁發(fā)電機位于濟柴柴油發(fā)電機組頭部，與濟柴柴油發(fā)電機組同軸同步旋轉。其功能主要為水輪機調速系統(tǒng)提供信號電源，采集濟柴柴油發(fā)電機組的頻率。除此信號電源外，濟柴柴油發(fā)電機組調速系統(tǒng)還通過濟柴柴油發(fā)電機組發(fā)電機出口電壓互感器獲取信號，并向濟柴柴油發(fā)電機組轉速繼電器供電。

Too loose will make the belt slip, reduce the speed of charger and water pump micro fan, affect the heat dissipation efficiency and reduce the charging voltage of jichai diesel generator set. Therefore, when the belt is too tight or too loose, it must be adjusted. The permanent magnet generator is located at the head of jichai diesel generator set and rotates coaxially and synchronously with jichai diesel generator set. Its function is mainly to provide signal power supply for hydraulic turbine speed regulation system and collect the frequency of jichai diesel generator set. In addition to this signal power supply, the speed regulation system of jichai diesel generator set also obtains signals through the voltage transformer at the generator outlet of jichai diesel generator set and supplies power to the speed relay of jichai diesel generator set.

如果裝置安裝時未清洗噴油嘴隔熱套，噴油嘴頭與隔熱套之間有間隙，使燃氣進入間隙，濟柴柴油發(fā)電機組的價格形成隔熱散熱效果，噴油嘴和隔熱套熔化。如果濟柴柴油發(fā)電機組的隔熱套裝置太緊，噴油嘴會產生附加應力。在熱交變載荷和燃油輻射高壓載荷的共同作用下，濟柴柴油發(fā)電機組噴油嘴頭部斷裂，針閥卡死，滴油。此外，如果濟柴柴油發(fā)電機組在維修過程中省略了隔熱套，且濟柴柴油發(fā)電機組的噴油嘴伸入氣缸蓋下方超過4mm的滅火室，它還將增加濟柴柴油發(fā)電機組噴油嘴吸收的熱量，并燃燒噴油嘴。

If the thermal insulation sleeve of the fuel injection nozzle is not cleaned during the installation of the device, there is a gap between the fuel injection nozzle head and the thermal insulation sleeve to make the gas enter the gap, the price of jichai diesel generator set will form a thermal insulation and heat dissipation effect, and the fuel injection nozzle and thermal insulation sleeve will melt. If the insulation sleeve device of jichai diesel generator set is too tight, the fuel injection nozzle will produce additional stress. Under the combined action of thermal alternating load and fuel radiation high-pressure load, the head of fuel injection nozzle of jichai diesel generator set is broken, the needle valve is stuck and oil drips. In addition, if the insulation sleeve is omitted during the maintenance of jichai diesel generator set, and the fuel injection nozzle of jichai diesel generator set extends into the fire extinguishing chamber more than 4mm below the cylinder head, it will also increase the heat absorbed by the fuel injection nozzle of jichai diesel generator set and burn the fuel injection nozzle.