在现代工业的连续生产中，柴油发电机由于受工作温度、压力、震动等因素的影响，不可避免的出现渗漏问题。通常解决渗漏的传统方法是打卡具或焊补等工艺，但具有较大的局限性，且有的渗漏受工作环境安全的要求限制，无法现场进行解决。目前针对柴油发电机渗漏最新解决方案是采用高分子复合材料的方法，用高分子材料修复柴油发电机是现场堵漏一个理想方法，特别是在易燃易爆场合下及不停车带压堵漏方面均显示其独有的优越性。不仅可以停车堵漏、密封，而且可以在不影响生产进行的前提下在线待机治理渗漏部位，达到重新密封的目的，经济效益显著。
高分子材料治理柴油发电机组渗漏
发电机组电机受潮以后，必须及时进行烘干处理，根据电机的容量大小和受潮程度，常用的烘干方法有以下两种：
在有条件的地方，将电机整体(最好把定子和转于拆开)放到烘箱(炉)中逐渐升温烘烤．烘箱(炉)应能通风．以便带走电机内的潮气，并且最好是夹层的，里层放电机，在外层加热．里层的温度保持在90一100°C，而且不能有明火、烟尘以及其他可燃性和腐蚀性气体存在。一般要求连续烘烤8～18h，中间可测量几次电机的绝缘电阻值，直至达到规定值并且稳定为止。
交流后，在出线盒内将三相短接，然后使发电机转速上升到暂定转速，保持不变，再调节励磁电流，先使定子短路电流达到额定电流的50%～70%，保持4～5h，然后再增加励磁电流，使短路电流达到额定值的80%一100%，使线圈温度保持在85℃以下，每隔30min测量一次线圈的绝缘电阻和温度，直到绝缘电阻达到规定值井稳定为止。
发电机在进行就地干燥时，一定要做好必要的保温和现场安全措施，具体措施如下：
干燥时，发电机各处的温度限额为：
另外，在干燥过程中、要定时记录绝缘电阻、绕组温度、排出空气温度、铁芯温度的数值，并绘制出定子温度和绝缘电阻的变化曲线，受潮绕组在干燥初期，由于潮气蒸发的影响，绝缘电阻明显下降，随着干燥时间的增加，绝缘电阻便逐渐升高，最后在一定温度下，稳定在一定数值不变。若温度不变，且再经3～5 小时后绝缘电阻及吸收比也不变。用摇表测量转子的绝缘电阻大于1MΩ时，则可认为干燥工作结束。
In the continuous production of modern industry, diesel generators are inevitably affected by factors such as working temperature, pressure, and vibration, resulting in leakage problems. The traditional methods for solving leakage are usually using fixtures or welding repair processes, but they have significant limitations, and some leaks are limited by the requirements of work environment safety and cannot be solved on site. The latest solution for diesel generator leakage is to use polymer composite materials. Repairing diesel generators with polymer materials is an ideal method for on-site leak prevention, especially in flammable and explosive environments and non-stop pressurized leak prevention, demonstrating its unique advantages. Not only can it be stopped for plugging and sealing, but it can also be used for online standby treatment of leakage areas without affecting production, achieving the goal of resealing, with significant economic benefits.
Polymer material treatment of diesel generator leakage
After the generator set motor is affected by moisture, it must be dried in a timely manner. According to the capacity and degree of moisture of the motor, there are two commonly used drying methods:
In places where conditions permit, place the motor as a whole (preferably with the stator and rotor separated) in an oven (furnace) and gradually heat it up for baking. The oven (furnace) should be ventilated to remove moisture from the motor, and it is best to have a sandwich structure with the motor placed in the inner layer and heated on the outer layer. The temperature of the inner layer should be maintained at 90-100 ° C, and there should be no open flames, smoke, or other flammable and corrosive gases present. Generally, it is required to bake continuously for 8-18 hours, during which the insulation resistance value of the motor can be measured several times until it reaches the specified value and stabilizes.
After communication, short-circuit the three-phase in the output box, then increase the generator speed to the temporary speed and maintain it constant. Adjust the excitation current, first make the stator short-circuit current reach 50% to 70% of the rated current, maintain it for 4-5 hours, and then increase the excitation current to make the short-circuit current reach 80% to 100% of the rated value. Keep the coil temperature below 85 ℃, measure the insulation resistance and temperature of the coil every 30 minutes until the insulation resistance reaches the specified value and stabilizes.
When the generator is dried on site, necessary insulation and on-site safety measures must be taken. The specific measures are as follows:
When dry, the temperature limit at various locations of the generator is:
In addition, during the drying process, it is necessary to regularly record the values of insulation resistance, winding temperature, exhaust air temperature, and iron core temperature, and draw the change curves of stator temperature and insulation resistance. In the early stage of drying, the insulation resistance of damp windings decreases significantly due to the influence of moisture evaporation. As the drying time increases, the insulation resistance gradually increases, and finally stabilizes at a certain value at a certain temperature. If the temperature remains constant, and after another 3-5 hours, the insulation resistance and absorption ratio also remain unchanged. When the insulation resistance of the rotor measured with a shaking table is greater than 1M Ω, it can be considered that the drying work is completed.
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