How to deal with the problem of valve damage when using gas generator set? We will give you a detailed introduction as follows, please understand in detail.

　　燃气发电机组在运行过程中，气门是保证发动机在进气阶段尽可能多地吸收混合气体或空气的重要部件，是整个气门分配系统在发动机压缩和工作阶段可靠密封的重要组成部分。如果阀门发生故障，势必影响整个燃气发电机组的运行，还会阻碍电力的稳定输送，所以用户必须掌握一些阀门故障的修复方法。下面将从的角度介绍一些阀门故障排除的基本方法。

　　During the operation of gas generator set, the valve is an important part to ensure that the engine absorbs as much mixed gas or air as possible in the intake phase, and it is also an important part of the whole valve distribution system in the engine compression and working phase. If the valve fails, it will affect the operation of the whole gas-fired generator set and hinder the stable transmission of power, so the user must master some methods to repair the valve failure. The following will introduce some basic methods of valve troubleshooting from a professional point of view.

　　仪表测量方法:潍柴汽轮发电机组一般采用螺杆式压力计。使用时，将气缸压力表的接头旋进喷油器座孔内，然后带动曲轴与起动器旋转4 ~ 6s，使柴油机转速保持在300r/min左右。气缸压力表指示的压力是被测气缸的压缩力。记下测量值，然后向缸内加入少量油，转动柴油发电机，如果测得的压力明显不同于正常，说明缸内测试阀门失效。

　　Instrument measurement method: screw type pressure gauge is generally used in Weichai steam turbine generator set. When in use, screw the connector of cylinder pressure gauge into the injector seat hole, and then drive the crankshaft and starter to rotate for 4 ~ 6S, so as to maintain the diesel engine speed at about 300r / min. The pressure indicated by the cylinder pressure gauge is the compression force of the cylinder under test. Note down the measured value, then add a small amount of oil into the cylinder and turn the diesel generator. If the measured pressure is significantly different from normal, it means that the test valve in the cylinder is invalid.

　　经验排除法:判断阀门故障是否有三种情况:燃气发电机组在运行过程中速度不稳定，排气管有“突发性、突发性”响声，异常冒烟(黑烟或蓝烟)。当柴油发电机组具有这三种工况时，采用单缸截油法确定缸的故障。首先将各气缸的高压管断开，观察高压管断开前后各气缸的工作状态变化。如果在气瓶高压油管断开后的后排出现黑烟消失或减弱，气瓶就有麻烦了。如果缸内高压油管断开后排黑烟或蓝烟现象不消失，说明缸内无故障。各高压油泵油管断开后如未发现故障缸，应分析柴油机常见故障。

　　Experience elimination method: judge whether there are three kinds of valve faults: the speed of gas generator unit is unstable during operation, the exhaust pipe has "sudden, sudden" sound, and abnormal smoke (black smoke or blue smoke). When the diesel generator set has these three working conditions, the single cylinder cut-off method is used to determine the cylinder failure. First, disconnect the high-pressure pipe of each cylinder, and observe the working state change of each cylinder before and after the disconnection of the high-pressure pipe. If the black smoke disappears or weakens after the high-pressure oil pipe of the gas cylinder is disconnected, the gas cylinder will be in trouble. If the phenomenon of black smoke or blue smoke does not disappear after the high-pressure oil pipe in the cylinder is disconnected, it means there is no fault in the cylinder. If no fault cylinder is found after the oil pipe of each high-pressure oil pump is disconnected, common faults of diesel engine shall be analyzed.

　　阀门在燃气发电机组中起着重要的作用，一旦发生故障，必须立即找人员进行维修。阀门属于易损件，当严重燃烧或断裂时，一般应更换同类型的新产品。若锥体表面积碳过多，点蚀或锈蚀面积小，可用于阀门磨床或手动研磨，以达到阀门密封燃烧室的效果。在排除故障时，工作人员一定要细心和耐心，并注意对问题的总结和记录，及时积累相关经验，以防止再次发生阀门故障。

　　The valve plays an important role in the gas generator set. Once it breaks down, it must be repaired by professionals. The valve belongs to vulnerable parts. When it is seriously burned or broken, the new products of the same type shall be replaced generally. If the surface area of the cone is too much carbon and the pitting or rusting area is small, it can be used for valve grinder or manual grinding to achieve the effect of valve sealing combustion chamber. When troubleshooting, the staff must be careful and patient, pay attention to the summary and record of problems, and timely accumulate relevant experience to prevent the valve failure again.