沼气发电机组运行过程中的安全性、可靠性和稳定性对保证生产与经营活动具有重要作用，下面来讲讲沼气发电机组振动故障产生的危害以及原因。

The safety, reliability and stability during the operation of the biogas generator unit play an important role in ensuring production and business activities. The harm and causes of the vibration failure of the biogas generator unit are described below.

振动故障产生的危害

Hazards caused by vibration fault

振动故障是沼气发电机组运行过程中不可避免的现象之一，振动故障不仅会对沼气发电机组正常运行带来巨大影响，而且会给振动机组的安全性造成危害，具体体现在以下几个方面：

Vibration fault is one of the inevitable phenomena during the operation of biogas generator unit. Vibration fault not only has a great impact on the normal operation of biogas generator unit, but also will cause harm to the safety of the vibration unit, which is specifically reflected in the following aspects:

（1）引起发电机零部件金属焊缝疲劳，使之出现裂纹，导致沼气发电机组破坏甚至是报废。

(1) It causes the fatigue of the metal welding seam of the generator parts, which leads to cracks, leading to the destruction or even scrapping of the biogas generator set.

（2）造成沼气发电机组各部位紧密连接部件松动，导致紧固件断裂，加剧被连接部分振动，使其迅速损坏。

(2) The tight connecting parts of the biogas generator set were loosened, which led to the fracture of fasteners, increased the vibration of the connected parts, and quickly damaged them.

（3）加速发电机组磨损，比如大轴的剧烈摆动使轴与轴瓦温度升高，导致轴承烧坏。

(3) Accelerate the wear of the generator set, such as the sharp swing of the large shaft, which increases the temperature of the shaft and the bearing pad, causing the bearing to burn out.

振动故障产生的原因分析

Cause Analysis of Vibration Failure

（1）机械原因：多为沼气发电机组质量问题而导致；同时，可能还会由沼气发电机组轴承间距过大、主轴较细、刚度较低以及零件松动等原因而引发。

(1) Mechanical reasons: mostly due to the quality problems of biogas generator units; At the same time, it may also be caused by too large bearing spacing of biogas generator unit, thinner main shaft, lower stiffness and loose parts.

（2）电磁原因：主要由电机电气部分的电磁力决定，沼气发电机组的振动现象会随着电磁力的增大而增大，而电磁力的主要影响因素有转子圆度等。

(2) Electromagnetic cause: it is mainly determined by the electromagnetic force of the electrical part of the motor. The vibration of the biogas generator unit will increase with the increase of the electromagnetic force, and the main influencing factors of the electromagnetic force are rotor roundness, etc.

本项目中的沼气发电机组转动部分由于受到电磁力的影响，发生振动故障。一般情况下，随着电磁力的不断增大，沼气发电机组的振动现象也会加剧，其中振动明显的是在上机架部分，此时如果没有固定好定子绕组或者转子绕组，其会在电气负荷与电子负荷的共同影响下发生振动现象，随着振动速度的不断加快，振动的现象愈加明显。

The rotating part of the biogas generator unit in this project is affected by electromagnetic force, resulting in vibration failure. In general, with the increasing of electromagnetic force, the vibration of biogas generator set will also intensify. The obvious vibration is in the upper frame part. At this time, if the stator winding or rotor winding is not fixed properly, it will vibrate under the joint influence of electrical load and electronic load. With the increasing of vibration speed, the vibration phenomenon will become more obvious.

（3）水力原因：当沼气发电机组进水流道不通畅时，会有漩涡从进水流道进入沼气发电机组中，引发沼气发电机组振动现象，且振动会随着沼气发电机组的运行情况变化而不断变化。另外，导叶不均匀导致的沼气发电机组振动问题常发生于低比速的沼气发电机组中，这主要是因为沼气发电机组与导叶片的位置较近，导叶片的不均匀也会对沼气发电机组的正常运行产生影响。

(3) Hydraulic reasons: when the water inlet passage of the biogas generator unit is blocked, there will be vortices entering the biogas generator unit from the water inlet passage, causing the vibration of the biogas generator unit, and the vibration will change with the operation of the biogas generator unit. In addition, the vibration problem of biogas generator units caused by uneven guide vanes often occurs in low specific speed biogas generator units, mainly because the position of biogas generator units and guide vanes is close, and the uneven guide vanes will also affect the normal operation of biogas generator units.

如果您在工程项目中也同样遇到了类似问题，若想解决这一问题，需要对引发沼气发电机组振动故障的原因进行分析，以期找到具有针对性的解决办法。更多相关内容就来我们网站http://www.huannengpower.com咨询！

If you also encounter similar problems in the engineering project, if you want to solve this problem, you need to analyze the causes of the vibration failure of the biogas generator unit, in order to find targeted solutions. More relevant content will come to our website http://www.huannengpower.com consulting service