沼氣發(fā)電機組運行過程中的安全性、可靠性和穩(wěn)定性對保證生產(chǎn)與經(jīng)營活動具有重要作用，下面來講講沼氣發(fā)電機組振動故障產(chǎn)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.

振動故障產(chǎn)生的危害

Hazards caused by vibration fault

振動故障是沼氣發(fā)電機組運行過程中不可避免的現(xiàn)象之一，振動故障不僅會對沼氣發(fā)電機組正常運行帶來巨大影響，而且會給振動機組的安全性造成危害，具體體現(xiàn)在以下幾個方面：

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）引起發(fā)電機零部件金屬焊縫疲勞，使之出現(xiàn)裂紋，導(dǎo)致沼氣發(fā)電機組破壞甚至是報廢。

(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）造成沼氣發(fā)電機組各部位緊密連接部件松動，導(dǎo)致緊固件斷裂，加劇被連接部分振動，使其迅速損壞。

(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）加速發(fā)電機組磨損，比如大軸的劇烈擺動使軸與軸瓦溫度升高，導(dǎo)致軸承燒壞。

(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.

振動故障產(chǎn)生的原因分析

Cause Analysis of Vibration Failure

（1）機械原因：多為沼氣發(fā)電機組質(zhì)量問題而導(dǎo)致；同時，可能還會由沼氣發(fā)電機組軸承間距過大、主軸較細、剛度較低以及零件松動等原因而引發(fā)。

(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）電磁原因：主要由電機電氣部分的電磁力決定，沼氣發(fā)電機組的振動現(xiàn)象會隨著電磁力的增大而增大，而電磁力的主要影響因素有轉(zhuǎn)子圓度等。

(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.

本項目中的沼氣發(fā)電機組轉(zhuǎn)動部分由于受到電磁力的影響，發(fā)生振動故障。一般情況下，隨著電磁力的不斷增大，沼氣發(fā)電機組的振動現(xiàn)象也會加劇，其中振動明顯的是在上機架部分，此時如果沒有固定好定子繞組或者轉(zhuǎn)子繞組，其會在電氣負荷與電子負荷的共同影響下發(fā)生振動現(xiàn)象，隨著振動速度的不斷加快，振動的現(xiàn)象愈加明顯。

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：當(dāng)沼氣發(fā)電機組進水流道不通暢時，會有漩渦從進水流道進入沼氣發(fā)電機組中，引發(fā)沼氣發(fā)電機組振動現(xiàn)象，且振動會隨著沼氣發(fā)電機組的運行情況變化而不斷變化。另外，導(dǎo)葉不均勻?qū)е碌恼託獍l(fā)電機組振動問題常發(fā)生于低比速的沼氣發(fā)電機組中，這主要是因為沼氣發(fā)電機組與導(dǎo)葉片的位置較近，導(dǎo)葉片的不均勻也會對沼氣發(fā)電機組的正常運行產(chǎn)生影響。

(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.

如果您在工程項目中也同樣遇到了類似問題，若想解決這一問題，需要對引發(fā)沼氣發(fā)電機組振動故障的原因進行分析，以期找到具有針對性的解決辦法。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://elmasticar.com咨詢！

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://elmasticar.com consulting service