沼氣發(fā)電機(jī)組運(yùn)行過程中的安全性、可靠性和穩(wěn)定性對(duì)保證生產(chǎn)與經(jīng)營活動(dòng)具有重要作用，下面來講講沼氣發(fā)電機(jī)組振動(dòng)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(dòng)故障產(chǎn)生的危害

Hazards caused by vibration fault

振動(dòng)故障是沼氣發(fā)電機(jī)組運(yùn)行過程中不可避免的現(xiàn)象之一，振動(dòng)故障不僅會(huì)對(duì)沼氣發(fā)電機(jī)組正常運(yùn)行帶來巨大影響，而且會(huì)給振動(dòng)機(jī)組的安全性造成危害，具體體現(xiàn)在以下幾個(gè)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(jī)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(jī)組破壞甚至是報(bào)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(jī)組各部位緊密連接部件松動(dòng)，導(dǎo)致緊固件斷裂，加劇被連接部分振動(dòng)，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(jī)組磨損，比如大軸的劇烈擺動(dòng)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(dòng)故障產(chǎn)生的原因分析

Cause Analysis of Vibration Failure

（1）機(jī)械原因：多為沼氣發(fā)電機(jī)組質(zhì)量問題而導(dǎo)致；同時(shí)，可能還會(huì)由沼氣發(fā)電機(jī)組軸承間距過大、主軸較細(xì)、剛度較低以及零件松動(dòng)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(jī)電氣部分的電磁力決定，沼氣發(fā)電機(jī)組的振動(dòng)現(xiàn)象會(huì)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(xiàng)目中的沼氣發(fā)電機(jī)組轉(zhuǎn)動(dòng)部分由于受到電磁力的影響，發(fā)生振動(dòng)故障。一般情況下，隨著電磁力的不斷增大，沼氣發(fā)電機(jī)組的振動(dòng)現(xiàn)象也會(huì)加劇，其中振動(dòng)明顯的是在上機(jī)架部分，此時(shí)如果沒有固定好定子繞組或者轉(zhuǎn)子繞組，其會(huì)在電氣負(fù)荷與電子負(fù)荷的共同影響下發(fā)生振動(dòng)現(xiàn)象，隨著振動(dòng)速度的不斷加快，振動(dòng)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(jī)組進(jìn)水流道不通暢時(shí)，會(huì)有漩渦從進(jìn)水流道進(jìn)入沼氣發(fā)電機(jī)組中，引發(fā)沼氣發(fā)電機(jī)組振動(dòng)現(xiàn)象，且振動(dòng)會(huì)隨著沼氣發(fā)電機(jī)組的運(yùn)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(jī)組振動(dòng)問題常發(fā)生于低比速的沼氣發(fā)電機(jī)組中，這主要是因?yàn)檎託獍l(fā)電機(jī)組與導(dǎo)葉片的位置較近，導(dǎo)葉片的不均勻也會(huì)對(duì)沼氣發(fā)電機(jī)組的正常運(yùn)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(xiàng)目中也同樣遇到了類似問題，若想解決這一問題，需要對(duì)引發(fā)沼氣發(fā)電機(jī)組振動(dòng)故障的原因進(jìn)行分析，以期找到具有針對(duì)性的解決辦法。更多相關(guān)內(nèi)容就來我們網(wǎng)站http://www.a7716.cn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://www.a7716.cn consulting service