一、焦化發電機組并機時振動大的原因

　　1、 The reason for the large vibration during the parallel operation of coking power generation units

　　1.焦化發電機組不平衡

　　1. Unbalanced coking power generation unit

　　在發電機并機系統中，機組不平衡是導致振動的主要原因之一。焦化發電機組不平衡的表現形式是轉子的質量分布不均勻，導致轉子的離心力不平衡，

　　In the generator parallel system, unit imbalance is one of the main causes of vibration. The manifestation of imbalance in coking power generation units is the uneven distribution of rotor mass, which leads to an imbalance of centrifugal force in the rotor,

　　2.轉子偏心

　　2. Rotor eccentricity

　　轉子偏心是指轉子的中心軸線與軸承中心軸線不重合，也是造成振動的常見原因。轉子偏心會導致轉子在旋轉時產生不平衡的離心力，

　　Rotor eccentricity refers to the misalignment between the central axis of the rotor and the central axis of the bearing, which is also a common cause of vibration. Eccentricity of the rotor can lead to unbalanced centrifugal force during rotation,

　　3.軸承損壞

　　3. Bearing damage

　　軸承在發電機并機系統中起著支撐和定位的作用，如果軸承損壞或磨損過度，會導致轉子的運轉不穩定，

　　Bearings play a supporting and positioning role in the generator parallel system. If the bearings are damaged or excessively worn, it can lead to unstable operation of the rotor,

　　4.定子或轉子的過熱

　　4. Overheating of stator or rotor

　　在發電機并機系統中，定子或轉子的過熱也會導致振動現象的出現。這是因為過熱會導致定子或轉子的材料性能發生變化，從而影響轉子的平衡性。

　　In the generator parallel system, overheating of the stator or rotor can also lead to vibration phenomena. This is because overheating can cause changes in the material properties of the stator or rotor, thereby affecting the balance of the rotor.

　　二、發電機并機時振動大的調整方法

　　2、 Adjustment method for large vibration during generator parallel operation

　　1.機組平衡調整

　　1. Unit balance adjustment

　　機組平衡調整是解決機組不平衡問題的有效方法。具體步驟是先對機組進行靜平衡，然后進行動平衡，進行振動測試，確保機組運轉平穩。

　　Unit balance adjustment is an effective method to solve the problem of unit imbalance. The specific steps are to first perform static balancing on the unit, then perform dynamic balancing and vibration testing to ensure smooth operation of the unit.

　　2.轉子偏心調整

　　2. Adjustment of rotor eccentricity

　　轉子偏心調整是指對轉子進行調整，使其中心軸線與軸承中心軸線重合。具體步驟是先用儀器檢測轉子的偏心情況，然后對轉子進行調整，進行振動測試，確保轉子運轉平穩。

　　Rotor eccentricity adjustment refers to adjusting the rotor so that its central axis coincides with the central axis of the bearing. The specific steps are to first use instruments to detect the eccentricity of the rotor, then adjust the rotor and conduct vibration testing to ensure smooth operation of the rotor.

　　3.軸承更換

　　3. Bearing replacement

　　如果軸承損壞或磨損過度，需要及時更換。更換軸承時，需要注意軸承的型號和規格，確保更換后的軸承能夠與原軸承相匹配。

　　If the bearing is damaged or excessively worn, it needs to be replaced in a timely manner. When replacing bearings, it is necessary to pay attention to the model and specifications of the bearings to ensure that the replaced bearings can match the original bearings.

　　4.控制溫度

　　4. Control temperature

　　為了避免定子或轉子的過熱，需要控制好發電機并機系統的溫度。具體方法包括加強通風、降低負載、增加冷卻水量等。

　　To avoid overheating of the stator or rotor, it is necessary to control the temperature of the generator parallel system. The specific methods include strengthening ventilation, reducing load, increasing cooling water volume, etc.

　　總之，焦化發電機組并機時振動大是電力系統中常見的問題，需要及時采取措施進行調整。通過焦化發電機組平衡調整、轉子偏心調整、軸承更換和控制溫度等方法，可以有效地解決振動問題，保障電力系統的安全穩定運行。

　　In short, the large vibration during the parallel operation of coking power generation units is a common problem in the power system, and timely measures need to be taken to adjust it. By adjusting the balance of coking power generation units, adjusting rotor eccentricity, replacing bearings, and controlling temperature, vibration problems can be effectively solved to ensure the safe and stable operation of the power system.

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