急停机的操作是按动主电机停机按钮，然后再进行停机后的善后处理工作。
The operation of emergency shutdown is to press the stop button of the main motor, and then carry out the aftermath treatment work after the shutdown.
1、离心风机突然发生强烈振动，并已超过跳闸值。
1. The centrifugal fan suddenly vibrates strongly and has exceeded the trip value.
2、机体内部有碰刮或者不正常摩擦声音。
2. There are scratches or abnormal friction sounds inside the body.
3、任一轴承或密封处出现冒烟的现象，或者某一轴承温度急剧上升到报警值。d、油压低于报警值并无法恢复正常时。
3. Smoking occurs at any bearing or seal, or the temperature of a certain bearing sharply rises to the alarm value. d. When the oil pressure is below the alarm value and cannot return to normal.
4、油箱液位低，已有吸空现象。
4. The liquid level in the fuel tank is low and there is already a phenomenon of suction.
5、轴位移值出现明显的持续增长，达到报警值时。
5. When the axis displacement value shows a significant continuous increase and reaches the alarm value.