焦化发电机组和柴油发电机组等一样都是作为一种电源设备，机组质量良好，性能稳定。各因素的作用机组难免会出现故障。那么，焦化发电机组功率不足故障什么原因，怎么办？

Coking generator set and diesel generator set are the same as a kind of power equipment, with good quality and stable performance. Due to various factors, the unit will inevitably fail. Then, what is the reason for the power shortage fault of coking generator set and how to do it?

焦化发电机组进、排系统故障：

Coking generator set inlet and exhaust system failure:

1、空气滤清器阻塞；解决方法：清洗空气滤清器芯子或清理纸质滤芯上的灰尘，必要时应更换；

1. The air filter is blocked; Solution: clean the air filter core or dust on the paper filter element, and replace it if necessary;

2、排气管阻塞或接管过长、转弯半径太小，弯头太多；解决方法：清理排气管内积碳：重装排气接管，弯头不能多于三个，并有足的排气截面；

2. The exhaust pipe is blocked or the connecting pipe is too long, the turning radius is too small, and there are too many elbows; Solution: clean up the carbon deposit in the exhaust pipe: reinstall the exhaust pipe, with no more than three elbows and sufficient exhaust section;

发电机组发动机过热，环境温度过高，机油和冷却水温度很高，排温也大大增高；解决方法：检修冷却器和散热器，清理水垢，检查有关管路是否管径过小，如环境温度过高应改善通风，临时加强冷却措施。

The generator set engine is overheated, the ambient temperature is too high, the oil and cooling water temperature is very high, and the exhaust temperature is also greatly increased; Solution: overhaul the cooler and radiator, clean the scale, check whether the pipe diameter is too small. If the ambient temperature is too high, improve the ventilation and temporarily strengthen the cooling measures.

发电机组连杆轴瓦与曲轴连杆轴颈表面咬毛：有不正常声音，并有机油压力下降等现象；解决方法：拆卸发动机侧盖板，检查连杆大头的侧向间隙，看连杆大头是否能前后移动，如不能移动则表示咬毛，应修磨轴颈和更换连杆轴瓦；

The surface of the connecting rod bearing bush of the generator set and the connecting rod journal of the crankshaft is scratched: there is abnormal sound and oil pressure drops; Solution: remove the side cover plate of the engine, check the lateral clearance of the connecting rod big end, and see whether the connecting rod big end can move back and forth. If it cannot move, it means galling. Repair the journal and replace the connecting rod bearing bush;

焦化发电机组燃气系统故障

Gas system failure of coking generator set

1、气压低，供气量不足；解决方法：提高气压

1. Low air pressure and insufficient air supply; Solution: increase the air pressure

2、燃气质量差；解决方法：增大燃气进气量

2. Poor gas quality; Solution: increase the gas intake

3、燃气道堵塞；解决方法:清理；

3. The gas passage is blocked; Solution: clean up;

4、混合器膜片有裂缝；解决方法：更换膜片；

4. Cracks in the mixer diaphragm; Solution: replace the diaphragm;

焦化发电机组气缸盖组件故障：此时不但功率不足，性能下降，而且有漏气、进气管冒黑烟，有不正常的敲击声等现象。

Failure of cylinder head assembly of coking generator set: at this time, not only the power is insufficient, the performance is degraded, but also there are air leakage, black smoke from the intake pipe, abnormal knocking sound and other phenomena.

1、气管盖与机体结合面漏气，变速时有一股气流从衬垫处冲出：气缸盖大螺柱松动或衬垫损坏；解决方法：按规定扭矩拧紧大螺柱螺母或更换气缸盖衬垫，需要的话修刮接合面。

1. There is air leakage on the joint surface between the gas tube cover and the engine body, and a stream of air rushes out of the gasket during speed change: the large studs of the cylinder head are loose or the gasket is damaged; Solution: tighten the large stud nut according to the specified torque or replace the cylinder head gasket, and scrape the joint surface if necessary.

2、进、排气门漏气；解决方法：拆检进、排气门，修磨气门与气门座配合面；

2. Air leakage of inlet and exhaust valves; Solution: disassemble and inspect the inlet and exhaust valves, and grind the mating surface between the valve and the valve seat;

3、气门弹簧损坏；解决方法：更换已损坏的弹簧；

3. Valve spring is damaged; Solution: replace the damaged spring;

4、气门间隙不正确；解决方法：重校气门间隙至规定值；

4. Incorrect valve clearance; Solution: recalibrate the valve clearance to the specified value;

5、活塞环卡住，气门杆咬住引起气缸压缩压力不足；解决方法：拆下检修、清理并更换已损坏的零件；

5. The piston ring is stuck, and the valve rod bites, causing insufficient compression pressure of the cylinder; Solution: dismantle, repair, clean and replace the damaged parts;

焦化发电机组进、排气相位变动；各档转速下性能变差；解决方法：进行配气相位和气门间隙检查。

Phase change of inlet and exhaust of coking generator unit; The performance becomes worse at each speed; Solution: check the valve timing and valve clearance.

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