论述了D300 - 42型煤气鼓风机常见的故障。
研究了引起煤气鼓风机组振动的主要原因，风机系统的故障模型和振动机理。
The paper analyses the main reasons of the vibration of the gas blower, the fault model and mechanism of the vibration of blower system.
介绍了煤气鼓风机叶轮腐蚀现象，并简单分析了腐蚀原因，还提出了8项改进措施。
Corrosion phenomenon of gas blower impeller is introduced, the corrosive reason is briefly analyzed, and 8 items of improving measures are put forward.
煤气鼓风机为适应系统煤气量的变化采用改变风机的转速来进行调节是一有效的节能方法。
Adjustment through changing the blower's rational speed in order to adapt the gas blower to the change of gas amount is an efficient energy-saving method.
论述了D300 - 42型煤气鼓风机常见的故障。提出了典型故障原因的分析方法。经改进后取得良好的效果。
Common troubles of type D300-42 gas blower are discussed. Analysis method of typical trouble reason is put forward. Good effect is obtained after improvement.
煤气冷凝鼓风机组技术改造选用D750 -28型鼓风机，采用增速型液力偶合器调节负荷及计算机控制系统。
In a coal gas blower set for condensation were incorporated D750 28 blower and speed up hydraulic coupler to adjust load as well as computer control system.
煤气冷凝鼓风机组技术改造选用D750 -28型鼓风机，采用增速型液力偶合器调节负荷及计算机控制系统。
In a coal gas blower set for condensation were incorporated D750 28 blower and speed up hydraulic coupler to adjust load as well as computer control system.
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