论文部分内容阅读
除电网供电外,钻探设备在一定条件下,以自办小电站电力驱动比用柴油机直接驱动好。 一、有显著的技术效益 1.三相异步电动机具有一定的柔和性,应付钻探设备负荷瞬时多变、大起大落的能力远比柴油机好。 当钻具在钻进和提升时,特别是在处理孔内事故时,动力消耗不断变化,有时突增突减的幅度很大。负荷增大时,异步电动机的转速稍有下降,电磁转矩可以快速增大到与负载扭矩相平衡。而且三相异步电动机的最大输出扭矩为额定扭矩的1.8～2.2倍,超载能力强。 自办小电站供电,可以机动地增减发电量或增减用电机具来调剂用电量,这对于钻探设备负荷多变的特殊需要是十分重要的。 柴油机的最大输出扭矩为额定扭矩的1.05～1.1倍,在动力消耗突增时,柴油机的转速下降,调速器虽然可以加大供油量来提高转速,增大扭矩,但最大也只能增加到1.24倍,
In addition to the power grid, the drilling equipment under certain conditions, in order to run their own small-scale electric drive diesel engine than the direct drive. First, there are significant technical benefits 1. Three-phase asynchronous motor has a certain degree of softness to cope with the instantaneous load changes of drilling equipment, ups and downs of the capacity is far better than the diesel engine. When the drilling tool is drilling and lifting, especially when dealing with bore accidents, the power consumption is constantly changing, and sometimes the sudden surge suddenly decreases greatly. As the load increases, the speed of the asynchronous motor slightly decreases and the electromagnetic torque can rapidly increase to balance the load torque. And three-phase asynchronous motor maximum output torque of 1.8 to 2.2 times the rated torque, overload capacity. Owing to the power supply of small hydropower stations, it is very important for the special needs of drilling equipment to change loads that the power generation capacity can be increased or decreased or the motor power can be increased or decreased. Diesel maximum output torque of 1.05 to 1.1 times the rated torque, sudden increase in power consumption, the engine speed down, although the governor can increase the fuel supply to increase speed, increase torque, but the maximum can only increase To 1.24 times,