用闸流晶体管(thyristor)控制钻机是一个相当新的设想。为了更好地了解其应用,必须简单地回顾钻机动力的历史。虽然以蒸汽为动力的钻机现在已经过时,但蒸汽动力在动力分配和动力利用方面确有某些优点。蒸汽可从各锅炉以常压进入一个共同的集管(图1)。然后用各钻井设备上的节流阀来控制其动力大小。亦即来自一台或数台锅炉的动力可以以任何量的变化提供给每一钻井设备由于移运性、燃料节约、锅炉用水等问题方面的要求日益增加,后来发展了多台柴油机併 Using a thyristor to control the rig is a fairly new idea. In order to understand its application better, one must briefly review the history of rig power. Although steam-powered rigs are now out of date, steam power does have certain advantages in terms of power distribution and power utilization. Steam can enter a common manifold at normal pressure from each boiler (Figure 1). Then use the drilling equipment on the throttle to control the size of its power. That is, the power from one or several boilers can be provided to any drilling rig in any amount of variation. Due to the increasing demands on the issues of transportability, fuel economy and boiler water, several diesel engines have been developed