Research On Energy-saving Technology Of Rotary Drilling Rig Power System

Rotary drilling rig,as the construction machinery of a high power, is widely used in railway and highway construction, civil construction, municipal engineering and other industries, playing an important role in national economic construction. But energy consumption of rotary drilling rig is relatively large, and its energy utilization rate is not high. Therefore, it is extremely vital significance to study the energy saving.Firstly, the purpose and the significance of energy-saving control has carried on the dissertation to the rotary drilling rig. The dissertation analyzed the current advanced energy-saving control system based on the studying the current research situation of domestic and external energy Through the analysis of rotary drilling rig main energy loss, defined the direction of energy saving in the power system, and paid.an important attention to reducing the loss caused by matching unreasonable of power system.Secondly, the dissertation analyzed the operation characteristics of the engine. The control strategy of engine power matching was implemented by controlling the engine speed according to the job requirements. And the engine auto idle function was designed taking into account the fuel economy of engine.The biggest cause of energy loss is the irrationality among the engine, the hydraulic pump and the load when the rotary drilling is working. The dissertation suggested the matching strategy based on speed control as the main body to maximize the economic engine and to reach the aim of saving fuel oil by matching the absorption power of hydraulic pump and the output power of the engine and put the engine, hydraulic pump and load as a whole.Finally,we carried on a large number of the analysis test based on the platform of the Foton Lovol FR615C rotary drilling rig.verify the three aspects:first, verify the convenience of the rig on Application of CAN communication in rotary drilling based on the communication between the controller and the engine controller; two, understand the relationship between the engine speed fluctuation and consumption verified by auto idle; three, verify the power between engine and hydraulic pump-load matching characteristics through debugging the engine power matching parameters.