Study On Key Technology Of Drive And Transport Systems Of Oil Pipeline Emergency Repair Ropeway

In the cases of oil and gas pipeline emergency repair works, it takes a lot of time and money to repair the oil and gas pipeline which damaged by the natural disasters such as earthquakes, landslides and debris flows. In our country, oil and gas pipelines are mostly distributed in mountainous areas with high incidence of geological disasters, thus the oil and gas pipeline emergency repair becames an important subject in the protection of China’s oil security.In order to solve the promble of equipments transportation in the emergency repair works, this paper presents a new type of instrument to transport pipelines and equipments, and its feasibility was verified by the field test. Compared to traditional type of emergency repair, oil pipeline emergency repair equipments cable transportation system has the characteristics of convenient, terrain adaptability and safe. It can transport the repair equipments to the accident place much faster, so it will save a lot of time in the emergency repair work. Cable system includes drive and transport systems, gantry mast system, anchoring and tensioning system. This paper mainly do some work for the drive and transport system as follows:First, the design of drive and transport systems. As the power output and load transport equipment in the cable system, the drive and transport system plays a vital role. Drive and transport system is mainly divided into four parts: the drive equipment, the control cabinet, the cable loop device and the carrying car. The type of the brake equipment is dual-braking, the one at the high-level of reducer is the main brake, the one at the low-level is the aide brake, traction cable is drove by a single friction drum. Control system combines the PLC and inverter control, under the control of the PLC inverter can changes the velocity of drive system from 0 to 1.25 m/s continuously. Cable loop device includes a winding wheel, guide wheels and traction cable, all of them form a close loop ring, the carrying car can do reciprocating transport in this ring. Based on this proposal, according to the geological conditions of test site a set of prototype proposal was made.Second, establish the cable system dynamics experiment platform. In order to study the system dynamics under different climatic conditions, a experiment platform for system dynamics was established by using the Pro/E and ADAMS, without external interference the dynamic properties of the cable system was simulated on this platform. Third, the feasibility test. The entire prototype was manufactured. At last the feasibility test was processed, which proves the cable system is feasible in the pipeline emergency repair.