Design and Application of Intelligent Diagnosis System for three Pumping Stations of Stamping Automation

This paper focuses on the maintenance of automotive stamping automation equipment. Through long-term self-study and accumulated experience, we independently developed a process monitoring system based on the three pumping stations of clutch, tension pad and lubrication in the stamping automation production line, which is used for real-time monitoring and diagnosis in the automatic production process without stopping the machine, and for the detection of oil temperature change, high-pressure pipeline leakage and oil return pipe In this paper, the improved case has strong practicability, low development cost, and has been recognized by peers in terms of cost efficiency improvement, which is easy to be popularized.

Health and Structural Integrity of Monitoring Systems: The Case Study of Pressurized Pipelines

In the operation of some structures, particularly in energy or chemical industry where pressurized pipeline systems are employed, certain unexpected critical situations may occur, which must be definitely avoided. Otherwise, such situations would result in undesirable damage to the environment or even the endangerment of human life. For example, the occurrence of such nonstandard states can significantly affect the safety of high-pressure pipeline systems. The following paper discusses basic physical prerequisites for assembling the systems that can sense loading states and monitor the operational safety conditions of pressure piping systems in the long-run. The appropriate monitoring system hardware with cost-effective data management was designed in order to enable the real-time monitoring of operational safety parameters. Furthermore, the paper presents the results obtained from the measurements of existing real-time safety monitoring systems for selected pipeline systems.

INFLUENCE OF THE CORROSION AND ENSURING INTEGRITY THE FLUIDS TRANSPORT PIPELINES, ON BASED OF THE ROUTINE DIAGNOSIS

Pipelines represent a very important part of the energy infrastructure. They ensure an economical, safe and continuous transport of fluids, in generally of oil crudes and natural gases. As time goes, pipelines of transporting oil and natural gas (more, buried and high-pressure pipeline) are subjected to loads and environmental effects which may cause them to become degraded with. Pipelines may suffer degradation from a variety of causes, as: corrosion, mechanical damage, stress cracking etc. As pipelines age and the degradation mechanisms become more problematic, it is recognised that the integrity of those pipelines must be proactively managed. All pipeline operators are well aware of this, and at this problem. Evident, the prudent operators have active programs, - timely intervention programs to assure continuing pipeline transporting fluids -, more, to mitigate deterioration and to repair defective pipes. Another important aspect is forecasting corrosion over a period of time in order to predict the possibility of pipeline failure (in other words, defect rate versus time to failure). A variety of techniques are used depending on the nature of the pipeline and the perceived problems. Some of the basic techniques are described in this article.

Optimization Design and Analysis of Polymer High Efficiency Mixer in Offshore Oil Field

The degree of polymer-water mixing in high-pressure pipelines on offshore oilfields usually influences the polymer solution’s performance. To realize efficient mixing of the polymer mother liquor with dilution water in the high-pressure pipeline, a high-efficiency mixer is designed and optimized. The designed mixer consists of four parts: a T-shaped pipe as the main body, an inlet flow-splitting plate, a stainless-steel flow-guiding tube, and an outlet flow-splitting plate. Mathematical models are built by using computational fluid dynamics (CFD) and the mixing effects are compared by using Fluent. The research results show that compared with conventional T-shaped mixers, the designed high-efficiency mixer has better mixing performance and increases the mixing rate to 80%. To optimize the mixing rate, the length of the stainless-steel tube is increased and the tube is perforated to guide the flow. The result shows that boring holes along straight lines around the tube can achieve good optimization effect and increase the mixing rate to 95%. The designed high-efficiency mixer can effectively improve the dissolving efficiency and solve problems in polymer-water mixing in the high-pressure pipeline.

Determination of high-pressure pipeline cyclization degree with exploratory technique

The article examines the issues of determining the network configuration, which ensures the maximum reliability of the gas distribution system. Rationally designed configuration of the gas distribution network with the adopted gas supply scheme can provide reliable operation for a long time. Results are recommended to be used in the design of gas distribution networks, as well as in determining the reserve for improving the reliability of the network for the adopted gas supply scheme for users.