The pipeline pressure testing for Guangxi Huayi Energy Chemical’s MTO project was successfully completed

Thread Content

The pipeline pressure testing for the MTO project at Guangxi Huayi Energy Chemicals was successfully completed. Recently, with the successful final inspection of pressure testing unit 108-MN-001 in the cracking area, all 319 pressure testing units for this project have been completed, marking a significant breakthrough in terms of quality control regarding pipeline installation. This achievement lays a solid foundation for the subsequent handover of the facility and its commissioning with feedstock. The total length of the pipelines in the MTO project exceeds 64 kilometers, and they are made of various materials such as stainless steel, carbon steel, and 15CrMo; they must withstand complex operating conditions involving high temperatures, high pressures, and severe corrosion. The project team adopted a detailed pressure testing approach that categorized tests by subsystem, material, and medium, and selected pure water, deionized water, and air as the pressure testing media based on the specific properties of different materials ； Strictly follow the standardized process of \"gradual pressure increase – pressure stabilization monitoring – data tracing\" to ensure that each pressure testing package is subjected to both the design pressure strength and the test pressure strength. Joint inspections by all parties to strengthen the quality and safety safeguards. During the pressure testing and acceptance phase, the project team strictly implements the \"four-party signature and card-raising\" mechanism. A specialized acceptance team is formed by the owner, the supervision unit, the general contractor, and our construction team to conduct cross-verification of key indicators such as the pressure curve and weld inspection reports. After the pressure testing, 319 quality records covering the entire life cycle were created, enabling precise tracking on a per-package basis. The project’s technical supervisor said, “Each pressure testing unit is the ‘vessels’ of the installation, and no defects are allowed. By establishing a four-level quality control system that includes self-inspection during construction, specialized inspections, cross-checks, and joint acceptance, we ensure that the quality of the project is under 100% control.” ” Currently, the MTO project has entered a critical phase with a tight deadline, where every minute and second carries the urgent imperative of advancing the project. The successful completion of the pipeline pressure testing serves as a powerful signal to accelerate the efforts related to the “three inspections and four determinations” process. All team members are working with great urgency, striving hard to reach the goals set by CCCC.