Recently, the first phase of the 1.2 million tons/year polyester project in Zhongtai Bazhou, Xinjiang, undertaken by the Xinjiang Branch of China Chemical Engineering No. 11th Construction Co., Ltd.(hereinafter referred to as "Eleventh Chemical Construction") has 500,000 tons/year differentiated functional sex The first pressure test package of the thermal coal station of the fiber project was successfully tested, marking that the project's process pipeline construction has officially entered the pressure test stage, and the overall project construction pace is accelerating.

It is understood that the first phase of the 1.2 million tons/year polyester project in Zhongtai Bazhou, Xinjiang, has been rebuilt since the resumption of work this year, and the construction tasks of various professions have been reorganized and established "process pipeline test" Work guidelines for promoting the completion of the project. By continuously optimizing the construction plan, the project department accelerates the remaining welding construction progress of process pipelines, fully prepares the construction of key systems of the thermal coal station, and creates favorable conditions for the device to achieve the goal of high-standard mid-delivery.

Process pipeline pressure testing is an important process and inspection measure to check whether the welding quality of pipe orifices and whether the installation quality of valves, flanges and gaskets meets the design standards, and ensure the safe production and operation of pipelines and valve systems. The heat medium station area of the 500,000-ton/year differentiated functional fiber project in the first phase of the 1.2 million tons/year polyester project in Zhongtai Bazhou, Xinjiang is located on the south side of the polyester plant. The heat medium station is divided into heat medium station 1, steam stripping, and heat medium furnace. There are 289 pressure test pipelines required, which are divided into 24 pressure test packages. The total number of meters of pressure test pipelines is 4600 meters, and the test pressure ranges from 0.1MPa to 2.2MPa. Pipe materials include 20 #steel, S30408, Pipe diameters range from DN20 mm to DN600 mm, which makes the workload and difficulty large. In addition, factors such as short pressure test period, many cross operations, and multiple points and wide areas. To this end, the project department established a pressure test work leading group and a pipeline pressure test team, held daily pressure test docking meetings for process pipelines, quickly promoted the closing and pressure test of the on-site pipeline system, coordinated and solved problems that occurred, and ensured pipeline testing. Pressure is carried out in accordance with daily and weekly plans. At the same time, we actively organize owners and supervisors to conduct a full-process and all-round review of each pipeline pressure test package to ensure the safe, high-quality and efficient advancement of process pipeline pressure test work.

At present, 87.5% of the installation of process pipes in the hot coal station has been completed, and the overall construction progress has been completed 91.75%. The project department of 11 Chemical Engineering Corporation is working together to communicate closely with the owner to promote the pressure test of the pipeline in accordance with the owner's starting order, use pressure test to promote the installation and closing of the pipeline, and make every effort to promote the completion of the main control nodes of the hot coal station on time. Source: Sinochem New Network