At 10 o’clock in the morning of April 5th, the product separation tower of Yantai Wanhua high performance new material integration project, manufactured by Ningbo Tianyi Manufacturing Company, a subsidiary of Sinopec Ningbo Engineering Company, was shipped at Xize wharf of Xiangshan Port to the project construction site in Shandong.
It is reported that the 138.6 meters long, 10.8 meters in diameter, weighing 2,558 tons of the “Big MAC”, refresh the global overall manufacturing, overall transportation, overall delivery of the product separation tower length record.
This product separation tower took 8 months to manufacture, which is the “kidney” of the propane dehydrogenation device and the quality gatekeeper of the new material products.
Compared with ordinary types of products, the separation tower has large volume, tonnage, high pressure, and more stringent requirements on manufacturing process and safety quality.
Quality inspector Hu Zhihui said that in the manufacturing process, to repeatedly check the Angle of the saddle, the error is not more than 2 mm, to ensure that the auxiliary transportation platform does not derail, achieve accurate control of straightness, improve the quality of welding mouth, for the subsequent internal tower plate installation level of the equipment.
Product separation tower is an equipment with large diameter and super long length, and effectively ensuring the ellipticity and straightness of the tower body is the challenge of equipment manufacturing.
Welding engineer Xi Xiubin introduced that in order to control the ellipticity of the equipment, the large section of the equipment is in vertical state, which is consistent with the commissioning state of the equipment, and the “meter” support is set near the upper and lower ports of the large section of the equipment to improve the production safety factor.
In order to avoid the welding deformation caused by large welding volume, before each welding, Tianyi manufacturing sets up the anti-deformation support to monitor the ellipticity in time.
The person in charge of the Tianyi manufacturing project said that the tower manufacturing has overcome the problems such as many projects, fewer stations, high requirements and tight schedule in the same period, and completed the production task with both quality and quantity guaranteed.
It is reported that over the years, Tianyi Manufacturing has provided dozens of thousand-ton pressure vessels for domestic and foreign customers, and its products have been applied to Russia, Saudi Arabia, Brunei and Kazakhstan and other “Belt and Road” along the countries and regions.
(Source: Ningbo Municipal Science and Technology Bureau)