Yunwei Group Equipment Maintenance to Realize "Three Securitys"

Yunnan Yunwei Group Zhanhua Branch No. 3 ammonia synthesis tower rose to the end of the warming reduction, which marks the successful completion of the company's single-system equipment maintenance in the first quarter of this year, and achieved the "parking, maintenance, driving" three safety goals.

In the first quarter of this year, due to power shortages, the company decided to overhaul single-system equipment, which included a total of 190 items, including 146 mechanical items, 26 items of instrument items, 14 items of electrical items, and 4 items of quality inspection items, and 85 items of additional pressure. Container inspection. The main overhaul includes the purification of No. 3 medium-temperature shift furnaces, the replacement of catalysts, the replacement of the No. 3 ammonia synthesis tower, the removal of the urea A system No. 1, No. 2 and the detection of pressure vessels. The characteristics of the overhaul are production and maintenance, and it is very difficult to ensure safety. To this end, the company has ensured the successful completion of the maintenance work by strengthening project approval and on-site inspections.

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