Yanshan Petrochemical Company strengthens the efficient utilization of tracing

On the morning of December 16, fan Guanghan from the second shift of the first phenol plant was snowing to check the heat tracing condition of the phenol system pipeline. In 2019, Yanshan Petrochemical followed the idea of "steam reduction and heat tracing efficiency", planned ahead of time, carefully organized, and solidly promoted the orderly development of winter heat tracing work. Develop a fitness program. From the beginning of the year, Yanshan Petrochemical started to carry out research on steam load, steam consumption point and loss, clearly put forward the annual steam reduction target, and decompose the target to each production unit, focusing on stimulating the enthusiasm of the first line to promote steam saving projects and optimization measures. Among them, combined with the inspection of heat loss points, 25 sets of key devices with low heat preservation efficiency and 6 kinds of common problems are determined. There are specific management requirements for heat preservation of underground high temperature generating equipment and pipelines and steam assessment indicators of key units. All devices are self checked and self modified before entering the heating season. The production management department shall organize a monthly work coordination meeting, track the implementation of the reduction measures of each unit, and coordinate and solve relevant issues.

Plan "professional subjects". Based on the technical research, Yanshan Petrochemical comprehensively promotes lean management through heat preservation treatment, device heat tracing transformation, instrument heat tracing to water heat tracing or electric heat tracing, steam trap treatment, water heating transformation, device technical transformation, comprehensive utilization of waste heat, etc. Among them, the oil refining department can save 1.8t/h of steam by adjusting operation or heat preservation and steam trap; the propane unit can gradually reduce the solvent ratio from 3.8 to 3.3 and save 1.2t/h of steam by exploring conditions; the chemical department can optimize the reflux of phenol distillation tower on the premise of meeting the quality of phenol, and reduce the medium pressure steam consumption of the unit by about 0.8t/h. Organize "comprehensive physical examination". With the approaching of heating season, all production units take the initiative to improve the freeze protection and condensation scheme, strengthen the management and control of weak links, strengthen the sense of responsibility, and conduct the freeze protection and condensation safety shouting through scheduling meeting, early shift meeting, situation and task education and other ways; according to the characteristics of different devices, identify the key prevention and control parts, comprehensively carry out the hidden danger investigation, and ensure that the heat tracing pipeline is not blocked or leaked, The pipeline with missing or damaged insulation shall be re insulated; the operation of the steam trap shall be checked one by one, and the existing steam trap shall be inspected and repaired to reduce steam consumption; the bypass of the outlet valve of each standby pump shall be checked to see whether it is slightly opened to ensure the liquid circulation flow, etc., so as to ensure the realization of the goal of "not blocking a pipeline or damaging a valve by freezing". At present, the heat tracing condition of each unit of the company is in good condition. Since entering the heating season for one month, the heat tracing steam consumption has decreased by 13% year on year.