[Ethylene Cracking] Are there any fire protection requirements for the elevator supporting the cracking furnace?

[Ethylene Cracking] Cracking furnace equipment components discussion summary post https://bbs.hcbbs.com/thread-3308724-1-1.html (Source: Huahaichuanliu-Haichuan Chemical Forum Network)

On December 29, the foundation backfilling of the last cracking furnace of the ethylene unit of the Gulei Refinery and Chemical Integrated Project, which was constructed by Sinopec 10th Construction Company, was completed, marking the complete completion of the cracking furnace foundation and an important control node in the civil construction of the entire ethylene unit. It is understood that the project's ethylene equipment has a total of 8 cracking furnaces, 38,000 cubic meters of earth excavation, 928 tons of steel bars tied, and 8,344 cubic meters of concrete pouring, which is a large-volume concrete foundation. In order to reduce the impact of concrete solidification heat on quality, the project department arranged for on-site layered pouring of the foundation, set up cooling pipes inside the foundation, and utilized underground water circulation to fully dissipate heat from the concrete and effectively control quality hazards. At the same time, in order to create better construction conditions for later installation, the project department drew on effective practices in equipment foundation construction and made angle steel positioning plates in advance according to the drawings for installing anchor bolts, reducing construction errors and improving foundation construction accuracy and quality. Ethylene is the leading device in the whole plant, and its cracking furnace construction is an important control project in the whole plant, with the goal of creating a model project for the whole plant. In order to achieve this goal, the project department planned in advance, organized model project exchange training, unified publicity and implementation of excellence goals and relevant regulatory requirements, and promoted the improvement of personnel's quality awareness. ； Refining the construction steps, the cracking furnace foundation from #5 to #8 will be regarded as one section, and #1 to #4 will be regarded as the second section, and construction will be carried out in sections. At the end of November, the foundation of the elevator shaft was ready. In order to speed up the progress, the project department actively organized and reasonably arranged overtime work on site. In less than a month, the foundation of the last 4# cracking furnace and the foundation of the elevator shaft were completed at the same time.