Petrochemical cracking furnace and design method thereof

Abstract

The invention discloses a petrochemical cracking furnace and a design method thereof, and belongs to the field of petrochemical equipment. The petrochemical cracking furnace comprises a box body and aplurality of layers of steel frames which are coaxially arranged; the steel frames are installed on the outer part of the box body in a sleeving mode, and used for supporting the box body; the petrochemical cracking furnace further comprises a plurality of viscous dampers; and the viscous dampers are detachably arranged between the box body and the steel frames. According to the petrochemical cracking furnace and the design method thereof, by arranging the viscous dampers between the box body and the steel frames, impact energy of earthquakes on the petrochemical cracking furnace can be adsorbed and consumed, and the good damping effect is achieved; and the viscous damper are detachably arranged, according to seismic intensity of an area where the petrochemical cracking furnace is located, installation positions and numbers of the viscous dampers in the petrochemical cracking furnace can be adjusted, the safe property of the petrochemical cracking furnace under extreme conditions (theearthquakes) is ensured, the design repeated degree and calculated amounts of the steel frames are reduced, and production and promotion of the petrochemical cracking furnace are achieved.

Description

technical field [0001] The invention relates to the field of petrochemical equipment, in particular to a petrochemical cracking furnace and a design method thereof. Background technique [0002] As the core equipment of the ethylene production plant, the petrochemical cracking furnace is used to process raw materials such as natural gas and crude oil into cracked gas and provide it to the ethylene plant. Among them, the petrochemical cracking furnace includes: a coaxially arranged box body and a multi-layer steel frame; the multi-layer steel frame is set outside the box body to support the box body. At present, with the continuous development of petrochemical and coal chemical industries, the height of petrochemical cracking furnaces continues to increase. After reaching a certain height, an excessively large aspect ratio will cause petrochemical cracking furnaces to tilt or even collapse under seismic loads. Therefore, it is necessary to provide a design method of a petroc...

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Problems solved by technology

[0005] Since the design dimensions of multi-layer steel frames corresponding to different seismic intensity areas are different, this increases the design repetition and calculation amount of multi-layer steel frames, which is not conducive to the production and promotion of petrochemical cracking furnaces

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