A petrochemical cracking furnace and its design method

Abstract

The invention discloses a petrochemical cracking furnace and a design method thereof, belonging to the field of petrochemical equipment. The petrochemical cracking furnace includes: a coaxially arranged box and a multi-layer steel frame; the multi-layer steel frame is set outside the box to support the box; the petrochemical cracking furnace also includes: a plurality of viscous damping The viscous damper is detachably arranged between the box body and the multi-layer steel frame. The present invention provides a viscous damper between the box body and the multi-layer steel frame, which can absorb and consume the impact energy of the earthquake on the petrochemical cracking furnace, and has a good shock absorption effect; in addition, the viscous damper is detachable According to the seismic intensity of the area where the petrochemical cracking furnace is located, the installation position and quantity of the viscous damper in the petrochemical cracking furnace can be adjusted to ensure the safety performance of the petrochemical cracking furnace under extreme working conditions (earthquakes), reducing the number of The design repeatability and calculation amount of the layer steel frame are beneficial to the production and promotion of petrochemical cracking furnaces.

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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