A heating furnace with modular lining

Abstract

The invention discloses a heating furnace with a module liner. The heating furnace comprises a furnace body; the furnace body includes a furnace top plate, furnace walls and a furnace baseplate; a thermal insulation module liner is arranged on the inner side of the furnace body, and is assembled through assembly welding jaw nails; and the thermal insulation module liner includes one-dimensional thermal insulation module liner units mounted on the furnace top plate or the furnace walls or the furnace baseplate, two-dimensional thermal insulation module liner units mounted in the corner of two furnace walls or the corners of the furnace walls and the furnace top plate or the corners of the furnace walls and the furnace baseplate, and three-dimensional thermal insulation module liner units mounted in the intersections of two furnace walls and the furnace baseplate or the intersections of two furnace walls and the furnace top plate. The heating furnace uses the module liner for thoroughly solving the problem of module damage in structure joints caused in long-distance transportation and lifting process of large modules, improves the structure stability, reduces splicing gaps, prevents air leakage of the furnace walls, improves the construction efficiency, and shortens the project duration.

Description

technical field [0001] The application relates to the technical field of heating furnaces in petroleum refining, petrochemical and other chemical fields, and in particular to a heating furnace with a modular lining. Background technique [0002] Heating furnace is the leader in petrochemical industry, including atmospheric furnace, vacuum furnace, hydrogen production furnace, reforming furnace, coking furnace, reforming furnace and cracking furnace. The four sides of the main body of the heating furnace are surrounded by tall furnace walls. The furnace wall is covered with welded steel plates on steel frames such as I-beams. The steel plates are distributed with welded insulation nails, and heat insulation and wear-resistant materials or materials are cast between the insulation nails. Insulated module lining. In the case of tube furnaces, so-called tube furnaces, the function of which is to heat the medium (oil or gas) to the temperature required for the process, the brack...

AI Technical Summary

Problems solved by technology

After the innovation of modular construction technology of heating furnace solved the coordination problem of modern engineering construction, new problems were exposed in the construction of heating furnace, that is, the strength of non-metallic insulation lining is lower than that of steel structure, and the modules are loose structures with large gaps Between the furnace walls, between the furnace wall and the top or bottom, at the entrances and exits, and at the corners of the flow channels are the stress nodes of the structure. Long-distance transportation and hoisting of large modules are likely to cause deformation of the modules and damage to the insulation lining. Loosening, cracking and other damage

On the other hand, the structural stress nodes of the module are also the structural stress nodes of the heating furnace. When the flue gas passes through this special structure, it is often subjected to changing obstructions and pressures, resulting in flow state changes such as vortices and impacts, which further damage the lining. , resulting in air leakage from the furnace wall during the operation of the heating furnace, which reduces thermal efficiency and is not conducive to energy saving and emission reduction

Moreover, because the furnace module is full of coils and there is no room for construction work, the repair of these damages is very difficult

Images