Box-type heating furnace provided with radiation chamber with overhead radiation coils

Abstract

The invention provides a box-type heating furnace provided with a radiation chamber with overhead radiation coils, and relates to a heating furnace. The box-type heating furnace consists of a box-type furnace body, the radiation chamber, furnace tubes, a convection chamber and a chimney, wherein the top parts of the furnace tubes in the radiation chamber are arranged in a valley shape from the two sides to the middle part; and radiating heat tube bundles are transversely arranged in the formed valley and are transversely convoluted in the case of radiation. The box-type heating furnace has the advantages of reasonable design and simple structure, i.e., the top radiating tube bundles are additionally arranged in the furnace body so as to fully utilize the space of the radiation chamber on the premise of not changing the overall structure size of the original furnace body. Therefore, the box-type heating furnace has the beneficial effects that the heat exchange area is increased in a limited space and the radiation rate of the radiation chamber is also improved, thus greatly lowering the exhaust fume temperature of the radiation chamber, effectively improving the heat efficiency and the heat load of the heating furnace, greatly reducing the equipment investment, effectively improving the comprehensive efficiency of the heating furnace, and enhancing the production capacity of devices.

Description

technical field [0001] The invention relates to a heating furnace, in particular to a square box heating furnace with radiant coil tubes placed on the top of a radiation chamber. Background technique [0002] In the petrochemical industry processing process, the heating furnace is the most basic and indispensable equipment, and it is also the key equipment that determines the production capacity of the petrochemical industry. The heat load of the heating furnace directly determines the processing capacity of the petrochemical device. Therefore, , in the case of structures of the same size, it is particularly important to increase the thermal load of the heating furnace. According to the current development status of science and technology, the heat exchange area of ​​the furnace tube in the radiation chamber of the heating furnace is closely related to the heat load of the heating furnace in the petrochemical industry. Due to the limited volume occupied by the furnace box o...

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Problems solved by technology

However, the layout of the furnace tube inside the radiant chamber of the existing heating furnace is unreasonable, and the furnace space is not fully utilized, so that the heat transfer area in the furnace is small, which limits the production capacity of the device. The publication number is CN201382691, and the patent name is square box tube heating. The Chinese patent document of the conical tube-side spatial arrangement of the high-efficiency radiation chamber in the furnace is a device designed for the above-mentioned problems, which effectively solves the problems of small heat transfer area and insufficient production capacity in the furnace, but it is found in practice that it is still Insufficient, the heat transfer area has not been maximized, which still affects the production capacity of the device

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