Vertical ammonia synthesis tower electric heater and gas heating method

Abstract

The invention provides a vertical ammonia synthesis tower electric heater which comprises a shell and an internal part. The shell sequentially comprises an outlet flange, a lower tee joint, an inlet flange, a cylinder lower end part, a cylinder, a cylinder upper end part and a flat cover from bottom to top, and the flat cover is provided with an opening for inserting an electric furnace wire. The internal part sequentially comprises a lower pressing ring, a lower packing, a lower fixing clamp, a lower connecting pipe, a lower supporting piece, an upper supporting piece, an upper connecting pipe, an upper fixing clamp, an upper packing and an upper pressing ring from bottom to top, and through holes are formed in the side wall of the lower supporting piece and the side wall of the upper connecting pipe. The vertical ammonia synthesis tower electric heater provided by the invention has a vertical single-inlet and single-outlet structure, is small in occupied area and high in heating speed, and is suitable for small and medium-sized ammonia plants.

Description

technical field [0001] The invention relates to the technical field of ammonia synthesis, more specifically, the invention relates to a vertical ammonia synthesis tower electric heater and a gas heating method. Background technique [0002] In the national economy, ammonia plays an important role, especially for agricultural production. Ammonia is also a very important industrial raw material. In the chemical fiber and plastic industries, ammonia, nitric acid and urea are used as sources of nitrogen to produce caprolactam, nylon and other products. Ammonia is also widely used in other industries. Ammonia and its processed products are indispensable in petroleum refining, rubber industry, metallurgical industry and mechanical processing, as well as in light industry, food and pharmaceutical industries. [0003] Hydrogen and nitrogen are synthesized into ammonia under high temperature and pressure and under the action of a catalyst. The ammonia synthesis tower is the heart ...

AI Technical Summary

Problems solved by technology

[0004] Conventional ammonia synthesis tower electric heater adopts a double-inlet and double-outlet structure, and its flow rate is large, which is suitable for large-scale ammonia synthesis towers, but not suitable for small and medium-sized ammonia synthesis towers.

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