System and method for preparing ammonia water from gaseous ammonia

Abstract

The invention relates to a system and method for preparing ammonia water from gaseous ammonia. The system for preparing the ammonia water from the gaseous ammonia comprises an ammonia synthesis system, an ammonia cooler, a refrigeration system, a refrigerating liquid ammonia small groove and an ammonia water preparation system, wherein process gas of the ammonia synthesis system enters the ammoniacooler, the ammonia cooler communicates with a gaseous ammonia pipeline by the refrigeration system, and liquid ammonia generated by the refrigeration system is stored in the refrigerating liquid ammonia small groove; the refrigerating liquid ammonia small groove is used for providing a condensing agent for the ammonia cooler through a liquid ammonia pipeline. The system for preparing the ammoniawater from the gaseous ammonia also comprises a pipeline for preparing the ammonia water from the gaseous ammonia; the ammonia water preparation system comprises a super ammonia absorber; an inlet ofthe pipeline for preparing the ammonia water from the gaseous ammonia is formed in the gaseous ammonia pipeline; an outlet of the pipeline for preparing the ammonia water from the gaseous ammonia communicates with one inlet of the super ammonia absorber. According to the system and the method for preparing the ammonia water from the gaseous ammonia, the technical problems of high power consumption and low efficiency in the existing ammonia water preparation system are solved; the system for preparing the ammonia water from the gaseous ammonia is mainly used for preparing the ammonia water from the gaseous ammonia from the ammonia cooler, so that the power consumption of an ice maker is lowered, and the preparation efficiency of the ammonia water is improved.

Description

technical field [0001] The invention belongs to the field of ammonia water preparation, and in particular relates to a system and a method for preparing ammonia water from ammonia gas. Background technique [0002] In the ammonia synthesis process, there is an auxiliary system that is the ammonia synthesis refrigeration system, which is used to cool down the process gas of the ammonia synthesis system, and has achieved the purpose of separating liquid ammonia. The liquefaction of gaseous ammonia includes compression and condensation. After the gaseous ammonia is compressed by an ice machine, it enters an evaporative condenser, and the gaseous ammonia is condensed into liquid ammonia by cooling water, and finally sent to a small tank for refrigerated liquid ammonia. The liquefied ammonia is sent to the ammonia cooler or other required sections from the refrigerated liquid ammonia small tank. With the development of environmental protection technology, many enterprises need a...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of high power consumption and low efficiency of the existing ammonia production system, the present invention provides a system and method for preparing ammonia from ammonia in a refrigeration system

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