Heat self-exchange tube array fin dual ammonia preparation device

Abstract

The invention discloses a heat self-exchange tube array fin dual ammonia preparation device, which is mainly composed of two absorption reactors. The inside of each absorption reactor can closely contact with the outer wall of a liquid ammonia steel cylinder, so that the liquid ammonia steel cylinder can be contained between the two absorption reactors; and array tubes and fins are arranged in the two absorption reactors. In the ammonia preparation process, the heat released from the absorption reaction can simultaneously absorbed by the liquefied ammonia gasification process through the array tubes and fins in the reactors, so as to reach the purpose of dual exchange of array tubes and fins; heat released from the reaction process is effectively removed, and heat required by liquid ammonia gasification is supplied, so as to facilitate the proceeding of the reaction towards the product generation direction as well as supply stable gasification temperature for liquid ammonia; and heat direct self-exchange of heat released in the absorption reaction and heat absorbed by liquid ammonia gasification in the system is realized, so that the ammonia preparation process is carried out and completed under efficient and stable conditions without the need of cooling water and electricity.

Description

technical field [0001] The invention belongs to the technical field of chemical production equipment and chemical product preparation, and in particular relates to a heat self-exchange tube-fin double-type ammonia water preparation device without cooling water and electricity. Background technique [0002] Ammonia is an important reagent in the laboratory, and the national standard content of reagent ammonia is 25%. Industrially used as a reducing agent for flue gas desulfurization and denitrification. It can be used as fertilizer after dilution in agriculture. It is used in the preparation and selection of various iron salts in the inorganic industry. In the military, it is used as an alkaline disinfectant to disinfect sarin-like poisons. Wool spinning, silk, printing and dyeing and other industries are used for washing wool, woolen cloth, gray cloth, dissolving and adjusting pH, and as dyeing aids, etc. In the organic industry, it is used as an aminating agent and a ca...

AI Technical Summary

Problems solved by technology

The invention of CN101863495B discloses an efficient equipment for configuring liquid ammonia and water into ammonia water, which overcomes the defects of the prior art such as low ammonia water configuration efficiency, many equipment required for configuration, high noise, low concentration of finished ammonia water, and uneven ammonia water concentration.

The CN201940202U utility model discloses a device for preparing ammonia water from liquid ammonia, which aims at the problems existing in the process of preparing ammonia water by mixing liquid ammonia and water, overcomes the problems of process noise and vibration, and solves the problem of hot ammonia water at the same time, providing an efficient, stable and reliable A device for preparing ammonia water from liquid ammonia

[0006] The above technical solutions have made different degrees of improvement in response to the original technical defects, but none of them have broken away from the link of using cooling water to remove the heat released during the reaction process. There is still a change in the gasification rate of liquid ammonia in the liquid ammonia cylinder with the ambient temperature. , Fluctuations in the amount of ammonia fed into the absorption reactor, temperature fluctuations in the absorption reactor, waste of water resources and energy, etc.

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