Horizontal efficient liquid ammonia evaporator

Abstract

The invention discloses a horizontal efficient liquid ammonia evaporator, which comprises a horizontal condensing water tank body and a horizontal liquid ammonia tank body, wherein the left and right end parts of the horizontal condensing water tank body are in an opening shape and are provided with flanges; the left opening end and the right opening end of the horizontal condensing water tank body are respectively provided with a left opening sealing end and a right opening sealing end; a condensing water chamber is arranged inside the horizontal condensing water tank body; the horizontal liquid ammonia tank body is connected with the top of the horizontal condensing water tank body so that the horizontal liquid ammonia tank body is suspended in the condensing water chamber of the horizontal condensing water tank body; the horizontal liquid ammonia tank body is provided with multilayer outer steam pipes penetrating through the liquid ammonia chamber from the left side to the right side; the left opening sealing end of the horizontal condensing water tank body is provided with a steam chamber; the left opening sealing end is provided with multilayer inner steam pipes matched with the multilayer outer steam pipes; the left sealing end of the horizontal liquid ammonia tank body is provided with an insertion opening through which the inner steam pipes are inserted into the outer steam pipes. The product of the horizontal efficient liquid ammonia evaporator has the advantages that the energy consumption is reduced; the space is saved; the maintenance is convenient; the output is stable.

Description

technical field [0001] The invention relates to the technical field of thermal power generation flue gas denitrification technology, in particular to a horizontal high-efficiency liquid ammonia evaporator. Background technique [0002] In the flue gas denitrification process of thermal power generation, ammonia gas is generally used. Normally, ammonia gas is produced by the gasification of liquid ammonia through the evaporator. Because liquid ammonia is dangerous, it is necessary to build an independent ammonia area and install a large number of fire-proof, lightning-proof, and explosion-proof equipment. The system is relatively complicated and the cost is high. [0003] The traditional evaporator adopts the principle of water bath evaporator, the gasification capacity is small, and the volume of the equipment is also large, which can only meet the ammonia supply of one or two boilers. By referring to the evaporation principle of the steam riser jacket adopted in the petro...

AI Technical Summary

Problems solved by technology

[0005] 1. There is a variable relationship between the amount of heat exchange and the level of liquid ammonia, and it is difficult to control the demand for gas and ammonia at the output end;

[0006] 2. Under the working condition of small evaporation, liquid ammonia cannot be injected into the ammonia tank, and the steam is too late to condense, which will cause the top temperature of the ammonia tank to be too high, wasting energy

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