FIELD: ammonia and urea production.
SUBSTANCE: according to the first invention of the group, a steam network system is proposed for a plant containing an ammonia production unit and a urea production unit, containing a high-pressure steam line (1), two medium-pressure steam lines (2, 3), as well as the first and second turbines (10, 12) , which are supplied with high-pressure steam by a high-pressure steam line (1); wherein the first turbine (10), which is supplied with high-pressure steam by the high-pressure steam line (1), is a condensing-type turbine with discharge into one of the two medium-pressure steam lines (2) and is configured to transfer energy to the syngas compressor in the ammonia production unit the second turbine (12), which is supplied with high-pressure steam by the high-pressure steam line (1), is a counter-pressure type turbine with an outlet connected to two medium-pressure steam lines, and is configured to transfer energy to the CO2 compressor in the unit urea production plant. The second object relates to a unit containing a steam network system, that is, the first of the group's inventions. In addition, a method for distributing high pressure steam in a steam network system for the unit containing an ammonia production unit and a urea production unit, and a method for reconstructing a steam network system for the unit containing an ammonia production unit and a urea production unit are also presented.
EFFECT: improved efficiency of the steam network, in particular by reducing the cost of operating the unit.
8 cl, 1 ex, 2 dwg
