Space division product energy consumption sharing ratio computing method

Abstract

A calculation method for proportionally sharing out the energy consumption of air separation among the products includes physical properties calculation of O2-N2-A2 and their mixture, rectification calculation, and air separation flow calculation. It features that the energy consumptions for preparing O2 or N2 individually, preparing O2 and N2, and preparing O2, N2 and A2 are respectively calculated, and the energy consumption of A2 product is their difference.

Description

technical field [0001] The invention provides a method for calculating the energy consumption apportionment ratio of air separation products. technical background [0002] The air separation (hereinafter referred to as air separation) device obtains oxygen, nitrogen, argon and other gas products by compressing, liquefying, and rectifying the air. For a long time, there has been a lack of scientific and accurate calculation basis for the calculation of the energy consumption allocation ratio of air separation plant products (mainly oxygen, argon, nitrogen), and the product energy consumption allocation ratio is generally estimated based on experience. Moreover, it is unreasonable and inaccurate that the product energy consumption proportions of different types (or processes) of air separation units are apportioned in the same proportion. [0003] The energy consumption of air separation equipment with different process forms, different manufacturers, and different control me...

AI Technical Summary

Problems solved by technology

[0004] The difficulty in determining the energy consumption allocation of each product in air separation is that air separation products are produced simultaneously and continuously, and the production of one product depends on the simultaneous separation of other products. For existing equipment, the supply of any one product is stopped, and other products The production will also be terminated due to the deterioration of the purity, so the energy consumption of the product cannot be directly measured on the air separation unit