Real-time evaluation method, device and process tower for operating efficiency of process tower

Abstract

The invention relates to a real-time evaluation method, device and process tower for operating efficiency of a process tower. The method includes: step 1, setting the calculation cycle and theoretical operating efficiency; step 2, obtaining the output and energy consumption of the process tower in real time; step 3, calculating the current moment of the process tower according to the output, energy consumption and calculation cycle of the process tower Operating efficiency; step 4, calculate the difference between the operating efficiency at the current moment and the theoretical operating efficiency, and obtain the operating efficiency deviation; step 5, judge the relationship between the operating efficiency deviation and the set first threshold, if the operating efficiency deviation If the value is greater than the first threshold, the energy consumption deviation value between the energy consumption of the process tower at the current moment and the theoretical energy consumption is calculated. The invention can monitor and evaluate the operation efficiency of the process tower, which is an important link in the chemical production device, in real time, thereby overcoming the defect that the operation state of the process tower can only be monitored in the prior art.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a real-time evaluation method, device and process tower for operating efficiency of a process tower. Background technique [0002] In the process of chemical production, it can provide the opportunity for direct contact between gas (or vapor)-liquid and liquid-liquid, so as to achieve the purpose of interphase heat transfer and mass transfer, and can make the two phases after contact separate in time and mutually The equipment that does not entrain is called a column or process column. Tower equipment is one of the most important equipment in chemical, petrochemical and oil refining production. Common unit operations that can be completed in tower equipment include rectification, absorption, analysis, extraction, reaction, etc. Therefore, tower equipment is divided into rectification tower, absorption tower, analysis tower, extraction tower, reaction tower, etc. In view of the ...

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Problems solved by technology

[0005] At present, in most chemical plants in my country, the monitoring of the working status of the process tower is limited to the DCS. Due to the limitation of the DCS function, this monitoring can only reflect the current operating status of the process tower, and cannot complete the systematic calculation of the operating efficiency and generate a countermeasure. Relevant diagnostic reports with overall guiding significance for chemical production

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