CN-122006448-A - Multi-pollutant collaborative purification method, device, program product and storage medium

CN122006448ACN 122006448 ACN122006448 ACN 122006448ACN-122006448-A

Abstract

A multi-pollutant collaborative purification method, equipment, a program product and a storage medium relate to the technical field of industrial flue gas purification. The method comprises the steps of calculating first treatment agent dosing parameters according to first pollutant concentration data, calculating second treatment agent dosing parameters according to the second pollutant concentration data, obtaining pressure difference data and flow data in the dosing process, obtaining second flue gas data of second-stage flue gas after ash removal treatment is carried out on first-stage flue gas according to the pressure difference data and the flow data, carrying out temperature regulation and catalytic control on the second-stage flue gas according to the second flue gas data to obtain final purified flue gas data, converging the first pollutant concentration data, the second pollutant concentration data and the final purified flue gas data to obtain converging data, and adjusting the first treatment agent dosing parameters and the second treatment agent dosing parameters according to the converging data to achieve collaborative purification. By implementing the technical scheme provided by the application, the overall flue gas purification accuracy can be improved.

Inventors

LI LIANGBO
YU XIANMIN
ZHANG HAIRUI
MENG XIANGXU
WANG YUEYING

Assignees

北京青山绿野科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260306

Claims (10)

1. A multi-contaminant co-purification method, the method comprising: acquiring first pollutant concentration data of original flue gas, and calculating a first treatment agent dosing parameter according to the first pollutant concentration data; Acquiring second pollutant concentration data of the first-stage flue gas after the original flue gas is purified according to the first treatment agent addition parameters; Calculating a second treatment agent dosing parameter according to the second pollutant concentration data, acquiring pressure difference data and flow data in the dosing process according to the second treatment agent dosing parameter, and acquiring second flue gas data of the second stage flue gas after ash removal treatment is performed on the first stage flue gas according to the pressure difference data and the flow data; Carrying out temperature regulation and catalytic control on the second-stage flue gas according to the second flue gas data to obtain final purified flue gas data; Converging the first pollutant concentration data, the second pollutant concentration data and the final purified flue gas data to obtain converged data; and adjusting the first treating agent adding parameter and the second treating agent adding parameter according to the converged data so as to realize collaborative purification.
2. The method for collaborative purification of multiple pollutants according to claim 1, wherein the step of obtaining differential pressure data and flow data during the process of adding according to the second treating agent adding parameter, obtaining second flue gas data of second stage flue gas obtained after ash removal treatment of the first stage flue gas according to the differential pressure data and the flow data, comprises: Acquiring first-stage flue gas temperature data, and calculating temperature preconditioning parameters according to the first-stage flue gas temperature data to obtain preconditioned flue gas data; calculating reaction product smoke data in the adding process according to the pre-adjustment smoke data and the second treating agent adding parameter; Calculating the addition parameters of the adsorbent according to the flue gas data of the reaction products to obtain flue gas data containing the adsorption products; And acquiring pressure difference data and flow data corresponding to the flue gas data containing the adsorption product, calculating a resistance coefficient according to the pressure difference data and the flow data, and calculating a first separation unit ash removal parameter and a second separation unit ash removal parameter according to the resistance coefficient and the pressure difference data when the resistance coefficient reaches an ash removal starting condition, so as to acquire second-stage flue gas data after ash removal treatment is carried out on the flue gas data containing the adsorption product according to the first separation unit ash removal parameter and the second separation unit ash removal parameter.
3. The method according to claim 2, wherein when the resistance coefficient reaches a soot cleaning start condition, calculating a first separation unit soot cleaning parameter and a second separation unit soot cleaning parameter according to the resistance coefficient and the pressure difference data, and obtaining second stage flue gas data after soot cleaning the adsorption product-containing flue gas data according to the first separation unit soot cleaning parameter and the second separation unit soot cleaning parameter, comprises: Comparing and analyzing the resistance coefficient with a resistance coefficient reference value in a historical operation period, and judging that the ash removal starting condition is reached when the resistance coefficient exceeds a preset multiple of the resistance coefficient reference value; Calculating the difference value between the resistance coefficient and the resistance coefficient reference value, and calculating the ash removal parameter of the first separation unit according to the pressure difference data and the difference value; acquiring ash removal pressure difference data of a first separation unit after ash removal treatment is carried out on the flue gas data containing the adsorption products according to ash removal parameters of the first separation unit; Judging the ash removal effect of the first separation unit according to the ash removal pressure difference data and the variation of the pressure difference data; When the ash removal effect meets a preset recovery condition, calculating ash removal parameters of a second separation unit according to the pressure difference data after ash removal and the resistance coefficient; And acquiring second-stage flue gas data after further ash removal treatment of the flue gas data subjected to the ash removal treatment of the first separation unit according to the ash removal parameters of the second separation unit.
4. The multi-pollutant collaborative purification method according to claim 1, wherein the performing temperature adjustment and catalytic control on the second stage flue gas according to the second flue gas data to obtain final purified flue gas data comprises: Collecting inlet temperature data of the flue gas entering the catalytic device at the second stage and catalyst activity temperature interval data; calculating a temperature compensation quantity according to the deviation value of the inlet temperature data and the catalyst activity temperature interval data, calculating a temperature adjustment parameter according to the temperature compensation quantity, and performing temperature adjustment on the second-stage flue gas data according to the temperature adjustment parameter to obtain catalytic inlet flue gas data; When the actual temperature data corresponding to the catalytic inlet flue gas data is positioned in the catalyst activity temperature interval, catalytic reaction flue gas data after catalytic reaction treatment of the catalytic inlet flue gas is obtained; According to the residual pollutant concentration data in the catalytic reaction flue gas data, adjusting heat exchange power parameters and residence time parameters corresponding to the catalytic reaction, so that the residual pollutant concentration is reduced to a preset target range, and deep purification flue gas data are obtained; and calculating a waste heat recovery parameter according to the deep purification flue gas data, and obtaining final purification flue gas data after waste heat recovery treatment is carried out on the deep purification flue gas data according to the waste heat recovery parameter.
5. The method according to claim 4, wherein the calculating the waste heat recovery parameter according to the deep purified flue gas data, obtaining final purified flue gas data after performing waste heat recovery processing on the deep purified flue gas data according to the waste heat recovery parameter, comprises: acquiring inlet temperature data and outlet temperature target data of a waste heat recovery device corresponding to the deep purification flue gas data; calculating heat recovery amount and flow parameters of a heat exchange medium according to the inlet temperature data and the outlet temperature target data, and taking the heat recovery amount and the flow parameters of the heat exchange medium as waste heat recovery parameters; Controlling the flow of a heat exchange medium of the waste heat recovery device according to the waste heat recovery parameters so as to enable the deeply purified flue gas to carry out waste heat recovery, and calculating the actual heat absorption power of the heat exchange medium according to the inlet temperature data and the outlet temperature data of the heat exchange medium in the waste heat recovery process; and calculating theoretical heat absorption power according to the heat energy recovery quantity, and when the power deviation between the actual heat absorption power and the theoretical heat absorption power exceeds a preset threshold value, adjusting the flow parameter of the heat exchange medium to enable the power deviation to be smaller than the preset deviation threshold value, so as to obtain final purified flue gas data.
6. The method according to claim 5, wherein adjusting the flow parameter of the heat exchange medium when the power deviation of the actual heat absorption power from the theoretical heat absorption power exceeds a preset threshold value comprises: Calculating the power deviation of the actual heat absorption power and the theoretical heat absorption power; When the power deviation exceeds a preset threshold, calculating a flow regulating quantity according to the power deviation and the current flow of the heat exchange medium, and regulating a flow parameter of the heat exchange medium according to the flow regulating quantity; And re-acquiring inlet temperature data and outlet temperature data of the heat exchange medium, re-calculating the actual heat absorption power, and continuously and iteratively adjusting until the power deviation is reduced to be within the preset threshold value.
7. The multi-contaminant co-purification method of claim 1, wherein said adjusting said first treatment agent dosing parameter and said second treatment agent dosing parameter according to said aggregated data to achieve co-purification comprises: Performing time sequence association analysis on the converged data, and extracting a multi-pollutant concentration change trend and an operation state change trend; calculating the synergistic purification efficiency of the current treatment agent ratio of the first treatment agent adding parameter and the second treatment agent adding parameter according to the multi-pollutant concentration change trend and the running state change trend; Comparing the collaborative purification efficiency with the historical optimal collaborative purification efficiency; When the collaborative purification efficiency is lower than the historical optimal collaborative purification efficiency, calculating an optimal treatment agent ratio according to the association relation between the first pollutant concentration data and the second pollutant concentration data; and adjusting the first treating agent adding parameter and the second treating agent adding parameter according to the optimal treating agent proportion, so as to realize the cooperative purification of multiple pollutants.
8. A multi-contaminant co-purification apparatus comprising one or more processors and memory coupled to the one or more processors, the memory to store computer program code comprising computer instructions that the one or more processors invoke to cause the multi-contaminant co-purification apparatus to perform the method of any of claims 1-7.
9. A computer program product containing instructions that, when run on a multi-contaminant co-purification apparatus, cause the multi-contaminant co-purification apparatus to perform the method of any of claims 1-7.
10. A computer readable storage medium comprising instructions that, when run on a multi-contaminant co-purification apparatus, cause the multi-contaminant co-purification apparatus to perform the method of any one of claims 1-7.

Description

Multi-pollutant collaborative purification method, device, program product and storage medium Technical Field The application relates to the technical field of industrial flue gas purification, in particular to a multi-pollutant collaborative purification method, equipment, a program product and a storage medium. Background With the increasing strictness of environmental protection standards, the purification treatment of industrial flue gas has become an important field for preventing and treating air pollution. The flue gas generally contains various pollutants such as particulate matters, sulfur oxides, nitrogen oxides and the like, and comprehensive purification is realized through a multi-stage treatment process. The existing multi-pollutant flue gas purification technology generally adopts a grading treatment mode and comprises a desulfurization unit, a denitration unit, a dust removal unit, a catalytic purification unit and the like which are sequentially arranged. In actual operation, the total pollutant load of the original flue gas is detected, and the addition amount of each stage of treatment agent is determined according to a preset distribution proportion relation, so that each stage of treatment units operate according to the design working condition. The mode can integrally adjust the operation intensity of the multi-stage treatment system according to the pollution degree of the inlet flue gas, and realize the treatment of the flue gas with different loads. However, in the control mode for proportionally distributing the dosage of the treating agents at each level based on the inlet load, when the smoke with larger fluctuation of the proportion of the multi-pollutant components is faced, the dosage of the treating agents at each level is mainly determined according to the total load of the inlet and the preset distribution proportion, the guiding effect of the actual purifying effect at each level on the setting of the dosage of the follow-up treating agents is limited, and the overall purifying accuracy is insufficient. Disclosure of Invention The application provides a multi-pollutant collaborative purification method, multi-pollutant collaborative purification equipment, a program product and a storage medium, which can improve the overall flue gas purification accuracy. In a first aspect of the present application, a method for synergistic purification of multiple contaminants is provided, comprising: acquiring first pollutant concentration data of original flue gas, and calculating a first treatment agent dosing parameter according to the first pollutant concentration data; Acquiring second pollutant concentration data of the first-stage flue gas after the original flue gas is purified according to the first treatment agent addition parameters; Calculating a second treatment agent dosing parameter according to the second pollutant concentration data, acquiring pressure difference data and flow data in the dosing process according to the second treatment agent dosing parameter, and acquiring second flue gas data of the second stage flue gas after ash removal treatment is performed on the first stage flue gas according to the pressure difference data and the flow data; Carrying out temperature regulation and catalytic control on the second-stage flue gas according to the second flue gas data to obtain final purified flue gas data; Converging the first pollutant concentration data, the second pollutant concentration data and the final purified flue gas data to obtain converged data; and adjusting the first treating agent adding parameter and the second treating agent adding parameter according to the converged data so as to realize collaborative purification. By adopting the technical scheme, the first pollutant concentration data of the original flue gas and the second pollutant concentration data of the first-stage flue gas are obtained, the first treating agent adding parameter and the second treating agent adding parameter are respectively calculated, the pressure difference data, the flow data and the final purified flue gas data are obtained in the treatment process, and the data are converged and then are used for adjusting the adding parameters of the first treating agent and the second treating agent, so that the cooperative optimization of the front-stage and rear-stage treatment parameters is realized. According to the scheme, the adding amount of the treating agents at each level is not determined only according to the total load of the inlet and the preset distribution proportion, but the treating parameters at each level are dynamically adjusted based on comprehensive feedback of multi-level actual purifying effect data, and the accuracy of the multi-pollutant collaborative purifying process is improved. Optionally, the obtaining pressure difference data and flow data in the process of adding according to the second treating agent adding parameter, obtaining second flue gas