SCR (Selective Catalytic Reduction) denitration ammonia injection adjusting system, method and equipment based on acoustic velocity measurement and medium

• Main Authors: ZHONG KAI, HAO YONGBO, CHEN JIANWEN, ZHOU XIN, YAO HAIZHOU, TIAN JIANMING, JIANG AN
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: CONTROLLING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; REGULATING; SEPARATION; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES; TRANSPORTING

The invention relates to an SCR (Selective Catalytic Reduction) denitration ammonia spraying adjusting system, method and equipment based on sound wave velocity measurement and a medium, the system comprises a flue gas flow measuring system and a subarea leveling system, and the flue gas flow measuring system is connected with the subarea leveling system; the flue gas flow measuring system comprises a control system, a plurality of ultrasonic sensors, a plurality of ultrasonic generators and a plurality of thermometers, the SCR denitration reactor comprises a plurality of reaction subareas, and each reaction subarea comprises one ultrasonic sensor, one ultrasonic generator and one thermometer. And the control system is respectively connected with the ultrasonic sensor, the ultrasonic generator and the thermometer of each reaction zone. The problem that due to the fact that a CEMS sampling pipeline is long, a measurement result is lagged, and the synchronism of the supply amount of sprayed ammonia and the actu