A temperature control method and device of a denitration equipment, an equipment and a medium
By collecting exhaust gas parameters and heat loss, the temperature of the denitrification equipment is predicted and heated in a timely manner, solving the problem of slow heater start-up when the temperature of the denitrification equipment is low, and improving the nitrogen oxide conversion efficiency and emission compliance.
CN121764233BActive Publication Date: 2026-06-02WEIFANG UNIVERSITY +1
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WEIFANG UNIVERSITY
- Filing Date
- 2026-03-02
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
In existing technologies, when the temperature of the denitrification equipment is low, the heater takes a long time to start up, resulting in low nitrogen oxide conversion efficiency and failure to meet emission regulations.
Method used
By collecting exhaust gas parameters, calculating exhaust gas heat and heat loss, and using a preset temperature prediction model to predict the temperature of the denitrification equipment, the heater is activated in a timely manner to maintain the optimal reaction temperature.
Benefits of technology
This technology enables preheating of the denitrification equipment before its temperature drops, improving nitrogen oxide conversion efficiency, ensuring emissions meet standards, and enhancing the system's operational efficiency and economy.
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Figure CN121764233B_ABST
Abstract
The application discloses a temperature control method and device of a denitration equipment, equipment and medium, and relates to the technical field of tail gas purification. The method comprises the following steps: collecting tail gas parameters input into the denitration equipment, wherein the tail gas parameters comprise a tail gas inlet temperature, a tail gas mass flow and an ambient temperature; calculating a tail gas heat input into the denitration equipment based on the tail gas inlet temperature and the tail gas mass flow in the tail gas parameters; calculating a total heat loss amount of the denitration equipment in a denitration operation process; calculating a predicted temperature of the denitration equipment by a preset temperature prediction model and based on the tail gas heat and the total heat loss amount; comparing the predicted temperature with a preset reaction temperature threshold value to obtain a temperature deviation; and if the temperature deviation meets a preset heating condition, starting a heater according to the temperature deviation to heat before the temperature of the denitration equipment drops to the preset reaction temperature threshold value. Once the model predicts that the equipment temperature will drop below the optimal reaction temperature, the heating control logic is triggered immediately to realize early heating.
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