Vehicle urea solution production system and automatic control method

Abstract

The invention relates to a vehicle urea solution production system and an automatic control method. The system comprises a raw water preprocessing subsystem, which is used to preprocess raw water to remove impurities in raw water; and a pure water preparation subsystem, which is used to remove ions in the preprocessed raw water; wherein the raw water preprocessing subsystem and the pure water preparation subsystem are both provided with at least one closed-loop control point, which is used to collect the realtime sensor data during the production process of subsystems and control the valves during the production process of subsystems. The vehicle urea solution production system also comprises a monitoring control subsystem, which is connected to each closed-loop control point through communication lines and is used to monitor the realtime sensor data of each closed-loop control point and send control command to the closed-loop control points according to a closed-loop control algorithm. The provided system and method can automatically control the production process of urea solution and automatically handle the abnormal situations, and thus the human cost is reduced.

Description

technical field [0001] The invention relates to the field of vehicle urea solution production, in particular to a vehicle urea solution production system and an automatic control method. Background technique [0002] Urea solution for vehicles is a liquid used in Selective Catalytic Reduction Technology (SCR) to reduce nitrogen oxide pollution in diesel vehicle exhaust. It belongs to nitrogen oxide selective catalytic reduction agent, which can be synthesized by a certain proportion of ultra-purity vehicle urea and pure water. After diesel vehicles use this urea solution for vehicles, the nitrogen oxides in the exhaust emissions can be decomposed into non-polluting nitrogen and water vapor, which can directly reduce smog pollution. [0003] At present, the production of urea solution for vehicles involves a large number of equipment, and the on-site preparation mostly adopts the mechanical adjustment method, which requires experienced technicians to continuously debug and t...

AI Technical Summary

Problems solved by technology

This mechanical adjustment method requires a lot of manual operation and maintenance, and the adjustment process is very dependent on the experience of the technicians, resulting in high labor costs.

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