The SCR system
The SCR system consists of a urea tank (loaded with diesel engine exhaust treatment fluid) and an SCR catalytic reaction tank. The operation process of the SCR system is as follows: when nitrogen oxides are detected in the exhaust pipe, the urea tank automatically sprays diesel engine exhaust treatment fluid, which undergoes an oxidation-reduction reaction with nitrogen oxides in the SCR catalytic reaction tank, generating non-polluting nitrogen and water vapor for discharge.
Consequences of not addressing.
If the diesel engine exhaust treatment fluid is not loaded, or the purity is insufficient, or the quality is counterfeit, the vehicle engine will automatically decelerate. At the same time, low-quality diesel engine exhaust treatment fluid can pollute the catalyst in the SCR catalytic reaction tank, causing serious consequences.
The requirements of environmental protection departments.
Domestically, the manufacturers of Euro IV standard engines are commonly referred to as beginning to use Selective Catalytic Reduction (SCR) technology to meet the requirements of environmental protection departments.
