A desulfurization control method, device, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a desulfurization control method and device, a storage medium and electronic equipment. The method comprises the following steps that firstly, the content of sulfide salt in SCR is obtained under all working conditions; whether the content of the sulphide salt is greater than a first preset value or not is judged, if so, a desulfurization action is executed, if not, whether the content of the sulphide salt is greater than a second preset value or not is judged, if so, a regeneration state of DPF is obtained, and if the regeneration state is regeneration, the regeneration time is controlled to be a third preset value, wherein the first preset value is greater than the second preset value, the third preset value is greater than the control duration during the normal regeneration, therefore, according to the scheme, when the content of the sulfide salt is greater than the first preset value, the desulfurization action is executed, and when the content of the sulfide salt is less than the first preset value and greater than the second preset value, the regeneration time is prolonged, so that the accumulated degree of sulfur can be judged in advance, thereby achieving the effect of desulfurization in advance.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a desulfurization control method, device, storage medium and electronic equipment. Background technique [0002] Vehicle diesel contains a certain amount of sulfur. When the diesel is burned in the cylinder, part of the sulfur will react to become sulfur oxides (SO2, SO3) and sulfide salts will enter the after-treatment system with the exhaust gas, and the sulfide salts will adhere to the surface of the SCR catalyst. , which affects the contact and adhesion reaction between NOx and the catalyst, which in turn affects the efficiency of SCR, resulting in a large amount of NOx being discharged without reaction, thereby affecting emissions. Therefore, it is necessary to use regeneration (increase exhaust temperature) combustion to remove the sulfur attached to the SCR catalyst (desulfurization). [0003] At present, the method of desulfurization is carried out solely based o...

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Problems solved by technology

[0003] At present, the method of desulfurization is carried out solely based on the reduction of SCR efficiency, that is, when the SCR efficiency is reduced, stop urea spraying to eliminate ammonia leakage and then judge whether there is sulfur poisoning. This method is only used when sulfur poisoning has seriously affected SCR efficiency. Desulfurization is carried out, so that the timing of desulfurization is poor, which affects the stability of the emission effect, causes time and fuel loss, and accelerates the wear of components

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