System for supplying urea solution

• Main Authors: HAN FENGTAO, FANG WU, NIU JINGHONG, BI MINGSONG, WU YAXU, XU LIZHONG, LI BO, QI MIAOMIAO
• Format: Patent
• Language: Chinese; English
• Published: 01.07.2022
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; STEAM ENGINES; WEAPONS

The present disclosure provides a system for supplying a urea solution, comprising a storage tank, an injection module, and a urea pump, the urea pump comprising: a housing; the first liquid conveying pipeline and the second liquid conveying pipeline are arranged in the shell, the first liquid conveying pipeline is connected with the liquid inlet pipeline, and the second liquid conveying pipeline is connected with the liquid outlet pipeline; the pump core module is configured to be connected with the first liquid conveying pipeline and the second liquid conveying pipeline; the backflow structure is arranged in the shell and comprises a backflow pipeline and a one-way backflow valve arranged in the backflow pipeline, the inlet end of the backflow pipeline is connected to the second liquid conveying pipeline, and the outlet end of the backflow pipeline is connected to the first liquid conveying pipeline. Therefore, pipelines and pipeline heaters can be saved, and the liquid feeding efficiency of the urea pump c