System for supplying urea solution

• Main Authors: HAN FENGTAO, FANG WU, NIU JINGHONG, ZHANG LIGANG, BI MINGSONG, WU YAXU, LI BO
• Format: Patent
• Language: Chinese; English
• Published: 16.09.2022
• 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 embodiment of the utility model discloses a system used for supplying urea solution, the system comprises a pumping unit, a pump-out pipeline and a spraying unit, the pumping unit is used for pumping the urea solution to the spraying unit through the pump-out pipeline, and the spraying unit is used for spraying the urea solution through the pump-out pipeline. The spraying unit is used for spraying out urea solution which is pumped to the spraying unit and pressurized to target pressure under the pumping effect, and the system further comprises an overflow pipeline with a throttling hole, the overflow pipeline is communicated with the pumping-out pipeline, so that the urea solution pumped by the pumping unit overflows through the throttling hole while being sprayed by the spraying unit; and the on-off unit is used for enabling the overflow pipeline to be in an open-circuit state when the pressure of the urea solution pumped to the spraying unit does not reach the target pressure and enabling the overflow p