Urea device high-pressure pump for large-scale chemical fertilizer plant

• Main Authors: ZHAO JING, LUO LINFU, YAO HUIRU, GAO ANQI, DING HAIFENG
• Format: Patent
• Language: Chinese; English
• Published: 01.03.2019
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The invention discloses an urea device high-pressure pump for a large-scale chemical fertilizer plant. The urea device high-pressure pump comprises a cylinder body and a pump shaft arranged in the cylinder body; a volute body is arranged between the cylinder body and the pump shaft, a pump cover is arranged at a non-driving end of the cylinder body, and a heat preservation jacket is arranged on the outer wall of the cylinder body in a sleeve mode; and an impeller head section, an impeller middle section and an impeller tail section are sequentially arranged on the pump shaft from a driving endto the non-driving end, wherein the impeller head section is provided with a first-stage impeller, and the first-stage impeller adopts a double-suction structure. According to the urea device high-pressure pump for the large-scale chemical fertilizer plant, crystallization of the easily-crystallized medium is avoided, the influence on the normal operation of the equipment is avoided, the necessary net positive suction he