External heat tracing type single-stage double-shell centrifugal pump

• Main Authors: DING JIANGBO, CHEN JIE, XIA YIHONG, YU FEITENG, ZHANG WEI, XU QINWEI, CHEN XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 01.08.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses an external heat tracing type single-stage double-shell centrifugal pump, which comprises a flow guide pipe, an outer shell, an inner shell, a pump cover, a bearing component and the like, a steam cavity cover is arranged on the periphery of the outer shell, a steam cavity is formed between the steam cavity cover and the outer shell, a steam inlet and a steam outlet are respectively arranged on the steam cavity cover, and the bearing component is arranged on the inner shell. And a liquid outlet is formed in the bottom of the outer shell. Steam is introduced into the closed steam cavity for external heat tracing, and the connecting or fixing part between the inner shell and the outer shell is uniformly heated and extends consistently, so that the reliability of the front sealing surface and the rear sealing surface is ensured. And the steam is not in contact with a medium leaked from the inner shell and is not polluted. The sealing effect of the front end and the rear end of the inn