Sealing device applied to low temperature centrifugal liquid pump

• Main Authors: WANG FULONG, YE GUXIANG, ZHANG CAILI, SHI WENYU, PAN HAO, XU SHAOHUI
• Format: Patent
• Language: Chinese; English
• Published: 20.03.2013
• 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 relates to the technical field of sealing devices, and discloses a sealing device applied to a low temperature centrifugal liquid pump. The sealing device comprises a first pipeline, a second pipeline, a first stop valve and a second stop valve, wherein the first pipeline stretches into an outer seal of the low temperature centrifugal liquid pump, the first stop valve is arranged on the first pipeline, the second pipeline stretches into an inner seal of the low temperature centrifugal liquid pump, and the second stop valve is arranged on the second pipeline. The sealing device applied to the low temperature centrifugal liquid pump not only prevents low temperature liquid in the low temperature centrifugal liquid pump from leaking the exterior of a pump body, but also ensures that low temperature is not conducted to an electric motor side along a pump shaft of the low temperature centrifugal liquid pump. The sealing device applied to the low temperature centrifugal liquid pump is reasonable i