| 摘要 |
FIELD: oil producing industry; mechanical engineering. ^ SUBSTANCE: invention relates to multistage centrifugal pumps designed for delivering water into formations in oil fields. Proposed pump consists of housing, covers, shock absorbing sliding bearings, impellers and guide assemblies. The latter are furnished with thrust sliding rings. Sliding rings in guide assemblies enclose shock absorbing sliding bearings and contact with thrust sliding rings of driving and driven disks of impellers. Impellers are installed in chambers of guide assemblies for longitudinal displacement within 0.05 and 0.2 mm. Clearances between side walls of guide assemblies and impellers are from 1.2 to 1.7 mm. ^ EFFECT: reduced labor input at assembling of pump, increased efficiency. ^ 2 dwg
|
