| 摘要 |
FIELD: hydraulic engineering; repair of heat and hydraulic insulation shells. ^ SUBSTANCE: method comes to forming separate members of shell at plant and their mounting on section to be protected directly on site. Proposed heat and hydraulic insulation shell is formed as case split in two halves vertically to enclose protected section of hydraulic works. Outer shell of case half is made in form of formwork of hard material, for instance, metal, and heat-insulating layer pointed to surface of be protected is made of low-density synthetic material, for instance, formed polyurethane, whose surface is made to suit form of surface to be protected. Thickness of heat-insulating layer is taken to provide positive buoyancy of heat and hydraulic insulation shell. In process of mounting, halves of case are dipped in water and brought to hydraulic works after preliminary connection, and then, adjusting buoyancy of halves of case, they are installed on section to be protected so that upper edge of case be at border of section to be protected and then halves of case are finally connected to each other tightly pressing heat insulating layer to surface of be protected. In process of mounting of heat and hydraulic insulation shell its buoyancy is regulated by any known method, for instance, fitting on weight to keep longitudinal axis of split case vertically. ^ EFFECT: simplified process of reconditioning of heat and hydraulic insulation shell, reduced number of lifting and transportation facilities used in process. ^ 2 cl, 6 dwg |
