Drainage device for directly-buried steam insulation pipe

• Main Authors: WANG WENHAI, HE ZHIXI, CHEN DAWEI, YE YONGQIANG, WANG GUOQI, LIN JINLING
• Format: Patent
• Language: Chinese; English
• Published: 26.11.2021
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROMENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a drainage device for directly buried steam thermal insulation pipe, including outer pipe, thermal insulation layer and inner pipe subassembly, the inner pipe subassembly includes inner pipe, filter plate and seal subassembly, the thermal insulation layer is located between the inner pipe and outer pipe, the inner pipe is located innermost side, the filter plate is located inside the inner pipe, the seal subassembly is located inside the inner pipe, the filter plate is located inside the outer pipe, and the seal subassembly is located inside the inner pipe. The sealing assembly is located on the side edge of the inner pipe, a drainage pipe is arranged under the inner pipe, and the problem that the interior of an existing heat preservation pipe is corroded due to the fact that liquid cannot be drained is solved. 本实用新型公开了一种直埋式蒸汽保温管用的疏水装置，包括外管、保温层和内管组件，所述内管组件包括内管、过滤板和密封组件，所述保温层位于内管和外管之间，且所述内管位于最内侧，所述过滤板位于内管的内侧，所述密封组件位于内管的侧边，所述内管的正下方设置有排水管，本实用新型解决现存的保温管无法排出液体导致内部腐蚀的问题。