The duct air-lubricating oil heat exchanger comprises a group of heat exchange units which are arranged in a circumferential mode, and each heat exchange unit comprises an outer duct upper cover plate, an outer duct lower cover plate, a duct supporting plate and a heat exchange core body which are composed of duct inner walls; an annular oil conveying pipe is arranged outside the heat exchange unit, and a lubricating oil inlet pipe and a lubricating oil outlet pipe are arranged on the oil conveying pipe; the heat exchange core body is fixedly arranged in a space formed by the outer culvert upper cover plate, the outer culvert lower cover plate and the duct supporting plate; the heat exchange core body comprises fixed fins, a heat transfer pipe, a bent pipe and a fin plate, the heat transfer pipe is connected with the bent pipe, the end part of the heat transfer pipe is connected with the oil conveying pipe through a lubricating oil connecting pipe, the fixed fins are arranged at the end part of the heat transfer pipe, and the fin plate is sleeved on the heat transfer pipe. The fins are arranged in a staggered mode, the heat transfer efficiency is improved, the detachable and cleaning functions are achieved, remarkable progress is made in the aspects of improving the lubricating oil cooling effect, reducing the air flowing resistance and enhancing the structural strength, and the heat exchanger is suitable for modern high-performance aircrafts.
本发明公开了一种涵道空气‑滑油换热器,包括一组排列成圆周设置的换热单元,所述换热单元包括由涵道内壁构成的外涵上盖板、外涵下盖板、涵道支板和换热芯体;在换热单元外部设有环形的输油管,在输油管上设有滑油入口管和滑油出口管;换热芯体固定设置在由外涵上盖板、外涵下盖板和涵道支板构成的空间内;所述换热芯体包括固定翅片、传热管、弯管和翅片板,传热管和弯管连接,传热管的端部通过滑油连接管与输油管连接,固定翅片设置在传热管的端部,翅片板套装在传热管上。本发明翅片采用错落排布,提升传热效率,实现可拆卸和清洗功能,在提高滑油冷却效果、降低空气流动阻力以及增强结构强度方面取得了显著进步,适用于现代高性能飞行器。
Ducted air-lubricating oil heat exchanger
一种涵道空气-滑油换热器
2025-03-18
Patent
Electronic Resource
Chinese