The invention discloses an infrared stealth treatment device and method for ship exhaust, and relates to the technical field of ship infrared stealth. One end of a flange connecting piece is connectedwith an engine starting exhaust port, the other end of the flange connecting piece is connected with a petal nozzle, a mixing pipeline is coaxially fixed to the rear side of the petal nozzle and thepetal nozzle, and the tail end of the mixing pipeline is connected with an air film cooling ring. The front end of the heat-shielding cover is connected to the inner side of the front end of the mixing pipeline. A flow guide cone is fixed in the mixing pipeline and is coaxial with the mixing pipeline. Due to the design of a threaded piece on the flow guide cone, rotation of airflow is increased, high-temperature gas and low-temperature gas are further mixed, the exhaust cooling effect is improved, the spray flow in the flow guide cone can be adjusted, and the infrared stealth requirements of ship exhaust at different detection angles are met. The device and the method have the beneficial effects that the high-temperature nuclear effect of exhaust is reduced, the infrared index of the device is remarkably reduced, and the device is simple in structure and easy to implement; the heat dissipation effect of spraying is greatly improved; and the reliability of the system is ensured, and meanwhile adjustability is achieved.

    本发明公开一种舰船排气红外隐身处理装置及方法,涉及舰船红外隐身技术领域,法兰连接件的一端与发动起排气口相连另一端连接花瓣喷嘴,在花瓣喷嘴后侧与花瓣喷嘴同轴的固定有混合管道,混合管道末端连接有气膜冷却环。遮热罩前端连接在混合管道前端内侧。导流锥固定在混合管道内,其与混合管道同轴设置。导流锥上的螺纹片设计增加了气流的旋转进一步使得高低温气体进行参混提升了排气的冷却效果,且导流锥中的喷雾流量可以进行调节,满足了舰船排气的不同探测角下的红外隐身需求。本发明的有益效果为:降低了排气的高温核效应,使得其红外指标显著降低,其结构简单,易于实现;极大的提高了喷雾的散热效果;保证系统可靠性的同时兼具可调节性。


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    Title :

    Infrared stealth treatment device and method for ship exhaust


    Additional title:

    一种舰船排气红外隐身处理装置及方法


    Contributors:
    SHI HONG (author) / JI LEI (author) / XU WENBING (author) / WANG JUNYI (author) / HU LIANGCHUN (author)

    Publication date :

    2021-03-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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