本发明公开了一种防砂滤尘过滤装置,包括具有通风通道的框体、过滤器和分流器,框体包括相对设置并分别与通风通道连通的进气侧和排气侧,分流器远离进气侧布设并使框体的排气侧分隔形成清除流通道和主流通道,过滤器包括沿气流方向倾斜布设的防砂模块和防尘模块,防砂模块用于与流入通风通道的含尘气流中的砂尘碰撞从而使含尘气流中的砂尘在与壁面碰撞反弹和惯性力的作用下流入至清除流通道内并排出,防尘模块设于防砂模块出风的一侧,以使经过防砂模块过滤后的气流进行二次过滤,二次过滤后的气流流入至主流通道内。本发明还公开了一种直升飞机。本发明的防砂滤尘过滤装置,降低了防尘模块的更换和清洗频率,维护成本低。
The invention discloses a sand-preventing dust-filtering filter unit. The filter unit comprises a frame body with a ventilation channel, a filter and a flow divider, wherein the frame body comprises an air inlet side and an air outlet side which are oppositely arranged and communicate with the ventilation channel; the flow divider is arranged far away from the air inlet side and divides the exhaust side of the frame body into a clearing flow channel and a main flow channel; the filter comprises a sand prevention module and a dust prevention module which are obliquely arranged in an airflow direction; the sand prevention module is used for colliding with sand and dust in dust-containing airflow flowing into the ventilation channel so as to allow the sand and the dust in the dust-containingairflow to flow into the clearing flow channel and to be discharged under the action of collision rebound and inertia force of the sand and the dust and the wall surface; and the dustproof module is arranged on the air outlet side of the sand control module, so the airflow filtered by the sand prevention module is subjected to secondary filtration, and the airflow having undergone secondary filtration flows into the main flow channel. The invention further discloses a helicopter. According to the sand-preventing dust-filtering filter unit, the replacement and cleaning frequency of the dust prevention module is reduced, and maintenance cost is low.
防砂滤尘过滤装置及直升飞机
2022-03-25
Patent
Elektronische Ressource
Chinesisch