应用场合 Application

广泛适用于工业通风、空调通风系统的首级预过滤段，含尘量高的场合

使用场合：需频繁更换滤料的工作环境及恒定风量的运行系统

It is widely used in the first-stage pre-filter section of industrial ventilation, air-conditioning ventilation system, and occasions with high dust content.

Use occasions: Working environment that requires frequent replacement of filter media and operating system with constant air volume.

工作原理 Working principle

自动卷绕式过滤器上方新滤料箱装有一卷新滤料，当大风量高浓度含尘空气经外力引入，通过卷绕式过滤器时，过滤器初始压降随滤尘增加而逐步上升。当阻力上升至设定的终阻值时，压差开关动作，其开关信号传入控制系统，黄色指示灯亮，提醒更换滤料，从而将脏滤料卷下来，过滤面上更换为干净的滤料

The new filter box above the automatic winding filter is equipped with a roll of new filter material. When the highvolume,high-concentration dust-containing air is introduced by external force and passes through the winding filter, the initial pressure drop of the filter gradually rises with the increase of the filter dust. When the resistance rises to the set final resistance value, the differential pressure switch will act, and its switch signal will be transmitted to the control system, and the yellow indicator will light up to remind you to replace the filter  material, so as to roll down the dirty filter material and replace the filter surface with a clean filter. material.

常用规格 Common specifications