所述导风管的一端设有供排风扇安装的斗状吸风罩口，导风管的另端设有供电热装置安装的盘状排风口，斗状吸风罩口与盘状排风口相对应；
The ducting hose end set funnel indraft cover use in ventilator installation. The ducting hose else end set discal air exit of power and heat supply set installation.
根据供风方式，该装置有强制送风和自然送风两种。
Acording to air supply mode, the device has forced air supply and natural air supply.
各供风点按仪表的要求设定供风压力。本装置仪表最大耗气量为1600Nm3/h。
The maximum instrument air consumption of this plant is 1600 Nm3/h.
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