系统控制
一、定风量系统控制
1、系统采用静压传感自动变频控制(或PLC编程控制)，静压传感自动变频 控制可以根据开启通风设备的数量变
化，将其感应到的静压转变成0-10v的电信号输入变频器从而自动调节风机频率，使风机的抽风量与实际所需排风量相匹配，从而确保排风效果，达到节能节噪的效果;
2、每台通风柜安装一个电子风量调节阀，其控制开关和变频控制系统及风机联动，可实现单台或多台通风设备等不
同工况下的控制。风量调节阀采用数显可调角度的电子风量调节阀，并且有记忆功能(即可以记住此次调节的角度，下次打开时仍然调到设计的角度)。
3、系统风阀和风机整体联锁，实现气流的有序流动，平衡系统风量，防止气流反串、倒流。
二、变风量系统(VAV)控制
1、系统采用静压传感自动变频控制，静压传感自动变频控制可以根据开启通风设备的数量变化，将其感应到的静压转变成0-10v的电信号输入变频器从而自动调节风机频率，使风机的抽风量与实际所需排风量相匹配，从而确保排风效果，达到节能节噪的效果;
2、每台通风柜安装一个文丘里变风量风阀，其控制开关和变频控制系统及风机联动，可实现单台或多台通风设备等不同工况下的控制。变风量调节阀门采用数显可调角度的文丘里风阀，并且有记忆功能(即可以记住此次调节的角度，下次打开时仍然调到设计的角度)。
3、系统风阀和风机整体联锁，实现气流的有序流动，平衡系统风量，防止气流反串、倒流。
The system adopts static pressure sensor automatic frequency conversion control or PLC programming control, static pressure sensor automatic frequency conversion, control can be based on the number of open ventilation equipment changes, the induced static pressure is converted into 0-10v electrical signal input frequency converter to automatically adjust the fan frequency, so that the fan's exhaust air volume is matched with the actual exhaust air volume, thus ensuring the exhaust air effect and achieving the effect of energy-saving and noise-saving; 2. Each fume hood shall be equipped with an electronic air volume control valve. The control switch, frequency conversion control system and fan linkage can realize the control of one or more ventilators under the same working condition. The Air Volume Control Valve uses the digital display adjustable angle electronic air volume control valve, and has the memory function then may remember this adjustment angle, next time opens still adjusts to the design angle. 3, the System Air Valve and the whole fan interlocking, to achieve the orderly flow of air flow, balance the system air flow, to prevent cross-flow, reverse flow. Vav Control System 1, the system uses static pressure sensor automatic frequency control, static pressure sensor automatic frequency control can be based on the number of open ventilation equipment changes, the induced static pressure is converted into 0-10v electrical signal input frequency converter to automatically adjust the fan frequency, so that the fan's exhaust air volume is matched with the actual exhaust air volume, thus ensuring the exhaust air effect and achieving the effect of energy-saving and noise-saving; 2. Each fume hood shall be equipped with a venturi variable air volume air valve. The control switch, frequency conversion control system and fan linkage can realize the control of single or multiple ventilators under different working conditions. VVVV Valve Adopts Venturi Valve with adjustable angle digital display, and memory function can remember the angle of this adjustment, the next time open still to the design angle. 3, the System Air Valve and the whole fan interlocking, to achieve the orderly flow of air flow, balance the system air flow, to prevent cross-flow, reverse flow.
