一、定風量系統(tǒng)控制
1、系統(tǒng)采用靜壓傳感自動變頻控制(或PLC編程控制)，靜壓傳感自動變頻 控制可以根據(jù)開啟通風設備的數(shù)量變
化，將其感應到的靜壓轉變成0-10v的電信號輸入變頻器從而自動調節(jié)風機頻率，使風機的抽風量與實際所需排風量相匹配，從而確保排風效果，達到節(jié)能節(jié)噪的效果;
2、每臺通風柜安裝一個電子風量調節(jié)閥，其控制開關和變頻控制系統(tǒng)及風機聯(lián)動，可實現(xiàn)單臺或多臺通風設備等不
同工況下的控制。風量調節(jié)閥采用數(shù)顯可調角度的電子風量調節(jié)閥，并且有記憶功能(即可以記住此次調節(jié)的角度，下次打開時仍然調到設計的角度)。
3、系統(tǒng)風閥和風機整體聯(lián)鎖，實現(xiàn)氣流的有序流動，平衡系統(tǒng)風量，防止氣流反串、倒流。

二、變風量系統(tǒng)(VAV)控制
1、系統(tǒng)采用靜壓傳感自動變頻控制，靜壓傳感自動變頻控制可以根據(jù)開啟通風設備的數(shù)量變化，將其感應到的靜壓轉變成0-10v的電信號輸入變頻器從而自動調節(jié)風機頻率，使風機的抽風量與實際所需排風量相匹配，從而確保排風效果，達到節(jié)能節(jié)噪的效果;
2、每臺通風柜安裝一個文丘里變風量風閥，其控制開關和變頻控制系統(tǒng)及風機聯(lián)動，可實現(xiàn)單臺或多臺通風設備等不同工況下的控制。變風量調節(jié)閥門采用數(shù)顯可調角度的文丘里風閥，并且有記憶功能(即可以記住此次調節(jié)的角度，下次打開時仍然調到設計的角度)。
3、系統(tǒng)風閥和風機整體聯(lián)鎖，實現(xiàn)氣流的有序流動，平衡系統(tǒng)風量，防止氣流反串、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.