1.
Laboratory airflow control speciality design requirements / 實驗室氣流控制系統設計要求
In any case, air should always flow from the office, the corridor and auxiliary areas into the lab area. And all chemical laboratory exhaust gas should be directly discharged to the outside, and mustn’t be recycled. Therefore, unless chemical laboratory is required to clean itself, its relative to other space within a building maintains negative pressure of the camp.
在任何情況下，氣流均應從辦公室、走廊和輔助區域進入實驗室區域，所有化學實驗室排出的氣體均應直接排放至室外，而不得循環利用。因此，除非化學實驗室本身有潔凈要求，否則其相對樓宇內其他空間，均應維持負壓。
Experiment indoor airflow should be from low risk areas to high risk areas. Generally speaking, it should keep the flow of gas 47 liters per second between the above area (170 cubic meters per hour). Office areas in a laboratory should always maintain a positive pressure relative to the corridor and laboratory.
實驗室內氣流應從低危險區域流向高危險區域。一般來說，應維持上述區域之間47升/秒（即170立方米/小時）的氣流量。實驗室建筑的辦公區域，應相對于走廊和實驗室始終維持正壓。
Under normal conditions, 6-12 times every hour’s room air changes are considered appropriate. When there is analysis equipment which is likely to produce high heat load or there is large local exhaust air in the room, there will be a need to increase in volume.
通常情況下，6-12次/小時的房間換氣次數都被認為是合適的。當實驗室內有可能產生高熱負荷的分析設備，或房間內有較大量的局部排風時，則可能需要相應增大換氣量。
The laboratory should adopt full fresh air system, the central air supply unit and compensate laboratory exhaust demand.
實驗室應采用全新風系統，采用中央新風機組送風，并補償實驗室排風需求。實驗室排風不得循環利用于其它通風需求。
In order to ensure the safety of the staff, keep the distance of discharge point and flat roof at least 3 meters (ten feet) or even higher in order to exhaust emissions and effectively diluted. The specific choice should be calculated to confirm.
為保證人員的安全，應保持尾氣排放點距離屋頂平面點至少3米（即10英尺），甚至可能要求更高，以便尾氣有效地排放及稀釋。具體選擇應經過計算確認。
2.
Interpretation of variable air volume speciality / 解讀變風量系統
In the large ventilation system, in order to solve the ventilation equipment at the end of the variable air volume demands and constant wind speed and to achieve further adjustment, we apply the frequency conversion and variable air volume ventilation control.
在大型通風系統中，為了解決通風設備末端的變風量要求和面風速恒定的要求，實現進一步調節。我們應用變頻+變風量通風控制來解決。
Interpretation of the variable air volume speciality
解讀變風量系統
Laboratory airflow control aims
實驗室氣流控制目標
Security (Accord with the regulations and standards)
安全性（符合規范要求）
Local exhaust control
局部排風控制
Regional pressure control
區域壓力控制
Energy-saving
降低能耗
Easy to maintenance and management
易維護管理
Availability and flexibility
系統靈活性
Adaptive control （Temperature and humidity）
舒適性控制（溫濕度）
Variable air volume control ventilation：Every country has strict requirements of the ventilation cabinet winds, For laboratory ventilation cabinet is the most important level of protective equipment. Generally we should always maintain constant ventilation counter wind speed of 0.5 m/s. Too high or too low surface wind speed can produce dangerous side leakage.
通風柜變風量控制：通風柜作為化學實驗室內重要的一級防護設備，各國對于通風柜的面風速均有嚴格要求。通常要求始終維持通風柜面風速恒定為0.5m/s。過高或者過低的面風速，均會產生泄漏危險。
Local exhaust control: Cover cabinet , atomic absorption, reagent cabinets and some other local exhaust control should be able to continuously and effectively control and discharge the exhaust gases quickly and securely.
其他局部排風控制：對于萬象抽氣罩、原子吸收罩、試劑柜等局部排風設施，應能夠持續、高效地控制，安全迅速地將氣體排出。
Room pressure control: Generally we should maintain negative pressure of the laboratory relative to that of the corridor in order to avoid cross contamination of the office or production areas.
房間壓力控制：通常情況下要求始終保持實驗室相對于走廊的負壓，以免對周圍辦公或生產區域造成交叉污染。
Reduce energy consumption: On the premise of safety, significantly reduce energy consumption, including air conditioning and fan energy consumption.
降低能耗：在充分滿足安全的前提下，大幅降低運行能耗，包括空調以及風機能耗。
3.
The working principle of ventilation counter wind speed control system / 通風柜面風速控制系統工作原理
1、Surface wind speed control system continuously monitor s the actual exhaust air volume of the fume cabinet . Calculate the average wind speed of the open area according to the height of the window. When the exhaust pipe pressure changes or the window height changes, the system responses within a second and adjust the opening of the air valve to keep the average surface wind speed of the window open surface stable.
面風速控制系統持續地監測通風柜實際排風量，根據視窗高度計算出視窗開口面積的平均面風速，當排風管道壓力變化或視窗高度發生變化時,系統在≤1S的時間做出反應，及時調整風閥開度保持視窗開口面積的平均面風速穩定。
2、Under different experimental conditions, we can set different parameters on the panel.
不同實驗狀況時，可在面板上設置不同的參數。
3、The system controls surface wind speed at a set speed ( 0.5m/s) through infrared detector when there is an operator in front of the ventilation cabinet and the system automatically switches to another value(e.g. 0.3m/s) to save costs when there is no operator in front of the fume cabinet .
系統通過紅外線監測器當通風柜前有操作人員工作時面風速控制在某一設定值（0.5m/s)，當通風柜前無人操作時，系統自動轉換到另一設定值（如0.3m/s)以節省運行費用。
4、When ventilation cupboard door was off, the air valve maintains the minimum of the ventilation cabinet exhaust air 1500MM , the ventilation cabinet 300CMH.
當通風柜門關閉后，風量閥要維持通風柜的小排風量,1500MM通風柜為300CMH。
5、Due to the fault surface wind speed is high or low, there will be sound-light alarms.
由于故障面風速過高或過低時有聲光報警。
6、When temperatures of ventilation cabinet are high, there will be sound-light alarms.
通風柜溫度過高時有聲光報警。
7、When the position of the ventilation cabinet is too high, there will be sound-light alarms.
通風柜門位過高時有聲音報警。
8、When there is an exception, open the emergency discharge mode control and the system will open all the air valves. The maximum air volume of the ventilation cabinet s is free from the control of the wind speed value.
當出現異常情況時，開啟緊急排放模式控制,系統將全部打開風閥,本臺通風柜風量，不受面風速值的控制。
4.
We provide laboratory for variable air volume systems CON-LABC with VAV fume hood control system CON-FHC,using the world’s most advanced VAV solutions through a digital controller for laboratory supply and exhaust,fume hood face velocity for strict monitoring and control.
我們提供的實驗室變風量體統CON-LABC與通風柜變風量控制系統CON-FHC,采用世界的VAV解決方案，通過數學控制器對實驗室送排風、通風柜的面風速，進行嚴格的監視與控制。
Security no matter how to adjust the opening window, you can always precise control of the fume hood wind speed of 0.5m/s+ 20% of imports. At the same time the exhaust valve air flow tracking changes in the amount of wind to send the air valve to increase or decrease exhaust volume to ensure that the design of the infiltration air flow is constant, thus ensuring a laboratory micro-negative pressure and airflow direction. System strong adaptability, and energy consumption can be decline to fully protect the safety on this premise.
保障無論調節窗開度如何，始終可以控制通風柜進口風速為0.5m/s.同時排放閥風量追蹤送風閥的風量的變化。增大或減小排風量，以保證設計的滲透風量恒定，從而保證實驗室的微負壓及正確的氣流方向。系統適應性強，可以在充分保障安全的前提下降低能耗。
5.
We provide laboratory for variable air volume systems CON-LABC with VAV fume hood control system CON-FHC,using the world’s most advanced VAV solutions through a digital controller for laboratory supply and exhaust,fume hood face velocity for strict monitoring and control.
我們提供的實驗室變風量體統CON-LABC與通風柜變風量控制系統CON-FHC,采用世界的VAV解決方案，通過數學控制器對實驗室送排風、通風柜的面風速，進行嚴格的監視與控制。
Security no matter how to adjust the opening window, you can always precise control of the fume hood wind speed of 0.5m/s+ 20% of imports. At the same time the exhaust valve air flow tracking changes in the amount of wind to send the air valve to increase or decrease exhaust volume to ensure that the design of the infiltration air flow is constant, thus ensuring a laboratory micro-negative pressure and airflow direction. System strong adaptability, and energy consumption can be decline to fully protect the safety on this premise.
保障無論調節窗開度如何，始終可以控制通風柜進口風速為0.5m/s.同時排放閥風量追蹤送風閥的風量的變化。增大或減小排風量，以保證設計的滲透風量恒定，從而保證實驗室的微負壓及正確的氣流方向。系統適應性強，可以在充分保障安全的前提下降低能耗。