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防腐通風系列

通風系統

    實驗室內往往存在許多不利于人體健康的化學物質污染源,特別是有害氣體,將其排除非常重要。但與此同時,能源往往會被大量的消耗,因而實驗室的通風控制系統的要求漸高,從早期CAV(定風量控制),2-State(雙穩態控制),VAV(變風量控制)系統,到最新的UBC(自適應性控制)系統一一既安全,又符合節約能源的需要。
    總之,實驗室的最新觀念就是將整個實驗室當作是一臺排風柜,如何有效的控制各種進排氣,達到既安全又經濟的效果是至關重要的。實驗室常用排風設備主要有:通風柜、原子吸收罩、萬向排氣罩、吸頂式排氣口、臺上式排氣口等。其中通風柜最為常見。
Laboratory often exists chemicals pollution sources conducive to human health, especially harmful gases, to exclude it is very important. At the same time, energy will be largely consumpted, and thus the requirements of the laboratory's ventilation control system gradually increases, from the early CAV (constant air volume control), 2-State (bistable control), VAV (variable air volume control) system to the latest UBC (adaptive control) system, safe, and consistent with the need for energy conservation.
In short, the latest concept of the laboratory is to regard laboratory as a fume hood, how to effectively control a variety of intake and exhaust, is essential to achieve safe and economical effects. Laboratory ventilation equipment: fume hoods, atomic absorption cover, universal exhaust hood, ceiling exhaust port stage exhaust port. The fume hood is the most common.

VAV系統 VAV system

    VAV變風量控制系統是依據調節門不同之開度,來決定不同的排氣量,以維持一固定的表面平均風速設計基準,變風量通風控制系統可以提供較佳的捕捉率及節能要求,此系統亦可由調整補償空氣的方式來達成所需之室內壓力,在正常排氣量狀況時只需要最小之通風及溫度控制量,當排氣量增加時可由增加進氣量予以平衡。
    其優點是:能最大程度節約風機運行能耗,減少能源消耗及運行成本;維持穩定的面風速,保障實驗人員的安全;靈活性好,易于改、擴建,增減設備。
    其缺點是:初期建設成本昂貴,后期維護成本較高。
VAV control system: according to the regulation for the gate opening to determine the displacement in order to maintain a fixed average surface wind speed design basis, variable air volume ventilation control system can provide a better capture rate and energy-saving requirements, this systemor the way of the air by adjusting the compensation to achieve the required pressure in the chamber, only need a minimum of ventilation and tempera-ture control in the normal displacement situation, when the displacement is increased by the increase in feed rate to be balanced.
[ts advantages are: the fan energy consumption of the greatest degree of conservation, reduce energy consumption and operating costs; to maintain the stability of surface wind speed to protect the safety of laboratory personnel; good flexibility, easy to change, expansion, changes in equipment.
The disadvantages are: the initial construction cost is expensive, high maintenance cost.
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