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　　With the continuous warming of the average temperature, the central part of each plant has just begun to consider the problem of temperature reduction. It is a popular temperature reduction method in the production workshop of the processing plant to use the ventilation pipe to carry out temperature reduction. What key points must be paid attention to when using the ventilation pipe to reduce the temperature?

　　1、通氣減溫。因為光照房屋建筑、機械設備、身體等熱原造成必須自然通風的場地平均氣溫高過戶外。負壓風機能將房間內熱流快速排出來，讓室內溫度和外部溫度環比增長，以至于生產車間內溫度上升。

　　1. Ventilation temperature reduction. The average temperature of the site that must be naturally ventilated is higher than that of the outdoor area because of the heat sources such as buildings, machinery and equipment, and the body. The negative pressure fan can quickly exhaust the heat flow in the room, so that the indoor temperature and the external temperature increase month by month, so that the temperature in the production workshop rises.

　　2、氣體流動性帶去身體發熱量，氣體流動性加快汗水揮發而消化吸收身體發熱量，進而讓身體覺得清涼，和自然風相同清涼。

　　2. Gas mobility takes away the body's heat. Gas mobility speeds up the evaporation of sweat and digests and absorbs the body's heat, which makes the body feel cool, as cool as the natural wind.

　　3，負壓風機只能自然通風減溫的功效，沒有致冷的作用，清涼是身體的覺得。負壓風機會降是多少溫度的叫法是愚昧的。

　　3. The negative pressure fan can only naturally ventilate and reduce the temperature, and has no cooling effect. It is the feeling of the body to be cool. It is foolish to call the temperature drop of negative pressure wind.

　　4、全部通風工程必須和濕簾相互配合應用，在夏天更酷熱的那時候可將生產車間內溫控在29攝氏之內。但身體的清涼覺得可與空調對比，稍長期沖著濕簾的人要覺得冷而吃不消。

　　4. All ventilation works must be applied together with the wet curtain, and the temperature in the production workshop can be controlled within 29 ℃ in the hottest summer. But the cool feeling of the body can be compared with the central air conditioning. People who have been washing the wet curtain for a long time should feel cold and can't bear it.