工廠房在通風(fēng)管道的使用上有什么特點(diǎn)？

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一、進(jìn)氣短流問題：所謂進(jìn)氣短流，指的是由進(jìn)氣口進(jìn)入廠房內(nèi)的新鮮空氣，在沒有進(jìn)入作業(yè)區(qū)范圍之前，就已經(jīng)被加熱而上升天窗排氣口排出室外的現(xiàn)象。這樣的進(jìn)氣，起不到改善作業(yè)區(qū)熱環(huán)境以及提高作業(yè)區(qū)空氣質(zhì)量的作用。所以，為提高工業(yè)廠房的自然通風(fēng)效果，一定要盡可能地避免這種進(jìn)氣短流的現(xiàn)象。

A short, intake flow: the so-called short inlet flow, the inlet into the factory in the fresh air, before entering the scope of work area, has been heating up to the roof vent exhaust phenomenon. Such air intake can not improve the thermal environment in the work area and improve the air quality in the work area. Therefore, in order to improve the natural ventilation effect of industrial buildings, it is necessary to avoid the short flow phenomenon as far as possible.

二、通風(fēng)天窗的飄雨問題：不良的口部設(shè)計(jì)常常造成通風(fēng)排氣天窗嚴(yán)重飄雨的問題，給生產(chǎn)造成一定規(guī)模的損失。廠房自然通風(fēng)設(shè)計(jì)，解決了廠房的通風(fēng)排氣問題，卻帶來了飄雨的弊端，致使廠房內(nèi)的作業(yè)區(qū)功能受到影響。所以，設(shè)計(jì)中需要針對性的進(jìn)行解決。

Piaoyu problem two: ventilation skylight mouth often causes poor design of exhaust ventilation skylight Piaoyu, causing losses to the production scale. Design of natural ventilation, to solve the problem of building ventilation, but bring Piaoyu drawbacks, resulting in functional area within the plant affected. Therefore, the design needs to be targeted to solve.

現(xiàn)在一般常用的是矩形通風(fēng)天窗,通常設(shè)計(jì)中采用，矩形通風(fēng)天窗或在天窗水平口設(shè)擋雨片，或在天窗垂直口設(shè)擋雨板，其中在水平口設(shè)擋雨片的做法，不管在通風(fēng)效果還是防飄雨效果，都較為理想，因此在工業(yè)廠房中得到了比較廣泛的應(yīng)用。

It is usually used in rectangular ventilation skylight, usually used in the design of rectangular ventilation skylight or a rain guard at the roof level, or the rain on the roof vertical plate, wherein the rain flakes in the level of export, regardless of the effect of ventilation or anti Piaoyu effect are ideal, so it has been widely used in industrial plants.

三、進(jìn)、排氣口的面積：廠房自然通風(fēng)是利用廠房內(nèi)外空氣的溫度差所形成的熱壓作用和室外空氣流動(dòng)時(shí)產(chǎn)生的風(fēng)壓作用，使廠房內(nèi)外空氣不斷交換，形成自然通風(fēng)。但由于風(fēng)壓作用受自然條件限制，具有多變性，無風(fēng)時(shí)即無風(fēng)壓作用，所以不宜作為廠房自然通風(fēng)的動(dòng)力考慮。在廠房自然通風(fēng)設(shè)計(jì)中，一定要合理協(xié)調(diào)進(jìn)、排氣口面積，力求進(jìn)氣口面積不小于排氣口面積，這應(yīng)該是提高自然通風(fēng)效果的極為重要和有效的技術(shù)措施。

Three, inlet and outlet area: building natural ventilation is the wind pressure generated pressure and outdoor air flow difference formed by inside and outside plant air temperature when the air inside and outside the plant, continuous exchange, natural ventilation. But the wind pressure is limited by natural conditions, and it is changeable and has no wind pressure when there is no wind, so it should not be considered as the motive force of the natural ventilation of the factory building. In the design of natural ventilation, must reasonable coordination between the inlet and outlet area to inlet area of not less than the exhaust port area, it should be very important and effective technical measures to improve the effect of natural ventilation.

此外，在廠房自然通風(fēng)設(shè)計(jì)中，存在一個(gè)誤區(qū)，即一提到自然通風(fēng)，就只是與熱車間有關(guān)的事情。因冷加工廠房內(nèi)不散發(fā)余熱或者僅散發(fā)的熱量很小，使當(dāng)前按熱壓作用進(jìn)行自然通風(fēng)設(shè)計(jì)工作失去了依據(jù)，所以也就很少有人考慮冷加工廠房的通風(fēng)換氣問題。

In addition, there is a mistake in the natural ventilation design of the factory, that is to say, the natural ventilation is only related to the thermal workshop. Because of the cold processing plant is not only the heat or heat emission is very small, so that the current according to the pressing effect of natural ventilation design of the basis of lost, so there are few people to consider the ventilation of the cold processing plant.

雖然廠房內(nèi)散發(fā)的生產(chǎn)余熱很小，然而，因?yàn)槲菝孑椛錈岷屯L(fēng)換氣不良，會(huì)造成廠房內(nèi)部污染氣體匯集，同時(shí)新風(fēng)不能及時(shí)補(bǔ)充，會(huì)對作業(yè)區(qū)人員的工作效率造成嚴(yán)重影響。所以，對于南方地區(qū)及北方夏熱地區(qū)的冷加工廠房，除了一定要設(shè)置屋面隔熱層之外，設(shè)計(jì)上還要?jiǎng)?chuàng)造良好的通風(fēng)換氣條件。

Although the production of waste heat emitted in the plant is very small, however, because the roof radiant heat and poor ventilation, will cause internal plant pollution gas collection, and fresh air can not be timely supplement of the work area, will seriously affect the work efficiency of personnel. Therefore, for the cold processing plants in the southern and Northern hot summer areas, besides the roof insulation layer, the design should also create good ventilation conditions.

有了上面的濟(jì)南通風(fēng)管道小總結(jié)，希望對廣大客戶有所幫助，如果有什么不理解的或者尋求幫助的請點(diǎn)擊我們的網(wǎng)站：http://m.hwzxw.net/或者來電咨詢，我們會(huì)盡全力為您解決

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