通風(fēng)管道的兩種通風(fēng)方式是什么？

發(fā)布人：http://www.bnlfans.net   發(fā)布時間：2022-07-20 13:52:15

通風(fēng)管道的在建筑中起到通風(fēng)換氣，保持室內(nèi)空氣新鮮，保持室內(nèi)濕度的一種必要裝置，下面是小編介紹的兩種通風(fēng)方式，一起來看一下它們都有哪些特點(diǎn)。

Ventilation duct is a necessary device for ventilation in buildings to keep indoor air fresh and indoor humidity. The following are the two ventilation methods . Let's take a look at their characteristics.

稀釋通風(fēng)：稀釋通風(fēng)又稱混合通風(fēng)，即送人比室內(nèi)污染物濃度低的空氣與室內(nèi)空氣混合，以此降低室內(nèi)污染物的濃度，達(dá)到衛(wèi)生標(biāo)難。

Dilution ventilation: dilution ventilation is also called mixed ventilation, which means that the air with lower concentration of indoor pollutants is sent to mix with indoor air, so as to reduce the concentration of indoor pollutants and meet the health standard.

置換通風(fēng)：在置換通風(fēng)系統(tǒng)中，新鮮冷空氣由房間底部以很低的速度(o．03—o．59t／s)送人，送風(fēng)溫差僅為2—4Y。送入的新鮮空氣因密度大而像水一樣彌漫整個房間的底部，熱源引起的熱對流氣流使室內(nèi)產(chǎn)生垂直的溫度禪度，氣流緩慢上升，脫離工作區(qū)，將余熱和污染物推向房間頂部，由設(shè)在頂棚上或房間頂部的排風(fēng)口直接排出。

Displacement ventilation: in the displacement ventilation system, fresh cold air is sent from the bottom of the room at a very low speed (o.03-o.59t / s), and the temperature difference of the air supply is only 2-4y. The incoming fresh air is as dense as water at the bottom of the whole room. The hot convection air flow caused by the heat source makes the room produce vertical temperature Zen. The air flow rises slowly and leaves the working area, pushing the waste heat and pollutants to the top of the room, which is directly discharged by the exhaust outlet set on the ceiling or on the top of the room.

室內(nèi)空氣近似活塞狀流動。使污染物隨空氣流動從房間頂部排出，工作區(qū)基本處于送入空氣中，即工作區(qū)污染物濃度約等于送人空氣的濃度，這是置換通風(fēng)與傳統(tǒng)的稀釋全方面通風(fēng)的區(qū)別。

Indoor air flows like a piston. The pollutants are discharged from the top of the room with the air flow, and the working area is basically in the incoming air, that is, the pollutant concentration in the working area is about equal to the concentration of the incoming air, which is the difference between displacement ventilation and traditional dilution all-round ventilation.

兩種通風(fēng)方式有略微的差異，通風(fēng)排污效果相比之下，置換通風(fēng)效果要好一點(diǎn)，我們要根據(jù)室內(nèi)的實(shí)際通風(fēng)情況進(jìn)行設(shè)置。

There are slight differences between the two ventilation methods. Compared with the effect of ventilation and sewage discharge, the effect of displacement ventilation is better. We should set it according to the actual indoor ventilation.