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山東通風(fēng)管道可以運(yùn)用機(jī)械通風(fēng)來(lái)完結(jié)，也可以運(yùn)用自然通風(fēng)來(lái)完結(jié)，按系統(tǒng)持征不同，全面通風(fēng)可分為全面送風(fēng)，全面排風(fēng)和全面送、排風(fēng)三類(lèi)。按效果機(jī)理不同，全面通風(fēng)可分為稀釋通風(fēng)和置換通風(fēng)兩類(lèi)。

Shandong ventilation pipeline can be completed by mechanical ventilation or natural ventilation. According to different system requirements, comprehensive ventilation can be divided into three types: comprehensive air supply, comprehensive air exhaust and comprehensive air supply and exhaust. According to different effect mechanisms, general ventilation can be divided into dilution ventilation and displacement ventilation.

(1)稀釋通風(fēng)稀釋通風(fēng)又稱(chēng)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，以此下降室內(nèi)污染物的濃度，到達(dá)衛(wèi)生標(biāo)難。

(1) Dilution ventilation dilution ventilation is also known as mixed ventilation, that is, send air with lower concentration of indoor pollutants to mix with indoor air, so as to reduce the concentration of indoor pollutants and reach the sanitary standard.

(2)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．03o．59t／s)送人，送風(fēng)溫差僅為24Y。送入的新鮮空氣因密度大而像水相同充溢整個(gè)房間的底部，熱源引起的熱對(duì)流氣流使室內(nèi)發(fā)作筆直的溫度禪度，氣流緩慢上升，脫離作業(yè)區(qū)，將余熱和污染物面向房間頂部，由設(shè)在頂棚上或房間頂部的排風(fēng)口直接排出。

(2) Displacement ventilation In the displacement ventilation system, fresh cold air is sent from the bottom of the room at a very low speed (o.03o.59t/s), and the temperature difference of the air supply is only 24Y. Due to the high density of fresh air, it overflows the bottom of the whole room like water. The heat flow caused by the heat source causes a straight temperature rise in the room. The air flow rises slowly and leaves the operation area. The waste heat and pollutants face the top of the room, and are directly discharged from the air outlet on the ceiling or the top of the room.

室內(nèi)空氣近似活塞狀活動(dòng)．使污染物隨空氣活動(dòng)從房間頂部排出，作業(yè)區(qū)根本處于送入空氣中，即作業(yè)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)的稀釋全面通風(fēng)的差異。顯著置換通風(fēng)的通風(fēng)效果比稀釋通風(fēng)好得多。

The indoor air moves like a piston. The pollutants are discharged from the top of the room with the air movement. The operating area is basically in the air, that is, the concentration of pollutants in the operating area is about equal to the concentration of the air sent. This is the difference between displacement ventilation and traditional dilution general ventilation. The ventilation effect of significant displacement ventilation is much better than that of dilution ventilation.

部分通風(fēng)：

Partial ventilation:

部分通風(fēng)就是運(yùn)用部分氣流，使部分地址不受有害物的污染，形成杰出的空氣環(huán)境。

Partial ventilation is the use of partial air flow, so that part of the site will not be polluted by harmful substances, forming an excellent air environment.

部分通風(fēng)系統(tǒng)分為部分送風(fēng)和部分排風(fēng)兩大類(lèi)。部分排風(fēng)是將污染物就地捕集、凈化后排放至室外。部分送風(fēng)是將經(jīng)過(guò)處理的、符合要求的空氣送到部分作業(yè)地址，以保證部分區(qū)域的空氣條件。

Partial ventilation system is divided into partial air supply and partial exhaust. Part of the exhaust is to collect and purify pollutants on site and then discharge them to the outside. Partial air supply is to send the treated and qualified air to some operation sites to ensure the air conditions in some areas.

部分通風(fēng)辦法作為保證作業(yè)和生活環(huán)境空氣質(zhì)量、防止室內(nèi)環(huán)境污染的技術(shù)措施應(yīng)優(yōu)先考慮。

Partial ventilation measures should be given priority as technical measures to ensure the air quality of the working and living environment and prevent indoor environmental pollution.

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