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　　PP air duct, also known as plastic air duct, is a kind of air duct made of PP raw materials or sheet materials. There are two kinds of air ducts: conventional air duct and flame retardant air duct.

　　PP管道是一種降低有害氣體濃度的基礎(chǔ)設(shè)施。PP風(fēng)管的生產(chǎn)和安裝的板材、管材等主要成品材料按照設(shè)計(jì)及相關(guān)成品的現(xiàn)行國家標(biāo)準(zhǔn)進(jìn)行，并申請(qǐng)出廠檢驗(yàn)合格證，進(jìn)廠材料應(yīng)按照現(xiàn)行國家標(biāo)準(zhǔn)進(jìn)行。

　　PP pipeline is an infrastructure to reduce the concentration of harmful gases. PP air duct production and installation of plates, pipes and other main finished materials shall be carried out in accordance with the current national standards of the design and related finished products, and the factory inspection certificate shall be applied for. Incoming materials shall be carried out in accordance with the current national standards.

　　根據(jù)作用機(jī)理的不同，全通氣可分為稀釋通風(fēng)和置換通風(fēng)。

　　According to the mechanism, total ventilation can be divided into dilution ventilation and displacement ventilation.

　　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，以降低室內(nèi)污染物濃度，達(dá)到難以達(dá)到的衛(wèi)生標(biāo)準(zhǔn)。

　　Dilution ventilation, also known as mixed ventilation, is to send people to mix the air with the indoor air which is lower than the concentration of indoor pollutants, so as to reduce the concentration of indoor pollutants and reach the health standards that are difficult to reach.

　　在置換通風(fēng)系統(tǒng)中，新鮮的冷空氣以極低的速度從房間底部出來

　　In a displacement ventilation system, fresh cold air comes out of the bottom of the room at a very low speed

　　像水一樣稠密的新鮮空氣充滿了房間的底部。熱源引起的對(duì)流熱空氣使室內(nèi)溫度垂直波動(dòng)，氣流緩慢上升，離開工作區(qū)域。

　　Fresh air, as dense as water, fills the bottom of the room. The convective hot air caused by the heat source makes the indoor temperature fluctuate vertically, the air flow rises slowly and leaves the working area.

　　室內(nèi)空氣就像活塞一樣。房間的空氣從頂部也活躍,和操作區(qū)域基本上是空氣進(jìn)來,也就是說,污染物的濃度在操作區(qū)域約等于空氣的濃度,這是區(qū)別置換通風(fēng)和傳統(tǒng)稀釋通風(fēng)。

　　Indoor air is like a piston. The air in the room is also active from the top, and the operation area is basically the air coming in, that is to say, the concentration of pollutants in the operation area is about equal to the concentration of air, which is the difference between displacement ventilation and traditional dilution ventilation.

　　阻燃風(fēng)管是一種先進(jìn)的環(huán)保技術(shù)。它的作用是凈化廢氣和灰塵，使我們的生活環(huán)境越來越好。

　　Flame retardant air duct is an advanced environmental protection technology. Its function is to purify exhaust gas and dust, so that our living environment is getting better and better.

　　有害氣體處理的阻燃管主要包括硫酸霧,鹽酸霧,鉻酸霧,硝酸霧,霧磷酸、氫氟酸霧,氯化氫,氟化氫、硫化氫、氰化氫和其它高污染產(chǎn)業(yè)吸收和凈化處理,符合要求。

　　The flame retardant tubes for hazardous gas treatment mainly include sulfuric acid mist, hydrochloric acid mist, chromic acid mist, nitric acid mist, phosphoric acid mist, hydrofluoric acid mist, hydrogen chloride, hydrogen fluoride, hydrogen sulfide, hydrogen cyanide and other high pollution industries absorption and purification treatment, which meet the requirements.

　　PP阻燃管是由超高分子量聚乙烯、管材制成，其分子量可達(dá)200萬以上的小磨損指數(shù)，使其具有很高的抗滑動(dòng)摩擦能力。耐磨性是一般合金鋼的6.6倍，不銹鋼的27.3倍。17.9倍于酚醛樹脂，6倍于尼龍，4倍于聚乙烯，大大提高了管道的使用壽命。

　　PP flame-retardant pipe is made of ultra-high molecular weight polyethylene and pipe. Its molecular weight can reach more than 2 million with small wear index, which makes it have high anti sliding friction ability. Wear resistance is 6.6 times that of general alloy steel and 27.3 times that of stainless steel. 17.9 times of phenolic resin, 6 times of nylon, 4 times of polyethylene, greatly improving the service life of the pipeline.

　　抽油煙機(jī)使用一段時(shí)間后,抽油煙機(jī)葉輪,排氣扇阻燃管將堅(jiān)持大量的石油,提高葉輪的重量,所以它是不可避免的增加了風(fēng)輪的旋轉(zhuǎn)動(dòng)能,使電動(dòng)機(jī)啟動(dòng)電流增加。

　　After using the range hood for a period of time, the impeller of the range hood and the flame-retardant pipe of the exhaust fan will adhere to a large amount of oil and increase the weight of the impeller, so it inevitably increases the rotating kinetic energy of the fan wheel and the starting current of the motor.

　　油煙機(jī)與楊燃燒風(fēng)道長(zhǎng)期積存的油液，也會(huì)形成火災(zāi)隱患。葉輪,增加粘性油阻燃管,排氣不光滑,塇來煙在廚房空間的傳播,危害人們的健康。

　　The long-term accumulation of oil in the fume hood and poplar combustion duct will also cause fire hazards. Impeller, increase viscous oil flame-retardant pipe, unsmooth exhaust, the spread of smoke in the kitchen space, endangering people's health.