凈化風(fēng)管的質(zhì)量直接關(guān)系到體系是否到達(dá)規(guī)劃參數(shù)和正常運(yùn)用要求，其制造一般選用工廠集中制造和現(xiàn)場(chǎng)制造兩種方法。無(wú)論選用哪種制造方法，都要確保制造場(chǎng)地的潔凈和關(guān)閉，好選用水泥地上或地上鋪設(shè)金屬鋼板，其面積不得小于100m?，且滿(mǎn)足采光和照明條件，制造完結(jié)的凈化風(fēng)管要進(jìn)行堆積，并進(jìn)行看守;如果選用現(xiàn)場(chǎng)預(yù)制時(shí)，要確保預(yù)制完結(jié)后的風(fēng)管能夠及時(shí)運(yùn)施工現(xiàn)場(chǎng)，盡量削減風(fēng)管搬運(yùn)的間隔，這樣能夠避免運(yùn)輸過(guò)程中對(duì)風(fēng)管的污染。

The quality of the purification air duct is directly related to whether the system meets the planning parameters and normal operation requirements. Its manufacturing generally adopts two methods: centralized factory manufacturing and on-site manufacturing. Regardless of the manufacturing method used, it is necessary to ensure the cleanliness and closure of the manufacturing site. It is recommended to use cement or metal steel plates laid on the ground, with an area not less than 100m?, And meet the lighting and lighting conditions, the completed purified air ducts must be stacked and guarded; If on-site prefabrication is used, it is necessary to ensure that the completed air duct can be transported to the construction site in a timely manner, and to minimize the interval between air duct handling, so as to avoid pollution to the air duct during transportation.

2.風(fēng)管的規(guī)劃裝置

2. Planning device for air ducts

風(fēng)管板厚的挑選

Selection of duct plate thickness

板厚對(duì)風(fēng)管的質(zhì)量影響較大，為了確保風(fēng)管的重量，要選用小板厚的風(fēng)管，可是選用的過(guò)程還是和風(fēng)管的尺度和壓力等級(jí)有關(guān)。在我國(guó)，大部分的金屬風(fēng)管選用的是熱鍍鋅鋼板和鋼帶，他的基體是冷軋低碳結(jié)構(gòu)鋼板，其抗拉強(qiáng)度>270 ，延伸率>24%，厚度允許差值為d=0.6-1.2mm規(guī)模內(nèi)(±0.07-0.13mm)，由于我國(guó)的工業(yè)技術(shù)和檢測(cè)技術(shù)與國(guó)外具有必定差距，國(guó)內(nèi)選用的風(fēng)管板厚要比國(guó)外標(biāo)準(zhǔn)大20%，但跟著我國(guó)經(jīng)濟(jì)技術(shù)的不斷開(kāi)展，許多國(guó)內(nèi)廠商已經(jīng)有才能出產(chǎn)厚度均勻的板材，因而在風(fēng)管挑選小板厚時(shí)，要挑選差錯(cuò)規(guī)模小的鋼板，避免造成鋼材的糟蹋。

The thickness of the plate has a significant impact on the quality of the air duct. In order to ensure the weight of the air duct, smaller plate thickness air ducts should be selected. However, the selection process is still related to the scale and pressure level of the air duct. In China, the majority of metal air ducts are made of hot-dip galvanized steel plates and steel strips. The base material is cold-rolled low-carbon structural steel plates, with tensile strength>270, elongation>24%, and allowable thickness difference within the range of d=0.6-1.2mm (± 0.07-0.13mm). Due to the certain gap between China's industrial technology and testing technology and foreign countries, the thickness of air duct plates used domestically is 20% larger than foreign standards. However, with the continuous development of China's economy and technology, many domestic manufacturers have been able to produce uniformly thick plates. Therefore, when selecting small plate thicknesses for air ducts, it is necessary to select steel plates with small error sizes to avoid wasting the steel.

此外，從規(guī)劃角度來(lái)看，值得注意的是一個(gè)體系能夠一起存在幾種對(duì)應(yīng)于不同靜壓等級(jí)的風(fēng)管板厚。在正壓風(fēng)管體系的末端或負(fù)壓風(fēng)管的前端，往往能夠選用低壓風(fēng)管，而挨近風(fēng)機(jī)的部位能夠選用中壓或高壓風(fēng)管。

Furthermore, from a planning perspective, it is worth noting that a system can have several duct plate thicknesses corresponding to different static pressure levels together. At the end of a positive pressure air duct system or the front end of a negative pressure air duct, low pressure air ducts can often be used, while medium pressure or high pressure air ducts can be used near the fan.

風(fēng)管的橫向銜接

Horizontal connection of air ducts

橫向銜接不僅是連續(xù)風(fēng)管長(zhǎng)度的一種手法，也能夠起著增強(qiáng)剛度及保持風(fēng)管地橫向尺度的效果。通常橫向銜接的方法是角鋼法蘭銜接，這種銜接方法取決于壁厚，更取決于銜接種類(lèi)及板壁加固方法。橫向銜接中的無(wú)法蘭銜接在低、中壓中等尺度(矩形長(zhǎng)邊小于1.6m)的風(fēng)管中的廣泛的運(yùn)用。

Horizontal connection is not only a technique for continuous duct length, but also plays a role in enhancing stiffness and maintaining the horizontal scale of the duct. The usual method of horizontal connection is angle steel flange connection, which depends on the wall thickness, as well as the type of connection and the reinforcement method of the plate wall. The flange free connection in horizontal connection is widely used in low and medium scale (rectangular long side less than 1.6m) air ducts.

更多的關(guān)于山東通風(fēng)管道加工的問(wèn)題或者詳細(xì)的內(nèi)容，請(qǐng)進(jìn)入我們公司的網(wǎng)站： http://www.nakmcc.cn網(wǎng)站中會(huì)有很多的內(nèi)容僅供參考

For more questions or detailed information about the processing of ventilation ducts in Shandong, please visit our company's website: http://www.nakmcc.cn There will be a lot of content on the website for reference only

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