使用螺旋風(fēng)管比傳統(tǒng)矩形風(fēng)管的優(yōu)勢(shì)有哪些？

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1.相同的環(huán)境與條件下，可由低速排風(fēng)調(diào)整高速排風(fēng)，系統(tǒng)設(shè)計(jì)可減少風(fēng)管總量，不僅經(jīng)濟(jì)，而且節(jié)約空間

1. Under the same environment and conditions, it can be adjusted from low-speed exhaust to high-speed exhaust. The system design can reduce the total amount of air duct, which is not only economical, but also saves space

2.同等條件下滿狀輔材（吊鍵等）結(jié)果簡(jiǎn)單，數(shù)量少，安裝輔材造價(jià)降低20%到35%

2. Under the same conditions, the results of full auxiliary materials (hanging keys, etc.) are simple, the quantity is small, and the cost of installing auxiliary materials is reduced by 20% to 35%

3.施工時(shí)吊裝效率比矩形風(fēng)管提高一倍

3. During construction, the hoisting efficiency is twice as high as that of rectangular air duct

4.相比傳統(tǒng)矩形風(fēng)管，螺旋風(fēng)管的主材造價(jià)降低15%左右，同等管徑，板厚降低13-17%。主材造價(jià)降低.

4. Compared with the traditional rectangular air duct, the main material cost of spiral air duct is reduced by about 15%, and the plate thickness is reduced by 13-17% with the same pipe diameter. The cost of main materials is reduced

螺旋風(fēng)管比傳統(tǒng)矩形風(fēng)管更具備優(yōu)越性

Spiral duct has more advantages than traditional rectangular duct

1.)圓形風(fēng)管比矩形風(fēng)管結(jié)構(gòu)更加合理，在降低降低顫震噪音方面要優(yōu)于傳統(tǒng)矩形風(fēng)管

1. ) the structure of circular air duct is more reasonable than that of rectangular air duct, and it is better than traditional rectangular air duct in reducing vibration noise

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2.)連接部件少，在系統(tǒng)通風(fēng)質(zhì)量與密封性能方面螺旋風(fēng)管比矩形風(fēng)管要好

2.) there are few connecting parts, and the spiral air duct is better than the rectangular air duct in terms of system ventilation quality and sealing performance

3.)螺旋風(fēng)管外型比矩形風(fēng)管更美觀

3.) spiral air duct is more beautiful than rectangular air duct

鍍鋅螺旋風(fēng)管

Galvanized spiral air duct

風(fēng)管采用鍍鋅鋼板，其厚度應(yīng)符合GB50243-2002下表選用以下規(guī)定。形風(fēng)管的彎管，可采用內(nèi)弧型或內(nèi)斜線矩形彎管。當(dāng)邊長(zhǎng)A大于或等于500mm時(shí)，應(yīng)設(shè)置彎管導(dǎo)流片。矩形風(fēng)管的三通或四通，可采用分叉式或分隔式。風(fēng)管與法蘭連接，翻邊應(yīng)平整，寬度應(yīng)一致且不小于6mm，并不得有開裂及孔洞，對(duì)角及翻邊縫應(yīng)涂上密封膠。法蘭用料規(guī)格見下表： 風(fēng)管法蘭制作應(yīng)先做好模具。模具做好后檢查模具的幾何尺寸，對(duì)角線是否符合設(shè)計(jì)及規(guī)范要求，檢查無誤后進(jìn)行下料、校直、鉆鉚釘孔（孔距不大于150mm）、組裝、焊接、鉆孔。另外對(duì)邊長(zhǎng)大于800的風(fēng)管應(yīng)加固措施。風(fēng)管及法蘭尺寸的允許偏差和檢驗(yàn)方法見下表：

The air duct shall be made of galvanized steel plate, and its thickness shall comply with the following provisions in the following table of GB50243-2002. For the elbow of V-shaped air duct, the inner arc or inner oblique rectangular elbow can be adopted. When the side length a is greater than or equal to 500mm, elbow deflector shall be set. The tee or cross of rectangular air duct can be bifurcated or separated. When the air duct is connected with the flange, the flanging shall be flat, the width shall be consistent and not less than 6mm, and there shall be no cracks and holes. The diagonal and flanging joints shall be coated with sealant. See the following table for the specifications of flange materials: the mold shall be made first for the fabrication of air duct flange. After the mold is completed, check whether the geometric dimension and diagonal line of the mold meet the design and specification requirements. After the inspection is correct, blanking, straightening, drilling rivet holes (hole spacing not greater than 150mm), assembly, welding and drilling shall be carried out. In addition, reinforcement measures shall be taken for air ducts with side length greater than 800. The allowable deviation and inspection method of air duct and flange size are shown in the table below:

風(fēng)管安裝過程中，進(jìn)行風(fēng)管分段檢漏測(cè)試。風(fēng)管制作安裝后，要檢驗(yàn)合格才交付下步保溫工序。風(fēng)管吊桿的末端要滿足調(diào)節(jié)風(fēng)管標(biāo)高的要求，吊桿制作好后，根據(jù)風(fēng)管的布置位置進(jìn)行安裝，水平風(fēng)管的間距不大于3m，垂直風(fēng)管不大于4m。風(fēng)管支吊架、防火閥、電動(dòng)風(fēng)閥等部件安裝處須單獨(dú)設(shè)支吊架處，一般風(fēng)管每隔3米左右設(shè)支吊架一個(gè)，支吊架的作法可參照采暖通風(fēng)**標(biāo)準(zhǔn)圖集。風(fēng)管支、吊架不得設(shè)置在風(fēng)口、閥門、檢查門及自控機(jī)構(gòu)處。吊桿不得直接固.

During the installation of air duct, conduct sectional leak detection test of air duct. After the air duct is manufactured and installed, it shall be delivered to the next insulation process only after passing the inspection. The end of the air duct suspender shall meet the requirements for adjusting the elevation of the air duct. After the suspender is fabricated, it shall be installed according to the layout position of the air duct. The spacing between horizontal air ducts shall not be greater than 3m and vertical air ducts shall not be greater than 4m. Air duct supports and hangers, fire dampers, electric air valves and other components shall be installed separately. Generally, air ducts shall be provided with one support and hanger every 3M. The method of support and hanger can refer to the standard atlas of heating and ventilation * *. Air duct supports and hangers shall not be set at air outlets, valves, inspection doors and automatic control mechanisms. The suspender shall not be fixed directly

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