1、鍍鋅螺旋風(fēng)管需要水平安裝，直徑或長邊尺寸小于等于400mm，間距不應(yīng)大于4m；大于 400mm，不應(yīng)大于3m。鍍鋅螺旋風(fēng)管的支、吊架間距可分別延長5m 和3.75m；對于薄鋼板法蘭的鍍鋅螺旋風(fēng)管，其支、吊架間距不應(yīng)大于3m。
1. The galvanized spiral air duct shall be installed horizontally, with the diameter or long side size less than or equal to 400mm and the spacing not greater than 4m; More than 400mm, not more than 3m. The spacing between supports and hangers of galvanized spiral air duct can be extended to 5m and 3.75m respectively; For galvanized spiral air duct with thin steel plate flange, the spacing between supports and hangers shall not be greater than 3m.
2、鍍鋅螺旋風(fēng)管支、吊架宜按國標(biāo)圖集與規(guī)范選用強度和剛度相適應(yīng)的形式和規(guī)格。對于直徑或邊長大于2500mm 的超寬、超重等特殊鍍鋅螺旋風(fēng)管的支、吊架應(yīng)按設(shè)計規(guī)定。
2. The support and hanger of galvanized spiral air duct shall be in the form and specification appropriate to the strength and stiffness according to the national standard atlas and specifications. The supports and hangers of super wide, overweight and other special galvanized spiral air ducts with a diameter or side length greater than 2500 mm shall comply with the design requirements.
3、吊架的螺孔應(yīng)采用機械加工。吊桿應(yīng)平直，螺紋完整、光潔。安裝后各副支、吊架的受力應(yīng)均勻，無明顯變形。鍍鋅螺旋風(fēng)管或空調(diào)設(shè)備使用的可調(diào)隔振支、吊架的拉伸或壓縮量應(yīng)按設(shè)計的要求進行調(diào)整。
3. The screw hole of the hanger shall be machined. The suspender shall be straight, with complete and smooth threads. After installation, the stress of each auxiliary support and hanger shall be uniform without obvious deformation. The tension or compression of adjustable vibration isolation supports and hangers used for galvanized spiral air ducts or air conditioning equipment shall be adjusted according to the design requirements.
4、鍍鋅螺旋風(fēng)管垂直安裝，間距不應(yīng)大于4m，單根直管少應(yīng)有2 個固定點。
4. The galvanized spiral air duct shall be installed vertically, and the spacing shall not be greater than 4m. A single straight pipe shall have at least 2 fixing points.
5、支、吊架不宜設(shè)置在風(fēng)口、閥門、檢查門及自控機構(gòu)處，離風(fēng)口或插接管的距離不宜小于200mm。
5. The supports and hangers should not be set at the tuyere, valve, inspection door and automatic control mechanism, and the distance from the tuyere or plug pipe should not be less than 200mm.
6、當(dāng)水平懸吊的主、干鍍鋅螺旋風(fēng)管長度超過20m 時，應(yīng)設(shè)置防止擺動的固定點，每個系統(tǒng)不應(yīng)少于1 個。
6. When the length of the horizontally suspended main and dry galvanized spiral air duct exceeds 20m, a fixed point to prevent swing shall be set, and each system shall not be less than one.
7、鍍鋅螺旋風(fēng)管垂直安裝，間距不應(yīng)大于4m，單根直管少應(yīng)有2 個固定點。
7. The galvanized spiral air duct shall be installed vertically, and the spacing shall not be greater than 4m. A single straight pipe shall have at least 2 fixing points.
8、檢查數(shù)量：按數(shù)量抽查10%，不得少于1 個系統(tǒng)。
8. Inspection quantity: spot check 10% of the quantity, not less than 1 system.
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