通風設備管道制作方法及要求

發布人：http://www.ddlzhd.com   發布時間：2023-11-04 10:37:46

通風、空氣調節工廠所使用的主要材料、設備、成品辦成品等均應有出廠合格證明書或質量鑒定文件。通風工廠必須按批準的設計圖紙施工。通風管道制作的尺寸應按圖施工，均以內徑為準，連接管應與閥體相吻合。圓形彎管的彎曲半徑和少節數及矩形彎管的彎曲半徑應按《建筑安裝工程施工技術操作規程》中有關規定執行。圓形風管的三通，其夾角為90o。風管各管段的連接應采用可拆卸的形式。風管厚度按標準。

The main materials, equipment, finished products, etc. used in ventilation and air conditioning factories should have factory certificates of conformity or quality appraisal documents. The ventilation factory must be constructed according to the approved design drawings. The size of the ventilation pipeline production should be constructed according to the drawing, and the inner diameter should be used as the standard. The connecting pipe should match the valve body. The bending radius and number of small sections of circular bends, as well as the bending radius of rectangular bends, should be executed in accordance with the relevant provisions of the "Technical Operation Regulations for Construction and Installation Engineering". The tee of a circular air duct has an included angle of 90o. The connection of each section of the air duct should be in a detachable form. The thickness of the air duct shall comply with the standard.

部件安裝前應進行如下檢查，經檢查合格并填寫有關驗收資料后方可進行安裝：風口表面應平整，偏差<=2mm，矩形風口對角線之差<=3mm，圓形風口任意正交兩直徑的允許偏差<=2mm。風口各轉動部分應靈活，葉片或插板應平直，葉片內距應均勻，散流器的擴數環和調節應同軸，軸向間距分布勻稱，葉片等啟閉應完全，人防密閉閥方向與沖擊波相準確，不可裝反，葉片全開或全閉，不可作調節風量之用。各類閥門制作應牢固，調節制動裝置應準確靈活、可靠，并標明閥門啟閉方向，防火閥殼體厚度應大于等于2mm，材料選用應符合GB50243-97規范要求。柔性短管人防濾毒系統選用橡膠型，其他選用三防防火帆布，各吊、支、托架，應平整牢固，焊縫飽滿，抱箍的圓弧應均勻。

Before installing the components, the following inspections should be carried out. After passing the inspection and filling in relevant acceptance materials, the installation can only be carried out: the surface of the air outlet should be flat, with a deviation of<=2mm, the difference between the diagonal lines of the rectangular air outlet<=3mm, and the allowable deviation between any two orthogonal diameters of the circular air outlet<=2mm. The rotating parts of the air outlet should be flexible, the blades or insert plates should be straight, the internal distance between the blades should be uniform, the expansion ring and adjustment of the diffuser should be coaxial, the axial spacing should be evenly distributed, the opening and closing of the blades should be complete, the direction of the civil air defense sealing valve should be accurate with the shock wave, and cannot be reversed. The blades should be fully open or fully closed, and cannot be used for adjusting the air volume. The production of various types of valves should be firm, the adjustment and braking device should be accurate, flexible, and reliable, and the valve opening and closing direction should be indicated. The thickness of the fire valve shell should be no less than 2mm, and the material selection should comply with the requirements of GB50243-97 specification. The flexible short pipe civil air defense and gas filtration system adopts rubber type, while the other uses three proof fireproof canvas. Each suspension, support, and bracket should be flat and firm, with full welds, and the arc of the hoop should be even.

管道在安裝前應對其除塵，保證管道內外表面整潔，管道在安裝前應檢查其平整和水平度，經監理或甲方認可并填寫有關驗收資料后方可安裝。管道吊裝前先要核對現場結構預留孔洞的位置、尺寸、標高，并將風管內外擦拭干凈，嚴防施工中的垃圾管道中，安裝部位的障礙物要清理。

Before installation, the pipeline should be dedusted to ensure the cleanliness of the internal and external surfaces. Before installation, the pipeline should be checked for flatness and levelness, and can only be installed after being approved by the supervisor or Party A and filling in relevant acceptance materials. Before lifting the pipeline, it is necessary to check the position, size, and elevation of the reserved holes in the on-site structure, and wipe the inside and outside of the air duct clean to strictly prevent garbage from being left in the pipeline during construction. Obstacles in the installation site should be cleaned.

管道和配件可拆卸的接口，不得裝設在墻和走道樓板內。支、吊、托架的預埋件或膨脹螺栓，位置應準確、牢固可靠，埋入部分不得油漆，并應支除油污。不保溫支、吊、托架間距無設計要求應遵照下列執行。水平安裝：風管直徑或大邊長小于40mm，間距<=4m;大于或等于400mm，則間距≤3m。垂直安裝：間距<=4m但每根立管的固定件應大于等于2個。保溫管應符合設計要求。支、吊、托架不得設置在風口、閥門、檢視門外。吊架不得直接吊在法蘭上，并在適當處設防止擺動的固定點。防火閥、電動風閥等部件安裝處必須單獨設吊支架。法蘭的墊料厚度為3—5mm，塑料不得凸入管內。連接法蘭的螺栓。其螺母應在同一側，材質按設計要求進行。風管水平安裝，水平度應<=3/1000，總偏差應<=20mm。風管垂直安裝，垂直度應<=2/1000，總偏差應<=20mm。人防出墻風管按人防要求作坡度。風管的閥類調節部門應安裝在便于操作的部位，閥板應順氣流方向插入，防火閥安裝位置應正確，易熔件應在系統安裝后裝入。各類風口安裝應平整，位置準確。轉運部分應靈活，與風管連接應牢固。柔性短管安裝松緊適當，不得扭曲。

The detachable interfaces of pipes and accessories shall not be installed in walls and walkway floors. The embedded parts or expansion bolts of supports, hangers, and brackets should be positioned accurately, firmly, and reliably. The embedded parts should not be painted, and oil stains should be removed. The spacing between non insulated supports, hangers, and brackets should comply with the following design requirements. Horizontal installation: The diameter or major side length of the air duct is less than 40mm, and the spacing is<=4m; If it is greater than or equal to 400mm, the spacing≤ 3m. Vertical installation: spacing<=4m, but the fixed parts of each riser should be no less than 2. The insulation pipe should meet the design requirements. Supports, hangers, and brackets shall not be installed outside air vents, valves, or inspection doors. The hanger shall not be directly hung on the flange, and fixed points shall be set at appropriate locations to prevent swinging. Separate suspension brackets must be installed at the installation locations of fire dampers, electric dampers, and other components. The gasket thickness of the flange is 3– 5mm, plastic should not protrude into the pipe. Bolt connecting the flange. The nuts should be on the same side, and the material should be made according to the design requirements. The air duct should be installed horizontally, with a levelness of<=3/1000 and a total deviation of<=20mm. The air duct should be installed vertically, with a verticality of<=2/1000 and a total deviation of<=20mm. The air duct for civil air defense shall be sloped according to the requirements of civil air defense. The valve adjustment department of the air duct should be installed in a convenient location for operation, the valve plate should be inserted in the direction of the airflow, the installation position of the fire damper should be correct, and the fusible parts should be installed after the system is installed. The installation of various air vents should be flat and accurately positioned. The transfer part should be flexible and firmly connected to the air duct. The flexible short pipe should be installed with appropriate tightness and should not be twisted.

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