I. process requirements

1、裝置風(fēng)管前，應(yīng)將圖紙與施工現(xiàn)場(chǎng)進(jìn)行核對(duì)，查看能否按規(guī)劃的標(biāo)高和方位進(jìn)行裝置；

1. Before installing the air duct, the drawings should be checked with the construction site to see if the installation can be carried out according to the planned elevation and orientation.

2、運(yùn)用紅外線定位放線，保證風(fēng)管的間隔及直線度，并按風(fēng)管的中心線，找出吊桿裝置方位， 進(jìn)行支吊架裝置；

2. Use infrared positioning and setting-out to ensure the air pipe spacing and straightness, and according to the central line of the air pipe, find out the suspender device orientation, support and hanger device;

3、風(fēng)管體系的各部分尺度和視點(diǎn)承認(rèn)準(zhǔn)確無(wú)誤后，開端組對(duì)裝置，風(fēng)管的銜接應(yīng)平直、不歪曲，且銜接法蘭的螺母應(yīng)在同一側(cè)；

3. After the scale and viewpoint of each part of the air duct system are admitted to be accurate, the connection of the air duct should be straight and not distorted, and the nut of the connecting flange should be on the same side.

4、風(fēng)管與風(fēng)管法蘭間的墊片選用厚3mm及以上的耐熱橡膠板，墊片不該凸入管內(nèi)，亦不宜杰出法蘭，且墊片中不該含有石棉及其它有害成分，且應(yīng)耐油耐潮耐酸堿腐蝕；

4. The gasket between the air duct and the air duct flange should be heat-resistant rubber plate with thickness of 3 mm or more. The gasket should not be protruded into the pipe or outstanding flange, and the gasket should not contain asbestos and other harmful components, and should be resistant to oil, moisture, acid and alkali corrosion.

5、風(fēng)管裝置時(shí)，有必要堅(jiān)持風(fēng)管中心線的水平，裝置一段風(fēng)管后運(yùn)用水平尺丈量水平；風(fēng)管長(zhǎng)度超越20m時(shí)，有必要設(shè)置防晃支架，且每個(gè)體系不少于一副；

5. It is necessary to insist on the level of the central line of the air duct when installing the air duct, and measure the level with a horizontal ruler after installing the first section of the air duct.

6、在風(fēng)管穿過(guò)需求關(guān)閉的防火、防爆的墻體或樓板時(shí)，應(yīng)設(shè)預(yù)埋管或防護(hù)套管，其鋼板厚度為2mm。風(fēng)管與防護(hù)套管之間，應(yīng)用不燃且對(duì)人體無(wú)損害的柔性資料封堵；

6. When the duct passes through the fire-proof or explosion-proof wall or floor that needs to be closed, it should be equipped with embedded pipes or protective sleeves with a steel plate thickness of 2 mm. Between the wind pipe and the protective sleeve, the flammable and flexible data without damage to the human body are used for plugging.

7、各類風(fēng)管部件及操作組織的裝置，先查看閥門外形及操作組織是否完好，查看動(dòng)作的靈活性，承認(rèn)閥門各方面正常之后再進(jìn)行裝置裝置方向、方位應(yīng)正確，在閥門操作組織一側(cè)應(yīng)少有350mm的凈空間，以便操作、檢修；防火分區(qū)隔墻兩邊的防火閥，間隔墻體外表不該大于200mm；

7. All kinds of air duct components and operation organization of the device, check the valve shape and operation organization is intact, check the flexibility of action, recognize the normal valve after all aspects of the device direction and orientation should be correct, in the valve operation organization side should have at least 350 mm of clean space for operation, inspection and repair; The fireproof valve on both sides of partition wall should not be larger than 200mm on the surface of the partition wall.

8、防火排煙風(fēng)管的支吊架有必要獨(dú)自設(shè)置，支管、管道式消聲器、消聲器彎頭、防火閥有必要獨(dú)自設(shè)置支、吊架；

8. It is necessary to install the support and hanger of the fire-proof smoke exhaust duct by itself, and the support and hanger of the branch, pipe muffler, muffler elbow and fire-proof valve by themselves.

9、風(fēng)管裝置結(jié)束后，應(yīng)按體系壓力等級(jí)進(jìn)行嚴(yán)密性查驗(yàn)。

9, after the end of the wind pipe device, we should tighten the inspection according to the pressure level of the system.

二.質(zhì)量操控關(guān)鍵

Two. Key to quality control

1、風(fēng)管內(nèi)禁止有雜物或其它管線穿越，并做好清潔和維護(hù)作業(yè)；

1. No debris or other pipeline crossing is allowed in the wind pipe, and cleaning and maintenance work should be done well.

2、支吊架下沿和外緣與接觸網(wǎng)帶電體(含承力索,下饋線等)間隔有必要堅(jiān)持大于230mm,并應(yīng)嚴(yán)厲依照限界要求施行；

2. It is necessary to insist that the safety interval between the lower edge and outer edge of the support hanger and the charged body of the catenary (including the load-bearing cable, the lower feeder line, etc.) be greater than 230mm, and it should be strictly carried out in accordance with the requirements of the limit.

3、銜接螺栓應(yīng)為鍍鋅螺栓，一起有必要裝備相應(yīng)的平墊、彈墊和螺母；

3, the connecting bolts should be galvanized bolts, and it is necessary to equip corresponding flat pads, elastic pads and nuts.

4、風(fēng)管法蘭墊片的作業(yè)溫度不小于70℃；關(guān)于排煙風(fēng)管法蘭墊片的作業(yè)溫度要求不小于250℃；

4. The operating temperature of the air duct flange gasket shall not be less than 70, and the operating temperature of the air duct flange gasket shall not be less than 250.

5、風(fēng)管裝置的水平度答應(yīng)誤差每米不該大于3mm，總誤差不該大于20mm；垂直裝置垂直度的答應(yīng)誤差為每米不超越2mm，總誤差不該大于 20mm；

5. The allowable horizontal error of the air duct device should not be greater than 3 mm per meter, the total error should not be greater than 20 mm; the allowable vertical error of the vertical device should not exceed 2 mm per meter, the total error should not be greater than 20 mm;

6、風(fēng)管在穿過(guò)墻體或樓板處不得設(shè)置接口，風(fēng)管沿墻體或樓板裝置時(shí)，間隔墻面、樓板的間隔應(yīng)大于150mm；

6. The air duct shall not be provided with an interface at the place where it passes through the wall or floor. When the air duct is installed along the wall or floor, the interval between the wall and floor shall be greater than 150 mm.

7、風(fēng)閥的電動(dòng)執(zhí)行組織裝置有必要可靠固定，禁止隨意放置在風(fēng)管上；

7. The electric actuating organization device of the wind valve must be reliable and fixed, and it is forbidden to be placed on the wind pipe at will.

8、手動(dòng)密閉閥裝置，閥門上標(biāo)志的箭頭方向有必要與受沖擊波方向共同；

8. Manual closed valve device. The arrow direction on the valve must be in common with the direction of the shock wave.

9、現(xiàn)場(chǎng)風(fēng)管接口的裝備，不得縮小其有用截面；

9, the equipment of on-site wind pipe interface shall not reduce its useful cross section.

10、、空調(diào)風(fēng)管支吊架應(yīng)設(shè)不燃絕熱墊防止產(chǎn)生冷橋，絕熱墊應(yīng)在支吊架制造時(shí)錨固在橫擔(dān)上；

10. Air-conditioning duct support and hanger should be equipped with non-combustible insulation cushion to prevent the cold bridge, insulation cushion should be anchored on the cross-bearing when the support and hanger are manufactured.

11、對(duì)體系風(fēng)管的檢測(cè)，宜選用分段檢測(cè)、匯總剖析的辦法。在嚴(yán)厲裝置質(zhì)量管理的基礎(chǔ)上，體系風(fēng)管的檢測(cè)以總管和干管為主。當(dāng)選用漏光法檢測(cè)體系的嚴(yán)密性時(shí)，低壓體系風(fēng)管以每 10m 接縫，漏光點(diǎn)不大于 2 處，且100m 接縫均勻不大于 16處為合格；中壓體系風(fēng)管每 10m接縫，漏光點(diǎn)不大于 1 處，且 100m 接縫均勻不大于 8 處為合格。

11, for the detection of system air duct, we should choose the method of sectional detection and summary analysis. On the basis of strict quality control, the detection of system duct is mainly composed of main pipe and dry pipe. When the tightness of the system is checked by leak light method, the air duct of low pressure system is qualified with every 10 m joint, no more than 2 leak points, and no more than 16 100 m joints; the air duct of medium pressure system is qualified with every 10 m joint, no more than 1 leak point, and no more than 8 100 m joints.

三.制品維護(hù)措施

Three. Product maintenance measures

1、風(fēng)管轉(zhuǎn)移裝卸應(yīng)輕拿輕放，不得在地面上拖拽，并防止磕碰，摔絆；不得損壞法蘭鍍鋅層，如有劃傷應(yīng)補(bǔ)漆完好；

1. Air pipes should be handled lightly, not dragged on the ground, and prevent knocking, tripping; not damage the galvanized flange coating, if scratched, should be repaired in good condition;

2、風(fēng)管吊裝過(guò)程中，兩頭未銜接處有必要用塑料薄膜封住，風(fēng)管上風(fēng)口裝置前相同需用塑料薄膜封住，透明膠帶粘貼好，以防塵埃進(jìn)入；

2. In the process of hoisting air duct, it is necessary to use plastic film to seal the non-junction between the two ends. The same plastic film should be used to seal the air duct outlet before the installation. Transparent tape should be pasted well to prevent dust from entering.

3、關(guān)于穿越設(shè)備管理用房風(fēng)管，穿墻部位距墻500mm以內(nèi)有必要用塑料薄膜做好維護(hù)，以防土建施工單位灰料污染風(fēng)管；

3. It is necessary to use plastic film to maintain the air duct of the room for the management of crossing equipment within 500 mm from the wall so as to prevent the air duct from being polluted by ash materials of civil construction units.

4、裝置好的風(fēng)管上面禁止堆放雜物或站在上面施工。

4, a good wind pipe is not allowed to pile up debris or stand on it.

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