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1. The bonding density of insulation nails, the insulation nails of rectangular air duct and equipment shall be evenly arranged, the number of which shall not be less than 24 per square meter, the bottom surface of which shall not be less than 15 per square meter, the distance between each square meter and the first line from the edge of insulation nails or insulation materials of air duct shall not be less than 120mm. After sticking nails for 24 hours, gently pull the insulation nails. When it does not loose and fall off, the insulation material can be laid.

2、風(fēng)管與設(shè)備的連接，易于生產(chǎn)的冷凝液的位置，須絕緣良好，緊密和無縫。

2. The connection between the air duct and the equipment and the position of condensate easy to produce must be well insulated, tight and seamless.

3、保溫材料的材料、規(guī)格和耐火性能須符合設(shè)計和防火要求，須檢驗材料合格證。

3. The material, specification and fire resistance performance of thermal insulation materials shall meet the design and fire protection requirements, and the material certificate shall be inspected.

4、風(fēng)閥在保溫后不會妨礙操作，啟閉標記清晰清晰。

4. The air valve will not hinder the operation after heat preservation, and the opening and closing marks are clear.

5、空氣管道做絕緣漏泄試驗，低風(fēng)系統(tǒng)每10米以內(nèi)接縫漏水2點，而100米縫平均不到8合格。

5. The insulation leakage test of the air pipeline shows that there are 2 points of leakage in the joints of the low air system within 10 meters, and the average leakage in the joints of 100 meters is less than 8 points.

6、玻璃氈氈應(yīng)緊密地附著在風(fēng)管表面，緊固和放松。不銹鋼螺旋風(fēng)管玻璃布保護層應(yīng)適中，搭接寬度均勻，平整美觀。

6. The glass felt shall be tightly attached to the surface of the air duct, and shall be tightened and loosened. The glass cloth protective layer of stainless steel spiral duct should be moderate, the overlapping width should be uniform, flat and beautiful.

保溫：保溫釘粘貼60mm長的鋁制保溫釘，保溫釘粘接應(yīng)排除在粘接前鋼板表面的油污和灰塵，使用前應(yīng)確保粘接可靠性實驗?zāi)z；將保溫釘粘接000表面用膠水粘接，堅持一分鐘干微粘上后。

Heat preservation: the heat preservation nail shall be pasted with 60mm long aluminum heat preservation nail. The oil stain and dust on the steel plate surface before bonding shall be eliminated, and the bonding reliability test glue shall be ensured before use; Glue the heat preservation nail to the surface for one minute.

切切：當風(fēng)管處于材料下時，應(yīng)按施工圖所要求的尺寸加工。為了配合法蘭，避免空氣管與法蘭之間的尺寸誤差，很難安裝空氣管和法蘭。管子的尺寸是根據(jù)外徑或外徑而定的，厚度是根據(jù)規(guī)格和設(shè)計要求而定的。

Cutting: when the air duct is under the material, it should be processed according to the size required by the construction drawing. In order to fit the flange and avoid the dimensional error between the air pipe and flange, it is difficult to install the air pipe and flange. The size of the pipe is determined according to the outer diameter or outer diameter, and the thickness is determined according to the specification and design requirements.

空氣管保溫：接口用鋁箔膠帶密封，接口上的油污和灰塵在密封前應(yīng)清洗干凈，以免發(fā)生故障。膠帶受力均勻、適中，帶牢固地粘在鋁箔玻璃棉氈的表面，無開裂和脫落。

Air pipe insulation: the interface is sealed with aluminum foil tape, and the oil and dust on the interface should be cleaned before sealing to avoid failure. The stress of the tape is even and moderate, and the tape is firmly adhered to the surface of the aluminum foil glass wool felt without cracking and falling off.

咬口：鍍鋅鋼管采用風(fēng)釘扣、按扣，側(cè)板和上下板在咬后相互咬邊。

Undercut: galvanized steel pipe adopts wind nailing and snap fastener, and side plate and upper and lower plate undercut each other after undercutting.