通常使用鍍鋅風管，不銹鋼管用于腐蝕性和非常潮濕的地方。當環境空氣濕度較高時，風道外壁應進行防腐防銹處理。輸送高溫高濕的風道內壁應噴涂磷化底漆或其他防腐涂料。當風道輸送高溫氣體或低溫空氣時，風道外壁應進行保溫（冷保）處理。

Galvanized air ducts are usually used, while stainless steel pipes are used in corrosive and particularly humid areas. When the ambient air humidity is high, the outer wall of the air duct should be treated with anti-corrosion and rust prevention. The inner wall of the air duct conveying high temperature and high humidity should be sprayed with phosphating primer or other anti-corrosion coatings. When the air duct transports high-temperature gas or low-temperature air, the outer wall of the air duct should be insulated (cold preserved).

輸送高溫氣體的風道的隔熱目的是防止管道中空氣的熱量損失（冬季出現在集中式空調系統中）。在輸送廢熱蒸汽或高溫氣體時，為了防止熱量傳遞到室內并使室溫升高，可以防止人再次接觸風管并燙傷。在夏季，當輸送氣體的溫度低于周圍環境的空氣露點溫度時，通風管道外壁會產生冷凝現象。中央空調系統的空氣管道會增加冷卻損失，冷凝水滴會污染天花板和墻壁地板。因此，還應進行冷卻和隔熱處理。

The insulation purpose of the air duct transporting high-temperature gas is to prevent heat loss of the air in the pipeline (which occurs in centralized air conditioning systems in winter). When transporting waste heat steam or high-temperature gas, in order to prevent heat from being transferred indoors and raise the room temperature, it is possible to prevent people from coming into contact with the air duct again and getting burned. In summer, when the temperature of the transported gas is lower than the dew point temperature of the surrounding air, condensation will occur on the outer wall of the ventilation duct. The air ducts of the central air conditioning system will increase cooling losses, and condensation droplets will contaminate the ceiling and walls and floors. Therefore, cooling and insulation treatment should also be carried out.

以上是通風管道防腐保溫的原因。只有防腐才能減少后期使用中的腐蝕，所以我們應該注意這些方面，并盡量保證在以后使用時更光滑，效果更好。

The above are the reasons for the anti-corrosion and insulation of ventilation ducts. Only anti-corrosion can reduce corrosion in later use, so we should pay attention to these aspects and try to ensure smoother and better results in future use.

沈陽通風管道

Shenyang ventilation duct

關于通風管道施工時安裝吊架有哪8項規定

What are the 8 regulations for installing hangers during ventilation duct construction

1.根據風機，空調機組，風扇板等設備的支架和吊架的設計要求，設置隔振器，濟南通風管道的其品種和規格應符合設計和產品技術文件的要求。

According to the design requirements of the brackets and hangers for equipment such as fans, air conditioning units, and fan boards, vibration isolators should be installed. The variety and specifications of Jinan ventilation ducts should meet the requirements of the design and product technical documents.

2.風道應垂直安裝，間距不超過4米。單根直管應至少有兩個固定點。

2. The air duct should be installed vertically with a spacing of no more than 4 meters. A single straight pipe should have at least two fixing points.

3.吊架的螺孔應加工，吊桿應筆直，線頭完整光滑。

3. The screw holes of the suspension bracket should be machined, the suspension rod should be straight, and the thread head should be complete and smooth.

4.對于長度超過20米的水平懸掛風道，在通風管道施工期間至少應設置一個防搖支架。

For horizontal suspended air ducts with a length exceeding 20 meters, at least one anti shake bracket should be installed during the construction of the ventilation duct.

5，支架和吊架不應設置在風口，閥門，檢查門和自動控制機構中，與風口或插頭連接的距離不應小于200mm。

5. Brackets and hangers should not be installed in air vents, valves, inspection doors, and automatic control mechanisms, and the distance connected to air vents or plugs should not be less than 200mm.

6，當水平懸掛主干管和干空氣管道長度超過20m時，應設置防止擺動的固定點，每個系統應不小于1。

When the length of the horizontally suspended main pipe and dry air pipeline exceeds 20m, fixed points to prevent swinging should be set up, and each system should not be less than 1.

7，蒸汽水管應按標準圖紙和規格及規格形式選擇適合的強度和剛度，濟南通風管道的直徑或長度超過2500㎜超寬，超重專用風管分支，吊架應在規定的設計。

7. Steam water pipes should be selected with appropriate strength and stiffness according to standard drawings, specifications, and forms of specifications. The diameter or length of Jinan ventilation pipes should exceed 2500mm for ultra wide, overweight specialized air duct branches, and hangers should be designed according to regulations.

8.安裝后，每個輔助支架和吊架的應力應均勻，無明顯變形。空氣管道或空調設備使用的可調隔振支架和吊架的拉伸或壓縮量應根據設計要求進行調整。

8. After installation, the stress on each auxiliary bracket and hanger should be uniform without significant deformation. The tension or compression of adjustable vibration isolation brackets and hangers used in air ducts or air conditioning equipment should be adjusted according to design requirements.

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