鍍鋅鐵皮風管的防火性能有哪些？

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鍍鋅風管的鋅鍍層經(jīng)鈍化處理、染色或涂覆護光劑后，能明顯提高其防護性和裝飾性。而且鍍鋅風管的防火功能首要體現(xiàn)在，它具有不燃性，但是有一點需求留意的是，它的保溫層是否燃燒要依材質(zhì)而定。鍍鋅風管廠家的防火性能能夠體現(xiàn)在的地方有很多，同樣在運用鍍鋅風管時沒有好的消聲功能，所以咱們要給風管加上消聲器，而且它的導熱系數(shù)偏大，所以沒有保溫功能，所以咱們在運用時還需求另加包保溫層，對于運用環(huán)境也有著要求。鍍鋅鐵皮風管正確吊裝的技術(shù)，然后在依據(jù)圖紙鐵皮風管各體系的分布，依照制造好的鐵皮風管編號進行擺放、組合，核對鍍鋅鐵皮風管尺度，所在軸線方位契合圖紙后，方可吊裝。鍍鋅鐵皮風管加固措施：矩形風管邊長≥630mm和保溫風管邊長≥800mm,管段長度在1.2m以上必須采用加強筋或其它加固。

The zinc coating of galvanized air ducts can significantly improve their protective and decorative properties after passivation, dyeing, or coating with protective agents. Moreover, the fireproof function of galvanized air ducts is primarily reflected in their non combustible properties. However, it is important to note that whether the insulation layer burns depends on the material used. The fire resistance performance of galvanized air duct manufacturers can be reflected in many aspects. Similarly, when using galvanized air ducts, there is no good noise reduction function. Therefore, we need to add a muffler to the air duct, and its thermal conductivity is too high, so there is no insulation function. Therefore, we also need to add an additional insulation layer when using it, which has requirements for the application environment. The correct lifting technique for galvanized iron sheet air ducts is to place and combine them according to the distribution of each system of the galvanized iron sheet air duct according to the drawings and the manufactured iron sheet air duct number. The dimensions of the galvanized iron sheet air duct should be checked and the axis orientation should match the drawings before lifting. Reinforcement measures for galvanized iron sheet air ducts: rectangular air ducts with a side length of ≥ 630mm and insulated air ducts with a side length of ≥ 800mm must be reinforced with reinforcing bars or other reinforcement measures when the length of the duct section is greater than 1.2m.

防止鍍鋅風管震動和噪音的方法。防止震動和噪音是安裝全過程中的關(guān)鍵步驟。安裝全過程中，鍍鋅風管的震動和噪音防止主要從以下幾個方面入手:

Methods to prevent vibration and noise from galvanized air ducts. Preventing vibration and noise is a key step in the entire installation process. During the entire installation process, the vibration and noise prevention of galvanized air ducts mainly starts from the following aspects:

①風扇安裝時，應根據(jù)設計要求或施工規(guī)范設置減振裝置。

① When installing fans, vibration reduction devices should be installed according to design requirements or construction specifications.

②風機和鍍鋅風管的聯(lián)接采用軟管聯(lián)接，風機吸入口處的軟管安裝應適度松緊，避免因軟接過松而降低進出風口面積而產(chǎn)生噪音和震動。防止鍍鋅風管震動和噪音的方法。

② The connection between the fan and the galvanized air duct adopts a flexible hose connection, and the installation of the flexible hose at the fan suction port should be moderately loose to avoid noise and vibration caused by the reduction of the inlet and outlet area due to loose soft connections. Methods to prevent vibration and noise from galvanized air ducts.

③鍍鋅風管制造、安裝和與部件聯(lián)接，聯(lián)接嚴密，無漏風現(xiàn)象，避免漏風噪音。

③ Galvanized air duct manufacturing, installation, and connection with components, tightly connected, without air leakage, to avoid air leakage noise.

④為了防止鍍鋅風管震動，在各系統(tǒng)鍍鋅風管的轉(zhuǎn)彎處，與通風機和風口的連接處設置固定支架。鍍鋅風管漏風量測試鍍鋅風管安裝后，需要進行漏風量測試。根據(jù)規(guī)范，鍍鋅風管的漏風量測試采用漏光法定性和漏風量測試定量測試相結(jié)合的方式，適用于中低壓系統(tǒng)的嚴密性測試；漏風量測試適用于中壓系統(tǒng)的抽檢和高壓系統(tǒng)的全部檢測。防止鍍鋅風管震動和噪音的方法。

④ In order to prevent vibration of the galvanized air duct, fixed brackets are installed at the corners of the galvanized air duct in each system, and at the connection between the ventilation fan and the air outlet. After the installation of galvanized air duct, air leakage testing is required. According to the regulations, the leakage test of galvanized air ducts adopts a combination of light leak detection and quantitative leakage test, which is suitable for the tightness test of medium and low voltage systems; The air leakage test is applicable to the sampling inspection of medium voltage systems and all inspections of high voltage systems. Methods to prevent vibration and noise from galvanized air ducts.

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