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　　通風(fēng)管道是山東各類建筑中空氣流通的重要通道，長(zhǎng)期使用后，管道內(nèi)部會(huì)積累灰塵、油污甚至滋生微生物，不僅影響通風(fēng)效率，還可能對(duì)室內(nèi)空氣質(zhì)量造成影響。尤其山東氣候四季分明，冬季供暖期管道內(nèi)易凝結(jié)水汽，加速污垢堆積，因此掌握科學(xué)的清理方法十分必要。

　　Ventilation ducts are important channels for air circulation in various buildings in Shandong. After long-term use, dust, oil stains, and even microorganisms may accumulate inside the ducts, which not only affects ventilation efficiency but may also have an impact on indoor air quality. Especially in Shandong, the climate has distinct four seasons, and during the winter heating season, water vapor is prone to condense in the pipes, accelerating the accumulation of dirt. Therefore, it is necessary to master scientific cleaning methods.

　　清理前的準(zhǔn)備工作不可或缺。首先需關(guān)閉通風(fēng)系統(tǒng)電源，確保操作安全。然后根據(jù)管道的安裝位置和規(guī)格，準(zhǔn)備合適的工具，如長(zhǎng)度可調(diào)節(jié)的管道刷、高壓吹風(fēng)機(jī)、吸塵器、內(nèi)窺鏡等。對(duì)于吊頂內(nèi)或墻體中的隱蔽管道，可通過(guò)檢修口進(jìn)入，利用內(nèi)窺鏡觀察內(nèi)部污垢分布情況，確定清理重點(diǎn)區(qū)域。同時(shí)，在管道出風(fēng)口和回風(fēng)口處鋪設(shè)防塵布，防止清理過(guò)程中灰塵擴(kuò)散到室內(nèi)環(huán)境。若管道內(nèi)油污較多（如餐飲場(chǎng)所的通風(fēng)管道），還需準(zhǔn)備中性清潔劑和熱水，避免使用腐蝕性強(qiáng)的化學(xué)藥劑損傷管道材質(zhì)。

　　Preparation before cleaning is essential. Firstly, it is necessary to turn off the power supply of the ventilation system to ensure safe operation. Then, according to the installation position and specifications of the pipeline, prepare suitable tools such as adjustable length pipeline brushes, high-pressure blowers, vacuum cleaners, endoscopes, etc. For concealed pipes inside the ceiling or walls, they can be accessed through inspection ports and the distribution of internal dirt can be observed using an endoscope to determine the key areas for cleaning. At the same time, dust-proof cloth should be laid at the outlet and return outlet of the pipeline to prevent dust from spreading into the indoor environment during the cleaning process. If there is a lot of oil pollution in the pipeline (such as ventilation ducts in restaurants), neutral cleaning agents and hot water should be prepared to avoid using highly corrosive chemicals that can damage the pipeline material.

　　針對(duì)不同污垢類型，需采用對(duì)應(yīng)的清理方式。對(duì)于干燥的灰塵和顆粒物，可先用高壓吹風(fēng)機(jī)從管道一端向另一端吹掃，將浮塵集中到預(yù)設(shè)的收集口，再用吸塵器將灰塵徹底吸除。對(duì)于管道內(nèi)壁附著的頑固塵垢，可使用帶有軟毛刷的延長(zhǎng)桿進(jìn)行反復(fù)擦拭，注意動(dòng)作輕柔，避免毛刷脫落堵塞管道。若管道內(nèi)存在油污，需先用稀釋后的中性清潔劑噴灑在油污處，靜置 10-15 分鐘使其軟化，再用沾有熱水的抹布擦拭，最后用清水沖洗干凈，并用干布吸干水分，防止殘留水分在管道內(nèi)滋生霉菌。

　　Corresponding cleaning methods should be adopted for different types of dirt. For dry dust and particulate matter, you can first use a high-pressure blower to blow from one end of the pipeline to the other, collect the floating dust at the preset collection port, and then use a vacuum cleaner to thoroughly remove the dust. For stubborn dirt adhered to the inner wall of the pipeline, an extension rod with a soft bristled brush can be used for repeated wiping, paying attention to gentle movement to avoid the brush falling off and blocking the pipeline. If there is oil contamination in the pipeline, it is necessary to first spray diluted neutral cleaner on the oil contaminated area, let it sit for 10-15 minutes to soften it, then wipe it with a cloth dipped in hot water, and finally rinse it with clean water and absorb the water with a dry cloth to prevent residual water from breeding mold in the pipeline.

　　對(duì)于較長(zhǎng)的通風(fēng)管道，可采用分段清理的方式。先將管道按長(zhǎng)度劃分成若干段，每段之間用擋板隔離，避免清理時(shí)污垢擴(kuò)散到其他區(qū)域。從距離出風(fēng)口最近的一段開(kāi)始，逐步向深處推進(jìn)，確保每段管道都清理徹底。彎道和接頭處是污垢容易堆積的部位，需用專用的彎道刷反復(fù)清理，確保無(wú)死角。清理過(guò)程中，可通過(guò)內(nèi)窺鏡實(shí)時(shí)檢查清理效果，直至管道內(nèi)壁無(wú)明顯污垢附著。

　　For longer ventilation ducts, segmented cleaning can be used. First, divide the pipeline into several sections according to length, and isolate each section with a baffle to prevent dirt from spreading to other areas during cleaning. Starting from the section closest to the air outlet, gradually push deeper to ensure that each section of the pipeline is thoroughly cleaned. Curves and joints are areas where dirt is prone to accumulate, and they need to be cleaned repeatedly with a specialized curve brush to ensure no dead corners. During the cleaning process, the cleaning effect can be checked in real time through an endoscope until there is no obvious dirt adhering to the inner wall of the pipeline.

　　清理后的維護(hù)措施能延長(zhǎng)管道潔凈周期。清理完成后，需檢查管道連接處的密封性，更換老化的密封墊，防止外界灰塵再次進(jìn)入。對(duì)于餐飲場(chǎng)所等油污產(chǎn)生較多的環(huán)境，建議在通風(fēng)口安裝濾網(wǎng)，并定期清洗或更換濾網(wǎng)，減少油污進(jìn)入管道的量。在山東潮濕的夏季，可適當(dāng)增加通風(fēng)系統(tǒng)的運(yùn)行時(shí)間，降低管道內(nèi)濕度，抑制微生物滋生。此外，建議每年至少進(jìn)行一次全面清理，在冬季供暖前和夏季多雨期前各進(jìn)行一次簡(jiǎn)易檢查，及時(shí)處理輕微的污垢堆積。

　　The maintenance measures after cleaning can extend the pipeline cleaning cycle. After cleaning, it is necessary to check the sealing of the pipeline connection and replace the aging sealing gasket to prevent external dust from entering again. For environments with high levels of oil pollution, such as dining establishments, it is recommended to install filters at ventilation openings and regularly clean or replace them to reduce the amount of oil entering pipelines. In the humid summer of Shandong, the operation time of the ventilation system can be appropriately increased to reduce the humidity inside the pipeline and inhibit the growth of microorganisms. In addition, it is recommended to conduct a comprehensive cleaning at least once a year, with a simple inspection before winter heating and before the rainy season in summer, to promptly deal with minor dirt accumulation.

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