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積塵：空氣中的灰塵、顆粒物等會(huì)不斷在通風(fēng)管道內(nèi)沉積，隨著時(shí)間的推移，積塵量會(huì)逐漸增加。這不僅會(huì)影響通風(fēng)效果，降低空氣質(zhì)量，還可能成為細(xì)菌、霉菌等微生物滋生的溫床，對(duì)人體健康造成威脅。

Dust accumulation: Dust, particulate matter, etc. in the air will continuously deposit in the ventilation duct, and over time, the amount of dust accumulation will gradually increase. This not only affects ventilation effectiveness and reduces air quality, but may also become a breeding ground for bacteria, mold, and other microorganisms, posing a threat to human health.

滋生微生物：通風(fēng)管道內(nèi)相對(duì)潮濕且黑暗的環(huán)境適合微生物生長。長期積累的灰塵和適宜的溫濕度條件會(huì)促使細(xì)菌、霉菌、病毒等微生物大量繁殖。這些微生物可能會(huì)隨著通風(fēng)氣流傳播到室內(nèi)各個(gè)角落，引發(fā)呼吸道疾病、過敏反應(yīng)等健康問題。

Microbial growth: The relatively humid and dark environment inside ventilation ducts is suitable for microbial growth. Long term accumulation of dust and suitable temperature and humidity conditions can promote the proliferation of bacteria, molds, viruses, and other microorganisms. These microorganisms may spread to various corners of the room with ventilation airflow, causing health problems such as respiratory diseases and allergic reactions.

腐蝕：如果通風(fēng)管道所處環(huán)境存在腐蝕性氣體、水汽或濕度較高，管道材質(zhì)可能會(huì)發(fā)生腐蝕。尤其是金屬材質(zhì)的通風(fēng)管道，容易生銹、穿孔，影響管道的結(jié)構(gòu)強(qiáng)度和密封性，導(dǎo)致通風(fēng)效率下降，甚至可能出現(xiàn)漏風(fēng)現(xiàn)象。

Corrosion: If there are corrosive gases, water vapor, or high humidity in the environment where the ventilation duct is located, the material of the duct may corrode. Especially metal ventilation ducts are prone to rusting and perforation, which affects the structural strength and sealing of the ducts, leading to a decrease in ventilation efficiency and even the possibility of air leakage.

漏風(fēng)：通風(fēng)管道的連接部位可能會(huì)因長時(shí)間使用而出現(xiàn)松動(dòng)、密封件老化等問題，從而導(dǎo)致漏風(fēng)。此外，管道受到外力撞擊、磨損或腐蝕穿孔也會(huì)造成漏風(fēng)。漏風(fēng)會(huì)使通風(fēng)系統(tǒng)的能耗增加，影響通風(fēng)效果，無法滿足室內(nèi)環(huán)境的通風(fēng)需求。

Air leakage: The connection parts of ventilation ducts may become loose or the seals may age due to prolonged use, leading to air leakage. In addition, external impact, wear, corrosion, or perforation of pipelines can also cause air leakage. Air leakage can increase the energy consumption of the ventilation system, affect the ventilation effect, and fail to meet the ventilation needs of indoor environments.‘

堵塞：除了積塵外，通風(fēng)管道內(nèi)還可能會(huì)因異物進(jìn)入、管道內(nèi)的部件損壞脫落等原因造成堵塞。例如，在施工過程中不慎遺留的雜物、昆蟲或小動(dòng)物進(jìn)入管道后死亡形成的堵塞等。堵塞會(huì)阻礙空氣流通，使通風(fēng)系統(tǒng)的阻力增大，風(fēng)機(jī)負(fù)荷增加，甚至可能導(dǎo)致通風(fēng)系統(tǒng)無法正常運(yùn)行。

Blockage: In addition to dust accumulation, there may also be blockages in ventilation ducts due to foreign objects entering or components inside the ducts being damaged or detached. For example, blockages caused by debris, insects, or small animals that accidentally enter the pipeline during construction and die. Blockage can hinder air circulation, increase the resistance of the ventilation system, increase the load on the fan, and may even cause the ventilation system to malfunction.

保溫性能下降：對(duì)于有保溫層的通風(fēng)管道，隨著時(shí)間的推移，保溫材料可能會(huì)老化、破損或受潮，導(dǎo)致保溫性能降低。這會(huì)使通風(fēng)管道表面出現(xiàn)結(jié)露現(xiàn)象，不僅浪費(fèi)能源，還可能會(huì)損壞管道及周圍的建筑結(jié)構(gòu)，同時(shí)也會(huì)影響室內(nèi)的舒適度。

Decreased insulation performance: For ventilation ducts with insulation layers, over time, the insulation material may age, break, or become damp, leading to a decrease in insulation performance. This will cause condensation on the surface of the ventilation duct, which not only wastes energy but may also damage the duct and surrounding building structures, while also affecting indoor comfort.

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