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　　在濟(jì)南的建筑環(huán)境中，通風(fēng)管道作為室內(nèi)空氣調(diào)節(jié)系統(tǒng)的核心組件，其分類選擇與安裝質(zhì)量直接影響室內(nèi)空氣質(zhì)量與能源效率。從材質(zhì)特性到施工規(guī)范，每個環(huán)節(jié)都需結(jié)合地域氣候特征與使用需求進(jìn)行科學(xué)決策。本文將從技術(shù)角度系統(tǒng)解析通風(fēng)管道的分類體系及安裝要點(diǎn)。

　　In the building environment of Jinan, ventilation ducts are the core components of indoor air conditioning systems, and their classification, selection, and installation quality directly affect indoor air quality and energy efficiency. From material characteristics to construction standards, every step needs to be scientifically decided based on regional climate characteristics and usage requirements. This article will systematically analyze the classification system and installation points of ventilation ducts from a technical perspective.

　　一、通風(fēng)管道材質(zhì)分類與特性

　　1、 Classification and Characteristics of Ventilation Duct Materials

　　金屬類管道

　　Metal pipes

　　鍍鋅鐵皮風(fēng)管：采用0.5-1.2mm厚鍍鋅鋼板制作，某建材實(shí)驗(yàn)室的測試數(shù)據(jù)顯示，其耐腐蝕性能較普通冷軋鋼板提升3倍，適用于一般空調(diào)系統(tǒng)。在濟(jì)南夏季高濕環(huán)境下，需定期檢查鍍鋅層完整性。

　　Galvanized iron sheet air duct: made of 0.5-1.2mm thick galvanized steel plate. Test data from a building materials laboratory shows that its corrosion resistance is three times higher than that of ordinary cold-rolled steel plate, making it suitable for general air conditioning systems. In the high humidity environment of Jinan during summer, it is necessary to regularly check the integrity of the galvanized layer.

　　不銹鋼風(fēng)管：以304或316L不銹鋼為基材，某化工項(xiàng)目的實(shí)踐表明，在含氯離子環(huán)境中，316L不銹鋼點(diǎn)蝕速率低于0.01mm/年，適用于醫(yī)院、實(shí)驗(yàn)室等高潔凈度場所。

　　Stainless steel duct: Made of 304 or 316L stainless steel as the substrate, the practice of a certain chemical project has shown that in a chloride ion containing environment, the pitting corrosion rate of 316L stainless steel is less than 0.01mm/year, which is suitable for high cleanliness places such as hospitals and laboratories.

　　非金屬類管道

　　Non metallic pipelines

　　玻璃鋼風(fēng)管：通過玻璃纖維增強(qiáng)樹脂復(fù)合而成，某環(huán)保設(shè)備的檢測報(bào)告顯示，其耐酸堿性能達(dá)GB 50727《通風(fēng)管道技術(shù)規(guī)程》A級標(biāo)準(zhǔn)，適用于化工廠廢氣處理系統(tǒng)。

　　Fiberglass duct: made of glass fiber reinforced resin composite. According to the testing report of a certain environmental protection equipment, its acid and alkali resistance meets the A-level standard of GB 50727 "Technical Regulations for Ventilation Ducts" and is suitable for chemical plant waste gas treatment systems.

　　酚醛復(fù)合風(fēng)管：以酚醛泡沫為芯材，導(dǎo)熱系數(shù)低至0.022W/(m·K)，某節(jié)能建筑的實(shí)測數(shù)據(jù)顯示，較傳統(tǒng)鐵皮風(fēng)管節(jié)能，適用于低溫送風(fēng)系統(tǒng)。

　　Phenolic composite air duct: phenolic foam is used as the core material, and the thermal conductivity is as low as 0.022W/(m · K). The measured data of an energy-saving building shows that it is energy-saving compared with traditional iron sheet air duct, and is suitable for low-temperature air supply system.

　　新型復(fù)合風(fēng)管

　　New composite air duct

　　雙面彩鋼復(fù)合風(fēng)管：內(nèi)外層為彩鋼板，中間填充離心玻璃棉，某聲學(xué)實(shí)驗(yàn)室的測試表明，其計(jì)權(quán)隔聲量達(dá)28dB，兼具保溫與降噪功能，適用于影劇院等聲學(xué)要求高的場所。

　　Double sided color steel composite air duct: The inner and outer layers are made of color steel plates, and the middle is filled with centrifugal glass wool. Tests in an acoustic laboratory have shown that its weighted sound insulation reaches 28dB, and it has both insulation and noise reduction functions. It is suitable for places with high acoustic requirements such as cinemas and theaters.

　　柔性風(fēng)管：以玻璃絲布為基材，外覆鋁箔防潮層，某空調(diào)工程的案例顯示，其彎曲半徑可達(dá)管徑的0.5倍，適用于空間受限的吊頂區(qū)域。

　　Flexible air duct: made of glass fiber cloth as the substrate and covered with aluminum foil moisture-proof layer. A case study of an air conditioning project shows that its bending radius can reach 0.5 times the pipe diameter, making it suitable for ceiling areas with limited space.

　　二、通風(fēng)管道安裝技術(shù)要點(diǎn)

　　2、 Key points of ventilation duct installation technology

　　施工前準(zhǔn)備

　　Preparation before construction

　　BIM放樣：采用三維掃描技術(shù)獲取現(xiàn)場數(shù)據(jù)，某機(jī)電安裝項(xiàng)目的實(shí)踐表明，BIM放樣可使管線碰撞率降低。

　　BIM layout: Using 3D scanning technology to obtain on-site data, the practice of a certain electromechanical installation project has shown that BIM layout can reduce pipeline collision rates.

　　材料檢驗(yàn)：檢查風(fēng)管平整度，某質(zhì)檢規(guī)范要求，鍍鋅鋼板風(fēng)管對角線偏差應(yīng)控制在2mm以內(nèi)，法蘭螺栓孔間距誤差不超過1mm。

　　Material inspection: Check the flatness of the air duct. According to a certain quality inspection specification, the diagonal deviation of galvanized steel sheet air ducts should be controlled within 2mm, and the distance error between flange bolt holes should not exceed 1mm.

　　風(fēng)管連接工藝

　　Duct connection process

　　法蘭連接：角鋼法蘭風(fēng)管需采用鍍鋅螺栓，緊固力矩控制在4-5N·m。某安裝標(biāo)準(zhǔn)的測試數(shù)據(jù)顯示，螺栓間距超過150mm會導(dǎo)致漏風(fēng)量增加。

　　Flange connection: Galvanized bolts should be used for angle steel flange air ducts, with a tightening torque controlled at 4-5N · m. The test data of a certain installation standard shows that bolt spacing exceeding 150mm will lead to an increase in air leakage.

　　共板法蘭連接：適用于矩形風(fēng)管，需使用專用咬口機(jī)加工，某設(shè)備的運(yùn)行參數(shù)顯示，咬口寬度控制在8-10mm可確保連接強(qiáng)度。

　　Common flange connection: suitable for rectangular air ducts, requiring the use of a dedicated biting machine for processing. The operating parameters of a certain equipment display that the biting width is controlled at 8-10mm to ensure connection strength.

　　支吊架安裝

　　Installation of supports and hangers

　　間距規(guī)范：水平風(fēng)管支吊架間距按GB 50243《通風(fēng)與空調(diào)工程施工質(zhì)量驗(yàn)收規(guī)范》執(zhí)行，某設(shè)計(jì)院的計(jì)算表明，DN800風(fēng)管在保溫狀態(tài)下，最大允許間距為3m。

　　Spacing specification: The spacing between horizontal air duct supports and hangers shall be in accordance with GB 50243 "Code for Acceptance of Construction Quality of Ventilation and Air Conditioning Engineering". The calculation of a certain design institute shows that the maximum allowable spacing for DN800 air ducts in insulation state is 3m.

　　防晃支架：在風(fēng)管轉(zhuǎn)彎處及末端需設(shè)置防晃支架，某抗震設(shè)計(jì)的測試數(shù)據(jù)顯示，合理布置防晃支架可使地震作用下的位移量降低。

　　Anti sway bracket: Anti sway brackets need to be installed at the turning and end of the air duct. Test data from a certain seismic design shows that reasonable arrangement of anti sway brackets can reduce displacement under earthquake action.

　　密封處理

　　Sealing treatment

　　法蘭密封：采用8501阻燃密封膠條，某消防研究所的燃燒試驗(yàn)表明，該材料煙氣毒性指數(shù)低于15，符合安全要求。

　　Flange sealing: 8501 flame retardant sealing strip is used. The combustion test of a certain fire research institute shows that the smoke toxicity index of this material is less than 15, which meets the safety requirements.

　　接口密封：對于無法蘭連接風(fēng)管，需使用專用密封膠泥，某項(xiàng)目的實(shí)測漏風(fēng)量顯示，膠泥厚度控制在3-5mm時密封效果最佳。

　　Interface sealing: For air ducts that cannot be connected with a flange, specialized sealing adhesive is required. The measured air leakage rate of a certain project shows that the sealing effect is best when the thickness of the adhesive is controlled between 3-5mm.

　　三、濟(jì)南地域特性適配方案

　　3、 Jinan Regional Characteristics Adaptation Plan

　　夏季防結(jié)露措施

　　Summer anti condensation measures

　　在濟(jì)南夏季高濕環(huán)境下，需對風(fēng)管進(jìn)行保溫處理，某節(jié)能公司的設(shè)計(jì)方案顯示，采用25mm厚橡塑保溫材料，可使表面溫度高于露點(diǎn)溫度，有效防止結(jié)露。

　　In the high humidity environment of Jinan in summer, it is necessary to insulate the air ducts. The design plan of an energy-saving company shows that using 25mm thick rubber insulation material can make the surface temperature higher than the dew point temperature, effectively preventing condensation.

　　冬季防凍設(shè)計(jì)

　　Winter antifreeze design

　　對于新風(fēng)系統(tǒng)，需在風(fēng)管最低點(diǎn)設(shè)置排水閥，某暖通設(shè)計(jì)的實(shí)踐表明，排水閥間距控制在30m以內(nèi)可確保冷凝水順利排出。

　　For the fresh air system, a drainage valve needs to be installed at the lowest point of the air duct. The practice of a certain HVAC design shows that controlling the distance between drainage valves within 30m can ensure the smooth discharge of condensed water.

　　沙塵防護(hù)

　　Sand and dust protection

　　在春季沙塵季節(jié)，需在進(jìn)風(fēng)口設(shè)置初效過濾器，某空氣凈化設(shè)備的測試數(shù)據(jù)顯示，G4級過濾器對PM10的過濾效率達(dá)90%，可顯著改善室內(nèi)空氣質(zhì)量。

　　During the spring sandstorm season, it is necessary to install a primary filter at the air inlet. Test data from a certain air purification equipment shows that the G4 level filter has a filtration efficiency of 90% for PM10, which can significantly improve indoor air quality.

　　四、驗(yàn)收與維護(hù)標(biāo)準(zhǔn)

　　4、 Acceptance and maintenance standards

　　氣密性檢測

　　Airtightness testing

　　采用漏光法與漏風(fēng)量測試相結(jié)合，某檢測機(jī)構(gòu)的規(guī)范要求，低壓系統(tǒng)漏風(fēng)量應(yīng)小于0.105m?/(h·m?)，中壓系統(tǒng)小于0.031m?/(h·m?)。

　　The combination of light leakage method and air leakage testing is adopted. According to the specifications of a certain testing institution, the air leakage of low-voltage system should be less than 0.105 m ?/(h · m ?), and the air leakage of medium voltage system should be less than 0.031 m ?/(h · m ?).

　　運(yùn)行振動測試

　　Run vibration test

　　在風(fēng)機(jī)啟動狀態(tài)下，使用振動分析儀檢測風(fēng)管振動，某振動控制的標(biāo)準(zhǔn)顯示，振動速度有效值應(yīng)控制在4.5mm/s以內(nèi)。

　　When the fan is in the starting state, use a vibration analyzer to detect the vibration of the air duct. According to the standard display of a certain vibration control, the effective value of the vibration speed should be controlled within 4.5mm/s.

　　定期維護(hù)周期

　　Regular maintenance cycle

　　建議每半年進(jìn)行一次全面檢查，重點(diǎn)清理過濾器與檢查密封膠條。某運(yùn)維公司的數(shù)據(jù)表明，定期維護(hù)可使風(fēng)管系統(tǒng)使用壽命延長。

　　It is recommended to conduct a comprehensive inspection every six months, with a focus on cleaning the filters and checking the sealing strips. The data from a certain operation and maintenance company shows that regular maintenance can extend the service life of the air duct system.

　　濟(jì)南通風(fēng)管道的選型與安裝需建立材質(zhì)特性、施工工藝、地域氣候的三維評估體系。通過科學(xué)分類選擇、精細(xì)化施工管理、智能化運(yùn)維監(jiān)測，可確保通風(fēng)系統(tǒng)高效穩(wěn)定運(yùn)行。隨著裝配式建造技術(shù)的發(fā)展，如預(yù)制化風(fēng)管、智能風(fēng)閥等新技術(shù)的應(yīng)用，通風(fēng)管道工程正向綠色化、智慧化方向演進(jìn)，這對提升建筑環(huán)境品質(zhì)具有重要意義。

　　The selection and installation of ventilation ducts in Jinan require the establishment of a three-dimensional evaluation system based on material characteristics, construction techniques, and regional climate. Through scientific classification selection, refined construction management, and intelligent operation and maintenance monitoring, the ventilation system can ensure efficient and stable operation. With the development of prefabricated construction technology, such as the application of new technologies such as prefabricated air ducts and intelligent air valves, ventilation duct engineering is evolving towards green and intelligent directions, which is of great significance for improving the quality of the building environment.

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