亚洲精品鲁一鲁一区二区三区-最爽无遮挡行房视频-强壮的公次次弄得我高潮A片日本-精品人妻无码一区二区三区换脸-中文字幕亚韩-亚洲国产精品一区二区第一页-丰满岳乱妇一区二区三区-大陆极品少妇内射AAAAAA-国产乱人伦AV麻豆网-AV国産精品毛片一区二区三区-午夜精品视频在线无码-免费精品一区二区三区A片在线-在线天堂无限次观看,亚洲日韩无码一区二区,中文字幕乱人伦视频在线,亚洲欧美熟妇综合久久久久久,少妇无码一区二区三区免费久久,欧美黑人一级片在线观看,久久久精品无码一区三区,国产视频在线观看蜜芽,大香蕉五月婷婷精品视频 ,久草精品在线,国产无码在线播放一区二区,囯产无码交换大片在线播放,八戒八戒在线高清观看视频 ,娇妻被又粗又长又猛玩,国产曰肥老太婆无遮挡,国产剧情黄色,国产成年无码久久久久毛片資訊,大香蕉太香蕉成人现现,逼逼爱爱爱无码免费观看,亚州色图欧美图片自偷自拍,碰碰视频麻豆,午夜一本,一起射综合影院,黑人干熟女,欧洲高清转码区一二区 ,国产高清视频色拍,粉嫩无码小泬无套在线观看,大香蕉在线网站,成人做爰理论片,成人漫,9l视频自拍九色9l成人

　　（1）風管安裝前，應先對其安裝部位進行測量放線，確定管道中心線位置。

　　(1) Before installing the air duct, the installation position should be measured and laid out to determine the centerline position of the pipeline.

　　（2）支吊架不應設置在風口、閥門、檢查口及自控機構操作部位，且距風口不應小于200mm。（3）材料應具有出廠合格證、質量證明書及產品清單，風管成品不得有變形、扭曲、開裂、孔洞，法蘭脫落，法蘭開焊、漏鉚、漏打螺栓眼等缺陷。（4）根據施工現場情況，風管安裝通常在地面連成一定的長度，然后采用吊裝的方法就位，一般安裝順序是先干管后支管。1）組合連接：將各段加工好的風管，按施工圖進行排列，為連接做好準備，風管連接應用廣泛的方式是法蘭連接。①法蘭連接時，按設計要求放置墊料，法蘭墊料不能擠入或凸入管內，否則會增大流動阻力，增加管內積塵。

　　(2) Support and hanger brackets should not be installed at air vents, valves, inspection ports, and operating parts of automatic control mechanisms, and should not be less than 200mm away from the air vents. (3) Materials should have factory certificates, quality certificates, and product lists. Finished air ducts should not have defects such as deformation, distortion, cracking, holes, flange detachment, flange welding, missing riveting, missing bolt holes, etc. (4) According to the construction site conditions, the installation of air ducts is usually connected to a certain length on the ground, and then lifted into place. The general installation sequence is from the main pipe to the branch pipe. 1) Combination connection: Arrange the processed air ducts according to the construction drawing to prepare for connection. The widely used method for air duct connection is flange connection. ① When connecting flanges, place the gasket according to the design requirements. The flange gasket should not be squeezed or protruding into the pipe, otherwise it will increase the flow resistance and dust accumulation inside the pipe.

　　②把兩個法蘭先對正，穿上幾條螺栓并戴上螺母，暫時不要上緊，然后用尖沖塞進穿不上螺栓的螺孔中，把兩個螺孔撬正，直到所有螺栓都穿上后，再把螺栓擰緊。③為了避免螺栓滑扣，緊螺栓時應按十字交叉逐步均勻地擰緊，連接好的風管，應以兩端法蘭為準，拉線檢查風管連接是否平直。

　　② Align the two flanges first, thread a few bolts and nuts, do not tighten temporarily, then use a pointed punch to insert them into the screw holes where the bolts cannot be threaded, pry the two screw holes straight until all bolts are threaded, and then tighten the bolts. ③ In order to avoid bolt slippage, the bolts should be tightened gradually and evenly in a cross pattern. The connected air duct should be checked for straightness by pulling a line based on the flanges at both ends.

　　2）風管安裝：有接長吊裝法和分節安裝法。

　　2) Installation of air ducts: There are two methods: extension lifting method and segmented installation method.

　　風管接長吊裝：是將在地面上連接好的風管，一般可接長至10～20m左右，用倒鏈或滑輪將風管升至吊架上的方法。風管吊裝步驟：①首先應根據現場具體情況，在梁柱上選擇兩個可靠的吊點，然后掛好倒鏈或滑輪。②用麻繩將風管捆綁結實。塑料風管如需整體吊裝時，繩索不得直接捆綁在風管上，應用長木板托住風管的底部，四周應有軟性材料做墊層，方可起吊。③起吊時，當風管離地200～300mm時，應停止起吊，仔細檢查倒鏈式滑輪受力點和捆綁風管的繩索，繩扣是否牢靠，風管的重心是否正確，沒問題后，再繼續起吊。④風管放在支吊架后，將所有托盤和吊桿連接好，確認風管穩固好，才可以解開繩扣。

　　Duct extension and hoisting: It is a method of lifting air ducts that have been connected on the ground, usually extending them to about 10-20m, onto a hanger using a chain or pulley. Steps for lifting air ducts: Firstly, two reliable lifting points should be selected on the beam and column according to the specific situation on site, and then the reverse chain or pulley should be hung. ② Tie the air duct firmly with hemp rope. When plastic ducts need to be lifted as a whole, ropes should not be directly tied to the ducts. Long wooden boards should be used to support the bottom of the ducts, and soft materials should be used as a cushion layer around them before lifting. ③ When lifting, when the air duct is 200-300mm off the ground, the lifting should be stopped, and the force point of the reverse chain pulley and the rope binding the air duct should be carefully checked to ensure that the rope buckle is secure and the center of gravity of the air duct is correct. After there are no problems, the lifting can continue. ④ After placing the air duct on the support hanger, connect all trays and hangers, and confirm that the air duct is stable before unfastening the rope buckle.

　　安裝時注意：風管接口不得安裝在墻內或樓板中，風管沿墻體或樓板安裝時，距離墻面、樓板宜大于150mm。風管分節安裝：對于不便懸掛滑輪或因受場地限制，不能進行吊裝時，可將風管分節用繩索拉到腳手架上，然后抬到支架上對正法蘭逐節安裝。

　　Attention during installation: The air duct interface should not be installed inside the wall or floor slab. When installing the air duct along the wall or floor slab, the distance from the wall or floor slab should be greater than 150mm. Segmented installation of the air duct: For situations where it is inconvenient to hang pulleys or cannot be lifted due to site limitations, the air duct can be segmented and pulled onto the scaffold with ropes, and then lifted onto the bracket to align with the flange for installation section by section.

　　（5）風管調整風管安裝后應進行調整，風管應平正，支吊架順直。

　　(5) After the installation of the air duct, it should be adjusted to ensure that the air duct is level and straight, and the supports and hangers are straight.

　　（6）質量檢查主要檢查風管安裝的位置及標高、表面平整情況、連接墊料、法蘭連接螺栓、支吊架安裝等。

　　(6) The quality inspection mainly checks the installation position and elevation of the air duct, the surface flatness, the connection gasket, flange connection bolts, and the installation of supports and hangers.

　　本文由  濟南通風管道 友情奉獻.更多有關的知識請點擊  http://www.jnhxtcg.com/   真誠的態度.為您提供為全面的服務.更多有關的知識我們將會陸續向大家奉獻.敬請期待.

　　This article is a friendly contribution from Jinan ventilation ducts For more related knowledge, please click http://www.jnhxtcg.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.