秋霞乱码_午夜福利精品在线观看_精品国产一区二区三区卡蜜_午夜福利辣文_欧美内射久久_亚洲精品乱码_日韩三级99视频在线观看_中文字幕色区_色婷婷香蕉在线一区二_大香蕉大香蕉大香蕉_亚洲精品久久视频_亚洲无码精品久久_五十路人妻 久久 中文字幕,在线岛国爱片无码免费,尤物资源在线无码,少妇无码潮喷在线观看免费,久久亚洲精品成人无码漫画,大乚吧操无码在线免费小,中文字幕日韩免费av,久久精品资源,熟妇少妇任你躁在线无码,久久亚洲无码专区桃色,国产盗摄摄像头偷窥,自拍视频区,国产色婷婷亚洲99精品小说,亚洲人成网亚洲欧洲无码久久,日韩欧美中文字幕在线一区,久久伊人精品中文字幕有软件,国产乱国产乱老熟部视频,亚洲AV无码园产精品午夜久久 ,亚洲国产精品无码久久大片,肉肉描写很细致的黄文,男女做哎爱过程图片,精品人妻无码在中文字幕,国产精品日本无码久久一老,成在人线无码免费高潮水,亚洲va欧美va天堂v国产桃,天堂资源中文最新版在线一区

　　（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，否則會提升流動阻力，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.為您提供為多維度的服務.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.