中文字幕日韩人妻视频一区,99国产精品视频免费,久久热视频免费在线观看,日本高清二区不卡,91午夜激情视频在线看,国产综合一区二区三区av,成人久久久国产精品成人,日韩欧美素人丝袜视频,国产色av综合在线

　?。?）風(fēng)管安裝前，應(yīng)先對其安裝部位進(jìn)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.

　?。?）支吊架不應(yīng)設(shè)置在風(fēng)口、閥門、檢查口及自控機(jī)構(gòu)操作部位，且距風(fēng)口不應(yīng)小于200mm。（3）材料應(yīng)具有出廠合格證、質(zhì)量證明書及產(chǎn)品清單，風(fēng)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(jù)施工現(xiàn)場情況，風(fēng)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(fēng)管，按施工圖進(jìn)行排列，為連接做好準(zhǔn)備，風(fēng)管連接應(yīng)用廣泛的方式是法蘭連接。①法蘭連接時(shí)，按設(shè)計(jì)要求放置墊料，法蘭墊料不能擠入或凸入管內(nèi)，否則會(huì)增大流動(dòng)阻力，增加管內(nèi)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.

　?、诎褍蓚€(gè)法蘭先對正，穿上幾條螺栓并戴上螺母，暫時(shí)不要上緊，然后用尖沖塞進(jìn)穿不上螺栓的螺孔中，把兩個(gè)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(shí)應(yīng)按十字交叉逐步均勻地?cái)Q緊，連接好的風(fēng)管，應(yīng)以兩端法蘭為準(zhǔn)，拉線檢查風(fēng)管連接是否平直。

　?、?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(fēng)管安裝：有接長吊裝法和分節(jié)安裝法。

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

　　風(fēng)管接長吊裝：是將在地面上連接好的風(fēng)管，一般可接長至10～20m左右，用倒鏈或滑輪將風(fēng)管升至吊架上的方法。風(fēng)管吊裝步驟：①首先應(yīng)根據(jù)現(xiàn)場具體情況，在梁柱上選擇兩個(gè)可靠的吊點(diǎn)，然后掛好倒鏈或滑輪。②用麻繩將風(fēng)管捆綁結(jié)實(shí)。塑料風(fēng)管如需整體吊裝時(shí)，繩索不得直接捆綁在風(fēng)管上，應(yīng)用長木板托住風(fēng)管的底部，四周應(yīng)有軟性材料做墊層，方可起吊。③起吊時(shí)，當(dāng)風(fēng)管離地200～300mm時(shí)，應(yīng)停止起吊，仔細(xì)檢查倒鏈?zhǔn)交喪芰c(diǎn)和捆綁風(fēng)管的繩索，繩扣是否牢靠，風(fēng)管的重心是否正確，沒問題后，再繼續(xù)起吊。④風(fēng)管放在支吊架后，將所有托盤和吊桿連接好，確認(rèn)風(fēng)管穩(wěn)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(shí)注意：風(fēng)管接口不得安裝在墻內(nèi)或樓板中，風(fēng)管沿墻體或樓板安裝時(shí)，距離墻面、樓板宜大于150mm。風(fēng)管分節(jié)安裝：對于不便懸掛滑輪或因受場地限制，不能進(jìn)行吊裝時(shí)，可將風(fēng)管分節(jié)用繩索拉到腳手架上，然后抬到支架上對正法蘭逐節(jié)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.

　?。?）風(fēng)管調(diào)整風(fēng)管安裝后應(yīng)進(jìn)行調(diào)整，風(fēng)管應(yīng)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.

　?。?）質(zhì)量檢查主要檢查風(fēng)管安裝的位置及標(biāo)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(jì)南通風(fēng)管道 友情奉獻(xiàn).更多有關(guān)的知識請點(diǎn)擊  http://www.jnhxtcg.com/   真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識我們將會(huì)陸續(xù)向大家奉獻(xiàn).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.