Ventilation pipes are mainly used in industrial and architectural engineering, and the application fields are mainly involved in the cleaning system of the dust free factory building in the electronic industry.

　　醫藥食品無菌車間凈化系統，酒店賓館、醫院、工廠及寫字樓的空調系統，工業污染控制用除塵、排煙、吸油等排風管、工業環境或崗位舒適用送風管、煤礦抽放瓦斯用抽放瓦斯系統、煤礦礦井環境控制用送回風系統等等;

　　Purification system of medicine and food aseptic workshop, hotels, hospitals, shopping malls and office buildings factory of central air-conditioning system, dust, smoke, oil and exhaust pipe, or post industrial environment with comfortable air supply pipe and gas drainage system, gas pumping for coal mine environment control air supply system and so on industrial pollution control;

　　1)對于比較復雜的民用建筑，在設計階段，各工種(暖通、給水排水，供電照明與建筑)應協商好空間分隔，定出每種管道的標高范圍。一般情況下不得越出給自己規定的界限。遇有個別管段要越界時應與通風管道其他工程協商。

　　1) for complex civil buildings, at the design stage, all kinds of work (HVAC, water supply and drainage, power supply lighting and Architecture) should first negotiate the space separation and determine the elevation range of each pipeline. The general case not set himself beyond the boundaries. In case there is a separate section to cross the boundary, it should be negotiated with other engineering of the ventilation pipe.

　　2)解決各種通風管道相碰及協調的原則，一般為：“小管讓大管，有壓讓無壓”。例如，自來水管與風管相撞，則應當自來水管拐彎。冷、熱水管與下水管相碰，則應改變冷、熱水管道。

　　2) to solve all kinds of ventilation pipe collision and coordination principle, generally: "let the pressure get tubular bassoon, no pressure". For example, the water pipe and the wind pipe collide, then the tap water pipe should be turned. The cold and hot water pipes and water pipes together, should change the cold and hot water pipe.

　　3)施工前應設備總管的工程師，將各工種的管線，單線畫在一張平面圖上。每種管道用一種彩色筆。在各交點處綜合其標高，看是否有矛盾之處，及時發現，將問題解決在安裝之前。

　　3) before the construction, the engineer of the equipment general pipe will draw the lines of each type of work and draw the single line on a flat map. Each type of pipe is used with a color pen. In each point of the intersection of its elevation, see if there is any contradiction, timely discovery, the problem is solved before the installation.

　　4)為了減少投資，節省空間，降低層高，有些敷設無坡度要求的管道，可以穿梁敷設(如自來水管道，消防噴灑干管等)。

　　4) in order to reduce investment, save space and reduce storey height, some laying pipes without slope requirements can be laid on beams (such as water pipes, fire sprinkler pipes, etc.).

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