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        通風管道設計的一般準則!

        來源:http://www.boursomarket.com 日期:2021-07-10 發布人:jntfgd

        通風管是通風空調工程中使用的金屬或復合管。它是使空氣流動和降低有害氣體濃度的基礎設施。通風管道內風管生產、安裝所用的面板、型材等主要成品材料,應當符合現行國家設計和有關產品標準的規定,并申請出廠檢驗合格證。材料進場時應按現行國家標準進行驗收。
        Ventilation pipe is a metal or composite pipe used in ventilation and air conditioning engineering. It is the infrastructure to make the air flow and reduce the concentration of harmful gases. The panel, profile and other main finished materials used in the production and installation of the air duct inside the ventilation duct shall comply with the current national design and relevant product standards, and apply for the factory inspection certificate. When entering the site, the materials shall be accepted according to the current national standards.
        一個好的送風系統設計,應該使系統的初始投資和運行成本能夠降低。通過遵循以下管道設計的一般準則,仍然可以在系統的初始投資和運行成本之間實現合理的平衡。
        A good design of air supply system should reduce the initial investment and operation cost of the system. By following the following general guidelines for piping design, a reasonable balance can still be achieved between the initial investment and operating costs of the system.
        1、風管應盡可能呈直線布置
        1. The air duct should be arranged in a straight line as far as possible
        風管系統采用直線布置,運行能耗和初期投資很低。從成本分析的角度來看,直管的成本遠遠低于各種彎頭和其他管件。因此,在布置風管系統的平面走向時,應盡量減少轉彎次數。過于復雜的系統,經常需要定期維護,維護程序復雜且昂貴。所以一個好的控制系統應該盡可能簡單可靠,易于維護或者不需要定期維護。控制系統的設計應盡可能考慮將來的修改和擴展。
        The air duct system is arranged in a straight line with low energy consumption and initial investment. From the perspective of cost analysis, the cost of straight pipe is far lower than that of various elbows and other pipe fittings. Therefore, in the layout of the plane direction of the air duct system, the number of turns should be reduced as much as possible. Too complex system, often need regular maintenance, maintenance procedures are complex and expensive. So a good control system should be as simple and reliable as possible, easy to maintain or do not need regular maintenance. The design of control system should consider the future modification and expansion as far as possible.
                                  
        2、標準長度的直管段用于盡量減少各種異徑管和接頭的數量
        2. Standard length straight pipe sections are used to minimize the number of various reducers and joints
        標準長度的直管由于加工成本低,建造成本相對較低。從技術上講,任何非標準長度的矩形風管都可以用作附件,因為它們不能用標準線圈制成。
        Due to the low processing cost, the construction cost of standard length straight pipe is relatively low. Technically, any rectangular duct of non-standard length can be used as an accessory because they cannot be made of standard coils.
        3、建議采用螺旋圓形風管
        3. Spiral circular duct is recommended
        圓形風管允許更高的風速。矩形風管的允許風速一般較低。采用圓形風管和較高的送風速度將大大節省投資。與類似的矩形風管系統相比,圓形風管系統可節省30%的鋼板。螺旋風管的制造自動化程度高,生產速度快。螺旋風管的成本低于矩形風管,因為鍍鋅帶鋼作為原材料的價格低于整個鍍鋅鋼板,加上工廠生產和規格的標準化。另外,由于其支、吊架所需工作量少,安裝工作量少,所以總成本較低。
        Circular duct allows higher wind speed. The allowable wind speed of rectangular duct is generally low. The use of round duct and higher air supply speed will greatly save investment. Compared with the similar rectangular duct system, the circular duct system can save 30% steel plate. Spiral duct has high degree of automation and high production speed. The cost of spiral duct is lower than that of rectangular duct, because the price of galvanized steel strip as raw material is lower than that of the whole galvanized steel sheet, plus the standardization of factory production and specifications. In addition, the total cost is low due to the less workload of support and hanger and installation.
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