通風擋板 的英文怎麼說

中文拼音 [tōngfēngdǎngbǎn]
通風擋板 英文
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  • 通 : 通量詞（用於動作）
  • 風 : Ⅰ名詞1 （空氣流動） wind 2 （風氣; 風俗） practice; atmosphere; custom 3 （景象） scene; view 4 ...
  • 擋 : 擋Ⅰ動詞1 （攔住; 抵擋） keep off; ward off; block; resist 2 （遮蔽） cover; block; get in the way...
  • 板 : Ⅰ名詞1 （片狀硬物體） board; plank; plate 2 （專指店鋪的門板） shutter 3 [音樂] （打拍子的樂器） ...
  • 通風 : 1 （使空氣流通） ventilate; air 2 （透氣） be well ventilated 3 （透露消息） divulge information;...
  1. This thesis chiefly analyzes the problem of exchanging heat quantity and the methods of the improvement of cooling tower in power station, compares and analyses the advantages and disadvantages of it. this thesis will discuss how to prevent natural - draft counter - flow wet cooling tower from freezing in winter, and compute the areas of draught deflectors

    本文針對自然通風逆流式冷卻塔冬季運行時的防凍處理，及預防結冰所應採取的措施進行研究和計算，提出以增加或減少擋風板的高度來控制出塔水溫的方法，並對其進行計算分析。
  2. When temperature changed, in order to keep the outlet temperature of the cooling water stable, we can change the areas of draught deflectors, so the speed and area of the draught is changed, which will improve the safety and economy of the running assembling sets with the assumption of economizing water in winter

    當外界溫度發生變化時，為保證出塔水溫不發生變化，可通過改變擋風板面積的方法，使進風口面積及進塔風速發生改變，進而保證出塔水溫，保證冷卻塔在冬季的正常運行。
  3. Shutter is one kind of inlets used widely in natural ventilation, therefore, the study for shutters may be a breakthrough for using natural ventilation more effectively. firstly, this paper will study the performance of shutters in single side by cfd. secondly, we will work at hoods with shutters in four sides

    百葉風口是自然通風中使用最廣泛的風口，因而對于百葉風口的研究則有可能成為更為有效合理利用自然通風的突破點，本文將利用數值模擬首先對單側百葉風口的性能進行研究，在此基礎上，本文對實際中應用比較廣泛的四面百葉型風帽進行了研究，並對單側百葉風口的擋雨板的合理設計方法做初步探討。
  4. 2 access to fixture valves in the fume hood wall shall be through exterior removable access panels, gasketed access panels on the inside liner walls, or through removable front posts

    安裝通風櫃內閥門管道可以通過3種方式：外層可拆除的側擋板、內部密封的視窗擋板、和可拆除的前面板。
  5. For shutters, the results show : 1 ) according to the formula p =, the theoretical value of is calculated by the effective velocity of the flow, and its engineering value is calculated by the arriving velocity of the flow, the relationship between the theoretical value of and its engineering value is 2 ) the smaller value of declining angle will result in the smaller pressure loss and smaller outlet velocities. as a result, the declining angle of 30 擄 or less is recommended in some places which need small wind velocity, such as broadcasting studio and library, and the declining angle of 45 擄 or less is recommended in places which need big wind velocity, such as cinema and office ; 3 ) the larger value of ratio between the wide of the shutter b and the space between two boards h ( b / h ) will result in the larger pressure loss and smaller outlet velocities. the range of b / h from 0. 8 to 2. 0 and the optimum value 1. 2 is recommended ; 4 ) the range of b from 10 mm to 50 nun and the optimum value 40 mm is recommended ; 5 ) the proper thickness of the boards 8 of the shutters is 1. 5 mm ; 6 ) cuneiform boards should replace the rectangle inlet boards of the shutters in order to obtain better ventilation

    數值模擬採用fluent軟體，計算結果用excel進行處理，通過對大量數值工況進行數值模擬計算，結果表明：對于單側百葉風口，計算表明： 1 ）對于公式p = （ ~ 2 ） 2 ，的理論計算值中定義為流體流經百葉風口內部時的速度，即有效速度，而工程上常使用流體的來流速度來計算，計算表明，的理論計算值與工程應用值的關系為（ _ （理論） ） （ _ （工程） ） = 0 . 813 ； 2 ）當來流速度一定時，擋板傾斜角度越小，壓力損失越小、出口速度越小；因此在要求進口風速比較小的場所，如播音室、圖書館等，宜採用擋板角度30的百葉風口；在要求進口風速比較大的場所，如電影院、辦公室等，百葉擋板的角度應選45 ； 3 ）當來流速度一定時，百葉擋板的擋板寬度b與擋板間距h的比值b h越大，壓力損失越大，出口速度越小，計算表明，鑒于壓力損失、出口風速、板間形成渦流區的大小，百葉擋板的b h值取0 . 8到2 . 0之間， b h = 1 . 2為最佳值； 4 ）當來流速度一定時，在計算的條件下，當百葉擋板寬度b = 40mm時，百葉擋板的阻力系數最小，考慮到渦流區等的影響，建議選用10mm b 50mm的百葉擋板；西安建築科技大學碩士學位論文5 ）百葉擋板的厚度取為1 . sinln為好; 6 ）百葉擋板的入口側可選用具有傾斜度的楔形擋板來代替矩形擋板，利用其較好的導流作用，可得到更好的出流效果。
  6. Applying virtual instrumentation technology, the author designed the hardware and software of the blower performance testing system. in the hand of hardware, testing data is acquired automatically according to press - difference sensor, press sensor and torch sensor ; blower speed is adjusted automatically according to frequency conversion of transducer and working state is auto controlled according to rotating baffle controlled by the step motor

    硬體上採用壓差傳感器、壓力傳感器和扭矩傳感器檢測各試驗數據，實現了試驗數據的自動採集；利用變頻調速技術控制變頻調速器輸出信號的頻率，實現了風機轉速的自動調節；通過設置旋轉擋板裝置並用步進電機控制其旋轉角度實現了風機運行工況的自動控制。
  7. An adjustable plate, as in the flue of a furnace or stove, for controlling the draft

    擋板，調節風門一種可調節的薄片，如在熔爐或火爐的通氣管中的，用來控制氣流
  8. The parameter is selected according to needing. according to analyzing, the power is cubic proportion to the speed, it is great remarkable to reduce the speed for releasing the load of suck - wind machine contrast to adjust the opening degree of baffle small

    經分析得知，功率與速度的二次方成正比，因此引風機低負荷運行通過降速來實現，同關小風機入口擋板來實現相比節能效果是十分顯著的。
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