convection loss 中文意思是什麼

convection loss 解釋
對流損耗
  • convection : n. 1. 傳送。2. 【物理學】運流，環流；【氣象學】對流，上升氣流。
  • loss : n. 1. 喪失；丟失，遺失。2. 減損，損失，虧損（額）；損耗；減少，下降。3. 失敗；輸掉。4. 錯過；浪費。5. 損毀；【軍事】傷亡；〈pl. 〉 傷亡及被俘人數。
  1. Methods for thermal testing of domestic solid mineral fuel burning appliances with convection - flue loss method

    對流式家用固體礦物燃料燃燒器具熱試驗方法.第1部分:燃料損耗法
  2. After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %

    摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定，確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒，增設煙氣含氧量分析，可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下，極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果，從而降低排煙溫度45 ，減少加熱爐排煙損失，節約了煤氣量6 %以上。
  3. 3. on boiler retrofit, the calculation of fuel burning, the heat calculation of boiler inside structure and convection section, and the design of structure parameter of feed water heat exchanger are made. the flue gas channels " resistance calculation and the boiler strength verifying are also carried out. replacement of water cooling wall improves heat exchanging and decreases loss of heat radiant

    對鍋爐本體進行了燃料燃燒計算、爐膛結構熱力計算、對流受熱面結構熱力計算、鍋爐給水加熱器結構參數設計、煙道阻力計算及鍋爐元件強度校核等；改進了水冷壁布置使換熱效果更好，減少輻射換熱損失；改進對流段結構，更充分的利用爐膛出口煙氣余熱，提高熱效率；並且進行了煙氣阻力計算、熱效率計算和能量平衡測試，對改進后的稠油燃料和改進前進行了對比，燃燒狀況和熱效率有明顯改善。
  4. Between glass - cover board and endothermic board, honeycomb is placed, which can eliminate heat loss caused by air natural convection and greatly reduce heat loss caused by radiation, and hence a better transfer heat efficiency

    而在透明玻璃蓋板和吸熱板之間放置蜂窩結構，基本上能消除吸收表面和蓋板之間的空氣自然對流熱損失，並可大大降低輻射損失，顯著提高集熱器的熱轉換效率。
  5. Abstract : the causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %

    文摘:分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上
  6. The causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %

    分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上
  7. The annular space between the outer tube and inner tube is evacuated to virtually eliminate heat loss by conduction and convection

    而介於外管與內管的真空環狀部分是用來減少熱散失的。
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