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convection section造句

"convection section"是什么意思  
造句與例句手機(jī)版
  • 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(duì)鍋爐本體進(jìn)行了燃料燃燒計(jì)算、爐膛結(jié)構(gòu)熱力計(jì)算、對(duì)流受熱面結(jié)構(gòu)熱力計(jì)算、鍋爐給水加熱器結(jié)構(gòu)參數(shù)設(shè)計(jì)、煙道阻力計(jì)算及鍋爐元件強(qiáng)度校核等;改進(jìn)了水冷壁布置使換熱效果更好,減少輻射換熱損失;改進(jìn)對(duì)流段結(jié)構(gòu),更充分的利用爐膛出口煙氣余熱,提高熱效率;并且進(jìn)行了煙氣阻力計(jì)算、熱效率計(jì)算和能量平衡測(cè)試,對(duì)改進(jìn)后的稠油燃料和改進(jìn)前進(jìn)行了對(duì)比,燃燒狀況和熱效率有明顯改善。
  • Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency , therefore measures for technical reform are offered , including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
    文摘:針對(duì)早期建造的煉油廠和化工廠在役管式加熱爐熱負(fù)荷和熱效率低的狀況,提出了若干技術(shù)改造措施包括,增大對(duì)流管表面積以增大對(duì)流段的熱負(fù)荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風(fēng)為強(qiáng)制供風(fēng),以增大燃燒器的發(fā)熱量,減小過??諝庀禂?shù),節(jié)省燃料2 % 3 % ;在對(duì)流段和煙囪之間增設(shè)空氣預(yù)熱器以提高空氣入爐溫度;采用高溫輻射涂料增強(qiáng)輻射換熱效果,從而增加熱源對(duì)爐壁的輻射傳熱量和爐管的傳熱量等。
  • The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency , therefore measures for technical reform are offered , including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
    針對(duì)早期建造的煉油廠和化工廠在役管式加熱爐熱負(fù)荷和熱效率低的狀況,提出了若干技術(shù)改造措施包括,增大對(duì)流管表面積以增大對(duì)流段的熱負(fù)荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風(fēng)為強(qiáng)制供風(fēng),以增大燃燒器的發(fā)熱量,減小過剩空氣系數(shù),節(jié)省燃料2 % 3 % ;在對(duì)流段和煙囪之間增設(shè)空氣預(yù)熱器以提高空氣入爐溫度;采用高溫輻射涂料增強(qiáng)輻射換熱效果,從而增加熱源對(duì)爐壁的輻射傳熱量和爐管的傳熱量等。
  • It's difficult to see convection section in a sentence. 用convection section造句挺難的
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