熱煙氣 的英文怎麼說
中文拼音 [rèyānqì]
熱煙氣
英文
hot-gas-
The gas can be cooled by a heat exchanger after the air heater.
煙氣可以用空氣加熱器后的熱交換器來冷卻。Sintering flue gas desulfurization hot testing devices
燒結煙氣脫硫熱態試驗裝置From simulations and data of fire site, most air preheater fire often appear when boiler is started in cool state and standby which fuels of insufficient combustion coagulate and congregate on the parts of air preheater. when the temperature of smoke inpouring air preheater increases, aggregate fuels and sediments will combust in stated temperature conditions. it is called the second combustion of air preheater
這些起火起因於燃料油的不充分燃燒，其結果是未充分燃燒的燃料油凝結和聚集在空氣預熱器的部件上，當進入空氣預器的煙氣溫度增高時，沉積的燃料油被烘烤，當達到一定溫度條件時，則可點燃這些燃料油污沉積物，造成火災發生，這通常被稱為空氣預熱器的二次燃燒。Through measuring residual swhirling flow field in the flue duct of a real boiler, and analysing layout features of front and back platen supe - heaters in large - scale tangential firing boilers, the flue gas energy distribution regularity in horizontal flue duct of tangential firing boilers has been studied
摘要通過對實際鍋爐煙道煙氣殘余旋轉流場的測量及大型切圓燃燒鍋爐前、后屏過熱器的布置特點分析，研究了切圓燃燒鍋爐水平煙道煙氣能量的分佈規律。High temperature resistant measure is taken to extend its service life significantly in comparing with the tube still hot air furnace, whereas, cross brushing of heat sink by the smoke and negative pressure smoke exhaust are used to ensure a clean heat exchanging position with stable thermal performance
該爐採取了耐高溫措施，從而使其壽命比列管式熱風爐大大延長，並採用了煙氣縱向沖刷散熱片和負壓式排煙方式，換熱部分不積灰塵，無須清理，熱性能穩定。The unique blade louver damper with heared sear air is the solution to large crosssection / high temperature damper applications such as air heater isolation, fgd systems
帶加熱密封空氣的單層葉片百葉窗式檔板門，可用於大截面煙道檔板門和高溫檔板門.例如:空氣加熱器的隔絕門，煙氣脫硫系統中Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點，提出多變量協調控制方案，解決了系統可控性差，難以實現穩定自動運行的問題；在此基礎上，改變以往以煙氣含氧量控制送風的傳統模式，針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重，煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題，應用智能控制理論中的模糊控制技術，結合自尋最優控制的思想，設計了一種模糊自尋優控制器，應用在電站鍋爐送風控制系統上，並闡述了動靜態兩種實現途徑，通過在線優化風煤配比，實現最佳經濟燃燒，切實保障了鍋爐的經濟運行。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。The intermediate pressure exhaust gas boiler in the shop of yantzi petrochemical oil refinery works is needed to recycle the exhaust heat from the dust
揚子石化煉油廠催化裂化車間中壓余熱鍋爐，用來回收催化再生煙氣的余熱。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。2. design scheme of gravity heat pipe air pre - heater is proposed which fits the actual situation of injecting steam boilers. detailed heat calculation and design on heat recovery of flue gas is carrying out
提出了採用適合於注汽爐實際工況的重力熱管式空氣預熱器的設計方案，對煙氣的余熱回收進行了詳細的熱力計算和設計。Numerical simulation of the interaction between smoke and water mist in fire
細水霧與熱煙氣相互作用數值模擬研究Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
文摘:運用cfd進行數字模擬，以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要，熱煙氣流特性受火源位置的影響很大，並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好，也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明，在縱向通風隧道內，熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現，火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區The three - wastes fluid - bed multifuel burner utilizes the characteristics of fluid - bed burning and the blow gas waste heat boiler for recovery, and burns the waste gas, ash and residue from the gasifier to produce hot flue gas, which, after dust settling in the multiple dust collector, enters the waste heat boiler to recover waste heat for the generation of high - grade steam to be used in production
摘要三廢流化床混燃爐系運用流化床燃燒特點，採用吹風氣餘熱鍋爐回收模式，對造氣產生的廢渣、廢灰、廢氣混燃，產生熱煙氣，經組合式除塵器除塵后，進入餘熱鍋爐回收餘熱，生產高品質蒸汽供生產用。Analysis result of simulation shows : underground commercial streets and atrium can use natural filling. in the actual engineering, mechanical smoke exhaust system is used by the local fire department added. the night club uses a set of mechanical smoke exhaust system, and the quantity of supply air can ’ t be less than 50 percent of the exhaust
模擬研究表明:地下商業街和中庭可以採用自然填充，在實際工程中當地消防部門在中庭增設機械排煙系統，以加快熱煙氣的排放;夜總會採用機械排煙，補風量不應小於排煙量的50 % 。The hight and temperature of heat smoke during the fire was obtained by using numerical simulation method, people in the bowling alley could evacuate safely was proved and the building ' s fire safety objective was satisfied
通過數值模擬給出了發生火災時的熱煙氣層溫度和熱煙氣層高度發展過程，證實了保齡球館的水噴淋和機械排煙系統能夠保證人員安全疏散，滿足消防安全要求。In this paper, performance - based fire safety design concept was adopted to analyze fire safety objective of a underground bowling alley should achieve, fire scenarios were designed and the performance of water sprinkler and mechanical smoke evacuation system was studied by using zone model
摘要採用性能化防火設計的思想，分析了某地下保齡球館火災熱煙氣安全需求，設計了可能發生的火災場景，使用區域模擬技術研究了保齡球館水噴淋和機械排煙系統的有效性。After the flue heat evaporates the moisture, dry sodium or calcium salts and the un - reacted absorbent are collected in the dust collector. however, very few domestic companies have the ability to manufacture the fdg system
，吸收劑噴入洗滌塔時為霧化的泥漿，水汽慢慢地被熱煙氣所蒸發，最後以乾鈉鹽或鈣鹽及未反應的吸收劑混合物之型式，被集塵機所收集去除。They are removed using catalytic or oxidation reactions to form non - toxic nitrogen or nitrates. practical processes include ammonia and catalytic method, high - temperature nitrogen reduction method, activated carbon and incineration as well as alkaline washing
，吸收劑噴入洗滌塔時為霧化的泥漿，水汽慢慢地被熱煙氣所蒸發，最後以乾鈉鹽或鈣鹽及未反應的吸收劑混合物之型式，被集塵機所收集去除。分享友人