預燃器 的英文怎麼說
中文拼音 [yùránqì]
預燃器
英文
premix burner-
Simpler and cheaper are solid - fuel engines ; their fiery impetus comes from burning premixed fuel and oxidizer grains that are packed like coffee grounds into a cylindrical casing
固體燃料引擎比較簡單,也比較便宜,其猛烈的推力來自於燃燒預先混合好的燃料和氧化劑顆粒,它們像磨好的咖啡粉一樣,裝在圓筒狀的容器中。The top - firing air and gas self - preheating hot blast stove adopts a patented burner and high blast temperature bypass flue
摘要頂燃式空氣、煤氣自身雙預熱熱風爐採用了頂燃式燃燒器熱風爐專利的燃燒器技術和高溫旁通煙道技術。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。Kjv : he hath also prepared for him the instruments of death ; he ordaineth his arrows against the persecutors
新譯本:他親自預備了致命的武器,他使所射的箭成為燃燒的箭。Nuclear fuel technology - determination of uranium in reprocessing - plant dissolver solution - liquid chromatography method
核燃料技術.預處理廠溶解器溶液中鈾的測定.液相色譜法Abstract : aimed at the accident of chatching fire of a certain type of self - propelled antitank gun s chamber, the paper analyses the normal burning of powder and the efficiency of the gun s extracting device and other factors affecting the burning velocity, makes an improvement on the weapon system, and puts forward the requirements for using the gun under army conditions
文摘:針對某型自行火炮實彈射擊中戰斗室彈藥倉內半可燃藥筒起火燃燒事故,通過對可燃藥筒完全燃燒的理論分析和火炮抽氣裝置結構效率分析以及可能影響藥筒燃燒速度的其他因素分析,提出武器系統及可燃藥筒改進意見,並對部隊條件下的使用提出了要求,對改善裝備性能,預防事故發生具有重要意義。Investigation on unusual eddying tube type fuel perheater
異形凹槽旋流管式燃油預熱器的研製Abstract : this paper briefly presents th e application of advanced brazing techniques for a larye number of assemblies of space vehicles, such as thrust chamber and turbine rotor of launch rock et engine, titanium tube of satellite, attitude control engine injector and wave guide component of satell ite, reflector, tube and honeycomb panel of manned spacecraft, main engine nozzl e and preburner of space shuttle as well as the pipeline systems of space statio n
文摘:簡略地介紹了先進釬焊技術在航天器部件,例如運載火箭發動機的推力室和渦輪轉子、人造衛星的鈦導管、姿控發動機噴注器和波導器件、載人飛船的反射器、導管和蜂窩壁板、航天飛機的主發動機噴管和預燃室以及空間站的管路系統等的廣泛應用情況。The paper introduces development and research of foreign gas engines and describes briefly lean - burn combustion, egr, structure of pre - combustion as well as application of turbocharger and miller cycle and analyzes the effect of the technologies on emission and efficiency of engines
本文介紹了目前國外氣體機的發展技術研究現狀,並對稀燃技術、 egr技術、預燃室的結構、增壓器的採用和米勒循環的應用等技術作了簡要介紹,簡要的分析了這些技術對發動機的排放、效率的影響。Its major facilities include a dedicated apron for aircraft parking, an executive terminal, a 23, 800 square - foot hangar, aircraft and avionics service bays, refuelling equipment, a maintenance base, weather and flight briefing room and a business centre for travellers, making it the first of its kind in the region
主要設施包括專停機坪客運中心23 , 800平方尺的飛機庫航機及電子儀器維修服務燃油補給設施維修基地氣象預報兼飛行計劃編制中心及旅客商務中心,是區內首個擁有上述裝備的商用航空中心。This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory
本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物質的能量(發熱量)和c 、 h 、 n元素含量,根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便; ( 2 )選擇了8種生物質試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數進行了求解,解析出各種生物質的頻率因子和活化能參數,進而建立了各種生物質的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定,得出生物質的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究,解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,推導、建立了轉錐式閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。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:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對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
針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。This hot blast stove has following features : the highest temperature of flue gas in general flue reaches 600 ; the air and gas are preheated to 300 ; the hot blast temperature is over 1200 ; the flue gas temperature is below 180
使用該熱風爐后所取得的效果是:總煙道內綜合排煙溫度可達600 ;可將空氣、煤氣預熱到300 ;以單一高爐煤氣為燃料時,熱風溫度可達1200以上;煙氣經過空氣、煤氣換熱器后溫度低於180 。Then, the idea of integrating the standard configurable modules to building the basic model universal ats is brought forward, and the basic model universal ats fitting the rocket engine ground test is built by using the scheme of “ vxi ( or pxi ) and plc ”
將基本型通用ats應用到不同類型的固體火箭發動機、燃氣發生器和壓力恢復系統地面試驗中。經過近千次試驗考核,系統滿足試驗需求,達到了預期設計目標。試驗驗證了開放式柔性ats體系結構的合理性和基本型通用ats設計的可行性。With the rapid development of computational fluid dynamics and combustion theory, applying the computer to numerically simulate the complicated processes in the plasma ignition is possible. using numerical simulation can estimate the parameters which are not essay to measure and not doing so many experiments can improve its reliability and reduce the cost. so numerical simulation is a new pattern way to study the inner mechanism of the plasma ignition
隨著計算流體力學和燃燒理論的發展及計算機的廣泛應用,用數值模擬等離子點火器內部燃燒系統流動、傳熱、傳質、化學反應等復雜的過程已成為可能。應用數值模擬的方法可以對實驗難以測量的量進行預估,而不需要大量的試驗,應用數值模擬的方法來解決等離子點火器燃燒性能的分析和工程設計,有利於提高工作的可靠性和經濟性。In this article, constituting some the equations which reflect the flow law and building and applying many mathematical models of physical and chemical reactions in the the plasma ignition : applying k - two equations turbulence model to calculate the turbulence parameter supplying simplied reaction systerm model and applying eddy break - up model and p - i thermal radiation model. with these reasonable simplied modles, numerically simulating the flow field in the plasma ignition. during the numerical simulation, applying the body - fitted coordinates for the complex geometry of the computional field ; using the mixing format to disperse the equations ; applying simplec algorithm method to solve the equations ; using above models and methods, it can get flow field distribution ; including temperature, pressure, turbulent kinetic energy and its dissipation rate, turbulent viscosity, velocity, density. these results are significant to design and improve the plasma ignition
本文旨在通過構造反映等離子點火器內部流動規律的基本方程組,建立描述等離子點火器內部的復雜物理化學過程機制數學模型:模擬等離子發生器內部燃燒的-雙方程湍流流動模型;模擬氣體燃料在燃燒時中化學反應的簡單化學反應系統模型;模擬等離子點火器內部湍流預混燃燒的漩渦破碎模型;模擬等離子點火器高溫燃氣及其壁面的p - i輻射換熱的模型等等,對模型進行一定的合理的簡化,然後數值模擬等離子點火器內部流場的流動。Prevention and disposal of rotary air pre - heater secondary combustion
回轉式空氣預熱器二次燃燒的預防與處理It is very important problem how to detect aggregate fuels and sediments temperature on air preheater parts surface effectively in order to prevent air preheater from fire
如何有效地檢測空氣預熱器表面的燃料油污沉積物的溫度,是防止空氣預熱器表面起火所必須考慮的問題。Ensures cleaner tanks, lines, strainers, preheaters and burners
清潔油罐(箱) 、管路、過濾器、預熱器以及燃燒器。分享友人