預加熱器 的英文怎麼說

中文拼音 [jiā]
預加熱器 英文
fore warmer
  • : Ⅰ副詞(預先; 事先) in advance; beforehand Ⅱ動詞(參與) take part in
  • : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
  1. Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution

    在此基礎上模擬在冬夏兩季不同情況下,不同流速對管空氣壁面溫度的影響;然後對影響整個流場分佈的各種因素:包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬;最後提出在分流煙道轉彎處裝導流板,並模擬裝導流板后的流場分佈,得到下級空氣出口、管空氣進口處的斷面速度場分佈、濃度場分佈,以論證裝導流板能達到流場均勻化的作用。
  2. The new developments of htm station technique were introduced from the aspects such as changing the htm pipeline type in pet htm station, increasing the switch forms of steam atomization and compressed air atomization, increasing the steam generator, sending stripping tower off - gas to combination and using new material nd steel in air preheater

    摘要從改變聚酯媒站的媒爐媒管線形式、增蒸汽霧化與壓縮空氣霧化的切換形式、增蒸汽發生、汽提塔尾氣送燒、空氣採用新型材質nd鋼等方面介紹媒站技術的新發展。
  3. Preassembly of economizer coils shall be expedited ; 100 nos. joints of eco. & sh shall be welded

    快省煤蛇形管排組合,本周內完成省煤和過介面100個
  4. Frame for pre - heater at kiln inlet will adopt steel structure to save investment, accelerate erection speed and beautify building

    改進窯尾工藝布置,窯尾塔架設計為鋼結構,既可快施工安裝進度,節省投資,又可美化建築。
  5. Heat pipe air pre - heater is adopted to recover gas heat to heat up cold air for burning, reducing flue gas temperature and increasing heat efficiency of injecting steam boiler

    採用管式空氣,利用排煙冷空氣,降低了煙氣溫度,減少排煙損失,提高注汽爐效率。
  6. 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測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速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速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫的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解動力學模型,為科學確定反應的閃速解工作溫度范圍及解反應動力學描述,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 )採用復雜溫度場傳學理論對生物質傳過程及充分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解溫度的時間( t ) ,得出了理論推導的充分解時間與最大產油率的解時間相一致的結果,為閃速解反應固相滯留時間設計和測提供了理論依據; ( 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、建立了轉錐式閃速解反應物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速解反應的最小錐角設計、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。
  7. 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負荷和效率低的狀況,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負荷;增輻射管的換面積;修正煙囪高度;換用新型燃燒,變自然通風為強制供風,以增大燃燒的發量,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以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換效果,從而增源對爐壁的輻射傳量和爐管的傳量等。
  8. 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負荷和效率低的狀況,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負荷;增輻射管的換面積;修正煙囪高度;換用新型燃燒,變自然通風為強制供風,以增大燃燒的發量,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以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換效果,從而增源對爐壁的輻射傳量和爐管的傳量等。
  9. The new device usage is before of add the electricity to prepare hot of aging process, in order to let the device s voice into the stable appearance

    材使用之前的的老化過程,以便讓材的聲音進入穩定的狀態。
  10. The invention is characteristic of the process of manufacturing hot water, in which water in multi - stage recirculating water - heating tank for collector and / or multi - stage confluent water - heating tank, as a whole or separately, can be heated by solar energy collector, or a heat pump, or an electrical heater

    其特徵在於,水製作過程可以是經太陽能集、或泵、或電裝置同時或分別對分級式集循環水箱、分級式匯流水箱中的水進行分級的組合,並且,水的製作與水的使用採用分時制,即經周期性分級所制得的定量的先製作后儲存在分級式匯流水箱及儲能水箱中用作下一個周期的分時水供應。
  11. Most air space - heating systems also preheat domestic hot water through an air - to - liquid heat exchanger

    大部分空氣空間?系統也會通過氣水交換家庭里的水。
  12. Simple unfired pressure vessels designed to contain air or nitrogen. part 2 : pressure vessels for air braking and auxiliary systems for motor - vehicles and their trailers

    計用於裝灌空氣或氮氣的不用火的簡單壓力容.第2部分:汽車及其掛車的空氣制動和輔助系統的壓力容
  13. There will appear a very uneven flow field, and appear a very big velocity magnitude distribution and ash concentration distribution near back wall. thus, the velocity magnitude is far bigger than that of optimal design velocity magnitude, which will lead to serious wear and tear in metal face of heater. especially, because of curve structure in front of heat pipe air preheater, there is more serious wear and tear

    由於靠近豎井后墻面的煙氣流速很大,飛灰濃度也較大,斷面速度分佈的最大速度大於最佳設計速度的2 - 3倍,這樣將造成受面的嚴重磨損,特別是管空氣前端煙道的幾何結構有一定的轉角,更增了磨損的程度。
  14. The temperature of oven is never to rise, avoids the hot baking absolutely and still has the voice and word present. when the electricity is cut off suddenly, data is still kept well. air - blower has the function of closing postponing, which can overcome the temperature tolerance. the controller has the function of checking thermocouple, alarming vapor exhaust and mixture volatilizing and checking mistake

    控制掉電停電數據能永久保持控制根據置出爐溫度,自動控制烘箱的循環鼓風機,能有效克服高溫烘烤結束后烘箱內的上下溫差控制自動檢查傳感是否故障,發現傳感存在故障,能自動關閉電源並報警結合劑揮發物水蒸汽排放報警功能數據糾錯功能。
  15. It has automatically pass paper, tow ways prepare the heat, annotate, bottom punching, two ways bottom heating, curling, wind border, marker water line, unload bowls and photo electricity examine, give an alarm when meeting with hitch, account functions etc. jwz - 100 type paper bowl forming machine is an ideal production equipment for the large capacity and big dia cases like soup bowls and instand noodles bowls and so on

    、封合、注油、沖底、二道底部、滾花、卷邊、滾注水線、卸碗以及光電檢測、故障報警、計數等功能,是湯碗、方便麵碗等大容量大口徑碗狀容的理想生產設備。
  16. By improvement on material quality, selection of rational structure, and tight control of quality of manufacture and process indicators in operation, the secondary evaporator - heater has been in operation for three years without any obvious signs of corrosion, and its service life is expected to he more than five years

    通過改進材質、選擇合理的結構、嚴控製作質量和操作工藝指標,二段蒸發經3年多的運行,未出現明顯的腐蝕現象,計使用壽命在5年以上。
  17. The controller assumes no prior knowledge of the thermal characteristics of the heating plant and building. then, a experiment was simulating in malab language and simulink

    Matlab程序的任務是對于源使用過程中的采樣數據進行分析,利用最小方差自校正調節對系統起始時間進行估計。
  18. As an equipment for heating bus, truck and engneering vehicle chamber and preheating engine, oil heaters have been largely used all over the world

    汽車空氣燃油作為客車車室、貨車駕駛室和工程車輛的取暖裝置以及發動機的主要設備,已被國內外廣泛採用。
  19. Based on the heating treatment control system of a spring steel - wire production line in a factory, hubei province, the paper deals with the design of fully automatically monitoring system across its manufacturing process. through research of parameters of temperature control during the period of heating, annealing and tempering in steel wire manufacturing process, the corresponding composite intelligence fuzzy controller is designed. in light with the way of fast heating, a composite intelligent fuzzy controller combined with on - off control & pi control is set up

    本文以湖北某鋼絲繩廠彈簧鋼絲處理生產線控制系統為依託,論述了整個生產過程的監控系統的設計,通過對該類鋼絲生產中的快速過程、退火、回火等過程中的溫度控制參數的研究,設計了相應的智能型復合模糊控制,根據快速過程的實現方式,對于快速反應的被控對象,給出了以模糊控制為基礎的結合開關控制、 pi控制的快速升溫,且不超調的一種智能型復合模糊控制,對于退火、回火等工藝過程,採用電方式,該類工藝過程作為控制對象屬于具有純滯后的大慣性系統,作者設計出模型測自適應模糊控制,並對所設計的控制進行計算機模擬實驗,取得了滿意的效果。
  20. 5. combining internal model control method with smith predictor and single neuron controller, a neuro - pid internal model control method for time - delay systems is put forward. the real - time temperature control result of the electrical furnace shows that the control performance is very good

    將內模型控制與smith估控制相結合,並引入單神經元控制,提出了時滯系統神經元自適應pid內模控制方法,並將其應用於電爐的溫度控制,取得了較好的控制效果; 6
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