預熱電流 的英文怎麼說
中文拼音 [yùrèdiànliú]
預熱電流
英文
preheat current- 預 : Ⅰ副詞(預先; 事先) in advance; beforehand Ⅱ動詞(參與) take part in
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
-
Adopted unique ventilation system and rotational direct current motor stabilize the hot airflow
採用獨特的導風系統及旋轉式直流電機,恆定預熱風量。Adopted unique ventilation system and non - carbonate direct current motor stabilize the hot airflow
採用獨特的導風系統及無碳刷直流電機,恆定預熱風量。In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa
本文設計出三種樣品預構件,研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程,弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別,以證實特殊的電場和磁場是否對原子的擴散有推動作用,揭示脈沖大電流加熱條件下原子的擴散過程,探索脈沖大電流熱加工技術快速高效的原因。After which, the battery will be charged by large constant current to allow the fast charging. finally, the constant voltage charging is adopted to guarantee the battery was charged to its full capacity. under the condition that the temperature has raised to a certain threshold at the constant current charging stage, the over temperature circuit is performing and it provides a compensation current which switches the system to constant temperature charging mode with the intention of protecting the ic
即在充電初期採用較小的電流對電池進行預處理,對出現過放電的電池進行修復和保護;然後採用較大的恆定電流對電池充電,實現快速充電的目的;最後採用恆定壓充電,確保電池充滿;在恆流充電階段,當晶元溫度上升到一定程度時,晶元過熱保護電路開始工作,該電路以提供充電補償電流的形式使充電進入恆溫充電模式,對晶元進行保護。The process parameters of electric upsetting include : velocities of upsetting cylinder and anvil cylinder, heating current, preheating length and time, etc. because different materials have different mechanical, electric and thermal characteristics, and there are effects between different parameters, the determination of those parameters becomes a complex problem
電熱鐓粗成形過程的工藝參數主要包括鐓粗缸活塞運動速度、砧子缸活塞運動速度、鐓粗壓力、加熱電流和預熱長度等。這些參數的選擇是一個復雜的問題,其復雜性不僅在於不同的材料具有不同的力學、電和熱傳導特性,而且各參數相互影響、相互制約。The ideology and experience regarding design of large capacity w flame units in foreign countries should be further acknowledged, this can be an example for us to draw a more reasonable rules and methods of calculation. in this thesis, the systematic numerical simulations were conducted for w flame boiler furnace
針對邯峰電廠的660mw機組w型火焰鍋爐的特點,編制和完善了爐內熱態流動及燃燒模擬程序,並進行了全面的爐內過程數值計算,得到了鍋爐爐膛內的溫度分佈和速度分佈,對鍋爐性能進行了預報。( 3 ) according to the study of heat treatment process, heat treatment ambience, airflow and heat treatment temperature were considerd as the important influences on the quality and property of ybco films. through optimizing the process, the ybco films were prepared on sto single crystal, and their room temperature resistance was about 200 ybco films also were fabricated on the sto buffered si substrate, and their room temperature resistance was about 300d
( 3 )根據本文熱處理過程的工藝探索,認為熱處理氣氛、氣流量及處理溫度是影響薄膜質量及性能的重要因素,通過優化工藝過程,在鈦酸鍶( sto )單晶上制得的ybco薄膜表面質量良好,室溫電阻200左右;而在預制了鈦酸鍶( sto )緩沖層的si基板上制備的ybco薄膜的室溫電阻為300左右。The optimum intervals between the two pulses is about 1. 7 in our simulation which is much longer than the commonly cited value 1. 5. 3. in the sm - lwfa simulation, we turned our attention to the wakefield generation and electron acceleration driven by the " self - modulated instability " and " side stimulated raman scattering "
我們首先提出「三角脈沖激發尾流場加速電子」的方案,利用「三角脈沖」平緩的上升沿激發「受激raman散射」預加熱電子,其陡峭的下降沿激發尾流場可以使更多的電子被「捕獲」 。The system can simulate the transfer process of photo - thermal and thermal - electric at a given parameter setting of structure, environment and circuit. on the basis of circuit structure, the calibration, parameter adjusting and signal readout can be simulated, the vary process of readout circuit, readout voltage, optical gain, optical gain rate, and uniformity can be given. in addition, all kinds of character parameters of device can be forecasted
本論文根據umbirfpa的原理,建立它的軟體模擬系統,它可以根據給定的結構、環境、電路設置等參數首先模擬光熱、熱電轉換過程,並可根據電路結構,模擬校準、參數調節並讀出信號,給出讀出電流和電壓、光學增益、光學增益比、非均勻性等各特徵量的定量變化過程,預測製成后器件的各種性能參數。On - line monitoring of hvcb is the precondition of predicting maintenance, is the key element of reliable run, and is the important supplement to the traditional off - line preventive maintenance in fact, the faults are made by hvcb, no matter in number or in times, is over 60 % of total faults so it has determinative importance for improving the reliability of power supply and this can greatly decrease the capital waste used by - dating overhaul in this paper, the inspecting way of hvcb mechanism characteristic is discussed the concept of sub - circuit protector is presented, the scheme that we offered has been combined with sub - circuit integrality monitoring theory, to ensure that it has the two functions as a whole according the shut - off times at rated short circuit given by hvcb manufacturer, the electricity longevity loss can be calculated in each operation, and the remained longevity can be forecast too an indirect way for calculating main touch ' s temperature by using breaker shell temperature, air circumference temperature and breaker ' s heat resistance is improved in this paper, and main touch resistance can be calculated if providing the load current msp430, a new single chip microcomputer made by ti company, is engaged to develop the hardware system of the on - line monitoring device, and special problem brought by the lower supply voltage range of this chip is considered fully
高壓斷路器所造成的事故無論是在次數,還是在事故所造成的停電時間上都占據總量60以上。因此,及時了解斷路器的工作狀態對提高供電可靠性有決定性意義;並可以大大減少盲目定期檢修帶來的資金浪費。本文論述了斷路器機械特性參數監測方法;提出了二次迴路保護器的概念,並將跳、合閘線圈完整性監視和二次迴路保護結合起來,給出具有完整性監視功能的二次迴路保護器實現方案;根據斷路器生產廠家提供的斷路器額定短路電流分斷次數,計算每次分閘對應的觸頭電壽命損耗,預測觸頭電壽命;提出根據斷路器殼體溫度和斷路器周圍空氣溫度結合斷路器熱阻來計算斷路器主觸頭穩態溫升的方法,並根據此時的負荷電流間接計算主觸頭迴路的電阻;在硬體電路設計上,採用美國ti公司最新推出的一種功能強大的單片機msp430 ,並充分考慮該晶元的適用電壓范圍給設計帶來的特殊問題;在通信模塊的設計中,解決了不同工作電壓晶元之間的介面問題,並給出了直接聯接的接線方案。The design of cable dome is divided into three parts : pre - stressed calculation, static load applied calculation and variation load applied calculation. ansys software was adopted to compute the structure. the ansys program has many analysis capabilities, ranging from structural analysis, thermal analysis, electromagnetic field analysis to cfd flotran analysis
索穹頂結構分下述三個狀態進行計算:預張拉狀態、施加屋面恆載時的計算和屋面活荷載作用下的計算;本文對索穹頂結構進行計算時所選用的計算軟體為ansys軟體,它是融結構、熱、流體、電磁、聲學於一體的大型通用有限元分析軟體,可廣泛應用於核工業、土木工程、地礦、水利等一般工業的計算及科學研究。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,熱水製作過程可以是經太陽能集熱器、或熱泵、或電加熱裝置同時或分別對分級加熱式集熱器循環加熱水箱、分級加熱式匯流熱水箱中的水進行分級加熱的組合,並且,熱水的製作與熱水的使用採用分時制,即經周期性分級加熱所制得的定量的熱水預先製作后儲存在分級加熱式匯流熱水箱及儲能水箱中用作下一個周期的分時熱水供應。Subcircuit models are designed and simulated, which includes bias current source, voltage reference, error amplifier, pwm comparator, driver circuit, protection circuits for over - temperature, over - current. at last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement
並對集成電路內的各個模塊包括電流偏置電路、基準電壓電路、誤差放大電路、三角波振蕩發生電路、 pwm比較電路、驅動電路、過熱保護電路和過流保護等進行了具體的設計和模擬,並對整體應用電路進行了模擬,結果均達到了預先設定的指標。Thermal evaluation of insulation systems for ac electric machinery employing form - wound pre - insulated stator coils, recommended practice for
採用模繞預絕緣定子線圈的交流電機絕緣系統的熱量評定推薦規程To the concrete two - phase flow - crude oil, its temperature, speed and capacitance value are measured by flat capacitance sensors, fluke rlc instrument and other auxiliary appliance. assessing the characters of crude oil and predicting the solidifying point is the result of using fuzzy information arithmetic
針對具體的兩相流? ?原油,用平板電容器、 fluke精密電橋和其它輔助傳感器分別測取了原油的熱處理溫度、降溫速率和電容值,利用模糊信息融合演算法對測量值進行處理和尋優,從而進行原油熱處理的綜合評定和凝點的在線預測。At present, the revolving type air preheater, with its prominent advantage, is the most popular air preheater applied in power station
容克式(回轉式)空氣預熱器是目前大型火電鍋爐最流行的空氣預熱設備,具有很多顯著的優勢。This system is utilized the programmable controller ( plc ) bearing of substitution rule ( the figure is apparent the form, writing instrument, individual loop controller, the hand is holded the utensil and is reached to assist the bearing unit and await ), achieve the 29mw ' s cycle stream of water warmhearted water boiler, oxygen remover, warmhearted net system control system together with monitoring voluntarily of electric section together with control being living, the rule to call off greats quantity displays the bearing in that system, boiler, oxygen remover, the warmhearted net operation is achieved crt and is supervised completely, manipulates personnel staff is living inner place the control cabin completely completees failure - free operation and trouble removal operation. the predictive target of putting ino production queen is the boiler, oxygen remover, the warmhearted net is achieved comprehensive self - regulation, moreover be able to be over a long period of time, steady secure operation
本系統利用可編程式控制制器( plc )替代常規的儀表(數顯表、記錄儀、單迴路控制器、手操器及輔助儀表裝置等) ,實現29mw循環流化床熱水鍋爐、除氧器、熱網系統控制系統與電氣部分的自動監測與控制。在該系統中取消大量的常規顯示儀表,鍋爐、除氧器、熱網的運行實現crt全面監控,操作人員在控制室內全部完成正常運行及事故處理操作。投產后的預期目標是鍋爐、除氧器、熱網實現全面自動調節,並能長期、穩定、安全運行。Pump system designers and end - users should consider both motor overheating and prevention of " vortexing " ( inadequate suction conditions ) when designing systems and specifying non - clog submersible pumps, regardless of the preferred pump manufacturer ( s )
無論選擇哪家泵製造商,在設計泵系統和配置無堵塞潛水泵時,泵設計師和最終用戶都應該考慮電機過熱和「渦流」預防兩個問題。Using field emission cathode, x ray source can be made with several advantages : smaller volume and brighter, high frequency response, in - time turning on, etc. considering of the merits and potential markets, researching and fabricating miniature x - ray source is meaningful
由於突起數目大且尖端頂端電場強度高,因此產生很大的場發射電流密度。採用場發射陰極的x射線光源具有體積小,輻射強度高,頻率響應快,可以隨時開啟,無需預熱的優點。In many cases it will be found that the minimum recommended submergence to prevent vortexing will be equal to, or greater than, the minimum submergence required to prevent overheating
多數情況下,人們會發現所建議的預防渦流的最小潛水深度會等於或大於預防電機過熱的最小潛水深度。分享友人