排氣壓氣機 的英文怎麼說
中文拼音 [bèiqìyāqìjī]
排氣壓氣機
英文
exhaust compressor-
Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比;通過提高壓縮比來彌補動力性的損失;以動力性為主控目標,對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節;通過空燃比的合理控制,直接改善發動機的動力性、經濟和排放指標;作為對缸內燃燒過程的理論分析,進行了燃燒特性的實驗測試;對原汽油機和新開發的液化石油氣發動機,進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。Many of the difficulties just described are avoided by the use of an auxiliary ejector and an engine exhaust diffuser which are placed in tandem.
利用直列放置的發動機排氣擴壓器和輔助引射器,可以避免上述許多困難。Experimental studies on s1a - 02 gas turbine with water injection into compressor interstage / inlet as well as that on turbocharger self - loop test rig with inlet water injection are introduced. test results are in good accordance with simulation results, wet compression can lower compression work and increase engine power output so engine performance is enhanced, if engine power output is not changed, efficiencies of compressor and this engine become higher and turbine inlet temperature and fuel consumption become lower and if keeping t4 the same as that before wet compression is used, efficiencies become furthermore higher and engine power output increases greatly
實驗結果和計算結果同樣表明:濕壓縮減少了壓氣機所消耗的壓縮功,增加了燃氣輪機的輸出功率,提高了燃氣輪機性能,如果保持發動機輸出功率恆定,濕壓縮可以提高壓氣機和整個燃氣輪機機組的效率,與此同時,渦輪進口溫度t _ 3 ~ *和燃油消耗率下降;如果保持渦輪排氣溫度t _ 4 ~ *恆定,壓氣機和燃氣輪機機組效率進一步提高,燃氣輪機輸出功率增加。Performance test code - compressors and exhausters
性能測試規范.壓縮機及排氣機Performance test code on compressors and exhausters
壓縮機和排氣器的性能測試規范Irrespective of disconnection of a fan, control of the exhaust steam pressure, must be maintained
必須保持風機不被無端的斷開,排氣壓力在控制之下。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。After the ventilator is started, the dust catcher is under negative state and will absorb air with dust in the ductwork to the case on the dust catcher, then the air current will enter into the upper side of filter bag flowing from upper side to lower part ; most of the dust will come out from the filter bag under function of gravity and inertia and then fall into the lower case ( ash hopper ), then the clean air will enter into the air via ventilator
當通風機啟動后,除塵器便處于負壓狀態,並將余風管中的含塵空氣吸入到除塵器上箱體內,然後氣流進入濾袋上口自上而下流動,多數粉塵顆粒在重力和慣性力的作用下穿出濾袋下口,沉降至下箱體內(灰斗) ,被濾的凈化氣體經通風機排入大氣中。Emission characteristics of direct injection natural gas engine using rapid compression machine
用快速壓縮裝置研究直噴式天然氣發動機排放特性In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律,並耦合進氣畸變的影響,同時與壓氣機氣動性能和氣動穩定性相關聯,作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機( lsc )試驗器,採取在靜子葉片表面埋入動態壓力傳感器的實驗方法,對葉尖、葉中和葉根三個截面的動態壓力進行了測量,獲得了大量的可靠的實驗數據。Touch on developing large - flow and high - pressure ratio impressor and large - enthalpy drop turbine, reducing harmful emission, solving the major problems of high - temperature blade material, cooling, protective coating and single - grain blade casting, and comfirm some important manufacturing techniques
涉及了開發大流量高壓比壓氣機、大焓降渦輪,降低有害排放量,解決高溫葉片的材料、冷卻、保護塗層及單晶葉片鑄造等主要問題,並確認了一些關鍵的製造技術。Been bearing hong kong, platform, overseas processing production in the mainland of foreign firm of trade company all the time for many years, especially such whole and single oems as air compressor, air cleaner, desiccator, draining off water device, etc. are processed and exported, hope to receive the trust and cooperation of travelling traders
多年來一直承擔港、臺、海外商家洋行在大陸的加工生產,特別是空氣壓縮機、空氣過濾器、乾燥機、排水器等整單的oem加工出口,希望得到廣大客商的信任和合作。The experimental results show that the unsteady flow frequency domain performances of the axial flow compressor will be varied with mass flow, rotating speed, blade row spacing and inlet distortion
實驗結果表明,工作流量、工作轉速、動?靜葉排軸向間距以及進氣畸變均對壓氣機的非定常頻譜特性產生影響。Petroleum and natural gas industries - rotary - type positive displacement compressors - part 1 : process compressors oil - free
石油和天然氣工業.旋轉式正排量壓縮機.第1部分:加工壓縮機Petroleum and natural gas industries - rotary - type positive - displacement compressors - part 2 : packaged air compressors oil - free
石油和天然氣工業.旋轉式正排量壓縮機.第2部分:封裝空氣壓縮機The products are widely used in assembling of air compressor, well pump, building automatic water supply and sewage system, countryside automatic equipments and other automatic machines, whose motors have to be protected
被廣泛應用於空氣壓縮機、潛水泵等機電設備的配套,也適用於樓宇的自動供水及排污工程、農村的各種電動設備及其它需要對電機進行保護的應用場合。Nasa - 37 transonic and nwpu - 1 subsonic rotors are calculated by using this program. results of calculation indicates that this program can admirably simulate rotor rows flow in axial compressors and distinguish passage shock, leakage vortex path and separation of boundary layer
用該程序分別計算了nasa - 37跨音速轉子和nwpu - 1亞音速轉子,計算結果表明本文建立的孤立轉子程序能夠較好的模擬軸流壓氣機葉片排內流動情況,能夠有效的捕捉通道激波和間隙泄漏渦軌跡以及葉片附面層的分離。If keeping compressor ' s rotating speed unchanged, wet compression can increase compressor discharge pressure and lower exit temperature at the same time
在保持壓氣機轉速一定情況下,壓氣機排氣壓力升高,與此同時排氣溫度下降。By using a reynolds - averaged two - dimensional computation, the effect of upstream wake on unsteady separated flow field of downstream adjacent vanes was investigated in low - speed axial compressor
摘要利用二維數值模擬研究了低速軸流壓氣機上游尾跡對下游相鄰葉排的非定常分離流場的影響。To analyze the pressure waves in the exhaust pipes and the influence of the catalytic converter, new simulation software has been developed by the author on the base of mk14, which is a powerful tool in developing exhaust system with catalytic converter. its principle and the method to use are explained. the numeral models for engine simulation are simplified in the paper
為分析摩托車排氣壓力波的構成與變化、也為分析催化轉化器在排氣系統中對整體設計的影響,借鑒目前常用的幾種模擬計算軟體,結合特徵線理論,在mk14程序的基礎上開發了以進、排氣系統為主的發動機模擬計算系統( escs ) ,該程序是加快設計周期的有力工具。分享友人