漏損點 的英文怎麼說
中文拼音 [lóusǔndiǎn]
漏損點
英文
leak-off point-
After analyzing the merits and shortcomings of the current methods for leak hunting of municipal water supply network and inducing the reasons that cause the pipe leakage, this thesis pointed out that the water supply network should be evaluated synthetically by means of reliability theory
本文分析了現有給水管網檢漏方法的優缺點，在歸納了導致管道漏損的各種原因的基礎上，指出應該利用可靠度理論對管網進行綜合評價。A nondestructive system for monitoring broken wires in production line was designed, which based on the magnetic character of locked coil wire rope
根據密封鋼絲繩的結構特點，採用漏磁檢測技術，研製了一套斷絲在線無損檢測系統，能對密封鋼絲繩生產過程中出現的斷絲現象進行有效監測。The second chapter simply introduces the development of alternate asynchronous inverter technology and retrospects some types of energy - saving systems for hydraulic elevators. then the working principles of the project are discussed and analyzed at four different working status, i. e. light load upwards, heavy load upwards, light load downwards and heavy load downwards. and the chapter focus on the introduction of structure design of pump station, calculation and type selection of pump / motor reversible units, research on oil leakage principles of accumulator circuit, design of accumulator - pump / motor pressure - energy transformer and integrated valve blocks, etc. the last but not the least, the electrical wiring of vector inverter control cabin and design of computer control and data acquisition system are introduced
論文第二章首先簡單介紹了交流異步電動機變頻調速技術的發展概況，在回顧電梯液壓控制系統節能技術的基礎上，介紹了本課題研製的「採用蓄能器的液壓電梯變頻節能控制系統研究」的基本原理，分析了動力系統在電梯轎廂輕載上下行、重載上下行等四種典型工況下的基本工作狀態和工作方式；詳細地介紹了本課題節能系統液壓動力泵站的結構設計和參數設計，重點研究了液壓動力泵站的結構設計、液壓泵馬達可逆性問題及其選型設計計算、蓄能器迴路泄漏油損失機理的研究及其補償裝置的設計、蓄能器-泵馬達壓力能量轉換裝置的設計、多功能集成控制閥組的設計等內容；最後簡單介紹了本課題矢量控制變頻控制櫃的外部附件電氣接線、計算機控制及數據採集系統的硬體設計等內容。The working process in the new sliding vane compressor is simulated. according to the characteristic in all leakage and friction positions mathematical models for the leakage and friction losses are established
還對這種新型壓縮機的工作過程進行了模擬，依據各泄漏和摩擦損失部位特點，建立了泄漏和摩擦損失數學模型。Therefore, the fluid sound propagation of the leakage pipes is studied, according to the acoustic impedance characters
文中從聲學的角度出發，分析了漏損點的聲阻抗特性，並對漏損管道內流體的聲傳播進行了研究。Precise locating needs to detect the acoustic signal of the pipe leaks that has close relationship with the acoustic impedance of the leaks
準確定位漏點須對漏損管道的聲信號進行研究，而漏損管道的聲信號與漏損點的聲阻抗密切相關。The principle and design scheme are described, the corresponding experimental research is conducted and application foreground of the rotary - switching regenerator is analyzed the result indicates that rotary switching regenerator has the advantages of continual gas supply, low leakage rate, low pressure drop and compact equipment
研究結果表明檔位蓄熱器具有以下特點：可實現對爐窯的連續供氣，保證了爐內火焰的穩定性，從而使爐內工況不易波動；另外系統的漏風率較低，阻力損失也較低，並且設備緊湊、操作安全可靠，易於實現標準化生產。By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source
通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。Abstract : the causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %
文摘:分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上The causes for low efficiency of the heater in no. 2 crude unit of jpc refinery are described and analyzed including water leaking of steam soot blower, dew point corrosion caused by steam, soot deposits in convection chamber owning to poor soot blowing, high flue gas temperature, no heat recovery of flue gas, and poor performance of insulation lining, etc. by using sonic soot removing system, flue gas recovery system, spray coating of fiber and rock wool, as well as adjustment of flow scheme accordingly in the technical revamping. the dew point corrosion is completely eliminated, the insulation performance is improved, the heat loss is reduced by 1. 25 %, the flue gas temperature is reduced to about 170, and the heater efficiency is increased from 83 % to more than 90 %
分析了金陵石油化工公司煉油廠二套常減壓裝置加熱爐存在的因蒸汽吹灰器漏水，蒸汽引起露點腐蝕及吹灰效果差造成對流室積灰，排煙溫度高，煙氣熱量未回收利用以及爐子保溫襯里效果差等問題，提出採用聲波除灰系統、煙氣回收系統、纖維噴塗和巖棉噴塗及相應的流程調整等改造措施.測定結果表明，本次技術改造解決了因蒸汽吹灰器漏水所造成的露點腐蝕問題，提高了保溫效果，減少散熱損失1 . 25 % ，排煙溫度降至170左右，裝置的爐效率由83 %左右提高到90 %以上Low pressure will cause missing and rough edge, and high pressure or soft squeegee will cause speckle print even damage the squeegee or stencil
刮板壓力低造成遺漏和粗糙的邊緣，而刮板壓力高或很軟的刮板將引起斑點狀的印刷，甚至可能損壞刮板和模板或絲網。The system differentiates between background losses at joints and fittings and larger scale bursts, and enables operators to quickly localize leaks, deploy maintenance teams, track maintenance status, and access essential zone criteria and data by remote
該系統可以區分在管道連接處的滲漏和更大規模的爆裂之間的損失，使得操作員迅速定位滲漏地點，組成維修隊，跟蹤維修情況，以及遠程訪問基本的地域標準和數據。The solution is based on abb ' s award - winning system 800xa automation platform and includes the wlms and power generation information management ( pgim ) software, the expansion of an existing abb scada system with 800xa and ac800m controllers, magmaster electromagnetic flow meters, and ctu800 - cpe remote terminal units
該系統可以區分在管道連接處的滲漏和更大規模的爆裂之間的損失，使得操作員迅速定位滲漏地點，組成維修隊，跟蹤維修情況，以及遠程訪問基本的地域標準和數據。The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。The numerical simulation and experimental research made on the characteristics of the clearance cavitations in kaplan turbine are described herein ; in which the analysis mainly is concentrated on the characteristics of leakage - vortex caused by the flow of the clearance between blade tip and blade chamber, that occurs at the front - pressure side of the blade, and the intensity of the secondary - flow - vortex ; furthermore, the relationship in between the leakage - vortex, secondary flow vortex, cavitations and erosion are analyzed as well
摘要對軸流轉槳式水輪機輪緣間隙流動及空化特性進行數值模擬和試驗研究，重點分析輪緣間隙流動在正面頭部泄漏流動所引起的泄漏渦帶、二次流動的漩渦強度和空化特性，以及泄漏渦帶旋轉、二次流動的漩渦與空蝕和磨損之間的關系。The influence of several factors such as non - perfect regeneration, finite - rate heat transfer, internal irreversibilit y of the working substance, heat leak loss between the heat reservoirs, heat transfer laws and the quantum degeneracy on the performance of thermodynamic cycles is studied
重點分析非理想回熱、有限速率熱傳遞、工質的內不可逆性、熱源間的熱漏損失、熱傳遞定律和量子簡並性等各種不同因素對熱力學循環性能的影響，從而獲得一些新穎的結論。Abstract : the general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
文摘:簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。Combined with the research project of the advanced performance of wire rope in the port cranes, a key technological problem of the ministry of communications, this dissertation investigated the stress - effect on the magnetic flux leakage ( mfl ) of wire ropes and the law of the mfl signal changes during wire rope fatigue testing by experiments and modern signal processing methods based on the ferromagnetic theory, being aimed at the present problems of current wire rope testing technology. the characteristic parameters and quantitative descriptive specifications for wire rope defective signal were analyzed in detail. this dissertation present a novel method of quantitatively evaluating locate faults ( lf )
本文結合交通部重點科技項目「港口起重機鋼絲繩傳動件的高性能技術研究」 ，針對當前鋼絲繩電磁檢測技術中所存在的問題，以鐵磁學為理論基礎，以試驗和現代數字信號處理技術為手段，對鋼絲繩漏磁信號的應力效應、鋼絲繩疲勞損傷歷程中的漏磁信號變化規律做了深入的研究，對鋼絲繩缺陷信號的特徵參數和缺陷的定量描述指標做了詳細的分析，提出了一種局部缺陷的定量逼近方法。4u series potato harvester is mainly used for harvesting potato, garlic, sweet potato, peanut and other crops under the ground with the merits of high efficiency, lower breakage, running fast without trembling, no blocking by the grasses, the structure is simple and the operation life time is long, etc
天盛機械製造有限公司生產的4u系列土豆收獲機主要用於收獲土豆、大蒜、地瓜、花生等地下根莖農作物.具有收獲效率高、破損率低、運轉輕快無震動、不堵草、漏土快、結構簡潔、使用壽命長等特點。This paper, according to the characteristic and requests of measurement for the medium loss of electric capacitive equipment and the resistive weight of moa leak current in a power substation, according to the on - line monitoring principle and implementing scheme of electric equipment in substation relying mainly on the means through the software analysis, finish the design and the fabrication of monitoring system hardware and software, and then empolder the on - line monitoring equipment fitting for the 220kv substation of dazhuling in chongqing, have finished the installation, debugging and the data analyzing of the running device
本文針對變電站電容性設備介質損耗和moa泄漏電流阻性分量測量的特點和要求，按照以軟體分析為主的變電站電氣設備絕緣在線監測的原理和實施方案，完成了監測系統硬體、軟體的設計、製作並開發了適合於重慶大竹林220kv變電站電氣設備絕緣的在線監測裝置，完成了裝置的安裝、調試和運行的數據分析。分享友人