泵的迴路 的英文怎麼說
中文拼音 [bèngdehuílù]
泵的迴路
英文
pump bypass-
In order to apply esd to practical engineering, the author develops computer - aided events sequence diagram system ( caesds ). taking the power failure of spaceship cooling circuit drove pump as an example, this thesis uses the improved esd method and the esd model constructed by caesds, drawing a conclusion that the improved method and caesds is valid in manned spaceflight risk assessment
並以飛船冷卻迴路驅動泵電源故障為例,綜合運用改進的esd方法,利用caesds對其建立esd模型,最後分析得到結論,說明了改進的方法和caesds在載人航天安全性風險評估中的有效性。The machine is circumgyration drilling machine that the rotary drives drilling tool to bore by rotation, adopts full hydraulic pressure drive, constant power loop, wheel cylinder startup, oil cylinder disappear ing end bumper, electrohydraulic combined control, steel wheel traveling and disassembly transport
該機是由轉盤帶動鉆具旋轉鉆進的回轉鉆機,採用全液壓驅動,恆功率迴路,分泵啟動,油缸升降,電液復合操縱,鋼輪行走,解體運輸。Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system
雙恆定運行方案是船用壓水堆核動力裝置的理想運行方案.在這種運行方案下,當裝置穩態功率變化時,冷卻劑平均溫度與蒸汽壓都保持不變,與通常採用的冷卻劑平均溫度恆定運行方案相比,有效地改善了核動力裝置的總體運行性能,特別是在低負荷運行時,可以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件,這對于提高船用核動力裝置的運行可靠性和安全性具有實際意義Safety device containing an audible alarm will break the circuit automatically when the pump is overloaded, temperature overheats or there is a shortage of oil or water
設想周到的各種電子保護裝置,如無熔絲開關,缺水或缺油,溫度異常及泵浦過負荷等自動警示系統,迴路能自動切斷,確保安全。Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,並提出了相應的改進方法。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。According to the concrete request of the test pump, this close test circuit project of the high pressure pump platform is made out
根據被試泵的具體要求,制定了高壓泵實驗臺的閉式實驗迴路方案。In the third chapter, the mathematical models of project system have been established, and simulation has been done on the simulink enviroment of matlab software kits. the simulation focus on the effects of main parameters on the dynamic characteristics of speed control system, and the main parameters include viscosity damp coefficient and friction torque of electrical motor shaft, internal leakage coefficient of pump / motor of hydraulic circuits, gas volume of pressure accumulator, viscosity damp coefficient of cylinder piston and different running building floors, etc. at last, theoretical research effects of the flow and pressure pulsation of pump / motor on car speed and oil volume leakage theory are discussed. the fourth chapter of this thesis concerns the research on the key items about hydraulic power control system according to the ens 1 - 2 and other hydraulic elevator standards
論文第三章針對組成系統的各個模塊進行了機理建模,並且通過matlab軟體中的simulink圖形化模擬環境進行了本課題系統的模擬研究,主要針對影響系統特性的主要參數變化,動態分析系統的輸出特性,在上下行工況中,分析了電機軸系粘性阻尼系數、軸系摩擦力矩、主迴路蓄能器迴路液壓泵馬達內泄漏系數、蓄能器氣體容積、液壓缸柱塞粘性阻尼摩擦系數以及不同運行樓層工況等參數對系統特性的影響;最後對軸向柱塞泵馬達的流量壓力脈動對電梯轎廂速度的影響和蓄能器內油液體積損失機理進行了理論研究。The clear, environmentally safe cooling fluid eliminates clogging, associated maintenance and premature failure commonly associated with “ pumpage - cooled ” motors and makes this system the most cost effective when considering overall operating costs
清潔的、環保的冷卻液體排除了堵塞的可能,考慮到「泵冷卻」電機所相關的維護費用和老化故障成本,這種閉合迴路系統的總體運行成本就低得多了。Abstract : this paper mainly introduces the composition of the powerplantmodule hydraulic loop of the combinable full trailer, analyzes the pressure distribution and calculates the pressure of hydraulic suspension system with fullload, and on the basis of the above analysis, we have chosen the model of hydraulic pump and diesel engine
文摘:主要介紹組合式全掛車動力機組液壓迴路組成,對滿載時的液壓懸掛進行受力分析和工作壓力計算,並以此為依據對液壓泵和柴油機進行選型。Rms simulation software is designed not only to simulate a single radioactive accident but also to simulate any radioactive accidents combination. by inserting the faults of detectors, front end computers and sample loop plants ( pumps and valves ), rms software can meet the need of simulator training
模擬軟體設計成可以模擬單一放射性事故,也可以模擬任意幾個事故的組合,並配合加入相應的探測器、前端機、取樣迴路設備(泵和閥)的故障, rms模擬軟體可以滿足模擬器培訓的要求。Influence of pump isolation mounts on the shock response of the loop systems
循環泵隔振對迴路系統沖擊響應的影響The engineering drilling machine of kp2500 type is a species of full hydraulic pressure rotating plate - drilling machine developed by our company newly, this drill adopts full hydraulic pressure drive, con stant power variable loop, wheel cylinder startup and electrohydraulic multiple operation, the drill can adjust torque according to stratum situation and reduce pressure to deep drilling automatically
Kp2500型工程鉆機是我公司最新研製的一種全液壓轉盤式鉆機,該機採用全液壓驅動,恆功率變量迴路,分泵起動,電液復合操作,鉆機能夠根據地層情況調整扭矩和減壓自動鉆進。In this paper, through analyzing and discussing current development of typical hydrostatic drive system of crawlers at home and abroad, it studies property - matching of hydrostatic transmission systems, provides an electronic proportional controlling variable displacement pump - motor hydraulic drive circuit and control plan fit for crawlers " operation, together with typical travel drive system component
本文對國內外推土機行駛靜壓驅動系統研究現狀進行了分析和綜合,對靜壓行駛驅動系統的性能匹配進行了分析,結合典型行駛驅動系統的組成、工作原理提出了適合推土機工作的電比例控制變量泵-變量馬達液壓驅動迴路及其控制方案。The linking - passage - way hydraulic circuit of the pumping hydraulic system of the concrete pump
混凝土泵泵送液壓系統的連通迴路分享友人