重型泵 的英文怎麼說
中文拼音 [zhòngxíngbèng]
重型泵
英文
heavy duty pump-
The clothing companies such as salong, yinghe, hengfeng, the shoe companies such as yinghua and weiyang, the guanhua leather products company and the xijie suitcase company produce down jackets, jackets, children s clothes, snow shoes, sports shoes, cloth shoes, galoshes and various suitcases etc which sell well in the international markets
有生產企業30多家，多個產品獲得全國單打冠軍。產品銷往全國各地的煤礦鋼鐵熱發電化工等大中型企業，並形成了完整的銷售網路。現重點引進電機電器液壓泵閥等液壓元器件配套項目和大型液壓工程成套設備。It has important significance to probe and master in theory the dynamic characteristic during suspending period in improving the pumping stations designing, reducing the investment and ensuring the safe and reliable operation of pumping systems. - in this paper, a theoretical study was made on the dynamic characteristics of a large low - lift pumping system within suspending period
停泵動態特性是大型低揚程泵、泵裝置、泵站重要運行特性之一，但其研究成果卻很少，不適應實際工程要求。從理論上探求和掌握大型低揚程泵站停泵動態特性，對于提高泵站工程設計水平，降低工程投資，實現科學管理，保證泵系統、泵站安全可靠運行具有十分重要意義。On the other hand, by meticulous diagnosis functions, such as signature analysis, trend analysis, spectrum analysis, the fault classification, position, severity and trend about the high - pressure getting rid of squama while running can be discovered and forecasted
另外，該系統的精密診斷功能，包括歷史數據回放分析、趨勢分析、時域分析、頻譜分析，能對水泵的故障類型、部位、嚴重程度以及發展趨勢進行分析和預測。The increase in fatigability of high - frequency tetanic contraction in unloaded soleus ( sol ) may be related to the changes in sarcolemmal na +, k +, or l - type ca2 + channels and na + - k + atpase
模擬失重萎縮比目魚肌（ sol ）高頻強直收縮的疲勞性增加，其機理可能涉及肌纖維膜與t管na ~ + 、 k ~ +通道、 na - k泵和l型鈣離子通道的功能的改變。Purchases during the year included one 52 - metre computer - controlled turntable ladder, two reserve heavy pumps, three low - profile hydraulic platforms, one mobile casualty treatment centre, three mobile command units, six lighting tenders, 10 hose appliances, 15 light rescue units, two diving tenders, two canteen vans and nine mini trucks. the department is building a high - performance fireboat and a diving support vessel. the new fireboat will replace the existing fireboat
年內，該處添置了一部電腦控制的52米雲梯、兩部重型泵車、三部升降臺、一部流動傷者治療車、三部流動指揮車、六部燈車、十部消防喉車、 15部輕型搶救車、兩部潛水裝備供應車、兩部膳食供應車及九部小型消防車。Abstract : with a view of time - varying characteristic of the v ibration signal measured on reciprocating machinery and a brief introduction to the wavelet analysis and a nonlinear wavelet denoising theory, the paper makes an approach, by taking an triplex pump widely used in heavy machinery as an exa mple, on the waveform feature extraction which reflects the various conditions o f reciprocating machinery with nonlinear wavelet denoising analysis method
文摘:針對往復機械振動信號的非平穩時變特點，本文在簡述小波分析及非線性小波消噪理論的基礎上，以重型機械使用的三缸泵為例，研究了用非線性小波消噪方法提取往復機械狀態下的波形特性。The key items include the car sinking, constant speed characteristics, inspection function, auto relevelling function and level accuracy, etc. the research contents focus on the following three parts : firstly, research on effects of system parameters on car sinking has been completed. secondly, the constant speed performance with the compensation of internal leakage of pump / motor is improved. lastly, research on improvement of the car level accuracy and contrast to that of traction elevators is presented, and the reasons of low car level accuracy of hydraulic elevators are discussed
重點研究了三方面內容：一是研究了停層沉降特性及影響電梯轎廂停層沉降特性的各種因素；其次是通過負載壓力補償液壓泵馬達內泄漏來改善電梯轎廂速度穩定性；最後是液壓電梯平層精度的理論和實驗研究，並與曳引電梯的理論模型進行了對比，闡述了液壓電梯平層精度低的原因，理論探討了影響液壓電梯平層精度的主要因素。Understand maintenance procedure of compressor, pump, blower, turbine, tower and heat exchanger etc, and prepare lifting plan accordingly and direct big scale equipment
了解壓縮機、泵、風機、汽輪機、塔、換熱器檢維修工作程序，根據檢修要求制訂起重吊裝方案並能夠指揮吊裝大型設備。The model of variability of submergence depth is established based on the law of volume balance, and the changing trends of parameters like submergence depth etc are analyzed. according to the principle of supply and discharge balance, the method to predict oil yield is presented. subject to different objective functions, the corresponding optimum combinations of suction parameters are analyzed, and the importance of choosing objective function to optimum combination of suction parameters is emphasized
本文研究了油井流入動態關系，根據井筒內液量平衡原理，建立了沉沒度變化的數學模型，分析了沉沒度等參數變化規律；根據油井供、排平衡原則，得出了抽油泵排量系數相對穩定狀態下產量預測的關系；分析了不同目標函數下，油井抽汲參數的組合效果，指出了目標函數選取對參數合理組合的重要性。During the circuit design, the author analyzed the basic principle of the direct current motor, pwm control, h - bridge power driver, and two control techniques of h - bridge power drive circuit, designed its general structure, so the feasibility of the design is confirmed. then, reference, oscillator, power dmos gate drive circuit ( charge pump, bootstrap ), and dead time generation circuit are designed and analyzed in the sub - circuits. a current - controlled oscillator is presented in this thesis
在電路設計中，作者介紹了直流電機的工作原理和數學模型、脈寬調制（ pwm ）控制原理、 h橋電路基本原理和h橋功率驅動電路的兩種控制模式，設計了驅動電路的總體結構，給出了電路的功能模塊，確定了設計的可行性，然後在子電路模塊中，重點分析設計了基準源電路、振蕩器電路、高端功率管柵驅動電路（電荷泵及自舉電路） 、低端功率管柵驅動電路和死區時間產生電路。China is a large country with complex natural conditions. there are much inconsistency between the distributing of water resource and the requirement of industry, agriculture and life on time and space. pumping station is very important in the delivery, supply of water resource, especially the large - scale irrigation and drainage pumping station, which has very important contribution in fighting droughts and waterloggings
我國地域遼闊，自然條件復雜，水資源在時間和空間上的分佈與工農業及生活的用水需求存在很多矛盾，泵站在水資源調配及工農業供水等方面起著十分重要的作用，尤其是泵站中較典型的大型排灌站，在抗旱排澇、減輕災害中發揮著巨大的功能。Factory, dalian merro pharmaceutical, dalian heavy - machine crane group, dalian glasses factory, dalian pinch rub factory, dalian danai pumping ltd. etc. in succession. meanwhile, it also undertook many residential and office buildings, such as dalian qinghuayuan, dalian dongbeimingyuan, dalian xinningyuan, dalian longquanhuating and so on, gain the praise of national residential district and xinghai cup awarded by dalian construction industry. in order to improve the working efficiency and yearly production ability, the company invested rmb10, 000, 000yuan to buy one german liebherr 100t car crane, one japan
先後承建大連染料廠大連制藥廠大重大起集團大連玻璃集團大連電瓷廠大連大耐泵業有限公司等大型企業的搬遷工程，與此同時還承建了眾多的住宅寫字樓工程：大連清華園大連東北名苑大連心寧苑大連泉華庭等樓盤項目，榮獲「全國優秀住宅小區」稱號和大連市建築行業頒發的「星海杯」 。Reduction crack in the pumping transfer concrete during the megathermal climateit is a diffcult problem. the unit undertaking project of no : 4 pump station for diverting water from the south to the north make a beneficial explore form the design of mix proportionging, control and the concret placing temperature to control the crack extension those experience can be referenced by the unit in charge of large scale pumping station project
摘要高溫季節泵送混凝土裂縫控制的當前工程界一個難題，南水北調淮安四站工程建設中，建設單位科學安排、精心施工，從控制混凝土配合比、入倉溫度等多方面著手，對混凝土裂縫控制技術進行了有益的探索，並取得了預期的效果，為混凝土抗裂技術積累了經驗，對同類型泵站的施工具有重要的參考意義。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。Based on the perturbation riccati transfer matrix method, the calculating program are developed. the program can be used to the perturbation analysis and the sensitivity analysis of the real and complex, the single and repeated eigenvalues and eigenvectors for lateral vibration of rod and beam structures, especially suitable to the perturbation analysis and the sensitivity analysis of eigenvalues and eigenvectors for rotordynamic systems ; 2. the perturbation riccati transfer matrix method was applied to identify the parameters of the rotor for a boiler supply pump, and the accurate dynamic model of the rotor was archived
該程序可以對桿、梁結構橫向彎曲振動的實數、復數的孤立和重頻特徵值問題進行攝動分析和靈敏度分析，特別是適合於轉子動力學系統特徵值和特徵向量問題的攝動分析和靈敏度分析； 2 、用攝動riccati傳遞矩陣方法解決了某電站鍋爐給水泵轉子的參數識別及動力模型修改的問題，並給出了該種型號的給水泵轉子的更準確的力學模型，為進一步的轉子動力學分析與設計奠定了可靠基礎； 3 、給出了攝動理論在相關領域如隨機特徵值分析、隨機振動響應分析、可靠性分析、靈敏度分析、優化設計以及參數識別中的應用公式。During the year, seven major pumps, six reserve heavy pumps, two light pumping appliances, two mobile command units, 40 light rescue units, and three village ambulances were purchased to replace the old ones
年內，該處添置了七部泵車、六部后備重型泵車、兩部輕型泵車、兩部流動指揮車、 40部小型搶救車及三部鄉村救護車，以取代陳舊的車輛。Based on optimization theories of genetic algorithms and the linear programming, a series of optimal design mathematics models and methods of water transmission conduits and water distribution networks have been presented, in the light of their characteristics. the results are as follows : 1 the linear programming models and calculations of the pressure gravity conduit, the gravity pressure conduit and channel, the pressure conduit with pump station and the pressure conduit in considering pump station flow variations are presented respectively
本文針對不同類型的輸水管線和配水管網系統的特點，應用遺傳演算法和線性規劃等優化設計理論和方法，對其優化設計問題進行了較為系統的研究，成果如下： 1分別建立了重力輸水管道系統、重力輸水管渠系統、泵站加壓輸水管道系統以及考慮流量變化的泵站加壓輸水管道系統優化設計的線性規劃數學模型，並提出了計算方法。Because it was trouble to control the heavy apron type feeder ' s rotate speed, the paper put forward a new method to achieve control the hydraulic motor speed efficiency by control electro motor rotate speed in transducer to control the hydraulic liquid flux of varable delivery pump
摘要文章針對重型板式給礦機速度控制困難，提出了用變頻器控制電機轉速來控制變量泵液壓油流量，以實現對液壓馬達速度的調節方法。Sealless centrifugal pumps for petroleum, heavy duty chemical and gas industry services
用於石油重型化工和燃氣行業的非密封離心泵To counter the above mentioned problems, this thesis is based on the practical situation of pump station operation to analyse its operation cost. the operation cost of pump stations consists of fixed and variable parts. to find the fixed and variable cost, the idea of investment allotment method ( iam ) is introduced to obtain the depreciation cost which is the main part of fixed cost
本論文針對上述兩方面問題，從我國大型泵站實際情況出發，對具有雙重功能? ?供水（含灌溉） 、排澇功能的泵站進行成本分析，提出投資分攤方法來解決固定成本中的固定資產折舊費問題，而用優化調度手段來推求泵站運行成本中的變動成本核心? ?抽水耗電費用。分享友人