load control valve 中文意思是什麼

load control valve 解釋
負載控制閥
  • load : n 1 裝載，擔子；負擔；工作（負荷）量。2 （車船等的）裝載量；一馱，一車，一飛機。3 【電、機】（機...
  • control : n 1 支配，管理，管制，統制，控制；監督。2 抑制（力）；壓制，節制，拘束；【農業】防治。3 檢查；核...
  • valve : n 1 【機械工程】閥，活門，舌門；汽門。2 【解剖學；動物學】瓣，瓣膜；（貝）殼瓣；【植物；植物學】...
  1. Ssr - dd series of dc solid relay is vastly applied to output joggle of computer and external equipments, it is also applied to control or switch dc load : dc relay 、 contactor 、 dc electrical motor 、 kinds of electric - heating apparatus 、 dc electromagnetic valve 、 electromagnetic iron 、 solenoid 、 filament lamp 、 indication lamp 、 plc logical electrical appliance and dc solid relay

    Dd系列直流固態繼電器廣泛應用於計算機與外部設備的輸出介面，適用與控制或開關直流負載：直流繼電，接觸器、直流電動機、各類電熱器具；直流電磁閥，電磁鐵、螺線管、白熾燈、指示燈； plc邏輯電器。
  2. Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning

    第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。
  3. When the governing valve was series - connected on the return oil - line in the metering - out control system, under the same flow area and the same adjusted pressure of relief valve, with the incremental quantity of step load, the pressure highly - adjusted capacity of the hydraulic cylinder chamber with piston - rod increased, meanwhile, it ' s time of rise, time to peak and the governing time all increased. at the same time, the pressure highly - adjusted capacity of the hydraulic cylinder chamber without piston - rod increased

    當出口節流調速系統的回油路上串接調速閥時，隨階躍負載的增加，在相同流量閥開度、相同溢流閥調節壓力的情況下，液壓缸有桿腔壓力p _ 2 （ t ）的超調量是增加的，上升時間、峰值時間以及調整時間也是增加的；液壓缸無桿腔壓力p _ 1 （ t ）的超調量是增加的。
  4. 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。
  5. The timing - and - quantitation precision injection of lpg was realized with high - speed lpg solenoid valve and a set of electronic control system, which was designed by the author and can flexibly control the gas supply system of lpg. based on the analysis of experimental data got by comparing the performances before and after the application of the set of equipment on lr6105q12 diesel engine, the effects of load, speed and replace ratio, etc on the emissions of smoke, hc and co of dual fuel engine were expounded. through optimization, the smoke emission was utmostly reduced and the emissions of hc and co were within the government restriction

    為此，本文通過對各個方案進行詳細比較，選擇了電控多點順序噴射的供氣方案；利用高速lpg噴射閥和自己獨立開發出一套電子控制系統對lpg供氣進行靈活地控制，實現了lpg的定時定量噴射，並把這套裝置應用到中國一拖生產的lr6105q12柴油機上，在對改裝前後的發動機進行大量試驗和分析的基礎上，闡明了負荷、轉速、摻燒比等因素對雙燃料發動機的煙度、 hc 、 co等排放的影響情況，並且通過優化，最大限度地降低了發動機的煙度排放，同時使hc 、 co排放限制在國家標準規定的范圍之內。
  6. Used the metering - out control system in which the hydraulic cylinder was the executive element as research object in this thesis, the experimental research about the effect on the pressure p1, p2 of the hydraulic cylinder chambers when series - connecting throttle valve or governor valve on the return oil - line under the step load changing have made

    本文以單出桿液壓缸為執行元件的出口節流調速系統為研究對象，在其迴路上分別串接節流閥和調速閥，當負載發生階躍變化時，對液壓缸兩腔壓力p _ 1 、 p _ 2的影響進行了試驗研究。
  7. This dissertation put forward a new control scheme to improve the control performance of load simulator. this control scheme which can bring the merit of the two kinds of servo valves into full play, use a pressure servo valve and a flow servo valve to control loading system

    本文提出了壓力伺服閥和流量伺服閥雙閥控制方案，通過與壓力伺服閥單閥控制方案的對比，指出其特點，為減搖鰭加載臺的設計提供了新方法。
  8. At the beginning of this article, we give the analysis about the principle of external condensation. we find out that the most important factor in the condensation is the temperature of the air in the system. and we point out the factors which can make influence in the external condensation, such as the temperature and the humidity of the environment, the temperature and the pressure of the supplying air, the load of the system, the area of passage of speed control valve, and so on. next, we give the mathematics model of the pneumatic system using the knowledge of aerodynamics and heat transfer theory. and using the finite difference method and the numerical analysis we can get the solutions of the model. we use c program to simulate the model

    本文首先對氣動系統外部結露的原理進行了分析，指出了氣動系統內部氣體溫度下降是氣動系統外部結露根本原因，提出了影響氣動外部結露的主要因素，包括環境溫度、環境濕度、供氣壓力、供氣溫度、氣缸負載和調速閥開度等。然後應用氣體動力學、氣體熱力學和傳熱學對氣動系統建立數學模型，用逆步進有限差分法和數值分析演算法對所建模型進行求解，利用c語言編製程序對氣動系統模型進行模擬，給出了氣管及氣缸內氣體的各個時刻的狀態參數。
  9. Lcv load control valve

    負載控制閥
  10. The proportional flow valve control system with speed - electric feedback applied in hydraulic elevators can eliminate disturbances of nonlinear source such as oil temperature and load change. in this system, the proportional valve plays a key role

    採用轎廂速度一電大閉環反饋控制方法的電液比例閥控系統，可以排除油溫及負載變化等因素引起的非線性干擾，極大地提高了液壓電梯的工作性能。
  11. Accorded to the experimental research, under different flow area of flow valve and different adjusted pressure of relief valve, conclusion that the regulation of the pressure p1, p2 in the two cylinder chambers varied with the change of step load were as follows : when the throttle valve was series - connected on the return oil - line in the metering - out control system, under the same flow area and the same adjusted pressure of relief valve, with the incremental quantity of step load, the pressure highly - adjusted capacity of the hydraulic cylinder chamber with piston - rod decreased, meanwhile, it ' s time of rise, time to peak and the governing time all decreased. while the pressure highly - adjusted capacity of the hydraulic cylinder chamber without piston - rod increased

    通過試驗研究得出系統在不同的流量閥開度、不同溢流閥調節壓力（進口壓力）下，液壓缸兩腔壓力p _ 1 、 p _ 2隨階躍負載變化的規律：當出口節流調速系統的回油路上串接節流閥時，隨階躍負載的增加，在相同流量閥開度、相同溢流閥調節壓力的情況下，液壓缸有桿腔壓力p _ 2 （ t ）的超調量是減小的，上升時間、峰值時間以及調整時間也是減小的；液壓缸無桿腔壓力p _ 1 （ t ）的超調量是增加的。
  12. The experimental system is build up in this dissertation, by which we proceed the experimental research aiming at two structure schemes which are electro - hydraulic load simulator controlled by single pressure servo valve control and loading platform controlled by pressure and flow servo valves separately

    本文建立了減搖鰭電液負載模擬臺的實驗系統，並分別在單個壓力伺服閥控制加載系統、壓力伺服閥和流量伺服閥雙閥控制加載實驗系統進行了實驗研究。
  13. During unit startup and load is lower than 15 %, drum level is controlled by feedwater control valve, feedwater pump remains at minimum safety speed ; when load is between 15 % and 25 %, feedwater control valve is closing at fixed speed determined by function module, main motor - operated - valve is opened automatically, control mode of drum level is transferred to feedwater pump automatically and bumplessly ; when load is between 25 % and 50 %, control valve is closed fully, and main motor - operated - valve is open fully, drum level is controlled by one pump ; when load is more than 50 %, first pump is kept in operation, second pump is putting into operation automatically and

    在機組啟動、沖轉及機組並網至15 %負荷階段，給水泵維持在最低安全轉速下運行，汽包水位由低負荷給水調節閥自動控制; 15 %至25 %負荷階段，給水調節閥由函數模塊按照一定的速率自動平滑關閉，主給水電動門自動打開，汽包水位控制方式自動無擾切換為給水泵自動控制;負荷在25 %至50 %階段時，給水調節閥已完全關閉，主給水電動門已完全打開，水位控制已全由單臺給水泵承擔;負荷大於50 %后，在第一臺給水泵運行的同時，第二臺給水泵自動無擾投入。
  14. Both units ( 2x300mw ) of one power plant in india, designed and constructed by china, employ feedwater system composed of three 50 % capacity motor driven feedwater pumps, one low load feedwater control valve and one main motor - operated - valve

    由我國承建的印度某電廠兩臺300mw發電機組，其給水系統設三臺電動調速給水泵、一個低負荷給水調節閥（用於低負荷水位控制）和一個電動主閘閥。
  15. This paper is focused on the mathematical description of hydraulic control system, in which the hydraulic power comes from variable pump, the actuators are two valve - controlled motors, and the load is purely inertial

    摘要探討了由變數泵為液壓源、 2個閥控馬達為執行元件以及慣性負載組成的液壓控制系統的數學描述，並給出了其線性化模型。
  16. In the light of significant energy losing during the hydraulic excavator working, a dynamic system was made up from the diesel engine, the variable pump, the control valve and the load to cut down the losing energy from a systematic approach based on the control characteristics of the system elements

    摘要針對液壓挖掘機在工作過程中存在的大量能量損失，根據泵的控制特性曲線，將發動機、變量泵、控制閥及負載作為一個動態系統來研究其節能問題。
  17. A pneumatic load - simulator, constructed with a cylinder controlled by proportional valve, is established in this paper, and its characteristics and control strategy are studied

    本文構建了由比例閥控缸實施加載的舵機氣動伺服加載系統實驗裝置，研究其特性及控制策略。
  18. This paper analyses the type, function and characteristics of usual proportional control valves and raises a new modificative version in the light of their drawback. that is, basing on the principle of flow amplification and electrical feedback and throughout calculation and analysis on flow closed loop control and pressure flow combination., determination of the minimum controlled pressure difference as well as flow controlling range and structure of main valve and research of the dynamic and static characteristic, the paper puts forward control principle of " flow - load pressure change - displacement revision " and pressure / flow double closed loop, and further expounds that using a proportional controller and a electric mechanical transducer can separately serve the control function of pressure or flow as well as flow pressure combination

    本論文分析了目前常用比例閥的類型、功能、特性，並針對其不足提出新的改進方案，即：以流量放大，電反饋兩個原理為基礎，通過對流量閉環控制及壓力流量復合的計算分析、確定上最小控制壓差及流量控制范圍，確定主閥結構、功能特性研究等，提出了「流量? ?負載壓力變化? ?位移修正」的控制原理和壓力流量雙閉環控制原理，並進一步論述了利用一個比例控制器和一個「電?機械轉換器」就可完成獨立的壓力或流量控制功能以及流量壓力復合控制功能。
  19. 2 > on the basis of the experimental excavating robot, several energy saving controls with multi function valve control are investigated in this paper, which include negative control, positive control and load sensing control. because of some defaults of these controls, this paper proposes some improvements on them, which have been proved to be effective in experiments

    2 、以試驗型挖掘機器人為對象，對多種閥控節能控制進行了深入研究，其中包括負流量控制、正流量控制和負荷傳感控制，針對這些節能控制方式的不足提出了多種改進方案，並分別進行了試驗驗證，效果良好。
  20. That is, through analysis of the principle on flow control and " hydraulic transistor ", design and calculation of flow control characteristic as well as main parts in valve inner chamber, a piloted reducing valve will be installed between main valve and pilot valve. after a pressure - difference compensating reducing valve was added in the non - pressure compensating piloted reducing valve of the flow control valve in vlalvistor valve, the calculation on control characteristic emulation and load characteristic emulation has been carried out. the result of the calculation shows that after pressure compensating reducing valve was added, the linearity of the control characteristics has been greatly improved thus eliminating influence upon outlet flow by load pressure - change of the hydraulic system and improving performance characteristics of the hydraulic component

    文章還在對瑞典valvistor閥的插裝比例閥研究的基礎上，提出了一種新的流量控制原理，即：通過對流量控制和「液壓晶體管」原理的分析、流量控制特性及閥內腔主要結構件的設計計算，在主閥和導閥之間增設先導減壓閥，並進一步對valvistor閥的流量控制閥之無壓力補償先導減壓閥、加入壓差補償減壓閥后的控制特性進行了模擬計算和負載特性模擬計算，結果表明：增設壓力補償先導增壓閥后，其控制特性曲線變得非常線性，從而消除了液壓系統負載壓力變化對主閥輸出流量的影響。
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