hydraulic flow control 中文意思是什麼
hydraulic flow control
解釋
液壓油流量調節-
This paper supplied a new way through variable frequency variable speed ( vfvs ) to change its output flow rate and adding a constant - pressure - drop valve, which could solve the defects in hydraulic pressure servo control system, such as low efficiency in control system, short life, poor ability in resisting pollution, low efficiency in driving system and flow rate, pressure pulse. and this way was proved to be effective
本論文針對傳統伺服控制系統效率不高、元件壽命短、抗污染能力差、驅動系統效率低、存在流量及壓力脈動等缺陷，利用先進的交流變頻調速技術改變液壓泵轉速的容積調速新方法，提出了在液壓系統中加一個定差減壓閥的新思路，較好地解決了液壓伺服系統存在的上述問題。 -
To provide necessary data for design bypass pipe, an enlargement to bi liu river reservoir, the following problems have been studied by hydraulic model and theoretical analysis : the energy losses in water head of the bypass pipe system and of the flow - control valve and their scale effects, measurement and calculation of the discharge of the bypass pipe system during the bypass pipe system operation with and without the new water power station, the hydraulic characteristics of the water tunnel and draw - off pipe, the flow rate of the aqueduct bridge and the draw - off pipe and the water elevation of the flow in the aqueduct bridge during the old water power station operation with and without the new water power station
大連市碧流河水庫供水工程取水頭部由引水渡槽、節制閘、進水閘、泄水閘等建築物組成。由於本工程場地條件限制，增設旁通管后布置非常緊湊，管道急轉角度大且轉彎距離較小，對于管內水流流態是否滿足要求，需要經過模型試驗進行論證，以確保工程的可靠性。旁通管具有上水與泄水要求，對其過流能力也要經試驗確定，為碧流河水庫增建旁通管設計提供依據。 -
The zs3 series multiple directional control valves, one kind of combination valves with the manual directional control valves ， are mainly used in hydraulic systems of engineering machinery, mining machinery, lifting transportation machinery and other machinery to change flow direction for integrated control over several actuator
Zs3系列多路換向閥是一種以手動換向閥為主體的組合閥，它主要用於工程機械、礦山機械、起重運輸機械和其他機械液壓系統，用以改變液流方向，實現多個執行機構的集中控制。 -
The main products of our company : series of mining emulsion pump station, series of electric haulage shearer, sparying pump station, series of mining flame - proof vacuum / air electromagnetic starter, series of mining vacuum / air feeding switch, series of mining fame - proof and natural - safe. type ac soft starter, series of hydraulic stand valve and pipe system, high flow rate quick - moving valve, the new product nearing into market - the hydraulic support electric - control system, mining electric drill, hydraulic valve test table, electric performance test table
公司主導產品為：系列電牽引採煤機、系列礦用乳化液泵站、噴霧泵站、礦用隔爆兼本質安全型交流軟起動器、系列礦用隔爆真空、空氣電磁起動器、系列礦用真空、空氣饋電開關、系列液壓支架閥類及管路系統、大流量快速移架閥、即將投入市場的新產品? ?液壓支架電液控制系統、煤電鉆系列、液壓閥試驗臺、電性能試驗臺等。 -
The improvement system is made up of the pressure sensor, flow sensor, displacement sensor, electro - hydraulic proportional flow control valve, power amplifier, data gathering board and computer. the platform can carry out testing the hydraulic parameters, processing the tested data, saving the processed data and drawing, adjusting the pressure automatically
改造后的測控系統主要由壓力傳感器、流量傳感器、位移傳感器、比例節流閥、功率放大器、數據採集卡和計算機組成。改造后的實驗臺具有自動採集實驗數據、自動處理實驗數據、自動保存實驗數據、自動調節液壓系統負載壓力等功能，大大提高了實驗臺的工作效率、測試精度和智能化水平。 -
Test methods for electro - hydraulic proportional bypass flow control valves
電動液壓比例旁通流量控制閥試驗方法 -
Efficiency of permeable pile dike is closely related to water - sand ratio in upstream flow, direction of the coming flow and seepage rate. this paper investigates mechanism and effect of flow control and aggradation using hydraulic modeling and theoretical analysis. it is shown that suitable seepage rate can help aggradation and suitable coming flow direction can help to govern the flow trend
研究結果顯示，來流和來沙一定的條件下，透水率在適當的范圍內有利於壩后緩流落淤，入流角在一定范圍內對控導河勢有明顯作用，不同方案組合所對應的緩流落淤效果和控導河勢作用具有一定的差異性。 -
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。 -
Hydraulic fluid power - electrically modulated hydraulic control valves - part 1 : test methods for four - way directional flow control valves
液壓傳動電調制液壓控制閥第1部分:四通方向流量控制閥試驗方法 -
Hydraulic fluid power - electrically modulated hydraulic control valves - part 2 : test methods for three - way directional flow control valves
液壓傳動電調制液壓控制閥第2部分:三通方向流量控制閥試驗方法 -
Test methods for electro - hydraulic proportional series flow control valves
電動液壓比例串聯型流量控制閥試驗方法 -
Hydraulic fluid power - electrically modulated hydraulic control valves - test methods for four - way directional flow control valves
液壓流體動力.電動調節液壓控制閥.第1部分:四向流動控制閥的試驗方法 -
Hydraulic fluid power - electrically modulated hydraulic control valves - test methods for three - way directional flow control valves
液壓流體動力.電動調節液壓控制閥.第2部分:三向流動控制閥的試驗方法 -
Hydraulic fluid power. electrically modulated hydraulic control valves. part 1 : test methods for four - way directional flow control valves
液壓流體動力.電動液壓控制閥.第1部分:四路定向流量控制閥的試驗方法 -
Hydraulic fluid power. electrically modulated hydraulic control valves. part 2 : test methods for three - way directional flow control valves
液壓流體動力.電動液壓控制閥.第2部分:三路定向流量控制閥的試驗方法 -
Test methods for electro - hydraulic proportional directional bypass flow control valves
電動液壓比例定向旁通流量控制閥試驗方法 -
Hydraulic fluid power - compensated flow - control valve
液壓調速閥 -
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。 -
As the demand for their high quality and good outline is increasing, the hydraulic control system of molding machine must be able to offer accurate pressure and flow control at the same time to its injection system
集壓力、流量比例調節於一體的電液比例壓力流量復合控制閥（簡稱pq閥）以其復合程度高、控制性能好、節能等特點在注塑機液壓控制系統中得到了日益廣泛的應用。 -
Hydraulic fluid power - compensated flow - control valves - mounting surfaces
液壓傳動.補償流動控制閥.裝配面
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