flow rate control 中文意思是什麼
flow rate control
解釋
流速控制-
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。 -
The goal is to control the water outlet temperature by manipulating the flow rate of the steam and control the water inlet rate by manipulating the height of the water level in the water tank
本文中，換熱器的控制任務主要有兩個，首先通過控制水箱進口水閥門開度，進而控制水箱水位，進而控制換熱器進口水流量。 -
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 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。 -
In order to determination the thrust, the thrust definition and many control parameters are analyzed discussed, which mass flow rate and flight altitude are involved. it is difficult to measure the flight thrust of solid rocket ramjet directly
通過討論高空飛行推力與地面可測試參數的關系，得到了固體火箭沖壓發動機高空飛行狀態下推力折算方法，並開發相應的計算程序。 -
Manufacture of pressure, temperature, and flow rate control products, and electronic control systems
-生產各種電子秤，口袋秤，手掌秤，珠寶秤。 -
As to the frequency domain methods, the physical significations of the h performance targets, the selection strategy of the weighting functions, loop - shaping and standard problems of robust h control are discussed. frequency domain design methods of robust h control are also introduced to solve the congestion control problem of the high - speed communication networks, which based on flow rate control
頻域方法方面研究了h性能指標的意義、權函數的選取、迴路成形及h控制標準問題；最後把h控制頻域設計方法應用於解決高速通信網路基於流速的擁塞控制問題。 -
Then pid flow rate control algorithm is introduced. all experiments made in this chapter are about measuring the valve parameters according to spool positions, single actuator flow rate control by the calculated flow rate feedback control method, free flow rate dividing control under the sufficient pump discharge flow rate situation, proportion flow rate dividing and flow rate dividing based on meter - in flow rate feedback control method under insufficient pump discharge flow rate situation. the results of all experiments proved that the method presented in this thesis is an effective way to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads
第四章介紹了多執行器復合控制實驗系統和實驗方法；介紹了實驗採用的流量控制的pid演算法；並測定了執行器控制閥和閥芯位移相關的系數；做了單個執行器計算流量反饋流量控制、流量足夠情況下多執行器流量任意分配、流量不足情況下多執行器按比例調節流量分配和多執行器進油側流量反饋分流控制實驗；通過實驗說明了論文提出的分流控制方法能實現大小慣性負載復合操作時的合理分流。 -
Explores the location of pressure difference control points in variable flow rate systems with a hot water heating piping model
摘要結合一個熱水供暖熱網模型，探討了變流量壓差控制點的設置位置。 -
Fuzzy control of fuel flow rate on small aviation gasoline engine
小型航空汽油發動機供油量的模糊控制 -
The process of effluent flow during loading in self - propelled trailing suction hopper dredgers was simulated by way of physical modeling and was measured and analyzed by using the flow rate and concentration of spoil in the hoppers, particle sizes of sediments at the inlet and outlet of the effluent flow pipe and hopper volume as the major control parameters
摘要通過物理模型試驗模擬自航耙吸挖泥船裝艙溢流施工過程，以艙內流速、艙內濃度、溢流進出口泥沙粒徑、裝艙量幾方面為主要控制因素，進行實測、分析，並比較自航耙4種常用裝艙裝置的消能效果。 -
A pid controller based on artificial neural network was designed to control the flow - rate of oxygen and the recycled exhaust gas. good control effects were obtained through simulation
設計了基於單神經元的pid控制器對閉式循環柴油機的氧氣流量和廢氣再循環量進行了控制，通過模擬得出了較好的控制效果。 -
Calculating and analysing result indicates that the control point located in the joint of first user and main pipe and the pressure difference equaled to the design value can satisfy the demand flow rate of the users and save energy
計算分析結果表明，將控制點設置在第一個熱用戶與主幹管的連接處、控制壓差設為該處的設計工況壓差既能保證熱網中各用戶流量又較節能。 -
Abstract : design ideas, technical features and system architectures of advanced process control for polypropelene units were introduced together wit h on - line calculations for the controlled variables such as the yield of polypr opelene, concentration of monomer, hydrogen concentration in liquid phase and the melt flow rate index. attentions in implementation were pointed out
文摘:介紹聚丙烯裝置先進控制技術的設計思想、技術特點和系統構成，並介紹產率、漿液濃度、液相氫氣濃度、熔體流動指數等被控變量的在線計算，指出了實施中應注意的問題。 -
The advantages and the disadvantages of every structure and every flow rate dividing method are analyzed. further requirement of techniques and problems to be investigated are pointed out in this chapter. then it presents a new idea of flow rate dividing method based on pressure decrease sensing and meter - in flow rate feedback control to overcome the unreasonable flow rate dividing when simultaneously operating multi - actuators with different inertia loads
第一章緒論綜述了多執行器系統的概念、基本構成和一些分流控制方法，分析了各種分流控制結構和分流控制方法的優缺點，在此基礎上指出了一些所需要進一步研究的問題；接著提出了論文的選題意義和一種基於壓差傳感和執行器進油側流量反饋的分流控制方法來實現大小慣性多執行器流量合理分配的構想。 -
Control valve characteristic depends on its flow rate, pressure drop, static pressure and valve stroke
這些特性的明了與掌握，有助於控制閥的設計與操作問題的排除。 -
Chapter 3 gives an introduction to the flow rate dividing principle based on meter - in flow rate feedback control of multi - actuators control system. special analysis about simultaneously operating multi - actuators with different inertia loads is made. finally the results of simulation proved that the new method is an effective way to improve the flow - used ratio when the pump discharge flow rate is insufficient
第三章介紹了基於執行器進油側流量反饋的分流控制的原理，並針對大小慣性執行器同時起動時採用該分流控制方法進行了具體分析；最後通過模擬說明該分流控制方法能在大小慣性執行器同時起動並在泵輸出流量不足的情況下有效提高泵輸出流量的利用率，並能實現優先級和分流比混合控制。 -
To improve the performance of ashp, an improved ashp system is presented. different from the original system, the new one can control the refrigerant flow rate by the sub - cooling of condenser and adjust the sup - heating of the compressor inlet vapor by the heater in accumulator. the simulation shows the new system not only has better dynamic characteristic of frost and defrost of ashp, but also has higher coefficient of performance
為改善空氣源熱泵機組的結霜除霜動態性能，提出了一種利用冷凝器過冷度來調節製冷劑流量，在氣液分離器里增加電熱裝置保持壓縮機進口過熱度的改進型系統，結果表明這種改進型系統不但可以改善系統的運行性能，同時能改善系統運行的經濟性，為機組的技術升級和產品更新提供了一個新的途徑。 -
The proportional pressure / flow hybrid valve ( pq valve ), which adjusts pressure and flow rate simultaneously, is increasingly adopted for the hydraulic control system in molding machine, due to its advantages of high integration degree, stable and energy - saving performance. based on the analysis of various types of pq valve, this paper investigates the control performance of the byl 16 series valve, including the static and dynamic characteristics
本文在綜合了目前國內外各種pq閥技術現狀的基礎上，分析研究了由浙江大學研製的byl系列pq閥的靜、動態性能，並結合模擬和試驗研究，提出了改善pq閥靜動態性能的機理和有效措施，為今後實際工程應用和系列擴展設計提供了很好的理論依據。 -
Introduces the structure of the multi - actuators control system based on pressure decrease sensing. then a multi - actuators control system model is developed for the constant pump discharge pressure hydraulic system. also the factors that affect the static accuracy of actuators " speed and flow rate and the dynamic characteristic are analyzed in this chapter
第二章簡單敘述了基於壓差傳感的計算流量反饋流量控制原理及其實現；介紹了基於壓差傳感的多執行器復合控制系統的構成；之後主要針對定壓系統多執行器復合控制建立了數學模型，並分析了影響執行器速度及流量穩態控制精度和動態特性的一些因素。
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