main control valve 中文意思是什麼
main control valve
解釋
主調節閥-
In this paper, a safe, reliable, and intellectual control plan is provided aiming at the heat charge for dwelling district, which contains epigynous machine responsible for data processing and hypogynous mahcine responsible for unlocking the valve, by means of serial communication between them, combining homemade three - channel valve, to adminstrate the charge data and the valve efficiently. the main idea is based on the homemade three - channel valve. the vavle is locked at peacetime, while it is opened with the help of open tool and a water flow in the caliduct. as soon as the flow stops, the valve locks automatically. the open tool has data in its memory, and implement function by lcd and keyborad. so it can identify data and drive motor, to open the valve intellectually. the epigynous machine database manage system administrator the dweller information, standard heat charge and payment infomation etc, including store, configure, query, print etc, then store in the memory of open tool. as a result, the plan can do well in the experiment
此閥平時是鎖閉的，只有用開啟器配以暖氣片中的水流才可打開，一旦水流斷開，則此閥會自會鎖閉。而開啟器則是根據其存儲器中的數據配以液晶顯示及小鍵盤，完成數據確認及電機驅動，自動對相應用戶的三通閥打開特定角度，完成開啟任務。上位機數據庫管理系統完成對用戶信息、熱費標準、繳費信息等原始數據的常規管理，包括存儲、設置、查詢、列印等，最後將處理后的數據傳到開啟器中存儲。 -
During the adjustment. it decided the amount and the rate of humidification. the system can test the states of water level by water lever sensor, thereby the main control module can control the entrance and drain of water and give warnings ; as its good man - machine interaction, the system can expediently set the humidity and the amount of humidification and control water - in valve and leading winds through control panel. the system can communicate with computer thereby the net supervise is enabled
本系統主要能夠完成以下功能：採集空氣中的濕度狀態，並送入主控模塊，主控模塊根據現有的濕度判斷是保持原來狀態還是進行加濕以及加濕量的大小和加濕速度等；能夠通過水位傳感器測試水位的狀態，從而通過主控模塊控制進水、排水、預報警、報警等；具有良好的人機交互性，能夠通過控制面板比較方便地進行濕度設定、加濕量設定、進水閥的控制、導風的控制等；能夠和上位機進行通信，從而實現網路監控。 -
Air tightness test and safety valve adjusting for main air receiver ( control air receiver, air horn receiver ) on board
主空氣瓶（控制空氣瓶、汽笛空氣瓶）裝船后氣密試驗和安全閥的調整。 -
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。 -
( 4 ) in order to improve the system and its working function, a hydraulic controlled direction valve is connected in the main oil circuit to control the differential of the piston. then the dimentions of the cylinder and the piston are reduced, improving the working properties
廣東工業人學工學顧十學位論義（ 4 ）為進一步改進設計方案，提高其工作性能，在主油路中加一液動換向閥，控制活塞的差動，從而將減小油缸和活塞的尺寸，提高工作性能。 -
For these reasons, we can apply the theory of the model reference self - adaptive control syetem design based on the theorem of balance point stabilization in the force system of asymmetric cylinder controlled by symmetric valve. the main idea of model reference self - adaptive controller is to make the self - adaptive control error incline to zero as time passed. the task to design adaptive controller is to find the control input that can make the output of the controlled system to follow that of the reference model
因此將基於平衡點穩定定理的模型參考自適應控制系統設計理論應用於閥控非對稱缸力系統中，其基本原理是使自適應控制誤差隨時間的推移而趨向于零，自適應控制器設計的目的是尋找使被控系統的輸出漸近一致的跟隨參考模型的輸出的控制輸入，以此來改善被控系統的性能。 -
The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。 -
Main products - marine pipe fittings : marine plate glass oil level gauges, marine double colored leveplate glass oil level gauges, magnetic oil gauge, marine cast steel with flanges, quick closing valves, bronze valve series, sea water filters, oil filters sump tanks, control boxes for quick closing valves, oil flushing sysstem. deck machinery. 200kg motor driven cranes, etc. hand tools : slip joint pliers. we also handle the design and manufacturing of all knds of non - standard machinery and equipment and valves
主要產品船舶管系附件：船用平板玻璃液位計船用雙色平板玻璃液位計磁性液位計船用法蘭鑄鋼閥快關閥青銅閥系列速關閥控制箱海水濾器油濾器泥箱串油系統甲板機械： 200kg電動吊車等五金工具：鯉魚鉗等鉗類。 -
The research work is involved in the main circuits structure and the protection of the valves, the determination for the important parameters of the components in the main circuits, the triggering system of the valves, the technology of hv - tsc valve ' s turn - on without inrush current presentation, and the function design for the controller of the thyristor valves. a real hv - tsc valve controller corresponding to the research work has been developed. field tests has shown that the hv - tsc valve controller is able to provide effectively and reliably control and protection for the hv - tsc valves
本論文對高壓tsc裝置所用的可控硅開關的主電路電氣結構、主電路的保護電路、主電路中的重要元件參數的選擇、可控硅開關的觸發系統構成、無沖擊涌流投入電容器技術、可控硅開關控制器功能設計及其功能實現進行了深入的研究和探討，並對可控硅開關控制器進行了實際的設計和試制，現場測試證明其對可控硅開關的控制是可靠、有效的。 -
There should be a main valve between mother tube boiler and steam mother tube, which should be in remote control
6母管制機組的鍋爐與蒸汽母管之間應有主汽閥，主汽閥要實現遠方控制。 -
The thesis comes from the double - side turntable die spotting press project cooperated by npu908 with shannxi forging and rolling equipment works. the main work is studying high - accuracy position control system of double - side turntable die spotting press. the system uses proportional orientation valve with high echo performance
課題來源於九零八教研室與陜西壓延設備廠聯合研製的1000kn雙側翻轉模具研配壓機這一實際工程項目，論文主要研究內容是研配壓機的高精度位置控制系統。 -
In power decentralized system, there are not pump / fan installed in main pipe, but also in branches, using the variable speed control to regulating the flow, valve energy consumption can be reduced or avoided, but the investment is higher and control is complicated
動力分散系統不但在系統的母管上，而且在各支路上設泵（或風機） ，並實行變速控制以調節流量，可以減少乃至消除調節閥能耗，但投資增大，控制復雜。 -
According to the present problems and developing tendency of hydraulic turbine governor, four main issues of this field are studied in this paper. the content include hydraulic control system, frequency measurement unit, stability of the discrete control system, optimization of control parameters and self - adjusting pid control strategy based on fuzzy logic. several main achievement and results are obtained and shown as follows : the electric - hydraulic pilot valve driven by step - motor is firstly proposed, which solves the problem that the electric - hydraulic converter of hydraulic turbine governor hydraulic servo is prone to be stuck and blocked and improves the systemic stability greatly
本文根據水輪機調節領域存在的問題和發展趨勢，對水輪機調速器的液壓控制系統、頻率測量環節、離散調節系統穩定性與調節參數最優整定以及適應式參數自調整pid控制策略進行了研究，得到以下主要成果和結論：首次提出了採用步進電機驅動的步進式電液引導閥，從根本上解決了水輪機調速器電液隨動系統中存在的電液轉換元件發卡、堵塞問題，使電液隨動系統的可靠性大大提高。 -
We have numeral control lathes with different grades and configuration such as ckc6130, cnc6130 etc. all of them have reasonable structuer, stable operation, high speed of main shaft, high precision and are ideal products for machining processes in fields of medical treatment, textile, automobile, valve, mechanical and electrical products etc
產品主要有ckc6130 cnc6130等不同檔次與配置的數控車床，其產品結構合理，運行穩定，主軸轉速度高，精度高，是醫療紡織汽車閥門機電等各類機械車削加工的理想產品。 -
Through adjustment of the thermal control parameters, the valve stem leakage problem of the main steam valve resulted from insufficient opening in hot state has been eliminated
通過調整熱控參數，消除了熱態時閥門開度不足問題，主汽門桿再未發生蒸汽泄漏。 -
After retrofitting the digital electro - hydraulic ( deh ) control system of the steam turbine unit no. 1 in dezhou power plant, the valve stem leakage has occurred on the highpressure main steam valve, and the causes leading to the said leakage being analysed
摘要對德州電廠1號汽輪機組在經過deh控制系統改造后高壓主汽門桿發生蒸汽泄漏的原因進行了分析，認為蒸汽泄漏是熱態時閥門開度不足所致。 -
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。 -
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。 -
Main control valve
主控制閥 -
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。
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