circulating control device 中文意思是什麼

circulating control device 解釋
循環控制裝置
  • circulating : adj. 流通的，循環的，運行的。
  • 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...
  • device : n. 1. 設計，計劃；方法，手段。2. 〈pl. 〉意志，慾望。3. 謀略，策略，詭計。4. 器具，器械，設備，裝置。5. 圖案，圖樣；花樣；紋章；標記，商標；（紋章上的）題銘。
  1. The study has completed the design of two - phase inverter and made up of the two - phase inverter - motor system for experimental use it is a variable frequency adjustable speed system with a open - loop control of rotational speed, which consists of voltage - controlled oscillator circulating assign device inverter circuit and two - phase induction motor a accurate mathematical model is set based on the whole system, and simulator program of dynamic and steady condition is established, which is used to calculate the dynamic and steady performance by kron and symmetrical coordinate converter by simulator calculation and experimental research with specific parameter of the system, a comparison is made between predicted and experimental characteristics, experimental measurements are shown to compare closely with corresponding theoretical result it is compared with some variable frequency adjus table speed system comprising inverter and single - phase induction motor from the system efficiency torque pulsation and the effect of two - phase inverter capacitance based on the conclusion, harmonic cancellation pulse width modulation control of a two - phase inverter - fed induction - motor drive system is researched, which cancelled the low harmonic and improve the system performance

    通過對電機的kron變換和對稱分量變換，建立了系統較精確的數學模型，編制了系統動態及穩態運行的模擬計算程序分別計算系統的動態和穩態性能。通過對系統的具體參數進行了模擬運算和實驗研究，實驗和模擬結果進行比較，說明實驗和理論較為一致，並從系統效率、轉矩脈動及兩相逆變器電容的影響等方面與各種逆變器和單相異步電動機組成的變頻調速系統加以比較。在此基礎上，對兩相逆變器供電-異步電動機系統使用諧波抑制pwm控制進行了研究，由於減少了低次諧波，改善了系統性能。
  2. On the basis of analyzing the rock mechanics, the bit working circumstance and property in the bottom hole of 6000m deep well, and making use of the former equipment such as a derrick, platforms etc, the paper demonstrates that the research and design of the mechanical device have been established including the high pressure simulating well bore, the high pressure connector between the static well bore and the rotating drill pipe, the high pressure simulating system of circulating fluid and the high pressure desander etc. the produce, control and dynamic analysis of the bottom hole four - dimensional pressure ( over burden, confined, pore and column pressure ) have been studied

    本文在對井底巖石的受力狀態以及鉆頭的工作環境和特性加以分析的基礎上，藉助原有的井架、平臺等設備，研究設計了模擬6000米井底壓力壞境的高壓模擬井筒、鉆柱高壓轉聯器、鉆井液高壓模擬系統以及高壓除砂器等機械裝置，並研究了井底四維模擬壓力（上覆壓、圍壓、孔隙壓和液柱壓）的產生、控制及其控制的建模與模擬，從而實現井深至6000米的四維井底壓力環境的模擬。
  3. This machine adopts a whole stainless steel packing, the temperature is a number to show automatically control, heat or reduce the heat to all have a signal beacon manifestation, the electric current electric voltage size switches on to all have a manifestation, automatically feeding powder can adjust soon, spread to move part is the bean that the my plant produce product machine appropriation decelerate machine, electrical engineering is the steel plate adjustable type, the machine bottom use of upscale run a round, easy to ambulation, cool off part is automatically circulating water device, the bottom establishes keep of big capacity water tank and heat part is heat preservation economy energy type, normal production can economy in electricity quantity of 30 %, in fact use electricity charges and burn coal basic hold even

    本機採用全不銹鋼包裝，溫度是數顯自動控溫，加溫或降溫均有信號燈顯示，電流電壓大小開機均有顯示，自動喂粉可以調速，傳動部分是本廠生產的豆製品機械專用減速機，電機架是鋼板可調型，機器底部用的高檔跑輪，便於移動，冷卻部分是自動循環水裝置，底部設有大容量的儲水箱，加溫部分是保溫節能型，正常生產可節約用電量的30 % ，其實用電費和燒煤基本持平。
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