換向泵 的英文怎麼說
中文拼音 [huànxiàngbèng]
換向泵
英文
reversing pump-
Research to the hydraulic impulsion simulation for concrete pumps
混凝土輸送泵換向液壓沖擊模擬研究Hydraulic concrete crusher detail : all round, extremely efficient concrete crusher system for concrete demolition in general, and reinforcement exposure in particular. the system works immissionfree, i. e. : it does not produce any noise, dust or cibrations and operates without water. description : pliers qty 1, hydraulic power pack qty 1, 10m long oil pipe set of hoses, high pression qty 2, accessories bag qty 1
啟動電機帶動油泵運轉,液壓油直接返回油箱手動轉動換向閥三位四通閥一個位置后,液壓油進入系統推動活塞,活塞桿伸出,帶動鉗體收縮,從而破碎鋼筋混凝土結構,反向轉動換向閥,鉗體松開,完成一個工作循環。Thirdly, it simulated the pumping circuit & dividing circuit with the widely used software matlab / simulink. the displacement of the rod piston and the impact of hydraulic are analyzed in the different input flow ( frequency of pump ) and different reversing time. it found out the cause of hydraulic impact ( one - to - one incorrespondence between the response time of dividing circuit and the operation time of rod piston ), and gave some methods to weaken hydraulic impact. in the final part of the paper, the reliability of the theory analysis is further verified by the experiment of hydraulic system
首先在流變學原理的基礎上,深入分析混凝土在輸送管道內的流動狀態,得出混凝土泵的負載特性方程;然後根據功率鍵合圖的建模方法,建立泵送迴路和分配迴路的數學模型,並運用模擬軟體matlab simulink對泵送和分配迴路模型進行了模擬,分析了在不同的輸入流量(泵送頻率)和換向時間下,活塞桿的位移和系統的液壓沖擊情況,找到了引起液壓沖擊的根本原因(即分配迴路的響應時間(固定值)與活塞桿的運動時間(變化值)不相匹配) ,並提出了相應的改進方法。The equipment made by us of titanium, stainless steel, aluminum or plastics, mainly include column condenser ( heat exchanger ) ; coil hear exchanger ; membrane evaporator ; constant boil tower ; reactor ; pressure filter, storage tank ; blower, centrifuge and ta series corrosion - resist titanium pump, as well as variety of metal constructional member. they are widely applied in the industries of petrochmical engineering, smelt, pharmacy, chlorinate alkali, salt preparation, as well as electric chemical plant
我廠生產鈦材,不銹鋼等各種材質的化工設備,主要有風機,離心機,鈦泵,鈦閥,列管式冷凝器(換熱器) ;盤管式換熱器;薄膜蒸發器;塔器;反應器;貯存容器;面向石油化工,冶煉,制藥,氯堿,制鹽食品,造紙,環保等化學工業領域及電化行業。In the case of type i down - conversion, the polarization of the signal and the idler photons will be identical, its direction being determined by the polarization of the pump
在第i類下轉換情況下,信號光和閑頻光的偏振是一樣的,它們的方向是由泵浦光的偏振決定的。The host pumps and the auxiliary pump adopts the hydraulic and pneumatic united drive, the movement is nimble and reliable
主泵、副泵採用液氣聯合驅動及無觸點電氣控制系統,運行平穩,換向靈敏可靠。A low power dissipation charge pump dc / dc converter circuit using 0. 5um cmos technology is presented in this paper
該文分析設計的一種低功耗電荷泵dc / dc轉換電路源於和境外公司的橫向合作項目。The emphasis of this paper is the commutation control of sensorless bldc motor, which is used to drive photovoltaic pumps
本文所研究的重點是無位置傳感器直流無刷電機的換向控制,電機驅動的對象為光伏水泵系統。Especially designed according to the characteristics of stone quarrying. mainly used for moving, overturning large size rocks
1採用電機與雙泵雙油路,手動換向閥控制,結構緊湊,使用方便。First, because pipelines are so complex that controlled object is high order, delay, coupling, nolinear and time - varing, it is difficult to realize closed loop control for it using valid mathematic model. to resolve this problem, the paper presents a fuzzy - pid control algorithm with self - adjusting regulation factor. second, if a moving motor supplied by inverter power is switched to be supplied by power supply, the impact of overload - voltage and overload - current appears
主要針對中、大容量供水系統中,由於供水管網鋪設復雜、彎管多、控制對象具有高階、滯后、耦合、非線性及參數時變的特點,難以利用有效的解析式數學模型進行閉環控制,以及多臺水泵並聯運行時,水泵電機由變頻電源供電向工頻電源供電切換過程中產生的過電壓過電流沖擊這兩個難題,提出了可調整因子fuzzy - pid控制演算法及利用鎖相環控制實現水泵電機由變頻電源向工頻電源的同頻同相平滑切換。By way of analysis of heat transfer process of the field - test model, the author formulated a 3 - dimensions heat transfer model which is correspondent to actual performance of buried pipe - in - pipe heat exchanger. coupled with field testing data, the short and long term operation features has been thoroughly analyzed by finite element solution and forward finite - difference analysis of the heat transfer differential equations of buried pipe - in - pipe heat exchanger. by interpreting regularity of continuous and intermittent operations of buried pipe - in - pipe heat exchanger, its heat transfer mechanism has been further explained in this thesis
本文通過對試驗模型熱過程的深入分析,建立了與實際地下埋管換熱器結構參數相吻合的三維傳熱數學模型,通過有限單元法和向前差分法求解相應微分方程並對分析結果進行關聯耦合,詳細分析了埋管換熱器的短期和長期運行特性,對地源熱泵套管式埋管換熱器連續運行、間斷運行規律進行了解析,進一步弄清了埋管換熱器的傳熱規律。The host pumps and the auxiliary pump adopt the hydraulic and pneumatic united drive, the movement is steadily, and the direction commutation is nimble and reliable
主泵和副泵分別採用液壓和氣壓聯合驅動,運行平穩,換向靈敏可靠。分享友人