排灌站 的英文怎麼說
中文拼音 [bèiguànzhàn]
排灌站
英文
drainage and irrigation station-
The international commission on irrigation and drainage ( icid ) was established on 24 june, 1950 as a scientific, technical and voluntary not - for - profit non - governmental international organization ( ngo ) with headquarters in new delhi, india
描述:這是國際灌溉與排水委員會網站，主要介紹了不同國家灌溉的發展趨勢，介紹了法國，西班牙等國家農業灌溉的高新技術。Large - sized pump stations are rapidly developed in china. during 1960s, people constructed a lot of pump stations for irrigation and drainage in rural areas. in 1980s, pump stations were built for water - supply
大型泵站在我國發展很快，從六十年代為了排澇和灌溉而修建的泵站工程開始，發展到八十年代，逐步向城鄉供水為目的大型泵站建設。Through the combination of the theory and practice, the necessity about economical operation of pumping station is more explicate than ever
通過理論與實際的結合，進一步明確了排灌站經濟運行的必要性。On the point of system, this paper mainly studies the optimal distribution of load in the machines of irrigation and drainage pumping station, the mathematical model and it ' s solution are studied among the machines in pumping station with two types of axial pump : full regulation or semi - regulation. this paper also studies the problems of the optimal day - operation of pumping station and the economical operation of grading pumping station. at the end, jiangdu pumping station is taken as a practical example to show the theory on economical operation of irrigation and drainage pumping station
本文從系統的觀點出發，以排灌站機組間負荷的優化分配研究為主，分別對全調節和半調節軸流泵兩種泵型的排灌站機組間負荷優化分配的數學模型及其求解方法進行了研究，同時對排灌站最優日運行方式及梯級泵站的經濟運行也進行了初步探索，最後以江都排灌站為例，建立了排灌站經濟運行的實用模型。Mainly, the type of pump in the large - scale irrigation and drainage pumping station in our country is adjustable - blade propeller pump. we can regulate the pump ' s blade mounting angle following the variation of water level at the inlet and outlet of the station in order to control the discharge of pump, we also determine the number of running machines with machine ' s optimal combination. so we can reduce its energy consumption, and make it optimally and economically run
我國大部分大型電力排灌站所安裝的泵都為可調節葉片的軸流泵，這一有利條件使我們可以根據排灌站進、出口水位的變化來調節水泵的葉片角度，控制水泵的流量，併合理的確定開機臺數，通過機組間的優化組合，使整個泵站的能耗最少，達到整體最優、經濟運行的目的。China is a large country with complex natural conditions. there are much inconsistency between the distributing of water resource and the requirement of industry, agriculture and life on time and space. pumping station is very important in the delivery, supply of water resource, especially the large - scale irrigation and drainage pumping station, which has very important contribution in fighting droughts and waterloggings
我國地域遼闊，自然條件復雜，水資源在時間和空間上的分佈與工農業及生活的用水需求存在很多矛盾，泵站在水資源調配及工農業供水等方面起著十分重要的作用，尤其是泵站中較典型的大型排灌站，在抗旱排澇、減輕災害中發揮著巨大的功能。Abstract : this paper discusses the method of adjustable speed driving with bi - directional power transferring converter for motors used in draining and irrigating pumps, a control strategy is proposed to realize super / hyper synchronous speed running with ac - ac converter, and a design for the driver is given based on 16 bit micro - controller
文摘:針對農用電力排灌站電機調速改造問題，討論了雙饋調速實施方案，提出了採用交交變頻實現超/低同步調速的一種控制方法，給出了以高性能16位單片機為核心的雙饋調速控制系統軟硬體設計One side, groovy cast steel flap valves increase the head loss, waste electricity, the other side, when flap valves close, it always delay time because of it ' s low proportion. the bump load seriously threaten the safety of pumping station. through the research and development of flap valve used in the renovation practices in the design of air - filled floating flap valve in no. 1 chuhe pumping station of anhui province, the working characteristics and design methods of air - filled floating flap valve are studied in this paper
但在拍門運行使用的同時，又時常暴露出一些缺陷，主要有：一是常規的鑄鐵或鑄鋼拍門加大了流道的水頭損失，特別是對于裝機容量較大的排澇泵站，其電能損耗相當可觀；二是拍門在自重下下落關閉時，往往由於過多考慮水頭損失導致浮重過小而延誤閉門時間，致使水體倒灌，再因緩沖裝置失靈導致閉門時門體對門框撞擊力很大，嚴重危及站身安全。A series of products made by skysea company are widely applied to industries such as severely - polluted sewage discharge in factories and businesses, sewage discharge of residential areas, civil air - defense drainage station, hospitals, farm irrigation, printing and dyeing, equipment cooling, food, environmental protection, chemical engineering, petroleum, pharmacy, mining, paper making, power plant, coal and oil processing, steel, shipbuilding, ceramics, leather manufacture, drainage system of city sewage disposal, municipal engineering and construction field. they have got a favorable reception from clients
天海系列產品被廣泛應用於工廠商業嚴重污染廢水排放、住宅區的污水排放、人防系統排水站、醫院、農田灌溉、印染、設備冷卻、食品、環保、化工、石油、制藥、采礦、造紙、電廠、污水排放、煤油加工工業、鋼鐵工業、造船工業、陶瓷工業、製革工業，以及城市污水處理廠排水系統，市政工程，建築工地等行業深受客戶好評。Abstract : the authors that the variable frequency speed is applicable and economic only in some range to the irrigation and drainage pumping station at the present time
文摘:文中通過對灌排泵站採用變頻調速的適用性及經濟性進行分析研究，提出目前灌排泵站採用變頻調速並非具有廣泛適用性，該調節方式僅在一定適用范圍內具有經濟合理性。Therefore, if urban rainwater can be utilized to recharge groundwater, it not only can supply decreasing groundwater resource and prevent ground sedimentation a nd elevate groundwater level, but also can reduce expense of function and investment to drainpipe in city and lessen flood and waterlogging disaster at rainstorm
因此，若能利用城市匯集的雨水回灌地下不僅可以補充日益匱乏的地下水資源、阻止或減緩地面下沉、提高地下水位，同時還可以通過分流部分雨水減少城市排水管道和泵站的投資以及運行費用，並可減輕暴雨時洪澇災害的發生。( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward
（ 2 ）採用有限元離散?優化法進行參數的反演分析； （ 3 ）針對深埋隧洞的高外水壓力問題，進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法； （ 4 ）以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象，採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬，並對其外水壓力進行了分析和研究，提出了滲流控制的具體措施。This view has some reference value to the adjusting method of the irrigation and drainage pumping station
此觀點對灌排泵站選擇調節方式具有一定借鑒意義。To counter the above mentioned problems, this thesis is based on the practical situation of pump station operation to analyse its operation cost. the operation cost of pump stations consists of fixed and variable parts. to find the fixed and variable cost, the idea of investment allotment method ( iam ) is introduced to obtain the depreciation cost which is the main part of fixed cost
本論文針對上述兩方面問題，從我國大型泵站實際情況出發，對具有雙重功能? ?供水（含灌溉） 、排澇功能的泵站進行成本分析，提出投資分攤方法來解決固定成本中的固定資產折舊費問題，而用優化調度手段來推求泵站運行成本中的變動成本核心? ?抽水耗電費用。S, sh series pumps are splitacase centrifugal punps. they can pump clear water and liquid with chemical composition similar to water without solid temperature of liquid is limited to 80 degrees to centigrade. thesepumps can be used for water supply to projects
Sh系列泵是中開式離心泵，供輸送清水及理化性質類似於水，不含固體顆粒的液體之用，液體最高溫度不超過80 ，適用於工廠、礦山、城市、電站的給排水及農田排灌和各種水利工程。分享友人