滑塊泵 的英文怎麼說
中文拼音 [gǔkuāibèng]
滑塊泵
英文
shuttle block pump-
Aim of this study was to meet the need for development of tribological parts in pumps. at room temperature tribological properties of different sliding pairs of silicon carbide and alumina - based ceramics were tested using a laboratory tribometer in the ring - on - plate geometry under reciprocating sliding linear contact in different media, such as distilled water, aggressive media and air
本文針對目前泵用摩擦零部件材料發展的需要，在實驗室摩擦磨損試驗機上研究了按環/塊線接觸方式作往復運動條件下的碳化硅和氧化鋁基陶瓷材料摩擦副在水、化學腐蝕性介質作潤滑劑和無潤滑時室溫下的摩擦磨損特性。The control precision of the slider with 2400mm effective stroke can reach 0. 05mm. the properties of the position control system are not exigent, only the dynamic non - overshooting and the stable - state - precision are considered. the system has given out satisfactory result when used in practical engineering, 0. 03mm position control precision has been achieved, on account of dead band, the performance of proportional valve is worse than that of servo valve, but some advantages of proportional valve has made it more fit for industrial control
系統方案採用重復性能（反向回差）好的比例方向閥，使有效行程為2400mm的滑塊控制精度達到0 . 05mm ，位控系統快速性要求不高，主要考慮系統穩態重復精度，此方案在實際工程中已經取得了滿意的效果，位置控制精度達到0 . 03mm ，可以取代同類產品中日本川崎重工的泵控系統。The mainly works had been done as follows : 1. in order to keep commonality, the modules who have similar thermodynamic process had been classed. such as evaporating module ( including furnace, drum, system of boiler recycled water ), single - phase heat exchange module ( including superheater, reheater, ecomomizer ), lubricating oil system module ( can be used for any lubricating oil system of rotation mechanical impedance ), pump and fan module, ect
本文所作的主要工作如下: 1 、為保證模塊的通用性，對鍋爐有相似熱力環節的模塊進行分類，建立模塊庫，便於模塊調用，如蒸發區模塊（包括爐膛、汽包和爐水循環系統） ，單相換熱模塊（包括過熱器，再熱器，省煤器等） ，潤滑油系統模塊（可用於各種轉機軸承潤滑油的動態特性的計算） ，泵與風機的動態計算模塊等。A flap vlave used in pumping station is a kind of hydraulic - operated automatic gate, which is similar to a hinged check vaive. because of their simple structure and reliability, being able to shorten the length of outlet passage and facilitate the starting of pumping system in comparison with siphonic vacuum - distroied cutoff scheme. so it is propitious to be used and save investment but at the same time, flap valves always show some disadvantage
因拍門簡單、可靠，與虹吸真空破壞截流閉鎖方式相比，可以縮短出水管道（流道）長度，並利於泵系統起動，與快速閘門相比，拍門也有諸多優點，閘門門體易關閉不到位或卡住不能活動，因為門槽和?塊較軸孔容易殘留異物，閘門門體克服滑動阻力不僅無機械增益，且阻力和動力不在一直線上，門體易傾斜而自鎖，而拍門的工作可靠性則遠高於快速閘門。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。分享友人