泵壓不穩 的英文怎麼說
中文拼音 [bèngyābùwěn]
泵壓不穩
英文
the pumpressure is fluctuating-
Presents the steady - state programming with constant coolant average temperature and constant live steam pressure, an ideal programming for marine nuclear power plant ( npp ), under which, both the coolant average temperature and the live steam pressure of nuclear steam supply system ( nsss ) are constant when the steady state operating condition is varied, and points out that in comparison with the steadysate programming with constant coolant average temperature, the ideal programming can improve the overall operating performance of npp effectively, especially in low - load range, for instance, raise the heat efficiency of npp, decrease the operating noise of main coolant pump, and improve the conditions of design, operation and control of the secondary loop system
雙恆定運行方案是船用壓水堆核動力裝置的理想運行方案.在這種運行方案下，當裝置穩態功率變化時，冷卻劑平均溫度與蒸汽壓都保持不變，與通常採用的冷卻劑平均溫度恆定運行方案相比，有效地改善了核動力裝置的總體運行性能，特別是在低負荷運行時，可以提高裝置經濟性、降低主泵運行噪聲、改善二迴路系統的設計、運行和控制條件，這對于提高船用核動力裝置的運行可靠性和安全性具有實際意義The pump pressure is fluctuating
泵壓不穩The pressure of pressure stabilizing pump will be settled on the basis of its delivery head which is not calculated but determined by the delivery head of main fire pump as the function of it is to stabilize the pressure inside the fire water system
穩壓泵的壓力設定值決定於穩壓泵揚程，穩壓泵的揚程一般不另行計算，而是採用消防主泵的揚程，其原因在於設置穩壓泵的目的是使消防給水管網的水壓穩定。A method based on the application of an injection process analysis software is introduced in this article, which optimize injection process through changing the design of fuel - injection pump cam. a model of 1115 single cylinder direct injection diesel engine is used as an example. with the help of pre - journey optimization, increasing cam lift and using tangent - function can make the matching of the injection system with the diesel more reasonable. without changing fuel pump installing size, it can enhance injection rate and injection pressure and improve the diesel operating stability in low speed condition
本文以國產1115型單缸直噴柴油機為例，介紹一種應用噴油過程分析軟體改進噴油泵凸輪設計的方法，通過增大噴油泵凸輪升程、採用切線函數凸輪並優化預行程的方式，在不改變噴油泵安裝尺寸的前提下，可提高噴油壓力和噴油速率，改善柴油機低速工作穩定性，使噴油系統與柴油機匹配更合理。Through the statistic analysis on the change of the melt gear pump working condition pre - and post - pet plant capacity increasing and concatenate direct spinning process, the reasons for the unsteady running were studied, the modification measures such as lubricating the oil groove with sliding bearing, mechanical sealing of the gear pump, decreasing the gear pump outlet pressure, changing the automatic speed increasing to hand speed increasing were put forward
摘要通過對聚酯裝置增容和後接直紡長絲前後熔體齒輪泵工況變化的統計分析，研究其運行不穩定的原因，提出改造措施，包括滑動軸承潤滑油槽，齒輪泵的機械密封，降低齒輪泵出口壓力，改自動提速為手動提速等等。A new concept to determine the delivery head of the pump and to set up the pressure of the system is proposed in this paper, based on the precondition to ensure the water head demand of any fire appliance at the most unfavorable point
從保證最不利處滅火設施水壓要求這一基本前提出發，提出確定穩壓泵揚程和設定壓力的新思路，並按3種情況分別作出說明。But the platform has some problems as follows : first, the seawater quality of the sea where the oil field is located is so special that it is difficult to make the treated seawater achieve the injection index. second, the supply of seawater injection of the oil field is more than the demand, and the surplus is drained directly to the sea by circumfluence that makes seawater resources, energy resources and medicament for seawater treatment waste. and third, it is very difficult for the pumps to realize constant pressure injection because there is no distributing room for seawater injection in the sea
但目前該平臺所存在的問題是：由於油田所處海域海水水質特殊，使得處理后的海水難以達到入注指標；再者，目前的油田注水供大於需，經水處理工藝處理后的海水，其多餘部分採取迴流措施排海，造成水源、能源和水處理藥劑的浪費；此外，由於海上注水無配水間分水，造成注水泵機組不能實現平穩增壓注水。Among them the flow pulse is more standing - out, which is the main reason of its not more widely used. because high flow pulse will lead to the worse of the smooth movement of hydraulic motor and pipe, also cause pressure pulse which lead to a high noise, and give the destructive damage to the axial, bearing, valve, the connect of pipe etc. how to make the flow pulse low has become the research of scholars of many country
其中流量脈動問題顯得尤其突出，它嚴重製約著齒輪泵的應用，因為泵的流量脈動大，不僅會使液壓缸運動的平穩性、液壓馬達回轉的均勻性性變差，而且會引起壓力脈動，進而使管道、閥門乃至整個系統振動（特別是在共振時） ，並發出很強的噪聲，這對軸、軸承、管接頭及密封都有破壞性影響。The new unit has following technical features : ( 1 ) the unit ' s load is balanced by means of the accumulator and hydraulic cylinder with special structure ; ( 2 ) the installed power of the unit can be reduced greatly by adopting the accumulator ; ( 3 ) variable frequency speed regulation ensures good energy saving effect, and the closed oil circuit requires less hydraulic oil ; ( 4 ) a bi - directional hydraulic lock in the oil circuit ensures the stability and safety of the operation of the pumping unit
新型機具有4個技術特點： （ 1 ）由於活塞柱塞式液壓缸的特殊結構和液壓蓄能器的配合使用，在平衡抽油機大部分載荷時，不需另外增加配重，可減小抽油機體積、質量和佔地面積； （ 2 ）抽油機下沖程時，與活塞柱塞式液壓缸相連接的蓄能器吸收能量，上沖程時儲存在蓄能器中的能量補充載荷上行所需的能量，大幅度降低抽油機裝機功率； （ 3 ）利用變頻容積調速節能效率高，閉式油路節省液壓油，同時大大減小液壓泵站的體積； （ 4 ）在閉式油路中採用雙向液壓鎖可使抽油機的啟停更加平穩、迅速，其工作的穩定性和安全性更好。Most of present study of 3 - d revolve intake is mainly on the self - intake state. that is to study the air flow in different valve lift, but there is no relative report on the turbo operating conditions in our country
在氣道穩態試驗時，當進氣壓力增加到大於20 . 4kpa后，真空泵就不能正常的工作而使得吸氣壓力達不到試驗的要求。Emcut 135 is used as receives. the constant, controlled oil pressure and proper filtration will be important factors to offer a smooth operation and eliminate the unnecessary pump wear
Emcut 135使用時，穩定、適宜的油壓控制與適當的過濾設計，將是確保順利操作與避免泵浦不當磨損的重要因素。分享友人