燒針現象 的英文怎麼說
中文拼音 [shāozhēnxiànxiàng]
燒針現象
英文
needle cutting-
The way of taking one nth out of capacitor ' s the first harmonic capacitive reactance as its nth harmonic impedance is verified whit the data from tang7c. according to the approximately estimating method, the first harmonic impedance of 220kv system is calculated. on the basis of the models, this paper gives the harmonic equivalent circuit of substation and gives the b ( n ) function of the harmonic time n. when the capacitors has different combination, b ( n ) ' s value will also change, with the inputting local measurement data, the paper studies the series and parallel resonance at the substation, and deduces that the reason the capacitor ' s fuse of tang6c is frequently interrupted is that its capacitor current contains a large number of 5th harmonics, and that the reason the discharging pt of tang7c capacitor being exploded is also that the 7th and 9th harmonic currents are amplified
據此，對該站進行了串聯諧振分析和並聯諧振分析，並結合測試數據和有關變電站的運行記錄，指出了導致該站電容器湯6c頻繁燒保險的主要原因是5次諧波電流含量偏高，引起湯7c放電pt爆炸也是因為7次和9次諧波電流被放大。針對這些導致湯陰變電站補償電容器故障的原因，提出了相應的諧波治理措施，包括針對湯6c電容器5次諧波電流含量偏高的原因，提出了停運湯6c電容器或者通過把湯sc電容器的部分容量併入湯6c電容器（湯sc其餘部分停運）以增加湯6c諧波承受能力的措施;針對# 2變低壓側7次和9次諧波電流被放大的現象，提出了在湯7c電容器上加裝一定百分比的串聯電抗器的措施。This paper mainly analyzes the mechanism and reason about fallen down in ship exhaust gas boilers. and according to the research result and example analysis, some precautionary measures are given
摘要文章針對某輪船舶廢氣鍋爐燒塌的現象，系統分析了廢氣鍋爐燒塌的機理和原因，並根據該輪的實際情況提出了若干預防措施。2 on. the based of field data, the two objects, burner to temperature, blower and draught - fanner, to oxygen content and inner negative pressure, have been built model by the method of system identification
2 、在現場數據的基礎上，針對危險廢物焚燒過程中的兩個重點對象環節：燃燒室溫度控制、煙氣氧含量與爐膛負壓控制，採用系統辨識的方法建立了過程對象模型。The widely used mg alloy zm5 is chose as the original alloy. on the surface of the molten alloy, a layer of protective film with dense structure is formed by the addition of la, ce or mischmetal. the film prevents the penetration of oxygen and volatilization of mg vapor, and then prevents the zm5 alloy from oxidation and burning
針對目前廣泛應用的zm5鎂合金，通過添加稀土鑭、鈰和混合稀土，在鎂合金液面上形成一層結構緻密並且具有耐久性的保護膜，阻止氧氣的進一步侵入和鎂蒸氣的向外揮發，不再產生鎂的劇烈氧化燃燒現象。However, with the demand for environmental prelection inhancing, the emission which had not been taken into account is noticed now. in order to improve heater emission and performance and to meet the full needs of users and the development of futurel automobile environment pretection, the paper which uses qn700 air oil - heater as the research objective, theoretically analyzes, experimentally do researches, searches for the main emission source, and brings up efficient improving methods based on the process of combustion x the characteristics of exhaust. the principle of operation
為了使加熱器的燃燒排放性能更加完善，充分滿足用戶的使用要求和未來汽車環保要求發展的需要，本論文以國產大型客車廣泛使用的qn700型空氣燃油加熱器為研究對象（其燃燒結構和工作原理具有一定的典型性） ，針對這一典型的國產空氣燃油加熱器的燃燒過程、排放特性以及工作原理進行理論分析和試驗研究，找出主要污染源及其產生機理，並在此基礎上根據現有的結構提出有效的改進方案。Abstract : in one sintering plant, its no. 1 wagon tipper ' s track sur face occurred corrosive pitting and stacking only after short application, and th is effect the normal production seriously. in order to diagnose the plastic defor mation of the track surface, we made test and fem analysis to it, found the re ason of failure, and put out improving measure
文摘:某燒結廠1號翻車機在使用較短時間后，導軌表面出現點蝕和堆邊現象，嚴重影響正常生產.針對這一問題，對導軌表面塑性變形進行了實測和有限元分析，從而找出了故障原因並提出了改進措施分享友人