進氣外殼 的英文怎麼說
中文拼音 [jìnqìwàiké]
進氣外殼
英文
air inlet housing-
We have put large amounts of money on scientific research and acquired enviable achievements. our company is the first state - run enterprise that invents metal shell heat eliminating technology, heat insulating mattress and multi - stabilizer driving technology to solve the heat eliminating problem of high - power energy saving lamps. we produce various types of energy saving lamps from 3w - 240w, which are widely used to instead of industrial lighting lamps like metallic halogen lamp, sodium lamp and auto - stabilized high - pressure hydrargyrum lamp. our company has passed the iso9001 : 2000 quality certification
聖路電器是一家專業生產大功率節能燈的高素質公司，在科研開發上進行了大量的投入並取得了卓越的成績，率先發明金屬外殼散熱隔熱空氣墊及多鎮流器推動技術，很好的解決了大功率節能燈的散熱問題，可生產3w240w的各型節能燈，廣泛用於替代金屬鹵化燈鈉燈自鎮流高壓汞燈等工業照明用燈。It is designed according to electrical stove or microwave oven request. heating pipe adopts high temperature resistance mgo powder as the insulation medium and the stainless steel case is passed oxidation deal through the advanced web band protection oven 1050c in order to become the a special oxidation layer and improve the high temperature oxidation and bittern corrosive performance of the heating pipe. the heating tube has high power density and strong heat radion. this product with good safe performance can work normally after 3000hrs life test
加熱管選用耐高溫氧化鎂作絕緣介質，不銹鋼外殼經過先進的網帶氣體保護爐1050的氧化處理，形成一種特殊的氧化層，提高電熱管的抗高溫氧化及鹽鹵的腐蝕性能。電熱管的功率密度較高，熱輻射能力強。產品經長達3000h的壽命試驗后，仍能正常工作，安全性能好。Fine applicability : it uses imported alloy of hardness as enclosure, ensures the product ' s resistance to shock and impact. with fine water - proof and temperature - proof property, it can be used in underwater 200m and hostile weather
適用性強:進口高硬度合金外殼能承受強力碰撞和沖擊;防水、耐高溫、高濕性能好，可各種惡劣氣候條件下正常工作The porous diffusion type silencer is widely used to reduce the air flow noise because of its small volume and high noise attenuating ability. the out case of the silencer plays a very important role in reducing noise. the effect of the hole ' s shape, diameter and the distance between neighboring holes as well as the matchup between the case and the sound absorbing material tube are investigated experimentally. the relation between the out - flow noise and the gas velocity distribution is carefully studied for two different kinds of matchup between the case and the sound absorbing material tube. some useful results are gotten, which may be valuable to the design of the silencer
多孔擴散型消聲器由於其體積小、消聲性能高而廣泛應用到排氣噪聲的降低上，其外殼對消聲器的消聲性能具有重要作用.本文對此類消聲器外殼的孔型、孔徑和孔距以及外殼同消聲材料的配合方面進行了細致的實驗研究，特別對外殼與消聲材料的配合與其排放噪聲以及外部流場之間的關系進行了探討，得到了一些有用的結論，對消聲器性能的提高具有一定指導意義。This series for air conditioner is used for assistant heating in air conditioner. the heater is mainly composed by heating pipe, firm housing, temperature controlling tube, heat fuse and protecting web cover and other components. the heater is made trough advanced technology by adopting high quality stainless steel as the case, high resistor ni - cr alloy wire as the heating material and electrical melting mgo powder as the insulation medium. its electric performance index is much higher than the industry standard and the quality is leading an advanced position in the industry domestically
熱熔斷器及防護網罩等零部件組成。電熱管採用優質不銹鋼作外殼。用高電阻鎳鉻合金絲為發熱材料，以電熔氧化鎂粉作絕緣介質，經過先進的生產工藝製作而成，其電氣性能指標遠高於行業標準，產品品質領先於國內同行業水平。The reason that the noise is lower with inclining tongue is : 1 ) both the radius of the tongue and the gap between the tongue and the blade are changed across the wideth ; 2 ) the phase angle between blade and the tongue is changed across the wideth, therefore the peak value of the noise do not appear at the same time, so the peak value of the noise with inclining tongue is much lower than the straight one. the influence of the expanded angle of the shell of the fan on the noise was invested experimentally, and the optimal angle was got
傾斜蝸舌降噪的主要原因是：一是改變了從氣流入口側到風機輪盤的蝸舌間隙和蝸舌半徑；二是改變了葉輪與蝸舌非定常相互作用的相位差，使其產生噪聲也有相位差，迭加的結果進一步降低了噪聲。另外，試驗研究了不同蝸殼擴張角對風機噪聲及效率的影響規律，蝸殼擴張角選擇當否，對效率和噪聲影響較大。The main content of this paper contains : summarizing the foundational theory of vibration and noise, and establishing the analysis and computation flow chart of noise acoustic field of mechanical vibration ; taking a close drum shell as the research object, analyzing its dynamic characteristics and vibration response using finite element method, then going with the structural - acoustic coupling analysis based on the acoustic model analysis of the aerial intracavity of the close drum shell
論文的主要內容包括：對振動和噪聲的基礎理論進行了概述，並建立了結構振動噪聲聲場分析計算的流程圖。以封閉鼓形薄殼為分析對象，運用有限元法分析了其的動態特性及振動響應；同時在分析了封閉鼓形薄殼空氣內腔的聲學模態的基礎上，對其進行了聲固耦合分析；並作了該結構模型的外場聲固耦合諧響應分析。分享友人