直接受熱面 的英文怎麼說
中文拼音 [zhíjiēshòurèmiàn]
直接受熱面
英文
direct heating surface-
The paper mainly consider the followings : the performance parameter determination of cryopump, heat load determination and heat transfer of large cryopanel, reasonable distribution of heat load, the condition for construct steady flow in small vertical circle pipeline, balance condition for gas and liquid two - phase flow in the connection pipe between cryopanel and dewar, the safety of cryopump
文中探討了低溫泵性能參數的確定；大抽速低溫抽氣面的熱負載的確定及合理分配；冷凝面上豎直圓管內受熱建立穩定流動的條件；冷凝面與杜瓦間的連接管道內氣液「雙相流動」的平衡條件；低溫泵系統運行的安全問題。From the feature of the force and deformation of the tpih, 5 different elements are used to mesh the different zones of the tube, which are structural beam 3d elastic 4, structural pipe plastic straight 20, structural pipe elastic elbow 18, structural shell elastic 4 node 63 and contact 3d pt - to - surf 49 ; the contact problem is assumed to be flexible - to - flexible ; the temperature field is assumed to be body load. a mechanical model corresponding to reality has been established for numerical simulation. based on the above, the 3 - d fem numerical simulation of tpih has been carried out by using the ansys program
針對加熱彎管過程的受力和變形特點，採用三維梁單元、三維塑性直管單元、三維彈性曲管單元、三維殼單元與三維點對面接觸單元等5種不同的單元分別對管毛坯不同區域進行劃分，並對接觸單元採用柔體-柔體的處理方法，將溫度場作為體載荷處理，建立了符合實際的加熱彎管問題數值模擬力學模型：在此基礎上，應用商用軟體ansys對加熱彎管過程進行三維有限元模擬與研究，獲得了成形時推力、彎矩、支撐力大小及其變化趨勢。Superheater, reheater and economizer are the main component of the heat exchangers in boiler. whether they run safely and stably or not is directly count for much the safe of the whole plant operation. and the frequent tube leakage of heat surface impact upon the economy benefits and the society benefits of the power plant
水冷壁管、過熱器管、再熱器管、省煤器管（ 「四管」 ）是鍋爐內部的主要受熱面結構件，它們是否安全穩定的運行直接關繫到整個電廠的安危，頻繁爆漏事故影響了電廠的經濟效益和社會效益。The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )
浸入式電加熱器主要用於直接對流體接觸加熱的場合，具有熱交換快，熱效率高等特點，分為水用加熱器、油用加熱器、氣體用加熱器，加熱元件的功率密度：即電加熱元件單位發熱面積上的功率，它是電加熱元件極重要的參數，直接影響加熱器的使用性能及使用壽命，它的取值是一個非常專業的問題，受到許多因素的影響（如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等） 。Along with national macroscopic control, the market of road project becomes more and more competitive, such as the price of contract is worse. the industry is threshed by three market injections, that is increasing material price, the lowest acceptance and cash guarantee. the above make the industries of road project under the situation of the lower profit and harder capital running and greater competition pressure
隨著國家的宏觀調控，公路工程建築市場競爭日愈加劇，其承包價格戰進入了白熱化階段，而且自2003年以來，還不斷受到建築原材料價格上漲、最低價中標制度、現金保證金制度三個市場因素的嚴酷沖擊，直接導致公路工程施工企業利潤大幅下滑和資金運轉困難，企業面臨極大的競爭壓力，生存環境不容樂觀。Pettitte will be subjected to heat and ice therapy to make that possible, and the team is encouraged even by small signs such as pettitte ' s ability to sit upright on the trainer ' s table
小派將會接受冷熱敷治療讓星期五能夠上場，洋基也因為小派能夠在訓練桌上面坐直等等的小小象徵而倍受鼓舞。Since dtc has been developed for nearly 20 years as a ac drive technology, it has become the most popular technology in the field of ac drive for its advantages of direct control, short adjusting time and unsensitive with the motor parameters
而在電機控制技術方面，直接轉矩控製作為近年來新發展起來的一種電機控制方法，已顯示巨大的優越性，具有控制思想直接、反應快速、受電機參數影響小的優點，成為目前研究的熱點。The tubes of superheater and reheater are the main component of the heat exchangers in power plant boilers. whether they run safely and stably or not is directly count for much the safe of the whole plant operation
電站鍋爐過熱器管和再熱器管是鍋爐內部的主要受熱面結構件，它們是否安全穩定地運行直接關繫到整個電廠的安危，頻繁爆管事故影響了電廠的經濟效益和社會效益。分享友人