爐內負荷 的英文怎麼說
中文拼音 [lúnèifùhé]
爐內負荷
英文
furnace load-
This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation
本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。The simulation results show that the model can reflect the distribution of heat flow density under the dissimilarity load, and then made up the shortage of zero - dimension model and three - dimension model
通過在不同負荷下的模擬計算，說明了該模型能夠反映不同負荷下爐膛內的熱流密度分佈的不同，從而彌補了零維模型和三維模擬的不足。This program can predict the wall temperature 、 internal wall heat tranfer coefficient 、 fluid temperature and entropy profile along the water wall. all of these provide an important foundation for designing this type of water wall structure to ensure the safety of the boiler operation. this hydrodynamic calculation program and the results can be used to analyze operation reliability and structure design of water wall system
利用所開發的程序對設計的超臨界cfb進行了計算，給出不同負荷下，水冷壁出口工質溫度分佈，水冷壁受熱面不同位置處的金屬壁溫、內壁放熱系數、流體溫度焓值分佈，以及不同管子的流動壓降等結果，為分析鍋爐工作可靠性及水冷壁系統的結構設計提供了重要依據。Based on the accumulated engineering experience of cfb technology by tsinghua university, this paper develops a pseudo - static model to study the performance of a real 135mw cfb reheating boiler under partial load. this model is a semi - theoretical model in which some key parameters are according to the engineering experiences accumulated by department of thermal engineering, tsinghua university in the last fifteen years
本文在國內外已有研究成果基礎上，尤其是根據清華大學熱能工程系多年來致力於流化床燃煤技術的研究與開發所積累的豐富的工程經驗，採用準靜態模型化方法，對135mw再熱循環流化床鍋爐的部分負荷性能進行了研究。In this paper, the mechanism and practical effect of existing coordinated control schemes are analyzed in detail, the advantage and drawback of the different coordinated control methods in practice are indicated clearly. this paper describes a fact that it is difficult to obtain rapid load response and stable main parameters at the same time by using the recent methods, underlines that heat release is the vital parameter that should be carefully controlled
本篇在吸取了目前各種協調控制系統的優點的基礎上，提出了改進后的協調控制方案，主旨為以控制鍋爐的熱量釋放信號為核心，採用具有內在穩定特性的控制方案，充分加快機組的負荷響應速度，在機組所帶負荷已經接近當時的極限，及時限制輸出功率的增長，達到穩定機組的目的。When using electric heaters, ensure adequate indoor ventilation, and keep the heater away from the entrance, the corridor and combustibles. do not overload the electricity supply and avoid overheating, which may lead to fire or burn injuries
若選用電暖爐，一定要確保室內空氣流通，電暖爐要遠離門口通道或易燃物品並要避免電力負荷過重及小心過熱，以免發生火警或灼傷等意外。With fast development of our country " s gas industry and air ' s increasingly serious contamination in city, using gas instead of coal and supplying energy in high efficiency and cleanliness has become necessary way in city. there are different problems in the current heating ( air conditioning ) systems. in the cogeneration system, heat and power affect each other, heating - pump heating ( aie conditioning ) system can not satisfy the peak load very well, the cost of gas fuel in boilor heating sestem is so high. the high generating efficiency of the diesel - engine two - sourse heating ( air conditioning ) systems is limited in range of 100kw - 1000kw, the heating scope is so limited. combined cycle of two sourse heating ( air conditioning ) system is most suitable selection to buesness community with big scope my paper aim at this syetem ' s primary question when it is applied in our country - - - - bringing project into execution and technology economy feasibility and off - design performence, combined with a certain demonstrating project in beijing buesness community, going along with calculating and analyzing, drawing out some efficient datas and conclusions, based on this, bringing out primary alements affecting combined cycle of two sourse heating ( air conditioning ) system " economics
熱電聯產系統熱電相互牽連，熱泵供暖（空調）系統不容易很好地滿足尖峰負荷，鍋爐供暖系統供熱中天然氣燃料構成的成本過高，內燃機雙源供暖（空調）系統的高發電效率僅限於100kw - 1000kw負荷范圍，供熱面積有限。對于大面積的商業園區、居民小區，燃燒天然氣的燃氣-蒸汽聯合循環雙源供暖（空調）系統是最佳選擇之一。本論文針對該系統在我國應用時的主要問題- - -方案的技術實施與技術經濟可行性，結合北京某一商業園區示範工程，進行了系統的計算與分析，得到了有效的數據與結論，在此基礎上，提出影響聯合循環雙源供暖（空調）系統經濟性的主要因素，並進行敏感性分析，得出有益的結論；最後通過各種供暖方案的比較分析回答了某些人對該系統的疑慮和不解，並指出系統的優化方向。And the conclusion is that downing load can distory the small slag and outer part of thick slag, which is helpful to keep walltube clean and useless for preventing from furnace accident caused by slag
鍋爐降負荷運行有一定程度清潔爐膛水冷壁作用，能增強爐內傳熱，卻無法防止爐膛內結渣惡化發生嚴重事故。The research objective is to improve the control system performance through the combination of the advanced control strategy with the meaningful information mined from the history operation database. firstly, a new solution for the control performance enhancement is presented by the reference of the kdd technology. aiming at practical application, a novel boiler load control method, which combines the multiple model adaptive control strategy with the data mining technology, is put forward in this dissertation
本文第一部分為熱工過程式控制制與數據信息採掘，研究的重點是通過先進控制策略的應用以及運行數據中發掘的有用信息，提高現有典型熱工過程式控制制系統的性能，內容包括：首次提出了借鑒數據信息採掘技術的思路和方法，用於完善現有的熱力系統優化控制方案；在此基礎上結合生產實際，提出了運用多模型自適應策略實施鍋爐負荷控制，並利用關聯規則的數據信息採掘方法，通過對燃料發熱量信息的在線診斷，優化控制器結構，同時實現鍋爐燃燒配風的自適應調整，提高負荷、燃燒控制系統性能。The problem of coal fired boiler burning residue is common in many power plants. it is also unsolved critical problem for safe, economical and stable operation of power plants. during the last decades, this problem caused countless accidents in domestic power plants, they resulted in equipment damages, personal injuries or death, and even enomorous econoimic lose
幾十年來，國內燃煤電廠由於爐內結渣引起的各種設備、人身事故不計其數，輕則導致鍋爐低負荷運行或停爐清渣，產生巨大經濟損失，重則導致設備損壞，甚至引發人身事故。This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change
本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。As well, because of the development of national electric power industry, electric power supply is very enough, the popularize use of electrothermal boilers become possible the actual state of our country ' s electric power development makes the inactive standby capability of dynamos increased, ratio of electric power charge decreased, the difference of power transmission meshwork peak value and valley value become large
同時由於我國電力工業的迅速發展，電力供應十分充足，為電熱鍋爐的推廣使用創造了有利條件。國內電力發展的現狀造成了機組停機備用容量明顯增加、負荷率下降、峰谷差拉大，給電網的調峰帶來了一定的難度。分享友人