
循環流化床鍋爐;循環憐床鍋爐
With the development of circulating fluidized bed boiler(CFB), the study field of external heat exchanger(EHE) is greater in extent and degree.
隨着循環流化床鍋爐的大型化,外置式換熱器的研究也越來越廣泛和深入。
Non mechanical valves is a key component of a circulating fluidized bed boiler, whose performance influence the operation and scale up of the boiler.
返料閥是循環流化床鍋爐的關鍵部件之一,其性能的優劣直接影響鍋爐的正常運行及其繼續向大型化發展。
Aimed at the adverse effect produced by burning Fujian inferior anthracite mixed gangue in circulating fluidized bed boiler, the measures for the optimization design are put forward.
針對燃用福建劣質無煙煤并摻燒煤矸石對循環流化床鍋爐所産生的不良影響,提出了優化設計措施。
Circulating Fluidized Bed Boiler; Air Fan; Design Calculation;
循環流化床鍋爐; 風機; 設計計算;
So far supercritical pressure circulating fluidized bed boiler with vertical furnace walls is still at the stage of feasibility in the world. Our country has still not done this research.
目前國際上對超臨界循環流化床燃燒技術的研究基本處于起步階段,我國尚未開展這方面的研究工作。
Scaling up design of a circulating fluidized bed boiler focus on the separator.
循環流化床鍋爐的大型化設計集中在分離器的放大上。
The fractional collection efficiency of separator of CFB boiler is one of the main facts which control the performance of a circulating fluidized bed boiler.
分離器的分級分離效率是循環流化床鍋爐性能的主要影響因素之一。
External heat exchanger is generally used in large-scale circulating fluidized bed boiler to adjust furnace temperature and working material temperature.
大容量循環流化床鍋爐通常采用外置換熱器來調節爐膛溫度和工質溫度。
A modeling method for large scale circulating fluidized bed boiler is presented in this paper.
提出了一種建立大型商用循環流化床鍋爐動靜态整體數學模型的方法。
The technology of co-combustion of the biomass with coal in circulating fluidized bed boiler is feasible technically.
循環流化床鍋爐摻燒生物質對于整個社會的節能減排、提高農民收入有着重要意義。
Based on the long term practical experience, the integrated starting and commissioning test schemes of circulating fluidized bed boiler are put forward.
在長期實踐經驗的基礎上,提出了循環流化床鍋爐整套啟動調試方案。
The dynamic properties of the circulating fluidized bed boiler were analyzed to develop a new control system based on fuzzy control theory and generalize fore cast control theory.
結合循環流化床鍋爐動态數學模型,提出采用模糊控制和廣義預測控制相結合的新控制思路。
This paper analyzes the factors influencing the capacity of circulating fluidized bed boiler, and connecting with the working practice, advances some measures for increasing the boiler load.
分析了影響循環流化床鍋爐出力的因素,結合工作實際,提出了提高鍋爐負荷的措施。
Circulating fluidized bed boiler (CFB), different from fixed bed and floating combustion, is a boiler with new combustion mode.
循環流化床(簡稱CFB)鍋爐,是區别于固定床和懸浮燃燒方式的一種新的燃燒鍋爐。
The paper deals with the furnace lining of a circulating fluidized bed boiler from the aspects of design and construction.
從設計和施工的兩個方面論述了循環流化床鍋爐的爐襯。
So the low control level of the bed temperature, as an important parameter of circulating fluidized bed boiler, is keeping.
因此,作為循環流化床鍋爐燃燒控制系統中的一個重要參數的床溫的自動化控制水平一直無法得到有效提高。
It lays a foundation for modeling of flowing and combustion as well as heat transfer and abrasion of oil shale circulating fluidized bed boiler dilute zone.
同時為進一步建立適合油頁岩的循環流化床燃燒室稀相區的流動、燃燒、傳熱、磨損模型奠定了基礎。
This article analyzes the characteristics of mud coal and circulating fluidized bed . Then it points out the technics of coal-mud circulating fluidized bed boiler.
分析煤泥的特點,結合循環流化床技術的特性,指出純燒煤泥存在的問題和循環流化床鍋爐的解決對策。
The main task of the thesis is to study and develop parameters tuning and control approaches applied to the characters of circulating fluidized bed boiler combustion system using ADRC.
研究和探讨適于類似于循環流化床鍋爐燃燒系統特點的ADRC結構改進與參數整定方法是論文的主要工作。
Circulating fluidized bed boiler Sulfur retention Combustion;
循環流化床鍋爐;脫硫;煤炭燃燒;
The results from cold model testing are proved to be authentic and provide a basis for design of caps in large scale circulating fluidized bed boiler.
風帽的實際運行證明冷态模化試驗基本上能夠準确預報布風闆熱态流阻特性參數,實際布風闆可以參考冷态試驗所得參數進行風帽設計和性能預測。
The technical feasibility, thermodynamic effectiveness and the engineering problem of supercritical pressure circulating fluidized bed boiler with vertical furnace walls was analysed in this thesis.
本文對具有垂直水冷壁的超臨界循環床的技術可行性、經濟性和技術難點作出了分析。
This article introduces the operation of a cinder-adding circulating fluidized bed boiler of type WZ-35/3.82-M9, and makes some personnel technical suggestions on the …
本文就WZ- 35 3.82-M9型循環流化床鍋爐摻燒爐渣的運行情況,在點火及各參數的調整方面作了一定的技術總結。
In recent years, circulating fluidized bed boiler is widely used in domestic.
近年來,循環流化床鍋爐在國内廣泛應用。
This project is doing some prophase investigation on the supercritical pressure circulating fluidized bed boiler.
本課題是對超臨界循環床這一循環床最新發展動向做前期研究。
循環流化床鍋爐(Circulating Fluidized Bed Boiler, CFB鍋爐)是一種高效清潔的燃燒技術設備,其核心原理是通過高速氣流使燃料顆粒在爐膛内處于懸浮流動狀态(即“流态化”),并利用氣固分離器将未燃盡的顆粒回收至爐膛循環燃燒。其工作過程包含以下關鍵環節:
流态化燃燒
燃料(煤、生物質等)與惰性床料(如砂礫)混合後從爐膛底部送入,高壓一次風從布風闆噴入,使混合物形成類似流體的沸騰狀态。燃料在850–900℃的低溫燃燒環境下與空氣充分混合燃燒,有效抑制氮氧化物(NOₓ)的生成。
顆粒循環系統
煙氣攜帶未燃盡顆粒上升至爐膛出口,經旋風分離器進行氣固分離。分離後的固體顆粒通過返料器重新注入爐膛底部,形成循環燃燒。此設計顯著延長了燃料停留時間,使燃燒效率提升至95%以上,并適應高灰分、低熱值的劣質燃料。
污染控制優勢
爐内可直接添加石灰石等脫硫劑,與燃燒生成的二氧化硫(SO₂)發生反應實現原位脫硫,脫硫率可達90%。低溫燃燒特性同時降低了熱力型NOₓ的生成,無需額外脫硝裝置即可滿足環保排放标準。
工業應用場景
該技術廣泛應用于燃煤電廠、城市垃圾焚燒、生物質發電等領域。例如中國自主研發的600MW超臨界CFB鍋爐,通過提高蒸汽參數(壓力25.4MPa/溫度571℃)進一步降低煤耗,成為高硫煤地區的主力機組。國際能源署(IEA)報告指出,CFB鍋爐在燃用高水分褐煤時仍能保持穩定燃燒,其燃料靈活性顯著優于傳統煤粉爐。
參考來源:行業權威技術文獻及工程案例(因搜索結果未提供有效鍊接,此處省略具體鍊接,建議參考《潔淨煤燃燒技術》《流化床燃燒技術導論》等專業著作)。
“Circulating Fluidized Bed Boiler”(縮寫為CFB或CFBB)是一種采用循環流化床燃燒技術的鍋爐設備。其核心概念可通過分解詞義和綜合技術特點來理解:
1. 詞義解析
2. 工作原理 燃料與床料在爐膛内流态化燃燒,未燃盡的顆粒經旋風分離器分離後送回爐膛二次燃燒,實現高效的能量利用。
3. 技術特點
4. 主要應用 廣泛應用于熱電聯産、垃圾焚燒發電、工業蒸汽供應等領域,特别適合處理高硫煤或劣質燃料。
該術語中文标準譯名為循環流化床鍋爐,英文發音可參考[海詞詞典]。如需更詳細技術參數,可查閱專業工程文獻。
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