裂化行業 的英文怎麼說
中文拼音 [lièhuàhángyè]
裂化行業
英文
fragmented industry-
Abstract : large time delay exists in complicated practical processes. for example, in fccu ( fluidized catalytic cracker unit ) reactor - regenerator, the feed is preheated through heat exchanging from fractional column slurry, thus results in large time delay. a predictive control system is designed for such processes, where the kernal algorithm is dynamic matrix control. application results show that the control behavior is improved than original pid control
文摘:實際的復雜工業過程，往往具有大的時滯，例如：煉油廠催化裂化裝置的反應再生系統，其原料油預熱通過油漿換熱實現，因此時滯特別大.本文針對這一類大的時滯過程，設計了以動態矩陣控制為核心演算法的預測控制系統，運行實踐表明：這一控制方案比原pid控制在控制質量上有較大提高The application of rupture mechanics and remanufacturing technology is very important not only to petrochemistry industry but also to the life - prolong of equipment
石油化工行業對于斷裂力學和再製造技術的應用極為重要，對設備延壽有重要意義。There is an old saying in our field - " no dam is not crackable ". the crack is mainly because of the bad dilation after " alkali - aggregate reaction ", the temperature traverse inside and outside the concrete with the happening of heat evolution and the shrink of volume due to the cooling of concrete
水電行業有句「無壩不裂」的俗話，產生裂縫的原因主要有「堿集料反應」造成的破壞性膨脹，水泥水化過程中放出的熱量出現的混凝土內外溫度梯度和水泥石硬化後由於後期降溫發生的體積收縮等造成。Ghg - electrical grade activated silica powder is produced by way of mingling on the basis of electrical grade silica powder. it has activt effect on surface & make silica powder mingled with resin, raise cohesive force between resin & silica powder, raise the water - resestance on the sunface and the compressive strength of pour object, reduce sediment, gradation & split, increase filler of silica powder, and replaced inpoted products on the producing line of imported dry type transfomer & high tension mutual induc tance equiment, it has been the best pouring insulate materual in electrical trade
電工級活性硅微粉是在電工級硅微粉的基礎上進行偶聯化處理而製成，具有表面活性作用，能使用硅微粉與樹脂發生交聯，提高樹脂與硅微粉的粘結力和界面增水性，提高澆注體抗沖擊強度，減少沉澱、分層、開裂現象，增加硅微粉的填充量，在引進的乾式變壓器、高壓互感器生產線上已成功地代替了進口產品，成為電工行業理想的環氧澆注絕緣材料。To verify the effectiveness of the proposed hybrid fnn, this thesis addressed the estimation problem for the frozen point of light cyclic oil in a fluidized catalytic cracking unit ( fccu ) in a refinery. based on the sample data collected from the industrial unit, we built a soft sensor model by using an above hybrid fnn
最後，針對某煉油廠催化裂化裝置主分餾塔輕柴油凝固點的軟測量估計問題，本文基於工業現場所採集的樣本數據，建立了混合結構神經網路模型，並討論該模型的在線自學習問題，同時與多層前向bp網路、徑向基函數rbf網路模型進行了比較。The first part comprises industrial pta oxidation process modeling, residual fluid catalytic cracking process modeling, complex distillation modeling and analysis, the application of pta oxidation process soft - sensor technology. in the second one, the infeasibility degree based genetic algorithm is proposed to handle constrained optimization problem in engineering cases and the neighborhood and archive based genetic algorithm and its variant are proposed to treat the multi - objective optimization problem. with that, the pta oxidation process is regarded as a benchmark for the application of the proposed multi - objective optimization genetic algorithm
論文內容分為兩部分，第一部分對包括三個典型的工業過程， pta氧化反應器、渣油催化裂化反應系統和復合式精餾塔進行分析、建模以及pta氧化過程的軟測量工程實施；第二部分分別提出了基於進化演算法解決工業過程中普遍存在的約束優化問題和多目標優化問題的過程優化演算法? ?基於不可行度選擇遺傳演算法和基於鄰域和存檔操作遺傳演算法，並利用該演算法對工業pta氧化過程操作進行多目標優化研究。Abstract : 145 samples of eight plants were collected from lanmuchang and yangjiawan and quantitative analyses were made of the ore - forming elements in the plant ashes. considering the three principles of the plant indicator for mineral exploration, namely certainty, sensitivity and feasibility, this paper evaluates comprehensively the indicating functions of the eight plants, on the basis of some quantitative indexes such as the relation coefficient between plant ash and ore - forming element, concentration coefficient, etc. it also discusses the relationships between the anomaly of plant ashes and the fault zone, alteration zone mineralization zone and orebody, showing the significance of these plants to the prospecting
文摘:在濫木廠和楊家灣鉈（汞）礦床（點）對芒箕、南燭、榔榆、大金發蘚、蜈蚣草、石松、黃花草、醉魚草等8種植物取樣145件，在提出確定找礦有效指示植物三原則（確定性，敏感性，可行性）的基礎上，依據植物灰分與底質成礦元素相關系數、植物灰分富集系數和襯度系數，較全面地分析和評價了8種植物的找礦功能；討論了其異常的分佈與斷裂帶、蝕變帶、礦化帶以及工業礦化（礦體）之間的關系，並指出了其找礦意義。By using the method of fault tree analysis, this paper analyses the causes of fire and explosion of catalying & cracking reactor and regeneration, draws the fault trees of fire and explosion accidents of catalyzing & cracking reactor and regeneration respectively, calculates the structure importance, makes the structure importance arrangement according to the structure importance and the least path set, puts forward the prevention measures, and provides the reliable theoretical basis for the safety control of enterprises
摘要應用故障樹分析方法，對催化裂化反應器和催化裂化再生器發生火災（爆炸）事故的原因進行分析，分別畫出催化裂化反應器和催化裂化再生器發生火災（爆炸）事故的故障樹，得出最小徑集合，並計算其結構重要度，根據得出的最小徑集合及其結構重要度進行排序，提出預防措施，為企業的安全管理提供了可靠的理論依據。Tar content in the gas was influenced by the gasification conditions, such as the gasification temperature, residence time of feedstock in the gasifier and the type of feedstock, which can help us to investigate the mechanism of tar production in gasification process. catalytic cracking of tar was performed in a downstream secondary fixed - bed cracker with dolomite, limestone and alumina brick as catalysts. by comparison, thermal cracking of tar was also performed with silica carbide
在固定床二級催化裂化反應器上，實驗了白雲石、石灰石、高鋁磚等幾種催化劑作用下的焦油催化裂化過程以及炭化硅作用下的熱裂化過程，並對裂化溫度（ 650 950 ） 、氣相停留時間（ 0 . 5 1s ）和催化劑類型等過程參數對焦油轉化效果和熱解煤氣的影響進行了分析，對各種催化劑材料的性能進行了比較，力爭開發出可適用於工業化生物質氣化系統的焦油催化裂化技術。Many equipments experience elevated temperature in the power generation, petroleum and chemical industry. high temperature fatigue failures often take place in these equipments and structures
在火電、核電、石油化工等多個行業中，許多構件是處于高溫狀態，且承受波動載荷的作用，構件經常發生疲勞斷裂破壞。To study the series wdl steel ? property of probability fracture mechanics, it is not only the foundation of safety assessment and probability analysis to pressure vessel but also the foundation of the study of assessment criterion on pressure vessel
對wdl鋼種進行系列規范性的概率斷裂力學試驗研究，不僅為壓力容器的安全評定和可靠性分析打下基礎，同時為壓力容器評定規范研究打下基礎。特別是對首都周圍的石化企業中的壓力容器安全評定研究。On the one hand, the performance criterion like gas production rate, tar content and operation mode has reached the commercialization level presently. on the other hand, studies on gas clarification and tar cracking technologies have been performed to optimize its technological and economic performance further. first of all, after a brief introduction to the concept of bioenergy and the common technologies adopted for its utilization, a review of current researches and developments of biomass gasification technologies is given
通過中試試驗研究，改進了該技術在產氣速率、焦油含量、運行模式等方面的性能指標，使之達到了可商業化水平；同時，結合集中供氣示範工程的設計，在完善焦油取樣測量技術的基礎上，開展了燃氣凈化和焦油催化裂解技術研究，進一步提高了該技術的技術經濟性能，為今後使該技術應用於氣化發電奠定了良好基礎。The cumulative damage modes and their distribution regions on 7t / 4 quasi - isotropic laminates were reasonably simulated and the predicted fatigue lives agree well with the test results. residual strength evaluation is playing a significant role in damage tolerance analysis of structures. chapter 4 describes a simple procedure for the evaluation of residual strength of metallic structures with cracks developed b
提出按剩餘西北工業大學博士學位論文:飛機結構疲勞和斷裂分析中若干問題的研究強度等效和按疲勞壽命等效兩種途徑將撞擊損傷當量化為表面裂紋，並根據有限的試驗結果進行了嘗試，得到了一些初步結果。At present, the distance of the pipelines running in the industry of oil refining, petrol - chemistry and electricity in china is around 500, 000 kilometres. the majority of them last one or two decades, gradually resulting in the summit of accidents with various degrees of erosion and cracks
我國石油、化工等行業的在役油氣長輸管道總長約50萬公里，其中大部分管道已使用10 ? 20年以上，出現不同程度的腐蝕、裂紋等缺陷，逐漸進入事故高發期。Crack generation in laser - clad coatings is the most difficult problem t o be solved before massive application of this technology. in order to seek out effective methods for eliminating or reducing crack generation, we carried out systemic experiments and mechanism analyses on the design of laser cladding materials, the exploration of laser cladding technique, the interaction between laser and materials, the microstructure and properties of the coatings
針對阻礙激光熔覆技術工業化推廣應用進程的主要問題之一的熔覆層裂紋問題，為尋求該問題的有效解決方法，從熔覆材料體系的設計、熔覆工藝的探索和規范以及在工藝規范條件下激光與熔覆材料的相互作用關系、塗層組織和性能到工件表面的最後強化和改性效果，進行了系統實驗研究和機理分析。Although is requests comprehensively to the information gain, but needs to have the key point, more importantly may not separate the pure information but the independent existence, the enterprise is also must pay great attention to in the construction information, does not want simply to separate carries on the analysis, but must carry on the overall situation plan
雖然對信息的獲取是要求全面的，但是更需要有重點，更重要的是不可割裂單純的信息而單獨的存在，企業在建設信息化是也要注重，不要簡單的割裂進行分析，而要進行全局規劃。Esd based on chemical catalytic model is founded and the factors affecting the enterprises " sustainable development are specified. through analyzing organization property of esd, a conclusion is drawn that employee ' s extensive participation and elastic net structure could make the organization respond to external circumstance precisely and quickly. how the main four platforms affect esd is analyzed by construction of esd ' s dynamic supporting mechanism
構建了企業可持續發展化學催化模型，對影響企業發展的要素進行了定位分析；通過對企業可持續發展的組織特性進行分析，得出了員工廣泛參與式管理和彈性式的網路結構可以使組織對外部環境的快速準確響應的結論；通過建立esd動態支撐機制，分析了四大平臺是如何影響企業持續發展的；最後，結合對稱破裂原理分析了整合管理模型對esd研究的重要意義。分享友人