通煙試驗 的英文怎麼說
中文拼音 [tōngyānshìyàn]
通煙試驗
英文
smoke test-
Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. the actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24. 2 percent, and then the rating is demarcated, the smoke ejection falls by 53. 8 percent
本文針對75系列柴油機排煙嚴重的問題,通過改變噴油嘴及相關調整參數,利用多因素正交旋轉回歸設計安排試驗,取得了較好效果.在375型柴油機上的實驗結果表明:進行優化匹配調整后,最大扭矩點煙度下降24 . 2 ,標定工況時煙度下降53 . 8Analysis of experimental data indicates that there exist several following problems during the whole operation : first, the emission is serious and the density of hc and co smoke is very high at on and off period. second, there is oil dripping from the dripping vitta as a result of the fault of ignition system and combustion structure. the last, there might be accidents of disabled ignition resulted from the improper operation at the beginning
通過對樣機的試驗分析和研究表明,汽車空氣燃油加熱器在整個工作過程中,其排放存在以下三個問題:一、開機和關機兩個階段的排放問題嚴重,廢氣中hc和co的濃度值及煙度測量值都很高;二、因點火系統和燃燒結構的缺陷而導致開機后一段時間內有油滴從滴油管滴落;三、在點火過程中,會出現因操作不當而點火失效的現象。It is found that the appropriate lowering of the chamber temperature of water gas producer and the thickness of coal bed is favorable to controlling the volume fraction of o2 and co in the recovered flue gas
通過試驗與分析,發現適當降低水煤氣發生爐爐溫與煤層厚度,有利於控制回收煙氣中o2及co的體積分數。After thermodynamic calculation on several operation conditions of the furnace, cold - state flow and resistance mensuration, the combustion of the tubular - furnace hearth was changed into swirl and addition of radiate cylinder and oxygen content detection minish 1. 25 surplus air to less than 1. 15, improving the combustion condition and convection and radiate heat transfer efficacy, resuling in reducing the waste - gas temperature 45, decreasing exhaust gas loss, and saving fuel by 6 %
摘要通過對加熱爐幾種工況進行熱力計算、冷態試驗的流場分佈及阻力測定和熱態試驗的爐膛溫度場分佈及管壁溫度等參數的測定,確定將管式加熱爐爐膛內直流燃燒改為旋流場燃燒和增加輻射筒,增設煙氣含氧量分析,可以將燃燒的過剩空氣系數從1 . 35減小到1 . 15以下,極好地改善爐膛內的燃燒狀況和對流輻射傳熱效果,從而降低排煙溫度45 ,減少加熱爐排煙損失,節約了煤氣量6 %以上。This paper discussed the new producing craft of ink roll cleaner, tough experimental, it showed that this product is not only fit for the clean of press ink roll, but also fit for all cooking utensils and installation with greasy dirt, such as fume extractor, exhaust fan, etc
摘要介紹了墨轆清潔劑的生產新工藝,並通過試驗說明它不僅適用於印刷機墨轆的清潔,還可廣泛地用於抽油煙機、排氣扇等各種被油污廚具和設備的清潔。Abstract : during the heating of scrap with carbon or hydrocarbon contented substances in some process, it will bring problems like explosion of carbon monoxide, fume and smell from oil volatilization, etc. , if incomplete combustion occurs. through laboratory experiments, the time related variation of gas contents and post combustion ratio of fume during the heating of oil - bearing scrap are studied. the results show that the restrictive chain of reaction procedure is the thermolysis of oil ; that temperature and ( co ) / ( co2 ) ratio influence transformation ratio and post - combustion ratio under lower temperature ; that 900 is the temperature above which the complete reaction can be ensured at all ( co ) / ( co2 ) ratios
文摘:在某些廢鋼熔煉過程中,當爐料中含碳及碳氫物質且燃燒不充分時,會帶來煙氣中一氧化碳的燃爆、油污揮發時造成的煙霧、臭味等問題.通過實驗室裝置研究含油廢鋼在加熱過程中煙氣成分隨時間的改變以及二次燃燒率的變化,試驗結果表明,反應過程的限制性環節是油分的熱分解;在較低的溫度下( co ) / ( co2 )比例影響轉化率和二次燃燒率;而在任意比例下保證充分反應的溫度為900以上Using field plot test, the control effects of three microorganic nematicides : ipc, zk7 and 412 were tested from tobacco biological character, infection situation and economic properties
摘要為了確定3種微生物殺線蟲劑ipc , zk7 , 412對煙草根結線蟲病的防治效果,通過田間小區試驗,從對烤煙的生物學性狀、發病情況、經濟學性狀等方面進行了全面考察。Compositions and ratio of a series of formulas of smoke - producing mixtures are fixed by selecting experiments of metals, oxides and additives. results of the experiments have testified that mg, fe203 and ti02 are better than other metals and metal oxides
通過金屬粉的選擇試驗、氧化物選擇試驗、添加物質選擇試驗、其它發煙物質的選擇試驗以及配比調整試驗,確定了一系列發煙劑配方的組成及配比。The timing - and - quantitation precision injection of lpg was realized with high - speed lpg solenoid valve and a set of electronic control system, which was designed by the author and can flexibly control the gas supply system of lpg. based on the analysis of experimental data got by comparing the performances before and after the application of the set of equipment on lr6105q12 diesel engine, the effects of load, speed and replace ratio, etc on the emissions of smoke, hc and co of dual fuel engine were expounded. through optimization, the smoke emission was utmostly reduced and the emissions of hc and co were within the government restriction
為此,本文通過對各個方案進行詳細比較,選擇了電控多點順序噴射的供氣方案;利用高速lpg噴射閥和自己獨立開發出一套電子控制系統對lpg供氣進行靈活地控制,實現了lpg的定時定量噴射,並把這套裝置應用到中國一拖生產的lr6105q12柴油機上,在對改裝前後的發動機進行大量試驗和分析的基礎上,闡明了負荷、轉速、摻燒比等因素對雙燃料發動機的煙度、 hc 、 co等排放的影響情況,並且通過優化,最大限度地降低了發動機的煙度排放,同時使hc 、 co排放限制在國家標準規定的范圍之內。Experimental study was performed to determine the moderate water deficit effect and physiological irrigation index of tobacco with lysimeters by controlling the lower limit of soil water content
摘要為確定煙草的適度虧水效應及煙草水分生理灌溉指標,進行了煙草蒸滲儀試驗,通過控制土壤水分下限研究煙草的適度虧水效應。Numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區Abstract : numerical simulation by cfd was carried out to understand the hot current behavior in a tunnel with longitudinal ventilation. it becomes clear that fire source modeling is very important because the hot current behavior is strongly affected by the fire source position and is sensitive to methods in the modeling of the fire source. the flame area which has developed from the fire source is an area of chemical reaction caused by combustion. even if grids in the vicinity of the fire source are made fine, it was difficult to simulate the heat generation area with consideration to this chemical reaction through using a method for setting the heat release rate simply on the fire source surface. therefore, we proposed a method adopting the knowledge on flame shape under the longitudinal ventilation and incorporating it into numerical simulation and it showed a good agreement with the experimental results. it was shown through experiments in a tunnel with longitudinal ventilation that the hot current developed toward the tunnel center downwind from the fire source near a wall. the cause was investigated by numerical simulation and it became clear from the results that the spiral air by the fire plume created a vortex in the crevice between the wall and the plume
文摘:運用cfd進行數字模擬,以了解縱向通風隧道內熱煙氣流的特性.通過模擬發現對火源進行模擬非常重要,熱煙氣流特性受火源位置的影響很大,並且對火源模擬方法很敏感.火源生成的火焰區是燃燒引起的化學反應區域.即使火源附近的木垛排列完好,也很難在考慮這些化學反應條件下模擬熱生成區域.建議考慮縱向通風隧道內火焰形狀並對它進行數字模擬.模擬結果與試驗結果非常吻合.試驗證明,在縱向通風隧道內,熱煙氣流從靠近墻體火源處順風向隧道中心蔓延.數字模擬結果發現,火災羽流造成的螺旋上升空氣會在墻體和羽流之間形成一個渦流區The main works have been done as follow : ( 1 ) after a great deal of literatures are read, the paper introduces the main ways of the flue gas desulfurization, and the development status of dcs ; ( 2 ) through the analysis of the former dcs system in the plant, the desire about the rebuilding of dcs is put ; the characteristic of the planning dcs system is introduced ; ( 3 ) according to the characteristic of the wet limestone - gypsum flue gas desulfurization, the main factor about influencing the efficiency of desulfurization is analyzed ; ( 4 ) some tests are done, which are the reduction and enhancement of the flue gas quantity, and the disturbing test of the starting and stoping the circulation of the serum in the absorbing tower. the paper lists some actual run curves
本文完成了以下主要工作:在閱讀了大量文獻資料的基礎上,介紹了火電廠煙氣脫硫的主要方法,以及dcs的發展狀況;通過對本廠脫硫裝置原有dcs系統的分析,提出了對dcs改造的要求;介紹了擬選擇dcs的特點;根據濕式石灰石石膏法煙氣脫硫的特點,分析了影響系統脫硫效率的主要因素;進行了吸收塔煙氣量減少、增加,啟停吸收塔漿液循環泵擾動試驗,並給出了部分實際運行曲線。In this study, a series of plant expression vectors were constructed to comparing the expression level of ctb / cs3 in different organs, and transformed by co - cultivating leafdisc with agrobacterium strains lba4404 harboring target vector
為了優化表達系統,本試驗構建了分別將ctb cs3蛋白定位於細胞質、細胞間質和內質網的pbinctbatg cstaa 、 pbinctbsp cstaa 、 pbinctbsp cskdel植物表達載體及對照載體pbinctbatg cskdel ,分別通過農桿菌介導法轉化煙草。Endophytic bacteria are ubiquitous in most plant species, residing latently or actively colonizing plant tissues locally as well as systemically, and do not visibly harm the plant. in this study, the population dynamics and biodiversity of endophytic bacteria from seeds, roots, stems and leaves of seven tobacco cultivars were examined at different plant developmental stages, and the antagonistic activities of the endophytic bacteria against four tobacco fungal pathogens in vitro were also examined
本研究以七個田間種植的煙草品種( k326 , k346 , rg11 , g28 , nc89 ,紅大,雲煙85 )的種子、根、莖、葉為試驗材料,通過嚴格表面消毒處理後分離內生細菌,對7個品種整個生育期中內生細菌的種群及其動態進行了定量和定性分析。Draft regulators for chimneys ; concepts safety requirements, testing, marking
煙囪的通風調節裝置.概念安全性要求試驗和標記The deficient mill output has been finally resolved by two renovation programs for the classifier and the central air pipe of d - 12 - d double - in and double - out mill, one of the biggest pulverizes ; higher ah inlet gas temperature and exhaust gas temperature also rectified by refractory modification and the tuning of sootblower " s running mode
對世界最大的d - 12 - d雙進雙出磨煤機的分離器和磨煤機中心風管等部位通過兩種方案的改造試驗最終解決了該磨煤機的出力不足問題;通過對衛燃帶改造和調整吹灰器的運行方式解決了空預器入口煙溫和排煙溫度高的問題。However, the mechanism for the later is not clear yet. our preliminary experiments suggested that extracellular calmodulin might be involved in rbcs gene expression in the dark. in order to provide direct evidence that extracellular calmodulin activated rbcs transcription in a light - independent manner, we intended to get the transgenic plants carrying light - dependent and - independent rbcs promoter fused to a reporter gene
如果細胞外鈣調素確實是光不依賴型rbcs基因暗中表達的誘導因子,它對其mrna水平的影響應是通過提高其轉錄水平即調節其啟動子活性實現的,我們計劃以轉番茄rbcs3a - gusa和rbcs3c - gusa的煙草懸浮培養細胞系為試驗材料進一步證實這一點。Under different rev and loads, the optimal diesel / alcohol proportion would be different. in order to find out the change rule of optimal diesel / alcohol proportion, an orthogonal regression rotating experiment of three factors ( rev, diesel / alcohol proportion and load ) at five levels has been carried out. based on the experiment, four regression equations including energy consumption, soot emission, noise level, and power equations concerning the three factors have been established
在性能試驗的基礎上,還進行了三因素五水平的二次正交回歸旋轉組合試驗,建立了能耗率、煙度、噪聲、功率與轉速、酒精摻燒率及負荷率之間的回歸模型,通過分析可知,這些模型具有較高的可信度;利用這些模型,本文最後對不同工況下的最佳酒精摻燒率進行優化分析,並利用正交多項式回歸,求出了最佳摻燒率與轉速、負荷之間的回歸模型,該模型在今後的深入研究中將起到一定的指導作用。Test method for specific optical density of smoke generated by solid materials
通過固體材料對煙霧產生的特定視覺密度的試驗方法分享友人