coke n. 科克〔姓氏〕。 n. 焦(炭)。 mineral coke天然焦。 a coke oven 炼焦炉。 vt. 把…炼制成焦炭。 vi. 炼焦;成焦炭。 n. 1.〔俚语〕=cocaine. 2.〔美口〕可口可乐(=coca-cola)。 go and eat coke 别作打扰别人的事[少管闲事]。
drum n. 1.鼓。 2.鼓声,击鼓般的声音;麻?的叫声;〔古语〕鼓手。 3.鼓状物;圆桶,汽油桶;【机械工程】滚筒,鼓轮;卷线轴;绕线架;【建筑】(作石柱用的)鼓形石块;(支持圆屋顶的)鼓形墙壁;【解剖学】鼓室;鼓膜;中耳;【动物;动物学】鼓形共鸣器;(自动步枪的)转盘弹匣。 4.〔古语〕夜会;(午后)茶会。 5.【动物;动物学】(发出鼓声的)石首鱼。 play [beat] the drum 击鼓。 a double drum 双面鼓。 a drum of running feet 奔跑的脚步声。 the drum of a cicada 蝉的共鸣器官。 a dozen drums of lubricating oils 十二桶润滑油。 beat [rattle] the [a] big drum(for about) 为…鼓吹,为…做广告。 beat the drum 宣传。 with drums beating and colours flying 军容威武。 vt. (-mm-) 1. 咚咚地敲打,连打,打响。 2. 敲鼓奏(曲),敲出(曲调)。 3. 生硬地教给(学问)。 4. 〔美俚〕敲鼓招揽;鼓励,奖励。 drum a march 击鼓奏进行曲。 drum a rhythm for dancers 为跳舞的人击出鼓点。 drum one's fingers on the desk 用手指敲桌子。 drum sb. from his work 敲鼓把某人从工作岗位上召来。 drum sb. into action 鼓动某人行动。 drum Latin into a boy 硬叫孩子学拉丁文。 vi. 1.敲鼓,咚咚地敲。 2.(鸟、昆虫振动翅膀等)发出嗡嗡声。 3.奔走招募;鼓吹 (for)。 drum at the door 咚咚咚地敲门。 drum on the floor 咚咚咚地踏响地板。 The rain drummed. 雨声滴答。 drum for a new film 为新影片做广告。 a drumming in the ears 耳鸣。 drum down (击鼓)使静默。 drum out 轰走;开除 (be drummed out of the university 被开除出大学)。 drum up 1. 招揽(顾客等);招募(新兵等)。 2. 鼓励;激起 (drum up recruits 招募新兵。 drum up customers 招揽顾客。 drum up enthusiasm for the new policies 激起支持新政策的热情)。 n. =drumlin.
Analysis of water flow rate during cooling operation of coke drum 焦炭塔冷焦水流量的分析
The stress analysis of temperature field and thermal stress field on coke drum 储液容器直线匀加速运动时相对静止液体的受力分析
The calculation results indicate that the outboard of drum walls fall in plastic yielding at the same time the rising cooling water reaches the height of that point and the yield region becomes narrower and narrower when it comes closer to the circumferential strake weldments , which explains the reason coke drums experience bulging and cracks occur in the weld seams portions of shell to shell after long in service 计算结果表明:塔壁外侧在冷却水面到达的瞬间进入塑性屈服,筒节中部塑性屈服区较大,当靠近焊缝时塔壁的塑性变形区逐渐缩小直至消失,塔壁塑性屈服区的分布特点解释了塔体长期使用后发生鼓凸变形及简体与焊缝连接处产生裂纹的原因。
In this paper , the high - temperature low - cycle fatigue life and fatigue crack propagation life tests are carried on the cylindrical axial symmetry specimens having precrack or non - precrack with different types of notches of 16mnr steel in common use in the petrochemical industry contacting coke drum equipment , the stress / strain and the range of stress / strain of dangerous points are received through stress analysis of the specimens using finite element program under multi - axial stress state . at last , the equations of evaluating the high - temperature low - cycle fatigue life and the fatigue crack propagation life are found through using the least - square regression method 本文采用无预裂纹和带预裂纹环状缺口圆柱形试样,进行了石化焦炭塔设备常用材料16mnr多维应力状态下不同缺口形式的高温低周疲劳总寿命试验及裂纹扩展寿命试验,并利用有限元程序对试样缺口周围及裂纹尖端附近进行了轴对称多维应力状态下的应力、应变场分析,来评价材料不同条件下的高温低周疲劳总寿命和裂纹扩展寿命,最后利用最小二乘回归方法,得到了该材料高温低周疲劳总寿命和裂纹扩展寿命评价方程。