1)helical rib螺旋肋片
1.In order to investigate the mechanism of enhancing heat transfer efficiency by helical rib,3D models of double-tube and tube-bundle heat exchangers are set up respectively using FLUENT software.结果表明,螺旋肋片强化传热的主要机理是螺旋肋片引起的螺旋流动使流体流速提高并产生二次流,减薄了速度边界层,促进了主流流体和边界层流体的掺混;换热管之间螺旋流动的相互影响进一步提高了换热器的传热系数;螺旋肋片的螺旋角和流体雷诺数对壳程努塞尔数和压降产生显著影响,应将螺旋角和雷诺数限制在一定的范围内。
2.In order to investigate the integrated performance of the helical ribbed heat exchanger (HRHE),the three-dimension models with single period of the heat exchanger were set up.为了研究螺旋肋片换热器的综合性能,建立了单周期三维模型,通过模拟得到了螺旋肋片换热器壳程内流场和温度场,并分析了换热器综合性能的影响因素。
英文短句/例句
1.polyzonal spiral fuel element多区状螺旋肋片燃料元件
2.Effect of Helix-Alike Fin Surface Shape on Flow and Heat Transfer in the Internal Cooling Passage肋片几何形状对仿螺旋肋片内冷通道流动与换热的影响
3.Numerical analysis on turbulent flow and heat transfer in helix-alike internal cooling passage仿螺旋肋片内冷通道流动与传热数值分析
4.Study on Turbulent Flow and Heat Transfer in Internal Cooling Passage with Helix-alike Fins;仿螺旋肋片内冷通道流动与换热特性研究
5.Research on Spiral Finned Tubes in Application of the Low Temperature Reheater of 670t/h Coal-fired Boiler;螺旋肋片管在670t/h锅炉低温再热器应用的研究
6.internal ribbed tube内肋片管,内螺纹管
7.the raised helical rib going around a screw.绕着螺丝的凸起的螺旋状的肋纹。
8.the whirl of the propeller blades螺旋桨叶片的旋转.
9.Imaging-Anatomic Study of Diaphragmatic Lumbocostale and Ternocostal Triangle with Double-phase 16-row MDCT;膈肌胸肋三角和腰肋三角双相16层螺旋CT影像解剖研究
10.high frequency welded spiral fin tube高频焊接螺旋翅片管
11.adjustable blade可调叶片可调螺旋桨叶
12.spiral welded-on wing stabilizer焊接螺旋翼片式稳定器
13.sectional flight conveyer分组螺旋叶片式输送器
14.spiral valve tray带螺旋叶片的浮阀塔板
15.Flow Boiling Heat Transfer and Flow Patterns in Three-Dimensional Micro-finned Helically Coiled Tube;三维微肋螺旋管内流动沸腾传热与流型
16.The Two-phase Flow and Boiling Heat Transfer in 3-D Micro-fin Helical Tube;三维微肋螺旋管内的两相流动与沸腾传热
17.Drawing fracture cause analysis of wire rod for spiral ribbed pre-stressed steel wire螺旋肋预应力钢丝用盘条拉拔断裂原因分析
18.Experimental study on flexural strengthening of RC beams with near surface mounted helical rib steel wire内嵌螺旋肋钢丝抗弯加固混凝土梁试验研究
相关短句/例句
helix-alike fins仿螺旋肋片
1.Study on Turbulent Flow and Heat Transfer in Internal Cooling Passage with Helix-alike Fins;仿螺旋肋片内冷通道流动与换热特性研究
2.Results were presented for all internal cooling duct geometric parameter to be fixed except the angle between the helix-alike fins and the streamwise flow direction(namely the helix-alike fin leading angle in this paper).利用数值模拟方法分析了矩形仿螺旋肋片内冷通道中肋片导流角度对内冷通道三维流场特性、换热特性以及流动阻力特性的影响。
3)spiral finned tube螺旋肋片管
1.That spiral finned tube has a more compact structure.指出采用螺旋肋片管可使锅炉结构更为紧凑 ;在设计中应充分考虑受热面的积灰、低温腐蚀和振动问题 ,以保证余热锅炉的正常运行 。
2.This paper introduces application of spiral finned tube low temperature reheater,measures of replacing engineering and the innovative scheme for primary reheater of No.介绍了螺旋肋片管在锅炉低温再热器中的应用、更换改造的施工措施以及新余电厂 1号炉低温再热器改造的方案和取得的效果。
3.This article presents a instroduction of applying spiral fine - enhanced heat transfer technology to improve the reheating steam temperature of 670t/h coal - fired boiler in Longkou Power Station and description of the design, construction, Performances, manufacture and operation of the spiral finned tube low temperature reheater are made in detaile.报道了龙口电厂应用螺旋肋片管强化换热技术提高 670t/h锅炉再热汽温的情况。
4)spiral-finned tube bank螺旋肋片管束
1.The experimental investigation for contamination factor of spiral-finned tube bank is carried out.进行了螺旋肋片管束的工业性试验研究,得出了不同横、纵向相对节距的螺旋肋片管束的沾污系数与烟速的拟合关联式,可应用于锅炉的受热面设计及运行分析。
5)screwy fins螺旋辐射肋片
6)helical finning螺旋形肋片加工
延伸阅读
氨酚伪麻片(日片)与氨苯伪麻片(夜片)药物名称:氨酚伪麻片(日片)与氨苯伪麻片(夜片)英文名:Compound paracetamol Combination Tablets汉语拼音:主要成分:日服片:对乙酰氨基酚、盐酸伪麻黄碱;夜服片:对乙酰氨基酚、盐酸伪麻黄碱、盐酸苯海拉明。性状:日服片为白色,夜服片为蓝色。药理作用:动物试验表明本品具有解热、镇痛、镇静作用,另可降低鼻气道阻力及粘膜血管的通透性。药代动力学:适应症:用于治疗感冒引起的发热、头痛、四肢疼痛、鼻塞、流涕、喷嚏等症状。用法与用量: 白天服日服片,每日二次(8小时一次),每次1~2片。 晚上睡前服用夜服片,一日一次,每次1片。不良反应:偶见。为轻度口干、口苦、上腹不适、困倦、多汗等。禁忌症:对(包括日服片和夜服片)组分过敏者禁用。注意事项: 1.每日不超过8片,疗程不超过7天。超量服用可产生头晕、失眠、神经质等症状。 2.心脏病、高血压、甲亢、糖尿病、青光眼、肺气肿等呼吸困难、前列腺肥大伴排尿困难者不宜服用。 3.避免与降压药或抗抑郁药同时服用,服药期间避免饮酒。 4.孕妇、哺乳期妇女使用前应咨询医生。 5.服用本品若症状未改善或伴高热,应及时停药。 6.对麻黄碱药理作用敏感者及老年人慎用。12岁以下儿童不宜服用。 7.夜用片服药期间可引起头晕、嗜睡,故不宜驾车、高空作业及操纵机器。规格:每片含 日服片 夜服片 对乙酰氨基酚 0.325g 0.5g 盐酸伪麻黄碱 30mg 30mg 盐酸苯海拉明贮藏:遮光,密闭保存。有效期:暂定二年。处方药:是