详细研究了四头内螺纹管强化传热的效果。
The effectiveness of quadruple lead ribbed tubing in promoting heat transfer is extensively investigated.
文中结论对采用内螺纹管的电站锅炉水冷壁的设计具有较高的价值。
The conclusions of this paper are of important value to the power plant boiler water…
文中结论对采用内螺纹管的电站锅炉水冷壁的设计具有较高的价值。
The conclusions of this paper are of important value to the power plant boi…
对内螺纹管的强化传热效果进行了评价，分析了内螺纹管强化传热的机理。
The test results and performance of enhanced heat transfer in internally ribbed tube was evaluated.
本文介绍了在气水双相试验台上进行的国产四头内螺纹管中流动特性的试验情况。
In this article the test results of the flow characteristics of the two phase flow within a quadruple-lead ribbed tube on a test bed are described.
本文对氟利昂22在水平光滑管和内螺纹管内的流动沸腾换热特性进行了实验研究。
Flow boiling heat transfer characteristics in horizontal smooth tubes and internal grooved tubes of R22 are experimentally investigated.
内螺纹管滚珠旋压三维有限元模拟中，铜管的网格划分和滚珠加载方式是模拟的关键问题。
The mesh of copper tubes and loading ways of the balls are the key problems during three dimensional FE simulation of ball spinning of inner grooved tubes.
对煤油在内螺纹管中的单相紊流传热和摩擦阻力特性进行了实验研究，并将实验结果同煤油在光管中的实验结果作了比较。
Experiments on heat transfer and frictional pressure drop of kerosene of single phase flow in the internally ribbed tube were conducted and compared with those of smooth tube.
在大容量、亚临界自然循环锅炉蒸发系统设计中，有时不可避免地需要部份地采用价格昂贵的内螺纹管，以避免出现膜态沸腾。
In evaporating system design of large subcritical pressure natural circulation boiler sometime expensive rifled tube will be used unavoidably in part, so that the film boiling Can be avoided.
HIMOD系列旗舰型采用了交互“V型”盘管，采用了带内螺纹的铜管及冲缝型翅片，比采用传统式盘管的机组有更高的传热效率。
HIMOD flagship series USES interactive "type v" coil, the internal thread copper tube and punched slotted fin, and heat transfer efficiency is higher than the traditional coil unit.
在内螺纹的孔的顶端或者外螺纹的管的端部拥有相同的中径，而且拥有相同的螺纹长度和深度。
Both have the same pitch diameter at the top of the hole of internal threads or end of the pipe on external threads, and both have the same thread lengths or depths.
利用R 22单管传热试验台，对相同工况下不同结构参数的内螺纹强化管进行蒸发冷凝换热试验。
By using of the single tube laboratory for R22, tests and compares the evaporation and condensation heat transfer performance with different tooth profile parameters of inner-grooved tube.
照明装置至少包括带内螺纹的金属衬套、印刷电路板、发光二极管、微动开关、弹簧电极、电池及金属后盖。
The lighting device comprises at least a metal sleeve with a female thread, a printed circuit board, a LED, a microswitch, a spring electrode, a battery and a rear metal cover.
照明装置至少包括带内螺纹的金属衬套、印刷电路板、发光二极管、微动开关、弹簧电极、电池及金属后盖。
The lighting device comprises at least a metal sleeve with a female thread, a printed circuit board, a LED, a microswitch, a spring electrode, a battery and a rear metal cover.
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