| 1. | Experimental study on frictional flow resistance in water wall tubes of a 600 mw supercritical once - through boiler
直流锅炉水冷壁管阻力特性的试验研究 |
| 2. | Thereby , more and more attentions and researching were given on the problem of the high temperature corrosion of the water wall tubes of the boiler recently
因此，近年来，人们对锅炉水冷壁高温腐蚀问题给予了很多关注，不断的深入研究和解决高温腐蚀问题。 |
| 3. | Passing the cold air - dynamic test , thermal efficiency test and practical running , we can conclude the technology is viable in setting the high temperature corrosion of the water wall tubes of boiler and increase thermal efficiency ect
从冷态空气动力场试验、热态效率试验和实际运行方面出发，验证此项技术在解决锅炉水冷壁高温腐蚀以及提高锅炉热效率等方面的可行性。 |
| 4. | However , researching of the high temperature corrosion is limited in engineering now , only judged by the corrosion products of the water wall tubes , more in - depth researching is lack about the corrosion mechanism and the course of reaction
但是，目前人们对高温腐蚀的研究局限于工程实践的研究，只能根据水冷壁管的腐蚀产物来作出判断，而对其腐蚀机理以及反应过程缺乏进一步深入的研究。 |
| 5. | The water wall tubes were leaked by the high temperature corrosions , which put the boiler units shut down and made the safety and economy operation of the power plants effected severely , which also made the safety generation and dispatch of the all power network effected severely
锅炉水冷壁高温腐蚀造成水冷壁管爆漏，迫使锅炉停机，严重影响了电厂运行的安全性和经济性，对整个电网的安全生产和调度也造成了严重的后果。 |
| 6. | In the industry of thermal power plants , boiler tubes , especially water wall tubes in enginery of over 300mw , water wall tubes are easily corroded in high temperature and wore by dust when the coal with high content sulphur is used , which made water wall tubes become thin and burst
在火力发电行业中，燃煤锅炉管特别是300mw及以上机组的水冷壁管在燃用高硫含量煤时，易受到严重的高温腐蚀和飞灰的磨损，使管壁减薄导致爆管事故。 |
| 7. | The coatings deposited with a new subsonic flame spraying possess high bonding strength , low porosity and is low costly , at the same time , it is applied to the worksite of boiler tubes specially . the coatings applied to water wall tubes were deposited by subsonic flame spraying in this study
本课题采用了一种新型亚音速火焰喷涂技术制备锅炉水冷壁管道涂层，其涂层不仅结合强度高、孔隙率较低，而且涂层制备的成本低，特别适用于锅炉水冷壁管的现场喷涂。 |
| 8. | Increscent weight of oxidation , graphic and micrographic were explored , meanwhile , the mechanism of anti - erosion and wear - resistant of new coating material are also studied . at last , a program applied to calculate the temperature distribution and heat transmission between water wall tubes with sprayed coatings and metal anti - erosion tile was developed by use of visual basic
文中最后采用vb6语言计算机编程，计算了不同材料涂层对锅炉水冷壁管的传热效果及径向温度梯度的影响，同时与加装了防护瓦和未加任何防护的水冷壁管进行了比较。 |
| 9. | But the paper set out form the lab , the conditions of the temperature of the water wall tubes and the ambience of the furnace is imitated in lab , the material of sample is adopted by the steel of the water wall tubes of the boiler , which made the test conditions approach to the fact work conditions of the water wall tubes of the boiler and made the imitation accurate
本文则从实验室出发，在实验室模仿锅炉水冷壁的温度条件和炉膛气氛条件，采用锅炉水冷壁用钢( 20g )作为试样材质，尽可能接近锅炉水冷壁的实际工作条件以达到模仿的效果。 |
| 10. | In the aspect of thermal spraying processes the main techniques applied to water wall tubes include flame spray , arc spraying , plasma spray and high velocity oxy - fuel spray ( hvof ) . flame spray possesses the characteristics of simple equipment , easy of use and low operating cost , but the coating adhesive strength is low , and porosity and oxidation is high
在喷涂工艺方面，制备管道涂层的方法主要有火焰喷涂、电弧喷涂、等离子喷涂、超音速火焰喷涂等。火焰喷涂具有设备简单、使用方便、操作成本低的特点，但它的涂层结合强度低，气孔率及氧化物含量高。 |
