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主题：H型翅片管型省煤器结构形式及性能特点 [收藏主题] |
 H-type finned-tube economizer is a high-efficiency heat exchange economizer assembled by H-type finned tube (also known as H-type finned tube, finned tube). H-type finned-tube economizer structure form and performance characteristics. H-type finned-tube economizer structure form: basic form is "H" type and double "H" type, arranged in sequence. H型翅片管型省煤器性能特点 Performance characteristics of H finned tube economizer 1）省煤器用H型翅片管式省煤器代替光管省煤器，可以增加换热面积，减少管子排列数目，从而增大烟气流通截面，使烟速降低，减少磨损。由于管子的磨 1) Replacing bare tube economizer with H-type finned tube economizer can increase heat exchange area and reduce the number of tubes arranged, thus increasing the flue gas flow cross section, reducing the flue gas velocity and reducing wear. Because of the grinding of pipes 损速度与烟气的流速的3.33次方成正比，所以如果烟气速度从9m/s降低至7m/s，则磨损速度就会降低至原来的43%。同时实验表明，翅片管本身有使飞灰向管排中间集中的作用，故采用翅片管省煤器在结构上有减轻磨损的作用 The wear rate is proportional to the 3.33 power of the flue gas velocity, so if the flue gas velocity is reduced from 9 m/s to 7 m/s, the wear rate will be reduced to 43%. At the same time, the experiment shows that the finned tube itself has the function of centralizing fly ash into the middle of the tube row, so the finned tube economizer has the function of reducing wear and tear in structure. 2）H型翅片管可制造成双管的“双H”型翅片管，其结构的刚性好，可以应用于管排较长的场合。 2) H-type finned tube can be made into double-tube "double-H" type finned tube. Its structure is rigid and can be used in the case of long tube row. 3）H型翅片管省煤器采用顺列布置，H型翅片把空间分成若干小的区域，对气流有均流作用，使磨损大大降低 3) H-type finned tube economizer is arranged in sequence. H-type fins divide the space into several small areas, which can equalize the flow of airflow and greatly reduce wear and tear. 4）H型翅片由于两边形成笔直通道，可取得最好的吹灰效果。 4) H type fins have the best soot blowing effect due to the formation of straight passages on both sides. 5）空间紧凑，总体重量大为减轻，降低造价 5) the space is compact, the overall weight is greatly reduced, and the cost is reduced. 6）节能、耗电少：用于发电机组的省煤器，至少可减少三分之二发电机排烟热损失，每吨蒸汽仅耗电2～4kW 6) Energy saving and less power consumption: The economizer for generating units can reduce at least two-thirds of the heat loss of exhaust gas from generators, and consume only 2-4 kW of power per ton of steam. 7）操作维护简单；节省劳动力：省煤器整体组装出厂，运动部件少，结构简单，便于安装。自动化水平高，运行维护简单，可减少运行人员。 7) Simple operation and maintenance; Labor saving: The economizer is assembled and manufactured as a whole, with fewer moving parts, simple structure and easy installation. The automation level is high, the operation and maintenance are simple, and the operators can be reduced. 辛苦整理.转载请注明http://www.wxsxsjx.com |
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