H型翅片管型省煤器結構形式及性能特點

H型翅片管型省煤器技術是采用H型翅片管（亦稱H型鰭片管、肋片管翅片管）組裝成的高效換熱省煤器。H型翅片管型省煤器結構形式及性能特點.H型翅片管型省煤器結構形式：基本形式為“H”型及雙“H”型，順列佈置。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點Performance characteristics of H finned tube economizer1）省煤器用H型翅片管式省煤器代替光管省煤器，可以增加換熱面積，減少管子排列數目，從而增大煙氣流通截面，使煙速降低，減少磨損。由於管子的磨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損速度與煙氣的流速的3.33次方成正比，所以如果煙氣速度從9m/s降低至7m/s，則磨損速度就會降低至原來的43%。同時實驗表明，翅片管本身有使飛灰向管排中間集中的作用，故采用翅片管省煤器在結構上有減輕磨損的作用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型翅片管可制造成雙管的“雙H”型翅片管，其結構的剛性好，可以應用於管排較長的場合。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順列佈置，H型翅片把空間分成若幹小的區域，對氣流有均流作用，使磨損大大降低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型翅片由於兩邊形成筆直通道，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）空間緊湊，總體重量大為減輕，降低造價5) the space is compact, the overall weight is greatly reduced, and the cost is reduced.6）節能、耗電少：用於發電機組的省煤器，至少可減少三分之二發電機排煙熱損失，每噸蒸汽僅耗電2～4kW6) 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）操作維護簡單；節省勞動力：省煤器整體組裝出廠，運動部件少，結構簡單，便於安裝。印花地坪自動化水平高，運行維護簡單，可減少運行人員。7) Simple operation and maintenance; Labor saving: The economizer is assembled and manufactured as a whole, with fewer moving parts, simple str环氧地坪ucture and easy installation. The automation level is high, the operation and maintenance are simple, and the operators can be reduced.辛苦整理.轉載請註明http://www.wxsxsjx.com