环保采暖锅炉讲解常见采暖炉水循环故障
    2014-7-1 11:55:46  文章来源:http://www.jnlzsb.com
    为了保证采暖炉的水循环稳定可靠,下降管中是不允许带有蒸汽的。否则,水要向下流,汽要向上浮,两者互相顶撞,既增加了流动阻力,又减少了循环水量,还可能将管子烧坏。因此,下降管口与锅筒最低水位间的高度不得小于下降管直径的4倍,最好将下降管接在上锅筒的底部;以免由于炉水进入下降管时产生的抽力,把蒸汽带进管内;或者由于炉水在下降管入口处因流速加快后压力降低,而自行汽化。
    Order to ensure the stable and reliable water circulation, cainuanlu drop tube with steam is not allowed. Otherwise, to dirty water, steam to rise, both against each other, both increased resistance to flow, and reduce the circulation of water, pipe is also likely to burn out. Therefore, falling between the nozzle and drum water level lowest height shall not be less than 4 times the diameter of the down tube, it is best to drop pipe joint at the bottom of the drum; In order to avoid the smoke generated in the boiler water into the drop tube, the steam into the tube; Or because the water accelerated due to the flow at the entrance of drop tube furnace pressure is reduced, and evaporation.
    当采暖炉的水冷壁管水平设置时,管中流动的汽水混合物因蒸汽比水轻,气泡要上浮集聚,使蒸汽和水在管子内分层流动。由于蒸汽的导热性能差,管子上部容易过热烧坏。因此,水冷壁管经过炉膛顶部(有的称为“天棚管”)的倾斜角,一般不应小于15°。
    When cainuanlu level of water wall tube set, soda mixture flows through the tube for lighter than water, steam bubbles floating agglomeration, make steam and water stratified flow in pipe. Because of the steam thermal conductive performance is poor, the upper tube overheating burn easily. Therefore, the water wall tube through the furnace top (some called the "ceiling") Angle, generally should not be less than 15 °.
    在同一个水循环回路的上升管群中,如果各水管之间受热情况相差太大,就会使受热弱的管内水流缓慢,循环动力不足,甚至由于受其他管子对循环水的争夺影响,管内的汽水停止流动,造成过热爆管事故。因此,对锅炉的结构和运行,应尽量使每排管子均衡吸热,保证水循环畅通。
    In the same rising water circulation loop nest of tubes, if heated situation between the pipe is too big, can make less heat pipe flow is slow, cycle the power shortage, even due to the effect of other of the scramble for circulating water pipe, tube soda stops flowing, tube-burst accident caused by overheating. To the structure and operation of the boiler, therefore, should try to make each row of balanced absorption of heat pipe, ensure smooth water cycle.
<友情连结> 新利18luck jxf吉祥坊 云顶斗地主