环保采暖锅炉浅谈关于锅炉的几个基本概念
    2014-2-21 10:35:54  文章来源:http://www.jnlzsb.com
    蒸汽参数。包括锅炉的蒸汽压力和温度,通常是指过热器、再热器出口处的过热蒸汽压力和温度如没有过热器和再热器,即指锅炉出口处的饱和蒸汽压力和温度。给水温度是指省煤器的进水温度,无省煤器时即指锅筒进水温度。环保采暖锅炉http://www.jnlzsb.com/
    The steam parameters. Including the boiler steam pressure and temperature, usually refers to the superheated steam superheater and reheater outlet pressure and temperature such as no superheater and reheater, namely the boiler that saturated vapor pressure and temperature at the exit. Feed temperature refers to the inlet water temperature of economizer, the absence of economizer namely drum water temperature.
    水汽系统。在水汽系统方面,给水在加热器中加热到一定温度后,经给水管道进入省煤器,进一步加热以后送入锅筒,与锅水混合后沿下降管下行至水冷壁进口集箱。水在水冷壁管内吸收炉膛辐射热形成汽水混合物经上升管到达锅筒中,由汽水分离装置使水、汽分离。分离出来的饱和蒸汽由锅筒上部流往过热器,继续吸热成为一定温度的过热蒸汽(目前大多300MW、600MW机组蒸汽温度约为540℃左右),然后送往汽轮机。
    Water system. In water system, water supply in the heater is heated to a certain temperature, the feed water pipe into the economizer, after further heat into drum, mixes with pan of water along the drop next to the water wall tube inlet header. Water absorption in the water wall tube furnace radiant heat mixture formation of soda by the rise of tube to drum, by the separation device for separating water and steam. Separated by saturated steam drum upper stream to superheater continue endothermic become a certain temperature of superheated steam (at present, most of the 300 mw, 600 mw steam temperature is about 540 ℃ or so), and then sent to the steam turbine.
    锅炉烟气。锅炉烟气中所含粉尘(包括飞灰和炭黑)、硫和氮的氧化物都是污染大气的物质,未经净化时其排放指标可达到环境保护规定指标的几倍到数十倍。控制这些物质排放的措施有燃烧前处理、改进燃烧技术、除尘、脱硫和脱硝等。借助高烟囱只能降低烟囱附近地区大气中污染物的浓度。烟气除尘所使用的作用力有重力、离心力、惯性力附着力以及声波、静电等。对粗颗粒一般采用重力沉降和惯性力的分离,在较高容量下常采用离心力分离除尘静电除尘器和布袋过滤器具有较高的除尘效率。湿式和文氏—水膜除尘器中水滴水膜能粘附飞灰,除尘效率很高还能吸收气态污染物。环保采暖锅炉http://www.jnlzsb.com/
    Boiler flue gas. Contained in boiler flue gas dust (including fly ash and carbon black), sulfur and nitrogen oxides are atmospheric pollution substance, without their emissions when cleaning index can meet requirements in the environmental protection index of several times to dozens times. The measures to regulate these material pretreatment, improved combustion technology, dust removal, desulfurization and denitration, etc. With high region near the chimney can only reduce the concentration of the pollutants in the atmosphere. Flue gas dust removal by using adhesion force of gravity, centrifugal force, inertia force and sound waves, static electricity, etc. Commonly used for coarse particle gravity sedimentation and separation of inertia force, under the high capacity centrifugal separation is often used to remove dust electrostatic precipitators and bag filters have high dust removal efficiency. Water dripping wet and surname - water film filter membrane can adhesion of fly ash, dust removal efficiency is very high also can absorb gaseous pollutants.
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