The invention discloses a temperature regulating device for boiler tail gas, which is installed at the exhaust pipe of the boiler, including a temperature regulating tank body. The temperature regulating tank body is provided with an exhaust gas inlet and an exhaust gas outlet, and the exhaust gas inlet is connected with the exhaust gas pipe. The temperature regulating tank body is perforated with several cooling pipes, and the temperature regulating tank body is provided with a cooling inlet pipe and a cooling outlet pipe. The cooling intake pipe is connected with a cooling air supply fan, and the air intake pipe of the cooling air supply fan is provided with a natural air intake and a hot air supplement outlet, and the air outlet is provided with a hot air outlet and a hot air return outlet, and a hot air supplement pipe is connected between the hot air return outlet and the hot air supplement outlet; the tail gas is cooled by natural air heat transfer, so that the tail gas can be reduced to less than 400 degrees Celsius and heat exchanged. The back gas is partially refluxed to increase the initial temperature of the cooling air and prevent the natural wind from lowering the tail temperature too low, so that the tail temperature can be adjusted effectively and the corrosion of HCl can be reduced.
【技术实现步骤摘要】
锅炉尾气温度调节装置
本专利技术涉及垃圾处理设备
,尤其涉及一种锅炉尾气温度调节装置。
技术介绍
垃圾处理问题是目前环境治理所必须面对的重要问题之一,城市生活垃圾属于主要来源,包括废旧塑料、纤维、餐余垃圾等。专利技术人致力于垃圾资源化利用的研究与应用,如利用垃圾生产RDF、垃圾燃烧热能利用等,在垃圾燃烧热能利用的过程中,专利技术人发现,因城市生活垃圾中含氯较高,在燃烧后易产生HCl等物质,HCl对各种金属物件都具有较强的腐蚀性。垃圾燃烧后HCl存在于尾气中,在经过管路、尾气处理设备等位置时,会与金属表面发生反应,生产氯化物或者氯酸盐等,使金属表面造成腐蚀。专利技术人在研究中发现,HCl的腐蚀作用受温度影响,在150℃~400℃之间时,HCl活性较低,腐蚀作用较低,锅炉内虽经水管等将热量换热利用,但排烟管处尾气温度多数还在400℃以上,HCl的腐蚀作用还非常明显。
技术实现思路
本专利技术所要解决的技术问题是提供一种结构简单,可对尾气温度进行调节,降低HCl腐蚀作用的锅炉尾气温度调节装置。为解决上述技术问题,本专利技术的技术方案是:锅炉尾气温度调节装置,安装在锅炉的排烟管处,包括温度调节罐体,所述温度调节罐体上设有尾气进口和尾气出口,所述尾气进口连接所述排烟管;所述温度调节罐体上贯穿设有若干冷却管,所述温度调节罐体上设有与若干所述冷却管的两端分别连通的冷却进气管和冷却出气管,所述冷却进气管连接有冷却供风机,所述冷却供风机的进风管上设有自然进风口和热风补风口,所述冷却出气管上设有热风出口和热风回流口,所述热风回流口与热风补风口之间连接有热风补风管。作为优选的 ...
【技术保护点】
1.锅炉尾气温度调节装置,安装在锅炉的排烟管处,其特征在于:包括温度调节罐体,所述温度调节罐体上设有尾气进口和尾气出口,所述尾气进口连接所述排烟管;所述温度调节罐体上贯穿设有若干冷却管,所述温度调节罐体上设有与若干所述冷却管的两端分别连通的冷却进气管和冷却出气管,所述冷却进气管连接有冷却供风机,所述冷却供风机的进风管上设有自然进风口和热风补风口,所述冷却出气管上设有热风出口和热风回流口,所述热风回流口与热风补风口之间连接有热风补风管。
【技术特征摘要】
1.锅炉尾气温度调节装置,安装在锅炉的排烟管处,其特征在于:包括温度调节罐体,所述温度调节罐体上设有尾气进口和尾气出口,所述尾气进口连接所述排烟管;所述温度调节罐体上贯穿设有若干冷却管,所述温度调节罐体上设有与若干所述冷却管的两端分别连通的冷却进气管和冷却出气管,所述冷却进气管连接有冷却供风机,所述冷却供风机的进风管上设有自然进风口和热风补风口,所述冷却出气管上设有热风出口和热风回流口,所述热风...
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