The invention discloses a pipe type cooling device for gas boiler furnace, including a furnace and pipe type cooler, which is characterized in that the structure of water cooling device comprises a spiral coil middle and upper and lower two straight, each accounted for 1/3 of length, vertically arranged on the furnace tube, both ends of the tube through the vertical furnace the bladder wall and welding, and the water pipe communicated cavity space cooling device; structure of tube type cooling device can also be used in the middle of concentric rings and two straight tube with a concentric circle was 3~5 root, the diameter is less than the straight, all concentric tube connected to the upper and lower ends of the two section straight; in the central axis of the furnace is provided with 2~5 pipe type cooler. When running, water cooling is always full of water, and quickly absorbed heat of the flame in the furnace, by the natural convection of hot water rising and cold water enters from the lower end. The water tube type thermostat has the function of disturbing and scattering the flame, and can reduce the peak temperature of flame at the same time, thus reducing the thermal type NO
【技术实现步骤摘要】
燃气锅炉炉胆内水管式降温装置
本专利技术涉及一种燃气锅炉,特别是涉及一种燃气锅炉炉胆内水管式降温装置。
技术介绍
氮氧化物即NOX是形成光化学烟雾、破坏臭氧层的一种常见大气污染物,近年来随着环境污染加剧,国家不断加大环保要求。NOX的类型主要分为三种:燃料型、热力型、快速型。对于现有的燃气炉,燃料型NOX控制问题得到了解决,快速型NOX与热力型NOX相比,量小可忽略不计,因此,降低燃气锅炉中NOX的排放主要是控制热力型NOX。基本原理是降低火焰峰值区燃烧温度,采用的方法有向炉胆内喷入水滴或蒸汽、炉胆内部焊接有水流通的直管、扩大炉胆面积和向炉胆内分级送风等。水滴或蒸汽喷入炉胆实现方法难度较大,直管受热面积有限且热膨胀性差,炉胆面积受锅炉规格及成本限制不能无限增大,分级送风需要一整套完整的装置。
技术实现思路
为了克服上述现有技术的不足,本专利技术公开了燃气锅炉炉胆内水管式降温装置。燃气锅炉炉胆内水管式降温装置,包括炉胆和水管式降温器,其特征在于:水管式降温器的结构包括中部的螺旋盘管及上下两段直管,各占1/3长度,竖直安装于炉胆内,其两端直管垂直穿过炉胆壁伸出炉胆壁2~5mm,并与炉胆壁焊接,水管式降温器的内腔与炉水空间相通,在炉胆轴线中部沿轴线方向设置2~5个水管式降温器。水管式降温器的结构也可采用中部的同心圆环管和上下两段直管的结合,同心圆管取3~5根,其管径小于直管,所有同心圆管的上下两端连接于两段直管。各种水管式降温器的材料都要选择耐热钢。与现有技术相比,本专利技术的有益效果是:一是水管式降温器内始终充满炉水,靠自然对流热水上升而冷水从下端进入,能有效避免 ...
【技术保护点】
本专利技术公开了燃气锅炉炉胆内水管式降温装置,包括炉胆和水管式降温器,其特征在于:水管式降温器的结构包括中部的螺旋盘管及上下两段直管,各占1/3长度,竖直安装于炉胆内,其两端直管垂直穿过炉胆壁伸出炉胆壁2~5mm,并与炉胆壁焊接,水管式降温器的内腔与炉水空间相通,在炉胆轴线中部沿轴线方向设置2~5个水管式降温器。
【技术特征摘要】
1.本发明公开了燃气锅炉炉胆内水管式降温装置,包括炉胆和水管式降温器,其特征在于:水管式降温器的结构包括中部的螺旋盘管及上下两段直管,各占1/3长度,竖直安装于炉胆内,其两端直管垂直穿过炉胆壁伸出炉胆壁2~5mm,并与炉胆壁焊接,水管式降温器的内腔与炉水空间...
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