The utility model discloses a heat energy reuse equipment for high temperature waste gas of a coal-fired molten salt furnace, which comprises an exhaust gas outlet arranged at the end of the furnace of a coal-fired molten salt furnace, an exhaust gas outlet connected with the flue gas inlet of a steam generator, a steam drum at the top of a steam generator, and a flue gas outlet of a steam generator and an air preheater. The smoke inlet is connected, the smoke outlet of the air preheater is connected with the air inlet of the feed water preheater, and the exhaust outlet of the feed water preheater is connected with an induced draft fan; the high temperature exhaust gas in the furnace of the coal-fired molten salt furnace is sequentially discharged through the steam generator, the air preheater and the feed water preheater, and then discharged from the exhaust pipe of the outlet end of the induced draft fan. The outlet pipe of the feed water preheater is connected to the inlet pipe of the steam generator, and the drum of the steam generator generates low-pressure steam which is output from the steam outlet pipe. The utility model has the advantages that the heat energy of the waste gas generated by the coal-fired molten salt furnace is fully utilized, and the production cost of high temperature molten salt used in solid alkali production is reduced.
【技术实现步骤摘要】
燃煤熔盐炉高温废气的热能回用设备
本技术涉及一种热能回用设备
,具体涉及为固碱生产提供载热熔盐的燃煤熔盐炉的高温废气的热能回用设备。
技术介绍
固碱生产时需要使用高温载热熔盐对高温液体烧碱进行伴热,从而防止液体烧碱凝固。为固碱生产提供高温载热熔盐的熔盐制备炉,在工作过程中炉膛中会产生约为450℃的高温废气。目前对熔盐制备炉的高温废气的处理方式为:将450℃左右的高温废气对进炉的助燃冷空气进行预热,然后废弃排放。上述的对熔盐制备炉的高温废气的处理方式,没有充分利用高温废气的热能,明显造成能源浪费。
技术实现思路
本技术需要解决的技术问题是:提供一种燃煤熔盐炉高温废气的热能回用设备,其能充分利用高温废气。为解决上述问题,本技术采用的技术方案是:燃煤熔盐炉高温废气的热能回用设备,包括:设置在燃煤熔盐炉的炉膛上端部的废气出口,废气出口与蒸汽发生器的烟气进口相连通,蒸汽发生器顶部设置有汽包,汽包顶部的蒸汽出口上设置有蒸汽排出管,蒸汽发生器的烟气出口与空气预热器的进烟口相连通,空气预热器的排烟口与给水预热器的进气口相连通,给水预热器的排气口上连通设置有引风机,引风机的出风端设置 ...
【技术保护点】
1.燃煤熔盐炉高温废气的热能回用设备,包括:设置在燃煤熔盐炉的炉膛上端部的废气出口,其特征在于:废气出口与蒸汽发生器的烟气进口相连通,蒸汽发生器顶部设置有汽包,汽包顶部的蒸汽出口上设置有蒸汽排出管,蒸汽发生器的烟气出口与空气预热器的进烟口相连通,空气预热器的排烟口与给水预热器的进气口相连通,给水预热器的排气口上连通设置有引风机,引风机的出风端设置有排出管;燃煤熔盐炉的炉膛内的高温废气依次经蒸汽发生器、空气预热器、给水预热器,然后从引风机出风端的排出管排出;给水预热器由外部给水,给水预热器的出水管连通至蒸汽发生器的进水管,蒸汽发生器的汽包产生低压蒸汽由蒸汽排出管向外输出。
【技术特征摘要】
1.燃煤熔盐炉高温废气的热能回用设备,包括:设置在燃煤熔盐炉的炉膛上端部的废气出口,其特征在于:废气出口与蒸汽发生器的烟气进口相连通,蒸汽发生器顶部设置有汽包,汽包顶部的蒸汽出口上设置有蒸汽排出管,蒸汽发生器的烟气出口与空气预热器的进烟口相连通,空气预热器的排烟口与给水预热器的进气口相连通,给水预热器的排气口上连通设置有引风机,引风机的出风端设置有排出管;燃煤熔盐炉的炉膛内的高温废气依次经蒸汽发生器、空气预热器、给水预热器,然后从引风机出风端的排出管排出;给水预热器由外部给水,给水预热器的出水管连通至蒸汽发生器的进水管,蒸汽发生器的汽包产生低压蒸汽由蒸汽排出管向外输出。2.根据权利要求1所述的燃煤熔盐炉高温废气的热能回用设备,其特征在于:蒸汽发生...
【专利技术属性】
技术研发人员:刘惠平,李建国,黄晓宇,石健,王国星,郭希,宾云峰,刘喜锁,宁惠惠,
申请(专利权)人:苏州天沃环境能源工程有限公司,
类型:新型
国别省市:江苏,32
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