The utility model discloses a hot air drying and cleaning device for improving the vacuum of the condenser, which comprises a steam turbine quick cooling device, a condenser, a hot air blower, a water chamber vacuum pump and an induced draft fan. The outlet of the steam turbine quick cooling device is connected with the front water chamber of the condenser through a pipeline, the hot air blower is connected with the front water chamber of the condenser through a pipeline, and the top of the rear water chamber of the condenser is connected with the vacuum of the water chamber through a pipeline Pump connection: the top of the rear water chamber of the condenser is connected with the induced draft fan through the pipeline, the front water chamber of the condenser is connected with the circulating water inlet pipe, and the rear water chamber of the condenser is connected with the circulating water return pipe; the outlet of the quick cooling device of the turbine and the pipeline of the front water chamber of the condenser are installed with the pressure regulating structure for regulating the compressed air, which is pneumatic valve, gas pressure reducing valve and isolation valve, The pneumatic valve, gas pressure reducing valve and isolation valve are successively installed on the pipeline. The beneficial effect of the utility model is that the unit does not need to be shut down for cleaning, the operation is simple, the investment is small, the effect is fast, and the vacuum of the condenser is improved.
【技术实现步骤摘要】
一种热风干燥清洗提高凝汽器真空装置
本技术涉及系统节能改造
,具体是一种热风干燥清洗提高凝汽器真空装置。
技术介绍
凝汽器设备是火力发电机组的重要辅机之一,凝汽器真空对机组经济性有着决定性的影响。正常运行时,凝汽器真空是靠汽轮机的排汽在凝汽器中被循环水带走热量,凝结成水,在此热交换过程中,体积骤然缩小近3万倍,因而形成高度真空;而蒸汽中不凝结的气体和真空系统不严密处漏进的空气,依靠抽气器或真空泵不断抽走以维持真空。由于凝汽器真空受凝汽器冷却面积、传热系数(传热性能、热负荷、清洁系数、空气泄漏量)、冷却水温升、冷却水进口温度等诸多因数影响。其中,有些因素是设备选型设计问题而难以改变的。但有些因数是可以通过运行调整、检修维护等手段来改善对真空不利影响,比如冷却管的清洁系数,可以通过在停机后采取化学清洗、高压水清洗等方法,而运行中可采用机器人在线清洗、胶球清洗等方法,上述清洗方法各有利弊,化学清洗污染大,费用高,需要停机加装临时系统方可清洗;高压水清洗冲洗后效果很好,但维持时间不长(1个月左右),且只能在停机后进行;机器人在线清洗费用高,且安全性不高、易造成冷却管泄漏;胶球清洗系统维护量大,运行费用高,且胶球易堵塞冷却水管。
技术实现思路
针对以上不足,本技术的目的就是提供一种热风干燥清洗提高凝汽器真空装置,该技术原理简单、无需机组停机清洗、运行操作简便、投资少、见效快,提高凝汽器真空,该技术在电力行业内有较好的推广应用价值。本技术的目的是通过这样的技术方案实现的,一种热风干燥清洗提高凝汽器真 ...
【技术保护点】
1.一种热风干燥清洗提高凝汽器真空装置,其特征在于,包括有汽轮机快冷装置、凝汽器、热风机、水室真空泵和引风机,所述汽轮机快冷装置的出口通过管路与所述凝汽器的前水室连通,所述热风机通过管路与所述凝汽器的前水室连通,所述凝汽器的后水室顶部通过管路与所述水室真空泵连接,所述凝汽器的后水室顶部通过管路与所述引风机连接,所述凝汽器的前水室连接有循环水进水管,所述凝汽器的后水室连接有循环水回水管;/n所述汽轮机快冷装置的出口与所述凝汽器的前水室的管路上安装有用于调节压缩空气的调压结构,所述调压结构为气动门、气体减压阀和隔离阀,所述气动门、气体减压阀和隔离阀依次安装在该管路上。/n
【技术特征摘要】
1.一种热风干燥清洗提高凝汽器真空装置,其特征在于,包括有汽轮机快冷装置、凝汽器、热风机、水室真空泵和引风机,所述汽轮机快冷装置的出口通过管路与所述凝汽器的前水室连通,所述热风机通过管路与所述凝汽器的前水室连通,所述凝汽器的后水室顶部通过管路与所述水室真空泵连接,所述凝汽器的后水室顶部通过管路与所述引风机连接,所述凝汽器的前水室连接有循环水进水管,所述凝汽器的后水室连接有循环水回水管;
所述汽轮机快冷装置的出口与所述凝汽器的前水室的管路上安装有用于调节压缩空气的调压结构,所述调压结构为气动门、气体减压阀和隔离...
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