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四、密闭式蒸气凝结水回收节能技术的发展和提高1．密闭式蒸气凝结水回收系统简介密闭式蒸气凝结水回收技术是国外80年代开始商业化的一项先进节能技术。密闭式回收比开放式回收具有突出的优越性。图19为一个典型的回收系统。从中可以看出，由锅炉产生的蒸气，在间接加热设备内
Fourth, the development of closed-end steam condensate recovery and energy-saving technology and improve 1. Closed Vapor Condensation Water Recovery System Introduction Closed Vapor Condensation Water Recovery Technology is an advanced energy-saving technology that began commercialization in the 1980s. Closed recycling than open recycling has outstanding advantages. Figure 19 shows a typical recovery system. It can be seen from the steam generated by the boiler, indirect heating equipment