热氨除霜系统及其管路控制阀件的运行调节方法(2)  

Hot ammonia gas defrost systems and their operational methods of control valves on the pipelines(2)

作　　者：战文 张华[2] 

机构地区：[1]上海派克汉尼汾公司,上海201206 [2]上海理工大学,上海200093

出　　处：《制冷技术》2005年第2期34-37,共4页Chinese Journal of Refrigeration Technology

摘　　要：本文论述了热氨除霜的基本原理和控制内容,详细介绍了直接膨胀式,液体再循环式除霜管路系统和控制方法,分析不同除霜系统的特点,指出了选择合适的自动除霜控制阀件重要性。对氨制冷装置的设计、安装、节能运行、安全控制和管理有指导作用。This paper depicts the basic principles and control functions in ammonia hot gas defrost system. The pipelines and control valves in direct expansion systems and liquid recirculating systems are mainly introduced and compared with each other. Some key points given are helpful to select the correct automatic control valves. This paper plays a guidable important role in design, installation, operation, safety control and management of ammonia refrigeration system.

关 键 词：除霜系统 调节方法 阀件 直接膨胀式 氨制冷装置 控制内容 基本原理 详细介绍 控制方法 管路系统 再循环式 除霜控制 节能运行 指导作用 安全控制 

分 类 号：TB657[一般工业技术—制冷工程] U463.835[机械工程—车辆工程]