[1]黎立新,季建刚,乐维健,等.环保型CO2跨临界制冷系统[J].东南大学学报(自然科学版),2001,31(4):101-105.[doi:10.3969/j.issn.1001-0505.2001.04.024]
 Li Lixin,Ji Jiangang,Le Weijian,et al.Environmental Friendly Trans-Critical CO2 Refrigerant System[J].Journal of Southeast University (Natural Science Edition),2001,31(4):101-105.[doi:10.3969/j.issn.1001-0505.2001.04.024]
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环保型CO2跨临界制冷系统()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第4期
页码:
101-105
栏目:
能源与动力工程
出版日期:
2001-07-20

文章信息/Info

Title:
Environmental Friendly Trans-Critical CO2 Refrigerant System
作者:
黎立新 季建刚 乐维健 王仁德
中国船舶重工集团公司第7研究院第704研究所, 上海 200031
Author(s):
Li Lixin Ji Jiangang Le Weijian Wang Rende
Shanghai Marine Equipment Research Institute, Shanghai 200031, China)
关键词:
制冷系统 二氧化碳 压缩机 热交换器 跨临界
Keywords:
refrigerant system carbon dioxide compressor heat exchanger trans-critical
分类号:
TB66
DOI:
10.3969/j.issn.1001-0505.2001.04.024
摘要:
自然工质CO2是一种不对臭氧层产生破坏、具有很小的温室效应系数的制冷剂.本文介绍了跨临界CO2制冷系统的构成和控制特点,分析了影响其性能的主要因素,设计了CO2制冷压缩机、换热器、节流机构的关键技术.影响CO2制冷压缩机性能的主要因素是泄漏,影响压缩机以及所有循环系统配件安全性的主要因素是其结构强度.CO2制冷系统换热器设计的趋势是采用高流量密度的小管径和微通道换热器,这有利于提高换热系数和承受高压.节流阀把高压侧压力节流到蒸发压力,同时控制高压侧压力并使其随气体冷却器出口温度的变化而变化,CO2制冷系统调节特性与传统制冷系统不同.
Abstract:
The ecological refrigerant CO2 is a working fluid that does not contribute to ozone depletion or global warming greenhouse.The trans-critical CO2 refrigerant system and the characteristics of control methods are introduced.The key technique for designing the main components,such as compressor,gas cooler,and throttling mechanism is analysed. The leakage of the cylinder is the major factor affecting the indicated process of CO2-compressors. The structure strength of compressor and all the components are important to the security of the whole system. The heat exchangers are designed for high refrigerant mass flux and are made with small-diameter tubes or extruded flat microchannel tubes,which can increase the heat transfer coefficient and endure higher pressure. By throttles,the high pressure is dropped down to evaporator pressure,and changed with the refrigerant temperature at the gas cooler, the regulation characteristics of the system are different from traditional system.

参考文献/References:

[1] Jurgen S B,Horat Kruse.Efficiency of indicated process of CO2-compressor.Int Journal of Refrigeration,1998,21(3):194~201
[2] Gustave Lorentzen.Reival of carbon dioxide as a refrigerant.Int Journal of Refrigeration,1994,17(5):290~310
[3] Dorin C A.意大利Dorin公司的半封闭二氧化碳制冷压缩机.制冷与空调技术,1999(1):18
[4] 董丽萍.三洋宣告其二氧化碳压缩机诞生.中国制冷空调,1999(10):12
[5] Pettersen J,Hafner A,Skaugen G.Development of compact heat exchangers for CO2 air-conditioning system.Int Journal of Refrigeration,1998,21(3):180~193

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备注/Memo

备注/Memo:
作者简介:黎立新,女,1963年生,高级工程师.
基金项目:中国船舶重工集团公司第7研究院青年科技发展基金资助项目(00QJ05).
更新日期/Last Update: 2001-07-20