汽车空调热力膨胀阀容量测试系统的研制
热力膨胀阀在不同工况下的流量特性是影响制冷系统性能的重要因素，因此需要对热力膨胀阀进行制冷剂实流检测。本文研制了制冷量范围为1．7～10kW的热力膨胀阀容量测试台。该测试台以“膨胀阀进出口的压力值”为测试条件．避免了阀前高压部分设备流动阻力的差异对测量结果的影响。系统的流量测量不确定度为0．5％，控温精度为±0．5℃。在标准工况下取额定容量5．5kW的H型热力膨胀阀的性能进行了测试，根据温度．开度、开度一流量、温度．流量关系特性分析得到在热力膨胀阀工作区域内，其温度与流量基本成线性比例关系。根据热力膨胀阀增益和滞环的定量分析，判别热力膨胀阀的性能优劣。...
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| Published in | 制冷学报 Vol. 36; no. 5; pp. 107 - 112 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国计量学院计量测试工程学院 杭州 310018%中石油塔里木油田分公司质量检测中心 库尔勒 841000
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 0253-4339 |
| DOI | 10.3969/j.issn.0253-4339.2015.05.0107 |
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| Abstract | 热力膨胀阀在不同工况下的流量特性是影响制冷系统性能的重要因素，因此需要对热力膨胀阀进行制冷剂实流检测。本文研制了制冷量范围为1．7～10kW的热力膨胀阀容量测试台。该测试台以“膨胀阀进出口的压力值”为测试条件．避免了阀前高压部分设备流动阻力的差异对测量结果的影响。系统的流量测量不确定度为0．5％，控温精度为±0．5℃。在标准工况下取额定容量5．5kW的H型热力膨胀阀的性能进行了测试，根据温度．开度、开度一流量、温度．流量关系特性分析得到在热力膨胀阀工作区域内，其温度与流量基本成线性比例关系。根据热力膨胀阀增益和滞环的定量分析，判别热力膨胀阀的性能优劣。 |
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| AbstractList | TU831%U463.85+1; 热力膨胀阀在不同工况下的流量特性是影响制冷系统性能的重要因素，因此需要对热力膨胀阀进行制冷剂实流检测。本文研制了制冷量范围为1.7~10 kW的热力膨胀阀容量测试台。该测试台以“膨胀阀进出口的压力值”为测试条件，避免了阀前高压部分设备流动阻力的差异对测量结果的影响。系统的流量测量不确定度为0.5％，控温精度为±0.5℃。在标准工况下取额定容量5.5 kW的H型热力膨胀阀的性能进行了测试，根据温度-开度、开度-流量、温度-流量关系特性分析得到在热力膨胀阀工作区域内，其温度与流量基本成线性比例关系。根据热力膨胀阀增益和滞环的定量分析，判别热力膨胀阀的性能优劣。 热力膨胀阀在不同工况下的流量特性是影响制冷系统性能的重要因素，因此需要对热力膨胀阀进行制冷剂实流检测。本文研制了制冷量范围为1．7～10kW的热力膨胀阀容量测试台。该测试台以“膨胀阀进出口的压力值”为测试条件．避免了阀前高压部分设备流动阻力的差异对测量结果的影响。系统的流量测量不确定度为0．5％，控温精度为±0．5℃。在标准工况下取额定容量5．5kW的H型热力膨胀阀的性能进行了测试，根据温度．开度、开度一流量、温度．流量关系特性分析得到在热力膨胀阀工作区域内，其温度与流量基本成线性比例关系。根据热力膨胀阀增益和滞环的定量分析，判别热力膨胀阀的性能优劣。 |
| Abstract_FL | Thermal expansion valve’s flow characteristic under different conditions is one of the most important factors affecting refrigera-tion system performance. So it is necessary to detect the actual refrigerant flow of thermal expansion valve. A thermal expansion valve test-bench was developed and its range of refrigerating capacity was 1. 7-10 kW. In the system, in order to avoid the influence of flow resist-ance difference of the high pressure part on the measured results, inlet pressure of expansion was treated as the testing condition. The un-certainty of flow measurement is 0. 5% and temperature control accuracy is ± 0. 5℃. Performance of a 7 kW capacity H-type thermal ex-pansion valve was tested in the standard condition, and the property of flow-opening, temperature-opening, flow-temperature was acquired and analyzed. In the thermal expansion valve’s work range, the flow increases linearly with the increase of temperature. Through the quan-titative analysis of thermal expansion valve’s gain and hysteresis, the performance of thermal expansion valve is judged. |
| Author | 颜吉亮 王玉刚 耿丽萍 王清平 |
| AuthorAffiliation | 中国计量学院计量测试工程学院,杭州310018 中石油塔里木油田分公司质量检测中心,库尔勒841000 |
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| Author_FL | Wang Qingping Wang Yugang Geng Liping Yan Jiliang |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | Development of Testing System on Thermal Expansion Valve Capacity |
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| Keywords | thermal expansion valve 流量 automobile air-conditioning 汽车空调 热力膨胀阀 开度 opening flow |
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| Notes | 11-2182/TB automobile air-conditioning; thermal expansion valve ; opening; flow Yan Jiliang Wang Yugang Geng LipingI Wang Qingping （1. College of Metrology and Measurement Engineering, China University of Metrology, Hangzhou, 310018, China; 2. Testing Center for Quality, Petro China Tarim Oilfield Company, Korla, 841000, China） Thermal expansion valve＇s flow characteristic under different conditions is one of the most important factors affecting refrigeration system performance. So it is necessary to detect the actual refrigerant flow of thermal expansion valve. A thermal expansion valve testbench was developed and its range of refrigerating capacity was 1.7 - 10 kW. In the system, in order to avoid the influence of flow resist- ance difference of the high pressure part on the measured results, inlet pressure of expansion was treated as the testing condition. The un- certainty of flow measurement is 0.5% and temperature control accuracy is ~0.5 ~C. Performance of a 7 kW capacity H-type thermal expansion valve wa |
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| PublicationTitle | 制冷学报 |
| PublicationTitleAlternate | Journal of Refrigeration |
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| PublicationYear | 2015 |
| Publisher | 中国计量学院计量测试工程学院 杭州 310018%中石油塔里木油田分公司质量检测中心 库尔勒 841000 |
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| SubjectTerms | 开度 汽车空调 流量 热力膨胀阀 |
| Title | 汽车空调热力膨胀阀容量测试系统的研制 |
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