Study on Temperature Characteristic of Electronic Expansion Valve on Low-temperature Devices

doi:10.3969/j.issn.0253-4339.2007.02.007

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Study on Temperature Characteristic of Electronic Expansion Valve on Low-temperature Devices

更新时间：2025-09-03

- Study on Temperature Characteristic of Electronic Expansion Valve on Low-temperature Devices
- Journal of Refrigeration Vol. 28, Issue 2, Pages: 32-35(2007)
- 作者机构：
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- DOI：10.3969/j.issn.0253-4339.2007.02.007
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- Published：2007
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Study on Temperature Characteristic of Electronic Expansion Valve on Low-temperature Devices[J]. Journal of Refrigeration, 2007, 28(2): 32-35.
DOI：

Study on Temperature Characteristic of Electronic Expansion Valve on Low-temperature Devices[J]. Journal of Refrigeration, 2007, 28(2): 32-35. DOI： 10.3969/j.issn.0253-4339.2007.02.007.

摘要

为了研究电子膨胀阀在低温条件下的应用特性，研制了低温试验台，并在试验台上并联安装了电子膨胀阀和热力膨胀阀，对两种膨胀阀在相近工况下进行降温特性的对比性试验。根据实验结果进行分析研究，可以看出电子膨胀阀在低温条件下的控温曲线是非常平稳的，并可调节电子膨胀阀的不同开度，达到不同的降温速率及终温。另外通过改变电子膨胀阀开度，研究了在变开度情况下，对制冷系统循环参数的影响。

Abstract

A low - temperature test system was set up to investigate temperature characteristic of electronic expansion valves on low - temperature devices. In the system

a thermostatic expansion valve and an electronic expansion valve were installed in parallel. The experimental results show that the temperature control curves are smooth and steady with the electronic expansion valve at the low - temperature conditions. In addition

different temperature drop rates and final balanced temperatures can be achieved by changing the open degree of the electronic expansion valve.

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Related Author

Jin Lulu

Sheng Jian

Zhang Hua

Liu Yantao

Zhu Tianjie

Zhan Feilong

Zhou Shaohua

Ding Guoliang

Related Institution

Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology

GD Midea Refrigeration Equipment Co., Ltd.

School of Mechanical Engineering, Shanghai Jiao Tong University

Institute of Refrigeration and Cryogenics, University of Shanghai for Science and Technology

上海理工大学能源与动力工程学院

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