摘要
针对目前热力膨胀阀容量测试设备自动化程度低、测试精度低等缺点,依据国标QC/T663—2000的测试方法,设计了一套热力膨胀阀容量测试系统。在硬件设计上,该系统由开度测试装置、制冷剂流量测试装置和控制模块组成。在软件设计上,利用Visual Basic 6.0开发了一套可视化的测试软件。容量测试结果表明,该系统能较好地实现热力膨胀阀的容量测试,其测试精度达到了1.0%。
In order to deal with the shortcomings of the capacity detection device for thermal expan-sion valve, such as low automatic level and poor test accuracy, a capacity test system for thermal expan-sion valve is designed according to the test method which is provided by the national standard QC/T 663-2000. On the hardware design, the system consists of opening test device, refrigerant flow test device and control module. On the software design, this paper use Visual Basic 6. 0 developed a set of visual test software. The experimental results of capacity test showed that the system could well realize the ca-pacity test of the thermal expansion valve, and its test accuracy had reached 1. 0%.
出处
《工业仪表与自动化装置》
2014年第4期43-46,77,共5页
Industrial Instrumentation & Automation
关键词
热力膨胀阀
开度
流量
容量测试
thermal expansion valve
opening
flow
capacity test
