Design of experimental bench and internal pressure measurement of scroll compressor with refrigerant injection
Design of experimental bench and internal pressure measurement of scroll compressor with refrigerant injection
复制标题
DOI：
10.1016/j.ijrefrig.2006.04.007
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Baolong Wang;Xianting Li;W. Shi;Q. Yan
中科院分区：
文献类型：
--
作者：
Baolong Wang;Xianting Li;W. Shi;Q. Yan
通过对涡旋压缩机内压缩过程的实验研究，可以揭示制冷剂喷射的本质。实验的难点在于测量口位置的设计、动态压力测量系统的设计和喷射系统的设计。针对涡旋压缩机制冷剂喷射过程中内压缩过程的动态压力测量问题，提出了一种涡旋压缩机制冷剂喷射研究的集成化实验台设计方法。分别阐述了喷射口和测量口的位置设计、压力信号的频谱分析、传感器类型和结构的选择以及压力引导系统的设计。最后搭建了试验台架。在此基础上进行了初步的实验研究。结果表明：该设计方法解决了制冷剂喷射涡旋压缩机实验研究中的大部分问题，工作可靠; 2制冷剂喷射影响了大部分内压缩过程，不应视为瞬态过程; 3气体喷射可大大提高系统性能，且对某一涡旋压缩机存在一个最佳喷射压力。
Experiments on the inner compression process of scroll compressor with refrigerant injection can reveal the essence of refrigerant injection. The difficulty of the experiment is the design of location of measuring ports, measuring system of dynamic pressure and design of the injection system. Focusing on the dynamic pressure measurement of inner compression process during refrigerant injection, an integrated bench design method for refrigerant injection research in scroll compressor is presented in this paper. The location design of injection ports and measuring ports, frequency spectrum analysis of pressure signal, selection of the sensor type and configuration, and design of the pressure-leading system are expressed, respectively. Finally, a test bench is set up. Based on it, several elementary experiments were carried out. The results show that: this design method solves most problems in the experimental research of scroll compressor with refrigerant injection and works reliably; the refrigerant injection effects the majority of the inner compression process and should not be considered as a transient process; gas injection can increase the system performance greatly and there is an optimal injection pressure for a certain scroll compressor.