摘要
吸气消音器对活塞式冰箱压缩机效率和噪声均有重大影响,依赖经验设计准确度较低,而包含阀片的流固耦合的压缩仿真计算时间长,难以满足多参数联合优化的要求,这使得吸气消音器设计成为行业内的痛点和难点问题。结合工程实际,开发了一种效率较高的可计算压缩过程的流动CFD仿真方法,同时结合声腔传递损失仿真,可实现消音器流场-声场联合快速优化。基于该方法,研究了一种单插管消音器主要设计尺寸对于流动性能和传递损失的影响规律,据此对某插管消音器进行了结构优化,实现了高频冷量增幅8%,相关技术已经在笔者所在单位某款新品中得到应用。
The suction muffler has a significant impact on the efficiency and noise of the piston refrigerator compressor, and the accuracy of the design based on experience is low, and the calculation time of the compression simulation including the fluid-structure coupling of the valve plate is long, and it is difficult to meet the requirements of multi-parameter joint optimization, which makes The design of suction muffler has become a pain point and difficult problem in the industry. Combining with engineering practice, this paper develops a CFD simulation method for the aerodynamic performance of the whole machine with high computational efficiency. At the same time, combined with the simulation of the transmission loss of the acoustic cavity, the joint rapid optimization of the muffler flow field and the sound field can be realized. Based on this method, the influence law of the main design size of a single intubation muffler on performance and transmission loss is studied, and the structure is optimized accordingly, and the high-frequency cooling capacity is increased by 8%. applied in new products.
作者
曹红军
黄健
Cao Hongjun;Huang Jian(Guangdong Meizhi Compressor Co.,Ltd.)
出处
《制冷与空调》
2022年第12期21-26,63,共7页
Refrigeration and Air-Conditioning
关键词
冰箱压缩机
吸气消音器
CFD仿真
传递损失仿真
refrigerator compressor
intake muffler
CFD simulation
transmission loss simulation
