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Evaluation of reed valves using an impact evaluation device that simulates operating condition.

Number: 1553

Author(s) : NOZAKI T., IIJIMA R., NAGATA S., YAMAMURA K., FUJIHARA H.

Summary

In fluid machinery, especially compressors, suction and discharge valves are key components that greatly affect performance, noise, and reliability. The use of reed valves, manufactured through sheet material punching, is prevalent in these applications. While reed valves are often chosen over other types like poppet valves for their cost advantages, they demand high fatigue strength and impact resistance, necessitating a high level of quality and reliability.
One of the challenges in using reed valves is evaluating their durability in real-world conditions due to their robust fatigue strength and impact resistance. This report introduces a novel approach to impact resistance testing that closely simulates the operational conditions of compressors. The study focuses on constructing and implementing a methodology for this form of testing, ensuring a more realistic evaluation of the valves in conditions similar to actual use.
A specific aspect of compressor reed valves is that the fluid forces acting on them primarily consist of gaseous refrigerants in refrigerant compressors. When the load is gaseous, its low density presents challenges in conducting tests under sufficiently high loads. To address this, the report details the development of an impact resistance tester using refrigeration oil as the working fluid. By controlling the load on the reed valve through variations in the flow rate of the refrigeration oil, and intermittently flowing a denser fluid through the valve, the report successfully replicates the valve's operational behavior for impact resistance testing. The tests revealed that different materials exhibit varying impact resistance performances. This finding is crucial for selecting suitable materials for compressor reed valves and provides valuable data for material selection.

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Pages: 12

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Details

  • Original title: Evaluation of reed valves using an impact evaluation device that simulates operating condition.
  • Record ID : 30033633
  • Languages: English
  • Subject: Technology
  • Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Publication date: 2024/07/18

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