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首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference: High-Pressure Technology 2003: Shaping High Pressure Technology for the Future; 20030720-20030724; Cleveland,OH; US >POWER ACTUATED PRESSURE RELIEF VALVE FOR HIGH PRESSURE VESSELS
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POWER ACTUATED PRESSURE RELIEF VALVE FOR HIGH PRESSURE VESSELS

机译：高压容器动力驱动泄压阀

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摘要

The pressure required for treatment of food ranges from 300 to 600 MPa, depending on the food being processed and the desired results, higher pressure giving better and more economical results. However, there are currently no predictable, reliable, and repeatable safety devices available for very high pressures like 600 MPa. Rupture disks have a short life at these pressures, and pressure relief valves for very high pressure are not repeatable. Thus the possibility of using a system design is an attractive alternative that will make the overpressure protection more reliable and controllable In current applications, high-pressure vessels normally operate from a few MPa to 200 MPa, for example when extracting substances, compacting powder materials, or healing defects in materials. The pressure medium is typically a pure gas or a liquid. Here existing devises serve their purpose. The request for mild treatment of food to enhance safety and quality has created a niche for very high pressure. With this new technique the food is treated at low temperature and high pressure for a short time. The treatment inactivates microorganisms but maintains the nutritional and organoleptic values of the food, achieving a food with high quality and increased safety throughout its commercial shelf life.
机译：处理食物所需的压力范围为300至600 MPa，具体取决于所加工的食物和所需的结果，较高的压力可提供更好，更经济的结果。但是，目前没有可预测，可靠和可重复使用的安全装置可用于600 MPa等极高的压力。破裂盘在这些压力下的寿命短，并且用于非常高压力的泄压阀不可重复。因此，使用系统设计的可能性是一种有吸引力的选择，它将使过压保护更加可靠和可控。在当前应用中，高压容器通常在几MPa至200 MPa的压力下运行，例如在提取物质，压实粉末材料，或修复材料中的缺陷。压力介质通常是纯气体或液体。现有的设计在这里可以达到目的。要求对食品进行温和处理以提高安全性和质量的要求已经为非常高的压力创造了利基市场。使用这种新技术，可以在短时间内在低温和高压下处理食品。该处理使微生物失活，但保持了食品的营养和感官价值，从而在整个商业货架期内实现了高质量且安全性更高的食品。

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