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US6044692A Ultrasonic method of testing a plate heat exchanger for leakage 失效
超声波检测板式换热器的泄漏方法

Ultrasonic method of testing a plate heat exchanger for leakage
摘要:
A vessel such as a dairy pasteuriser having a path B for product and a separate path A for coolant in intimate relationship is tested for leaks by circulating a donor fluid under pressure in path A whilst a recipient fluid such as clean tap water is circulated in path B. The donor fluid is a gas, and leakage is detected using an ultrasound probe.
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