| 摘要 |
A method of positively indicating leaks in the heat transfer surface area of a heat exchanger between the normally separate fluid paths denoted by side (A) and side (B) arranged in a heat exchange relationship is disclosed. The method comprises: placing a detector gas or gas mixture on one side; placing a carrier or entraining liquid in the other side; applying a positive pressure differential between detector gas and carrier fluid; and detecting entrained bubbles within the carrier fluid.
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