A method of leak testing an assembled plate type heat exchanger

Details A method of leak testing an assembled plate type heat exchanger A method of leak testing an assembled plate type heat exchanger

G - Physics

01

M

G01M 3/06 (2006.01) G01M 3/10 (2006.01) G01M 3/22 (2006.01)

Patent

CA 2274613

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.

L'invention concerne un procédé permettant d'indiquer positivement les fuites dans la surface de transfert thermique d'un échangeur de chaleur, entre les trajectoires de fluide normalement séparées, désignées par les côtés (A) et (B) et disposées de manière à assurer un échange de chaleur. Ce procédé consiste à placer un gaz détecteur ou un mélange de gaz d'un côté; à placer un vecteur ou un liquide d'entraînement de l'autre côté; à appliquer un différentiel de pression positive entre le gaz détecteur et le fluide vecteur; et à détecter les bulles entraînées dans le fluide vecteur.

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