Refrigerant commonly used methods of leak detection

Somewhere found visual leak detection systems have oil stains, perhaps for the leakage point. Visual easy leakage, no cost, but there is a big flaw, suddenly broken big funnelled, unless the system and the system leakage is the colored liquid medium, visual leak detection won't be able to locate. Refrigerant manufacturer soapy water leakage into 10 - to the system 20 kg/cm2 pressure of nitrogen, and then in each part of the system with soap and water, bubble point is the leakage point. This approach is now the most common methods of leak detection road repair shop, but the man's arm is limited, people of vision scope is limited, so most of the time don't see funnelled. Filling the 10 - nitrogen water leak detection to the system 20 kg/cm2 pressure nitrogen, put the system into the water, the bubble point is the leakage point. Soapy water leak detection in front of this method and the essence, while the cost is low, but there are obvious disadvantages: leak detection with moisture is easy to enter the system, lead to the system of material from corrosion, high pressure gas at the same time also is likely to cause more damage to system, carries on the leak detection when the intensity of labor is big, thus make the maintenance costs. Halogen light leak detection light leak detection, the air on the handheld halogen lamp tube, when the pipe mouth near the system leakage, flame color to purple blue, namely that here there is a lot of leakage. With open fires this way, not only is very dangerous, and flame and refrigerant will produce harmful gases, moreover also difficult to accurately locating funnelled. So few people use this way now, if you can see, it's probably is in the phase of a civilized society. Gas pressure difference inside and outside differential pressure leak detection using the system, the differential pressure through the sensor amplifier, expressed in the form of digital electrical signals or voice or leak detection results. This method is only 'qualitative' to know whether or not the system leakage and cannot find funnelled accurately.

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