Air Brake Storage Tank Leak Detection

Project Overview:

System must check three internal compartments and external welds for leakage. Leak rates of 1x10-² std. ml/sec. must be detected.

System Description:

Dual Channel system, the first channel consists of 8 microphones summed into one channel. The second channel consists of one .60" diameter microphone with 5/8" threaded fitting, alarm threshold set points, relay contact closure and white noise sensitivity validation.

Two stage testing: The internal compartment is checked first. A 0.60" microphone is screwed into a 5.8" threaded fitting of the center section. The two outside sections are pressurized to 300 psi. The internal .60" microphone is activated to detect leaks in the internal chambers. Stage two: All three compartments are pressurized to 300 psi. Eight microphones placed strategically around the external surface of the tank, are activated to detect for any leakage to atmosphere.