The utility model relates to the field of detection devices, in particular to a liquid immersion type pressure
pipeline air tightness detection device, which comprises a liquid immersion box, a corrugated main
pipe, a lifting frame and an
air tightness immersion mounting
pipe, through a separation area formed by the wave impingement plate and the blocking lines, in combination with a built-in
infrared sensor, bubble dynamic states are monitored in real time, subjective errors of
naked eye observation are eliminated, tiny leakage is effectively recognized, the lifting frame is driven by the air cylinder to ascend and descend, the
water pressure in the liquid immersion box can be accurately adjusted, and pressure impacts of different working conditions on a pipeline can be simulated. Meanwhile, the wave impingement plate and the stabilizing plate cooperate to reduce
water flow fluctuation interference, the airtight soaking mounting
pipe is subjected to steering adjustment and air bag floating ball self-adaptive positioning, rapid
adaptation of different pipe diameters and mounting angles is supported, the operation complexity is reduced, an airtight sleeve and a
branch sleeve form a multi-layer sealing structure, and the service life is prolonged. The pressurizing box is combined to control the
air pump to dynamically compensate air pressure, misjudgment or equipment damage caused by sudden pressure change in the detection process is prevented, and the overall detection effect is improved.