Real-time monitoring alarm equipment for leakage of long tube trailer

The invention relates to real-time monitoring alarm equipment for leakage of a long tube trailer. The real-time monitoring alarm equipment comprises a gas inlet device, a fuel cell electrode arrangement bin and a current detector, wherein the gas inlet device comprises a gas inlet channel and a ventilation hose, one end of the ventilation hose is communicated with the gas inlet channel, and the other end is communicated with a gas inlet of the fuel cell electrode arrangement bin; the fuel cell electrode arrangement bin comprises a bin body which is internally hollow and provided with a circulating channel on the peripheral wall, a solution capable of dissolving gas introduced into the ventilation hose and reacting with the gas is injected into the circulating channel, and a liquid seal ismounted between a gas inlet of the circulating channel and the ventilation hose; electrode bars are mounted in the circulating channel and connected with binding posts arranged on the current detector. The real-time monitorin