Leakage detection early warning device for safety of chemical equipment

The utility model discloses a leakage detection early warning device for safety of chemical equipment, which comprises a fixed cylinder with openings at two ends, an air inlet is fixedly connected to a cylinder opening at one end of the fixed cylinder, a mounting frame is fixedly mounted in the fixed cylinder, and an air outlet is formed in the mounting frame. The air suction device has the advantages that when the air suction device is used, the driving motor can be started to drive the air suction fan blades to suck air, sucked air can flow in the fixing cylinder, and part of passing air can be collected by the air inlet pipe and injected into the air tester to be detected; and when a part with more air enters the pipeline, the part is directly discharged through the filter screen plate, the pressure in the air inlet pipe is increased when the air is excessive, and the filter screen plate is pushed and the air outlet is opened when the air pressure is higher, so that the redundant air can be discharged, and