I. Product Overview: 1, the application of new TQX submersible aerator (hereinafter referred to as aerators) applies to the sewage treatment plant aeration tanks, aerated grit chamber, can also be used for small-scale sewage treatment works, industrial wastewater treatment and water reuse projects, river landscape works. 2, the working conditions of a, medium temperature does not exceed 40 ℃; PH value of b, the medium between 5 ~ 9; c, medium density does not exceed 1150kg / m ?; d, diving depth should not exceed the maximum permissible diving depth; aerators should be completely underwater operations, not in an explosive atmosphere or corrosive liquids environmental work! 3, the structure and function: 3,1 aerator: aerator by submersible motors, intake chamber, mixing chamber, impeller, guide wheel, base, intake manifold and muffler components. An intake pipe connected to the upper end of the muffler, the air inlet is located above the water surface, the lower end of the intake chamber Unicom. Due to the rotation of the impeller, high-speed water outflow from the impeller outlet runs through the mixing chamber to form a vacuum, so the air is sucked through the intake chamber mixing chamber is mixed with sewage, gas and water mixture from the mixing chamber flow channel high-speed jet, the completion of the sewage charge oxygen. Specially designed aeration aerator can achieve the best performance. 3,1,1, aerator motor three-phase squirrel cage motor motor, protection class IP68, insulation class routine for class F; motor can run continuously, can start within 10 times per hour; motor load rated When the power within its rated voltage deviation of 380V ± 5%; motor temperature by circulating water around the cooling. Motor composed of a rotor shaft and the rotor assembly, is provided as an integral part. 3,1,2, by bearing oil chamber cavity with mechanical seal seat formed within the reservoir 32, a mechanical lubricant for lubrication and cooling mechanical seal, and have the effect of isolating the leak fluid. 3,1,3, bearings are imported disposable lubricated bearings, the design life of 100,000 hours. 3,1,4, aerators end face seal, radial seal with O-ring seal and flat sealants; cable entry seal watertight cable using special processing to block external liquid into the motor; axial seal bidirectional mechanical seal, respectively, and the motor oil chamber is sealed; appearance of the multi-pass brushing anticorrosive paint and polyurethane topcoat effectively prevents liquid on the periphery of the motor, the oil chamber of penetration. Switch off 3,1,5, monitoring devices and above rated power 2.2kW aerators, respectively, through over-temperature sensor that has been set (stator built two series with the thermal switch, when the temperature rose to 135 ℃ open, cut off the power) and oil chamber leak protection (oil chamber equipped with leak probe, timely reflect the changes in the oil mixture indoor water resistance value) of the motor over-temperature oil chamber leak protection and monitoring. 3,1,6, optimal design of the impeller wheel to ensure the efficient, non-blocking operation. 3,1,7, the mixing chamber through the air intake chamber into the mixing chamber gas-water mixture, mixing uniformly, efficiently, and can control the ejection direction.