QYW-type sewerage blowdown submersible pump uses a vane air motor in the power section, automatic centrifugal speed control and other institutions, to ensure high-speed operation within the rated range, is the ideal digging wells, well-draining tools. QYW series of pneumatic sabotage sewage submersible pump overall structure is simple, easy assembly and disassembly and maintenance of mobile, containing gas and coal dust and other flammable and draining operation of the surface is absolutely safe and reliable, and the exhaust port configuration with independent knowledge Property series of new low-noise, greatly reducing the amount of noise, measured ≤ 75db (A), greatly improving the working conditions downhole conditions. Structure and working principle QYW sand blowdown sewage pneumatic submersible pump by the gas motor, pumps, lubricators, fittings and other components. 1. Air motor parts: the rotor, blades, cylinders, shell, the upper and lower cylinder head, roof and other components. The rotor has five evenly distributed radial slots equipped with blades in the slots and the upper and lower cylinder heads each have an air blowing eye. When the air pump is started, the high-pressure air blows away the blades in the slots from the blowing eye, High-pressure gas from the main air duct into the cylinder, promote the blade, to drive the rotor to work. Leave a sealed chamber below the housing, the chamber with a seal to gas and water separated. Seal åœ spring seal, and the use of gas and water pressure, the seal up, and enhance the sealing effect. 2. Pump body part: by the pump body, impeller, pump cover, pump seat and other components. Impeller mounted on the rotor shaft, tighten the impeller nut, fitted pump body, pump seat, into the water, the rotor drive impeller rotation, under the action of centrifugal force, the water pressure into the pump vortex, and discharged along the outlet pipe. 3. Oil mist part: from the oil mist shell, oil mist core, oil regulating valve and other components. Oil mist device installed in the roof, the shell filled with oil. 4. Fittings: Quick combination of fittings and quick change fittings two parts. Quick combination of fittings installed in the outlet, and quick change fittings are installed in the intake.
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