Subway ventilation axial flow pump with adjustable guide vane device

Abstract

The invention relates to the technical field of axial flow pumps and discloses a subway ventilation axial flow pump with an adjustable guide vane device. The subway ventilation axial flow pump comprises an air cylinder, a base is fixedly mounted at the bottom of the air cylinder, a connecting seat is fixedly mounted on the left side of the air cylinder, a mounting block is fixedly mounted on the right side of the air cylinder, and supporting plates are fixedly mounted on both the left and right sides of the air cylinder. A top cylinder is fixedly mounted at the top end of the air cylinder, a connecting pipe is fixedly mounted at the top of the air cylinder, a bearing seat is fixedly mounted at the top of the connecting pipe, a driving motor is fixedly mounted at the top of the bearing seat, a rotating rod is fixedly mounted on an output shaft of the driving motor, and a driving shaft is movably mounted at the bottom of the rotating rod. An inserting groove is formed in the top of the driving shaft. According to the subway ventilation axial flow pump with the adjustable guide vane device, by arranging guide vanes, more air is sucked into the axial flow pump for ventilation, the subway ventilation axial flow pump can adapt to subways with a large air replacement amount, and the ventilation efficiency of the axial flow pump is improved.

Description

technical field [0001] The invention relates to the technical field of axial flow pumps, in particular to an axial flow pump for subway ventilation with an adjustable guide vane device. Background technique [0002] Axial flow pump relies on the force generated by the blades of the rotating impeller on the liquid to transport the liquid along the axial direction. There are several types of vertical, horizontal, inclined and through-flow pumps. Double mechanical seals can reliably prevent water leakage. Large pumps Due to the large axial force, special thrust bearings are used, with reasonable structural design, sufficient lubrication, good heat dissipation, and long service life of the bearings. [0003] According to the invention authorized by China CN 106567862 A, an axial flow pump for subway ventilation with an adjustable guide vane device has the beneficial effect of automatically adjusting the air volume of the air inlet at the inlet of the axial flow pump, so that the...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an axial-flow pump for subway ventilation with an adjustable guide vane device, which has the advantages of adjustable guide vane device and adaptation to the subway, and solves the problem of using the size of the air flowing into the pump body to automatically Change, the method of changing the size of the air inlet has relatively large limitations, and it is impossible to achieve the best use effect of the axial flow pump through the best adjustment, and it is generally effective in the subway where the frequency of wind speed changes is high.

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