Novel runner type flow sensor

Abstract

The invention discloses a novel runner type flow sensor. The novel runner type flow sensor comprises a three-way pipeline mounting part, a sensor body, runners, a magnet-sensitive resistor and a flowdetector, wherein a threaded coupling is arranged at a side port of the three-way pipeline mounting part, a mounting cap is arranged at the root part of the sensor body, a seal ring is arranged at theouter wall part of an inserting rod of the sensor body, directional clamping buckles are arranged at the root part of the sensor body, two support legs are arranged at the top of the sensor body, rotating shaft holes are formed in side surfaces of the support legs, rotating shafts are mounted in the rotating shaft holes, the runners are arranged on the rotating shafts, magnetic steel is inlaid inthe runners, ventilating holes are formed in the inner sides of the runners, and the magnet-sensitive resistor is assembled on the inner side of the top of the sensor. According to the sensor, a rotating mode of a conventional rotor wing impeller is changed, the newest magnet-sensitive resistor acquisition technology is adopted for detecting the flow speed and flow, the same sensor can adapt to different pipeline apertures, replacement and mounting are simple, signals are stable, and emitted resistance signals are not easily interfered by the outside.

Description

technical field [0001] The invention relates to the technical field of fluid detection, in particular to a flow sensor that generates signals by relying on the flow of water itself, in particular a novel runner flow sensor. Background technique [0002] The flow sensor is a kind of fluid detection equipment. The currently known turbine flowmeter, whether it is a pipe section installation form or a plug-in installation form, is to place a turbofan structure impeller inside the pipe section or on the top of the plug-in type (similar to electric Fan impeller), the front of the impeller faces the fluid, the fluid flows in the pipe, and the impeller is driven to rotate. The edge of the impeller is glued to the magnetic steel or inserted into the magnetic steel. At the same time, the induction coil is set outside. When the impeller rotates, the magnetic field of the magnetic steel cuts the induction coil alternately. The corresponding coupling voltage is generated by the change of...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a novel runner flow sensor to solve the problems of modern impeller center offset, signal interference, and impeller size in the above-mentioned background technology.

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