Anti-blocking pressure probe for wind speed and wind direction detection device

Abstract

The invention discloses an anti-blocking pressure guidance probe of a wind speed and wind direction detection device, which comprises two pressure guidance tubes used for sampling, wherein a diversion trench is formed in a flow passage of each pressure guidance tube. The structure that the diversion trenches are formed in the pressure guidance tubes is adopted, and condensate water is eliminated, so that complete surface tension is formed to enable condensate water to flow out along the diversion trenches; the anti-blocking pressure guidance probe has better effects of condensate water prevention and dust blocking prevention, and is suitable for severe occasions such as a coal mine for measurement of wind speed and wind direction. The structure is simple, and the resistance to influence of dust and vapor is strong, so that accuracy and stability of measurement of the wind speed and wind direction detection device can be guaranteed; the two pressure guidance tubes with identical structures are adopted, so that the anti-blocking pressure guidance probe can be used for bidirectional measurement, is flexible, convenient, simple in structure, and easy to machine and assemble, and saves the use cost.

Description

technical field [0001] The invention relates to a safety auxiliary equipment suitable for underground coal mines, in particular to an anti-blocking and pressure-inducing probe of a wind speed and wind direction detection device. Background technique [0002] Mine ventilation is to continuously send the surface air to the underground, and at the same time continuously discharge the dirty air from the underground to the outside of the mine. Mine ventilation is the basis of safe production in coal mines. It not only has the important function of transporting fresh air to various underground wind sites and ensuring the breathing of underground workers, but also has the functions of diluting, removing mine gas and dust, and cooling the operating area. Reasonable ventilation is an important means to restrain the development of natural coal and fire, but if the ventilation system is not properly arranged or managed properly, it will be the main reason for the accumulation of gas an...

AI Technical Summary

Problems solved by technology

Most of the wind speed sensors in the prior art adopt the principle of ultrasonic vortex street, the measurement method is relatively simple, the use of equipment is relatively restricted, not flexible enough, and it cannot realize two-way wind speed and wind direction measurement, and the long-term work of the probe is easily affected by dust and water vapor, which affects the measurement accuracy; Sensors based on the principle of differential pressure measurement, such as shrink tube wind speed sensors, are still unable to achieve accurate measurement of two-way wind speed and wind direction

Images