Inhalable dust concentration detection device and method

Abstract

The invention relates to an inhalable dust concentration detection device and method, which belong to the technical field of dust concentration detection. The device comprises a dust filtering device, a dust concentration detection device, a human body breathing characteristic simulation device, a sensor and a control center, wherein the sensor comprises a differential pressure sensor, a flow sensor and a human respiratory rate monitoring device; the dust filtering device, the dust concentration detection device and the human body breathing characteristic simulation device are sequentially connected through a pipeline; the control center is connected with the differential pressure sensor, the flow sensor and the human body breathing frequency monitoring device, human body breathing frequency information, the gas flow in the pipeline and the differential pressure at the two ends of the dust filtering device are integrated, the motion state of the human body breathing characteristic simulation device is adjusted, and the gas flow speed of the pipeline is approximately close to the breathing gas amount of a worker. The device can simulate and detect the concentration of dust absorbed by a human body after individual protection, and provides data support for occupational health of workers.

Description

Technical field [0001] The present invention belongs to the field of dust concentration detection, and it is related to a suctionary dust concentration detecting device and method. Background technique [0002] Coal mine mining workplaces produce a large amount of dust, dust particle size is different, but dust generating harmful to the human body is a respiratory dust of 10 um, long-term contact with respiratory dust, is prone to occupational dustpiculum disease, so workers are mandatory Do individual protection, wear mask, which makes the dust contact with the worker into the dust concentration after the mask is filtered, whereby the dust contact with the worker is not a dust floating outside (the concentration of the two). [0003] Since the professional health requirements of the coal mine are increasing, the requirements for dust concentration detection are increasing, and the current dust concentration sensors are dust concentration, that is, various particle sizes of vario...

AI Technical Summary

Problems solved by technology

[0003] Due to the increasingly stringent occupational health requirements in coal mines, the requirements for dust concentration detection are becoming more and more stringent. At present, dust concentration sensors are used to test the total dust concentration, that is, dust of various particle sizes floating in the air. The average person wears a mask, which cannot represent the dust in the human body's inhalation mouth and nasal cavity

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