Dust monitor capable of adjusting monitoring height

Abstract

The invention discloses a dust monitor capable of adjusting monitoring height, which comprises a machine body and an electrostatic sensor detection probe, and is characterized in that the machine body is provided with a display screen and a control button positioned below the display screen, the machine body is mounted in a mounting frame, and the bottom of the mounting frame is fixedly connected with a fixing block. The fixing block is installed in the U-shaped installation block and is adjusted and fixed through fastening pieces in threaded connection with the two sides of the U-shaped installation block, the bottom of the U-shaped installation block is fixedly connected with a supporting rod, and the electrostatic sensor detection probe is fixedly connected to one side of a sliding rod in sliding clamping connection in the installation box through a connecting block. A rotating gear connected with a rotating motor is arranged on the other side of the sliding rod and located on one side of the bottom of the installation box, the rotating gear is connected with a tooth groove formed in the sliding rod in an engaged mode, and a sliding groove opening for the electrostatic sensor detection probe to slide is formed in the installation box.

Description

technical field [0001] The invention relates to the field of dust monitors, in particular to a dust monitor with adjustable monitoring height. Background technique [0002] Dust concentration monitors mainly include capacitance method, β-ray method, light scattering method, light absorption method, electrostatic method, ultrasonic method, microwave method and other online dust concentration measurement methods. Among them, the electrostatic method is to use the charging properties of solid particles, through the measurement and analysis of electrostatic signals, and finally obtain the two-phase flow parameters. Since the charging of solid phase particles is affected by the physical and chemical properties of the solid phase particles themselves, as well as environmental conditions such as temperature and humidity, the charging law is complex and cannot be described by simple mathematical formulas. But by designing a reasonable electrostatic sensor and signal amplification a...

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Problems solved by technology

[0003] Therefore, the dust concentration monitor based on the principle of electrostatic sensor and electrostatic method has higher measurement accuracy and more accurate measurement results. However, the existing dust concentration monitor is usually fixedly installed at a certain position in the environment to be measured. Therefore, it is only possible to measure the dust concentration near the installation location, and due to the difference between the air velocity and other conditions such as temperature and humidity in the environment to be measured, the dust concentration in each place is different, so the existing dust concentration The measurement results of the monitor are too simple and cannot accurately reflect the dust concentration in various places in the environment to be measured

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