Super-high-temperature high-voltage dust specific resistance measuring device

Abstract

The invention discloses a super-high-temperature high-voltage dust specific resistance measuring device, comprising an electric heater, a high-voltage DC power, a high-temperature electric furnace, a low-voltage electrode, a circular high-voltage electrode, a low-voltage electrode suspending mechanism and a high-voltage electrode bracket, wherein the low-voltage electrode and the circular high-voltage electrode are all positioned in the high-temperature electric furnace, the low-voltage electrode is above the circular high-voltage electrode, a dust sample is arranged between the low-voltage electrode and the circular high-voltage electrode, the low-voltage electrode is connected with a negative electrode of the high-voltage DC power through the low-voltage electrode suspending mechanism and a tiny current detecting instrument; the high-voltage electrode bracket is fixed below the high-temperature electric furnace and is connected with the positive electrode of the high-voltage DC power, an upper end thereof is propped against the bottom of the circular high-voltage electrode after passing through a through hole on a baseboard of the high-temperature electric furnace, and the high-voltage electrode bracket is separated from the high-temperature electric furnace baseboard. The super-high-temperature high-voltage dust specific resistance measuring device effectively solves the problems that efficient insulation to the high-voltage electrode cannot be used in the traditional measuring device since the insulation property of the solid insulation material is reduced in high temperature; the specific resistance, breakdown voltage and leakage current of the dust can be accurately measured on super-high-temperature of 1000 DEG C.

Description

technical field [0001] The invention relates to a device capable of accurately measuring dust specific resistance under ultra-high temperature conditions, belonging to the field of measurement technology. Background technique [0002] The so-called "specific resistance" of dust is the resistivity, that is, the resistance value of the dust layer per unit thickness (cm) and unit area (cm2). Dust specific resistance characteristics are of great significance in the field of electrostatic dust removal technology and other powder electrostatic application fields. [0003] The measurement of dust "specific resistance" is generally carried out in an electrode box with adjustable temperature. During the measurement, the dust sample is placed between the high and low voltage electrodes in the electrode box, and the high voltage output terminal of the DC high voltage power supply is connected to the electrode box. The high-voltage pole in the battery is connected, and the low-voltage ...

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Problems solved by technology

First of all, it is impossible for us to predict the high-temperature insulatio

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