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A portable resistance-capacitance method for on-line measurement of dust moisture content and method

A measuring device and portable technology, which is applied in the direction of measuring devices, material capacitance, instruments, etc., can solve the problems of low versatility and poor portability, and achieve the effects of improving measurement accuracy, constant temperature, and shortening length

Active Publication Date: 2022-07-19
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the fact that the characteristics of thermal power plant dust and mine dust are quite different, and the existing dust moisture content measurement device cannot well adapt to the problem of online moisture content measurement of the two types of dust, the present invention provides a portable resistance-capacitance dust content measurement device. Humidity on-line measuring device and method; the invention solves the problems of poor equipment portability and low versatility, enables the instrument to measure the moisture content of thermal power plant dust and mine dust, improves the accuracy of dust measurement, and prolongs the use of equipment Long life, improving the versatility and portability of the equipment

Method used

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  • A portable resistance-capacitance method for on-line measurement of dust moisture content and method
  • A portable resistance-capacitance method for on-line measurement of dust moisture content and method
  • A portable resistance-capacitance method for on-line measurement of dust moisture content and method

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Experimental program
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Effect test

Embodiment 1

[0042] combine figure 1 , a portable resistance-capacitance method dust moisture content on-line measuring device in this embodiment, including probe rod 4 and housing 10. The probe rod 4 is made of stainless steel to ensure its corrosion resistance. The probe rod 4 is a retractable probe rod, that is, the probe rod 4 is divided into two sections, and the two sections of support rods are connected by a snapping method. The whole length of the probe rod 4 is shortened by being retracted into another section of the rod (hereinafter referred to as the second half of the rod), so that the measuring device is portable.

[0043] combine image 3 , after the probe rod 4 is connected with the housing 10, a sealing assembly is used for sealing. The sealing assembly includes a sealing ring 8 and a packing ring 9, wherein the sealing ring 8 is a metal rubber sealing ring, and the packing ring 9 is a polytetrafluoroethylene. Packing ring, the packing ring 9 is arranged between the casi...

Embodiment 2

[0053] A portable resistance-capacitance method for on-line measurement of dust moisture content in this embodiment is basically the same as that in Embodiment 1, except that a water-cooling component is provided inside the housing 10, and the water-cooling component includes a water tank 14, a water pump 15, and a connecting pipe. 16 and the water cooling jacket 17, the water tank 14, the water pump 15 and the water cooling jacket 17 are connected by the connecting pipe 16 to form a water circulation passage, the water cooling jacket 17 is sleeved outside the exhaust pipe 7, and one end of the exhaust pipe 7 is connected to the probe rod 4, The other end is open to the outside of the casing 10 . The water pump 15 is a miniature water pump and weighs about 450g, which improves the portability of the equipment while ensuring the circulating flow. The water flow in the water cooling jacket 17 exchanges heat with the gas in the exhaust pipe 7, thereby reducing the temperature of ...

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Abstract

The invention discloses a portable resistance-capacitance method on-line measuring device and method for dust moisture content, belonging to the technical field of dust measurement. One end of the probe rod of the measuring device is connected with the casing, and the humidity sensor is arranged inside the probe rod; the first filter layer and the second filter layer are arranged on the end of the probe rod away from the casing, and the heating film is laid on the inner wall of the probe rod; the The first filter layer adopts electrostatic filter screen, and the second filter layer adopts SiO 2 ‑PTFE film-coated filter material, the heating film is bonded to the inner wall of the probe rod through an adhesive; the base material of the heating film is a high temperature resistant polyester film, the conductor in the heating film is graphene, and the heating film is directly connected to the power supply through a wire . There is also a water-cooling component in the shell. The water in the water-cooling component and the water in the water-cooling jacket circulates, which can effectively reduce the temperature of the flue gas. The measuring device is comprehensively developed for different dust characteristics. It can measure the moisture content of thermal power plant dust and mine dust. It has the advantages of fast response speed, high measurement accuracy and high versatility.

Description

technical field [0001] The invention relates to the technical field of dust measurement, and more particularly, to a portable resistance-capacitance method for on-line measurement of dust moisture content and a method. Background technique [0002] In recent years, the state has formulated a series of relevant policies for the environmental protection industry, which has elevated the environmental protection industry to the status of a strategic emerging industry and a new pillar industry of the national economy. There are a large number of thermal power plants and open-pit mines in my country, and a large amount of dust will be generated during the production process. Due to the high moisture content of the dust, the filter material of the dust collector will have phenomena such as condensation, bag sticking, and difficulty in cleaning, which greatly affects the dust removal. Therefore, it is necessary to adjust the properties of the filter material of the dust collector acc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/22
CPCG01N27/223
Inventor 钱付平刘哲陈路敏薛沚怡魏民叶蒙蒙鲁进利韩云龙
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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