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Dynamic measurement system and method for electrostatic charge density of liquid in pipeline

A dynamic measurement and electrostatic charge technology, applied in measurement devices, measurement of electrical variables, instruments, etc., can solve the problems that the volume of Faraday cylinders is not suitable for dynamic measurement, changes, and large diameters of pipes.

Pending Publication Date: 2019-08-06
SUN YAT SEN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This measurement method has limitations: on the one hand, the electrostatic charge of the liquid will change when the liquid flows into the Faraday cage due to the influence of external factors; fast time

Method used

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  • Dynamic measurement system and method for electrostatic charge density of liquid in pipeline
  • Dynamic measurement system and method for electrostatic charge density of liquid in pipeline
  • Dynamic measurement system and method for electrostatic charge density of liquid in pipeline

Examples

Experimental program
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Embodiment 1

[0030] see figure 1 , a dynamic measurement system for the electrostatic charge density of the liquid in the pipeline, comprising: a charge removal module, a test pipeline, a microcurrent meter 14 and a flowmeter 16, the test pipeline is arranged at the rear end of the charge removal module, and the flowmeter 16 is arranged at the test At the back end of the pipeline, the static charge in the liquid flowing into the test pipeline is 0 after the liquid flows through the decharge module during the test. liquid flow.

[0031] In this embodiment, the charge removal module includes a conductive delivery pipe 11 and a dissipation tank 12; along the liquid delivery direction, both ends of the dissipation tank 12 are connected to the conductive delivery pipeline 11, and the dissipation tank 12 is also connected to the ground. Described test pipeline is conduction test pipeline 13, and the two ends of conduction test pipeline 13 install insulation sleeve 15 additionally, and one end o...

Embodiment 2

[0045] The difference between Embodiment 2 and Embodiment 1 is that the de-charge module includes a delivery pipeline 21, an insulating connecting pipeline 22 and a dissipation tank 12; The connecting pipe 22 is connected, and the fugitive tank 12 is also connected to ground.

[0046]In this embodiment, the test pipeline is an insulation test pipeline 23, and conductive sleeves 24 are installed at both ends of the insulation test pipeline 23. One end of the microcurrent meter 14 is connected to the conductive sleeve 24 at the rear end through a wire, and the other end is grounded. During the test, the liquid first flows through the escape tank 12 along the delivery direction, and the liquid carries static charges into the ground through the grounding on the escape tank 12, so that the static charge in the liquid flowing into the insulation test pipe 23 is zero. The micro ammeter 14 is connected with the stainless steel conductive sleeve 24 through the wire, so that the static ...

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Abstract

The invention discloses a dynamic measurement system for the electrostatic charge density of a liquid in a pipeline. The dynamic measurement system comprises a charge elimination module, a test pipeline, a micro-current meter and a flowmeter; a test pipeline is arranged at the rear end of the charge elimination module; the flowmeter is arranged at the rear end of the test pipeline; after a liquidflows through the charge elimination module in a testing process, electrostatic charges in the liquid flowing into the test pipeline are zero; the micro-current meter is used for measuring electrostatic charges generated on the test pipeline; and the flowmeter is used for testing the flow rate of the liquid flowing into the test pipeline. The measurement system provided by the invention is simplein structure and convenient to operate, can accurately measure the quantity of the generated electrostatic charges of the liquid in the liquid conveying process of the test pipeline, and provides reliable guidance for the selection of electrostatic hazard protection measures for the liquid conveying of the pipeline.

Description

technical field [0001] The invention relates to the technical field of static charge dynamic measurement, in particular to a dynamic measurement system and method for the static charge density of liquid in a pipeline. Background technique [0002] Pipeline transportation is one of the main methods of liquid storage and transportation. The process of pipeline transportation of gasoline, diesel and other flammable and explosive liquids will generate a large amount of static charge. The accumulation of static charges and electrostatic discharge may ignite flammable and explosive liquids and vapors, which may cause fire and explosion accidents. Therefore, it is very important to accurately measure the electrostatic charge of liquids transported by pipelines and select appropriate protective measures based on the measurement results to ensure the safety of flammable and explosive liquids transported by pipelines. [0003] At present, the method of measuring the static charge of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/24
CPCG01R29/24
Inventor 王良旺梁栋蒋漳河黄国健郑培奖
Owner SUN YAT SEN UNIV