Method and device of measuring powder moving speed

A technology of moving speed and powder, which is applied in the direction of measuring device, fluid speed measurement, speed/acceleration/shock measurement, etc.

Inactive Publication Date: 2017-04-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the powder is different from liquid and gas, the above method cannot be used to measure the flow velocity, which makes the measurement of the moving flow velocity of the powder in the tube a difficult point in this field

Method used

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  • Method and device of measuring powder moving speed
  • Method and device of measuring powder moving speed
  • Method and device of measuring powder moving speed

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Embodiment Construction

[0017] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0018] figure 1 It is a schematic diagram of the mechanism of the device for measuring the moving speed of powder provided by the present invention. The powder moves in the pipeline, such as figure 1 As shown, the device for measuring the moving speed of the powder provided by the present invention may include: a heater (not shown), located at a position A on the pipeline and periodically heating the tube wall P at the position A A heating; the first temperature detector 10 is located on the pipe wall P A Downstream pipe wall P B , for measuring through the pipe wall P B The temperature of the powder; the second temperature detector 20 is located on the tub...

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Abstract

The invention relates to a chemical field, an energy field, an environmental protection field, a pharmaceutical field, and a food processing field, and discloses a method and a device of measuring powder moving speed. Powder moves in a pipeline. The method comprises steps that the pipe wall PA at the position A of the pipeline is heated periodically; the time TB and the time TC of the powder having the highest temperature passing by the pipe wall PB and the pipe wall PC disposed on the downstream of the pipe wall PA in the time corresponding to the heating period are respectively measured, and a distance between the pipe wall PB and the pipe wall PC is D; the moving speed of the powder in the time corresponding to the heating period is calculated based on the time TB, the time TC, and the distance D. The method and the device of measuring the powder moving speed are provided, and an important condition is provided for subsequent analysis.

Description

technical field [0001] The invention relates to the fields of chemical industry, energy, environmental protection, pharmacy and food processing, in particular to a method and device for measuring the moving speed of powder. Background technique [0002] In the fields of chemical industry, energy, environmental protection, pharmaceuticals, food processing, etc., a large amount of powder is usually fed or transported through pipelines, which can often be summarized as follows: For example, there is a vertical or inclined feeding pipe at the bottom of the powder silo, Under the action of gravity, the powder moves from top to bottom through the feeding pipe; the speed of powder movement can be controlled by the valve at the lower end of the feeding pipe. In order to prevent the valve from clogging, there may be a small amount of looseness at the valve. The wind blows in. For example, the pulverized coal feeding device of some boilers, the powder return pipe device of the circul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/18
Inventor 郭大为张久顺毛安国王巍张晨昕
Owner CHINA PETROLEUM & CHEM CORP
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