Optical probe pollution prevention method and device for sealed wind

A technology of optical probe and sealing air, which is applied in the direction of transportation and packaging, conveying bulk materials, instruments, etc., can solve the problems of high cost, pollution of optical probe, and unfavorable continuous online measurement of powder parameters, so as to reduce maintenance and improve reliability effect

Pending Publication Date: 2021-01-12
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

This solution is costly and not conducive to the continuous on-line measurement of powder parameters
[0003] In order to solve the ubiquitous problem of fine particles in the pipeline polluting the optical probe in the process of optical measurement of powder parameters by pneumatic conveying, the present invention proposes a wind-sealed optical probe anti-fouling device, which can still be flexible and effective in the case of running with powder Anti-fouling of the optical probes, so that each optical probe can be kept clean under the condition of running with powder, so that the industrial application of the optical measurement method of the pneumatic conveying powder parameters becomes possible

Method used

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  • Optical probe pollution prevention method and device for sealed wind
  • Optical probe pollution prevention method and device for sealed wind

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Embodiment Construction

[0024] The present invention will be described below according to the embodiments shown in the accompanying drawings. It can be thought that embodiment disclosed this time is an illustration in every point, and is not restrictive. The scope of the present invention is not limited by the description of the following embodiments but only by the scope of the claims, and includes the same meaning as the scope of the claims and all modifications within the scope of the claims.

[0025] The structure of the present invention will be described below in conjunction with specific embodiments.

[0026] figure 1 Shown is a structural schematic diagram of an optical probe antifouling device for sealing wind of the present invention, including:

[0027] Feeding mechanism 5: used for the generation of gas-solid two-phase flow, and transporting the gas-solid two-phase flow to the camera nozzle 2;

[0028] Photo nozzle 2: used for fluid control of the gas-solid two-phase flow, and the gas-...

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Abstract

The invention discloses an optical probe pollution prevention method and device for sealed wind. A feeding mechanism is controlled by a control unit to form gas-solid two-phase flow, the gas-solid two-phase flow is conveyed to a photographing spray head through a pipeline, and the gas-solid two-phase flow forms a thin-face fluid state through the photographing spray head and passes through a measurement area from top to bottom; and a suck-back device is arranged below the measurement area, photographed solid particles are recovered, and the solid particles in the gas-solid two-phase flow are prevented from polluting a backlight source and an optical lens of the measurement area. By means of the optical probe pollution prevention method and device, optical elements can be protected againstdust pollution for a long time, the maintenance amount is decreased, and the system operation reliability is improved.

Description

technical field [0001] The invention relates to an antifouling method and device for an optical probe for sealing wind. Background technique [0002] Pneumatic conveying is an effective method of conveying granular solids in pipelines by using airflow, and is widely used in powder conveying in various industrial sectors, such as pipeline conveying of solid fuels such as coal powder in thermal power plants. Accurate on-line measurement of pneumatic conveying powder parameters such as particle size and speed is of great significance to ensure production safety and improve production efficiency. In the measurement of pneumatic conveying powder parameters, the existing measurement methods include sieving method, acoustic method, electrostatic method and optical method. Compared with other measurement methods, the optical method has the advantages of intuitive measurement results, simple follow-up processing, and high measurement accuracy. However, there is also a significant p...

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Application Information

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IPC IPC(8): B65G53/66B65G53/34B65G53/40G01N15/00
CPCB65G53/34B65G53/40B65G53/66G01N15/00
Inventor黄孝彬吴国勋
OwnerNORTH CHINA ELECTRIC POWER UNIV (BAODING)