Method and apparatus for on-line measuring two-dimension speed and particle size distribution of granules in pipe

A particle size distribution and internal particle technology, applied in the direction of measuring devices, particle and sedimentation analysis, particle size analysis, etc., can solve the problems of difficult site layout, complex system, expensive equipment, etc., and achieve strong field operability, compact measurement system, Inexpensive effect

CN101509931BInactive Publication Date: 2011-04-27ZHEJIANG UNIV
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2011-04-27
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to gas-phase and solid-phase flow particle online kinetic characteristic analysis technology, aiming at providing a method and a device which are used for the online measurement of intraductal gas-phase and solid-phase flow particle two-dimensional velocity field and particle size distribution. The device comprises a laser which is a low-power continuous laser of an emittingsheet laser; the laser is movably arranged on a guideway surrounding a pipeline to be measured, the plane of the guideway is vertical to the axial lead of the pipeline to be measured; a CCD camera isalso movably arranged on the guideway, with the lens direction vertical to the direction of the plane of the sheet laser; and the measured position of the pipeline is installed with a transparent glass window. The technology has low cost, compact measuring system and strong field operability, and can carry out online real-time measurement on particle field two-dimensional speed, particle size distribution and particle concentration to different sectional flow fields in the pipeline.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an online movement characteristic analysis technology of gas-solid two-phase flow particles, in particular to a method and device for online measurement of two-dimensional velocity field and particle size distribution of gas-solid two-phase flow particles in a tube. Background technique

[0002] Pneumatic conveying is an effective method of using airflow to transport granular solids in pipelines. It is an important technology in the current industrial production process and is widely used in the conveying and drying processes of granular and powder materials in various industrial sectors. Typical For example, the pipeline transportation of pulverized coal in power plants. In the actual production process, people need to know the status and changes of the conveyed particle flow in real time, so that the production process can be adjusted and optimized in time. Therefore, it is very necessary to develop an on-line monitoring dev...

Examples

Embodiment Construction

[0030] Referring to the accompanying drawings, the implementation method of the present invention will be described in detail below.

[0031] In the present invention, the device for realizing on-line real-time measurement of the two-dimensional velocity field and particle size distribution of gas-solid two-phase flow particles in the pipe includes a low-power continuous laser 1 emitting a light source; the laser 1 is movably installed in a surrounding industrial pneumatic conveying On the guide rail 5 of the pipeline 4, the plane of the guide rail 5 is perpendicular to the axis of the industrial pneumatic conveying pipeline 4; a CCD camera 2 equipped with a zoom lens is also movably installed on the guide rail 5, and its lens direction is perpendicular to the direction of the plane of the light source ; The measured position of the industrial pneumatic conveying pipeline 4 is equipped with a transparent glass window. Both the laser 1 and the CCD camera 2 can slide on the guid...