Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Static induction space filter measuring method for gas-solid two phase tube flow particle speed

A technology of particle velocity and electrostatic induction, which is applied in the direction of fluid velocity measurement, velocity/acceleration/impact measurement, and measuring devices, etc., which can solve the problems that the measurement channels need to be matched and difficult to guarantee

Inactive Publication Date: 2007-06-27
SOUTHEAST UNIV
View PDF0 Cites 28 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-phase flow velocity measurement system based on related technology has a wide measurement range, strong adaptability, and does not hinder the flow. It can realize non-contact measurement of particles. type", and the measurement channels need to match, which is sometimes difficult to guarantee in the actual measurement process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Static induction space filter measuring method for gas-solid two phase tube flow particle speed
  • Static induction space filter measuring method for gas-solid two phase tube flow particle speed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] An electrostatic induction space filter measurement method of particle velocity in a gas-solid two-phase pipe flow, using an electrostatic sensor including a measuring probe and a preamplifier, the steps are as follows:

[0024] Step 1) At the radial position r, when the derivative of the power spectrum characteristic of the output signal of the electrostatic sensor is zero, there is:

[0025] a b exp ( - ( πf ) 2 b v 2 ) · ( 1 - 2 ( πf ) 2 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Using single circular ring type static sensor, the invention implement measures average velocity of grains, simplifies measuring device, and reducing dependence of flow condition between two phases of gas and solid. Belonging to non-contact type, the static sensor does not influence on flow condition of liquid in structure. Based on spatial filtering method of static sensor, the technique for measuring average velocity of grains possesses features of simple structure, convenience of processing signal, low cost, and high measuring accuracy. The invention is applicable to site environment of inclement industrial pneumatic transport. The invention carries out experimental study systematically on experimental installation of gravity handling grain flow, and compressive dense phase pneumatic transport system. The result indicates that the measuring system possesses good repeatability and stability.

Description

technical field [0001] The invention utilizes the space filtering effect of a ring-shaped electrostatic sensor to measure the particle average velocity of a gas-solid two-phase pipe flow, and relates to an electrostatic induction space filter measurement method for the particle velocity of a gas-solid two-phase pipe flow. Background technique [0002] The measurement of particle velocity is of great significance for understanding the internal state of the flow and for the measurement, energy saving and control of the production process. At present, there are a variety of particle flow velocity measurement methods, such as Doppler, cross-correlation, tracer method, etc., and these methods have their own characteristics and scope of application. The two-phase flow velocity measurement system based on related technology has a wide measurement range, strong adaptability, and does not hinder the flow. It can realize non-contact measurement of particles, but the velocity measureme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01P5/08
Inventor 许传龙王式民汤光华杨道业周宾
Owner SOUTHEAST UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com