Measuring device and measuring method of natural gas flow rate

A gas flow and measurement method technology, applied in the direction of measuring devices, measuring flow/mass flow, liquid/fluid solid measurement, etc., can solve the problems of low natural gas measurement range ratio, inconvenient power supply, etc., and achieve simple structure and fast response Effect

Active Publication Date: 2016-01-20
CHINA JILIANG UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a natural gas flow measurement method and device that can be powered by a battery, low power consumption and has a wide measurement range, which can solve the problems of low natural gas measurement range ratio and inconvenient power supply. Detects backflow in pipelines

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
  • Measuring device and measuring method of natural gas flow rate
  • Measuring device and measuring method of natural gas flow rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Further illustrate the present invention below in conjunction with accompanying drawing.

[0010] refer to figure 1 , the device of the present invention is composed of thermal resistance RS1, RS2, RS3, RS4 and sensing element 1 made of platinum resistance Pt, and is composed of precision resistance R 1 , R2, R3, potentiometer R4, operational amplifier and PNP transistor composed of sensing circuit 2, signal amplifier 3, filter 4, microcontroller 5 composition. The voltage signals V2 and V3 output by the sensor element 1 and the voltage signal V1 output by the sensor circuit 2 are respectively connected to the input terminals of the three filters 4 after passing through the three signal amplifiers 3, and the output terminals of the three filters 4 are connected to the single chip microcomputer 5 AD sampling interface connected. The measuring method of the present invention is to place the sensing element made of thermal resistors RS1, RS2, RS3, RS4 and platinum resist...

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

The invention relates to a measuring device and method of natural gas flow. The measuring device is composed of a sensor, a sensing circuit, signal amplifiers, filters and a single chip microcomputer, wherein the sensor is composed of four thermal resistors and a platinum resistor, and the sensing circuit is composed of four precision resistors, a potentiometer, an operation amplifier and a triode. Two voltage signals output by the sensor and a voltage signal output by the sensing circuit pass the three signal amplifiers and then are connected with the input ends of the three filters respectively, and the output ends of the three filters are connected with an AD sampling port of the single chip microcomputer. The measuring device and method are simple in structure, the four thermal resistors and the platinum resistor serve as sensing elements, a gas flow measuring and direction detection circuit is designed, and the gas flow is measured in a constant temperature difference method. A measuring circuit is powered up through a battery, and the problem that power supply is inconvenient in remote areas is solved. As is shown in an experiment, the measuring device is high in response speed in gas flow measurement, response time is less than 10ms, and the measuring range is 0-50m / s.

Description

technical field [0001] The invention belongs to the technical field of natural gas flow measurement, and relates to a measurement device and a measurement method for natural gas flow. Background technique [0002] As a high-quality, high-efficiency, clean energy and important chemical raw material, natural gas has been widely valued and used preferentially in all countries in the world. It has brought a clean environment and high-quality life to human beings. As the status of natural gas as an environmentally friendly energy source continues to rise, and as an important part of the natural gas industry, the measurement of natural gas runs through the process of exploitation, transportation, storage, trade and use of natural gas, so the measurement of natural gas is a scientific An important technical task of management. However, the temperature and pressure of natural gas vary greatly, the flow range varies widely, and the pipe diameter is large and irregular in shape. As a...

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 Patents(China)
IPC IPC(8): G01F1/68G01F1/696
Inventor 赵伟国谈红伟朱炜
Owner CHINA JILIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap