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Two-phase flow metering unit used for wet gas

A metering unit and natural gas technology, applied in the direction of gas/liquid distribution and storage, pipeline system, mechanical equipment, etc., can solve the problems of unfavorable fine management and large influence of oil and gas measurement, and achieve the effect of simple structure and good accuracy

Inactive Publication Date: 2017-04-05
张鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned measurement defects that have a great influence on the measurement of oil and gas volume, which is not conducive to the refined management of enterprises, a secondary measurement instrument has been developed in the prior art to improve the above-mentioned measurement error, and further improve the function and structure of the secondary measurement instrument It is bound to solve the problem of the accuracy of such fluid metering, and the present invention provides a metering unit for condensate natural gas two-phase flow

Method used

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  • Two-phase flow metering unit used for wet gas

Examples

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Effect test

Embodiment 1

[0018] Such as figure 1 As shown, a metering unit for two-phase flow of condensed natural gas includes a DSP chip and an A / D conversion module connected to the signal input terminal of the DPS chip, and also includes SDRAM, FLASH module, and RTC chip connected to the DSP chip And CPLD external clock circuit, also connected with keyboard and display screen on described CPLD external clock circuit.

[0019] In this embodiment, the set DSP chip is used for data processing, the set A / D conversion module is used for the acquisition of analog signals, the set SDRAM and FLASH modules are used for data storage, and are used for original pressure, temperature, pressure The difference data and the data signal after the continuation and processing are saved, and the RTC chip and the CPLD external clock circuit of the setting are used as the clock program module to record the current time, the system running time and the periodic interruption processing etc., the display of the keyboard s...

Embodiment 2

[0021] The present embodiment is further limited on the basis of embodiment 1, as figure 1 As shown, in order to further improve the stability of the system and enrich the functions and controllability of the system, the DSP chip is also connected with a watchdog circuit.

[0022] The DSP chip is also connected with a JTAG test interface circuit.

[0023] The DSP chip is also connected with a reset circuit.

[0024] It also includes a USB interface module, which is connected with the DSP chip and the CPLD external clock circuit.

[0025] It also includes a power supply module connected with the DSP chip, and the power supply module includes a power supply circuit, a voltage detection module and a farad capacitor.

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Abstract

The invention discloses a two-phase flow metering unit used for wet gas. The two-phase flow metering unit comprises a DSP chip and an A / D conversion module connected to the signal input end of the DPS chip. The two-phase flow metering unit further comprises an SDRAM, a FLASH module, an RTC chip and a CPLD external clock circuit which are connected with the DSP chip. A keyboard and a display screen are further connected to the CPLD external clock circuit. The two-phase flow metering unit is simple in structure, real-time flow feedback of the wet gas can be conveniently achieved, the changes of flow along with the passage of time are reflected in feedback information, and the flow statistic accuracy of the wet gas is facilitated.

Description

technical field [0001] The invention relates to the field of fluid conveying pipe fittings, in particular to a metering unit for condensed natural gas two-phase flow. Background technique [0002] Electronic monitoring equipment is widely used in fluid delivery pipeline systems. Compared with mechanical metering equipment, it can facilitate remote transmission, small size, and easy equipment maintenance. It is widely used in people's daily life and industrial production. : Such as urban tap water, natural gas pipeline network system; industrial fluid transmission pipeline system, etc. [0003] During the exploitation of natural gas fields, with the continuous increase of the production period, the content of impurities in the output of gas wells will gradually increase. Usually the above impurities are condensed liquid hydrocarbons and water. Such natural gas is called condensed natural gas. The metering method of this kind of natural gas in the prior art is to separate the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D1/02F17D3/18
Inventor 张鹏
Owner 张鹏
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