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Metering unit for two-phase flow of condensate natural gas

A measurement unit, natural gas technology, applied in the direction of volume flow measurement device, liquid/fluid solid measurement, measurement device, etc., can solve problems such as unfavorable refined management, large impact on oil and gas volume measurement, etc., and achieves a simple structure and is conducive to accuracy. Effect

Inactive Publication Date: 2015-11-04
CHENGDU GUOGUANG ELECTRONICS INSTR
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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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  • Metering unit for two-phase flow of condensate natural gas

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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 respectively used for original pressure, temperature, pressure The difference data and the data signal after the continuation and processing are preserved, and the RTC chip and CPLD external clock circuit provided are used as the clock program module for recording current time, system running time and periodic interruption processing etc., the display of the keyboard pr...

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 metering unit for two-phase flow of condensate natural gas. The metering unit comprises a DSP chip, an A / D conversion module connected to the signal input end of the DSP chip, an SDRAM, a FLASH module, an RTC and a CPLD external clock circuit, wherein the SDRAM, the FLASH module, the RTC and the CPLD external clock circuit are connected with the DSP chip. The CPLD external clock circuit is further connected with a keyboard and a display screen. The metering unit is simple in structure; real-time feedback of the flow of the condensate natural gas can be conveniently achieved, the change of the flow along with time can be reflected in feedback information, and the accuracy of statistics of the flow of the condensate natural gas can be improved.

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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IPC IPC(8): G01F7/00
Inventor 吕忠贵
Owner CHENGDU GUOGUANG ELECTRONICS INSTR
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