CN203132616U - Combined type ultrasonic multichannel flow transmitter - Google Patents

Combined type ultrasonic multichannel flow transmitter Download PDF

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Publication number
CN203132616U
CN203132616U CN 201320132235 CN201320132235U CN203132616U CN 203132616 U CN203132616 U CN 203132616U CN 201320132235 CN201320132235 CN 201320132235 CN 201320132235 U CN201320132235 U CN 201320132235U CN 203132616 U CN203132616 U CN 203132616U
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CN
China
Prior art keywords
ultrasonic sensor
chip microcomputer
method ultrasonic
flow
time difference
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Expired - Fee Related
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CN 201320132235
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Chinese (zh)
Inventor
栾继军
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TIANJIN QIUJING SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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TIANJIN QIUJING SCIENCE AND TECHNOLOGY DEVELOPMENT Co Ltd
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Priority to CN 201320132235 priority Critical patent/CN203132616U/en
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Publication of CN203132616U publication Critical patent/CN203132616U/en
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Abstract

The utility model provides a combined type ultrasonic multichannel flow transmitter which comprises a single chip microcomputer, a switch control circuit, a measuring circuit, a liquid level transmitter, at least one group of time-difference method ultrasonic sensors and at least one group of Doppler method ultrasonic sensors, wherein the time-difference method ultrasonic sensors and the Doppler method ultrasonic sensors are connected with the single chip microcomputer through the switch control circuit; the measuring circuit is connected with the switch control circuit and the single chip microcomputer respectively; and the liquid level transmitter is connected with the single chip microcomputer. The flow transmitter can perform correlation analysis on data with various different measurement methods or a multi-point measurement method under the condition that components of a measured medium are complicated and change constantly, so that the speed and the flow of the medium in a pipeline can be accurately measured, changes of oil, water and gas can be effectively judged accordingly, and the speed and the flow of the medium in the pipeline can be measured stably.

Description

A kind of combined ultrasound wave multichannel flow transmitter
Technical field
The utility model belongs to ultrasound wave pipeline flow measurement instrument field, especially relates to a kind of usefulness one cover instrument and carries out the combined measuring instrument of multichannel time difference method Doppler method.
Background technology
Time difference ultrasonic flowmeter is the ultrasonic flowmeter of determining the flow velocity of detected fluid by the mistiming △ t that measures the adverse current that changes with ultrasonic propagation velocity and following current, and mistiming △ t and flow velocity are proportional, and its scale-up factor claims the flow correction coefficient.Nowadays time difference ultrasonic flowmeter is ripe, and it has the characteristics of accuracy height and good reliability.Yet ultrasound wave is on travel path as run into small solid particle or bubble can be scattered, and just can not work well when containing the fluid of this class thing with time difference method measurements, and it can only be used for measuring the relatively fluid of cleaning.
Doppler method utilizes ultrasound wave to be scattered this characteristics work just.According to acoustical Doppler effect, when between sound source and the observer relative motion being arranged, the acoustic frequency that the observer experiences will be different from the frequency that sound source is sent.This frequency change because of caused by relative motion is directly proportional with the relative velocity of two articles.So Doppler method just is being fit to measure the fluid that contains solid particle or bubble.But because scattering particle or bubble exist at random, the fluid sound conductivity also has difference, still hangs down so Doppler method and time difference method compare and measure precision.
Single time difference method or the Doppler method metering system of the many employings of the measurement of ultrasonic flow meter both at home and abroad at present.Because only being fit to liquid juice, measures time difference method, Doppler only be fit to measure liquid and the slurry that contains impurity and gas, and complicated and change time difference method or the Doppler method that heterogeneous fluid is single frequently and all can not satisfy continuously Testing requirement in real time for medium composition.
Summary of the invention
Problem to be solved in the utility model provides a kind of combined ultrasound wave multichannel flow transmitter, overcome the deficiency that exists in the above-mentioned technology, no matter how measured medium changes to reach, and transmitter is the flow velocity of medium and the purpose of flow in the measuring channel effectively.The utility model is specially adapted to the flow of the polyphasic flow of measuring media composition variation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of combined ultrasound wave multichannel flow transmitter, comprise single-chip microcomputer, control switching circuit, metering circuit, fluid level transmitter, at least one group of time difference method ultrasonic sensor and at least one group of Doppler method ultrasonic sensor, described time difference method ultrasonic sensor and Doppler method ultrasonic sensor link to each other with described single-chip microcomputer by described control switching circuit, described metering circuit links to each other with described single-chip microcomputer with described control switching circuit respectively, and described fluid level transmitter links to each other with described single-chip microcomputer.
Further, described time difference method ultrasonic sensor is installed on the outside of measured pipeline.
Further, described Doppler method ultrasonic sensor is installed on the outside of measured pipeline.
Further, described time difference method ultrasonic sensor adopts cylinder design, and the outside is with the base with cylindrical hole.
Further, described Doppler method ultrasonic sensor adopts cylinder design, and the outside is with the base with cylindrical hole.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, under the complicated condition that constantly changes of measured medium composition, utilize multiple different measuring mode and multimetering can effectively carry out the data correlation analysis, thus flow velocity and the flow of medium in the measuring channel exactly.And then can be so as to effective judgement oil, the gentle variation of water, flow rate in the stably measured pipeline.
Description of drawings
Fig. 1 is scheme of installation of the present utility model
Fig. 2 is the sensor construction synoptic diagram
Fig. 3 is theory diagram of the present utility model
Fig. 4 is the utility model control program block diagram
Among the figure:
1, measured pipeline 2, Doppler method ultrasonic sensor 3, time difference method ultrasonic sensor
Embodiment
As shown in Figures 1 to 4, the utility model is a kind of combined ultrasound wave multichannel flow transmitter, comprises single-chip microcomputer, control switching circuit, metering circuit, fluid level transmitter, at least one group of time difference method ultrasonic sensor and at least one group of Doppler method ultrasonic sensor.Schematic diagram as shown in Figure 3, described time difference method ultrasonic sensor and Doppler method ultrasonic sensor link to each other with described single-chip microcomputer by described control switching circuit, described metering circuit links to each other with described single-chip microcomputer with described control switching circuit respectively, and described fluid level transmitter links to each other with described single-chip microcomputer.Control switching circuit after testing result is carried out process analysis, calculates mean flow rate and flow accurately to many groups of touring detections of ultrasonic sensor that are installed on the pipeline under single-chip microcomputer instruction control.
As shown in Figure 1, time difference method ultrasonic sensor 3 and Doppler method ultrasonic sensor 2 all are installed on the outside of measured pipeline 1.Doppler method ultrasonic sensor 2 is two groups, and first group is oppositely arranged on the vertically left and right sides of section of bend pipe, second group of both sides up and down that are oppositely arranged on the bend pipe horizontal segment by two vertical references by two horizon sensors; Time difference method ultrasonic sensor 3 is one group, and two sensors are separately positioned on the both sides up and down of bend pipe horizontal segment, but the mutual alignment is not relative.The outside installation of employing pipeline is measured respectively by time difference method and Doppler method and is determined true flow rate in the measured pipeline by the measurement data analysis, is specially adapted to multiphase fluid measurements.
As shown in Figure 2, time difference method ultrasonic sensor and Doppler method ultrasonic sensor all adopt cylinder design, and the outside is with the base with cylindrical hole.Such configuration design can make sensor rotate in base easily, to regulate sensor orientation.
Gap sensor or Doppler method ultrasonic sensor when flow transmitter of the present utility model can be according to actual needs the sensor 2(ultrasound wave of two kinds of different measuring methods) be installed on same pipeline or many pipelines, utilize two kinds of different measuring modes and multimetering to carry out correlation analysis to measurement data effectively.Particularly when being measured, can adopt the crude oil oil well gap sensor and Doppler method ultrasonic sensor when on the transverse tube of same pipeline and standpipe, respectively ultrasound wave being installed, polyphasic flow in the pipeline is carried out correlation analysis, can effectively judge the variation of Oil, Water, Gas, flow velocity and flow in the stably measured pipeline.
The course of work of this example: workflow as shown in Figure 4, after the single-chip microcomputer initialization, gap sensor and Doppler method ultrasonic sensor go the rounds to detect during namely to the multichannel ultrasound wave, carry out the correlation analysis processing according to detecting data, thereby calculate flow velocity in the measured pipeline, flow and relevant sonic transmissions time data.Data after handling can store, show and export.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.

Claims (5)

1. combined ultrasound wave multichannel flow transmitter, comprise single-chip microcomputer, control switching circuit, metering circuit and fluid level transmitter, it is characterized in that: also comprise at least one group of time difference method ultrasonic sensor and at least one group of Doppler method ultrasonic sensor, described time difference method ultrasonic sensor and Doppler method ultrasonic sensor link to each other with described single-chip microcomputer by described control switching circuit, described metering circuit links to each other with described single-chip microcomputer with described control switching circuit respectively, and described fluid level transmitter links to each other with described single-chip microcomputer.
2. combined ultrasound wave multichannel flow transmitter according to claim 1, it is characterized in that: described time difference method ultrasonic sensor is installed on the outside of measured pipeline.
3. combined ultrasound wave multichannel flow transmitter according to claim 1, it is characterized in that: described Doppler method ultrasonic sensor is installed on the outside of measured pipeline.
4. combined ultrasound wave multichannel flow transmitter according to claim 2 is characterized in that: described time difference method ultrasonic sensor adopts cylinder design, and the outside is with the base with cylindrical hole.
5. combined ultrasound wave multichannel flow transmitter according to claim 3 is characterized in that: described Doppler method ultrasonic sensor adopts cylinder design, and the outside is with the base with cylindrical hole.
CN 201320132235 2013-03-22 2013-03-22 Combined type ultrasonic multichannel flow transmitter Expired - Fee Related CN203132616U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320132235 CN203132616U (en) 2013-03-22 2013-03-22 Combined type ultrasonic multichannel flow transmitter

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Application Number Priority Date Filing Date Title
CN 201320132235 CN203132616U (en) 2013-03-22 2013-03-22 Combined type ultrasonic multichannel flow transmitter

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CN203132616U true CN203132616U (en) 2013-08-14

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737916A (en) * 2014-12-08 2016-07-06 通用电气公司 Ultrasonic flow meter system and method
CN106679744A (en) * 2016-10-31 2017-05-17 南京南瑞集团公司 Ultrasonic flow measurement method based on time-difference method and Doppler method
CN107328447A (en) * 2017-07-24 2017-11-07 中国计量大学 Well head gas-liquid biphase flowmeter amount method and device
CN108533246A (en) * 2017-03-02 2018-09-14 通用电气公司 Ultrasonic sensor and method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105737916A (en) * 2014-12-08 2016-07-06 通用电气公司 Ultrasonic flow meter system and method
CN105737916B (en) * 2014-12-08 2019-06-18 通用电气公司 Ultrasonic fluid measuring system and method
US10823596B2 (en) 2014-12-08 2020-11-03 Baker Hughes Oilfield Operations Llc Ultrasonic flow meter system and method for measuring flow rate
CN106679744A (en) * 2016-10-31 2017-05-17 南京南瑞集团公司 Ultrasonic flow measurement method based on time-difference method and Doppler method
CN108533246A (en) * 2017-03-02 2018-09-14 通用电气公司 Ultrasonic sensor and method
CN107328447A (en) * 2017-07-24 2017-11-07 中国计量大学 Well head gas-liquid biphase flowmeter amount method and device

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Granted publication date: 20130814