CN201181224Y - Bypass type pipeline flowmeter - Google Patents

Bypass type pipeline flowmeter Download PDF

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Publication number
CN201181224Y
CN201181224Y CNU2008200350908U CN200820035090U CN201181224Y CN 201181224 Y CN201181224 Y CN 201181224Y CN U2008200350908 U CNU2008200350908 U CN U2008200350908U CN 200820035090 U CN200820035090 U CN 200820035090U CN 201181224 Y CN201181224 Y CN 201181224Y
Authority
CN
China
Prior art keywords
pipeline
flowmeter
differential pressure
flow rate
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200350908U
Other languages
Chinese (zh)
Inventor
郭楚文
王利军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CNU2008200350908U priority Critical patent/CN201181224Y/en
Application granted granted Critical
Publication of CN201181224Y publication Critical patent/CN201181224Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A bypass pipeline flowmeter particularly suits flow rate measurement of large-scale pipelines. A bypass pipeline is connected with a pipeline to be measured in parallel; a pressure differential flowmeter is arranged on the bypass pipeline; and a signal collecting and processing device is arranged on the pressure differential flowmeter. By measuring the flow rate of the bypass pipeline in different flow states, the flowmeter can calculate the flow rate of the pipeline to be measured without directly measuring the flow rate in the large-scale pipeline in real time, thereby overcoming the problem of poor accuracy existing in flow rate measurement of the large-diameter pipeline. The bypass pipeline flowmeter has the advantages of simple structure, convenient measurement, reliable performance, accurate measurement result and wide practicality.

Description

By-pass type pipeline flowmeter
Technical field
The utility model relates to the instrument and meter of measuring the pipeline fluid flow, specifically, is a kind of by-pass type pipeline flowmeter of measuring the pipeline fluid flow.
Background technology
At present, the flow measurement of large-scale pipeline is to adopt the fluid-velocity survey method substantially, i.e. the speed of limited point on certain section of measurement line is by calculating the flow of this section.Because the unevenness of velocity flow profile causes measurement result not accurate enough on the pipeline.In addition, the flow measurement difficulty of big caliber pipeline is also bigger.
The utility model content
The purpose of this utility model is the problem that exists at prior art, provides a kind of simple in structure, and measurement result is accurate, the bypass type flowmeter that can measure large-scale piping flow.
By-pass type pipeline flowmeter of the present utility model, a by-pass pipe road in parallel on pipeline to be measured, bypass line is provided with differential pressure flowmeter, and differential pressure flowmeter is provided with signal acquisition and processing apparatus.
Described signal acquisition and processing apparatus is made of differential pressure transmitter and flow integrator, and differential pressure transmitter is connected with differential pressure flowmeter on being connected bypass line, and flow integrator links to each other with differential pressure transmitter.
The utility model is a by-pass pipe road in parallel on pipeline to be measured, by the differential pressure flowmeter that is provided with on the bypass line, measures the flow of bypass line under the different flow states, can converse the flow in the pipeline to be measured in view of the above in real time.Owing to needn't directly measure the flow in the large-scale pipeline, overcome the problem that large-scale piping flow is measured the poor accuracy that exists, be specially adapted to the flow measurement of large-scale pipeline.It is simple in structure, measurement is convenient, dependable performance, measurement result accurately, have a practicality widely.
Description of drawings
Accompanying drawing is the utility model structural front view.
Among the figure: pipeline 1 to be measured, bypass line 2, differential pressure flowmeter 3, differential pressure transmitter 4, flow integrator 5.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in the accompanying drawing, on one section that treats measurement of discharge straight large-scale pipeline, a diameter in parallel is about the bypass line 2 of 100mm on the pipeline 1 promptly to be measured, and the diameter of bypass line 2 is generally 1/10th of pipeline diameter to be measured.One differential pressure flowmeter 3 is housed on bypass line 2, can measures inflow-rate of water turbine in the bypass line 2 by differential pressure flowmeter 3.Differential pressure transmitter 4 is housed on the differential pressure flowmeter 3, be connected with flow integrator 5 on differential pressure transmitter 4 signal output parts, the pressure difference signal of differential pressure flowmeter 3 is by differential pressure transmitter 4, send into flow integrator 5, obtain the inflow-rate of water turbine in the bypass line 2, can converse the flow in the pipeline 1 to be measured thus.

Claims (2)

1. a by-pass type pipeline flowmeter is characterized in that; Go up a by-pass pipe road (2) in parallel at pipeline to be measured (1), bypass line (2) is provided with differential pressure flowmeter (3), and differential pressure flowmeter (3) is provided with signal acquisition and processing apparatus.
2. by-pass type pipeline flowmeter according to claim 1 is characterized in that; Described signal acquisition and processing apparatus is made of differential pressure transmitter (4) and flow integrator (5), and differential pressure transmitter (4) is connected with differential pressure flowmeter (3) on being connected bypass line (2), and flow integrator (5) links to each other with differential pressure transmitter (4).
CNU2008200350908U 2008-04-09 2008-04-09 Bypass type pipeline flowmeter Expired - Fee Related CN201181224Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200350908U CN201181224Y (en) 2008-04-09 2008-04-09 Bypass type pipeline flowmeter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200350908U CN201181224Y (en) 2008-04-09 2008-04-09 Bypass type pipeline flowmeter

Publications (1)

Publication Number Publication Date
CN201181224Y true CN201181224Y (en) 2009-01-14

Family

ID=40250723

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200350908U Expired - Fee Related CN201181224Y (en) 2008-04-09 2008-04-09 Bypass type pipeline flowmeter

Country Status (1)

Country Link
CN (1) CN201181224Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102768049A (en) * 2012-07-06 2012-11-07 中国航空工业集团公司西安飞机设计研究所 Intelligent differential pressure type flow rate sensing device and design method of intelligent differential pressure type flow rate sensing device
CN103185656A (en) * 2012-01-02 2013-07-03 恩格尔奥地利有限公司 Method used for monitoring temperature control device of dies of injection molding machine or die-casting machine
US20140090481A1 (en) * 2012-10-01 2014-04-03 National Grid USA Service Company, Inc. Gas flow test apparatus and method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103185656A (en) * 2012-01-02 2013-07-03 恩格尔奥地利有限公司 Method used for monitoring temperature control device of dies of injection molding machine or die-casting machine
CN102768049A (en) * 2012-07-06 2012-11-07 中国航空工业集团公司西安飞机设计研究所 Intelligent differential pressure type flow rate sensing device and design method of intelligent differential pressure type flow rate sensing device
US20140090481A1 (en) * 2012-10-01 2014-04-03 National Grid USA Service Company, Inc. Gas flow test apparatus and method
US9714852B2 (en) * 2012-10-01 2017-07-25 Ulc Robotics, Inc. Gas flow test apparatus and method

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090114

Termination date: 20110409