CN104165664B - Pitot bar integrated mass flow meter - Google Patents

Pitot bar integrated mass flow meter Download PDF

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Publication number
CN104165664B
CN104165664B CN201410414868.6A CN201410414868A CN104165664B CN 104165664 B CN104165664 B CN 104165664B CN 201410414868 A CN201410414868 A CN 201410414868A CN 104165664 B CN104165664 B CN 104165664B
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China
Prior art keywords
pipe
flow
pipeline
installing base
pitot
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CN201410414868.6A
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Chinese (zh)
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CN104165664A (en
Inventor
王忠辉
孙丽民
齐丽萍
唐力壮
王超
张海涛
李环宇
柳永强
王壑
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.)
Liaoning pitotbar Polytron Technologies Inc.
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LIAONING PITOTBAR TECHNOLOGIES Co Ltd
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Abstract

The invention discloses a kind of Pitot bar integrated mass flow meter, including Pitot bar sensor, differential pressure transmitter and flow integrator, the Pitot bar sensor has pressure head, connecting pipe and Pipe installing base, the connecting pipe passes through Pipe installing base, annulus is formed between the connecting pipe and Pipe installing base, also include the densitometer of measurement fluid-mixing density, the input of densitometer is connected by probe tube with the Pipe installing base, and its signal output part is connected with the signal input part of the flow integrator;Also include that drainage tube in pipeline can be extend into, the drainage tube passes through the Pipe installing base, be connected with temperature transmitter and pressure transmitter on drainage tube, the signal output part of temperature transmitter and pressure transmitter is connected with the signal input part of the flow integrator.The present invention can accurately measure the mass flow of fluid-mixing in pipeline.

Description

Pitot bar integrated mass flow meter
Technical field
The present invention relates to a kind of Pitot bar mass flowmenter for measuring liquid mass flow in pipeline, more particularly, to one kind The Pitot bar integrated mass flow meter of fluid-mixing mass flow in measurement pipeline.
Background technology
Mainly include Pitot in the Pitot bar mass flowmenter structure that liquid mass flow is used in measurement pipeline at present Bar flow sensor, differential pressure transmitter and flow integrator, bi toba flow sensor have connecting pipe and pressure head, connecting pipe Including ram-air pipe and static tube, the top of pressure head has pitot hole and baroport, and the hypomere of pressure head is cylindricality joint, described Pitot hole is connected by total head passage with the ram-air pipe, and baroport is connected by static pressure passage with the static tube, described complete Pressure pipe and static tube are connected with the input of the differential pressure transmitter, the signal output part of differential pressure transmitter and the flow The signal input part of integrating instrument is connected, and the Pitot bar mass flowmenter of said structure is only applicable to only a kind of stream in measurement pipeline The mass flow of fluids within pipes when body and fluid are in normal temperature and pressure state, the Pitot bar mass flowmenter of said structure exists When using, bi toba flow sensor is perpendicularly inserted in pipeline from the side wall of pipeline, allows the central point of pitot hole and baroport Line on the axis of pipeline, pitot hole against fluid direction of flow, baroport against fluid go flow direction, fluid pipe In road flow when, total head interface and static pressure interface in connecting pipe upper end distinguish the fluid flowed in output channel total head and Static pressure, with total head and static pressure that fluid is flowed in pipeline, the stream of fluids within pipes can be calculated by fluid mechanics principle Amount, fluids within pipes may finally be calculated further according to the density at normal temperatures and pressures of the fluid in pipeline in flow integrator Mass flow and on integrating instrument show.But it is various fluid-mixings and in non-normal temperature and pressure shape when what is flowed in pipeline The Pitot bar mass flowmenter of said structure then cannot accurately measure the mass flow of fluid-mixing in pipeline during state.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind and need not separately open up measurement mounting hole in measured pipeline, so that The Pitot bar integrated mass flow meter for being easily installed and dismantling.
In order to solve the above technical problems, Pitot bar integrated mass flow meter of the present invention, including Pitot bar sensor, differential pressure Transmitter and flow integrator, the Pitot bar sensor have pressure head, connecting pipe and Pipe installing base, the connecting pipe Through Pipe installing base, annulus is formed between the connecting pipe and Pipe installing base, also including measurement mixed flow The densitometer of volume density, the input of densitometer is connected by probe tube with the Pipe installing base, its signal output part Signal input part with the flow integrator is connected;Also include the drainage tube that can be extend into pipeline, the drainage tube passes through institute Pipe installing base is stated, the letter of temperature transmitter and pressure transmitter, temperature transmitter and pressure transmitter is connected with drainage tube Number output end is connected with the signal input part of the flow integrator.
Need first to open up circle on duct wall using the Pitot bar integrated mass flow meter of said structure, when installing and using Shape mounting hole, the radial dimension of mounting hole be larger than bi toba flow sensor connecting pipe and drainage tube lateral dimension it With, bi toba flow sensor is mounted on pipeline by Pipe installing base, connecting pipe and drainage tube is extend into pipeline, Annulus is formed between the connecting pipe and Pipe installing base in due to the present invention, it is also close including measurement fluid-mixing The densitometer of degree, the input of densitometer is connected by probe tube with the Pipe installing base, its signal output part and institute The signal input part for stating flow integrator is connected, can be by connecting pipe and pipeline using fluid-mixing in above-mentioned technical characteristic pipeline The annulus installed between base enters into probe tube, and then the densitometer can be measured that the normal of fluid-mixing in pipeline Measurement result is simultaneously input to the flow integrator by density under normal temperature and pressure;Again due to also including that drawing in pipeline can be extend into Flow tube, the drainage tube passes through the Pipe installing base, and temperature transmitter and pressure transmitter, temperature pick-up are connected with drainage tube The signal output part of device and pressure transmitter is connected with the signal input part of the flow integrator, after above-mentioned technical characteristic It is measurable go out pipeline in temperature interflow body accurate temperature and pressure, and measurement structure is input to flow integrator, it is final to combine Density in pipeline under the flow of fluid-mixing, fluid-mixing normal temperature and pressure, and using the actual temperature and pressure in pipeline as Compensation, can calculate the mass flow of fluid-mixing in pipeline in flow integrator.In sum, Pitot bar of the present invention is integrally Changing mass flowmenter can accurately measure the mass flow of fluid-mixing in pipeline.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 be Pitot bar integrated mass flow meter of the present invention be arranged on pipeline on when office's cross section structure diagram.
Fig. 2 is mplifying structure schematic diagram at the I of Fig. 1.
Fig. 3 is mplifying structure schematic diagram at the II of Fig. 1.
Specific embodiment
Referring to Fig. 1-Fig. 3, the invention discloses a kind of Pitot bar integrated mass flow meter, Fig. 1 shows peace of the present invention Office's cross section structure diagram when on pipeline, needs to open up a circular port 20, circular port on pipeline when installing and using 20 radial dimension is larger than the connecting pipe 5 of bi toba flow sensor and the lateral dimension sum of drainage tube 8, so can be with Ensure that the fluid-mixing in pipeline is smoothly entered into Pipe installing base.Structure of the invention mainly includes Pitot bar sensor 1st, differential pressure transmitter 2 and flow integrator 3, the Pitot bar sensor 1 have pressure first 4, connecting pipe 5 and Pipe installing base 6, the connecting pipe 5 passes through Pipe installing base 6, and annulus 7 is formed between the connecting pipe 5 and Pipe installing base 6, Also include the densitometer 11 of measurement fluid-mixing density, the input of densitometer 11 passes through probe tube 12 and the Pipe installing pipe Seat 6 is connected, and its signal output part is connected with the signal input part of the flow integrator 3;Also include extending into pipeline Drainage tube 8, the drainage tube 8 pass through the Pipe installing base 6, temperature transmitter 9 and pressure transmitter are connected with drainage tube 8 10, the signal output part of temperature transmitter 9 and pressure transmitter 10 is connected with the signal input part of the flow integrator 3.

Claims (1)

1. a kind of Pitot bar integrated mass flow meter, including Pitot bar sensor (1), differential pressure transmitter (2) and flow accumulation Instrument (3), the Pitot bar sensor (1) is with pressure head (4), connecting pipe (5) and Pipe installing base (6), the connecting pipe (5) through Pipe installing base (6), also including the drainage tube (8) that can be extend into pipeline, the drainage tube (8) is through the pipe Base (6) is installed in road, and temperature transmitter (9) and pressure transmitter (10), temperature transmitter (9) and pressure are connected with drainage tube (8) The signal output part of power transmitter (10) is connected with the signal input part of the flow integrator (3);Also include measurement mixed flow The densitometer (11) of volume density, it is characterised in that:Annulus is formed between the connecting pipe (5) and Pipe installing base (6) Gap (7), the input of densitometer (11) is connected by probe tube (12) with the Pipe installing base (6), its signal output End is connected with the signal input part of the flow integrator (3).
CN201410414868.6A 2014-08-22 2014-08-22 Pitot bar integrated mass flow meter Active CN104165664B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410414868.6A CN104165664B (en) 2014-08-22 2014-08-22 Pitot bar integrated mass flow meter

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Application Number Priority Date Filing Date Title
CN201410414868.6A CN104165664B (en) 2014-08-22 2014-08-22 Pitot bar integrated mass flow meter

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CN104165664A CN104165664A (en) 2014-11-26
CN104165664B true CN104165664B (en) 2017-06-20

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107976222A (en) * 2016-10-21 2018-05-01 中石化洛阳工程有限公司 A kind of Pitot tube integrated gas mass flow measurement methods
CN110595557B (en) * 2019-09-21 2020-08-28 河南英高能源科技有限公司 Large-flow compensation algorithm
CN111595392A (en) * 2020-06-23 2020-08-28 郑州大学 Novel flow velocity and water level measuring device

Citations (11)

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US5048323A (en) * 1987-08-12 1991-09-17 Schlumberger Indusrtries Limited Fluid metering
US5076103A (en) * 1990-08-31 1991-12-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Water cooled static pressure probe
US5969266A (en) * 1996-06-04 1999-10-19 Dieterich Technology Holding Corp. Flow meter pitot tube with temperature sensor
CN1240510A (en) * 1996-06-04 2000-01-05 迪特里奇技术控股公司 Flow meter pitot tube with temp. sensor
JP4130644B2 (en) * 2003-05-20 2008-08-06 日本アプライドフロー株式会社 Flow measuring device
CN101236098A (en) * 2008-03-11 2008-08-06 郑侠 Rotating gas flowmeter
CN201673166U (en) * 2010-04-30 2010-12-15 厦门格瑞斯特环保科技有限公司 Pitot pipe filtering speed measuring device
KR101057386B1 (en) * 2011-06-29 2011-08-17 주식회사 마르센 Averaging pitot tube for very low temperature
CN202853656U (en) * 2012-09-26 2013-04-03 天津通广集团数字通信有限公司 Temperature, pressure and flow velocity integrated sampling device based gas flue
CN203672420U (en) * 2013-03-15 2014-06-25 罗斯蒙特公司 Flow meter
CN204007745U (en) * 2014-08-22 2014-12-10 辽宁毕托巴科技有限公司 Pitot bar integrated mass flow meter

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US7490510B2 (en) * 2005-10-24 2009-02-17 Ametek, Inc. Multi-function air data sensor

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5048323A (en) * 1987-08-12 1991-09-17 Schlumberger Indusrtries Limited Fluid metering
US5076103A (en) * 1990-08-31 1991-12-31 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Water cooled static pressure probe
US5969266A (en) * 1996-06-04 1999-10-19 Dieterich Technology Holding Corp. Flow meter pitot tube with temperature sensor
CN1240510A (en) * 1996-06-04 2000-01-05 迪特里奇技术控股公司 Flow meter pitot tube with temp. sensor
JP4130644B2 (en) * 2003-05-20 2008-08-06 日本アプライドフロー株式会社 Flow measuring device
CN101236098A (en) * 2008-03-11 2008-08-06 郑侠 Rotating gas flowmeter
CN201673166U (en) * 2010-04-30 2010-12-15 厦门格瑞斯特环保科技有限公司 Pitot pipe filtering speed measuring device
KR101057386B1 (en) * 2011-06-29 2011-08-17 주식회사 마르센 Averaging pitot tube for very low temperature
CN202853656U (en) * 2012-09-26 2013-04-03 天津通广集团数字通信有限公司 Temperature, pressure and flow velocity integrated sampling device based gas flue
CN203672420U (en) * 2013-03-15 2014-06-25 罗斯蒙特公司 Flow meter
CN204007745U (en) * 2014-08-22 2014-12-10 辽宁毕托巴科技有限公司 Pitot bar integrated mass flow meter

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Address after: 112600 Leng Dong Street, Tieling Economic Development Zone, Tieling, Liaoning Province, No. 265

Patentee after: Liaoning pitotbar Polytron Technologies Inc

Address before: 112600 Tieling City, Liaoning province Tieling Economic Development Zone Branch of Liaoning Maoshan pitotbar Technology Co. Ltd.

Patentee before: Liaoning Pitotbar Technologies Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20180606

Address after: 201500 room 3356, 65 lane, 65 Ring Road, Fengjing town, Jinshan District, Shanghai.

Patentee after: Right: Shanghai environmental protection science and technology limited company

Address before: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning

Patentee before: Liaoning pitotbar Polytron Technologies Inc

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210107

Address after: 112600 No. 265, Ling Dong Street, Tieling Economic Development Zone, Tieling, Liaoning

Patentee after: Liaoning pitotbar Polytron Technologies Inc.

Address before: 201500 room 3356, 65 lane, 65 Ring Road, Fengjing town, Jinshan District, Shanghai.

Patentee before: SHANGHAI QUANYOU ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd.