CN108548574A - A kind of built-in Venturi meter that achievable bidirectional traffics measure - Google Patents

A kind of built-in Venturi meter that achievable bidirectional traffics measure Download PDF

Info

Publication number
CN108548574A
CN108548574A CN201810306468.1A CN201810306468A CN108548574A CN 108548574 A CN108548574 A CN 108548574A CN 201810306468 A CN201810306468 A CN 201810306468A CN 108548574 A CN108548574 A CN 108548574A
Authority
CN
China
Prior art keywords
sphere
pipeline
negative pressure
driving
measure
Prior art date
Application number
CN201810306468.1A
Other languages
Chinese (zh)
Other versions
CN108548574B (en
Inventor
邹莲
庞程
吴佩君
庞飞
顾文涛
Original Assignee
江阴市节流装置厂有限公司
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 江阴市节流装置厂有限公司 filed Critical 江阴市节流装置厂有限公司
Priority to CN201810306468.1A priority Critical patent/CN108548574B/en
Publication of CN108548574A publication Critical patent/CN108548574A/en
Application granted granted Critical
Publication of CN108548574B publication Critical patent/CN108548574B/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects
    • G01F1/34Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/38Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow
    • G01F1/05Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects
    • G01F1/34Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/36Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
    • G01F1/40Details or construction of the flow constriction devices
    • G01F1/44Venturi tubes

Abstract

The invention discloses a kind of built-in Venturi meters that achievable bidirectional traffics measure, including measure pipeline, sphere, Venturi tube, driving device;Through sphere, the axis of Venturi tube is overlapped with ball centre and is overlapped with the axis for measuring pipeline Venturi tube;Sphere mutually passes through inside measurement pipeline with the tangent hinged or sphere of measurement inner wall of the pipe and measurement pipeline external hinged;Venturi tube trunnion portion is provided with negative pressure pressure tappings, detection of negative pressure corresponding with negative pressure pressure tappings position hole is provided on sphere, it is provided with negative pressure pressure pipe corresponding with detection of negative pressure hole site on measuring pipeline or on sphere, measures and is additionally provided with the first positive pressure pressure pipe, the second positive pressure pressure pipe on pipeline;Driving device interconnecting piece is provided on sphere, driving device is connect with driving device interconnecting piece.Flow measurement when same pipeline reverse fluid flow may be implemented in the present apparatus, and manufacture craft is simple, reduces production cost.

Description

A kind of built-in Venturi meter that achievable bidirectional traffics measure

Technical field

The present invention relates to a kind of Venturi meters, specifically design a kind of built-in venturi that achievable bidirectional traffics measure Flowmeter.

Background technology

Flowmeter is one of most important instrument in commercial measurement.With the development of industry, to the accuracy of flow measurement Higher and higher with area requirement, in order to adapt to multiple use, various types of flowmeters are come out one after another, be widely used in oil, The industries such as natural gas, petrochemical industry, water process, food and drink, pharmacy, the energy, metallurgy, paper pulp papermaking and construction material.

Fluid is in flow process, and under certain conditions, the kinetic energy and static energy of fluid can be converted mutually, and profit The flow of fluid can be measured with this transformational relation.Venturi tube is exactly to be developed according to kinetic energy and static energy transformational relation A kind of flow measurement device of exploitation.When the throat of fluid stream flow through venturi, flow velocity increases, and static pressure reduces, and then exists Venturi tube larynx just produces pressure difference behind throat.Fluid flow is bigger, and the pressure difference of generation is bigger, can be weighed in this way according to pressure difference The size of flow.

Existing Venturi meter is all unidirectional measurement, main reason is that most of flow measurement in industrial system It is measured for one-way flow.But also have many devices that bidirectional traffics is needed to measure, such as arranged outward when the work of some mechanical devices Water, when startup, need the water filling into device;Such as some fluid storage devices again, on the one hand often to external trandfer fluid, separately On the one hand internally fluid replacement is needed often again.This requires flowmeters to have the ability that bidirectional traffics measure.To measure Bidirectional traffics on same pipeline generally require two Venturi meters in parallel or in series, and such way is on the one hand Production cost is higher, and another aspect occupied space is larger.

In addition, Venturi tube is exposed in environment, the erosion of environmental pollution, such as air pollution, acid rain dirt are frequently suffered from Dye, this results in the service life of Venturi tube to reduce.

Therefore, expect a kind of accuracy height of exploitation, bidirectional traffics measuring device with long service life.Inventing type content

It is an object of the invention to overcome defect existing in the prior art, provide what a kind of achievable bidirectional traffics measured Built-in Venturi meter, the bidirectional traffics which can be directly used for monophasic fluid in pipeline are measured, can accurately be measured Two-way fluid flow, simple in structure, easy to operate, reproducible, high certainty of measurement, flowing pressure loss are small.

To achieve the above object, the technical solution of the present invention is to provide a kind of built-in texts that achievable bidirectional traffics measure Flowmeter in mound, including measure pipeline, sphere, Venturi tube, driving device;The Venturi tube is through sphere, venturi The axis of pipe is overlapped with ball centre and is overlapped with the axis for measuring pipeline;The sphere, which is located at, measures pipeline inside and measurement pipe Inner wall tangent hinged or sphere in road mutually passes through hinged with measurement pipeline external;Venturi tube trunnion portion is provided with negative pressure pressure Mouthful, detection of negative pressure corresponding with negative pressure pressure tappings position hole is provided on the sphere, on the measurement pipeline or sphere On be provided with negative pressure pressure pipe corresponding with detection of negative pressure hole site, be additionally provided with the first positive pressure pressure on the measurement pipeline Pipe, the second positive pressure pressure pipe;Driving device interconnecting piece is provided on the sphere, driving device connects with driving device interconnecting piece It connects.

Preferably, negative pressure hole and driving device interconnecting piece mounting hole, negative pressure hole and driving are provided on the measurement pipeline Device interconnecting piece mounting hole is located at the both ends for measuring pipeline cross-sectional diameter, the first positive pressure pressure pipe, the second positive pressure Pressure pipe is located at the both sides of negative pressure hole, and symmetrical with negative pressure hole;The negative pressure pressure pipe and negative pressure hole, detection of negative pressure hole or Negative pressure pressure tappings are connected;The driving device is connected across driving device interconnecting piece mounting hole with drive connection portion;It is described It measures pipe ends and is both provided with connection flange.

Preferably, it is recessed to be provided with annular for the measurement pipeline inner wall surrounding negative pressure hole and driving device interconnecting piece mounting hole Slot, annular groove are internally provided with sealing ring, and sphere is tangential on pipeline is measured at sealing ring.

Preferably, the measurement pipeline includes completely identical in structure two segment pipe, wherein being arranged on one section of measurement pipeline There is the first positive pressure pressure pipe, the second positive pressure pressure pipe is provided on another section of measurement pipeline;Measurement pipe road nozzle is mutually passed through with sphere Hinged place is provided with sealing ring, measures the pipeline other end and is provided with connection flange.

Preferably, shell is provided with outside the sphere, shell is welded to each other combination, shell with pipeline intersection area is measured It is provided with opening, the detection of negative pressure hole and driving device are located at opening portion;Shell is provided with sealing ring with sphere junction.

Preferably, the sphere is the sphere of hollow shell formula or is solid sphere.

Preferably, when the sphere is the sphere of hollow shell formula, it is provided with thickening part in the hollow shell, drives Interconnecting piece is set on thickening part.

Preferably, the inner surface of the Venturi tube for being set to ball interior is set as smooth hyperbola cambered surface, receives The curvature of draw section is more than the curvature of diffusion pipeline section.

Preferably, the driving device is set as handle or motor driving.

Preferably, the drive connection portion is set as interior triangular, interior quadrangle, interior pentagon or interior hexagon.

The advantages of the present invention are:

1,180 ° of sphere flip horizontal, i.e. Venturi tube is driven to exchange 180 ° in the horizontal direction, realize by driving device Flow measurement when reverse fluid flow, it is easy to operate;

2, Venturi tube inner surface is smooth hyperbola cambered surface, and the curvature of collapsible tube is more than the curvature of diffuser, drop The low pressure loss of fluid;

3, it measures pipeline two-port and is both provided with connection flange, it is convenient to be connect with fluid line;

4, Venturi tube ontology is installed on the ball interior of hollow shell formula, avoids external environmental corrosion, extends Service life;

5, sphere is located inside measurement pipeline and measurement inner wall of the pipe is tangent hinged, measures pipeline and is integrated, produces Product manufacture craft is simple, reduces production cost.

Description of the drawings

Fig. 1 is that the sphere of hollow shell formula is inscribed within the overall structure diagram for measuring pipeline.

Fig. 2 is that the sphere of hollow shell formula is inscribed within the radial cross-section for measuring pipeline.

Fig. 3 is that solid sphere is inscribed within the overall structure diagram for measuring pipeline.

Fig. 4 is that solid sphere is inscribed within the radial cross-section for measuring pipeline.

Fig. 5 is the sphere and the circumscribed overall structure diagram of measurement pipe road nozzle of hollow shell formula.

Fig. 6 is solid sphere and the circumscribed overall structure diagram of measurement pipe road nozzle.

Fig. 7 is the external solid sphere with shell and the circumscribed overall structure diagram of measurement pipe road nozzle.

Reference sign:

1, pipeline is measured;2, sphere;3, Venturi tube;4, driving device;5, negative pressure pressure tappings;6, detection of negative pressure hole;7、 Negative pressure pressure pipe;8, negative pressure hole;9, the first positive pressure pressure pipe;10, the second positive pressure pressure pipe;11, driving device interconnecting piece is installed Hole;12, sealing ring;13, thickening part;14, driving device interconnecting piece;15, connection flange;16, shell;17, it is open.

Specific implementation mode

With reference to the accompanying drawings and examples, the specific implementation mode of the present invention is further described.Following embodiment is only For clearly illustrating technical scheme of the present invention, and not intended to limit the protection scope of the present invention.

As shown in figures 1 and 3, a kind of built-in Venturi meter that achievable bidirectional traffics measure, including measure pipeline 1, sphere 2, Venturi tube 3, driving device 4;The Venturi tube 3 through sphere 2, the axis of Venturi tube 3 in sphere 2 The heart is overlapped and is overlapped with the axis for measuring pipeline 1;The sphere 2, which is located at, to be measured 1 inside of pipeline and measures the tangent hinge of 1 inner wall of pipeline It connects;3 trunnion portion of the Venturi tube is provided with negative pressure pressure tappings 5, is provided on the sphere 2 and 5 position phase of negative pressure pressure tappings Corresponding detection of negative pressure hole 6 is provided with negative pressure pressure pipe corresponding with 6 position of detection of negative pressure hole on the measurement pipeline 1 7, the first positive pressure pressure pipe 9, the second positive pressure pressure pipe 10 are additionally provided on the measurement pipeline 1;Drive is provided on the sphere 2 Dynamic device interconnecting piece 14, driving device 4 is connect with driving device interconnecting piece 14.It is provided with 8 He of negative pressure hole on the measurement pipeline 1 Driving device interconnecting piece mounting hole 11, negative pressure hole 8 and driving device interconnecting piece mounting hole 11, which are located at, measures 1 cross section of pipeline The both ends of diameter, the first positive pressure pressure pipe 9, the second positive pressure pressure pipe 10 are located at the both sides of negative pressure hole 8, and and negative pressure Hole 8 is symmetrical;The negative pressure pressure pipe 7 is connected with negative pressure hole 8, detection of negative pressure hole 6 or negative pressure pressure tappings 5;The driving device 4 It is connected with driving device interconnecting piece 14 across driving device interconnecting piece mounting hole 11;1 both ends of measurement pipeline are both provided with Connection flange 15.

As shown in Figure 2 and Figure 4, the 1 inner wall surrounding negative pressure hole 8 of measurement pipeline and driving device interconnecting piece mounting hole 11 are set It is equipped with annular groove, annular groove is internally provided with sealing ring 12, and sphere 2 is tangential on pipeline 1 is measured at sealing ring 12.This Structure make sphere 2 and measure 1 inner wall of pipeline between not will produce fluid leakage, fluid all flows through inside Venturi tube 3, i.e., just Pressure pressure pipe 9 or 10 and negative pressure pressure pipe 7 get maximum differential pressure value, ensure that the accuracy of measurement result.

As depicted in figs. 1 and 2, it when the sphere 2 is the sphere of hollow shell formula, is provided with and adds in the hollow shell Thick portion 13, driving device interconnecting piece 14 are set on thickening part 13.This structure makes inside the sphere 2 of hollow shell formula Driving device interconnecting piece 14 and the connection of driving device 4 it is more secured.

As shown in Figure 5 and Figure 6, a kind of built-in Venturi meter that achievable bidirectional traffics measure, including measure pipeline 1, sphere 2, Venturi tube 3, driving device 4;The Venturi tube 3 through sphere 2, the axis of Venturi tube 3 in sphere 2 The heart is overlapped and is overlapped with the axis for measuring pipeline 1;The sphere 2 mutually passes through hinged with 1 outside of measurement pipeline;The Venturi tube 3 Trunnion portion is provided with negative pressure pressure tappings 5, and detection of negative pressure corresponding with 5 position of negative pressure pressure tappings hole is provided on the sphere 2 6, negative pressure pressure pipe 7 corresponding with 6 position of detection of negative pressure hole is provided on the measurement pipeline 1, on the measurement pipeline 1 It is additionally provided with the first positive pressure pressure pipe 9, the second positive pressure pressure pipe 10;It is provided with driving device interconnecting piece 14 on the sphere 2, drives Dynamic device 4 is connect with driving device interconnecting piece 14.The measurement pipeline 1 includes completely identical in structure two segment pipe, wherein one It is provided with the first positive pressure pressure pipe 9 on section measurement pipeline, the second positive pressure pressure pipe 10 is provided on another section of measurement pipeline;It measures 1 nozzle of pipeline passes through hinged place with 2 phase of sphere and is provided with sealing ring 12, measures the pipeline other end and is provided with connection flange 15.

As shown in fig. 7, being provided with shell 16 outside the sphere 2, shell 16 is welded to each other with 1 intersection area of pipeline is measured In conjunction with shell 16 is provided with opening 17, and the detection of negative pressure hole 6 and driving device 4 are located at 17 parts of opening;Shell 16 and sphere 2 junctions are provided with sealing ring 12.

Workflow is:As shown in Figure 1, fluid flows into Venturi tube 3 by 1 entrance of measurement pipeline, then by Venturi tube 3 It exits into and measures the outflow of 1 outlet section of pipeline, wherein the first positive pressure pressure pipe 9 obtains positive pressure value X1, negative pressure pressure pipe 7 obtains negative Pressure value X2 goes out fluid flow by X1 and X2 mathematic interpolations;When measuring same pipeline fluid reverse flow, device of rotation driving 4 180 ° of 2 flip horizontal of sphere, i.e. 180 ° of Venturi tube flip horizontal, fluid is driven to be flowed by 1 other side entrance of measurement pipeline Venturi tube 3, then exited by Venturi tube 3 and measure the outflow of 1 outlet section of pipeline, wherein the first positive pressure pressure pipe 10 obtains just Pressure value Y1, negative pressure pressure pipe 7 obtain negative pressure value Y2, go out negative direction fluid flow by Y1 and Y2 mathematic interpolations.

Preferred mode is to drive sphere flip horizontal by driving device in the present embodiment

180 °, i.e. Venturi tube exchanges 180 ° in the horizontal direction, flow measurement when realizing reverse fluid flow, operation side Just.

Preferred mode is that the inner surface for the Venturi tube for being set to ball interior is set as smooth pair in the present embodiment Curve cambered surface, the curvature of collapsible tube are more than the curvature of diffuser.It is verified through Hydrodynamics Theory analysis and a large amount of wind tunnel test, The structure can effectively reduce fluid pressure loss.

It is handle or motor driving that preferred mode, which is driving device, in the present embodiment, can be selected according to specific implementation scene Select type of drive.For example, when electric drive does not allow, it can use handle rotating sphere that Venturi tube is driven to exchange direction.

Preferred mode is that the drive connection portion on sphere is set as interior triangular, interior quadrangle, interior five in the present embodiment Angular or interior hexagon, or convex triangle, convex quadrangle, convex pentagon or convex hexagon.These be can with it is general The matched shape of logical spanner, is convenient for the flexible selection of handle.

Preferred mode is that literary mound standpipe is placed in ball interior in the present embodiment, and avoiding toxic in external environment has The erosion of the pollution and acid rain of evil gas, prolongs the service life.

Preferred mode is that sphere is located inside measurement pipeline and measurement inner wall of the pipe is tangent hinged in the present embodiment, is measured Pipeline is integrated, and production is simple for process, reduces production cost.

Preferred mode is the first positive pressure pressure pipe in the present embodiment, the second positive pressure pressure pipe is located at the two of negative pressure hole Side, and it is symmetrical with negative pressure hole.This guarantees completely the same, the i.e. measurement results one of measuring condition when bidirectional measurement fluid flow It causes.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvements and modifications can also be made, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (10)

1. a kind of built-in Venturi meter that achievable bidirectional traffics measure, it is characterised in that:Including measure pipeline, sphere, Venturi tube, driving device;The Venturi tube through sphere, the axis of Venturi tube overlapped with ball centre and with measurement The axis of pipeline overlaps;The sphere, which is located at, to be measured inside pipeline and measures the tangent hinged or sphere of inner wall of the pipe and measure pipeline Outside is mutually passed through hinged;Venturi tube trunnion portion is provided with negative pressure pressure tappings, is provided on the sphere and negative pressure pressure tappings The corresponding detection of negative pressure hole in position is provided with corresponding with detection of negative pressure hole site on the measurement pipeline or on sphere Negative pressure pressure pipe is additionally provided with the first positive pressure pressure pipe, the second positive pressure pressure pipe on the measurement pipeline;It is arranged on the sphere There are driving device interconnecting piece, driving device to be connect with driving device interconnecting piece.
2. the built-in Venturi meter that a kind of achievable bidirectional traffics as described in claim 1 measure, it is characterised in that:Institute It states to measure and is provided with negative pressure hole and driving device interconnecting piece mounting hole on pipeline, negative pressure hole and driving device interconnecting piece mounting hole point The both ends of pipeline cross-sectional diameter Wei Yu not be measured, the first positive pressure pressure pipe, the second positive pressure pressure pipe are located at negative pressure The both sides in hole, and it is symmetrical with negative pressure hole;The negative pressure pressure pipe is connected with negative pressure hole, detection of negative pressure hole or negative pressure pressure tappings; The driving device is connected across driving device interconnecting piece mounting hole with driving device interconnecting piece;The measurement pipe ends are equal It is provided with connection flange.
3. the built-in Venturi meter that a kind of achievable bidirectional traffics as claimed in claim 2 measure, it is characterised in that:Institute It states measurement pipeline inner wall surrounding negative pressure hole and driving device interconnecting piece mounting hole is provided with annular groove, be arranged inside annular groove There are sealing ring, sphere to be tangential at sealing ring with pipeline is measured.
4. the built-in Venturi meter that a kind of achievable bidirectional traffics as described in claim 1 measure, it is characterised in that:Institute It includes completely identical in structure two segment pipe to state and measure pipeline, wherein the first positive pressure pressure pipe is provided on one section of measurement pipeline, The second positive pressure pressure pipe is provided on another section of measurement pipeline;Measurement pipe road nozzle mutually passes through hinged place with sphere and is provided with sealing Circle measures the pipeline other end and is provided with connection flange.
5. the built-in Venturi meter that a kind of achievable bidirectional traffics as claimed in claim 4 measure, it is characterised in that:Institute It states and is provided with shell outside sphere, shell is welded to each other combination with pipeline intersection area is measured, and shell is provided with opening, described negative Pressure detection hole and driving device are located at opening portion;Shell is provided with sealing ring with sphere junction.
6. the built-in Venturi meter that a kind of achievable bidirectional traffics as described in any one of claim 1 to 5 measure, It is characterized in that:The sphere is the sphere of hollow shell formula or is solid sphere.
7. the built-in Venturi meter that a kind of achievable bidirectional traffics as claimed in claim 6 measure, it is characterised in that:Institute When stating the sphere that sphere is hollow shell formula, thickening part is provided in the hollow shell, drive connection portion is set to thickening In portion.
8. the built-in Venturi meter that a kind of achievable bidirectional traffics as claimed in claim 7 measure, it is characterised in that:Institute The inner surface for stating the Venturi tube for being set to ball interior is set as smooth hyperbola cambered surface, and the curvature for shrinking pipeline section is more than expansion The curvature of separate tube section.
9. the built-in Venturi meter that a kind of achievable bidirectional traffics as claimed in claim 8 measure, it is characterised in that:Institute It states driving device and is set as handle or motor driving.
10. the built-in Venturi meter that a kind of achievable bidirectional traffics as described in claim 1 measure, it is characterised in that: The drive connection portion is set as interior triangular, interior quadrangle, interior pentagon or interior hexagon.
CN201810306468.1A 2018-04-08 2018-04-08 A kind of built-in Venturi meter of achievable bidirectional traffics measurement CN108548574B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810306468.1A CN108548574B (en) 2018-04-08 2018-04-08 A kind of built-in Venturi meter of achievable bidirectional traffics measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810306468.1A CN108548574B (en) 2018-04-08 2018-04-08 A kind of built-in Venturi meter of achievable bidirectional traffics measurement

Publications (2)

Publication Number Publication Date
CN108548574A true CN108548574A (en) 2018-09-18
CN108548574B CN108548574B (en) 2019-12-03

Family

ID=63514101

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810306468.1A CN108548574B (en) 2018-04-08 2018-04-08 A kind of built-in Venturi meter of achievable bidirectional traffics measurement

Country Status (1)

Country Link
CN (1) CN108548574B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110736029A (en) * 2019-10-23 2020-01-31 北京助创科技有限公司 Three-proofing well head combined device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936449A1 (en) * 1998-02-12 1999-08-18 S.E.G. Mekanik Ab Impeller arrangement in a measuring device
WO2002093114A1 (en) * 2001-05-11 2002-11-21 Gary Wayne Lewis Venturi flowmeter for use in an exhaust sampling apparatus
CN102289862A (en) * 2011-08-17 2011-12-21 广州广电运通金融电子股份有限公司 gate mechanism
CN202561161U (en) * 2012-05-23 2012-11-28 浙江盾运实业有限公司 Multipurpose spherical valve
CN202865607U (en) * 2012-10-22 2013-04-10 姚明财 Dyeing machine reversing device
CN104520680A (en) * 2012-08-13 2015-04-15 克洛纳测量技术有限公司 Vortex flow measuring device
CN106441468A (en) * 2016-09-18 2017-02-22 中国核动力研究设计院 Venturi flow meter for bidirectional flow measurement and measurement method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0936449A1 (en) * 1998-02-12 1999-08-18 S.E.G. Mekanik Ab Impeller arrangement in a measuring device
WO2002093114A1 (en) * 2001-05-11 2002-11-21 Gary Wayne Lewis Venturi flowmeter for use in an exhaust sampling apparatus
CN102289862A (en) * 2011-08-17 2011-12-21 广州广电运通金融电子股份有限公司 gate mechanism
CN202561161U (en) * 2012-05-23 2012-11-28 浙江盾运实业有限公司 Multipurpose spherical valve
CN104520680A (en) * 2012-08-13 2015-04-15 克洛纳测量技术有限公司 Vortex flow measuring device
CN202865607U (en) * 2012-10-22 2013-04-10 姚明财 Dyeing machine reversing device
CN106441468A (en) * 2016-09-18 2017-02-22 中国核动力研究设计院 Venturi flow meter for bidirectional flow measurement and measurement method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘玲: "循环流化床烟气脱硫系统气固流动特性数值模拟研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110736029A (en) * 2019-10-23 2020-01-31 北京助创科技有限公司 Three-proofing well head combined device

Also Published As

Publication number Publication date
CN108548574B (en) 2019-12-03

Similar Documents

Publication Publication Date Title
Reader-Harris Orifice plates and venturi tubes
US6537018B2 (en) Rotational power transfer device
US6463810B1 (en) Method and device for bi-directional low-velocity flow measurement
US7082840B2 (en) Flanged vortex flowmeter with unitary tapered expanders
JP3165156B2 (en) Method and apparatus for characterizing a fluid flow
EP2306160A1 (en) Measuring insert and flow meter
US8056424B2 (en) Multi-channel flow sensor with extended flow range and faster response
US9726530B2 (en) Flowmeter design for large diameter pipes
RU2327919C2 (en) Ball valve with flow-meter installed in ball
Li Effects of viscosity of fluids on centrifugal pump performance and flow pattern in the impeller
EP3139137B1 (en) Fluid flow meter
DE19509858A1 (en) Flow correction for turbine type gas flow meter
US6439062B2 (en) Flow anomaly detector
CN101839736A (en) The method and system that is used for multi-path ultrasonic flow rate measurement
CN102854122B (en) Multifunctional annular oil-gas-water multiphase flow corrosion simulation test device
US3314290A (en) Shunt flow meter
CN202533355U (en) System for simulating field dynamic corrosion of acid natural gas field
CN102798511A (en) Test unit for refining test of flow field in hydraulic machine
CA2911900C (en) Throttling block for flow meter
Özahi et al. Simple methods for low speed calibration of hot-wire anemometers
CN101558315A (en) Device for measuring the total pressure of a flow and method using said device
Raju Fluid mechanics, heat transfer, and mass transfer: chemical engineering practice
CN104390786A (en) Test stand for measuring flow coefficient of small hole under rotation condition
CN102109405A (en) Vortex-induced vibration test device for stand pipe under bidirectional shear flow and bidirectional ladder shear flow
US7886616B1 (en) In-line flow meter

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant