CN209027599U - A kind of redundant flow measuring device - Google Patents

A kind of redundant flow measuring device Download PDF

Info

Publication number
CN209027599U
CN209027599U CN201822058656.5U CN201822058656U CN209027599U CN 209027599 U CN209027599 U CN 209027599U CN 201822058656 U CN201822058656 U CN 201822058656U CN 209027599 U CN209027599 U CN 209027599U
Authority
CN
China
Prior art keywords
pressure
venturi tube
formula flowmeter
measuring device
differential pressure
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.)
Active
Application number
CN201822058656.5U
Other languages
Chinese (zh)
Inventor
徐成琼
王亚婷
万晓勤
明振训
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.)
Sichuan Qinhua Technology Co Ltd
Original Assignee
Sichuan Qinhua Technology Co Ltd
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 Sichuan Qinhua Technology Co Ltd filed Critical Sichuan Qinhua Technology Co Ltd
Priority to CN201822058656.5U priority Critical patent/CN209027599U/en
Application granted granted Critical
Publication of CN209027599U publication Critical patent/CN209027599U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of redundant flow measuring devices, belong to flow measurement technology field;Including Venturi tube, bar formula flowmeter, first differential pressure transmitter, second differential pressure transmitter, flow integrator, described bar of formula flowmeter at least partly protrudes into inside from the throat upper end of Venturi tube and is fixedly connected with Venturi tube, described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the side of the throat of the Venturi tube is provided with low pressure pressure port, the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port, the high pressure pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter and the second differential pressure transmitter are connect with flow integrator;Data on flows is mutually authenticated by flow integrator in related personnel, guarantees measurement accuracy and measurement stability.

Description

A kind of redundant flow measuring device
Technical field
The utility model relates to flow measurement technology field, in particular to a kind of redundant flow measuring device.
Background technique
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 petroleum, 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 benefit 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 fluid flows through the throat of Venturi tube, 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 measure in this way according to pressure difference The size of flow.
In the prior art, there are common Venturi tubes can only carry out single flow measurement, cannot be to flow measurement As a result it is verified.
Utility model content
The purpose of this utility model is that: a kind of redundant flow measuring device is provided, solves common Venturi tube The problem of can only carrying out single flow measurement, the result of flow measurement cannot being verified.
The technical solution adopted in the utility model is as follows:
A kind of redundant flow measuring device, including Venturi tube, bar formula flowmeter, the first differential pressure transmitter, the second differential pressure Transmitter, flow integrator, described bar of formula flowmeter at least partly protrude into internal and venturi from the throat upper end of Venturi tube Pipe is fixedly connected, and described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the throat of the Venturi tube Side is provided with low pressure pressure port, and the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port, the high pressure Pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter and second poor Pressure transmitter is connect with flow integrator.
Further, the Venturi tube is using machining.
Further, the distance at described bar of formula flowmeter to the laryngeal entrance end of Venturi tube is greater than the larynx to Venturi tube The distance of portion outlet end.
Further, the coarse processing of the front surface of described bar of formula flowmeter.
Further, the throat upper surface of described bar of formula flowmeter and Venturi tube is welded.
Further, the axial direction of the low pressure pressure port and high pressure pressure port is mutually hung down with described bar of the axial of formula flowmeter Directly.
Further, control valve is provided on the pressure guiding pipe, the control valve is for controlling leading for pressure guiding pipe Logical or truncation.
In conclusion by adopting the above-described technical solution, the beneficial effects of the utility model are:
1. a kind of redundant flow measuring device of the utility model, bar formula flowmeter passes through pressure guiding pipe and the first differential pressure transmitter The data on flows of acquisition is uploaded to flow accumulation by the data on flows of the interior fluid of connection acquisition pipeline, the first differential pressure transmitter Instrument, high pressure pressure port and low pressure pressure port in Venturi tube, which are connect by pressure guiding pipe with the second differential pressure transmitter, to be acquired in pipeline The data on flows of acquisition is uploaded to flow integrator by the data on flows of fluid, the second differential pressure transmitter, and flow integrator is used for Flow rate calculation, flow compensating calculation, difference alarm etc., data on flows is mutually authenticated by flow integrator in related personnel, guarantees Measurement accuracy and measurement stability;
2. a kind of redundant flow measuring device of the utility model, Venturi tube is avoided using welding using machining Mode has an impact the pipeline of Venturi tube, to influence the precision of flow measurement;
3. a kind of redundant flow measuring device of the utility model, the laryngeal entrance end of bar formula flowmeter to Venturi tube away from From being greater than to a distance from the throat outlet end of Venturi tube, a bar formula flowmeter is obtained under higher flow velocity bigger Differential pressure improves flow measurement precision and measurement range;
4. a kind of redundant flow measuring device of the utility model carries out coarse processing by the surface to bar formula flowmeter, Fluid draw power can be reduced, improve the measurement accuracy of bar formula flowmeter when fluid is in low flow velocity;
5. the throat upper end of a kind of redundant flow measuring device of the utility model, bar formula flowmeter and Venturi tube is welded, No longer retain the mounting seat of bar formula flowmeter, and use pressure guiding pipe pressure, convenient for a bar formula flowmeter is installed to inner space Inside narrow Venturi tube;
6. a kind of redundant flow measuring device of the utility model, by being arranged low pressure pressure sky and high pressure pressure port in text The side of venturi, and guarantee that the axial direction of low pressure pressure sky and high pressure pressure port is mutually perpendicular to a bar axial direction for formula flowmeter, lead to It crosses and carries out pressure by the way of single-point pressure, avoiding bar formula flowmeter from having an impact the flow field in pipeline causes to influence pressure Effect;
7. a kind of redundant flow measuring device of the utility model controls the conducting of pressure guiding pipe by the control valve on pressure guiding pipe And truncation, it is operated convenient for related personnel.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings, in which:
Fig. 1 is a kind of structural schematic diagram of redundant flow measuring device of the utility model;
Marked in the figure: 1- Venturi tube, 2- bars of formula flowmeter, the first differential pressure transmitter of 3-, the second differential pressure transmitter of 4-, 5- Flow integrator, 6- pressure guiding pipe, 7- high pressure pressure port, 8- low pressure pressure port, 9- control valve.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this Utility model is not used to limit the utility model, i.e., the described embodiments are only a part of the embodiments of the utility model, Instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can be with each Different configurations is planted to arrange and design.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Reality based on the utility model Apply example, those skilled in the art's every other embodiment obtained without making creative work belongs to The range of the utility model protection.
It should be noted that the relational terms of term " first " and " second " or the like be used merely to an entity or Operation is distinguished with another entity or operation, and without necessarily requiring or implying between these entities or operation, there are any This actual relationship or sequence.Moreover, the terms "include", "comprise" or its any other variant be intended to it is non-exclusive Property include so that include a series of elements process, method, article or equipment not only include those elements, but also Further include other elements that are not explicitly listed, or further include for this process, method, article or equipment it is intrinsic Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including described There is also other identical elements in the process, method, article or equipment of element.
Embodiment
As shown in Figure 1, a kind of redundant flow measuring device, including Venturi tube 1, bar formula flowmeter 2, the first differential pressure transporting Device 3, the second differential pressure transmitter 4, flow integrator 5, described bar of formula flowmeter 2 is at least partly from the throat upper end of Venturi tube 1 Inside is protruded into be fixedly connected with Venturi tube 1, described bar of formula flowmeter 2 is connect by pressure guiding pipe 6 with the first differential pressure transmitter 3, The side of the throat of the Venturi tube 1 is provided with low pressure pressure port 8, and the side of the inlet cylinders section of the Venturi tube 1 is set It is equipped with high pressure pressure port 7, the high pressure pressure port 7 and low pressure pressure port 8 are connected by pressure guiding pipe 6 and the second differential pressure transmitter 4 It connects, first differential pressure transmitter 3 and the second differential pressure transmitter 4 are connect with flow integrator 5.
Preferably, the Venturi tube 1 is using machining.Venturi tube 1 is machined to by the prior art Type prevents from by the way of welding Venturi tube 1 being deformed, avoids in use process fluid from flowing through Venturi tube 1 and go out The unstable situation in existing flow field influences flow measurement precision.
Preferably, the distance at described bar of formula flowmeter 2 to the laryngeal entrance end of Venturi tube 1 is greater than to Venturi tube 1 The distance of throat outlet end.Guarantee that bar formula flowmeter 2 can obtain bigger differential pressure under higher flow velocity, improves flow measurement Precision and measurement range.
Preferably, the coarse processing of the front surface of described bar of formula flowmeter 2.It is carried out by the front surface to bar formula flowmeter 2 Coarse processing, so that the front surface of bar formula flowmeter 2 is uneven, wherein when the front surface of fluid and bar formula flowmeter 2 contacts Reduce the tractive force of fluid, improves the measurement accuracy of bar formula flowmeter 2 when fluid is in low flow velocity.
Preferably, the axial direction of the low pressure pressure port 8 and high pressure pressure port 7 and the axial direction of described bar of formula flowmeter 2 are mutual Vertically.Due to increasing a bar formula flowmeter 2 in the throat of Venturi tube 1, the sampling pressure effect of Venturi tube 1 is caused in order to prevent It influences, therefore Venturi tube 1 is abandoned by the way of annular pressure, selection opens up one group of low pressure in the side of Venturi tube 1 and takes Hole 8 and high pressure pressure port 7 are pressed, at this point, the axial direction of low pressure pressure port 8 and high pressure pressure port 7 and the axial direction of bar formula flowmeter 2 are mutually The sampling pressure effect of Venturi tube 1 is influenced when vertical minimum.
Specifically, the throat upper surface of described bar of formula flowmeter 2 and Venturi tube 1 is welded.No longer retain bar formula flowmeter Mounting seat, and use pressure guiding pipe pressure, convenient for a bar formula flowmeter is installed to inside the narrow Venturi tube in inner space.
In addition, being provided with control valve 9 on the pressure guiding pipe 6, the control valve 9 is for controlling in the present embodiment The conducting or truncation of pressure guiding pipe 6.The conducting or truncation of pressure guiding pipe 6 are realized by operation control valve door 9 for user.
The utility model: the present apparatus is limited suitable for installation site, cannot install two groups of measuring devices simultaneously, and to flow The required precision of measurement is higher, in the environment for needing to carry out flow measurement and flow verification.When carrying out flow measurement, Ke Yixuan It selects while carrying out flow measurement or separately carry out flow measurement, preferably separately carry out flow measurement.It can first be opened when work Control valve 9 corresponding with Venturi tube 1, starts the second differential pressure transmitter 4 and flow integrator 5, and the second differential pressure transmitter 4 is logical The data on flows that the corresponding pressure guiding pipe 6 of Venturi tube 1 obtains acquisition fluids within pipes is crossed, flow integrator 5 is then communicated to.It needs When verifying data on flows, the corresponding control valve 9 of Venturi tube 1 is closed, opens the corresponding control valve 9 of bar formula flowmeter 2, Starting the first differential pressure transmitter 3, the first differential pressure transmitter 3 obtains the data on flows of fluids within pipes by corresponding pressure guiding pipe 6, It is then communicated to flow integrator 5.Flow integrator 5 is used for flow rate calculation, flow compensating calculation, difference alarm etc..Relevant people Data on flows is mutually authenticated by flow integrator 5 in member, guarantees measurement accuracy and measurement stability.
The above is only the preferred embodiment of the utility model only, the protection model being not intended to limit the utility model It encloses, anyone skilled in the art any modification made within spirit of the present utility model and principle is equally replaced It changes and improves, should be included within the scope of protection of this utility model.

Claims (7)

1. a kind of redundant flow measuring device, it is characterised in that: including Venturi tube, bar formula flowmeter, the first differential pressure transmitter, Second differential pressure transmitter, flow integrator, described bar of formula flowmeter at least partly protrude into inside from the throat upper end of Venturi tube It is fixedly connected with Venturi tube, described bar of formula flowmeter is connect by pressure guiding pipe with the first differential pressure transmitter, the Venturi tube The side of throat be provided with low pressure pressure port, the side of the inlet cylinders section of the Venturi tube is provided with high pressure pressure port, The high pressure pressure port and low pressure pressure port pass through pressure guiding pipe and connect with the second differential pressure transmitter, first differential pressure transmitter It is connect with flow integrator with the second differential pressure transmitter.
2. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the Venturi tube is added using machine Work molding.
3. a kind of redundant flow measuring device according to claim 1, it is characterised in that: described bar of formula flowmeter to literary mound In pipe laryngeal entrance end distance be greater than to the throat outlet end of Venturi tube distance.
4. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the preceding table of described bar of formula flowmeter The coarse processing in face.
5. a kind of redundant flow measuring device according to claim 1, it is characterised in that: described bar of formula flowmeter and Wen Qiu In pipe throat upper surface welding.
6. a kind of redundant flow measuring device according to claim 1, it is characterised in that: the low pressure pressure port and high pressure The axial direction of pressure port and the axial direction of described bar of formula flowmeter are mutually perpendicular to.
7. a kind of redundant flow measuring device according to claim 1, it is characterised in that: be provided on the pressure guiding pipe Control valve, the control valve are used to control the conducting or truncation of pressure guiding pipe.
CN201822058656.5U 2018-12-07 2018-12-07 A kind of redundant flow measuring device Active CN209027599U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822058656.5U CN209027599U (en) 2018-12-07 2018-12-07 A kind of redundant flow measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822058656.5U CN209027599U (en) 2018-12-07 2018-12-07 A kind of redundant flow measuring device

Publications (1)

Publication Number Publication Date
CN209027599U true CN209027599U (en) 2019-06-25

Family

ID=66911460

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822058656.5U Active CN209027599U (en) 2018-12-07 2018-12-07 A kind of redundant flow measuring device

Country Status (1)

Country Link
CN (1) CN209027599U (en)

Similar Documents

Publication Publication Date Title
EP3494278B1 (en) Monitoring hydrocarbon fluid flow
CN100425954C (en) A differential pressure type flow measuring method and flow apparatus thereof
CN202281632U (en) Differential pressure type virtual flowmeter
CN107976222A (en) A kind of Pitot tube integrated gas mass flow measurement methods
CN202483554U (en) Oil well produced-fluid optical fiber measuring system
CN200993004Y (en) Separator oil-gas continuousautomatic metering device
CN111912468A (en) Novel underground non-elevation pressure flowmeter
CN206269871U (en) A kind of Pitot tube integrated gas mass flowmenter
CN204788515U (en) Curved elbow meter of S
CN209027599U (en) A kind of redundant flow measuring device
CN109405899A (en) A kind of redundant flow measuring device
CN204514403U (en) A kind of differential pressure mass flowmeter for vortex street
CN207113940U (en) Throat's pressure Long Nozzle throttling arrangement
CN204085644U (en) A kind of flow calibrating device
CN201152760Y (en) Integrated intelligent inner cone type flow meter
CN105781532B (en) Leak source depth detection experimental device
CN206627243U (en) Pressure transmitter sampling system and differential pressure transmitter sampling system
CN207248254U (en) A kind of apparatus for measuring air quantity
CN212482578U (en) Porous float flowmeter
CN205483097U (en) Differential pressure flow detecting head and contain differential pressure flow detecting device of this detecting head
CN204007732U (en) A kind of online dismounting plug-in type Spindle Flowmeter
CN203772325U (en) Integral pore plate flowmeter
Zheng et al. Research on flow diagnosis of multipath ultrasonic flowmeter
CN209308677U (en) A kind of individual well production liquid metering device
CN216081612U (en) Novel differential pressure type flowmeter

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant