CN109974795A - A kind of balanced flow measuring device and Flow Measuring System - Google Patents
A kind of balanced flow measuring device and Flow Measuring System Download PDFInfo
- Publication number
- CN109974795A CN109974795A CN201811407804.8A CN201811407804A CN109974795A CN 109974795 A CN109974795 A CN 109974795A CN 201811407804 A CN201811407804 A CN 201811407804A CN 109974795 A CN109974795 A CN 109974795A
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- measurement
- pipe
- balanced flow
- balanced
- flow measuring
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- 238000005259 measurement Methods 0.000 claims abstract description 87
- 238000000034 method Methods 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a 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
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention relates to a kind of balanced flow measuring device and Flow Measuring Systems, including balanced flow sensor, the balanced flow sensor is fixed on inside measurement pipeline by supporting element, and the pressure short tube that balanced flow covers disposed on sensor is set extend out to measurement pipeline external, the measurement pipe diameter matches with the process pipe diameter to measurement of discharge, pipe ends are measured equipped with the connection structure for connecting with to measurement of discharge process pipe, balanced flow measuring device of the invention meets the flow measurement demand of heavy caliber (DN500-DN3000) pipeline internal medium.
Description
Technical field
The present invention relates to flow measurement equipment technical fields, and in particular to a kind of balanced flow measuring device and flow measurement
System.
Background technique
Balanced flow measuring device belongs to a kind of differential pressure type flow instrument, and working principle, which is all based in closed conduct, to flow
Weight conservation (continuity equation) and the conservation of energy (Bernoulli equation) law, current balanced flow measuring device can only be used
In the measurement of small-bore process pipe flow, it is unable to satisfy the measurement of heavy caliber (DN500-DN3000) process pipe flow.
Summary of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, providing a kind of balanced flow measuring device, meet
The measurement demand of heavy caliber (DN500-DN3000) process pipe flow.
To achieve the above object, the present invention adopts the following technical solutions:
A kind of balanced flow measuring device, including balanced flow sensor, the balanced flow sensor pass through supporting element
It is fixed on inside measurement pipeline, and the pressure short tube that balanced flow covers disposed on sensor is set extend out to measurement pipeline external, the survey
Amount pipe diameter matches with the process pipe diameter to measurement of discharge, and measurement pipeline can connect the process duct that heavy caliber waits for measurement of discharge
Road, meets rate-of flow measurement demand in heavy caliber process pipe, measurement pipe ends be equipped with for to measurement of discharge technique
The connection structure of pipeline connection.
Further, the balanced flow sensor is using porous plate flow sensor or rectifier type flow sensor or tune
Shaping flow sensor.
Further, the supporting element uses steel pipe, and described steel pipe one end is fixedly connected with balanced flow sensor, another
It holds and is fixedly connected with the inner surface of measurement pipeline,
Further, the balanced flow sensor and measurement pipeline coaxial arrangement.
Further, the measurement pipeline is equipped with through-hole, and the pressure short tube on the balanced flow sensor passes through logical
Hole extend out to measurement pipeline external, is sealed between pressure short tube outer wall and through-hole.
Further, the connection structure uses connecting flange.
The invention also discloses a kind of Flow Measuring Systems, including the balanced flow measuring device, the measurement pipe
The both ends in road are connect with the process pipe to measurement of discharge, and the pressure short tube of balanced flow sensor connects three valves by pressure guiding pipe
Group, three valve group are connect with differential pressure transmitter.
Further, when medium temperature to be measured is higher than 80 DEG C, condenser is set between pressure guiding pipe and three valve groups.
Further, when the medium of measurement of discharge is gas, pressure short tube and pressure guiding pipe are towards to measurement of discharge process pipe
Surface, three valve groups and differential pressure transmitter are located at the surface to measurement of discharge process pipe.
Further, when the medium of measurement of discharge is liquid, pressure short tube and pressure guiding pipe are towards to measurement of discharge process pipe
Underface, three valve groups and differential pressure transmitter are located at the underface to measurement of discharge process pipe.
Beneficial effects of the present invention:
Balanced flow measuring device structure of the invention is simple, easy to process, by by existing balanced flow sensor
It installs in measurement pipeline, measurement pipeline matches with bigbore to measurement of discharge process pipe, meets measurement heavy caliber work
The demand of skill pipeline internal medium flow overcomes traditional balanced flow sensor and is unable to measure heavy caliber (DN500-DN3000)
In process pipe the problem of rate-of flow.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation do not constitute the restriction to the application for explaining the application.
Fig. 1 is balanced flow measuring device overall structure diagram of the present invention；
Fig. 2 is the present invention for measuring the measuring system structural schematic diagram of gas medium flow；
Fig. 3 is the present invention for measuring the measuring system structural schematic diagram of high-temp liquid rate-of flow；
Wherein, 1. balanced flow sensor, 1-1. pressure short tube, 2. measurement pipelines, 3. steel pipes, 4. flange arrangements, 5. pads
Piece, 6. process pipes, 7. pressure guiding pipes, 8. 3 valve groups, 9. differential pressure transmitters, 10. condensers.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In order to facilitate narration, if there is "upper", "lower", " left side " " right side " printed words in the present invention, only expression and attached drawing itself
Upper and lower, left and right direction it is consistent, not to structure rise restriction effect, it is only for convenient for description the present invention and simplification retouch
It states, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, and be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
As background technique is introduced, existing balanced flow measuring device is unable to measure medium in large diameter pipeline
Flow, in view of the above-mentioned problems, present applicant proposes a kind of balanced flow measuring devices.
In a kind of exemplary embodiment of the application, as shown in Figure 1, a kind of balanced flow measuring device, including equiulbrium flow
Quantity sensor 1, the balanced flow sensor are fixed on inside measurement pipeline 2 by supporting element, and on balanced flow sensor
The pressure short tube 1-1 of setting extend out to measurement pipeline external, the measurement pipe diameter and the process pipe diameter to measurement of discharge
Match, measurement pipe ends are equipped with the connection structure for connecting with to measurement of discharge process pipe.
The balanced flow sensor uses existing flow sensor, and porous plate flow sensor or rectifier type can be used
Flow sensor or adjustment shape flow sensor.Existing above-mentioned flow sensor is unable to measure the large-diameter pipe of DN500 or more
Road meets the measurement demand of large diameter pipeline by being fixed with inside measurement pipeline.
The measurement pipeline uses metal tube, and the interior media temperature that can be born reaches as high as 850 DEG C, the pressure that can be born
Power reaches as high as 42Mpa, and corrosion-resistant, stain resistance.
The supporting element uses steel pipe 3, and balanced flow sensor upper end and one end of two steel pipes are welded and fixed, and two
Steel pipe is symmetrically distributed in the pressure short tube two sides of balanced flow sensor, one end of balanced flow sensor lower end and a steel pipe
It is welded and fixed, which is located at the middle part of balanced flow sensor, and the other end of three steel pipes is welded with the inner surface of measurement pipe
Connect fixation.
The equal length of three steel pipes makes balanced flow sensor and measurement pipeline coaxial arrangement, when measurement, balanced flow
Sensor improves the accuracy of measurement result to measurement of discharge media interior stress equalization.
It is set on the measurement pipeline there are two through-hole, the pressure short tube of balanced flow sensor is stretched out by the through-hole
To the outside of measurement pipeline, welded seal is carried out between pressure short tube outer circumference surface and through-hole, is prevented to be measured in measurement pipeline
Measure dielectric leakage.
The connection structure for measuring pipe ends uses flange arrangement 4, by flange arrangement and to the process pipe of measurement of discharge
Connection can also be used and connect to folder, straight weldering or square tube with the process pipe to measurement of discharge, and specific connection type is according to product situation
Depending on, the rate-of flow of bidirectional flow can be measured.
Balanced flow measuring device of the invention can measure within the scope of DN500-DN3000 caliber medium in process pipe
Flow, precision reach 1.0, and the process pipe flow development length to be measured before balanced flow measuring device requires at least up to 5 times
Process pipe diameter to be measured, the process pipe flow development length to be measured after balanced flow measuring device requires to be at least up to
The diameter of 2 times of process pipe to be measured, the range ratio of balanced flow measuring device are 10:1 or more, and repeatability is 0.1%, are surveyed
The circulation area ratio β range of buret road internal balance flow sensor is 0.25-0.9, and balanced flow measuring device can measure
The flow of two-way flow medium, and the flow of various media can be measured.
The invention also discloses a kind of measuring systems to measure pipe ends using the balanced flow measuring device
It is connect by flange arrangement and gasket 5 with the process pipe 6 of flow to be measured, the pressure short tube of the balanced flow sensor
It is connect by pressure guiding pipe 7 with three valve groups 8, three valve group is connect with differential pressure transmitter 9, pressure short tube and pressure guiding pipe, pressure guiding pipe
The connection type of existing flow sensor is used with the connection types of three valve groups, three valve groups and differential pressure transmitter, herein not into
Row narration in detail.
When the medium temperature of measurement of discharge is higher than 80 DEG C, it is connected with condenser 10 between pressure guiding pipe and three valve groups, treats
The medium of measurement of discharge cools down, and prevents high-temperature medium from damaging to differential pressure transmitter.
When the medium of measurement of discharge is gas, pressure short tube and pressure guiding pipe are towards the position directly above of measurement pipeline, i.e.,
Three valve groups and differential pressure transmitter are located at the surface of measurement pipeline, and the impurity such as mixed water droplet can be under gravity in gas
Sink, differential pressure transmitter will not be entered by pressure guiding pipe, improve the accuracy of measurement result.
When the medium of measurement of discharge is liquid, sampling short tube and pressure guiding pipe are towards measurement pipeline following location directly, i.e.,
Three valve groups and differential pressure transmitter are located at the underface of measurement pipeline, and differential pressure transmitter is supported using supporter, avoid impulse
Pipe deformation leaks, and mixed bubble floating in liquid will not enter differential pressure transmitter by pressure guiding pipe, improve measurement result
Accuracy.
When using measuring system measurement of the invention, the medium in process pipe to be measured flows through the equiulbrium flow and measures
Device is measured, medium is flowed through measurement pipe road and measures the balanced flow sensor in pipeline, produced using balanced flow sensor both ends
Raw pressure difference realizes the measurement of flow, and differential pressure transmitter detects to obtain this pressure difference, and pressure difference is converted into corresponding flow
Value realizes the measurement to rate-of flow, and working principle is identical as existing balanced flow sensor, herein without chatting in detail
It states.
Using this measuring system, the flow of a variety of media can measure, measurement result is accurate, and meets in large diameter pipeline
The measurement demand of rate-of flow.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (10)
1. a kind of balanced flow measuring device, which is characterized in that including balanced flow sensor, the balanced flow sensor is logical
It crosses supporting element to be fixed on inside measurement pipeline, and the pressure short tube that balanced flow covers disposed on sensor is set is extend out to outside measurement pipeline
Portion, the measurement pipe diameter match with the process pipe diameter to measurement of discharge, measurement pipe ends be equipped with for it is to be measured
The connection structure of flow process pipe connection.
2. a kind of balanced flow measuring device as described in claim 1, which is characterized in that the balanced flow sensor is adopted
With porous plate flow sensor or rectifier type flow sensor or adjustment shape flow sensor.
3. a kind of balanced flow measuring device as described in claim 1, which is characterized in that the supporting element uses steel pipe, institute
It states steel pipe one end to be fixedly connected with balanced flow sensor, the other end is fixedly connected with the inner surface of measurement pipeline.
4. a kind of balanced flow measuring device as described in claim 1, which is characterized in that the balanced flow sensor and survey
The coaxial arrangement of buret road.
5. a kind of balanced flow measuring device as described in claim 1, which is characterized in that the measurement pipeline is equipped with logical
Hole, pressure short tube on the balanced flow sensor extend out to measurement pipeline external by through-hole, pressure short tube outer wall and logical
It is sealed between hole.
6. a kind of balanced flow measuring device as described in claim 1, which is characterized in that the connection structure uses connection method
It is blue.
7. a kind of Flow Measuring System using balanced flow measuring device described in any one of claims 1-6, feature exist
In the both ends of the measurement pipeline are connect with the process pipe to measurement of discharge, and the pressure short tube of balanced flow sensor is by drawing
Pressure pipe connects three valve groups, and three valve group is connect with differential pressure transmitter.
8. Flow Measuring System as claimed in claim 7, which is characterized in that when medium temperature to be measured is higher than 80 DEG C, impulse
Condenser is set between Guan Yusan valve group.
9. Flow Measuring System as claimed in claim 7, which is characterized in that when the medium of measurement of discharge is gas, pressure is short
Pipe and pressure guiding pipe are located at towards the surface to measurement of discharge process pipe, three valve groups and differential pressure transmitter to measurement of discharge process pipe
Surface.
10. Flow Measuring System as claimed in claim 7, which is characterized in that when the medium of measurement of discharge is liquid, pressure is short
Pipe and pressure guiding pipe are located at towards the underface to measurement of discharge process pipe, three valve groups and differential pressure transmitter to measurement of discharge process pipe
Underface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407804.8A CN109974795A (en) | 2018-11-23 | 2018-11-23 | A kind of balanced flow measuring device and Flow Measuring System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811407804.8A CN109974795A (en) | 2018-11-23 | 2018-11-23 | A kind of balanced flow measuring device and Flow Measuring System |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109974795A true CN109974795A (en) | 2019-07-05 |
Family
ID=67076101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811407804.8A Withdrawn CN109974795A (en) | 2018-11-23 | 2018-11-23 | A kind of balanced flow measuring device and Flow Measuring System |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109974795A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763280A (en) * | 2019-11-14 | 2020-02-07 | 湖南中部芯谷科技有限公司 | Microelectronic rubber tube monitoring device |
| CN115096381A (en) * | 2022-06-20 | 2022-09-23 | 海南华惠科技有限公司 | A stepping flow measuring sensor and its application |
-
2018
- 2018-11-23 CN CN201811407804.8A patent/CN109974795A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763280A (en) * | 2019-11-14 | 2020-02-07 | 湖南中部芯谷科技有限公司 | Microelectronic rubber tube monitoring device |
| CN115096381A (en) * | 2022-06-20 | 2022-09-23 | 海南华惠科技有限公司 | A stepping flow measuring sensor and its application |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190705 |