CN113588020A - Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device - Google Patents
Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device Download PDFInfo
- Publication number
- CN113588020A CN113588020A CN202110732040.5A CN202110732040A CN113588020A CN 113588020 A CN113588020 A CN 113588020A CN 202110732040 A CN202110732040 A CN 202110732040A CN 113588020 A CN113588020 A CN 113588020A
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- arc
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- plane
- metering cavity
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- 238000005259 measurement Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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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
- G01F1/66—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 measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/662—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Electromagnetism (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
The utility model provides an arc, broken line sound way ultrasonic wave gas table runner device, belongs to measuring instrument technical field, has the arcwall face about the arc casing, and both sides are the plane around, are interior arc measurement chamber. The arc measurement cavity is provided with a plurality of commutator segments with arc upper and lower edges which are arranged in a vertical parallel clearance mode. A pair of ultrasonic transducers are arranged on two sides of the arc-shaped metering cavity, one ultrasonic transducer is positioned on the upper left of the arc-shaped metering cavity, and the other ultrasonic transducer is positioned on the lower right of the arc-shaped metering cavity. The upper part and the lower part of the arc-shaped metering cavity are respectively provided with a first plane and a second plane which are used for making a reflecting surface for the ultrasonic transducer. The area of the first plane and the second plane is larger than the cross-sectional area of the energy column emitted or received by the two ultrasonic transducers. The ultrasonic energy column that this design transducer transmitted passes through the air current cubic at the measuring cavity, has increased the number of times that the ultrasonic energy column passes through the air current, has accomplished the sample work of ultrasonic energy column on different velocity of flow cross sections, makes the measurement more accurate, stable.
Description
Technical Field
The invention belongs to the technical field of metering instruments, and particularly relates to an arc-shaped and broken-line sound path ultrasonic gas meter flow channel device.
Background
The ultrasonic gas meter has the characteristics of wide measuring range, high precision, long service life and low maintenance rate, and has a full electronic structure, no mechanical transmission part, no mechanical noise, no mechanical abrasion and fault influence during operation, no magnetic sensing element and no magnetic field influence on metering. Compared with the prior membrane type gas meter, the membrane type gas meter has incomparable advantages in the aspects of volume, precision, repeatability, service life, maintenance and intelligent expansion, and the ultrasonic gas meter is selected to become the trend of the gas metering field.
The flow channel design of the ultrasonic gas meter directly influences the accurate metering of the ultrasonic gas meter, at present, various verification channels of the ultrasonic gas meter designed and researched in China have no good rectification effect, the flow velocity of gas flow is unstable, the flow velocity distribution is not stable, the fluctuation range is large, and the metering accuracy is not high.
Disclosure of Invention
The invention aims to provide an arc-shaped and broken-line sound path ultrasonic gas meter flow channel device, wherein the arc-shaped design can effectively rectify gas from a turbulent unstable flow state into a stable flow state, and the broken-line design increases the number of times of ultrasonic signals passing through gas flow, so that the measurement is more accurate, and the precision of ultrasonic detection is improved.
The technical scheme is as follows:
an arc-shaped and broken-line sound path ultrasonic gas meter flow passage device comprises an arc-shaped shell, a plurality of rectifier slices and a pair of ultrasonic transducers.
The technical key points are as follows:
the arc shell is provided with arc surfaces at the upper and lower parts, the front and rear sides are planes, and an arc metering cavity is arranged in the arc metering cavity.
The arc measurement cavity is provided with a plurality of commutator segments with arc upper and lower edges which are arranged in a vertical parallel clearance mode.
A pair of ultrasonic transducers are arranged on two sides of the arc-shaped metering cavity, one ultrasonic transducer is positioned on the upper left of the arc-shaped metering cavity, and the other ultrasonic transducer is positioned on the lower right of the arc-shaped metering cavity.
The upper part and the lower part of the arc-shaped metering cavity are respectively provided with a first plane and a second plane which are used for making a reflecting surface for the ultrasonic transducer.
The area of the first plane and the second plane is larger than the cross-sectional area of the energy column emitted or received by the two ultrasonic transducers.
The ultrasonic transducer on the upper left forms an angle A of 40-85 degrees with the second plane.
The reflection angle B of the ultrasound transducer located at the lower right on the first plane is 40-85 °.
The advantages are that:
the arc design of the flow channel can regularly change or finely adjust the flowing direction of the air flow, so that the distribution of the air flow velocity is more uniform and stable. The arc-shaped curved channel of the flow channel interacts with the plurality of commutator segments, so that stable average flow velocity is obtained conveniently.
And other runners, the ultrasonic energy post that ultrasonic transducer sent only once or the secondary (single reflection) through the air current in the measurement intracavity, and the runner design of this broken line reflection, the ultrasonic energy post that the transducer sent passes through the air current thrice in the measurement intracavity, has increased the number of times that the ultrasonic energy post passes through the air current, has accomplished the sample work of ultrasonic energy post on different velocity of flow sections, makes the measurement more accurate, stable.
Drawings
FIG. 1 is a top view of the invention (with air in and out).
Fig. 2 is a front view of the present invention.
The ultrasonic transducer comprises an arc-shaped shell 1, a rectifying sheet 2, an ultrasonic transducer 3, a first plane 4 and a second plane 5.
Detailed Description
The utility model provides an arc, broken line sound way ultrasonic wave gas table runner device, includes arc casing 1, a plurality of commutator segments 2 and a pair of ultrasonic transducer 3.
The arc-shaped shell 1 is formed by buckling two half shells with basically symmetrical shapes.
The arc-shaped shell 1 is provided with arc-shaped surfaces up and down, the front side and the rear side are planes, and an arc-shaped metering cavity is internally provided with a left opening and a right opening.
The arc measurement cavity is provided with a plurality of commutator segments 2 with arc upper and lower edges which are arranged in a vertical parallel clearance way.
The upper part and the lower part of the arc-shaped metering cavity are respectively provided with a first plane 4 and a second plane 5.
A pair of ultrasonic transducers 3 are arranged on two sides of the arc-shaped metering cavity, one ultrasonic transducer 3 is positioned on the upper left of the arc-shaped metering cavity, a second plane 5 is arranged below the arc-shaped metering cavity, one ultrasonic transducer 3 is positioned on the lower right of the arc-shaped metering cavity, and a first plane 4 is arranged above the arc-shaped metering cavity.
The areas of the first plane 4 and the second plane 5 are larger than the cross-sectional area of the energy column emitted or received by the two ultrasonic transducers 3, so that the energy column has enough contact space with the first plane 4 and the second plane 5 to generate reflection.
The ultrasonic transducer 3 located at the upper left has an angle a of 40-85 deg. to the second plane 5.
The reflection angle B of the ultrasound transducer 3 located at the lower right on the first plane 4 is 40-85 °.
Specifically, the included angle A is 40 degrees, and the reflection angle B is 40 degrees.
Alternatively, the included angle a is 85 ° and the reflection angle B is 85 °.
Alternatively, the included angle a is 60 ° and the reflection angle B is 60 °.
Claims (3)
1. An arc-shaped and broken-line sound path ultrasonic gas meter flow channel device comprises an arc-shaped shell (1), a plurality of rectifier slices (2) and a pair of ultrasonic transducers (3); the method is characterized in that:
the arc-shaped shell (1) is provided with arc-shaped surfaces at the upper part and the lower part, the front side and the rear side are planes, and an arc-shaped metering cavity is arranged in the arc-shaped shell;
the arc-shaped metering cavity is provided with a plurality of rectifier slices (2) which are arranged in a vertical parallel clearance mode and are provided with arc-shaped upper edges and arc-shaped lower edges;
a pair of ultrasonic transducers (3) is arranged on two sides of the arc-shaped metering cavity, one ultrasonic transducer (3) is positioned at the upper left of the arc-shaped metering cavity, and the other ultrasonic transducer (3) is positioned at the lower right of the arc-shaped metering cavity;
a first plane (4) and a second plane (5) are respectively arranged above and below the arc-shaped metering cavity and are used for reflecting the ultrasonic transducer (3).
2. The flow channel device of the arc-shaped and fold-line sound path ultrasonic gas meter according to claim 1, characterized in that:
the area of the first plane (4) and the second plane (5) is larger than the cross-sectional area of the energy column emitted or received by the two ultrasonic transducers (3);
the included angle A between the ultrasonic transducer (3) positioned at the upper left and the second plane (5) is 40-85 DEG
The reflection angle B of the ultrasonic transducer (3) positioned at the lower right on the first plane (4) is 40-85 degrees.
3. The flow channel device of the arc-shaped and fold-line sound path ultrasonic gas meter according to claim 2, characterized in that:
the included angle A is 40 degrees, and the reflection angle B is 40 degrees; or the included angle A is 85 degrees, and the reflection angle B is 85 degrees; alternatively, the included angle a is 60 ° and the reflection angle B is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110732040.5A CN113588020A (en) | 2021-06-30 | 2021-06-30 | Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110732040.5A CN113588020A (en) | 2021-06-30 | 2021-06-30 | Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113588020A true CN113588020A (en) | 2021-11-02 |
Family
ID=78245141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110732040.5A Pending CN113588020A (en) | 2021-06-30 | 2021-06-30 | Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113588020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814284A (en) * | 2022-04-21 | 2022-07-29 | 上海理工大学 | Method and device for measuring cascade flow field by reflection-type mounted ultrasonic array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29803911U1 (en) * | 1998-03-05 | 1999-04-01 | Siemens AG, 80333 München | Flow meter |
| JP2008046062A (en) * | 2006-08-21 | 2008-02-28 | Aichi Tokei Denki Co Ltd | Ultrasonic flowmeter |
| CN106871981A (en) * | 2017-02-13 | 2017-06-20 | 青小武 | A kind of flow passage structure for ultrasonic wave gas, water, hotlist or flowmeter |
| CN213209159U (en) * | 2020-11-11 | 2021-05-14 | 浙江正泰燃气装备有限公司 | Ultrasonic wave metering device |
| CN216283723U (en) * | 2021-06-30 | 2022-04-12 | 水发航宇星物联科技(辽宁)有限公司 | Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device |
-
2021
- 2021-06-30 CN CN202110732040.5A patent/CN113588020A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29803911U1 (en) * | 1998-03-05 | 1999-04-01 | Siemens AG, 80333 München | Flow meter |
| JP2008046062A (en) * | 2006-08-21 | 2008-02-28 | Aichi Tokei Denki Co Ltd | Ultrasonic flowmeter |
| CN106871981A (en) * | 2017-02-13 | 2017-06-20 | 青小武 | A kind of flow passage structure for ultrasonic wave gas, water, hotlist or flowmeter |
| CN213209159U (en) * | 2020-11-11 | 2021-05-14 | 浙江正泰燃气装备有限公司 | Ultrasonic wave metering device |
| CN216283723U (en) * | 2021-06-30 | 2022-04-12 | 水发航宇星物联科技(辽宁)有限公司 | Arc-shaped and broken-line sound path ultrasonic gas meter flow passage device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114814284A (en) * | 2022-04-21 | 2022-07-29 | 上海理工大学 | Method and device for measuring cascade flow field by reflection-type mounted ultrasonic array |
| CN114814284B (en) * | 2022-04-21 | 2023-11-07 | 上海理工大学 | Method and device for measuring cascade flow field by using reflectively-installed ultrasonic array |
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