CN220794348U - Ultrasonic gas meter flow channel - Google Patents
Ultrasonic gas meter flow channel Download PDFInfo
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- CN220794348U CN220794348U CN202322749269.7U CN202322749269U CN220794348U CN 220794348 U CN220794348 U CN 220794348U CN 202322749269 U CN202322749269 U CN 202322749269U CN 220794348 U CN220794348 U CN 220794348U
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- gas meter
- rectifying
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- 230000007704 transition Effects 0.000 claims abstract description 3
- 230000009471 action Effects 0.000 abstract description 3
- 230000000739 chaotic effect Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model provides an ultrasonic gas meter runner, which aims to solve the technical problem that a measured result has larger error due to the influence of chaotic airflow in a channel. The flow channel comprises: the two ends of the pipeline are larger than the middle part of the pipeline, one end of the pipeline is provided with a primary rectifying area, the primary rectifying area is of a horn-shaped structure, and the inner wall between the primary rectifying area and the middle part of the pipeline is of a curved surface transition structure; the rectifying plates are arranged in the pipeline in parallel, are close to the primary rectifying area, form three channels in the pipeline, and form a secondary rectifying area with the middle of the pipeline; the two ultrasonic transducers are arranged in the middle of the pipeline and are arranged in a V shape. The airflow flows in the primary rectifying area, is rectified, and then forms three airflows under the action of the rectifying sheet, and is stabilized in the secondary rectifying area. At this time, two ultrasonic transducers installed at the middle of the pipe emit ultrasonic signals and detect the air flow velocity, thereby measuring the accurate air flow velocity.
Description
Technical Field
The utility model relates to the field of flow detection of gas meters, in particular to an ultrasonic gas meter flow channel.
Background
The ultrasonic gas meter can be used for measuring the flow of various gas medium fluids in residences and shops. The ultrasonic gas meter is a high-precision, high-stability and non-contact measuring instrument and has the advantages of long service life, wide flow range, low initial flow and the like.
In the detection process of the conventional ultrasonic gas meter, the conventional ultrasonic gas meter is influenced by chaotic air flow in a channel, so that a measurement result of the conventional ultrasonic gas meter has larger error.
Disclosure of Invention
Aiming at the technical problem that the measured result has larger error under the influence of chaotic air flow in the channel, the utility model provides an ultrasonic gas meter runner which has the advantages of stable performance and accurate measured result.
The technical scheme of the utility model is as follows:
an ultrasonic gas meter flow channel comprising:
the size of two ends of the pipeline is larger than that of the middle part of the pipeline, one end of the pipeline is provided with a primary rectifying area, the primary rectifying area is of a horn-shaped structure, and the inner wall between the primary rectifying area and the middle part of the pipeline is of a curved surface transition structure;
the rectifying plates are arranged in the pipeline in parallel, are close to the primary rectifying area, form three channels in the pipeline, and form a secondary rectifying area with the middle of the pipeline;
the two ultrasonic transducers are arranged in the middle of the pipeline and are arranged in a V shape.
Optionally, the number of the rectifying sheets is at least six, four of the rectifying sheets form two V-shaped structures in the middle of the pipeline, the two rectifying sheets are arranged in parallel, a channel is formed between the two rectifying sheets, and the other two rectifying sheets are respectively arranged on the inner wall of the pipeline.
Alternatively, the widths of the three channels are the same.
Optionally, one end of a sharp angle formed by two rectifying sheets distributed in a V shape is opposite to one end of the pipeline in a horn-shaped structure.
Optionally, two ultrasonic transducers are respectively near two ends of the pipeline.
Optionally, a connection board is arranged between the two ultrasonic transducers.
Optionally, the fairing extends through the duct.
Optionally, the two ultrasonic transducers are symmetrically distributed.
Optionally, one end of the ultrasonic transducer is in communication with the interior of the conduit.
Optionally, the pipeline is square in structure.
Compared with the prior art, the utility model has the beneficial effects that:
the air flow enters the primary rectifying area from one end of the pipeline, which is a horn mouth, flows and rectifies in the primary rectifying area, then enters the middle part of the pipeline, and forms three air flows under the action of the rectifying piece, and meanwhile, the air flows become stable in the secondary rectifying area. At this time, two ultrasonic transducers installed at the middle of the pipe emit ultrasonic signals and detect the air flow velocity, thereby measuring the accurate air flow velocity.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is an end view of the present utility model;
FIG. 3 is a schematic cross-sectional view of the present utility model.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships conventionally placed in use of the product of the present utility model, or orientations or positional relationships conventionally understood by those skilled in the art, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1:
referring to fig. 1-3, an ultrasonic gas meter flow channel comprises a pipeline 1, a plurality of rectifying sheets 2 and two ultrasonic transducers 3. Specifically, the two ends of the conduit are larger than the middle thereof, so that the outer shape of the pipeline 1 is a dumbbell-shaped structure. The pipeline 1 is square pipe, and the one end of pipeline 1 is one-level rectification district, and one-level rectification district is loudspeaker form structure.
The rectifying sheets 2 are all long strips, all the rectifying sheets 2 are arranged in parallel in the pipeline 1, all the rectifying sheets 2 are close to the primary rectifying area, and three channels are formed in the pipeline 1. The three channels and the middle part of the pipeline 1 form a secondary rectifying area.
The two ultrasonic transducers 3 are arranged in the middle of the outer side of the pipeline 1, and the detection ends of the two ultrasonic transducers 3 are communicated with the three channels. The two ultrasonic transducers 3 are symmetrically distributed in a V shape, and the two ultrasonic transducers 3 are respectively close to two ends of the pipeline 1.
When the device works, air flow enters the primary rectifying area from one end of the pipeline 1, which is a horn mouth, flows and rectifies in the primary rectifying area, then enters the middle part of the pipeline 1, forms three air flows under the action of the rectifying piece 2, and is stable in the secondary rectifying area. At this time, two ultrasonic transducers 3 installed at the middle of the duct 1 emit ultrasonic signals and detect the air flow velocity, thereby measuring the accurate air flow velocity.
In one particular embodiment:
the rectifying sheets 2 are six, four of the rectifying sheets are paired with each other, two V-shaped structures are formed, the two V-shaped structures are fixedly arranged in the middle of the pipeline 1, a space exists between the two V-shaped structures, and a space also exists between the two V-shaped structures and the inner wall of the pipeline 1.
The other two rectifying sheets 2 are also arranged in the pipeline 1 and are respectively arranged at two sides of the inner wall of the pipeline 1, the six rectifying sheets 2 are all obliquely arranged in the pipeline 1, and the length direction of the rectifying sheets 2 is perpendicular to the length direction of the pipeline 1.
Preferably, the three channels formed by six fairings 2 have the same width. In this embodiment, by disposing the rectifying fin 2 obliquely in the duct 1, the airflow can be guided to be converted from disturbance to stabilization.
In another specific embodiment:
in order to increase the strength of the two ultrasonic transducers 3, a connecting plate is therefore arranged between the two ultrasonic transducers 3, which connecting plate is also fastened to the outer wall of the pipe 1.
Example 2:
this embodiment differs from embodiment 1 in that: the number of the rectifying sheets 2 is two, the rectifying sheets 2 penetrate through the middle of the whole pipeline 1, and meanwhile, one end, close to the primary rectifying area, of each rectifying sheet 2 is of a V-shaped structure.
The three channels are in a state of being completely isolated from each other by completely penetrating the rectifying sheet 2 into the pipeline 1, so that the turbulence phenomenon between the airflows is further reduced.
The foregoing examples merely illustrate specific embodiments of the utility model, which are described in greater detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.
Claims (10)
1. An ultrasonic gas meter flow channel, comprising:
the size of two ends of the pipeline is larger than that of the middle part of the pipeline, one end of the pipeline is provided with a primary rectifying area, the primary rectifying area is of a horn-shaped structure, and the inner wall between the primary rectifying area and the middle part of the pipeline is of a curved surface transition structure;
the rectifying plates are arranged in the pipeline in parallel, are close to the primary rectifying area, form three channels in the pipeline, and form a secondary rectifying area with the middle of the pipeline;
the two ultrasonic transducers are arranged in the middle of the pipeline and are arranged in a V shape.
2. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
the rectifier sheets are at least six, four of the rectifier sheets form two V-shaped structures in the middle of the pipeline, are arranged in parallel, form channels between the two rectifier sheets, and are respectively arranged on the inner wall of the pipeline.
3. The ultrasonic gas meter flow path of claim 2, wherein the flow path comprises a plurality of flow channels,
the widths of the three channels are the same.
4. The ultrasonic gas meter flow path of claim 3, wherein,
one end of a sharp angle formed by two rectifying sheets distributed in a V shape is opposite to one end of the pipeline in a horn-shaped structure.
5. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
the two ultrasonic transducers are respectively close to two ends of the pipeline.
6. The ultrasonic gas meter flow path of claim 5, wherein the flow path comprises a plurality of flow channels,
a connecting plate is arranged between the two ultrasonic transducers.
7. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
the rectifying piece penetrates through the pipeline.
8. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
the two ultrasonic transducers are symmetrically distributed.
9. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
one end of the ultrasonic transducer is communicated with the inside of the pipeline.
10. The ultrasonic gas meter flow path of claim 1, wherein the flow path comprises a plurality of flow channels,
the pipeline is of a square structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322749269.7U CN220794348U (en) | 2023-10-13 | 2023-10-13 | Ultrasonic gas meter flow channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322749269.7U CN220794348U (en) | 2023-10-13 | 2023-10-13 | Ultrasonic gas meter flow channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220794348U true CN220794348U (en) | 2024-04-16 |
Family
ID=90660250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322749269.7U Active CN220794348U (en) | 2023-10-13 | 2023-10-13 | Ultrasonic gas meter flow channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220794348U (en) |
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2023
- 2023-10-13 CN CN202322749269.7U patent/CN220794348U/en active Active
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