CN218524211U - Ultrasonic gas meter double-flow-channel structure - Google Patents
Ultrasonic gas meter double-flow-channel structure Download PDFInfo
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- CN218524211U CN218524211U CN202222550408.9U CN202222550408U CN218524211U CN 218524211 U CN218524211 U CN 218524211U CN 202222550408 U CN202222550408 U CN 202222550408U CN 218524211 U CN218524211 U CN 218524211U
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Abstract
The utility model provides a be applied to ultrasonic wave gas table double flow channel structure, contain first runner main part, the second runner main part, first runner fixed plate, the second runner fixed plate, the runner pipe, the steady flow piece, measurement PCB board, the runner top cap, ultrasonic transducer lid, first ultrasonic transducer, second ultrasonic transducer, first runner upper cover, second runner upper cover, adopt double flow channel structural design, make the flow field of measuring tube more stable, the measurement is more accurate, especially under the condition of low discharge, the stability and the repeatability of flow are better, and all be equipped with the steady flow piece at every runner, gaseous behind multilayer steady flow piece steady flow, the stability in gas flow field under the complicated condition has been guaranteed, the accuracy nature of ultrasonic wave measurement has been improved.
Description
Technical Field
The utility model relates to an ultrasonic wave gas table field, specifically speaking involve an adopt ultrasonic wave mode measurement gas flow's ultrasonic wave gas table double-flow-passage structure.
Background
Along with the rapid development of the domestic natural gas industry, the intelligent gas meter is applied to the rapid development opportunity, from a mechanical type to an electronic type, from a film type to an ultrasonic wave, the intelligent gas meter is as if the intelligent gas meter is spread after rain, new technology and new concepts are continuously bright, and the accuracy and the application range of gas metering are continuously improved.
As a new type of all-electronic gas meter, the ultrasonic gas meter has entered into a common household in germany, italy and japan, but is still in the beginning stage in China. The ultrasonic gas meter has the characteristics of wide measuring range, high precision, long service life, gas stealing prevention, difficulty in being influenced by a magnetic field, safety, reliability and the like, and has unique advantages compared with the traditional membrane gas meter.
Generally, under the condition that the ultrasonic gas meter metering flow channel is not rectified, the air flow is disordered, stable data cannot be detected by ultrasonic waves, the air flow is unstable, the fluctuation range is large, the error is large, the metering precision is not high, and unnecessary loss is caused.
Disclosure of Invention
The utility model provides a be applied to double-flow-passage structure of ultrasonic wave gas meter adopts double-flow-passage structural design for the flow field of metering tube is more stable, and the measurement is more accurate, and under the condition of especially little flow, the stability and the repeatability of flow are better, and all be equipped with the stationary flow piece at every runner, gaseous behind multilayer stationary flow piece stationary flow, have guaranteed the stability in gas flow field under the complex condition, have improved the accuracy nature of ultrasonic wave measurement.
In order to achieve the above object, the technical solution of the present invention is as follows:
ultrasonic wave gas table double flow channel structure contains first runner main part, second runner main part, first runner fixed plate, second runner fixed plate, runner pipe, steady flow piece, measurement PCB board, runner top cap, ultrasonic transducer lid, first ultrasonic transducer, second ultrasonic transducer, first runner upper cover, second runner upper cover, characterized by:
flow stabilizing sheets are arranged in the first flow channel main body and the second flow channel main body;
sealing rings are arranged between the first runner main body and the runner guide pipe and between the second runner main body and the runner guide pipe;
a first flow channel upper cover is arranged above the first flow channel main body;
a second runner upper cover is arranged above the second runner main body;
the second flow channel upper cover is provided with two ultrasonic transducer mounting holes;
the first flow channel main body is arranged above the second flow channel main body;
the first flow channel fixing plate and the second flow channel fixing plate are arranged above the first flow channel main body and the second flow channel main body;
the ultrasonic transducer cover is used for sealing and fixing the first ultrasonic transducer and the second ultrasonic transducer in the two transducer mounting holes respectively;
screw holes are formed in corresponding positions of the first flow channel main body, the first flow channel fixing plate, the second flow channel main body and the second flow channel fixing plate;
the first flow channel main body, the first flow channel fixing plate, the second flow channel main body and the second flow channel fixing plate are fixedly connected through screws in sequence;
the first flow channel fixing plate and the second flow channel fixing plate are fixedly connected through bolts and nuts;
screw holes are also formed in the positions where the first flow channel fixing plate and the second flow channel fixing plate are connected with the flow channel guide pipe, and the first flow channel fixing plate and the second flow channel fixing plate are fixed with the flow channel guide pipe through screws;
the metering PCB is arranged in the second flow channel upper cover and is connected with the second flow channel upper cover by a buckle;
the runner top cover and the second runner upper cover are fixedly connected through a buckle.
The utility model has the advantages that:
(1) The utility model discloses ultrasonic wave gas table double flow channel structure adopts double flow channel structural design for the flow field of measurement pipe is more stable, and the measurement is more accurate, and under the condition of especially little flow, the stability and the repeatability of flow are better.
(2) The utility model discloses ultrasonic wave gas table double flow channel structure all is equipped with the stationary flow piece at every runner, and gaseous behind multilayer stationary flow piece stationary flow, has guaranteed the stability in gas flow field under the complex condition, has improved the accuracy nature of ultrasonic wave measurement.
Drawings
Figure 1 is the utility model discloses ultrasonic wave gas table double-flow-passage structural schematic diagram.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following description of the specific embodiments and the accompanying drawings. Because the first runner main body, the second runner main body, the first runner fixing plate, the second runner fixing plate, the first runner upper cover and the second runner upper cover have the same structure, only the second runner main body, the second runner fixing plate and the second runner upper cover are marked in the attached drawings.
As shown in figure 1: the ultrasonic gas meter double-flow-channel structure comprises a first flow channel main body, a second flow channel main body (8), a first flow channel fixing plate, a second flow channel fixing plate (6), a flow channel guide pipe (1), a flow stabilizing sheet (9), a metering PCB (printed circuit board) plate (2), a flow channel top cover (3), an ultrasonic transducer cover (4), a first ultrasonic transducer, a second ultrasonic transducer (5), a first flow channel upper cover and a second flow channel upper cover (7), and is characterized in that the structure comprises a first flow channel main body, a second flow channel main body (8), a first flow channel fixing plate, a second flow channel fixing plate (6), a flow channel guide pipe (1), a flow stabilizing sheet (9), a metering PCB (2), a flow channel top cover (3), an ultrasonic transducer cover (4), a first ultrasonic transducer, a second ultrasonic transducer, a first flow channel upper cover and a second flow channel upper cover (7)
First runner main part with the inside current stabilization piece that all is equipped with of second runner main part, specifically, near the air inlet of first runner main part and second runner main part all is equipped with multilayer current stabilization piece, and current stabilization piece is flaky flat structure, and gaseous behind the multilayer current stabilization piece current stabilization, guaranteed the stability in gas flow field under the complex condition, improved ultrasonic wave measurement's stability, the air inlet of first runner main part and second runner main part is the horn mouth shape.
Sealing rings (10) are arranged between the first flow channel main body and the flow channel guide pipe and between the second flow channel main body and the flow channel guide pipe, so that the sealing performance between the flow channel and the flow channel guide pipe is guaranteed.
A first flow channel upper cover is arranged above the first flow channel main body;
a second runner upper cover is arranged above the second runner main body;
two ultrasonic transducer mounting holes are formed in the upper cover of the second flow channel;
the first flow channel main body is arranged above the second flow channel main body;
the first flow channel fixing plate and the second flow channel fixing plate are arranged above the first flow channel main body and the second flow channel main body;
the ultrasonic transducer cover is used for hermetically fixing the first ultrasonic transducer and the second ultrasonic transducer in the two transducer mounting holes respectively, specifically, the first ultrasonic transducer is a downstream transducer, the second ultrasonic transducer is a upstream transducer, and the flow velocity of the fluid is reflected by measuring the speed difference of the downstream and upstream propagation of ultrasonic signals in the fluid.
The first runner main part first runner fixed plate the second runner main part second runner fixed plate's corresponding position all is equipped with the screw hole, first runner main part first runner fixed plate the second runner main part the second runner fixed plate is through screw fixed connection in order.
The first flow channel fixing plate and the second flow channel fixing plate are fixedly connected through bolts and nuts, and the first flow channel main body, the second flow channel main body, the first flow channel fixing plate and the second flow channel fixing plate are prevented from shaking back and forth.
First runner fixed plate second runner fixed plate also is equipped with the screw hole with runner pipe connected's position, first runner fixed plate, second runner fixed plate and runner pipe are through the screw fixation, specifically, between first runner main part and the runner pipe, all add between second runner main part and the runner pipe and establish the sealing washer after, first runner fixed plate, second runner fixed plate and runner pipe are through the screw fixation.
The metering PCB is arranged inside the second flow channel upper cover and is connected with the second flow channel upper cover through a buckle; the inside location buckle that is equipped with of second runner upper cover, measurement PCB board are fixed in this location buckle.
The runner top cover and the second runner upper cover are fixedly connected through the buckles, and the runner top cover and the second runner upper cover are convenient to install.
Claims (1)
1. Ultrasonic wave gas table double flow channel structure contains first runner main part, second runner main part, first runner fixed plate, second runner fixed plate, runner pipe, steady flow piece, measurement PCB board, runner top cap, ultrasonic transducer lid, first ultrasonic transducer, second ultrasonic transducer, first runner upper cover, second runner upper cover, characterized by:
flow stabilizing sheets are arranged in the first flow channel main body and the second flow channel main body;
sealing rings are arranged between the first runner main body and the runner guide pipe and between the second runner main body and the runner guide pipe;
a first flow channel upper cover is arranged above the first flow channel main body;
a second runner upper cover is arranged above the second runner main body;
two ultrasonic transducer mounting holes are formed in the upper cover of the second flow channel;
the first flow channel main body is arranged above the second flow channel main body;
the first flow channel fixing plate and the second flow channel fixing plate are arranged above the first flow channel main body and the second flow channel main body;
the ultrasonic transducer cover is used for sealing and fixing the first ultrasonic transducer and the second ultrasonic transducer in the two transducer mounting holes respectively;
screw holes are formed in the corresponding positions of the first flow channel main body, the first flow channel fixing plate, the second flow channel main body and the second flow channel fixing plate;
the first flow channel main body, the first flow channel fixing plate, the second flow channel main body and the second flow channel fixing plate are fixedly connected through screws in sequence;
the first flow passage fixing plate and the second flow passage fixing plate are fixedly connected through bolts and nuts;
screw holes are also formed in the positions where the first flow channel fixing plate and the second flow channel fixing plate are connected with the flow channel guide pipe, and the first flow channel fixing plate and the second flow channel fixing plate are fixed with the flow channel guide pipe through screws;
the metering PCB is arranged in the second flow channel upper cover and is connected with the second flow channel upper cover by a buckle;
the runner top cover and the second runner upper cover are fixedly connected through a buckle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222550408.9U CN218524211U (en) | 2022-09-27 | 2022-09-27 | Ultrasonic gas meter double-flow-channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222550408.9U CN218524211U (en) | 2022-09-27 | 2022-09-27 | Ultrasonic gas meter double-flow-channel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218524211U true CN218524211U (en) | 2023-02-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222550408.9U Active CN218524211U (en) | 2022-09-27 | 2022-09-27 | Ultrasonic gas meter double-flow-channel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218524211U (en) |
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2022
- 2022-09-27 CN CN202222550408.9U patent/CN218524211U/en active Active
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