CN216668856U

CN216668856U - Filtering type ultrasonic flow channel device

Info

Publication number: CN216668856U
Application number: CN202220188839.2U
Authority: CN
Inventors: 王向乔; 郑章勇
Original assignee: Chongqing Qiaosong Information Technology Co ltd
Current assignee: Chongqing Qiaosong Information Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-03
Anticipated expiration: 2032-01-24

Abstract

The utility model relates to the field of ultrasonic gas meter runners, in particular to a filtering type ultrasonic runner device which comprises a runner, wherein a sound channel is arranged in the runner, an air inlet and an air outlet are respectively arranged at two ends of the runner, a first transducer hole and a second transducer hole are arranged on the runner, and an uneven filtering structure is arranged on the inner wall of the runner. This application is owing to be provided with the filtering structure on the inner wall of runner, filters the clutter of scattering through unevenness's filtering after the transmitter transmission sound wave back like this, and the clutter can weaken gradually under filtering structure's multiple reflection, and when reacing the receiver, the clutter signal has been can not received to the receiver to can not influence the measuring result.

Description

Filtering type ultrasonic flow channel device

Technical Field

The utility model relates to the field of ultrasonic gas meter runners, in particular to a filtering type ultrasonic runner device.

Background

The ultrasonic gas meter is a novel gas meter which measures the gas consumption by using a modern microelectronic technology, a modern sensing technology and an intelligent IC card technology and conducts data remote transmission and settlement transaction. Compared with the traditional diaphragm gas meter, the ultrasonic gas meter has the characteristics of small volume and high precision, the flow signal acquisition is fully electronic, mechanical parts are not worn, and the service life is longer.

The ultrasonic transducer is arranged on the flow channel, the actual path of the ultrasonic signal transmitted from the ultrasonic transducer transmitter to the ultrasonic receiver is the sound channel, and ideally, the ultrasonic wave transmitted by the ultrasonic transducer only transmits in the sound channel. However, the inner wall of the existing ultrasonic sound channel is regular and straight, U-shaped or V-shaped, the ultrasonic transmitter transmits sound waves, clutter beyond the range of the sound channel exists in the transmission process, and the clutter is reflected when being transmitted in the straight sound channel, so that the transmission path is short, the clutter intensity is not weakened greatly, the clutter can be received by the ultrasonic receiver, and the interference to the flow velocity of the measured gas is large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a filtering type ultrasonic flow channel device aiming at the problems that the conventional sound channel is regular and straight, U-shaped or V-shaped, the propagation path of noise generated by an ultrasonic generator cannot be prolonged, and the noise signal received by an ultrasonic receiver is stronger, so that the measurement structure is influenced and the measurement is inaccurate.

In order to realize the purpose of the utility model, the utility model provides the following technical scheme:

the utility model provides a filtering type ultrasonic wave runner device, includes the runner, be equipped with the sound channel in the runner, the both ends of runner are equipped with air inlet and gas outlet respectively, be equipped with first transducer hole and second transducer hole on the runner, be equipped with unevenness's filtering structure on the inner wall of runner.

Preferably, the cross section of the filter structure is in a semicircular wave shape.

Preferably, the cross section of the filter structure is triangular.

Preferably, the cross section of the filter structure is a trapezoid.

Preferably, the filter structures on two sides of the flow channel are the same, and the filter structure protruding on one side is opposite to the filter structure protruding on the other side.

Compared with the prior art, the utility model has the beneficial effects that: this application is owing to be provided with unevenness's filtering structure on the inner wall of runner, and the sound channel that consequently forms is not regular, and the clutter of diffusion is to the transmission through unevenness between the filtering structure, has just prolonged the propagation path of clutter, reduces the transmission intensity of clutter, and after the clutter transmits the receiver, after the controller through in the gas table calculates, just can effectively filter the clutter of interference, improves ultrasonic flow measurement's the degree of accuracy and precision.

Description of the drawings:

fig. 1 is a schematic structural diagram of a filtering type ultrasonic flow channel device provided in the present application;

FIG. 2 is a left side view of FIG. 1;

fig. 3 is a schematic cross-sectional view of fig. 1.

The mark in the figure is: 1-flow channel, 11-gas inlet, 12-gas outlet, 13-first transducer hole, 14-second transducer hole, 15-filtering structure, 21-transmitter, 22-receiver, 3-sound channel.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the present application provides a filtering type ultrasonic flow channel device, including flow channel 1, be equipped with unevenness's filtering structure 15 on flow channel 1's the inner wall, flow channel 1's inner wall just forms the sound channel 3 that supplies the ultrasonic wave to propagate with filtering structure 15, flow channel 1's both ends are equipped with air inlet 11 and gas outlet 12 respectively.

A first transducer hole 13 and a second transducer hole 14 are arranged on the flow channel 1, a transmitter 21 of the ultrasonic transducer is arranged in the first transducer hole 13, and a receiver 22 is arranged in the second transducer hole 14.

The filtering type ultrasonic flow channel device can be applied to the installation modes of direct-injection type, U-shaped reflection type and V-shaped reflection type ultrasonic transducers.

The flow channel 1 is provided with the first transducer hole 13 and the second transducer hole 14 without the filter structure 15 on the side walls. That is, as shown in fig. 1 and 2, the side walls of the two sides where the transducers are installed are not provided with the filter structures 15, and the two sides where the transducers are not installed are provided with the filter structures 15.

As shown in fig. 2, the filter structures 15 on two sides of the flow channel 1 are the same, and the filter structure 15 protruding from one side is opposite to the filter structure 15 protruding from the other side. That is, the filter structures 15 on both sides of the previous time are the same, the position of the upper protrusion is the same as that of the lower protrusion, and the cross-sectional area of the flow channel 1 is reduced where the two protrusions are opposite.

The cross section of the filtering structure 15 is a semi-circle wave shape, a triangle shape or a trapezoid shape. A plurality of uneven filter structures 15 are arranged in the flow channel 1, and as shown in fig. 1, in this embodiment, 3 semicircular wave-shaped filter structures 15 are arranged in the flow channel 1.

In the using process, as shown in fig. 3, the receiver 22 emits a sound beam, the direct sound beam is a useful sound beam, and is directly received by the receiver 22, because the sound wave has scattering property, the scattered clutter is filtered by multiple reflections of the filter structure 15, the propagation path of the clutter is prolonged, so that the intensity of the clutter is gradually weakened, and after the filtered clutter reaches the receiver 22, the clutter is calculated by a controller arranged in the gas meter, so that the interference clutter can be effectively filtered, and the accuracy and precision of the ultrasonic flow measurement are improved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a filtering type ultrasonic wave runner device, its characterized in that, includes runner (1), be equipped with sound channel (3) in runner (1), the both ends of runner (1) are equipped with air inlet (11) and gas outlet (12) respectively, be equipped with first transducer hole (13) and second transducer hole (14) on runner (1), be equipped with unevenness's filtering structure (15) on the inner wall of runner (1).

2. The filtering ultrasonic flow channel device according to claim 1, wherein the cross section of the filtering structure (15) is a semi-circular wave shape.

3. The filtering ultrasonic flow channel device according to claim 1, wherein the cross-section of the filtering structure (15) is triangular.

4. The filtering ultrasonic flow channel device according to claim 1, wherein the cross-section of the filtering structure (15) is trapezoidal.

5. The filtering type ultrasonic flow channel device according to claim 1, wherein the filtering structures (15) on both sides of the flow channel (1) are the same, and wherein the filtering structure (15) protruding from one side is disposed opposite to the filtering structure (15) protruding from the other side.