CN216012371U

CN216012371U - Ultrasonic water meter pipe section and ultrasonic water meter comprising same

Info

Publication number: CN216012371U
Application number: CN202122537598.6U
Authority: CN
Inventors: 贺建达; 王鑫璋; 陈伟; 张泽; 邵世敏
Original assignee: Ningbo Water Meter Group Co Ltd
Current assignee: Ningbo Water Meter Group Co Ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-03-11
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses an supersound water gauge pipeline section and contain supersound water gauge of this pipeline section. The ultrasonic water meter comprises an ultrasonic water meter pipe section and a digital display indicating device, wherein the ultrasonic water meter pipe section is provided with a sound wave probe mounting hole extending in the same linear direction, a sound wave probe is mounted, the sound wave probe mounting hole is provided with a fluid sound wave channel and a fixed sound wave channel integrally formed with an ultrasonic water meter pipe section body, one part of a sound wave emission receiving surface of the sound wave probe is in contact with the fixed sound wave channel, the other part of the sound wave emission receiving surface of the sound wave probe is exposed out of the fluid sound wave channel, and a sealing plug is mounted at the rear end of the sound wave probe in a sealing mode. During calibration, sound waves are transmitted from the fixed sound wave channel through the ultrasonic water meter pipe section body, and the constant sound waves transmitted through the fixed sound wave channel and the ultrasonic water meter pipe section body can be used for correcting ultrasonic amplitude intensity and ultrasonic time difference, so that the on-line calibration of the sound wave probe and the timing circuit is realized.

Description

Ultrasonic water meter pipe section and ultrasonic water meter comprising same

Technical Field

The utility model relates to an supersound water gauge field, in particular to supersound water gauge pipeline section and contain supersound water gauge of this pipeline section.

Background

With the gradual popularization of ultrasonic water meters in domestic and foreign users, the stability of the metering precision of the ultrasonic water meter in the process of the whole life cycle is increasingly important. In the online use process of the ultrasonic water meter installed on a water supply and drainage pipeline, due to the aging of the piezoelectric ceramic piece and circuit electronic components, the sound wave signal intensity of the sound wave probe is attenuated to a certain extent along with the time (namely the sound wave amplitude intensity is reduced), and the time difference of sound wave propagation also deviates to a certain extent, so that zero point self-calibration of the online pipeline is required; however, in the prior art, the calibration of the ultrasonic water meter must be performed in a water flow static state, and the calibration cannot be performed in a water flow static state under the condition that the water meter is installed on a pipeline on line.

Disclosure of Invention

The utility model aims to provide an supersound water gauge pipeline section and contain the supersound water gauge of this pipeline section has online zero point self calibration function, can effectively solve the problem among the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an ultrasonic water meter pipe section, wherein connecting flanges are integrally formed at the edges of two ports of the ultrasonic water meter pipe section, the ultrasonic water meter pipe section is provided with sound wave probe mounting holes along the same straight line direction, the sound wave probe mounting holes are cylindrical through holes, and is provided with a sound wave probe, a fluid sound wave channel and a fixed sound wave channel which is integrally formed with the ultrasonic water meter pipe section body, one part of a sound wave transmitting and receiving surface of the sound wave probe is in contact with the fixed sound wave channel, the other part of the sound wave transmitting and receiving surface of the sound wave probe is exposed out of the fluid sound wave channel, ultrasonic signals are synchronously transmitted through the fluid sound wave channel and the fixed sound wave channel, the ultrasonic signals transmitted by the same sound wave probe are synchronously transmitted through the fluid sound wave channel and the fixed sound wave channel, and sound waves transmitted through the ultrasonic water meter pipe section body from the fixed sound wave channel are used for correcting ultrasonic amplitude intensity and ultrasonic time difference. And the rear end of the sound wave probe is hermetically provided with a sealing plug.

Preferably, the fixed acoustic channel and the fluid acoustic channel are complementary semicircular structures.

Preferably, the stationary acoustic channel and the fluid acoustic channel are of complementary fan-shaped configuration.

Preferably, the contact surface of the acoustic wave probe and the fixed acoustic wave channel is encapsulated with an ultrasonic couplant.

Preferably, the angle between the sound wave probe mounting hole and the axis of the ultrasonic water meter pipe section is 45 degrees.

Preferably, evenly distributed flange holes are formed in the surface, close to the edge, of the connecting flange, and the number of the flange holes is ten in total.

The ultrasonic water meter comprises the ultrasonic water meter pipe section and further comprises a digital display indicating device, and the sound wave probes are electrically connected with the digital display indicating device through connecting wires.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses in, when carrying out the calibration, the sound wave propagates through supersound water gauge pipeline section body from fixed sound wave passageway, because supersound water gauge pipeline section body just keeps invariable for the solid, consequently the sound wave that propagates through this passageway is invariable sound wave, can be used to rectify supersound amplitude intensity and supersound time difference's effect, and then realizes the pipeline on-line calibration to sound wave probe and timing circuit.

Drawings

Fig. 1 is a schematic view of an overall structure of an ultrasonic water meter according to the present invention;

fig. 2 is the utility model relates to an ultrasonic water meter pipe section overall structure sketch map.

Fig. 3 is a schematic cross-sectional view of the overall structure of the ultrasonic water meter pipe section of the present invention.

Fig. 4 is a sectional structure view of an ultrasonic water meter pipe section (without a sound wave probe) according to the present invention.

In the figure: 1. an ultrasonic water meter pipe section body; 101. a first fixed acoustic channel; 102. a second stationary acoustic channel; 103. a first acoustic probe mounting hole; 104. a second acoustic probe mounting hole; 105. a first fluid acoustic channel; 106. a second fluid acoustic channel; 2. a first acoustic wave probe; 4. a second sonic probe; 3. a first connecting wire; 9. a second connecting wire; 5. a connecting flange; 501. a flange hole; 6. a first sealing plug; 7. a second sealing plug; 8. and a digital display indicating device.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 and 3, the present invention relates to an ultrasonic water meter pipe section and an ultrasonic water meter including the pipe section. The ultrasonic water meter pipe section body 1 comprises a connecting flange 5, a first sound wave probe mounting hole 103 and a second sound wave probe mounting hole 104 which extend in the same linear direction. The upper end of the first sound wave probe mounting hole 103 is a cylindrical through hole, the first sound wave probe 2 is mounted on the first sound wave probe mounting hole, and the lower end of the first sound wave probe mounting hole is provided with a first fluid sound wave channel 105 and a first fixed sound wave channel 101 which is integrally formed with the ultrasonic water meter pipe section body 1. The lower end of the second sonic probe mounting hole 104 is a cylindrical through hole, the second sonic probe 4 is mounted on the second sonic probe mounting hole, and the upper end of the second sonic probe mounting hole is provided with a second fluid sonic channel 106 and a second fixed sonic channel 102 which is integrally formed with the ultrasonic water meter pipe section body 1. The first acoustic probe 2 and the second acoustic probe 4 are matched. The acoustic wave transmitting/receiving surface of the first acoustic wave probe 2 has a portion in contact with the first fixed acoustic wave channel 101 and another portion exposed to the first fluid acoustic wave channel 105. The acoustic wave transmitting/receiving surface of the second acoustic wave probe 4 is partially in contact with the second fixed acoustic wave channel 102, and partially exposed to the second fluid acoustic wave channel 106.

Furthermore, connecting screw holes 501 are formed in the surface, close to the edge, of the connecting flange 5 of the ultrasonic water meter pipe section, and the number of the connecting screw holes 501 is ten;

it should be noted that an supersound water gauge pipeline section and contain the supersound water gauge of this pipeline section can realize installing the zero point self calibration function on user's pipeline on line. Before the ultrasonic water meter pipe section is used, the ultrasonic water meter pipe section 1 is connected between pipelines of users through the connecting flange 5, and the digital display indicating device 8 is adjusted to a preset user mode. In use, the first acoustic probe 2 and the second acoustic probe 4 of the ultrasonic water meter are both a transmitter and a receiver. In operation, a part of the sound wave transmitting and receiving surfaces of the first sound wave probe 2 and the second sound wave probe 4 contact with water flow, and sound waves pass through the water flow, so that the water flow velocity is measured by utilizing part of the sound waves propagated through the water flow. In addition, another portion of the acoustic wave transmission receiving face of the first acoustic wave probe 2 contacts the first fixed acoustic wave channel 101. Another portion of the acoustic wave transmission-receiving face of the second acoustic wave probe 4 contacts the second fixed acoustic wave channel 102. The sound waves propagate through the first stationary sound wave channel 101, the ultrasonic water meter pipe section body 1 and the second stationary sound wave channel 102. Because the first fixed sound wave channel 101, the ultrasonic water meter pipe section body 1 and the second fixed sound wave channel 102 are integrally formed and are kept constant for a solid, the sound waves transmitted through the channels are constant sound waves and can be used for correcting the action of ultrasonic amplitude intensity and ultrasonic time difference, and further the pipeline on-line calibration of a sound wave probe and a timing circuit is realized.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An ultrasonic water meter pipe section, characterized in that: the ultrasonic water meter pipe section comprises an ultrasonic water meter pipe section body (1) and a connecting flange (5), wherein the ultrasonic water meter pipe section body (1) is provided with a first sound wave probe mounting hole (103) and a second sound wave probe mounting hole (104) which extend along the same straight line direction, the upper end of the first sound wave probe mounting hole (103) is a cylindrical through hole, a first sound wave probe (2) is installed on the cylindrical through hole, the lower end of the first sound wave probe mounting hole (103) is provided with a first fluid sound wave channel (105) and a first fixed sound wave channel (101) which is integrally formed with the ultrasonic water meter pipe section body (1), the lower end of the second sound wave probe mounting hole (104) is a cylindrical through hole, the cylindrical through hole is provided with a second fluid sound wave probe (4), the upper end of the second sound wave probe mounting hole (104) is provided with a second fluid sound wave channel (106) and a second fixed sound wave channel (102) which is integrally formed with the ultrasonic water meter pipe section body (1), the first acoustic wave probe (2) is matched with the second acoustic wave probe (4), one part of an acoustic wave transmitting and receiving surface of the first acoustic wave probe (2) is in contact with the first fixed acoustic wave channel (101), the other part of the acoustic wave transmitting and receiving surface of the second acoustic wave probe (4) is exposed out of the first fluid acoustic wave channel (105), one part of the acoustic wave transmitting and receiving surface of the second acoustic wave probe is in contact with the second fixed acoustic wave channel (102), and the other part of the acoustic wave transmitting and receiving surface of the second acoustic wave probe is exposed out of the second fluid acoustic wave channel (106).

2. An ultrasonic water meter pipe section as defined in claim 1, wherein: the first fixed acoustic channel (101) and the first fluid acoustic channel (105) are complementary semicircular structures, and the second fixed acoustic channel (102) and the second fluid acoustic channel (106) are complementary semicircular structures.

3. An ultrasonic water meter pipe section as defined in claim 1, wherein: the first fixed acoustic channel (101) and the first fluid acoustic channel (105) are of complementary fan-shaped structures, and the second fixed acoustic channel (102) and the second fluid acoustic channel (106) are of complementary fan-shaped structures.

4. An ultrasonic water meter pipe section as defined in claim 1, wherein: an ultrasonic couplant is packaged on the contact surface of the first sound wave probe (2) and the first fixed sound wave channel (101), and an ultrasonic couplant is packaged on the contact surface of the second sound wave probe (4) and the second fixed sound wave channel (102).

5. An ultrasonic water meter pipe section as defined in claim 1, wherein: the angle between the first sound wave probe mounting hole (103) and the second sound wave probe mounting hole (104) and the axis of the ultrasonic water meter pipe section is 45 degrees.

6. An ultrasonic water meter pipe section as defined in claim 1, wherein: evenly distributed flange holes (501) are formed in the surface, close to the edge, of the connecting flange (5), and the number of the flange holes (501) is ten in total.

7. An ultrasonic water meter pipe section as claimed in any one of claims 1 to 6, further comprising: the rear end of the first sound wave probe (2) is provided with a first sealing plug (6) in a sealing mode, and the rear end of the second sound wave probe (4) is provided with a second sealing plug (7) in a sealing mode.

8. An ultrasonic water meter, characterized by: the ultrasonic water meter pipe section and the digital display indicating device (8) comprise the ultrasonic water meter pipe section and the digital display indicating device (8) as claimed in claims 1 to 4, the first sound wave probe (2) is electrically connected with the digital display indicating device (8) through a first connecting lead (3), and the second sound wave probe (4) is electrically connected with the digital display indicating device (8) through a second connecting lead (9).