CN111351537A - Ultrasonic water meter of direct-insert sensor - Google Patents

Ultrasonic water meter of direct-insert sensor Download PDF

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Publication number
CN111351537A
CN111351537A CN202010296958.5A CN202010296958A CN111351537A CN 111351537 A CN111351537 A CN 111351537A CN 202010296958 A CN202010296958 A CN 202010296958A CN 111351537 A CN111351537 A CN 111351537A
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CN
China
Prior art keywords
sensor
shell
water meter
direct
working surface
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Pending
Application number
CN202010296958.5A
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Chinese (zh)
Inventor
叶际村
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Shanghai Divoro Flow Instrument Office
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Shanghai Divoro Flow Instrument Office
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Application filed by Shanghai Divoro Flow Instrument Office filed Critical Shanghai Divoro Flow Instrument Office
Priority to CN202010296958.5A priority Critical patent/CN111351537A/en
Publication of CN111351537A publication Critical patent/CN111351537A/en
Pending legal-status Critical Current

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    • 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
    • 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
    • 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
    • G01F15/14—Casings, e.g. of special material

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention discloses an ultrasonic water meter of a direct-insert sensor, which comprises a water meter, a pipe section for mounting the water meter and a plurality of direct-insert sensors arranged on the pipe section, wherein the direct-insert sensors are symmetrically arranged on two sides of the pipe section and are inserted into the pipe section along the vertical direction of the pipe section, and the front end of the direct-insert sensor is provided with a sensing working surface forming an inclination angle with the flow direction in the pipe. The direct-insert sensor is adopted, the direct-insert type installation pipe inlet section can be realized, and the sensing working surface of the direct-insert type installation pipe inlet section can form an inclination angle with the flow direction in the pipe for measurement, so that the processing and casting difficulty of the pipe section can be reduced, and the industrial automation installation can be conveniently realized.

Description

Ultrasonic water meter of direct-insert sensor
Technical Field
The invention belongs to an ultrasonic water meter, and particularly relates to an ultrasonic water meter of a direct-insert sensor.
Background
Ultrasonic water meter sensor in the market today all uses oblique plug-in sensor usually, as shown in fig. 1, fig. 2, this needs to be at 1 outer wall casting of pipeline section or the welding installation convex seat 2 of integral type, however, if adopt the welding mode, then two installation convex seats 2 welding degree of difficulty are big, and the symmetry precision is difficult to guarantee, if adopt the casting mode, then the processing casting degree of difficulty is also big, and 2 departments meat of installation convex seat in the outer wall are many, have a great deal of problems such as sand eye, gas pocket easily. In addition, the inclined insertion type has the defects of difficult installation and difficult realization of industrial automatic installation.
Disclosure of Invention
The invention aims to solve the technical problem of providing an ultrasonic water meter of a direct-insert sensor, which is provided with the sensor of a direct-insert water pipe along the pipe diameter, can solve the problems of casting and processing of a water meter pipe section and is greatly convenient for assembly and full-automatic design.
In order to solve the technical problems, the invention adopts the following technical scheme:
the ultrasonic water meter of the direct-insert sensor comprises a water meter, a pipe section for mounting the water meter and a plurality of direct-insert sensors arranged on the pipe section, wherein the direct-insert sensors are symmetrically arranged on two sides of the pipe section and are inserted into the pipe section along the vertical direction of the pipe section, and the front end of the direct-insert sensor is provided with a sensing working surface which forms an inclination angle with the flow direction in the pipe.
The direct-insertion sensor comprises a shell with a T-shaped axial cross section, a top column and a pressing block, a sensing working face is arranged on one side of the front end of the shell, a sensor chip is attached to the inner side face, the rear end of the shell is open, a cavity is formed in the shell, the top column is inserted into the cavity of the shell and is pressed on the sensor chip through an installation inclined plane matched with the sensing working face at the bottom, and the upper end of the top column is sealed in the shell through the pressing block.
The sensor chip is packaged on the installation inclined plane, inserted into the cavity of the shell through the top column and attached to the inner side face of the sensing working face.
The other side of the bottom of the shell is also provided with a stop block which is arranged opposite to the sensing working surface.
The top of the pressing block is provided with a kidney-shaped groove, and a thimble is arranged in the groove.
The direct-insertion sensor comprises a shell with a T-shaped axial section and a cylindrical sensor inner core part packaged with a sensor chip, wherein a sensing working surface is arranged on one side of the front end of the shell, an installation concave cavity matched with the sensor inner core part is arranged in the sensing working surface, the shell is of a two-half structure and divides the sensing working surface and the installation concave cavity into two halves, and the sensor inner core part is arranged in the installation concave cavity, the front end surface of the sensor inner core part is flush with the sensing working surface, and the sensor inner core part is fixed by ultrasonic welding after the two halves of the shell are folded.
The rear end of the sensor inner core part is provided with a circle of clamping edge, and a clamping groove matched with the clamping edge is arranged in the mounting concave cavity.
The direct-insertion sensor comprises a shell with a T-shaped axial cross section and a cylindrical sensor inner core part packaged with a sensor chip, wherein a sensing working surface is arranged on one side of the front end of the shell, a mounting hole is formed in the sensing working surface, an installation cavity which is matched with the sensor inner core part and forms a 90-degree included angle with the sensing working surface is formed in the hole, a circle of elastic clamping edge is arranged at the rear end of the sensor inner core part, a clamping groove which is matched with the elastic clamping edge is formed in the rear end of the installation cavity, the sensor inner core part is embedded into the installation cavity from the mounting hole and is fixed in the clamping groove through the elastic clamping edge, and the front end face of the sensor inner core part is flush with the sensing.
And a groove for mounting a sealing ring is arranged on the horizontal plane of the step of the T-shaped shell.
And two sides of the pipe section are respectively provided with symmetrical mounting hole seats for the direct insertion of the direct insertion sensors.
The ultrasonic water meter adopting the direct-insertion sensor has the following advantages:
1. the direct-insert sensor with the sensing working surface with the inclination angle can be used for direct-insert installation, so that the installation hole seat on the pipe section can be very small, the processing and casting difficulty is low, the meat is less, and the problems of sand holes, air holes and the like are reduced.
2. The direct insertion type sensor is adopted, so that the installation is simple, and the industrial automation installation can be conveniently realized.
3. The sensor chip is packaged in advance, and the effects of independent packaging and testing are achieved.
Drawings
The invention is described in detail below with reference to the following figures and detailed description:
FIG. 1 is a schematic illustration of a prior art angled-in installation.
Fig. 2 is a schematic top view of a prior art angled-in installation.
Fig. 3 is a schematic diagram of the construction of an ultrasonic water meter of the in-line sensor of the present invention.
Fig. 4 is a schematic sectional view taken along line G-G in fig. 3.
Fig. 5 is a schematic sectional view taken along line H-H in fig. 3.
Fig. 6 is a schematic perspective view of an in-line sensor according to embodiment 1 of the present invention.
Fig. 7 is a schematic top view of the in-line sensor of fig. 6.
Fig. 8 is a schematic sectional view taken along line G-G in fig. 7.
Fig. 9 is a schematic structural view of an in-line sensor of embodiment 2 of the present invention.
Fig. 10 is a schematic top view of the in-line sensor of fig. 9.
Fig. 11 is an exploded schematic view of the in-line sensor of fig. 9.
Fig. 12 is a schematic sectional view taken along line a-a in fig. 10.
Fig. 13 is a schematic top view of an in-line sensor of embodiment 3 of the present invention.
Fig. 14 is a schematic sectional view taken along line a-a in fig. 13.
Fig. 15 is an enlarged schematic view of a portion B in fig. 14.
Detailed Description
The ultrasonic water meter of the in-line sensor of the present invention is shown in fig. 3-5, and as well as the water meter (not shown in the figure, installed in the part a in fig. 3) and the pipe section 1 for installing the water meter, as well as the prior art, the ultrasonic water meter also comprises a plurality of in-line sensors 10 installed on the pipe section 1, wherein the in-line sensors 10 are symmetrically installed on both sides of the pipe section 1 and inserted into the pipe section 1 along the vertical direction of the pipe section 1, and the front ends of the in-line sensors 10 have sensing working surfaces forming an inclination angle (shown as an included angle of 45 ° in fig. 4, and corresponding angles can be designed as required) with the flow direction in the. The in-line sensor 10 may take, but is not limited to, the following three forms:
embodiment 1, as shown in the figure, this in-line sensor 10 includes casing 3, fore-set 11 and briquetting 12 that the axial cross-section is the T shape, sensing working face 6 locates casing 3 front end one side and is the contained angle such as 45 degrees with casing 3 axial, and medial surface facing is equipped with sensor chip 13, and casing 3 rear end opening has cavity 14 inside, and cavity 14 bottom leads to sensing working face 6, and fore-set 11 inserts casing 3 cavity 14 and is the installation inclined plane 15 that is the phase-match with sensing working face 6 through the bottom and presses on sensor chip 13. Preferably, the sensor chip 13 can be packaged on the installation inclined plane 15, the top pillar 11 is inserted into the cavity 14 of the shell 3 and is attached to the inner side of the sensing working surface 6, so that the sensor chip 13 and the inner side of the sensing working surface 6 are attached at the same angle, when the direct-insertion sensor 10 is directly inserted into the pipe section 1, the sensor chip 13 and the flow direction of the pipe form an inclination angle of 45 degrees for detection, and the upper end of the top pillar 11 is sealed and covered in the shell 3 through the pressing block 12 matched with the rear end opening of the shell 3. The other side of the bottom of the shell 3 is also provided with a stop block 16 which is arranged opposite to the sensing working surface 6, impurities in water in the tank can be stopped at the outer side through the stop block 16, and the detection effect is prevented from being influenced by the accumulation of the impurities at the sensing working surface 6. Of course, the stop 16 and the sensing face 6 may be integrally formed with the housing 3. In addition, a waist-shaped groove 17 is formed in the top of the pressing block 12, a thimble 18 is arranged in the groove, and wiring can be conveniently conducted through the thimble 18. The casing 3 is provided with a groove 8 for mounting a sealing ring on the horizontal plane of the T-shaped step, and the outer edge of the upper end of the casing 3 is also provided with a positioning boss 9, so that the installation and the positioning are convenient.
Embodiment 2, as shown in the figure, compared with embodiment 1, the in-line sensor 10 also includes a casing 3 with a T-shaped axial cross section, except that it also includes a cylindrical sensor core component 4 packaged with a sensor chip, the casing 3 is also provided with a groove 5 for installing a sealing ring on the horizontal plane of the step, a sensing working surface 6 is arranged at the front end of the bottom of the casing 3 and forms an included angle of 45 degrees with the axial direction of the casing, an installation cavity 7 matched with the sensor core component 4 is arranged in the sensing working surface 6, meanwhile, the casing 3 is designed into a two-half structure and divides the sensing working surface 6 and the installation cavity 7 into two halves, then the sensor core component 4 is arranged in the installation cavity 7, so that the axis of the sensor core component 4 is perpendicular to the sensing working surface 6, the front end surface of the sensor core component 4 is level with the sensing working surface 6, the dashed arrow in fig. 6 is the measuring direction, and is fixed in a united state by ultrasonic welding between the two halves of the housing 3. Preferably, the upper end of the sensor core component 4 is provided with a circle of clamping edge 8, a clamping groove matched with the clamping edge 8 is formed in the installation cavity 7, and the sensor core component 4 is installed in the clamping groove (not shown) through the clamping edge 8 for positioning, so that the sensor core component 4 can rotate in the installation cavity 7 and cannot move or turn. The outer edge of the upper end of the shell 3 is also provided with a positioning boss 9, so that the installation and the positioning are convenient.
Embodiment 3, as shown in the figure, compared with embodiment 2, the sensor also includes a casing 3 with a T-shaped axial cross section and a cylindrical sensor core component 4 packaged with a sensor chip, the sensing working surface 6 is arranged at the front end of the bottom of the casing 3 and forms an included angle of 45 degrees with the axial direction of the casing 3, the sensing working surface 6 is provided with a mounting hole, and an installation cavity matched with the sensor core component 4 and forming an included angle of 90 degrees with the sensing working surface is arranged in the mounting hole, the difference is that the sensor core component 4 is directly embedded into and fixed in the installation cavity from the mounting hole, and the front end surface of the sensor core component 4 is flush with the sensing working surface. Preferably, the upper end of the sensor core part 4 is provided with a ring of elastic clamping edges 8 made of polyether ether ketone (PEEK), the top of the installation cavity is provided with a clamping groove 81 matched with the elastic clamping edges 8, and the sensor core part 4 is fixed in the clamping groove 81 through the elastic clamping edges 8 when being embedded.
Due to the adoption of the direct-insertion sensor 10 with the structure, the two sides of the pipe section 1 are only provided with the symmetrical mounting hole seats 20 for the direct-insertion of the direct-insertion sensor 10, and the mounting hole seats 20 are internally provided with a plurality of straight insertion holes which form 90-degree included angles with the flow direction in the pipe. When the corresponding direct-insert sensor 10 is directly inserted, the sensing working surface 6 and the flow direction in the pipe form a required included angle for detection, and then an end cover is arranged behind the mounting hole seat 20, so that the direct-insert sensor 10 can be fixed in the mounting hole seat 20.
In summary, the ultrasonic water meter of the in-line sensor 10 of the present invention adopts the in-line sensor 10 with the sensing working surface, so that the installation is convenient, the processing and casting difficulty is small, and the industrial automation installation can be conveniently realized.
However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.

Claims (10)

1. The utility model provides an ultrasonic water meter of direct plug-in transducer, includes the water gauge, is used for installing the pipeline section of water gauge, its characterized in that: the pipeline comprises a pipeline section and is characterized by further comprising a plurality of pairs of straight-inserting sensors arranged on the pipeline section, wherein the straight-inserting sensors are symmetrically arranged on two sides of the pipeline section and are inserted into the pipeline section along the vertical direction of the pipeline section, and the front end of each straight-inserting sensor is provided with a sensing working surface which forms an inclination angle with the flow direction in the pipeline.
2. An ultrasonic water meter with an in-line sensor as set forth in claim 1, wherein: the direct-insertion sensor comprises a shell with a T-shaped axial cross section, a top column and a pressing block, a sensing working face is arranged on one side of the front end of the shell, a sensor chip is attached to the inner side face, the rear end of the shell is open, a cavity is formed in the shell, the top column is inserted into the cavity of the shell and is pressed on the sensor chip through an installation inclined plane matched with the sensing working face at the bottom, and the upper end of the top column is sealed in the shell through the pressing block.
3. An ultrasonic water meter with an in-line sensor as set forth in claim 2, wherein: the sensor chip is packaged on the installation inclined plane, inserted into the cavity of the shell through the top column and attached to the inner side face of the sensing working face.
4. An ultrasonic water meter with an in-line sensor as set forth in claim 2, wherein: the other side of the bottom of the shell is also provided with a stop block which is arranged opposite to the sensing working surface.
5. An ultrasonic water meter with an in-line sensor as set forth in claim 2, wherein: the top of the pressing block is provided with a kidney-shaped groove, and a thimble is arranged in the groove.
6. An ultrasonic water meter with an in-line sensor as set forth in claim 1, wherein: the direct-insertion sensor comprises a shell with a T-shaped axial section and a cylindrical sensor inner core part packaged with a sensor chip, wherein a sensing working surface is arranged on one side of the front end of the shell, an installation concave cavity matched with the sensor inner core part is arranged in the sensing working surface, the shell is of a two-half structure and divides the sensing working surface and the installation concave cavity into two halves, and the sensor inner core part is arranged in the installation concave cavity, the front end surface of the sensor inner core part is flush with the sensing working surface, and the sensor inner core part is fixed by ultrasonic welding after the two halves of the shell are folded.
7. An ultrasonic water meter with an in-line sensor as set forth in claim 1, wherein: the rear end of the sensor inner core part is provided with a circle of clamping edge, and a clamping groove matched with the clamping edge is arranged in the mounting concave cavity.
8. An ultrasonic water meter with an in-line sensor as set forth in claim 1, wherein: the direct-insertion sensor comprises a shell with a T-shaped axial cross section and a cylindrical sensor inner core part packaged with a sensor chip, wherein a sensing working surface is arranged on one side of the front end of the shell, a mounting hole is formed in the sensing working surface, an installation cavity which is matched with the sensor inner core part and forms a 90-degree included angle with the sensing working surface is formed in the hole, a circle of elastic clamping edge is arranged at the rear end of the sensor inner core part, a clamping groove which is matched with the elastic clamping edge is formed in the rear end of the installation cavity, the sensor inner core part is embedded into the installation cavity from the mounting hole and is fixed in the clamping groove through the elastic clamping edge, and the front end face of the sensor inner core part is flush with the sensing.
9. An ultrasonic water meter with an in-line sensor as claimed in claim 2, 6 or 8, wherein: and a groove for mounting a sealing ring is arranged on the horizontal plane of the step of the T-shaped shell.
10. An ultrasonic water meter with an in-line sensor as set forth in claim 1, wherein: and two sides of the pipe section are respectively provided with symmetrical mounting hole seats for the direct insertion of the direct insertion sensors.
CN202010296958.5A 2020-04-15 2020-04-15 Ultrasonic water meter of direct-insert sensor Pending CN111351537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010296958.5A CN111351537A (en) 2020-04-15 2020-04-15 Ultrasonic water meter of direct-insert sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010296958.5A CN111351537A (en) 2020-04-15 2020-04-15 Ultrasonic water meter of direct-insert sensor

Publications (1)

Publication Number Publication Date
CN111351537A true CN111351537A (en) 2020-06-30

Family

ID=71193467

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010296958.5A Pending CN111351537A (en) 2020-04-15 2020-04-15 Ultrasonic water meter of direct-insert sensor

Country Status (1)

Country Link
CN (1) CN111351537A (en)

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