CN111595398A - Rectification structure and method of ultrasonic measuring device - Google Patents

Abstract

The invention relates to a rectification structure and a rectification method of an ultrasonic measuring device, and belongs to the technical field of acoustics and sensing. The technical scheme is as follows: the ultrasonic measuring device is arranged at the end part of the ultrasonic measuring device, and comprises shells at two ends and a measuring section in the middle; the rectifying structure comprises a notch (1) and a convex edge (7), wherein the notch (1) is arranged at the end part of the shell, the convex edge (7) is longitudinally arranged on the inner wall of the end part of the shell, the notch (1) and the convex edge (7) are arranged on the circumference of the end part of the shell in a staggered manner, and the shell, the notch (1) and the convex edge (7) are integrally formed. The invention has the beneficial effects that: from taking the rectification structure, with casing integrated into one piece, need not set up the rectification structure in addition, reduced the interference that the disturbance brought.

Description

A rectification structure and method of an ultrasonic measuring device

technical field

The invention relates to a rectification structure and method of an ultrasonic measuring device, which is used for measuring flowing medium, especially an ultrasonic measuring structure of liquid or gas, and belongs to the technical fields of acoustics and sensing.

Background technique

At present, the existing ultrasonic flow sensor structures, especially small-diameter ultrasonic flow sensors (with an inner diameter of less than 40 mm) usually use a reflector to reflect ultrasonic waves for measurement. The time difference of the process can be calculated to calculate the flow rate information. When the measured fluid is disturbed, it will cause the center of the flow velocity to shift, such as the vortex turbulence or velocity profile turbulence specified in the water meter standard. If the ultrasonic path reflected by the reflector does not pass through the center of the fluid flow velocity, so The measured data will be distorted, resulting in measurement errors of the water meter. The usual way to face this problem is: 1. Install a rectification device upstream of the water meter, such as a rectifier, so that the fluid can first stabilize the flow rate center on the ultrasonic measurement path before entering the water meter. Because the rectification structure of the ultrasonic measurement device needs to be In addition, if it is set separately, the structure is more complicated, and the processing and assembly are also very complicated. 2. Enlarge the reflector so that the reflected ultrasonic area will cover all the measured fluid, but this will greatly increase the pressure loss of the water meter.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a rectification structure and method for an ultrasonic measuring device, which has a self-contained rectification structure and is integrally formed with the casing, without the need for additional rectification structure, with simple structure, convenient assembly, reliable positioning, fewer components, and less pressure loss. It is small and solves the problems existing in the background technology.

The technical scheme of the present invention is:

A rectification structure for ultrasonic measurement is arranged at the end of an ultrasonic measurement device, and the ultrasonic measurement device includes a casing at both ends and a measurement section in the middle; the rectification structure includes a notch and a convex ridge, and the notch is opened in the casing. The end of the casing, the convex ridge is longitudinally arranged on the inner wall of the end of the shell, the notch and the convex ridge are staggered on the circumference of the end of the shell, and the casing is integrally formed with the notch and the convex ridge; the shape of the notch is arbitrary , including strip grooves, U-shaped grooves, V-shaped openings, semicircular openings, etc. The number of the notches is arbitrary, and the plurality of notches are arranged at the end of the casing, and the shapes of the plurality of notches may be the same or different. The cross-sectional shape of the raised flute is arbitrary, including rectangle, square, trapezoid, semicircle and the like. The protruding ridges are integrally formed with the shell, and the number of the protruding ridges is arbitrary, a plurality of protruding ridges are arranged on the inner wall of the end portion of the housing, and the shapes of the plurality of protruding ridges may be the same or different.

A rectification structure of an ultrasonic measuring device is arranged at the end of the ultrasonic measuring device, and the ultrasonic measuring device comprises a casing at both ends and a measuring section in the middle, and the rectifying structure is provided with a notch 1 at the end of the casing; The shape of the mouth is arbitrary, including strip grooves, U-shaped grooves, V-shaped openings, semicircular openings, and the like. The number of the notches is arbitrary, and the plurality of notches are arranged at the end of the casing, and the shapes of the plurality of notches may be the same or different.

A rectification structure for ultrasonic measurement is arranged at the end of an ultrasonic measurement device, and the ultrasonic measurement device comprises a casing at both ends and a measurement section in the middle; the rectification structure is that the inner wall of the end of the casing is provided with longitudinal convex corrugations; The cross-sectional shape of the raised flute is arbitrary, including rectangle, square, trapezoid, semicircle and the like. The protruding ridges are integrally formed with the shell, and the number of the protruding ridges is arbitrary, a plurality of protruding ridges are arranged on the inner wall of the end portion of the housing, and the shapes of the plurality of protruding ridges may be the same or different.

The following are the same parts of each embodiment:

The housing of the ultrasonic measuring device is provided with a reflector, and the two sides of the reflector are connected with the housing and are integrally formed with the housing; the housing and the measuring section are both cylindrical, and the cross-sectional shape of the inner hole of the measuring section is elliptical Or similar to an ellipse, two housings and a measuring segment are combined with each other, and the reflection direction of the reflector in the housing is consistent with the centerline direction of the inner hole of the measuring segment.

The shape of the reflector in the housing is consistent with the ellipse or similar oval shape of the inner hole of the measuring section; the shape of the reflector may also be inconsistent with the ellipse or similar oval shape of the inner hole of the measuring section, such as a rectangular reflector, Perfect round mirrors, etc. The two sides of the reflector are connected with the inner wall of the casing, and are integrally formed with the casing.

The measuring section is a reduced part located in the middle of the two shells, and the cross-sectional area of the inner hole of the measuring section is smaller than that of the shell; the water-passing part inside the measuring section is an elliptical hole or a similar ellipse, and the measuring section is a separate part , the two ends of the measurement section are combined with two shells to form an ultrasonic measurement structure; the combination methods include: buckle, bonding, plugging, snapping and the like.

The integral molding is injection molding integral molding.

A rectification method of an ultrasonic measuring device, using the above-mentioned rectifying device, comprises the following steps:

The ultrasonic measuring device includes a casing at both ends and a measuring section in the middle. Notches are provided at the ends of the casing, and longitudinal convex ridges are arranged on the inner wall of the end of the casing. The flutes are arranged staggered on the circumference of the end of the casing, and the casing is integrally formed with the notch and the convex flute; the rectification structure is located upstream and downstream of the ultrasonic measuring device, and rectifies the fluid entering the ultrasonic measuring device to ensure a stable flow state.

The main innovation of the present invention is that the prior art requires additional rectification structure on the casing, and the present invention directly integrally forms the end of the casing into a rectification structure without the need for additional rectification structure, which is simple and easy to implement and has a good effect.

The beneficial effects of the present invention are as follows: the self-contained rectifying structure is integrally formed with the casing, and no additional rectifying structure is required, thereby reducing the disturbance caused by the disturbance.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional structure diagram of Embodiment 1 of the present invention;

3 is a schematic structural diagram of a mirror according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a reduced part of an embodiment of the present invention;

5 is a schematic diagram of the corresponding relationship between a reflector and a reduced part of the inner hole according to an embodiment of the present invention;

6 is a schematic structural diagram of Embodiment 2 of the present invention;

7 is a schematic structural diagram of Embodiment 3 of the present invention;

In the figure: rectifier structure one 1, housing one 2, sensor mounting hole one 3, reduced part 4, housing two 5, sensor mounting hole two 6, sensor mounting hole two 7, mirror two 8, elliptical hole 9, reflection Mirror one 10.

Detailed ways

The present invention will be further illustrated by the following examples and accompanying drawings.

A rectification structure for ultrasonic measurement is arranged at the end of an ultrasonic measurement device, and the ultrasonic measurement device includes a casing at both ends and a measurement section in the middle; the rectification structure includes a notch 1 and a convex ridge 7, and the notch 1 opens At the end of the casing, the convex ridge 7 is longitudinally arranged on the inner wall of the end of the casing, the notch 1 and the convex ridge 7 are staggered on the circumference of the end of the casing, and the casing is integrally formed with the notch 1 and the convex ridge 7; The shape of the notch is arbitrary, including a strip-shaped groove, a U-shaped groove, a V-shaped opening, a semicircular opening, and the like. The number of the notches is arbitrary, and the plurality of notches are arranged at the end of the casing, and the shapes of the plurality of notches may be the same or different. The cross-sectional shape of the raised flute is arbitrary, including rectangle, square, trapezoid, semicircle and the like. The raised ridges are integrally formed with the casing, the number of the raised ridges is arbitrary, a plurality of raised ridges are arranged on the inner wall of the end portion of the casing, and the shapes of the plurality of raised ridges may be the same or different.

Embodiment 1, referring to Figures 1 and 2, the rectification structure includes a notch 1 and a convex ridge 7, the notch 1 is opened at the end of the casing, and the convex ridge 7 is longitudinally arranged on the inner wall of the end of the casing, The notches 1 and the convex ridges 7 are arranged in a staggered manner on the circumference of the end of the casing, and the casing is integrally formed with the notches 1 and the convex ridges 7; The circumference of the end of the body is evenly distributed, and the cross-sectional shape of the convex ridges 7 is rectangular, and the number is four, which are evenly distributed along the circumference of the inner wall of the end of the casing, and the four notches and the four convex grooves are staggered on the circumference of the end of the casing. layout.

A rectification structure of an ultrasonic measuring device is arranged at the end of the ultrasonic measuring device, and the ultrasonic measuring device comprises a casing at both ends and a measuring section in the middle, and the rectifying structure is provided with a notch 1 at the end of the casing; The shape of the mouth is arbitrary, including strip grooves, U-shaped grooves, V-shaped openings, semicircular openings, and the like. The number of the notches is arbitrary, and the plurality of notches are arranged at the end of the casing, and the shapes of the plurality of notches may be the same or different.

Embodiment 2, referring to FIG. 6 , the rectification structure is provided with a notch 1 at the end of the casing; in this embodiment, the notch of the rectification structure is a U-shaped groove, and the number is four, along the end of the casing. Evenly distributed around the circumference.

A rectification structure for ultrasonic measurement, which is arranged at the end of the ultrasonic measurement device, and the ultrasonic measurement device includes a casing at both ends and a measurement section in the middle; the rectification structure is that the inner wall of the end of the casing is provided with longitudinal convex corrugations 7 . ; The cross-sectional shape of the convex ridge is arbitrary, including rectangle, square, trapezoid, semicircle and so on. The protruding ridges are integrally formed with the shell, and the number of the protruding ridges is arbitrary, a plurality of protruding ridges are arranged on the inner wall of the end portion of the housing, and the shapes of the plurality of protruding ridges may be the same or different.

Embodiment 3, referring to FIG. 7 , the rectifying structure is that the inner wall of the end portion of the casing is provided with a longitudinal convex ridge 7; The inner wall of the end of the shell is evenly distributed on the circumference.

The following are the same parts of each embodiment:

The housing of the ultrasonic measuring device is provided with a reflector, and the two sides of the reflector are connected with the housing and are integrally formed with the housing; the housing and the measuring section are both cylindrical, and the cross-sectional shape of the inner hole of the measuring section is elliptical Or similar to an ellipse, two housings and a measuring segment are combined with each other, and the reflection direction of the reflector in the housing is consistent with the centerline direction of the inner hole of the measuring segment.

The shape of the reflector in the housing is consistent with the ellipse or similar oval shape of the inner hole of the measuring section; the shape of the reflector may also be inconsistent with the ellipse or similar oval shape of the inner hole of the measuring section, such as a rectangular reflector, Perfect round mirrors, etc. The two sides of the reflector are connected with the inner wall of the casing, and are integrally formed with the casing.

The number of the housings is two, which are respectively the housing one 2 and the housing two 5; the number of the rectification structures is two, which are respectively the rectifying structure one and the rectifying structure two; the number of the reflecting mirrors is two, respectively. Reflector one 10 and reflector two 8; the housing one 2 is provided with a sensor mounting hole 3, a rectifier structure one and a reflector one 10, and the housing two 5 is provided with a sensor mounting hole 6, a rectifier structure two and a reflector Mirror II 8.

The measuring section is a narrowed part 4 located in the middle of the two shells, and the cross-sectional area of the inner hole of the measuring section is smaller than the cross-sectional area of the inner hole of the shell; the water-passing part inside the measuring section is an elliptical hole or similar ellipse, and the embodiment is an elliptical hole 9. The measuring section is a separate part, and the two ends of the measuring section are combined with two shells to form an ultrasonic measuring structure;

The integral molding is injection molding integral molding.

A rectification method of an ultrasonic measuring device, using the above-mentioned rectifying device, comprises the following steps:

The ultrasonic measuring device includes a casing at both ends and a measuring section in the middle. A notch 1 is provided at the end of the casing, and a longitudinal ridge 7 is arranged on the inner wall of the end of the casing. The notch 1 and the ridge 7 constitute a rectification structure including, The notch 1 and the convex ridge 7 are staggered on the circumference of the end of the casing, and the casing is integrally formed with the notch 1 and the convex ridge 7; the rectification structure is located upstream and downstream of the ultrasonic measuring device, and rectifies the fluid entering the ultrasonic measuring device. , to ensure smooth flow.

The main innovation of the present invention is that the prior art requires additional rectification structure on the casing, and the present invention directly integrally forms the end of the casing into a rectification structure without the need for additional rectification structure, which is simple and easy to implement and has a good effect.

Claims (7)

1. A rectification structure of an ultrasonic measuring device, characterized in that: it is arranged at the end of the ultrasonic measuring device, and the ultrasonic measuring device comprises a casing at both ends and a measuring section in the middle; the rectifying structure comprises a notch (1) and a convex The ridge (7), the notch (1) is opened at the end of the shell, the convex ridge (7) is longitudinally arranged on the inner wall of the end of the shell, and the notch (1) and the ridge (7) are at the end of the shell The parts are arranged staggered on the circumference, and the shell is integrally formed with the notch (1) and the convex ridge (7). 2. the rectification structure of a kind of ultrasonic measuring device, it is characterized in that: be arranged on the end of the ultrasonic measuring device, the ultrasonic measuring device comprises the housing of both ends and the measuring section of the middle, and described rectifying structure is the end of the housing slotted port 1). 3. A rectification structure of an ultrasonic measuring device, characterized in that: the ultrasonic measuring device is arranged at the end of the ultrasonic measuring device, and the ultrasonic measuring device comprises a casing at both ends and a measuring section in the middle; the rectifying structure is on the inner wall of the end of the casing. Provided with longitudinal ridges (7). 4 . The rectification structure for ultrasonic measurement according to claim 1 , wherein a reflection mirror is arranged in the casing of the ultrasonic measurement device, and the two sides of the reflection mirror are connected to the casing and integrally formed with the casing. 5 . ; Both the shell and the measuring section are cylindrical, the cross-sectional shape of the inner hole of the measuring section is an ellipse or similar to an ellipse, the two shells and one measuring section are combined with each other, and the reflection direction of the mirror in the shell is the same as that of the measuring section. The centerline of the inner hole is in the same direction. 5 . The rectification structure for ultrasonic measurement according to claim 4 , wherein the shape of the reflector in the casing is consistent with the oval shape or similar oval shape of the inner hole of the measurement section; the reflector The two sides of the shell are connected together with the inner wall of the shell, and are integrally formed with the shell. 6 . The rectification structure for ultrasonic measurement according to claim 4 , wherein the reflector in the housing is a rectangular reflector, and both sides of the reflector are connected to the inner wall of the housing. 7 . , and is integrally formed with the shell. 7. A rectification method of an ultrasonic measuring device, using the rectification structure defined in any one of claims 1-3, comprising the steps: The ultrasonic measuring device includes a casing at both ends and a measuring section in the middle, a notch (1) is set at the end of the casing, and a longitudinal ridge (7), a notch (1) and a ridge are arranged on the inner wall of the end of the casing. (7) The rectification structure includes the staggered arrangement of the notch (1) and the convex ridge (7) on the circumference of the end of the casing, and the casing is integrally formed with the notch (1) and the convex ridge (7); the rectification structure is located in the ultrasonic wave. Upstream and downstream of the measuring device, the fluid entering the ultrasonic measuring device is rectified to ensure a stable flow state.

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