CN114235081A

CN114235081A - Ultrasonic flowmeter meter runner device

Info

Publication number: CN114235081A
Application number: CN202210183195.2A
Authority: CN
Inventors: 程波; 苏晓龙; 孙玉领
Original assignee: Shuifa Hangyuxing Iot Technology Liaoning Co ltd
Current assignee: Shuifa Hangyuxing Iot Technology Liaoning Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-03-25
Anticipated expiration: 2042-02-28
Also published as: CN114235081B

Abstract

The invention relates to the technical field of metering instruments and discloses a flow passage device of an ultrasonic flowmeter, which comprises a mother shell and a son shell, wherein the mother shell and the son shell are multi-curve modules with symmetrical internal shapes, the mother shell and the son shell are fixed together by screws, a fluid channel is formed inside the mother shell and the son shell, a buffer cavity is arranged at the inlet end of the fluid channel, two transducers are fixedly arranged outside the fluid channel, a reflector plate is fixedly arranged at the top inside the fluid channel, the cross section of the whole fluid channel is of a rectangular structure with downward break angles, two transducers which are symmetrically distributed mutually are fixedly arranged on the outer wall surface of the fluid channel, the reflector plate is fixedly arranged at the break angle at the top of the fluid channel, the arranged fluid channel prolongs the acoustic path, increases the time of ultrasonic signals passing through the fluid in the fluid channel and expands the range, the measurement is more accurate, and the precision of ultrasonic detection is improved.

Description

Ultrasonic flowmeter meter runner device

Technical Field

The invention relates to the technical field of metering instruments, in particular to a flow channel device of an ultrasonic flow meter, wherein the flow meter can be a gas flow meter, a water flow meter, a flowmeter and the like.

Background

Compared with the traditional mechanical flowmeter, the ultrasonic flowmeter has the characteristics of high accuracy, good reliability, wide range ratio, strong real-time property and no moving part, does not have any moving part or flow-blocking part in a measured pipeline, has no abrasion and high sensitivity, can detect the change of flow velocity, and can become the trend in the measurement field by selecting the ultrasonic flowmeter.

The flow channel design of the ultrasonic flowmeter directly influences the metering accuracy of the ultrasonic flowmeter. The flow channel of the general ultrasonic flowmeter is not rectified, the ultrasonic wave cannot detect stably distributed fluid flow, the repeatability of the flow velocity obtained by collecting and calculating is poor, and the metering accuracy is not high.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a flow passage device of an ultrasonic flowmeter.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an ultrasonic flowmeter meter runner device, includes female shell and son shell, female shell and son shell are many curved modules of inside shape symmetry, and female shell and son shell are in the same place with screw fixed connection, and the inside formation fluid passage of female shell and son shell. The fluid channel inlet end is provided with a buffer cavity, two transducers are fixedly mounted on the outer portion of the fluid channel, and a reflector plate is fixedly mounted on the top of the inner portion of the fluid channel.

Preferably, the outer wall surface of the female housing is provided with a screw hole for fixation, and the sub-housing is provided with a hole corresponding to the screw hole.

Preferably, two of the transducers are symmetrically arranged outside the fluid channel, and the reflector plate is positioned between the two transducers.

Preferably, the periphery of each fluid channel is provided with a special-shaped sealing ring.

Preferably, the fluid passage and the buffer chamber are communicated with each other, and the cross section of the buffer chamber is larger than that of the fluid passage.

Advantageous effects

The invention provides a flow passage device of an ultrasonic flowmeter. The method has the following beneficial effects:

1. this an ultrasonic flowmeter meter runner device, including female shell, son shell, female shell and son shell are the many bent shape modules of inside shape symmetry, be in the same place with screw fixed connection, the inside fluid passage that forms of female shell and son shell, whole fluid passage's cross-section is the rectangle structure that dog-ear down, fluid passage's outside both sides fixed mounting respectively has the transducer, reflector plate fixed mounting is in fluid passage's top dog-ear, the fluid passage who sets up makes the acoustic path extension, the time of ultrasonic signal through fluidic in the fluid passage has been increased, the range has been expanded, make the measurement more accurate, thereby ultrasonic detection's precision has been improved.

2. This ultrasonic flowmeter meter runner device, set up the cushion chamber at fluid passage entrance point, the cross section of cushion chamber is great, fluid enters into fluid passage's inside back through the entrance point, will rush into the cushion chamber, fluidic speed will be reduced, the top and the fluid passage intercommunication each other of cushion chamber, the fluid of slowing down will establish stable flow field again in fluid passage's inside after entering into fluid passage's inside, it is anti-interference, it is more stable to make measurement section velocity of flow distribute, it is more accurate to make the measurement result.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of a female housing according to the present invention;

FIG. 2 is a schematic view of a sub-shell structure of the present invention;

FIG. 3 is a schematic view of the connection of the female and male housings of the present invention;

fig. 4 is a schematic view of the internal structure of the female housing according to the present invention.

Illustration of the drawings:

1. a female shell; 2. a subshell; 3. a fluid channel; 4. a buffer chamber; 5. a transducer; 6. a reflective sheet; 7. screw holes; 8. a special-shaped sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", "side", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

Example (b): a flow passage device of an ultrasonic flowmeter is shown in figures 1-4 and comprises a mother shell 1 and a son shell 2, wherein the mother shell 1 and the son shell 2 are multi-curve modules with symmetrical internal shapes, the mother shell 1 and the son shell 2 are fixedly connected together by screws, and a fluid passage 3 is formed inside the mother shell 1 and the son shell 2. The inlet end of the fluid channel 3 is provided with a buffer cavity 4, two transducers 5 are fixedly arranged outside the fluid channel 3, and a reflector plate 6 is fixedly arranged on the top inside the fluid channel 3.

Offer the screw hole 7 that is used for fixing on the outer wall of female shell 1, set up the hole that screw hole 7 corresponds each other on the son shell 2, be in the same place through screw fixed connection between female shell 1 and the son shell 2, whole son shell 2 can inlay the inside that enters into female shell 1 safely when the installation, and female shell 1 and son shell 2 can be dismantled at any time, when inside transducer 5 and reflector plate 6 need be changed, can be with the separation of female shell son shell more conveniently change.

Two transducers 5 symmetry are installed in fluid passage 3's outside, reflector plate 6 is located between two transducers 5, the setting of reflector plate can make the ultrasonic wave take place to refract transducer 5 that the directive corresponds, female shell 1 and son shell 2 dock each other, fluid passage 3's periphery is provided with special-shaped sealing ring 8, the fluid passage 3 who sets up makes the ultrasonic wave enter into fluid passage 3 inside back acoustic path extension, the time that ultrasonic signal passes through fluid passage has been increased, the range has been expanded, make the measurement more accurate, ultrasonic detection's precision has been improved.

The buffer cavity 4 is formed in the inlet end of the fluid channel 3, the cross section of the buffer cavity 4 is large, fluid enters the fluid channel 3 through the inlet end and then rushes into the buffer cavity 4, the speed of the fluid is reduced, the upper portion of the buffer cavity 4 is communicated with the fluid channel 3, the decelerated fluid enters the fluid channel 3 and then a stable flow field is reestablished in the fluid channel 3, interference resistance is achieved, the flow velocity distribution of a metering section is stable, and the metering result is accurate.

The working principle of the invention is as follows:

this ultrasonic flowmeter meter runner device, female shell 1 and son shell 2 fixed connection inside formation fluid passage 3 together, whole fluid passage 3's cross-section is the rectangle structure of dog-ear down, fluid passage 3's outside both sides fixed mounting respectively has transducer 5, 6 fixed mounting of reflector plate are in fluid passage 3's top dog-ear, the fluid passage 3 that sets up makes the acoustic path extension, the time of ultrasonic signal through fluidic in the fluid passage has been increased, the range has been expanded, make the measurement more accurate, thereby ultrasonic detection's precision has been improved.

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. The utility model provides an ultrasonic flowmeter meter runner device, includes female shell (1) and son shell (2), its characterized in that: female shell (1) and son shell (2) are many curved shape modules of inside shape symmetry, and female shell (1) and son shell (2) are in the same place with the fix with screw, and the inside of female shell (1) and son shell (2) forms fluid passage (3), cushion chamber (4) have been seted up to the entrance point of fluid passage (3), the outside fixed mounting of fluid passage (3) has two transducers (5), the inside top fixed mounting of fluid passage (3) has reflector plate (6).

2. The flow channel device of an ultrasonic flow meter according to claim 1, wherein: the outer wall surface of the female shell (1) is provided with a screw hole (7) for fixing, and the sub-shell (2) is provided with a hole corresponding to the screw hole (7).

3. The flow channel device of an ultrasonic flow meter according to claim 1, wherein: the two transducers (5) are symmetrically arranged outside the fluid channel (3), and the reflector plate (6) is positioned between the two transducers (5).

4. The flow channel device of an ultrasonic flow meter according to claim 1, wherein: the periphery of the fluid channel (3) is provided with a special-shaped sealing ring (8).

5. The flow channel device of an ultrasonic flow meter according to claim 1, wherein: the fluid channel (3) and the buffer cavity (4) are communicated with each other, and the cross section of the buffer cavity (4) is larger than that of the fluid channel (3).