CN212482582U

CN212482582U - High-precision ultrasonic flowmeter

Info

Publication number: CN212482582U
Application number: CN202020549737.XU
Authority: CN
Inventors: 刘明生; 蒋冬兰; 陈奕熙
Original assignee: Quanzhou Chiyoung Instrument Co ltd
Current assignee: Quanzhou Chiyoung Instrument Co ltd
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-02-05
Anticipated expiration: 2030-04-15

Abstract

The utility model provides a high-precision ultrasonic flowmeter, which comprises a metal pipe body and an ultrasonic transducer, wherein an annular bearing seat is embedded in the inner side wall of the metal pipe body, one end of a rotating shaft rotates to penetrate through the side wall of the metal pipe body and extends to the outside of the metal pipe body, and is fixedly connected with the output end of a motor, and the motor is connected with the metal pipe body through a bolt; open the motor, let the gear drive ring bevel gear and rotate to make the bar scraper rotate, the inside wall of friction metal body, and then the inside wall of clearance metal body guarantees that the inside wall of metal body is smooth, improves flowmeter's precision. When the first scraper and the fourth scraper rotate in the annular sliding groove, the first electromagnet and the electromagnets arranged in the annular array are close to and far away from each other periodically, and when the third scraper and the fourth scraper rotate, the third scraper and the fourth scraper are made of elastic rubber materials, can be tightly attached to the inner side wall of the metal pipe body, and can also move back and forth along the direction of the metal pipe body to rub to fully remove dirt.

Description

High-precision ultrasonic flowmeter

Technical Field

The utility model relates to a measure technical field, specifically be a high accuracy ultrasonic flowmeter.

Background

The invented ultrasonic flow meter is based on the principle of "speed difference method" and is used for measuring the flow of liquid in circular tube. The flow meter adopts advanced multi-pulse technology, signal digital processing technology and error correction technology, so that the flow meter can be more suitable for the environment of an industrial field, and the metering is more convenient, economic and accurate. The product reaches the advanced level at home and abroad, and can be widely applied to the fields of petroleum, chemical engineering, metallurgy, electric power, water supply and drainage and the like. An ultrasonic flowmeter is a non-contact instrument which can measure the medium flow of a large pipe diameter and can also be used for measuring a medium which is not easy to contact and observe. The device has high measurement accuracy, is hardly interfered by various parameters of the measured medium, and particularly can solve the problem of flow measurement of strong corrosive, non-conductive, radioactive and flammable and explosive media which cannot be measured by other instruments.

However, the existing ultrasonic flowmeter remains dirt on the pipe wall due to long-term use, and the thickness of the pipe wall is influenced, so that the accuracy of ultrasonic measurement is influenced.

Patent application No. 201920605398.X discloses a high-precision ultrasonic flowmeter, which can utilize a scraper to clean dirt on the inner side of a pipeline, but the effect of cleaning the dirt is poor, and the rotation of the scraper cannot fully separate the residual dirt from the pipe wall.

Therefore, a high-precision ultrasonic flowmeter is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a high accuracy ultrasonic flowmeter.

The utility model provides a its technical problem adopt following technical scheme to realize:

a high-precision ultrasonic flowmeter comprises a metal pipe body and an ultrasonic transducer, wherein an annular bearing seat is embedded in the inner side wall of the metal pipe body, an annular bevel gear is rotatably connected in the annular bearing seat, the annular bevel gear is meshed with a gear, the gear is positioned in a cavity formed in the inner side wall of the metal pipe body, the center of gravity of the gear is fixedly connected with one end of a rotating shaft, the other end of the rotating shaft rotatably penetrates through the side wall of the metal pipe body and extends to the outside of the metal pipe body, the other end of the rotating shaft is fixedly connected with the output; one end of a strip-shaped scraper is fixedly connected to the side wall of the annular bevel gear, the other end of the strip-shaped scraper is rotatably connected into an annular chute formed in the annular support, and the annular support is fixedly connected with the inner side wall of the metal pipe body; the strip scraper includes a mechanism for substantially removing dirt.

Through foretell technical scheme, open the motor, let the gear drive ring bevel gear rotate to make the bar scraper rotate, the inside wall of friction metal body, and then the inside wall of clearance metal body guarantees that the inside wall of metal body is smooth, improves the precision of flowmeter.

Preferably, the mechanism for sufficiently removing dirt comprises a first scraper, one end of the first scraper is fixedly connected with the annular bevel gear, the other end of the first scraper is slidably inserted into the sleeve and is connected with a fourth scraper through a spring, one end of the fourth scraper is slidably inserted into the sleeve, and the other end of the fourth scraper is rotatably connected into an annular chute formed in the side wall of the annular support; the second scraper and the third scraper are made of rubber elastic materials; the side wall of the sleeve is fixedly connected with a first electromagnet, and the side wall of the annular support is fixedly connected with a plurality of second electromagnets annularly arrayed with the first electromagnet.

Through foretell technical scheme, when scraper one and scraper four when annular spout internal rotation, electro-magnet one with the electro-magnet periodic of annular array range be close to and keep away from, when scraper three, scraper four are rotatory this moment, scraper three, scraper four are the elastic rubber material, can closely paste the inside wall of metal body, also can be along the direction back-and-forth movement friction of metal body, fully get rid of the dirt.

As right the high accuracy ultrasonic flowmeter, preferably, the pivot is connected with sealed the pad with the lateral wall through-put of metal body.

Through foretell technical scheme, sealed pad can prevent fully that external dirt from getting into in the metal pipe body.

As right a high accuracy ultrasonic flowmeter, preferred, scraper one, scraper two, scraper three and scraper four are strip arc plate structure.

Through foretell technical scheme, the inside wall of strip arc plate structure can closely paste the alloy body, abundant scale removal.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. open the motor, let the gear drive ring bevel gear and rotate to make the bar scraper rotate, the inside wall of friction metal body, and then the inside wall of clearance metal body guarantees that the inside wall of metal body is smooth, improves flowmeter's precision.

2. When the first scraper and the fourth scraper rotate in the annular sliding groove, the first electromagnet and the electromagnets arranged in the annular array are close to and far away from each other periodically, and when the third scraper and the fourth scraper rotate, the third scraper and the fourth scraper are made of elastic rubber materials, can be tightly attached to the inner side wall of the metal pipe body, and can also move back and forth along the direction of the metal pipe body to rub to fully remove dirt.

3. The sealing gasket can fully prevent external dirt from entering the metal pipe body.

4. The strip-shaped arc-shaped plate structure can be tightly attached to the inner side wall of the metal pipe body, and scale can be fully removed.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the part A of FIG. 1;

fig. 3 is a schematic view of a mechanism for removing dirt sufficiently according to the present invention.

In the figure:

the ultrasonic vibration generator comprises a metal pipe body 1, an ultrasonic transducer 2, an annular bevel gear 3, an annular bearing seat 4, a strip-shaped scraper 5, a gear 6, a rotating shaft 7, a motor 8, an annular chute 9 and an annular support 10; the device comprises a first scraper 51, a spring 52, a sleeve 53, a first electromagnet 54, a second scraper 55, a third scraper 56, a fourth scraper 57 and a second electromagnet 58.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1, the utility model provides a high-precision ultrasonic flowmeter, including metal pipe body 1 and ultrasonic transducer 2, the inside wall of metal pipe body 1 is embedded with ring bearing seat 4, ring bearing seat 4 is connected with ring bevel gear 3 rotationally, as shown in fig. 2, ring bevel gear 3 meshes has gear 6, gear 6 is located the cavity that the inside wall of metal pipe body 1 was seted up, the focus of gear 6 is fixedly connected with one end of pivot 7, the other end of pivot 7 rotates and runs through the lateral wall of metal pipe body 1 and extends to the outside of metal pipe body 1 and the output of fixedly connected with motor 8, motor 8 passes through bolted connection with metal pipe body 1; one end of a strip-shaped scraper 5 is fixedly connected to the side wall of the annular bevel gear 3, the other end of the strip-shaped scraper 5 is rotatably connected into an annular chute 9 formed in an annular support 10, and the annular support 10 is fixedly connected with the inner side wall of the metal pipe body 1; the strip scraper 5 comprises a sufficient dirt removing mechanism. Like this, open motor 8, let gear 6 drive ring bevel gear 3 and rotate to make bar scraper 5 rotate, the inside wall of friction metal body 1, and then the inside wall of clearance metal body 1, it is smooth to guarantee metal body 1's inside wall, improves the precision of flowmeter.

As shown in fig. 3, as an embodiment of the present invention, the mechanism for sufficiently removing dirt includes a first scraper 51, one end of the first scraper 51 is fixedly connected to the annular bevel gear 3, the other end of the first scraper 51 is slidably inserted into the sleeve 53 and is connected to a fourth scraper 57 through a spring 52, one end of the fourth scraper 57 is slidably inserted into the sleeve 53, and the other end of the fourth scraper 57 is rotatably connected to an annular chute 9 formed in a side wall of the annular support 10; the second scraper 55 and the third scraper 56 are made of rubber elastic materials; the side wall of the sleeve 53 is fixedly connected with a first electromagnet 54, and the side wall of the annular support 10 is fixedly connected with a plurality of second electromagnets 58 in annular array with the first electromagnet 54. Therefore, when the first scraper 51 and the fourth scraper 57 rotate in the annular chute 9, the first electromagnet 54 and the second electromagnet 58 arranged in the annular array periodically approach and separate, at this time, the third scraper 56 and the fourth scraper 57 rotate, and simultaneously, the third scraper 56 and the fourth scraper 57 are made of elastic rubber materials, can be tightly attached to the inner side wall of the metal pipe body 1, can also move back and forth along the direction of the metal pipe body 1 for friction, and can fully remove dirt.

As an embodiment of the present invention, a sealing gasket is connected to the penetrating portion of the rotating shaft 7 and the side wall of the metal pipe body 1. Thus, the gasket can sufficiently prevent external dirt from entering the metal pipe body 1.

As an embodiment of the present invention, the first scraper 51, the second scraper 55, the third scraper 56 and the fourth scraper 57 are all bar-shaped arc-shaped plate structures. Like this, the inside wall of strip arc plate structure can closely paste alloy body 1, abundant scale removal.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a high accuracy ultrasonic flowmeter, includes metal pipe body (1) and ultrasonic transducer (2), its characterized in that: the inner side wall of the metal pipe body (1) is embedded with an annular bearing seat (4), an annular bevel gear (3) is rotationally connected in the annular bearing seat (4), the annular bevel gear (3) is meshed with a gear (6), the gear (6) is located in a cavity formed in the inner side wall of the metal pipe body (1), the center of gravity of the gear (6) is fixedly connected with one end of a rotating shaft (7), the other end of the rotating shaft (7) rotates to penetrate through the side wall of the metal pipe body (1) and extends to the outside of the metal pipe body (1), the output end of a motor (8) is fixedly connected with the other end of the rotating shaft (7), and the motor (;

one end of a strip-shaped scraper (5) is fixedly connected to the side wall of the annular bevel gear (3), the other end of the strip-shaped scraper (5) is rotatably connected into an annular sliding groove (9) formed in an annular support (10), and the annular support (10) is fixedly connected with the inner side wall of the metal pipe body (1); the strip-shaped scraper (5) comprises a mechanism for fully removing dirt;

the mechanism for fully removing the dirt comprises a first scraper (51), one end of the first scraper (51) is fixedly connected with the annular bevel gear (3), the other end of the first scraper (51) is inserted in the sleeve (53) in a sliding mode and is connected with a fourth scraper (57) through a spring (52), one end of the fourth scraper (57) is inserted in the sleeve (53) in a sliding mode, and the other end of the fourth scraper (57) is rotatably connected in an annular sliding groove (9) formed in the side wall of the annular support (10); the second scraper (55) and the third scraper (56) are made of rubber elastic materials; the side wall of the sleeve (53) is fixedly connected with a first electromagnet (54), and the side wall of the annular support (10) is fixedly connected with a plurality of second electromagnets (58) which are annularly arrayed with the first electromagnet (54).

2. The high accuracy ultrasonic flow meter of claim 1, wherein: the rotating shaft (7) and the side wall of the metal pipe body (1) are connected with a sealing gasket in a penetrating way.

3. The high accuracy ultrasonic flow meter of claim 1, wherein: the first scraper (51), the second scraper (55), the third scraper (56) and the fourth scraper (57) are all in a strip arc-shaped plate structure.