Ultrasonic fluid measuring device

Abstract

The utility model innovatively provides an ultrasonic fluid measuring device which comprises a measuring tube, an even number of groups of ultrasonic transducers are arranged in the measuring tube, the ultrasonic transducers are arranged along the length direction of the measuring tube, the ultrasonic fluid measuring device further comprises a bearing seat for mounting the ultrasonic transducers, the measuring tube is provided with a mounting hole, the bearing seat is connected in the mounting hole, and the ultrasonic transducers are arranged in the mounting hole. The bearing seat is perpendicular to the measuring tube; the ultrasonic transducer has the advantages that the problem that the mounting hole of the measuring tube is difficult to arrange due to the fact that the mounting angle of the ultrasonic transducer is too large is avoided, the measuring sonic path distance is remarkably increased, the measuring precision is improved, and the ultrasonic transducer is simple in structure, easy to machine, high in measuring precision, convenient to manufacture and mount and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of fluid detection, and more specifically, to an ultrasonic fluid measurement device. Background Art

[0002] Ultrasonic fluid measurement generally consists of a transducer and a measuring pipe section. The transducer is generally installed on both sides of the measuring section of the pipe, and the transducers are directly aligned. This structure generally aligns the transducer with the pipeline at a certain angle, resulting in difficult processing of the installation holes and a relatively short ultrasonic path, thus affecting the ultrasonic measurement accuracy. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an ultrasonic fluid measurement device to overcome the above-mentioned defects in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] An ultrasonic fluid measurement device includes a measuring pipe. An even number of ultrasonic transducers are arranged in the measuring pipe, and the ultrasonic transducers are arranged along the length direction of the measuring pipe. It also includes a carrier seat for installing the ultrasonic transducers. The measuring pipe is provided with installation holes, the carrier seat is connected in the installation holes, and the carrier seat is perpendicular to the measuring pipe.

[0006] Further, one end of the carrier seat facing the inside of the measuring pipe is provided with an inclined slope, and the orientation of the slope is the same as the transmitting or receiving direction of the ultrasonic transducer.

[0007] Further, one end of the carrier seat facing the inside of the measuring pipe is provided with a refracting surface, the transmitting or receiving direction of the ultrasonic transducer faces the refracting surface, and is perpendicular to the inner wall of the measuring pipe.

[0008] Further, a flow guiding device for generating a spiral of the fluid is provided at the port of the measuring pipe.

[0009] Further, the flow guiding device includes at least two groups of flow guiding plates. The two groups of flow guiding plates are respectively arranged oppositely on the inner side wall of the measuring pipe, and each group of flow guiding plates is perpendicular to the inner side wall of the measuring pipe.

[0010] Further, the flow guiding device includes one provided at any port of the measuring pipe or two provided at both ports of the measuring pipe (1).

[0011] Further, the longitudinal cross-section of the fluid measurement channel of the measuring pipe is circular, elliptical or square.

[0012] Further, the ultrasonic transducer is a magnetostrictive ultrasonic transducer or a piezoelectric ceramic ultrasonic transducer.

[0013] Advantages of the present utility model: It solves the technical problem of low measurement accuracy caused by short ultrasonic measurement path in ultrasonic fluid measurement. Specifically, by setting a bearing seat, an ultrasonic transducer is installed on the bearing seat and then connected to the measuring pipe, avoiding the difficulty in setting the installation hole of the measuring pipe due to the installation angle of the ultrasonic transducer. The structure designed by the present utility model has the advantages of simple structure, easy processing, high measurement accuracy, convenient manufacturing and installation, etc., and can be widely applied to the field of ultrasonic fluid measurement. Description of the Drawings

[0014] Figure 1 is a cross-sectional view of Embodiment 1 of the present utility model;

[0015] Figure 2 is a cross-sectional view of Embodiment 2 of the present utility model;

[0016] Figure 3 is a cross-sectional schematic view of Embodiment 3 of the present utility model;

[0017] Figure 4 is a cross-sectional schematic view of Embodiment 4 of the present utility model.

[0018] Reference numerals: 1, measuring pipe; 2, ultrasonic transducer; 3, bearing seat; 4, flow guiding device. Detailed Embodiments

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] The following further details the embodiments of this utility model with reference to the accompanying drawings:

[0023] Currently, in ultrasonic fluid measurement devices, it is difficult to set the mounting holes of the measuring tube 1 due to the mounting angle of the ultrasonic transducer 2. Therefore, this utility model designs an ultrasonic fluid measurement device with a simple structure and convenient installation, including a measuring tube 1. An even number of ultrasonic transducers 2 are arranged inside the measuring tube 1, and the ultrasonic transducers 2 are arranged along the length direction of the measuring tube 1. It also includes a carrier seat 3 for mounting the ultrasonic transducers 2. Mounting holes are provided on the measuring tube 1, and the carrier seat 3 is connected in the mounting holes, and the carrier seat 3 is perpendicular to the measuring tube 1. Only need to vertically open mounting holes on the carrier seat 3, pre-install the ultrasonic transducers 2 on the carrier seat 3, and install the carrier seat 3 into the mounting holes, which avoids the difficulty of setting the mounting holes of the measuring tube 1 due to the mounting angle of the ultrasonic transducer 2. The structure designed by this utility model is simple and easy to process. The measurement principle is as follows: The fluid to be measured flows into through one port of the measuring tube 1, passes through the ultrasonic transducers 2 in sequence, and finally flows out from the other port of the measuring tube 1. The ultrasonic transducer 2 is used to send ultrasonic waves and the reflection of the ultrasonic waves in the pipeline is received by another group of ultrasonic transducers 2 to obtain the time of one ultrasonic wave transmission. Then, the received ultrasonic transducer 2 sends ultrasonic waves and reflects them back to the original ultrasonic transducer 2 to obtain the time of one reverse ultrasonic wave transmission. By using the influence of the fluid velocity on the ultrasonic wave transmission speed and according to the time difference of the round-trip transmission of the ultrasonic waves and the corresponding pipeline parameters, the fluid velocity and flow rate flowing through the measuring tube 1 can be calculated.

[0024] The ultrasonic transducer 2 in this utility model is a magnetostrictive ultrasonic transducer 2 or a piezoelectric ceramic ultrasonic transducer 2, and the ultrasonic transducer 2 is completely wrapped by this material, thus avoiding direct contact with the fluid to be measured and also avoiding the deposition of debris.

[0025] A flow guiding device 4 for generating a spiral of the fluid is provided at the port of the measuring tube 1. The flow guiding device 4 includes one provided at any port of the measuring tube 1 or two provided at both ports of the measuring tube 1. The flow guiding device 4 includes at least two groups of flow guiding plates. The two groups of flow guiding plates are respectively oppositely arranged on the inner side wall of the measuring tube 1, and each group of flow guiding plates is perpendicular to the inner side wall of the measuring tube 1. When the flow guiding device 4 is not provided, the fluid enters from one end of the measuring tube 1 and flows out from the other end, so the flow of the fluid is likely to be uneven. Therefore, by providing the flow guiding device 4 with spiral characteristics, the fluid can generate a spiral vortex under the influence of the flow guiding device 4, making the fluid flow concentrate towards the middle of the measuring tube 1 and evenly, improving the characteristics of the fluid flow field for better ultrasonic measurement.

[0026] Embodiment 1:

[0027] As Figure 1 shown, one end of the bearing seat 3 facing the inside of the measuring tube 1 is provided with an inclined slope, and the orientation of the slope is the same as the transmitting direction or receiving direction of the ultrasonic transducer 2. At this time, the ultrasonic transducer 2 can directly emit ultrasonic waves obliquely towards the inner wall of the measuring tube 1, and then be reflected by the inner wall of the measuring tube 1 and received by the other group of ultrasonic transducers 2.

[0028] Embodiment 2:

[0029] As Figure 2 shown, one end of the bearing seat 3 facing the inside of the measuring tube 1 is provided with a refracting surface, and the transmitting direction or receiving direction of the ultrasonic transducer 2 faces the refracting surface and is perpendicular to the inner wall of the measuring tube 1. At this time, the ultrasonic transducer 2 emits ultrasonic waves towards the refracting surface, and the ultrasonic waves are refracted by the refracting surface and then received by the other group of ultrasonic transducers.

[0030] Embodiment 3:

[0031] As Figure 3 shown, on the basis of Embodiment 1 or Embodiment 2, the longitudinal section of the fluid measurement channel of the measuring tube 1 is circular.

[0032] Embodiment 4:

[0033] As Figure 4 shown, on the basis of Embodiment 1 or Embodiment 2, the longitudinal section of the fluid measurement channel of the measuring tube 1 is square.

[0034] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. An ultrasonic fluid measurement device, comprising a measurement tube (1), wherein an even number of ultrasonic transducers (2) are arranged in the measurement tube (1), and the ultrasonic transducers (2) are arranged along the length direction of the measurement tube (1), characterized in that: It further includes a carrier seat (3) for mounting the ultrasonic transducer (2). An installation hole is provided on the measuring tube (1), and the carrier seat (3) is connected in the installation hole, and the carrier seat (3) is perpendicular to the measuring tube (1).

2. The ultrasonic fluid measuring device according to claim 1, wherein: One end of the carrier seat (3) facing the inside of the measuring tube (1) is provided with an inclined slope, and the orientation of the slope is the same as the transmitting direction or receiving direction of the ultrasonic transducer (2).

3. The ultrasonic fluid measurement device according to claim 1, wherein: One end of the carrier seat (3) facing the inside of the measuring tube (1) is provided with a refracting surface. The transmitting direction or receiving direction of the ultrasonic transducer (2) faces the refracting surface and is perpendicular to the inner wall of the measuring tube (1).

4. An ultrasonic fluid measuring device according to claim 2 or 3, characterized in that: A flow guiding device (4) for generating a spiral of the fluid is provided at the port of the measuring tube (1).

5. The ultrasonic fluid measurement device according to claim 4, characterized in that: The flow guiding device (4) includes at least two groups of flow guiding plates. The two groups of flow guiding plates are respectively oppositely arranged on the inner side wall of the measuring tube (1), and each group of flow guiding plates is perpendicular to the inner side wall of the measuring tube (1).

6. The ultrasonic fluid measurement device according to claim 5, wherein: The flow guiding device (4) includes one provided at any one port of the measuring tube (1) or two provided at both ports of the measuring tube (1).

7. The ultrasonic fluid measurement device according to claim 1, wherein: The longitudinal cross-section of the fluid measurement channel of the measuring tube (1) is circular, elliptical or square.

8. The ultrasonic fluid measuring device according to claim 1, characterized in that: The ultrasonic transducer (2) is a magnetostrictive ultrasonic transducer (2) or a piezoelectric ceramic ultrasonic transducer (2).

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