Ultrasonic flowmeter adaptive to emission transducer

Abstract

The ultrasonic flowmeter comprises a flowmeter tube, two inclined open holes are formed in the flowmeter tube, the two inclined open holes are arranged in a face-to-face mode, the bottoms of the two inclined open holes are designed to be blind holes, each inclined open hole is internally provided with one ultrasonic transducer, the two ultrasonic transducers are directly opposite to each other, and the two ultrasonic transducers are connected with the flowmeter tube. And an intermediate reflector is not needed. According to the ultrasonic flowmeter, the holes are obliquely formed in the flowmeter tube, and the correlation type ultrasonic transducers are installed, so that direct measurement without a reflector is achieved, and the measurement precision and stability are improved.

Description

Technical Field

[0001] The invention discloses an ultrasonic flowmeter adapted to a radiation type transducer, and relates to the technical field of flow measurement. Background Art

[0002] Traditional ultrasonic flow meters usually measure fluid flow rate by inserting a transducer into a pipe. However, this insertion design not only increases fluid resistance, but may also cause damage to the transducer due to fluid scouring and corrosion. In addition, traditional ultrasonic flow meters often require the use of reflectors to guide ultrasonic signals, which not only increases signal attenuation, but may also affect measurement accuracy due to contamination or deformation of the reflector surface. Summary of the invention

[0003] In order to solve the above problems, the present invention proposes an ultrasonic flowmeter adapted for a beam transducer, which realizes direct measurement without a reflector by obliquely opening a hole in the flowmeter tube and installing a beam ultrasonic transducer, thereby improving measurement accuracy and stability.

[0004] The technical solution of the present invention is as follows:

[0005] An ultrasonic flowmeter adapted for a beam-type transducer comprises a flowmeter tube, wherein the flowmeter tube is provided with two oblique openings, the two oblique openings are arranged face to face and the bottoms of the holes are designed as blind holes, an ultrasonic transducer is respectively installed in each oblique opening, and the two ultrasonic transducers are directly beamed to each other without the need for an intermediate reflector.

[0006] Preferably, the inclination angle and position design of the above-mentioned oblique openings enable the transmitting and receiving paths of the two ultrasonic transducers to form an effective measuring flow channel cross section inside the flow meter tube.

[0007] Preferably, the flow meter tube adopts a sealed design to ensure that the fluid medium does not leak through the oblique opening, and the ultrasonic transducer is fixed in the oblique opening by a sealing device to maintain the overall sealing of the flow meter.

[0008] Preferably, the ultrasonic transducer is of a counter-radiation design, directly emitting and receiving ultrasonic signals to each other, thereby directly measuring the fluid flow rate without passing through a reflector, reducing signal attenuation and improving measurement accuracy; the ultrasonic transducer is integrated with the internal structure of the oblique opening.

[0009] Preferably, the material and structural design of the flow meter tube meet the pressure and temperature working requirements of the fluid medium, ensuring the stable operation of the flow meter in harsh environments.

[0010] Preferably, the ultrasonic flowmeter further comprises a signal processing unit for receiving and processing the ultrasonic signal between the two ultrasonic transducers, calculating the fluid flow velocity according to the time difference or frequency change of the signal, and further calculating the flow rate.

[0011] Preferably, the signal processing unit also has a data correction function, which can correct the measurement results in real time according to factors such as the characteristics, temperature, pressure, etc. of the fluid medium, thereby improving the measurement accuracy.

[0012] Preferably, the end of the outer tube of the flow meter tube is also provided with an external thread, so as to facilitate installation of the flow meter in a pipeline system and ensure the stability and sealing of the installation.

[0013] Preferably, the selection, installation position and angle of the ultrasonic transducer can be optimized according to factors such as the specific fluid medium, flow rate range and measurement accuracy requirements to achieve the best measurement effect.

[0014] Preferably, the above-mentioned flow meter also includes a power supply module and a communication interface, which are used to provide power support for the flow meter and realize data communication with a host computer or a remote monitoring system.

[0015] The beneficial effects of the present invention are:

[0016] 1. High-precision measurement: Since the opposing transducers directly transmit and receive ultrasonic signals to each other without passing through reflectors, signal attenuation is reduced and measurement accuracy is improved.

[0017] 2. High stability: The flow meter tube adopts a sealed design to avoid the impact of fluid erosion and corrosion on the transducer, and improve the stability and service life of the flow meter.

[0018] 3. Easy to install and maintain: The flow meter tube is equipped with external threads, which makes it easy to install the flow meter in the pipeline system and ensures the stability and sealing of the installation. At the same time, the installation position and angle of the transducer can be optimized according to specific needs, which is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 2 It is a cross-sectional view of the invention. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0022] like Figure 1-2As shown, an ultrasonic flowmeter adapted for a beam-type transducer comprises a flowmeter tube 1, wherein the flowmeter tube 1 is provided with two oblique openings 2, wherein the two oblique openings 2 are arranged face to face and the bottom of the holes are designed as blind holes, wherein an ultrasonic transducer 3 is respectively installed in each oblique opening 2, and the two ultrasonic transducers 3 are directly beamed at each other without the need for an intermediate reflector.

[0023] Preferably, the inclination angle and position design of the oblique opening 2 are such that the transmitting and receiving paths of the two ultrasonic transducers 3 form an effective measuring flow channel cross section inside the flow meter tube 1 .

[0024] Preferably, the flow meter tube 1 adopts a sealed design to ensure that the fluid medium does not leak through the oblique opening 2. At the same time, the ultrasonic transducer 3 is fixed in the oblique opening 2 by a sealing device to maintain the overall sealing of the flow meter.

[0025] Preferably, the ultrasonic transducer 3 is of a counter-radiation design, directly emitting and receiving ultrasonic signals to each other, thereby directly measuring the fluid flow rate without passing through a reflector, reducing signal attenuation and improving measurement accuracy; the ultrasonic transducer 3 is integrated with the internal structure of the oblique opening 2.

[0026] Preferably, the material and structural design of the flow meter tube 1 meet the working requirements of pressure and temperature of the fluid medium, ensuring the stable operation of the flow meter in harsh environments.

[0027] Preferably, the ultrasonic flowmeter also includes a signal processing unit for receiving and processing the ultrasonic signal between the two ultrasonic transducers 3, calculating the fluid flow rate according to the time difference or frequency change of the signal, and further calculating the flow rate. The connection between the ultrasonic transducer 3 and the signal processing unit is wired.

[0028] Preferably, the signal processing unit also has a data correction function, which can correct the measurement results in real time according to factors such as the characteristics, temperature, pressure, etc. of the fluid medium, thereby improving the measurement accuracy.

[0029] Preferably, the end of the outer tube of the flow meter tube 1 is also provided with an external thread, so as to facilitate the installation of the flow meter in the pipeline system and ensure the stability and sealing of the installation.

[0030] Preferably, the type selection, installation position and angle of the ultrasonic transducer 3 can be optimized according to factors such as the specific fluid medium, flow rate range and measurement accuracy requirements to achieve the best measurement effect.

[0031] Preferably, the above-mentioned flow meter also includes a power supply module and a communication interface, which are used to provide power support for the flow meter and realize data communication with a host computer or a remote monitoring system.

[0032] Example:

[0033] The flowmeter of the present invention is installed on pipes of three calibers to detect the liquid flow in the pipes. The detection data are shown in Tables 1-3 below.

[0034]

[0035] Table 1 (diameter: DN15, range ratio R400)

[0036]

[0037] Table 2 (diameter: DN20, range ratio R400)

[0038]

[0039] Table 3 (diameter: DN25, range ratio R400)

[0040] The data of the above embodiments prove that the ultrasonic flowmeter of the present invention has an error rate within an acceptable range in the test experiments of three pipe diameters, and has high accuracy and strong stability.

[0041] The ultrasonic flowmeter of the present invention can be widely used in flow measurement of various fluid media, such as liquid, gas, etc. Its high precision, high stability and easy installation and maintenance make the present invention have broad application prospects in the fields of industrial automation, environmental monitoring, etc.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An ultrasonic flow meter adapted for a beam transducer, characterized in that: The flow meter tube (1) comprises two oblique openings (2) provided on the flow meter tube (1), the two oblique openings (2) being arranged face to face and having a blind hole design at the bottom, an ultrasonic transducer (3) being installed in each oblique opening (2), the two ultrasonic transducers (3) being directly opposite to each other without requiring an intermediate reflector.

2. The ultrasonic flowmeter adapted for a beam-type transducer according to claim 1, characterized in that: The inclination angle and position design of the oblique opening (2) enable the emission and receiving paths of the two ultrasonic transducers (3) to form an effective measurement flow channel cross section inside the flow meter tube (1).

3. An ultrasonic flowmeter adapted for a beam transducer according to claim 1 or 2, characterized in that: The flow meter tube (1) adopts a sealed design to ensure that the fluid medium will not leak through the oblique opening (2), while the ultrasonic transducer (3) is fixed in the oblique opening (2) by a sealing device to maintain the overall sealing of the flow meter.

4. The ultrasonic flowmeter adapted for a beam transducer according to claim 1, characterized in that: The ultrasonic transducer (3) is of a counter-radiation design, directly transmitting and receiving ultrasonic signals mutually, and is integrated with the internal structure of the oblique opening (2).

5. The ultrasonic flowmeter adapted for a beam transducer according to claim 1, characterized in that: The material and structural design of the flow meter tube (1) meet the pressure and temperature working conditions of the fluid medium, ensuring stable operation of the flow meter in harsh environments.

6. The ultrasonic flowmeter adapted for a beam transducer according to claim 1, characterized in that: It also includes a signal processing unit, which is used to receive and process the ultrasonic signal between the two ultrasonic transducers (3), calculate the fluid flow rate according to the time difference or frequency change of the signal, and further calculate the flow rate.

7. The ultrasonic flowmeter adapted for a beam-type transducer according to claim 6, characterized in that: The signal processing unit also has a data correction function, which can correct the measurement results in real time according to factors such as the characteristics, temperature, pressure, etc. of the fluid medium, thereby improving the measurement accuracy.

8. The ultrasonic flow meter according to any one of claims 1 to 7, characterized in that: The end of the outer tube of the flow meter tube (1) is also provided with an external thread, which facilitates the installation of the flow meter in the pipeline system and ensures the stability and sealing of the installation.

9. The ultrasonic flow meter according to any one of claims 1 to 7, characterized in that: The type selection, installation position and angle of the ultrasonic transducer (3) can be optimized according to factors such as the specific fluid medium, flow rate range and measurement accuracy requirements, so as to achieve the best measurement effect.

10. The ultrasonic flow meter according to any one of claims 1 to 9, characterized in that: The flow meter also includes a power supply module and a communication interface, which are used to provide power support for the flow meter and realize data communication with a host computer or a remote monitoring system.

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