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, an ultrasonic transducer is installed in each inclined open hole, the two ultrasonic transducers are directly opposite to each other, and the two inclined open holes are communicated with each other. 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 utility model discloses an ultrasonic flowmeter adapting to opposite radiation type transducer relates to flow measurement technical field. BACKGROUND

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

[0003] To solve the above problems, the utility model provides an ultrasonic flowmeter adapting to opposite radiation type transducer, which realizes direct measurement without reflector by obliquely opening holes on the flowmeter pipe and installing opposite radiation type ultrasonic transducers, improving measurement accuracy and stability.

[0004] The technical scheme of the utility model is as follows:

[0005] An ultrasonic flowmeter adapting to opposite radiation type transducer, comprising a flowmeter pipe, two oblique holes are provided on the flowmeter pipe, the two oblique holes are arranged face to face and the hole bottoms are designed as blind holes, one ultrasonic transducer is installed in each oblique hole, and the two ultrasonic transducers directly radiate without intermediate reflector.

[0006] Preferably, the oblique angle and position design of the oblique hole make the transmission and reception paths of the two ultrasonic transducers form an effective measurement flow channel section inside the flowmeter pipe.

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

[0008] Preferably, the ultrasonic transducer is designed as opposite radiation type, directly transmitting and receiving ultrasonic signals, thereby directly measuring fluid flow rate without passing through reflector, reducing signal attenuation and improving measurement accuracy; the ultrasonic transducer and the internal structure of the oblique hole are designed in an integrated manner.

[0009] Preferably, the material and structure design of the flowmeter pipe meets the working condition requirements of fluid medium pressure and temperature, ensuring stable operation of the flowmeter in harsh environments.

[0010] Preferably, the end of the outer tube of the flow meter pipe is also provided with external threads, facilitating the installation of the flow meter in the pipeline system and ensuring the stability and sealing of the installation.

[0011] The beneficial effects of the present utility model are:

[0012] 1. High precision measurement: Since the ultrasonic transducers directly emit and receive ultrasonic signals to each other without the need for a reflector, signal attenuation is reduced, and measurement accuracy is improved.

[0013] 2. High stability: The flow meter pipe is designed in a sealed manner, avoiding the influence of fluid scouring and corrosion on the transducer, and improving the stability and service life of the flow meter.

[0014] 3. Easy to install and maintain: The flow meter pipe is externally threaded, facilitating the installation of the flow meter in the pipeline system and ensuring 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 requirements, making it easy to install and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is a schematic diagram of the three-dimensional structure of the present utility model;

[0016] Fig. 2 is a sectional view of the utility model. DETAILED DESCRIPTION

[0017] The present utility model will be further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical solutions of the present utility model, and cannot limit the protection scope of the present utility model.

[0018] As Figs. 1-2 shown, an ultrasonic flow meter adapted to a pair of ultrasonic transducers, comprising a flow meter pipe 1, the flow meter pipe 1 is provided with two inclined holes 2, the two inclined holes 2 are face-to-face arranged and the hole bottom is designed as a blind hole, one ultrasonic transducer 3 is respectively installed in each inclined hole 2, and the two ultrasonic transducers 3 directly emit and receive without an intermediate reflector.

[0019] Preferably, the inclination angle and position of the inclined hole 2 are designed so that the emission and reception paths of the two ultrasonic transducers 3 form an effective measurement flow channel cross section inside the flow meter pipe 1.

[0020] Preferably, the flow meter pipe 1 is designed in a sealed manner to ensure that the fluid medium does not leak through the inclined hole 2, and the ultrasonic transducer 3 is fixed in the inclined hole 2 through a sealing device, maintaining the overall sealing of the flow meter.

[0021] Preferably, the ultrasonic transducer 3 is of a direct transmission type, directly transmitting and receiving ultrasonic signals to each other, thereby directly measuring the fluid flow rate without the need of a reflector, reducing signal attenuation and improving measurement accuracy; the ultrasonic transducer 3 is integrally designed with the internal structure of the inclined opening 2

[0022] Preferably, the material and structural design of the flowmeter pipe 1 meet the working condition requirements of the fluid medium pressure and temperature, ensuring stable operation of the flowmeter in harsh environments.

[0023] Preferably, the end of the outer pipe of the flowmeter pipe 1 is also provided with external threads, facilitating the installation of the flowmeter in the pipe system and ensuring the stability and sealing of the installation.

[0024] Embodiment:

[0025] The flowmeter of the utility model is installed on three kinds of pipe diameters to detect the liquid flow in the pipe, and the detection data are as shown in Tables 1-3.

[0026]

[0027] Table 1 (table diameter: DN15, range ratio R400)

[0028]

[0029] Table 2 (table diameter: DN20, range ratio R400)

[0030]

[0031] Table 3 (table diameter: DN25, range ratio R400)

[0032] The data of the above embodiment prove that the ultrasonic flowmeter of the utility model has an error rate controlled within an acceptable range in the test experiments of three pipe diameters, high precision and strong stability.

[0033] The ultrasonic flowmeter of the utility model can be widely applied to the flow measurement of various fluid media, such as liquid and gas. The characteristics of high precision, high stability and easy installation and maintenance make the utility model have a wide application prospect in the fields of industrial automation and environmental monitoring.

[0034] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, several improvements and deformations can be made without departing from the technical principles of the utility model, and these improvements and deformations should also be regarded as the protection range of the utility model.

Claims

1. An ultrasonic flow meter adapted to a plucking transducer, characterized in that, Includes a flow meter tube (1), on which two oblique openings (2) are provided. These two oblique openings (2) are arranged face to face and the bottom of the openings is designed as blind holes. Each oblique opening (2) is equipped with an ultrasonic transducer (3). The two ultrasonic transducers (3) directly face each other without the need for an intermediate reflector.

2. The ultrasonic flow meter adapted to a plucking transducer according to claim 1, characterized in that, The tilt angle and position design of the oblique opening (2) make the transmission and reception paths of the two ultrasonic transducers (3) form an effective measurement flow channel cross section inside the flowmeter tube (1).

3. An ultrasonic flow meter adapted to a plucking 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). 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.

4. An ultrasonic flow meter adapted to a plucking transducer according to claim 1, characterized in that, The ultrasonic transducer (3) is a through-beam design, directly transmitting and receiving ultrasonic signals to each other, and is integrated with the internal structure of the oblique opening (2).

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

6. The ultrasonic flow meter according to any one of claims 1 to 5, characterized in that, The outer tube of the flow meter tube (1) is also provided with an external thread at the end, which facilitates the installation of the flow meter in the pipeline system and ensures the stability and sealing of the installation.

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