A cleaning device for a transducer of a gas ultrasonic flowmeter

Abstract

The present application relates to a kind of cleaning device for the transducer of gas ultrasonic flowmeter, including transducer mounting sleeve, connecting channel is formed in its length direction inside the transducer mounting sleeve;One end of connecting channel is sleeved with transducer;The other end of connecting channel is sleeved with plug, plug is used to close the connecting channel of transducer mounting sleeve, prevent fluid from entering into transducer mounting sleeve, and accommodating cavity is formed in plug interior;Accommodating cavity is equipped with multiple micro linear motors for vibrating cleaning to transducer;The transducer cleaning device of the present application can effectively clean transducer without disassembling transducer, improve the working performance of transducer, reduce the measurement error of flowmeter, save the consumption of manpower and material resources, improve the continuity and stability of flowmeter.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of flow meter equipment, and particularly relates to a cleaning device for a transducer of a gas ultrasonic flow meter. BACKGROUND

[0002] A gas ultrasonic flow meter is an instrument that calculates fluid flow by measuring the time difference of ultrasonic waves in the fluid using the propagation characteristics of ultrasonic waves in the fluid. The gas ultrasonic flow meter has the advantages of no flow obstruction, no pressure loss, no movable parts, no calibration required, high measurement accuracy, and bidirectional measurement, and is widely used in the flow measurement of natural gas, coal gas, air and other gases.

[0003] The core component of a gas ultrasonic flow meter is a transducer, which is responsible for transmitting and receiving ultrasonic signals and directly contacts the fluid. The working performance of the transducer directly affects the measurement accuracy and reliability of the flow meter. However, during the operation of the gas ultrasonic flow meter, the surface of the transducer may be contaminated due to the deposition or attachment of impurities, water vapor, grease and other substances in the fluid, resulting in attenuation, distortion or interference of the ultrasonic signal, thereby affecting the sensitivity and stability of the transducer and causing measurement errors or failures of the flow meter. In order to ensure the working performance of the transducer, regular cleaning and maintenance of the transducer are required.

[0004] Currently, common transducer cleaning methods include manual cleaning and mechanical cleaning. Manual cleaning refers to using soft cloth, cotton swab and other tools, combined with alcohol, acetone and other solvents, to wipe or scrub the surface of the transducer. Mechanical cleaning refers to using ultrasonic cleaning machines, jet cleaning machines and other equipment to clean the transducer with ultrasonic waves or high-pressure water jets. These cleaning methods require disassembly of the transducer, interrupting the operation of the flow meter, increasing the consumption of manpower and material resources, and affecting the continuity and stability of the flow meter.

[0005] Therefore, how to design a transducer cleaning device for a gas ultrasonic flow meter that can effectively clean the transducer without disassembling the transducer, improve the working performance of the transducer, and reduce the measurement error of the flow meter is a technical problem to be solved in the field.

[0006] In view of the above manufacturing problems, improvement is needed. SUMMARY

[0007] The purpose of the present application is to provide a cleaning device and method for a transducer of a gas ultrasonic flow meter, which can effectively clean the transducer without disassembling the transducer, improve the working performance of the transducer, and reduce the measurement error of the flow meter.

[0008] In order to achieve the above objectives, the technical solution adopted by the present invention is: a cleaning device for the transducer of a gas ultrasonic flowmeter, comprising a transducer mounting sleeve, wherein a connecting channel is formed in the transducer mounting sleeve along its length direction; a transducer is sleeved on one end of the connecting channel; a plug is sleeved on the other end of the connecting channel, the plug is used to close the connecting channel of the transducer mounting sleeve to prevent the fluid from entering the transducer mounting sleeve, and an accommodating cavity is formed inside the plug; the accommodating cavity is installed with multiple miniature linear motors for vibrating and cleaning the transducer.

[0009] As a preferred embodiment of the present invention, a limit baffle is formed on one end of the transducer mounting sleeve close to the transducer; the limit baffle is located in the connecting channel, and is used to fix the transducer on the connecting channel of the transducer mounting sleeve.

[0010] As a preferred embodiment of the present invention, a positioning ring is formed on the outer end of the transducer mounting sleeve close to the plug. Correspondingly, a positioning plate is fixed to the outer end of the plug. When the plug is assembled in the connecting channel, the positioning plate is attached to the positioning ring.

[0011] As a preferred embodiment of the present invention, the outer diameter of the positioning ring is consistent with the outer diameter of the positioning plate.

[0012] As a preferred embodiment of the present invention, the plug is embedded in the connecting channel, and the end of the plug abuts against the end of the transducer.

[0013] As a preferred embodiment of the present invention, a plurality of mounting holes are arranged on the side wall of the plug, the mounting holes are communicated with the accommodating cavity, and the micro linear motor is located in the mounting holes.

[0014] As a preferred embodiment of the present invention, there are four mounting holes, which are equidistantly arranged on the plug in the circumferential direction.

[0015] As a preferred embodiment of the present invention, one end of the micro linear motor is tightly fitted with the inner wall of the plug, and the other end of the micro linear motor is tightly fitted with the back of the transducer. The vibration of the micro linear motor can be transmitted to the surface of the transducer to clean the surface of the transducer.

[0016] As a preferred embodiment of the present invention, an interface is provided on the outside of the plug for connecting to a controller and a power supply.

[0017] As a preferred embodiment of the present invention, the controller is used to control the switch and vibration frequency of the micro linear motor. The controller is connected to the outside of the plug through an interface. The controller includes a timer and a switch. The timer is used to set the vibration time of the micro linear motor. The switch is used to control the switch of the micro linear motor. The setting range of the timer is 1-10 s, and the control mode of the switch is manual or automatic.

[0018] The beneficial effects of the present invention are as follows: the present invention has a simple structure and an ingenious design. The transducer cleaning device of the present invention can effectively clean the transducer without disassembling the transducer, thereby improving the operating performance of the transducer, reducing the measurement error of the flow meter, saving manpower and material resources, and improving the continuity and stability of the flow meter. The transducer cleaning device of the present invention has a simple structure, is easy to install, simple to operate, easy to maintain, and low in cost, and is suitable for cleaning the transducers of various gas ultrasonic flow meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the transducer cleaning device of the present invention;

[0020] Figure 2 This is an exploded view of the structure of the transducer cleaning device of the present invention;

[0021] Figure 3 Schematic diagram of the structure of the micro linear motor of the present invention located inside the plug;

[0022] Figure 4 It is a schematic structural diagram of the plug of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the transducer mounting sleeve of the present invention;

[0024] Reference numerals in the figure: plug 1, transducer mounting sleeve 2, micro linear motor 3, transducer 4, accommodating cavity 10, positioning plate 11, mounting hole 12, connecting channel 20, positioning ring 21, limit baffle 22. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0026] Example:

[0027] like Figures 1-5 As shown, a transducer cleaning device for a gas ultrasonic flowmeter includes a transducer mounting sleeve 2, wherein a connecting channel 20 is formed in the transducer mounting sleeve 2 along its length; a transducer 4 is sleeved on one end of the connecting channel 20; a plug 1 is sleeved on the other end of the connecting channel 20, and the plug 1 is used to seal the connecting channel 20 of the transducer mounting sleeve 2 to prevent fluid from entering the transducer mounting sleeve 2. A receiving chamber 10 is formed inside the plug 1; the receiving chamber 10 is installed with multiple micro linear motors 3 for vibrating and cleaning the transducer 4;

[0028] The micro linear motor 3 is used for generating high frequency vibration, one end of the micro linear motor 3 is closely combined with the inner wall of the plug 1, and the vibration of the micro linear motor 23 can be transmitted to the surface of the transducer 4 to clean the surface of the transducer 4; the transducer cleaning device can effectively clean the transducer without disassembling the transducer, improve the working performance of the transducer, reduce the measurement error of the flowmeter, save the consumption of manpower and material resources, and improve the continuity and stability of the flowmeter. The transducer cleaning device has the advantages of simple structure, convenient installation, simple operation, convenient maintenance, low cost and suitability for transducer cleaning of various gas ultrasonic flowmeters.

[0029] Specifically, the transducer mounting sleeve 2 is formed with a limiting baffle 22 at the side end close to the transducer 4; the limiting baffle 22 is located in the connecting channel 20, and the limiting baffle 22 is used for fixing the transducer 4 on the connecting channel 20 of the transducer mounting sleeve 2.

[0030] The transducer mounting sleeve 2 is formed with a positioning ring 21 at the side outer end close to the plug 1, and the plug 1 is correspondingly provided with a positioning plate 11 at the outer end, the positioning plate 11 is attached to the positioning ring 21 when the plug 1 is assembled in the connecting channel 20; the plug 1 is embedded in the connecting channel 20, and the end of the plug 1 abuts against the end of the transducer 4, wherein the transducer mounting sleeve 2 is provided with a thread at the side close to the plug 1 for connecting the plug 1, the plug 1 is screwed on the thread of the transducer mounting sleeve 2, so that the internal cavity of the plug 1 and the back of the transducer 4 form a sealed space, finally, the controller and the power supply are connected to the outside of the plug 1 through the interface, and the installation of the transducer cleaning device is completed.

[0031] The outer diameter of the positioning ring 21 is consistent with the outer diameter of the positioning plate 11.

[0032] A plurality of mounting holes 12 are arranged on the side wall of the plug 1, the mounting holes 12 are communicated with the containing cavity 10, and the micro linear motor 3 is located in the mounting hole 12; in the embodiment, the mounting hole 12 is provided with four, and is arranged equidistantly on the plug 1 in the circumferential direction.

[0033] One end of the micro linear motor 3 is closely combined with the inner wall of the plug 1, and the other end of the micro linear motor 3 is closely combined with the back of the transducer 4, and the vibration of the micro linear motor 3 can be transmitted to the surface of the transducer 4 to clean the surface of the transducer 4.

[0034] The outer part of the plug 1 is provided with an interface for connecting a controller and a power supply, the controller being used to control the switch and vibration frequency of the micro linear motor 3, the controller being connected to the outside of the plug 1 through the interface, the controller comprising a timer and a switch, the timer being used to set the vibration time of the micro linear motor 3, and the switch being used to control the switch of the micro linear motor 3, the setting range of the timer being 1-10 s, and the control mode of the switch being manual or automatic.

[0035] The power supply described in the embodiment is used to provide electric energy for the micro linear motor 3 and the controller, the power supply being connected to the outside of the plug 1 through the interface, and the type of the power supply can be a battery, solar energy, wind energy or other renewable energy or other external power supply.

[0036] As shown in Figures 1-2 The installation method of the transducer cleaning device is as follows:

[0037] Firstly, the transducer 4 is inserted into the opening of the transducer mounting sleeve 2, the surface of the transducer 4 is aligned with the inner wall of the measuring pipeline of the flowmeter, then the plug 1 is screwed on the threads of the transducer mounting sleeve 2, so that the internal cavity of the plug 1 and the back of the transducer 4 form a sealed space, finally, the controller and the power supply are connected to the outside of the plug 1 through the interface, and the installation of the transducer cleaning device is completed.

[0038] The working principle of the transducer cleaning device described in the embodiment is as follows:

[0039] When the transducer 4 needs to be cleaned, the switch is controlled by the controller, so that the micro linear motor 3 starts to work, the micro linear motor 3 generates high-frequency vibration, the vibration frequency is 20-100 kHz, the vibration amplitude is 0.1-1 mm, the vibration direction is perpendicular to the surface of the transducer 4, and the vibration time is 1-10 s, which is set by the timer of the controller.

[0040] The vibration of the micro linear motor 3 can be transmitted to the surface of the transducer 4 through the inner wall of the plug 1 and the back of the transducer 4, so as to clean the surface of the transducer 4, shake off or break the impurities, water vapor and grease and other substances attached to the surface of the transducer 4, so as to restore the working performance of the transducer 4 and improve the measurement accuracy of the flowmeter. When the vibration time of the micro linear motor 3 reaches the set value, the controller controls the switch, so that the micro linear motor 3 stops working, and the cleaning of the transducer 4 is completed.

[0041] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application, and various modifications to the embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without the use of the inventive faculty. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0042] Although the terms such as plug 1, transducer mounting sleeve 2, micro linear motor 3, transducer 4, accommodating cavity 10, positioning plate 11, mounting hole 12, connecting channel 20, positioning ring 21, limiting baffle 22, etc. are used more frequently in the drawings, the possibility of using other terms is not excluded; the use of these terms is only for the convenience of describing and explaining the essence of the present application; any kind of additional limitation is contrary to the spirit of the present application.

Claims

1. A cleaning device for a transducer of a gas ultrasonic flow meter, characterized by: The utility model relates to a kind of cleaning device of flowmeter transducer, including transducer mounting sleeve (2), connecting channel (20) is formed in its length direction inside the transducer mounting sleeve (2);One end of connecting channel (20) is sleeved with transducer (4);The other end of connecting channel (20) is sleeved with plug (1), plug (1) is used to close the connecting channel (20) of transducer mounting sleeve (2), prevent fluid from entering into transducer mounting sleeve (2), plug (1) is formed with containing cavity (10) inside;Containing cavity (10) is installed with multiple micro linear motor (3) for vibrating cleaning to transducer (4); The side end of the transducer mounting sleeve (2) close to the transducer (4) is formed with a limiting baffle (22), the limiting baffle (22) is located in the connecting channel (20), and the limiting baffle (22) is used for fixing the transducer (4) on the connecting channel (20) of the transducer mounting sleeve (2); The plug (1) is embedded in the connecting channel (20), and the end of the plug (1) abuts against the end of the transducer (4); The sidewall of the plug (1) is provided with multiple mounting holes (12), the mounting holes (12) are communicated with the containing cavity (10), and the micro linear motor (3) is located in the mounting hole (12); One end of the micro linear motor (3) is tightly attached to the inner wall of the plug (1), the other end of the micro linear motor (3) is tightly attached to the back of the transducer (4), the vibration of the micro linear motor (3) can be transmitted to the surface of the transducer (4) to clean the surface of the transducer (4); The plug (1) is provided with an interface on the outside, which is used for connecting the controller and the power supply; The installation method of the cleaning device is as follows: the transducer is inserted into the opening of the transducer mounting sleeve, the surface of the transducer is aligned with the inner wall of the measuring pipeline of the flowmeter, then the plug is screwed on the threads of the transducer mounting sleeve, the internal cavity of the plug forms a sealed space with the back of the transducer, finally, the controller and the power supply are connected to the outside of the plug through the interface, and the installation of the transducer cleaning device is completed.

2. A cleaning device for a transducer of a gas ultrasonic flow meter according to claim 1, characterized in that: The outer end of the side of the transducer mounting sleeve (2) close to the plug (1) is formed with a positioning ring (21), and the outer end of the plug (1) is fixedly provided with a positioning plate (11), when the plug (1) is assembled in the connecting channel (20), the positioning plate (11) is attached to the positioning ring (21).

3. A cleaning device for a transducer of a gas ultrasonic flow meter according to claim 2, characterized in that: The outer diameter of the positioning ring (21) is consistent with the outer diameter of the positioning plate (11).

4. A cleaning device for a transducer of a gas ultrasonic flow meter according to claim 1, characterized in that: The mounting holes (12) are arranged in four, and are arranged equidistantly on the plug (1) in the circumferential direction.

5. A cleaning device for a transducer of a gas ultrasonic flow meter according to claim 1, characterized in that: The controller is used for controlling the switch and vibration frequency of the micro linear motor (3), the controller is connected to the outside of the plug (1) through the interface, the controller includes a timer and a switch, the timer is used for setting the vibration time of the micro linear motor (3), the switch is used for controlling the switch of the micro linear motor (3), the setting range of the timer is 1-10 s, and the control mode of the switch is manual or automatic.

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