External clamping type ultrasonic flowmeter

Abstract

The utility model discloses an external clamping type ultrasonic flowmeter which comprises a bottom plate, clamping plates, a meter head shell, an ultrasonic transducer transmitting end and an ultrasonic transducer receiving end, wherein the clamping plates and the bottom plate are clamped on the two sides of a pipe section, the meter head shell is installed on the bottom plate, and the ultrasonic transducer transmitting end and the ultrasonic transducer receiving end are installed on the bottom plate and attached to one side of the pipe section. The clamping plate is in an arc shape with the same radian as the outer wall of the pipe section, first screw holes are formed in the four corners of the clamping plate respectively, and second screw holes corresponding to the first screw holes are formed in the four corners of the bottom plate respectively. Long screws penetrate through the first screw holes and the second screw holes to clamp the clamping plate and the bottom plate on the two sides of the outer wall of the pipe section. The clamping plate and the bottom plate are fixedly clamped on the two sides outside the pipe section, so that the ultrasonic flowmeter can measure data of liquid / gas in the pipe section outside the pipe section, and the device is flexible, small and exquisite, convenient to disassemble, convenient to measure different pipe sections for multiple times, free of disconnecting the pipe section, convenient and fast to install and convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to an external clamp-on ultrasonic flowmeter. Background Art

[0002] Ultrasonic flowmeters are mainly used for flow measurement of medium fluids such as gas or liquid in industrial pipelines. Most existing ultrasonic flowmeters are installed in the form of measuring pipes between the flow pipe sections on both sides. The measuring pipes need to be installed before the pipe sections are installed. If you want to install the pipe section for measurement after the pipe section is installed, you need to disconnect the pipe section and then add the measuring pipe section. The process is cumbersome and cannot meet the measurement needs flexibly and conveniently. It also has high requirements for the airtightness of the measuring pipe and the pipe sections on both sides, and the cost is high. Utility Model Content

[0003] In view of the fact that the existing technology has the problems of poor flexibility of the measuring pipeline and high cost and cumbersome and inconvenient installation method, the utility model provides an ultrasonic flowmeter that is easy to install. This device can be clamped on both sides of the pipeline without disconnecting the pipe section, and the installation can be completed flexibly and conveniently.

[0004] The utility model provides an external clamp-on ultrasonic flowmeter, comprising a base plate, clamping plates clamped to the base plate on both sides of a pipe section, a meter head housing mounted on the base plate, and an ultrasonic transducer transmitting end and an ultrasonic transducer receiving end mounted on the base plate and attached to one side of the pipe section;

[0005] The splint is in the shape of an arc with the same curvature as the outer wall of the pipe section, and the four corners of the splint are respectively provided with first screw holes, and the four corners of the base plate are respectively provided with second screw holes corresponding to the first screw holes; the splint and the base plate are clamped on both sides of the outer wall of the pipe section by long screws passing through the first screw holes and the second screw holes.

[0006] Furthermore, a matching groove that can be matched with the outer wall of the pipe section is provided on one side of the bottom plate, and the gap between the matching groove and the outer wall of the pipe section is filled with a coupling agent.

[0007] Furthermore, the matching groove is provided with two mounting holes for mounting the ultrasonic transducer transmitting end and the ultrasonic transducer receiving end.

[0008] Furthermore, the ultrasonic transducer transmitting end and the ultrasonic transducer receiving end are both inclined inward at a 45-degree angle relative to each other, and the ultrasonic wave is emitted by the ultrasonic transducer transmitting end, passes through the outer wall of the pipe section, and is reflected by the inner wall of the pipe section on the other side to enter the ultrasonic transducer receiving end.

[0009] Furthermore, a window hole is provided on the meter head housing, and a flow meter head for reading values ​​is installed on a side of the inside of the meter head housing close to the window hole, and the flow value is read through the window hole.

[0010] Furthermore, the meter head housing and the base plate are fixedly installed by screws.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The clamping plate and base are respectively set on both sides of the pipe and fixedly connected by long screws, so that the ultrasonic flow meter transmitting end and the ultrasonic flow meter receiving end can transmit and receive ultrasonic signals outside the pipe section to complete the measurement of liquid / gas data in the pipe section. This device is flexible and compact, and easy to disassemble, which is convenient for multiple measurements of different pipe sections without disconnecting the pipe section. The installation method is convenient and easy to clean.

[0013] It should be understood that the contents described in the summary of the utility model are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easier to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 It is a schematic diagram of the overall structure of the ultrasonic flowmeter;

[0016] Figure 2 Schematic diagram of the bottom structure of the base plate;

[0017] Figure 3 This is a schematic diagram of the meter housing structure;

[0018] Figure 4 Schematic diagram of the top structure of the base plate;

[0019] Numbers in the figure: 1, bottom plate; 11, second screw hole; 12, matching groove; 2, clamping plate; 21, first screw hole; 3, meter head housing; 31, window hole; 4, ultrasonic transducer transmitting end; 5, ultrasonic transducer receiving end; 6, mounting hole. DETAILED DESCRIPTION

[0020] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0021] Please refer to Figures 1-4The utility model provides an external clamp-on ultrasonic flowmeter, comprising a base plate 1, clamping plates 2 clamped to the base plate 1 on both sides of a pipe section, a meter head housing 3 mounted on the base plate 1, and an ultrasonic transducer transmitting end 4 and an ultrasonic transducer receiving end 5 mounted on the base plate 1 and attached to one side of the pipe section;

[0022] The splint 2 is in the shape of an arc with the same curvature as the outer wall of the pipe section. First screw holes 21 are respectively provided around the splint 2, and second screw holes 11 corresponding to the first screw holes 21 are respectively provided around the base plate 1. Long screws are passed through the first screw holes 21 and the second screw holes 11 to clamp the splint 2 and the base plate 1 on both sides of the outer wall of the pipe section; a matching groove 12 that can be matched with the outer wall of the pipe section is provided on one side of the base plate 1, and the gap between the matching groove 12 and the outer wall of the pipe section is filled with a coupling agent.

[0023] In this embodiment, the clamping plate 2 and the base plate 1 are respectively arranged on both sides of the outer wall of the pipe section, and the first screw hole 21 and the second screw hole 11 are fixedly connected by long screws, so that the clamping plate 2 and the base plate 1 are fixedly clamped on both sides of the outer wall of the pipe section; since there is a gap between the matching groove 12 and the outer wall of the pipe section, a coupling agent is used to fill the gap so that the matching groove 12 and the outer wall of the pipe section fit tightly, which not only enhances the firmness of the device but also ensures the working efficiency of the ultrasonic transducer 4 on the inner side of the base plate 1; this clamping installation method is directly installed on the outside of the pipe section, which is not only simple and convenient to install and disassemble, but also saves time and effort and can realize the reading and monitoring of data such as the flow rate and flow velocity of the pipe section without disassembling the pipe section.

[0024] like Figure 2 and Figure 4 As shown, the matching groove is provided with two mounting holes 6 for mounting an ultrasonic transducer transmitting end 4 and an ultrasonic transducer receiving end 5 .

[0025] In this embodiment, the ultrasonic transducer transmitting end 4 and the ultrasonic transducer receiving end 5 are installed into the mounting hole 6 in sequence and then fixedly connected with screws. The setting of the mounting hole 6 can facilitate the installation of the ultrasonic transducer transmitting end 4 and the ultrasonic transducer receiving end 5, and can also make the transmission and reception of ultrasonic waves smoother.

[0026] like Figure 2 As shown, the ultrasonic transducer transmitting end 4 and the ultrasonic transducer receiving end 5 are both inclined inward at a 45-degree angle relative to each other. The ultrasonic wave is emitted by the ultrasonic transducer transmitting end 4, passes through the outer wall of the pipe section, and is reflected by the inner wall of the pipe section on the other side to enter the ultrasonic transducer receiving end 5.

[0027] In this embodiment, ultrasonic waves are emitted by the ultrasonic transducer transmitting end 4. The ultrasonic waves are emitted at a 45-degree angle, pass through the outer wall of the pipe section and the liquid / gas in the pipe, and then are reflected at a right angle by the inner wall of the other end of the pipe section, and then pass through the liquid / gas in the pipe and the outer wall of the pipe section, and finally enter the ultrasonic transducer receiving end 5. The structure in which the ultrasonic transducer transmitting end 4 and the ultrasonic transducer receiving end 5 are at a 45-degree angle mainly serves to facilitate reflection with the inner wall of the pipe section. This structure can complete ultrasonic reflection simply and efficiently.

[0028] like Figure 1 and Figure 3 As shown, the meter head housing 3 is fixed to the base plate 1 by screws, and a window hole 31 is provided on the meter head housing 3. A flow meter head for reading the value is installed on the side of the inside of the meter head housing 3 close to the window hole 31, and the flow value is read through the window hole 31.

[0029] In this embodiment, the setting of the window hole 31 makes it easy for the observer to quickly read the flow meter data. The header shell 3 and the base plate 1 are installed by screws, which facilitates the installation and removal of the internal components of the header shell 3. After the internal components of the header shell 3 are installed, the header shell 3 and the base plate 1 can be fixed with screws.

[0030] It should be understood that the specific embodiments described above are only used to explain the present invention and are not intended to limit the present invention. Obvious changes or modifications derived from the spirit of the present invention are still within the scope of protection of the present invention.

Claims

1. A clamp-on ultrasonic flowmeter, characterized in that: It comprises a base plate (1), clamping plates (2) clamped to the base plate (1) on both sides of the pipe section, a meter head housing (3) mounted on the base plate (1), and an ultrasonic transducer transmitting end (4) and an ultrasonic transducer receiving end (5) mounted on the base plate (1) and attached to one side of the pipe section; The clamping plate (2) is in the shape of an arc with the same arc as the outer wall of the pipe section, and the four corners of the clamping plate (2) are respectively provided with first screw holes (21), and the four corners of the base plate (1) are respectively provided with second screw holes (11) corresponding to the first screw holes (21); the clamping plate (2) and the base plate (1) are clamped on both sides of the outer wall of the pipe section by long screws passing through the first screw holes (21) and the second screw holes (11).

2. The clamp-on ultrasonic flowmeter according to claim 1, characterized in that: A matching groove (12) that can be matched and installed with the outer wall of the pipe section is provided on one side of the bottom plate (1), and a coupling agent is used to fill the gap between the matching groove (12) and the outer wall of the pipe section.

3. The clamp-on ultrasonic flowmeter according to claim 2, characterized in that: The matching groove (12) is provided with two mounting holes (6) for mounting the ultrasonic transducer transmitting end (4) and the ultrasonic transducer receiving end (5).

4. The clamp-on ultrasonic flowmeter according to claim 1, wherein: The ultrasonic transducer transmitting end (4) and the ultrasonic transducer receiving end (5) are both inclined inwardly at a 45-degree angle relative to each other, and ultrasonic waves are emitted through the ultrasonic transducer transmitting end (4), pass through the outer wall of the pipe section, and are reflected by the inner wall of the pipe section on the other side to enter the ultrasonic transducer receiving end (5).

5. The clamp-on ultrasonic flowmeter according to claim 1, characterized in that: A window hole (31) is provided on the meter housing (3), and a flow meter head for reading values ​​is installed on a side of the meter housing (3) close to the window hole (31), and the flow value is read through the window hole (31).

6. The clamp-on ultrasonic flowmeter according to claim 1, characterized in that: The meter head housing (3) and the bottom plate (1) are fixedly mounted by screws.

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