Clamping ultrasonic flowmeter

Abstract

The utility model discloses a clamping ultrasonic flowmeter which comprises a measuring pipeline and gaskets arranged at the two ends of the measuring pipeline and used for sealing, pipe section flanges on the two sides of the measuring pipeline are fixedly connected through long screws and clamp the measuring pipeline, the gaskets are clamped between the measuring pipeline and the pipe section flanges on the two sides, and a plurality of protrusions are distributed on the gaskets. Grooves corresponding to the protrusions are formed in the two ends of the measuring pipeline. The measuring pipeline is clamped between the pipe sections on the two sides, and the pipe sections on the two sides are fixedly connected through the long screws, so that the measuring pipeline can be used for measuring the flow between the pipe sections without being installed through the screws, installation through the screws is omitted through the structure, and the device is more convenient and efficient to install; the gaskets with the protrusions are inserted into the grooves in the two ends of the measuring pipeline, so that the gaskets and the measuring pipeline are connected more closely, and the overall sealing performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of ultrasonic flowmeters, in particular to a clamped ultrasonic flowmeter. Background Art

[0002] Ultrasonic flowmeters are mainly used to measure the flow rate of media fluids such as gas or liquid in industrial pipelines. Most existing ultrasonic flowmeters are equipped with mounting flanges or external screw holes for fixed connection, which are fixed to the flanges of the pipe sections on both sides. After fixed installation, ultrasonic transducers are used to alternately transmit and receive ultrasonic waves, measure the time difference between the forward and reverse propagation of ultrasonic waves along the air flow or liquid flow, and calculate the gas flow rate and flow rate. This flange installation method requires that mounting flanges or external screw holes be reserved on the ultrasonic flowmeter in advance, which is costly and inconvenient. In addition, this installation method has high requirements on the sealing degree of the screws. Utility Model Content

[0003] In view of the defects of the existing technology that the installation method of the external mounting flange is inconvenient and costly, the utility model provides a clamp-mounted ultrasonic flowmeter without mounting flanges at both ends. The ultrasonic flowmeter is clamped between the flanges of the pipe sections on both sides, making the structure more compact and the installation more convenient.

[0004] The utility model provides a clamped ultrasonic flowmeter, comprising a measuring pipe and gaskets arranged at both ends of the measuring pipe for sealing;

[0005] The flanges of the pipe sections on both sides of the measuring pipe are fixedly connected by long screws and clamp the measuring pipe therein. The gasket is clamped between the measuring pipe and the flanges of the pipe sections on both sides. There are several protrusions distributed on the gasket, and grooves corresponding to the protrusions are provided at both ends of the measuring pipe.

[0006] Furthermore, the protrusions include outer ring protrusions and inner ring protrusions.

[0007] Furthermore, an ultrasonic transducer assembly is installed in the measuring pipe, and the ultrasonic transducer assembly includes an ultrasonic transducer transmitting end installed on the measuring pipe, a first reflector installed directly below the ultrasonic transducer transmitting end, a second reflector installed diagonally to the first reflector in the measuring pipe, and an ultrasonic transducer receiving end installed directly above the second reflector.

[0008] Furthermore, two reflective blocks for mounting the first reflective sheet and the second reflective sheet are provided inside the measuring pipe, and the two reflective blocks are provided with slots for slidingly mounting the first reflective sheet and the second reflective sheet.

[0009] Furthermore, a top cover is installed on the top of the ultrasonic transducer transmitting end and the ultrasonic transducer receiving end, and a plurality of threading holes are provided on the top cover.

[0010] Furthermore, a flow meter head for reading measurement data is installed on the upper side of the top cover, and the data transmission lines of the ultrasonic transducer transmitting end and the ultrasonic transducer receiving end are connected to the flow meter head through the threading hole.

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

[0012] 1. By clamping the measuring pipe between the two pipe sections and fixing the two pipe sections with long screws, the flow measurement can be performed between the pipe sections without screw installation. This structure eliminates the need for screw installation, making the installation of the device more convenient and efficient.

[0013] 2. The setting of the gasket increases the friction between the measuring pipe and the pipe sections on both sides, making the seal tighter. By inserting the gasket with protrusions into the grooves at both ends of the measuring pipe, the connection between the gasket and the measuring pipe is more fitted, thereby enhancing the overall sealing.

[0014] 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

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the clamp-mounted ultrasonic flowmeter according to Example 1 of the present utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a clamp-mounted ultrasonic flowmeter according to Example 1 of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal parts structure of the clamp-mounted ultrasonic flowmeter in Example 1 of the present utility model;

[0019] Figure 4 This is a schematic structural diagram of the reflective block in Example 1 of the utility model;

[0020] Figure 5 This is a schematic diagram of the gasket structure of Example 2 of the utility model;

[0021] Numbers in the figure: 1. Measuring pipe; 11. Groove; 2. Gasket; 21. Protrusion; 211. Outer ring protrusion; 212. Inner ring protrusion; 3. Ultrasonic transducer assembly; 31. Ultrasonic transducer transmitting end; 32. Ultrasonic transducer receiving end; 33. First reflector; 34. Second reflector; 35. Reflection block; 351. Card slot; 36. Top cover; 361. Threading hole; 4. Flow meter head. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] Please refer to Figures 1-4 The utility model provides a clamped ultrasonic flowmeter, which includes a measuring pipe and gaskets for sealing arranged at both ends of the measuring pipe.

[0025] The flanges of the pipe sections on both sides of the measuring pipe are fixedly connected by long screws and clamp the measuring pipe therein. The gasket 2 is clamped between the measuring pipe and the flanges of the pipe sections on both sides. Several protrusions 21 are distributed on the gasket 2, and grooves 11 corresponding to the protrusions 21 are provided at both ends of the measuring pipe.

[0026] In this embodiment, the measuring pipe 1 is placed between the pipe sections on both sides, and long screws are used to pass through the mounting flanges of the pipe sections on both sides to fix the pipe sections on both sides together. The measuring pipe 1 is sealed and clamped between the pipe sections on both sides through the gaskets 2 on both sides of the measuring pipe 1. This structure eliminates the need for screw installation between the measuring pipe 1 and the pipe sections on both sides, making the installation more convenient and efficient, and making the structure more sealed; the setting of the gasket increases the friction between the measuring pipe and the pipe sections on both sides, making the seal tighter, and by inserting the gasket 2 with the protrusion 21 into the grooves 11 at both ends of the measuring pipe 1, the connection between the gasket 2 and the measuring pipe 1 is more fitted, thereby enhancing the overall sealing.

[0027] like Figure 3-Figure 4 As shown, an ultrasonic transducer assembly 3 is installed in the measuring pipe, and the ultrasonic transducer assembly 3 includes an ultrasonic transducer transmitting end 31 installed on the measuring pipe, a first reflector 33 installed directly below the ultrasonic transducer transmitting end 31, a second reflector 34 installed diagonally to the first reflector 33 in the measuring pipe, and an ultrasonic transducer receiving end 32 installed directly above the second reflector 34.

[0028] In this embodiment, when the water flow or air flow is in the forward direction, the ultrasonic transducer transmitting end 31 sends a signal, which is reflected by the first reflector 33 to the second reflector 34, and then reflected by the second reflector 34 to the ultrasonic transducer receiving end 32; when the water flow or air flow is in the reverse direction, the functions of the ultrasonic transducer transmitting end 31 and the ultrasonic transducer receiving end 32 are interchanged; the device adopts ultrasonic detection technology, using the ultrasonic transducer receiving end 32 and the ultrasonic transmitting end to alternately transmit and receive ultrasonic signals, and calculates the flow rate and flow of the gas or liquid by measuring the time difference between the forward and reverse propagation of the ultrasonic wave along the air flow or liquid flow.

[0029] like Figure 3-Figure 4 As shown, two reflective blocks 35 for mounting the first reflective sheet 33 and the second reflective sheet 34 are provided inside the measuring pipe, and the two reflective blocks 35 are provided with slots 351 for slidingly mounting the reflective sheets.

[0030] In this embodiment, the provision of the card slot 351 can facilitate the disassembly, cleaning or replacement of the first reflective sheet 33 and the second reflective sheet 34 , which is time-saving, efficient and cost-saving.

[0031] like Figure 3-Figure 4 As shown, a top cover 36 is installed on the top of the ultrasonic transducer transmitting end 31 and the ultrasonic transducer receiving end 32, and a plurality of threading holes 361 are provided on the top cover 36. A flow meter head 4 for reading measurement data is installed on the upper side of the top cover 36. The data transmission lines of the ultrasonic transducer transmitting end 31 and the ultrasonic transducer receiving end 32 are connected to the flow meter head 4 through the threading holes 361.

[0032] In this embodiment, the top cover 36 is used to protect the internal ultrasonic transducer transmitting end 31 and the ultrasonic transducer receiving end 32 from damage, and a plurality of wire threading holes 361 are provided on the upper side of the top cover 36 to facilitate the data transmission line to pass through and connect with the flow meter head 4. The setting of the flow meter head 4 makes it easy for observers to read values ​​such as flow rate and flow velocity.

[0033] Example 2

[0034] The difference from Example 1 is:

[0035] like Figure 5 As shown, the protrusions 21 on the gasket 2 include an outer ring protrusion 211 and an inner ring protrusion 212 .

[0036] In this embodiment, the gasket 2 can perform double-circle sealing on the flow pipe 1. The gasket 2 with an outer ring protrusion 211 and an inner ring protrusion 212 is installed at both ends of the flow pipe 1, and then the flow pipe 1 is clamped between the pipe sections on both sides. This double-circle protrusion 21 gasket 2 sealing form can enhance the tightness of the combination of the gasket 2 and the flow pipe 1, thereby enhancing the sealing performance of the flow pipe 1 and the pipe sections on both sides.

[0037] 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 measuring pipe (1) and gaskets (2) for sealing arranged at both ends of the measuring pipe (1); The pipe section flanges on both sides of the measuring pipe (1) are fixedly connected by long screws and clamp the measuring pipe (1) therein; the gasket (2) is clamped between the measuring pipe (1) and the pipe section flanges on both sides; a plurality of protrusions (21) are distributed on the gasket (2); and grooves (11) corresponding to the protrusions (21) are provided at both ends of the measuring pipe (1).

2. The clamp-on ultrasonic flowmeter according to claim 1, characterized in that: The protrusion (21) includes an outer ring protrusion (211) and an inner ring protrusion (212).

3. The clamp-on ultrasonic flowmeter according to claim 1, characterized in that: An ultrasonic transducer assembly (3) is installed in the measuring pipe, and the ultrasonic transducer assembly (3) comprises an ultrasonic transducer transmitting end (31) installed on the measuring pipe (1), a first reflecting plate (33) installed directly below the ultrasonic transducer transmitting end (31), a second reflecting plate (34) installed diagonally to the first reflecting plate (33) in the measuring pipe, and an ultrasonic transducer receiving end (32) installed directly above the second reflecting plate (34).

4. The clamp-on ultrasonic flowmeter according to claim 3, characterized in that: Two reflection blocks (35) for mounting the first reflection sheet (33) and the second reflection sheet (34) are provided inside the measuring pipe (1); and the two reflection blocks (35) are provided with slots (351) for slidingly mounting the first reflection sheet (33) and the second reflection sheet (34).

5. The clamp-on ultrasonic flowmeter according to claim 3, characterized in that: A top cover (36) is installed at the top end of the ultrasonic transducer transmitting end (31) and the ultrasonic transducer receiving end (32), and a plurality of threading holes (361) are provided on the top cover (36).

6. The clamp-on ultrasonic flowmeter according to claim 5, characterized in that: A flow meter head (4) for reading measurement data is installed on the upper side of the top cover (36), and the data transmission lines of the ultrasonic transducer transmitting end (31) and the ultrasonic transducer receiving end (32) pass through the threading hole (361) and are connected to the flow meter head (4).

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