Vortex shedding flowmeter

Abstract

The utility model relates to the technical field of vortex shedding flow meters, and discloses a vortex shedding flow meter which comprises a main pipe, the left side and the right side of the main pipe are fixedly connected with first connecting pipes, the outer sides of the two first connecting pipes are fixedly connected with hoses, the outer sides of the two hoses are fixedly connected with protective films, and the protective films are fixedly connected with the main pipe. Waterproof films are fixedly connected to the inner walls of the two hoses, second connecting pipes are fixedly connected to the tail ends of the inner walls of the two waterproof films, external connecting pipes are fixedly connected to the tail ends of the two second connecting pipes, fixing rings are fixedly connected to the left sides and the right sides of the outer walls of the two protective films, and a fixing mechanism is installed at the bottom of the main pipe. The main pipe is fixed to the hose through the first connecting pipe and then connected with an external pipeline through the second connecting pipe and the external connecting pipe, vibration of the external pipeline is relieved through the flexibility of the hose, the waterproof film can play a sealing role, and the protective film can protect the hose.

Description

A vortex flow meter Technical Field

[0001] This utility model relates to the field of vortex flow meter technology, and in particular to a vortex flow meter. Background Technology

[0002] A vortex flow meter is a velocity-type flow meter that measures flow based on the Karman vortex street principle. A non-streamlined obstruction fluid is placed in the fluid. When the fluid velocity reaches a certain value, two rows of regular vortices will be generated alternately on both sides of the downstream obstruction fluid. These vortices are called the Karman vortex street. The frequency of vortex generation is proportional to the fluid velocity. By detecting the frequency of the vortices, the flow rate of the fluid can be calculated.

[0003] A search revealed Chinese Patent Publication No. CN221147746U, which discloses a vortex flow meter, relating to the field of flow meter technology. The flow meter includes a pipeline with a first sealing flange at its top. A detection component is bolted to the top of the first sealing flange. Second sealing flanges are located at both ends of the pipeline, with a sealing component at one end of each second sealing flange. This vortex flow meter uses the detection component to detect the flow rate of fluid inside the pipeline. The sealing component at one end of the second sealing flange ensures the seal at the connection between the pipeline and the fluid pipe, preventing leakage. A fastening component on the outside of the vortex flow meter body reinforces the flow meter body to prevent inaccurate readings due to vibrations caused by fluid flow during measurement. Existing vortex flow meters connect to external pipelines via a single connecting pipe, which means that vibrations in the pipeline can interfere with the normal flow of fluid, affecting the generation and shedding frequency of vortices, thus leading to measurement errors. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a vortex flow meter, which aims to improve the problem in the prior art that when there is vibration in the pipeline, it will interfere with the normal flow state of the fluid, affect the generation and shedding frequency of vortices, and thus lead to measurement errors.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a vortex flow meter, comprising a main pipe, wherein connecting pipe 1 is fixedly connected to both the left and right sides of the main pipe, flexible hoses are fixedly connected to the outer sides of both connecting pipe 1, protective membranes are fixedly connected to the outer sides of both flexible hoses, waterproof membranes are fixedly connected to the inner walls of both flexible hoses, connecting pipe 2 is fixedly connected to the ends of the inner walls of both waterproof membranes, external connecting pipes are fixedly connected to the ends of both connecting pipe 2, fixing rings are fixedly connected to the left and right sides of the outer walls of both protective membranes, and a fixing mechanism is installed at the bottom of the main pipe for fixing the vortex flow meter.

[0006] The above technical solution involves fixing a flexible hose to both sides of the main pipe via a connecting pipe, and then fixing a connecting pipe to the end of the flexible hose. The hose is connected to an external pipeline via an external pipe fixed to the end of the connecting pipe. During operation, the flexibility of the flexible hose helps to mitigate vibrations from the external pipeline. Meanwhile, the waterproof membrane inside the flexible hose provides a seal, the protective membrane provides protection to prevent the hose from being torn, and the fixing ring ensures that the flexible hose is securely fixed.

[0007] As a further description of the above technical solution:

[0008] The fixing mechanism includes a base plate, the top of which is located at the bottom of the main pipe. Fixing brackets are fixedly connected to the left and right sides of the bottom of the base plate. Cable ties are fixedly connected to the left and right ends of the front side of the top of the base plate. Push buttons are slidably connected to the left and right ends of the rear side of the top of the base plate. Fixing buckles are fixedly connected to the bottom of the two push buttons. Springs are fixedly connected to the rear side of the two fixing buckles.

[0009] The above technical solution involves aligning the base plate with the main pipe, then inserting two cable ties fixed on the base plate around the main pipe and into the corresponding holes at the rear end of the base plate. At this time, the cable ties push the fixing buckle backward. When the cable ties stop moving, the spring will push the corresponding fixing buckle forward to lock the cable ties. Then, the cable ties are fixed to the external wall through the fixing bracket. When disassembling the fixing mechanism, the push button is pushed backward first, and the fixing buckle used to fix the cable ties slides backward to loosen it. Then, the cable ties are pulled out to disassemble.

[0010] As a further description of the above technical solution:

[0011] Both ends of the two external tubes are fixedly connected to a fixing plate, and the outer walls of the two fixing plates are threaded with multiple screws at equal intervals.

[0012] The above technical solution involves connecting the external pipe to the external pipeline using screws and fixing plates.

[0013] As a further description of the above technical solution:

[0014] Both push buttons are fitted with rubber pads on their tops, and each rubber pad has a thumbtack fixedly connected to the middle of its top wall.

[0015] The above technical solution improves friction by fixing the rubber pad on the push button with a thumbtack.

[0016] As a further description of the above technical solution:

[0017] Both of the fixing brackets are fixedly connected to the bottom of a fixing plate, and both fixing plates are threaded with two screws on the front and back sides of their tops.

[0018] The above technical solution improves the stability of the mounting bracket by fixing the mounting plate with screw two.

[0019] As a further description of the above technical solution:

[0020] A groove is provided in the middle of the top wall of the base plate, and an anti-slip pad is fixedly connected to the top of the groove.

[0021] The above technical solution allows the anti-slip pad fixed in the groove to make the main pipe more stable.

[0022] As a further description of the above technical solution:

[0023] A diverter column is fixedly connected to the inner left end of the main pipe, and a detector is fixedly connected to the inner middle part of the main pipe.

[0024] The above technical solution involves using a flow divider to generate a Karman vortex street, and a detector to detect the liquid flow rate.

[0025] As a further description of the above technical solution:

[0026] The top of the main body is fixedly connected to the organism, and a display screen is fixedly connected to the front side of the organism.

[0027] The above technical solution allows the machine to display detection data via a screen on its surface.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the main pipe is fixed to the hose through connecting pipe one, and then connected to the external pipeline through connecting pipe two and external pipe. The flexibility of the hose can alleviate the vibration of the external pipeline, the waterproof membrane can play a sealing role, and the protective membrane can provide protection for the hose, thereby avoiding the vibration of the external pipeline from affecting the measurement effect.

[0030] 2. In this utility model, the base plate is fixed to the main pipe by cable ties, fixing buckles and springs, and then fixed to the external wall by a fixing bracket. When disassembling the fixing mechanism, first push the push button backward, the fixing buckle used to fix the cable tie slides backward to loosen it, and then pull out the cable tie to disassemble it, thereby achieving a convenient fixing effect for the vortex flow meter. Attached Figure Description

[0031] Figure 1 is a perspective view of a vortex flow meter proposed in this utility model;

[0032] Figure 2 is a front view of a vortex flow meter proposed in this utility model;

[0033] Figure 3 is a partial structural cross-sectional view of a vortex flowmeter proposed in this utility model;

[0034] Figure 4 is a split view of the fixing mechanism of a vortex flowmeter proposed in this utility model;

[0035] Figure 5 is an enlarged view of point A in Figure 4 of a vortex flowmeter proposed in this utility model.

[0036] Legend:

[0037] 1. Main pipe; 2. Fixing mechanism; 201. Base plate; 202. Fixing frame; 203. Cable tie; 204. Push button; 205. Fixing buckle; 206. Spring; 3. Connecting pipe one; 4. Flexible hose; 5. Protective membrane; 6. Waterproof membrane; 7. Connecting pipe two; 8. External pipe; 9. Fixing ring; 10. Fixing plate; 11. Screw one; 12. Rubber pad; 13. Thumbtack; 14. Fixing plate; 15. Screw two; 16. Groove; 17. Anti-slip pad; 18. Diverter column; 19. Detector; 20. Body; 21. Display screen. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Referring to Figures 2 and 3, an embodiment of this utility model is provided: a vortex flow meter, including a main pipe 1, with connecting pipes 3 fixedly connected to both the left and right sides of the main pipe 1, and hoses 4 fixedly connected to the outer sides of both connecting pipes 3. The main pipe 1 is connected to the hoses 4 through the connecting pipes 3. Protective membranes 5 are fixedly connected to the outer sides of both hoses 4, and waterproof membranes 6 are fixedly connected to the inner walls of both hoses 4. The protective membranes 5 and waterproof membranes 6 provide protection for the hoses 4. Connecting pipes 7 are fixedly connected to the inner ends of both waterproof membranes 6, and external pipes 8 are fixedly connected to the ends of both connecting pipes 7. The hoses 4 are connected to the external pipes 8 through the connecting pipes 7. Fixing rings 9 are fixedly connected to the left and right sides of the outer walls of both protective membranes 5. A fixing mechanism 2 is installed at the bottom of the main pipe 1. The fixing mechanism 2 is used to fix the vortex flow meter. Fixing plates 10 are fixedly connected to the ends of both external pipes 8. Multiple screws 11 are threaded at equal intervals on the outer walls of the two fixing plates 10. The screws 11 are used to fix the fixing plates 10 to the external pipes.

[0040] Specifically, hoses 4 are fixed to both sides of the main pipe 1 via connecting pipe 1 3, and connecting pipe 2 7 is fixed to the end of hose 4. The external pipe 8 fixed to the end of connecting pipe 2 7 is connected to the external pipeline. During operation, the flexibility of hose 4 helps to reduce the vibration of the external pipeline. At the same time, the waterproof membrane 6 fixed inside hose 4 can play a sealing role, while the protective membrane 5 fixed to hose 4 can protect hose 4 from being scratched. The fixing ring 9 can make hose 4 more secure. The external pipe 8 is connected to the external pipeline via screw 11 and fixing plate 10.

[0041] Referring to Figures 4 and 5, the fixing mechanism 2 includes a base plate 201. The top of the base plate 201 is located at the bottom of the main pipe 1. Fixing brackets 202 are fixedly connected to the left and right sides of the bottom of the base plate 201, and the base plate 201 is fixed to the wall via the fixing brackets 202. Cable ties 203 are fixedly connected to the left and right ends of the front top of the base plate 201, and push buttons 204 are slidably connected to the left and right ends of the rear top of the base plate 201. Fixing buckles 205 are fixedly connected to the bottom of each push button 204. The fixing buckles 205 are used for... For the fixing strap 203, springs 206 are fixedly connected to the rear side of the two fixing buckles 205. The springs 206 are used to push the fixing buckles 205. Rubber pads 12 are installed on the top of the two push buttons 204. Thumbtacks 13 are fixedly connected to the middle of the top wall of the two rubber pads 12. Thumbtacks 13 are used to fix the rubber pads 12. Fixing plates 14 are fixedly connected to the bottom of the two fixing brackets 202. Screws 15 are threadedly connected to the front and rear sides of the top of the two fixing plates 14. Screws 15 are used to install the fixing plates 14.

[0042] Specifically, the base plate 201 is aligned with the main pipe 1. Then, the two cable ties 203 fixed on the base plate 201 are inserted into the corresponding holes at the rear end of the base plate 201 after wrapping around the main pipe 1. At this time, the cable ties 203 will push the fixing buckles 205 one after another. When the cable ties 203 stop moving, the spring 206 will push the corresponding fixing buckles 205 back to lock the cable ties 203. Then, the fixing bracket 202 is fixed to the external wall. When disassembling the fixing mechanism 2, the push button 204 is pushed backward first. The fixing buckles 205 used to fix the cable ties 203 slide backward to release them. Then the cable ties 203 are pulled out for disassembly. The rubber pad 12 fixed on the push button 204 by the thumbtack 13 can increase its friction. The fixing plate 14 fixed by the screw 15 can improve the stability of the fixing bracket 202.

[0043] Referring to Figures 1, 3, and 4, a groove 16 is provided in the middle of the top wall of the base plate 201. An anti-slip pad 17 is fixedly connected to the top of the groove 16. The groove 16 is used to fix the anti-slip pad 17. A flow divider column 18 is fixedly connected to the inner left end of the main pipe 1. A detector 19 is fixedly connected to the inner middle of the main pipe 1. The flow divider column 18 and the detector 19 are used to detect the liquid flow rate. An organic body 20 is fixedly connected to the top of the main pipe 1. A display screen 21 is fixedly connected to the front of the organic body 20. The organic body 20 and the display screen 21 are used to display flow data.

[0044] Specifically, the anti-slip pad 17 fixed in the groove 16 makes the main pipe 1 more stable, the diverter column 18 is used to generate Karman vortex street, and the detector 19 is used to detect the liquid flow rate. The body 20 displays the detection data through the display screen 21 on it.

[0045] Working principle: When using a vortex flow meter, flexible hoses 4 are fixed to both sides of the main pipe 1 via connecting pipe 3. Connecting pipe 2 7 is fixed to the end of the flexible hose 4, and an external pipe 8 is fixed to the end of connecting pipe 2 7. The external pipe 8 fixed to the end of connecting pipe 2 7 connects to the external pipeline. During operation, the flexibility of the flexible hose 4 helps to reduce vibrations transmitted from the external pipeline. At the same time, the waterproof membrane 6 fixed inside the flexible hose 4 can seal the hose and prevent liquid from seeping into the hose. The protective membrane 5 fixed to the flexible hose 4 can protect the hose from being torn. The fixing ring 9 can make the flexible hose 4 more secure, thus avoiding the impact of external pipeline vibration on the measurement effect.

[0046] To improve the stability of the vortex flow meter during installation, the base plate 201 and the main pipe 1 are first aligned. Then, the two cable ties 203 fixed on the base plate 201 are inserted into the corresponding holes at the rear end of the base plate 201 after wrapping around the main pipe 1. At this time, the cable ties 203 will push the fixing buckles 205 one after the other. When the cable ties 203 stop moving, the spring 206 will push the corresponding fixing buckles 205 forward to lock the cable ties 203. Then, the cable ties 203 are fixed to the external wall through the fixing bracket 202. When disassembling the fixing mechanism 2, the push button 204 is pushed backward first, and the fixing buckles 205 used to fix the cable ties 203 slide backward to release them. Then, the cable ties 203 are pulled out to disassemble the meter, thus achieving a convenient fixing effect for the vortex flow meter.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vortex flow meter, comprising a main pipe (1), characterized in that: The main pipe (1) is fixedly connected to the left and right sides with connecting pipe 1 (3), and the two connecting pipe 1 (3) are fixedly connected to the outer sides with hoses (4). The two hoses (4) are fixedly connected to the outer sides with protective membranes (5). The two hoses (4) are fixedly connected to the inner walls with waterproof membranes (6). The two waterproof membranes (6) are fixedly connected to the inner walls of the two waterproof membranes (6). The two connecting pipes (7) are fixedly connected to the inner walls of the two waterproof membranes (6). The two connecting pipes (7) are fixedly connected to the outer walls of the two connecting pipes (7). The two protective membranes (5) are fixedly connected to the left and right sides with fixing rings (9). The bottom of the main pipe (1) is equipped with a fixing mechanism (2). The fixing mechanism (2) is used to fix the vortex flow meter.

2. The vortex flow meter according to claim 1, characterized in that: The fixing mechanism (2) includes a base plate (201), the top of which is located at the bottom of the main pipe (1). Fixing brackets (202) are fixedly connected to the left and right sides of the bottom of the base plate (201). Cable ties (203) are fixedly connected to the left and right ends of the front side of the top of the base plate (201). Push buttons (204) are slidably connected to the left and right ends of the rear side of the top of the base plate (201). Fixing buckles (205) are fixedly connected to the bottom of the two push buttons (204). Springs (206) are fixedly connected to the rear side of the two fixing buckles (205).

3. A vortex flowmeter according to claim 1, wherein: The ends of the two external pipes (8) are fixedly connected to a fixing plate (10), and the outer walls of the two fixing plates (10) are threaded with multiple screws (11) at equal intervals.

4. A vortex flowmeter according to claim 2, wherein: Both push buttons (204) are fitted with rubber pads (12) on their tops, and both rubber pads (12) are fixedly connected with thumbtacks (13) in the middle of their top walls.

5. A vortex flowmeter according to claim 2 wherein: The bottom of each of the two fixing brackets (202) is fixedly connected to a fixing plate (14), and the top front and rear sides of the two fixing plates (14) are threaded with screws (15).

6. A vortex flowmeter according to claim 2 wherein: The top wall of the base plate (201) has a groove (16) in the middle, and an anti-slip pad (17) is fixedly connected to the top of the groove (16).

7. A vortex flowmeter according to claim 1 wherein: A diversion column (18) is fixedly connected to the inner left end of the main pipe (1), and a detector (19) is fixedly connected to the inner middle part of the main pipe (1).

8. A vortex flowmeter according to claim 1 wherein: The top of the main body (1) is fixedly connected to the body (20), and the front side of the body (20) is fixedly connected to the display screen (21).

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