Anti-seismic device of vortex shedding flowmeter

Abstract

The utility model discloses an anti-seismic device of a vortex shedding flowmeter, and belongs to the technical field of vortex shedding flowmeters, the anti-seismic device of the vortex shedding flowmeter comprises a pipeline and a flowmeter arranged at the top of the pipeline, both ends of the pipeline are communicated and connected with communicating pipes, the outer walls of both ends of the pipeline are fixedly connected with bosses, and the bosses are fixedly connected with the pipeline. The side, close to the communicating pipe, of the boss is provided with first flange connectors, a connecting rod penetrating through the boss is fixedly connected between the first flange connectors, the two ends of the connecting rod are each sleeved with a spring, and the connecting rod can stretch out and draw back in a matched mode through the springs arranged at the two ends of the connecting rod in a sleeving mode and is used for absorbing transverse impact force. Meanwhile, energy transfer caused by vibration, impact or other motion forms is reduced through damping force between the damping rubber sleeve installed at the boss and the guide rod, so that the energy absorption effect is improved, the flow meter at the top of the pipeline can normally record and measure the flow of liquid, and shock resistance of the vortex shedding flowmeter is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of vortex flowmeters, and more specifically to an anti-vibration device for vortex flowmeters. Background Art

[0002] The vortex flowmeter is developed and produced based on the Karman vortex principle. It is mainly used for flow measurement of industrial pipeline media, such as gas, liquid, steam and other media. It is characterized by small pressure loss, large range, high accuracy, and is almost unaffected by fluid density, pressure, temperature, viscosity and other parameters when measuring working volume flow. There are no movable mechanical parts, so it has high reliability and low maintenance. The instrument parameters can be stable for a long time.

[0003] When some vortex flowmeters are in use, the conduits at both ends may be vibrated, which is then transmitted to the pipe at the bottom of the flowmeter. When the pipe is subjected to lateral vibration, since the conduit at the bottom of the vortex flowmeter is directly connected to the pipe, and the vortex flowmeter is subjected to lateral vibration, it will affect the normal recording and measurement of the vortex flowmeter. At this time, the vortex flowmeter cannot normally record and measure the liquid flow. An existing patent for a seismic device for a vortex flowmeter, with the patent authorization number CN215573132 U, is that the mounting plate at the lower end of the stainless steel bellows compensator is not connected to the rectangular plate at the lower end of the pipe, and the pipe is fixed by a fixing tube. The fixed pipe will not vibrate with the residual force of the stainless steel bellows compensator, so that the flowmeter at the top of the pipe can normally record and measure the liquid flow.

[0004] However, as a flexible pipeline, the stainless steel bellows compensator in the patent authorization number CN 215573132 U is prone to bend downward and deform under the action of gravity for a long time, and will produce greater oscillation under the action of "water hammer", which is not conducive to the seismic resistance of the vortex flowmeter. Therefore, we propose an anti-seismic device for the vortex flowmeter to solve the above problems. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an anti-seismic device for a vortex flowmeter, which can be used to absorb lateral impact force by cooperating and expanding between springs sleeved at both ends of a connecting rod. At the same time, the damping force between a damping rubber sleeve installed at the boss and the guide rod can reduce energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect. The flow meter at the top of the pipeline can normally record and measure the liquid flow, which is beneficial to the anti-seismic of the vortex flowmeter.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A seismic-resistant device for a vortex flowmeter comprises a pipeline and a flowmeter installed on the top of the pipeline, wherein both ends of the pipeline are connected with a connecting pipe;

[0008] The outer walls of both ends of the pipeline are fixedly connected with bosses, a first flange joint is provided on the side of the boss close to the connecting pipe, and a connecting rod passing through the boss is fixedly connected between the first flange joints, and both ends of the connecting rod are sleeved with springs, one end of the spring is connected to the first flange joint, and the other end of the spring is connected to the boss;

[0009] A guide rod penetrating the boss is fixedly connected between the bottoms of the two first flange joints, and a damping rubber sleeve is installed at the junction of the guide rod and the boss;

[0010] A connecting pipe is provided at one end of the connecting pipe away from the pipeline, a sealing rubber ring is embedded in the outer wall of one end of the connecting pipe close to the connecting pipe, and the sealing rubber ring abuts against the inner wall of the connecting pipe, and the outer walls at both ends of the connecting pipe are fixedly connected with a second flange joint.

[0011] Furthermore, a connection seat is fixedly connected to the edge of the outer wall of the flow meter, and the connection seat is connected to a protective cover via a damping hinge.

[0012] Furthermore, a scraper bar is provided on the surface of the protective cover close to the flow meter, and the scraper bar abuts against the dial of the flow meter.

[0013] Furthermore, a rotating rod is rotatably connected to the surface of the protective cover away from the scraper strip, and the through end of the rotating rod is connected to the scraper strip. A handle is installed at one end of the rotating rod away from the scraper strip.

[0014] Furthermore, a through hole is provided at the joint between the boss and the connecting rod, and the inner diameter of the through hole is matched with the outer diameter of the connecting rod.

[0015] Furthermore, the inner wall of the damping rubber sleeve abuts against the outer wall of the guide rod.

[0016] Furthermore, the first flange joint and the second flange joint are provided with assembly holes on their surfaces.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this scheme, when the liquid flow generates a lateral impact, the connecting pipe will move in the axial position of the connecting pipe, and at the same time, the boss will cooperate with the connecting rod to slide, and the springs installed at both ends of the connecting rod will cooperate to expand and contract to absorb the lateral impact force. At the same time, the damping force between the damping rubber sleeve installed on the boss and the guide rod can reduce the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect and avoiding the situation where the pipeline jumps left and right due to the rebound force of the spring. The gap at the joint of the connecting pipe and the connecting pipe is filled with a sealing rubber ring to prevent liquid leakage. The flow meter on the top of the pipeline can normally record and measure the liquid flow, which is beneficial to the seismic resistance of the vortex flowmeter.

[0019] (2) In this scheme, a protective cover is provided to provide good protection for the dial of the flow meter, and the protective cover is connected to the connecting seat through a damping hinge, which facilitates the opening and automatic resetting of the protective cover. By driving the rotating rod to rotate using a handle, the scraper cleans the dial of the flow meter, which is conducive to manual reading of the flow meter dial. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the connecting pipe structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the connecting pipe structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the guide rod structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the scraper strip structure of the utility model.

[0025] Description of the numbers in the figure:

[0026] Pipeline; 2. Flow meter; 3. Connecting pipe; 4. Sealing rubber ring; 5. Boss; 6. First flange joint; 7. Connecting rod; 8. Spring; 9. Guide rod; 10. Damping rubber sleeve; 11. Connecting pipe; 12. Second flange joint; 13. Connecting seat; 14. Protective cover; 15. Scraper strip; 16. Rotating rod; 17. Handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model. Example

[0028] See also Figure 1-5 , an anti-seismic device for a vortex flowmeter, comprising a pipeline 1 and a flowmeter 2 installed on the top of the pipeline 1, and both ends of the pipeline 1 are connected with a connecting pipe 3;

[0029] The outer walls of both ends of the pipeline 1 are fixedly connected with bosses 5, and the side of the boss 5 close to the connecting pipe 3 is provided with a first flange joint 6, and a connecting rod 7 penetrating the boss 5 is fixedly connected between the first flange joints 6, and both ends of the connecting rod 7 are sleeved with springs 8, one end of the spring 8 is connected to the first flange joint 6, and the other end of the spring 8 is connected to the boss 5;

[0030] A guide rod 9 penetrating the boss 5 is fixedly connected between the bottoms of the two first flange joints 6, and a damping rubber sleeve 10 is installed at the junction of the guide rod 9 and the boss 5;

[0031] A connecting pipe 11 is provided at one end of the connecting pipe 3 away from the pipeline 1, a sealing rubber ring 4 is embedded on the outer wall of one end of the connecting pipe 3 close to the connecting pipe 11, and the sealing rubber ring 4 abuts against the inner wall of the connecting pipe 11, and the outer walls of both ends of the connecting pipe 11 are fixedly connected with second flange joints 12;

[0032] It should be noted that, by connecting the two second flange joints 12 to the pipelines respectively, when the liquid flow generates a lateral impact, that is, the "water hammer phenomenon", the connecting pipe 3 will move in the axial position of the connecting pipe 11, and at the same time make the boss 5 cooperate with the connecting rod 7 to slide, and the springs 8 mounted on both ends of the connecting rod 7 cooperate to expand and contract to absorb the lateral impact force. At the same time, the damping force between the damping rubber sleeve 10 installed at the boss 5 and the guide rod 9 reduces the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect, avoiding the rebound force of the spring 8 causing the pipeline 1 to jump left and right, and filling the gap at the junction of the connecting pipe 3 and the connecting pipe 11 with the sealing rubber ring 4 to prevent liquid leakage. The flow meter 2 at the top of the pipeline 1 can normally record and measure the liquid flow, which is beneficial to the seismic resistance of the vortex flowmeter.

[0033] like Figure 1 , Figure 2 As shown, a connection seat 13 is fixedly connected to the edge of the outer wall of the flow meter 2, and the connection seat 13 is connected to a protective cover 14 through a damping hinge;

[0034] It should be noted that the protective cover 14 can provide good protection for the dial of the flow meter 2, and the protective cover 14 is connected to the connecting seat 13 via a damping hinge, which facilitates the opening and automatic resetting of the protective cover 14.

[0035] like Figure 1 , Figure 5 As shown, a scraper strip 15 is provided on the surface of the protective cover 14 close to the flow meter 2, and the scraper strip 15 abuts against the dial of the flow meter 2, and a rotating rod 16 is rotatably connected to the surface of the protective cover 14 away from the scraper strip 15, and the through end of the rotating rod 16 is connected to the scraper strip 15, and a handle 17 is installed on the end of the rotating rod 16 away from the scraper strip 15;

[0036] It should be noted that the handle 17 is used to drive the rotating rod 16 to rotate, so that the scraper 15 cleans the dial of the flow meter 2, which is conducive to manually reading the reading on the dial of the flow meter 2.

[0037] like Figure 2 As shown, a through hole is provided at the joint of the boss 5 and the connecting rod 7, and the inner diameter of the through hole is matched with the outer diameter of the connecting rod 7;

[0038] It should be noted that the stability of the boss 5 in cooperation with the connecting rod 7 during the sliding process is ensured.

[0039] like Figure 4 As shown, the inner wall of the damping rubber sleeve 10 abuts against the outer wall of the guide rod 9;

[0040] It should be noted that the energy transfer caused by vibration, impact or other forms of movement is reduced, thereby improving the energy absorption effect and avoiding the situation where the pipeline 1 jumps left and right due to the rebound force of the spring 8.

[0041] like Figure 1 , Figure 2 , Figure 3 As shown, both the first flange joint 6 and the second flange joint 12 have assembly holes on their surfaces, and the assembly holes correspond one to one;

[0042] It should be noted that the connection between the pipeline 1 and the connecting pipe 11 is convenient.

[0043] When in use: by connecting the two second flange joints 12 to the pipelines respectively, when the liquid flow generates a lateral impact, that is, the "water hammer phenomenon", the connecting pipe 3 will move in the axial position of the connecting pipe 11, and at the same time make the boss 5 cooperate with the connecting rod 7 to slide, and the springs 8 sleeved on both ends of the connecting rod 7 cooperate to expand and contract to absorb the lateral impact force. At the same time, the damping force between the damping rubber sleeve 10 installed at the boss 5 and the guide rod 9 reduces the energy transfer caused by vibration, impact or other forms of movement, thereby improving the energy absorption effect, avoiding the rebound force of the spring 8 causing the pipeline 1 to jump left and right, and filling the gap at the junction of the connecting pipe 3 and the connecting pipe 11 through the sealing rubber ring 4 to prevent liquid leakage. The flow meter 2 at the top of the pipeline 1 can normally record and measure the liquid flow.

[0044] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A seismic device for a vortex flowmeter, comprising a pipeline (1) and a flowmeter (2) installed on the top of the pipeline (1), characterized in that: Both ends of the pipeline (1) are connected to connecting pipes (3); The outer walls of both ends of the pipeline (1) are fixedly connected with bosses (5), a first flange joint (6) is provided on a side of the boss (5) close to the connecting pipe (3), and a connecting rod (7) penetrating the boss (5) is fixedly connected between the first flange joints (6), and both ends of the connecting rod (7) are sleeved with springs (8), one end of the spring (8) is connected to the first flange joint (6), and the other end of the spring (8) is connected to the boss (5); A guide rod (9) penetrating the boss (5) is fixedly connected between the bottoms of the two first flange joints (6), and a damping rubber sleeve (10) is installed at the junction of the guide rod (9) and the boss (5); A connecting pipe (11) is provided at one end of the connecting pipe (3) away from the pipeline (1); a sealing rubber ring (4) is embedded in the outer wall of one end of the connecting pipe (3) close to the connecting pipe (11), and the sealing rubber ring (4) is in contact with the inner wall of the connecting pipe (11); and the outer walls at both ends of the connecting pipe (11) are fixedly connected with second flange joints (12).

2. The anti-seismic device of a vortex flowmeter according to claim 1, characterized in that: A connection seat (13) is fixedly connected to the edge of the outer wall of the flow meter (2), and the connection seat (13) is connected to a protective cover (14) via a damping hinge.

3. The anti-seismic device of a vortex flowmeter according to claim 2, characterized in that: A scraper strip (15) is provided on the surface of the protective cover (14) close to the flow meter (2), and the scraper strip (15) abuts against the dial of the flow meter (2).

4. The anti-seismic device of a vortex flowmeter according to claim 3, characterized in that: A rotating rod (16) is rotatably connected to a surface of the protective cover (14) away from the scraper strip (15), and a through end of the rotating rod (16) is connected to the scraper strip (15). A handle (17) is installed at one end of the rotating rod (16) away from the scraper strip (15).

5. The anti-seismic device of a vortex flowmeter according to claim 1, characterized in that: A through hole is provided at the joint portion between the boss (5) and the connecting rod (7), and the inner diameter of the through hole is matched to the outer diameter of the connecting rod (7).

6. The anti-seismic device of a vortex flowmeter according to claim 1, characterized in that: The inner wall of the damping rubber sleeve (10) abuts against the outer wall of the guide rod (9).

7. The anti-seismic device of a vortex flowmeter according to claim 1, characterized in that: The surfaces of the first flange joint (6) and the second flange joint (12) are both provided with assembly holes, and the assembly holes correspond to each other one by one.

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