Damping mechanism for pulse fluid conveying pipeline

Abstract

The utility model discloses a shock-absorbing mechanism for a pulse fluid conveying pipeline. The shock-absorbing mechanism comprises a shock-absorbing connecting pipe body, a connecting and fixing flange, a first shock-absorbing ring, a second shock-absorbing ring, a plurality of first shock-absorbing plates, a first shock-absorbing flow channel opening, a plurality of second shock-absorbing plates and a second shock-absorbing flow channel opening. By means of the mode, the shock absorption mechanism of the pulse fluid conveying pipeline can convert pulse fluid into fluid with the uniform flow speed, vibration of the pipeline is reduced, the service life of a pipe body is prolonged, constant-speed flowing of the fluid and accurate metering of a flow meter are facilitated, and the shock absorption mechanism is simple in structure, convenient to disassemble and assemble and high in universality.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial fluid conveying pipeline technical field, especially a kind of pulse fluid conveying pipeline damping mechanism. BACKGROUND

[0002] In industrial production, fluid is transmitted through pipeline, and since the equipment for increasing the flow power of fluid is supplied regularly and intermittently, it will cause the fluid to form pulsation in the pipeline (such as compressed air generated by piston air compressor), and the pulsation fluid drives the pipeline to vibrate (oscillate).

[0003] Although the measures such as adding damping pad at the bottom of the equipment or pipeline, adding rubber joint at the connection of pipeline can be taken to reduce vibration at present, it only reduces the oscillation of equipment and pipeline, and cannot fundamentally solve the problem of fluid pulsation. At the same time, since the pulsation fluid has a great influence on the measurement accuracy of flow meter, especially the commonly used vortex flow meter, when the vortex flow meter measures, due to airflow pulsation, the pipeline and gas tank vibrate, and the generated vibration signal increases the count of flow meter. Even after 30 seconds of no-load operation of piston air compressor, due to the continuous vibration of pipeline, the vortex flow meter is still counting, so that the vortex flow meter cannot be accurately measured, and therefore a more required pipeline damping mechanism is needed. SUMMARY

[0004] To solve the above technical problems, one technical scheme adopted by the utility model is:

[0005] Provided is a pulse fluid conveying pipeline damping mechanism, which comprises a damping connection pipe body, a connection fixed flange, a first damping ring, a second damping ring, a plurality of first damping plates, a first damping flow passage opening, a plurality of second damping plates, and a second damping flow passage opening.

[0006] The outer peripheral wall of the water inlet and water outlet of the damping connection pipe body is provided with one connection fixed flange, the first damping ring is arranged in the damping connection pipe body close to the water inlet, the second damping ring is arranged on the inner wall of the pipe body close to the water outlet of the damping connection pipe body, the first damping plate and the second damping plate are arranged in the damping connection pipe body between the first damping ring and the second damping ring, and a gap is arranged between adjacent damping plates, a plurality of first damping flow passage openings are arranged on the first damping plate around the central axis, the second damping flow passage opening is arranged at the center of the second damping plate, the diameter of the first damping flow passage opening is smaller than that of the second damping flow passage opening, and the center of the first damping flow passage opening and the center of the second damping flow passage opening are not on the same horizontal line, so as to form a zigzag damping guide flow passage, so that the pulsation fluid collides and is guided to become uniform fluid under the action of damping ring and damping plate.

[0007] In a preferred embodiment of the present application, the outer diameter of the shock-absorbing connecting pipe body is greater than the outer diameter of the conveying pipeline.

[0008] In a preferred embodiment of the present application, a sealing ring is arranged on the outer end face of the connecting fixing flange.

[0009] In a preferred embodiment of the present application, the distance between the first shock-absorbing ring and the water inlet is less than the distance between the second shock-absorbing ring and the water outlet.

[0010] In a preferred embodiment of the present application, the first shock-absorbing ring and the second shock-absorbing ring are both hollow ring structures.

[0011] In a preferred embodiment of the present application, sealing structures are arranged at the connecting positions between the inner wall of the shock-absorbing connecting pipe body and the shock-absorbing ring and the shock-absorbing plate.

[0012] The present application has the advantages that it can convert pulsating fluid into fluid with uniform flow rate, reduces the vibration of the pipeline, prolongs the service life of the pipeline, facilitates the uniform flow of fluid and the accurate measurement of the flow meter, and has simple structure, convenient disassembly and assembly, and strong versatility. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0014] Fig. 1 is a cross-sectional structure schematic view of a preferred embodiment of the pulse fluid conveying pipeline shock-absorbing mechanism of the present application;

[0015] Fig. 2 is an end face structure schematic view of a preferred embodiment of the pulse fluid conveying pipeline shock-absorbing mechanism of the present application. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0017] Please refer to Figs. 1-2 , the embodiments of the present application include:

[0018] The application discloses a shock-absorbing mechanism for a pulse fluid conveying pipeline.

[0019] The outer peripheral wall of the shock-absorbing connecting pipe body is provided with a connecting fixing flange at each end, so that the shock-absorbing connecting pipe body can be connected with the conveying pipeline through the connecting fixing flanges or connected and assembled with adjacent two shock-absorbing connecting pipe bodies through the connecting fixing flanges.

[0020] Further preferably, the outer diameter of the shock-absorbing connecting pipe body is slightly larger than the outer diameter of the conveying pipeline, and the length is about 1 meter, which can be adjusted according to actual practical requirements.

[0021] Further preferably, the outer end surface of the connecting fixing flange and / or the connecting position of the shock-absorbing connecting pipe body and the connecting fixing flange is provided with a sealing ring, so as to improve the sealing performance of the shock-absorbing mechanism and other pipelines.

[0022] The first shock-absorbing ring and the second shock-absorbing ring are both hollow ring structures, the first shock-absorbing ring is connected to the inner wall of the pipe body near the water inlet of the shock-absorbing connecting pipe body, the second shock-absorbing ring is connected to the inner wall of the pipe body near the water outlet of the shock-absorbing connecting pipe body, the first shock-absorbing plate and the second shock-absorbing plate are arranged on the inner wall of the shock-absorbing connecting pipe body between the first shock-absorbing ring and the second shock-absorbing ring, and a gap is arranged between adjacent shock-absorbing plates, a plurality of first shock-absorbing flow channel openings are uniformly distributed on the first shock-absorbing plate around the central axis, and a second shock-absorbing flow channel opening is arranged at the central position of the second shock-absorbing plate, so that the central axes of the first shock-absorbing flow channel openings and the second shock-absorbing flow channel opening are not on the same horizontal line, so as to form a zigzag shock-absorbing guide flow channel, and the mutual collision and guidance of the pulsating fluid under the action of the shock-absorbing ring and the shock-absorbing plate can change the pulsating fluid into uniform fluid, so that the problems of gas pulsation and pipeline vibration are solved, and the accurate measurement of metering equipment such as a vortex flowmeter is facilitated.

[0023] The size, number and arrangement position of the shock-absorbing ring and the shock-absorbing plate can be determined according to the fluid flow and the size of the shock-absorber cylinder and other actual use requirements.

[0024] Further preferably, the distance between the first shock-absorbing ring and the adjacent connecting fixing flange is smaller than the distance between the second shock-absorbing ring and the adjacent connecting fixing flange.

[0025] Further preferably, the first shock-absorbing ring and the second shock-absorbing ring are of the same structure.

[0026] Further preferably, sealing structures such as sealing rings are arranged at the connecting positions of the shock-absorbing ring and the inner wall of the shock-absorbing connecting pipe body and the shock-absorbing plate and the inner wall of the shock-absorbing connecting pipe body.

[0027] Further preferably, the diameter of the first shock-absorbing flow channel opening is smaller than the diameter of the second shock-absorbing flow channel opening.

[0028] The utility model discloses a kind of shock-absorbing mechanisms of pulse fluid conveying pipeline, its beneficial effect is: can convert pulsating fluid into the fluid of uniform flow rate, not only reduce the tremble of pipeline, improve the service life of pipe body, and it is convenient for the uniform flow of fluid and the accurate measurement of flowmeter, simple structure, easy to disassemble and assemble, strong universality.

[0029] The above-mentioned is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A vibration damping mechanism for a pulsed fluid transport pipeline, characterized in that, include: The components include a vibration-damping connecting pipe body, a connecting and fixing flange, a first vibration-damping ring, a second vibration-damping ring, several first vibration-damping plates, a first vibration-damping flow channel, several second vibration-damping plates, and a second vibration-damping flow channel. A connecting flange is provided on the outer peripheral wall of the inlet and outlet of the shock-absorbing connecting pipe. The first shock-absorbing ring is provided in the shock-absorbing connecting pipe body near the inlet, and the second shock-absorbing ring is provided on the inner wall of the pipe body near the outlet. The first shock-absorbing plate and the second shock-absorbing plate are spaced apart in the shock-absorbing connecting pipe body between the first shock-absorbing ring and the second shock-absorbing ring, and there is a gap between adjacent shock-absorbing plates. The first shock-absorbing plate has a plurality of first shock-absorbing flow channels arranged around its central axis, and the second shock-absorbing plate has a second shock-absorbing flow channel arranged at its center. The diameter of the first shock-absorbing flow channel is smaller than the diameter of the second shock-absorbing flow channel, and the center of the first shock-absorbing flow channel and the center of the second shock-absorbing flow channel are not on the same horizontal line to form a tortuous shock-absorbing guide flow channel, so that the pulsating fluid collides and is guided to become a uniform fluid under the action of the shock-absorbing ring and the shock-absorbing plate.

2. The vibration damping mechanism for a pulsed fluid conveying pipeline according to claim 1, characterized in that, The outer diameter of the shock-absorbing connecting pipe is larger than the outer diameter of the conveying pipe.

3. The vibration damping mechanism for a pulsed fluid conveying pipeline according to claim 1, characterized in that, A sealing ring is provided on the outer end face of the connecting and fixing flange.

4. The vibration damping mechanism for a pulsed fluid conveying pipeline according to claim 1, characterized in that, The distance between the first damping ring and the water inlet is smaller than the distance between the second damping ring and the water outlet.

5. The vibration damping mechanism for a pulsed fluid conveying pipeline according to claim 1, characterized in that, Both the first damping ring and the second damping ring are hollow circular ring structures.

6. The vibration damping mechanism for a pulsed fluid conveying pipeline according to claim 1, characterized in that, The inner wall of the shock-absorbing connecting pipe is provided with a sealing structure at the connection between the shock-absorbing ring and the shock-absorbing plate.

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