Pressure-reducing, discharging and noise-eliminating pipeline

Abstract

The utility model discloses a depressurization discharge silencing pipeline which comprises a pipe body, the pipe body is arranged to be a trumpet-shaped pipeline, and the trumpet-shaped pipeline is arranged to be gradually shrunk and then gradually expanded from one end of the pipe body to the other end of the pipe body. Through the design of the trumpet-shaped pipeline, fluid is gradually accelerated and then decelerated in the pipeline, sudden change of the flow speed is avoided, noise is effectively reduced, the noise elimination effect is improved, and high-pressure fluid is discharged at low noise.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluid pipeline equipment field especially is related to a pressure reduction discharge silencer pipeline. BACKGROUND

[0002] In the fluid pipeline system, the valve throttling method is usually used to discharge high pressure fluid, but this discharge method has some problems. When the high pressure fluid passes through the valve throttling, the impact of high speed fluid and low speed fluid will produce great noise, which not only affects the surrounding environment, but also may cause damage to human health. In addition, the greater the pressure difference before and after the valve, the greater the noise produced, which may also cause pipeline system vibration, affecting the normal operation of the equipment.

[0003] The existing pipeline silencer usually uses porous plate or damping sheet structure for silencing, which can easily cause fluid resistance to increase, and the internal components are easy to be damaged in the long-term use. Another common silencing method is to use a multi-layer composite structure, which can achieve a certain silencing effect, but the structure is complex, the manufacturing cost is high, and the maintenance is not convenient. SUMMARY

[0004] The utility model discloses a pressure reduction discharge silencer pipeline to solve the technical problem of the noise produced when the valve throttling pressure reduction in the prior art.

[0005] To solve the above technical problems, the utility model provides a pressure reduction discharge silencer pipeline, which comprises a pipe body, the pipe body is arranged as a horn-shaped pipeline, and the horn-shaped pipeline is arranged to gradually contract and then gradually expand from one end of the pipe body to the other end.

[0006] Further, the two ends of the horn-shaped pipeline are symmetric about the center of the pipe body.

[0007] Further, the narrowest part of the horn-shaped pipeline is located at the middle position of the pipe body.

[0008] Further, the length of the contraction section and the expansion section of the horn-shaped pipeline is equal.

[0009] Further, the included angle between the inner wall of the horn-shaped pipeline and the axial center line of the pipe body gradually changes along the axial direction.

[0010] Further, the inner wall of the horn-shaped pipeline is a smooth transition surface.

[0011] Further, the cross section of the pipe body is a circular ring.

[0012] Further, the wall thickness of the pipe body is uniformly arranged along the axial direction.

[0013] Compared with the prior art, the utility model has at least the following beneficial effects:

[0014] This invention uses a funnel-shaped pipe to allow the fluid to gradually contract and then expand from one end to the other, achieving a smooth reduction in fluid pressure. This effectively avoids the strong noise caused by sudden fluid changes during throttling in traditional valves, while ensuring a good pressure reduction effect.

[0015] Furthermore, the symmetrical design and smooth transition surface of the inner wall of the horn-shaped pipe make the fluid flow more stable. The gradually changing angle between the inner wall and the axial centerline further reduces fluid turbulence. The annular cross-sectional structure and uniform wall thickness design improve the strength and stability of the pipe. The overall structure is simple and easy to process, manufacture and maintain. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a pressure-reducing and noise-reducing duct in one embodiment of the present invention;

[0017] Figure 2 for Figure 1 Sectional view of AA;

[0018] Figure 3 This is a schematic diagram of the end face of the pressure-reducing and noise-reducing pipe in one embodiment of the present invention.

[0019] Reference numerals: 1. Trumpet-shaped pipe; 2. Standard flange; 3. Connection hole. Detailed Implementation

[0020] The following is a more detailed description of a pressure-reducing and noise-reducing duct according to the present invention, with reference to the schematic diagrams, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0021] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0022] like Figures 1 to 3 As shown in the figure, this utility model embodiment proposes a pressure-reducing and noise-reducing pipe, including a pipe body, the pipe body being configured as a horn-shaped pipe 1, the horn-shaped pipe 1 being configured to gradually contract from one end of the pipe body to the other end and then gradually expand.

[0023] In the present embodiment, the two ends of the trumpet-shaped pipe 1 are arranged symmetrically about the center of the pipe body, which helps to maintain the balance of fluid flow in the pipe 1.

[0024] Specifically, the narrowest part of the trumpet-shaped pipe 1 is located at the middle position of the pipe body, so that the fluid can experience a process of gradually accelerating, then reaching the maximum flow rate at the narrowest part, and then gradually decelerating again when passing through the pipe 1. This change in flow rate helps to reduce turbulence and vortex in fluid flow, thereby reducing noise.

[0025] In a preferred embodiment, the lengths of the converging section and the diverging section of the trumpet-shaped pipe 1 are equal, which helps to maintain the stability and pressure balance of fluid flow, thereby optimizing the noise reduction effect and reducing noise. In addition, it also helps to avoid resonance at a certain frequency, enhancing the reliability and durability of the pipe 1.

[0026] In a specific embodiment, the angle between the inner wall of the trumpet-shaped pipe 1 and the axial center line of the pipe body gradually changes in the axial direction, which helps to smooth the transition of the fluid during discharge, improve the noise reduction effect, and reduce the impact of the fluid on the inner wall of the pipe, prolonging the service life of the pipe 1.

[0027] Further, the inner wall of the trumpet-shaped pipe 1 is a smooth transition surface, which avoids turbulence caused by local mutations and helps to prevent the deposition of particulate matter in the fluid on the inner wall of the pipe, reducing the risk of blockage and corrosion.

[0028] In a specific embodiment, the cross-section of the pipe body is circular, which helps to improve the mechanical properties and structural stability of the pipe 1, so that the pipe 1 can maintain stability under various working conditions.

[0029] In a preferred embodiment, the wall thickness of the pipe body is uniformly arranged along the axial direction, which helps to achieve uniform pressure distribution in the pipe body, reduce stress concentration, and enhance the pressure resistance of the pipe 1. In addition, the pipe 1 with uniform wall thickness helps to simplify the manufacturing process, reduce production costs, and improve the durability and reliability of the pipe 1, ensuring the safety of long-term operation.

[0030] In a specific embodiment, the trumpet-shaped pipe 1 is connected to other components through the standard flanges 2 arranged at both ends. The standard flanges 2 are provided with a plurality of connection holes 3 uniformly distributed along the circumference, which facilitates the connection and fixation with adjacent pipes, not only simplifying the installation process of the pipe 1, but also facilitating the disassembly and reinstallation during maintenance.

[0031] When the high-pressure fluid is discharged, it enters from one end of the pipe body, passes through the horn-shaped pipe 1, and flows out from the other end of the pipe body. When the high-pressure fluid passes through the horn-shaped pipe 1, the flow rate gradually increases and the pressure gradually decreases in the converging section, then the flow rate gradually slows down and the pressure gradually rises in the diverging section, and finally the fluid is discharged. During the whole process, the smooth change of the flow rate avoids sudden pressure reduction, reduces the turbulent flow and vortex flow of the high-pressure fluid in the flow, and effectively eliminates noise. At the same time, this design realizes the pressure reduction and discharge of the fluid, and ensures the stability and safety of the discharge process.

[0032] In summary, the utility model discloses a horn-shaped pipe is arranged in the pipe body, adopts the gradually changed pressure reduction mode, avoids the strong noise generated by the fluid mutation when the traditional valve throttles. At the same time, since the horn-shaped pipe adopts the symmetrical design and the inner wall is the smooth transition surface, the fluid flow is more stable, and the fluid noise is effectively reduced. In addition, the included angle between the inner wall of the horn-shaped pipe and the axial center line gradually changes along the axial direction, which further reduces the fluid turbulence and realizes low-noise discharge.

[0033] Obviously, those skilled in the art can make various modifications and variations to the utility model without departing from the spirit and scope of the utility model. Thus, if these modifications and variations of the utility model belong to the scope of the claims of the utility model and its equivalent technologies, the utility model also intends to include these modifications and variations.

Claims

1. A pressure reducing vent silencer duct, characterized by, The pipe body comprises a pipe body; The pipe body is provided with a horn-shaped pipe which is gradually contracted and then gradually expanded from one end to the other end of the pipe body.

2. The pipe of claim 1, wherein, The two ends of the horn-shaped pipe are symmetric about the center of the pipe body.

3. The pipe of claim 1, wherein, The narrowest part of the horn-shaped pipe is located at the middle of the pipe body.

4. The pipe of claim 1, wherein, The length of the contraction section and the expansion section of the horn-shaped pipe are equal.

5. The pipe of claim 1, wherein, The included angle between the inner wall of the horn-shaped pipe and the axial center line of the pipe body gradually changes along the axial direction.

6. The pipe of claim 1, wherein, The inner wall of the horn-shaped pipe is a smooth transition surface.

7. The pipe of claim 1, wherein, The cross section of the pipe body is a circular ring.

8. The pipe of claim 1, wherein, The wall thickness of the pipe body is uniformly arranged along the axial direction.

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