Silent drainage pipeline

Abstract

The utility model discloses a mute drainage pipeline, which belongs to the technical field of drainage pipeline engineering, and comprises a pipeline body, the pipeline body comprises an inner pipe layer, a silencer and an outer pipe wall, the inner pipe layer consists of an inner pipe wall and a flow guide body arranged on the inner pipe wall, and the flow guide body is a long strip block and is spirally arranged along the inner pipe wall; the silencing layer is composed of a plurality of sets of hollow composite noise reduction units, and each hollow composite noise reduction unit is composed of a through pipe I with the cross section being in an inverted triangle shape and through pipes II arranged on the two sides of the lower portion of the through pipe I and with the cross section being in a wedge shape. Impact of water flow on the pipe wall is reduced through the internal thread structure of the inner pipe layer, so that generated structural vibration and flow-induced noise are reduced, the transmission distance of sound is increased by reflecting water flow sound through multiple paths through the hollow composite noise reduction units, the sound attenuation and noise reduction effects are achieved, meanwhile, a certain supporting effect is achieved on the pipe body, and the service life of the pipe body is prolonged. The water drainage pipe meets the comfort requirement of the existing family life, and is suitable for being popularized in the technical field of water drainage pipelines.

Description

Technical Field

[0001] This utility model belongs to the field of drainage technology, specifically relating to a silent drainage pipe. Background Technology

[0002] Indoor drainage noise suppression has always been a challenge in the field of drainage technology. With the improvement of people's living standards, higher demands are placed on residential comfort, including the suppression of noise from indoor drainage pipes. Household drainage generates noise from both water flow and pipe structure, severely impacting people's comfort. In existing technologies, such as CN203671046U, a sound-absorbing PVC drainage pipe structure is disclosed. This structure features uniformly distributed guide ridges on the inner wall to divide and guide water flow. The inner wall of the PVC drainage pipe body between these guide ridges has dense protrusions and depressions. These ridges, protrusions, and depressions absorb water energy, reducing the speed at which water impacts the drainage pipe and thus lowering drainage noise. However, when the flow rate is high, this leads to increased vibration amplitude in the pipe structure, significantly reducing its noise reduction capability. Utility Model Content

[0003] To address the shortcomings or defects of existing technologies, this utility model provides a silent drainage pipe, thereby reducing the noise generated during drainage. It meets the comfort requirements of modern indoor living and is suitable for widespread application in the field of drainage technology.

[0004] This utility model of a silent drainage pipe includes a pipe body, which includes an inner pipe layer, a sound-absorbing layer, and an outer pipe wall. The sound-absorbing layer is disposed between the inner pipe layer and the outer pipe wall. The inner pipe layer consists of an inner pipe wall and a guide fluid disposed on the inner pipe wall. The guide fluid is a long strip that is spirally arranged circumferentially along the inner pipe wall and extends from one end of the inner pipe wall to the other end. The sound-absorbing layer consists of several sets of hollow composite noise reduction units. Each hollow composite noise reduction unit consists of a through pipe I with an inverted triangular cross-section and through pipes II with a wedge-shaped cross-section disposed on both sides below through pipe I.

[0005] The cross-section of the guide fluid is triangular, circular, or trapezoidal. The spiral circumferential arrangement of the guide fluid creates an internal thread structure on the inner wall of the pipe body, guiding the water flow in a vortex state and reducing the impact of the water flow on the pipe wall.

[0006] The number of guide tubes is generally set to 6-12.

[0007] The hollow composite noise reduction unit has an inverted triangular cross-section for the through-pipe I, which provides support to the pipe body, improves its strength, and increases the sound propagation distance by stacking through-pipe I and through-pipe II, thereby reducing the flow-induced noise generated by the water flow.

[0008] Advantages of this invention:

[0009] 1. The internal thread structure of the inner pipe layer reduces the impact of water flow on the pipe wall, thereby reducing structural vibration and flow-induced noise, and plays the first-level soundproofing and noise reduction role of this pipeline.

[0010] 2. The hollow composite noise reduction unit of the sound-absorbing layer increases the sound propagation distance by reflecting the water flow sound through multiple paths, achieving the second layer of noise reduction effect while also providing some support to the pipe body to ensure the stability of the pipe body.

[0011] This utility model of a silent drainage pipe is a one-piece molded structure made of UPVC material, which meets the requirements of lightweight and simplification in the modern drainage technology field. It ensures the strength of the pipe body while increasing its service life, making it suitable for promotion in the field of drainage technology. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a silent drainage pipe structure.

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of a silent drainage pipe;

[0014] Figure 3 This is a magnified schematic diagram of the sound-absorbing layer structure;

[0015] In the diagram: 1-Inner pipe wall; 2-Flow guide; 3-Sound absorption layer; 4-Pass pipe I; 5-Pass pipe II; 6-Outer pipe wall. Detailed Implementation

[0016] To meet the living environment and installation requirements of residential buildings, this utility model is made entirely of UPVC material, with the inner pipe layer, sound-absorbing layer, and outer pipe wall all being integrally molded structures. The sound-absorbing layer has a hollow structure, making the pipe lighter than commonly seen silent pipes on the market. The installation process is simple and convenient, ensuring smooth drainage while reducing noise, reducing the workload of workers, and improving work efficiency.

[0017] Example 1: As Figure 1-3 As shown, the silent drainage pipe in this embodiment includes a pipe body, which includes an inner pipe layer, a sound-absorbing layer 3, and an outer pipe wall 6. The sound-absorbing layer 3 is disposed between the inner pipe layer and the outer pipe wall. The inner pipe layer consists of an inner pipe wall 1 and a guide fluid 2 disposed on the inner pipe wall. The guide fluid 2 is a long strip with an isosceles triangular cross-section. Nine guide fluids are spirally arranged along the inner pipe wall and extend from one end of the inner pipe wall to the other end. The sound-absorbing layer 3 is composed of 13 sets of hollow composite noise reduction units arranged in parallel. The hollow composite noise reduction unit consists of a through pipe I 4 with an inverted triangular cross-section and through pipes II 5 with a wedge-shaped cross-section disposed on both sides below the through pipe I.

[0018] In this embodiment, the spiral arrangement of the nine guide tubes causes the water flow in the drain pipe to flow in a vortex state, forming a blocking force on the water flow at multiple locations in the pipe, reducing the impact of the water flow on the pipe wall, thereby reducing the vibration of the pipe structure.

[0019] In this embodiment, the triangular structure of the connecting pipe II 5 supports the pipe body based on the mechanical properties of a triangle, increasing the strength of the pipe body and extending its service life. Connecting pipes I and II 5 are arranged circumferentially and evenly distributed, extending from one end of the pipe body to the other, and are hollow structures. Based on the principle of sound propagation, noise generated by the water flow is reduced through multi-path reflection, achieving the purpose of noise reduction.

[0020] In this embodiment, the inner pipe layer 1, the sound-absorbing layer 3, and the outer pipe layer 6 are integrally molded structures, all made of UPVC material, which is easy to process and makes the water pipe lighter, meeting the needs of the modern market.

[0021] Example 2: The structure of this example is the same as that of Example 1, except that the cross-section of the fluid guide is circular and the number is 10.

[0022] The above is a detailed description of this embodiment in conjunction with the accompanying drawings and specific embodiments. The above description is only a preferred embodiment of this embodiment and is not limited to this embodiment. Any modifications, equivalent substitutions and improvements made within the principles and structure of this embodiment should be included within the protection scope of this embodiment.

Claims

1. A silent drainage pipe, characterized in that: The pipe body includes an inner pipe layer, a sound-absorbing layer (3), and an outer pipe wall (6). The sound-absorbing layer (3) is located between the inner pipe layer and the outer pipe wall. The inner pipe layer consists of an inner pipe wall (1) and a guide fluid (2) located on the inner pipe wall. The guide fluid (2) is a long strip that is spirally arranged along the inner pipe wall and extends from one end of the inner pipe wall to the other end. The sound-absorbing layer (3) consists of several hollow composite noise reduction units. The hollow composite noise reduction unit consists of a through pipe I (4) with an inverted triangular cross section and through pipe II (5) with a wedge-shaped cross section located on both sides below through pipe I.

2. The silent drainage pipe according to claim 1, characterized in that: The cross-section of the fluid conductor is triangular, circular, or trapezoidal.

3. The silent drainage pipe according to claim 2, characterized in that: The number of guide tubes is 6-12.

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