A sound-absorbing PPR pipe
By introducing PVC outer tube, closed-cell foam-filled sponge layer and spiral flow guide ribs into the PPR pipe, the noise problem of traditional PPR pipes is solved, achieving lower noise levels and stronger pipe stiffness performance.
Patent Information
- Application Number
- CN202421219720.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Traditional PPR pipes will generate resonant noise and water flow noise when transporting liquids, affecting the indoor use environment.
The silenced PPR pipe design is adopted, including PVC outer tube, closed-cell foam-filled sponge layer and PPR core tube. The PVC outer tube is set outside the PPR core tube, and the closed-cell foam-filled sponge layer is embedded between the PVC outer tube and the PPR core tube, and a tapered design is provided in the cross-section of the spiral flow guide rib of the PPR core tube to enhance the flow guide performance.
Through the combination of spiral flow guide ribs and closed-cell foam-filled sponge layer, the resonance noise and water flow noise of the pipe are effectively reduced, the stiffness performance of the pipe is enhanced, the liquid flow is improved, and the pipe vibration is reduced.
Smart Images
Figure CN222702852U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PPR pipes, in particular to a sound-absorbing PPR pipe. Background Art
[0002] Traditional PPR pipes will produce certain resonance noise and water flow noise when transporting liquids, which will affect the user's rest when installed indoors. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the above problems, a sound-absorbing PPR pipe is provided, which solves the above problems.
[0004] The utility model solves the technical problem by adopting the following technical solutions:
[0005] A sound-absorbing PPR pipe comprises a PVC outer pipe, a closed-cell foaming filling sponge layer and a PPR core pipe. The PVC outer pipe is sleeved on the outside of the PPR core pipe, and the closed-cell foaming filling sponge layer is foamed and filled between the PVC outer pipe and the PPR core pipe.
[0006] Preferably, spiral PPR core pipe spiral guide ribs are provided at annular intervals on the inner wall of the PVC outer pipe. The cross-section of the PPR core pipe spiral guide ribs is conical and is used to guide the liquid when transporting the liquid, reduce turbulence, reduce the vibration of the pipeline, enhance the straightness of the pipeline, and effectively reduce the noise of the pipeline.
[0007] Preferably, the pitch of the spiral guide ribs of the PPR core tube is not less than five times the inner diameter of the PPR core tube.
[0008] Preferably, the thickness of the closed-cell foamed filling sponge layer is not greater than the thickness of the PPR core tube.
[0009] Preferably, the thickness of the closed-cell foam filling sponge layer is not less than the thickness of the PVC outer tube.
[0010] Preferably, a layer of light-shielding film is sprayed on the inner wall of the PVC outer tube.
[0011] The advantages and positive effects of the utility model are as follows: the spiral guide ribs of the PPR core pipe effectively enhance the pipe structure of the PPR core pipe, reduce the noise caused by resonance, and effectively guide the liquid in the pipe to reduce the noise caused by turbulence. In addition, the PVC outer pipe is used as an external support clip and a soft sound-absorbing closed-cell foam filling sponge layer is embedded between it and the PPR core pipe, which effectively reduces noise. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0014] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0015] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:
[0016] like Figure 1 As shown, the sound-absorbing PPR pipe described in the utility model includes a PVC outer tube 10, a closed-cell foamed filling sponge layer 11, and a PPR core tube 12. The PVC outer tube 10 is sleeved on the outside of the PPR core tube 12, and the closed-cell foamed filling sponge layer 11 is foamed and filled between the PVC outer tube 10 and the PPR core tube 12.
[0017] Preferably, spiral PPR core pipe spiral guide ribs 13 are provided at annular intervals on the inner wall of the PVC outer pipe 10. The cross-section of the PPR core pipe spiral guide ribs 13 is conical and is used to guide the liquid when transporting the liquid, reduce turbulence, reduce pipeline vibration, enhance the straightness of the pipeline, and effectively reduce pipeline noise.
[0018] Preferably, the pitch of the spiral guide ribs 13 of the PPR core tube is not less than five times the inner diameter of the PPR core tube 12 .
[0019] Preferably, the thickness of the closed-cell foam filling sponge layer 11 is not greater than the thickness of the PPR core tube 12 .
[0020] Preferably, the thickness of the closed-cell foam filling sponge layer 11 is not less than the thickness of the PVC outer tube 10 .
[0021] Preferably, a layer of light-shielding film is sprayed on the inner wall of the PVC outer tube 10 .
[0022] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.
Claims
1. A sound-absorbing PPR pipe, characterized in that: The invention comprises a PVC outer tube (10), a closed-cell foam filling sponge layer (11), and a PPR core tube (12); the PVC outer tube (10) is sleeved on the outside of the PPR core tube (12); the closed-cell foam filling sponge layer (11) is foamed and filled between the PVC outer tube (10) and the PPR core tube (12); spiral PPR core tube spiral guide ribs (13) are arranged at annular intervals on the inner wall of the PVC outer tube (10); the cross section of the PPR core tube spiral guide ribs (13) is conical and is used for conveying liquid. The invention can guide the flow when the pipe is in the pipe body, reduce turbulence, reduce the vibration of the pipe, enhance the straightness of the pipe, and effectively reduce the noise of the pipe; the pitch of the spiral guide rib (13) of the PPR core pipe is not less than five times the inner diameter of the PPR core pipe (12); the thickness of the closed-cell foam filling sponge layer (11) is not greater than the thickness of the PPR core pipe (12); the thickness of the closed-cell foam filling sponge layer (11) is not less than the thickness of the PVC outer pipe (10); and a layer of light-shielding film is sprayed on the inner wall of the PVC outer pipe (10).