Industrial pipeline noise reduction and sound elimination structure

Abstract

The utility model provides a kind of industrial pipeline noise reduction sound attenuation structure, it is related to industrial pipeline noise reduction technical field, including pipeline body, sound-absorbing cotton is installed in pipeline body outer wall, the sound-absorbing cotton is sheeted and sound-absorbing cotton two sides are set around pipeline body outer wall one week, the sound-absorbing cotton butt joint edge is glued connection and sound-absorbing cotton outside is provided with waterproof cloth, the waterproof cloth is also sheeted and waterproof cloth outside position butt joint is provided with sealing strip, the innermost layer heat insulation film can block the high temperature of medium in pipeline, avoid external sound absorption, waterproof structure and so on due to high temperature ageing;It can also reduce the direct contact of medium and external structure to a certain extent, reduce chemical corrosion risk, middle sound-absorbing cotton and outside waterproof cloth, cover form multilayer barrier, can reduce high flow rate medium or solid particle medium to the physical scouring of structure, protect internal structure from direct impact.

Description

Technical Field

[0001] This utility model relates to the field of industrial pipeline noise reduction technology, and in particular to an industrial pipeline noise reduction and sound absorption structure. Background Technology

[0002] Noise problems are common in industrial production systems. Without noise reduction measures, they can have multi-dimensional negative impacts on production safety, personnel health, equipment operation, and the surrounding environment. Therefore, a novel industrial pipeline sound insulation and noise reduction structure (publication number CN213809459U) has been developed. This structure incorporates an anti-vibration layer inside the pipeline body, effectively buffering and reducing the vibration of the flowing fluid. Sound-absorbing holes in the anti-vibration layer provide excellent sound absorption, achieving a significant noise reduction effect. External sound-absorbing and noise-reducing components are installed on the outside of the pipeline body to absorb vibrations generated during operation. The combined effect of rubber shock-absorbing washers and sound-absorbing cotton further enhances the noise reduction of the pipeline.

[0003] If the pipeline transports non-corrosive, normal-temperature, low-flow-rate conventional media (such as tap water, compressed air, steam, and ordinary industrial water), the seismic-resistant layer can work stably for a long time and is not easily damaged. However, if the pipeline transports highly corrosive, high-temperature, high-pressure, high-flow-rate media or media containing solid particles, the seismic-resistant layer may be damaged due to "chemical corrosion," "high-temperature aging," or "physical erosion." Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an industrial pipeline noise reduction and sound absorption structure.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an industrial pipeline noise reduction and sound absorption structure, comprising a pipeline body, sound-absorbing cotton installed on the outer wall of the pipeline body, the sound-absorbing cotton being sheet-like and surrounding the outer wall of the pipeline body on both sides, the sound-absorbing cotton being glued together at the butt joints, and a waterproof cloth being provided on the outer side of the sound-absorbing cotton, the waterproof cloth also being sheet-like, and a sealing strip being provided at the butt joint on the outer side of the waterproof cloth, several insertion posts being fixedly installed on both long sides of the inner arc surface of the sealing strip, the insertion posts on both sides passing through both sides of the waterproof cloth, and positioning holes for insertion of the insertion posts being opened on both long sides of the sound-absorbing cotton, two halves of the outer cover being provided on the outer side of the waterproof cloth, the two halves of the outer cover surrounding the waterproof cloth, and an elastic airbag being installed at the inner edge of the outer cover, and a valve core being installed on the surface of the outer cover.

[0006] Preferably, a heat insulation film is provided between the inner wall of the sound-absorbing cotton and the outer side of the pipe body. The heat insulation film is sheet-shaped and U-shaped strips and inserts are fixedly installed on both sides of the heat insulation film.

[0007] Preferably, the insert is inserted into the inner wall of the U-shaped strip, and a retaining strip is provided on the outer side of the heat insulation film near the U-shaped strip. Several protrusions for penetrating the U-shaped strip and the insert are fixedly installed on the inner arc surface of the retaining strip.

[0008] Preferably, screws are provided through both ends of the card strip, and the screws pass through the U-shaped strip and are threadedly connected to the insert strip.

[0009] Preferably, clamps are installed at both ends of the outer side of the waterproof cloth, and convex rings that fit against the outer arc surface of the clamps are fixedly installed at both ends of the outer cover, and pins are provided between the clamp surface and the convex rings.

[0010] Preferably, one side of the two outer covers opposite the cover opening is hinged, and the other side of the outer covers opposite the cover opening is detachably connected to a clamp.

[0011] Preferably, two holes are provided at both ends of the outer arc surface of the card strip, and the two holes are respectively inserted into two posts on the same side of the inner arc surface of the sealing strip.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the innermost heat insulation film can block the high temperature of the medium inside the pipe and prevent the external sound-absorbing and waterproof structures from aging due to high temperature; at the same time, it can also reduce the direct contact between the medium and the external structure to a certain extent, reducing the risk of chemical corrosion. The middle sound-absorbing cotton and the outer waterproof cloth and cover form a multi-layer barrier, which can reduce the physical scouring of the structure by high-velocity medium or medium containing solid particles and protect the internal structure from direct impact.

[0014] 2. In this utility model, after the elastic airbag expands, it applies a uniform and continuous force to the sound-absorbing cotton, so that the sound-absorbing cotton always fits tightly against the pipe, ensuring that the sound-absorbing cotton can efficiently absorb the noise transmitted in the pipe and can adapt to the slight deformation of the pipe, maintaining a stable noise reduction effect for a long time. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural diagram of an industrial pipeline noise reduction and sound absorption structure;

[0016] Figure 2 This utility model proposes a noise reduction and sound absorption structure for industrial pipelines. Figure 1 A schematic diagram of the exploded structure;

[0017] Figure 3 This utility model provides a structural schematic diagram of an industrial pipeline noise reduction and sound absorption structure cover;

[0018] Figure 4 for Figure 2Enlarged view of point A in the middle.

[0019] Legend: 1. Outer cover; 2. Valve core; 3. Pipe body; 4. Elastic airbag; 5. Waterproof cloth; 6. Insert post; 7. Sealing strip; 8. Sound-absorbing cotton; 9. Positioning hole; 10. Clamp; 11. Heat insulation film; 12. Pin; 13. Raised ring; 14. Clip; 15. Raised post; 16. U-shaped strip; 17. Screw; 18. Insert strip; 19. Hole. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4 As shown, an industrial pipeline noise reduction and sound absorption structure includes a pipeline body 3. Sound-absorbing cotton 8 is installed on the outer wall of the pipeline body 3. The sound-absorbing cotton 8 is sheet-shaped and surrounds the outer wall of the pipeline body 3 on both sides. The sound-absorbing cotton 8 is glued to its butt joints, and a waterproof cloth 5 is installed on the outer side of the sound-absorbing cotton 8. The waterproof cloth 5 is also sheet-shaped, and a sealing strip 7 is provided at the butt joint on the outer side of the waterproof cloth 5. Several inserts 6 are fixedly installed on both long sides of the inner arc surface of the sealing strip 7. The inserts 6 on both sides penetrate both sides of the waterproof cloth 5, and positioning holes 9 for inserting the inserts 6 are opened on both long sides of the sound-absorbing cotton 8. Two half-covers 1 are provided on the outer side of the waterproof cloth 5, surrounding the waterproof cloth 5. Elastic airbags 4 are installed at the inner edge of the outer cover 1. A valve core 2 is installed on the surface of the outer cover 1, and air is inflated into the elastic airbags 4 through the valve core 2 on the surface of the outer cover 1. As air is injected, the elastic airbags 4 gradually expand, and after expansion, they tightly adhere to the surface of the waterproof cloth 5. Because the expansion force of the elastic airbag 4 acts evenly on the waterproof cloth 5, the waterproof cloth 5 transmits this force to the sound-absorbing cotton 8 on the inner side. Under the continuous expansion pressure of the elastic airbag 4, the sound-absorbing cotton 8 is subjected to a uniform force from the outside, thus allowing it to adhere tightly to the outside of the heat insulation film 11, and under the pressure transmission, the heat insulation film 11 adheres tightly to the surface of the pipe body 3. In this way, the sound-absorbing cotton 8 can fully contact the pipe, and when noise propagates inside the pipe, the sound-absorbing cotton 8 can efficiently absorb the sound, achieving the ultimate goal of noise reduction and sound attenuation. Moreover, the flexible expansion and bonding method of the elastic airbag 4 can adapt to the slight deformation that may occur in the pipe, always maintaining effective pressure on the sound-absorbing cotton 8, ensuring the stability of the noise reduction effect;

[0023] A heat insulation film 11 is installed between the inner wall of the sound-absorbing cotton 8 and the outer side of the pipe body 3. The sheet-like sound-absorbing cotton 8 is wrapped around the outside of the heat insulation film 11, and the butt joints of the sound-absorbing cotton 8 are connected by adhesive to ensure that it forms a complete ring to cover the pipe body 3. Then, a sheet-like waterproof cloth 5 is covered. The sealing strip 7 at the outer joint of the waterproof cloth 5 passes through the positioning holes 9 of the waterproof cloth 5 and the sound-absorbing cotton 8 through the insertion posts 6 on both sides of the inner arc surface, so as to achieve a reliable connection between the sealing strip 7, the waterproof cloth 5 and the sound-absorbing cotton 8. This allows the waterproof cloth 5 to effectively block external moisture and protect the sound absorption performance of the sound-absorbing cotton 8.

[0024] The heat insulation film 11 is sheet-shaped, and U-shaped strips 16 and inserts 18 are fixedly installed on both sides of the heat insulation film 11. The inserts 18 are inserted into the inner wall of the U-shaped strips 16. A retaining strip 14 is provided on the outer side of the heat insulation film 11 near the U-shaped strips 16. Several protrusions 15 for passing through the U-shaped strips 16 and inserts 18 are fixedly installed on the inner arc surface of the retaining strip 14. Screws 17 are provided through both ends of the retaining strip 14. The screws 17 pass through the U-shaped strips 16 and are threadedly connected to the inserts 18. The heat insulation film 11 is wrapped around the outside of the pipe body 3 in sheet form. The initial enclosure is completed by inserting the insert strip 18 and the U-shaped strip 16. Then, the U-shaped strip 16 and the insert strip 18 are penetrated by the protrusion 15 on the clamp strip 14, and the clamp strip 14, U-shaped strip 16 and insert strip 18 are fastened with screws 17 to ensure that the heat insulation film 11 fits tightly against the pipe body 3, so as to play a good heat insulation role and avoid the temperature of the medium inside the pipe from having an adverse effect on the external sound absorption, waterproof and other structures.

[0025] Clamps 10 are installed at both ends of the outer side of the waterproof cloth 5. Applying pressure to both ends of the waterproof cloth 5 using the clamps 10 allows the waterproof cloth 5 to press inwards against the sound-absorbing cotton 8 and the heat insulation film 11, thus fixing the relative position of the waterproof cloth 5 to the pipe body 3. The clamps 10 are then tightened to secure them to the surface of the pipe body 3. Both ends of the outer cover 1 have protruding rings 13 fixedly installed that fit against the outer arc surface of the clamps 10. Pins 12 are placed between the surface of the clamps 10 and the protruding rings 13. One side of the two outer covers 1 opposite the opening is hinged, while the other side of the outer cover 1 opposite the opening is detachably connected to the clamps 10. The two halves of the outer cover 1 are wrapped around the outside of the waterproof cloth 5. The elastic air bladders 4 on the inner edge of the outer cover 1 are initially in an uninflated state. The protruding rings 13 at both ends of the outer cover 1 fit against the outer arc surface of the clamps 10 on the outside of the waterproof cloth 5, and the pins 12 secure their positions, ensuring the outer cover 1 is firmly installed. Meanwhile, the holes 19 at both ends of the outer arc surface of the card strip 14 are inserted into the inserts 6 on the same side of the inner arc surface of the sealing strip 7, further enhancing the connection stability between the layers of the structure and making the positioning of the entire structure more precise in the circumferential direction.

[0026] Two holes 19 are provided at both ends of the outer arc surface of the clip 14. The two holes 19 are respectively inserted into the two posts 6 on the same side of the inner arc surface of the sealing strip 7, so as to fix the relative position of the clip 14 and the sealing strip 7.

[0027] The method of using this utility model is as follows: Wrap the sheet-like heat insulation film 11 around the outside of the pipe body 3. Use the inserts 18 on both sides of the heat insulation film 11 to connect with the U-shaped strip 16 to complete the initial enclosure. Place the clip 14 on the outside of the heat insulation film 11 near the U-shaped strip 16, so that the protrusions 15 on the clip 14 pass through the U-shaped strip 16 and the inserts 18. Use screws 17 to fasten the clip 14, U-shaped strip 16 and inserts 18 to ensure that the heat insulation film 11 fits tightly against the pipe body 3. Wrap the sheet-like sound-absorbing cotton 8 around the outside of the heat insulation film 11. The butt joints of the sound-absorbing cotton 8 are glued together to form a complete ring covering the pipe. Cover with sheet-like waterproof cloth 5. Use the inserts 6 on the long sides of the inner arc surface of the sealing strip 7 to pass through the positioning holes 9 of the waterproof cloth 5 and the sound-absorbing cotton 8 respectively to achieve the connection of the sealing strip 7, the waterproof cloth 5 and the sound-absorbing cotton 8. Simultaneously, the holes 19 at both ends of the outer arc surface of the clip 14 are inserted into the posts 6 on the same side of the inner arc surface of the sealing strip 7 to enhance the circumferential positioning of the structure. Clamps 10 are installed at both ends of the outer side of the waterproof cloth 5, and the clamps 10 are tightened to fix it to the surface of the pipe body 3. Pressure is applied to both ends of the waterproof cloth 5, thereby causing the two ends of the waterproof cloth 5 to apply pressure inward to the sound-absorbing cotton 8 and the heat insulation film 11, fixing the relative position of the two ends of the waterproof cloth 5 to the pipe body 3. The two halves of the outer cover 1 are wrapped around the outside of the waterproof cloth 5, with one end of the outer cover 1 hinged, and the other... The end is detachably connected to the clamp 10, so that the convex rings 13 at both ends of the outer cover 1 fit with the outer arc surface of the clamp 10. The position of the convex rings 13 and the clamp 10 is fixed by the pins 12 to ensure that the outer cover 1 is installed firmly. At this time, the elastic airbags 4 on the inner wall edge of the outer cover 1 are in an uninflated state. The elastic airbags 4 are inflated by the valve core 2 on the surface of the outer cover 1. After the elastic airbags 4 expand, they fit against the surface of the waterproof cloth 5 and apply a uniform force to the outside of the sound-absorbing cotton 8, so that the sound-absorbing cotton 8 fits against the heat insulation film 11 and the heat insulation film 11 fits more tightly against the pipe body 3.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A noise reduction and muffling structure for industrial pipes, comprising a pipe body (3), characterized in that: The outer wall of the pipe body (3) is fitted with sound-absorbing cotton (8). The sound-absorbing cotton (8) is sheet-shaped and surrounds the outer wall of the pipe body (3) on both sides. The sound-absorbing cotton (8) is glued to the butt joint and a waterproof cloth (5) is provided on the outside of the sound-absorbing cotton (8). The waterproof cloth (5) is also sheet-shaped and a sealing strip (7) is provided at the butt joint on the outside of the waterproof cloth (5). Several inserts (6) are fixedly installed on both sides of the inner arc surface of the sealing strip (7). Several inserts (6) on both sides penetrate the waterproof cloth (5) and positioning holes (9) for inserting the inserts (6) are opened on both sides of the long side of the sound-absorbing cotton (8). Two halves of the outer cover (1) are provided on the outside of the waterproof cloth (5). The two halves of the outer cover (1) surround the waterproof cloth (5) and an elastic airbag (4) is installed at the inner edge of the outer cover (1). A valve core (2) is installed on the surface of the outer cover (1).

2. The industrial pipe noise reduction and damping structure of claim 1, wherein: A heat insulation film (11) is provided between the inner wall of the sound-absorbing cotton (8) and the outer side of the pipe body (3). The heat insulation film (11) is sheet-like and U-shaped strips (16) and inserts (18) are fixedly installed on both sides of the heat insulation film (11).

3. The industrial duct noise reducing and absorbing structure according to claim 2, wherein: The insert (18) is inserted into the inner wall of the U-shaped strip (16). A retaining strip (14) is provided on the outer side of the heat insulation film (11) near the U-shaped strip (16). Several protrusions (15) for penetrating the U-shaped strip (16) and the insert (18) are fixedly installed on the inner arc surface of the retaining strip (14).

4. The industrial duct noise reducing and absorbing structure according to claim 3, characterized in that: Screws (17) are provided at both ends of the card strip (14). The screws (17) pass through the U-shaped strip (16) and are threadedly connected to the insert strip (18).

5. The industrial duct noise reducing and absorbing structure according to claim 1, wherein: The waterproof cloth (5) is equipped with clamps (10) at both ends of the outer side. The outer cover (1) is fixedly equipped with convex rings (13) that fit the outer arc surface of the clamps (10) at both ends of the cover opening. A pin (12) is provided between the surface of the clamps (10) and the convex rings (13).

6. The industrial pipeline noise reduction and silencing structure according to claim 1, characterized in that: The two outer covers (1) are hinged on one side of the opening of the cover, and the other side of the outer cover (1) is detachably connected to the clamp (10).

7. The industrial duct noise reducing and absorbing structure according to claim 3, wherein: Two holes (19) are opened at both ends of the outer arc surface of the card strip (14), and the two holes (19) are respectively inserted into the two inserts (6) on the same side of the inner arc surface of the sealing strip (7).

Images