A bellows

Abstract

The utility model discloses a corrugated pipe relates to pipeline field, including the isolation layer, support layer, sound-absorbing layer, shock attenuation layer and heat insulation layer from inside to outside are sequentially arranged, wherein the support layer includes the filling of the axial clearance in the flexibility support and setting, and the support and filling constitute the kinetic energy support layer for absorbing the fluid of being transported, the shock attenuation layer includes the wrinkle corresponding with the support, and the cavity of sound insulation is constituted between the wrinkle and sound-absorbing layer, not only can insulate the noise of the vibration that produces in the fluid conveying process, and the noise that both common cooperation realizes to the corrugated pipe use process produces carries out sound-absorbing, the cavity can also effectively insulate external heat, and when the cavity in the gas thermal expansion and cold shrink of heat too high make the cavity rupture, and it is convenient for maintenance personnel to find and replace.

Description

Technical Field

[0001] This utility model relates to the field of pipelines, specifically to a corrugated pipe. Background Technology

[0002] Pipes are generally hollow cylinders. Depending on the material of the pipe and the environment in which it is used, they are usually made of metal. However, metal pipes have a fixed structure and are heavy, so the production precision requirements for pipe dimensions are extremely high. This results in high production costs and makes them difficult to use in daily life. At the same time, metal pipes are susceptible to corrosion, which leads to high maintenance costs.

[0003] With the development of science and technology and the progress of productivity, corrugated pipes have emerged. A corrugated pipe is a tubular elastic sensitive element made of foldable corrugated sheets connected along the folding and stretching direction. It is a cylindrical thin-walled corrugated shell with multiple transverse corrugations. Corrugated pipes are elastic and can generate displacement under pressure, axial force, transverse force or bending moment. People have found that they have the advantages of lightweight structure and easy installation in daily life for gas or water transportation. At the same time, they do not have the problem of corrosion, have low production cost and high cost performance, and are suitable for application in daily life.

[0004] However, the general corrugated pipe structure has weak support capacity and cannot provide adequate support. It is also unable to clean the surface. During long-term use, it will deform at a high frequency (when not in use, it will be vertically downward and close to the support surface due to gravity; when in use, especially during gas transmission, it will be impacted by gas on the inner wall), resulting in a short service life. At the same time, it will generate a lot of noise during gas or water transmission, causing noise pollution, which does not meet the requirements of green production. Utility Model Content

[0005] The technical problem to be solved by this utility model is that the traditional corrugated pipe structure has insufficient support and high noise during use. Therefore, a corrugated pipe is provided.

[0006] A corrugated pipe adopts the following technical solution: A corrugated pipe comprises, from the inside out, an isolation layer, a support layer, a sound-absorbing layer, a shock-absorbing layer, and a heat-insulating layer arranged sequentially. The support layer includes a bracket, which includes at least a flexible structure, and the axial gaps of the bracket are filled with filler to form a complete tube.

[0007] By adopting the above technical solution, the bracket provides support for the corrugated pipe, and the flexible structure and filler form a complete pipe body by supporting the layer, ensuring that the corrugated pipe has the ability to bend and recover during use, which can prevent the corrugated pipe from breaking after being subjected to large deformation and increase its service life.

[0008] Furthermore, the support is an elastic support.

[0009] Furthermore, the filler is interference-fitted with the supports on both sides.

[0010] When the support is an elastic support, the interference fit between the filler and the two supports on both sides can give the support layer a certain elastic potential energy. During the use of the corrugated pipe, it can absorb some of the kinetic energy of the fluid impacting the pipe body. After deformation, the compressed filler can promptly rebound the pipe body, consume the fluid kinetic energy, and play a role in absorbing vibration.

[0011] Furthermore, the support is a rigid support.

[0012] Furthermore, the filler naturally fits into the supports on both sides.

[0013] When the support is rigid, the support capacity of the pipe body is further improved. During the use of the corrugated pipe, it can absorb some of the kinetic energy of the fluid impacting the pipe body, and avoid excessive deformation of the pipe body during the fluid transportation process, thus playing a role in noise reduction.

[0014] Furthermore, the isolation layer is made of non-woven fabric.

[0015] Non-woven fabric has good toughness, which can help the corrugated pipe rebound, and at the same time effectively isolate the conveyed fluid from contact with the support layer, reducing the aging of the support layer.

[0016] Preferably, an isolation layer is provided between the support layer and the sound-absorbing layer.

[0017] An isolation layer is provided between the support layer and the sound-absorbing layer to prevent fluid leakage in the event of a rupture in the support layer.

[0018] Furthermore, the sound-absorbing layer is sound-absorbing cotton.

[0019] Sound-absorbing cotton can absorb vibrations during the process of fluid transport in corrugated pipes, thus ultimately playing a role in noise reduction.

[0020] Furthermore, the shock-absorbing layer is shock-absorbing cotton, and the shock-absorbing cotton has folds corresponding to the bracket.

[0021] The shock-absorbing layer has folds that correspond to the support, ensuring that the shock-absorbing layer will not tear when the support deforms. At the same time, it forms several cavities for sound insulation with the sound-absorbing layer. The cavities can also effectively prevent the tube from deforming due to excessive external temperature. When the external temperature is too high and damage occurs, the gas in the cavity will expand and contract due to heat, causing the cavity to rupture. This can be detected and replaced by staff in time.

[0022] Furthermore, the heat insulation layer is a heat insulation sponge, and the outer surface of the heat insulation sponge is provided with a reflective layer.

[0023] The heat-insulating sponge and reflective layer can effectively reflect external heat and prevent the corrugated pipe temperature from rising too quickly.

[0024] In summary, this application also includes at least the following effects: 1. The support layer provides support for the bellows, effectively reducing the deformation frequency. Through the combination of the filler and the flexible support, it still has the ability to bend arbitrarily. The filler acts as a springback for the bellows, and through deformation, it effectively absorbs the kinetic energy of the fluid inside the bellows, thus playing a role in noise reduction. 2. The isolation layers inside and outside the support layer serve as an isolation layer and can also prevent leakage to a certain extent; 3. The shock-absorbing layer has folds that correspond to the support, ensuring that the shock-absorbing layer will not be torn when the support deforms. At the same time, it forms several cavities for sound insulation with the sound-absorbing layer. The cavities can also effectively prevent the tube from deforming due to excessive external temperature. When the external temperature is too high and damage occurs, the gas in the cavity will expand and contract due to heat, causing the cavity to rupture. This can be detected and replaced by staff in time. Attached Figure Description

[0025] Figure 1 A schematic diagram of a bellows structure provided for an embodiment of this utility model; Figure 2 This is an enlarged structural diagram of point A of a bellows, as proposed in an embodiment of this utility model.

[0026] Figure label: 1. Insulation layer; 2. Support layer; 21. Bracket; 22. Filler; 3. Sound-absorbing layer; 4. Vibration-damping layer; 41. Pleats; 42. Cavity; 5. Heat insulation layer; 51. Reflective layer. Detailed Implementation

[0027] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. Example

[0028] refer to Figure 1 , 2 A corrugated pipe includes, from the inside out, an isolation layer 1, a support layer 2, a sound-absorbing layer 3, a shock-absorbing layer 4, and a heat-insulating layer 5, as shown in the reference. Figure 2 The support layer 2 includes a flexible support 21, and the axial gap of the flexible support 21 is filled with filler 22. The filler 22 and the support 21 form a complete tube.

[0029] It should be noted that the support 21 is an elastic support, and the filler 22 is interference-fitted with the two side supports 21. The filler 22 is made of materials with large deformation and elasticity and toughness, such as sponge or filling cotton.

[0030] An isolation layer 1 is provided on the inner and / or outer sides of the support layer 2. The isolation layer 1 is made of a tough material with good adhesion and hydrophobicity, such as non-woven fabric.

[0031] A sound-absorbing layer 3 is provided on the outside of the support layer 2. The sound-absorbing layer 3 is made of materials with certain elasticity and toughness, such as sound-absorbing cotton.

[0032] The sound-absorbing layer 3 is provided with a shock-absorbing layer 4 on the outside. The shock-absorbing layer 4 has pleats 41 corresponding to the bracket 21. The pleats 41 and the sound-absorbing layer 3 form several cavities 42. The shock-absorbing layer 4 is made of materials with smooth and tough surfaces, such as sound insulation cotton.

[0033] The shock-absorbing layer 4 is provided with a heat insulation layer 5 on the outside, and a reflective layer 51 is provided on the outside of the heat insulation layer 5. The heat insulation layer 5 is made of heat insulation materials such as heat insulation cotton, and the reflective layer 51 is made of soft reflective plate.

[0034] The following is an explanation of the use of bellows: When the corrugated pipe transports fluid, the interference fit between the filler 22 and the supports 21 on both sides enables the support layer 2 to have a certain elastic potential energy, which can absorb part of the kinetic energy of the fluid impacting the pipe body. After deformation, the compressed filler 22 can promptly rebound the pipe body, consuming the fluid's kinetic energy and absorbing vibration. The damping layer 4 has pleats 41 corresponding to the supports 21, ensuring that the damping layer 4 will not tear when the supports 21 deforms. At the same time, it forms several cavities 42 for sound insulation with the sound-absorbing layer 3. The cavities 42 can also effectively isolate the pipe body from overheating and deformation caused by excessive external temperature. When the external temperature is too high and causes damage, the gas in the cavity 42 expands and contracts due to heat, causing the cavity 42 to rupture, which can be detected and replaced by staff in time. Example

[0035] A new implementation method is now provided based on Example 1.

[0036] refer to Figure 1 A corrugated pipe includes, from the inside out, an isolation layer 1, a support layer 2, a sound-absorbing layer 3, a shock-absorbing layer 4, and a heat-insulating layer 5, as shown in the reference. Figure 2 The support layer 2 includes a flexible support 21, and the axial gap of the flexible support 21 is filled with filler 22. The filler 22 and the support 21 form a complete tube.

[0037] The support 21 is a rigid support, and the filler 22 naturally fits with the two side supports 21. The filler 22 is made of materials with large deformation and elasticity and toughness, such as sponge or filling cotton.

[0038] When the corrugated pipe support 21 transports fluid, its rigidity further improves the pipe's supporting capacity, absorbs some of the kinetic energy of the fluid impacting the pipe, and avoids excessive deformation of the pipe itself during fluid transport, thus reducing noise.

[0039] The remaining implementation methods are the same as in Example 1.

[0040] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A corrugated pipe, characterized in that, From the inside out, it includes an isolation layer, a support layer, a sound-absorbing layer, a shock-absorbing layer, and a heat insulation layer arranged sequentially. The support layer includes a bracket, which includes at least a flexible structure, and the axial gaps of the bracket are filled with filler to form a complete tube.

2. A corrugated pipe according to claim 1, characterized in that, The support is an elastic support.

3. A corrugated pipe according to claim 2, characterized in that, The filler is interference-fitted with the supports on both sides.

4. A corrugated pipe according to claim 1, characterized in that, The bracket is a rigid bracket.

5. A corrugated pipe according to claim 3, characterized in that, The filler fits naturally with the supports on both sides.

6. A corrugated pipe according to claim 5, characterized in that, The isolation layer is made of non-woven fabric.

7. A corrugated pipe according to claim 6, characterized in that, The sound-absorbing layer is sound-absorbing cotton.

8. A corrugated pipe according to claim 7, characterized in that, The shock-absorbing layer is shock-absorbing cotton, and the shock-absorbing cotton has folds corresponding to the bracket.

9. A bellows according to any one of claims 1-8, characterized in that, The heat insulation layer is a heat insulation sponge, and the outer surface of the heat insulation sponge is provided with a reflective layer.

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