A water-cooled sound-absorbing corrugated pipe

Abstract

This utility model relates to the field of photovoltaic manufacturing accessories technology, and discloses a water-cooled silencing corrugated pipe, comprising: an inner corrugated pipe and an outer corrugated pipe nested together, forming an outer chamber for containing cooling water. The inner corrugated pipe forms an inner chamber, within which multiple baffles are spaced apart. Inlet and outlet sleeves are installed on the baffles. Airflow enters the inner chamber through the inlet sleeve, flows through a meandering path between the baffles, and exits through the outlet sleeve, forming a pressure-reducing and silencing path. This utility model, by adding baffles inside the corrugated pipe to form a silencing chamber with the inlet and outlet sleeves, performs gradient pressure reduction and speed reduction of compressed gas, significantly reducing environmental noise pollution and minimizing harm to the human body. Furthermore, by adding an outer corrugated pipe to the outside of the original corrugated pipe to form an outer chamber, a water-cooling channel is formed within the outer chamber. Cooling water is used to cool the corrugated pipe, improving the durability of the corrugated pipe material and preventing accidental burns to workers.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic manufacturing accessories technology, specifically to a water-cooled sound-absorbing corrugated pipe. Background Technology

[0002] To meet the stringent requirements of high vacuum, high stability, ultra-high cleanliness, and reliability in high-end photovoltaic manufacturing, a flexible connecting component must be used at the vacuum pump exhaust port, which generates strong vibrations and thermal effects. This component must effectively isolate vibrations, compensate for multi-directional displacements, withstand positive pressure, resist certain temperatures and corrosion, and meet ultra-high cleanliness standards. Metal bellows, with their unique structure and performance (flexibility, sealing, and reliability), have become a key technical component for solving problems such as vibration transmission, stress damage, thermal expansion jamming, and installation difficulties caused by rigid connections at the pump outlet. They are an indispensable element for ensuring the long-term stable, reliable, and safe operation of photovoltaic vacuum systems.

[0003] In the existing technology, the connection between the pump tail and the pipeline of the vacuum pump is made of ordinary corrugated pipe. However, ordinary corrugated pipe is noisy and will cause noise pollution in the field during use. In addition, the gas compressed by the vacuum pump is at a high temperature, which affects the service life of the corrugated pipe and can easily cause burns to the workers during operation.

[0004] Therefore, it is necessary to propose a water-cooled silencing corrugated pipe to at least partially solve the problems existing in the prior art. Utility Model Content

[0005] To solve the above problems, this utility model discloses a water-cooled silencing corrugated pipe, which includes:

[0006] The inner and outer corrugated pipes are nested together, forming an outer chamber for containing cooling water. The inner chamber is formed inside the inner corrugated pipe. Multiple baffles are arranged at intervals in the inner chamber. Inlet and outlet sleeves are installed on the baffles. Airflow enters the inner chamber through the inlet sleeve, flows out through the outlet sleeve after passing through the meandering path between the baffles, forming a pressure reduction and noise reduction path.

[0007] Preferably, the exhaust sleeve is provided with multiple sleeves and is evenly distributed along the circumference of the intake sleeve.

[0008] Preferably, the partition includes a first partition, a second partition, a third partition and a fourth partition arranged in sequence, and a first silencing chamber, a second silencing chamber and a third silencing chamber are formed between adjacent partitions in sequence. The air inlet sleeve passes through the first partition near the air inlet end and extends into the third silencing chamber, and the air outlet sleeve passes through the fourth partition near the air outlet end and extends into the first silencing chamber.

[0009] Preferably, the first partition includes a central hole, and the air inlet sleeve is installed in the central hole; the fourth partition includes a mounting hole, and the air outlet sleeve is installed in the mounting hole, and multiple mounting holes are evenly distributed circumferentially on the fourth partition.

[0010] Preferably, the second partition and the third partition have the same structure, both including a central hole, a mounting hole and a first vent hole, and multiple first vent holes are evenly distributed around the central hole and are staggered with the mounting holes.

[0011] Preferably, the second and third partitions further include a second vent and a third vent, with multiple second and third vents evenly distributed around the central hole, and the diameters of the first, second, and third vents being different.

[0012] Preferably, the air inlet sleeve passes through the second partition and the third partition, and there is a gap between the air inlet sleeve and both the second and third partitions; the air outlet sleeve passes through the second partition and the third partition, and there is a gap between the air outlet sleeve and both the second and third partitions.

[0013] Preferably, the outer corrugated pipe is provided with an inlet and an outlet, with the inlet located on the lower side of the outer corrugated pipe near the air inlet end and the outlet located on the upper side of the outer corrugated pipe near the air outlet end.

[0014] Preferably, the inner corrugated pipe, the outer corrugated pipe, and the partition are integrally formed.

[0015] Preferably, the air inlet sleeve is located in the area of ​​the second silencing chamber, and its side wall is uniformly provided with a number of first silencing holes; the air outlet sleeve is located in the area of ​​the second silencing chamber, and its side wall is uniformly provided with a number of second silencing holes.

[0016] Compared with the prior art, the water-cooled silencing corrugated pipe provided by this utility model has at least the following beneficial effects:

[0017] By adding baffles inside the bellows to form a silencing chamber with the inlet and outlet sleeves, the compressed gas is subjected to gradient pressure reduction and speed reduction to reduce noise, which greatly reduces on-site environmental noise pollution and reduces harm to the human body.

[0018] By adding an outer corrugated pipe to the outside of the original corrugated pipe (inner corrugated pipe) to form an outer chamber, a water-cooling channel is formed inside the outer chamber. Cooling water is used to cool the corrugated pipe, which improves the durability of the corrugated pipe material itself and avoids accidental burns to workers.

[0019] Other advantages, objectives and features of the water-cooled silencing corrugated pipe described in this utility model will be partly apparent from the following description, and partly understood by those skilled in the art through research and practice of this utility model. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of a water-cooled silencing corrugated pipe according to the present invention;

[0022] Figure 2 This is a top view of the present invention;

[0023] Figure 3 This utility model Figure 2 A schematic diagram of the cross-sectional structure along direction A in the middle;

[0024] Figure 4 This utility model Figure 3 A simplified structural diagram;

[0025] Figure 5 This utility model Figure 2 A schematic diagram of the cross-sectional structure along the B-axis;

[0026] Figure 6 This is a schematic diagram of the airflow direction in this utility model;

[0027] Figure 7 This is a schematic diagram of the structure of the first partition in this utility model;

[0028] Figure 8 This is a schematic diagram of the structure of the second partition in this utility model;

[0029] Figure 9 This is a schematic diagram of the structure of the fourth partition in this utility model;

[0030] Figure 10 This is a schematic diagram of the three-dimensional cross-sectional structure of this utility model;

[0031] Figure 11 This is a schematic diagram of the installation structure of the partition plate and sleeve in this utility model.

[0032] In the diagram: 1. Inner corrugated pipe; 2. Outer corrugated pipe; 3. Outer chamber; 4. Inner chamber; 5. Inlet sleeve; 6. Outlet sleeve; 7. First partition; 8. Second partition; 9. Third partition; 10. Fourth partition; 11. First silencing chamber; 12. Second silencing chamber; 13. Third silencing chamber; 14. Center hole; 15. Mounting hole; 16. First vent hole; 17. Second vent hole; 18. Third vent hole; 19. Water inlet; 20. Water outlet; 21. First silencing hole; 22. Second silencing hole. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] Example

[0035] like Figures 1-11 As shown, this embodiment provides a water-cooled silencing corrugated pipe, comprising:

[0036] The inner bellows 1 and the outer bellows 2 are nested together, forming an outer chamber 3 for containing cooling water. An inner chamber 4 is formed inside the inner bellows 1. Multiple baffles are spaced apart in the inner chamber 4. An inlet sleeve 5 and an outlet sleeve 6 are installed on the baffles. The airflow enters the inner chamber 4 through the inlet sleeve 5, and flows out through the outlet sleeve 6 after passing through the meandering path between the baffles, forming an airflow path with pressure reduction and noise reduction functions.

[0037] Multiple exhaust sleeves 6 are provided and are evenly distributed around the circumference of the intake sleeve 5.

[0038] The working principle and beneficial effects of this utility model are as follows:

[0039] The water-cooled silencing corrugated pipe adopts a nested structure of inner corrugated pipe 1 and outer corrugated pipe 2, with flanges at both ends of the inner corrugated pipe 1. During use, the inlet end of the inner corrugated pipe 1 is connected and fixed to the outlet pipe of the vacuum pump using clamps, and the outlet end is connected and fixed to the exhaust pipe using clamps. After the airflow enters the inner chamber 4 through the inlet sleeve 5, it is blocked and guided by the baffle, forming a meandering flow path, and finally flows out through the outlet sleeve 6. After the flow is controlled and pressure reduced by the baffle, the gas noise can be significantly reduced, greatly reducing environmental noise pollution and minimizing harm to the human body. The inlet sleeve 5 and outlet sleeve 6 can be made of stainless steel.

[0040] The gas compressed by the vacuum pump is at a high temperature, and the gas also generates some heat during the silencing process. Therefore, an outer corrugated pipe 2 is added on the basis of the inner corrugated pipe 1, and the outer corrugated pipe 2 is completely sealed to the inner corrugated pipe 1 at both ends to form an outer chamber 3. The outer chamber 3 is connected to the cooling water pipe, and the heat in the gas is absorbed by the flow of cooling water to achieve the effect of water cooling, which improves the durability of the corrugated pipe material itself and can also prevent workers from being accidentally burned.

[0041] In one embodiment, the partition includes a first partition 7, a second partition 8, a third partition 9, and a fourth partition 10 arranged sequentially. A first silencing chamber 11, a second silencing chamber 12, and a third silencing chamber 13 are formed sequentially between adjacent partitions. An air inlet sleeve 5 passes through the first partition 7 near the air inlet end and extends into the third silencing chamber 13. An air outlet sleeve 6 passes through the fourth partition 10 near the air outlet end and extends into the first silencing chamber 11.

[0042] The first partition 7 includes a central hole 14, and the air inlet sleeve 5 is installed in the central hole 14; the fourth partition 10 includes a mounting hole 15, and the air outlet sleeve 6 is installed in the mounting hole 15, and multiple mounting holes 15 are evenly distributed circumferentially on the fourth partition 10.

[0043] The second partition 8 and the third partition 9 have the same structure, both including a central hole 14 corresponding to the first partition 7, a mounting hole 15 corresponding to the fourth partition 10, and a first vent hole 16. Multiple first vent holes 16 are evenly distributed around the central hole 14 and are staggered with the mounting holes 15.

[0044] The working principle and beneficial effects of the above technical solution are as follows:

[0045] The first partition 7 blocks the high-temperature compressed gas, allowing it to enter through the inlet sleeve 5 and be transported to the third silencing chamber 13; it then flows back to the second silencing chamber 12 through the first vent hole 16 on the third partition 9, and then flows back to the first silencing chamber 11 through the first vent hole 16 on the second partition 8. The returned gas enters the outlet sleeve 6 and is transported to its other end, flowing out from the outlet end of the corrugated pipe.

[0046] Through the above structural design, by adding baffles inside the bellows to form chambers with the inlet sleeve 5 and outlet sleeve 6, a meandering airflow path is formed. The airflow passes through multiple silencer chambers, realizing multi-stage gradient depressurization of compressed gas, reducing flow velocity and noise, significantly reducing on-site environmental noise pollution, and reducing harm to the human body.

[0047] In one embodiment, the second partition 8 and the third partition 9 further include a second vent 17 and a third vent 18, with a plurality of second vent 17 and a plurality of third vent 18 evenly distributed around the central hole 14, and the diameters of the first vent 16, the second vent 17 and the third vent 18 being different.

[0048] The working principle and beneficial effects of the above technical solution are as follows:

[0049] Gas reflux is achieved by setting vents on the second partition 8 and the third partition 9. The first vent 16 is the main reflux channel, and the second vent 17 and the third vent 18 are auxiliary reflux channels. The vents are evenly arranged on each plate and have different diameters, which can make full use of the partition space, ensure smooth reflux, and reduce the additional vibration noise generated by the airflow impacting the partition during the reflux process.

[0050] In one embodiment, the air inlet sleeve 5 passes through the second partition 8 and the third partition 9, and there is a gap between the air inlet sleeve 5 and both the second partition 8 and the third partition 9; the air outlet sleeve 6 passes through the second partition 8 and the third partition 9, and there is a gap between the air outlet sleeve 6 and both the second partition 8 and the third partition 9.

[0051] The working principle and beneficial effects of the above technical solution are as follows:

[0052] Gap is provided between the intake sleeve 5 and the center hole 14 of the second partition 8 and the third partition 9, and between the exhaust sleeve 6 and the mounting hole 15 of the second partition 8 and the third partition 9, so that the above-mentioned noise reduction structure can be compatible with the flexible structure of the bellows and adapt to the bending deformation of the bellows.

[0053] In one embodiment, the outer corrugated pipe 2 is provided with an inlet 19 and an outlet 20. The inlet 19 is located on the lower side of the outer corrugated pipe 2 near the air inlet end, and the outlet 20 is located on the upper side of the outer corrugated pipe 2 near the air outlet end.

[0054] The working principle and beneficial effects of the above technical solution are as follows:

[0055] A sealed outer chamber 3 is formed between the outer corrugated pipe 2 and the inner corrugated pipe 1. An inlet 19 is provided on the outer corrugated pipe 2 to connect to a cooling water pipe, and an outlet 20 is provided to connect to a cooling water return pipe. Cooling water is injected into the outer chamber 3 through the inlet 19, filling the space between the inner corrugated pipe 1 and the outer corrugated pipe 2, and flows out through the outlet 20. The flowing cooling water continuously carries away the heat conducted from the inner corrugated pipe 1, effectively reducing the temperature of the entire corrugated pipe, improving the durability of the corrugated pipe material, and preventing accidental burns to workers.

[0056] In one embodiment, the inner corrugated pipe 1, the outer corrugated pipe 2, and the partition are integrally formed.

[0057] The working principle and beneficial effects of the above technical solution are as follows:

[0058] The inner corrugated pipe 1, the outer corrugated pipe 2, and the baffle are integrally formed, which can improve the sealing between the inner corrugated pipe 1 and the outer corrugated pipe 2 and prevent cooling water from leaking out; at the same time, it can improve the sealing between the outer corrugated pipe 2 and the baffle, reduce air leakage, and ensure that the high-temperature compressed gas flows along the preset path.

[0059] In one embodiment, the air inlet sleeve 5 is located in the area of ​​the second silencing chamber 12, and its sidewall is uniformly provided with a plurality of first silencing holes 21. The air outlet sleeve 6 is located in the area of ​​the second silencing chamber 12, and its sidewall is uniformly provided with a plurality of second silencing holes 22.

[0060] The working principle and beneficial effects of the above technical solution are as follows:

[0061] The gas in the inlet sleeve 5 can communicate with the second silencer chamber 12 through the first silencer hole 21, and the gas in the outlet sleeve 6 can communicate with the second silencer chamber 12 through the second silencer hole 22. The gas disperses through the silencer hole, which reduces the air pressure of the main airflow on the one hand, and the dispersed airflow collides and disturbs with the main airflow, consuming kinetic energy, further reducing the gas velocity, and improving the pressure reduction and speed reduction silencer effect.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A water-cooled sound attenuation bellows, characterized in that, The application relates to a pressure-reducing and sound-damping device. The outer chamber (3) for containing cooling water is formed between the nested inner corrugated pipe (1) and outer corrugated pipe (2), the inner chamber (4) is formed in the inner corrugated pipe (1), a plurality of partitions are arranged in the inner chamber (4) in a spaced manner, the air inlet sleeve (5) and air outlet sleeve (6) are arranged on the partitions, the air flow enters the inner chamber (4) through the air inlet sleeve (5), and the air flow flows out of the air outlet sleeve (6) after winding through the partitions, thereby forming a pressure-reducing and sound-damping path.

2. A water-cooled sound attenuation bellows according to claim 1, wherein, The air outlet sleeve (6) is provided with a plurality of air outlet sleeves which are uniformly distributed along the circumferential direction of the air inlet sleeve (5).

3. A water-cooled sound attenuation bellows according to claim 1, wherein, The partitions comprise a first partition (7), a second partition (8), a third partition (9) and a fourth partition (10) which are arranged in sequence, the first sound-damping chamber (11), the second sound-damping chamber (12) and the third sound-damping chamber (13) are sequentially formed between the adjacent partitions, the air inlet sleeve (5) penetrates through the first partition (7) close to the air inlet end and extends into the third sound-damping chamber (13), and the air outlet sleeve (6) penetrates through the fourth partition (10) close to the air outlet end and extends into the first sound-damping chamber (11).

4. A water-cooled sound attenuation bellows according to claim 3, wherein, The first partition (7) comprises a central hole (14), and the air inlet sleeve (5) is arranged in the central hole (14); the fourth partition (10) comprises a mounting hole (15), and the air outlet sleeve (6) is arranged in the mounting hole (15); and a plurality of mounting holes (15) are uniformly distributed along the circumferential direction of the fourth partition (10).

5. A water-cooled sound attenuation bellows according to claim 4, wherein, The second partition (8) and the third partition (9) are the same in structure and comprise a central hole (14), a mounting hole (15) and a first air hole (16); a plurality of first air holes (16) are uniformly distributed along the circumferential direction of the central hole (14) and are arranged in an interlaced mode with the mounting hole (15).

6. A water-cooled sound attenuation bellows according to claim 5, wherein, The second partition (8) and the third partition (9) further comprise a second air hole (17) and a third air hole (18); a plurality of second air holes (17) and a plurality of third air holes (18) are uniformly distributed along the circumferential direction of the central hole (14); and the diameters of the first air hole (16), the second air hole (17) and the third air hole (18) are different.

7. A water-cooled sound attenuation bellows according to claim 3, wherein, The air inlet sleeve (5) penetrates through the second partition (8) and the third partition (9), and gaps are formed between the air inlet sleeve (5) and the second partition (8) and the third partition (9); and the air outlet sleeve (6) penetrates through the second partition (8) and the third partition (9), and gaps are formed between the air outlet sleeve (6) and the second partition (8) and the third partition (9).

8. A water-cooled sound attenuation bellows according to claim 1, wherein, The outer corrugated pipe (2) is provided with a water inlet (19) and a water outlet (20); the water inlet (19) is arranged on the lower side of the outer corrugated pipe (2) close to the air inlet end; and the water outlet (20) is arranged on the upper side of the outer corrugated pipe (2) close to the air outlet end.

9. A water-cooled sound attenuation bellows according to claim 1, wherein, The inner corrugated pipe (1), the outer corrugated pipe (2) and the partitions are integrally formed.

10. A water-cooled sound attenuation bellows according to claim 3, wherein, The air inlet sleeve (5) is arranged in the region of the second sound-damping chamber (12), and a plurality of first sound-damping holes (21) are uniformly arranged on the side wall of the air inlet sleeve (5); and the air outlet sleeve (6) is arranged in the region of the second sound-damping chamber (12), and a plurality second sound-damping holes (22) are uniformly arranged on the side wall of the air outlet sleeve (6).

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