Noise reduction type adsorption dryer

Abstract

The invention relates to a noise reduction type adsorption dryer, relates to the technical field of dryers, and aims to solve the problem of overlarge noise during regeneration and exhaust of adsorption towers. The noise reduction type adsorption dryer comprises a rack, two adsorption towers are arranged on the rack, each adsorption tower is provided with an exhaust pipe, and a noise reduction mechanism is arranged at an outlet of the exhaust pipe; the noise reduction mechanism comprises a noise reduction pipe body, a noise reduction barrel and a noise reduction pipe, the noise reduction pipe body is connected to an outlet of the exhaust pipe, the interior of the noise reduction pipe body is of a hollow structure, the noise reduction barrel is arranged in the noise reduction pipe body, a noise reduction cavity is formed in the noise reduction barrel and the noise reduction pipe body, a noise reduction channel is formed in the noise reduction barrel, and a plurality of bent notches are formed in the noise reduction barrel in a penetrating mode; the multiple bent notches communicate with the interior of the noise reduction cavity, the noise reduction channel is formed in the length direction of the noise reduction barrel and communicates with the multiple bent notches, the noise reduction pipe is arranged in the noise reduction channel, and multiple noise reduction holes are formed in the noise reduction pipe in a penetrating mode. The device has the effects of changing a gas flowing path and achieving deep noise suppression.

Description

Technical Field

[0001] The present application relates to the technical field of dryers, and in particular to a noise-reducing adsorption dryer. Background Art

[0002] Adsorption dryer is a kind of equipment widely used in industries such as industry, food and pharmaceuticals. Its main working principle is to remove moisture from materials through adsorbents. This equipment usually consists of two or more adsorption towers, each of which is filled with adsorbents such as silica gel, activated alumina or molecular sieves. When wet air enters from the air inlet of the dryer, it passes through an adsorption tower filled with adsorbents. The water vapor in the wet air will be adsorbed by the adsorbent, and the dried air will flow out from the outlet of the adsorption tower.

[0003] As the adsorption process proceeds, the adsorbent will gradually become saturated, that is, most of its moisture absorption capacity has been used up; in order to regenerate the adsorbent, the adsorption dryer is usually designed with a regeneration link. During the regeneration process, the saturated adsorption tower will be switched to the regeneration state. At this time, hot air or high-temperature dry air is introduced into the adsorption tower to evaporate the moisture in the adsorbent, and the evaporated water vapor is discharged out of the system; through such a regeneration link, the adsorption dryer can continuously remove moisture and provide a dry air supply.

[0004] In the prior art, when a saturated adsorption tower is regenerated, a large amount of hot air or high-temperature dry air evaporates water and is quickly discharged. The flow rate and pressure changes of these gases will generate strong noise at the exhaust port. However, the regeneration exhaust process is often accompanied by excessive noise, which will not only interfere with the surrounding environment and affect people's normal life and work, but may also have a negative impact on the stable operation of the equipment, such as interfering with the normal monitoring and control of the equipment, so it needs to be improved. Summary of the invention

[0005] In order to solve the problem of excessive noise during the regeneration exhaust of an adsorption tower, the present application provides a noise-reducing adsorption dryer.

[0006] The present application provides a noise reduction adsorption dryer adopting the following technical solution: A noise reduction adsorption dryer comprises a frame, wherein two adsorption towers are arranged on the frame, and the two adsorption towers are both provided with an air inlet pipe and an air outlet pipe, and a regeneration mechanism for regeneration is arranged between the two adsorption towers, and each of the adsorption towers is provided with an exhaust pipe, and a noise reduction mechanism for noise reduction is arranged at the outlet of the exhaust pipe, and the noise reduction mechanism comprises a noise reduction pipe body, a silencer and a silencer pipe, and the noise reduction pipe body is connected at the outlet of the exhaust pipe, and the interior of the noise reduction pipe body is a hollow structure, and the silencer pipe is arranged in the noise reduction pipe body, and a noise reduction chamber is formed between the silencer pipe and the noise reduction pipe body, and a silencer channel is opened inside the silencer, and a plurality of curved notches are opened through the silencer, and the plurality of curved notches are connected to the noise reduction chamber, and the silencer channel is opened along the length direction of the silencer, and the silencer channel is connected with the plurality of curved notches, and the silencer pipe is arranged in the silencer channel, and a plurality of silencer holes are opened through the silencer pipe.

[0007] When a saturated adsorption tower is regenerated, a large amount of hot air or high-temperature dry air evaporates water and is quickly discharged. The flow rate and pressure changes of these gases will generate strong noise at the exhaust port. During the regeneration and exhaust process, the problem of excessive noise is often accompanied, which will not only interfere with the surrounding environment and affect people's normal life and work, but also may have a negative impact on the stable operation of the equipment, such as interfering with the normal monitoring and control of the equipment. By adopting the above technical solution, including a frame, two adsorption towers are installed on the frame, the air inlet pipe and the air outlet pipe are connected to the adsorption tower, the regeneration mechanism is installed between the two adsorption towers, the exhaust pipe is connected to the adsorption tower, the noise reduction mechanism is installed at the exhaust pipe outlet, and the noise reduction mechanism is composed of a noise reduction pipe body, a silencer and a silencer pipe; When the adsorption tower is regenerated, the regeneration mechanism will inject hot air or high-temperature dry air into the adsorption tower to evaporate the moisture adsorbed on the adsorbent. As the moisture evaporates, the mixture of water vapor and hot air or high-temperature dry air begins to be discharged from the exhaust pipe of the adsorption tower. The gas enters the noise reduction mechanism from the exhaust pipe, and first enters the silencer pipe of the silencer from the noise reduction pipe body. The silencer holes on the silencer pipe disperse the gas into finer airflows. The gas passing through these silencer holes will collide and rub more with the inner wall of the silencer and the area around the holes, consuming more energy and reducing noise. At the same time When the muffler is regenerated, some curved notches are cleverly designed on the muffler. These notches are connected to the noise reduction chamber. After the gas is dispersed from the muffler hole, part of the gas will enter the noise reduction chamber through these curved notches, changing the flow path of the gas, increasing its flow resistance and turbulence, and the gas will undergo multiple reflections and collisions. These processes will consume the energy of the gas, thereby further reducing the noise. Finally, after multiple treatments by the noise reduction mechanism, the gas is quietly discharged from the outlet of the muffler. The flow rate and pressure of the gas have been effectively controlled, and the noise has been significantly reduced, completing the entire regeneration exhaust process. Through the settings of noise reduction pipe body, silencer cylinder and silencer pipe, the gas flow path is changed, turbulence and flow resistance are increased, and gas energy is effectively consumed through multiple reflections and collisions, deep noise suppression is achieved, and the noise level is significantly reduced, so that operators can work in a quieter and more comfortable environment, reducing the health risks that may be caused by long-term exposure to high-noise environments. The gas flow management is also optimized, and the gas is effectively controlled and dispersed during the exhaust process, avoiding additional noise caused by excessive flow rate or excessive pressure, ensuring the smooth flow of gas in the noise reduction mechanism, improving the overall stability and reliability of the equipment, reducing equipment vibration and wear that may be caused by excessive noise, extending the service life of the equipment, and reducing maintenance costs.

[0008] Furthermore, a flow expansion slot is provided through the silencer, and the flow expansion slot is respectively connected to the noise reduction chamber and the silencer channel, and the flow expansion slot is arranged at the air inlet end of the silencer.

[0009] By adopting the above technical solution, the expansion slot is opened throughout the silencer; through the setting of the expansion slot, the airflow guiding effect is enhanced, so that the airflow entering the silencer is more smoothly distributed to each curved slot, which helps to further reduce the noise generated when the airflow passes through. At the same time, when running for a long time or processing a large amount of airflow, the expansion slot helps to prevent the airflow from being blocked in the silencer, thereby ensuring the efficient operation of the equipment.

[0010] Furthermore, the air inlet end of the silencer is provided with a plurality of microholes for diverting the air flow, and the plurality of microholes are arranged in a circular array at the air inlet end of the silencer, and the inner wall of any of the microholes is connected to the interior of the expansion slot.

[0011] By adopting the above technical solution, a number of microholes are opened through the air inlet end of the silencer; through the setting of the microholes, the airflow entering the expansion slot can be further dispersed and distributed more evenly in the entire silencer, which helps to reduce the local accumulation and eddy flow of the airflow in the silencer, thereby improving the silencing effect, and at the same time can prevent the occurrence of backflow to a certain extent (the airflow inside the silencer may have backflow due to pressure difference or speed difference), ensuring that the airflow can smoothly pass through the silencer and be discharged.

[0012] Furthermore, a plurality of guide lines are provided in the noise reduction chamber, and the plurality of guide lines are arranged in sequence along the exhaust direction of the silencer.

[0013] By adopting the above technical solution, a number of guide strips are arranged in sequence in the noise reduction chamber; through the setting of a number of guide strips, the airflow entering the noise reduction chamber is guided to flow along a specific path, thereby optimizing the airflow distribution in the noise reduction chamber, reducing the noise generated by disordered airflow, and further improving the noise reduction effect.

[0014] Furthermore, the cross section of any of the curved notches is curved toward the exhaust direction of the muffler.

[0015] By adopting the above technical solution, the cross-section of the curved slot is curved toward the exhaust direction of the muffler; by setting the cross-section of the curved slot, the airflow is more likely to collide and reflect with the inner wall of the slot when passing through the slot, and these collision and reflection processes will further consume the energy of the airflow, helping to reduce the noise level.

[0016] Furthermore, an expanded diameter exhaust cylinder is provided at the air outlet end of the muffler, the muffler pipe is connected to the inside of the expanded diameter exhaust cylinder, and a plurality of expanded diameter through holes are penetrated through the expanded diameter exhaust cylinder.

[0017] By adopting the above technical solution, an expanded diameter exhaust pipe is installed at the end of the muffler, and a number of expanded diameter through holes are opened through the expanded diameter exhaust pipe; through the arrangement of the expanded diameter exhaust pipe and the expanded diameter through holes, the diameter of the expanded diameter exhaust pipe is larger than the diameter of the muffler, which enables the airflow flowing out of the muffler to be diffused when entering the expanded diameter exhaust pipe, reducing the speed and pressure of the airflow, helping to further reduce the noise generated by the airflow, and reducing the impact of the airflow on subsequent pipelines. At the same time, the porous design on the expanded diameter exhaust pipe can increase the discharge area of ​​the airflow, so that the airflow can be discharged more smoothly, thereby improving the exhaust efficiency.

[0018] Furthermore, an expansion access groove for an expansion exhaust pipe is provided at the air outlet end of the silencer, and the expansion access groove is connected to the interior of the silencer channel.

[0019] By adopting the above technical solution, the expanded diameter access groove is opened at the air outlet end of the muffler; through the setting of the expanded diameter access groove, the access of the expanded diameter exhaust pipe is facilitated, so that during the installation or maintenance process, the staff can complete the access work of the expanded diameter exhaust pipe more quickly and conveniently, thereby improving the maintenance efficiency, simplifying the installation process, and ensuring the tight connection between the expanded diameter exhaust pipe and the muffler.

[0020] Furthermore, an air outlet cover is provided at the air outlet end of the noise reduction tube body, and the air outlet cover covers the opening of the noise reduction tube body. An air outlet is provided through the center of the air outlet cover.

[0021] By adopting the above technical solution, the air outlet cover is installed at the air outlet end of the noise reduction pipe body, and the air outlet is opened on the air outlet cover; through the arrangement of the air outlet cover and the air outlet, the air outlet cover blocks the opening of the noise reduction pipe body to form a key node for controlling the airflow, and by precisely designing the size and shape of the air outlet, precise control and guidance of the exhaust airflow can be achieved, ensuring that the airflow can be discharged at a predetermined speed, thereby reducing the noise caused by airflow turbulence.

[0022] Furthermore, an annular flange is provided on the end wall of the air outlet cover plate, and an annular groove adapted to match the annular flange is provided at the end of the noise reduction pipe body.

[0023] By adopting the above technical solution, the annular flange is integrally formed on the air outlet cover plate, and the annular groove is opened on the noise reduction pipe body; through the setting of the annular flange and the annular groove, the cooperation of the annular flange and the annular groove provides a stable connection interface between the air outlet cover plate and the noise reduction pipe body, which not only increases the contact area of ​​the connection, but also improves the stability and reliability of the connection through the mutual engagement of the concave and convex structures.

[0024] Furthermore, a threaded notch is provided at the air inlet end of the noise reduction tube body, and a threaded portion for cooperating with the threaded notch of the noise reduction tube body is provided on the exhaust pipe.

[0025] By adopting the above technical solution, a threaded groove is opened on the noise reduction pipe body, and a threaded portion is formed on the exhaust pipe; through the setting of the threaded groove and the threaded portion, the cooperation between the threaded groove and the threaded portion simplifies the installation process, and the staff only needs to screw the threaded portion of the exhaust pipe into the threaded groove of the noise reduction pipe body to achieve the connection between the two, thereby improving work efficiency, reducing the error rate during the installation process, and ensuring a tight connection between the noise reduction pipe body and the exhaust pipe.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: By setting up noise reduction pipe bodies, silencers and silencer pipes, the gas flow path is changed, the turbulence and flow resistance are increased, and the gas energy is effectively consumed through multiple reflections and collisions, so as to achieve deep noise suppression and significantly reduce the noise level, so that operators can work in a quieter and more comfortable environment, reducing the health risks that may be caused by long-term exposure to high-noise environments. The gas flow management is also optimized, and the gas is effectively controlled and dispersed during the discharge process, avoiding additional noise caused by excessive flow rate or excessive pressure, ensuring the smooth flow of gas in the noise reduction mechanism, improving the overall stability and reliability of the equipment, reducing equipment vibration and wear that may be caused by excessive noise, extending the service life of the equipment, and reducing maintenance costs; The expansion slots are provided to enhance the airflow guidance function, so that the airflow entering the silencer is more smoothly distributed to each curved slot, which helps to further reduce the noise generated when the airflow passes through. At the same time, when the equipment is running for a long time or handling a large amount of airflow, the expansion slots help prevent the airflow from being blocked in the silencer, thus ensuring the efficient operation of the equipment. Through the setting of micropores, the airflow entering the expansion slot can be further dispersed and distributed more evenly throughout the silencer, which helps to reduce the local accumulation and eddy flow of the airflow in the silencer, thereby improving the silencing effect. At the same time, it can prevent the occurrence of backflow to a certain extent (the airflow inside the silencer may have backflow due to pressure difference or speed difference), ensuring that the airflow can smoothly pass through the silencer and be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of a noise reduction adsorption dryer in an embodiment of the present application.

[0028] Figure 2 It is a side view of a noise reduction adsorption dryer in an embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view used to illustrate the structure of the noise reduction mechanism in the embodiment of the present application.

[0030] Figure 4 It is a structural schematic diagram used to illustrate the connection relationship between the silencer cylinder and the silencer pipe in the embodiment of the present application.

[0031] Figure 5 yes Figure 3 Enlarged view of part A in .

[0032] Figure 6 yes Figure 3 Enlarged view of part B in FIG.

[0033] Explanation of the reference numerals: 1. frame; 2. adsorption tower; 21. air inlet pipe; 22. air outlet pipe; 3. regeneration mechanism; 4. exhaust pipe; 5. noise reduction mechanism; 51. noise reduction pipe body; 52. silencer; 53. silencer pipe; 6. noise reduction chamber; 7. silencer channel; 8. curved notch; 9. silencer hole; 10. expansion notch; 11. micropore; 12. guide line; 13. expanded exhaust pipe; 14. expanded through hole; 15. expanded access groove; 16. air outlet cover plate; 17. air outlet; 18. annular flange; 19. annular groove; 20. threaded notch; 23. threaded portion. DETAILED DESCRIPTION

[0034] In order to elaborate on the technical scheme adopted by the present invention to achieve the predetermined technical purpose, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only partial embodiments of the present invention, rather than all embodiments, and the technical means or technical features in the embodiments of the present invention can be replaced without paying creative work. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0035] The following is combined with Figure 1-6 This application is described in further detail.

[0036] The present application discloses a noise reduction adsorption dryer. Figure 1 and Figure 2 The noise reduction adsorption dryer comprises a frame 1, on which two adsorption towers 2 are mounted. In this embodiment, the adsorption towers 2 are filled with adsorbents, and each adsorption tower 2 is connected to an air inlet pipe 21 and an air outlet pipe 22. The air inlet pipe 21 is used to introduce humid air, and the air outlet pipe 22 is used to discharge the dried air.

[0037] Reference Figure 1 and Figure 2 A regeneration mechanism 3 is installed between the two adsorption towers 2. In this embodiment, the regeneration mechanism 3 is used to regenerate the saturated adsorbent in the adsorption tower 2. The regeneration mechanism 3 can be equipped with a corresponding heat source. Hot air or high-temperature dry air (the source of dry air can be part of the dry air after adsorption treatment in the adsorption tower 2 on the same side) is introduced into the adsorption tower 2 to evaporate the moisture in the adsorbent. At the same time, any adsorption tower 2 is connected to an exhaust pipe 4, which is used to discharge the gas.

[0038] Reference Figure 2 and Figure 3 A noise reduction mechanism 5 is installed at the outlet of the exhaust pipe 4. In this embodiment, the noise reduction mechanism 5 is used to achieve noise reduction processing of the gas. The noise reduction mechanism 5 includes a noise reduction tube body 51, a silencer 52 and a silencer tube 53. The noise reduction tube body 51, the silencer 52 and the silencer tube 53 are all hollow structures; the noise reduction tube body 51 is installed at the outlet of the exhaust pipe 4, and a threaded portion 23 is integrally formed on the exhaust pipe 4. A threaded groove 20 is provided at the air inlet end of the noise reduction tube body 51, and the threaded portion 23 is adapted to the threaded groove 20, which simplifies the installation process. The staff only needs to screw the threaded portion 23 of the exhaust pipe 4 into the threaded groove 20 of the noise reduction tube body 51 to achieve the connection between the two, thereby improving work efficiency, reducing the error rate during installation, and ensuring a tight connection between the noise reduction tube body 51 and the exhaust pipe 4.

[0039] Reference Figure 3 and Figure 5 The silencer 52 is installed in the noise reduction tube body 51. The silencer 52 is arranged along the length direction of the noise reduction tube body 51. In this embodiment, a noise reduction chamber 6 is formed inside the silencer 52 and the noise reduction tube body 51. The inner diameter of the noise reduction tube body 51 is larger than the outer diameter of the silencer 52. An annular portion for cooperating with the silencer 52 is formed inside the noise reduction tube body 51. The annular portions are respectively located at both ends of the silencer 52, thereby forming a noise reduction chamber 6 between the silencer 52 and the noise reduction tube body 51.

[0040] Reference Figure 3 and Figure 5A plurality of guide lines 12 are integrally formed in the noise reduction chamber 6, and the plurality of guide lines 12 are distributed in a spiral shape, and the plurality of guide lines 12 are arranged in sequence along the length direction of the silencer 52; the guide lines 12 guide the airflow entering the noise reduction chamber 6 so that it flows along a specific path, optimizes the airflow distribution in the noise reduction chamber 6, reduces the noise generated by the disordered airflow, and further improves the noise reduction effect.

[0041] Reference Figure 3 and Figure 4 A silencer channel 7 is provided inside the silencer cylinder 52, and the silencer channel 7 is provided along the length direction of the silencer cylinder 52. The silencer pipe 53 is installed in the silencer channel 7. A plurality of silencer holes 9 are provided through the silencer pipe 53, and the plurality of silencer holes 9 are provided in sequence along the length direction of the silencer pipe 53. Meanwhile, a plurality of curved slots 8 are provided through the silencer cylinder 52, and the plurality of curved slots 8 are provided in sequence along the length direction of the silencer cylinder 52. The curved slots 8 are respectively connected with the noise reduction chamber 6 and the silencer channel 7, and the curved slots 8 enable the noise reduction chamber 6 and the silencer channel 7 to be connected with each other.

[0042] Reference Figure 3 and Figure 4 In this embodiment, the cross-sections of the curved slots 8 are curved toward the exhaust direction of the muffler 52, so that the airflow is more likely to collide and reflect with the inner wall of the slot when passing through the slot. These collision and reflection processes will further consume the energy of the airflow and help reduce the noise level.

[0043] Reference Figure 4 The muffler 52 is also provided with a flow expansion slot 10, which is also connected to the noise reduction chamber 6 and the muffler channel 7. In this embodiment, the flow expansion slot 10 is located at the air inlet end of the muffler 52, and the inner diameter of the flow expansion slot 10 is larger than the inner diameter of the curved slot 8; it can enhance the airflow guiding effect, so that the airflow entering the muffler 52 is more smoothly distributed to each curved slot 8, which helps to further reduce the noise generated when the airflow passes through. At the same time, when running for a long time or processing a large amount of airflow, the flow expansion slot 10 helps to prevent the airflow from being blocked in the muffler 52, thereby ensuring the efficient operation of the equipment.

[0044] Reference Figure 4 A plurality of micropores 11 are provided at the air inlet end of the silencer 52, and the plurality of micropores 11 are arranged in a circumferential array at the air inlet end of the silencer 52. The inner wall of any micropore 11 is connected to the inside of the expansion slot 10, which can further disperse the airflow entering the expansion slot 10 and make it more evenly distributed in the entire silencer 52, thereby helping to reduce the local accumulation and eddy flow of the airflow in the silencer 52, thereby improving the silencing effect, and at the same time preventing the occurrence of backflow to a certain extent (the airflow inside the silencer 52 may have a backflow phenomenon due to a pressure difference or a speed difference), ensuring that the airflow can smoothly pass through the silencer 52 and be discharged.

[0045] Reference Figure 4 The exhaust end of the muffler 52 is equipped with an expanded diameter exhaust tube 13, and the interior of the expanded diameter exhaust tube 13 is a hollow structure. The inner diameter of the expanded diameter exhaust tube 13 is larger than the inner diameter of the muffler 53. The muffler 53 is connected to the expanded diameter exhaust tube 13. A plurality of expanded diameter through holes 14 are opened through the expanded diameter exhaust tube 13, and the plurality of expanded diameter through holes 14 are opened in sequence along the length direction of the expanded diameter exhaust tube 13; so that the airflow flowing out of the muffler 52 can be diffused when entering the expanded diameter exhaust tube 13, reducing the speed and pressure of the airflow, helping to further reduce the noise generated by the airflow, and reducing the impact of the airflow on the subsequent pipelines. At the same time, the porous design on the expanded diameter exhaust tube 13 can increase the discharge area of ​​the airflow, so that the airflow can be discharged more smoothly, thereby improving the exhaust efficiency.

[0046] Reference Figure 4 and Figure 5 At the same time, an expanded diameter access groove 15 is opened at the air outlet end of the silencer 52, and the expanded diameter access groove 15 is connected to the inside of the silencer channel 7, and the silencer pipe 53 extends into the expanded diameter access groove 15 to realize the docking of the silencer roller and the expanded diameter exhaust pipe 13; it is convenient to access the expanded diameter exhaust pipe 13, so that during the installation or maintenance process, the staff can complete the access work of the expanded diameter exhaust pipe 13 more quickly and conveniently, improve the maintenance efficiency, simplify the installation process, and ensure the tight connection between the expanded diameter exhaust pipe 13 and the silencer 52.

[0047] Reference Figure 6 An air outlet cover 16 is installed at the air outlet end of the noise reduction tube body 51, and the air outlet cover 16 blocks the opening of the noise reduction tube body 51. An air outlet 17 is opened through the center of the air outlet cover 16; the air outlet cover 16 blocks the opening of the noise reduction tube body 51, forming a key node for controlling the airflow. By accurately designing the size and shape of the air outlet 17, accurate control and guidance of the exhaust airflow can be achieved, ensuring that the airflow can be discharged at a predetermined speed, reducing the noise caused by airflow turbulence.

[0048] Reference Figure 6 An annular flange 18 is integrally formed on the end of the air outlet cover plate 16, and an annular groove 19 is opened at the end of the noise reduction pipe body 51. The annular flange 18 is adapted to the inner wall of the annular groove 19. The cooperation between the annular flange 18 and the annular groove 19 provides a stable connection interface between the air outlet cover plate 16 and the noise reduction pipe body 51, which not only increases the contact area of ​​the connection, but also improves the stability and reliability of the connection through the mutual engagement of the concave and convex structures.

[0049] The implementation principle of a noise reduction adsorption dryer in the embodiment of the present application is as follows: when the adsorption tower 2 is regenerated, the regeneration mechanism 3 injects hot air or high-temperature dry air into the adsorption tower 2 to evaporate the moisture adsorbed on the adsorbent. As the moisture evaporates, a mixture of water vapor and hot air or high-temperature dry air begins to be discharged from the exhaust pipe 4 of the adsorption tower 2. The gas enters the noise reduction mechanism 5 from the exhaust pipe 4, and first enters the silencer pipe 53 of the silencer cylinder 52 from the noise reduction pipe body 51. The silencer holes 9 on the silencer pipe 53 disperse the gas into finer airflows. The gas passing through these silencer holes 9 will have more collisions and frictions with the inner wall of the silencer cylinder 52 and the area around the holes, thereby eliminating the noise. More energy is consumed and noise is reduced. At the same time, some curved notches 8 are cleverly designed on the silencer 52. These notches are connected to the noise reduction chamber 6. After the gas is dispersed from the silencer hole 9, part of the gas will enter the noise reduction chamber 6 through these curved notches 8, changing the flow path of the gas, increasing its flow resistance and turbulence, and the gas will be reflected and collided many times. These processes will consume the energy of the gas, thereby further reducing the noise. Finally, after multiple treatments by the noise reduction mechanism 5, the gas is quietly discharged from the outlet of the silencer pipe 53. The flow rate and pressure of the gas have been effectively controlled, and the noise has been significantly reduced, completing the entire regeneration exhaust process; By configuring the noise reduction pipe body 51, the silencer cylinder 52 and the silencer pipe 53, the gas flow path is changed, the turbulence and flow resistance are increased, and the gas energy is effectively consumed through multiple reflections and collisions, so as to achieve deep noise suppression and significantly reduce the noise level, so that operators can work in a quieter and more comfortable environment, reduce the health risks that may be caused by long-term exposure to a high-noise environment, and optimize the gas flow management. The gas is effectively controlled and dispersed during the discharge process, avoiding additional noise caused by excessive flow rate or excessive pressure, ensuring the smooth flow of gas in the noise reduction mechanism 5, improving the overall stability and reliability of the equipment, reducing equipment vibration and wear that may be caused by excessive noise, extending the service life of the equipment, and reducing maintenance costs.

[0050] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A noise reduction adsorption dryer, comprising a frame (1), two adsorption towers (2) are arranged on the frame (1), both of the adsorption towers (2) are provided with an air inlet pipe (21) and an air outlet pipe (22), a regeneration mechanism (3) for regeneration is arranged between the two adsorption towers (2), characterized in that: Each of the adsorption towers (2) is provided with an exhaust pipe (4), and a noise reduction mechanism (5) for reducing noise is provided at the outlet of the exhaust pipe (4), and the noise reduction mechanism (5) comprises a noise reduction pipe body (51), a silencer (52) and a silencer pipe (53), the noise reduction pipe body (51) is connected to the outlet of the exhaust pipe (4), the interior of the noise reduction pipe body (51) is a hollow structure, the silencer (52) is arranged in the noise reduction pipe body (51), and the silencer (52) and the interior of the noise reduction pipe body (51) form a A noise reduction chamber (6) is provided, a noise reduction channel (7) is provided inside the noise reduction tube (52), a plurality of curved slots (8) are provided through the noise reduction tube (52), the plurality of curved slots (8) are connected to the noise reduction chamber (6), the noise reduction channel (7) is provided along the length direction of the noise reduction tube (52), the noise reduction channel (7) is connected to the plurality of curved slots (8), the noise reduction pipe (53) is arranged in the noise reduction channel (7), and a plurality of noise reduction holes (9) are provided through the noise reduction pipe (53).

2. A noise reduction adsorption dryer according to claim 1, characterized in that: The silencer (52) is provided with a flow expansion slot (10) extending therethrough, the flow expansion slot (10) being respectively connected to the noise reduction chamber (6) and the silencer channel (7), and the flow expansion slot (10) being arranged at the air inlet end of the silencer (52).

3. A noise reduction adsorption dryer according to claim 2, characterized in that: The air inlet end of the silencer (52) is provided with a plurality of micro-holes (11) for diverting the air flow. The plurality of micro-holes (11) are arranged in a circular array at the air inlet end of the silencer (52). The inner wall of any of the micro-holes (11) is connected to the interior of the expansion slot (10).

4. A noise reduction adsorption dryer according to claim 2, characterized in that: A plurality of guide lines (12) are arranged in the noise reduction chamber (6), and the plurality of guide lines (12) are arranged in sequence along the exhaust direction of the silencer (52).

5. The noise reduction adsorption dryer according to claim 1, characterized in that: The cross section of any of the curved notches (8) is arranged to be curved toward the exhaust direction of the silencer (52).

6. The noise reduction adsorption dryer according to claim 1, characterized in that: An expanded diameter exhaust pipe (13) is provided at the air outlet end of the silencer (52), the silencer pipe (53) is connected to the inside of the expanded diameter exhaust pipe (13), and a plurality of expanded diameter through holes (14) are penetrated through the expanded diameter exhaust pipe (13).

7. A noise reduction adsorption dryer according to claim 6, characterized in that: The outlet end of the silencer (52) is provided with an expanded diameter access groove (15) for the expanded diameter exhaust pipe (13), and the expanded diameter access groove (15) is connected to the inside of the silencer channel (7).

8. The noise reduction adsorption dryer according to claim 1, characterized in that: The air outlet end of the noise reduction tube body (51) is provided with an air outlet cover plate (16), the air outlet cover plate (16) covers the opening of the noise reduction tube body (51), and an air outlet (17) is provided through the center of the air outlet cover plate (16).

9. A noise reduction adsorption dryer according to claim 8, characterized in that: An annular flange (18) is provided on the end wall of the air outlet cover plate (16), and an annular groove (19) adapted to match the annular flange (18) is provided at the end of the noise reduction pipe body (51).

10. The noise reduction adsorption dryer according to claim 8, characterized in that: The air inlet end of the noise reduction pipe body (51) is provided with a threaded notch (20), and the exhaust pipe (4) is provided with a threaded portion (23) for matching with the threaded notch (20) of the noise reduction pipe body (51).

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