Noise elimination and muting pipeline of air conditioning system

Abstract

The utility model provides a silencing and muting pipeline of an air conditioning system, and belongs to the technical field of silencing and muting of the air conditioning system, the silencing and muting pipeline of the air conditioning system comprises a pipeline body, a silencer, a sound insulation plate and a vibration absorber, the pipeline body is connected with an air outlet of an air conditioner, the pipeline body comprises an inlet and an outlet, the silencer is arranged at an inlet of the pipeline body, and the silencer is used for conducting silencing treatment on air entering the pipeline body; the sound insulation plate is fixed to the outer portion of the pipeline body and used for wrapping the pipeline body to insulate noise. The vibration absorber is arranged at an outlet of the pipeline body, and the vibration absorber is used for absorbing vibration generated by the change of the internal air volume of the pipeline body; the utility model provides a silencing and silence pipeline of an air conditioning system, which can solve the problems that sound absorption materials in the existing pipeline can increase the resistance of air flow, and dust or dirt can be accumulated along with time to influence the sound absorption effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of silencing and muteness of air-conditioning systems, and in particular relates to a silencing and muteness pipe of an air-conditioning system. Background Art

[0002] The principles of anechoic and silent pipes mainly include acoustic absorption, acoustic reflection and acoustic isolation: Acoustic absorption: The interior of the anechoic and silent pipes uses sound-absorbing materials, such as glass fiber, foam plastics, etc. These materials can convert sound energy into heat energy, thereby reducing noise transmission. The selection and layout of sound-absorbing materials affect the sound absorption performance of the pipes, and are usually designed and optimized according to the noise spectrum of the air-conditioning system. Acoustic reflection: The external structural design of the anechoic and silent pipes can reflect part of the noise and prevent it from spreading to the indoor space. Structures such as reflective panels, partitions and insulation layers can effectively reflect noise back to the inside of the pipes and reduce noise leakage. Acoustic isolation: The installation location and layout of the anechoic and silent pipes can achieve noise isolation and reduce its spread to the indoor space. By reasonably designing the path and connection method of the pipes, the path of noise propagation can be minimized and the sound insulation performance of the pipes can be improved.

[0003] The anechoic and silent duct is designed to reduce the noise generated when the air-conditioning system is in operation. Its main functions include: the use of sound-absorbing materials such as glass fiber, foam plastic, etc. inside can absorb the sound energy generated by air flow and reduce noise propagation; the structural design of the outside of the duct can effectively reduce the vibration propagation when the air-conditioning system is in operation, thereby reducing the noise level; the design of the anechoic and silent duct can block the noise generated by the air-conditioning system from propagating into the indoor space, keeping the indoor environment quiet.

[0004] The sound-absorbing material inside the existing sound-absorbing duct will increase the resistance to air flow and accumulate dust or dirt over time, affecting its sound absorption effect. Utility Model Content

[0005] In view of this, the utility model provides a sound-absorbing and silent duct for an air-conditioning system, which can solve the problem that the sound-absorbing material inside the existing air-conditioning duct increases the resistance to air flow and accumulates dust or dirt over time, affecting its sound-absorbing effect.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a sound-absorbing and silent duct for an air-conditioning system, which comprises a duct body, a silencer, a sound insulation board and a vibration absorber. The duct body is connected to an air outlet of an air conditioner, and the duct body comprises an inlet and an outlet. The silencer is arranged at the inlet of the duct body, and the silencer is used for performing sound absorption treatment on the air volume entering the duct body; the sound insulation board is fixed to the outside of the duct body, and is used for covering the duct body to isolate noise; the vibration absorber is arranged at the outlet of the duct body, and the vibration absorber is used for absorbing vibration of the duct body caused by changes in the internal air volume.

[0008] The technical effects of the noise-absorbing and silent pipe of the air-conditioning system provided by the utility model are as follows: Pipe body: As one of the key components in the air-conditioning system, its main function is to connect the air outlet of the air-conditioning system and transmit the air volume in the air-conditioning system. Through the pipe body, the air-conditioning system can effectively transport hot and cold air to the designated area to achieve the normal operation of the air-conditioning system.

[0009] Muffler: Located at the entrance of the duct body, the muffler not only reduces the noise generated when the air volume enters the duct, but more importantly, it silences the air flow, reduces the operating noise of the air conditioning system, and improves indoor comfort and quietness.

[0010] Sound insulation board: The sound insulation board is located outside the pipe body. Its function is to cover the pipe body to isolate the noise and effectively prevent the noise inside the pipe body from spreading to the surrounding environment. The use of sound insulation board can effectively reduce the operating noise of the air conditioning system, improve the indoor quiet effect, and create a quieter and more comfortable environment.

[0011] Vibration absorber: Located at the outlet of the duct body, the main function of the vibration absorber is to absorb the vibration of the duct body caused by the change of internal air volume. By reducing the vibration of the duct body, the vibration absorber can effectively reduce the degree of vibration transmission to the surrounding environment, improve the stability and comfort of the air conditioning system, and reduce interference with the surrounding environment.

[0012] On the basis of the above technical solution, the silencing pipe of an air conditioning system of the utility model can also be improved as follows:

[0013] Wherein, the muffler includes a muffler chamber and a muffler sheet, the muffler chamber is connected to the inlet of the pipe body; the muffler chamber is a hollow structure, and a plurality of muffler sheets are fixed inside, and the muffler sheets are used for muffler.

[0014] Furthermore, the muffler sheet is a corrugated structure for refracting and reflecting the sound entering the muffler chamber.

[0015] Furthermore, the muffler sheets are fixed on the inner wall of the muffler chamber in an alternating manner, and the width thereof is 1 / 3 of the width of the muffler chamber and the muffler sheets at the same level.

[0016] Furthermore, the sound-absorbing sheet is made of a metal material with sound-absorbing properties.

[0017] Metal materials with sound-absorbing properties include:

[0018] Aluminum: Aluminum material can have certain sound absorption performance at a certain thickness and is suitable for some light-load sound insulation occasions.

[0019] Steel: Through special treatment or structural design, steel can also have certain sound absorption properties, suitable for occasions requiring higher strength and sound insulation performance.

[0020] Copper: Copper material also has certain sound absorption performance at a certain thickness and is usually used in some special occasions with higher material requirements.

[0021] Iron: Similar to steel, iron materials can also be used in certain situations for applications with certain sound absorption properties.

[0022] Alloy: Certain special alloys can have better sound absorption performance through appropriate manufacturing processes and are often used in high-end audio equipment or professional audio occasions.

[0023] Furthermore, the pipe body is a circular pipe, and the sound insulation board is a circular structure, which is covered on the outside of the pipe body; the inner diameter of the sound insulation board is the same as the outer diameter of the pipe body; the outer wall of the pipe body is provided with a pleated structure, and the structure of the inner wall of the sound insulation board matches the structure of the outer wall of the pipe body.

[0024] Furthermore, the sound insulation board is a foam material with sound insulation performance, and a layer of fiber material with sound absorption performance is fixed on the inner wall of the sound insulation board.

[0025] Foam materials with sound insulation properties include:

[0026] Polyurethane foam: Polyurethane foam has good sound insulation performance because its fine pore structure can effectively absorb sound vibrations. It is often used as sound insulation material in the fields of automobiles, construction, furniture, etc.

[0027] Polystyrene foam (EPS): Polystyrene foam is light, soft and sound-absorbing, and is often used in building sound insulation materials, packaging materials and other fields.

[0028] Polyvinyl chloride foam (PVC): Polyvinyl chloride foam is widely used as sound insulation material in construction, automobiles, electronic equipment and other fields because of its softness and sound absorption properties.

[0029] Rubber foam: Rubber foam has good sound insulation performance and durability, and is often used as sound insulation material in industrial equipment, machinery, automobiles and other fields.

[0030] Cross-linked polyethylene foam: Cross-linked polyethylene foam is widely used as sound insulation material in construction, transportation, electronic products and other fields due to its high density, wear resistance and good temperature resistance.

[0031] Fiber materials with sound-absorbing properties mainly include:

[0032] Glass fiber: Glass fiber has good sound insulation and sound absorption properties and is often used in building sound insulation materials, automotive sound insulation pads and other fields.

[0033] Rock wool: Rock wool is a fiber material made from rock. It has excellent sound absorption properties and is often used in building sound insulation, industrial equipment noise reduction and other fields.

[0034] Mineral wool: Mineral wool is a fiber material made from ore. It also has good sound absorption properties and is often used in building sound insulation, industrial equipment sound insulation, etc.

[0035] Polyester fiber: Polyester fiber materials can also have certain sound-absorbing properties after special treatment, and are often used as sound insulation materials in furniture, car interiors and other fields.

[0036] Sound-absorbing felt: Sound-absorbing felt is a soft material made of fiber material with good sound-absorbing performance. It is often used in audio equipment, recording studios and other places.

[0037] Furthermore, the vibration absorber is a damping absorber for absorbing the vibration generated by the pipeline body; the vibration absorber is sealed and connected to the outlet of the pipeline body.

[0038] Furthermore, the wall thickness of the pipe body is uniform to ensure stable transmission of air volume.

[0039] Furthermore, the vibration absorber is made of rubber.

[0040] Compared with the prior art, the beneficial effects of the silencing and silent pipe of an air conditioning system provided by the utility model are:

[0041] Pipeline: As one of the key components in the air conditioning system, its main function is to connect the air outlet of the air conditioner and transfer the air volume in the air conditioning system. Through the pipe body, the air conditioner can effectively transport hot and cold air to the designated area to achieve the normal operation of the air conditioning system.

[0042] Muffler: Located at the entrance of the pipe body, the function of the muffler is not only to reduce the noise generated when the air volume enters the pipe, but more importantly, it can muffle the air flow through its internal muffler chamber and muffler sheet structure, thereby reducing the operating noise of the air conditioning system and improving the comfort and quietness of the room.

[0043] Sound insulation board: The sound insulation board is located outside the pipe body. Its function is to cover the pipe body to isolate the noise and effectively prevent the noise inside the pipe body from spreading to the surrounding environment. The use of sound insulation board can effectively reduce the operating noise of the air conditioning system, improve the indoor quiet effect, and create a quieter and more comfortable environment.

[0044] Vibration absorber: Located at the outlet of the duct body, the main function of the vibration absorber is to absorb the vibration of the duct body caused by the change of internal air volume. By reducing the vibration of the duct body, the vibration absorber can effectively reduce the degree of vibration transmission to the surrounding environment, improve the stability and comfort of the air conditioning system, and reduce interference with the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0046] Figure 1 It is a structural schematic diagram of a noise-absorbing and silent pipe of an air-conditioning system;

[0047] Figure 2 is a schematic diagram of the cross-sectional structure of the pipeline body;

[0048] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0049] 10. Pipe body; 20. Muffler; 21. Muffler chamber; 22. Muffler sheet; 30. Sound insulation board; 40. Vibration absorber. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0051] like Figure 1-2As shown, it is a structural schematic diagram of a sound-absorbing and silent duct of an air-conditioning system provided by the utility model. In the figure, it includes a duct body 10, a muffler 20, a sound insulation board 30 and a vibration absorber 40. The duct body 10 is connected to the air outlet of the air conditioner. The duct body 10 includes an inlet and an outlet. The muffler 20 is arranged at the inlet of the duct body 10, and the muffler 20 is used for silencing the air volume entering the duct body 10; a sound insulation board 30 is fixed to the outside of the duct body 10, which is used to cover the duct body 10 to isolate noise; a vibration absorber 40 is arranged at the outlet of the duct body 10, and the vibration absorber 40 is used to absorb the vibration of the duct body 10 caused by the change of the internal air volume.

[0052] Among them, in the above technical solution, the muffler 20 includes a muffler chamber 21 and a muffler plate 22, the muffler chamber 21 is connected to the entrance of the pipe body 10; the muffler chamber 21 is a hollow structure, and a plurality of muffler plates 22 are fixed inside, and the muffler plates 22 are used for noise reduction.

[0053] Furthermore, in the above technical solution, the muffler sheet 22 is a corrugated structure, which is used to refract and reflect the sound entering the muffler chamber 21 .

[0054] Furthermore, in the above technical solution, the muffler sheets 22 are fixed on the inner wall of the muffler chamber 21 in an interlaced manner, and their width is 1 / 3 of the same horizontal width of the muffler chamber 21 and the muffler sheets 22 .

[0055] Furthermore, in the above technical solution, the sound-absorbing sheet 22 is made of a metal material with sound-absorbing properties.

[0056] Furthermore, in the above technical solution, the pipe body 10 is a circular pipe, and the sound insulation board 30 is a circular structure, which is covered on the outside of the pipe body 10; the inner diameter of the sound insulation board 30 is the same as the outer diameter of the pipe body 10; the outer wall of the pipe body 10 is provided with a pleated structure, and the structure of the inner wall of the sound insulation board 30 matches the structure of the outer wall of the pipe body 10.

[0057] Furthermore, in the above technical solution, the sound insulation board 30 is a foam material with sound insulation performance, and a layer of fiber material with sound absorption performance is fixed on the inner wall thereof.

[0058] Furthermore, in the above technical solution, the vibration absorber 40 is a damping absorber for absorbing the vibration generated by the pipeline body 10 ; the vibration absorber 40 is sealed and connected to the outlet of the pipeline body 10 .

[0059] Furthermore, in the above technical solution, the wall thickness of the duct body 10 is uniform, so as to ensure stable transmission of air volume.

[0060] Furthermore, in the above technical solution, the vibration absorber 40 is made of rubber.

[0061] Embodiment 1:

[0062] The muffler includes a hollow muffler chamber and a plurality of corrugated muffler sheets. The muffler chamber is connected to the inlet of the pipeline body, and the corrugated muffler sheets are fixed inside for muffler treatment.

[0063] The anechoic sheet adopts a corrugated structure, which can refract and reflect the sound entering the anechoic chamber, thereby enhancing the anechoic effect.

[0064] The silencer sheets are staggered and fixed on the inner wall of the silencer chamber, and the width thereof is 1 / 3 of the same horizontal width of the silencer chamber and the silencer sheets.

[0065] The sound-absorbing sheet is made of metal material with sound-absorbing properties to further improve the sound-absorbing effect.

[0066] Embodiment 2:

[0067] The sound insulation board adopts a circular structure, covering the outside of the pipe body, and its inner diameter is the same as the outer diameter of the pipe body.

[0068] The outer wall of the pipe body is provided with a pleated structure, which matches the inner wall structure of the sound insulation board to ensure a tight fit.

[0069] The sound insulation board is made of foam material with sound insulation performance, and a layer of fiber material with sound absorption performance is fixed on the inner wall to improve the sound insulation effect.

[0070] Embodiment three:

[0071] The vibration absorber adopts a damping absorber, which is sealed and connected to the outlet of the pipeline body to absorb the vibration generated by the pipeline body.

[0072] The vibration absorber is made of rubber and has a good vibration absorbing effect.

[0073] The wall thickness of the duct body is uniform, ensuring the stable transmission of air volume and further ensuring the stable operation of the system.

[0074] Specifically, the principle of the utility model is: the wind enters the inlet of the pipe body from the air outlet of the air conditioner, passes through the muffler and enters the pipe body, and is silenced by the vibration absorber after flowing to the outlet. The muffler is used to silence the air volume entering the pipe body, the sound insulation board covers the pipe body to isolate the noise, and the vibration absorber absorbs the vibration of the pipe body caused by the change of internal air volume. A hollow soundproof chamber is adopted and a plurality of corrugated soundproof sheets are fixed to enhance the soundproofing effect; the sound insulation board adopts a circular structure to cover the pipe body, and a fiber material with sound-absorbing performance is fixed on the inner wall to improve the sound insulation effect; the vibration absorber adopts a damping absorber, which is sealed and connected to the outlet of the pipe body to absorb the vibration generated by the pipe body and ensure the stable operation of the system.

Claims

1. A sound-absorbing and silent pipe for an air-conditioning system, characterized in that: The invention comprises a pipe body (10), a silencer (20), a sound insulation board (30) and a vibration absorber (40); the pipe body (10) is connected to an air outlet of an air conditioner; the pipe body (10) comprises an inlet and an outlet; the silencer (20) is arranged at the inlet of the pipe body (10); the silencer (20) is used for performing sound insulation treatment on the air volume entering the pipe body (10); the sound insulation board (30) is fixed to the outside of the pipe body (10) for covering the pipe body (10) to isolate noise; the vibration absorber (40) is arranged at the outlet of the pipe body (10); the vibration absorber (40) is used for absorbing vibration of the pipe body (10) caused by changes in the internal air volume.

2. The silencing pipe of an air conditioning system according to claim 1, characterized in that: The muffler (20) comprises a muffler chamber (21) and a muffler sheet (22); the muffler chamber (21) is connected to the entrance of the pipe body (10); the muffler chamber (21) is a hollow structure, and a plurality of muffler sheets (22) are fixed inside the muffler chamber; the muffler sheets (22) are used for muffler.

3. The silencing pipe of an air conditioning system according to claim 2, characterized in that: The muffler sheet (22) is a corrugated structure and is used to refract and reflect the sound entering the muffler chamber (21).

4. The silencing and silent pipe of an air conditioning system according to claim 3, characterized in that: The muffler sheets (22) are fixed on the inner wall of the muffler chamber (21) in an interlaced manner, and their width is 1 / 3 of the width of the muffler chamber (21) and the muffler sheets (22) at the same level.

5. The silencing and silent pipe of an air conditioning system according to claim 4, characterized in that: The sound-absorbing sheet (22) is made of a metal material with sound-absorbing properties.

6. The silencing and silent pipe of an air conditioning system according to claim 5, characterized in that: The pipe body (10) is a circular pipe, and the sound insulation board (30) is a circular structure, which is covered on the outside of the pipe body (10); the inner diameter of the sound insulation board (30) is the same as the outer diameter of the pipe body (10); the outer wall of the pipe body (10) is provided with a pleated structure, and the structure of the inner wall of the sound insulation board (30) matches the structure of the outer wall of the pipe body (10).

7. The silencing and silent pipe of an air conditioning system according to claim 6, characterized in that: The sound insulation board (30) is a foam material with sound insulation performance, and a layer of fiber material with sound absorption performance is fixed on the inner wall of the sound insulation board.

8. The silencing and silent pipe of an air conditioning system according to claim 7, characterized in that: The vibration absorber (40) is a damping absorber used to absorb the vibration generated by the pipeline body (10); the vibration absorber (40) is sealedly connected to the outlet of the pipeline body (10).

9. The silencing and silent pipe of an air conditioning system according to claim 8, characterized in that: The wall thickness of the pipe body (10) is uniform, so as to ensure stable transmission of air volume.

10. The silencing and silent pipe of an air conditioning system according to claim 9, characterized in that: The vibration absorber (40) is made of rubber.

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