Silent air distributor and ship ventilation system

Abstract

The utility model relates to a mute air distributor and a ship ventilation system. The air distributor comprises a shell, a fluid inlet and a fluid outlet are formed in the shell, a silencing plate is arranged in the shell and is a curved plate, a plurality of silencing holes are formed in the silencing plate, and the plate face of the silencing plate is perpendicular to the flowing-out direction of fluid in the shell. Compared with the prior art, the noise reduction device is used for being connected with a ship air conditioner to adjust and reduce noise of outlet air of the ship air conditioner; in the using process, the air distributor is communicated with an air outlet of a ship air conditioner through the fluid inlet and communicated with outside air through the fluid outlet, air conditioner air enters the air distributor, passes through the silencing plate and then flows out of the air distributor, the curved plate is arranged on the plate face of the air distributor, the silencing holes are formed in the curved plate, noise generated by airflow is absorbed by the curved plate, and the noise is reduced. The airflow noise is effectively reduced; meanwhile, the plate face of the air distributor faces the flowing-out direction of the fluid, all air flows out through the silencing plate, and the noise reduction efficiency of the air distributor is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a silent air distribution device and a ship ventilation system. Background Art

[0002] The air distribution unit is an air supply terminal device mainly used in public spaces and places where related personnel activities take place. Whether on land or on ships at sea, there will be some spaces where people live or move around. These spaces require a certain number of ventilation. The air treated by the air conditioner will be sent to many places, such as medical rooms, halls, restaurants, theaters, etc. The purpose and spatial structure of each space are different, and the characteristics and quality of the air are also different. The terminal air supply device, the air distribution unit, can control the flow rate, direction, and transmission distance of the air. Different types of air distribution units are installed in different spaces.

[0003] The air conditioner is an important device at the end of the ship's air conditioning and ventilation system. It plays a role in regulating the air environment of the ship's cabin, but it is also one of the main noise sources in the ship's cabin. These noises seriously affect the comfort and health of the crew. As the crew and passengers' requirements for the comfort of the living environment are further improved, the noise environment has become one of the criteria for evaluating ships. In actual operation, the ship's air conditioning system will generate noise from the engine room to the end. The main noise sources are fan noise, duct system noise and terminal noise. The noise generated in various places enters the terminal air conditioner along the duct, and is transmitted to the room through the air conditioner, which will eventually harm the health of the cabin personnel. Utility Model Content

[0004] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and provide a silent air distribution device and a ship ventilation system for reducing the noise in the ship air conditioning system.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A silent air distribution device comprises a shell, the shell is provided with a fluid inlet and a fluid outlet, a sound-absorbing plate is provided in the shell, the sound-absorbing plate is a curved plate, a plurality of sound-absorbing holes are provided on the sound-absorbing plate, and the plate surface of the sound-absorbing plate is arranged perpendicularly to the direction in which the fluid in the shell flows out.

[0007] In one of the embodiments, a plurality of sound-absorbing panels are disposed in the shell, and the plurality of sound-absorbing panels are arranged in parallel along the direction in which the fluid flows out.

[0008] In one of the embodiments, the distance between two adjacent silencer plates is 40 mm to 60 mm; the curved surface of the silencer plate is a circular curved surface, and the curvature of the silencer plate is 0.5 to 2.

[0009] In one embodiment, the length of the circular curved surface of the silencer plate is greater than or equal to one third of the circumference and less than or equal to one half of the circumference.

[0010] In one embodiment, the sound-absorbing plate comprises a first porous layer, a sound-absorbing material layer and a second porous layer which are arranged in sequence, and the first porous layer and the second porous layer are both provided with sound-absorbing holes which are perpendicular to the plate surface.

[0011] In one embodiment, the sound-absorbing material layer includes a sound-absorbing foam layer and a sound-absorbing cotton layer.

[0012] In one of the embodiments, an outlet pipe is provided on the shell, and an air dispersion plate is sleeved at the outlet of the outlet pipe.

[0013] In one of the embodiments, the outlet duct is provided with a wind shield, the wind shield is connected to the air dispersion plate via a connecting piece, and the wind shield is parallel to the air dispersion plate and has a gap therebetween.

[0014] In one of the embodiments, an inlet pipe is provided on the shell, and the inlet pipe and the outlet pipe are respectively arranged on two adjacent side surfaces of the shell, and impurity filters are provided in the inlet pipe and the outlet pipe.

[0015] A ship ventilation system comprises an air conditioner and the silent air cloth device, wherein the air outlet of the air conditioner is connected to the fluid inlet of the silent air cloth device.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The silent air cloth unit can be arranged in a ship and connected to the ship's air conditioner to adjust and reduce the noise of the air outlet of the ship's air conditioner. During use, the air cloth unit is connected to the air outlet of the ship's air conditioner through the fluid inlet and to the outside air through the fluid outlet. The air-conditioned air enters the air cloth unit and flows out of the air cloth unit through the silencer plate. Since the plate surface of the air cloth unit is a curved plate and is provided with silencer holes, the noise generated by the air flow is absorbed by the curved plate, which effectively reduces the air flow noise. At the same time, the plate surface of the air cloth unit faces the direction of fluid outflow, and all wind will flow out through the silencer plate, which is conducive to ensuring the noise reduction efficiency of the air cloth unit.

[0018] 2. A plurality of silencer plates are arranged in sequence facing the fluid outlet, so that the airflow passes through the plurality of silencer plates in sequence, and a higher sound reduction amount can be obtained with a shorter sound reduction channel length, thereby improving the overall noise reduction effect.

[0019] 3. When the distance between the silencer panels is controlled between 40mm and 60mm, and the curvature of the silencer panels is controlled between 0.5 and 2, the pressure loss of the airflow passing through the silencer panels can be controlled between 10Pa and 30Pa, thereby achieving the ideal noise reduction requirements.

[0020] 4. The first porous layer, the sound-absorbing material layer and the second porous layer are sequentially arranged on the sound-absorbing plate. When the airflow passes through the sound-absorbing plate, the noise is gradually reduced through the first porous layer, the sound-absorbing material layer and the second porous layer, which is beneficial to improving the noise reduction effect and noise reduction efficiency.

[0021] 5. The air distributor is equipped with an air diffuser and an air shield at the outlet. The airflow can only enter the air through the gap between the air diffuser and the air shield, which reduces the pressure loss of the airflow when it flows out of the pipe, realizes uniform and orderly outflow of the air distributor, and ensures the ventilation efficiency of the air distributor.

[0022] 6. Impurity filters are installed in the inlet and outlet pipes. The impurity filters in the inlet pipe can prevent the dust in the ship air conditioner from entering the room through the air blower. When the air blower is not working, the impurity filters in the outlet pipe can also prevent the dust in the room from entering the ship air conditioner through the air blower. This realizes two-way dust prevention and effectively protects the air conditioner and the air blower. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the air distributor in the utility model.

[0024] Figure 2 It is a schematic diagram of the structure of the sound-absorbing plate in the utility model.

[0025] Figure numerals: 100, air distributor; 10, shell; 11, fluid inlet; 12, fluid outlet; 13, inlet pipe; 14, outlet pipe; 15, flow valve; 20, silencer; 21, first porous layer; 22, silencer material layer; 23, second porous layer; 30, air dispersion plate; 31, connecting piece; 40, wind shield. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0027] The low-noise wind cabinet 100 for ships in the present invention will be described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, in one embodiment, a silent air distribution device 100 is provided. The air distribution device 100 includes a shell 10. The shell 10 is provided with a fluid inlet 11 and a fluid outlet 12. A sound-absorbing plate 20 is provided in the shell 10. The sound-absorbing plate 20 is a curved plate. A plurality of sound-absorbing holes are provided on the sound-absorbing plate 20. The plate surface of the sound-absorbing plate 20 is arranged perpendicular to the direction in which the fluid in the shell 10 flows out.

[0029] The silent air cabinet 100 can be arranged in a ship and used to be connected to the ship's air conditioner to adjust and reduce the noise of the air outlet of the ship's air conditioner. During use, the air cabinet 100 is connected to the air outlet of the ship's air conditioner through the fluid inlet 11 and is connected to the outside air through the fluid outlet 12. After the air-conditioned air enters the air cabinet 100, it passes through the silencer plate 20 and then flows out of the air cabinet 100. Since the board surface of the air cabinet 100 is a curved board and is provided with silencer holes, the noise generated by the airflow is absorbed by the curved board, which effectively reduces the airflow noise. At the same time, the board surface of the air cabinet 100 faces the direction of the fluid outflow, and all the wind will pass through the silencer plate 20 and then flow out, which is beneficial to ensure the noise reduction efficiency of the air cabinet 100.

[0030] Specifically, Figure 1 As shown, in one embodiment, a plurality of muffler plates 20 are provided in the housing 10, and the plurality of muffler plates 20 are arranged in parallel along the direction in which the fluid flows out. A plurality of muffler plates 20 are provided in the housing 10, and the plurality of muffler plates 20 are arranged in sequence facing the fluid outlet 12, so that the airflow passes through the plurality of muffler plates 20 in sequence, and a higher muffler volume can be obtained with a shorter muffler channel length, thereby improving the overall noise reduction effect.

[0031] Furthermore, the silencer plate 20 is arranged in the area between the fluid inlet 11 and the fluid outlet 12 , so as to ensure that the airflow flowing into the air cabinet 100 must pass through the silencer plate 20 before flowing out of the air cabinet 100 .

[0032] Furthermore, in one embodiment, the distance between two adjacent sound-absorbing plates 20 is 40 mm to 60 mm.

[0033] The curved surface of the muffler plate 20 is a circular curved surface, and the curvature of the muffler plate 20 is 0.5 to 2. When the distance between the muffler plates 20 is controlled between 40 mm and 60 mm, and the curvature of the muffler plate 20 is controlled between 0.5 and 2, the pressure loss of the airflow passing through the muffler plate 20 can be controlled between 10 Pa and 30 Pa, thereby achieving the ideal noise reduction requirement.

[0034] Furthermore, the length of the circular curved surface of the muffler plate 20 is greater than or equal to one third of the circumference and less than or equal to one half of the circumference.

[0035] Specifically, Figure 2 As shown, in one embodiment, the sound-absorbing plate 20 includes a first porous layer 21, a sound-absorbing material layer 22, and a second porous layer 23 arranged in sequence, and sound-absorbing holes perpendicular to the plate surface are provided on the first porous layer 21 and the second porous layer 23. The first porous layer 21, the sound-absorbing material layer 22, and the second porous layer 23 are arranged in sequence on the sound-absorbing plate 20. When the airflow passes through the sound-absorbing plate 20, the noise is gradually reduced through the first porous layer 21, the sound-absorbing material layer 22, and the second porous layer 23, which is conducive to improving the noise reduction effect and noise reduction efficiency.

[0036] In one embodiment, the sound-absorbing material layer 22 includes a sound-absorbing foam layer and a sound-absorbing cotton layer.

[0037] In this specific embodiment, the thickness of the sound-absorbing plate 20 is 30 mm to 50 mm, the thickness of the first porous layer 21 and the second porous layer 23 is 2 mm to 5 mm, and the thickness of the sound-absorbing material layer 22 is 10 mm to 40 mm.

[0038] Specifically, Figure 1 As shown, in one embodiment, an outlet pipe 14 is provided on the housing 10 , and an air dispersion plate 30 is sleeved at the outlet of the outlet pipe 14 .

[0039] Furthermore, in one embodiment, the outlet duct 14 is provided with a wind shield 40 , and the wind shield 40 is connected to the air dispersion plate 30 via a connecting piece 31 , and the wind shield 40 is parallel to the air dispersion plate 30 and a gap is provided therebetween.

[0040] Furthermore, the connecting member 31 may be a connecting structure such as a bolt or a screw. The wind shield 40 may be a disc-shaped or square-shaped one, as long as it is compatible with the wind dispersing plate 30, so as to fully shield the wind dispersing plate 30.

[0041] Among them, the shell 10 is provided with an inlet pipe 13, and the inlet pipe 13 and the outlet pipe 14 are respectively arranged on two adjacent side surfaces of the shell 10, and impurity filters are arranged in the inlet pipe 13 and the outlet pipe 14. The impurity filters are arranged in the inlet pipe 13 and the outlet pipe 14, which can prevent the dust in the ship air conditioner from entering the room through the air duct 100 through the impurity filter of the inlet pipe 13, and when the air duct 100 is not working, the impurity filter of the outlet pipe 14 can also prevent the indoor dust from entering the ship air conditioner through the air duct 100, thereby realizing two-way dust prevention and effectively protecting the air conditioner and the air duct 100.

[0042] In this specific embodiment, a flow valve 15 is provided in the outlet pipe 14 , and is located between the wind shield 40 and the air dispersion plate 30 , and is used to adjust the air output of the air distributor 100 .

[0043] A ship ventilation system includes an air conditioner and a silent air cloth 100, wherein the air outlet of the air conditioner is connected to the fluid inlet of the silent air cloth 100. The silent air cloth 100 can be arranged in a ship, and is used to connect with the ship air conditioner to adjust and reduce the noise of the air outlet of the ship air conditioner; during use, the air cloth 100 is connected to the air outlet of the ship air conditioner through the fluid inlet 11, and is connected to the outside air through the fluid outlet 12. After the air conditioning wind enters the air cloth 100, it passes through the muffler plate 20 and then flows out of the air cloth 100. Since the board surface of the air cloth 100 is a curved board and is provided with muffler holes, the noise generated by the air flow is absorbed by the curved board, which effectively reduces the air flow noise; at the same time, the board surface of the air cloth 100 faces the direction of fluid outflow, and all wind will pass through the muffler plate 20 and then flow out, which is conducive to ensuring the noise reduction efficiency of the air cloth 100.

[0044] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0049] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A silent air distribution device, characterized in that: The invention comprises a shell (10), wherein the shell (10) is provided with a fluid inlet (11) and a fluid outlet (12), wherein a sound-absorbing plate (20) is provided inside the shell (10), wherein the sound-absorbing plate (20) is a curved plate, wherein a plurality of sound-absorbing holes are provided on the sound-absorbing plate (20), and wherein the plate surface of the sound-absorbing plate (20) is arranged perpendicular to the direction in which the fluid in the shell (10) flows out.

2. The silent air distribution device according to claim 1, characterized in that: A plurality of sound-absorbing panels (20) are arranged in the housing (10), and the plurality of sound-absorbing panels (20) are arranged in parallel along the direction in which the fluid flows out.

3. The silent air distribution device according to claim 2, characterized in that: The distance between two adjacent silencer plates (20) is 40 mm to 60 mm, the curved surface of the silencer plate (20) is a circular curved surface, and the curvature of the silencer plate (20) is 0.5 to 2.

4. The silent air distribution device according to claim 3, characterized in that: The length of the circular curved surface of the muffler plate (20) is greater than or equal to one third of the circumference and less than or equal to one half of the circumference.

5. The silent air distribution device according to claim 1, characterized in that: The sound-absorbing plate (20) comprises a first porous layer (21), a sound-absorbing material layer (22) and a second porous layer (23) which are arranged in sequence, and the first porous layer (21) and the second porous layer (23) are both provided with sound-absorbing holes which are perpendicular to the plate surface.

6. The silent air distribution device according to claim 5, characterized in that: The sound-absorbing material layer (22) comprises a sound-absorbing foam layer and a sound-absorbing cotton layer.

7. The silent air distribution device according to claim 1, characterized in that: The shell (10) is provided with an outlet pipe (14), and an air dispersion plate (30) is sleeved at the outlet of the outlet pipe (14).

8. The silent air distribution device according to claim 7, characterized in that: The outlet pipe (14) is provided with a wind shield (40), the wind shield (40) is connected to the wind dispersion plate (30) via a connecting piece (31), and the wind shield (40) is parallel to the wind dispersion plate (30) and a gap is provided therebetween.

9. The silent air distribution device according to claim 7, characterized in that: The shell (10) is provided with an inlet pipe (13), and the inlet pipe (13) and the outlet pipe (14) are respectively arranged on two adjacent side surfaces of the shell (10), and impurity filters are provided in the inlet pipe (13) and the outlet pipe (14).

10. A ship ventilation system, characterized in that: It comprises an air conditioner and the silent air cabinet (100) according to any one of claims 1 to 9, wherein the air outlet of the air conditioner is connected to the fluid inlet of the silent air cabinet (100).

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