Vibration and noise reduction structure of ship ventilation system

Abstract

The utility model belongs to a vibration and noise reduction structure of a ship ventilation system in the technical field of ship ventilation systems. The fan (1) is connected with the base (3) through the fan elastic element (2), an air outlet of the fan (1) is connected with the air supply pipeline (4), the air supply pipeline (4) comprises a flexible section (5) and a rigid section (6), one end of the flexible section (5) is connected with the air outlet of the fan (1), the other end of the flexible section (5) is connected with one end of the rigid section (6), the rigid section (6) is wrapped by the noise reduction layer (7), and the noise reduction layer (7) is fixed through an adhesive tape (8). The vibration and noise reduction structure of the ship ventilation system is simple in structure, vibration reduction and noise reduction are effectively achieved through different aspects of improvement, the comfort of a ship is improved, and work and rest of workers are prevented from being affected.

Description

Technical Field

[0001] This utility model belongs to the technical field of ship ventilation systems, and more specifically, it relates to a vibration reduction and noise reduction structure for ship ventilation systems. Background Technology

[0002] Dynamic analysis of the air duct fluid reveals that during ship operation, the air supply duct (ventilation duct) will vibrate due to interference from external wind and the vibration of the cabin air conditioning fan itself. When the vibration frequency reaches a certain value, noise will be generated, and the higher the vibration frequency, the more piercing the noise will be, seriously affecting the work and rest of the staff.

[0003] Existing technology includes a device titled "A Ship Cabin Vibration Reduction and Noise Reduction Component" with publication number CN119319887A. This device discloses a ship cabin vibration reduction and noise reduction component, comprising a ship cabin shell; ventilation ducts located on both sides of the front end of the ship cabin shell; ventilation fan blades movably installed inside the ventilation ducts; and a noise reduction component including a lubrication and noise reduction chamber. This technical solution utilizes a lubricating oil storage tank, a noise-reducing rubber block, and a power component. The power component drives a blocking component to release the blockage between the lubricating oil storage tank and the lubrication and noise reduction chamber. Then, when the ventilation fan blades rotate, the entire ventilation duct vibrates, causing some gas from the noise-reducing rubber block to enter the lubricating oil storage tank through the ventilation duct. This drives a piston block, guiding the lubricating oil from the storage tank into the lubrication and noise reduction chamber, thus smoothly lubricating the contact area between the ventilation fan blades and the ventilation duct, reducing friction, and ultimately achieving noise reduction and improving passenger comfort.

[0004] However, this technology does not involve the technical solution of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a simple structure for reducing vibration and noise in a ship ventilation system, which can effectively reduce vibration and noise, improve ship comfort, and avoid affecting the work and rest of the staff, in order to address the shortcomings of the existing technology.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model is a vibration reduction and noise reduction structure for a ship ventilation system. The fan is connected to the base through the fan's elastic element. The fan outlet is connected to the air supply duct. The air supply duct includes a flexible section and a rigid section. One end of the flexible section is connected to the fan outlet, and the other end of the flexible section is connected to one end of the rigid section. The noise reduction layer wraps around the rigid section and is fixed with tape.

[0008] The elastic element of the fan is a helical spring or an elastic rubber block.

[0009] The rigid section of the air supply pipeline comprises a horizontal section and a vertical section, and the horizontal section and the vertical section are connected through an arc-shaped part.

[0010] The flexible section of the air supply pipeline is horizontally arranged.

[0011] The rigid section of the air supply pipeline is connected with a pipeline fixing hanger pipe clamp, and an elastic rubber gasket is arranged between the rigid section and the pipeline fixing hanger pipe clamp.

[0012] The expansion angle of the arc-shaped part is between 20° and 45°.

[0013] The noise reduction layer is a mineral fiber blanket or felt.

[0014] The adhesive tape is an aluminum foil adhesive tape, and the aluminum foil adhesive tape is wound in multiple gaps.

[0015] The air supply pipeline comprises a main pipe and a branch pipe, the main pipe and the branch pipe are connected through an arc-shaped transition structure, and a flow guide vane is arranged between the main pipe and the branch pipe.

[0016] The technical scheme of the utility model has the advantages that the working principle and beneficial effects are as follows:

[0017] The ship ventilation system damping and noise reduction structure has the advantages that when the fan is installed, a fan elastic element is arranged between the fan and the base on which the fan is installed, so that the noise generated by the vibration of the fan during operation is effectively reduced, and the damping and noise reduction of the link are realized; when the fan outlet is connected with the air supply pipeline, the air supply pipeline comprises a flexible section and a rigid section, one end of the flexible section is connected with the fan outlet, and the other end of the flexible section is connected with one end of the rigid section, so that the fan outlet is connected through the flexible structure, and the sound insulation and noise reduction of the link are realized; when the air supply pipeline is installed, the rigid section is wrapped with a noise reduction layer, the noise reduction layer is fixed through an adhesive tape, the rigid section of the air supply pipeline is wrapped with the sound insulation material, the surrounding surface is fixed through the aluminum foil adhesive tape, the noise reduction layer realizes the sound insulation and noise reduction of the air supply pipeline link, and the adhesive tape realizes the fixation of the noise reduction layer and cannot be easily detached. BRIEF DESCRIPTION OF DRAWINGS

[0018] The content expressed by the drawings of the present specification and the marks in the drawings are briefly described as follows:

[0019] Figure 1 The ship ventilation system damping and noise reduction structure is a structural schematic view.

[0020] Figure 2 The ship ventilation system damping and noise reduction structure is a structural schematic view of the noise reduction layer part of the air supply pipeline.

[0021] Figure 3 The structure schematic view of the air supply pipeline of the ship ventilation system damping and noise reduction structure is shown in the figure.

[0022] The marks in the figure are respectively: 1, fan; 2, fan elastic element; 3, base; 4, air supply pipeline; 5, flexible section; 6, rigid section; 7, noise reduction layer; 8, adhesive tape; 9, horizontal section; 10, vertical section; 11, arc-shaped part; 12, pipeline fixing hanger pipe clamp; 13, main pipe; 14, branch pipe; 15, guide vane. DETAILED DESCRIPTION

[0023] The shape, structure, mutual position and connecting relationship between the parts, the function and working principle of each part of the specific embodiment of the utility model are further explained in detail by comparing the drawings and describing the embodiment as follows:

[0024] As shown in the figure, Figure 1 - the figure, Figure 3 The utility model discloses a ship ventilation system damping and noise reduction structure, fan 1 is connected with base 3 through fan elastic element 2, and the air outlet of fan 1 is connected with air supply pipeline 4, air supply pipeline 4 includes flexible section 5 and rigid section 6, one end of flexible section 5 is connected with the air outlet of fan 1, the other end of flexible section 5 is connected with one end of rigid section 6, noise reduction layer 7 is wrapped around rigid section 6, and noise reduction layer 7 is fixed through adhesive tape 8.The above structure, aiming at the deficiency in the prior art, proposes an improved technical scheme.The structure is improved in different links of the ventilation system.Specifically, the connecting part of fan 1 and base 3 is improved, (1) when installing fan 1, fan elastic element 2 (which can be a damper or an elastic gasket) is installed between fan 1 and the base 3 for installing fan, thereby effectively reducing the noise generated by the vibration of fan 1 during work, and realizing the damping and noise reduction of the link, (2) when the air outlet of fan 1 is connected with air supply pipeline 4, air supply pipeline 4 includes flexible section 5 and rigid section 6, one end of flexible section 5 is connected with the air outlet of fan 1, and the other end of flexible section 5 is connected with one end of rigid section 6, that is, the outlet of the fan is connected through a flexible structure, thereby playing the role of sound insulation and noise reduction of the link, (3) when installing air supply pipeline 4, noise reduction layer 7 is wrapped around the outer ring of rigid section 6, noise reduction layer 7 is fixed through adhesive tape 8, the rigid section 6 of the air supply pipeline is wrapped by the sound insulation material, and the surrounding surface is fixed by the aluminum foil adhesive tape, noise reduction layer 7 realizes the sound insulation and noise reduction of the air supply pipeline link, and the adhesive tape realizes the fixation of noise reduction layer 7 and cannot easily fall off.The ship ventilation system damping and noise reduction structure disclosed by the utility model has the advantages of simple structure, effective damping and noise reduction through improvement in different aspects, improved ship comfort, and avoidance of the influence on the work and rest of the staff.

[0025] The fan elastic element 2 is a spiral spring or an elastic rubber block.

[0026] The rigid section 6 of the air supply pipeline 4 comprises a horizontal section 9 and a vertical section 10, and the horizontal section 9 and the vertical section 10 are connected through an arc-shaped part 11.

[0027] The rigid section 6 of the air supply pipeline 4 is connected with the pipeline fixed hanger pipe clamp 12, and an elastic rubber gasket is arranged between the rigid section 6 and the pipeline fixed hanger pipe clamp 12.

[0028] The expansion angle of the arc-shaped part 11 is between 10° and 45°.

[0029] The noise reduction layer 7 is a mineral fiber blanket or felt.

[0030] The air supply pipeline 4 comprises a main pipe 13 and a branch pipe 14, and the main pipe 13 and the branch pipe 14 are connected through an arc-shaped transition structure, and a flow guide vane 15 is arranged between the main pipe 13 and the branch pipe 14.

[0031] The ship ventilation system damping and noise reduction structure, when the structure is set, the different links of the ventilation system are improved. Specifically, the connecting part of the fan 1 and the base 3 is improved, (1) when the fan 1 is installed, the fan elastic element 2 (the fan elastic element can be a damper or an elastic gasket) is installed between the fan 1 and the base 3 for installing the fan, so that the noise generated by the vibration of the fan 1 during work is effectively reduced, and the shock absorption and noise reduction of the improved link are realized; (2) when the fan 1 air outlet is connected with the air supply pipeline 4, the air supply pipeline 4 comprises a flexible section 5 and a rigid section 6, one end of the flexible section 5 is connected with the fan 1 air outlet, the other end of the flexible section 5 is connected with one end of the rigid section 6, that is, the fan outlet is connected through the flexible structure, thereby playing the sound insulation and noise reduction role of the link; (3) when the air supply pipeline 4 is installed, the noise reduction layer 7 wraps the outer circle of the rigid section 6, the noise reduction layer 7 is fixed through the adhesive tape 8, the sound insulation material realizes that the rigid section 6 of the air supply pipeline is wrapped, and the surrounding surface is fixed by using the aluminum foil adhesive tape, the noise reduction layer 7 realizes the sound insulation and noise reduction of the air supply pipeline link, the adhesive tape realizes the fixation of the noise reduction layer 7, and the noise reduction layer 7 cannot easily fall off.

[0032] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various improvements are made by adopting the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, and all falls within the protection scope of the utility model.

Claims

1. A vibration and noise reduction structure for a ventilation system of a ship, characterized by: The fan (1) is connected with the base (3) through the fan elastic element (2), the fan (1) air outlet is connected with the air supply pipeline (4), the air supply pipeline (4) includes the flexible section (5) and the rigid section (6), one end of the flexible section (5) is connected with the fan (1) air outlet, the other end of the flexible section (5) is connected with one end of the rigid section (6), the noise reduction layer (7) is wrapped with the rigid section (6), and the noise reduction layer (7) is fixed through the adhesive tape (8).

2. The vibration and noise reduction structure for a ventilation system of a ship according to claim 1, characterized in that: The fan elastic element (2) is a spiral spring or an elastic rubber block.

3. The vibration and noise reducing structure for a ventilation system of a ship according to claim 1 or 2, characterized in that: The rigid section (6) of the air supply pipeline (4) includes the horizontal section (9) and the vertical section (10), and the horizontal section (9) and the vertical section (10) are connected through the arc-shaped part (11).

4. The vibration and noise reduction structure for a ventilation system of a ship according to claim 3, characterized in that: The flexible section (5) of the air supply pipeline (4) is horizontally arranged.

5. The vibration and noise reduction structure for a marine ventilation system of claim 2, wherein: The rigid section (6) of the air supply pipeline (4) is connected with the pipeline fixed hanger pipe clamp (12), and an elastic rubber gasket is arranged between the rigid section (6) and the pipeline fixed hanger pipe clamp (12).

6. The vibration and noise reduction structure for a marine ventilation system of claim 3, wherein: The expansion angle of the arc-shaped part (11) is between 20°-45°.

7. The vibration and noise reduction structure for a ventilation system of a ship according to claim 1 or 2, characterized in that: The noise reduction layer (7) is a mineral fiber blanket or felt.

8. The vibration and noise reduction structure for a ventilation system of a ship according to claim 1 or 2, characterized in that: The adhesive tape (8) is an aluminum foil adhesive tape, and the aluminum foil adhesive tape is wound in multiple gaps.

9. The vibration and noise reduction structure for a ventilation system of a ship according to claim 1 or 2, characterized in that: The air supply pipeline (4) includes the main pipe (13) and the branch pipe (14), and the main pipe (13) and the branch pipe (14) are arc-shaped transition structures, and guide vanes (15) are arranged between the main pipe (13) and the branch pipe (14).

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