Noise reduction device of diesel generating set

Abstract

The utility model discloses a diesel generating set noise reduction device which comprises a noise reduction outer box, and side plates and / or a top plate of the noise reduction outer box are formed by splicing splice plates and auxiliary plates. The splice plate is formed by overlapping an outer decoration plate, a sound absorption plate and a perforated plate, the outer decoration plate, the sound absorption plate and the perforated plate are the same in length and width, and notches are formed in the middles of the four edges of the sound absorption plate so that inserting grooves can be formed in the four end faces of the splice plate; the auxiliary plates are formed by connecting blocks matched with the slots and mirror image blocks of the blocks, and the auxiliary plates are inserted into the slots in the opposite end faces of the two splice plates respectively when the two splice plates are spliced. The noise reduction outer box is formed by splicing the splicing plates and the auxiliary plates, the design can be customized according to the actual size and shape of the diesel generating set, and adaptability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of noise reduction. More specifically, the utility model relates to a diesel generating set noise reduction device. BACKGROUND

[0002] The diesel generating set is a kind of power supply equipment with diesel engine as prime mover, drags synchronous generator to generate electricity, and it is a kind of starting quickly, easy to operate and maintain, less investment, and the adaptability to environment is stronger power generation device, however, the generator set generates larger noise, and it is easy to cause influence to the surrounding.

[0003] In the patent with the authorization announcement No. CN220849847U, a kind of diesel generating set noise reduction device, including support bottom frame, the inner side of the support bottom frame is provided with support plate, the adjacent side wall between support plate and support bottom frame is provided with several shock-absorbing connecting mechanisms, the upper end of the support plate is provided with generator and noise reduction outer box, the noise reduction outer box is located at the outer side of generator, the upper side wall and the front side wall of the noise reduction outer box are provided with access door, the right side wall of the noise reduction outer box is provided with observation window, the left side end of the noise reduction outer box is provided with heat dissipation window.

[0004] However, the size of the noise reduction outer box of the diesel generating set noise reduction device in the above-mentioned patent is relatively fixed, it is difficult to flexibly adjust according to different models and specifications of diesel generating set, different sizes of diesel generating set may encounter adaptation problem when installing, leading to that the noise reduction device cannot be widely applied to various diesel generating sets. SUMMARY

[0005] One object of the utility model is to solve at least the above problems, and provide at least the advantages to be explained later.

[0006] In order to realize these purposes and other advantages according to the utility model, a kind of diesel generating set noise reduction device is provided, including noise reduction outer box, the side plate and / or top plate of the noise reduction outer box are spliced by splice plate and auxiliary board;

[0007] The splice plate is stacked by outer veneer, sound-absorbing board and porous plate, the length of outer veneer, sound-absorbing board and porous plate is same, and the width is also same, recess is provided in the middle of the four edges of sound-absorbing board, to form the slot on the four end faces of the splice plate;

[0008] The auxiliary board is connected by the block body matched with the slot and its mirror image block body, and is inserted into the slot on the opposite end face of two splice plates when two splice plates are spliced.

[0009] Preferably, the material of the auxiliary board is same as the material of the sound-absorbing board.

[0010] Preferably, the auxiliary plate and the splicing plate are in interference fit.

[0011] Preferably, the auxiliary plate and the splicing plate are in clearance fit and an adhesive layer is arranged between the auxiliary plate and the splicing plate.

[0012] Preferably, the auxiliary plate and the splicing plate are connected by self-tapping screws driven from the surface of the splicing plate into the auxiliary plate.

[0013] Preferably, the splicing plate at the edge of the side plate and / or the top plate of the noise reduction outer box is provided with a filler plate matching the slot in the spare slot, and the material of the filler plate is the same as that of the sound absorption plate.

[0014] Preferably, the inner corner between the side plates of the noise reduction outer box and / or the inner corner between the side plates and the top plate of the noise reduction outer box is connected by an angle steel connector.

[0015] Preferably, a plurality of splicing plates are left on one side plate of the noise reduction outer box to form a door opening, and one side edge of the door opening is hingedly connected with a door plate covering the door opening by a hinge, and the door plate is also composed of the outer decorative plate, the sound absorption plate and the porous plate.

[0016] Preferably, at least one splicing plate is left on at least one side plate of the noise reduction outer box to form a window, and a heat dissipation window is installed in the window.

[0017] Preferably, the bottom of the noise reduction outer box is further provided with a support plate, a support bottom frame and a damping connection mechanism.

[0018] The utility model at least includes the following advantages: because the noise reduction outer box is spliced by splicing plate and auxiliary plate, this design can be customized according to the actual size and shape of diesel generating set, and the adaptability is strong. Regardless of the size and shape of the generator set, effective noise control can be carried out through the noise reduction device.

[0019] Other advantages, objects and features of the utility model will be embodied partly through the following description, and some will be understood by the person skilled in the art through the research and practice of the utility model. ACCURACY OF DRAWINGS

[0020] Figure 1 It is the structure schematic diagram of the noise reduction outer box of the utility model;

[0021] Figure 2 It is the structure schematic diagram of the splicing plate of the utility model;

[0022] Figure 3 It is the structure schematic diagram of the splicing plate of the utility model through the auxiliary plate mutual splicing;

[0023] Figure 4 The structure schematic diagram of the side plate of the noise reduction outer box and the side plate is connected with each other through the angle steel connecting piece. DETAILED DESCRIPTION

[0024] The utility model makes further detailed description in combination with the drawings, so that the person skilled in the art can implement according to the description text.

[0025] It should be noted that the experimental methods in the following implementation solutions are all conventional methods, and the reagents and materials can be obtained from commercial channels unless otherwise specified; in the description of the utility model, the terms "lateral", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] As shown in Figures 1-4 The utility model provides a diesel generating set noise reduction device, including noise reduction outer box 1, the side plate and / or top plate of noise reduction outer box 1 is connected by splicing board 11 and auxiliary board 12;

[0027] The splicing board 11 is overlapped by outer veneer 111, sound absorption board 112 and porous plate 113, the length of outer veneer 111, sound absorption board 112 and porous plate 113 is same, and the width is same, recess is arranged in the middle of four edges of sound absorption board 112, to form the slot on four end faces of splicing board 11;

[0028] The auxiliary board 12 is connected by the block body matched with the slot and the mirror image block body, and is inserted into the slot on the opposite end face of two splicing boards 11 when two splicing boards 11 are spliced.The block body and the mirror image block body constituting the auxiliary board are an integral plate body.

[0029] In the above embodiment, the noise reduction outer box 1 is spliced by the splicing board 11 and the auxiliary board 12, and this design makes the box structure more flexible and easy to assemble.Meanwhile, the splicing board 11 is overlapped by the outer veneer 111, the sound absorption board 112 and the porous plate 113, and these boards jointly act to significantly absorb and insulate the noise generated when the diesel generating set operates.Especially, the sound absorption board 112 and the porous plate 113 can effectively absorb noise energy and reduce the propagation of noise.

[0030] In the design of the splicing plate 11, notches are arranged in the middle of the four edges of the sound-absorbing plate 112, forming insertion slots, and the auxiliary plate 12 is matched with the insertion slots. This design allows the two splicing plates 11 to be tightly connected when spliced, and the auxiliary plate 12 is inserted into the insertion slots, which not only enhances the structural strength of the box, but also further improves the noise reduction effect. At the same time, this design is convenient for installation and disassembly, and is convenient for subsequent maintenance and maintenance.

[0031] Since the noise reduction outer box 1 is spliced by the splicing plate 11 and the auxiliary plate 12, this design can be customized according to the actual size and shape of the diesel generator set, and has strong adaptability. Regardless of the size and shape of the generator set, effective noise control can be achieved through this noise reduction device.

[0032] Further, the material of the auxiliary plate 12 is the same as that of the sound-absorbing plate 112.

[0033] Since the auxiliary plate 12 and the sound-absorbing plate 112 are made of the same material, they can maintain consistent acoustic properties. In the noise reduction device, the sound-absorbing plate 112 is the core component responsible for absorbing and isolating noise. The auxiliary plate 12, as a component spliced with the sound-absorbing plate 112, the choice of its material has an important influence on the overall noise reduction effect. Using the same material as the sound-absorbing plate 112 can ensure that the auxiliary plate 12 will not become a "weak link" for noise propagation after splicing, thereby maintaining the overall noise reduction performance of the noise reduction device.

[0034] In addition, the auxiliary plate 12 and the sound-absorbing plate 112 of the same material can better fit when spliced, further improving the noise reduction effect. At the same time, this design also helps to enhance the structural stability of the noise reduction device. Since the auxiliary plate 12 and the sound-absorbing plate 112 are made of the same material, their thermal expansion coefficients, mechanical strengths, and other physical properties are similar, so under the action of external factors such as temperature changes and mechanical vibrations, the noise reduction device can maintain good stability and durability.

[0035] Specifically, the auxiliary plate 12 and the splicing plate 11 have the following three connection modes:

[0036] (1) The auxiliary plate 12 and the splicing plate 11 are in interference fit. This connection mode has the advantages of compact structure, firm connection, and not easy to loosen, and does not require additional connecting parts or adhesives, reducing costs. The disadvantage is that the assembly is difficult, requiring accurate size control and assembly skills, which may cause stress concentration between the auxiliary plate 12 and the splicing plate 11, increasing the risk of damage.

[0037] (2) The auxiliary plate 12 and the splicing plate 11 are gap-fitted, and an adhesive layer is arranged between the auxiliary plate 12 and the splicing plate 11. This connection mode has the advantages of relatively simple assembly, good sealing and sound insulation effect realized through the adhesive layer, stress buffering of the adhesive layer, and reduction of direct friction and damage between the auxiliary plate 12 and the splicing plate 11, and the disadvantages of possible influence of environmental factors such as temperature and humidity on the strength and durability of the adhesive layer, and increased maintenance difficulty and cost due to the need to damage the adhesive layer when the auxiliary plate 12 is maintained and replaced.

[0038] (3) The auxiliary plate 12 and the splicing plate 11 are connected by self-tapping screws inserted from the surface of the splicing plate 11 into the auxiliary plate 12. This connection mode has the advantages of firm connection and high reliability, and the advantages of convenience of disassembly and reinstallation when the auxiliary plate 12 is maintained and replaced by only unscrewing the screws, and the disadvantages of increased processing cost and complexity due to the need to punch holes in the auxiliary plate 12 and the splicing plate 11, and possible stress concentration at the screw connection, which may cause loosening or damage after long-term use.

[0039] Further, the splicing plate 11 located at the edge of the side plate and / or the top plate of the noise reduction outer box 1 is provided with a filler plate matched with the spare slot in the splicing plate 11, and the material of the filler plate is the same as that of the sound-absorbing plate 112.

[0040] The use of the filler plate can effectively fill the spare slot between the splicing plates 11, avoiding the problem of noise leakage due to the vacancy of the slot. Since the material of the filler plate is the same as that of the sound-absorbing plate 112, it also has good sound-absorbing performance, so it can further absorb and isolate noise and enhance the overall noise reduction effect of the noise reduction device. The presence of the filler plate also helps to maintain the structural integrity of the noise reduction outer box 1.

[0041] Further, the inner corner between the side plates of the noise reduction outer box 1 and / or the inner corner between the side plates and the top plate of the noise reduction outer box 1 is connected by an angle steel connecting piece 13.

[0042] Specifically, the angle steel connecting piece 13 is an angle steel with through holes opened on both side plate bodies of the angle steel. In use, after the side plates of the noise reduction outer box 1 form a right angle, the angle steel connecting piece 13 is placed at the inner corner between the side plates, and then self-tapping screws are inserted into the side plates through the through holes, so that the side plates of the noise reduction outer box 1 are fixedly connected.

[0043] The connection process between the side plates and the top plate of the noise reduction outer box 1 is similar to the connection process between the side plates of the noise reduction outer box 1.

[0044] Of course, in order to strengthen the connection between the side plates of the noise reduction outer box 1 and the side plates, the outer corners between the side plates and the side plates can also be connected by angle steel connectors 13. The same is true between the side plates and the top plate of the noise reduction outer box 1.

[0045] Further, a plurality of spliced plates 11 are reserved on one side plate of the noise reduction outer box 1 to form a door hole, and a door plate 2 covering the door hole is hinged on one side of the door hole through a hinge. The door plate 2 is also composed of the outer decorative plate 111, the sound-absorbing plate 112 and the porous plate 113.

[0046] By reserving a plurality of spliced plates 11 on one side plate of the noise reduction outer box 1 to form a door hole, and hinging a door plate 2 covering the door hole on one side of the door hole through a hinge, the noise reduction device has the functions of convenient opening and closing while maintaining the overall noise reduction effect. This design not only meets the noise reduction demand, but also takes into account the convenience of actual use. The door plate 2 is composed of the outer decorative plate 111, the sound-absorbing plate 112 and the porous plate 113, so that the door plate 2 itself also has good noise reduction performance.

[0047] Further, at least one spliced plate 11 is reserved on at least one side plate of the noise reduction outer box 1 to form a window, and a heat dissipation window 3 is installed in the window.

[0048] The heat dissipation window 3 disclosed in the prior art is not described here. By reserving spliced plates 11 on the side plates of the noise reduction outer box 1 to form a window, and installing a heat dissipation window 3 in the window, the heat dissipation efficiency inside the noise reduction device can be improved, and the heat inside the noise reduction device can be discharged in time to avoid the problem of overheating of the equipment caused by heat accumulation.

[0049] Further, a support plate, a support bottom frame and a damping connection mechanism are further provided below the noise reduction outer box 1. The support plate, the support bottom frame and the damping connection mechanism have been disclosed in the prior art, and will not be described here. The damping connection mechanism can buffer the collision between the support bottom frame and the generator, and effectively avoid the problem of noise generated during the collision.

[0050] Although the embodiments of the present application have been disclosed as above, they are not limited to the application and implementation described in the specification. It can be fully applied to various fields suitable for the present application, and other modifications can be easily realized by those skilled in the art. Therefore, the present application is not limited to specific details and the figures shown and described herein, without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A noise reduction device for a diesel generator set comprising a noise reduction enclosure, characterised in that, The side plate and / or the top plate of the noise reduction outer box are spliced by splicing plates and auxiliary plates; The splicing plate is composed of an outer decorative plate, an acoustic absorption plate and a porous plate, the length and width of the outer decorative plate, the acoustic absorption plate and the porous plate are the same, and notches are arranged at the middle of the four edges of the acoustic absorption plate to form a slot on each end face of the splicing plate; The auxiliary plate is connected by a block matching the slot and its mirror image block, and is inserted into the slot on the opposite end face of the two splicing plates when the two splicing plates are spliced.

2. The noise reducing apparatus for a diesel generator set according to claim 1, wherein The material of the auxiliary plate is the same as that of the acoustic absorption plate.

3. The noise reducing apparatus for a diesel generator set according to claim 1, wherein The auxiliary plate and the splicing plate are in interference fit.

4. The noise reducing apparatus for a diesel generator set according to claim 1, wherein The auxiliary plate and the splicing plate are in clearance fit, and an adhesive layer is arranged between the auxiliary plate and the splicing plate.

5. The noise reducing apparatus for a diesel generator set according to claim 1, wherein The auxiliary plate and the splicing plate are connected by self-tapping screws driven into the auxiliary plate from the surface of the splicing plate.

6. The noise reducing apparatus for a diesel generator set according to claim 1, wherein The splicing plate located at the edge of the side plate and / or the top plate of the noise reduction outer box is provided with a filler plate matching the slot in the spare slot, and the material of the filler plate is the same as that of the acoustic absorption plate.

7. The noise reducing device for a diesel generator set according to claim 1, wherein The inner corner between the side plates of the noise reduction outer box and / or the inner corner between the side plates and the top plate of the noise reduction outer box are connected by angle steel connectors.

8. The noise reducing device for a diesel generator set according to claim 1, wherein Several splicing plates are left on one side plate of the noise reduction outer box to form a door opening, one side edge of the door opening is hinged to a door plate covering the door opening by a hinge, and the door plate is also composed of an outer decorative plate, an acoustic absorption plate and a porous plate.

9. The noise reducing device for a diesel generator set according to claim 1, wherein At least one splicing plate is left on at least one side plate of the noise reduction outer box to form a window, and a heat dissipation window is installed in the window.

10. The noise reducing apparatus for a diesel generator set according to claim 1, wherein A support plate, a support bottom frame and a damping connection mechanism are further arranged below the noise reduction outer box.

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