Noise reduction device for power transformation equipment

Abstract

The utility model relates to the technical field of noise reduction, and discloses a noise reduction device for power transformation equipment, which comprises an equipment shell, and a first noise reduction assembly and a second noise reduction assembly are arranged in the equipment shell. The first noise reduction assembly comprises a plurality of sound absorption plate assemblies, the sound absorption plate assemblies are in sliding connection with the equipment shell, and the multiple sound absorption plate assemblies are parallel to different side walls of the equipment shell; the second noise reduction assembly comprises a plurality of sound absorption covers, the appearance of the sound absorption covers is the same as that of the inner cavity of the equipment shell, the sound absorption covers are arranged in the equipment shell in a sleeved mode, the multiple sound absorption covers are arranged in the equipment shell in a stacked mode, and the sound absorption covers are in sliding connection with the equipment shell; according to the utility model, the first noise reduction assembly and the second noise reduction assembly are arranged to realize multi-layer noise protection on the side wall of the equipment shell, so that the noise generated by the substation equipment can be sealed in a closed cavity, and the noise is prevented from leaking out from the side wall of the equipment shell to generate adverse effects on the surrounding environment; and the noise reduction effect is more comprehensive.

Description

Technical Field

[0001] The utility model relates to the technical field of noise reduction, in particular to a noise reduction device for power transformation equipment. Background Art

[0002] With the continuous expansion of urban areas in my country and the rapid development of power projects, particularly ultra-high voltage (UHV), substations have become essential hubs for power transmission. In recent years, many substations have been built close to environmentally sensitive areas such as residential areas, schools, and hospitals. The noise pollution generated during substation operation not only affects the normal operation of equipment but also seriously impacts the surrounding environment and the normal work and life of residents.

[0003] Among the existing technologies, see the document with publication number CN218242592U. Although the document discloses structures such as sound-absorbing panels and silencer pages to solve the problem of excessive noise in existing substations, the above solution adopts a single silencer page, and the silencer page is set on one side of the substation equipment. No silencer components are set on other sides of the substation, and a more comprehensive silencer environment cannot be formed. This makes it easy for noise to be transmitted from other directions of the substation equipment, and the noise reduction effect is greatly reduced. Utility Model Content

[0004] The technical problem to be solved by the present invention is: how to reduce noise better and more comprehensively. In order to solve the above technical problem, the present invention provides a noise reduction device for power substation equipment, comprising an equipment housing, characterized in that a first noise reduction component and a second noise reduction component are provided in the equipment housing;

[0005] The first noise reduction assembly includes a plurality of sound absorbing panel assemblies, the sound absorbing panel assemblies are slidably connected to the device housing along a first direction, and the plurality of sound absorbing panel assemblies are respectively parallel to different side walls of the device housing;

[0006] The second noise reduction assembly includes a plurality of sound-absorbing covers, each of which has an appearance identical to that of the cavity inside the device housing and is sleeved within the device housing. The plurality of sound-absorbing covers are stacked along a first direction within the device housing, and the sound-absorbing covers are slidably connected to the device housing.

[0007] The first direction is the direction from the back panel to the front panel of the device housing.

[0008] Preferably, the sound absorbing panel assembly includes a sliding member and a plurality of sound absorbing panels, the sliding member includes a vertical plate and a plug-in plate that are fixedly connected, the vertical plate is fixedly connected to the sound absorbing panel, and the plug-in plate is plugged into a plug-in slot provided in the device housing.

[0009] Preferably, the inner wall of the plug-in slot is provided with a first magnetic strip, the plug-in plate is provided with a second magnetic strip corresponding to the first magnetic strip, the first magnetic strip and the second magnetic strip are attracted to each other by opposite charges; the slot wall of the plug-in slot is provided with a limiting slot corresponding to the vertical plate.

[0010] Preferably, the sound-absorbing panel comprises a plurality of sound-absorbing strips, and docking posts and docking holes are respectively provided on both sides of the sound-absorbing strips along the first direction, and adjacent sound-absorbing strips are spliced through corresponding docking posts and docking holes to form the sound-absorbing panel.

[0011] Preferably, the back panel of the device housing is provided with a plurality of limiting connection columns, and the sound-absorbing cover is provided with limiting through holes corresponding to the limiting connection columns.

[0012] Preferably, the sound absorbing covers are provided with docking grooves and docking ridges on both sides along the first direction, respectively, and the docking grooves and docking ridges in adjacent sound absorbing covers correspond to each other, so that the adjacent sound absorbing covers are spliced and fixed.

[0013] Preferably, a buffer device is also included, which includes a connecting seat fixedly connected to the equipment housing, a connecting frame is provided at the end of the connecting seat away from the equipment housing, a limiting ring is provided at the bottom end of the connecting frame, a supporting column is provided on the limiting ring, a spring is provided between the top of the supporting column and the inner top end of the connecting frame, a buffer grounding pad is provided at the bottom end of the support column, and the buffer device is used for contact with the ground for buffering to reduce noise when the substation equipment moves.

[0014] Preferably, both the front panel and the back panel of the device housing are provided with noise reduction panels.

[0015] Compared with the prior art, the noise reduction device for power conversion equipment provided in the embodiment of the present invention has the following beneficial effects:

[0016] In the present invention, the multiple sound-absorbing panel assemblies in the first noise reduction assembly are respectively parallel to the side walls in the equipment casing, thereby providing noise reduction effects in multiple side directions in the equipment casing, and preventing noise from being transmitted from the sides of the equipment casing; and the sound-absorbing cover, because its shape is the same as the shape of the internal cavity of the equipment casing, the sound-absorbing cover arranged in the equipment casing can further play a more comprehensive protective role against noise, preventing noise from being transmitted from the sides. The stacking of multiple sound-absorbing covers can also expand the range of noise absorption and reduction, and minimize the transmission of noise. The present invention simultaneously arranges multiple sound-absorbing panel assemblies and sound-absorbing covers, so that the absorption and protection of the noise of the substation equipment is more comprehensive, and can prevent the noise from being transmitted from the sides of the equipment casing, thereby improving the noise reduction effect of the substation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a front view of the utility model;

[0018] Figure 2 This utility model Figure 1 A partial view of

[0019] Figure 3 It is a three-dimensional view of the utility model;

[0020] Figure 4 This is a structural view of the sliding member of the utility model;

[0021] Figure 5 This is a structural view of the sound-absorbing strip of the utility model;

[0022] Figure 6 This is a structural view of the sound-absorbing cover of the present invention.

[0023] In the figure: 1, device housing; 11, back panel; 12, plug-in slot; 121, first magnetic strip; 122, limit slot; 13, limit connecting post;

[0024] 2. First noise reduction assembly; 21. Sound-absorbing panel assembly; 211. Sound-absorbing panel; 2111. Sound-absorbing strip; 2112. Docking post; 2113. Docking hole; 212. Sliding member; 2121. Vertical panel; 2122. Plug-in board; 2123. Second magnetic strip

[0025] 3. Second noise reduction component; 31. Sound absorbing cover; 311. Position limiting through hole; 312. Docking groove; 313. Docking ridge;

[0026] 4. Buffer device; 41. Connecting seat; 42. Connecting frame; 43. Limiting ring; 44. Support column; 45. Spring; 46. Buffer grounding pad. DETAILED DESCRIPTION

[0027] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] like Figures 1 to 3 As shown, the preferred embodiment of the present utility model provides a noise reduction device for power conversion equipment, which includes an equipment housing 1, in which a first noise reduction component 2 and a second noise reduction component 3 are provided;

[0029] The first noise reduction assembly 2 includes a plurality of sound absorbing panel assemblies 21, which are slidably connected to the device housing 1 along a first direction, and the plurality of sound absorbing panel assemblies 21 are parallel to different side walls of the device housing 1;

[0030] The second noise reduction assembly 3 includes a plurality of sound-absorbing covers 31. The shape of the sound-absorbing covers 31 is the same as the shape of the cavity inside the device housing 1 and is sleeved inside the device housing 1. The plurality of sound-absorbing covers 31 are stacked along a first direction inside the device housing 1 and are slidably connected to the device housing 1.

[0031] The first direction is the direction from the back panel 11 to the front panel of the device housing 1 .

[0032] Specifically, the outer shell of substation equipment is generally a cubic structure. The front panel of the equipment housing 1 has a display operation panel, an inspection door panel, or an observation window. The opposite panel is the back panel 11 of the equipment housing 1. The side panels, which can also be called side walls, are located between the front and back panels 11. In one specific embodiment, the first noise reduction component 2 includes two sound absorbing panel assemblies 21. These two sound absorbing panel assemblies 21 are respectively arranged above and below the cavity within the equipment housing 1 to respectively block the noise generated by the substation equipment from being transmitted from above or below. In another embodiment, four sound absorbing panel assemblies 21 can be provided. Two sound absorbing panel assemblies 21 are placed horizontally to block and reduce noise transmitted from above or below, respectively. Two sound absorbing panel assemblies 21 are placed vertically on the left and right to block and reduce noise transmitted from the left and right directions, respectively, thereby reducing the impact of the substation equipment noise on the surrounding environment. On this basis, a second noise reduction component 3 can be further provided. The shape of the sound absorbing cover 31 in the second noise reduction component 3 is the same as the shape of the internal cavity of the equipment shell 1, but the size is different. This allows the sound absorbing cover 31 to be installed inside the equipment shell 1. Since the shape of the sound absorbing cover 31 is the same as the shape of the internal cavity of the equipment shell 1, a single sound absorbing cover 31 can achieve noise reduction effects in multiple directions, which has a better and more comprehensive effect on the noise treatment of substation equipment, and can better prevent noise from being transmitted from the side of the equipment shell 1. The stacking of multiple sound absorbing covers 31 along the first direction can expand the width of the second noise reduction component 3, expand the coverage of the sound absorbing cover 31 as much as possible, and reduce the range where noise can leak, thereby making the noise reduction effect more comprehensive and reliable.

[0033] Furthermore, in one specific embodiment, the sound-absorbing panel assembly 21 is disposed between the sound-absorbing cover 31 and the device housing 1. Noise is first absorbed and processed by the sound-absorbing cover 31 and then by the sound-absorbing panel assembly 21. In another embodiment, the sound-absorbing cover 31 may also be disposed between the sound-absorbing panel assembly 21 and the device housing 1. Noise is first processed by the sound-absorbing panel assembly 21 and then by the sound-absorbing cover 31. It should also be noted that the sound-absorbing panel assembly 21 and the sound-absorbing cover 31 may be made of the same or different sound-absorbing materials, preferably different materials, such as sound-absorbing sponge or other porous sound-absorbing structures, and there is no limitation on the materials.

[0034] like Figure 1、 Figure 3 and Figure 4 As shown, in some embodiments, the sound-absorbing panel assembly 21 includes a sliding member 212 and a plurality of sound-absorbing panel members 211. The sliding member 212 includes a vertical plate 2121 and a plug-in plate 2122 that are fixedly connected. The vertical plate 2121 is fixedly connected to the sound-absorbing panel member 211, and the plug-in plate 2122 is plugged into a plug-in slot 12 provided in the device housing.

[0035] Specifically, in a specific embodiment, two sound-absorbing panels 211 are arranged in parallel, namely a first sound-absorbing panel 211 and a second sound-absorbing panel 211. A plug-in slot 12 is provided in the device housing 1. When the sound-absorbing panel assembly 21 needs to be installed, the plug-in plate 2122 of the sliding member 212 is aligned with the position of the plug-in slot 12, and the sliding member 212 is pushed into the plug-in slot 12. The plug-in slot 12 will limit the position of the sliding member 212, and then limit and fix the position of the sound-absorbing panel 211, thereby achieving the fixation of the position of the sound-absorbing panel assembly 21. For a sound-absorbing panel assembly 21, generally, sliding members 212 are provided at both ends along its length direction, and the corresponding device housing 1 will also provide two plug-in slots 12 corresponding to one sound-absorbing panel assembly 21.

[0036] In some embodiments, a first magnetic strip 121 is provided on the inner wall of the plug-in slot 12, and a second magnetic strip 2123 is provided on the plug-in plate 2122 corresponding to the first magnetic strip 121, and the first magnetic strip 121 and the second magnetic strip 2123 are attracted to each other by opposite charges; a limiting slot 122 is provided on the slot wall of the plug-in slot 12 corresponding to the vertical plate 2121.

[0037] Specifically, the coordination between the retaining groove 122 and the vertical plate 2121 further enhances the positional stability of the sound-absorbing panel assembly 21, preventing the panel assembly 21 from becoming loose during prolonged use, which could lead to problems such as excessive gaps and reduced noise reduction. The arrangement of the first magnetic strip 121 and the second magnetic strip 2123 further enhances the positional stability of the sound-absorbing panel assembly 21. Furthermore, mounting grooves are provided on the slot walls of the insertion slot 12 and the insertion plate 2122. The first magnetic strip 121 and the second magnetic strip 2123 are positioned within the mounting grooves, with the surface of the first magnetic strip 121 flush with the inner wall of the insertion slot 12, and the surface of the second magnetic strip 2123 flush with the surface of the insertion plate 2122.

[0038] like Figure 5 As shown, in some embodiments, the sound-absorbing panel 211 includes a plurality of sound-absorbing strips 2111, and the sound-absorbing strips 2111 are respectively provided with docking posts 2112 and docking holes 2113 on both sides along the first direction. Adjacent sound-absorbing strips 2111 are spliced through corresponding docking posts 2112 and docking holes 2113 to form the sound-absorbing panel 2111.

[0039] Specifically, in some embodiments, the sound-absorbing panel 211 is a whole panel, which is processed and formed in one piece. Its data size conforms to the inner size of the equipment shell 1, and the gap between it and the inner wall of the equipment shell 1 is small, which can well meet the noise reduction requirements. In other embodiments, based on modular considerations and the different sizes of the shells of various substation equipment, a single sound-absorbing panel can be designed to be composed of multiple sound-absorbing strips 2111. The sound-absorbing strips 2111 are spliced along a first direction, that is, the width direction. The sound-absorbing strips 2111 are respectively provided with docking posts 2112 and docking holes 2113 on both sides along the width direction. The docking posts 2112 of adjacent sound-absorbing strips 2111 are docked and inserted into the docking holes 2113 to achieve splicing of the sound-absorbing strips 2111. As for how to stabilize the splicing, elastic members and pins can be provided on the side edges of the end of the docking posts 2112, and limiting holes can be provided in the docking holes 2113 to achieve stable splicing. Of course, other connection structures such as snap structures can also be used for splicing.

[0040] In some embodiments, the back panel 11 of the device housing 1 is provided with a plurality of limiting connecting posts 13, and the sound hood 31 is provided with limiting through holes 311 corresponding to the limiting connecting posts 13. Specifically, at least two limiting connecting posts 13 are provided on the back panel 11 of the device housing 1, and preferably four are provided. The limiting connecting posts 13 fix the relative position of the sound hood 31 in the device housing 1, and prevent shaking that causes the position of the sound hood 31 to shift, thereby reducing the noise reduction effect. Furthermore, in order to limit the movement tendency of the sound hood 31 along the first direction, a thread can be provided at the end of the limiting connecting post 13 and a nut can be used to completely limit the movement of the sound hood 31. In addition, an abutment can be provided on the front panel of the device housing 1. When the device housing 1 is closed, the abutment can press the sound hood 31, so that the position of the sound hood 31 along the first direction is fixed.

[0041] like Figure 6 As shown, in some embodiments, a sound absorbing cover 31 is provided with a docking groove 312 and a docking ridge 313 on both sides along the first direction. The docking grooves 312 and the docking ridges 313 in adjacent sound absorbing covers 31 correspond to each other, so that adjacent sound absorbing covers 31 are spliced and fixed. Specifically, the docking grooves 312 and the docking ridges 313 provided on the sound absorbing covers 31 can make the connection between adjacent sound absorbing covers 31 tighter, reduce gaps, thereby further improving the noise reduction effect of the sound absorbing covers 31 and preventing noise leakage. A plurality of docking ridges 313 and docking grooves 312 can be provided to fully improve the noise reduction effect.

[0042] like Figure 2As shown, in some embodiments, a buffer device 4 is further included, which includes a connecting seat 41 fixedly connected to the equipment housing 1, a connecting frame 42 is provided at the end of the connecting seat 41 away from the equipment housing 1, a limiting ring 43 is provided at the bottom end of the connecting frame 42, and a supporting column 44 is sleeved on the limiting ring 43. A spring 45 is provided between the top of the supporting column 44 and the inner top end of the connecting frame 42, and a buffer grounding pad 46 is provided at the bottom end of the support column 44. The buffer device 4 is used for contact with the ground for buffering to reduce noise when the substation equipment moves.

[0043] Specifically, the support columns can slide in the limiting ring 43, the upper part of the support column 44 is connected to a spring for shock absorption and buffering, and the bottom end is provided with a buffer grounding pad 46, which can fully provide shock absorption and buffering effects and reduce the noise generated by the substation equipment during the transfer process.

[0044] In some embodiments, noise reduction panels are provided on both the front and rear panels 11 of the device housing 1. Specifically, providing noise reduction panels on the front and rear panels 11 of the device housing 1 can further improve the noise reduction range of the substation equipment, making it more difficult for noise to be transmitted outside the device housing 1, thereby fully improving the noise reduction effect and reducing the impact of noise on the surrounding environment and residents.

[0045] In summary, the embodiment of the present invention provides a noise reduction device for substation equipment, which realizes noise protection for the side wall of the equipment housing 1 by setting a first noise reduction component 2 and a second noise reduction component 3, so that the noise generated by the substation equipment can be enclosed in a closed cavity, avoiding the noise from leaking from the side wall of the equipment housing 1 and other places with weak noise reduction function, thereby preventing the noise from leaking out and causing adverse effects on the surrounding environment. The noise reduction effect on the substation equipment is more comprehensive and the noise reduction effect is better.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A noise reduction device for power conversion equipment, comprising an equipment housing, characterized in that: A first noise reduction component and a second noise reduction component are provided in the device housing; The first noise reduction assembly includes a plurality of sound absorbing panel assemblies, the sound absorbing panel assemblies are slidably connected to the device housing along a first direction, and the plurality of sound absorbing panel assemblies are respectively parallel to different side walls of the device housing; The second noise reduction assembly includes a plurality of sound-absorbing covers, each of which has an appearance identical to that of the cavity inside the device housing and is sleeved within the device housing. The plurality of sound-absorbing covers are stacked along a first direction within the device housing, and the sound-absorbing covers are slidably connected to the device housing. The first direction is the direction from the back panel to the front panel of the device housing.

2. The noise reduction device for power conversion equipment according to claim 1, characterized in that: The sound-absorbing panel assembly includes a sliding member and a plurality of sound-absorbing panel members. The sliding member includes a vertical plate and a plug-in plate that are fixedly connected. The vertical plate is fixedly connected to the sound-absorbing panel member, and the plug-in plate is plugged into a plug-in slot provided in the device housing.

3. The noise reduction device for power conversion equipment according to claim 2, characterized in that: The inner wall of the plug-in slot is provided with a first magnetic strip, and the plug-in plate is provided with a second magnetic strip corresponding to the first magnetic strip, and the first magnetic strip and the second magnetic strip are attracted to each other by opposite charges; the slot wall of the plug-in slot is provided with a limiting slot corresponding to the vertical plate.

4. The noise reduction device for power conversion equipment according to claim 3, characterized in that: The sound-absorbing panel comprises a plurality of sound-absorbing strips, and docking posts and docking holes are respectively provided on both sides of the sound-absorbing strips along a first direction. Adjacent sound-absorbing strips are spliced through corresponding docking posts and docking holes to form the sound-absorbing panel.

5. The noise reduction device for power transformation equipment according to claim 1, characterized in that: The back panel of the device shell is provided with a plurality of limiting connecting columns, and the sound-absorbing cover is provided with limiting through holes corresponding to the limiting connecting columns.

6. The noise reduction device for power conversion equipment according to claim 5, characterized in that: The sound absorbing covers are respectively provided with butt joint grooves and butt joint ridges on both sides along the first direction, and the butt joint grooves and butt joint ridges in adjacent sound absorbing covers correspond to each other, so that the adjacent sound absorbing covers are spliced and fixed.

7. The noise reduction device for power conversion equipment according to claim 1, characterized in that: It also includes a buffer device, which includes a connecting seat fixedly connected to the equipment housing, a connecting frame is provided at the end of the connecting seat away from the equipment housing, a limiting ring is provided at the bottom end of the connecting frame, a supporting column is provided on the limiting ring, a spring is provided between the top of the supporting column and the inner top end of the connecting frame, a buffer grounding pad is provided at the bottom end of the support column, and the buffer device is used for contacting and buffering with the ground to reduce noise when the substation equipment moves.

8. The noise reduction device for power conversion equipment according to claim 1, characterized in that: The front panel and the back panel of the equipment shell are both provided with noise reduction panels.

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