Noise reduction structure for half-indoor main transformer chamber of transformer substation

Abstract

The utility model discloses a transformer station semi-indoor main transformer chamber noise reduction structure comprising a main transformer chamber main body, the top of the main transformer chamber main body is provided with a hollow ventilation opening, an installation frame is arranged above the hollow ventilation opening, a bearing frame is arranged below the hollow ventilation opening, a well field type silencer assembly is arranged in the hollow ventilation opening, and the well field type silencer assembly is arranged in the hollow ventilation opening. The noise reduction structure comprises a main transformer chamber body, a shutter is arranged on one side of the main transformer chamber body, a sound absorption wall body is arranged on the inner side of the main transformer chamber body, expansion bolts are arranged between the sound absorption wall body and the main transformer chamber body, and the sound absorption wall body and the main transformer chamber body are connected through the expansion bolts. A natural air inlet and natural air exhaust mode is adopted, an exhaust fan does not need to be installed, a well field type silencer is installed in a hollow ventilation opening, a sound absorption wall is flatly laid on the surface of the main transformer chamber, reflection of noise and penetration of low and medium frequency noise are reduced through the well field type silencer and the sound absorption wall, and the noise reduction effect of the main transformer chamber is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to substation technical field, concretely is substation semi -indoor main transformer room noise reduction structure. BACKGROUND

[0002] The noise generated in the operation process of the transformer includes equipment body noise and reverberation noise. The noise of the transformer produced by different equipment manufacturers is slightly different, and is generally about 70dB (A). Such noise belongs to medium-low frequency noise, has strong penetration, long propagation distance and slow attenuation, and causes certain influence on the surrounding sound environment. With the improvement of human living conditions, the requirement for sound environment is higher and higher. Therefore, the influence of noise is considered in the feasibility study stage of the project, and corresponding measures are matched to manage noise.

[0003] The existing indoor substation adopts natural air inlet forced exhaust measures, installs an exhaust fan at the top, generates a large amount of noise when the exhaust fan operates, needs to carry out noise reduction treatment on the fan room, increases the use cost, the exhaust fan operation generates energy consumption, and needs to be maintained and repaired, and cannot meet the use requirement. UTILITY MODEL CONTENT

[0004] The utility model discloses a substation semi -indoor main transformer room noise reduction structure to solve the above -mentioned background art that the existing indoor substation adopts natural air inlet forced exhaust measures, installs an exhaust fan at the top, generates a large amount of noise when the exhaust fan operates, needs to carry out noise reduction treatment on the fan room, increases the use cost, the exhaust fan operation generates energy consumption, and needs to be maintained and repaired, and cannot meet the use requirement problem.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme: substation semi -indoor main transformer room noise reduction structure, including the main transformer room main part, the top of main transformer room main part is provided with the openwork vent, the upper side of openwork vent is provided with the mounting frame, and mounting frame is fixedly connected with main transformer room main part, the lower side of openwork vent is provided with the bearing frame, and bearing frame is provided with at least six, and bearing frame is equidistantly arranged below openwork vent, bearing frame is fixedly connected with main transformer room main part, and bearing frame is arranged in U type, the inside of openwork vent is provided with the well field type silencer assembly, and the lower end of well field type silencer assembly is in contact with bearing frame, one side of main transformer room main part is provided with the louver, and louver is integrally connected with main transformer room main part, the inside of main transformer room main part is provided with the sound absorption wall, and the sound absorption wall is provided with the expansion bolt between main transformer room main part, and the sound absorption wall is connected through expansion bolt between main transformer room main part.

[0006] Preferably, the mine field type silencer assembly comprises a first metal aluminum perforated plate, a first glass cloth, first centrifugal glass wool, a second glass cloth and a second metal aluminum perforated plate, the first glass cloth and the second glass cloth are arranged on the two sides of the first centrifugal glass wool respectively, the outer sides of the first glass cloth and the second glass cloth are provided with the first metal aluminum perforated plate and the second metal aluminum perforated plate respectively, and the first metal aluminum perforated plate, the first glass cloth, the first centrifugal glass wool, the second glass cloth and the second metal aluminum perforated plate are pressed into an integrated body.

[0007] Preferably, the shutter comprises a silencer shell, a silencer sheet, a silencer shell panel and a shutter, the silencer shell panel is fixedly connected with the silencer shell, the shutter is arranged on the inner side of the silencer shell panel, and the shutter and the silencer shell panel are rotatably connected through a hinge, the silencer sheet is arranged in the interior of the silencer shell and connected with the silencer shell through a screw, and the silencer sheet is arranged on one side of the shutter.

[0008] Preferably, the sound-absorbing wall comprises a third metal aluminum perforated plate, a third glass cloth, second centrifugal glass wool, a metal fiber plate and a keel, the metal fiber plate is arranged on the outer side of the keel, the second centrifugal glass wool is arranged on the outer side of the metal fiber plate, the third glass cloth is arranged on the outer side of the second centrifugal glass wool, and the third metal aluminum perforated plate is arranged on the outer side of the third glass cloth, and the third metal aluminum perforated plate, the third glass cloth, the second centrifugal glass wool, the metal fiber plate and the keel are pressed into an integrated body.

[0009] Preferably, the mounting frame is provided with an insect screen above, and the insect screen is connected with the mounting frame through a screw.

[0010] Preferably, the thickness of the mine field type silencer assembly and the sound-absorbing wall is not less than 100 mm.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. The utility model discloses a mine field type silencer assembly, an insect screen, a hollow ventilation opening and a bearing frame are arranged, the hollow ventilation opening enables the indoor and outdoor air in the main transformer room to circulate quickly, adopts a natural air inlet and natural air outlet form, the transformer needs to be overhauled in the later period, can be removed from the top, the transformer or the part needing to be maintained is hoisted out from the hollow ventilation opening, the mine field type silencer assembly is installed in the interior of the hollow ventilation opening, the mine field type silencer assembly is composed of a first metal aluminum perforated plate, a first glass cloth, first centrifugal glass wool, a second glass cloth and a second metal aluminum perforated plate, the mine field type silencer assembly has good silencing performance, reduces indoor noise, simultaneously reduces the influence of noise on the surrounding sound environment, the silencing amount of the silencer is proportional to the length of the silencing section, according to the silencing amount demand, different silencing section lengths can be selected.

[0013] 2. The utility model discloses a device through the setting of louver and sound absorption wall, and the sound absorption wall is composed of third metal aluminum perforated plate, third glass fiber cloth, second centrifugal glass wool, metal fiber plate and keel combination, so that the sound absorption wall has good sound absorption performance and waterproof performance, reduces the reflection of noise and the penetration of medium and low frequency noise, increases the area of louver and is provided with sound absorption structure in the inside, and also can play the function of reducing noise. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the bearing frame and main transformer room main body connecting structure diagram of the utility model;

[0016] Figure 3 It is the main view of the coalfield type silencer assembly of the utility model;

[0017] Figure 4 It is the structure diagram of the coalfield type silencer assembly of the utility model;

[0018] Figure 5 It is the sound absorption wall and main transformer room main body connecting structure diagram of the utility model;

[0019] Figure 6 It is the louver sectional view of the utility model;

[0020] Figure 7 It is the Figure 5 A area local enlarged view of the utility model.

[0021] In the drawing: 1, main transformer room main body, 2, louver, 3, installation frame, 4, coalfield type silencer assembly, 5, insect screen, 6, openwork vent, 7, bearing frame, 8, first metal aluminum perforated plate, 9, first glass fiber cloth, 10, first centrifugal glass wool, 11, second glass fiber cloth, 12, second metal aluminum perforated plate, 13, sound absorption wall, 14, expansion bolt, 15, silencer shell, 16, sound absorption sheet, 17, silencer shell panel, 18, louver, 19, third metal aluminum perforated plate, 20, third glass fiber cloth, 21, second centrifugal glass wool, 22, metal fiber plate, 23, keel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-7The utility model provides a kind of embodiment: substation semi indoor main transformer room noise reduction structure, including main transformer room main body 1, the top of main transformer room main body 1 is provided with openwork vent 6, the top of openwork vent 6 is provided with mounting frame 3, and mounting frame 3 is fixedly connected with main transformer room main body 1, the lower portion of openwork vent 6 is provided with bearing frame 7, bearing frame 7 is provided with at least six, and bearing frame 7 is equidistantly arranged below openwork vent 6, bearing frame 7 is fixedly connected with main transformer room main body 1, and bearing frame 7 is arranged in U type, the inside of openwork vent 6 is provided with well field muffler assembly 4, and the lower end of well field muffler assembly 4 is in contact with bearing frame 7, one side of main transformer room main body 1 is provided with louver 2, and louver 2 is integrated with main transformer room main body 1, the inside of main transformer room main body 1 is provided with sound absorption wall 13, and expansion bolt 14 is arranged between sound absorption wall 13 and main transformer room main body 1, and sound absorption wall 13 and main transformer room main body 1 are connected by expansion bolt 14.

[0024] Use: in the top of main transformer room main body 1 openwork vent 6 is reserved, adopt natural air intake natural exhaust form, later transformer needs to overhaul can be removed from the top, hoist out the transformer or component needing to be repaired from openwork vent 6, hoist and install the module of well field muffler assembly 4 in openwork vent 6 in proper order, pass through well field muffler assembly 4 to carry out sound attenuation treatment to the noise of openwork vent 6, use expansion bolt 14 to lay sound absorption wall 13 in the surface of main transformer room main body 1 in proper order, form sound absorption layer on the surface of main transformer room main body 1, reduce the reflection of noise and the penetration of middle-low frequency noise by sound absorption wall 13, reduce indoor noise, reduce the influence of noise on surrounding sound environment simultaneously, increase the area of louver 2 and be provided with sound attenuation structure inside, which can also play the function of reducing noise.

[0025] Please refer to Figure 1 And Figure 4 Well field muffler assembly 4 includes first metal aluminum perforated plate 8, first glass fiber cloth 9, first centrifugal glass wool 10, second glass fiber cloth 11 and second metal aluminum perforated plate 12, first glass fiber cloth 9 and second glass fiber cloth 11 are arranged at the two sides of first centrifugal glass wool 10 respectively, the outside of first glass fiber cloth 9 and second glass fiber cloth 11 is provided with first metal aluminum perforated plate 8 and second metal aluminum perforated plate 12 respectively, and first metal aluminum perforated plate 8, first glass fiber cloth 9, first centrifugal glass wool 10, second glass fiber cloth 11 and second metal aluminum perforated plate 12 are pressed into one.

[0026] Please refer to Figure 1 And Figure 6The blind 2 comprises a silencer shell 15, a silencer sheet 16, a silencer shell panel 17 and a blind 18, the silencer shell panel 17 is fixedly connected with the silencer shell 15, the blind 18 is arranged on the inner side of the silencer shell panel 17, and the blind 18 is rotatably connected with the silencer shell panel 17 through a hinge, the silencer sheet 16 is arranged in the interior of the silencer shell 15, and the silencer sheet 16 is connected with the silencer shell 15 through a screw, and the silencer sheet 16 is arranged on one side of the blind 18.

[0027] Please refer to Figure 5 and Figure 7 The sound-absorbing wall 13 comprises a third metal aluminum perforated plate 19, a third glass fiber cloth 20, a second centrifugal glass wool 21, a metal fiber plate 22 and a keel 23, the metal fiber plate 22 is arranged on the outer side of the keel 23, the second centrifugal glass wool 21 is arranged on the outer side of the metal fiber plate 22, the third glass fiber cloth 20 is arranged on the outer side of the second centrifugal glass wool 21, the third metal aluminum perforated plate 19 is arranged on the outer side of the third glass fiber cloth 20, and the third metal aluminum perforated plate 19, the third glass fiber cloth 20, the second centrifugal glass wool 21, the metal fiber plate 22 and the keel 23 are integrally pressed.

[0028] Please refer to Figure 1 The upper side of the mounting frame 3 is provided with an insect screen 5, and the insect screen 5 is connected with the mounting frame 3 through a screw, the thickness of the well field type silencer assembly 4 and the sound-absorbing wall 13 is not less than 100 mm, and the insect screen 5 can avoid insects and birds from entering the main transformer room body 1 through the hollow ventilation opening 6.

[0029] Working principle: a hollow ventilation opening 6 is reserved on the top of the main transformer room body 1, a natural air inlet and natural air exhaust form is adopted, when the transformer needs to be overhauled, the transformer or the parts needing to be repaired can be removed from the top, the modules of the well field type silencer assembly 4 are sequentially hoisted and installed into the hollow ventilation opening 6, the noise of the hollow ventilation opening 6 is processed through the well field type silencer assembly 4, the sound-absorbing wall 13 is sequentially laid on the surface of the main transformer room body 1 through the expansion bolts 14, a sound-absorbing layer is formed on the surface of the main transformer room body 1, the reflection of the noise and the penetration of the middle and low frequency noise are reduced through the sound-absorbing wall 13, the indoor noise is reduced, the influence of the noise on the surrounding sound environment is reduced, the area of the blind 2 is increased, and the internal sound-absorbing structure can also play a noise reduction function.

[0030] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A noise reduction structure for a semi-indoor main transformer room in a substation, comprising the main transformer room body (1), characterized in that: The main transformer room body (1) has a perforated ventilation opening (6) at its top. A mounting frame (3) is positioned above the perforated ventilation opening (6) and is fixedly connected to the main transformer room body (1). A load-bearing frame (7) is positioned below the perforated ventilation opening (6). At least six load-bearing frames (7) are provided, equidistantly spaced below the perforated ventilation opening (6). The load-bearing frames (7) are fixedly connected to the main transformer room body (1) and are U-shaped. The interior of the perforated ventilation opening (6)... The main transformer room is equipped with a well-field type silencer assembly (4), and the lower end of the well-field type silencer assembly (4) is in contact with the load-bearing frame (7). A louver (2) is provided on one side of the main transformer room body (1), and the louver (2) is connected to the main transformer room body (1) as a whole. A sound-absorbing wall (13) is provided on the inner side of the main transformer room body (1). An expansion bolt (14) is provided between the sound-absorbing wall (13) and the main transformer room body (1), and the sound-absorbing wall (13) and the main transformer room body (1) are connected by the expansion bolt (14).

2. The noise reduction structure for the semi-indoor main transformer room of a substation according to claim 1, characterized in that: The well-field type silencer assembly (4) includes a first perforated aluminum plate (8), a first fiberglass cloth (9), a first centrifugal glass wool (10), a second fiberglass cloth (11), and a second perforated aluminum plate (12). The first fiberglass cloth (9) and the second fiberglass cloth (11) are respectively disposed on both sides of the first centrifugal glass wool (10). The first perforated aluminum plate (8) and the second perforated aluminum plate (12) are respectively disposed on the outer sides of the first fiberglass cloth (9) and the second fiberglass cloth (11). The first perforated aluminum plate (8), the first fiberglass cloth (9), the first centrifugal glass wool (10), the second fiberglass cloth (11), and the second perforated aluminum plate (12) are pressed together as one piece.

3. The noise reduction structure for the semi-indoor main transformer room of a substation according to claim 1, characterized in that: The louver (2) includes a muffler housing (15), a sound-absorbing plate (16), a muffler housing panel (17), and a louver (18). The muffler housing panel (17) is fixedly connected to the muffler housing (15). The louver (18) is located inside the muffler housing panel (17) and is rotatably connected to the muffler housing panel (17) by a hinge. The sound-absorbing plate (16) is located inside the muffler housing (15) and is connected to the muffler housing (15) by screws. The sound-absorbing plate (16) is located on one side of the louver (18).

4. The noise reduction structure for the semi-indoor main transformer room of a substation according to claim 1, characterized in that: The sound-absorbing wall (13) includes a third perforated aluminum plate (19), a third fiberglass cloth (20), a second centrifugal glass wool (21), a metal fiberboard (22), and a keel (23). The metal fiberboard (22) is located on the outside of the keel (23), the second centrifugal glass wool (21) is located on the outside of the metal fiberboard (22), the third fiberglass cloth (20) is located on the outside of the second centrifugal glass wool (21), and the third perforated aluminum plate (19) is located on the outside of the third fiberglass cloth (20). The third perforated aluminum plate (19), the third fiberglass cloth (20), the second centrifugal glass wool (21), the metal fiberboard (22), and the keel (23) are pressed together as one unit.

5. The noise reduction structure for the semi-indoor main transformer room of a substation according to claim 1, characterized in that: An insect-proof net (5) is provided above the mounting frame (3), and the insect-proof net (5) is connected to the mounting frame (3) by screws.

6. The noise reduction structure for the semi-indoor main transformer room of a substation according to claim 1, characterized in that: The thickness of the well-field type silencer assembly (4) and the sound-absorbing wall (13) is not less than 100mm.

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