A transformer noise reduction cabinet

Abstract

The present invention discloses a transformer noise reduction cabinet, comprising a mounting base, a vibration-damping plate fixedly connected to the top of the mounting base, a transformer body fixedly mounted on the vibration-damping plate by bolts, a soundproof cover fixedly connected to the top of the mounting base, the soundproof cover being arranged on the outside of the transformer body, a water tank fixedly mounted on the bottom of the mounting base, and heat-conducting rods arranged at equal distances fixedly mounted on the bottom of the transformer body. This invention transmits the vibration of the transformer to the coolant inside the water tank through the vibration-damping plate in conjunction with the heat-conducting rod, thereby achieving vibration absorption, shock absorption and noise reduction, and reducing noise generation. In addition, the invention cooperates with the circulating cooling mechanism and the inner cavity inside the soundproof cover to form a noise reduction water curtain, utilizing the refraction and energy loss of sound when passing through different media to reduce noise propagation, thereby improving the noise reduction effect. At the same time, the structure is more compact and simple, easy to install and use, and effectively reduces the risk of fire.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer noise reduction, and more particularly to a transformer noise reduction cabinet. Background Art

[0002] The transformer core is made of stacked silicon steel sheets. When an alternating current flows through the transformer windings, it generates an alternating magnetic flux in the core. Due to the magnetostrictive effect, the core's silicon steel sheets periodically expand and contract as the magnetic flux changes. The frequency of this expansion and contraction is related to the power supply frequency. For example, for a 50Hz power frequency transformer, the vibration frequency caused by magnetostriction is 100Hz (because the magnetic flux is alternating, expanding and contracting twice in one cycle). Different core materials have different magnetostriction coefficients. For example, amorphous alloy cores have a relatively low magnetostriction coefficient, resulting in lower noise levels in transformers compared to traditional silicon steel cores. However, as the magnetic flux density increases, the magnitude of magnetostriction also increases, leading to increased core vibration and noise. Choosing an excessively high magnetic flux density during transformer design can lead to significant noise issues.

[0003] Currently, shock-absorbing pads or dampers are commonly installed between the transformer and the foundation. Shock-absorbing pads can be made of materials such as rubber and springs. For example, rubber shock-absorbing pads installed at the bottom of the transformer can effectively isolate the transmission of transformer vibration to the foundation and surrounding environment, reducing noise transmission. Sound barriers or enclosures, or noise reduction cabinets, are also installed around the transformer. Sound barriers can be made of sound-absorbing materials such as glass wool and rock wool. Sound enclosures enclose the entire transformer and contain sound-absorbing materials. For example, within a substation, a sound enclosure can be installed for noisy transformers to reduce the impact of transformer noise on the surrounding environment.

[0004] However, the current noise reduction cabinet is directly installed on the outside of the transformer and receives high noise intensity, so a thicker composite material is needed to form the cabinet body. At the same time, the sound insulation material has low fire resistance, so it is easy to cause a fire in the event of an electrical spark failure, posing a safety hazard. At the same time, the noise reduction cabinet's isolation effect on the area around the transformer will hinder air circulation, affecting the heat dissipation of the entire device, resulting in a high temperature inside the cabinet space, which is not conducive to the heat dissipation of the transformer. Summary of the Invention

[0005] In view of the problems existing in the background technology, the purpose of the present invention is to provide a transformer noise reduction cabinet.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] A transformer noise reduction cabinet comprises a mounting base, the top of the mounting base is fixedly connected to a vibration-damping plate, a transformer body is fixedly mounted on the vibration-damping plate by bolts, the top of the mounting base is fixedly connected to a soundproof cover, the soundproof cover is arranged on the outside of the transformer body, a water tank is fixedly mounted on the bottom of the mounting base, and heat-conducting rods arranged at equal distances are fixedly mounted on the bottom of the transformer body, the bottom ends of the heat-conducting rods pass through the mounting base and extend to the interior of the water tank and are submerged in the water, a circulating cooling mechanism is installed between the water tank and the soundproof cover, an inner cavity is provided in the interior of the soundproof cover and is communicated with the circulating cooling mechanism and the water tank, and a cooling fan is installed on the back of the soundproof cover.

[0008] As a further description of the above technical solution: the circulating cooling mechanism includes a silent water pump, a spiral heat dissipation pipe and a rectangular water outlet pipe. The silent water pump is fixedly installed on the left side of the water tank. The input end of the silent water pump is connected and fixed to the water tank. The output end of the silent water pump is connected and fixed to the bottom end of the spiral heat dissipation pipe. The top end of the spiral heat dissipation pipe passes through the top of the mounting seat and extends to the right to the top of the sound insulation cover and is connected and fixed to the rectangular water outlet pipe. The bottom of the rectangular water outlet pipe passes through the interior of the inner cavity and is connected and fixed thereto.

[0009] As a further description of the above technical solution: a triangular guide block is fixedly connected to the top of the inner cavity, and the triangular guide block is located directly below the rectangular water outlet pipe.

[0010] As a further description of the above technical solution: an air suction hood is fixedly connected to the left side of the sound insulation cover, the air inlet side of the air suction hood is aligned with the spiral heat dissipation pipe, and an air guide pipe is connected between the air suction hood and the heat dissipation fan.

[0011] As a further description of the above technical solution: a rubber pad is fixedly connected to the top of the inner side of the water tank, and an annular sleeve is fixedly connected to the top of the rubber pad, and the annular sleeve extends upward to the inside of the gap between the heat conducting rod, the water tank and the mounting seat.

[0012] As a further description of the above technical solution: two vertical pipes are fixedly connected to the interior of the mounting base, the bottom ends of the two vertical pipes extend downward to the interior of the water tank, and the top ends of the vertical pipes extend to the interior of the inner cavity.

[0013] As a further description of the above technical solution: a soundproof door panel is hinged on the front of the soundproof cover, and the interior of the soundproof door panel is filled with a noise reduction foam layer.

[0014] As a further description of the above technical solution: two wiring holes are provided on the top of the sound insulation cover, and elastic rubber inner sleeves are provided inside the two wiring holes.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] This solution uses a vibration-absorbing plate in conjunction with a heat-conducting rod to transfer the vibration of the transformer to the coolant inside the water tank, thereby absorbing vibrations, reducing vibration and noise, and reducing noise generation. It also cooperates with the circulating cooling mechanism and the inner cavity inside the soundproof cover to form a noise-reducing water curtain, and utilizes the refraction and energy loss of sound when passing through different media to reduce noise propagation, thereby improving the noise reduction effect. At the same time, the structure is more compact and simple, easy to install and use, and effectively reduces the risk of fire.

[0017] This solution uses a water curtain formed by a heat-conducting rod and a circulating cooling mechanism, as well as a cooling fan, to reduce noise while ensuring the heat dissipation efficiency of the transformer body and the temperature stability of the working environment. At the same time, the water curtain can also isolate the external high temperature in hot weather, forming a relatively independent environmental space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0020] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the middle;

[0021] Figure 4 for Figure 2 A magnified schematic diagram of the structure of part B in the middle;

[0022] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the present invention;

[0023] Figure 6 It is a schematic diagram of a top cross-sectional structure of the present invention.

[0024] Description of the numbers in the figure:

[0025] 1. Mounting base; 2. Anti-vibration plate; 3. Transformer body; 4. Soundproof cover; 41. Air suction cover; 42. Air duct; 5. Water tank; 51. Rubber cushion; 52. Ring sleeve; 6. Heat conduction rod; 7. Circulating cooling mechanism; 71. Silent water pump; 72. Spiral heat pipe; 73. Rectangular water outlet pipe; 8. Inner cavity; 81. Triangular guide block; 9. Cooling fan; 10. Vertical pipe; 11. Soundproof door panel; 111. Noise reduction foam layer; 12. Wiring hole; 121. Elastic rubber inner sleeve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0027] See also Figures 1 to 6In the present invention, a transformer noise reduction cabinet includes a mounting base 1, a vibration-proof plate 2 is fixedly connected to the top of the mounting base 1, a transformer body 3 is fixedly installed on the vibration-proof plate 2 by bolts, a sound insulation cover 4 is fixedly connected to the top of the mounting base 1, and the sound insulation cover 4 is arranged on the outside of the transformer body 3, a water tank 5 is fixedly installed at the bottom of the mounting base 1, and heat-conducting rods 6 arranged at equal distances are fixedly installed at the bottom of the transformer body 3. The bottom ends of the heat-conducting rods 6 pass through the mounting base 1 and extend to the interior of the water tank 5 and are submerged in the water surface. A circulating cooling mechanism 7 is installed between the water tank 5 and the sound insulation cover 4, and an inner cavity 8 is opened inside the sound insulation cover 4 to communicate with the circulating cooling mechanism 7 and the water tank 5. A cooling fan 9 is installed on the back of the sound insulation cover 4.

[0028] In the present invention, the mounting base 1 is used as a mounting support for the device. When the transformer body 3 is running, the vibration generated will be transmitted downward to the coolant inside the water tank 5 through the heat-conducting rod 6 at the bottom, and the vibration-absorbing plate 2 is used to absorb the vibration of the transformer body 3 to reduce the noise generation. At the same time, the circulating cooling mechanism 7 is started to inject the coolant into the inner cavity 8 inside the soundproof cover 4. The water flows along the inner cavity 8 to form a water curtain, which absorbs and weakens the transmitted noise, performs double noise reduction, and reduces the risk of fire.

[0029] At the same time, when the circulating cooling mechanism 7 is working, the sound insulation cover 4 is continuously cooled. At the same time, the heat conducting rod 6 transfers part of the heat of the transformer body 3 to the coolant inside the water tank 5 at night to achieve temperature control of the working space of the transformer body 3, and the water curtain flowing inside the inner cavity 8 forms a heat insulation cover with the sound insulation cover 4 to reduce the interference of the internal and external temperature difference, so that the working environment temperature of the transformer body 3 tends to be stable. At the same time, the heat dissipation fan 9 on the back is used to dissipate heat to the outside to ensure that the heat dissipation and noise reduction of the entire equipment are achieved at the same time, thereby achieving a good noise reduction effect while reducing the risk of fire. At the same time, the weight of the entire structure is reduced, the structure is more compact, and good heat dissipation performance is taken into account. The advantages of forming a water curtain around the transformer for sound insulation and heat insulation solve the problem that the noise cabinet in the prior art is directly installed on the outside of the transformer and receives high noise intensity, so it is necessary to use a thicker composite material to form the cabinet body. At the same time, due to the low fire resistance of the sound insulation material, it is easy to cause a fire in the event of an electrical spark fault, which poses a safety hazard. At the same time, due to the isolation effect of the noise reduction cabinet on the surrounding area of ​​the transformer, it will hinder air circulation, affecting the heat dissipation of the entire device, resulting in a high temperature inside the cabinet space that is not conducive to the heat dissipation of the transformer.

[0030] See also Figure 1 and Figure 2, wherein: the circulating cooling mechanism 7 includes a silent water pump 71, a spiral heat dissipation pipe 72 and a rectangular water outlet pipe 73. The silent water pump 71 is fixedly installed to the left side of the water tank 5. The input end of the silent water pump 71 is connected and fixed to the water tank 5. The output end of the silent water pump 71 is connected and fixed to the bottom end of the spiral heat dissipation pipe 72. The top end of the spiral heat dissipation pipe 72 passes through the top of the mounting base 1 and extends to the right to the top of the sound insulation cover 4 and is connected and fixed to the rectangular water outlet pipe 73. The bottom of the rectangular water outlet pipe 73 passes through the interior of the inner cavity 8 and is connected and fixed thereto.

[0031] In the present invention, by starting the silent water pump 71, the coolant inside the water tank 5 is driven to flow upward through the spiral heat dissipation tube 72 and into the interior of the inner cavity 8 through the rectangular water outlet pipe 73, forming a water curtain that flows downward evenly along the inner cavity 8, so that the propagation medium of the sound insulation cover 4 is changed, forming three propagation paths of solid, liquid and gaseous states, which fully absorbs and refracts the noise, and has a better effect.

[0032] See also Figure 4 , wherein: a triangular guide block 81 is fixedly connected to the top of the inner cavity 8, and the triangular guide block 81 is located directly below the rectangular water outlet pipe 73.

[0033] In the present invention, the triangular guide block 81 allows the coolant flowing out of the rectangular water outlet pipe 73 to be more evenly distributed to the surroundings.

[0034] See also Figure 1 、 Figure 2 and Figure 6 , wherein: the left side of the sound insulation cover 4 is fixedly connected to the air suction cover 41, the air inlet side of the air suction cover 41 is aligned with the spiral heat dissipation pipe 72, and an air guide pipe 42 is connected between the air suction cover 41 and the heat dissipation fan 9.

[0035] In the present invention, the cooling fan 9 is connected to the air duct 42 through the air suction hood 41. When the cooling fan 9 is working, the air suction hood 41 absorbs the air around the spiral cooling tube 72 to make it flow, thereby improving the heat dissipation efficiency of the spiral cooling tube 72, reducing the coolant temperature, and enabling the device to continue to work effectively.

[0036] See also Figure 2 and Figure 5 , wherein: a rubber pad 51 is fixedly connected to the top of the inner side of the water tank 5, an annular sleeve 52 is fixedly connected to the top of the rubber pad 51, and the annular sleeve 52 extends upward to the inside of the gap between the heat conducting rod 6 and the water tank 5 and the mounting seat 1.

[0037] In the present invention, the rubber pad layer 51 and the annular sleeve 52 provide soft contact isolation between the heat conducting rod 6, the water tank 5 and the mounting base 1, thereby effectively reducing the transmission of vibration and improving the noise reduction effect.

[0038] See also Figure 3, wherein: two vertical pipes 10 are fixedly connected to the inside of the mounting base 1, the bottom ends of the two vertical pipes 10 extend downward to the inside of the water tank 5, and the top ends of the vertical pipes 10 extend to the inside of the inner cavity 8.

[0039] In the present invention, the water flow inside the inner cavity 8 can smoothly flow back to the inside of the water tank 5 through the vertical pipe 10 to achieve circulation.

[0040] See also Figure 1 and Figure 6 , wherein: a soundproof door panel 11 is hinged on the front of the soundproof cover 4, and the interior of the soundproof door panel 11 is filled with a noise reduction foam layer 111.

[0041] In the present invention, the sound insulation door panel 11 is combined with the noise reduction foam layer 111 to effectively reduce and insulate noise in the door opening direction, while making it convenient to open the sound insulation cover 4 for inspection and maintenance.

[0042] See also Figure 1 and Figure 2 , wherein: two wiring holes 12 are opened on the top of the sound insulation cover 4, and elastic rubber inner bushings 121 are provided inside the two wiring holes 12.

[0043] In the present invention, the wiring holes 12 are used to facilitate wiring, and the elastic rubber inner bushing 121 can clamp the wiring harness to stabilize it while reducing noise leakage from the device.

[0044] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A transformer noise reduction cabinet, comprising a mounting base (1), characterized in that: The top of the mounting seat (1) is fixedly connected to a vibration-proof plate (2), a transformer body (3) is fixedly mounted on the vibration-proof plate (2) by bolts, the top of the mounting seat (1) is fixedly connected to a soundproof cover (4), the soundproof cover (4) is arranged on the outside of the transformer body (3), the bottom of the mounting seat (1) is fixedly mounted to a water tank (5), the bottom of the transformer body (3) is fixedly mounted to heat-conducting rods (6) arranged at equal distances, the bottom ends of the heat-conducting rods (6) pass through the mounting seat (1) and extend to the inside of the water tank (5) and are submerged in the water, a circulating cooling mechanism (7) is installed between the water tank (5) and the soundproof cover (4), an inner cavity (8) is provided inside the soundproof cover (4) and is in communication with the circulating cooling mechanism (7) and the water tank (5), and a cooling fan (9) is installed on the back of the soundproof cover (4); The circulating cooling mechanism (7) includes a silent water pump (71), a spiral heat dissipation pipe (72) and a rectangular water outlet pipe (73), wherein the silent water pump (71) is fixedly mounted on the left side of the water tank (5), the input end of the silent water pump (71) is connected and fixed to the water tank (5), the output end of the silent water pump (71) is connected and fixed to the bottom end of the spiral heat dissipation pipe (72), the top end of the spiral heat dissipation pipe (72) passes through the top of the mounting seat (1) and extends to the right to the top of the soundproof cover (4) and is connected and fixed to the rectangular water outlet pipe (73), and the bottom end of the rectangular water outlet pipe (73) passes through the interior of the inner cavity (8) and is connected and fixed thereto; A triangular guide block (81) is fixedly connected to the top of the inner cavity (8), and the triangular guide block (81) is located directly below the rectangular water outlet pipe (73).

2. The transformer noise reduction cabinet according to claim 1, characterized in that: An air suction cover (41) is fixedly connected to the left side of the soundproof cover (4), the air inlet side of the air suction cover (41) is aligned with the spiral heat dissipation pipe (72), and an air guide pipe (42) is connected between the air suction cover (41) and the heat dissipation fan (9).

3. The transformer noise reduction cabinet according to claim 1, characterized in that: A rubber pad (51) is fixedly connected to the top of the inner side of the water tank (5), and an annular sleeve (52) is fixedly connected to the top of the rubber pad (51). The annular sleeve (52) extends upward to the inside of the gap between the heat conducting rod (6), the water tank (5) and the mounting seat (1).

4. The transformer noise reduction cabinet according to claim 1, characterized in that: Two vertical pipes (10) are fixedly connected to the interior of the mounting base (1), the bottom ends of the two vertical pipes (10) extend downward to the interior of the water tank (5), and the top ends of the vertical pipes (10) extend to the interior of the inner cavity (8).

5. The transformer noise reduction cabinet according to claim 1, characterized in that: A soundproof door panel (11) is hingedly connected to the front of the soundproof cover (4), and the interior of the soundproof door panel (11) is filled with a noise reduction foam layer (111).

6. The transformer noise reduction cabinet according to claim 1, characterized in that: Two wiring holes (12) are provided on the top of the soundproof cover (4), and elastic rubber inner bushings (121) are provided inside the two wiring holes (12).

Images