CN108022734B - Movable noise reduction device for main transformer in transformer substation - Google Patents
Movable noise reduction device for main transformer in transformer substation Download PDFInfo
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- CN108022734B CN108022734B CN201711338392.2A CN201711338392A CN108022734B CN 108022734 B CN108022734 B CN 108022734B CN 201711338392 A CN201711338392 A CN 201711338392A CN 108022734 B CN108022734 B CN 108022734B
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- transformer
- driving motor
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- transformer substation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
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Abstract
The invention is used for the movable noise reduction device of the main transformer in the transformer substation, through setting up the double-deck resonance acoustic baffle (6) on the support frame of the outside of the main transformer (12), have reduced noise of the main transformer, etc. effectively, has played the significance to the noise control of the transformer substation, the invention has simple in construction, easy to operate, etc. characteristic, have certain economic benefits, suitable for popularizing and applying on a large scale.
Description
Technical Field
The invention relates to a movable noise reduction device, in particular to a movable noise reduction device for a main transformer in a transformer substation.
Background
As known, with increasing importance of the country and the public on environmental protection, the noise of the transformer substation is paid more attention to, disputes and complaints caused by noise disturbance of the transformer substation occur in 2016, 7 months, and surrounding residents complain the noise to a central environmental protection supervision group due to the fact that the noise of 110kV ridge-sea of Zheng state exceeds standard, and the central environmental protection supervision group commits Zheng state power supply companies to finish the noise treatment of the transformer substation in a limited period of one month after verification. Also in 2016, the Xinyang power supply company 110kV mountain becomes subject to multiple complaints from surrounding residents due to noise problems.
According to statistics, noise exceeding phenomenon is common due to the fact that the urban transformer substation is close to residential areas, requirements on sound function areas are high, design is compact, and the noise exceeding rate of the urban transformer substation of Hunan corporation is 44.8%. In the noise monitoring of the power company in Henan province of the city in 2016, the phenomenon that the noise of the factory boundary exceeds the standard, such as Zhou Kou kV central change, economic source 220kV tiger-ling change, luoyang 110kV towing factory change, commercial dome 220kV commercial dome change, south yang 110kV Jian xi change, and peace mountain 110kV Guangming change, exists objectively. The noise exceeding and disturbing people of the transformer substation become the main environmental protection problem of the current transformer substation, and the problem needs to be solved.
The main transformer is one of the common devices in the transformer substation, and the noise generated by the main transformer is not ignored, so that the development of the movable noise reduction device for the main transformer in the transformer substation has great significance for the noise control of the transformer substation.
Disclosure of Invention
In order to overcome the defects in the background art, the invention provides the movable noise reduction device for the main transformer in the transformer substation.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
a movable noise reduction device for a main transformer in a transformer substation comprises an upper bracket, a folding framework, sliding ways, travelling wheels, back buckling wheels, double-layer resonance sound absorption plates, lower brackets, universal wheels, supporting blocks, driving motors and a protective cover, wherein the sliding ways are arranged in two, the two sliding ways are arranged at intervals and are arranged in parallel, a plurality of lower brackets are respectively arranged below the two sliding ways at intervals, the lower end of each lower bracket is respectively provided with the universal wheels, at least two connecting rods are arranged between the adjacent lower brackets arranged below each sliding way, a supporting frame is formed by inclined support between the two connecting rods, a double-layer resonance sound absorption plate is respectively arranged on the outer side surface or the inner side surface and the outer side surface of the supporting frame, a plurality of supporting blocks are respectively arranged above the two sliding ways, travelling wheels are respectively arranged on two sides of the upper end of each supporting block, springs are respectively arranged between the two travelling wheels, the outer side surfaces of the two travelling wheels are contacted with the travelling faces of the sliding ways, the back buckling wheels are respectively arranged on the side walls of the supporting blocks below the travelling wheels, the two sliding wheels are reversely buckled below the travelling faces of the sliding ways, springs are respectively arranged at the upper ends of the supporting blocks, the upper ends of the sliding blocks are respectively, the two groups of the sliding wheels are respectively connected with the upper brackets, the two driving motor are correspondingly arranged at the two ends of the two driving shafts, the two driving shafts are respectively connected with the two driving shafts through the two driving shafts, the two driving shafts are respectively arranged at the two end frames, the two driving shafts are respectively connected with the two ends of the corresponding driving shafts are connected with the two ends, and the two driving shafts are respectively, and the two ends of the driving shafts are respectively and connected with the two ends, and the two driving shafts, and the driving motor. The control module is connected with a rainfall sensor arranged at the top end of the movable framework through a line to form the movable noise reduction device for the main transformer in the transformer substation.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that an inner layer of the protective cover is provided with an artificial synthetic organic fiber material.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that the synthetic organic fiber material is any one of glass wool, mineral wool or rock wool.
According to the movable noise reduction device for the main transformer in the transformer substation, the double-layer resonance sound absorption plate is formed by adding one layer of resonance sound absorption plate with the same specification on the basis of the single-layer resonance sound absorption plate.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that the slideway is I-shaped steel.
The specification of the I-steel is 10# or 12#.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that the motor base is fixed on the inner side surface of the supporting block through bolts, and a driving motor is arranged on the motor base.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that the driving motor is a servo motor.
The movable noise reduction device for the main transformer in the transformer substation is characterized in that a limit sensor is arranged at the end part of the slideway and is connected with the control module through a circuit.
By adopting the technical scheme, the invention has the following advantages:
the double-layer resonance sound absorbing plate is movably arranged on the outer side of the main transformer, so that the noise and the like of the main transformer are effectively reduced, the method plays an important role in noise control of the transformer substation, has the characteristics of simple structure, convenience in operation and the like, has certain economic benefit, and is suitable for popularization and application in a large range.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged partial schematic view of the present invention;
FIG. 3 is a schematic illustration of the application of the present invention;
in the figure: 1. an upper bracket; 2. folding the framework; 3. a slideway; 4. a walking wheel; 5. a reverse buckling wheel; 6. double-deck resonance acoustic board; 7. a lower bracket; 8. a diagonal support; 9. a connecting rod; 10. a universal wheel; 11. a spring; 12. a support block; 13. a motor base; 14. a driving motor; 15. a protective cover; 16. and a main transformer.
Detailed Description
The present invention will be explained in more detail by the following examples, which are not intended to limit the scope of the invention;
the movable noise reduction device for the main transformer in the transformer substation comprises an upper bracket 1, a folding framework 2, sliding ways 3, travelling wheels 4, a reverse buckling wheel 5, double-layer resonance sound absorption plates 6, lower brackets 7, universal wheels 10, supporting blocks 12, a driving motor 14 and a protective cover 15, wherein the sliding ways 3 are I-shaped steel, the specification of the I-shaped steel is 10# or 12#, the sliding ways 3 are two, the two sliding ways 3 are arranged at intervals and in parallel, a plurality of lower brackets 7 are respectively arranged below the two sliding ways 3 at intervals, the lower end of each lower bracket 7 is respectively provided with a universal wheel 10, at least two connecting rods 9 are arranged between the adjacent lower brackets 7 arranged below each sliding way 3, a diagonal brace 8 is arranged between the two connecting rods 9 to form a supporting frame, the double-layer resonance sound absorption plates 6 are respectively arranged on the outer side surface or the inner side surface and the outer side surface of the supporting frame, and the double-layer resonance sound absorption plates 6 are formed by adding a layer of the same resonance plate with the same specification on the basis of the single-layer resonance sound absorption plates;
further, a plurality of supporting blocks 12 are respectively arranged above the two sliding ways 3, two sides of the upper end of each supporting block 12 are respectively provided with a traveling wheel 4, a spring 11 is arranged between the two traveling wheels 4, the outer circular surfaces of the two traveling wheels 4 are contacted with the upper surface of the traveling faces of the sliding ways 3, the side walls of the supporting blocks 12 below each traveling wheel 4 are respectively provided with a reverse buckling wheel 5, the reverse buckling wheels 5 are reversely buckled below the traveling faces of the sliding ways 3, the upper ends of the supporting blocks 12 are provided with the springs 11, the springs 11 are connected with an upper bracket 1, the upper end of the upper bracket 1 is provided with a cross rod, the two ends of the cross rod are respectively connected with the upper ends of the upper bracket 1 which is arranged on the two sliding ways 3 in a one-to-one correspondence manner to form a plurality of movable frameworks, a plurality of folding frameworks 2 are respectively arranged between every two adjacent movable frameworks, the outer surfaces of the movable frameworks are covered with a protective cover 15, and the inner layer of the protective cover 15 is provided with an artificially synthesized organic fiber material which is any one of glass cotton or mineral wool or rock wool;
further, the power input shafts of the inner walking wheels 4 arranged at the lower end of the first group of movable frameworks are respectively connected with the driving motor 14 through the motor base 13, the power output shafts of the two driving motors 14 are respectively connected with the power input shafts of the walking wheels 4 through the couplings, the two driving motors 14 are connected with the control module through the circuit, and the control module is connected with the rainfall sensor arranged at the top end of the movable frameworks through the circuit to form the movable noise reduction device for the main transformer in the transformer substation.
The motor base 13 is fixed on the inner side surface of the supporting block 12 through bolts, a driving motor 14 is arranged on the motor base 13, and the driving motor 14 is a servo motor;
further, in order to improve the operation stability, a limit sensor is arranged at the end part of the slideway 3, and the limit sensor is connected with the control module through a circuit.
In particular use of the present invention, the noise reducer of the present invention is disposed about the periphery of the main transformer 16, wherein the double-layer resonant panel 6 absorbs a substantial portion of the noise. Further, when the rainfall sensor arranged at the top end of the movable framework senses rainfall, the control module starts the driving motor 14, the driving motor 14 drives the first group of movable frameworks to move forwards, the first group of movable frameworks are driven to move along with the first group of movable frameworks, when the first group of movable frameworks move to a preset position, the first group of movable frameworks contact the limit sensor arranged on the slideway 3, the limit sensor transmits signals to the control module, the control module closes the driving motor 14, and at the moment, the main transformer 16 is covered.
The invention can effectively reduce the noise generated by the main transformer 16 and has great significance for transformer substation noise reduction.
It should be noted that the resonance sound absorption principle is to use the helmholtz resonator principle to consume the acoustic energy of the sound wave by resonating with the low-frequency sound wave, that is, when the frequency of the incident sound wave is equal to the natural frequency of the sound absorption structure, resonance occurs, and the speed of air vibration in the neck tube reaches the maximum value. When the frequency of the incident sound wave deviates from the resonance frequency, the vibration velocity gradually decreases accordingly, and the sound energy Wa due to the frictional loss is proportional to the square of the vibration velocity, which can be expressed as: wa= RaU2, the larger the vibration velocity, the larger the consumed acoustic energy, and the maximum vibration velocity at resonance, and thus the maximum sound absorption coefficient thereof, for the acoustic resistance. Many factors such as pore size, distribution mode, arrangement density of resonance structure can all influence the sound absorption effect of structure.
The double resonance sound absorption is to add a layer of resonance material with the same specification on the basis of a single layer of resonance material to form a double resonance cavity, and the first resonance cavity is used as a coupling element of two resonators. In the test, the high-frequency performance of the double-resonance sound absorption material is kept unchanged, and the double-resonance sound absorption material can move to the low frequency by 2/3-1.5 octaves on the basis of the original sound absorption coefficient curve. And thus has important significance for low-frequency noise reduction.
The invention is not described in detail in the prior art.
The embodiments selected herein for the purposes of disclosing the present invention are presently considered to be suitable, but it is to be understood that the present invention is intended to include all variations and modifications of the embodiments falling within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a portable noise reduction device for main transformer in transformer substation, includes upper bracket (1), folding skeleton (2), slide (3), walking wheel (4), back-up pulley (5), double-deck resonance acoustic baffle (6), lower carriage (7), universal wheel (10), supporting shoe (12), driving motor (14) and protection casing (15), characterized by: the two slide ways (3) are arranged in two, the two slide ways (3) are arranged at intervals and in parallel, a plurality of lower brackets (7) are arranged below the two slide ways (3) at intervals respectively, universal wheels (10) are arranged at the lower end of each lower bracket (7) respectively, at least two connecting rods (9) are arranged between the adjacent lower brackets (7) arranged below each slide way (3), a support frame is formed by inclined struts (8) arranged between the two connecting rods (9), double-layer resonance sound absorbing plates (6) are respectively arranged on the outer side surface or the inner side surface or the outer side surface of the support frame, the double-layer resonance sound absorbing plates (6) are formed by adding one-layer resonance sound absorbing plates with the same specification on the basis of single-layer resonance sound absorbing plates, a plurality of supporting blocks (12) are respectively arranged above the two slide ways (3), travelling wheels (4) are respectively arranged at two sides of the upper end of each supporting block (12), springs (11) are respectively arranged between the two travelling wheels (4), the outer circular surfaces of the two travelling wheels (4) are contacted with the upper surfaces of the travelling surfaces of the slide ways (3), the side surfaces of the travelling wheels (4) are respectively provided with the opposite buckling springs (11), the side surfaces (11) are respectively arranged on the supporting blocks (5), the upper end of upper bracket (1) is equipped with the horizontal pole, the upper end of upper bracket (1) that sets up one-to-one on two slide ways (3) is connected respectively to the both ends of horizontal pole forms multiunit and removes skeleton, is equipped with a plurality of folding skeleton (2) respectively between every adjacent two removal skeletons, covers protection casing (15) at the surface of removing the skeleton, the inlayer of protection casing (15) is equipped with synthetic organic fiber material, and the power input axle of inboard walking wheel (4) that sets up at first group removal skeleton lower extreme is connected driving motor (14) through motor cabinet (13) respectively, and the power output axle of two driving motor (14) is connected the power input axle of walking wheel (4) through the shaft coupling respectively, and two driving motor (14) pass through line connection control module, control module passes through the rain sensor that the line connection set up in removal skeleton top form the portable noise reduction device of main transformer in the transformer substation.
2. The mobile noise reducer for main transformers in substations of claim 1, characterized by: the synthetic organic fiber material is any one of glass cotton, slag cotton or rock cotton.
3. The mobile noise reducer for main transformers in substations of claim 1, characterized by: the slideway (3) is I-steel.
4. A mobile noise reducer for main transformers in substations according to claim 3, characterized in that: the specification of the I-steel is 10# or 12#.
5. The mobile noise reducer for main transformers in substations of claim 1, characterized by: the motor base (13) is fixed on the inner side surface of the supporting block (12) through bolts, and a driving motor (14) is arranged on the motor base (13).
6. The mobile noise reducer for main transformers in substations of claim 1, characterized by: the driving motor (14) is a servo motor.
7. The mobile noise reducer for main transformers in substations of claim 1, characterized by: the end part of the slideway (3) is provided with a limit sensor, and the limit sensor is connected with the control module through a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338392.2A CN108022734B (en) | 2017-12-14 | 2017-12-14 | Movable noise reduction device for main transformer in transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711338392.2A CN108022734B (en) | 2017-12-14 | 2017-12-14 | Movable noise reduction device for main transformer in transformer substation |
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| Publication Number | Publication Date |
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| CN108022734A CN108022734A (en) | 2018-05-11 |
| CN108022734B true CN108022734B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711338392.2A Active CN108022734B (en) | 2017-12-14 | 2017-12-14 | Movable noise reduction device for main transformer in transformer substation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530667B (en) * | 2020-11-16 | 2022-01-11 | 浙江德通变压器有限公司 | Low-noise dry-type transformer |
| CN113066648B (en) * | 2021-03-26 | 2022-07-29 | 国网河南省电力公司南召县供电公司 | Noise reduction protection device and method for extra-high voltage transformer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241797A (en) * | 2008-03-07 | 2008-08-13 | 国家电网公司 | Noise reduction device and method for current conversion transformer |
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN104088946A (en) * | 2014-06-27 | 2014-10-08 | 重庆朗福环保科技有限公司 | Vibration damper and transformer vibration damping method |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3554764B2 (en) * | 2000-11-20 | 2004-08-18 | 独立行政法人 宇宙航空研究開発機構 | Active sound absorbing panel system using movement control reflector |
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- 2017-12-14 CN CN201711338392.2A patent/CN108022734B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101241797A (en) * | 2008-03-07 | 2008-08-13 | 国家电网公司 | Noise reduction device and method for current conversion transformer |
| CN103606441A (en) * | 2013-08-30 | 2014-02-26 | 国家电网公司 | Noise reduction and sound absorption device of transformer |
| CN104088946A (en) * | 2014-06-27 | 2014-10-08 | 重庆朗福环保科技有限公司 | Vibration damper and transformer vibration damping method |
| CN107237414A (en) * | 2017-07-28 | 2017-10-10 | 国网河南省电力公司 | A kind of microporous aluminosilicates fiber sandwich sound-absorbing composite board |
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| CN108022734A (en) | 2018-05-11 |
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