CN105244150A - A noise reduction and ventilation cooling device for a converter transformer - Google Patents
A noise reduction and ventilation cooling device for a converter transformer Download PDFInfo
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- CN105244150A CN105244150A CN201510721915.6A CN201510721915A CN105244150A CN 105244150 A CN105244150 A CN 105244150A CN 201510721915 A CN201510721915 A CN 201510721915A CN 105244150 A CN105244150 A CN 105244150A
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Abstract
The invention provides a noise reduction and ventilation cooling device for a converter transformer. The noise reduction and ventilation cooling device comprises a hollow sound insulation enclosure formed from an inner layer sound insulation shield and an outer layer sound insulation shield. A space gap is formed between the inner layer sound insulation shield and the outer layer sound insulation shield. The upper end of one side of the outer layer sound insulation shield is provided with a ventilation inlet and the upper end of the other side opposite the side is provided with a ventilation outlet. The inner layer sound insulation shield is correspondingly provided with a first ventilation opening and a second ventilation opening at the lower ends of the corresponding sides of the ventilation inlet and the ventilation outlet. Separation plates are arranged in the space gap between the first ventilation opening and the ventilation inlet and between the second ventilation opening and the ventilation outlet and thus divide the space gap between the first ventilation opening and the ventilation inlet and between the second ventilation opening and the ventilation outlet. The separation plates are provided with through holes. The noise reduction and ventilation cooling device for a converter transformer achieves a good ventilation and noise reduction effect through reasonable design.
Description
Technical field
The invention belongs to electric equipment field of noise control, be specifically related to a kind of converter transformer noise reduction ventilation cooling device.
Background technology
Converter transformer is vital key equipment in super high voltage direct current electricity transmission engineering, is the nucleus equipment of the change of current in AC and DC transmission system, inversion two end interface.Its input and safe operation are key and the important guarantees that engineering obtains power benefit.The key effect of converter transformer, requires that it has high reliability and high-tech performance.Because there is the acting in conjunction in AC and DC electric field, magnetic field, so the structure of converter transformer is special, complicated, key technology is high-leveled and difficult, requires strict to manufacturing environment and crudy.Carry out converter transformer manufacture and design key technology research, capture and manufacturing condition retrofit work, improve constantly research technique, will the design and manufacturing technology comprehensively grasping converter transformer be conducive to, realize converter transformer production domesticization, fill the domestic gaps.Further raising and the development of domestic AC and DC transmission facility designing and manufacturing level can be promoted simultaneously, for the development of ultra high voltage AC and DC power transmission and transforming equipment lays the first stone, carry out early-stage preparations, realize converter transformer production domesticization.
Converter transformer, in running, because noise is comparatively large, therefore can, to producing comparatively serious noise pollution around, therefore need the noise to it sends to control.Control mode conventional is at present Barrier method, it installs an acoustic barrier additional before converter transformer or between converter transformer body and cooler, but its limited efficiency, the heat simultaneously running machine itself in limited confined space is difficult to distribute, therefore can gather heat for a long time thus adverse influence is produced to the operation of equipment, therefore need design a kind ofly can either can be good at playing the device of ventilating and cooling effect by noise reduction very well, the good operation of guarantee equipment while fine noise reduction simultaneously.
Summary of the invention
The object of the invention is to provide a kind of converter transformer noise reduction ventilation cooling device to overcome above the deficiencies in the prior art, can dispel the heat to it while can effectively reducing converter transformer noise, the operation of better guarantee equipment.
Technical scheme of the present invention is as follows:
A kind of converter transformer noise reduction ventilation cooling device, comprise the hollow blimp be made up of internal layer noise barrier and outer noise barrier, it is spatial joint clearance between internal layer noise barrier and outer noise barrier, the upper end, side of outer noise barrier is provided with ventilation intake, and opposite side upper end is corresponding thereto provided with draft outlet; With the lower end of ventilation intake and draft outlet respective side on internal layer noise barrier, correspondence is provided with the first ventilating opening and the second ventilating opening, dividing plate is provided with in first ventilating opening and the spatial joint clearance of the second ventilating opening respectively and between ventilation intake and draft outlet, first ventilating opening and ventilation intake and the spatial joint clearance between the second ventilating opening and draft outlet separate by dividing plate, and dividing plate is provided with through hole.
Described converter transformer noise reduction ventilation cooling device, the material of described outer noise barrier and internal layer noise barrier can be glass or cement.
Described converter transformer noise reduction ventilation cooling device, dividing plate magnitude setting is more than one.
Described converter transformer noise reduction ventilation cooling device, on dividing plate, the aperture of through hole can be 4-6mm.
Described converter transformer noise reduction ventilation cooling device, on dividing plate, the punching rate of through hole can be 60-70%.
Described converter transformer noise reduction ventilation cooling device, internal layer noise barrier can be coated with sound deadening coating.
Described converter transformer noise reduction ventilation cooling device, dividing plate can be coated with sound deadening coating.
Above-described converter transformer noise reduction ventilation cooling device, described sound deadening coating can be prepared according to following steps:
Step 1, by with the zeolite powder 2 parts of parts by weight, clay powder 5 parts, sepiolite 8 parts, propylene glycol ester 10 parts, 3 parts, acrylic acid, glycerin monostearate 3 parts joins in mixing and blending machine and is uniformly mixed, and obtains mixed material;
Step 2, joins mixed material in reactor, adds azobis-dimethylvaleronitrile 5 parts, sodium carboxymethyl starch 5 parts, 7 parts, glass fibre, is heated to 60 DEG C, stirs 20 minutes, then under the condition of nitrogen protection, is warming up to 80 DEG C, continue stirring 15 minutes, be down to room temperature, obtain intermediate one;
Intermediate one is be heated to 40 DEG C under the condition of 0.02MPa in vacuum degree by step 3, stirs 10 minutes under the condition of 1000 revs/min, then stirs 20 minutes under with the condition of 500 revs/min, is down to room temperature, obtains intermediate two;
Step 4, adds 30 parts, ethyl acetate in intermediate two, and silicon dioxide 5 parts, mixes, obtain sound deadening coating.
Described converter transformer noise reduction ventilation cooling device, before being heated to 60 DEG C in step 2, can also add the ammonium sebacate 3 parts with parts by weight, ethylenediamine 1 part and 6 parts, urea.
Converter transformer noise reduction ventilation cooling device provided by the invention, by the design ventilation intake of correct position, draft outlet, ventilating opening and dividing plate, reaches good ventilation noise reduction; The sound deadening coating that the application of the invention provides, further reaches the effect of noise reduction.
Accompanying drawing explanation
Fig. 1 is the converter transformer noise reduction ventilation cooling device schematic diagram in the embodiment of the present invention 1, and wherein 1 is internal layer noise barrier, and 2 is outer noise barrier, 3 is ventilation intake, and 4 is draft outlet, and 5 is dividing plate, 6 is the first ventilating opening, and 7 is the second ventilating opening, and 8 is converter transformer.
Embodiment
Embodiment 1
As shown in Figure 1, for converter transformer noise reduction ventilation cooling device schematic diagram of the present invention, comprise the hollow blimp be made up of internal layer noise barrier 1 and outer noise barrier 2, it is spatial joint clearance between internal layer noise barrier 1 and outer noise barrier 2, the upper end, side of outer noise barrier 2 is provided with ventilation intake 3, and opposite side upper end is corresponding thereto provided with draft outlet 4; With the lower end of ventilation intake 3 and draft outlet 4 respective side on internal layer noise barrier 1, correspondence is provided with the first ventilating opening 6 and the second ventilating opening 7, dividing plate 5 is provided with in first ventilating opening 6 and the spatial joint clearance of the second ventilating opening 7 respectively and between ventilation intake 3 and draft outlet 4, first ventilating opening 6 and ventilation intake 3 and the spatial joint clearance between the second ventilating opening 7 and draft outlet 4 separate by dividing plate 5, and dividing plate 5 is provided with through hole.The hollow blimp consisted of two-layer noise barrier in the present embodiment reaches effective noise reduction, and the material of outer noise barrier 2 and internal layer noise barrier 1 can be the material such as glass or cement, can play soundproof effect well; Arrange the effect that dividing plate 5 serves filtered noise well, can make the noise of leakage inside little as far as possible in ventilation process, dividing plate 5 arranges more than one, can play the effect of filtered noise further.To ventilation intake 3, draft outlet 4, the diverse location of the first ventilating opening 6 and the second ventilating opening 7 arranges the effect serving inner air circulation well, can play cooling effect better.
Embodiment 2
The present embodiment is the further improvement on embodiment 1 basis, on its median septum 5, the aperture of through hole is 4-6mm, on dividing plate 5, the punching rate of through hole is 60-70%, the object of such setting is to ensure to greatest extent filtered noise under the condition of available ventilation, show through detection, utilize the set-up mode of the present embodiment, drafting efficiency is do not arrange dividing plate ventilation rate more than 91%, % within noise percent of pass then have decreased to 38.
Embodiment 3
The present embodiment is the further improvement on embodiment 2 basis, wherein on internal layer noise barrier 1 and dividing plate 5, be coated with commercially available sound deadening coating, pass through which, the converter transformer noise reduction ventilation cooling device provided by the present embodiment applies to ± converter transformer of 800kV power, and its noise reduction rate improves more than 20% compared in embodiment 2.
Embodiment 4
The present embodiment is the further improvement carried out on the basis of embodiment 3, and wherein said sound deadening coating is the coating of designed, designed of the present invention, and its concrete preparation method is as follows:
Step 1, by with the zeolite powder 2 parts of parts by weight, clay powder 5 parts, sepiolite 8 parts, propylene glycol ester 10 parts, 3 parts, acrylic acid, glycerin monostearate 3 parts joins in mixing and blending machine and is uniformly mixed, and obtains mixed material;
Step 2, joins mixed material in reactor, adds azobis-dimethylvaleronitrile 5 parts, sodium carboxymethyl starch 5 parts, 7 parts, glass fibre, is heated to 60 DEG C, stirs 20 minutes, then under the condition of nitrogen protection, is warming up to 80 DEG C, continue stirring 15 minutes, be down to room temperature, obtain intermediate one;
Intermediate one is be heated to 40 DEG C under the condition of 0.02MPa in vacuum degree by step 3, stirs 10 minutes under the condition of 1000 revs/min, then stirs 20 minutes under with the condition of 500 revs/min, is down to room temperature, obtains intermediate two;
Step 4, adds 30 parts, ethyl acetate in intermediate two, and silicon dioxide 5 parts, mixes, obtain sound deadening coating.
Spray on internal layer noise barrier 1 and dividing plate 5 by using the above volume sound deadening coating prepared, coating thickness is 4-6mm, after measured, the noise reduction rate of whole converter transformer noise reduction ventilation cooling device improves more than 15% with using in embodiment 3 compared with commercially available sound deadening coating, reaches more than 85.8%.The specific formula for calculation of noise reduction rate is as follows:
The noise ration measured before the noise ration/noise reduction measured after noise reduction rate (%)=1-(noise reduction) × 100%
Embodiment 5
The present embodiment is the further improvement carried out on the basis of embodiment 4, before wherein the preparation process of sound deadening coating is heated to 60 DEG C in step 2, also add the ammonium sebacate 3 parts with parts by weight, ethylenediamine 1 part and 6 parts, urea, other steps are identical with preparation process in embodiment 4.Carry out the spraying identical with embodiment 4 to the sound deadening coating that the present embodiment provides, then measure its noise reduction rate, result shows, the noise reduction rate of device reaches more than 93.6%, demonstrates the superiority of the present embodiment further.
For the Design of ventilation that the present invention provides, after testing, when upper and lower two pieces of dividing plates are respectively set in the first ventilating opening 6 and the spatial joint clearance of the second ventilating opening 7 respectively and between ventilation intake 3 and draft outlet 4 (as Fig. 1), drafting efficiency is more than 90% when not arranging dividing plate, and noise percent of pass then have decreased within 22%.Therefore, the noise pollution of very big reduction equipment when scheme provided by the invention can ensure ventilating and cooling well.
Claims (9)
1. a converter transformer noise reduction ventilation cooling device, it is characterized in that, comprise the hollow blimp be made up of internal layer noise barrier (1) and outer noise barrier (2), be spatial joint clearance between internal layer noise barrier (1) and outer noise barrier (2), the upper end, side of outer noise barrier (2) is provided with ventilation intake (3), and opposite side upper end is corresponding thereto provided with draft outlet (4); The lower end of and ventilation intake (3) and draft outlet (4) respective side upper at internal layer noise barrier (1), correspondence is provided with the first ventilating opening (6) and the second ventilating opening (7), dividing plate (5) is provided with in first ventilating opening (6) and the spatial joint clearance of the second ventilating opening (7) respectively and between ventilation intake (3) and draft outlet (4), first ventilating opening (6) and ventilation intake (3) and the spatial joint clearance between the second ventilating opening (7) and draft outlet (4) separate by dividing plate (5), and (5) are provided with through hole with dividing plate.
2. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, the material of described outer noise barrier (2) and internal layer noise barrier (1) is glass or cement.
3. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, dividing plate (5) magnitude setting is more than one.
4. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, the aperture of the upper through hole of dividing plate (5) is 4-6mm.
5. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, the punching rate of the upper through hole of dividing plate (5) is 60-70%.
6. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, (1) is coated with sound deadening coating to internal layer noise barrier.
7. converter transformer noise reduction ventilation cooling device according to claim 1, is characterized in that, (5) are coated with sound deadening coating with dividing plate.
8. the converter transformer noise reduction ventilation cooling device according to claim 6 or 7, it is characterized in that, described sound deadening coating is prepared according to following steps:
Step 1, by with the zeolite powder 2 parts of parts by weight, clay powder 5 parts, sepiolite 8 parts, propylene glycol ester 10 parts, 3 parts, acrylic acid, glycerin monostearate 3 parts joins in mixing and blending machine and is uniformly mixed, and obtains mixed material;
Step 2, joins mixed material in reactor, adds azobis-dimethylvaleronitrile 5 parts, sodium carboxymethyl starch 5 parts, 7 parts, glass fibre, is heated to 60 DEG C, stirs 20 minutes, then under the condition of nitrogen protection, is warming up to 80 DEG C, continue stirring 15 minutes, be down to room temperature, obtain intermediate one;
Intermediate one is be heated to 40 DEG C under the condition of 0.02MPa in vacuum degree by step 3, stirs 10 minutes under the condition of 1000 revs/min, then stirs 20 minutes under with the condition of 500 revs/min, is down to room temperature, obtains intermediate two;
Step 4, adds 30 parts, ethyl acetate in intermediate two, and silicon dioxide 5 parts, mixes, obtain sound deadening coating.
9. converter transformer noise reduction ventilation cooling device according to claim 8, is characterized in that, before being heated to 60 DEG C in step 2, also adds the ammonium sebacate 3 parts with parts by weight, ethylenediamine 1 part and 6 parts, urea.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721915.6A CN105244150B (en) | 2015-10-30 | 2015-10-30 | A kind of converter power transformer noise reduction ventilation cooling device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510721915.6A CN105244150B (en) | 2015-10-30 | 2015-10-30 | A kind of converter power transformer noise reduction ventilation cooling device |
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| CN105244150A true CN105244150A (en) | 2016-01-13 |
| CN105244150B CN105244150B (en) | 2017-08-11 |
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| CN201510721915.6A Expired - Fee Related CN105244150B (en) | 2015-10-30 | 2015-10-30 | A kind of converter power transformer noise reduction ventilation cooling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652990A (en) * | 2017-02-21 | 2017-05-10 | 湖州浩森科技股份有限公司 | Small sound-insulating enclosure device for industrial use |
| CN107333455A (en) * | 2017-08-17 | 2017-11-07 | 上海电力设计院有限公司 | One kind ventilation trench and isolating device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109024947A (en) * | 2018-07-20 | 2018-12-18 | 国网山西省电力公司电力科学研究院 | The sound barrier device of for transformer reducing fan noise |
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| CN201194191Y (en) * | 2008-03-07 | 2009-02-11 | 国家电网公司 | Ventilation refrigerating apparatus for enclosed mounting space of current converting transformer |
| CN102022013A (en) * | 2010-11-05 | 2011-04-20 | 江苏省电力设计院 | Noise reduction structure of main noise resources of urban indoor substation |
| JP2013021035A (en) * | 2011-07-08 | 2013-01-31 | Mitsubishi Electric Corp | Noise reduction structure for transformer |
| CN202839218U (en) * | 2012-08-27 | 2013-03-27 | 伊川县电业局 | Transformer noise reduction box |
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2015
- 2015-10-30 CN CN201510721915.6A patent/CN105244150B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201194191Y (en) * | 2008-03-07 | 2009-02-11 | 国家电网公司 | Ventilation refrigerating apparatus for enclosed mounting space of current converting transformer |
| CN102022013A (en) * | 2010-11-05 | 2011-04-20 | 江苏省电力设计院 | Noise reduction structure of main noise resources of urban indoor substation |
| JP2013021035A (en) * | 2011-07-08 | 2013-01-31 | Mitsubishi Electric Corp | Noise reduction structure for transformer |
| CN202839218U (en) * | 2012-08-27 | 2013-03-27 | 伊川县电业局 | Transformer noise reduction box |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652990A (en) * | 2017-02-21 | 2017-05-10 | 湖州浩森科技股份有限公司 | Small sound-insulating enclosure device for industrial use |
| CN106652990B (en) * | 2017-02-21 | 2024-02-27 | 湖州浩森科技股份有限公司 | Industrial small-size sound-proof housing device |
| CN107333455A (en) * | 2017-08-17 | 2017-11-07 | 上海电力设计院有限公司 | One kind ventilation trench and isolating device |
| CN107333455B (en) * | 2017-08-17 | 2023-09-12 | 上海电力设计院有限公司 | Ventilating trench and isolation device |
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| CN105244150B (en) | 2017-08-11 |
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Granted publication date: 20170811 Termination date: 20181030 |