CN201523312U - Direct-current (DC) converter valve for preventing electrolytic etching - Google Patents
Direct-current (DC) converter valve for preventing electrolytic etching Download PDFInfo
- Publication number
- CN201523312U CN201523312U CN2009202471013U CN200920247101U CN201523312U CN 201523312 U CN201523312 U CN 201523312U CN 2009202471013 U CN2009202471013 U CN 2009202471013U CN 200920247101 U CN200920247101 U CN 200920247101U CN 201523312 U CN201523312 U CN 201523312U
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- China
- Prior art keywords
- radiator
- converter valve
- water
- electrolytic etching
- stainless steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000866 electrolytic etching Methods 0.000 title abstract 4
- 238000005260 corrosion Methods 0.000 claims abstract description 29
- 230000007797 corrosion Effects 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 20
- 229910000619 316 stainless steel Inorganic materials 0.000 claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000012467 final product Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000003466 welding Methods 0.000 abstract description 5
- 239000004411 aluminium Substances 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract 1
- 230000000191 radiation effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000005406 washing Methods 0.000 description 4
- 239000003973 paint Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to a high voltage direct-current (DC) transmission converter valve for preventing electrolytic etching, which comprises a thyristor radiator, a radiator water inlet and outlet and a 316 stainless steel electrode, wherein the thyristor radiator adopts an aluminium water-cooling radiator, and the 316 stainless steel electrode is arranged at the end of the radiator water inlet and outlet. The DC converter valve for preventing electrolytic etching has the advantages of good electrolytic etching prevention effect, simple processing technique, low requirement on welding, random replacement and reduced cost, and can avoid the corrosion and plugging of a water-cooling system of the converter valve, not reduce the radiation effect of the water-cooling system, and simultaneously prolong the service life of the converter valve.
Description
Technical field:
The utility model relates to the anti-electrolytic corrosion water cooling system of power electronics, is specifically related to a kind of high voltage direct current transmission converter valve of anti-electrolytic corrosion.
Background technology:
DC converter valve generally adopts water-cooling pattern to cool off its heater element (as thyristor radiator, damping resistance and saturable reactor etc.).The cooling water of water-cooling system will flow through hardware diverse location, that different potentials is arranged, and the water route between the hardware of different potentials might produce leakage current, causes the hardware electrolytic corrosion.Though the conductivity in the cooling system is controlled in lower level, the leakage current density that pressure reduction produces in the water pipe is controlled to μ A/cm
2The order of magnitude, but electrolytic corrosion still can take place in the metal of aluminium water cooling system cooling system part.Intensive at radiator import and export electric field isopleth, voltage gradient is big, causes the current density maximum, and in radiator in the water cooling chamber, because radiation space is big, electric field strength weakens.So importing and exporting at radiator is electrolytic corrosion protection weakest link.
The present solution aluminum water-cooling but method of radiator electrolytic corrosion is process for protecting surface (inner chamber coating is anti-rotten).The anti-corruption of coating is a kind of physical method, can prolong the useful life of radiator.But it still has following shortcoming: (1) anti-corrosion material requires high: inwall processing is adopted dip-coating, is irritated the mode that is coated with, so the radiator inwall anticorrosive paint should not be made into bi-component, can only be one pack system, has increased the development difficulty of radiator inwall anticorrosive paint.(2) coat complex process: interior anticorrosion process mainly is made up of preliminary treatment, chemical oxidation, filling coating and baking-curing; Technological process mainly contains: degreasing → washing → alkaline etching → washing → neutralization → washing → chemical oxidation → washing secondary → drying → filling is coated with → controls liquid → baking → filling and is coated with → controls liquid → baking.(3) radiator maintenance cost height:, increased the converter valve cost if after the radiator inwall corrosion, need integral replacing.(4) overall performance fragility: owing to be the whole coating of internal chamber wall, certain is corroded in using as operation, weld especially, and its integral body is destroyed.(5) heat exchange property reduces: owing to be at inner chamber wall last layer coating, can reduce the heat transfer property of radiator inwall face; (6) welding process requirement height: most Aluminium Radiator producer adopts the soldering processes welding, and the aluminium-silicon alloy welding wire of use can cause the silicon amount at brazed seam place very high; Therefore in lacquer front surface processing procedure, selective corrosion can take place in the brazed seam place, thereby separates out a large amount of, the loose silicon particle that huddles, and reduces brazed seam place paint film adhesion.
The utility model content:
The utility model purpose is, a kind of electrolytic corrosion that can effectively reduce radiator is provided, and increases the service life, and the anti-electrolytic corrosion DC converter valve of perfect heat-dissipating, improves the overall performance of converter valve water-cooling system.
For realizing above-mentioned above-mentioned purpose, the utility model provides a kind of anti-electrolytic corrosion DC converter valve, it is characterized in that: said DC converter valve comprises thyristor radiator, radiator intake-outlet and 316 stainless steel electrodes.
An optimal technical scheme of the present utility model is: described a kind of anti-electrolytic corrosion DC converter valve is characterized in that: described thyristor radiator adopts the aluminum water-cooling radiator.
Further optimal technical scheme of the present utility model is: described a kind of anti-electrolytic corrosion DC converter valve, it is characterized in that: described 316 stainless steel electrodes are installed in the radiator intake-outlet.
Further optimal technical scheme of the present utility model is: the corrosion DC converter valve is separated in described a kind of discharge, it is characterized in that: the weight of described 316 stainless steel electrodes is got 6～10 grams, and its shape gets final product can be installed in the radiator intake-outlet.
The utility model beneficial effect: the utility model is at the traditional design technical disadvantages, strengthen corrosion-resistant protection at the most corrosion-prone position, can effectively reduce the galvano-cautery of Aluminium Radiator, avoid the corrosion and the obstruction of converter valve water-cooling system, when not influencing the water-cooling system radiating effect, prolong its useful life; And of the present utility model can the replacing immediately, processing technology is simple, and welding is not had excessive demand yet, reduces cost.
Description of drawings:
Fig. 1 the utility model is prevented electrolytic corrosion DC converter valve front view;
Fig. 2 the utility model is prevented electrolytic corrosion DC converter valve end view.
Embodiment:
For realizing reducing the electrolytic corrosion of DC converter valve, increase the service life, improve the overall performance of converter valve water-cooling system, the utility model provides a kind of anti-electrolytic corrosion DC converter valve, as shown in Figure 1 and Figure 2, it comprises: thyristor radiator 1, radiator intake-outlet 2 and 316 stainless steel electrodes 3.Thyristor radiator 1 adopts the aluminum water-cooling radiator.316 stainless steel electrodes 3 are installed in the weight of radiator intake-outlet 2,316 stainless steel electrodes 3 and get 6～10 grams, and its shape gets final product can be installed in radiator intake-outlet 2.By import and export edge cover 316 stainless steel electrodes 3 at radiator, can adopt the strong steel of electrocorrosion-resisting to resist galvano-cautery on the one hand, can produce as much as possible evenly equipotential by importing and exporting electrode on the other hand, make that converter valve water-cooling system Potential distribution is reasonable, thereby reduce the Leakage Current of water-cooling system, thereby reach anti-electrolytic corrosion, the effect that increases the service life.
Should be noted that at last; above embodiment is only in order to explanation the technical solution of the utility model but not it is limited; although the utility model is had been described in detail with reference to the foregoing description; described those skilled in the art are to be understood that: the shape of the electrode that is adopted and number and on the thyristor radiator, use the reinforcement corrosion resistance guard method at perishable position embodiment of the present utility model to be made amendment or be equal to replacement, and do not break away from all being encompassed in of the utility model spirit and scope claim protection range of the present utility model.
Claims (4)
1. anti-electrolytic corrosion DC converter valve, it is characterized in that: said DC converter valve comprises thyristor radiator (1), radiator intake-outlet (2) and 316 stainless steel electrodes (3).
2. a kind of anti-electrolytic corrosion DC converter valve as claimed in claim 1 is characterized in that: described thyristor radiator (1) adopts the aluminum water-cooling radiator.
3. a kind of anti-electrolytic corrosion DC converter valve as claimed in claim 1 or 2, it is characterized in that: described 316 stainless steel electrodes (3) are installed in radiator intake-outlet (2).
4. the corrosion DC converter valve is separated in a kind of discharge as claimed in claim 3, it is characterized in that: the weight of described 316 stainless steel electrodes (3) is got 6～10 grams, and its shape gets final product can be installed in radiator intake-outlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471013U CN201523312U (en) | 2009-11-13 | 2009-11-13 | Direct-current (DC) converter valve for preventing electrolytic etching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202471013U CN201523312U (en) | 2009-11-13 | 2009-11-13 | Direct-current (DC) converter valve for preventing electrolytic etching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201523312U true CN201523312U (en) | 2010-07-07 |
Family
ID=42509488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202471013U Expired - Lifetime CN201523312U (en) | 2009-11-13 | 2009-11-13 | Direct-current (DC) converter valve for preventing electrolytic etching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201523312U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269387A (en) * | 2014-09-28 | 2015-01-07 | 国家电网公司 | Lifting method for radiator electrode of DC converter valve |
| CN104404501A (en) * | 2014-11-14 | 2015-03-11 | 无锡鸿声铝业有限公司 | Heat sink anticorrosion technology |
| CN107902725A (en) * | 2017-11-16 | 2018-04-13 | 云南电网有限责任公司电力科学研究院 | A kind of corrosion product capturing device and method |
| CN108039811A (en) * | 2017-09-18 | 2018-05-15 | 全球能源互联网研究院有限公司 | Radiator and there is its power equipment |
| CN110791794A (en) * | 2019-11-27 | 2020-02-14 | 云南电网有限责任公司电力科学研究院 | Method and device for preparing converter valve thyristor by plating solution |
| CN112367810A (en) * | 2020-11-09 | 2021-02-12 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Radiator cooling water channel for converter valve cooling system |
-
2009
- 2009-11-13 CN CN2009202471013U patent/CN201523312U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269387A (en) * | 2014-09-28 | 2015-01-07 | 国家电网公司 | Lifting method for radiator electrode of DC converter valve |
| CN104269387B (en) * | 2014-09-28 | 2017-06-06 | 国家电网公司 | A kind of extracting method of DC converter valve radiator electrode |
| CN104404501A (en) * | 2014-11-14 | 2015-03-11 | 无锡鸿声铝业有限公司 | Heat sink anticorrosion technology |
| CN108039811A (en) * | 2017-09-18 | 2018-05-15 | 全球能源互联网研究院有限公司 | Radiator and there is its power equipment |
| CN107902725A (en) * | 2017-11-16 | 2018-04-13 | 云南电网有限责任公司电力科学研究院 | A kind of corrosion product capturing device and method |
| CN107902725B (en) * | 2017-11-16 | 2023-11-17 | 云南电网有限责任公司电力科学研究院 | Corrosion product trapping device and method |
| CN110791794A (en) * | 2019-11-27 | 2020-02-14 | 云南电网有限责任公司电力科学研究院 | Method and device for preparing converter valve thyristor by plating solution |
| CN112367810A (en) * | 2020-11-09 | 2021-02-12 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Radiator cooling water channel for converter valve cooling system |
| CN112367810B (en) * | 2020-11-09 | 2023-05-16 | 中国南方电网有限责任公司超高压输电公司贵阳局 | Radiator cooling waterway for converter valve cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140307 Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20140307 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100192 HAIDIAN, BEIJING TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140307 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: China Electric Power Research Institute Address before: 100192 Beijing city Haidian District Qinghe small Camp Road No. 15 Patentee before: China Electric Power Research Institute |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100707 |
|
| CX01 | Expiry of patent term |