CN203461913U - Treatment device for cooling water in converter substation - Google Patents
Treatment device for cooling water in converter substation Download PDFInfo
- Publication number
- CN203461913U CN203461913U CN201320528354.4U CN201320528354U CN203461913U CN 203461913 U CN203461913 U CN 203461913U CN 201320528354 U CN201320528354 U CN 201320528354U CN 203461913 U CN203461913 U CN 203461913U
- Authority
- CN
- China
- Prior art keywords
- cooling water
- circulation loop
- main circulation
- outlet
- reverse osmosis
- 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.)
- Expired - Fee Related
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 19
- 150000003839 salts Chemical class 0.000 claims description 14
- 230000008676 import Effects 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000008619 Xingren Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a treatment device for cooling water in a converter substation. The treatment device comprises a main circulation loop for inner cooling water of a converter valve, and an outer cooling water system of the converter valve. The treatment device is characterized in that the main circulation loop is composed of the converter valve, a heat exchanger, a circulating pump, a first precision filter and a main circulation loop conductivity meter which are sequentially connected, and an inlet/outlet of the circulating pump of the main circulation loop is provided with a bypass consisting of an electric desalter, a second precision filter and a bypass conductivity meter; the outer cooling water system is composed of an ultrafilter, a high-pressure pump, a reverse osmosis unit and a balancing pool which are sequentially connected, an outlet of the ultrafilter is connected in parallel with a silt density index meter and a turbidity meter, and an outlet of the reverse osmosis unit is connected in parallel with the conductivity meter. The treatment device disclosed by the utility model is used for treating cooling water in the converter substation, and can thoroughly solve the corrosion, scaling and plugging problems of cooling water in the converter substation caused by improper water quality treatment, thereby avoiding direct-current blocking or emergency shutdown accidents of the converter substation caused by internal cooling water problems.
Description
Technical field
The utility model belongs to HVDC Transmission Technology field, is specifically related to a kind for the treatment of unit of current conversion station water coolant.
Background technology
Converter valve is current conversion station core component, cooling system is an important component part of converter valve, it is discharged into the power-consumption heat of each components and parts on valve body outside the valve Room, guarantees that thyristor junction temperature is in normal allowed band, and cooling water system is divided into the interior cooling water system outer cooling water system of unifying.Outer water coolant is mainly used to cooling interior water coolant, and the quality of the cooling performance of outer water coolant directly affects converter valve safe operation.
At present, no matter be interior water coolant or outer water coolant, there is obvious defect in the water treatment method adopting, unsatisfactory in actual moving process.Often there is corrosion and scaling, blockage problem in operation for some time later.Repeatedly there is main filter stoppage problem in Bao'an current conversion station, causes the phenomenons such as inner cold water flow reduces, the hydraulic pressure difference rising of main strainer front and back, the reduction of valve tower Inlet and outlet water pressure reduction, affects converter valve and normally dispel the heat and then cause straight-flow system to stop transport.All there is the serious blockage problem of reverse osmosis membrane in Jiangling current conversion station, Xingren current conversion station, high slope current conversion station, causes reverse osmosis system unit to equalizing reservoir moisturizing, to have a strong impact on the security of DC transmission system.
Utility model content
The technical problems to be solved in the utility model is, the deficiency existing for existing current conversion station cooling water treatment system design aspect, a kind for the treatment of unit of current conversion station water coolant is provided, with the dirty stifled problem of thorough resolution system fouling, realize the Real-Time Monitoring to cooling water quality simultaneously, improve the safety in operation of current conversion station.
The technical solution that realizes the utility model object is:
The treatment unit of the current conversion station water coolant that the utility model provides, comprises the main circulation loop of water coolant and the outer cooling water system of converter valve in converter valve; Described main circulation loop is comprised of the converter valve connecting successively, interchanger, recycle pump, the first accurate filter and main circulation loop specific conductivity table, at the recycle pump of described main circulation loop, imports and exports and is provided with the bypass being comprised of electric salt remover, the second accurate filter and shunt conductance rate table; Described outer cooling water system is comprised of the ultra-fine filter connecting successively, high-pressure pump, reverse osmosis, equalizing reservoir, at an outlet Silt density index table (SDI) in parallel and a turbidimeter of described ultra-fine filter, at the outlet shunt conductance rate table of described reverse osmosis.
Between the import of described electric salt remover and circulation pump outlet, be also provided with filling pipe.
Described recycle pump, high-pressure pump, electric salt remover are at least respectively in parallel two, and described reverse osmosis is two sections of one-levels.
The beneficial effects of the utility model are:
By aforesaid method and device, process current conversion station water coolant and can thoroughly solve corrosion and scaling and the blockage problem that current conversion station water coolant causes because water conditioning is improper, thereby avoid current conversion station to cause direct current locking or emergency outage accident because of inner cold water problem; The advanced level of automation of equipment and technology is high, realizes unmanned completely, long service life, and long-term economic benefit is obvious; The use of in-line meter has effectively improved precision and the accuracy controlled, has also overcome the inaccurate problem of off-line measurement, the security that has improved current conversion station simultaneously.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the utility model device.
Embodiment
Referring to accompanying drawing, the treatment unit of the current conversion station water coolant that the utility model provides, comprises the main circulation loop of water coolant and the outer cooling water system of converter valve in converter valve; Described main circulation loop is by the change of current connecting successively, 1, interchanger 9, recycle pump 6, the first accurate filter 3 and main circulation loop specific conductivity table 2 form, at the recycle pump 6 of described main circulation loop, import and export and be provided with the bypass being formed by electric salt remover 5, the second accurate filter 7 and shunt conductance rate table 8, between the import of described electric salt remover 5 and the outlet of recycle pump 6, be also provided with filling pipe 4; Described outer cooling water system is comprised of the ultra-fine filter 16 connecting successively, high-pressure pump 13, reverse osmosis 12, equalizing reservoir 10, the entrance of ultra-fine filter 16 is connected with running water pipe 17,15 and turbidimeters 14 of an outlet Silt density index table (SDI) in parallel of ultra-fine filter 16, the outlet shunt conductance rate table 11 of reverse osmosis 12; Described recycle pump 6, high-pressure pump 13, electric salt remover 5 are respectively in parallel two, and reverse osmosis 12 is two sections of one-levels.
The first accurate filter material in main circulation loop is 316 stainless steels, and filtering accuracy is 3 μ m; Specific conductivity table in main circulation loop is convenient to quality of cooling water in Real-Time Monitoring; Silt density index table (SDI) in cooling water system adopts the online SDI of EZ-SDI-1D-A type being produced by U.S. Luo Di company to show outside, the 1720E type turbidimeter that turbidimeter adopts U.S. Hash company to produce, the polymetron 9125 type electric conductivity tables that each specific conductivity table in device all adopts U.S. Hash company to produce;
The principle of work of the utility model device:
1, utilize interior cooling water bypass to process water coolant in part, water coolant in part is processed, thereby make whole interior water coolant meet converter valve, move required water quality requirement.In interior cooling water bypass, utilize water coolant specific conductivity in electric salt remover 5 controls, the electric salt remover that the processing water yield that this electric salt remover adopts Lai Te Rider, Dalian company to produce is 25t/h;
2, the outer water coolant of converter valve need to be interrupted moisturizing, belongs to non-closed system, adopts direct filtration treatment process.Utilize ultrafiltration to add the water treatment method of reverse osmosis, the calcium magnesium component that may cause fouling in removal system, while desalination, the 2540HR ultra-filtration membrane device that described ultrafiltration adopts U.S. Koch company to produce, design rating 30t/h, described reverse osmosis adopts LG-DOW company to produce the reverse osmosis unit of BW30-400 type, and design rating 25t/h, adopts water treatment method can thoroughly solve fouling blockage problem;
3, use ordinary method to regulate the flow of cooling water bypass electric salt remover input aperture water coolant in converter valve and the blowing time of electric desalination, flow control is at 1.0～5.0t/h, the specific conductivity of electric salt remover delivery port is controlled within the scope of 0.1～0.5 μ S/cm, blowing time specifically determines according to this specific conductivity span of control, for example blowdown 10 minutes when specific conductivity is 0.5 μ S/cm;
4, regulate the flow of ultra-fine filter entrance water coolant in outer cooling water system, maintaining ultra-fine filter, to go out aquatic products discharge be 20～25t/h, Silt density index table displayed value≤3.0, turbidimeter displayed value≤0.2NTU; Maintain the specific conductivity table displayed value≤10 μ S/cm of the delivery port of described reverse osmosis.
Claims (3)
1. a treatment unit for current conversion station water coolant, comprises the main circulation loop of water coolant and the outer cooling water system of converter valve in converter valve; It is characterized in that described main circulation loop is comprised of the converter valve connecting successively, interchanger, recycle pump, the first accurate filter and main circulation loop specific conductivity table, at the recycle pump of described main circulation loop, import and export and be provided with the bypass being formed by electric salt remover, the second accurate filter and shunt conductance rate table; Described outer cooling water system is comprised of the ultra-fine filter connecting successively, high-pressure pump, reverse osmosis, equalizing reservoir, at an outlet Silt density index table in parallel and a turbidimeter of described ultra-fine filter, at the outlet shunt conductance rate table of described reverse osmosis.
2. the treatment unit of current conversion station water coolant according to claim 1, is characterized in that being also provided with filling pipe between the import of described electric salt remover and circulation pump outlet.
3. the treatment unit of current conversion station water coolant according to claim 2, is characterized in that described recycle pump, high-pressure pump, electric salt remover are at least respectively in parallel two, and described reverse osmosis is two sections of one-levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320528354.4U CN203461913U (en) | 2013-08-28 | 2013-08-28 | Treatment device for cooling water in converter substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320528354.4U CN203461913U (en) | 2013-08-28 | 2013-08-28 | Treatment device for cooling water in converter substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203461913U true CN203461913U (en) | 2014-03-05 |
Family
ID=50174289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320528354.4U Expired - Fee Related CN203461913U (en) | 2013-08-28 | 2013-08-28 | Treatment device for cooling water in converter substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203461913U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435197A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN106630197A (en) * | 2016-12-28 | 2017-05-10 | 国家电网公司 | Device and method for adding carbon dioxide into inner cooling water of converter valve |
-
2013
- 2013-08-28 CN CN201320528354.4U patent/CN203461913U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435197A (en) * | 2013-08-28 | 2013-12-11 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN103435197B (en) * | 2013-08-28 | 2015-01-07 | 湖南省湘电试验研究院有限公司 | Method and device for treating cooling water of convertor station |
| CN106630197A (en) * | 2016-12-28 | 2017-05-10 | 国家电网公司 | Device and method for adding carbon dioxide into inner cooling water of converter valve |
| CN106630197B (en) * | 2016-12-28 | 2019-07-30 | 国家电网公司 | A kind of converter valve inner cold water adds carbon dioxide plant and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 |