CN103435197A - Method and device for treating cooling water of convertor station - Google Patents
Method and device for treating cooling water of convertor station Download PDFInfo
- Publication number
- CN103435197A CN103435197A CN2013103802527A CN201310380252A CN103435197A CN 103435197 A CN103435197 A CN 103435197A CN 2013103802527 A CN2013103802527 A CN 2013103802527A CN 201310380252 A CN201310380252 A CN 201310380252A CN 103435197 A CN103435197 A CN 103435197A
- Authority
- CN
- China
- Prior art keywords
- cooling water
- converter valve
- water coolant
- reverse osmosis
- circulation loop
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention discloses a method and a device for treating cooling water of a convertor station. The method comprises the steps that an internal cooling water bypass formed by an electric desalination device, a second precision filter and a bypass conductivity meter is added to a main circulation loop of cooling water in a converter valve and used for treating part of internal cooling water; in an external cooling water system of the converter valve, an ultrafilter and a reverse osmosis water treatment method are utilized to remove components of calcium and magnesium and salt which possibly cause scaling in the system, thus solving the problems of blockage caused by scaling, and the like. When the method and the device are used for treating cooling water of the convertor station, the problems of corrosion, scale formation and blockage caused by improper water treatment of cooling water of the convertor station can be thoroughly solved, so that direct current lockout or emergency shutdown accident caused by the problems of internal cooling water of the convertor station can be avoided.
Description
Technical field
The invention belongs to the HVDC Transmission Technology field, be specifically related to a kind for the treatment of process and device of current conversion station water coolant.
Background technology
Converter valve is the 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 the 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 the 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 adopted, unsatisfactory in actual moving process.Operation for some time corrosion and scaling, blockage problem often occur later.Main filter stoppage problem repeatedly appears in Bao'an current conversion station, causes the phenomenons such as the 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 dispels the heat and then cause straight-flow system to stop transport.The serious blockage problem of reverse osmosis membrane all appears in Jiangling current conversion station, Xingren current conversion station, high slope current conversion station, causes the reverse osmosis system unit to the equalizing reservoir moisturizing, to have a strong impact on the security of DC transmission system.
Summary of the invention
The technical problem to be solved in the present invention is, the deficiency existed for existing current conversion station cooling water treatment system design aspect, a kind for the treatment of process and device of current conversion station water coolant are 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 object of the invention is:
The treatment process of current conversion station water coolant provided by the invention, realize according to following steps:
Step 1, in the converter valve by connecting successively, install the first accurate filter and main circulation loop specific conductivity table additional on the main circulation loop of water coolant in the converter valve that interchanger and recycle pump form, import and export and increase by electric salt remover at the recycle pump of main circulation loop, the interior cooling water bypass that the second accurate filter and shunt conductance rate table form is processed water coolant in part, thereby make whole interior water coolant meet converter valve and move required water quality requirement, in bypass, utilize electric desalination [abbreviation that the English full name of EDI(is Electrodeionization)] control in the water coolant specific conductivity,
Step 2, in the outer cooling water system of converter valve, utilize ultra-fine filter [abbreviation that the English full name of UF(is Ultra-filtration)] to add the water treatment method of reverse osmosis [abbreviation that the English full name of RO(is Reverse Osmosis)], calcium magnesium component and the salinity that may cause fouling in the removal system, solve the fouling blockage problem; Outlet at described ultra-fine filter is an entrance Silt density index table (SDI) in parallel and a turbidimeter of reverse osmosis, at the outlet shunt conductance rate table of described reverse osmosis;
Step 3, the flow that uses electric salt remover input aperture water coolant in the interior cooling water bypass of ordinary method adjusting converter valve and the blowing time of electric salt remover, flow control is at 1.0～5.0t/h, the specific conductivity of electric salt remover delivery port is controlled in 0.1～0.5 μ S/cm scope, and blowing time is specifically determined according to this specific conductivity span of control;
Step 4, regulate the flow of ultra-fine filter entrance water coolant in described 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 of the delivery port of described reverse osmosis≤10 μ S/cm.
The treatment unit of current conversion station water coolant provided by the invention, comprise the main circulation loop of water coolant in converter valve and the outer cooling water system of converter valve; Described main circulation loop is comprised of the converter valve, interchanger, recycle pump, the first accurate filter and the main circulation loop specific conductivity table that connect successively, at the recycle pump of described main circulation loop, imports and exports and is provided with the bypass be 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, high-pressure pump, reverse osmosis, the equalizing reservoir that connect successively, 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.
Also be provided with filling pipe between the import of described electric salt remover and circulation pump outlet.
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 invention has the beneficial effects as follows:
Process the current conversion station water coolant by aforesaid method and device and can thoroughly solve corrosion and scaling and the blockage problem that the 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 the inner cold water problem; The advanced level of automation of equipment and technology is high, realizes unmanned fully, long service life, and the 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.
The accompanying drawing explanation
Accompanying drawing is the structural representation of apparatus of the present invention.
Embodiment
Referring to accompanying drawing, the treatment unit of current conversion station water coolant provided by the invention, comprise the main circulation loop of water coolant in converter valve and the outer cooling water system of converter valve; Described main circulation loop is by the change of current connected successively, 1, interchanger 9, recycle pump 6, the first accurate filter 3 and main circulation loop specific conductivity table 2 form, import and export and be provided with the bypass formed by electric salt remover 5, the second accurate filter 7 and shunt conductance rate table 8 at the recycle pump 6 of described main circulation loop, between the outlet of the import of described electric salt remover 5 and recycle pump 6, also be provided with filling pipe 4; Described outer cooling water system is comprised of the ultra-fine filter 16, high-pressure pump 13, reverse osmosis 12, the equalizing reservoir 10 that connect successively, the entrance of ultra-fine filter 16 is connected with running water pipe 17,15 and turbidimeters 14 of the outlet of ultra-fine filter 16 a Silt density index table (SDI) in parallel, 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 table of the EZ-SDI-1D-A type of being produced by U.S. Luo Di company 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 apparatus of the present invention:
1, utilize interior cooling water bypass to be processed water coolant in part, water coolant in part is processed, thereby make whole interior water coolant meet converter valve, move required water quality requirement.Utilize water coolant specific conductivity in electric salt remover 5 controls in interior cooling water bypass, 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 the direct filtration treatment process.Utilize ultrafiltration to add the water treatment method of reverse osmosis, the calcium magnesium component that may cause fouling in the removal system, the 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, adopt water treatment method can thoroughly solve the 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 in 0.1～0.5 μ S/cm scope, 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 of the delivery port of described reverse osmosis≤10 μ S/cm.
Claims (4)
1. the treatment process of a current conversion station water coolant is characterized in that realizing according to following steps:
Install the first accurate filter and main circulation loop specific conductivity table additional on the main circulation loop of water coolant in step 1, the converter valve that forms at converter valve, interchanger and recycle pump by connecting successively, increasing the interior cooling water bypass that is comprised of electric salt remover, the second accurate filter and shunt conductance rate table on the recycle pump of main circulation loop is imported and exported is processed water coolant in partly, thereby make whole interior water coolant meet converter valve and move required water quality requirement, utilize water coolant specific conductivity in electric desalination control in bypass;
Step 2, in the outer cooling water system of converter valve, utilize ultra-fine filter to add the water treatment method of reverse osmosis, calcium magnesium component and the salinity that may cause fouling in the removal system, solve the fouling blockage problem; Outlet at described ultra-fine filter is an entrance Silt density index table (SDI) in parallel and a turbidimeter of reverse osmosis, at the outlet shunt conductance rate table of described reverse osmosis;
Step 3, the flow that uses electric salt remover input aperture water coolant in the interior cooling water bypass of ordinary method adjusting converter valve and the blowing time of electric salt remover, flow control is at 1.0～5.0t/h, the specific conductivity of electric salt remover delivery port is controlled in 0.1～0.5 μ S/cm scope, and blowing time is specifically determined according to this specific conductivity span of control;
Step 4, regulate the flow of ultra-fine filter entrance water coolant in described 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 of the delivery port of described reverse osmosis≤10 μ S/cm.
2. the treatment unit of a current conversion station water coolant, comprise the main circulation loop of water coolant in converter valve and the outer cooling water system of converter valve; It is characterized in that described main circulation loop is comprised of the converter valve, interchanger, recycle pump, the first accurate filter and the main circulation loop specific conductivity table that connect successively, at the recycle pump of described main circulation loop, import and export and be provided with the bypass 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, high-pressure pump, reverse osmosis, the equalizing reservoir that connect successively, 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.
3. the treatment unit of current conversion station water coolant according to claim 2, is characterized in that also being provided with filling pipe between the import of described electric salt remover and circulation pump outlet.
4. the treatment unit of current conversion station water coolant according to claim 3, 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 |
|---|---|---|---|
| CN201310380252.7A CN103435197B (en) | 2013-08-28 | 2013-08-28 | Method and device for treating cooling water of convertor station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310380252.7A CN103435197B (en) | 2013-08-28 | 2013-08-28 | Method and device for treating cooling water of convertor station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103435197A true CN103435197A (en) | 2013-12-11 |
| CN103435197B CN103435197B (en) | 2015-01-07 |
Family
ID=49688948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310380252.7A Active CN103435197B (en) | 2013-08-28 | 2013-08-28 | Method and device for treating cooling water of convertor station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103435197B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556524A (en) * | 2014-11-17 | 2015-04-29 | 苏州鑫泽雅节能设备有限公司 | Cold/hot water treatment device for closed system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1013413C2 (en) * | 1999-10-28 | 2001-05-02 | Constructie En Systeembouw Ver | Water treatment installation, especially for manure, has a filter device provided between separation and electroflocking devices |
| CN102394551A (en) * | 2011-09-30 | 2012-03-28 | 广州高澜节能技术股份有限公司 | Direct current transmission converter valve cooling system |
| DE102011012775A1 (en) * | 2011-03-01 | 2012-09-06 | Arnim Beyer | Treating pool, preferably swimming pool containing bath water, comprises reducing chlorides and chlorates in bath water by electrolytic treatment of circulating bath water and supplying chlorine as chlorine base material for chlorination |
| CN202865040U (en) * | 2012-10-29 | 2013-04-10 | 郑州恒博科技有限公司 | Zero-release treatment system of external circulation cooling water for direct-current converter station |
| CN203461913U (en) * | 2013-08-28 | 2014-03-05 | 湖南省湘电试验研究院有限公司 | Treatment device for cooling water in converter substation |
-
2013
- 2013-08-28 CN CN201310380252.7A patent/CN103435197B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1013413C2 (en) * | 1999-10-28 | 2001-05-02 | Constructie En Systeembouw Ver | Water treatment installation, especially for manure, has a filter device provided between separation and electroflocking devices |
| DE102011012775A1 (en) * | 2011-03-01 | 2012-09-06 | Arnim Beyer | Treating pool, preferably swimming pool containing bath water, comprises reducing chlorides and chlorates in bath water by electrolytic treatment of circulating bath water and supplying chlorine as chlorine base material for chlorination |
| CN102394551A (en) * | 2011-09-30 | 2012-03-28 | 广州高澜节能技术股份有限公司 | Direct current transmission converter valve cooling system |
| CN202865040U (en) * | 2012-10-29 | 2013-04-10 | 郑州恒博科技有限公司 | Zero-release treatment system of external circulation cooling water for direct-current converter station |
| CN203461913U (en) * | 2013-08-28 | 2014-03-05 | 湖南省湘电试验研究院有限公司 | Treatment device for cooling water in converter substation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556524A (en) * | 2014-11-17 | 2015-04-29 | 苏州鑫泽雅节能设备有限公司 | Cold/hot water treatment device for closed system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103435197B (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204625367U (en) | Water purifying equipment | |
| CN201735918U (en) | Cutting working solution treatment and circular treatment device of linear cutting machine | |
| CN204097252U (en) | A kind of two water outlet water-saving reverse osmosis filter household water-purifying machine | |
| CN204454757U (en) | A kind of electroplating rinse water online recycling Zero discharging system | |
| CN203807257U (en) | Double-filter water purifying treatment device | |
| CN104150624A (en) | Treatment method for recycling silicon wafer grinding wastewater in semiconductor industry | |
| CN203461913U (en) | Treatment device for cooling water in converter substation | |
| CN103408152A (en) | Multistage purification system of high purity water | |
| CN202729915U (en) | Low-yield single-pump two-stage reverse osmosis system | |
| CN103435197B (en) | Method and device for treating cooling water of convertor station | |
| KR20120049870A (en) | Closed circuit desalination retrofit for improved performance of common reverse osmosis systems | |
| CN202208663U (en) | Seawater desalination treatment equipment | |
| CN203461912U (en) | Purification treatment device for inner cooling water of converter valves | |
| CN103626311A (en) | Low-yield single-pump two-stage reverse osmosis system | |
| CN203461911U (en) | Purification treatment device for outer cooling water of converter valves | |
| CN206215052U (en) | A kind of purifier | |
| CN103613230B (en) | Purification treatment method and device for converter valve outer cooling water | |
| CN103435196B (en) | Method and device for purification treatment of cooling water in converter valve | |
| CN210796085U (en) | Temperature compensation system of water treatment system | |
| CN204138480U (en) | Aircraft engine water for cleaning cleaner | |
| CN203451320U (en) | High-purity water multi-stage purification system | |
| CN208454655U (en) | A kind of cooling water machine for conticaster magnetic stirrer | |
| CN205442865U (en) | Seawater desalination's treatment facility | |
| CN202297261U (en) | Sea water desalination device using low-pressure membrane method | |
| CN213680139U (en) | Concentrated water reconcentration device of coating workshop pure water system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |