CN102659271B - Method for treating cooling water in generators of 600 MW and above - Google Patents
Method for treating cooling water in generators of 600 MW and above Download PDFInfo
- Publication number
- CN102659271B CN102659271B CN 201210150790 CN201210150790A CN102659271B CN 102659271 B CN102659271 B CN 102659271B CN 201210150790 CN201210150790 CN 201210150790 CN 201210150790 A CN201210150790 A CN 201210150790A CN 102659271 B CN102659271 B CN 102659271B
- Authority
- CN
- China
- Prior art keywords
- electric salt
- salt remover
- value
- cooling water
- delivery port
- 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.)
- Active
Links
- 239000000498 cooling water Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 29
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 63
- 150000003839 salts Chemical class 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 239000002826 coolant Substances 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 241000372132 Hydrometridae Species 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000012498 ultrapure water Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 238000009296 electrodeionization Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 229910021642 ultra pure water Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a method for treating cooling water in generators of 600 MW and above. The method comprises the following steps of: (1) replacing a bypass small mixing bed in a cooling water tank in a to-be-treated generator of 600 MW and above with an electric demineralizer, wherein a metering pump and a pH gauge are connected in parallel to the input port of the electric demineralizer; the pH gauge is further connected to an electrical conductivity gauge; and another pH gauge and another electrical conductivity gauge are connected in series to the output port of the electric demineralizer; (2) adjusting the flow rate of the cooling water and determining drainage time; (3) adjusting the pH value of the cooling water at the input port to be consistent with that at the output port;(4) collecting high deviation of the electrical conductivity of cooling water in the generator; and (5) stopping or adding in sodium hydroxide solution until pH value is in the range of 8.0-9.0 and consistent with that at the output port. The method has the following advantages that the quality of the cooling water measures up to national regulations; the service life of the generator can be prolonged by 10 years; and with unattended operation, the labor and materials are saved, and the method is efficient and convenient.
Description
Technical field
The invention belongs to the electrical engineering field, be specifically related to the treatment process of a kind of 600MW and above generator internal cooling water.
Background technology
Be arranged on the 600MW of nuclear power plant, thermal power plant and hydroelectric power plant and the stator winding of above high-rating generator and the rotor winding of 600MW and above large-scale double water innercooling electric generator and usually adopt the high purity water circulating cooling.Water Quality for Inner Cooling Generator is defective will cause generator hollow core copper conductor corrosion and scaling and obstruction.Stop up and to cause when serious generator line rod local overheating even to burn, often be forced to promptly reduce load or shut down maintenance.For example Yueyang Huaneng electrical power station, defective with regard to once occuring because of cooling water quality, corrodes the major accident that stops up the hollow copper conductor and cause generator to be burnt.Therefore, in order to guarantee the safety and economic operation of thermal power plant, must process generator internal cooling water.Generator Inner Cooling Water Treatment Methods commonly used has following several:
1, adding the English full name of BTA(is the abbreviation of 1,2,3-Benzotrialole, and its Chinese translation is benzotriazole) and the derivative inhibiter, cause depositing because complex reaction easily occurs for inhibiter and cupric ion, so this method is eliminated;
2, remove by resin that in water, zwitterion purifies water.Water coolant work-ing life due to this kind method after purifying is some months only, needs frequently to change, so method is less economical and complicated operation and inadvisable;
3, little alkalinisation treatment method, this method resin used work-ing life was over 1 year, but directly discarded after losing efficacy, cause the waste of a large amount of resins, and be difficult to satisfy in the new Large Generator Internal Cooling Water Quality of promulgating of country and systems technology requirement DL/T801-2010 the pH value in the requirement of 8.0～9.0 scopes.
Summary of the invention
The technical problem to be solved in the present invention is, exist the cooling water quality that can not make after processing for the treatment process of existing 600MW and above generator internal cooling water and satisfy that national up-to-date issuing standard, resin are frequently changed, less economical defective, the treatment process of a kind of improved 600MW and above generator internal cooling water is provided, use the method can make the pH value of generator internal cooling water remain on 8.0～9.0 scopes under dissolved oxygen conditions, and needn't frequently change resin, labor and material saving, very economical.
Technical solution of the present invention is that the above-mentioned 600MW that provides and the treatment process of above generator internal cooling water are to be following steps:
(1), with the little mixed bed of bypass in pending 600MW and above generator internal cooling water case, [the English full name of EDI(is the abbreviation of Electrodeionization to be replaced by an electric salt remover that yin and yang resin is housed.）】。Volume pump and pH table that can conveniently measure 0.5～1.0% mass concentration sodium hydroxide (NaOH) solution in parallel in the input aperture of this electric salt remover.The peak flow of described volume pump is 1.0L/h.The other end of described pH table also connects a specific conductivity table.And at the delivery port of described electric salt remover also connect successively pH table and a specific conductivity table;
(2), comparison is connected in the specific conductivity that step (1) is changed the specific conductivity that the specific conductivity table of electric salt remover input aperture shows and the specific conductivity table demonstration that is connected in this electric salt remover delivery port.Regulate the flow of the water coolant of described electric salt remover input aperture, the cooling water flow regulation range is 1.0～2.0t/h.Control the scope of the specific conductivity of this electric salt remover delivery port, the span of control of described specific conductivity is 0.4～2.0 μ S/cm.Use ordinary method to determine the blowing time of described electric salt remover;
(3), take to add the mode of 0.5～1.0% mass concentration sodium hydroxide solution in the delivery port of described electric salt remover, regulate the pH value of water coolant of the delivery port of this electric salt remover, water coolant pH value regulation range is 8.0～9.0.Comparison is connected in the pH value of the pH table demonstration of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover.Add 0.5～1.0% mass concentration sodium hydroxide solution until the pH value that the pH table of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover shows is consistent in the delivery port of described electric salt remover.Therefore the add-on of 0.5～1.0% mass concentration sodium hydroxide solution is determined by the pH value of the final water coolant of determining;
(4), when the shown conductivity value of the specific conductivity table of the input aperture of above-mentioned electric salt remover surpasses 2.0 μ S/cm, show that namely the specific conductivity of generator internal cooling water is higher, select the high position that one of following two kinds of measures correct the generator internal cooling water specific conductivity and depart from:
1), use ordinary method to change generator internal cooling water until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope;
2), use ordinary method to get rid of dirt in described electric salt remover until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope;
(5), when the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table greater than 9.0, the pH value that namely shows generator internal cooling water is higher, stops 0.5～1.0% mass concentration sodium hydroxide solution in above-mentioned steps (3) adding toward described electric salt remover delivery port; When the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table less than 8.0, the pH value that namely shows generator internal cooling water is on the low side, continue to add 0.5～1.0% mass concentration sodium hydroxide solution toward the delivery port of described electric salt remover, until the pH value that the pH of described electric salt remover input aperture table shows falls into the water coolant pH value regulation range of step (3) described 8.0～9.0, and to show shown pH value consistent with the pH of described electric salt remover delivery port.
The invention has the beneficial effects as follows:
(1), water quality is good.Can make the water outlet conductivity of electric salt remover reach the standard of ultrapure water, the amount that adds 0.5～1.0% mass concentration sodium hydroxide solution by control makes Water Quality for Inner Cooling Generator satisfy the Water Quality for Inner Cooling Generator regulation of " Large Generator Internal Cooling Water Quality and systems technology require (DL/T801-2010) " of country's promulgation;
(2), use economy.In electric salt remover operation time, can be realized the regeneration of exhausted resin in body, makes thus the work-ing life of resin more than prolonged for another ten years, and economic benefit is obvious;
(3), efficient convenient.The regeneration of the exhausted resin of electric salt remover does not need manual operation, can realize full-automatic unmanned on duty, labor and material saving.
Embodiment
Embodiment 1:
(1), with the little mixed bed of bypass in a pending 600MW generator internal cooling water case, be replaced by an electric salt remover that yin and yang resin is housed, the processing water yield that this electric salt remover adopts Lai Te Rider, Dalian company to produce is the electric salt remover of 2t/h.Volume pump and pH table that can conveniently measure 0.5～1.0% mass concentration sodium hydroxide solution in parallel in the input aperture of this electric salt remover.The other end of described pH table also connects a specific conductivity table.And at the delivery port of described electric salt remover also connect successively pH table and a specific conductivity table.The above-mentioned volume pump that can conveniently measure 0.5～1.0% mass concentration sodium hydroxide solution, adopting model is the special electromagnetic drive diaphragm type of the general sieve name of the Germany's product precision metering pump of Gamma/L, the top hole pressure of this volume pump is 1.0MPa, flow 0.76L/h.The polymetron 9135 type pH tables that above-mentioned pH table all adopts U.S. Hash company to produce.The polymetron 9125 type electric conductivity tables that above-mentioned specific conductivity table all adopts U.S. Hash company to produce;
(2), comparison is connected in the specific conductivity that step (1) is changed the specific conductivity that the specific conductivity table of electric salt remover input aperture shows and the specific conductivity table demonstration that is connected in this electric salt remover delivery port.Regulate the flow of the water coolant of described electric salt remover input aperture, the cooling water flow regulation range is 1.0～2.0t/h.Control the scope of the specific conductivity of this electric salt remover delivery port, the span of control of described specific conductivity is 0.4～2.0 μ S/cm.Use ordinary method to determine the blowing time of described electric salt remover;
(3), take to add the mode of 0.5～1.0% mass concentration sodium hydroxide solution in the delivery port of described electric salt remover, regulate the pH value of water coolant of the delivery port of this electric salt remover, water coolant pH value regulation range is 8.0～9.0.Comparison is connected in the pH value of the pH table demonstration of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover.Add 0.5～1.0% mass concentration sodium hydroxide solution until the pH value that the pH table of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover shows is consistent in the delivery port of described electric salt remover;
(4), when the shown conductivity value of the specific conductivity table of the input aperture of above-mentioned electric salt remover surpasses 2.0 μ S/cm, use ordinary method to change generator internal cooling water until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope:
(5), when the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table greater than 9.0, stop adding of the past described electric salt remover delivery port of 0.5～1.0% mass concentration sodium hydroxide solution in above-mentioned steps (3); When the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table less than 8.0, continue to add 0.5～1.0% mass concentration sodium hydroxide solution toward the delivery port of described electric salt remover, until the pH value that the pH of described electric salt remover input aperture table shows falls into the water coolant pH value regulation range of step (3) described 8.0～9.0, and to show shown pH value consistent with the pH of described electric salt remover delivery port.
Embodiment 2:
Step (1)～(3) are with embodiment 1;
(4), when the shown conductivity value of the specific conductivity table of the input aperture of above-mentioned electric salt remover surpasses 2.0 μ S/cm, use ordinary method to get rid of dirt in described electric salt remover until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope;
Step (5) is with embodiment 1.
Claims (1)
1. the treatment process of a 600MW and above generator internal cooling water, the method is following steps:
(1), with the little mixed bed of bypass in pending 600MW and above generator internal cooling water case, be replaced by an electric salt remover that yin and yang resin is housed, volume pump and a pH table at the input aperture of this electric salt remover convenient metering 0.5～1.0% mass concentration sodium hydroxide (NaOH) solution in parallel, the peak flow of described volume pump is 1.0L/h, the other end of described pH table also connects a specific conductivity table, and at the delivery port of described electric salt remover also connect successively a pH table and a specific conductivity table;
(2), comparison is connected in the specific conductivity that step (1) is changed the specific conductivity that the specific conductivity table of electric salt remover input aperture shows and the specific conductivity table demonstration that is connected in this electric salt remover delivery port, regulate the flow of the water coolant of described electric salt remover input aperture, the cooling water flow regulation range is 1.0～2.0t/h, control the scope of the specific conductivity of this electric salt remover delivery port, the span of control of described specific conductivity is 0.4～2.0 μ S/cm, uses ordinary method to determine the blowing time of described electric salt remover;
(3), take to add the mode of 0.5～1.0% mass concentration sodium hydroxide solution in the delivery port of described electric salt remover, regulate the pH value of water coolant of the delivery port of this electric salt remover, water coolant pH value regulation range is 8.0～9.0, comparison is connected in the pH value of the pH table demonstration of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover, add 0.5～1.0% mass concentration sodium hydroxide solution until the pH value that the pH table of the pH value that the pH table of the input aperture of above-mentioned electric salt remover shows and the delivery port that is connected in this electric salt remover shows is consistent in the delivery port of described electric salt remover,
(4), when the shown conductivity value of the specific conductivity table of the input aperture of above-mentioned electric salt remover surpasses 2.0 μ S/cm, select the high position that one of following two kinds of measures correct the generator internal cooling water specific conductivity and depart from:
1), use ordinary method to change generator internal cooling water until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope;
2), use ordinary method to get rid of dirt in described electric salt remover until the shown conductivity value of this specific conductivity table returns 0.4～2.0 μ S/cm scope;
(5), when the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table greater than 9.0, stop adding of the past described electric salt remover delivery port of 0.5～1.0% mass concentration sodium hydroxide solution in above-mentioned steps (3); When the shown pH value of the pH of the input aperture of above-mentioned electric salt remover table less than 8.0, continue to add 0.5～1.0% mass concentration sodium hydroxide solution toward the delivery port of described electric salt remover, until the pH value that the pH of described electric salt remover input aperture table shows falls into the water coolant pH value regulation range of step (3) described 8.0～9.0, and to show shown pH value consistent with the pH of described electric salt remover delivery port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210150790 CN102659271B (en) | 2012-05-16 | 2012-05-16 | Method for treating cooling water in generators of 600 MW and above |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210150790 CN102659271B (en) | 2012-05-16 | 2012-05-16 | Method for treating cooling water in generators of 600 MW and above |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102659271A CN102659271A (en) | 2012-09-12 |
| CN102659271B true CN102659271B (en) | 2013-05-22 |
Family
ID=46768888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210150790 Active CN102659271B (en) | 2012-05-16 | 2012-05-16 | Method for treating cooling water in generators of 600 MW and above |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102659271B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631816A (en) * | 2003-12-24 | 2005-06-29 | 蒋如丰 | Method for recovering and treating boiler sewage of large-scale steam power plant |
| CN1843954A (en) * | 2006-04-20 | 2006-10-11 | 裴锋 | Method for conditioning cool water quality in large-sized power generator and monitor control system |
| CN1896009A (en) * | 2006-06-09 | 2007-01-17 | 江西省电力科学研究院 | Alkalescent water-quality treatment and treating system for double-internal water-cooled generator |
-
2012
- 2012-05-16 CN CN 201210150790 patent/CN102659271B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631816A (en) * | 2003-12-24 | 2005-06-29 | 蒋如丰 | Method for recovering and treating boiler sewage of large-scale steam power plant |
| CN1843954A (en) * | 2006-04-20 | 2006-10-11 | 裴锋 | Method for conditioning cool water quality in large-sized power generator and monitor control system |
| CN1896009A (en) * | 2006-06-09 | 2007-01-17 | 江西省电力科学研究院 | Alkalescent water-quality treatment and treating system for double-internal water-cooled generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102659271A (en) | 2012-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1843954A (en) | Method for conditioning cool water quality in large-sized power generator and monitor control system | |
| CN112760666A (en) | Hydrogen production and hydrogen supplement system of hydrogen cooling unit and working method thereof | |
| CN102659271B (en) | Method for treating cooling water in generators of 600 MW and above | |
| CN210419609U (en) | System for preparing boiler demineralized water by utilizing circulating water | |
| CN206188890U (en) | Proton exchange membrane water electrolytic ozone oxygen generating device with from purification performance | |
| AU2012350645B2 (en) | Solar energy and external source steam complementary power generation apparatus | |
| CN203461912U (en) | Purification treatment device for inner cooling water of converter valves | |
| CN202576121U (en) | Cold water quality stabilizing device in power generator | |
| CN201530735U (en) | Alkalescence purification treatment device for cold water in generator | |
| CN100999338A (en) | Power generator internal cooling water oxygen removal or electrolemma microalkalination treatment device and its treatment method | |
| CN203890098U (en) | Generator internal-cooling water quality stable optimizing device | |
| CN204389656U (en) | Can the fuel battery test system of cyclic electrolysis hydrogen manufacturing | |
| CN203639200U (en) | Cooling water purifying device in electric generator | |
| CN105174377A (en) | Resin exchanger for treatment of power generator internal cooling water | |
| CN113737201A (en) | System and method for peak shaving of thermal power plant by electrolyzing concentrated water to prepare hydrogen | |
| CN113461137A (en) | Sequencing batch type feeding device and method for improving ozone dissolved air and utilization efficiency | |
| CN204454694U (en) | A kind of for 1000MW set generator internal cooling water device | |
| CN204417251U (en) | The micro-alkalinisation treatment device of inner cold water nanofiltration | |
| CN103435196B (en) | Method and device for purification treatment of cooling water in converter valve | |
| CN205294906U (en) | Generator inner cooling water handles and uses resin interchanger | |
| CN206985933U (en) | A kind of marine solar formula sea water by distillation purifier | |
| CN219860886U (en) | Nuclear power station unsafe ventilation cooling water system water quality purification device | |
| CN101508473B (en) | Purifier apparatus | |
| CN220079206U (en) | PEM (PEM) water electrolysis hydrogen production device adopting magnetic field to enhance energy | |
| CN102659234A (en) | Method for treating cooling water in generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: HU'NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LT Free format text: FORMER OWNER: HU'NAN XIANGDIAN TRIAL RESEARCH TECHNOLOGY CO., LTD. Effective date: 20121101 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121101 Address after: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Applicant after: Science Research Institute of Hunan Electric Power Co., Ltd. Applicant after: Hunan Xiangdian Electric Power Text & Research Co., Ltd. Applicant after: State Grid Corporation of China Address before: 410007 No. 79 hydroelectric power street, east pond, Hunan, Changsha Applicant before: Science Research Institute of Hunan Electric Power Co., Ltd. Applicant before: Hunan Xiangdian Electric Power Text & Research Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180713 Address after: 410004 398 new Shao Dong Road, Tianxin District, Changsha, Hunan Co-patentee after: Power Science Research Institute of Hunan Electric Power Co., Ltd. Patentee after: State Grid Hunan Electric Power Co., Ltd. Co-patentee after: State Grid Corporation of China Address before: No. 79, Dongtang hydropower street, Changsha, Hunan Province Co-patentee before: Hunan Xiangdian Electric Power Text & Research Co., Ltd. Patentee before: Science Research Institute of Hunan Electric Power Co., Ltd. Co-patentee before: State Grid Corporation of China |
|
| TR01 | Transfer of patent right |