CN112028176A - 1000MW ultra-supercritical newly-built unit boiler makeup water debugging method - Google Patents
1000MW ultra-supercritical newly-built unit boiler makeup water debugging method Download PDFInfo
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- CN112028176A CN112028176A CN202010754843.6A CN202010754843A CN112028176A CN 112028176 A CN112028176 A CN 112028176A CN 202010754843 A CN202010754843 A CN 202010754843A CN 112028176 A CN112028176 A CN 112028176A
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- bed
- water
- cation
- anion
- debugging
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 238000000034 method Methods 0.000 title claims abstract description 28
- 150000001768 cations Chemical class 0.000 claims abstract description 47
- 150000001450 anions Chemical class 0.000 claims abstract description 45
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 69
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 42
- 238000011033 desalting Methods 0.000 claims description 18
- 238000011049 filling Methods 0.000 claims description 18
- 238000002791 soaking Methods 0.000 claims description 16
- 230000008929 regeneration Effects 0.000 claims description 9
- 238000011069 regeneration method Methods 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 238000011010 flushing procedure Methods 0.000 claims description 5
- 238000001223 reverse osmosis Methods 0.000 abstract description 15
- 239000012528 membrane Substances 0.000 abstract description 14
- 230000001172 regenerating effect Effects 0.000 abstract description 5
- 238000000108 ultra-filtration Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/60—Cleaning or rinsing ion-exchange beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/425—Treatment of water, waste water, or sewage by ion-exchange using cation exchangers
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a 1000MW ultra-supercritical newly-built unit boiler make-up water debugging method, which comprises the steps of cleaning and regenerating a cation bed through desalted water, cleaning and regenerating a anion bed through desalted water generated by the cation bed, cleaning a mixed bed through desalted water generated by the cation bed and the anion bed, sequentially connecting the cleaned cation bed, anion bed and mixed bed in series, and sequentially connecting raw water through the cation bed, the anion bed and the mixed bed to generate qualified desalted water; the demineralized water that generates directly is used for the debugging of equipment, compares with prior art, and in the earlier stage of equipment debugging, the raw water that does not conform to the requirement need not pass through ultrafiltration reverse osmosis unit, consequently can effectively avoid polluting reverse osmosis membrane because of quality of water is unqualified in the earlier stage of equipment debugging to reach the purpose of protection reverse osmosis membrane, extension its life.
Description
Technical Field
The invention relates to the technical field of debugging of thermal power generation equipment, in particular to a method for debugging boiler make-up water of a 1000MW ultra-supercritical newly-built unit.
Background
In the initial debugging of a 1000MW ultra-supercritical newly-built unit, under the condition that the water consumption of a whole water vapor system is not large, after the ultra-filtration reverse osmosis debugging of boiler make-up water is completed, the daily maintenance and maintenance work required by a reverse osmosis membrane is very complicated, a large amount of waste water can not be recycled, and the environment protection requires that the waste water cannot be discharged, so that the debugging work is influenced; secondly, in the initial debugging stage, the quality of the effluent of each device is poor, irreversible damage is caused to an ultrafiltration membrane and a reverse osmosis membrane, and the service life of the membrane is greatly reduced; qualified demineralized water is required for unit debugging.
Disclosure of Invention
Aiming at the defects of large environment-friendly discharge pressure and short service life of a reverse osmosis membrane in the prior art, the invention discloses a method for debugging the boiler make-up water of a 1000MW ultra-supercritical newly-built unit.
A1000 MW ultra supercritical newly-built unit boiler make-up water debugging method is characterized by comprising the following steps;
s1, filling filter resin in the cation bed, flushing the cation bed by using desalted water after filling, adding hydrochloric acid for soaking into the cation bed, and repeating the process until the cation bed is qualified in regeneration;
s2, conveying the raw water into the cation bed which is regenerated to be qualified in the step S1, and conveying the desalted water generated by the cation bed treatment to a desalted water tank for storage;
s3, filling filter resin in the anion bed, after filling, adopting the desalted water generated in the step S2 to wash the anion bed, then introducing sodium hydroxide to soak the anion bed, repeating the process until the anion bed is qualified in regeneration, and then emptying the desalted water tank;
s4, serially connecting the cation bed in the step S1 to the anion bed in the step S3, connecting the outlet end of the anion bed with a desalting water tank, introducing raw water into the cation bed, and conveying the generated desalting water to the desalting water tank;
s5, filling filter resin in the mixed bed, after filling, flushing the anion bed by using the desalted water generated in the step S4, alternately introducing hydrochloric acid and sodium hydroxide to soak the mixed bed, repeating the process until the anion bed is qualified in regeneration, and then emptying the desalted water tank;
and S6, sequentially connecting the cation bed in the step S1, the anion bed in the step S3 and the mixed bed in the step S5 in series, connecting the outlet end of the mixed bed to a desalting water tank, conveying raw water to the cation bed, the anion bed and the mixed bed, and conveying the generated desalting water to the desalting water tank for storage.
Preferably, the quality of the desalted water needs to be detected in the steps S2, S4 and S6, if the quality of the desalted water is not qualified, the steps S1, S3 and S5 are repeated to wash and regenerate the cation bed, the anion bed and the mixed bed until the quality of the desalted water is qualified;
preferably, the hydrochloric acid soaking time in the step S1 is 2-3 h; the soaking time of the sodium hydroxide in the step S3 is 2-3 h; the hydrochloric acid soaking time in the step S5 is 1-1.5h, and the sodium hydroxide soaking time is 1-1.5h
Preferably, the dosage of hydrochloric acid and sodium hydroxide in the first cleaning of the cation bed, the anion bed and the mixed bed is 1.3-1.7 times of the daily dosage
Preferably, hydrochloric acid with the mass fraction of 36% -39% is adopted in the steps S1, S3 and S5, and the mass fraction of sodium hydroxide is 35% -39%.
Compared with the prior art, the invention has the following beneficial effects:
1. the method comprises the steps of firstly cleaning and regenerating the cation bed through desalted water, cleaning and regenerating the anion bed through desalted water generated by the cation bed, repeating the above process to complete the cleaning and regeneration of the mixed bed, and finally preparing desalted water through the cation bed, the anion bed and the mixed bed in series; when the device is used, raw water is directly sent into the cation bed, the anion bed and the mixed bed for treatment, and desalted water is generated and directly used for debugging equipment;
simultaneously because reverse osmosis membrane can not polluted in the earlier stage of equipment debugging, consequently can effectively reduce the maintenance working strength of later stage equipment, also can effectively avoid the reverse osmosis membrane to maintain in the later stage simultaneously, the large amount of waste water that produces in the cleaning process, reduce the environmental protection discharge pressure of enterprise, it has better economy and social.
Detailed Description
The invention will be further illustrated by the following specific embodiments:
embodiment mode 1
The embodiment is taken as a basic embodiment of the invention and discloses a method for debugging the boiler make-up water of a 1000MW ultra-supercritical newly-built unit, which is characterized by comprising the following steps;
s1, filling filter resin in the cation bed, flushing the cation bed by using demineralized water after filling, and introducing hydrochloric acid for soaking into the cation bed, wherein the concentration of the used hydrochloric acid is 36-39% and the soaking time of the hydrochloric acid is 2-3h according to the process requirement; discharging hydrochloric acid after soaking, cleaning with demineralized water, introducing raw water, collecting the generated demineralized water for detection, if the product is qualified, the cation bed is qualified by regeneration, and if the product is not qualified, repeating the steps until the product is qualified;
s2, conveying the raw water into the cation bed which is regenerated to be qualified in the step S1, and conveying the desalted water generated by the cation bed treatment to a desalted water tank for storage; meanwhile, in the process of generating the demineralized water in the cation bed, the discharged demineralized water sample needs to be sampled and detected regularly or irregularly, and if the sample is not qualified, the step S1 is repeated to clean and regenerate the cation bed;
s3, filling filter resin in the anion bed, after filling, washing the anion bed by the desalted water generated in the step S2, and then introducing sodium hydroxide to soak the anion bed, wherein the concentration of the sodium hydroxide is 35-39% according to the process requirement, and the soaking time of the sodium hydroxide is 2-3 h; discharging sodium hydroxide after soaking, cleaning with demineralized water, introducing raw water, collecting the generated demineralized water for detection, if the detection is qualified, regenerating the anion bed to be qualified, and if the detection is not qualified, repeating the steps until the anion bed is qualified;
s4, serially connecting the cation bed in the step S1 to the anion bed in the step S3, connecting the outlet end of the anion bed with a desalting water tank, and conveying the generated desalting water to the desalting water tank; meanwhile, in the process of generating the demineralized water in the anion bed, the discharged demineralized water sample needs to be sampled and detected regularly or irregularly, and if the sample is not qualified, the step S1 is repeated to clean and regenerate the anion bed;
s5, filling filter resin in the mixed bed, after filling, adopting the desalted water generated in the step S4 to wash the anion bed, then alternately introducing hydrochloric acid and sodium hydroxide to soak the mixed bed,
according to the process requirement, the concentration of the used hydrochloric acid is 36-39%, and the soaking time of the hydrochloric acid is 1-1.5 h; discharging hydrochloric acid after soaking, then introducing 35-39% sodium hydroxide solution by mass for soaking for 1-1.5h, then emptying the sodium hydroxide solution, introducing raw water, collecting the generated desalted water for detection, if the sodium hydroxide solution is qualified, determining that the cation bed is qualified for regeneration, and if the sodium hydroxide solution is not qualified, repeating the steps until the sodium hydroxide solution is qualified;
s6, sequentially connecting the cation bed in the step S1, the anion bed in the step S3 and the mixed bed in the step S5 in series, connecting the outlet end of the mixed bed to a desalting water tank, conveying raw water to the cation bed, the anion bed and the mixed bed, and conveying the generated desalting water to the desalting water tank for storage; meanwhile, in the process of generating the demineralized water by the mixed bed, the discharged demineralized water sample needs to be sampled and detected regularly or irregularly, and if the demineralized water sample is unqualified, the step S1 is repeated to clean and regenerate the mixed bed;
preferably, the dosage of hydrochloric acid and sodium hydroxide in the first cleaning of the cation bed, the anion bed and the mixed bed is 1.3-1.7 times of the daily dosage
When the device is used, raw water is directly sent into the cation bed, the anion bed and the mixed bed for treatment, and desalted water is generated and directly used for debugging equipment, but unqualified raw water is not directly sent into the equipment to complete the clean debugging of the equipment, so that the raw water which does not meet the requirements does not need to pass through an ultrafiltration reverse osmosis device in the early stage of the equipment debugging, and the pollution of the reverse osmosis membrane caused by unqualified water quality in the early stage of the equipment debugging can be effectively avoided, thereby achieving the purposes of protecting the reverse osmosis membrane and prolonging the service life of the reverse osmosis membrane;
simultaneously because reverse osmosis membrane can not polluted in the earlier stage of equipment debugging, consequently can effectively reduce the maintenance working strength of later stage equipment, also can effectively avoid the reverse osmosis membrane to maintain in the later stage simultaneously, the large amount of waste water that produces in the cleaning process, reduce the environmental protection discharge pressure of enterprise, it has better economy and social.
Claims (5)
1. A1000 MW ultra supercritical newly-built unit boiler make-up water debugging method is characterized by comprising the following steps;
s1, filling filter resin in the cation bed, flushing the cation bed by using desalted water after filling, adding hydrochloric acid for soaking into the cation bed, and repeating the process until the cation bed is qualified in regeneration;
s2, conveying the raw water into the cation bed which is regenerated to be qualified in the step S1, and conveying the desalted water generated by the cation bed treatment to a desalted water tank for storage;
s3, filling filter resin in the anion bed, after filling, adopting the desalted water generated in the step S2 to wash the anion bed, then introducing sodium hydroxide to soak the anion bed, repeating the process until the anion bed is qualified in regeneration, and then emptying the desalted water tank;
s4, serially connecting the cation bed in the step S1 to the anion bed in the step S3, connecting the outlet end of the anion bed with a desalting water tank, introducing raw water into the cation bed, and conveying the generated desalting water to the desalting water tank;
s5, filling filter resin in the mixed bed, after filling, flushing the anion bed by using the desalted water generated in the step S4, alternately introducing hydrochloric acid and sodium hydroxide to soak the mixed bed, repeating the process until the anion bed is qualified in regeneration, and then emptying the desalted water tank;
and S6, sequentially connecting the cation bed in the step S1, the anion bed in the step S3 and the mixed bed in the step S5 in series, connecting the outlet end of the mixed bed to a desalting water tank, conveying raw water to the cation bed, the anion bed and the mixed bed, and conveying the generated desalting water to the desalting water tank for storage.
2. The method for debugging the boiler makeup water of the 1000MW ultra-supercritical new unit according to claim 1, characterized in that: and (3) detecting the quality of the desalted water in the steps S2, S4 and S6, and if the quality of the desalted water is not qualified, repeating the steps S1, S3 and S5 to wash and regenerate the cation bed, the anion bed and the mixed bed until the quality of the desalted water is qualified.
3. The method for debugging the boiler makeup water of the 1000MW ultra-supercritical new unit according to claim 1, characterized in that: the soaking time of the hydrochloric acid in the step S1 is 2-3 h; the soaking time of the sodium hydroxide in the step S3 is 2-3 h; in the step S5, the hydrochloric acid is soaked for 1-1.5h, and the sodium hydroxide is soaked for 1-1.5 h.
4. The method for debugging the boiler makeup water of the 1000MW ultra-supercritical new unit according to claim 1, characterized in that: the dosage of the hydrochloric acid and the sodium hydroxide of the cation bed, the anion bed and the mixed bed in the first cleaning is 1.3 to 1.7 times of the daily dosage.
5. The method for debugging the boiler makeup water of the 1000MW ultra-supercritical new unit according to claim 1, characterized in that: the hydrochloric acid with the mass fraction of 36% -39% is adopted in the steps S1, S3 and S5, and the mass fraction of the sodium hydroxide is 35% -39%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010754843.6A CN112028176A (en) | 2020-07-31 | 2020-07-31 | 1000MW ultra-supercritical newly-built unit boiler makeup water debugging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010754843.6A CN112028176A (en) | 2020-07-31 | 2020-07-31 | 1000MW ultra-supercritical newly-built unit boiler makeup water debugging method |
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| Publication Number | Publication Date |
|---|---|
| CN112028176A true CN112028176A (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010754843.6A Pending CN112028176A (en) | 2020-07-31 | 2020-07-31 | 1000MW ultra-supercritical newly-built unit boiler makeup water debugging method |
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| CN (1) | CN112028176A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116777259A (en) * | 2023-05-10 | 2023-09-19 | 华能山东发电有限公司白杨河发电厂 | Control method of yin-yang bed for step-by-step desalination |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291484A (en) * | 2014-09-30 | 2015-01-21 | 杭州安耐杰科技有限公司 | High-efficiency environment-friendly desalted water production method |
| CN207153718U (en) * | 2017-07-05 | 2018-03-30 | 鄂尔多斯市君正能源化工有限公司 | A kind of strong acid, strong base ion exchange bed program control automatic regenerating unit |
| CN110282696A (en) * | 2019-07-24 | 2019-09-27 | 中国能源建设集团西北电力试验研究院有限公司 | A kind of equipment and its preparation process for temporarily producing qualified demineralized water |
-
2020
- 2020-07-31 CN CN202010754843.6A patent/CN112028176A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291484A (en) * | 2014-09-30 | 2015-01-21 | 杭州安耐杰科技有限公司 | High-efficiency environment-friendly desalted water production method |
| CN207153718U (en) * | 2017-07-05 | 2018-03-30 | 鄂尔多斯市君正能源化工有限公司 | A kind of strong acid, strong base ion exchange bed program control automatic regenerating unit |
| CN110282696A (en) * | 2019-07-24 | 2019-09-27 | 中国能源建设集团西北电力试验研究院有限公司 | A kind of equipment and its preparation process for temporarily producing qualified demineralized water |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116777259A (en) * | 2023-05-10 | 2023-09-19 | 华能山东发电有限公司白杨河发电厂 | Control method of yin-yang bed for step-by-step desalination |
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Application publication date: 20201204 |