CN106830186A - A kind of technique of condensed water precision processing system operation - Google Patents
A kind of technique of condensed water precision processing system operation Download PDFInfo
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- CN106830186A CN106830186A CN201710076231.4A CN201710076231A CN106830186A CN 106830186 A CN106830186 A CN 106830186A CN 201710076231 A CN201710076231 A CN 201710076231A CN 106830186 A CN106830186 A CN 106830186A
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- 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
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- 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
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- 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
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention belongs to nuclear power station condensation water precision processing technical field, and in particular to a kind of technique of condensed water precision processing system operation；The purpose of the present invention is, it is not enough for prior art, offer is a kind of to realize that precision processing system can take into account operation and hot standby operating mode during stable operation of unit, to reach the technique for purifying water and ensureing unit safety, the purpose condensed water precision processing system operation of energy-saving and emission-reduction；The beneficial effects of the invention are as follows：1) influence of the condensed water precision processing system switching to secondary circuit water quality is reduced；2) acid, the alkali consumption of precision processing system regeneration during reducing unit operation, and waste water yield and desalination water consumption；3) ammonia residual of secondary circuit during reducing unit operation；4) can be come into operation immediately in condensate water quality deterioration, it is ensured that water quality.
Description
Technical field
The invention belongs to nuclear power station condensation water precision processing technical field, and in particular to a kind of condensed water precision processing system operation
Technique.
Background technology
Two nuclear power generating sets are each configured with a set of solidifying crystal's processing system, and systemic-function is again polished condensate water quality,
Metal impurities and the ionic impurities such as removal metallic corrosion products.Condensed water precision processing system includes mechanical filtration systems (five sun
Bed), ion exchange system (five mixed beds), external regeneration system, waste water drainage system.
The method of operation of domestic and international nuclear power station condensation water precision processing system is generally two kinds, and one is passed through for condensate 100%
Cross precision processing；Secondly being that condensed water precision processing system comes into operation during opening machine, after unit full power, condensed water precision processing system is moved back
Go out operation.First way, can fully ensure that the water quality of condensate, but filter regeneration frequency is higher, acid, alkali, desalination
Water consumption is big, and waste water is more.The second way is when the super design leakage situation of condenser is run into, it is impossible to precision processing system of timely coming into operation
System, it will have influence on water quality, and unit operation, it is very dangerous.
Nuclear power station unit station start when, condensate need 100% by precision processing system, maximum stream flow is 3600m3/h。
During unit Operation at full power, cation bed and mixed bed are four standby with one, and about 30% flow is opened in bypass, and feedwater PH controls are in 9.4-9.6.
But, because water quality is excellent after set steady, secondary circuit water quality occurs fluctuation in precision processing filter handoff procedure, and
It is to have adsorbed the ammonia added in secondary circuit because condensate is best in quality, the reason for the failure of filter, filling in a cation bed
There is 14.6 cubes of resin, regeneration demineralized water once is lost 600 tons, because frequency is higher, soda acid loss is big, desalination water consumption
Greatly, waste water yield is more.
The content of the invention
The purpose of the present invention is to realize precision processing system in stable operation of unit in view of the shortcomings of the prior art, providing one kind
Period can take into account operation and hot standby operating mode, and the purpose condensate of unit safety, energy-saving and emission-reduction is ensured to reach to purify water
The technique of precision processing system operation.
The technical scheme is that：
A kind of technique of condensed water precision processing system operation, comprises the following steps：
First, condensed water precision processing system is improved, 1 point by condensing water conduit of the system after improvement is two-way, one
Precision processing system pipeline, i.e. pipeline 15 are flowed through in road for condensate, and another road is the pipeline 14 that condensate bypasses precision processing system, pipe
No. 1 to No. 5 cation bed is in parallel successively on road 15, and on pipeline 14, No. 1 to No. 5 mixed bed is in parallel successively；
Then, based on improved condensed water precision processing system, after stable operation of unit, adjustment precision processing system bypass
Flow, precision processing system can be switched to four kinds of patterns and be run.
In condensed water precision processing system after improvement, the flow that condensate flows through precision processing system is：Condensate is by pipe
Road 15 enters precision processing system, and 1-5 cation beds are entered by pipeline 2-6, and main pipe pipeline 7 is out imported afterwards from cation bed, then by pipeline
8-12 enters 1-5 mixed beds, main pipe pipeline 13 is out imported afterwards from mixed bed, return to condensate system pipeline 16；
Condensate bypass precision processing flow be：Condensate flows through precision processing system bypass duct 14 and valve by pipeline 1
Door 1 and valve 2, return to condensate system pipeline 16；
Precision processing system is adjusted by valve 2 on precision processing system bypass duct 14 and flows through bypass in 0-3 mode operations
Flow, to meet the flow of precision processing system filter under each operating mode.
Four kinds of patterns include：
That is 0+4 patterns, cation bed system zero row big flow, four row low discharges；The row big flow of mixed-bed system one, three row are hot standby；
1+3 patterns, the row big flow of cation bed system one, three row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
2+2 patterns, the row big flow of cation bed system two, two row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
3+1 patterns, the row big flow of cation bed system three, a row low discharge；The row big flow of mixed-bed system three, a row are hot standby.
Big flow be flow in 140-150kg/s, in 35-50kg/s, the hot standby of mixed bed is gateway to the low discharge of cation bed
Valve is opened, and adjusts valve to close.
The beneficial effects of the invention are as follows：
1) influence of the condensed water precision processing system switching to secondary circuit water quality is reduced；
2) acid, the alkali consumption of precision processing system regeneration during reducing unit operation, and waste water yield and desalination water consumption；
3) ammonia residual of secondary circuit during reducing unit operation；
4) can be come into operation immediately in condensate water quality deterioration, it is ensured that water quality.
Brief description of the drawings
Fig. 1 is a kind of condensed water precision processing system structure chart.
Specific embodiment
The technique run to a kind of condensed water precision processing system proposed by the present invention with embodiment below in conjunction with the accompanying drawings
Further introduced：
A kind of technique of condensed water precision processing system operation, comprises the following steps：
First, condensed water precision processing system is improved, 1 point by condensing water conduit of the system after improvement is two-way, one
Precision processing system pipeline, i.e. pipeline 15 are flowed through in road for condensate, and another road is the pipeline 14 that condensate bypasses precision processing system, pipe
No. 1 to No. 5 cation bed is in parallel successively on road 15, and on pipeline 14, No. 1 to No. 5 mixed bed is in parallel successively；
Then, based on improved condensed water precision processing system, after stable operation of unit, adjustment precision processing system bypass
Flow, precision processing system can be switched to four kinds of patterns and be run.
In condensed water precision processing system after improvement, the flow that condensate flows through precision processing system is：Condensate is by pipe
Road 15 enters precision processing system, and 1-5 cation beds are entered by pipeline 2-6, and main pipe pipeline 7 is out imported afterwards from cation bed, then by pipeline
8-12 enters 1-5 mixed beds, main pipe pipeline 13 is out imported afterwards from mixed bed, return to condensate system pipeline 16；
Condensate bypass precision processing flow be：Condensate flows through precision processing system bypass duct 14 and valve by pipeline 1
Door 1 and valve 2, return to condensate system pipeline 16；
Precision processing system is adjusted by valve 2 on precision processing system bypass duct 14 and flows through bypass in 0-3 mode operations
Flow, to meet the flow of precision processing system filter under each operating mode.
Four kinds of patterns include：
That is 0+4 patterns, cation bed system zero row big flow, four row low discharges；The row big flow of mixed-bed system one, three row are hot standby；
1+3 patterns, the row big flow of cation bed system one, three row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
2+2 patterns, the row big flow of cation bed system two, two row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
3+1 patterns, the row big flow of cation bed system three, a row low discharge；The row big flow of mixed-bed system three, a row are hot standby.
Big flow be flow in 140-150kg/s, in 35-50kg/s, the hot standby of mixed bed is gateway to the low discharge of cation bed
Valve is opened, and adjusts valve to close.
Four kinds of patterns of precision processing system can switch over adjustment with the startup of unit, operation, and unit starting is latter
Week, the water quality data of steam generator blowdown water progressively declines and stabilization (micro-Siemens of electrical conductivity 0.3/centimetre following), will coagulate
Bear water full flow precision processing operational mode and be adjusted to 3 patterns, be adjusted within second day 2 patterns, be adjusted to 1 pattern, the 4th within the 3rd day
It is adjusted to 0 pattern.When 0 pattern (or 1,2,3 patterns) is run, there is water quality deterioration phenomenon to unit in condensate, then by 0 pattern
To 1,2,3 patterns and full flow patten transformation, with steam generator blowdown water water quality as standard, steam generator water after rotary-die type
Matter meets and requires then run in this mode, until conductance less than 0.3 micro-Siemens/centimetre, then progressively switch to 0 pattern.
As mixed bed structure, diameter 3.4m, top water distribution is cup type in cup to cation bed, and bottom water distribution is water cap formula.Cation bed
It is arranged in 0m floor heights, mixed bed and is arranged in 8m floor heights.Cation bed and mixed bed are main pipe type, see Fig. 1：Precision processing system flow chart.
Claims (4)
1. the technique that a kind of condensed water precision processing system runs, it is characterised in that：
First, condensed water precision processing system is improved, the system after improvement is two-way by 1 point of condensing water conduit, all the way for
Condensate flows through precision processing system pipeline, i.e. pipeline 15, and another road is the pipeline 14 that condensate bypasses precision processing system, pipeline 15
Upper No. 1 to No. 5 cation beds are in parallel successively, and on pipeline 14, No. 1 to No. 5 mixed bed is in parallel successively；
Then, based on improved condensed water precision processing system, after stable operation of unit, the stream of adjustment precision processing system bypass
Amount, can be switched to precision processing system four kinds of patterns and be run.
2. the technique that a kind of condensed water precision processing system as claimed in claim 1 runs, it is characterised in that：Condensation after improvement
In crystal's processing system, the flow that condensate flows through precision processing system is：Condensate enters precision processing system by pipeline 15, by
Pipeline 2-6 enters 1-5 cation beds, and main pipe pipeline 7 is out imported afterwards from cation bed, then enters 1-5 mixed beds by pipeline 8-12, from
Mixed bed out imports main pipe pipeline 13 afterwards, returns to condensate system pipeline 16；
Condensate bypass precision processing flow be：Condensate flows through precision processing system bypass duct 14 and the He of valve 1 by pipeline 1
Valve 2, returns to condensate system pipeline 16；
Precision processing system adjusts the stream for flowing through bypass by valve 2 on precision processing system bypass duct 14 in 0-3 mode operations
Amount, to meet the flow of precision processing system filter under each operating mode.
3. the technique that a kind of condensed water precision processing system as claimed in claim 1 runs, it is characterised in that：Four kinds of patterns
Including：
That is 0+4 patterns, cation bed system zero row big flow, four row low discharges；The row big flow of mixed-bed system one, three row are hot standby；
1+3 patterns, the row big flow of cation bed system one, three row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
2+2 patterns, the row big flow of cation bed system two, two row low discharges；The row big flow of mixed-bed system two, two row are hot standby；
3+1 patterns, the row big flow of cation bed system three, a row low discharge；The row big flow of mixed-bed system three, a row are hot standby.
4. the technique that a kind of condensed water precision processing system as claimed in claim 3 runs, it is characterised in that：Big flow is flow
In 140-150kg/s, the low discharge of cation bed is in 35-50kg/s, hot standby for gateway valve is opened, the tune valve closing of mixed bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076231.4A CN106830186B (en) | 2017-02-13 | 2017-02-13 | Process for running condensate polishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710076231.4A CN106830186B (en) | 2017-02-13 | 2017-02-13 | Process for running condensate polishing system |
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| Publication Number | Publication Date |
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| CN106830186A true CN106830186A (en) | 2017-06-13 |
| CN106830186B CN106830186B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710076231.4A Active CN106830186B (en) | 2017-02-13 | 2017-02-13 | Process for running condensate polishing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732219A (en) * | 2020-03-31 | 2020-10-02 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
Citations (5)
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|---|---|---|---|---|
| KR20120083796A (en) * | 2011-01-18 | 2012-07-26 | 한국정수공업 주식회사 | Condensate polishing system and method |
| CN202482105U (en) * | 2012-02-21 | 2012-10-10 | 江苏核电有限公司 | Non-ammoniation and bypass operating system for condensed water precision treatment |
| CN102942228A (en) * | 2012-10-19 | 2013-02-27 | 国核电力规划设计研究院 | Polishing system and control method for secondary circuit condensate of inland nuclear power station |
| CN103265131A (en) * | 2013-06-13 | 2013-08-28 | 中国华电工程(集团)有限公司 | System and method for fine treatment of condensation water |
| CN104961271A (en) * | 2015-06-12 | 2015-10-07 | 国核电力规划设计研究院 | Quick starting method of condensate polishing system of nuclear power station |
-
2017
- 2017-02-13 CN CN201710076231.4A patent/CN106830186B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120083796A (en) * | 2011-01-18 | 2012-07-26 | 한국정수공업 주식회사 | Condensate polishing system and method |
| CN202482105U (en) * | 2012-02-21 | 2012-10-10 | 江苏核电有限公司 | Non-ammoniation and bypass operating system for condensed water precision treatment |
| CN102942228A (en) * | 2012-10-19 | 2013-02-27 | 国核电力规划设计研究院 | Polishing system and control method for secondary circuit condensate of inland nuclear power station |
| CN103265131A (en) * | 2013-06-13 | 2013-08-28 | 中国华电工程(集团)有限公司 | System and method for fine treatment of condensation water |
| CN104961271A (en) * | 2015-06-12 | 2015-10-07 | 国核电力规划设计研究院 | Quick starting method of condensate polishing system of nuclear power station |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732219A (en) * | 2020-03-31 | 2020-10-02 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
| CN111732219B (en) * | 2020-03-31 | 2021-11-09 | 江苏核电有限公司 | Control method for bypass multi-mode operation of condensate polishing system |
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| Publication number | Publication date |
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| CN106830186B (en) | 2020-05-22 |
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