CN114804409A - Nuclear power station condensate fine treatment system and operation method thereof - Google Patents
Nuclear power station condensate fine treatment system and operation method thereof Download PDFInfo
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- CN114804409A CN114804409A CN202210380639.1A CN202210380639A CN114804409A CN 114804409 A CN114804409 A CN 114804409A CN 202210380639 A CN202210380639 A CN 202210380639A CN 114804409 A CN114804409 A CN 114804409A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 209
- 150000002500 ions Chemical class 0.000 claims abstract description 79
- 150000001768 cations Chemical class 0.000 claims abstract description 59
- 238000005498 polishing Methods 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011033 desalting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 235000013980 iron oxide Nutrition 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- 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 discloses a condensate fine treatment system of a nuclear power station and an operation method thereof, wherein the condensate fine treatment system comprises a water inlet pipeline, a water outlet pipeline, a filter group water inlet main valve, a filter group, a first filter group water outlet main valve, a cation exchanger group water inlet main valve, a cation exchanger group, a mixed ion exchanger group water inlet main valve, a mixed ion exchanger group water outlet main valve, a fine treatment system internal circulating valve, a second filter group water outlet main valve, a bypass system and an intelligent control module.
Description
Technical Field
The invention belongs to the field of water treatment, and relates to a condensate fine treatment system of a nuclear power station and an operation method thereof.
Background
A condensate polishing system in a nuclear power station is an important device for guaranteeing two-loop condensate purification and is used for guaranteeing the quality of condensate and feed water of an evaporator. At present, a condensate water fine treatment system of a nuclear power station mostly adopts a treatment mode of 'a cation exchanger + a mixed ion exchanger' to achieve the aim of desalting and purifying water. In order to avoid the pollution of resin in an ion exchanger by iron, the operation condition of the condensate fine treatment system of the nuclear power station is that the iron content in inlet water is less than or equal to 500 mug/L, and at the initial running and starting stage of a new machine of the nuclear power unit, the oxide of iron in the condensate is higher, so that the requirement of the inlet water quality of the fine treatment system is met, long-time water washing is often needed, a large amount of time and water resources are wasted, the starting time of the unit is long, and the economical efficiency is poor. Meanwhile, the nuclear power station has higher control requirement on the sulfate radical index of the outlet water of the condensate fine treatment system, and broken resin of the fine treatment system is decomposed after entering the two loops and is easy to generate sulfate radicals, so that the quality of the water supply of the evaporator exceeds the standard, and the evaporator material is corroded.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a condensate polishing system of a nuclear power station and an operation method thereof, which can avoid the problem that the quality of feed water of an evaporator exceeds the standard and corrodes evaporator materials and have better economical efficiency.
In order to achieve the purpose, the condensate fine treatment system of the nuclear power station comprises a water inlet pipeline, a water outlet pipeline, a filter group water inlet main valve, a filter group, a first filter group water outlet main valve, a cation exchanger group water inlet main valve, a cation exchanger group, a mixed ion exchanger group water inlet main valve, a mixed ion exchanger group water outlet main valve, a fine treatment system internal circulating valve, a second filter group water outlet main valve, a bypass system and an intelligent control module;
the outlet of the water inlet pipeline is divided into three paths, wherein the first path is communicated with the water outlet pipeline through a bypass system, the second path is communicated with the inlet of the cation exchanger group through a cation exchanger group water inlet main valve, the third path is communicated with the inlet of the filter group through a filter group water inlet main valve, the outlet of the filter group is divided into two paths, one path is communicated with the inlet of the cation exchanger group through a first filter group water outlet main valve, and the other path is communicated with the water outlet pipeline through a second filter group water outlet main valve; the outlet of the cation exchanger group is divided into two paths after sequentially passing through a water inlet main valve of the mixed ion exchanger group, the mixed ion exchanger group and a water outlet main valve of the mixed ion exchanger group, wherein one path is communicated with the inlet of the filter group through a circulating valve in the fine treatment system, the other path is communicated with a water outlet pipeline through the water outlet main valve of the fine treatment system, and the water outlet pipeline is communicated with an external condensed water system;
the intelligent control module is connected with a filter group water inlet main valve, a filter group, a first filter group water outlet main valve, a cation exchanger group water inlet main valve, a cation exchanger group, a mixed ion exchanger group water inlet main valve, a mixed ion exchanger group water outlet main valve, a fine treatment system internal circulation valve, a second filter group water outlet main valve and a bypass system.
The outlet of the cation exchanger group is divided into two paths after passing through a water inlet main valve of the mixed ion exchanger group, a water outlet main valve of the mixed ion exchanger group and a condensed water booster pump group in sequence.
The filter group is formed by connecting a plurality of filters in parallel;
the cation exchanger group is formed by connecting a plurality of cation exchangers in parallel;
the mixed ion exchanger group is formed by connecting a plurality of mixed ion exchangers in parallel;
the condensed water booster pump group is formed by connecting a plurality of condensed water booster pumps in parallel.
The operation method of the condensate fine treatment system of the nuclear power station comprises the following steps:
in the initial operation and starting stage of a new machine of a nuclear power unit, a mode of series operation of a filter group, a cation exchanger group and a mixed ion exchanger group is adopted, and the method specifically comprises the following steps:
the water output by the water inlet pipeline sequentially passes through a filter group water inlet main valve, a filter group, a first filter group water outlet main valve, a cation exchanger group, a mixed ion exchanger group water inlet main valve, a mixed ion exchanger group water outlet main valve, a condensed water booster pump group and a fine treatment system water outlet main valve and is divided into two paths, wherein 5-10% of condensed water flows back to the water inlet pipeline through a bypass system to be circulated, and 90-95% of condensed water enters an external condensed water system;
in the normal operation period of a nuclear power unit, a mode that a cation exchanger group, a mixed ion exchanger group and a filter group are connected in series is adopted, and the method specifically comprises the following steps:
the water output by the water inlet pipeline is divided into two paths after sequentially passing through a cation exchanger group water inlet main valve, a cation exchanger group, a mixed ion exchanger group water inlet main valve, a mixed ion exchanger group water outlet main valve, a condensed water boosting pump group, a circulating valve in a fine treatment system, a filter group and a second filter group water outlet main valve, wherein 5% -10% of the condensed water flows back to the water inlet pipeline through a bypass system for circulation, and 90% -95% of the condensed water enters an external condensed water system.
When the operation cannot be carried out or the fine treatment system fails in the operation process, water output by the water inlet pipeline enters an external condensed water system through the bypass system.
When the differential pressure of water inlet and outlet of a certain filter in the filter group reaches a rated value, the standby filter is put into operation through the intelligent control module, and then the filter with high differential pressure is withdrawn.
When one exchanger in the cation exchanger group or the mixed ion exchanger group fails, the failed exchanger is regenerated by operating the spare exchanger.
The operation number of the filter group, the cation exchanger, the mixed ion exchanger and the condensed water pressure boosting pump group is matched with the flow of the condensed water.
The invention has the following beneficial effects:
when the nuclear power station condensate polishing system and the operation method thereof are specifically operated, the filter group and the ion exchanger group are put into operation at the initial stage of new operation and starting of a nuclear power unit, suspended matters and iron oxides are intercepted by the filter group, resin in a cation exchanger and a mixed ion exchanger is prevented from being polluted, the ion exchanger group is put into operation for desalting, and the filter group and the ion exchanger group effectively shorten the flushing time for starting the nuclear power unit. During the formal operation of the unit, the operation mode of the ion exchanger group and the filter group is adopted, so that the broken resin in the ion exchanger is effectively prevented from entering the two-loop system, and the corrosion of the steam generator is prevented. The invention can carry out an inner circulation mode when in a standby state, ensures that the invention can be put into operation quickly, has simple structure and convenient operation switching, effectively solves the problem of long starting time of the unit, avoids the corrosion of the steam generator caused by the broken resin entering the two loops, and has obvious effects of environmental protection and energy saving.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
wherein, 1 is the filter group inlet main valve, 2 is the filter group, 3 is the first filter group outlet main valve, 4 is the cation exchanger group inlet main valve, 5 is the cation exchanger group, 6 is the mixed ion exchanger group inlet main valve, 7 is the mixed ion exchanger group, 8 is the mixed ion exchanger group outlet main valve, 9 is the condensate water booster pump group, 10 is the fine processing system outlet main valve, 11 is the inner circulating valve of the fine processing system, 12 is the second filter group outlet main valve, 13 is the bypass system, 14 is the intelligent control module.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
There is shown in the drawings a schematic block diagram of a disclosed embodiment in accordance with the invention. The figures are not drawn to scale, wherein certain details are exaggerated and possibly omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, the condensate fine treatment system of the nuclear power plant includes a filter group water inlet main valve 1, a filter group 2, a first filter group water outlet main valve 3, a cation exchanger group water inlet main valve 4, a cation exchanger group 5, a mixed ion exchanger group water inlet main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group water outlet main valve 8, a condensate water pressure boosting pump set 9, a fine treatment system water outlet main valve 10, a fine treatment system internal circulation valve 11, a second filter group water outlet main valve 12, a bypass system 13 and an intelligent control module 14;
the outlet of the water inlet pipeline is divided into three paths, wherein the first path is communicated with the water outlet pipeline through a bypass system 13, the second path is communicated with the inlet of the cation exchanger group 5 through a cation exchanger group water inlet main valve 4, the third path is communicated with the inlet of the filter group 2 through a filter group water inlet main valve 1, the outlet of the filter group 2 is divided into two paths, one path is communicated with the inlet of the cation exchanger group 5 through a first filter group water outlet main valve 3, and the other path is communicated with the water outlet pipeline through a second filter group water outlet main valve 12; the outlet of the cation exchanger group 5 is divided into two paths after sequentially passing through a mixed ion exchanger group water inlet main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group water outlet main valve 8 and a condensed water booster pump group 9, wherein one path is communicated with the inlet of the filter group 2 through a circulating valve 11 in the fine treatment system, the other path is communicated with a water outlet pipeline through a fine treatment system water outlet main valve 10, and the water outlet pipeline is communicated with an external condensed water system;
the intelligent control module 14 is connected with a filter group water inlet main valve 1, a filter group 2, a first filter group water outlet main valve 3, a cation exchanger group water inlet main valve 4, a cation exchanger group 5, a mixed ion exchanger group water inlet main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group water outlet main valve 8, a condensed water boosting pump group 9, a fine treatment system water outlet main valve 10, a fine treatment system internal circulation valve 11, a second filter group water outlet main valve 12 and a bypass system 13.
The specific working process of the invention is as follows:
1) in the initial operation and starting period of a new machine of a nuclear power unit, the invention adopts a mode of series operation of a filter group 2+ a cation exchanger group 5+ a mixed ion exchanger group 7, and specifically comprises the following steps:
water output by a water inlet pipeline sequentially passes through a filter group water inlet main valve 1, a filter group 2, a first filter group water outlet main valve 3, a cation exchanger group 5, a mixed ion exchanger group water inlet main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group water outlet main valve 8, a condensed water booster pump group 9 and a fine treatment system water outlet main valve 10, wherein 5% -10% of treated condensed water flows back to the water inlet pipeline through a bypass system 13 for circulation, and the rest 90% -95% of treated condensed water enters an external condensed water system.
2) In the normal operation period of the nuclear power unit, the invention adopts a mode of series operation of a cation exchanger group 5+ a mixed ion exchanger group 7+ a filter group 2, and specifically comprises the following steps:
the water output by the water inlet pipeline sequentially passes through a cation exchanger group water inlet main valve 4, a cation exchanger group 5, a mixed ion exchanger group water inlet main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group water outlet main valve 8, a condensate water boosting pump group 9, a precision treatment system internal circulating valve 11 and a second filter group water outlet main valve 12, 5% -10% of the treated condensate water flows back to the water inlet pipeline through a bypass system 13 for circulation, and the rest 90% -95% of the treated condensate water enters an external condensate water system.
When the quality of the condensed water meets the requirement and the device is out of operation, the device can be operated in an internal circulation mode periodically to prepare for quick operation, and under the condition of operation in the internal circulation mode, the inlet water sequentially flows through a condensed water booster pump group 9, a circulating valve 11 in a fine treatment system, a filter group 2, a first filter group outlet water main valve 3, a cation exchanger group 5, a mixed ion exchanger group inlet water main valve 6, a mixed ion exchanger group 7, a mixed ion exchanger group outlet water main valve 8 and the condensed water booster pump group 9.
3) When the fine treatment system breaks down, cannot be put into operation or breaks down suddenly in the operation process, water output by the water inlet pipeline enters an external condensed water system through the bypass system 13, and the safe operation of the unit is ensured.
The finishing system is controlled by an intelligent control module 14 and can be operated automatically or manually.
The filter group 2, the cation exchanger group 5, the mixed ion exchanger group 7 and the condensed water booster pump group 9 are all configured in a mode of N using 1 according to the maximum flow of a condensed water system of the nuclear power unit.
When the differential pressure of water inlet and outlet of a certain filter in the running filter group 2 reaches a rated value, the standby filter is automatically (manually) put into operation through the intelligent control module 14, then the filter with high differential pressure is automatically (manually) withdrawn, the filter element is automatically (manually) backwashed or manually replaced, suspended matters and iron oxides attached to the filter element of the filter are removed, and then the standby state is entered.
When one of the cation exchanger group 5 or the mixed ion exchanger group 7 in operation fails, the backup exchanger is automatically (manually) put into operation, the failed exchanger is automatically (manually) withdrawn, and the resin is automatically (manually) fed to the regeneration system for regeneration.
The equipment operation number in the filter group 2, the cation exchanger group 5, the mixed ion exchanger group 7 and the condensed water booster pump group 9 is matched with the flow of the condensed water, and the device can be operated singly or simultaneously.
Claims (8)
1. A nuclear power station condensate water precision treatment system is characterized by comprising a water inlet pipeline, a water outlet pipeline, a filter group water inlet main valve (1), a filter group (2), a first filter group water outlet main valve (3), a cation exchanger group water inlet main valve (4), a cation exchanger group (5), a mixed ion exchanger group water inlet main valve (6), a mixed ion exchanger group (7), a mixed ion exchanger group water outlet main valve (8), a precision treatment system water outlet main valve (10), a precision treatment system internal circulation valve (11), a second filter group water outlet main valve (12), a bypass system (13) and an intelligent control module (14);
the outlet of the water inlet pipeline is divided into three paths, wherein the first path is communicated with the water outlet pipeline through a bypass system (13), the second path is communicated with the inlet of the cation exchanger group (5) through a cation exchanger group water inlet main valve (4), the third path is communicated with the inlet of the filter group (2) through a filter group water inlet main valve (1), the outlet of the filter group (2) is divided into two paths, one path is communicated with the inlet of the cation exchanger group (5) through a first filter group water outlet main valve (3), and the other path is communicated with the water outlet pipeline through a second filter group water outlet main valve (12); the outlet of the cation exchanger group (5) is divided into two paths after sequentially passing through a mixed ion exchanger group water inlet main valve (6), a mixed ion exchanger group (7) and a mixed ion exchanger group water outlet main valve (8), wherein one path is communicated with the inlet of the filter group (2) through a circulating valve (11) in the fine treatment system, the other path is communicated with a water outlet pipeline through a fine treatment system water outlet main valve (10), and the water outlet pipeline is communicated with an external condensed water system;
the intelligent control module (14) is connected with a filter group water inlet main valve (1), a filter group (2), a first filter group water outlet main valve (3), a cation exchanger group water inlet main valve (4), a cation exchanger group (5), a mixed ion exchanger group water inlet main valve (6), a mixed ion exchanger group (7), a mixed ion exchanger group water outlet main valve (8), a fine treatment system water outlet main valve (10), a fine treatment system internal circulating valve (11), a second filter group water outlet main valve (12) and a bypass system (13).
2. The nuclear power station condensate polishing system according to claim 1, wherein the outlet of the cation exchanger group (5) is divided into two paths after passing through the mixed ion exchanger group inlet water main valve (6), the mixed ion exchanger group (7), the mixed ion exchanger group outlet water main valve (8) and the condensate pressure boosting pump group (9) in sequence.
3. The condensate polishing system for nuclear power plants as claimed in claim 1, wherein the filter group (2) is formed by connecting a plurality of filters in parallel;
the cation exchanger group (5) is formed by connecting a plurality of cation exchangers in parallel;
the mixed ion exchanger group (7) is formed by connecting a plurality of mixed ion exchangers in parallel;
the condensed water booster pump set (9) is formed by connecting a plurality of condensed water booster pumps in parallel.
4. A method of operating a condensate polishing system for a nuclear power plant as recited in claim 2, comprising:
in the initial stage of operation and starting of a new machine of a nuclear power unit, a mode of series operation of a filter group (2), a cation exchanger group (5) and a mixed ion exchanger group (7) is adopted, and the method specifically comprises the following steps:
the water output by the water inlet pipeline sequentially passes through a filter group water inlet main valve (1), a filter group (2), a first filter group water outlet main valve (3), a cation exchanger group (5), a mixed ion exchanger group water inlet main valve (6), a mixed ion exchanger group (7), a mixed ion exchanger group water outlet main valve (8), a condensate water booster pump group (9) and a fine treatment system water outlet main valve (10) and is divided into two paths, wherein 5-10% of condensate water flows back into the water inlet pipeline through a bypass system (13) for circulation, and 90-95% of condensate water enters an external condensate water system;
in the normal operation period of a nuclear power unit, a mode that a cation exchanger group (5), a mixed ion exchanger group (7) and a filter group (2) are connected in series is adopted, and the method specifically comprises the following steps:
water output by the water inlet pipeline sequentially passes through a cation exchanger group water inlet main valve (4), a cation exchanger group (5), a mixed ion exchanger group water inlet main valve (6), a mixed ion exchanger group (7), a mixed ion exchanger group water outlet main valve (8), a condensed water pressure boosting pump group (9), a circulating valve (11) in a fine treatment system, a filter group (2) and a second filter group water outlet main valve (12) and then is divided into two paths, wherein 5% -10% of condensed water flows back to the water inlet pipeline through a bypass system (13) to circulate, and 90% -95% of condensed water enters an external condensed water system.
5. The operation method of the condensate polishing system of nuclear power plant as claimed in claim 4, wherein when the operation is impossible or the polishing system is out of order during operation, the water output from the water inlet pipe enters the external condensate system through the bypass system (13).
6. The operation method of the condensate polishing system in nuclear power plant according to claim 4, characterized in that when the differential pressure of water inlet and outlet of a certain filter in the filter group (2) reaches the rated value, the spare filter is put into operation through the intelligent control module (14), and then the filter with high differential pressure is removed.
7. The method for operating a condensate polishing system in nuclear power plant according to claim 4, characterized in that, when one exchanger in the cation exchanger group (5) or the mixed ion exchanger group (7) fails, the failed exchanger is regenerated by operating the spare exchanger.
8. The operation method of the condensate polishing system in nuclear power plant according to claim 4, characterized in that the operation numbers of the filter group (2), the cation exchanger group (5), the mixed ion exchanger group (7) and the condensate booster pump group (9) are matched with the flow rate of the condensate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210380639.1A CN114804409A (en) | 2022-04-12 | 2022-04-12 | Nuclear power station condensate fine treatment system and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210380639.1A CN114804409A (en) | 2022-04-12 | 2022-04-12 | Nuclear power station condensate fine treatment system and operation method thereof |
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-
2022
- 2022-04-12 CN CN202210380639.1A patent/CN114804409A/en active Pending
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