WO2024008201A1

WO2024008201A1 - Water island system of nuclear power plant

Info

Publication number: WO2024008201A1
Application number: PCT/CN2023/109576
Authority: WO
Inventors: 汪沛丰; 张春艳; 卢照升; 杨光文
Original assignee: 中广核工程有限公司; 深圳中广核工程设计有限公司; 中国广核集团有限公司; 中国广核电力股份有限公司
Priority date: 2023-02-20
Filing date: 2023-07-27
Publication date: 2024-01-11
Also published as: CN116199373A

Abstract

A water island system of a nuclear power plant. The system comprises a fresh water pretreatment module (11), a softened water treatment module (12), a desalted water treatment module (13), a softened desalted water storage and distribution module (14), a wastewater collection and treatment module (15), a chemical storage and dosing module (16), a chemistry laboratory module (17) and an integrated operation control module (18). The water island system of a nuclear power plant innovatively designs water treatment related systems or sub-items of the nuclear power plant, so as to form a modular design for a plurality of water treatment functional units; fresh water purification treatment, softening and desalting production and distribution, industrial wastewater treatment, domestic sewage treatment, and centralized chemical agent management in the nuclear power plant are realized; a design scheme involving process flow integration, layout design integration and functional partition integration is achieved; and by means of optimizing a system flow and intensively configuring devices, the process flows are smooth, device resources are shared and repeated configurations of the devices are reduced, thereby saving on land, and reducing the project investment.

Description

Nuclear power plant water island system

Technical field

The invention relates to the technical field of nuclear power plant water treatment, and in particular to a nuclear power plant water island system.

Background technique

At present, the layout of domestic nuclear power plant water treatment-related sub-items is an independent system and a single layout plan. Different sub-items and functions are scattered in different areas of the nuclear power plant. The design system functions of each sub-item of the nuclear power plant are designed independently, and there is a lack of design solutions for the integration, integration and sharing of all water treatment sub-items and system resources of the entire plant; the planning and layout of the sub-items are independent layout units, and no centralized and unified planning is achieved layout plan.

There are problems with the existing technical solutions: each process is not smooth enough, the underground pipe network of the whole plant is intertwined among the sub-items of the water treatment system, some equipment configurations of each sub-item system are repeated or redundant, the control of each sub-item is scattered and not centralized, and the control of each sub-item is not centralized. The chemical storage and dosing treatment of the sub-projects are dispersed, and centralized management of hazardous chemicals is not used. The above causes problems such as increased investment in equipment for the water treatment sub-project of the power plant project, inconvenience for the owner's daily operation and management, and the overall area of the plant area is too large.

Contents of the invention

The technical problem to be solved by the present invention is to provide a water island system for a nuclear power plant.

The technical solution adopted by the present invention to solve the technical problem is to construct a nuclear power plant water island system, which includes: a fresh water pretreatment module, a softened water treatment module, a desalted water treatment module, a softened desalted water storage and distribution module, and a waste water collection module. Processing module, chemical storage and dosing module, chemical laboratory module and integrated operation control module;

The fresh water pretreatment module is located on one side of the water island, and the other side of the water island is centered on the softened desalted water storage and distribution module. The chemical storage and dosing module, the wastewater collection and treatment module, The chemical laboratory module, the integrated operation control module, the demineralized water treatment module, and the demineralized water treatment module surround the periphery of the demineralized desalted water storage and distribution module and are connected in sequence, and are arranged in a rectangular shape as a whole.

In some embodiments, the fresh water pretreatment module is connected with a water pipeline for inputting fresh water from an external water supply system into the fresh water pretreatment module, and the fresh water pretreatment module is used to process the fresh water provided outside the factory. Treat and provide treated fresh water to downstream modules for use.

In some embodiments, it also includes a softened water treatment pipeline, which includes a water inlet pipeline, a first water outlet pipeline, and a second water outlet pipeline;

Both ends of the water inlet pipeline are connected to the fresh water pretreatment module and the softened water treatment module respectively, so that the fresh water provided by the fresh water pretreatment module enters the softened water treatment module for softening treatment;

Both ends of the first water outlet pipeline are respectively connected to the softened water treatment module and the softened desalted water storage and distribution module;

The first end of the second water outlet pipeline is connected to the softened water treatment module. After passing through the desalted water treatment module, the second end of the second water outlet pipeline is connected to the softened desalted water storage and distribution module.

In some embodiments, the freshwater pretreatment module includes a freshwater clarification device and a freshwater filtration device;

The softened water treatment module includes a softening treatment device;

The desalted water treatment module includes a desalted water treatment device;

The softened desalted water storage and distribution module includes a softened desalted water storage tank and a softened desalted water water supply pump device.

In some embodiments, a wastewater collection and treatment pipeline is also included, and the wastewater collection and treatment pipeline includes a first wastewater collection branch, a second wastewater collection branch, and a third wastewater collection branch;

The fresh water pretreatment module, the softened water treatment module, and the demineralized water treatment module are respectively connected to the wastewater collection and treatment module through the first wastewater collection branch;

The chemical storage and dosing module is connected to the wastewater collection and treatment module through the second wastewater collection branch;

The softened desalted water storage and distribution module is connected to the wastewater collection and treatment module through the third wastewater collection branch.

In some embodiments, the wastewater collection and treatment module includes an industrial wastewater treatment device, an industrial wastewater collection pipe network, a domestic sewage treatment device, and a domestic sewage collection pipe network.

In some embodiments, it also includes a dosing pipeline, and the dosing pipeline includes a first dosing branch and a second dosing branch;

The chemical storage and dosing module is connected to the fresh water pretreatment module, the softened water treatment module and the desalted water treatment module through the first dosing branch to realize the processing of the fresh water pretreatment module and the desalted water treatment module. Dispensing and dosing of the softened water treatment module and the desalted water treatment module;

The chemical storage and dosing module is connected to the wastewater collection and treatment module through a second dosing branch.

In some embodiments, the chemical storage and dosing module includes a centralized chemical storage device, a dispensing device, and a dosing and metering device.

In some embodiments, the softened desalted water storage and distribution module is also connected to a water supply pipeline for supplying fresh water processed by the softened desalted water storage and distribution module to an external mechanism.

In some embodiments, the integrated operation control module is respectively connected with the fresh water pretreatment module, the softened water treatment module, the desalted water treatment module, the softened desalted water storage and distribution module, and the wastewater collection and treatment module. And the communication connection of the chemical storage and dosing module.

In some embodiments, the chemical laboratory module is connected to the integrated operation control module for sampling, testing and analyzing fresh water and product water quality in each treatment process link in the water island system.

In some embodiments, the integrated operation control module includes a centralized power distribution device, a DC power supply device, an integrated controller, and a host computer control device.

The chemical laboratory module includes a centralized operation test device and a centralized analysis instrument device.

Implementing the present invention has the following beneficial effects: the nuclear power plant water island system includes a fresh water pretreatment module, a softened water treatment module, a desalted water treatment module, a softened desalted water storage and distribution module, a wastewater collection and treatment module, a chemical storage and dosing module, Chemistry laboratory module and integrated operational control module. The freshwater pretreatment module is located on one side of the water island. The other side of the water island is centered on the softened desalted water storage and distribution module, chemical storage and dosing module, wastewater collection and treatment module, chemical laboratory module, and integrated operation control module. , desalted water treatment module, and softened water treatment module surround the periphery of the softened desalted water storage and distribution module and are connected in sequence, and the overall arrangement is rectangular. The nuclear power plant water island system innovatively designs nuclear power plant water treatment-related systems or sub-projects to form a modular design of multiple water treatment functional units to realize nuclear power plant freshwater purification treatment, softening and desalination production and distribution, industrial Centralized management of wastewater treatment, domestic sewage treatment, and chemical agents, and a design plan that integrates process flow, layout design, and functional partitioning. By optimizing system processes and intensively configuring equipment, we can achieve smooth process flow, equipment resource sharing, and reduce costs. Repeated configuration of equipment saves land and reduces project investment.

Description of the drawings

In order to illustrate the technical solution of the present invention more clearly, the present invention will be further described below in conjunction with the drawings and examples. It should be understood that the following drawings only show certain embodiments of the present invention, and therefore should not be regarded as It is a limitation of the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without exerting creative efforts. In the attached picture:

Figure 1 is a system flow chart of the technical solution of the water island system of a nuclear power plant in some embodiments of the present invention;

Figure 2 is a schematic structural layout diagram of the water island system of a nuclear power plant in some embodiments of the present invention.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, what needs to be understood is "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", "head", "tail", etc. are based on the orientation or positional relationship shown in the drawings and are constructed and operated in specific orientations. It is only for the convenience of describing the present technical solution, and does not indicate that the device or element referred to must have a specific orientation, and therefore cannot be understood as a limitation of the present invention.

It should also be noted that, unless otherwise expressly stipulated and limited, terms such as "installation", "connection", "connection", "fixing" and "setting" should be understood in a broad sense. For example, it can be a fixed connection or a fixed connection. It can be detachably connected or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first", "second", "third", etc. are only used to facilitate the description of the present technical solution and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features. Therefore, Features defined as "first," "second," "third," etc. may explicitly or implicitly include one or more of these features. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Please refer to Figures 1 to 2, which is a water island system of a nuclear power plant in some embodiments of the present invention. It includes a fresh water pretreatment module 11, a softened water treatment module 12, a desalted water treatment module 13, and a storage and distribution of demineralized desalted water. Module 14, wastewater collection and treatment module 15, chemical storage and dosing module 16, chemical laboratory module 17 and integrated operation control module 18. The fresh water pretreatment module 11 is located on one side of the water island. The other side of the water island is centered on the softened desalted water storage and distribution module 14, chemical storage and dosing module 16, wastewater collection and treatment module 15, chemical laboratory module 17, The integrated operation control module 18, the desalted water treatment module 13, and the softened water treatment module 12 surround the outer periphery of the demineralized desalted water storage and distribution module 14 and are connected in sequence, and the whole is arranged in a rectangular shape.

In this embodiment, the fresh water pretreatment module 11 is located on the leftmost side of the water island of the nuclear power plant. The chemical storage and dosing module 16 and the softened water treatment module 12 are located adjacent to the fresh water pretreatment module 11. The wastewater is collected The processing module 15, the chemical laboratory module 17 and the integrated operation control module 18 are located on the rightmost side of the water island of the nuclear power plant. In some other embodiments, the positions of the modules of the above-mentioned nuclear power plant water island system can be adjusted according to actual conditions.

Understandably, the nuclear power plant water island system innovatively designs nuclear power plant water treatment-related systems or sub-projects to form a modular design of multiple water treatment functional units to achieve nuclear power plant freshwater purification, softening and desalination production. and distribution, industrial wastewater treatment, domestic sewage treatment, and centralized management of chemicals to achieve a design plan that integrates process flow, layout design, and functional partitioning. Through optimizing system processes and intensive equipment configuration, we can achieve smooth process flow and equipment Resource sharing, reducing duplication of equipment configuration, saving land, and reducing project investment.

In some embodiments, the fresh water pretreatment module 11 is connected to a water pipeline 21 for inputting fresh water from an external water supply system into the fresh water pretreatment module 11 , and the fresh water pretreatment module 11 is used to process fresh water provided outside the factory. And provide processed fresh water to downstream modules for use. Specifically, the function of the freshwater pretreatment module 11 is to process the freshwater provided outside the factory through processes such as coagulation, sedimentation, filtration, and disinfection, so that the quality of the effluent water meets the requirements of subsequent water treatment processes, and is provided for use by downstream modules.

Further, the nuclear power plant water island system also includes a softened water treatment pipeline 22. The softened water treatment pipeline 22 includes a water inlet pipeline 221, a first water outlet pipeline 222 and a second water outlet pipeline 223. Both ends of the water inlet pipeline 221 The two ends of the first water outlet pipeline 222 are respectively connected to the fresh water pretreatment module 11 and the softened water treatment module 12, so that the fresh water provided by the fresh water pretreatment module 11 enters the softened water treatment module 12 for softening treatment. The two ends of the first water outlet pipeline 222 are connected to The softened water treatment module 12 and the softened desalted water storage and distribution module 14. The first end of the second water outlet pipeline 223 is connected to the softened water treatment module 12. After passing through the desalted water treatment module 13, the second end of the second water outlet pipeline 223 Connected to the softened desalted water storage and distribution module 14. The softened desalted water storage and distribution module 14 is also connected to a water supply pipeline 25 for supplying fresh water processed by the softened desalted water storage and distribution module 14 to external institutions.

Specifically, the function of the softened water treatment module 12 is to soften the fresh water provided by the fresh water pretreatment module 11 through the softening treatment equipment of the softened desalted water production system. After the softening treatment, the water quality meets the water quality requirements of the softened water users and then is stored in the softened desalted water. The distribution module 14 also provides a softened water source for the desalted water treatment module 13. The function of the desalted water treatment module 13 is to process the softened water provided by the softened water treatment module 12 through the desalted water deep desalination equipment. After the deep desalination treatment, the desalted water quality meets the water quality requirements of the desalted water users, and the desalted water is softened to the desalted water. Storage allocation module 14. The function of the softened desalted water storage and distribution module 14 is to store the softened desalted water produced by the softened water treatment module 12 and the desalted water treatment module 13, and provide it to the softened desalted water distribution system equipment according to the flow and pressure needs of downstream users. Demineralized water users.

The freshwater pretreatment module 11 includes a freshwater clarification device and a freshwater filtration device. The freshwater clarification device can be used to continuously remove solids generated by precipitation in freshwater for clarification and/or concentration. This fresh water filter device is used to filter impurities in fresh water. The softened water treatment module 12 includes a softening treatment device, which can soften the raw water and replace the calcium and magnesium ions in it, thereby reducing the occurrence of harmful accidents. The desalted water treatment module 13 includes a desalted water treatment device, which can reduce the hardness of water, remove calcium ions and magnesium ions in the water, and activate water quality to achieve the purpose of anti-scaling and descaling. The softened desalted water storage and distribution module 14 Including softened desalted water storage tank and softened desalted water supply pump.

Among them, the nuclear power plant water island system also includes a wastewater collection pipeline 23. The wastewater collection pipeline 23 includes a first wastewater collection branch 231, a second wastewater collection branch 232, and a third wastewater collection branch 233. The fresh water The pretreatment module 11 , the softened water treatment module 12 , and the demineralized water treatment module 13 are respectively connected to the wastewater collection and treatment module 15 through the first wastewater treatment branch 231 , and the chemical storage and dosing module 16 is connected to the second wastewater collection branch 232 . The wastewater collection and processing module 15 is connected, and the softened desalted water storage and distribution module 14 is connected to the wastewater collection and processing module 15 through the third wastewater collection branch 233 . The wastewater collection and processing module 15 is used to collect industrial wastewater and domestic sewage in the entire factory, and centrally sets up industrial wastewater collection and treatment stations and domestic sewage treatment stations to centrally manage and process wastewater, and centrally process the collected wastewater to meet the needs of national and local governments. Emission Standards. The wastewater collection and processing module 15 includes an industrial wastewater treatment device, an industrial wastewater collection pipe network, a domestic sewage treatment device, and a domestic sewage collection pipe network.

Further, the nuclear power plant water island system also includes a dosing pipeline 24. The dosing pipeline 24 includes a first dosing branch 241 and a second dosing branch 242. The chemical storage dosing module 16 passes through the first dosing branch 241 and the second dosing branch 242. A dosing branch 241 is connected to the fresh water pretreatment module 11, the softened water treatment module 12 and the desalted water treatment module 13 to realize the dispensing and dosing of the fresh water pretreatment module 11, the softened water treatment module 12 and the desalted water treatment module 13. For chemical treatment, the chemical storage and dosing module 16 is connected to the wastewater collection and treatment module 15 through the second dosing branch 242 . The chemical storage and dosing module 16 is used for centralized storage, centralized dispensing, and centralized dosing of chemicals used in each module of the water island system of the nuclear power plant, and realizes the functional design of centralized chemical management. The chemical storage and dosing module 16 includes a centralized chemical storage device, a dosing device and a dosing and metering device.

Among them, the integrated operation control module 18 communicates with the fresh water pretreatment module 11, the softened water treatment module 12, the desalted water treatment module 13, the softened desalted water storage and distribution module 14, the wastewater collection and processing module 15 and the chemical storage and dosing module 16. connect. The integrated operation control module 18 integrates the control of each water treatment sub-item and system of the water island system of the nuclear power plant, including centralized operation control of each water treatment unit module of the water island, centralized experimental testing, centralized power distribution equipment, and centralized operation office feature design. The integrated operation control module 18 may include a centralized power distribution device, a DC power supply device, an integrated controller, and a host computer control device.

Furthermore, the chemical laboratory module 17 and the integrated operation control module 18 are centrally arranged for centralized control of each process system in the water island system, and sampling, testing and analysis of fresh water and product water quality in each process link. Specifically, the chemical laboratory module 17 is used to conduct sampling, detection and analysis of water quality chemical components and other water quality samples from the water island water treatment related modules to meet operational control requirements. The chemical laboratory module 17 includes centralized operation laboratory equipment and analytical instrumentation equipment.

To sum up, the nuclear power plant water island system has the following advantages:

1. The layout and design plan of the water island system of the nuclear power plant has no sub-items or system boundaries. The general plan plans the layout as a whole, and the chemical water treatment facilities are considered as a whole. The centralized planning and layout are combined to form the water island system of the nuclear power plant. The water island treatment modules and sub-projects of the nuclear power plant carry out resource integration and modular integrated design research to achieve innovative water island design solutions with process integration, equipment resource intensification and functional modularization;

2. The water island system of the nuclear power plant has a compact design and planning, and the equipment layout and pipeline planning are carried out in accordance with the order of the main process flows. There are few transmission pipelines between modules. Solve and change the water treatment equipment and structures outside the main building of the nuclear power plant. The factory layout is scattered, the general plan covers a large area, and the functional divisions are unclear;

3. Merge buildings with the same or similar functions, integrate or merge the dosing room, power distribution room, water pump room, etc. separately, and centralize planning and layout to solve and change the problems such as the scattered operation control layout of various water treatment plants in the nuclear power plant;

4. The functional module device is highly integrated and complete, with convenient, compact and beautiful layout. The pipeline connections between modules are simplified, which solves the problems of scattered sub-item layout, decentralized sub-item functions, and decentralized control operation of the nuclear power plant, and can greatly reduce the overall layout layout. land area, greatly saving project equipment investment and reducing power plant operation and maintenance costs;

5. Centralized control or monitoring can be achieved, and the number of operating personnel for each sub-item can be reduced, thus saving personnel expenses;

6. The equipment power supply of each functional module of the water island system of the nuclear power plant is centralized, and a centralized power distribution room is set up in an independent room in the centralized operation control area of the water island;

7. Involving unified planning for the collection and treatment of industrial wastewater, domestic sewage, oily wastewater and other wastewater, centralized collection, centralized classification and treatment, solving and changing the scattered water wastewater and wastewater drainage points in various water treatment plants of the nuclear power plant, and the unsmooth process flow question;

8. Various chemicals used in each functional module should be stored and used centrally, standardize the management and use of hazardous chemicals, prevent the risk of the spread of hazardous chemicals, and be beneficial to environmental protection. Solve and change the storage and dispersion of chemical agents in nuclear power plants, which is detrimental to the environment. Regarding environmental issues, this arrangement is conducive to the management of chemicals and avoids the environmental risks of multiple storage and use of hazardous chemicals.

It can be understood that the above embodiments only express the preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the present invention; it should be noted that for those of ordinary skill in the art, In other words, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the present invention; therefore, anything falling within the scope of the claims of the present invention All equivalent transformations and modifications shall fall within the scope of the claims of the present invention.

Claims

A water island system for a nuclear power plant, characterized by including: a fresh water pretreatment module (11), a softened water treatment module (12), a desalted water treatment module (13), a demineralized desalted water storage and distribution module (14), and waste water Collection and processing module (15), chemical storage and dosing module (16), chemical laboratory module (17) and integrated operation control module (18);

The fresh water pretreatment module (11) is located on one side of the water island. The other side of the water island is centered on the softened desalted water storage and distribution module (14). The chemical storage and dosing module (16), The wastewater collection and treatment module (15), the chemical laboratory module (17), the integrated operation control module (18), the desalted water treatment module (13), and the softened water treatment module (12) surround The softened desalted water storage and distribution modules (14) are connected in sequence around the outer periphery, and are arranged in a rectangular shape as a whole.
The nuclear power plant water island system according to claim 1, characterized in that the fresh water pretreatment module (11) is connected with an output for inputting fresh water from an off-site water supply system into the fresh water pretreatment module (11). Water pipeline (21), the fresh water pretreatment module (11) is used to process fresh water provided outside the factory and provide the treated fresh water to downstream modules for use.
The nuclear power plant water island system according to claim 2, further comprising a softened water treatment pipeline (22), the softened water treatment pipeline (22) including a water inlet pipeline (221), a first water outlet Pipeline (222) and the second water outlet pipeline (223);

Both ends of the water inlet pipeline (221) are connected to the fresh water pretreatment module (11) and the softened water treatment module (12) respectively, so that the fresh water provided by the fresh water pretreatment module (11) can enter Softening treatment is performed in the softened water treatment module (12);

Both ends of the first water outlet pipeline (222) are connected to the softened water treatment module (12) and the softened desalted water storage and distribution module (14) respectively;

The first end of the second water outlet pipeline (223) is connected to the softened water treatment module (12). After passing through the desalted water treatment module (13), the second end of the second water outlet pipeline (223) The end is connected to the softened desalted water storage and distribution module (14).
The nuclear power plant water island system according to claim 3, characterized in that the freshwater pretreatment module (11) includes a freshwater clarification device and a freshwater filtration device;

The softened water treatment module (12) includes a softening treatment device;

The desalted water treatment module (13) includes a desalted water treatment device;

The softened desalted water storage and distribution module (14) includes a softened desalted water storage tank and a softened desalted water water supply pump.
The nuclear power plant water island system according to claim 3, further comprising a wastewater collection pipeline (23), the wastewater collection pipeline (23) including a first wastewater collection branch (231), a second wastewater collection branch (231), and a second wastewater collection branch (231). Wastewater collection branch (232) and third wastewater collection branch (233);

The fresh water pretreatment module (11), the softened water treatment module (12), and the desalted water treatment module (13) respectively pass through the first wastewater collection branch (231) and the wastewater collection and treatment module ( 15) connection;

The chemical storage and dosing module (16) is connected to the wastewater collection and treatment module (15) through the second wastewater collection branch (232);

The softened desalted water storage and distribution module (14) is connected to the wastewater collection and treatment module (15) through the third wastewater collection branch (233).
The nuclear power plant water island system according to claim 5, characterized in that the wastewater collection and processing module (15) includes an industrial wastewater treatment device, an industrial wastewater collection pipe network, a domestic sewage treatment device and a domestic sewage collection pipe network.
The nuclear power plant water island system according to claim 1, further comprising a dosing pipeline (24), the dosing pipeline (24) including a first dosing branch (241) and a second dosing branch. Dosing branch (242);

The chemical storage and dosing module (16) is connected to the fresh water pretreatment module (11), the softened water treatment module (12) and the desalted water treatment module (13) through the first dosing branch (241). , to achieve dispensing and dosing of the fresh water pretreatment module (11), the softened water treatment module (12) and the desalted water treatment module (13);

The chemical storage and dosing module (16) is connected to the wastewater collection and treatment module (15) through the second dosing branch (242).
The nuclear power plant water island system according to claim 7, characterized in that the chemical storage and dosing module (16) includes a centralized chemical storage device, a dosing device and a dosing metering device.
The nuclear power plant water island system according to claim 1, characterized in that the softened desalted water storage and distribution module (14) is also connected to the fresh water treated by the softened desalted water storage and distribution module (14). Water supply lines (25) supplied by an external agency.
The nuclear power plant water island system according to claim 1, characterized in that the integrated operation control module (18) is respectively connected with the fresh water pretreatment module (11), the softened water treatment module (12), and the The desalted water treatment module (13), the softened desalted water storage and distribution module (14), the wastewater collection and processing module (15) and the chemical storage and dosing module (16) are connected by communication.
The nuclear power plant water island system according to claim 1, characterized in that the chemical laboratory module (17) is connected to the integrated operation control module (18) for processing and processing of the water island system. The quality of the final product water will be monitored and sampled for centralized monitoring and analysis.
The nuclear power plant water island system according to claim 1, characterized in that the integrated operation control module (18) includes a centralized power distribution device, a DC power supply device, an integrated controller and a host computer control device;

The chemical laboratory module (17) includes a centralized operation laboratory device and an analytical instrument device.