CN115541704A - Nuclear power plant cold source safety system - Google Patents
Nuclear power plant cold source safety system Download PDFInfo
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- CN115541704A CN115541704A CN202211035712.8A CN202211035712A CN115541704A CN 115541704 A CN115541704 A CN 115541704A CN 202211035712 A CN202211035712 A CN 202211035712A CN 115541704 A CN115541704 A CN 115541704A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/02—Analysing fluids
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B5/00—Artificial water canals, e.g. irrigation canals
- E02B5/08—Details, e.g. gates, screens
- E02B5/085—Arresting devices for waterborne materials, e.g. gratings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D3/00—Control of nuclear power plant
- G21D3/04—Safety arrangements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/022—Liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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Abstract
The disclosure relates to a nuclear power plant cold source safety system. The method comprises the following steps: the marine organism monitoring subsystem is arranged in a set range of a water intake of the nuclear power plant and is used for detecting the gathering state of marine organisms; the progressive trash rack subsystem is arranged in the water taking open channel and comprises a first trash rack, a second trash rack and a third trash rack; and the tension monitoring subsystem comprises a tension monitoring module arranged on at least one trash rack main cable and is used for monitoring the running state of the trash rack. The safety of a cold source of the nuclear power plant can be further improved, and marine organisms are better prevented from blocking a water intake of the nuclear power plant.
Description
Technical Field
The invention relates to the technical field of nuclear power cold source safety, in particular to a nuclear power plant cold source safety system.
Background
At present, the nuclear power station adopting an open channel type water taking mode adopts the technical scheme of realizing the safety guarantee of a nuclear power cold source, and generally comprises a trash rack, marine organism monitoring and early warning, an underwater gas barrier and the like. However, the current solution can not completely avoid the occurrence of the operation event that marine organisms block the water intake, and in recent years, the economic efficiency and the reliability of a nuclear power unit are seriously affected by the occurrence of the operation event that the marine organisms block the water intake for many times in a domestic nuclear power plant.
Disclosure of Invention
In order to solve the problems, the invention provides a nuclear power plant cold source safety system.
The embodiment of the invention provides a cold source safety system of a nuclear power plant, which comprises: the system comprises a marine organism monitoring subsystem, a progressive trash rack subsystem and a tension monitoring subsystem;
the marine organism monitoring subsystem is arranged in a set range of a water intake of the nuclear power plant and is used for detecting the gathering state of marine organisms;
the progressive trash rack subsystem is arranged in the water intake open channel and comprises a first trash rack, a second trash rack and a third trash rack, wherein the three trash racks are arranged in a progressive manner according to the depth of the water intake;
the tension monitoring subsystem comprises tension monitoring modules arranged on at least one trash rack main cable and is used for monitoring the running state of the trash rack.
In some specific embodiments, the marine growth monitoring subsystem comprises:
the water surface monitoring module is used for monitoring the gathering state of marine organisms above the water surface within the set range of the water intake;
and the underwater monitoring module is used for monitoring the gathering state of the marine organisms below the water surface within the set range of the water intake.
In some specific embodiments, the water surface monitoring module comprises:
the system comprises water surface dual-spectrum camera monitoring equipment, a 3D omnidirectional remote control holder, video switching and control equipment, power supply equipment and storage equipment.
In some specific embodiments, the underwater monitoring module comprises:
the sonar detection device comprises a sonar probe, a telescopic sonar lifting support, a signal processor and a controller, wherein the telescopic sonar lifting support, the signal processor and the controller are used for carrying out local or remote control or maintenance on the sonar probe.
In some specific embodiments, the first course trash rack is a planar net disposed at the intake gateway door.
In some specific embodiments, the planar net is a floating planar net, and is arranged in a herringbone shape and extends to the bottom of the channel.
In some specific embodiments, the second trash rack is a net bag arranged in the water intake open channel.
In some specific embodiments, the third trash rack is a net bag arranged in the water intake open channel at a preset distance behind the second trash rack.
In some specific embodiments, the net bag is a full-section floating net bag and is arranged in a straight line shape.
In some specific embodiments, the trash rack between the two ends of the second trash rack or the third trash rack and the shore is a plane net.
In some specific embodiments, the tension monitoring module comprises a tension sensor, and the precision grade of the tension sensor is not lower than 0.05, and the sealing grade is not lower than IP68.
In some specific embodiments, the nuclear power plant cold source safety system further comprises:
and the centralized control subsystem is used for remotely controlling the cold source safety system of the nuclear power plant according to the monitoring data of the marine organism monitoring subsystem and the tension monitoring subsystem.
The beneficial effects of the above technical scheme provided by the embodiment of the present disclosure at least include:
through setting up three cold source safety subsystems of progressive depth defense, further improved nuclear power plant cold source safety, can prevent that marine life from blockking up the nuclear power plant intake better. Particularly, marine organism concentration data information near the water intake can be provided, so that the problem of marine organism accumulation near the water intake can be dealt with and treated in time; the marine life can be cut and salvaged more efficiently; the operation state of the trash rack can be provided, so that marine organism outbreak countermeasures can be dynamically adjusted according to monitoring data. The functions are combined, the capability of the cold source safety system of the nuclear power plant for preventing marine organisms from blocking a water intake of the nuclear power plant is obviously improved, and the running stability of the nuclear power unit is improved.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the disclosure. The objectives and other advantages of the disclosure will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
The technical solution of the present disclosure is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the example of a specific implementation of the disclosure, do not constitute a limitation of the disclosure. In the drawings:
FIG. 1 is a diagram illustrating a nuclear power plant cold source safety system architecture according to an exemplary embodiment;
FIG. 2 is a topological diagram of a marine growth monitoring subsystem architecture, according to an exemplary embodiment;
FIG. 3 is a flat layout view of a trash rack shown in accordance with an exemplary embodiment;
FIG. 4 is a first trash rack cross-sectional layout view shown in accordance with an exemplary embodiment;
fig. 5 is a cross-sectional view of a second trash rack according to an exemplary embodiment;
fig. 6 is a cross-sectional view of a third trash rack shown in accordance with an exemplary embodiment;
FIG. 7 is a schematic diagram illustrating a tension monitoring subsystem configuration according to an exemplary embodiment.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the technical solutions of the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems existing in the prior art, the embodiment of the disclosure provides a cold source safety system of a nuclear power plant.
The embodiment of the present disclosure provides a nuclear power plant cold source safety system, which is structurally shown in fig. 1 and includes: the system comprises a marine organism monitoring subsystem, a progressive trash rack subsystem and a tension monitoring subsystem; the marine organism monitoring subsystem is arranged in a set range of a water intake of the nuclear power plant and is used for detecting the gathering state of marine organisms; the progressive trash rack subsystem is arranged in the water intake open channel and comprises a first trash rack, a second trash rack and a third trash rack, and the three trash racks are arranged in a progressive manner according to the depth of the water intake; the three trash racks solve the problem that the marine life cannot be cleared in time due to the fact that the working surface of the salvage system is insufficient after the marine life erupts; the tension monitoring subsystem comprises a tension monitoring module arranged on at least one main cable of the trash rack and is used for monitoring the running state of the trash rack; a trash rack tension monitoring subsystem solves the problems that operators in a nuclear power plant do not master the operation state of a trash rack and cannot dynamically adjust marine organism outbreak countermeasures according to monitoring data.
In some specific embodiments, the marine growth monitoring subsystem comprises: the water surface monitoring module is used for monitoring the gathering state of marine organisms above the water surface within the set range of the water intake; and the underwater monitoring module is used for monitoring the gathering state of marine organisms below the water surface within the set range of the water intake.
In some specific embodiments, the water surface monitoring module comprises: the system comprises water surface dual-spectrum camera monitoring equipment, a 3D omnidirectional remote control holder, video switching and control equipment, power supply equipment and storage equipment.
In some specific embodiments, the underwater monitoring module comprises: sonar probe, scalable sonar lifting support, signal processor and controller are used for carrying out local or remote control or maintenance to the sonar probe. The water surface monitoring module is combined with the underwater monitoring module, so that the problem of a monitoring blind area caused by the fact that operators in a nuclear power plant do not master the biological concentration data near a water intake is solved.
The first trash rack is a plane net arranged at the water taking open channel door. The plane net is a floating plane net, is arranged in a herringbone mode and extends to the bottom of the channel. The second trash rack is a net bag arranged in the water taking open channel. The third trash rack is a net bag which is arranged in the water taking open channel and is arranged at a preset distance behind the second trash rack. The string bag is a full-section floating type string bag and is arranged in a straight line shape. The trash screens between the two ends of the second trash screen or the third trash screen and the shore are plane screens. The tension monitoring module comprises a tension sensor, the precision grade of the tension sensor is not lower than 0.05, and the sealing grade of the tension sensor is not lower than IP68.
The nuclear power plant cold source safety system further comprises: and the centralized control subsystem is used for remotely controlling the cold source safety system of the nuclear power plant according to the monitoring data of the marine organism monitoring subsystem and the tension monitoring subsystem.
In some alternative embodiments, the invention consists of three parts, specifically as follows:
the hardware equipment of the marine organism monitoring subsystem comprises underwater sonar monitoring equipment and water surface dual-spectrum camera monitoring equipment.
Underwater sonar monitoring equipment, specifically sonar probe, scalable sonar lifting support, signal processor, controller can realize sonar on-the-spot/remote control, maintenance, surface of water closed circuit television monitoring facilities, specifically is two spectral camera, 3D omnidirectional remote control cloud platform, video switching and control equipment, power equipment, storage device.
In a specific embodiment, the topology of the marine organism monitoring subsystem is shown in fig. 2, which shows the setup and connection of the equipment electronics and front-end monitoring, including PDU socket, server, switch, centralized control center display, hard disk video recorder, signal centralized control box, comprehensive wiring box, wideband digital sonar system, multi-beam imaging sonar system, tension monitoring sensor, dual-spectrum camera, etc., the power supply includes ac 220V and ac 380V, and the network connection includes RJ45 network interface circuit and optical fiber link.
The software of the marine life monitoring subsystem consists of the following parts: the system comprises an ocean database acquisition software module (an underwater sonar monitoring data software submodule, a dual-spectrum camera monitoring data software submodule, a trash rack tension monitoring software submodule, a meteorological data software submodule, a water intake marine organism database software submodule, a water quality software submodule and the like), a hardware control software module, a data storage software module, a data processing software module, a data mining software module, an information release software module and the like.
Referring to fig. 3, the progressive trash rack subsystem is composed of three full-section trash racks arranged in an open channel for water intake of a nuclear power plant, the first trash rack is arranged at a door of a breakwater port for water intake, the arrangement of the first trash rack is as shown in fig. 3 and 4, the first trash rack is arranged in a floating mode and in a herringbone mode, the trash racks extend to the bottom of the channel and are made of ultra-high molecular weight polyethylene nets, and the meshes are 30mm × 30mm. In some alternative embodiments, as shown in fig. 4, the first trash rack net includes mounds on the embankment, high-column cap, pontoon, plane net, main cable, anchor block, etc., and the arrangement of the plane net includes long span and short span.
The second trash rack is arranged in the open channel, and is arranged in a straight line by adopting a full-section floating net bag as shown in figures 3 and 5. The net bag is made of an ultra-high molecular weight polyethylene net, the length of a single net bag is about 30m, the width of the single net bag is about 6m, the mesh of the guide net bag is 10 x 10mm, and the length of the guide net bag is 22m; the collecting net bag has 5mm of meshes and 8m of length. An ultra-high molecular weight polyethylene plane net is adopted. In some alternative embodiments, as shown in fig. 5, the second trash rack includes pier on the embankment, buoy, plane net, net bag, underwater anchor block, underwater bottom cable, vertical main cable, surface main cable, etc.
The third trash rack is arranged in the water taking open channel, and is arranged in a straight line by adopting a full-section floating net bag as shown in figures 3 and 6. The material and the size of the net bag are the same as those of the second trash blocking net bag. The trash rack between the two ends and the shore adopts an ultrahigh molecular weight polyethylene plane net. Two ship piers are arranged at an interval of 30m and used for passing a ship, and a manual winch, a matched pulley block and the like are arranged on the ship piers. In some alternative embodiments, as shown in fig. 6, the third trash rack includes pier on the bank, pontoon, plane net, net bag, underwater anchor block, underwater bottom cable, vertical main cable, surface main cable, pier of ship passing section, etc.
The tension monitoring subsystem comprises a trash rack main cable tension monitoring module and is used for monitoring the main cable tension caused by intercepting marine organisms and monitoring and judging the operating state of the trash rack through the main cable tension value. The tension monitoring subsystem measures underwater tension through the strain type force transducer, transmits the underwater tension to a control box on a pile foundation through a signal line, performs data processing and conversion through a weighing instrument of the control box, sends weight data to a marine organism monitoring and early warning platform through optical fibers, and performs data storage, query and waveform drawing. The rated load of the tension sensor is calculated and selected according to the stress of the trash rack, the corrosion resistance, the impact resistance and the sealing performance are good, the normal operation can be realized under the condition that the water depth is 15m, the precision grade is not lower than 0.05, the safety load is 150 percent F.S, the breaking load is 300 percent F.S, and the sealing grade is not lower than IP68. In some optional embodiments, as shown in fig. 7, the tension monitoring subsystem includes an in-situ control box, a stress pin, a remote server, and a main cable of the trash rack, the stress pin has a tension sensor built therein, the tension sensor built in the stress pin measures tension borne by the main cable of the trash rack, the in-situ control box includes a power conversion module, a microcontroller and a signal transmission module, and the microcontroller has functions of data processing, data display, alarm indication, and the like.
Among the above-mentioned nuclear power plant's cold source safety coefficient of this embodiment, through setting up the three cold source safety subsystem of progressive formula depth defense, improved nuclear power plant's cold source safety, can prevent better that marine life from blockking up the nuclear power plant intake. Particularly, the water surface monitoring module is combined with the underwater monitoring module, so that the problem of a monitoring blind area caused by the fact that operators in a nuclear power plant do not master the marine organism concentration data near a water intake is solved, and marine organism concentration data information near the water intake can be provided, so that the problem of marine organism aggregation near the water intake can be dealt with and treated in time; the three trash rack systems solve the problem that the marine life cannot be timely cleaned and transported due to the fact that the working surface of the fishing system is insufficient after marine life erupts, and can effectively intercept and fish the marine life; the tension monitoring subsystem solves the problems that operators in a nuclear power plant do not master the operation state of the trash rack and can not dynamically adjust marine organism outbreak countermeasures according to monitoring data, and can provide the operation state of the trash rack so as to dynamically adjust the marine organism outbreak countermeasures according to the monitoring data. The functions are combined, the capability of the cold source safety system of the nuclear power plant for preventing marine organisms from blocking a water intake of the nuclear power plant is obviously improved, and the running stability of the nuclear power unit is improved.
Any modification, supplement, equivalent replacement, etc. within the principle scope of the disclosed technical solution should still fall within the scope of the patent coverage of the disclosed technical solution.
Claims (12)
1. A nuclear power plant cold source safety system, comprising:
the marine organism monitoring subsystem is arranged in a set range of a water intake of the nuclear power plant and is used for detecting the gathering state of marine organisms;
the progressive trash rack subsystem is arranged in the water taking open channel and comprises a first trash rack, a second trash rack and a third trash rack, wherein the three trash racks are arranged progressively according to the depth of the water taking opening;
and the tension monitoring subsystem comprises a tension monitoring module arranged on at least one trash rack main cable and is used for monitoring the running state of the trash rack.
2. The system of claim 1, wherein the marine growth monitoring subsystem comprises:
the water surface monitoring module is used for monitoring the gathering state of marine organisms above the water surface within the set range of the water intake;
and the underwater monitoring module is used for monitoring the gathering state of the marine organisms below the water surface within the set range of the water intake.
3. The system of claim 2, wherein the surface monitoring module comprises:
the system comprises water surface dual-spectrum camera monitoring equipment, a 3D omnidirectional remote control holder, video switching and control equipment, power supply equipment and storage equipment.
4. The system of claim 2, wherein the subsea monitoring module comprises:
sonar probe, scalable sonar lifting support, signal processor and controller are used for carrying out local or remote control or maintenance to the sonar probe.
5. The system of claim 1, wherein said first trash rack is a planar net disposed at said intake opening door.
6. The system of claim 5, wherein the planar mesh is a floating planar mesh arranged in a herringbone pattern extending to the bottom of the trench.
7. The system of claim 1, wherein the second trash rack is a net bag disposed within the water intake open channel.
8. The system of claim 1, wherein the third trash rack is a net bag disposed within the water intake channel a predetermined distance behind the second trash rack.
9. The system as claimed in claim 7 or 8, wherein the net is a full-section floating net in a straight-line arrangement.
10. The system of claim 7 or 8, wherein the second or third trash rack is a planar rack between the ends of the trash rack and the shore.
11. The system of claim 1, wherein the tension monitoring module comprises a tension sensor having an accuracy rating of no less than 0.05 and a seal rating of no less than IP68.
12. The system of claim 1, wherein the system further comprises:
and the centralized control subsystem is used for remotely controlling the cold source safety system of the nuclear power plant according to the monitoring data of the marine organism monitoring subsystem and the tension monitoring subsystem.
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| CN202211035712.8A CN115541704A (en) | 2022-08-26 | 2022-08-26 | Nuclear power plant cold source safety system |
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| CN202211035712.8A CN115541704A (en) | 2022-08-26 | 2022-08-26 | Nuclear power plant cold source safety system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279413A (en) * | 2021-11-18 | 2022-04-05 | 国核电力规划设计研究院有限公司 | Submarine topography precision automatic quality detection method and device based on multi-beam sounding |
| CN117364731A (en) * | 2023-12-04 | 2024-01-09 | 交通运输部天津水运工程科学研究所 | Method for automatically cleaning foreign matters floating along dikes in coastal power plant |
| CN118033660A (en) * | 2024-04-11 | 2024-05-14 | 上海阿波罗机械股份有限公司 | Acousto-optic identification method and system for cold source disaster-causing object |
-
2022
- 2022-08-26 CN CN202211035712.8A patent/CN115541704A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114279413A (en) * | 2021-11-18 | 2022-04-05 | 国核电力规划设计研究院有限公司 | Submarine topography precision automatic quality detection method and device based on multi-beam sounding |
| CN117364731A (en) * | 2023-12-04 | 2024-01-09 | 交通运输部天津水运工程科学研究所 | Method for automatically cleaning foreign matters floating along dikes in coastal power plant |
| CN117364731B (en) * | 2023-12-04 | 2024-02-23 | 交通运输部天津水运工程科学研究所 | Method for automatically cleaning foreign matters floating along dikes in coastal power plant |
| CN118033660A (en) * | 2024-04-11 | 2024-05-14 | 上海阿波罗机械股份有限公司 | Acousto-optic identification method and system for cold source disaster-causing object |
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