CN117364731A - Method for automatically cleaning foreign matters floating along dikes in coastal power plant - Google Patents
Method for automatically cleaning foreign matters floating along dikes in coastal power plant Download PDFInfo
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- CN117364731A CN117364731A CN202311644453.3A CN202311644453A CN117364731A CN 117364731 A CN117364731 A CN 117364731A CN 202311644453 A CN202311644453 A CN 202311644453A CN 117364731 A CN117364731 A CN 117364731A
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- 238000004140 cleaning Methods 0.000 title claims abstract description 80
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- 238000012544 monitoring process Methods 0.000 claims abstract description 47
- 230000000903 blocking effect Effects 0.000 claims abstract description 23
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- 238000009434 installation Methods 0.000 claims abstract description 8
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
- E02B15/104—Conveyors; Paddle wheels; Endless belts
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B31/00—Predictive alarm systems characterised by extrapolation or other computation using updated historic data
Abstract
The invention provides a method for automatically cleaning foreign matters floating along a dike in a coastal power plant, which relates to the technical field of water taking engineering infrastructures, and comprises the following steps: acquiring path information of a disaster causing object entering a water intake; determining the installation positions of a cleaning device and a marine organism monitoring device according to the path information, wherein the marine organism monitoring device is used for monitoring the enrichment degree of disaster-causing objects in a corresponding range, and the cleaning device is used for salvaging and conveying the disaster-causing objects in the corresponding range; and starting the cleaning device when the marine organism monitoring equipment meets the triggering condition. According to the invention, a series of cantilevers and blocking net units are arranged on the outer edge of the nuclear power water intake open channel breakwater to collect disaster-causing objects, and the disaster-causing objects are conveyed to the shore through the conveying system to be properly treated, so that floating foreign matters are prevented from suddenly rushing into the water intake in a large quantity, the effect of reducing entrainment effect is achieved, and the process can be automatically started and stopped under the action of the mechanical sensor and the control system.
Description
Technical Field
The invention relates to the technical field of water taking engineering infrastructures, in particular to a method for automatically cleaning floating foreign matters along a dike in a coastal power plant.
Background
The coastal power plant adopts a direct current circulating water supply mode to cool the generator set, and a large amount of cooling water is needed in the operation process. Under the action of water taking, the small marine organisms which have weak swimming capability and smaller body size and can pass through the filter screen to enter the condenser can continuously enter the water taking structure, and the effect is entrainment. The blockage of the water intake system of the power plant can seriously affect the operation of the unit, so that the unit is forced to reduce power or shut down, and therefore, the reduction of the entrainment effect of the water intake structure is an urgent requirement for the safe operation of the power plant. The current water taking structure types mainly comprise an open channel and a culvert, the open channel forms are used for building a breakwater which is exposed out of the water surface, and cooling water sources are extracted from the end of the breakwater through a pump house, so that the current water taking structure forms are the main current water taking structure types. The disaster-causing sea creatures are various in types and can be roughly classified into a water surface floating type, an underwater floating type and a near-bottom migration type. The disaster-causing matters causing the water intake blocking event of the power plant at present are usually water surface floating type and water floating type, such as floating garbage, jellyfish, shrimp, spike cap snail, algae and the like. Wherein, disaster-causing events caused by jellyfish (including jellyfish, white jellyfish and sand jellyfish) account for about 59 percent, and are main biological blockage sources for water taking blockage events at home and abroad.
At present, in order to prevent blockage from suddenly rushing into a water intake open channel, a heavy or multiple interception net is arranged in the water intake open channel to limit the blockage disaster-causing matters from entering a water intake front pool. When the marine organisms in the interception net reach a certain amount, continuous interception is realized by cleaning and replacing the net. In addition, when the outbreak season of the marine organisms comes, a power plant operator usually adds a fishing boat outside the water intake open channel to carry out trawl monitoring and salvage, and manpower and material resources are huge. The jellyfish body is mainly composed of water and is composed of inner and outer germ layers, and a thick mesogel layer is arranged between the inner and outer germ layers, so that the jellyfish body is transparent and has a floating effect. At present, a plurality of interception nets are usually arranged in a water intake open channel of a nuclear power plant, however, when a large amount of water is introduced, the huge pressure difference at two sides of the nets causes jellyfish to be cut by the nets, and jellyfish fragments still can enter a water intake front pool through the interception nets. Therefore, new methods still need to be further explored for intercepting and entrainment inhibition of jellyfish, and the traditional intercepting net tools and fishing vessels cannot be completely relied on for interception.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the technical problems in the prior art. Therefore, the invention aims to provide a method for automatically cleaning floating foreign matters along a dike in a coastal power plant, which provides a large-batch and continuous collection scheme for automatically carrying out in advance on a drifting path before disaster-causing matters enter a water intake, and achieves the effect of reducing the entrainment effect of water intake.
To achieve the above object, the present application provides a method for automatically cleaning foreign matters floating along a dike in a coastal power plant, comprising:
acquiring path information of a disaster causing object entering a water intake;
determining the installation positions of a cleaning device and a marine organism monitoring device according to the path information, wherein the marine organism monitoring device is used for monitoring the enrichment degree of disaster-causing objects in a corresponding range, and the cleaning device is used for salvaging and conveying the disaster-causing objects in the corresponding range;
and starting the cleaning device when the marine organism monitoring equipment meets the triggering condition.
Further, when the marine organism monitoring equipment meets the triggering condition, starting the cleaning device comprises the step of starting the cleaning device to enter a standby state when the marine organism monitoring equipment judges that the enrichment degree of disaster-causing objects in the corresponding range reaches a preset threshold value.
Further, the method further comprises:
acquiring disaster causing object characteristic information, wherein the disaster causing object characteristic information comprises disaster causing object types and corresponding size information in disaster causing seasons;
and determining structural design parameters of the cleaning device according to the disaster causing characteristic information, and monitoring the starting strategy of the equipment.
Further, the cleaning device comprises a blocking net structure, a cantilever structure and a conveying system, the blocking net structure and the cantilever structure are matched to realize salvage, lifting and overturning dumping of disaster-causing objects, and the disaster-causing objects are overturned and dumped into a collecting tank of the conveying system and conveyed to a land by the conveying system.
Further, determining the installation positions of the cleaning device and the marine organism monitoring equipment according to the path information comprises: the marine organism monitoring equipment is arranged at the initial end of a path of a disaster-causing object entering the water intake, and the cleaning devices are arranged in a plurality of parallel and in a key type and are arranged outside the corresponding breakwater; the net blocking structure of each cleaning device is provided with an independent net force sensor, and when the detection value of the net force sensor reaches a first threshold value, the corresponding cantilever structure is started to salvage, lift and overturn and dump disaster-causing objects.
Further, the determining structural design parameters of the cleaning device according to the disaster-causing characteristic information includes: the water permeable holes are formed in the blocking net structure and the collecting groove of the conveying system, and the sizes of the water permeable holes are set according to disaster-causing object types in disaster-causing seasons and corresponding size information.
Further, a pressure sensor is arranged at the bottom of the collecting tank of the conveying system and used for detecting the weight of the disaster-causing objects collected in the collecting tank of the conveying system, and when the detection value of the pressure sensor reaches a second threshold value, the corresponding conveying system is started to convey the disaster-causing objects to the land area.
Furthermore, the marine organism monitoring equipment is set to be sonar and optical detection equipment and is used for monitoring the position and the density distribution of the disaster-causing objects.
The beneficial effects are that: the invention provides a large-batch and continuous collection scheme for automation in advance on a drifting path before disaster-causing objects enter the water intake, and the effect of reducing the water intake entrainment effect is realized. A series of cantilevers and blocking net units are arranged on the outer edge of a nuclear power water intake open channel breakwater to collect disaster-causing objects, the disaster-causing objects are conveyed to the shore through a conveying system to be properly treated, floating foreign objects are prevented from suddenly rushing into a water intake in a large quantity, the effect of reducing entrainment effect is achieved, and under the action of a mechanical sensor and a control system, the process can be started and stopped automatically.
Drawings
FIG. 1 is a flow chart of a first embodiment of a method for automatically cleaning foreign matter floating along a dike in an coastal power plant;
FIG. 2 is a flow chart of a second embodiment of a method for automatically cleaning foreign matter floating along a dike in a coastal power plant according to the present invention;
FIG. 3 is a schematic view of a breakwater direction of a nuclear power water intake structure breakwater arrangement and a water intake gate emergency flow field in a method for automatically cleaning floating foreign matters in the breakwater in an coastal power plant;
FIG. 4 is a schematic side view of a first embodiment of a cleaning apparatus in a method for automatically cleaning foreign objects floating along a dike in a coastal power plant according to the present invention;
FIG. 5 is a schematic three-dimensional view of a first embodiment of a cleaning apparatus in a method for automatically cleaning foreign objects floating along a dike in a coastal power plant according to the present invention;
FIG. 6 is a schematic three-dimensional structure of a second embodiment of a cleaning device in a method for automatically cleaning foreign matters floating along a dike in a coastal power plant;
fig. 7 is a schematic workflow diagram of a method for automatically cleaning foreign matters floating along a dike in an coastal power plant.
In the figure: 1. a breakwater; 2. a collection tank; 3. a single cantilever and a barrier net main body; 4. a rotating shaft; 5. sea living things like jellyfish; 6. a conveyor belt; 7. a barrier net bag part.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the drawings.
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a first embodiment of the present invention provides a method for automatically cleaning floating foreign matters along a dike in a coastal power plant, which includes:
s1, acquiring path information of a disaster causing object entering a water intake;
s2, determining the installation positions of a cleaning device and marine organism monitoring equipment according to the path information, wherein the marine organism monitoring equipment is used for monitoring the enrichment degree of disaster-causing objects in a corresponding range, and the cleaning device is used for salvaging and conveying the disaster-causing objects in the corresponding range;
and S3, starting the cleaning device when the marine organism monitoring equipment meets the triggering condition.
When the marine organism monitoring equipment meets the triggering condition, starting the cleaning device, and when the marine organism monitoring equipment judges that the enrichment degree of disaster-causing objects in the corresponding range reaches a preset threshold value, starting the cleaning device to enter a standby state. Specifically, the marine organism monitoring device is set to be a sonar and an optical detection device, and is used for monitoring the position and the density distribution of the disaster-causing object, and the triggering condition can be set to be that the marine organism abundance reaches a preset threshold A. The cleaning device comprises a blocking net structure, a cantilever structure and a conveying system, the blocking net structure and the cantilever structure are matched to realize salvage, lifting and overturning dumping of disaster-causing objects, and the disaster-causing objects are overturned and dumped into a collecting tank 2 of the conveying system and conveyed to a land area by the conveying system. Determining the installation positions of the cleaning device and the marine organism monitoring equipment according to the path information comprises the following steps: the marine organism monitoring equipment is arranged at the initial end of a path of a disaster-causing object entering the water intake, and the cleaning devices are arranged in a plurality of parallel and in a key type and are arranged outside the corresponding breakwater 1; the net blocking structure of each cleaning device is provided with an independent net force sensor, and when the detection value of the net force sensor reaches a first threshold value, the corresponding cantilever structure is started to salvage, lift and overturn and dump disaster-causing objects. The bottom of the collecting tank 2 of the conveying system is provided with a pressure sensor for detecting the weight of disaster-causing objects collected in the collecting tank 2 of the conveying system, and when the detection value of the pressure sensor reaches a second threshold value, the corresponding conveying system is started to convey the disaster-causing objects to the land area.
The invention provides a large-batch and continuous collection scheme for automation in advance on a drifting path before disaster-causing objects enter the water intake, and the effect of reducing the water intake entrainment effect is realized. The disaster-causing objects are collected by arranging a series of cantilevers and blocking net units at the outer edge of the nuclear power water intake open channel breakwater 1 and are conveyed to the shore through the conveying system to be properly processed, so that floating foreign matters are prevented from suddenly rushing into the water intake in a large quantity, the effect of reducing the entrainment effect is achieved, and the process can be started and stopped automatically under the action of the mechanical sensor and the control system.
As shown in fig. 2, a second embodiment of the present invention provides a method for automatically cleaning floating foreign matters along a dike in a coastal power plant, which includes:
s1, acquiring path information of a disaster causing object entering a water intake;
s2, determining the installation positions of a cleaning device and marine organism monitoring equipment according to the path information, wherein the marine organism monitoring equipment is used for monitoring the enrichment degree of disaster-causing objects in a corresponding range, and the cleaning device is used for salvaging and conveying the disaster-causing objects in the corresponding range;
s3, obtaining disaster causing object characteristic information, wherein the disaster causing object characteristic information comprises disaster causing object types and corresponding size information in disaster causing seasons;
s4, determining structural design parameters of the cleaning device and a starting strategy of the monitoring equipment according to the disaster causing characteristic information;
s5, starting the cleaning device when the marine organism monitoring equipment meets the triggering condition.
The starting strategy of the monitoring equipment is determined according to the disaster causing characteristic information, and particularly, the starting frequency of the monitoring equipment can be improved in a season of high-rise.
As shown in fig. 3, the current coastal power plant water intake structures form a plurality of along-dyke flows, and marine disaster-causing objects are conveyed along the along-dyke flows, so that the invention provides a technology for automatically intercepting a large quantity of floating jellyfish in advance at the outer side of a water intake door in order to overcome the defect that the blocking net has insufficient protection capability on jellyfish plugs in the current nuclear power water intake safety guarantee technology. The technical scheme is that jellyfish floaters moving along the dike are intercepted in advance at the outer side of the breakwater 1 of the coastal power plant, and the starting frequency of monitoring equipment is improved by utilizing optical and acoustic sensors in the high-rise season of jellyfish so as to strengthen monitoring and early warning; a series of 'cantilevers and blocking nets' are arranged on the outer side of the breakwater 1 and are salvaged, and net tension sensors are arranged at the joints of the blocking nets and the cantilevers to monitor the stress of the blocking nets in real time. When the tensile force of the net tension sensor reaches a certain threshold value, the cantilever at the outer side of the breakwater 1 is automatically started to lift and rotate, and jellyfish filled in the blocking net at the far end of the cantilever is lifted up and poured into the collecting tank 2. Jellyfish bodies are transported to a land storage yard through a conveyor belt 6, a pressure sensor is arranged below the conveyor belt 6, and after the jellyfish is filled to a certain mass, the conveyor belt 6 is started to transport marine life disaster-causing objects. The technical system can intercept the existing water intake marine structures and marine organisms along the embankment in advance by maximally utilizing the positions of the nuclear power existing water intake marine structures and the characteristics of the marine organisms along the embankment, so that the number of jellyfish entering the water intake can be greatly reduced; by adopting optical and acoustic sensors, jellyfish enrichment can be found out at the highest speed; by adopting the combination of the mechanical sensor and the control system, the automatic salvage and the conveying of disaster-causing objects can be realized, the investment of manpower and material resources is reduced, and meanwhile, the cleaning pressure of the interception net is also reduced.
As shown in fig. 4 and fig. 5, a schematic structural diagram of a first embodiment of the cleaning device is shown, the left side of fig. 4 is a schematic structural diagram of the cleaning device in a standby state, the right side of fig. 4 is a schematic structural diagram of the cleaning device in a standby state, and when the detection value of the net tension sensor reaches a first threshold value, a corresponding cantilever structure is started to salvage, lift and overturn and dump disaster-causing objects. The method for automatically cleaning the floating foreign matters along the dike in the coastal power plant comprises a marine organism monitoring device and a cleaning device, wherein the cleaning device comprises the following components: a series of "cantilever + barrier" fishing units outside the breakwater 1, and a conveyor system at the top of the breakwater 1. The marine organism monitoring equipment comprises sonar and optical detection equipment, and the enrichment degree and the position of jellyfish in the sea area of nuclear power engineering are monitored through the sonar and the optical detection equipment. When a large number of jellyfishes are monitored to have a trend of fluctuating tide along the outer side of the breakwater 1 to enter the water intake, the cleaning device is started, and the salvaging unit at the outer side of the breakwater 1 lifts up along the breakwater jellyfishes and pours into the collecting tank 2 of the conveying system. Jellyfish bodies are transported to a land storage yard by a conveyor belt 6. The technical system can reduce the plugs entering the water intake open channel in a certain proportion, and is of great help to relieve the interception, cleaning pressure and external fishing pressure of the tools in the open channel.
Specifically, the outside sea is along the dyke flow direction as shown in fig. 3, the sea living things such as jellyfish aggregate 5 is most transported along the outside sea along the dyke flow direction, as shown in fig. 4 and 5, single cantilever and block main body 3 are installed outside breakwater 1 through pivot 4, the conveying system includes collecting vat 2 and conveyer belt 6 that set up at breakwater 1 top, be provided with a plurality of archs that are used for increasing frictional force on the conveyer belt 6, the block structure includes the block main body that sets up outside breakwater 1 and the block net part 7 that sets up in block main body bottom, the junction of block net part 7 and cantilever sets up the netting gear tension transducer, wherein, all be equipped with permeable hole or grid on marine living things block net part 7 and single cantilever and the block main body 3, help the jellyfish to rise and leave the surface of water and drop unnecessary water in the transportation process. The aperture or the spacing of the grids is determined according to parameters such as the size of the jellyfish causing the disaster, the stress characteristics of the jellyfish and the like. Too small aperture or grid spacing will cause too large overall quality of the turning groove and poor draining effect; too large a pore size or grid spacing will cause jellyfish to crack or leak out, making collection difficult. And a cantilever barrier net system prototype needs to be manufactured, and a physical model test is carried out for determination. The quality of the marine biological disaster is reduced by draining, and the mechanical stress is further reduced. The structure of the control system for driving the rotation shaft 4 to rotate is omitted in the drawings, and this part can be realized by providing a driving device fixedly installed on the breakwater 1, and a specific arrangement scheme thereof can be considered by a person skilled in the art and will not be described herein.
As shown in fig. 6, a schematic structural diagram of a second embodiment of the cleaning device is shown, and the difference between the second embodiment and the first embodiment is that a collecting net bag is arranged on the side surface of the cantilever, and the intercepting and collecting effects can be maximized due to the unidirectional transportation along the dyke flow and the side surface intercepting net bag arranged on the windward side.
Specifically, the width and underwater depth of the cantilever, the aperture or grid spacing of the holes, the starting threshold of the tension pressure sensor and other parameters are required to be determined based on the vertical position of the water body of the engineering sea area marine biological distribution and through a series of mechanical and hydrodynamic test demonstration. Too small aperture or grid spacing will cause too large overall quality of the turning groove and poor draining effect; too large a pore size or grid spacing will cause jellyfish to crack or leak out, making collection difficult. The model machine is required to be manufactured, a physical model test is carried out, and according to the size and the quality of the jellyfish adult, after the jellyfish is lifted by the net bag, the jellyfish can be drained effectively, and the jellyfish cannot leak out of the net bag. In the physical model test, the parameters of the total force born by the breakwater 1, the stress of the rotating shaft 4 and the like are required to be measured, and the optimal scheme is determined.
The following calculation formula is provided: cantilever rotating shaft 4 tension = cantilever dead weight + sea biological mass + wave current force + water resistance, according to bernoulli's law and stokes' law of fluid mechanics, can obtain the computational formula of the motion resistance of object in water:
F = 0.5 * ρ * A * Cd * v^2，
wherein F is water resistance, ρ is water density, A is projection area of cantilever and marine organism, cd is resistance coefficient, v is cantilever rotation linear speed, resistance coefficient Cd is a constant related to object shape and roughness, and corresponding resistance coefficient can be obtained by experimental measurement or numerical simulation method for different object shapes.
The following describes the specific implementation steps of the method for cleaning the foreign matter floating along the dike:
as shown in fig. 7, the method includes the following five steps:
(1) Step 1: the method is characterized in that on-site investigation and data collection are carried out on a target coastal power plant for frequently generating disaster-causing events caused by marine organisms such as jellyfish and the like, the detection of meteorological conditions (wind speed and wind direction) and hydrodynamic conditions (tide level, flow speed and flow direction) is realized by monitoring environmental conditions, the occurrence time (season, lunar calendar, tide type in burst period and the like) of the disaster-causing events is clear, the path of the disaster-causing object entering the water intake, the size of the jellyfish in the disaster-causing season and the like are provided with basic data for the design of subsequent mechanical devices. And the early warning of the power conditions of intrusion along the embankment transportation is formed in the marine organism outburst season, so that the setting number of monitoring equipment and the monitoring starting frequency can be improved.
(2) Step 2: based on the marine organism investigation data in the step 1, marine organism acoustic and optical monitoring equipment is arranged to identify marine organism species, and the number and distribution of corresponding disaster causing objects are identified. Based on the disaster-causing event, a marine organism disaster-causing abundance preset threshold A is set, and image signals in the monitoring equipment are subjected to calibration verification. I.e. to what extent the marine organism density identified in the marine organism monitoring device is, the system will determine that an impending marine organism intrusion water intake event is to occur.
(3) Step 3: when the sea biological abundance in the sea biological monitoring equipment reaches a preset threshold A, the cleaning device (i.e. the cantilever and the blocking net system) enters a standby state; when the detection value of the net tension sensor reaches a first threshold value (N1), starting the salvaging mechanical equipment. The single cantilever and the blocking net main body 3 are driven by the rotating shaft 4, the marine organisms transported along the breakwater are lifted and poured into the collecting tank 2 at the top of the breakwater 1, and the bottom of the collecting tank 2 is a conveying system for transporting the marine organisms to the land. The bottom of the collecting tank 2 is provided with a pressure sensor, and after the detection value of the pressure sensor reaches a second threshold value (N2), the conveying device is started. The collecting tank 2 and each panel of the fishing system are provided with water permeable holes or grids, so that excessive water overflows during the rotation of the tank, and the mechanical load is reduced. Because the cantilever is driven by the rotating shaft 4, the stress of the rotating shaft 4 and the stress of the fixed end connecting member on the breakwater 1 structure are larger. The cantilever size is not too large. Therefore, a series of parallel cantilevers and blocking nets are designed, and a tension sensor is arranged on the net, the key type cantilevers are started one by one, and each cantilever is provided with an independent control system, so that the stress of a single rotating shaft 4 can be controlled.
(4) Step 4: and (3) carrying out subsequent treatment on marine organisms such as jellyfish and the like in land areas, such as aquatic product sales of edible species, drying and dehydration treatment on non-edible species and the like.
(5) Step 5: when the monitoring equipment detects that the marine organisms are abundantly reduced to the non-disaster threshold value, the operation of the cleaning device is stopped after a certain time.
The sea area water depth suitable for the cleaning device provided by the invention is not more than 10m, and the working sea condition of the rotating shaft 4 of the cantilever is not suitable to exceed 6-level wind, namely more than 6-level wind can not be operated.
After the method for automatically cleaning the foreign matters floating along the breakwater is used, when the marine organism monitoring equipment detects that disaster-causing objects approach, the cantilever interception equipment is automatically started, the foreign matters floating along the breakwater in the sea area are collected and intercepted by the net bags, lifted by the cantilever and poured into the collecting tank 2 at the top of the breakwater 1, and then transported to the land area by the conveyor belt 6. So that the ocean foreign matters originally entering the water intake are collected to the land area in advance for treatment, and a large amount of ocean foreign matters are prevented from suddenly rushing into the water intake. And the cantilever and the plates of the collecting tank 2 are of a water permeable structure, so that the quality of transported substances can be reduced by draining, and further the mechanical stress is reduced. According to the invention, an automatic large-batch and continuous collection scheme is carried out on the drifting path before the disaster-causing object enters the water intake in advance, so that the effect of reducing the entrainment effect of the water intake is realized.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
Claims (8)
1. A method for automatically cleaning foreign matters floating along a dike in a coastal power plant, which is characterized by comprising the following steps:
acquiring path information of a disaster causing object entering a water intake;
determining the installation positions of a cleaning device and a marine organism monitoring device according to the path information, wherein the marine organism monitoring device is used for monitoring the enrichment degree of disaster-causing objects in a corresponding range, and the cleaning device is used for salvaging and conveying the disaster-causing objects in the corresponding range;
and starting the cleaning device when the marine organism monitoring equipment meets the triggering condition.
2. The method for automatically cleaning floating foreign matters on a dike in an coastal power plant according to claim 1, wherein the step of starting the cleaning device when the marine organism monitoring equipment meets the triggering condition comprises the step of starting the cleaning device to enter a standby state when the marine organism monitoring equipment judges that the enrichment degree of disaster-causing matters in the corresponding range reaches a preset threshold value.
3. A method of automatically cleaning floating foreign objects along a dike in an coastal power plant according to claim 2, further comprising:
acquiring disaster causing object characteristic information, wherein the disaster causing object characteristic information comprises disaster causing object types and corresponding size information in disaster causing seasons;
and determining structural design parameters of the cleaning device according to the disaster causing characteristic information, and monitoring the starting strategy of the equipment.
4. A method for automatically cleaning foreign matters floating along a dike in a coastal power plant according to claim 3, wherein the cleaning device comprises a blocking net structure, a cantilever structure and a conveying system, the blocking net structure and the cantilever structure are matched to realize salvage, lifting and overturning dumping of disaster-causing matters, and the disaster-causing matters are overturned and dumped into a collecting tank of the conveying system and conveyed to a land area by the conveying system.
5. The method for automatically cleaning floating foreign objects along a dike of an coastal power plant according to claim 4, wherein determining the installation positions of the cleaning device and the marine organism monitoring equipment according to the path information comprises: the marine organism monitoring equipment is arranged at the initial end of a path of a disaster-causing object entering the water intake, and the cleaning devices are arranged in a plurality of parallel and in a key type and are arranged outside the corresponding breakwater; the net blocking structure of each cleaning device is provided with an independent net force sensor, and when the detection value of the net force sensor reaches a first threshold value, the corresponding cantilever structure is started to salvage, lift and overturn and dump disaster-causing objects.
6. The method for automatically cleaning floating foreign matters on a dike in an coastal power plant according to claim 5, wherein the determining structural design parameters of the cleaning device according to the disaster-causing characteristic information comprises:
the water permeable holes are formed in the blocking net structure and the collecting groove of the conveying system, and the sizes of the water permeable holes are set according to disaster-causing object types in disaster-causing seasons and corresponding size information.
7. The method for automatically cleaning foreign matters floating along the dike of the coastal power plant according to claim 6, wherein the bottom of the collecting tank of the conveying system is provided with a pressure sensor for detecting the weight of the disaster-causing matters collected in the collecting tank of the conveying system, and when the detection value of the pressure sensor reaches a second threshold value, the corresponding conveying system is started to convey the disaster-causing matters to the land area.
8. A method for automatically cleaning floating foreign objects along a dike in a coastal power plant according to any one of claims 1 to 7, wherein the marine organism monitoring device is provided as a sonar and an optical detection device for monitoring the position and the density distribution of the disaster causing object.
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