Marine organism interception device for coastal power plant

Abstract

The application discloses a marine organism intercepting device for a coastal power plant, and the device is provided with an air curtain intercepting device at a water intake, compressed air is blown into a submarine pipeline with a nozzle through an air compressor, and an air curtain wall is formed after the compressed air is sprayed from the nozzle, umbrella parts of jellyfish near the water intake float after being inflated under the action of the air curtain wall, the jellyfish cannot sink after floating on the sea surface and can only drift in the flowing direction of the water surface, the jellyfish entering the water intake of a harbor basin can be greatly reduced, and a better intercepting effect of jellyfish and other plankton is achieved, the classification and grading of marine organisms and marine garbage can be realized through the multiple intercepting nets, the automatic salvage ship can timely salvage and transport the marine organisms, the intercepting net is prevented from gathering a large amount of marine organisms in a short period of time and being damaged, the impact of the intercepting net on the rotating filter screen at the rear end of the open channel, the basket conveyor can be matched with the automatic salvage ship to timely transport the salvaged garbage and marine organisms, and the normal operation of the system is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of marine organism interception devices for coastal power plants. Background Technology

[0002] The circulating water cooling system uses a direct-flow seawater cooling system, with seawater as the water source. The water intake is located underwater. Cooling water enters the open channel from the water intake, then flows into the forebay, after which a rotating filter and circulating water pumps are located. When a large number of marine organisms enter the open channel from the water intake, they directly impact the rotating filter, causing it to deform and become overloaded. This leads to the circulating water pumps tripping, resulting in the unit operating at reduced load, or even facing shutdown.

[0003] To prevent large numbers of marine organisms from directly impacting rotating filters, existing technologies often involve deploying multiple interception nets in open channel areas and assigning manual retrieval teams. For example, patent CN115404831A uses interception nets to intercept marine organisms. However, relying solely on a few interception nets and manual retrieval is insufficient to cope with large-scale jellyfish infestations. The prevention and control measures are too simplistic and cannot effectively reduce the risks posed by marine organisms. A more comprehensive marine organism interception solution and interception device are needed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a marine organism interception device for coastal power plants, which can effectively prevent marine organisms and marine debris from impacting the circulating water cooling system through multiple measures.

[0005] To achieve the above objectives, the present invention proposes a marine organism interception device for coastal power plants, comprising several air curtain interception devices installed at the water intake, characterized in that: the air curtain interception device includes an air curtain nozzle laid on the lower side in front of the water intake, an air source device for supplying air to the air curtain nozzle, and an isolation valve installed between the air source device and the air curtain nozzle; the air curtain nozzle is provided with several air curtain nozzles communicating with its interior, so that the gas ejected by the air curtain nozzles forms at least one air curtain wall in front of the water intake;

[0006] It also includes an open channel located next to the water intake, with at least two intercepting nets inside the open channel. The open channel is also equipped with a dredging device, which includes an automatic dredging vessel and a basket conveyor fixed next to the open channel. The basket conveyor is equipped with several garbage baskets. One end of the basket conveyor extends to the upper side of the open channel and cooperates with the automatic dredging vessel to transfer the garbage collected by the automatic dredging vessel into the garbage baskets. The basket conveyor then transports the garbage baskets to the next garbage disposal point.

[0007] Preferably, the open channel is equipped with three interception nets: a first planar interception net, a collection net, and a second planar interception net. The mesh size of the first planar interception net is larger than that of the collection net and is greater than or equal to that of the second planar interception net.

[0008] Preferably, the mesh side lengths of the first and second planar intercepting nets are both 50×50mm, and the mesh side length of the collecting net is 5×5mm.

[0009] Preferably, the salvage device further includes several floating platforms located at the interception net.

[0010] Preferably, the automatic salvage vessel includes a hull with a storage compartment inside. A salvage conveyor belt is located at the bow of the hull, with one end of the conveyor belt extending into the water and the other end extending into the storage compartment. An output conveyor belt is located at the stern of the hull, inclined in the same direction as the salvage conveyor belt. One end of the output conveyor belt is located in the storage compartment, and the other end extends out of the hull. A canopy is provided on the top of the storage compartment. A fixed guide rail is provided on the upper side of the open channel along its length, with both ends of the fixed guide rail fixed by brackets. A movement control mechanism is provided on the canopy for slidably connecting to the fixed guide rail and for controlling the reciprocating movement of the hull along the fixed guide rail.

[0011] Preferably, the motion control mechanism includes a trolley mounted on the fixed guide rail, a sliding motor inside the trolley for driving it to slide back and forth along the fixed guide rail, an inclined swing arm between the trolley and the roof, a first turntable horizontally mounted at the bottom of the trolley to cooperate with the swing arm, one end of the swing arm hinged to the first turntable, a first turntable drive motor between the trolley and the first turntable for driving the first turntable to rotate, a second turntable mounted on the roof to cooperate with the swing arm, the other end of the swing arm hinged to the second turntable, a second turntable drive motor between the second turntable and the roof for driving the second turntable to rotate, and a central control system connected to the sliding motor, the first turntable drive motor, and the second turntable drive motor within the hull.

[0012] Preferably, the open channel has an inverted trapezoidal cross-section, and an electronic water level gauge is installed in the open channel. The electronic water level gauge is connected to the central control system via data communication. The central control system receives the water level signal from the electronic water level gauge and adjusts the salvage trajectory of the automatic salvage vessel accordingly.

[0013] Preferably, the central control system is equipped with a Beidou positioning module and a wireless communication module.

[0014] Preferably, the basket conveyor includes several supports and a transport cableway disposed between the supports, with the garbage basket indirectly suspended on the transport cableway.

[0015] Preferably, the water intake is located 4-8 meters below sea level, and the air curtain nozzle is located 8-10 meters underwater in front of the water intake.

[0016] The present invention provides a beneficial effect for a marine organism interception device for coastal power plants: By installing an air curtain interception device at the water intake, compressed air is blown into a seabed pipe with nozzles using an air compressor. The compressed air exits from the nozzles, forming an air curtain. Jellyfish near the water intake float after their bells inflate under the action of the air curtain. Once afloat, the jellyfish cannot sink and can only drift in the direction of the water flow, significantly reducing the number of jellyfish entering the harbor intake. This achieves a good interception effect for jellyfish and other planktonic organisms. Multiple interception nets enable the classification, grading, interception, guidance, and collection of marine organisms and marine debris. Automatic dredging vessels can promptly dredge and transport the marine organisms, preventing the interception nets from accumulating in large quantities, causing damage, and impacting the rotating filter screen at the rear of the open channel. A basket transporter can cooperate with the automatic dredging vessel to promptly transport the collected debris and marine organisms, preventing the accumulation of debris and marine organisms from affecting the normal operation of the system.

[0017] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a marine organism interception device for coastal power plants according to the present invention.

[0019] Figure 2 yes Figure 1 A magnified structural diagram of part A in the middle.

[0020] Figure 3 yes Figure 1 A magnified structural diagram of section C.

[0021] Figure 4 yes Figure 1 Schematic diagram of the main view structure of section B.

[0022] Figure 5 yes Figure 4 Enlarged structural diagram of the automatic salvage vessel.

[0023] Figure 6 yes Figure 1 A magnified structural diagram of part D in the middle.

[0024] in:

[0025] 1-Air curtain nozzle; 2-Isolation valve; 3-Open channel; 4-Interception net; 5-Automatic salvage vessel; 6-Suspended basket transport machine; 7-Pulley; 8-Swing arm; 9-Floating platform; 10-Fixed guide rail; 11-Water intake; 41-First plane interception net; 42-Collection net; 43-Second plane interception net; 51-Hull; 52-Salvage conveyor belt; 53-Output conveyor belt; 54-Canopy; 61-Garbage basket; 62-Basket support; 63-Transport cableway; 71-Sliding motor; 101-Guide rail support; 541-Second turntable. Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0027] In the description of this invention, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0028] In the description of this invention, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0029] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Example

[0030] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This invention discloses a marine organism interception device for coastal power plants, comprising a water intake, an open channel 3 connected to the water intake, and an air curtain interception device located at the water intake 11. The air curtain interception device includes an air curtain nozzle 1 laid on the lower side in front of the water intake 11, an air source device for supplying air to the air curtain nozzle 1, and an isolation valve 2 located between the air source device and the air curtain nozzle 1. The water intake 11 is located 4-8 meters below sea level, and the air curtain nozzle 1 is located 8-10 meters underwater in front of the water intake 11. The air source device is an air compressor 12. The air curtain nozzle 1 is provided with several air curtain nozzles connected to its interior, so that the gas sprayed by the air curtain nozzles forms at least one air curtain wall in front of the water intake 11. The main target of the air curtain interception device is jellyfish, and it is designed according to the jellyfish's biological structure and swimming characteristics. Compressed air is blown into a seabed pipe with nozzles by an air compressor. The compressed air is ejected from the nozzles to form an air curtain. Jellyfish near the intake 11 float after their bells are inflated by the air curtain. Once floating on the sea surface, the jellyfish cannot sink and can only drift in the direction of the water flow. This greatly reduces the number of jellyfish entering the intake 11 of the harbor basin, achieving a good interception effect.

[0031] It also includes an open channel 3 located beside the water intake 11, with three intercepting nets 4 installed within the open channel 3. The open channel 3 is also equipped with a dredging device, which includes an automatic dredging vessel 5 and a basket transport machine 6 fixed beside the open channel 3. The basket transport machine 6 has several garbage baskets 61 mounted on it. One end of the basket transport machine 6 extends to the upper side of the open channel 3 and cooperates with the automatic dredging vessel 5 to transfer the dredged items from the vessel 5 into the garbage baskets 61, which are then transported by the basket transport machine 6 to the next garbage disposal point. Open channel 3 is connected to water intake 11. The interception net 4 inside open channel 3 is used for filtration, mainly intercepting larger floating garbage and marine organisms. The three interception nets 4 can achieve the classification, grading, interception, guidance and collection of marine organisms and marine garbage. The automatic salvage vessel 5 can salvage and transport marine organisms in a timely manner to prevent the interception net from accumulating a large number of marine organisms in a short period of time, causing the interception net to break and impact the rotating filter screen at the rear of the open channel. The basket transport machine 6 can cooperate with the automatic salvage vessel 5 to transport the salvaged garbage and marine organisms in a timely manner to avoid the accumulation of garbage and marine organisms affecting the normal operation of the system.

[0032] See Figure 1 The open channel 3 contains three interception nets 4: a first planar interception net 41, a collection net 42, and a second planar interception net 43. The mesh size of the first planar interception net 41 is larger than that of the collection net 42 and greater than or equal to that of the second planar interception net 43. The side length of the mesh size of the first planar interception net 41 and the second planar interception net 43 is 50×50mm, and the side length of the mesh size of the collection net 42 is 5×5mm. The first planar interception net 41 mainly intercepts larger floating debris and marine organisms; the collection net 42 mainly intercepts and collects debris and marine organisms with a diameter of 5mm or more; the second planar interception net 43 is used to prevent debris and larger marine organisms from entering the rotating filter screen behind it during net maintenance and replacement, thus protecting the nets and the fixed facilities behind the power plant.

[0033] See Figure 1 The collecting net 42 includes a main net body 421, on which a plurality of pockets 422 are provided in the same direction as the water flow.

[0034] Preferably, the interception net 4 is made of ultra-high molecular weight polyethylene material, which has a breaking strength far exceeding that of nylon, polyester, and polyethylene materials. At the same time, the net body is treated with wear-resistant and anti-microbial adhesion treatment, which greatly reduces the possibility of the interception net being damaged or marine organisms adhering to it.

[0035] See Figure 1 , Figure 2The salvage device also includes three floating platforms 9 located at the interception net 4. The floating platform 9 has a total size of 12x3x0.4m, a wall thickness of 10mm, and is approximately 36 square meters. It consists of multiple floating tubes and is made of high molecular weight polyethylene. It can float on the water surface, providing convenience for manual salvage. Example

[0036] See Figure 1 , Figure 4 , Figure 5 and Figure 6 Based on Embodiment 1, the automatic salvage vessel 5 includes a hull 51, a storage compartment inside the hull 51, a salvage conveyor belt 52 at the bow of the hull 51, the salvage conveyor belt 52 being inclined, with one end of the conveyor belt 52 extending into the water and the other end extending into the storage compartment, and an output conveyor belt 53 at the stern of the hull 51 being inclined in the same direction as the salvage conveyor belt 52, with one end of the output conveyor belt 53 located inside the storage compartment and the other end extending outside the hull 51, a canopy 54 on the top of the storage compartment, and a fixed guide rail 10 along the length of the open channel 3 on the upper side, with both ends of the fixed guide rail 10 fixed by guide rail brackets 101 respectively, and a movement control mechanism on the canopy 54 for slidably connecting with the fixed guide rail 10 and for controlling the reciprocating movement of the hull 51 along the fixed guide rail 10. In this embodiment, the movement of the automatic salvage vessel 5 is controlled by a fixed guide rail 10 in conjunction with a movement control mechanism. The automatic salvage vessel 5 does not require a propeller or other propulsion equipment to control its movement; instead, the equipment driving the automatic salvage vessel 5 is located on the shore. This avoids damage caused by debris or other items getting caught in the propeller or other propulsion equipment during operation, and also avoids disturbance of the water flow during operation, which could affect the salvage operation. During the movement of the automatic salvage vessel 5, the salvage conveyor belt 52 can transport the debris and aquatic organisms in the water to the storage bin. When the automatic salvage vessel 5 moves to the garbage basket 61, the output conveyor belt 53 is aligned with the garbage basket 61. The output conveyor belt 53 transports the debris and aquatic organisms from the storage bin into the garbage basket 61, where it is transported to the shore by the basket transport machine 6 and unloaded onto a transport vehicle on the shore. The transport vehicle then transports the debris to an off-site disposal facility.

[0037] See Figure 1 , Figure 4 , Figure 5 and Figure 6The movement control mechanism includes a trolley 7 mounted on the fixed guide rail 10. The trolley 7 contains a sliding motor 71 for driving it to reciprocate along the fixed guide rail 10. An inclined swing arm 8 is provided between the trolley 7 and the canopy 54. A first turntable 72, cooperating with the swing arm 8, is horizontally mounted at the bottom of the trolley 7. One end of the swing arm 8 is hinged to the first turntable 72. A first turntable drive motor for driving the first turntable 72 to rotate is provided between the trolley 7 and the first turntable 72. A second turntable 541, cooperating with the swing arm 8, is mounted on the canopy 54. The other end of the swing arm 8 is hinged to the second turntable 541. A second turntable drive motor for driving the second turntable 541 to rotate is provided between the second turntable 541 and the canopy 54. A central control system, controlled and connected to the sliding motor 71, the first turntable drive motor, and the second turntable drive motor, is located within the hull 51. In this embodiment, the automatic salvage vessel 5 is driven to move along the length of the open channel 3 by the cooperation of the trolley 7 and the fixed guide rail 10. The automatic salvage vessel 5 is controlled to move laterally by the cooperation of the first turntable 72, the second turntable 541 and the swing arm 8, thereby adjusting its lateral position in the open channel 3. The central control system can preset the running trajectory control program of the automatic salvage vessel 5 and automatically control the automatic salvage vessel 5 to salvage according to the trajectory, realizing automatic control and facilitating salvage in all directions in the open channel 3. The automatic salvage vessel 5 of this application does not need to be equipped with a propeller to control its movement. Instead, the equipment driving the automatic salvage vessel 5 is set on the shore, avoiding damage caused by garbage or other items being caught in the propeller during operation, and also avoiding disturbance of the water flow during operation of the propeller, which would affect the salvage. It also has stronger anti-interference ability, and the wind and waves have less impact on the running trajectory of the automatic salvage vessel 5.

[0038] See Figure 4 The open channel 3 has an inverted trapezoidal cross-section and is equipped with an electronic water level gauge 8. The electronic water level gauge 8 is connected to the central control system via data communication. The central control system receives the water level signal from the electronic water level gauge 8 and adjusts the retrieval trajectory of the automatic retrieval vessel 5 accordingly. The width of the horizontal plane of the inverted trapezoidal open channel varies at different water levels. This application uses the electronic water level gauge 8 to monitor the water level, and the central control system receives the water level signal to select a suitable operating trajectory for the automatic retrieval vessel 5, thereby improving the level of intelligence.

[0039] Preferably, the electronic water level gauge 8 is located next to the pontoon platform 9 to avoid affecting the operation of the automatic salvage vessel 5.

[0040] Preferably, the central control system is equipped with a Beidou positioning module and a wireless communication module.

[0041] See Figure 4The basket transport machine 6 includes several basket supports 62 and a transport cableway 63 located between the basket supports 62. The garbage basket 61 is indirectly suspended on the transport cableway 63.

[0042] Working process of this invention:

[0043] This invention relates to a marine organism interception device for coastal power plants. During operation, the gas source equipment supplies air to the air curtain nozzle 1, so that the gas sprayed from the air curtain nozzle forms at least one air curtain wall in front of the water intake 11. Jellyfish near the water intake 11 float after their umbrellas are inflated by the air curtain wall. After floating on the sea surface, the jellyfish cannot sink and can only drift in the direction of water flow. The number of jellyfish entering the water intake 11 in the harbor basin will be greatly reduced. Then, the water from the water intake 11 enters the open channel 3 and is intercepted and filtered by three interception nets 4. The automatic dredging vessel 5 automatically operates in the open channel 3 to collect and transport marine organisms and marine debris in a timely manner, preventing the interception nets from accumulating a large number of marine organisms in a short period of time, which could damage the interception nets and impact the rotating filter screen at the rear of the open channel. The basket transport machine 6 can cooperate with the automatic dredging vessel 5 to transport the collected garbage and marine organisms to the designated location in a timely manner. Manual dredging can be carried out by standing on the floating platform 9, in conjunction with the automatic dredging vessel.

[0044] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The internal components of the electric slide rail, cylinder, welding machine, electric telescopic rod and controller all adopt conventional models in the existing technology, and their internal structure belongs to the existing technology structure. Workers can complete the normal operation of them according to the existing technical manual. In addition, the circuit connection adopts the conventional connection method in the existing technology, and will not be described in detail here.

[0045] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of this invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this invention, or equivalent structural or procedural transformations made using the content of this specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this invention.

Claims

1. A marine organism interception device for coastal power plants, comprising a plurality of air curtain interception devices installed at the water intake, characterized in that: The air curtain interception device includes an air curtain nozzle laid on the lower side in front of the water intake, an air source device for supplying air to the air curtain nozzle, and an isolation valve between the air source device and the air curtain nozzle. The air curtain nozzle is provided with a plurality of air curtain nozzles communicating with its interior, so that the gas ejected by the air curtain nozzles forms at least one air curtain wall in front of the water intake. It also includes an open channel located next to the water intake, with at least two intercepting nets inside the open channel. The open channel is also equipped with a dredging device, which includes an automatic dredging vessel and a basket conveyor fixed next to the open channel. The basket conveyor is equipped with several garbage baskets. One end of the basket conveyor extends to the upper side of the open channel and cooperates with the automatic dredging vessel to transfer the garbage collected by the automatic dredging vessel into the garbage baskets. The basket conveyor then transports the garbage baskets to the next garbage disposal point. The automatic salvage vessel includes a hull, a storage compartment inside the hull, a salvage conveyor belt at the bow of the hull, the salvage conveyor belt being inclined with one end extending into the water away from the hull and the other end extending into the storage compartment, an output conveyor belt at the stern of the hull being inclined in the same direction as the salvage conveyor belt, one end of the output conveyor belt being located in the storage compartment and the other end extending out of the hull, a canopy on the top of the storage compartment, a fixed guide rail being provided on the upper side of the open channel along its length, the two ends of the fixed guide rail being fixed by guide rail brackets 1 respectively, and a movement control mechanism being provided on the canopy for slidably connecting with the fixed guide rail and for controlling the reciprocating movement of the hull along the fixed guide rail.

2. The marine organism interception device for coastal power plants as described in claim 1, characterized in that: The open channel is equipped with three interception nets: a first planar interception net, a collection net, and a second planar interception net. The mesh size of the first planar interception net is larger than that of the collection net and is greater than or equal to that of the second planar interception net.

3. The marine organism interception device for coastal power plants as described in claim 2, characterized in that: The first and second planar intercepting nets both have a mesh side length of 50×50mm, and the collecting net has a mesh side length of 5×5mm.

4. The marine organism interception device for coastal power plants as described in claim 1, characterized in that: The salvage device also includes several floating platforms located at the interception net.

5. The marine organism interception device for coastal power plants as described in claim 1, characterized in that: The motion control mechanism includes a trolley mounted on the fixed guide rail, a sliding motor inside the trolley for driving it to slide back and forth along the fixed guide rail, an inclined swing arm between the trolley and the roof, a first turntable horizontally mounted at the bottom of the trolley to cooperate with the swing arm, one end of the swing arm hinged to the first turntable, a first turntable drive motor between the trolley and the first turntable for driving the first turntable to rotate, a second turntable mounted on the roof to cooperate with the swing arm, the other end of the swing arm hinged to the second turntable, a second turntable drive motor between the second turntable and the roof for driving the second turntable to rotate, and a central control system connected to the sliding motor, the first turntable drive motor, and the second turntable drive motor within the hull.

6. The marine organism interception device for coastal power plants as described in claim 5, characterized in that: The open channel has an inverted trapezoidal cross-section and is equipped with an electronic water level gauge. The electronic water level gauge is connected to the central control system via data communication. The central control system receives the water level signal from the electronic water level gauge and adjusts the salvage trajectory of the automatic salvage vessel accordingly.

7. The marine organism interception device for coastal power plants as described in claim 5, characterized in that: The central control system is equipped with a Beidou positioning module and a wireless communication module.

8. The marine organism interception device for coastal power plants as described in claim 1, characterized in that: The suspended basket conveyor includes several suspended basket supports and a transport cableway located between the suspended basket supports, with the garbage basket indirectly suspended on the transport cableway.

9. The marine organism interception device for coastal power plants as described in claim 1, characterized in that: The water intake is located 4-8 meters below sea level, and the air curtain nozzle is located 8-10 meters underwater in front of the water intake.

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