A nuclear power plant seawater intake garbage treatment device

Abstract

The application discloses a nuclear power plant seawater inlet garbage treatment device, and belongs to the technical field of coastal nuclear power protection equipment. The nuclear power plant seawater inlet garbage treatment device comprises a fence and further comprises: a scraper is arranged on a sliding frame, and the scraper is attached to the side wall of the longitudinal fence; a hammering mechanism comprises a plurality of sliding sleeves and a transmission mechanism, the side wall of the sliding sleeve is attached to the side walls of two adjacent longitudinal fences, and a hammering block is slidably connected in each sliding sleeve; a driving mechanism is used for driving the sliding frame to move along the length direction of the longitudinal fence; when the sliding frame moves relative to the longitudinal fence, the transmission mechanism drives the plurality of hammering blocks to reciprocate along the length direction of the longitudinal fence, so that the plurality of hammering blocks knock the attachments on the side walls of the plurality of longitudinal fences and the plurality of weft fences. The nuclear power plant seawater inlet garbage treatment device can prevent hard and stubborn marine fouling organisms with strong adhesion capacity such as barnacles from adhering to the fence, so that garbage cleaning is not complete.

Description

Technical Field

[0001] This invention relates to the field of coastal nuclear power plant protection equipment technology, specifically to a waste treatment device for the seawater inlet of a nuclear power plant. Background Technology

[0002] As a clean and efficient core energy facility, the safe, continuous, and stable operation of coastal nuclear power plants is crucial for regional power supply security, grid load balance, and stable industrial production. During operation, seawater is the core cooling medium for the unit's heat exchange system. It needs to be continuously and in large quantities introduced into the plant area through the seawater intake to promptly remove the large amount of waste heat generated by the reactor and secondary loop systems. Therefore, the unobstructed flow of the seawater intake directly determines the operational stability of the cooling system and is a key foundation for the safe operation of the nuclear power plant. Due to the influence of near-shore shipping, near-shore aquaculture, and marine ecology, the current seawater is often mixed with floating garbage such as plastic bags, dead branches, and abandoned fishing nets. At the same time, it breeds a large amount of algae and plankton, and there are attached marine organisms such as barnacles and oysters. Various debris can easily flow into the intake with the water intake flow, causing potential blockages in the water intake system.

[0003] Currently, waste disposal facilities at the seawater intakes of coastal nuclear power plants generally employ a protective and cleaning model that combines barrier interception with a supporting collection mechanism. The barrier physically intercepts debris and marine life in the seawater, while the collection mechanism periodically cleans the barrier surface to maintain unobstructed water flow and ensure a stable water intake. This traditional technical solution is simple in structure, convenient to operate and maintain, adaptable to conventional clean sea conditions, and meets basic contamination interception and removal needs. It is currently the mainstream technology for waste disposal at nuclear power plant intakes.

[0004] Existing waste disposal facilities rely on conventional scraping and rinsing methods for collection, which can remove soft surface debris such as plastic scraps, seaweed, and flocculent plankton. However, hard marine fouling organisms such as barnacles, mussels, and oysters adhere to the fences with strong adhesion. After calcification, they become hard and tightly bonded, forming a dense and hard layer on the fence bars. Waste collection mechanisms that rely solely on scraping and rinsing are unable to effectively remove these hard and stubborn deposits. This results in incomplete cleaning of the fences, leading to reduced water intake flow and decreased heat exchange efficiency at nuclear power plants. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide a waste treatment device for the seawater intake of a nuclear power plant, which can effectively solve the problem of incomplete waste treatment caused by stubborn attachments such as barnacles adhering to the fence surface at the seawater intake for a long time.

[0006] This invention provides a waste treatment device for the seawater inlet of a nuclear power plant, including a fence installed at the seawater inlet of the nuclear power plant. The fence includes multiple longitudinal and longitudinal barriers, with the longitudinal and longitudinal barriers perpendicular to each other. The device also includes: A slide is installed at the seawater inlet. The slide is equipped with a scraper that fits against the side wall of the meridional barrier. The scraper is used to scrape off the deposits on the side wall of the meridional barrier. The hammering mechanism includes multiple sliding sleeves and a transmission mechanism. The multiple sliding sleeves are arranged on the carriage along the width direction of the radial grid. Each sliding sleeve is arranged between two adjacent radial grids. The side wall of the sliding sleeve is in contact with the side wall of the two adjacent radial grids. A hammering block is slidably connected in each sliding sleeve. The multiple hammering blocks are all connected to the transmission mechanism. The transmission mechanism is connected to the carriage. A drive mechanism is connected to the carriage. The drive mechanism is used to drive the carriage to move along the length direction of the warp barrier. When the carriage moves relative to the warp barrier, the transmission mechanism drives multiple hammer blocks to reciprocate along the length direction of the warp barrier, thereby driving the multiple hammer blocks to strike the attachments on the side walls of multiple warp barriers and multiple weft barriers.

[0007] Preferably, the transmission mechanism includes a first rack and a transmission shaft. The first rack is arranged along the length direction of the radial barrier. The transmission shaft is rotatably connected to the slide. The transmission shaft meshes with the first rack through a gear. The transmission shaft is provided with a plurality of incomplete gears. Each incomplete gear corresponds to a hammer block. Each hammer block is provided with a second rack. The incomplete gear meshes with the second rack on its corresponding hammer block. The hammer block is provided with an elastic mechanism. The elastic mechanism is used to apply an elastic force to the hammer block along the length direction of the radial barrier. When the incomplete gear drives the second rack to move, the elastic mechanism is squeezed and compressed by the hammer block.

[0008] Preferably, the elastic mechanism includes a slide rod and a spring. The slide sleeve has a groove along the longitudinal blocking length direction. The slide rod is disposed in the groove and is arranged along the length direction of the groove. The hammer block has a sliding hole. The hammer block is slidably connected to the slide rod through the sliding hole. The spring is disposed outside the slide rod and abuts against the hammer block. The spring is used to apply an elastic force to the hammer block along the longitudinal blocking length direction.

[0009] Preferably, the phases of the plurality of incomplete gears are different, and under the action of the plurality of incomplete gears, the firing time of each hammer block is different.

[0010] Preferably, the width of the hammer block along the radial width of the guard is A, and the width of the sliding sleeve along the radial width of the guard is B. The relationship between A and B satisfies B / 2≥A≥B / 3.

[0011] Preferably, the slide is provided with multiple rake teeth, which are arranged along the length of the slide. The multiple rake teeth are used to catch the attached material scraped or knocked off from multiple radial barriers. When the drive mechanism drives the slide to move along the length of the radial barriers, it can drive the multiple rake teeth to move upward above the water inlet. A waste transfer mechanism is also provided above the water inlet. The waste transfer mechanism is used to collect the attached material on the multiple rake teeth and transfer the collected attached material.

[0012] Preferably, a connecting seat is provided between the rake teeth and the slide, the connecting seat is fixedly connected to the slide, the connecting seat is provided with a rotating shaft, the axis of the rotating shaft is parallel to the axis of the transmission shaft, one end of the rake teeth is provided with a rotating shaft hole, the rake teeth are rotatably connected to the rotating shaft through the rotating shaft hole, the connecting seat is provided with a limiting baffle, the limiting baffle can abut against the tooth body of the rake teeth, under the limiting action of the limiting baffle, the included angle between the rake teeth and the part of the radial guard located above the rake teeth is less than 90 degrees.

[0013] Preferably, the drive mechanism includes two drive units, which are located on both sides of a plurality of radial blocks. Each drive unit includes a slide rail and a transmission screw. The slide rail and the transmission screw are both arranged along the length direction of the radial block. A threaded sleeve is slidably connected to the slide rail. The threaded sleeve is threadedly connected to the transmission screw, and the transmission screw is connected to a power device.

[0014] Preferably, the sliding sleeve and the carriage are detachably connected.

[0015] Preferably, both the rake teeth and the hammer block are made of corrosion-resistant materials.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention provides a waste treatment device for the seawater intake of a nuclear power plant. Seawater enters the seawater intake of the nuclear power plant through the meridional and latitudinal barriers of a fence. Floating waste and barnacles in the seawater are intercepted outside the intake by the meridional barriers. When the accumulation of deposits increases the water flow resistance of the fence, a cleaning operation is initiated. During cleaning, a drive mechanism connected to a long, narrow slide drives the slide to rise along the length of the meridional barriers. During the rise of the slide, a scraper, which is in contact with the side of the meridional barriers away from the intake, scrapes away soft deposits such as silt and loose algae, while simultaneously providing a surface for hammering cleaning. In the synchronously activated hammering mechanism, multiple hammer blocks arranged along the length of the slide and located in the gaps between adjacent meridional barriers are driven by a transmission mechanism to reciprocate at high speed, impacting the barnacles attached to the sidewalls of the meridional barriers at high frequency, breaking down their gelatinous layer, reducing adhesion, and then using a sliding sleeve to peel them off. Once the slide rises to the predetermined position where the rake teeth are fully exposed above the sea surface, the waste is centrally transferred by a scraper conveyor and other waste transfer mechanisms. This enables timely collection and treatment of waste at the seawater intake of the nuclear power plant, effectively solving the problem of incomplete waste treatment at the seawater intake caused by the long-term attachment of stubborn barnacles and other attachments to the fence surface. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the AA surface of the present invention; Figure 3 This is a schematic cross-sectional view of the BB surface of the present invention; Figure 4 This is a schematic cross-sectional view of the CC surface of the present invention; Figure 5 This is a schematic cross-sectional view of the DD surface of the present invention; Figure 6 This is a schematic diagram of the structure of the drive mechanism of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Fence; 101. Warp barrier; 102. Carriage; 103. Scraper; 104. Transmission mechanism; 105. Hammering block; 106. Slide groove; 107. Rake teeth; 108. Drive mechanism; 201. First rack; 202. Drive shaft; 203. Incomplete gear; 204. Second rack; 205. Elastic mechanism; 3. Sliding sleeve; 401. Sliding rod; 402. Spring; 501. Connecting seat; 502. Rotating shaft; 503. Limiting baffle; 601. Slide rail; 602. Transmission screw; 603. Screw sleeve; 604. Power unit; 7. Weft barrier. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1-6 The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] like Figures 1-6As shown, the present invention provides a waste treatment device for the seawater inlet of a nuclear power plant, comprising a fence 1, which is located at the seawater inlet of the nuclear power plant. The fence 1 includes multiple meridional barriers 101 and multiple latitudinal barriers 7, with the meridional barriers 101 and latitudinal barriers 7 perpendicular to each other. It also includes a slide 102, a hammering mechanism, and a drive mechanism 108. The slide 102 is located at the seawater inlet and is equipped with a scraper 103, which is in contact with the sidewall of the meridional barriers 101 and is used to scrape off the deposits on the sidewall of the meridional barriers 101. The hammering mechanism includes multiple sliding sleeves 3 and a transmission mechanism 104. The multiple sliding sleeves 3 are arranged on the slide 102 along the width direction of the meridional barriers 101, and each sliding sleeve 3 is equipped with... Placed between two adjacent meridional barriers 101, the sidewall of the sliding sleeve 3 is in contact with the sidewall of the two adjacent meridional barriers 101. A hammering block 105 is slidably connected inside each sliding sleeve 3. Multiple hammering blocks 105 are connected to a transmission mechanism 104, which is connected to a carriage 102. A drive mechanism 108 is connected to the carriage 102. The drive mechanism 108 is used to drive the carriage 102 to move along the length direction of the meridional barriers 101. When the carriage 102 moves relative to the meridional barriers 101, the transmission mechanism 104 drives multiple hammering blocks 105 to reciprocate along the length direction of the meridional barriers 101, thereby driving multiple hammering blocks 105 to strike the attachments on the sidewalls of multiple meridional barriers 101 and multiple latitudinal barriers 7.

[0021] The working principle of the above embodiments is briefly described below: The longitudinal baffles 101 of fence 1 are parallel to the vertical plane along their length, and together with the perpendicular latitudinal baffles 7, they form the core interception structure at the water inlet, effectively preventing floating debris and impurities carried by seawater from entering the seawater inlet of the nuclear power plant. When debris, silt, and marine organisms such as barnacles accumulate on the surface of fence 1 to a certain extent, it will significantly increase the resistance to the water flow and affect the efficiency of seawater intake for the nuclear power plant. At this time, a comprehensive cleaning operation is carried out on the surface of fence 1.

[0022] When the cleaning operation is started, the drive mechanism 108 is activated, which drives the slide 102 to move along the length of the warp barrier 101, so that the slide 102 moves up and down relative to the warp barrier 101 and the weft barrier 7, thereby providing a power basis for the operation of the entire cleaning structure.

[0023] As the carriage 102 moves upward, the scraper 103 pre-installed on the carriage 102 initiates the cleaning operation. The scraper 103 fits tightly against the side wall of the radial barrier 101 and rises synchronously with the carriage 102, continuously scraping the surface of the fence 1. It can directly scrape away soft attachments such as silt, loose algae, and surface biofilm attached to the surface of the fence 1. This pre-scraping operation can sweep away loose debris on the surface of the barrier, creating a clean working surface for the subsequent hammering operation. This ensures that the hammering structure can accurately act on the base of hard-attached organisms such as barnacles, improving the peeling effect of hard attachments.

[0024] While the scraper 103 is scraping, the hammering mechanism starts simultaneously for coordinated operation. As the carriage 102 rises, the transmission mechanism 104 drives each hammer block 105 to reciprocate at high speed along the length of the warp barrier 101, thereby driving the hammer blocks 105 to continuously and repeatedly strike the hard attachments such as barnacles attached to the side walls of adjacent warp barrier 101 and weft barrier 7. The high-frequency impact can destroy the adhesive layer between the barnacles and the surface of the barrier, weakening or even completely eliminating the adhesive force between them, causing the hard shell-like attachments to fall off the surface of the fence 1. At the same time, since the side wall of the sleeve 3 is attached to and set on the carriage 102, when the carriage 102 moves relative to the warp barrier 101, it can drive the sleeve 3 to move relative to the warp barrier 101, thereby scraping off the attachments remaining on the side walls of the warp barrier 101 and the weft barrier 7 after being struck. By employing a combined operation mode of scraping with scraper 103, hard hammering with hammer block 105, and scraping with sliding sleeve 3, a synergistic cleaning effect of "scraping and hammering at the same time" is achieved, thereby significantly improving the thoroughness of cleaning the attachments on the fence.

[0025] After the slide 102 has completely lifted the debris cleaned from the fence 1 to the preset position on the sea surface, the collected debris can be centrally transferred and cleaned using specialized waste transfer equipment such as a scraper conveyor, vacuum suction device, and robotic arm. After the waste is cleaned, the drive mechanism 108 reverses its rotation, driving the slide 102 to reset the scraper 103, sliding sleeve 3, and hammer block 105, returning them to their initial standby position, thus completing a single cleaning cycle.

[0026] The waste treatment device for seawater intake of nuclear power plants of the present invention can effectively intercept and efficiently collect floating waste at the seawater intake of nuclear power plants. Employing a combined scraping and tapping method, it can specifically remove silt, algae, barnacles, and other soft and hard deposits from the surface of the fence 1, solving the problem of incomplete cleaning by a single cleaning method. This effectively prevents stubborn deposits such as barnacles from adhering to the surface of the fence 1 for a long time, causing narrowing of the fence 1's pores and increased water flow filtration resistance, thus reducing the risk of blockage at the seawater intake.

[0027] Based on the above embodiments, in order to achieve stable reciprocating hammering action of the hammer block 105 without relying on additional power components, and to ensure that the hammering force is uniform and controllable.

[0028] like Figures 1-6 As shown, the transmission mechanism 104 includes a first rack 201 and a transmission shaft 202. The first rack 201 is arranged along the length direction of the radial guard 101. The transmission shaft 202 is rotatably connected to the slide 102. The transmission shaft 202 meshes with the first rack 201 through gears. The transmission shaft 202 is provided with a plurality of incomplete gears 203. Each incomplete gear 203 corresponds to a hammer block 105. Each hammer block 105 is provided with a second rack 204. The incomplete gear 203 meshes with the second rack 204 on its corresponding hammer block 105. The hammer block 105 is provided with an elastic mechanism 205. The elastic mechanism 205 is used to apply an elastic force along the length direction of the radial guard 101 to the hammer block 105. When the incomplete gear 203 drives the second rack 204 to move, the elastic mechanism 205 is squeezed and compressed by the hammer block 105.

[0029] During the lifting and lowering operation of the slide 102 with the drive mechanism 108, the transmission shaft 202 rotatably connected to the slide 102 can work synchronously with the overall operation of the equipment. Relying on the meshing of the gear and the first rack 201, the gear rolls on the first rack 201 under the drive of the slide 102, thereby converting the linear motion of the slide 102 into the rotational motion of the transmission shaft 202. When the transmission shaft 202 rotates, it drives multiple incomplete gears 203 on it to rotate synchronously. Through the meshing of the incomplete gears 203 with the second rack 204 on the corresponding hammer block 105, multiple hammer blocks 105 are driven to slide along the length direction of the radial barrier 101. During the sliding process, the hammer block 105 compresses the elastic mechanism 205 to store energy. When the incomplete gear 203 disengages from the second rack 204, the elastic mechanism 205 releases its elastic potential energy, causing the hammer block 105 to quickly return to its original position. This structure utilizes a rack and pinion meshing transmission combined with an incomplete gear 203 intermittent drive method to achieve stable reciprocating hammering action of the hammer block 105 without relying on additional power components. This ensures that the hammering force is uniform and controllable, greatly improves the peeling effect of hard attachments on the fence 1, and avoids problems such as increased resistance of the fence 1 and blockage of the water inlet caused by attachment residue.

[0030] As a preferred option, such as Figures 2-6As shown, the elastic mechanism 205 includes a slide rod 401 and a spring 402. The sliding sleeve 3 has a groove 106 extending along the length of the radial barrier 101. The slide rod 401 is located within the groove 106 and extends along its length. The hammer block 105 has a sliding hole, through which it is slidably connected to the slide rod 401. The spring 402 is located outside the slide rod 401 and abuts against the hammer block 105, applying an elastic force along the length of the radial barrier 101 to the hammer block 105. The sliding sleeve 3 has a groove 106 extending along the length of the radial barrier 101. The hammer block 105 is slidably fitted onto the slide rod 401 within the groove 106 via the sliding hole, allowing it to slide stably and linearly along the slide rod 401, effectively limiting the movement trajectory of the hammer block 105 and preventing deviation or jamming during operation. A spring 402, fitted onto the outside of the slide bar 401, abuts against the hammer block 105, forming a stable elastic reset structure. When the incomplete gear 203 drives the hammer block 105 to slide, the spring 402 is compressed and stores energy; when the gear disengages, the spring 402 releases its elastic force to push the hammer block 105 to reset quickly, thus cooperating with the intermittent gear transmission to achieve continuous reciprocating hammering. This structure improves the stability and smoothness of the hammering mechanism, ensures that it does not fail during long-term high-frequency hammering operations, ensures thorough cleaning of the deposits on the fence 1, and continuously maintains smooth water flow at the inlet.

[0031] As a preferred option, such as Figure 6 As shown, the multiple incomplete gears 203 have different phases, resulting in different firing times for each hammer block 105 under the action of the multiple incomplete gears 203. The differentiated phase arrangement of the multiple incomplete gears 203 ensures that the engagement and disengagement times of each incomplete gear 203 with its corresponding second rack 204 are staggered. During the continuous rotation of the drive shaft 202, the firing and resetting times of each hammer block 105 do not overlap, forming a staggered hammering operation mode. Compared to a synchronous hammering structure, this design avoids the problem of concentrated instantaneous force and excessive vibration on the entire equipment, reducing equipment operating losses. Simultaneously, it allows for alternating and uniform hammering cleaning of deposits in different areas of the fence 1, eliminating blind spots and further improving the overall cleaning effect. This effectively prevents localized blockages and uneven water flow resistance in the fence 1 caused by the accumulation of localized deposits.

[0032] As a preferred option, such as Figure 6As shown, the width of the hammering block 105 along the width direction of the radial barrier 101 is A, and the width of the sliding sleeve 3 along the width direction of the radial barrier 101 is B. The relationship between A and B satisfies B / 2≥A≥B / 3. Limiting the width A of the hammering block 105 and the width B of the sliding sleeve 3 to satisfy the dimensional ratio B / 2≥A≥B / 3 allows for precise matching of the working gap between the radial barriers 101. This dimensional design ensures that the hammering block 105 has sufficient sliding space within the sliding sleeve 3, avoiding movement jamming or jamming due to excessive size, while also preventing insufficient hammering coverage and dispersed striking force due to insufficient size of the hammering block 105. By optimizing the structural dimensional parameters, each hammering action is ensured to act precisely and efficiently on the deposits on the side wall of the barrier, maximizing the hammering cleaning efficiency, steadily improving the overall cleanliness of the fence 1, and ensuring the water inlet's flow efficiency.

[0033] As a preferred option, such as Figures 1-6 As shown, the slide 102 is equipped with multiple rake teeth 107 arranged along the length of the slide 102. These rake teeth 107 are used to catch and collect deposits scraped or knocked off from multiple radial barriers 101. When the drive mechanism 108 drives the slide 102 to move along the length of the radial barriers 101, it can move the multiple rake teeth 107 upwards towards the inlet. A waste transfer mechanism is also provided above the inlet, used to collect the deposits on the rake teeth 107 and transfer the collected deposits. During the lifting and lowering cleaning process of the slide 102, the multiple rake teeth 107 arranged along the length of the slide 102 move synchronously with the slide 102. After the scraper 103 and hammer block 105 complete the deposit removal operation, the rake teeth 107 can immediately catch and collect detached barnacle shells, algae clumps, suspended debris, and other garbage, preventing the detached debris from re-attaching or accumulating at the inlet with the seawater backflow. Once the slide 102 is raised to the predetermined position above the sea surface, the accompanying waste transfer mechanism can collect and transfer the debris accumulated on the rake teeth 107. This structure realizes an integrated operation of "stripping and collecting, collecting and transferring" of attached materials, eliminating secondary pollution and debris accumulation and blockage problems, and greatly improving the integrity and efficiency of waste cleaning at the water intake.

[0034] As a preferred option, such as Figures 1-6As shown, a connecting seat 501 is provided between the rake tooth 107 and the slide 102. The connecting seat 501 is fixedly connected to the slide 102. A rotating shaft 502 is provided on the connecting seat 501. The axial direction of the rotating shaft 502 is parallel to the axial direction of the transmission shaft 202. One end of the rake tooth 107 is provided with a rotating shaft hole. The rake tooth 107 is rotatably connected to the rotating shaft 502 through the rotating shaft hole. A limiting baffle 503 is provided on the connecting seat 501. The limiting baffle 503 can abut against the tooth body of the rake tooth 107. Under the limiting action of the limiting baffle 503, the included angle between the rake tooth 107 and the portion of the radial baffle 101 above the rake tooth 107 is less than 90 degrees. The rake tooth 107 is rotatably connected to the slide 102 through the connecting seat 501 and the rotating shaft 502, forming a limiting structure with the limiting baffle 503 on the connecting seat 501. When multiple rake teeth 107 rise to collect scraped debris, the angle between the rake teeth 107 and the upper radial barrier 101 is always less than 90 degrees under the limiting action of the limiting baffle 503, ensuring that the multiple rake teeth 107 are fully extended and thus guaranteeing the collection effect of the multiple rake teeth 107 on the scraped debris. When the slide 102 and rake teeth 107 are reset, the multiple rake teeth 107 can rotate axially relative to the rotating shaft 502 and retract, thus preventing floating garbage from getting stuck on the rake teeth 107 when they are reset, which would affect the normal operation of the rake teeth 107.

[0035] As a preferred option, such as Figure 2 and Figure 3 As shown, the drive mechanism 108 includes two drive units, which are located on both sides of a plurality of radial blocks 101. Each drive unit includes a slide rail 601 and a transmission screw 602. The slide rail 601 and the transmission screw 602 are both arranged along the length direction of the radial block 101. A threaded sleeve 603 is slidably connected to the slide rail 601, and the threaded sleeve 603 is threadedly connected to the transmission screw 602. The transmission screw 602 is connected to a power device 604. The drive mechanism 108 adopts a double-sided symmetrical drive structure. The slide rail 601 and the transmission screw 602 are respectively arranged on both sides of the radial blocks 101. The power device 604 drives the transmission screw 602 to rotate, which drives the threaded sleeve 603 to slide linearly along the slide rail 601, thereby smoothly pulling the slide 102 to rise and fall as a whole. The dual-side synchronous drive method ensures that the slide 102 is subjected to uniform force and runs smoothly without deviation or tilting during the lifting process. It also ensures that the scraper 103, hammer block 105, and rake teeth 107 are always in contact with the working surface of the fence 1, ensuring that the cleaning and collection of the entire fence 1 is even and in place. This avoids the problem of incomplete cleaning caused by the shaking of the slide 102 and continuously ensures that the water inlet is unobstructed.

[0036] As a preferred option, such as Figures 3-6As shown, the sliding sleeve 3 is detachably connected to the slide frame 102. The detachable connection between the sliding sleeve 3 and the slide frame 102 allows for the individual disassembly, replacement, or cleaning of the sliding sleeve 3 and its internal hammering structure when wear, dirt buildup, or component failures occur during long-term operation. This eliminates the need for complete disassembly of the equipment, facilitating routine maintenance, ensuring long-term stable operation, and enabling continuous and efficient cleaning of the fence 1.

[0037] As a preferred option, such as Figures 1-3 As shown, both the rake teeth 107 and the hammer block 105 are made of corrosion-resistant materials. The use of corrosion-resistant materials in both the rake teeth 107 and the hammer block 105 is suitable for the complex operating conditions of high-salt and high-corrosion seawater in coastal nuclear power plants, effectively resisting seawater corrosion and marine organism erosion, and preventing problems such as rust, deformation, and damage from long-term use of components.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. A waste disposal device for a seawater inlet of a nuclear power plant, comprising a fence installed at the seawater inlet of the nuclear power plant, the fence including multiple longitudinal bars and multiple latitudinal bars, the longitudinal bars being perpendicular to the latitudinal bars, characterized in that, Also includes: A slide is installed at the seawater inlet. The slide is equipped with a scraper that fits against the side wall of the meridional barrier. The scraper is used to scrape off the deposits on the side wall of the meridional barrier. The hammering mechanism includes multiple sliding sleeves and a transmission mechanism. The multiple sliding sleeves are arranged on the carriage along the width direction of the radial grid. Each sliding sleeve is arranged between two adjacent radial grids. The side wall of the sliding sleeve is in contact with the side wall of the two adjacent radial grids. A hammering block is slidably connected in each sliding sleeve. The multiple hammering blocks are all connected to the transmission mechanism. The transmission mechanism is connected to the carriage. A drive mechanism is connected to the carriage. The drive mechanism is used to drive the carriage to move along the length direction of the warp barrier. When the carriage moves relative to the warp barrier, the transmission mechanism drives multiple hammer blocks to reciprocate along the length direction of the warp barrier, thereby driving the multiple hammer blocks to strike the attachments on the side walls of multiple warp barriers and multiple weft barriers.

2. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, The transmission mechanism includes a first rack and a transmission shaft. The first rack is arranged along the length direction of the radial barrier. The transmission shaft is rotatably connected to the slide. The transmission shaft meshes with the first rack through a gear. The transmission shaft is provided with multiple incomplete gears. Each incomplete gear corresponds to a hammer block. Each hammer block is provided with a second rack. The incomplete gear meshes with the second rack on its corresponding hammer block. The hammer block is provided with an elastic mechanism. The elastic mechanism is used to apply an elastic force to the hammer block along the length direction of the radial barrier. When the incomplete gear drives the second rack to move, the elastic mechanism is squeezed and compressed by the hammer block.

3. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 2, characterized in that, The elastic mechanism includes a slide rod and a spring. The slide sleeve has a groove along the longitudinal blocking length direction. The slide rod is located in the groove and is arranged along the length direction of the groove. The hammer block has a sliding hole. The hammer block is slidably connected to the slide rod through the sliding hole. The spring is located outside the slide rod and abuts against the hammer block. The spring is used to apply an elastic force to the hammer block along the longitudinal blocking length direction.

4. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 2, characterized in that, The phases of the multiple incomplete gears are different, and under the action of the multiple incomplete gears, the firing time of each hammer block is different.

5. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, The width of the hammer block along the radial width of the guard is A, and the width of the sliding sleeve along the radial width of the guard is B. The relationship between A and B satisfies B / 2≥A≥B / 3.

6. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, The slide is equipped with multiple rake teeth arranged along the length of the slide. The rake teeth are used to catch the attached material scraped or knocked off from multiple radial barriers. When the drive mechanism drives the slide to move along the length of the radial barriers, it can drive the multiple rake teeth to move upwards towards the water inlet. A waste transfer mechanism is also provided above the water inlet. The waste transfer mechanism is used to collect the attached material on the multiple rake teeth and transfer the collected attached material.

7. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 6, characterized in that, A connecting seat is provided between the rake teeth and the slide, and the connecting seat is fixedly connected to the slide. A rotating shaft is provided on the connecting seat, and the axial direction of the rotating shaft is parallel to the axial direction of the transmission shaft. A rotating shaft hole is provided at one end of the rake teeth, and the rake teeth are rotatably connected to the rotating shaft through the rotating shaft hole. A limiting baffle is provided on the connecting seat, and the limiting baffle can abut against the tooth body of the rake teeth. Under the limiting action of the limiting baffle, the included angle between the rake teeth and the part of the radial guard located above the rake teeth is less than 90 degrees.

8. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, The drive mechanism includes two drive units, which are located on both sides of multiple radial blocks. Each drive unit includes a slide rail and a transmission screw. The slide rail and the transmission screw are both arranged along the length direction of the radial block. A threaded sleeve is slidably connected to the slide rail. The threaded sleeve is threadedly connected to the transmission screw, and the transmission screw is connected to a power device.

9. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, The sliding sleeve and the carriage are detachably connected.

10. The waste treatment device for the seawater inlet of a nuclear power plant as described in claim 1, characterized in that, Both the rake teeth and the hammer blocks are made of corrosion-resistant materials.

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