Device for cleaning substances in water

By designing an underwater debris removal device, which uses floating components and a suction pump system to collect and remove marine debris, the problem of shutdown caused by marine organism invasion in the nuclear power plant's cooling system has been solved, improving the safety and cleaning efficiency of the cooling system.

CN122039604APending Publication Date: 2026-05-15LIAONING HONGYANHE NUCLEAR POWER +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LIAONING HONGYANHE NUCLEAR POWER
Filing Date
2024-11-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Nuclear power plant cooling systems are prone to unit trips, reactor trips, and reduced power operation due to the intrusion of marine organisms or marine debris. Existing manual cleanup methods are ineffective during strong winds and waves, affecting the sustainability of the interception network.

Method used

Design a water substance cleaning device, including a float assembly, a float connecting frame, a filter screen assembly, and a suction pump. The float assembly floats on the water surface, the filter screen assembly collects substances in the water, and the suction pump extracts the substances from the filter screen, reducing the impact of substances in the water on the equipment.

Benefits of technology

It improves the safety of nuclear power plant cold source use, ensures the stable operation of the cold source system, avoids shutdowns and reactor stoppages caused by marine organism invasion, and ensures that cleanup efficiency is not affected by strong winds and waves.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an in-water substance cleaning device which comprises a floating body assembly, a floating body connecting frame, a filter screen set and a suction pump, and the floating body assembly floats on the water surface. The floating body connecting frame comprises an anchor chain and an anchor block, the anchor block is fixed to the underwater end, and the two opposite ends of the anchor chain are connected with the anchor block and the floating body assembly respectively. The filter screen set comprises a net bag and a supporting frame, the upstream face of the net bag is installed on the supporting frame, the net bag is opened through the supporting frame, and the net bag is used for collecting substances in water. The suction pump is connected with one end of the downstream surface of the net bag, is used for pumping out substances in the net bag, and is mounted on the floating body assembly. And the suction pump is positioned at the downstream of the filter screen group. According to the cleaning device for the substances in the water, the substances in the water are collected through the filter screen set and pumped out through the suction pump, the influence of the substances in the water on equipment installed on the side of the downstream face of the filter screen set is reduced, and therefore the use safety of a nuclear power cold source is improved through the cleaning device for the substances in the water.
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Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to a device for cleaning substances in water. Background Technology

[0002] Nuclear power plants typically use water as a cooling source. For nuclear power plants built on the coast, seawater is usually used as a cooling source to provide cooling water for steam turbines and nuclear island equipment.

[0003] However, incidents of reactor trips, reactor failures, and reduced power operation due to marine organisms or marine debris intrusion occur frequently. To ensure the safety of the cooling system, nuclear power plants have successively installed interception nets in their intake channels. Currently, manual removal of marine organisms requires the assistance of vessels, but these vessels are unusable during high winds and waves, making it impossible to remove marine organisms and affecting the sustainability of the front-end interception net's interception function.

[0004] Therefore, how to improve the safety of nuclear power cold source use is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a water substance cleaning device to improve the safety of nuclear power cold sources.

[0006] The water substance removal device provided in this application includes:

[0007] A floating assembly that floats on the water surface;

[0008] A floating body connecting frame, the floating body connecting frame including an anchor chain and an anchor block, the anchor block being fixed to the bottom end, and the opposite ends of the anchor chain being connected to the anchor block and the floating body assembly respectively;

[0009] A filter assembly, comprising a net bag and a support frame, wherein the water-facing side of the net bag is mounted on the support frame and the support frame extends the net bag, and the net bag is used to collect substances in the water;

[0010] A suction pump is connected to one end of the net bag on the back side and is used to extract material from the net bag. The suction pump is located downstream of the filter screen assembly and is installed on the float assembly.

[0011] Optionally, in the above-mentioned water substance cleaning device, the cross-sectional area of ​​the net bag gradually decreases along the direction perpendicular to the water flow;

[0012] And / or, the float assembly is provided with the float connecting frame on both the water-facing and back-facing sides, and the float connecting frame is symmetrically distributed on opposite sides of the float assembly.

[0013] Optionally, in the above-mentioned water substance cleaning device, at least two nets are provided on the same support frame in the horizontal direction, the number of nets is the same as the number of suction pumps, and each net is provided with an independently installed suction pump on the back side.

[0014] Optionally, in the above-mentioned water substance cleaning device, the bottom end of the water-facing surface of the net is located at the bottom of the water body, and the top end of the water-facing surface of the net is higher than or level with the water surface.

[0015] Optionally, the above-mentioned water substance cleaning device further includes:

[0016] A quick-connect device, comprising a magnetic ring and an electromagnetic coil ring capable of engaging with the magnetic ring;

[0017] A suction pipe is connected to the inlet of the suction pump. One of the magnetic ring and the electromagnetic coil ring is installed on the suction pipe, and the other is installed on one end of the back surface of the net.

[0018] A robotic arm is mounted on the float assembly and is used to pull the net bag to dock with the suction pipe.

[0019] Optionally, the above-mentioned water substance cleaning device further includes:

[0020] Sonar, the sonar being mounted on the float assembly;

[0021] And / or, a control device, wherein the suction pump is signal-connected to the control device, and the control device controls the suction pump to operate intermittently.

[0022] Optionally, in the above-mentioned underwater substance removal device, the underwater substance removal device is used in the ocean and further includes a ship anchor for fixing the ship. The ship anchor is installed on the floating body assembly, and the support frame is fixed to the seabed.

[0023] Optionally, the above-mentioned water substance cleaning device also includes an automated guided vehicle, which is disposed on the upper surface of the float assembly.

[0024] Optionally, in the above-mentioned water substance cleaning device, multiple floating body components are provided, each floating body component serving as a float, arranged sequentially in the horizontal direction, and adjacent floating body components can be detachably connected.

[0025] Optionally, in the above-mentioned water substance cleaning device, the floating body assembly includes:

[0026] A floating body, which is used to provide buoyancy;

[0027] A bracket is mounted on the upper surface of the float and connects adjacent floats;

[0028] A foot pedal is mounted on the upper surface of the bracket, and the upper surface of the foot pedal forms a maintenance walkway;

[0029] Guardrails are installed on the treadmill and located on opposite sides of the maintenance walkway.

[0030] In the above technical solution, the water substance cleaning device provided by the present invention includes a floating body assembly, a floating body connecting frame, a filter screen assembly, and a suction pump. The floating body assembly floats on the water surface. The floating body connecting frame includes an anchor chain and an anchor block. The anchor block is fixed to the bottom end, and the opposite ends of the anchor chain are respectively connected to the anchor block and the floating body assembly. The filter screen assembly includes a net bag and a support frame. The water-facing side of the net bag is installed on the support frame, and the support frame expands the net bag, which is used to collect substances in the water. The suction pump is connected to one end of the net bag on the back side and is used to extract substances from the net bag. The suction pump is installed on the floating body assembly. The suction pump is located downstream of the filter screen assembly. When the water substance cleaning device is in use, the net bag is used to collect substances in the water, and the suction pump extracts the substances from the net bag.

[0031] As can be seen from the above description, in the water substance cleaning device provided in this application, substances in the water are collected by a filter screen group and extracted by a suction pump, reducing the impact of water substances on the equipment installed on the back side of the filter screen group. Therefore, the water substance cleaning device provided in this application improves the safety of nuclear power cold source use. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0033] Figure 1 This is a top view of the water substance cleaning device provided in an embodiment of the present invention;

[0034] Figure 2 This is a side view of the water substance cleaning device provided in an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the layout of the floating body assembly provided in an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the structure of the filter assembly provided in an embodiment of the present invention;

[0037] Figure 5 This is a side view of the filter assembly provided in an embodiment of the present invention;

[0038] Figure 6 This is a schematic diagram of the layout of the floating body connecting frame provided in an embodiment of the present invention.

[0039] in Figure 1-6 In the middle: 1-Pedal, 2-Mechanical arm, 3-Automatic guided transport vehicle, 4-Suction pump, 5-Net bag, 6-Anchor block, 7-Guardrail, 8-Anchor chain, 9-Float, 10-Bracket, 11-Quick connection device, 12-Sonar, 13-Anchor, 14-Float assembly, 15-Support frame. Detailed Implementation

[0040] The core of this invention is to provide a water substance cleaning device to improve the safety of nuclear power cold sources.

[0041] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] Please refer to Figures 1 to 6 .

[0043] In one specific embodiment, the water substance cleaning device provided by this invention includes a float assembly 14, a float connecting frame, a filter screen assembly, and a suction pump 4. The float assembly 14 floats on the water surface. The float connecting frame includes an anchor chain 8 and an anchor block 6. The anchor block 6 is fixed to the bottom end, and the two ends of the anchor chain 8 are respectively connected to the anchor block 6 and the float assembly 14. Specifically, float connecting frames are provided on both opposite sides of the float assembly 14, so that the float assembly 14 forms a stable triangular structure in cross-section, maintaining the stability of the float. Specifically, the support frame 15 can be fixed to the seabed or lake bottom, or the support frame 15 can be installed on the float assembly 14 through connectors, in which case the support frame 15 and the float assembly 14 are relatively fixed.

[0044] Water substance removal devices can be used in oceans, lakes, and other similar environments.

[0045] To improve connection stability, the end of the anchor chain 8 connected to the anchor block 6 at the end of the float assembly 14 is positioned away from the float assembly 14.

[0046] Specifically, a single fixing point of the float assembly 14 can be provided with two float connecting frames arranged in a V-shape.

[0047] In a specific configuration, the anchor block 6 can be connected to the anchor chain 8 using a shackle and thrown to the seabed to provide anchoring force for the floating body assembly 14.

[0048] Specifically, multiple floating body components 14 are provided, each floating body component 14 serving as a float, arranged sequentially along the horizontal direction. Preferably, adjacent floating body components 14 are detachably connected, and the required number of floats is determined according to the desired enclosure location. The floating body components 14 adopt a modular design, enabling rapid installation and replacement of individual modules.

[0049] The filter assembly includes a net bag 5 and a support frame 15. The water-facing side of the net bag 5 is mounted on the support frame 15, and the support frame 15 holds the net bag 5 open. The net bag 5 is used to collect substances in the water. Specifically, one net bag 5 or at least two net bags 5 can be installed on each support frame 15.

[0050] Specifically, the net 5 can collect marine life or other impurities in the harbor basin. Specifically, the bottom end of the support frame 15 can be fixed to the seabed, for example, the bottom end of the support frame 15 can be fixed to the seabed.

[0051] The suction pump 4 is connected to one end of the net bag 5 on the back side of the water surface and is used to extract the material inside the net bag 5. The suction pump 4 is installed on the float assembly 14.

[0052] When the water substance cleaning device is in use, the net bag 5 is used to collect substances in the water, and the suction pump 4 extracts the substances from the net bag 5. In a specific setup, the suction pump 4 is connected to the net bag 5 through a suction pipe to clean marine organisms from the net bag 5 and transport them to a drain basket.

[0053] As can be seen from the above description, in the water substance cleaning device provided in the specific embodiment of this application, the substances in the water are collected by the filter screen group and extracted by the suction pump 4, which reduces the impact of the substances in the water on the equipment installed on the back side of the filter screen group. Therefore, the water substance cleaning device provided in this application improves the safety of nuclear power cold source.

[0054] like Figure 1 , Figure 4 and Figure 5 As shown, to facilitate the flow of material from the net bag 5 to the backwater side, preferably, the cross-sectional area of ​​the net bag 5 gradually decreases along the direction perpendicular to the water flow. Specifically, the net bag 5 can be cone-shaped along the water flow direction, and the material outlet on the backwater side of the net bag 5 can be located below the water surface, so that organisms in the net bag 5 can be extracted by the suction pump 4.

[0055] In one specific embodiment, at least two net bags 5 are provided on the same support frame 15 along the horizontal direction. Specifically, the net bags can be arranged sequentially along the direction perpendicular to the water flow. The number of net bags 5 is the same as the number of suction pumps 4, and each net bag 5 has an independently installed suction pump 4 on its back side.

[0056] To facilitate the timely extraction of materials from the container, preferably, the bottom of the water-facing side of the net 5 is positioned at the bottom of the water body, while the top of the water-facing side of the net 5 is higher than or level with the water surface. This arrangement ensures that materials passing through the net 5, regardless of whether they are at a higher or lower position, will pass through the net 5.

[0057] In one specific embodiment, the water substance cleaning device further includes a quick-connect device 11, a suction pipe, and a robotic arm 2. Specifically, the quick-connect device 11 can be a buckle, with one male and one female buckle installed on the suction pipe and the other on one end of the net bag 5 on the back side of the water. By providing the quick-connect device 11, it is convenient to connect the net bag 5 to the suction pipe and the suction pump 4.

[0058] In another specific embodiment, the quick-connect device 11 includes a magnetic ring and an electromagnetic coil ring capable of engaging with the magnetic ring. The suction pipe is connected to the inlet of the suction pump 4. One of the magnetic ring and the electromagnetic coil ring is installed on the suction pipe, and the other is installed on one end of the net bag 5 on the back side of the water. When the electromagnetic coil ring is energized, the magnetic ring and the electromagnetic coil ring engage. The engagement method enables quick docking between the net bag 5 and the suction pipe, further improving the connection speed.

[0059] Robotic arm 2 is mounted on the float assembly 14 and is used to pull the net 5 to connect with the suction pipe. Specifically, the cantilever of robotic arm 2 can extend 3m and is fixed to the float assembly 14 near the net 5 for pulling the net 5 to connect with the suction pipe. Both the net 5 and the suction pipe are mounted on robotic arm 2, achieving a relatively fixed position for both. Robotic arm 2 can be a steel structure to reduce deformation during the pulling process of the net 5.

[0060] In practical use, the quick-connect device 11 is used to connect the net bag 5 and the suction pipe. A strong magnetic ring and an electromagnetic coil ring are used to attract each other to achieve a quick and reliable docking. The quick-connect device 11 is used to connect the net bag 5 and the suction pipe. The robotic arm 2 pulls the net bag 5 to dock with the suction pipe. The suction pipe can be automatically installed and removed, and no personnel are required in the event of strong winds and waves.

[0061] In one specific embodiment, the water substance removal device further includes a sonar 12, which is installed on the float assembly 14. One or more sonars can be installed. By installing the sonar 12, the activity of marine organisms can be observed, and early warning of marine organism invasions can be provided.

[0062] In one specific embodiment, the water substance cleaning device also includes a control device. The suction pump 4 is signal-connected to the control device, which controls the suction pump 4 to operate intermittently. Considering that the net 5 has a certain capacity, it can collect some substances and then pump them in at once, avoiding continuous operation of the suction pump 4. For example, the suction pump 4 can pump four times a day, each time for ten minutes.

[0063] When multiple suction pumps 4 are installed, the control device controls each suction pump 4 to work individually via signal lines, so as to avoid the other suction pumps 4 being unable to work when one suction pump 4 is under maintenance.

[0064] In one specific embodiment, the waterborne material removal device further includes an anchor 13 for securing a vessel, which is mounted on the float assembly 14. The anchor 13 serves as a temporary mooring point for the vessel. The vessel is secured to the anchor 13 by providing this temporary mooring point. Specifically, a crane arm can also be provided to lift materials from the vessel onto the float assembly 14.

[0065] In one specific embodiment, the water substance cleaning device further includes an automated guided vehicle (AGV) 3, which is disposed on the upper surface of the float assembly 14. The AGV 3 uses electromagnetic guidance to transport the faulty suction pump 4 and the drain basket to the maintenance point along a preset route, thereby improving the automation level of the water substance cleaning device.

[0066] Based on the above solutions, the float assembly 14 includes a float 9, which is used to provide buoyancy; the float 9 can be a buoyancy tube. The buoyancy tube provides buoyancy to the float assembly 14, and the buoyancy tube can be made of HDPE (high-density polyethylene) pipe.

[0067] The float assembly 14 also includes a bracket 10 and a footplate 1. The bracket 10 is mounted on the upper surface of the float 9 and connects adjacent floats 9. The bracket 10 connects the buoyancy tubes in series to form a whole. The bracket 10 is specifically made of 2205 duplex stainless steel to extend its service life.

[0068] Step 1 is mounted on the upper surface of bracket 10, forming a maintenance walkway. Step 1 is used for personnel to walk on, and is specifically fixed to bracket 10 with fasteners, such as 2205 duplex stainless steel bolts. By setting up step 1, it is convenient for personnel to perform maintenance work.

[0069] To improve operational safety, the floating assembly 14 preferably also includes guardrails 7, which are installed on the footboard 1 and located on opposite sides of the maintenance walkway. Specifically, the guardrails 7 include a base, square tube posts, guardrail 7 tubing, and caps. The square tube posts are installed on the floating assembly 14 via the base, and adjacent square tube posts are connected via the guardrail 7 tubing. The top opening of the square tube posts is sealed with caps to reduce moisture and corrosion inside the posts. The guardrails 7 ensure personnel safety.

[0070] The waterborne substance cleaning device provided in this application can clean marine organisms in the net bag 5 around the clock using a suction pump 4. This can prevent the invasion of jellyfish and other marine organisms, reduce unit shutdowns and reactor stoppages due to cold source problems, and thus ensure the safety of the cold source system, providing technical support for the safety of nuclear power cold sources. Simultaneously, a multi-functional wind and wave resistant floating raft for biological suction is arranged downstream of the net bag 5, and the suction pump 4 is installed on the raft, enabling round-the-clock cleaning of marine organisms and ensuring the safety of the cold source system.

[0071] At the same time, since it does not require the cooperation of surface vessels and is not affected by strong winds and waves, the cleanup efficiency is high.

[0072] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0073] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for cleaning substances from water, characterized in that, include: A floating body assembly (14) floats on the water surface; A floating body connecting frame, the floating body connecting frame includes an anchor chain (8) and an anchor block (6), the anchor block (6) is fixed to the bottom end, and the two ends of the anchor chain (8) are respectively connected to the anchor block (6) and the floating body assembly (14); A filter assembly, comprising a net bag (5) and a support frame (15), wherein the water-facing side of the net bag (5) is mounted on the support frame (15) and the support frame (15) supports the net bag (5) to collect substances in the water; A suction pump (4) is connected to one end of the back surface of the net (5) and is used to extract the material in the net (5). The suction pump (4) is located downstream of the filter screen assembly and is installed on the float assembly (14).

2. The water substance cleaning device according to claim 1, characterized in that, The cross-sectional area of ​​the net (5) gradually decreases along the direction perpendicular to the water flow; And / or, the float assembly (14) is provided with the float connecting frame on both the water-facing and back-facing sides, and the float connecting frame is symmetrically distributed on the opposite sides of the float assembly (14).

3. The water substance cleaning device according to claim 1, characterized in that, At least two net bags (5) are provided on the same support frame (15) along the horizontal direction. The number of net bags (5) is the same as the number of suction pumps (4). Each net bag (5) has an independently installed suction pump (4) on its back side.

4. The water substance cleaning device according to claim 1, characterized in that, The bottom end of the water-facing side of the net (5) is set at the bottom of the water body, and the top end of the water-facing side of the net (5) is higher than or level with the water surface.

5. The water substance cleaning device according to claim 1, characterized in that, Also includes: A quick-connect device (11) includes a magnetic ring and an electromagnetic coil ring capable of engaging with the magnetic ring; The suction pipe is connected to the inlet of the suction pump (4). One of the magnetic ring and the electromagnetic coil ring is installed on the suction pipe, and the other is installed on one end of the back surface of the net (5). A robotic arm (2) is mounted on the float assembly (14) and is used to pull the net (5) to dock with the suction pipe.

6. The water substance cleaning device according to claim 1, characterized in that, Also includes: Sonar (12), said sonar (12) is mounted on the float assembly (14); And / or, a control device, the suction pump (4) is signal-connected to the control device, the control device controls the suction pump (4) to work intermittently.

7. The water substance cleaning device according to claim 1, characterized in that, The underwater substance removal device is used in the ocean and also includes an anchor (13) for securing the vessel. The anchor (13) is installed on the floating body assembly (14) and the support frame (15) is fixed to the seabed.

8. The water substance cleaning device according to claim 1, characterized in that, It also includes an automated guided vehicle (3), which is disposed on the upper surface of the float assembly (14).

9. The water substance cleaning device according to claim 1, characterized in that, Multiple float assemblies (14) are provided, each float assembly (14) serves as a float, and they are arranged sequentially in the horizontal direction. Adjacent float assemblies (14) can be detachably connected.

10. The water substance cleaning device according to claim 1, characterized in that, The floating body assembly (14) includes: A float (9) is used to provide buoyancy; A bracket (10) is mounted on the upper surface of the float (9) and the bracket (10) connects to adjacent floats (9); A footboard (1) is mounted on the upper surface of the bracket (10), and the upper surface of the footboard (1) forms a maintenance walkway; Guardrail (7) is installed on the tread (1) and located on opposite sides of the maintenance walkway.