Tidal energy two-way driven seawater uranium extraction device

Abstract

The invention discloses a tidal energy two-way driven seawater uranium extraction device, belongs to the technical field of seawater uranium extraction, and mainly aims to realize seawater flow driving by utilizing natural potential energy of tidal fluctuation and reduce energy consumption and operation cost in a device operation process. According to the main technical scheme, the device comprises a device body, an adsorption main pipe and a plurality of adsorption branch pipes; the device main body is arranged in a target sea area, a temporary storage pool is formed in the device main body, and the temporary storage pool is used for temporarily storing seawater introduced in the flood tide process or seawater introduced in the ebb tide process; the adsorption main pipe is communicated with a water passing opening formed in the device main body, a gate used for controlling the water passing opening to be opened and closed is arranged at the water passing opening, and the water passing opening is used for achieving two-way communication between the adsorption main pipe and external seawater; two ends of each adsorption branch pipe are respectively communicated with the adsorption main pipe and the temporary storage tank, and an adsorption module is arranged in each adsorption branch pipe and comprises an adsorption material for adsorbing uranium in seawater.

Description

Technical Field

[0001] This application belongs to the field of seawater uranium extraction technology, specifically relating to a tidal energy bidirectional driven seawater uranium extraction device. Background Technology

[0002] Existing seawater uranium extraction facilities are mostly powered by terrestrial power grids, which are energy-intensive, costly, and can only be deployed on land. Summary of the Invention

[0003] In view of this, this application provides a tidal energy bidirectional driven seawater uranium extraction device, the main purpose of which is to utilize the natural potential energy of tidal rise and fall to achieve seawater flow drive, thereby reducing energy consumption and operating costs during device operation.

[0004] To achieve the above objectives, this application mainly provides the following technical solutions: This application provides a tidal energy-driven, bidirectional seawater uranium extraction device, comprising: The device body is located in the target sea area, and a temporary storage pool is formed inside the device body. The temporary storage pool is used to temporarily store seawater introduced during high tide or low tide. The adsorption main tube is connected to a water inlet on the main body of the device. A gate is provided at the water inlet to control the opening and closing of the water inlet. The water inlet is used to enable bidirectional communication between the adsorption main tube and the external seawater. Multiple adsorption branch pipes are provided, with both ends of each adsorption branch pipe connected to the main adsorption pipe and the temporary storage tank, and each adsorption branch pipe is equipped with an adsorption module, the adsorption module including an adsorption material for adsorbing uranium elements in seawater.

[0005] Optionally, the tidal energy bidirectional driven seawater uranium extraction device further includes: The adsorption main pipe is connected to the water outlet through the water pipe, and multiple filters are provided on the water pipe.

[0006] Optionally, the plurality of filters include at least two groups divided according to the filtering objects, the filtering objects corresponding to different groups are different from each other, and each group includes at least one filter.

[0007] Optionally, when multiple filters are provided within a group corresponding to the same filtered object, the filtration levels of each filter are different.

[0008] Optionally, the horizontal elevation of the bottom surface of the inner wall of the water pipe, the main adsorption pipe and each of the adsorption branch pipes is the same as the horizontal elevation of the bottom surface of the water outlet when the gate is closed.

[0009] Optionally, one end of each adsorption branch tube is detachably connected to the adsorption main tube, and any two adsorption branch tubes can be selectively connected through a detachable structure.

[0010] Optionally, multiple adsorption branches are connected in parallel.

[0011] Optionally, multiple adsorption branches are connected in series.

[0012] Optionally, each of the adsorption branch pipes is equipped with a flow meter.

[0013] Optionally, the flow meter is located at the radial top of the corresponding adsorption branch pipe wall.

[0014] By employing the above technical solution, this application has at least the following beneficial effects: This application provides a tidal energy-driven bidirectional seawater uranium extraction device. By directly deploying the main body of the device in the target sea area, and with the bidirectional conduction structure of the inlet and the on / off control of the gate, the device utilizes the potential energy difference in water level between the external sea area and the temporary storage pool, which is naturally formed during high and low tides, to drive the seawater to achieve bidirectional forced flow between the external sea area and the device. Specifically: when the sea surface level in the external sea area is higher than the seawater level in the temporary storage pool, the gate is opened, and the external seawater flows into the adsorption main pipe through the inlet under the action of the potential energy difference, and then flows through each adsorption branch pipe in sequence before entering the temporary storage pool; when the seawater level in the temporary storage pool is higher than the sea surface level in the external sea area, the gate is opened, and the seawater in the temporary storage pool flows in the opposite direction through each adsorption branch pipe and the adsorption main pipe under the drive of the reverse potential energy difference, and is discharged into the external sea area through the inlet. Therefore, throughout the entire tidal process, seawater is forced to flow through the adsorption modules in each adsorption branch based on the naturally formed water level potential energy difference, without relying on the land power grid for power. This fundamentally reduces the energy consumption and operating costs of seawater uranium extraction, and the bidirectional water flow can fully interact with the adsorption material, thereby improving the adsorption efficiency of uranium. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a tidal energy bidirectional driven seawater uranium extraction device according to an optional embodiment of this application.

[0016] The reference numerals in the attached figures are as follows: 1. Adsorption main pipe; 2. Adsorption branch pipe; 3. Gate valve; 4. Adsorption module; 5. Water passage pipe; 6. Filter; 7. Flow meter. Detailed Implementation

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and 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 this application.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0020] The preferred embodiments of this application are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0021] See Figure 1 As shown in the embodiment of this application, a tidal energy bidirectional driven seawater uranium extraction device is provided, including a device body, an adsorption main pipe 1, and multiple adsorption branch pipes 2; the device body is set in the target sea area, and a temporary storage pool is formed inside the device body, which is used to temporarily store seawater introduced during high tide or low tide; the adsorption main pipe 1 is connected to a water inlet opened on the device body, and a gate 3 is provided at the water inlet for controlling the opening and closing of the water inlet, which is used to enable bidirectional communication between the adsorption main pipe 1 and the external seawater; both ends of each adsorption branch pipe 2 are connected to the adsorption main pipe 1 and the temporary storage pool, and each adsorption branch pipe 2 is provided with an adsorption module 4, which includes an adsorption material for adsorbing uranium elements in seawater.

[0022] By directly deploying the main body of the device in the target sea area, and with the bidirectional flow structure of the inlet and the on / off control of the gate 3, the potential energy difference in water level between the external sea area and the temporary storage tank, which is naturally formed during high and low tides, can drive seawater to achieve bidirectional forced flow between the external sea area and the device. Specifically: when the sea surface level in the external sea area is higher than the seawater level in the temporary storage tank, the gate 3 is opened, and the external seawater flows into the adsorption main pipe 1 through the inlet under the action of the potential energy difference, and then flows through each adsorption branch pipe 2 in sequence before entering the temporary storage tank; when the seawater level in the temporary storage tank is higher than the sea surface level in the external sea area, the gate 3 is opened, and the seawater in the temporary storage tank flows in the opposite direction through each adsorption branch pipe 2 and the adsorption main pipe 1 under the drive of the reverse potential energy difference, and is discharged to the external sea area through the inlet. Therefore, throughout the entire tidal process, seawater is forced to flow through the adsorption modules 4 in each adsorption branch pipe 2 based on the naturally formed water level potential energy difference, without relying on the land power grid for power. This fundamentally reduces the energy consumption and operating costs of seawater uranium extraction, and the bidirectional water flow can fully interact with the adsorption material, thereby improving the adsorption efficiency of uranium.

[0023] The main body of the device can be a box-type or frame-type structure adapted to the marine environment. It is directly deployed in the target sea area to provide an installation carrier for the temporary storage pool, adsorption main pipe 1, and adsorption branch pipe 2, while protecting the internal components from damage caused by the marine environment and ensuring the long-term stable operation of the device. Here, the target sea area refers to nearshore or offshore waters with stable tidal phenomena. It can be understood that when the main body of the device is deployed in nearshore waters, it can be fixed to the seabed or near-shore fixed foundation; when deployed in offshore waters, it can be integrated into a deep-sea floating platform or deep-sea mooring frame.

[0024] The temporary storage tank can be a pre-designed closed or semi-closed cavity inside the main body of the device, used to temporarily store seawater introduced during high or low tide. Here, the water storage capacity of the temporary storage tank works in conjunction with the on / off control of the gate 3 at the inlet to artificially create a two-way water level potential energy difference between the external sea area and the temporary storage tank inside the device, providing power for the two-way flow of seawater without the need for additional pumps or other power devices.

[0025] The water inlet refers to a through-hole located on the side wall or bottom of the main body of the device, serving as an interface for water flow between the device and the external sea area. Here, when the sea level in the external sea area is higher than the seawater level in the temporary storage tank, gate 3 is opened, allowing seawater to flow from the external sea area into the adsorption main pipe 1 through the water inlet; when the seawater level in the temporary storage tank is higher than the sea level in the external sea area, gate 3 is opened, allowing seawater to flow from the adsorption main pipe 1 out through the water inlet to the external sea area. It should be noted that gate 3 refers to an on / off control component located at the water inlet, which can be a mechanical gate 3, an electromagnetic gate 3, etc., capable of controlling the opening or closing of the water inlet; this application does not impose any limitations on this. In this embodiment, when the sea level in the external sea area is higher than the water level in the temporary storage tank, gate 3 is opened to allow seawater to flow in; when the water level in the temporary storage tank is higher than the water level in the external sea area, gate 3 is opened to allow seawater to discharge.

[0026] The adsorption main pipe 1 can be a cylindrical tubular structure or a polyhedral tubular structure, etc. One end of it is connected to the water outlet, and the other end is connected to multiple adsorption branch pipes 2, which are used to form a flow path between the water outlet, the adsorption main pipe 1, and the adsorption branch pipes 2.

[0027] The adsorption branch pipe 2 can also be a cylindrical tubular structure or a polyhedral tubular structure, with its two ends connected to the adsorption main pipe 1 and the temporary storage tank, respectively, to form a bidirectional flow path. When the sea surface level in the external sea area is higher than the seawater level in the temporary storage tank, the seawater flows along the direction of the external sea area, the inlet, the adsorption main pipe 1, the adsorption branch pipe 2, and the temporary storage tank; when the seawater level in the temporary storage tank is higher than the sea surface level in the external sea area, the seawater flows along the reverse path of the temporary storage tank, the adsorption branch pipe 2, the adsorption main pipe 1, the inlet, and the external sea area. It should be noted that each adsorption branch pipe 2 is fixedly equipped with an adsorption module 4, which consists of an adsorption support and an adsorption material with specific adsorption capacity for uranium, such as a amine oxime-based adsorbent or a graphene-based composite adsorbent. The adsorption support can be grid-like, honeycomb-like, or porous, and can be detachably snapped onto or embedded inside the adsorption branch tube 2. The adsorption material is uniformly loaded on the surface and pores of the adsorption support, forming a comprehensive adsorption contact interface. This ensures that the bidirectional seawater can flow through the adsorption material in a forced and uniform manner, avoiding short-circuiting of the water flow. During the seawater flow, the adsorption material captures uranium in the seawater through physical or chemical adsorption, completing the uranium extraction process from the seawater.

[0028] Specifically, in practical applications, the highest and lowest tide levels fluctuate dynamically each day and are differentiated from the real-time water level in the device's storage tank. This results in two bidirectional operating states for the device during high and low tides: During high tide, if the water level in the external sea area rises with the tide and is higher than the current water level in the storage tank, gate 3 opens, and seawater flows in the direction of the external sea area, the inlet, the main adsorption pipe 1, the adsorption branch pipe 2, and the storage tank, completing water storage; if the highest tide level of the day is still lower than the water level in the storage tank... When the existing water level or the temporary storage tank is at a high level, causing the water level in the temporary storage tank to be higher than the water level in the external sea area, gate 3 opens, and seawater flows in the reverse direction along the temporary storage tank, adsorption branch pipe 2, adsorption main pipe 1, inlet, and external sea area and is discharged. During the low tide phase, when the water level in the external sea area initially drops but is still higher than the water level in the temporary storage tank, gate 3 opens, and seawater continues to flow into the temporary storage tank in the forward direction. In the middle and later stages, when the water level in the external sea area drops to near the lowest tide level of the day and is lower than the water level in the temporary storage tank, gate 3 opens, and seawater is discharged in the reverse direction. The gate 3 closes when: in the forward water inflow scenario, it closes when the water level in the temporary storage tank rises to be equal to the current water level in the external sea area or reaches the preset high water level threshold; in the reverse drainage scenario, it closes when the water level in the temporary storage tank drops to be equal to the current water level in the external sea area or reaches the preset low water level threshold, in order to ensure the stability of the water level in the temporary storage tank and the formation of potential energy difference in subsequent tidal cycles. Here, the preset high water level threshold is the upper limit of the safe water level that the temporary storage tank can reach during the water storage process. It is a quantitative value preset to avoid overflow of the temporary storage tank, ensure the structural safety of the device, and reserve an effective potential energy difference for subsequent reverse drainage. The preset low water level threshold is the lower limit of the water level that the temporary storage tank can retain during the drainage process. It is a quantitative value preset to avoid excessive drainage of the temporary storage tank, ensure the rapid formation of a positive potential energy difference during subsequent high tide, and protect internal components such as the adsorption module 4. It should be noted that both the preset high water level threshold and the preset low water level threshold are quantitative values ​​preset based on the device design parameters and tidal environment characteristics, used to accurately control the water level of the temporary storage tank. This application does not limit these values.

[0029] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the tidal energy bidirectional driven seawater uranium extraction device also includes a water pipe 5. The adsorption main pipe 1 is connected to the water outlet through the water pipe 5, and multiple filters 6 are provided on the water pipe 5.

[0030] In this embodiment, the adsorption main pipe 1 and the water outlet are connected and adapted through the water pipe 5. At the same time, multiple filters 6 installed on the water pipe 5 can effectively intercept impurities such as plankton, silt, and suspended solids in the seawater, preventing impurities from entering the adsorption branch pipe 2 and clogging the pores of the adsorption module 4, contaminating the adsorption material, or affecting the effective contact of the adsorption interface. This not only protects the structural integrity of the adsorption module 4 and the adsorption performance of the adsorption material, but also ensures the smooth flow of bidirectional water under the drive of tidal potential energy, ensuring that the adsorption material can always form a sufficient and stable adsorption effect with the seawater, thereby maintaining the long-term stable operation of the device and the continuity of uranium element adsorption efficiency.

[0031] Multiple filters 6 are connected in series on the water pipe 5. The water pipe 5 can be a cylindrical tubular structure or a polyhedral tubular structure adapted to the water inlet and the adsorption main pipe 1, with its two ends connected to the water inlet and the adsorption main pipe 1 respectively.

[0032] Specifically, in practical applications, when the water level in the storage tank is higher than the water level in the external sea area, opening the inlet gate 3 allows seawater to flow along the reverse path of the storage tank, adsorption branch pipe 2, adsorption main pipe 1, inlet pipe 5, inlet, and external sea area. At this time, the reverse water flow will use the scouring force formed by the tidal potential energy difference to reverse flush the multiple filters 6 on the inlet pipe 5, promptly stripping and removing impurities such as plankton, silt, and suspended solids intercepted on the surface of the filters 6. Without the need for additional power devices, the flow capacity of the filters 6 can be restored without affecting the normal operation of the device, ensuring smooth bidirectional water flow and stable adsorption efficiency.

[0033] In the above embodiments, the multiple filters 6 include at least two groups divided according to the filtering objects, with different filtering objects corresponding to different groups, and each group including at least one filter 6. This achieves graded and precise interception of different types of impurities in seawater, enabling targeted filtering of impurities of different particle sizes or properties, such as plankton, silt, and suspended solids, avoiding the problem of incomplete interception of complex impurities by a single filtration stage. It also distributes the filtration load of each filter 6, reducing the risk of clogging caused by a single filter 6 intercepting multiple impurities simultaneously, and extending the overall service life of the filter 6. At the same time, graded filtration further improves the comprehensiveness and reliability of impurity interception, effectively preventing various impurities from entering the adsorption branch pipe 2 and damaging the adsorption module 4 or affecting the adsorption effect. It ensures smooth flow of bidirectional water under tidal potential energy, providing a stable guarantee for sufficient contact between the adsorption material and seawater, thereby enhancing the long-term operational stability of the device and the sustainability of uranium adsorption efficiency.

[0034] Here, multiple filters 6 are divided into two groups according to the filtering objects. One group of filters 6 near the water outlet is used to filter large particulate impurities in seawater, while the other group of filters 6 near the adsorption main pipe 1 is used to filter fine suspended solids, colloids and soluble organic matter in seawater.

[0035] Furthermore, when multiple filters 6 are provided within the same group corresponding to the same filtering object, the filtration levels of each filter 6 are different. It should be noted that by setting multiple filters 6 with different filtration levels within the same group corresponding to the same filtration object, fine-grained interception of the same type of impurities is achieved. For example, large particulate impurities can be intercepted in a stepwise manner by passing through filters 6 of different filtration levels in descending order of particle size. Fine suspended solids, colloids, and soluble organic matter can be filtered in a gradient manner according to molecular size or particle size precision. This avoids the problem of incomplete interception of impurities of different particle sizes within the same type of impurity by a single filtration level, and further disperses the filtration load within the group, reducing local blockage caused by concentrated interception of impurities of different levels within a specific range, and extending the service life of each filter 6 within the group. At the same time, the graded filtration within the group further improves the accuracy and reliability of impurity interception, effectively reducing the risk of impurities penetrating the filtration system and entering the adsorption branch pipe 2, ensuring the flow stability of the water pipe 5, and, together with the bidirectional water flow driven by tidal potential energy, continuously providing a clean and smooth flow environment for full contact between the adsorption material and seawater, thereby enhancing the long-term operational stability of the device and the sustainability of uranium adsorption efficiency. In this embodiment, each group of filters 6 is configured as two, and the filtration level gradually increases along the direction of the coastal water flow.

[0036] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, the horizontal elevation of the bottom surface of the inner wall of the water pipe 5, the main adsorption pipe 1 and each adsorption branch pipe 2 is the same as the horizontal elevation of the bottom surface of the water outlet when the gate 3 is closed.

[0037] In this embodiment, the horizontal elevation of the bottom surface of the inner wall of the water pipe 5, the main adsorption pipe 1, and each adsorption branch pipe 2 is set to be consistent with the horizontal elevation of the bottom surface of the water outlet when the gate 3 is closed. This eliminates the height difference between each water flow channel and the water outlet. On the one hand, it ensures that the seawater flowing in both directions during high and low tides flows smoothly along the flat bottom surface of the channel, avoiding water accumulation or additional water flow resistance due to local depressions, and ensuring the flow efficiency driven by tidal potential energy. On the other hand, it reduces the deposition of impurities in the seawater at the bottom of the channel. At the same time, the flushing effect of the reverse water flow helps to carry away the impurities more thoroughly, avoiding blockage of the channel or filter 6, and further ensuring sufficient contact between the adsorption module 4 and the seawater.

[0038] It should be noted that the horizontal elevation of the bottom surface of the inner wall of the water pipe 5, the main adsorption pipe 1, and each adsorption branch pipe 2 refers to the horizontal height of the lowest point of the inner wall of the water pipe 5, the main adsorption pipe 1, and each adsorption branch pipe 2. If this elevation is inconsistent with the lowest point of the gate 3 when the gate 3 is closed, the following problems will occur: If the horizontal elevation of the bottom surface of the inner wall of the pipe is higher than the lowest point of the gate 3, after the gate 3 is opened, the external seawater during high tide or the seawater in the temporary storage tank during low tide must first rise to the height of the pipe before entering the flow channel. This will not only cause a delay in the start of water flow and a decrease in flow velocity, but may also prevent effective flow from forming because the tidal water level has not reached the height of the pipe. If the horizontal elevation of the bottom surface of the inner wall of the pipe is lower than the lowest point of the gate 3, seawater will easily remain in the pipe after the gate 3 is closed. Over time, this will cause the adsorption material to become damp and age, and the inner wall of the pipe to corrode. Moreover, when the tide changes from high to low and the direction of seawater flow changes, the height difference will also cause eddies, which will hinder the smooth flow of seawater.

[0039] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, one end of each adsorption branch tube 2 is detachably connected to the adsorption main tube 1, and any two adsorption branch tubes 2 can be selectively connected through a detachable structure.

[0040] In this embodiment, by setting one end of each adsorption branch pipe 2 to be detachably connected to the adsorption main pipe 1, and allowing any two adsorption branch pipes 2 to be selectively connected through the detachable structure, the series and parallel relationship of multiple adsorption branch pipes 2 can be flexibly adjusted.

[0041] Specifically, in this embodiment, the adsorption main pipe 1 is a rectangular tubular structure, and one side wall is provided with multiple flange interfaces at intervals along the length direction. The number of flange interfaces is consistent with the number of adsorption branch pipes 2. Each adsorption branch pipe 2 has a flange plate integrally formed or fixedly assembled at both ends to be adapted to the above flange interfaces, and is equipped with a seawater corrosion resistant sealing gasket and bolt assembly. When multiple adsorption branch pipes 2 need to be connected in parallel, one end of each adsorption branch pipe 2 is aligned with the corresponding flange interface on the side wall of the adsorption main pipe 1 through a flange, sealed with a gasket and tightened with bolts. The other end is sealed and connected to the temporary storage tank, forming a multi-channel parallel seawater flow path. When multiple adsorption branch pipes 2 need to be connected in series, adjacent adsorption branch pipes 2 are aligned end to end through flanges at their respective ends, and tightened with a gasket and bolts, forming a single-channel extended seawater flow path. At this time, the adsorption branch pipe 2 group after series connection only needs to be sealed and connected to any flange interface of the adsorption main pipe 1 at one end, and sealed and connected to the temporary storage tank at the other end. The remaining flange interfaces on the adsorption main pipe 1 that are not connected to the adsorption branch pipe 2 group are sealed and fixed by flange blind plates that are compatible with the flange interfaces, ensuring that the unused flange interfaces are reliably sealed, avoiding seawater leakage or the formation of ineffective water flow channels, and ensuring that seawater can flow stably through the adsorption module 4 under the series path.

[0042] It should be noted that when multiple adsorption branch pipes 2 are connected in parallel, different types of adsorption materials can be filled into the adsorption modules 4 of each adsorption branch pipe 2, and all parallel branch pipes operate synchronously under the same tidal flow conditions, so as to realize parallel comparative testing of the adsorption performance of different adsorption materials. By detecting key parameters such as the uranium concentration of the seawater at the outlet of each parallel branch pipe, the uranium adsorption amount of the adsorption material, and the adsorption rate, the adsorption efficiency, selectivity and stability of different adsorption materials can be quickly and quantitatively evaluated, thereby guiding the selection optimization and engineering application of adsorption materials. There is no need to build an additional special testing device, which reduces the screening cost and cycle of adsorption materials. When multiple adsorption branches 2 are connected in series, the path length and effective contact time of seawater flowing through the adsorption material can be extended. Driven by tidal potential energy, the seawater sequentially flows through multiple series-connected adsorption modules 4, continuously and fully engaging in physical or chemical adsorption with the adsorption material. On one hand, this significantly improves the adsorption saturation and recovery rate of uranium in a unit volume of seawater, making it particularly suitable for deep extraction of low-concentration uranium from seawater, solving the problem of insufficient uranium adsorption caused by insufficient contact time in a single adsorption stage. On the other hand, multi-stage adsorption achieves gradient enrichment of uranium. The preceding adsorption module 4 preferentially captures most of the uranium in the seawater, while the subsequent adsorption module 4 further adsorbs the remaining uranium, reducing the saturation loss of the adsorption material in a single adsorption stage and extending the effective adsorption time within a single operating cycle. In this embodiment, see... Figure 1 As shown, multiple adsorption branch pipes 2 are arranged in parallel.

[0043] In some possible implementations disclosed in this application, see [link to relevant documentation]. Figure 1 As shown, each adsorption branch pipe 2 is equipped with a flow meter 7.

[0044] In this embodiment, by installing flow meters 7 on each adsorption branch pipe 2, the flow rate, velocity and flow stability of the bidirectional water flow driven by tidal energy in each adsorption branch pipe 2 can be monitored in real time and accurately, thereby enhancing the controllability, stability and long-term high efficiency of the device operation.

[0045] In the above embodiment, the flow meter 7 is located at the radial top of the corresponding adsorption branch pipe 2.

[0046] It should be noted that when the flow meter 7 is installed at the radial top of the adsorption branch pipe 2, it does not occupy the main water flow channel at the bottom and middle of the adsorption branch pipe 2, and does not change the internal flow cross section of the pipe. This avoids the local throttling or eddy current phenomenon that is easily formed when the flow meter 7 is installed in the necessary channel of the inlet and outlet water flow, significantly reduces water flow resistance, retains the water kinetic energy converted from tidal potential energy to the maximum extent, and ensures that seawater can flow smoothly through the adsorption material and fully contact the adsorption interface. At the same time, the top pipe wall is far away from the natural deposition area of ​​impurities such as silt and suspended solids in the seawater at the bottom of the branch pipe, which can effectively prevent impurities from covering and clogging the probe of the flow meter 7 or interfering with the detection accuracy of the sensor, and ensure that the flow rate and velocity data monitoring of bidirectional water flow during the high tide and low tide stages is always accurate and stable.

[0047] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0048] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above are merely preferred embodiments of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A tidal energy bidirectional driving seawater uranium extraction device, characterized in that, include: The device body is located in the target sea area, and a temporary storage pool is formed inside the device body. The temporary storage pool is used to temporarily store seawater introduced during high tide or low tide. The adsorption main tube is connected to a water inlet on the main body of the device. The water inlet is equipped with a gate for controlling the opening and closing of the water inlet. The water inlet is used to enable bidirectional communication between the adsorption main tube and the external seawater. Multiple adsorption branch pipes are provided, with both ends of each adsorption branch pipe connected to the main adsorption pipe and the temporary storage tank, and each adsorption branch pipe is equipped with an adsorption module, the adsorption module including an adsorption material for adsorbing uranium elements in seawater.

2. The tidal energy bidirectionally driven seawater uranium extraction device according to claim 1, characterized in that, Also includes: The adsorption main pipe is connected to the water outlet through the water pipe, and multiple filters are provided on the water pipe.

3. The tidal energy bidirectionally driven sea water uranium extraction device according to claim 2, characterized in that, The plurality of filters include at least two groups divided according to the filtering objects, the filtering objects corresponding to different groups are different, and each group includes at least one filter.

4. The tidal energy bidirectional driven seawater uranium extraction device according to claim 3, characterized in that, When multiple filters are provided within the same group corresponding to the same filtering object, the filtering levels of each filter are different.

5. The tidal energy bidirectional driven seawater uranium extraction device according to claim 2, characterized in that, The horizontal elevation of the bottom surface of the inner wall of the water passage pipe, the main adsorption pipe and each of the adsorption branch pipes is the same as the horizontal elevation of the bottom surface of the water passage when the gate is closed.

6. The tidal energy bidirectional driven seawater uranium extraction device according to claim 1, characterized in that, One end of each adsorption branch is detachably connected to the main adsorption tube, and any two adsorption branches can be selectively connected through a detachable structure.

7. The tidal energy bidirectional driven seawater uranium extraction device according to claim 6, characterized in that, Multiple adsorption branch pipes are connected in parallel.

8. The tidal energy bidirectional driven seawater uranium extraction device according to claim 6, characterized in that, Multiple adsorption branch pipes are connected in series.

9. The tidal energy bidirectional driven seawater uranium extraction device according to claim 1, characterized in that, Each of the adsorption branch pipes is equipped with a flow meter.

10. The tidal energy bidirectional driven seawater uranium extraction device according to claim 9, characterized in that, The flow meter is located at the radial top of the corresponding adsorption branch pipe wall.

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