A reverse osmosis seawater desalination water mineralization device

Abstract

This invention provides a reverse osmosis seawater desalination water mineralization device, comprising a first frame and a second frame. The upper end of the second frame is equipped with an influent pretreatment unit and a mineralization core unit. The upper end of the first frame is equipped with a water quality monitoring and control unit, a cleaning and maintenance unit, and an energy recovery unit. The influent pretreatment unit includes multiple filters with different pore sizes arranged in a hierarchical manner and an ion exchange resin column made of composite ion exchange resin material. This invention ensures thorough mixing of desalinated seawater and minerals, resulting in stable mineralized water quality that meets diverse needs, solving the problems of difficult-to-control mineral addition and large water quality fluctuations in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of seawater desalination technology, and in particular to a reverse osmosis seawater desalination water mineralization device. Background Technology

[0002] Given the severe global shortage of freshwater resources, reverse osmosis seawater desalination technology is increasingly highlighting its crucial role as a vital means of obtaining freshwater. However, while reverse osmosis successfully removes most of the salt and impurities from seawater, it also results in the significant loss of beneficial minerals, leading to a bland taste and potentially adverse health effects with long-term consumption. Current seawater desalination methods have numerous drawbacks. For example, adding mineral salt solutions makes it difficult to precisely control the amount of minerals added, easily causing unstable fluctuations in water quality. Using mineralized filter media often results in clogging, requiring frequent replacements, significantly increasing operating costs and maintenance complexity. Therefore, developing a reverse osmosis seawater desalination equipment with a sophisticated design, multiple efficient functional units, precise control over mineralization levels, stable and reliable operation, and easy maintenance has become a critical issue urgently needing to be addressed in this field. Utility Model Content

[0003] To address the above problems, this utility model provides a reverse osmosis seawater desalination water mineralization device.

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A reverse osmosis seawater desalination water mineralization device includes a first frame and a second frame. The upper end of the second frame is equipped with an influent pretreatment unit and a mineralization core unit. The upper end of the first frame is equipped with a water quality monitoring and control unit, a cleaning and maintenance unit, and an energy recovery unit. The influent pretreatment unit includes multiple filters with different pore sizes arranged in a hierarchical manner and an ion exchange resin column using composite ion exchange resin material. The mineralization core unit consists of a mineralization chamber made of special alloy material and internally equipped with multiple layers of staggered partitions, a mineral addition system equipped with multiple independent mineral storage tanks and a digitally controlled high-precision metering pump, and a mixing and stirring system driven by a variable frequency speed control motor. The water quality monitoring and control unit is equipped with a multi-parameter integrated water quality sensor and a control system using artificial intelligence algorithms and fuzzy control technology. The cleaning and maintenance unit includes an automatic backwashing device equipped with a high-pressure water pump and an intelligent valve control system, and an intelligent chemical cleaning device with a built-in intelligent fouling analysis system. The energy recovery unit uses a turbine power generation technology or a hydraulic energy conversion technology for energy recovery.

[0006] Preferably, the filter screens are arranged in layers, with large-pore filter screens first intercepting larger particulate impurities, and small-pore filter screens further filtering fine particles.

[0007] Preferably, the ion exchange resin column has a highly selective adsorption and exchange capacity for harmful ions in seawater, and can adjust the pH and ionic strength of the influent.

[0008] Preferably, the internal partitions of the mineralization chamber are arranged in an alternating pattern to form a tortuous water flow path, thereby extending the residence time of the desalinated seawater.

[0009] Preferably, the mineral storage tanks store calcium salts, magnesium salts, and potassium salts respectively, and the metering pump can precisely regulate the flow rate of the mineral salt solution with the error controlled within a very small range.

[0010] Preferably, the shape, angle, and distribution of the mixing blades in the mixing system are optimized to form a uniform and efficient mixing flow field.

[0011] Preferably, the water quality sensor can simultaneously and accurately monitor the mineral content, pH, conductivity, and redox potential of both the influent and effluent in real time.

[0012] Preferably, the control system can perform in-depth comparative analysis of real-time detection data with preset mineralization target values, and quickly adjust the working parameters of the mineral addition system and the mixing and stirring system.

[0013] Preferably, the backwashing device can be automatically activated at set time intervals and inject high-pressure water flow in the reverse direction to flush the inside of the equipment.

[0014] Preferably, the intelligent chemical cleaning device can automatically identify the type of dirt based on the equipment operating status, water quality test data, and backwashing effect, and accurately adjust the chemical cleaning agent. The energy recovery device can convert the kinetic energy of the desalinated seawater outflow into mechanical energy or electrical energy, and rationally allocate it through the energy management system to assist the operation of the internal components of the equipment.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The high-precision metering pump of the mineral addition system, combined with advanced digital control technology, can accurately adjust the amount of minerals added according to the control system instructions with minimal error. At the same time, the optimized mixing system forms a uniform and efficient mixing flow field in the mineralization chamber, ensuring that the desalinated seawater and minerals are fully mixed. This results in stable water quality after mineralization that meets diverse needs, solving the problems of difficult control of mineral addition and large fluctuations in water quality in existing technologies.

[0017] 2. High-efficiency pretreatment and long equipment life: The multi-stage filter screen of the influent pretreatment unit filters sequentially from large pore size to small pore size, effectively intercepting various particulate impurities in seawater. This greatly reduces the risk of impurities clogging critical internal components such as pipes, metering pumps, and agitator blades, extending the overall service life of the equipment. The composite ion exchange resin column highly selectively removes harmful ions and finely adjusts the pH and ionic strength of the influent, providing suitable water quality for the subsequent mineralization core unit and ensuring efficient and stable mineralization reactions. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the present invention.

[0020] Figure 3 This is the front view of the present invention;

[0021] In the diagram: 1 First frame, 2 Second frame, 3 Filter screen, 4 Ion exchange resin column, 5 Mineralization chamber, 6 Water quality detection sensor, 7 Automatic backwashing device, 8 Chemical cleaning device. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, 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., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Reference Figure 1-3 A reverse osmosis seawater desalination water mineralization device includes a first frame 1 and a second frame 2. The upper part of the second frame 2 is rationally configured with an influent pretreatment unit and a mineralization core unit. This layout allows the desalinated seawater to undergo preliminary treatment and core mineralization operations quickly and efficiently after entering the device, reducing energy loss and time delays in the water flow path. The upper part of the first frame 1 is equipped with a water quality monitoring and control unit, a cleaning and maintenance unit, and an energy recovery unit. These units operate independently yet collaboratively, ensuring stable operation and high efficiency of the equipment. The dual-frame structure achieves a zoned layout of functional units, facilitating equipment installation, commissioning, maintenance, and future functional expansion.

[0026] Inlet Water Pretreatment Unit: This unit is equipped with multiple filters 3 of different pore sizes, arranged in a tiered manner. The large-pore filters first intercept larger particles of impurities in the seawater, such as shell fragments and large plankton remains. Subsequently, the small-pore filters further filter finer particles, forming a multi-stage protection system to minimize the entry of impurities into subsequent units. This effectively prevents damage to critical internal components such as pipes, metering pumps, and agitator blades due to clogging, significantly extending the equipment's service life. Ion Exchange Resin Column 4: Utilizing advanced composite ion exchange resin materials, this column exhibits highly selective adsorption and exchange capabilities for common harmful ions in seawater, such as heavy metal ions and excess chloride ions. Through the ion exchange process, not only are harmful ions removed, but the pH and ionic strength of the inlet water are also finely adjusted, creating more suitable water quality conditions for the subsequent mineralization core unit and ensuring that the mineralization reaction proceeds efficiently and stably.

[0027] The core mineralization unit, mineralization chamber 5, is made of high-strength, corrosion-resistant special alloy materials, capable of withstanding long-term seawater corrosion and complex chemical mineralization reaction environments. Its internal multi-layered, specially designed baffles are arranged in a staggered pattern, forming a highly tortuous and scientifically rational water flow path. As the desalinated seawater flows through these baffles, its flow rate slows, and its residence time is significantly extended, allowing for full contact and reaction with the added minerals, greatly enhancing the mineralization effect. Multiple independent mineral storage tanks in the mineral addition system are used to separately store various beneficial mineral salts such as calcium, magnesium, and potassium salts. Each storage tank is equipped with an independent high-precision metering pump. The metering pump uses advanced digital control technology to precisely adjust the flow rate of the mineral salt solution according to instructions from the control system, keeping the error within a very small range, thus achieving precise control of the amount of minerals added. The high-power drive motor of the mixing and stirring system uses variable frequency speed control technology, which automatically adjusts the motor speed based on real-time parameters such as water flow velocity, water quality changes, and the amount of minerals added within mineralization chamber 5, thereby driving the stirring blades to rotate at the optimal high speed. By optimizing the shape, angle, and distribution of the stirring blades, a uniform and efficient stirring flow field is ensured to be formed throughout the mineralization chamber 5, which promotes the full and uniform mixing of seawater desalination water and minerals, ensuring the consistency and stability of the water quality after mineralization.

[0028] Water Quality Monitoring and Control Unit: The water quality sensor 6 adopts a multi-parameter integrated design, enabling simultaneous, real-time, and accurate monitoring of multiple key water quality parameters in both influent and effluent, including mineral content, pH value, conductivity, and oxidation-reduction potential. The sensor features rapid response capabilities, transmitting detection data quickly to the control system via high-speed data transmission lines. The control system utilizes advanced artificial intelligence algorithms and fuzzy control technology to perform in-depth comparative analysis of real-time detection data with preset mineralization target values. This allows for automatic and precise adjustment of the metering pump's operating parameters in the mineral addition system, including flow rate and pressure, while simultaneously and precisely controlling the impeller speed of the mixing system. Through this intelligent and automated control method, the mineralization process is fully automated and precisely executed, ensuring that the desalinated seawater quality consistently meets standards and satisfies the diverse water quality needs of different users.

[0029] Cleaning and Maintenance Unit: The automatic backwashing device 7 is equipped with a high-pressure water pump and an intelligent valve control system. At preset time intervals, the system automatically starts the high-pressure water pump, injecting specially filtered high-pressure water at a specific angle and pressure into the mineralization chamber walls, agitator blades, and connecting pipes. The high-pressure water flow powerfully washes away impurities, dirt, and unreacted mineral deposits adhering to the equipment surface, effectively preventing equipment blockage and maintaining efficient operation. When the backwashing device cannot completely remove stubborn dirt, the intelligent chemical cleaning device 8 automatically starts. This device has a built-in intelligent dirt analysis system that can automatically identify the type of dirt based on equipment operating conditions, water quality test data, and backwashing effects, and precisely mix an appropriate amount of chemical cleaning agent according to a preset cleaning formula. The chemical cleaning agent is evenly injected into the equipment through a dedicated injection pipe for deep cleaning. After cleaning, the system automatically switches to a clean water rinsing mode, performing multiple rounds of clean water rinsing to ensure no cleaning agent residue remains inside the equipment, guaranteeing the safety of the mineralized water. In addition, the equipment adopts a modular and easy-to-disassemble design concept. The functional units are assembled through standardized connection interfaces, which makes it easy to disassemble and assemble each unit in daily maintenance, greatly reducing the difficulty and time cost of maintenance work.

[0030] Energy Recovery Unit: The energy recovery unit cleverly utilizes the pressure difference between the inlet and outlet water to incorporate a highly efficient energy recovery device. This device employs advanced turbine power generation or hydraulic energy conversion technology. When the desalinated seawater flows out of the equipment, some of the energy it carries drives the turbine or hydraulic mechanism within the energy recovery device, converting the kinetic energy of the water flow into mechanical or electrical energy. The recovered energy is rationally allocated through an energy management system, primarily used to assist the operation of the stirring system motor, reducing the energy consumption of the main motor, and providing additional power support for equipment such as metering pumps in the mineral addition system. Through this energy recovery and utilization mechanism, the overall energy consumption of the equipment is effectively reduced, energy utilization efficiency is improved, and the equipment possesses significant advantages in energy conservation and environmental protection.

[0031] Equipment Installation and Commissioning: According to the planned scheme, accurately install the first frame 1 and the second frame 2 in a suitable working area, ensuring the stability and levelness of the frames. Following standardized connection interfaces, precisely install the inlet pretreatment unit, mineralization core unit, water quality monitoring and control unit, cleaning and maintenance unit, and energy recovery unit in their designated positions on the corresponding frames. Connect the inlet and outlet pipes, power cables, and data transmission and control lines between each unit. During installation, carefully check the secure installation of each component to ensure tight connections without loosening. Use high-quality sealing materials for pipe connections to ensure the sealing of the piping system and prevent leakage. After equipment installation, conduct a comprehensive no-load commissioning. First, start each functional unit individually to check the operation of its internal components, such as the filtration effect of the filter screen, the working status of the ion exchange resin column, the sealing of the mineralization chamber 5, the rotational flexibility of the stirring blades, the data acquisition accuracy of the water quality sensor 6, the start-up response of the backwashing device 7 and the chemical cleaning device 8, and the energy conversion efficiency of the energy recovery device. Next, the entire equipment undergoes integrated commissioning to simulate actual operating conditions, check the collaborative working capabilities between units, and ensure smooth data transmission, accurate execution of control commands, and stable water and energy flow. Based on detailed testing reports of the actual influent water quality, key operating parameters such as mineralization target values, cleaning cycles, and energy recovery thresholds are precisely set in the control system to fully prepare for the equipment's formal operation.

[0032] Seawater desalination mineralization process: The desalinated seawater treated by reverse osmosis first flows into the influent pretreatment unit. Through multi-stage filtration by filter 3, various particulate impurities in the seawater are effectively intercepted. Subsequently, the water flows into the ion exchange resin column 4, where harmful ions are removed, and the water quality is optimized. The pretreated desalinated seawater then enters the mineralization chamber 5 of the mineralization core unit. At this time, the control system precisely controls the start of each metering pump in the mineral addition system based on the influent water quality data fed back by the water quality monitoring and control unit. According to preset precise ratios, different mineral salt solutions are transported from their respective storage tanks to the mineralization chamber 5 through pipelines. Simultaneously, the drive motor of the mixing and stirring system adjusts its speed according to real-time operating conditions, driving the stirring blades to rotate at high speed, ensuring thorough mixing of the desalinated seawater and mineral salt solutions within the mineralization chamber 5. In the tortuous water flow path formed by multiple baffles, the desalinated seawater flows slowly, undergoing a thorough mineralization reaction with the minerals. The mineralized desalinated seawater is then output through the outlet. Throughout the mineralization process, the water quality monitoring and control unit's water quality sensor 6 continuously monitors the water quality parameters of the influent and effluent in real time and rapidly transmits the data to the control system. Based on the monitoring data, the control system dynamically adjusts the operating parameters of the metering pump in the mineral addition system and the speed of the mixing blades in the mixing system in real time to ensure that the mineralization process is always in optimal condition, and that the water quality of the desalinated seawater after mineralization consistently meets the standards.

[0033] Equipment Cleaning and Maintenance: During equipment operation, the cleaning and maintenance unit automatically performs its tasks according to a preset program. The automatic backwashing device 7 starts periodically at set intervals, with a high-pressure water pump forcefully injecting high-pressure water into the equipment to thoroughly flush the mineralization chamber walls, agitator blades, and pipes, promptly removing attached impurities. If the backwashing effect fails to meet expectations after a period of operation, the intelligent chemical cleaning device 8 automatically activates. The intelligent fouling analysis system accurately determines the type of fouling based on equipment operating data and water quality changes, then automatically dispenses a suitable chemical cleaning agent for deep cleaning. After cleaning, the system automatically switches to a clean water rinsing process, performing multiple rounds of clean water rinsing to ensure no cleaning agent residue remains inside the equipment. In addition, a comprehensive inspection of each functional unit is conducted regularly. This inspection includes checking the filter screen's condition, the ion exchange resin column's exchange capacity, the degree of corrosion in the mineralization chamber 5, the agitator blades' wear, the accuracy of the water quality sensor 6, the performance of the backwashing device 7 and the chemical cleaning device 8, and the energy conversion efficiency of the energy recovery device. If any parts are found to be worn, damaged, or have degraded performance, they should be replaced or repaired in a timely manner to ensure the long-term stable and efficient operation of the equipment.

[0034] Energy recovery and utilization mechanism: During equipment operation, the energy recovery unit monitors the pressure difference between the inlet and outlet water in real time. When the pressure difference meets the energy recovery conditions, the energy recovery device automatically starts. The kinetic energy generated by the outflow of desalinated seawater drives the turbine or hydraulic mechanism within the energy recovery device, converting kinetic energy into mechanical or electrical energy. The converted energy is intelligently allocated through the energy management system, prioritizing its use for the auxiliary stirring system motor to reduce the energy consumption of the main motor, while also providing additional power support for equipment such as metering pumps in the mineral addition system. The energy management system dynamically adjusts the energy allocation ratio based on the real-time energy consumption requirements of each part of the equipment, ensuring the most rational and efficient use of energy, achieving an effective reduction in overall equipment energy consumption and a significant improvement in energy utilization efficiency.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reverse osmosis sea water desalination water mineralization apparatus, characterized in that, The system includes a first frame (1) and a second frame (2). The upper end of the second frame (2) is equipped with an inlet water pretreatment unit and a mineralization core unit. The upper end of the first frame (1) is equipped with a water quality monitoring and control unit, a cleaning and maintenance unit, and an energy recovery unit. The inlet water pretreatment unit includes multiple filter screens (3) with different pore sizes arranged in a hierarchical manner and an ion exchange resin column (4) made of composite ion exchange resin material. The mineralization core unit consists of a mineralization chamber (5) made of special alloy material and equipped with multiple layers of staggered partitions, a mineral addition system equipped with multiple independent mineral storage tanks and a digitally controlled high-precision metering pump, and a mixing and stirring system driven by a motor using variable frequency speed regulation technology. The water quality monitoring and control unit is equipped with a multi-parameter integrated water quality detection sensor (6) and a control system using artificial intelligence algorithms and fuzzy control technology. The cleaning and maintenance unit includes an automatic backwashing device (7) equipped with a high-pressure water pump and an intelligent valve control system, and an intelligent chemical cleaning device (8) with a built-in intelligent dirt analysis system. The energy recovery unit is an energy recovery device using turbine power generation technology or hydraulic energy conversion technology.

2. A reverse osmosis sea water desalination water mineralization apparatus as claimed in claim 1, wherein, The filter screens (3) are arranged in layers. The large-pore filter screen first intercepts larger particles of impurities, and the small-pore filter screen further filters out fine particles.

3. A reverse osmosis sea water desalination water mineralization apparatus as claimed in claim 2, wherein, The ion exchange resin column (4) has a highly selective adsorption and exchange capacity for harmful ions in seawater, and can regulate the pH and ionic strength of the influent.

4. The reverse osmosis seawater desalination water mineralization equipment according to claim 3, characterized in that, The mineralization chamber (5) has interlaced partitions that form a tortuous water flow path, which prolongs the residence time of the desalinated seawater.

5. The reverse osmosis seawater desalination water mineralization equipment according to claim 4, characterized in that, The mineral storage tanks store calcium salts, magnesium salts, and potassium salts respectively, and the metering pump can precisely adjust the flow rate of the mineral salt solution with the error controlled within a very small range.

6. The reverse osmosis seawater desalination water mineralization equipment according to claim 5, characterized in that, The shape, angle, and distribution of the mixing blades in the mixing system have been optimized to form a uniform and efficient mixing flow field.

7. The reverse osmosis seawater desalination water mineralization equipment according to claim 6, characterized in that, The water quality sensor (6) can simultaneously and accurately monitor the mineral content, pH, conductivity, and oxidation-reduction potential of the influent and effluent in real time.

8. The reverse osmosis seawater desalination water mineralization equipment according to claim 7, characterized in that, The control system can perform in-depth comparative analysis of real-time detection data with preset mineralization target values, and quickly adjust the working parameters of the mineral addition system and the mixing and stirring system.

9. A reverse osmosis seawater desalination water mineralization device according to claim 8, characterized in that, The backwashing device (7) can be automatically started at a set time interval and inject high-pressure water flow in the reverse direction to flush the inside of the equipment.

10. A reverse osmosis seawater desalination water mineralization device according to claim 9, characterized in that, The intelligent chemical cleaning device (8) can automatically identify the type of dirt according to the equipment operation status, water quality test data and backwashing effect, and accurately adjust the chemical cleaning agent. The energy recovery device can convert the kinetic energy of the desalinated seawater outflow into mechanical energy or electrical energy, and rationally allocate it through the energy management system to assist the operation of the internal components of the equipment.

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