Salt light complementary seawater utilization system based on seawater desalination

By combining solar energy and seawater pressure power generation into a salt-solar complementary system, the problems of high energy consumption and resource waste in existing seawater desalination technologies have been solved, achieving efficient and environmentally friendly comprehensive utilization of seawater resources.

CN224530691UActive Publication Date: 2026-07-21CHUXIONG NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUXIONG NORMAL UNIV
Filing Date
2025-08-18
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing seawater desalination technologies are highly dependent on fossil fuels, resulting in high energy consumption and high greenhouse gas emissions. At the same time, they fail to effectively utilize the mineral and energy potential of concentrated brine, limiting economic benefits and environmental sustainability.

Method used

By combining solar panels and generators with batteries and a water turbine system, the system achieves salt-solar complementarity through solar power generation and seawater pressure power generation, comprehensively utilizing the desalination and power generation processes to recover energy and minerals from concentrated brine.

Benefits of technology

It has improved energy efficiency, reduced operating costs, reduced environmental impact, and achieved comprehensive and high-value utilization of seawater resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to sea water desalination technical field, specifically disclose a salt light complementary seawater utilization system based on sea water desalination, including first support and second support, the first support is installed with desalination mechanism and power generation mechanism on the second support and sets up, the desalination mechanism includes setting solar panel at first support one side, first support one side is provided with booster pump, solar panel is used to produce electric energy, the booster pump is used to carry out the desalination of seawater pressurization after being convenient, through the filter of seawater and pass in the filter impurity, through first communication pipe and pass in the booster pump of seawater, through the booster pump can carry out the pressurization of seawater, the seawater after pressurization will be transmitted to desalination pond through first communication pipe, then through the osmosis of reverse osmosis membrane, thereby carry out the desalination operation to seawater, finally through second communication pipe and transmit the seawater after desalination to the storage of storage pond.
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Description

Technical Field

[0001] This utility model belongs to the field of seawater desalination technology, specifically, it relates to a salt-photovoltaic complementary seawater utilization system based on seawater desalination. Background Technology

[0002] The core bottleneck facing the development of current mainstream seawater desalination technologies, such as reverse osmosis and distillation, lies in their heavy reliance on fossil fuels. These technologies are inherently energy-intensive processes, with their operation primarily powered by coal-fired or natural gas-fired power plants. This not only leads to enormous energy consumption and high operating costs, but more importantly, it generates significant greenhouse gas emissions, exacerbating global climate change and creating a sharp contradiction with their initial goal of alleviating water resource pressures in terms of environmental sustainability. Simultaneously, the large amounts of highly concentrated brine (saltwater / brine) produced by this process, due to its extremely high salinity (typically more than twice that of seawater) and density, cannot be rapidly dispersed and diluted upon discharge back into the ocean. Instead, it sinks and accumulates on the seabed, forming localized "salinity deserts." This extreme environment directly poisons benthic organisms, damages the structure and function of marine benthic ecosystems, leads to a decline in biodiversity, and poses a potential threat to fishery resources that depend on a healthy marine environment.

[0003] Traditional seawater desalination methods exhibit significant one-wayness and inefficiency in resource utilization. Their focus is almost entirely on freshwater production, neglecting the multiple opportunities for resource recovery inherent in the entire process. On one hand, the discharged brine not only contains high concentrations of sodium chloride (table salt) but is also rich in valuable minerals and rare elements such as bromine, magnesium, potassium, and lithium. These substances are discharged into the sea without effective extraction, wasting precious mineral resources and increasing the environmental burden. On the other hand, the desalination process itself (especially the residual pressure generated by the high-pressure pump in reverse osmosis and the large amount of low-grade waste heat generated in distillation) and the significant salinity difference between the brine and seawater contain considerable energy potential (such as residual pressure energy, waste heat energy, and salinity difference energy). This energy is currently rarely effectively captured and utilized, but rather dissipated. This linear model of "taking water, abandoning energy, and abandoning minerals" severely limits the overall economic benefits and environmental sustainability of seawater desalination projects, failing to achieve comprehensive, high-value utilization of seawater resources.

[0004] Therefore, this invention proposes a salt-photovoltaic complementary seawater utilization system based on seawater desalination to solve the problems existing in the prior art. Utility Model Content

[0005] In view of this, the main purpose of this utility model is to provide a salt-photovoltaic complementary seawater utilization system based on seawater desalination, so as to solve the problems of existing seawater desalination methods in terms of economic benefits and environmental sustainability, and the failure to achieve comprehensive utilization of all elements and high value of seawater resources.

[0006] To achieve the above objectives, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A salt-photovoltaic complementary seawater utilization system based on seawater desalination includes a first support and a second support, on which a desalination mechanism and a power generation mechanism are installed.

[0008] The desalination mechanism includes a solar panel disposed on one side of a first support, and a booster pump disposed on one side of the first support. The solar panel is used to generate electricity, and the booster pump is used to pressurize the seawater to facilitate subsequent desalination.

[0009] The power generation mechanism includes a power generation battery mounted on one side of the first support, on which a generator and a water turbine are mounted. The generator and the water turbine work together to generate electrical energy.

[0010] In a preferred embodiment of this utility model, the desalination mechanism includes a support plate connected and installed on the outer wall of one side of the first bracket, a solar panel installed on the outer wall of the support plate, a battery installed on the support plate, a controller installed on the outer wall of one side of the first bracket, a filter installed on the top surface of the first bracket, a first connecting pipe connected to the top of the filter, and a booster pump connected and installed on the first connecting pipe.

[0011] In a preferred embodiment of the present invention, the power generation mechanism includes a third connecting pipe connected to the bottom end of the first connecting pipe, a permeable membrane connected to the inner wall of the power generation battery, a fixing plate connected to the outer wall of the power generation battery, a generator mounted on the top surface of the fixing plate, and a water turbine connected to the output end of the generator.

[0012] In a preferred embodiment of this utility model, a desalination tank is installed on the top surface of the second support, a reverse osmosis membrane is connected to the inner wall of the desalination tank, a second connecting pipe is connected to the bottom end of the desalination tank, and a water storage tank is connected to the end of the second connecting pipe away from the desalination tank.

[0013] In a preferred embodiment of this utility model, the outer wall of the generator is connected to a water outlet pipe, and the bottom of the desalination tank is connected to a fourth connecting pipe on one side of the second connecting pipe.

[0014] In a preferred embodiment of this utility model, the solar panel is electrically connected to the battery, the controller is electrically connected to the battery, and the booster pump is electrically connected to the battery.

[0015] In a preferred embodiment of this utility model, the power battery is divided into two chambers by a permeable membrane. The chamber located on one side of the water turbine is the seawater chamber, and the chamber opposite the seawater chamber is the high-salt brine chamber.

[0016] Compared with the prior art, this utility model provides a salt-photovoltaic complementary seawater utilization system based on seawater desalination, which has the following beneficial effects:

[0017] 1. Seawater is filtered to remove impurities by passing it through a filter. Then, the seawater is fed into a booster pump through a first connecting pipe. The booster pump pressurizes the seawater, which is then transported to a desalination tank through the first connecting pipe. The seawater then undergoes desalination by passing through a reverse osmosis membrane. Finally, the desalinated seawater is transported to a storage tank through a second connecting pipe for storage.

[0018] 2. Seawater can be transported to the power generation battery via the third connecting pipe. The falling seawater drives a water turbine, which in turn drives a generator to produce electricity. The generated electricity is then stored in the battery. High-salinity brine can be transported to the power generation battery via the fourth connecting pipe. Water from the seawater then flows through a permeable membrane into the high-salinity brine, diluting it. This dilution process also generates electricity, further utilizing the energy produced during seawater desalination. This improves the energy efficiency of the equipment and extends its operating time. This method addresses the shortcomings of existing seawater desalination methods in terms of economic efficiency and environmental sustainability, failing to achieve comprehensive and high-value utilization of seawater resources.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the salt-photovoltaic complementary seawater utilization system based on seawater desalination of this utility model;

[0022] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the desalination mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the power generation mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the power generation mechanism of this utility model.

[0026] [Explanation of Key Component Symbols]

[0027] 1. First support frame; 2. Second support frame; 3. Desalination mechanism; 31. Support plate; 32. Solar panel; 33. Battery; 34. Controller; 35. Filter; 36. First connecting pipe; 37. Booster pump; 38. Desalination tank; 39. Reverse osmosis membrane; 310. Second connecting pipe; 311. Water storage tank; 4. Power generation mechanism; 41. Third connecting pipe; 42. Power battery; 43. Reverse osmosis membrane; 44. Fixing plate; 45. Generator; 46. Water turbine; 47. Outlet pipe; 48. Fourth connecting pipe. Detailed Implementation

[0028] The structure of this salt-photovoltaic complementary seawater utilization system based on seawater desalination will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] The following is combined with Figures 1 to 5 This invention describes a salt-photovoltaic complementary seawater utilization system based on seawater desalination.

[0034] A salt-photovoltaic complementary seawater utilization system based on seawater desalination includes a first support 1 and a second support 2. A desalination mechanism 3 and a power generation mechanism 4 are installed on the first support 1 and the second support 2. The desalination mechanism 3 includes a solar panel 32 installed on one side of the first support 1 and a booster pump 37 installed on one side of the first support 1. The solar panel 32 is used to generate electricity, and the booster pump 37 is used to pressurize the seawater to facilitate subsequent desalination. The power generation mechanism 4 includes a battery 42 installed on one side of the first support 1. A generator 45 and a water turbine 46 are installed on the battery 42. The generator 45 and the water turbine 46 work together to generate electricity.

[0035] Furthermore, the desalination mechanism 3 includes a support plate 31 connected to and installed on one side of the outer wall of the first bracket 1, a chamber solar panel 32 installed on the outer wall of the support plate 31, a battery 33 installed on the chamber support plate 31, a controller 34 installed on one side of the outer wall of the first bracket 1, a filter 35 installed on the top surface of the first bracket 1, a first connecting pipe 36 connected to the top of the chamber filter 35, and a chamber booster pump 37 connected to and installed on the first connecting pipe 36.

[0036] Furthermore, a desalination tank 38 is installed on the top surface of the second support 2, a reverse osmosis membrane 39 is connected to the inner wall of the desalination tank 38, a second connecting pipe 310 is connected to the bottom end of the desalination tank 38, and a water storage tank 311 is connected to the end of the second connecting pipe 310 away from the desalination tank 38.

[0037] Furthermore, the solar panel 32 is electrically connected to the battery 33, the chamber controller 34 is electrically connected to the battery 33, and the chamber booster pump 37 is electrically connected to the battery 33. In this way, the electrical energy generated by the solar panel 32 can be directly stored in the battery 33, while simultaneously increasing the power source for the booster pump 37.

[0038] The power generation mechanism 4 includes a third connecting pipe 41 connected to the bottom end of the first connecting pipe 36, a permeable membrane 43 connected to the inner wall of the power generation battery 42, a fixing plate 44 connected to the outer wall of the power generation battery 42, a generator 45 installed on the top surface of the fixing plate 44, and a water turbine 46 connected to the output end of the generator 45.

[0039] Furthermore, a water outlet pipe 47 is connected to the outer wall of the battery 42, and a fourth connecting pipe 48 is connected to the bottom end of the chamber desalination tank 38 on one side of the second connecting pipe 310.

[0040] Furthermore, the battery 42 is divided into two chambers by a permeation membrane 43. The chamber located on one side of the water turbine 46 is the seawater chamber, and the chamber opposite the seawater chamber is the high-salinity brine chamber. In this way, water in the seawater can move to the high-salinity brine through the permeation membrane 43, thereby diluting the high-salinity brine.

[0041] The implementation principle of this utility model's salt-photovoltaic complementary seawater utilization system based on seawater desalination is as follows: First, solar panels 32 generate electricity, which is then stored in a battery 33. The stored electricity powers a booster pump 37, which then supplies power to the pump. Seawater is then introduced into a filter 35, which filters out a large number of impurities, facilitating subsequent percolation desalination. Simultaneously, the booster pump 37 is activated, and the filtered seawater is then introduced into the desalination tank 38 through the booster pump 37 and the first connecting pipe 36. The pressurized seawater will be desalinated through reverse osmosis membrane 39. After desalination, the seawater can be transported to storage tank 311 through second connecting pipe 310, thus completing the desalination operation. The desalinated seawater can be stored in storage tank 311 for subsequent disinfection, deoxygenation and other treatments before being transported to freshwater use ends such as residential water pipes, agricultural irrigation systems or industrial water equipment in coastal cities. Compared with the traditional method of using fossil fuels such as coal to power seawater desalination, this method can reduce energy consumption and reduce environmental impact.

[0042] While seawater is being transported through the first connecting pipe 36, it is also being transported to the generator 42 through the fourth connecting pipe 48. At this point, the seawater flows downwards towards the waterwheel 46, causing it to rotate due to gravity. This rotation drives the output of the generator 45, generating electricity. The generated electricity is then transferred to the storage battery 33, providing a continuous power supply in conjunction with the solar panel 32, thus extending the equipment's operating time. Seawater that fails to pass through the reverse osmosis membrane 39 after passing through the desalination mechanism 3 will produce high-salinity brine. The water is then transmitted to the power generation cell 42 through the fourth connecting pipe 48. The permeation membrane 43 inside the power generation cell 42 allows water in the seawater to move towards the high-salinity brine side, thereby diluting the high-salinity brine. At the same time, the outlet pipe 47 on the high-salinity brine side is opened to allow the high-salinity brine to flow outward. In this way, the continuous input of seawater and high-salinity brine into the power generation cell 42 forms a permeation cycle. Thus, power generation can be carried out during the dilution of the high-salinity brine, thereby further utilizing the energy generated in the desalination of seawater, thereby further improving the energy utilization rate of the equipment and increasing the operating time of the equipment.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A salt-photovoltaic complementary seawater utilization system based on seawater desalination, comprising a first support (1) and a second support (2), characterized in that, The first support (1) and the second support (2) are equipped with a desalination mechanism (3) and a power generation mechanism (4); The desalination mechanism (3) includes a solar panel (32) disposed on one side of the first support (1), and a booster pump (37) disposed on one side of the first support (1). The solar panel (32) is used to generate electricity, and the booster pump (37) is used to pressurize the seawater to facilitate desalination. The power generation mechanism (4) includes a power generation battery (42) disposed on one side of the first support (1). A generator (45) and a water turbine (46) are disposed on the power generation battery (42). The generator (45) and the water turbine (46) work together to generate electrical energy.

2. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 1, characterized in that, The desalination mechanism (3) includes a support plate (31) connected to and installed on the outer wall of one side of the first bracket (1), a solar panel (32) installed on the outer wall of the support plate (31), a battery (33) installed on the support plate (31), a controller (34) installed on the outer wall of one side of the first bracket (1), a filter (35) installed on the top surface of the first bracket (1), a first connecting pipe (36) connected to the top of the filter (35), and a booster pump (37) connected to the first connecting pipe (36).

3. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 1, characterized in that, The power generation mechanism (4) includes a third connecting pipe (41) connected to the bottom end of the first connecting pipe (36), a permeable membrane (43) is connected to the inner wall of the power generation battery (42), a fixing plate (44) is connected to the outer wall of the power generation battery (42), a generator (45) is installed on the top surface of the fixing plate (44), and a water turbine (46) is connected to the output end of the generator (45).

4. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 1, characterized in that, A desalination tank (38) is installed on the top surface of the second support (2). A reverse osmosis membrane (39) is connected to the inner wall of the desalination tank (38). A second connecting pipe (310) is connected to the bottom end of the desalination tank (38). A water storage tank (311) is connected to the end of the second connecting pipe (310) away from the desalination tank (38).

5. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 4, characterized in that, The outer wall of the power generation battery (42) is connected to a water outlet pipe (47), and the bottom end of the desalination tank (38) is connected to a fourth connecting pipe (48) on one side of the second connecting pipe (310).

6. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 2, characterized in that, The solar panel (32) is electrically connected to the battery (33), the controller (34) is electrically connected to the battery (33), and the booster pump (37) is electrically connected to the battery (33).

7. The salt-photovoltaic complementary seawater utilization system based on seawater desalination as described in claim 3, characterized in that, The power generation battery (42) is divided into two chambers by a permeable membrane (43). The chamber located on one side of the water turbine (46) is the seawater chamber, and the chamber opposite the seawater chamber is the high-salt brine chamber.