Water producing device and water producing system

Abstract

The application discloses a water producing device and a water producing system. The water producing device comprises a flow guide structure, a water producing device and a water producing cavity. The water producing cavity is provided with a water inlet area and a water outlet area. The water producing cavity is provided with a water producing pipeline. The water producing pipeline is provided with a filter module and a primary reverse osmosis water producing structure which are sequentially distributed along the water flow direction. The water inlet cross-sectional area of the water inlet area is gradually reduced along the direction close to the water outlet area. The inlet of the water producing pipeline is connected to the water inlet area. The water producing pipeline is provided with a first booster pump which is selectively opened between the filter module and the primary reverse osmosis water producing structure. The water producing device can realize reverse osmosis water producing by using high-pressure seawater under the deep sea. The work of the first booster pump is saved. The water producing power consumption is reduced. The water producing cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and more particularly to a water-making device and a water-making system having the device. Background Technology

[0002] Reverse osmosis seawater desalination technology has become one of the main means of obtaining fresh water to solve water scarcity and has been widely used around the world.

[0003] Existing reverse osmosis water production equipment requires pumps for seawater transport, seawater pressurization, and concentrated brine discharge, which increases power consumption and costs, leaving room for improvement. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a water production device with a simple structure and multiple application scenarios. It can use high-pressure seawater to produce water through reverse osmosis in the deep sea, saving the work of the first booster pump, reducing the power consumption of water production, and can activate the first booster pump to increase the water pressure to achieve reverse osmosis water production when the water pressure is insufficient.

[0005] According to an embodiment of the present invention, a water-making device includes: a diversion structure having a diversion cavity formed therein, the diversion cavity having an inlet area and an outlet area; and a water-making device having a water-making cavity formed therein, the water-making cavity having a water-making pipeline, the water-making pipeline having a filter module and a first-stage reverse osmosis water-making structure sequentially distributed along the water flow direction; wherein, the inlet cross-sectional area of ​​the inlet area is configured to gradually decrease along the direction close to the outlet area, the inlet of the water-making pipeline is connected to the inlet area, and the water-making pipeline has a selectively activated first booster pump between the filter module and the first-stage reverse osmosis water-making structure.

[0006] According to the water production device of the present invention, by selectively activating the first booster pump in the water production pipeline, different water pressure requirements in the water production pipeline can be met. In this way, reverse osmosis water production can be achieved using high-pressure seawater in the deep sea, saving the operation of the first booster pump, reducing water production power consumption, improving energy efficiency ratio, and reducing water production cost. Moreover, the first booster pump can be activated when the water pressure is insufficient to increase the water pressure and achieve reverse osmosis water production. Its structure is simple and has more application scenarios.

[0007] According to some embodiments of the water production apparatus of the present invention, the drainage cavity further includes a central region communicating between the water inlet region and the water outlet region, and the primary reverse osmosis water production structure is connected to a salt discharge path, which is communicating with the central region.

[0008] According to some embodiments of the water-making apparatus of the present invention, the inlet cross-sectional area of ​​the inlet region and the outlet cross-sectional area of ​​the outlet region are both larger than the flow cross-sectional area of ​​the central region.

[0009] According to some embodiments of the water-making apparatus of the present invention, the cross-sectional area of ​​the water outlet region is configured to gradually increase in a direction away from the central region;

[0010] And / or, the cross-sectional area of ​​the central region along the direction of water flow remains unchanged.

[0011] According to some embodiments of the water-making apparatus of the present invention, along the water flow direction, the length of the inlet region is greater than the length of the middle region and less than the length of the outlet region.

[0012] According to some embodiments of the present invention, the water production device further includes a secondary reverse osmosis water production structure, a water storage tank, and a post-treatment module, which are sequentially distributed along the water flow direction and located downstream of the primary reverse osmosis water production structure.

[0013] According to some embodiments of the water making apparatus of the present invention, a second booster pump is provided between the water inlet area and the filter module;

[0014] And / or, a third booster pump is provided between the primary reverse osmosis water production structure and the secondary reverse osmosis water production structure;

[0015] And / or, a cleaning pipeline is provided between the water storage tank and the inlet end of the primary reverse osmosis water production structure, and the cleaning pipeline is equipped with a fourth booster pump.

[0016] According to some embodiments of the water-making apparatus of the present invention, the diversion structure is disposed at the bottom of the water-making device.

[0017] According to some embodiments of the water production device of the present invention, the water production pipeline is further provided with a shut-off valve between the filter module and the first-stage reverse osmosis water production structure, and the shut-off valve is distributed in parallel with the first booster pump.

[0018] The present invention also proposes a water production system.

[0019] According to an embodiment of the present invention, a water-making system includes a traction device and a water-making device according to any of the above embodiments. The traction device and the water-making device are connected by a connecting cable, and the outlet end of the water-making pipeline is connected to the traction device through a water supply pipeline. The water supply pipeline passes between the diversion structure and the water-making device.

[0020] The water production system and the aforementioned water production device have the same advantages over the prior art, and will not be repeated here.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a water production system according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a water-making device according to an embodiment of the present invention;

[0025] Figure 3 This is a top view of a water-making device according to an embodiment of the present invention.

[0026] Figure label:

[0027] Water production system 100, water production device 101,

[0028] The system includes: a flow diversion structure 1, a flow diversion chamber 11, an inlet water area 111, an outlet water area 112, a central area 113, a water production device 2, a water production chamber 21, a water production pipeline 211, a filter module 2111, a first-stage reverse osmosis water production structure 2112, a first booster pump 2113, a second-stage reverse osmosis water production structure 2114, a water storage tank 2115, a post-treatment module 2116, a second booster pump 2117, a third booster pump 2118, a shut-off valve 2119, a brine discharge path 212, a cleaning pipeline 213, a fourth booster pump 2131, and an adjusting vane 214.

[0029] Traction device 102, connecting cable 103, water supply pipeline 104. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of this invention, 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," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The following is for reference. Figures 1-3 The water production device 101 according to an embodiment of the present invention has a simple structure and can be used in many scenarios. It can use high-pressure seawater to produce water through reverse osmosis in the deep sea, saving the work of the first booster pump 2113, reducing the power consumption of water production, and can turn on the first booster pump 2113 to increase the water pressure to achieve reverse osmosis water production when the water pressure is insufficient.

[0034] like Figures 1-3 As shown, a water-making device 101 according to an embodiment of the present invention includes: a diversion structure 1 and a water-making device 2.

[0035] It should be noted that the water production device 101 can remove impurities such as solid particles, bacteria, and heavy metal ions from the water, and perform desalination, thereby purifying the water. It can provide high-purity water for industrial, medical, and laboratory applications, as well as daily drinking water for people, meeting various water quality requirements. In this embodiment, the water production device 101 is described primarily for use in deep-sea operations.

[0036] The drainage structure 1 contains a drainage cavity 11, which has an inlet area 111 and an outlet area 112. The drainage cavity 11 guides seawater to flow in a specific direction, the inlet area 111 collects seawater, and the outlet area 112 discharges seawater. Specifically, the drainage structure 1 can be constructed as a cylinder, with the drainage cavity 11 located in the central region and extending along its length. The two ends of the drainage cavity 11 are the inlet area 111 and the outlet area 112, respectively. The inlet area 111 and the outlet area 112 are spaced apart along the length of the drainage cavity 11 and both have open sides for water inflow and outflow. Its structure is simple and its manufacturing cost is low.

[0037] The water making equipment 2 has a water making chamber 21, which is equipped with a water making pipeline 211. The water making pipeline 211 is equipped with a filter module 2111 and a first-stage reverse osmosis water making structure 2112 that are distributed sequentially along the water flow direction.

[0038] Among them, the filtration module 2111 is usually used as a pretreatment step. It is equipped with adsorbent materials such as activated carbon to remove large particles, suspended solids, silt, organic matter and other substances in the water to protect the subsequent reverse osmosis water production structure from clogging or damage. The first-stage reverse osmosis water production structure 2112 is the main water purification step. It is equipped with a reverse osmosis membrane. The reverse osmosis membrane has high selective permeability and can separate water molecules from dissolved solids, microorganisms and other substances to produce pure water.

[0039] Specifically, the water-making device 2 having a water-making chamber 21 means that the device is designed with a dedicated space or area for accommodating and guiding water flow through multiple treatment stages to achieve water production. The water-making device 2 can be constructed as a cylindrical structure, with the water-making chamber 21 located in its central area. The water-making chamber 21 is designed to conform to the shape of the water-making device 2, providing more space for the installation of various structures. The water-making chamber 21 extends along the length of the water-making device 2, and the water-making pipes 211 are distributed along the length of the water-making chamber 21. The water-making pipes 211 connect to a filter module 2111 and a first-stage reverse osmosis water-making structure 2112, which are sequentially spaced apart along the water flow direction. The filter module 2111 is correspondingly positioned to the inlet area 111 of the drainage chamber 11, and the first-stage reverse osmosis water-making structure 2112 is located downstream of the inlet area 111.

[0040] The inlet cross-sectional area of ​​the inlet region 111 is designed to gradually decrease along the direction closer to the outlet region 112. Specifically, the inlet cross-sectional area at the inlet end of the inlet region 111 is large, resulting in low seawater velocity and high pressure. The inlet cross-sectional area near the outlet region 112 of the inlet region 111 is small, resulting in high seawater velocity and low pressure. Furthermore, the gradual decrease in the inlet cross-sectional area along the direction closer to the outlet region 112 allows the pressure of the water flowing into the inlet region 111 to gradually decrease, while its velocity gradually increases.

[0041] The inlet of the water production pipeline 211 is connected to the inlet area 111. If the inlet of the water production pipeline 211 is connected to the inlet end of the inlet area 111, high-pressure seawater can flow into the water production pipeline 211, increasing the pressure of the seawater entering the water production pipeline 211. The water production pipeline 211 is equipped with a selectively operable first booster pump 2113 between the filter module 2111 and the first-stage reverse osmosis water production structure 2112. The first booster pump 2113 has a certain boosting effect, and the first booster pump 2113 can work selectively. That is, when the water pressure in the water production pipeline 211 is low, the first booster pump 2113 can be turned on to increase the water pressure to meet the required water pressure. When the water pressure in the water production pipeline 211 meets the requirements, the first booster pump 2113 does not need to work, saving the use of the first booster pump 2113. When the first booster pump 2113 is turned on, the water making device 2 can be used to make water on land to supplement water pressure to meet the water making needs. When the first booster pump 2113 is not turned on, the water making device 2 can be used to make water in the deep sea, which improves the application scenarios of the water making device 101. The switching method is simple and the use effect is good.

[0042] Therefore, when the water production device 101 is extended into the deep sea for operation, the high-pressure seawater enters the water intake area 111 and is then drawn into the water production pipeline 211. After pretreatment by the filtration module 2111, relatively clean seawater is obtained and then enters the first-stage reverse osmosis water production structure 2112. During this process, the seawater uses its own pressure to pass through the reverse osmosis membrane, which can separate water molecules from dissolved solids, microorganisms, etc. In this process, the first booster pump 2113 does not work, which can reduce the energy consumption of water production. In the traditional water production device 101, a booster pump is required to increase the pressure of the seawater, which increases the energy consumption of water production. However, the water production device 101 in this embodiment has low energy consumption, which can effectively improve the energy efficiency ratio of water production and thus improve the economy of marine operations. In addition, the diversion structure 1 is set up to improve the diversion efficiency of seawater, thereby improving the water production efficiency.

[0043] In some embodiments, the drainage cavity 11 further includes a central region 113 connected between the inlet region 111 and the outlet region 112, and the primary reverse osmosis water production structure 2112 is connected to a salt discharge path 212, which is connected to the central region 113.

[0044] Specifically, the inlet area 111 collects seawater to be treated, and the middle area 113 is located between the inlet area 111 and the outlet area 112, with both ends of the middle area 113 connected to the inlet area 111 and the outlet area 112, respectively. Figure 2 As shown, the water production chamber 21 is equipped with a salt discharge path 212. One end of the salt discharge path 212 is connected to the first-stage reverse osmosis water production structure 2112, and the other end of the salt discharge path 212 is connected to the central area 113. In this way, the sea salt in the water production pipe 211 can be discharged.

[0045] Therefore, after the seawater to be treated enters the inlet area 111, it sequentially enters the filter module 2111 and the first-stage reverse osmosis water production structure 2112 from the inlet end of the water production pipeline 211. The brine separated in the first-stage reverse osmosis water production structure 2112 is transported to the middle area 113 through the salt discharge path 212, and discharged into the sea from the middle area 113 and the outlet area 112. This can realize the timely discharge of concentrated brine, improve the desalination performance and water production efficiency of the water production equipment 2, and avoid the accumulation of sea salt on the surface of the reverse osmosis membrane, reduce the risk of scaling and biological pollution, and extend the service life of the reverse osmosis membrane.

[0046] In some embodiments, the inlet cross-sectional area of ​​the inlet region 111 and the outlet cross-sectional area of ​​the outlet region 112 are both larger than the flow cross-sectional area of ​​the central region 113. In this way, the pressure and flow velocity of seawater in the three regions of the drainage cavity 11 are different, so as to better realize the drainage of seawater.

[0047] Specifically, the inlet cross-sectional area of ​​the inlet area 111 is large, and the seawater pressure is high and the flow rate is slow, which is conducive to the rapid intake of the high-pressure seawater in the inlet area 111 into the water production pipe 211. The flow cross-sectional area of ​​the middle area 113 is small, which can increase the water flow velocity in the middle area 113, thereby increasing the discharge velocity of concentrated brine. The outlet cross-sectional area of ​​the outlet area 112 is large, which increases the cross-sectional area from the middle area 113 to the outlet area 112, allowing the concentrated brine separated during the water production process to flow into a larger space, which is conducive to the timely discharge of concentrated brine from the middle area 113.

[0048] Therefore, as Figure 2 As shown, by setting the cross-sectional area of ​​the drainage cavity 11 to a large-small-large structure, it is helpful to quickly draw in seawater and discharge concentrated brine, which can avoid the sea salt from clogging the middle area 113, thereby improving the water production efficiency. The structure is also simple and reasonable.

[0049] In some embodiments, the water outlet cross-sectional area of ​​the water outlet region 112 is configured to gradually increase in the direction away from the central region 113. Specifically, the water outlet cross-sectional area at the inlet end of the water outlet region 112 is small, the seawater flow velocity is high and the pressure is low, while the water outlet cross-sectional area away from the central region 113 of the water outlet region 112 is large, the seawater flow velocity is low and the pressure is high. Furthermore, the gradual increase in the water outlet cross-sectional area in the direction away from the central region 113 can gradually increase the pressure of the water flow entering the water outlet region 112 and gradually decrease its flow velocity. It can also make the inner wall of the pipe in the water outlet region 112 transition evenly, resulting in a better flow guiding effect.

[0050] Therefore, after the concentrated brine flows from the middle region 113 to the outlet region 112, the concentrated brine flows along the inner wall of the pipe in the outlet region 112. The concentrated brine is more likely to flow from the small space to the large space. Through the diversion effect of the outlet region 112, the discharge speed of the concentrated brine can be increased. Moreover, the flow velocity of the concentrated brine in the outlet region 112 gradually decreases, which can reduce the impact and friction on the inner wall of the pipe in the outlet region 112 and reduce pressure loss.

[0051] And / or, the cross-sectional area of ​​the flow in the central region 113 along the direction of water flow remains unchanged, that is, the flow velocity and pressure of the concentrated brine in the central region 113 are relatively uniform, which can reduce the eddies and turbulence of the concentrated brine in this region, help the concentrated brine flow smoothly, and reduce energy loss.

[0052] In this device, the water flow direction in the water-making equipment 2 is the same as the operating direction of the water-making equipment 2 in the seawater, and the water-making equipment 2 can have a certain angle relative to the horizontal plane. After the concentrated brine enters the central region 113, it flows to the outlet region 112 by its own gravity. Combined with the diversion structure 1 of the outlet region 112, the discharge speed of the concentrated brine can be effectively improved.

[0053] In some embodiments, along the water flow direction, the length of the inlet region 111 is greater than the length of the middle region 113 and less than the length of the outlet region 112.

[0054] Specifically, the drainage structure 1 can be constructed as a cylinder, and the length of the drainage cavity 11 in the drainage structure 1 can be the same as the length of the water-making cavity 21. The inlet area 111, the middle area 113, and the outlet area 112 all extend along the axial direction of the drainage structure 1, and the length of the inlet area 111 is greater than the length of the middle area 113. This can control the seawater flow velocity from the inlet area 111 to the middle area 113 to gradually increase. The longer inlet area 111 is used to store a certain amount of seawater and can reduce the impact of seawater entering the pipe, reducing the pressure and wear on the pipe inlet. The length of the inlet area 111 is less than the length of the outlet area 112, that is, the length of the middle area 113 is also less than the length of the outlet area 112. In this way, the flow velocity of the concentrated brine from the middle area 113 to the outlet area 112 can be controlled to gradually decrease, and the concentrated brine in the middle area 113 can flow quickly to the outlet area 112.

[0055] This allows the seawater flow rate to gradually increase and then gradually decrease, which helps reduce the wear and tear on the pipe walls. The longer inlet area 111 and outlet area 112 can also serve as buffer zones to prevent sudden changes in seawater pressure from damaging the system. The structure is simple and has a better effect on seawater diversion.

[0056] In some embodiments, the water production pipeline 211 is further provided with a secondary reverse osmosis water production structure 2114, a water storage tank 2115, and a post-treatment module 2116, which are distributed sequentially along the water flow direction and located downstream of the primary reverse osmosis water production structure 2112.

[0057] The secondary reverse osmosis water production structure 2114 is the water purification step. It is equipped with a reverse osmosis membrane, which has high selective permeability and can separate water molecules from tiny dissolved substances, microorganisms, etc., to produce pure water. The storage tank 2115 is used to store the produced pure water. The post-treatment module 2116 performs final adjustments or improvements on the reverse osmosis product water to meet specific water quality requirements. This may include steps such as pH adjustment, disinfection, degassing, and mineral addition. It can use equipment such as ultraviolet sterilizers, ozone generators, or EDI (electrodeionization) technology to ensure water quality safety and stability.

[0058] Specifically, the water production pipeline 211 contains, in sequence along the water flow direction, a filtration module 2111, a primary reverse osmosis water production structure 2112, a secondary reverse osmosis water production structure 2114, a water storage tank 2115, and a post-treatment module 2116. Thus, seawater, after being processed sequentially through the filtration module 2111, the primary reverse osmosis water production structure 2112, the secondary reverse osmosis water production structure 2114, the water storage tank 2115, and the post-treatment module 2116, yields product water that meets the required specifications. Furthermore, as... Figure 2As shown, there are two primary reverse osmosis water production structures 2112, which are connected in parallel in the water production pipeline 211 to improve the desalination efficiency of seawater. There is one secondary reverse osmosis water production structure 2114, which can meet the secondary desalination of seawater and save manufacturing costs.

[0059] The primary reverse osmosis membrane can be a high-pressure reverse osmosis membrane, and one or two sets of equal-pressure reverse osmosis membranes can be installed to improve the seawater desalination efficiency of the primary reverse osmosis membrane. After treatment by the primary reverse osmosis membrane, the seawater has a very low salinity, requiring lower pressure. The secondary reverse osmosis membrane can be a low-pressure reverse osmosis membrane, and water is further produced through secondary reverse osmosis. Thus, by using two stages of reverse osmosis to produce water, the purity of the water is improved to meet the required water quality.

[0060] In some embodiments, a second booster pump 2117 is provided between the water inlet area 111 and the filter module 2111, such as Figure 2 As shown, the second booster pump 2117 is located at the front end of the filter module 2111. It can draw the high-pressure seawater to be treated from the inlet area 111 into the water production pipeline 211. The second booster pump 2117 can control the flow rate of seawater, keeping the seawater evenly distributed within the filter module 2111. During the seawater extraction process, the second booster pump 2117 can overcome the resistance from the pipeline and filter media, ensuring that the seawater can pass through multiple filter media and has a suitable pressure after passing through the filter module 2111 to meet the water pressure requirements of the first-stage reverse osmosis water production structure 2112. Especially when the water pressure is insufficient, the second booster pump 2117 can increase the seawater pressure to achieve effective seawater filtration.

[0061] And / or, a third booster pump 2118 is provided between the primary reverse osmosis water production structure 2112 and the secondary reverse osmosis water production structure 2114, such as Figure 2 As shown, the third booster pump 2118 has a boosting function, which can transport the water treated by the first-stage reverse osmosis water production structure 2112 to the second-stage reverse osmosis water production structure 2114. It can also control the water flow, making the water flow more uniform and ensuring a certain flow speed to meet the pressure required by the second-stage reverse osmosis water production structure 2114 and improve the water production efficiency of the second-stage reverse osmosis water production structure 2114.

[0062] And / or, a cleaning pipeline 213 is provided between the water storage tank 2115 and the inlet end of the primary reverse osmosis water production structure 2112, and the cleaning pipeline 213 is equipped with a fourth booster pump 2131.

[0063] Specifically, such as Figure 2As shown, one end of the cleaning pipeline 213 is connected to the water storage tank 2115, and the other end is connected to the inlet of the first-stage reverse osmosis water production structure 2112. The cleaning pipeline 213 is equipped with a fourth booster pump 2131. After the fourth booster pump 2131 operates, purified water from the water storage tank 2115 flows along the cleaning pipeline 213 into the first-stage reverse osmosis water production structure 2112 to clean the first-stage reverse osmosis membrane and pipes. The cleaned water then flows into the second-stage reverse osmosis water production structure 2114 to clean the second-stage reverse osmosis membrane and pipes, removing fouling and biofilm from the surfaces of the first and second-stage reverse osmosis membranes and restoring their performance. The cleaned water has a low salt content and is collected after cleaning to improve water utilization. The cleaning pipeline 213 allows for periodic cleaning of the reverse osmosis water production structure, ensuring the performance of the reverse osmosis membranes and extending their service life.

[0064] Therefore, by installing booster pumps at different locations in the water production pipeline 211, the water flow and pressure in the water production pipeline 211 can be guaranteed, and the water flow can be made to flow in the set direction, thereby ensuring that the water production equipment 2 can efficiently and stably produce product water that meets the requirements.

[0065] In some embodiments, the diversion structure 1 is located at the bottom of the water making device 2. The diversion structure 1 can be detachably connected to the bottom of the water making device 2. The two can be selectively connected according to actual needs. When the water making device 2 is applied in the deep sea, the diversion structure 1 is connected to the water making device 2. When the water making device 2 is applied on land, the diversion structure 1 is detached from the water making device 2 according to the characteristics of the water source to be treated. Both the diversion structure 1 and the water making device 2 are modular, easy to replace, and can be quickly updated and repaired, which can reduce maintenance costs.

[0066] Among them, such as Figure 3 As shown, the water-making device 2 can adopt a UUV shape. The UUV (Unmanned Underwater Vehicle) has a streamlined shape, which can reduce the underwater resistance of the water-making device 2 and improve navigation efficiency. In addition, the UUV material has good water pressure resistance and corrosion resistance. The UUV is equipped with a balance adjustment wing 214, which can adjust its own balance to achieve optimal flow.

[0067] In some embodiments, the water production pipeline 211 is further provided with a shut-off valve 2119 between the filter module 2111 and the first-stage reverse osmosis water production structure 2112, and the shut-off valve 2119 is distributed in parallel with the first booster pump 2113.

[0068] Specifically, the shut-off valve 2119 has the functions of regulating the water flow, cutting off and connecting the water flow, such as... Figure 2As shown, the shut-off valve 2119 and the first booster pump 2113 are connected in parallel between the filter module 2111 and the first-stage reverse osmosis water production structure 2112. The shut-off valve 2119 and the first booster pump 2113 can work selectively. When the water pressure in the water production pipeline 211 is insufficient and the water pressure needs to be increased, the first booster pump 2113 will work, and the shut-off valve 2119 will be closed. The water filtered by the filter module 2111 will flow into the first-stage reverse osmosis water production structure 2112 through the first booster pump 2113. When the water pressure in the water production pipeline 211 is sufficient and the water pressure does not need to be increased, the first booster pump 2113 will not work, and the shut-off valve 2119 will switch to the open state. The water filtered by the filter module 2111 will flow into the first-stage reverse osmosis water production structure 2112 through the shut-off valve 2119. By switching between the shut-off valve 2119 and the first booster pump 2113, different usage requirements of the water production pipeline 211 can be met, thus improving the applicability of the water production equipment 2. Furthermore, the frequency of use of the first booster pump 2113 is reduced to decrease the power consumption of the water production equipment 2.

[0069] The present invention also proposes a water production system 100.

[0070] The water making system 100 according to an embodiment of the present invention includes a traction device 102 and a water making device 101 according to any of the above embodiments. The traction device 102 and the water making device 101 are connected by a connecting cable 103, and the outlet end of the water making pipeline 211 is connected to the traction device 102 through a water supply pipeline 104. The water supply pipeline 104 passes between the diversion structure 1 and the water making device 2.

[0071] In this embodiment, the water-generating device 101 itself has no motion characteristics. The water-generating device 101 is connected to the traction device 102 via a connecting cable 103, such as... Figure 1 As shown, the traction device 102 can be a ship, submarine, etc. After the traction device 102 moves, it can drag the connecting cable 103 to drive the water-making device 101 to move, thus allowing the water-making device 101 to move relative to the seawater. The outlet end of the water-making pipe 211 of the water-making device 101 is connected to the water supply pipe 104. The output end of the water supply pipe 104 is connected to the water storage chamber of the traction device 102, and at least a part of the water supply pipe 104 passes between the diversion structure 1 and the water-making device 2. The water supply pipe 104 can be connected to the connecting cable 103 to ensure the fixation of the water supply pipe 104.

[0072] When operating in the deep sea, after the water-generating device 101 submerges to a certain depth, the traction device 102 drags the water-generating device 101 relative to the seawater. Under dynamic pressure, the seawater enters the diversion structure 1, and the direction of the seawater flow is as follows: Figure 1 and Figure 2As shown by the middle arrow, the high-pressure seawater is then filtered, reverse osmosised, and discharged as concentrated brine to complete the water production process. The produced water is then transported back to the traction equipment 102 through the water supply pipeline 104, thus realizing deep-sea water production.

[0073] Furthermore, by selectively activating the first booster pump 2113 in the water production pipeline 211, different water pressure requirements in the water production pipeline 211 can be met. In this way, reverse osmosis water production can be achieved using high-pressure seawater in the deep sea, saving the operation of the first booster pump 2113, reducing water production power consumption, improving energy efficiency ratio, and reducing water production costs. Moreover, the first booster pump 2113 can be activated when the water pressure is insufficient to increase the water pressure and achieve reverse osmosis water production. Its structure is simple and has more application scenarios.

[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0075] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A water-making device, characterized in that, include: A diversion structure is provided, wherein a diversion cavity is formed within the diversion structure, and the diversion cavity is provided with an inlet area and an outlet area; the diversion structure is located at the bottom of the water making equipment; A water-making device, wherein a water-making chamber is formed inside the water-making device, and a water-making pipeline is provided in the water-making pipeline, wherein a filter module and a first-stage reverse osmosis water-making structure are arranged sequentially along the water flow direction; The water inlet cross-sectional area of ​​the water inlet area is designed to gradually decrease along the direction close to the water outlet area. The inlet of the water production pipeline is connected to the water inlet area. The water production pipeline is equipped with a selectively activated first booster pump between the filter module and the first-stage reverse osmosis water production structure. The drainage cavity also includes a central region connecting the water inlet area and the water outlet area, and the first-stage reverse osmosis water production structure is connected to a salt discharge path, which is connected to the central region. The water inlet cross-sectional area of ​​the water inlet area and the water outlet cross-sectional area of ​​the water outlet area are both larger than the flow cross-sectional area of ​​the central area. The cross-sectional area of ​​the water outlet region is designed to gradually increase in the direction away from the central region; The cross-sectional area of ​​the central region along the direction of water flow remains unchanged; Along the direction of water flow, the length of the inlet region is greater than the length of the middle region and less than the length of the outlet region.

2. The water-making device according to claim 1, characterized in that, The water production pipeline is also equipped with a secondary reverse osmosis water production structure, a water storage tank, and a post-treatment module, which are distributed sequentially along the water flow direction and located downstream of the primary reverse osmosis water production structure.

3. The water-making device according to claim 2, characterized in that, A second booster pump is provided between the water inlet area and the filter module; And / or, a third booster pump is provided between the primary reverse osmosis water production structure and the secondary reverse osmosis water production structure; And / or, a cleaning pipeline is provided between the water storage tank and the inlet end of the primary reverse osmosis water production structure, and the cleaning pipeline is equipped with a fourth booster pump.

4. The water-making device according to claim 1, characterized in that, The water production pipeline is also equipped with a shut-off valve between the filtration module and the first-stage reverse osmosis water production structure, and the shut-off valve is distributed in parallel with the first booster pump.

5. A water production system, characterized in that, The device includes a traction device and a water-making device according to any one of claims 1-4, wherein the traction device and the water-making device are connected by a connecting cable, and the outlet end of the water-making pipeline is connected to the traction device through a water supply pipeline, wherein the water supply pipeline passes between the diversion structure and the water-making device.

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