Floating body type wave energy and ocean current energy coupled seawater desalination device

Abstract

The invention discloses a floating body type wave energy coupling ocean current energy seawater desalination device, and relates to the technical field of ocean energy comprehensive development and utilization, the floating body type wave energy coupling ocean current energy seawater desalination device comprises an annular floating body, an ocean current energy utilization module is arranged below the annular floating body, a disc type compression module is arranged at the center of the annular floating body, and a wave energy utilization module is arranged above the disc type compression module; a gearbox, a booster pump and a reverse osmosis device are mounted on the annular floating body. Through cooperation of the disc type compression module, the wave energy utilization module and the ocean current energy utilization module, seawater pressurization and simultaneous capture of wave energy and ocean current energy are achieved, ocean energy is fully utilized for seawater desalination, and the mode is low in fresh water cost, efficient, capable of saving energy and free of pollution. The three modules are integrated through the annular floating body, rapid installation of the device is achieved, and compared with an existing fixed foundation pile type device, the installation cost is low, and the device can be installed at any time according to actual use requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of comprehensive development and utilization of marine energy, and specifically belongs to a floating wave energy coupled ocean current energy seawater desalination device. Background Art

[0002] At present, fossil energy still occupies a dominant position in the world's energy structure. With the continuous development of social production, the consumption of fossil energy has continued to increase, which has led to the depletion of fossil energy and the emergence of environmental problems such as exhaust gas emissions and water pollution. As a kind of renewable energy technology, ocean energy is favored by people for its clean, environmentally friendly, sustainable and stable characteristics. Ocean energy is mainly divided into wave energy, ocean current energy and tidal energy.

[0003] Most of the existing devices that use ocean energy to desalinate seawater can only capture wave energy or ocean current energy separately, and cannot capture wave energy and ocean current energy at the same time.

[0004] A few devices can capture wave energy and current energy simultaneously, but they all use fixed pile foundations, have high installation costs, and cannot be installed and used according to actual needs. Summary of the invention

[0005] In order to solve the problems that the existing devices that use ocean energy for seawater desalination cannot capture wave energy and current energy at the same time, the ocean energy cannot be fully utilized, and the fixed pile installation leads to high installation costs and cannot be installed and used according to actual use needs, the purpose of the present invention is to provide a floating wave energy coupled with current energy seawater desalination device.

[0006] The technical solution adopted by the present invention is as follows: a floating wave energy coupled ocean current energy desalination device, comprising an annular floating body, an ocean current energy utilization module is arranged below the annular floating body, a disc compression module is arranged at the center of the annular floating body, and a wave energy utilization module is arranged above the disc compression module; a gearbox, a booster pump and a reverse osmosis device are installed on the annular floating body, the output end of the ocean current energy utilization module and the output end of the wave energy utilization module are both connected to the input shaft of the gearbox, and the output shaft of the gearbox is connected to the pump shaft of the booster pump; the disc compression module is provided with a liquid inlet and a liquid outlet, the liquid outlet of the disc compression module is connected to the liquid inlet of the booster pump, and the liquid outlet of the booster pump is connected to the liquid inlet of the reverse osmosis device through a pipeline.

[0007] Furthermore, the disc-type compression module includes a movable shell installed on a ring-shaped float through an elastic rope, and a fixed disc located inside the movable shell, a pull rod is installed at the top center of the fixed disc, and an arc-shaped guide rail that slides with the pull rod is installed on the top surface of the movable shell; the liquid inlet of the disc-type compression module is arranged at the bottom of the movable shell, and a water outlet channel is also arranged on the fixed disc, the water inlet channel opening of the water outlet channel is connected to the interior of the movable shell, and the water outlet channel opening of the water outlet channel is the liquid outlet of the disc-type compression module.

[0008] Furthermore, a water inlet channel is provided on the fixed disc, the water inlet of the water inlet channel is connected with the liquid inlet of the disc compression module through a water inlet hose, and the water outlet of the water inlet channel is connected with the interior of the movable shell; the liquid outlet of the disc compression module is connected with a water outlet hose, and the water outlet hose passes through the side wall of the movable shell and is connected with the liquid inlet of the booster pump.

[0009] Furthermore, water inlet channels are provided on both sides of the fixed disc, and each water inlet channel is provided with two water outlets, which are respectively connected to the interior of the movable shell above and below the fixed disc; water outlet channels are provided on both sides of the fixed disc, and each water outlet channel is provided with two water inlet channel openings, which are respectively connected to the interior of the movable shell above and below the fixed disc.

[0010] Furthermore, a water outlet one-way valve is installed at the two water outlets of each water inlet channel, and a water inlet one-way pressure-limiting valve is installed at the two water inlet ports of each water outlet channel.

[0011] Furthermore, a stretchable corrugated plate is installed in the middle of the movable shell, and the two ends of the stretchable corrugated plate are respectively connected to the inner top surface and the inner bottom surface of the movable shell to divide the internal space of the movable shell into two parts, and the middle part of the fixed disc passes through the stretchable corrugated plate.

[0012] Furthermore, the inner bottom surface of the arc-shaped guide rail is provided with a T-shaped slide groove with closed ends, and the upper end of the pull rod is matched and slidable in the T-shaped slide groove.

[0013] Furthermore, the wave energy utilization module includes a sealing cover installed on the top of the movable shell, and a main shaft located in the sealing cover and rotatably connected to the center of the top of the movable shell through a one-way bearing, and the upper end of the main shaft passes through the top of the sealing cover and is connected to the gearbox through a universal joint coupling. A ball pendulum installed on the main shaft is also provided in the sealing cover.

[0014] Furthermore, the ocean current energy utilization module includes a guide pipe and a turbine located in the guide pipe. The central axis of the turbine is connected to the input shaft of the gearbox through a universal joint coupling. The guide pipe is installed on the annular float through a connecting rod. The outer walls on both sides of the guide pipe are recessed inward to form an arc-shaped guide surface. A diverter cone is provided in the middle of the arc-shaped guide surface, and triangular cones arranged equidistantly are provided on one side of the diverter cone.

[0015] Furthermore, a channel which first gradually contracts and then expands is provided in the guide tube, and the turbine is located at the narrowest part of the channel.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The floating wave energy coupled ocean current energy desalination device realizes seawater pressurization and simultaneous capture of wave energy and ocean current energy through the cooperation of a disc compression module, a wave energy utilization module, and an ocean current energy utilization module, so as to fully utilize ocean energy for seawater desalination. This method has low fresh water cost, high efficiency, energy saving, and no pollution.

[0017] The seawater on the sea surface is initially compressed by the disc compression module, sent to the booster pump for secondary compression, and finally sent to the reverse osmosis device for seawater desalination.

[0018] A wave energy utilization module is set on the disc compression module to absorb the remaining kinetic energy after the seawater is compressed by the disc compression module. The wave energy utilization module transfers the kinetic energy to the gearbox, and the gearbox drives the booster pump to perform secondary compression of the seawater and transport it to the reverse osmosis device for seawater desalination.

[0019] By setting up an ocean current energy utilization module, the impact force of the seawater flowing under the sea surface that continuously impacts the ocean current energy utilization module is converted into mechanical energy and transmitted to the gearbox. The gearbox then transmits the kinetic energy to the booster pump, driving the booster pump to work, perform secondary compression of the seawater, and transport it to the reverse osmosis device for seawater desalination.

[0020] The three modules are integrated by adopting an annular floating body to realize the rapid installation of the device. Compared with the existing fixed pile type, the installation cost is low and the structural design is simple, which is convenient for the staff to quickly install and operate, and can be installed as needed according to actual use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention; Figure 2 for Figure 1 Axonometric view of Figure 3 for Figure 1 A partial schematic diagram of the Figure 4 for Figure 1 A top view of the mid-ocean current energy utilization module; Figure 5 for Figure 2 A side view of the fixed disc inside the movable housing; Figure 6 for Figure 5 AA section view; Figure 7 for Figure 2 A schematic diagram of the three-dimensional structure of the movable housing and the interior of the sealing cover; Figure 8 for Figure 7 Side view of Fig. 9 for Figure 1 A working state diagram of the movable shell in the middle disc compression module moving upward; Fig.10 for Figure 1 Working state diagram of the movable shell moving downward in the mid-disc compression module. Description of the drawings: 1. Wave energy utilization module; 101. Main shaft; 102. Sealing cover; 103. Ball pendulum; 2. Disc compression module; 201. Movable shell; 202. Fixed disc; 203. Stretchable corrugated plate; 204. Pull rod; 205. Arc guide rail; 206. Water inlet hose; 207. Water outlet hose; 208. Water inlet; 209. Water outlet channel; 210. Water inlet channel; 211. Water outlet channel; 212. One-way valve; 213. One-way pressure limiting valve; 214. Water outlet; 215. Water inlet channel.

[0024] 3. Elastic rope; 4. Annular floating body; 401. Gearbox; 402. Booster pump; 403. Reverse osmosis device; 5. Ocean current energy utilization module; 501. Connecting rod; 502. Guide pipe; 503. Curved guide surface; 504. Diverter cone; 505. Triangular cone; 506. Turbine. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Combine the following Figure 1-Figure 10 The present invention is described in detail.

[0029] Example like Figure 1 As shown, a floating wave energy coupled sea current energy desalination device comprises an annular floating body 4, a sea current energy utilization module 5 is arranged below the annular floating body 4, a disc type compression module 2 is arranged at the center of the annular floating body 4, and a wave energy utilization module 1 is arranged above the disc type compression module 2. A gearbox 401, a booster pump 402, and a reverse osmosis device 403 are installed on the annular floating body 4, and are preferably arranged in the body groove of the annular floating body 4.

[0030] The output end of the ocean current energy utilization module 5 and the output end of the wave energy utilization module 1 can be connected to the input shaft of the gearbox 401 through a transmission shaft and a universal joint coupling, and the output shaft of the gearbox 401 is connected to the pump shaft of the booster pump 402 through a transmission shaft. The annular buoy 4 allows the wave energy utilization module 1 and the disc compression module 2 of the device to float on the sea surface, while the ocean current energy utilization module 5 is located below the sea surface.

[0031] The disc-type compression module 2 on the sea surface preliminarily pressurizes the seawater under the fluctuation of waves. During the compression process, the wave energy utilization module 1 installed on the disc-type compression module 2 also moves with the disc-type compression module 2 under the fluctuation of waves on the sea surface. The wave energy utilization module 1 transfers the remaining kinetic energy after compressing the seawater to the gearbox 401, and the gearbox 401 transfers the kinetic energy to the booster pump 402, providing further kinetic energy for the booster pump 402.

[0032] Similarly, the seawater flowing under the sea surface will continuously impact the ocean current energy utilization module 5 , and the ocean current energy utilization module 5 converts the impact force into mechanical energy and transmits it to the gearbox 401 , and the gearbox 401 transmits the kinetic energy to the boosting pump 402 , providing kinetic energy for the boosting pump 402 .

[0033] It is worth noting that in the gearbox 401, two input shafts with different rotation speeds can be set, and the two input shafts are connected to the output shaft through different gear ratios. The rotation speed of the output shaft will be the weighted average of the two gear ratios, and the weight is determined by the torque transmitted by each. The final rotation speed of the output shaft is the composite result of the rotation speeds transmitted by the two input shafts through their respective gears. That is, the ocean current energy utilization module 5 and the wave energy utilization module 1 are respectively connected to the input shaft of the gearbox 401 in a transmission manner, thereby realizing the effective transmission of kinetic energy to the output shaft, and the output shaft of the gearbox 401 is transmitted to the pump shaft of the booster pump 402.

[0034] The disc-type compression module 2 is provided with a liquid inlet and a liquid outlet. The liquid outlet of the disc-type compression module 2 is connected to the liquid inlet of the booster pump 402. The liquid outlet of the booster pump 402 is connected to the liquid inlet of the reverse osmosis device 403 through a pipeline. The water on the sea surface enters the inside of the disc-type compression module 2 through the liquid inlet. The disc-type compression module 2 performs initial pressurization on the seawater, and after the pressurization, it is delivered to the booster pump 402 for secondary pressurization. After the seawater is pressurized, it enters the reverse osmosis device 403 for seawater desalination.

[0035] It is worth pointing out that in actual use, an anchor chain is installed between the annular buoy 4 and the seabed, so as to realize the operation of the device on the seabed in a certain area. At the same time, the models of the gearbox 401, the booster pump 402, and the reverse osmosis device 403 are not specifically limited here, and they can meet the actual use requirements. The discharge of concentrated brine from the seawater desalination part of this device can be discharged by itself due to its own high-pressure characteristics. Of course, since the concentrated brine has a higher pressure, it can be utilized by a simple residual pressure recovery device. Due to space limitations, it will not be described in detail here.

[0036] By installing the wave energy utilization module 1 on the disc compression module 2, the wave energy can be captured and the seawater can be effectively compressed, which plays a role of initial pressurization and effectively pressurizes the subsequent seawater desalination. After the pressurization is completed, the booster pump 402 is used for secondary pressurization.

[0037] like Figure 2 and Figure 7 As shown, the disc compression module 2 includes a movable shell 201 installed on the annular float 4 through an elastic rope 3, and a fixed disc 202 located inside the movable shell 201, a pull rod 204 is installed at the top center of the fixed disc 202, and an arc guide rail 205 that slides with the pull rod 204 is installed on the top surface of the movable shell 201.

[0038] It is worth noting that a water storage chamber is provided inside the movable shell 201, and the longitudinal cross-sectional area of ​​the water storage chamber gradually increases from the middle to both sides, and both sides of the water storage chamber are fan-shaped cavities symmetrically distributed with the middle of the water storage chamber as the center axis.

[0039] like Figure 2 As shown, four elastic ropes 3 are provided, but in actual use, the staff can arrange them according to the actual situation, and are not limited to four elastic ropes 3. The function of the elastic rope 3 is not only to fix the disc-type compression module 2 on the annular floating body 4, but also to adjust the horizontal movement of the disc-type compression module 2. This is because the elastic rope 3 has a certain elasticity, so it does not affect the movement of the disc-type compression module 2 under the action of waves, and can also limit it to the center position of the annular floating body 4 to prevent the disc-type compression module 2 from hitting the annular floating body 4.

[0040] like Figure 5 As shown, preferably, the upper end of the pull rod 204 on the fixed disc 202 is spherical, and the upper end of the pull rod 204 can slide along the T-shaped slot on the inner bottom surface of the arc-shaped guide rail 205, so that the fixed disc 202 can be relatively fixed in the movable housing 201 through the pull rod 204 and will not fall due to gravity. In addition, to prevent the pull rod 204 from sliding out of the arc-shaped guide rail 205, the two ends of the T-shaped slot can be blocked. Of course, the two ends of the T-shaped slot can also be not sealed, but the two ends can be reduced to ensure that the pull rod 204 does not slide out. Under the action of its own gravity, the fixed disc 202 may not move or move slightly. Therefore, when the movable shell 201 moves under the action of sea waves, relative movement occurs between the movable shell 201 and the fixed disc 202. The upper space and the lower space between the two sides of the movable shell 201 and the fixed disc 202 are constantly changing, thereby forming a pressure difference, compressing the seawater entering the movable shell 201 into the water outlet channel 211.

[0041] like Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, the liquid inlet of the disc-type compression module 2 is arranged at the bottom of the movable housing 201, so that seawater can enter the movable housing 201 conveniently. A water outlet channel 211 is also arranged on the fixed disc 202, and a water inlet channel opening 215 of the water outlet channel 211 is connected to the inside of the movable housing 201, and a water outlet channel opening 209 of the water outlet channel 211 is the liquid outlet of the disc-type compression module 2, so that the seawater inside the disc-type compression module 2 can be transported to the liquid inlet of the booster pump 402 through the water outlet channel 211.

[0042] A water inlet channel 210 is also provided on the fixed disc 202. The water inlet port 208 of the water inlet channel 210 is connected to the liquid inlet port of the disc compression module 2 through the water inlet hose 206. The water outlet port 214 of the water inlet channel 210 is connected to the interior of the movable shell 201. The liquid outlet of the disc compression module 2 is connected to the water outlet hose 207. The water outlet hose 207 passes through the side wall of the movable shell 201 and is connected to the liquid inlet port of the booster pump 402.

[0043] Pushed by the waves, the movable shell 201 moves, and the gap space between the movable shell 201 and the fixed disc 202 inside it changes. The larger the gap space, the smaller the pressure, and the smaller the gap space, the larger the pressure, thereby forming a pressure difference. The external seawater is sucked in from the liquid inlet at the bottom of the movable shell 201, flows into the water inlet 208 through the water inlet hose 206, enters the water inlet channel 210, and then flows into the interior of the movable shell 201 from the water outlet 214 of the water inlet channel 210. When the movable shell 201 moves, the seawater inside it is pressed into the water inlet channel port 215 of the water outlet channel 211 through the differential pressure, and then transported to the water outlet hose 207 through the water outlet channel port 209 of the water outlet channel 211, and finally transported to the booster pump 402 through the water outlet hose 207, so as to be transported to the reverse osmosis device 403 through the booster pump 402.

[0044] like Figure 5 and Figure 6 As shown, water inlet channels 210 are provided on both sides of the fixed disc 202, and each water inlet channel 210 is provided with two water outlets 214, and the two water outlets 214 are respectively connected to the interior of the movable shell 201 above and below the fixed disc 202, so that when the movable shell 201 moves, the external seawater can alternately enter the movable shell 201 above or below the fixed disc 202 according to the change in pressure; water outlet channels 211 are provided on both sides of the fixed disc 202, and each water outlet channel 211 is provided with two water inlet channel openings 215, and the two water inlet channel openings 215 are respectively connected to the interior of the movable shell 201 above and below the fixed disc 202, so that when the movable shell 201 moves, the seawater in the movable shell 201 can alternately enter the water outlet channel 211 according to the change in pressure.

[0045] like Figure 6As shown, each water inlet channel 210 is equipped with a water outlet one-way valve 212 at its two water outlets 214, and each water outlet channel 211 is equipped with a water inlet one-way pressure-limiting valve 213 at its two water inlet channel ports 215. The one-way pressure-limiting valve 213 at the water inlet channel ports 215 allows the seawater entering the fixed disc 202 to alternately change in the gap space between 201 and 202 to form a pressure difference, and the seawater can be discharged from the one-way pressure-limiting valve 213 only when a certain pressure is reached.

[0046] It is worth noting that the one-way pressure-limiting valve 213 will only open when a certain pressure is reached, while the one-way valve 212 does not have this function. The specific model will not be introduced in detail here, and it is sufficient to meet the actual use requirements.

[0047] like Figure 7 and Figure 8 As shown, a stretchable corrugated plate 203 is installed in the middle of the movable shell 201, and the two ends of the stretchable corrugated plate 203 are respectively connected to the inner top surface and the inner bottom surface of the movable shell 201 to divide the internal space of the movable shell 201 into two parts. The middle part of the fixed disc 202 passes through the stretchable corrugated plate 203.

[0048] It is worth noting that the stretchable corrugated plate 203 can be as follows Figure 8 As shown, two groups are provided. The material of the stretchable corrugated plate 203 is PVC. The stretchable corrugated plate 203 is used to divide the internal space of the movable shell 201 into two spaces on the left and right, so that the two spaces on the left and right can be completely in and out of water separately. At the same time, due to the stretchable characteristics, the normal operation of the movable shell 201 is not affected.

[0049] like Fig. 9 As shown, when seawater surges in from the right, the wave crest pushes to the left half of the disc compression module 2, and the left half of the movable shell 201 moves upward with the center of the fixed disc 202 as the center of the circle under the action of the wave crest. The fixed disc 202 remains relatively fixed due to inertia, so that the seawater in the gap between the fixed disc 202 and the movable shell 201 in the lower left and upper right parts is compressed, while the gap between the fixed disc 202 and the movable shell 201 in the upper left and lower right parts increases, the pressure decreases, and negative pressure is generated.

[0050] At this time, when the pressure difference inside the movable shell 201 changes, seawater is sucked into the fixed disc 202 from the liquid inlet at the bottom of the movable shell 201, that is, it enters the water inlet channel 210 through the water inlet hose 206 and the water inlet 208, and is discharged from the water outlet 214 connected to the upper left side of the movable shell 201 along the water inlet channel 210 through the one-way valve 212, and enters the gap between the upper left fixed disc 202 and the movable shell 201. At the same time, since the seawater in the gap between the lower left fixed disc 202 and the movable shell 201 is compressed, when a certain pressure is reached, the one-way pressure limiting valve 213 at the water inlet channel opening 215 of the lower left water outlet channel 211 opens, and the seawater enters the water outlet channel 211, and is then transported to the water outlet hose 207 through the water outlet channel opening 209 on the side wall of the fixed disc 202, thus completing the primary compression of the seawater, and finally transported to the booster pump 402 through the water outlet hose 207 for secondary compression of the seawater.

[0051] Since the movable shell 201 is a whole, when the left half moves upward with the center of the fixed disc 202 as the center, the right half is subjected to a downward torque and moves downward, and the effect of the diagonal gap is the same as that of the left half.

[0052] At this time, when the pressure difference inside the movable shell 201 changes, seawater is sucked into the fixed disc 202 from the bottom liquid inlet of the movable shell 201, that is, it enters the water inlet channel 210 through the water inlet hose 206 and the water inlet 208, and is discharged from the water outlet 214 connected to the lower right side of the movable shell 201 along the water inlet channel 210 through the one-way valve 212, and enters the gap between the lower right fixed disc 202 and the movable shell 201. At the same time, since the seawater in the gap between the upper right fixed disc 202 and the movable shell 201 is compressed, when a certain pressure is reached, the one-way pressure limiting valve 213 at the water inlet channel opening 215 of the upper right water outlet channel 211 opens, and the seawater enters the water outlet channel 211, and then is transported to the water outlet hose 207 through the water outlet channel opening 209 on the side wall of the fixed disc 202, so that the seawater is compressed once, and finally transported to the booster pump 402 through the water outlet hose 207 for secondary compression of the seawater.

[0053] like Fig.10 As shown, when the seawater continues to flow forward, the wave crest advances to the right half of the disc compression module 2, and the right half of the movable shell 201 moves upward with the center of the fixed disc 202 as the center of the circle under the action of the wave crest. The fixed disc 202 remains relatively fixed due to inertia, so that the seawater in the gap between the fixed disc 202 and the movable shell 201 in the lower right and upper left parts is compressed, while the gap space between the fixed disc 202 and the movable shell 201 in the upper right and lower left parts is increased, the pressure is reduced, and negative pressure is generated.

[0054] At this time, when the pressure difference inside the movable shell 201 changes, seawater is sucked into the fixed disc 202 from the bottom liquid inlet of the movable shell 201, that is, it enters the water inlet channel 210 through the water inlet hose 206 and the water inlet 208, and is discharged from the water outlet 214 connected to the upper right side of the movable shell 201 along the water inlet channel 210 through the one-way valve 212, and enters the gap between the upper right fixed disc 202 and the movable shell 201. At the same time, since the seawater in the gap between the lower right fixed disc 202 and the movable shell 201 is compressed, when a certain pressure is reached, the one-way pressure limiting valve 213 at the water inlet channel opening 215 of the lower right water outlet channel 211 opens, and the seawater enters the water outlet channel 211, and then is transported to the water outlet hose 207 through the water outlet channel opening 209 on the side wall of the fixed disc 202, so that the seawater is compressed once, and finally transported to the booster pump 402 through the water outlet hose 207 for secondary compression of the seawater.

[0055] Since the movable shell 201 is a whole, when the right half moves upward with the center of the fixed disc 202 as the center, the left half is subjected to a downward torque and moves downward, and the effect of the gap at the diagonal position is the same as that of the right half.

[0056] At this time, when the pressure difference inside the movable shell 201 changes, seawater is sucked into the fixed disc 202 from the bottom liquid inlet of the movable shell 201, that is, it enters the water inlet channel 210 through the water inlet 208 through the water inlet hose 206, and is discharged from the water outlet 214 connected to the lower left side of the movable shell 201 through the one-way valve 212 along the water inlet channel 210, and enters the gap between the lower left fixed disc 202 and the movable shell 201. At the same time, since the seawater in the gap between the upper left fixed disc 202 and the movable shell 201 is compressed, when a certain pressure is reached, the one-way pressure limiting valve 213 at the water inlet channel opening 215 of the upper left water outlet channel 211 opens, and the seawater enters the water outlet channel 211, and is then transported to the water outlet hose 207 through the water outlet channel opening 209 on the side wall of the fixed disc 202, thus completing the primary compression of the seawater, and finally transported to the booster pump 402 through the water outlet hose 207 for secondary compression of the seawater.

[0057] like Figure 2 , Figure 7As shown, the wave energy utilization module 1 includes a sealing cover 102 installed on the top of the movable shell 201, and a main shaft 101 located in the sealing cover 102 and rotatably connected to the top center of the movable shell 201 through a one-way bearing. The upper end of the main shaft 101 passes through the top of the sealing cover 102 and is connected to the gearbox 401 through a universal joint coupling. A ball pendulum 103 installed on the main shaft 101 is also provided in the sealing cover 102. A sealing ring can be provided at the contact between the main shaft 101 and the sealing cover 102 to prevent seawater from flowing into the sealing cover 102 from the gap between the two. The sealing cover 102 can be fixed on the movable shell 201 by welding, which can protect the internal main shaft 101 and prevent seawater from entering the sealing cover 102 and affecting its normal operation.

[0058] When the movable shell 201 moves as a whole with the waves, the ball pendulum 103 in the sealing cover 102 performs directional circular rotation with the movement of the movable shell 201, and the ball pendulum 103 transmits the kinetic energy of the directional circular rotation to the main shaft 101. The main shaft 101 drives the gearbox 401 to rotate through the universal joint coupling and the transmission shaft. The output shaft of the gearbox 401 then drives the pump shaft of the booster pump 402 to rotate, so that the booster pump 402 starts to work to perform secondary pressurization on the seawater in the movable shell 201. The pressurized seawater is transported to the reverse osmosis device 403 for seawater desalination.

[0059] It should be noted that the size design of the disc-type compression module 2 and the wave energy utilization module 1 above it should take into account the actual situation of sea waves. If the sea water at the right half of the disc-type compression module 2 is at the crest and the sea water at the left half is at the trough, the wave energy collection effect will be best.

[0060] like Figure 2 , Figure 4 As shown, the ocean current energy utilization module 5 includes a guide tube 502, in which a channel is provided which gradually contracts and then expands, and a turbine 506 is provided at the narrowest part of the channel. The turbine 506 is connected to the gearbox 401 through a universal joint coupling, and the guide tube 502 is installed on the annular buoy 4 through a connecting rod 501. Figure 1 As shown, four connecting rods 501 are provided, but in actual use, in order to ensure its safety and stability, the number can be increased appropriately and is not limited to four.

[0061] When seawater flows along the extension direction of the guide tube 502, the seawater enters the guide tube 502 and passes through the gradually contracting guide channel. The flow rate of the seawater gradually increases until it flows to the narrowest part of the guide channel, pushing the turbine 506 to rotate. Then the turbine 506 drives the input shaft of the gearbox 401 to rotate through the rotating shaft and the universal joint coupling. The output shaft of the gearbox 401 drives the pump shaft of the booster pump 402 to rotate, so that the booster pump 402 starts to work to perform secondary pressurization on the seawater in the movable shell 201. The pressurized seawater is transported to the reverse osmosis device 403 for seawater desalination.

[0062] The two sides of the guide tube 502 are arc-shaped, forming an arc-shaped guide surface 503. A diverter cone 504 is provided in the middle of the arc-shaped guide surface 503, and the diverter cone 504 divides the arc-shaped guide surface 503 into two parts, left and right. One side of the diverter cone 504 is provided with equidistantly arranged triangular pyramids 505, that is, a part of the arc-shaped guide surface 503 is provided with a plurality of equidistantly arranged triangular pyramids 505. The arc-shaped guide surfaces 503 on both sides are provided with triangular pyramids 505 on the left or right part at the same time, and cannot be one on the left and one on the right.

[0063] When the flow direction of seawater does not flow along the extension direction of the guide tube 502, the seawater will impact the arc guide surfaces 503 on both sides of the guide tube 502. When the seawater rushes vertically toward the arc guide surface 503, the seawater will be diverted by the diverter cone 504 on the arc guide surface 503, so as to flow along both sides of the arc guide surface 503. Since there is a raised triangular cone 505 on one side of the arc guide surface 503, the friction force it generates on the seawater is greater than that on the other side. Due to the interaction of forces, the guide tube 502 as a whole will be subjected to a circumferential force to cause it to rotate horizontally. When the extension direction of the guide tube 502 rotates to be consistent with the direction of the sea current, since the arc guide surfaces 503 on the left and right sides are not directly impacted by the sea current, and the circumferential forces generated by the friction of the sea water offset each other, the direction of the guide tube 502 tends to be stable. At this time, the extension direction of the guide tube 502 is consistent with the direction of the sea current, and the sea current energy can be utilized to the maximum extent. The guide tube 502 is connected to the annular float 4 through the connecting rod 501, and the annular float 4 is connected to the disc-type compression module 2 through the elastic rope 3. When the guide tube 502 is impacted by the ocean current and performs self-direction adjustment, it will first drive the annular float 4, and then drive the disc-type compression module 2 to adjust its direction.

[0064] Therefore, no matter how the flow direction of the seawater changes, the wave energy utilization module 1, the disc compression module 2 and the ocean current energy utilization module 5 always remain in the direction of best utilizing waves and ocean currents.

[0065] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A floating wave energy coupled with ocean current energy desalination device, characterized in that: The invention comprises an annular floating body (4), wherein an ocean current energy utilization module (5) is provided below the annular floating body (4), a disc-type compression module (2) is provided at the center of the annular floating body (4), and a wave energy utilization module (1) is provided above the disc-type compression module (2); a gearbox (401), a booster pump (402) and a reverse osmosis device (403) are installed on the annular floating body (4); the output end of the ocean current energy utilization module (5) and the output end of the wave energy utilization module (1) are both drivingly connected to the input shaft of the gearbox (401), and the output shaft of the gearbox (401) is drivingly connected to the pump shaft of the booster pump (402); the disc-type compression module (2) is provided with a liquid inlet and a liquid outlet, the liquid outlet of the disc-type compression module (2) is communicated with the liquid inlet of the booster pump (402), and the liquid outlet of the booster pump (402) is connected to the liquid inlet of the reverse osmosis device (403) through a pipeline.

2. The floating wave energy coupled ocean current energy desalination device according to claim 1 is characterized by: The disc-type compression module (2) comprises a movable shell (201) mounted on an annular float (4) via an elastic rope (3), and a fixed disc (202) located inside the movable shell (201); a pull rod (204) is mounted at the top center of the fixed disc (202); and an arc-shaped guide rail (205) slidably engaged with the pull rod (204) is mounted on the top surface of the movable shell (201); a liquid inlet of the disc-type compression module (2) is arranged at the bottom of the movable shell (201); a water outlet channel (211) is also arranged on the fixed disc (202); a water inlet channel opening (215) of the water outlet channel (211) is connected to the inside of the movable shell (201), and a water outlet channel opening (209) of the water outlet channel (211) is a liquid outlet of the disc-type compression module (2).

3. The floating wave energy coupled ocean current energy desalination device according to claim 2 is characterized by: The fixed disc (202) is also provided with a water inlet channel (210); the water inlet (208) of the water inlet channel (210) is connected to the liquid inlet of the disc-type compression module (2) via a water inlet hose (206); the water outlet (214) of the water inlet channel (210) is connected to the interior of the movable housing (201); the liquid outlet of the disc-type compression module (2) is connected to a water outlet hose (207); the water outlet hose (207) passes through the side wall of the movable housing (201) and is connected to the liquid inlet of the booster pump (402).

4. The floating wave energy coupled ocean current energy desalination device according to claim 3 is characterized by: Water inlet channels (210) are provided on both sides of the fixed disc (202), and each water inlet channel (210) is provided with two water outlets (214), and the two water outlets (214) are respectively connected to the interior of the movable shell (201) above and below the fixed disc (202); water outlet channels (211) are provided on both sides of the fixed disc (202), and each water outlet channel (211) is provided with two water inlet channel openings (215), and the two water inlet channel openings (215) are respectively connected to the interior of the movable shell (201) above and below the fixed disc (202).

5. The floating wave energy coupled ocean current energy desalination device according to claim 4 is characterized by: A water outlet one-way valve (212) is installed at the two water outlets (214) of each water inlet channel (210), and a water inlet one-way pressure-limiting valve (213) is installed at the two water inlet channel ports (215) of each water outlet channel (211).

6. The floating wave energy coupled ocean current energy desalination device according to claim 2 is characterized by: A stretchable corrugated plate (203) is installed in the middle of the movable shell (201), and two ends of the stretchable corrugated plate (203) are respectively connected to the inner top surface and the inner bottom surface of the movable shell (201) to divide the internal space of the movable shell (201) into two parts. The middle of the fixed disc (202) passes through the stretchable corrugated plate (203).

7. The floating wave energy coupled ocean current energy desalination device according to claim 2 is characterized by: The inner bottom surface of the arc-shaped guide rail (205) is provided with a T-shaped slide groove with closed ends, and the upper end of the pull rod (204) is matched and slidable in the T-shaped slide groove.

8. The floating wave energy coupled ocean current energy desalination device according to claim 2 is characterized by: The wave energy utilization module (1) comprises a sealing cover (102) mounted on the top of a movable shell (201), and a main shaft (101) located inside the sealing cover (102) and rotatably connected to the top center of the movable shell (201) via a one-way bearing, wherein the upper end of the main shaft (101) penetrates the top of the sealing cover (102) and is transmission-connected to a gearbox (401) via a universal joint coupling, and a ball pendulum (103) mounted on the main shaft (101) is also provided inside the sealing cover (102).

9. The floating wave energy coupled ocean current energy desalination device according to claim 1, characterized in that: The ocean current energy utilization module (5) comprises a flow guide pipe (502) and a turbine (506) located in the flow guide pipe (502); the central axis of the turbine (506) is drivingly connected to the input shaft of the gearbox (401) via a universal joint coupling; the flow guide pipe (502) is mounted on the annular floating body (4) via a connecting rod (501); the outer walls on both sides of the flow guide pipe (502) are recessed inwards to form an arc-shaped flow guide surface (503); a diverter cone (504) is provided in the middle of the arc-shaped flow guide surface (503); and triangular cones (505) arranged equidistantly are provided on one side of the diverter cone (504).

10. The floating wave energy coupled ocean current energy desalination device according to claim 9, characterized in that: The guide tube (502) is provided with a channel which first gradually contracts and then expands, and the turbine (506) is located at the narrowest part of the channel.

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