Water purification, heat collection and temperature raising system
The system addresses the challenges of hypoxic water masses and microplastic accumulation by circulating oxygen-rich water from the upper layer to the lower layer using wave and tidal power, while also recovering microplastics and utilizing collected heat as an energy source.
Patent Information
- Application Number
- JP2023207457
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-06-19
- Estimated Expiration
- 2043-12-08
AI Technical Summary
The formation of hypoxic water masses and low-oxygen sea areas in lakes and/or bays and oceans due to stratification caused by temperature differences, along with the accumulation of microplastics and the underutilization of heat in the upper layer as an energy source.
A system that collects heat from the upper layer of water bodies, lowers the temperature to increase water density, and uses wave and tidal power to circulate oxygen-rich water from the upper layer to the lower layer, while recovering microplastics and compressing the collected heat for energy utilization.
This solution effectively addresses the issue of hypoxic water masses by increasing oxygen levels in the lower layers, recovers microplastics, and utilizes the collected heat as a viable energy source, thereby improving water quality and energy efficiency.
Smart Images

Figure 2025091912000001_ABST
Abstract
Description
Technical Field
[0001] Water quality environment and energy fields
Background Art
[0002] When the water temperature in the upper layer of lakes and / or bays and oceans rises due to solar heat or the like, the density of water decreases, making it difficult to mix with the denser water in the lower layer. As a result, it becomes difficult to supply oxygen-rich water in the upper layer to the lower layer due to gas exchange between the atmosphere and the water surface and waves. This leads to a decrease in the amount of oxygen in the water, the formation of hypoxic water masses and low-oxygen sea areas, and the addition of the microplastic problem, raising concerns about the destruction of the ecosystem due to water quality deterioration. In addition, the heat accumulated in the upper layer also becomes a factor in disasters and has not been effectively utilized as an energy source.
Summary of the Invention
Problems to be Solved by the Invention
[0003] Improving the water quality environment due to the formation of hypoxic water masses and low-oxygen sea areas in lakes and / or bays and oceans and the microplastic problem, and effectively utilizing the heat accumulated in the upper layer as energy are the problems.
Means for Solving the Problems
[0004] When the water temperature in the upper layer of lakes and / or bays and oceans rises due to solar heat or the like, the density of water decreases, but it contains a large amount of dissolved oxygen. By collecting heat and lowering the temperature, the density increases. Utilizing wave power and tidal power, water with a large amount of dissolved oxygen is sent to the lower layer to increase the amount of dissolved oxygen in the lower layer. In the process, microplastics are recovered, and the collected heat is compressed and heated to be effectively utilized as an energy source.
Effects of the Invention
[0005] Eliminating hypoxic water masses and low-oxygen sea areas in lakes and / or bays and oceans and recovering microplastics improve the water quality environment, and the collected heat is compressed and heated, enabling effective utilization as an energy source.
Brief Description of the Drawings
[0006]
Figure 1
Figure 2
Figure 3
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Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Modes for Carrying Out the Invention
[0007] With reference to FIGS. 1 to 9, the details of the embodiments of the present invention will be described. It should be noted that the following embodiments are examples of the present invention and are not intended to limit the scope of the present invention, its applications, or its uses.
[0008] The water purification and heat collection temperature raising system shown in FIGS. 1 and 2 includes a system main body A, a unit & control section B, a water supply hose C, a microplastic collection unit D, and a wave power - hydraulic conversion unit E. The system main body A has a first casing a1, a second casing a2, backflow prevention valves a3 at several locations on the outer periphery, dozens of heat pipes a4, and a water supply pump a5.
[0009] The water purification and heat collection and temperature raising system shown in FIGS. 1 and 2 has a unit & control section B on the upper surface of the system main body A, a water supply hose C at the lowermost part, a microplastic collection unit D from the lower part to the upper side part, and wave power and hydraulic conversion units E arranged at several locations on the outer periphery. The water purification and heat collection and temperature raising system has a fixed type and a floating type. The floating type is held in place, for example, by driving an anchor into the seabed and mooring with a wire rope.
[0010] The first casing a1 of the system main body A shown in FIG. 2 is funnel-shaped, and its upper surface is connected and sealed to the second casing a2. Dozens of heat pipes a4 for heat collection are vertically installed at the bottom a2a of the second casing, check valves a3 are provided at several locations on the outer periphery, and a water supply pump a5 is installed at the center.
[0011] The second casing a2 of the system main body A shown in FIG. 2 is formed in a double cylinder shape, the inside of the inner cylinder communicates with the first casing a1, a water supply pump a5 is installed at the center, and the upper surface of the second casing a2 is sealed with a cap plate a2b.
[0012] A heat exchange chamber a2c is provided between the first baffle plate a2f and the second baffle plate a2i of the second casing a2, and the heat pipe a4 installed at the bottom a2a of the second casing, the first vent hole a2h and the second vent hole a2k communicate with each other.
[0013] Water with a large amount of dissolved oxygen, high water temperature, and low density in the upper layer of lakes and / or coastal areas and the ocean flows through the wave power and tidal power to open the check valve a3 on the upstream side and flow into the inside of the first casing a1. Since the check valve a3 on the downstream side does not open, it flows toward the water supply hose C. The water that has flowed in is heated by the heat pipe a4, and the water with the lowered temperature has a higher density. With the supplement of the water supply pump a5, it is sent to the water supply hose C through the cyclone filter d1 and discharged to the lower layer with a small amount of dissolved oxygen, improving the oxygen-depleted water mass and low-oxygen sea area.
[0014] The outlet of the expansion valve b1c of the heat pump unit b1 of the unit & control unit B shown in Fig. 2 is connected to the bottom a2a of the second casing a2 of the second casing and the first chamber a2g partitioned by the first baffle plate a2f by the first pipe a2d. The first baffle plate a2f is provided with a first vent hole a2h so that the heat pipe a4 passes through and gas passes through around the heat pipe a4.
[0015] The second chamber a2j partitioned by the cap plate a2b of the second casing a2 and the second baffle plate a2i is connected to the inlet of the compressor b1e of the heat pump unit b1 of the unit & control unit B by the second pipe a2e. The second baffle plate a1i is provided with a second vent hole a2k so that gas passes through around the heat pipe a4. That is, the heat pipe a4 does not pass through.
[0016] The heat medium cooled from the outlet of the expansion valve b1c of the heat pump unit b1 of the unit & control unit B shown in Fig. 2 flows through the first pipe a2d, fills the first chamber a2g, enters the heat exchange chamber a2c from the first vent hole a2h provided in the first baffle plate a2f, and flows along the outer periphery of the heat dissipation part of the heat pipe a4 toward the second vent hole a2k provided in the second baffle plate a2i. While efficiently collecting heat and rising in temperature, the heat medium enters the second chamber a2j.
[0017] The heat medium that has risen in temperature flows through the second pipe a2e, is compressed and heated by the compressor b1a of the heat pump unit b1, and is supplied to the heat exchanger b1b. The supplied heat medium exchanges heat with the heat medium in gas or liquid form and is effectively utilized as an energy source. After heat exchange, the heat medium becomes low temperature after passing through the expansion valve b1c and is sent to the first pipe a2d from the outlet.
[0018] The backflow prevention valve a3 shown in FIGS. 2 and 3 allows water with a high dissolved oxygen content in the upper layer of lakes and / or bays and oceans to flow into the inside by opening the backflow prevention valve a3 on the upstream side of the first casing a1 due to wave power and tidal power. The backflow prevention valve a3 supports a valve plate a3b sized to close the opening of a valve body a3a provided with an opening by a hinge a3c, and the valve plate a3b can be opened and closed. A screen a3d is provided outside the backflow prevention valve a3 to prevent dust with a diameter of φ5 mm or more from flowing into the first casing a1, and for example, hooks are provided so that bag-shaped dust can be caught.
[0019] Dozens of heat pipes a4 shown in FIGS. 2 and 4 are provided inside the system body A, collect heat from the water flowing in from the backflow prevention valve a3 inside the first casing a1, and efficiently transfer heat to and dissipate heat in the heat exchange chamber a2c of the second casing a2. The heat pipe body a4a has a heat collection part, a heat dissipation part, and a wick. Fins a4b are provided to increase the heat dissipation area of the heat dissipation part of the heat pipe body a4a and improve the heat exchange efficiency with the heat medium. A bush a4c is provided to enlarge the hole for easy attachment and detachment because the outer diameter of the fin a4b is large. A clamp joint a4d is provided to fix the heat pipe 6.
[0020] The water pump a5 shown in FIGS. 2 and 5 complements the pumping of water with a high dissolved oxygen content in the upper layer of lakes and / or bays and oceans to the lower layer, and is detachably mounted by providing a cavity in the central part of the system body A. The rotation of the motor a5a is transmitted by a shaft a5b to drive a water pump impeller a5c. The impeller a5c is arranged at the outlet of the funnel-shaped lower end of the first casing a1 for efficient water pumping.
[0021] The microplastic collection unit D shown in FIGS. 1 and 6 collects microplastics floating in the upper layer of lakes and / or bays and oceans, is provided from the lower part to the upper side part of the system body A, collects microplastics at the lower part by centrifugal force using the water flow, sucks them up together with water to the upper side part of the system body A by a self-supply pump d2, and discharges them into a microplastic collection bag d3 for collection.
[0022] The wave power - hydraulic conversion unit E shown in FIGS. 2 and 7 converts wave power into hydraulic pressure and is provided at several locations on the outer periphery of the system main body A. The wing main body a1 captures the vertical movement of the wave as a rotational rocking movement, and is connected by a shaft e1b, a pinion shaft e2a, and a coupling e1c to drive a rocking - type hydraulic piston pump e2 to convert wave power into hydraulic pressure. The rocking - type hydraulic piston pump c2 can be returned to and held at the center of the rocking angle. By adjusting the angle of the coupling e1c, the wing main body e1 can be set horizontally or at an arbitrary angle, efficiently capturing the vertical movement of the wave and converting wave power into hydraulic pressure.
[0023] The rocking - type hydraulic piston pump e2 shown in FIG. 8 has a pinion shaft e2a, a first rack e2b, a second rack e2c, a piston e2d, and a spring e2e. With the torque applied to the pinion shaft e2a, the first rack e2b and the second rack e2c operate in a linear direction. The pair of pistons e2d connected to the first rack e2b convert it into hydraulic pressure, and the pair of springs e2e connected to the second rack e2c expand and contract. When no torque is applied to the pinion shaft e2a, the spring e2e can return the rocking - type hydraulic piston pump c2 to and hold it at the center of the rocking angle.
[0024] The hydraulic power generation unit e3 shown in FIG. 9 generates electricity using the hydraulic pressure of the wave power - hydraulic conversion unit E. The rocking of the wing c1a due to wave power drives the rocking - type hydraulic piston pump. One side of the piston c2d sucks in the hydraulic operating oil of the oil tank 16b via the check valve c3b, and the other piston c2d generates hydraulic pressure and accumulates it in the accumulator c3c via the check valve c3b, and drives the hydraulic motor c3d to generate electricity with the generator c3e. The generated electricity is used for driving the water supply pump a5, the compressor b1a, the self - supply pump d2, charging the battery b3, and as power for controlling and communicating with the water purification and heat - collecting temperature - raising system.
[0025] The control panel b2 shown in FIG. 1 controls various devices and sensors.
Explanation of symbols
[0026] A ··· System main body B ··· Unit & control unit C ··· Water supply hose D ··· Microplastic collection unit E ··· Wave power - hydraulic conversion unit a1 ··· First casing a2 ··· Second casing a2a ··· Bottom of the second casing a2b ··· Cap plate a2c ··· Heat exchange chamber a2d First pipe a2e ··· Second pipe a2f ··· First baffle plate a2g ··· First chamber a2h ··· First ventilation hole a2i ··· Second baffle plate a2j ··· Second chamber a2k ··· Second ventilation hole a3 ··· Backflow prevention valve a3a ··· Valve body a3b ··· Valve plate a3c ··· Hinge a3d ··· Screen a4 ··· Heat pipe a4a ··· Heat pipe body a4b ··· Fin a4c ··· Bush a4d ··· Clamp joint a5 ··· Water supply pump a5a ··· Motor a5b ··· Shaft a5c ··· Impeller b1 ··· Heat pump unit b1a ··· Compressor b1b ··· Heat exchanger b1c ··· Expansion valve b2 ‥ Control panel b3 Battery d1 ··· Microplastic collection unit d1a ··· Cyclone filter d2 ··· Self - feeding pump d3 ··· Microplastic collection bag e1 ··· Wing body e1a Wing e1b ··· Shaft e1c ··· Coupling e2 ··· Oscillating hydraulic piston pump e2a ··· Pinion shaft e2b ··· First rack e2c ··· Second rack e2d ··· Piston e2e ··· Spring e3 ·· Hydraulic power generation unit e3a ·· Oil tank e3b ·· Check valve e3c ·· Accumulator e3d ·· Hydraulic motor e3e ·· Generator
Claims
1. A water purification and heat collection and temperature raising system, having a system main body A, a unit & control part B, a water supply hose C, a microplastic collection unit D, and a wave power - hydraulic conversion unit E. The unit & control part B is disposed on the upper surface of the system main body A, the water supply hose C is disposed at the lowermost part, the microplastic collection unit D is disposed from the lower part to the upper side part, and the wave power - hydraulic conversion unit E is disposed at several locations on the outer periphery. The water purification and heat collection and temperature raising system has a fixed type and a floating type. For maintaining the installation position of the floating type, for example, an anchor is driven into the seabed and moored with a wire rope. The system main body A has a first casing a1, a second casing a2, backflow prevention valves a3 at several locations on the outer periphery, dozens of heat pipes a4, and a water supply pump a5. The unit & control part B has a heat pump unit b1, a control panel b2, a battery b3, and a hydraulic power generation unit e3. The heat pump unit b1 has a compressor b1a, a heat exchanger b1b, and an expansion valve b1c. The microplastic collection unit D has a cyclone filter d1, a self - supply pump d2, and a microplastic collection bag d3. The wave power - hydraulic conversion unit E has a wing body e1 and a swing - type hydraulic piston pump e2. The hydraulic power generation unit e3 has an oil tank e3a, a check valve e3b, an accumulator e3c, a hydraulic motor e3d, and a generator e3e. The system main body A collects heat from water with a large amount of dissolved oxygen and a high water temperature in the upper layer of lakes and / or bays and oceans, and discharges it to the lower layer with a small amount of dissolved oxygen to improve oxygen - depleted water masses and low - oxygen sea areas. Due to wave power and tidal power, water opens the backflow prevention valve a3 on the upstream side and flows into the inside of the first casing a1. The backflow prevention valve a3 on the downstream side does not open, so the water flows toward the water supply hose C. The water that has flowed in is heated by the heat pipe a4. The water with a reduced temperature has an increased density. With the supplement of the water supply pump a5, the water is sent to the water supply hose C through the cyclone filter d1 and discharged to the lower layer with a small amount of dissolved oxygen to improve oxygen - depleted water masses and low - oxygen sea areas. The heat collected by the heat pipe a4 is heat-exchanged with a heat medium in the heat exchange chamber a2c of the second casing a2, and further compressed and heated by the compressor b1a of the heat pump unit b1. After heat-exchanging with the heat medium in the heat exchanger b1b, it is effectively utilized as an energy source. The microplastic recovery unit D recovers microplastics floating in the upper layer. The cyclone filter d1 collects microplastics at the bottom by centrifugal force utilizing the flow of water, and the self-priming pump d2 sucks them up together with water to the upper surface side of the system main body A and discharges them into the microplastic recovery bag d3 for recovery. The wave power - hydraulic conversion unit E captures the up-and-down movement of waves with the wing body e1, drives the oscillating hydraulic piston pump e2 to convert it into hydraulic pressure, supplies the hydraulic pressure to the hydraulic power generation unit e3, and drives the generator e3e with the hydraulic motor e3d to generate electricity. The generated electricity is used to drive the water supply pump a5, the compressor b1a, the self-priming pump d2, and charge the battery b3, and is utilized as electric power for controlling and communicating the water purification and heat collection temperature increase system. A water purification and heat collection temperature increase system that can effectively utilize water with a high dissolved oxygen content in the upper layer of lakes and / or bays and oceans by utilizing wave power and tidal power, improve the hypoxic water mass and low-oxygen sea area in the lower layer, recover floating microplastics in the upper layer, and in addition, collect water with a high water temperature, compress and heat it to effectively utilize it as an energy source, and can efficiently utilize the synergistic effect.
2. The oscillating hydraulic piston pump e2 has a pinion shaft e2a, a first rack e2b, a second rack e2c, a piston e2d, and a spring e2e. The first rack e2b and the second rack e2c operate in a linear direction by the torque applied to the pinion shaft e2a. The pair of pistons e2d connected to the first rack e2b convert it into hydraulic pressure, and the pair of springs e2e connected to the second rack e2c expand and contract. When no torque is applied to the pinion shaft e2a, the oscillating hydraulic piston pump c2 can be returned to and held at the center of the oscillation angle by the spring e2e. By adjusting the angle of the coupling e1c that connects the pinion shaft e2a and the axis e1b of the wing body e1, it can be set to a horizontal or arbitrary angle, efficiently capture the vertical movement of the waves and convert it into hydraulic pressure, drive the generator e3e by the hydraulic motor e3d to generate electricity, and supply power by itself. The water purification and heat collection temperature increase system according to claim 1.