JP7266347B2 - Heave Floating Power Generation/Oxygen Augmentation Apparatus and Method - Google Patents

Description

The present invention belongs to the field of wave power generation, and specifically relates to a heave floating power generation and oxygen enrichment device and method.

As climate change due to fossil energy depletion and greenhouse gas emissions becomes more and more serious, the development of renewable energy has become an important direction of global energy development. As a clean, non-polluting and renewable new energy, seawater wave energy has the advantages of large reserves, wide distribution, high energy density and easy conversion, making it a focus of new energy research. ing. The development and utilization of seawater wave energy is of great importance for alleviating energy shortages, reducing environmental pollution, developing coastal and island economies, and enhancing coastal defenses.

Wave power devices are the main form of utilizing wave energy, and wave power devices are mainly classified into heave floating type, heave water column type and wave overtopping type according to the energy acquisition method. Compared with the heave water column type and overtopping type, the heave floating wave power device has advantages such as simple structure, convenient installation and maintenance, high energy conversion efficiency, and suitable for small waves.

At present, there are rack and pinion types and hydraulic types in the transmission mechanism of heave floating wave power devices in China. The rack and pinion type is disadvantageous in repair due to its low reliability, so it is not used on a large scale. few. However, the currently widely used hydraulic transmission mechanism has the disadvantage of high cost and maintenance costs. Therefore, the helical gear type transmission mechanism, which is simple in structure and low in cost, has come into view, but there are few studies on the transmission mechanism related to it.

In view of the above problems, an object of the present invention is to provide a heave floating power generation system capable of capturing and transmitting wave energy through a simple and inexpensive helical gear transmission mechanism, and simultaneously realizing the dual functions of power generation and oxygen enrichment. • To provide an oxygen augmentation device and method.

The present invention comprises an energy capture system, a diversion system located inside said energy capture system, an oxygen enrichment system and a power generation system, wherein said energy capture system has a lower end fixed to the seabed and an upper end fixed to the seabed. At least four parallel steel frames protruding from, a pedestal fixedly attached to the top end of the steel frame, and a transmission mechanism lightly swinging through the pedestal along a direction parallel to the steel frame a flexible waterproof housing located under the pedestal to surround the ball screw from the outside and extendable along the axial direction of the ball screw; a heave float fixedly connected to the lower end of a ball screw, the turning system comprising a sleeve shaft mounted coaxially with the ball screw and an output shaft mounted on a different axis than the sleeve shaft in the same direction. two ratchets attached to the output shaft, two screw gears attached to the sleeve shaft, and a rotation switching ring that meshes with one of the screw gears and one of the ratchets, respectively. an oxygen-enhancing system, comprising: a plurality of intake pipes fitted into the pedestal from above and having lower portions extending into the interior of the flexible waterproof housing to form air passages; a plurality of one-way intake solenoid valves capable of adjusting the amount of intake air; a plurality of downward exhaust pipes connected to the bottom of the heave floating body to communicate the interior space surrounded by the flexible waterproof housing with the outside; A plurality of downward one-way exhaust solenoid valves installed corresponding to the mouth of the lower exhaust pipe and capable of adjusting the amount of suction, and a plurality of upward exhaust valves fitted into the pedestal from above and extending into the interior of the flexible waterproof housing. and a plurality of upper one-way exhaust solenoid valves installed corresponding to the pipe mouth of the upper exhaust pipe and capable of adjusting the amount of intake air, wherein the power generation system is positioned at the upper end of the output shaft. We provide floating power generation and oxygen augmentation equipment.

According to the present invention, by utilizing the helical gear type transmission mechanism that captures energy with the above-mentioned new type of heave floating body, the conventional rack and pinion has low transmission reliability and short service life. It exhibits the feature of low cost of the formula system. In addition, in the present invention, the flexible waterproof housing, the ball screw, and the intake and exhaust pipes cooperate to realize the dual functions of increasing oxygen and power generation, and installing a solenoid valve to Controlling the valve does not affect the effect when the two functions operate independently. Therefore, the present invention provides a new concept for capturing the energy in the heave direction of the floating body by ocean energy, and by adjusting the size of the intake pipe when the wind is high, the movement width of the floating body is limited. It can not only protect , but also provide the function of increasing oxygen to a specific area at the same time. Furthermore, the ball screw can be protected by installing a flexible protective housing and a rigid protective housing.

In the present invention, a rigid ring may be arranged around the flexible waterproof housing in the circumferential direction. As a result, it is possible to limit the radial volume expansion of the flexible waterproof housing and to ensure gas discharge.

In the present invention, the energy capture system may further comprise a rigid protective housing located on the pedestal and covering the ball screw from the outside. Therefore, the ball screw can be protected.

In the present invention, one of the screw gears of the ball screw meshes with one of the ratchet of the output shaft, and the other of the screw gears of the ball screw meshes with the rotation switching ring. , the rotary switching wheel may mesh with another one of the ratchets on the output shaft.

In the present invention, when the heave float moves downward, the volume of the internal cavity enclosed by the flexible waterproof housing increases, and air is forced under pressure through the air filter into the cavity from the intake pipe with a low water content. closing a downward one-way exhaust solenoid valve to prevent seawater from entering the cavity, and when said heave float moves upward, the volume of the inner cavity surrounded by said flexible waterproof housing becomes smaller, and said one-way intake solenoid A valve prevents the air in the cavity from returning to the atmosphere from above, and the air may enter the seawater through the downward one-way exhaust solenoid valve. As a result, when the heave floating body heaves, the volume of the internal cavity increases or decreases accordingly, so that air can be drawn in or exhausted to increase the oxygen content in the seawater.

In the present invention, the oxygen-enhancing system may further include a plurality of air filters attached to the upper surface of the pedestal and connected to the one-way intake solenoid valves respectively. This causes air to enter the cavity from the intake pipe with a low moisture content through the air filter.

In the present invention, when the wave height of the sea is large, the upward one-way exhaust solenoid valve is adjusted to reduce the displacement, and the downward one-way exhaust solenoid valve is adjusted to increase the displacement, The one-way intake solenoid valve, the upward one-way exhaust solenoid valve, and the downward one-way exhaust solenoid valve are arranged to increase the resistance when the heave floating body moves and to hover the heave floating body to a high position when the wave height exceeds a predetermined value. A one-way exhaust solenoid valve may be closed. As a result, by adjusting the displacement, when the wind is high, the movement width of the floating body is restricted to protect the device from being destroyed by excessive wind and waves, and to prevent it from operating when the wind is too high. To further protect the device by hovering the floating body to the highest point.

In the present invention, the predetermined value may be a numerical value exceeding the critical wave height at which the device can operate safely.

According to the present invention, when the heave floating body heaves due to wind and waves, the ball screw rigidly in contact with the heave floating body is also displaced in the vertical direction accordingly, and the two sleeve shafts are vertically aligned with the pedestal. Due to the directional constraint relationship, relative displacement occurs with the ball screw and rotates, and the screw gears that are in mesh with each other rotate accordingly, and one of the screw gears changes the direction of rotation via the rotation switching ring. After switching once, the power is transmitted to the two ratchets mounted in the same direction in the same rotational direction, the output shaft is rotated in one direction, and the DC generator is rotated by the output shaft to generate power. , further provides a power generation and oxygen augmentation method using the above power generation and oxygen augmentation device.

According to the above, the present invention is a heave floating power generation and oxygen augmentation system that realizes the capture and transmission of wave energy through a simple and inexpensive mechanical transmission mechanism, and simultaneously achieves the dual functions of power generation and oxygen augmentation. An apparatus and method can be provided.

1 is a perspective view of a heave floating power generation/oxygen augmentation apparatus according to an embodiment of the present invention; FIG.

2 is a partial cross-sectional view of the device shown in FIG. 1; FIG.

2 is an enlarged view of the internal structure of the device shown in FIG. 1; FIG.

Figure 2 is an enlarged view of the turning system shown in Figure 1;

101 Steel frame; 102 Heave floating body; 103 Ball screw; 104 Rigid protection housing; 105 Flexible waterproof housing; Ratchet; 205 Output shaft; 206 Turning shaft; 301 Air filter; 302 Intake pipe; 303 One-way intake solenoid valve; 304 Upper exhaust pipe; 401 Generator.

EXAMPLES The present invention will be described in more detail below with reference to examples. The following examples are merely further explanations for the present invention, and are not intended to limit the protection scope of the present invention. belongs to the protection scope of the invention. The specific process variables and the like in the following examples are only examples within the applicable range, that is, those skilled in the art can select within an appropriate range based on the description of the present invention, and the specific numerical values in the following examples is not limited to The same or corresponding reference numerals denote the same elements throughout all the drawings, and duplicate description thereof will be omitted.

Disclosed herein is a heave floating power generation and oxygen augmentation apparatus comprising an energy capture system, a diversion system located within the energy capture system, an oxygen augmentation system to augment oxygen, and a power generation system to generate electricity. Specifically, FIG. 1 shows a perspective view of a heave floating power generation/oxygen augmentation apparatus according to one embodiment of the present invention, FIG. 2 is a partial cross-sectional view of the apparatus shown in FIG. 1, and FIG. 4 is an enlarged view of the internal structure of the device shown in FIG. 1, and FIG. 4 is an enlarged view of the turning system shown in FIG.

As shown in FIGS. 1 and 2, the energy capture system comprises four steel frames 101, a heave float 102, a ball screw 103, a rigid protective housing 104, a flexible waterproof housing 105, and a pedestal 106. Prepare. Among them, four steel frames 101 are fixed to the seabed at their lower ends and protrude from the sea at their upper ends. The heave floating body 102 is fixedly connected to the lower end of the ball screw 103, and the rigid protective housing 104 is positioned on the pedestal 106 and is configured to extend vertically through the pedestal 106 so as to be lightly rockable. Enveloping the screw 103, the deflection system and the power generation system, a flexible waterproof housing 105 is positioned below the pedestal 106 and surrounds the ball screw 103 from the outside, together with the lower surface of the heave float 102 below and the upper pedestal 106, to form a sealed internal cavity. form a space. The flexible waterproof housing 105 is configured to be extendable in the axial direction of the ball screw 103, so that the internal hollow space can be expanded or contracted.

2, 3 and 4, the deflection system includes a sleeve shaft 201, a lower bearing seat 107, an upper bearing seat 108, a rotation switching wheel 202, two helical gears 203, two ratchets 204, It has an output shaft 205 and a turning shaft 206 . Among them, the sleeve shaft 201 is installed coaxially with the ball screw 103 , specifically, the sleeve shaft 201 is installed to cover the ball screw 103 . The upper bearing seat 108 and the lower bearing seat 107 restrict the sleeve shaft 201 to move up and down, and the sleeve shaft 201 can only rotate without longitudinal displacement. The output shaft 205, the turning shaft 206 and the sleeve shaft 201 are mounted on different axes, the two ratchets 204 are vertically coaxially mounted on the output shaft 205, and the two screw gears 203 are vertically coaxially mounted on the sleeve shaft 201. , the rotation switching wheel 202 is mounted on the turning shaft and meshes with one of the helical gears 203 and one of the ratchets 204, specifically, one of the helical gears 203 and one of the ratchets 204. The other one of the helical gears 203 meshes with the rotary switching wheel 202, the rotary switching wheel 202 meshes with the other of the ratchet 204, and the turning shaft 206 moves synchronously with the rotary switching wheel 202. That is, the rotation switching wheel 202 is overlaid on the turning shaft 206 . In the embodiment shown in FIG. 2 of the present invention, the upper ratchet 204 is reversely rotated by the rotation of the rotation switching wheel 202, but is not so limited.

2 and 3, the oxygen enrichment system includes a plurality of air filters 301, an intake pipe 302, a one-way intake solenoid valve 303, an upper exhaust pipe 304, a lower exhaust pipe 305, and an upper one-way exhaust solenoid valve 307. , with a downward one-way exhaust solenoid valve 306 . Among them, a plurality of intake pipes 302 are inserted into the pedestal 106 from above, and their lower portions extend into the interior of the flexible waterproof housing 105 to form air passages for communicating the inner hollow space with the outside air, and the pipe openings of the pipes are provided with intake air. A plurality of adjustable one-way intake electromagnetic valves 303 are correspondingly installed, and the one-way intake electromagnetic valves 303 are respectively connected to the air filters 301 installed on the upper surface of the base 106 . The air filter 301 is located outside the rigid protective housing and is used to remove moisture, slow down rust and protect internal components. The lower exhaust pipe 305 is connected to its bottom end through the heave floating body 102 to form an air passage that communicates the internal hollow space with the outside. A directional exhaust solenoid valve 306 is provided. A plurality of upper exhaust pipes 304 are inserted into the pedestal 106 from above, and their lower portions extend into the interior of the flexible waterproof housing 105 to form another air passage for communicating the inner hollow space with the outside air, and the pipe mouth thereof. , a plurality of upward one-way exhaust solenoid valves 307 capable of adjusting the amount of intake air are correspondingly installed. By installing the upper exhaust pipe 304, it is possible to prevent generation of excessive pressure resistance due to sealing of the internal cavity when the power generation function is activated, and to prevent deterioration of power generation efficiency. The upper exhaust pipe has the same structure as the intake pipe.

In addition, the power generation system includes a generator 401 positioned at the upper end of the output shaft 205 and capable of generating DC electricity, but is not limited thereto. Concretely, in the present invention, the heave floating body 102 is heave-moved by wind waves, and vertically moves the ball screw 103 which is in rigid contact with it. As the ball screw 103 moves up and down, the mechanical structural features of the ball screw 103 translate the relative longitudinal displacement into rotation of the sleeve shaft 201 and the helical gear 203 . More specifically, in the exemplary embodiment of the present invention, when the ball screw 103 moves upward, the two screw gears 203 rotate clockwise, the lower ratchet 204 rotates counterclockwise, and the upper The ratchet 204 rotates clockwise due to the conversion of the rotation switching wheel 202 , thus the counterclockwise rotating ratchet 204 drives the generator 401 to generate electricity, and the clockwise rotating ratchet 204 drives the output shaft 205 . , and does not drive the generator 401 to generate power. When the ball screw 103 moves downward, the two screw gears 203 rotate counterclockwise, the lower ratchet 204 rotates clockwise, and the upper ratchet 204 rotates counterclockwise due to the conversion of the rotation switching wheel 202. The rotating, counterclockwise rotating ratchet 204 drives the generator 401 to generate electricity, while the clockwise rotating ratchet 204 moves relative to the output shaft 205 and does not drive the generator 401 to generate electricity.

Furthermore, the size of the inner cavity formed by the flexible waterproof housing 105 can be adaptively adjusted according to the marine conditions and is not particularly limited. Furthermore, a rigid ring is arranged in the circumferential direction of the flexible waterproof housing 105. For example, in the present invention, as shown in FIG. A steel ring is installed on the part, which can limit the radial volume expansion of the flexible waterproof housing 105 and ensure that the gas can be discharged smoothly.

The present invention is configured as described above so that when the heave float 102 moves downward, the volume of the internal cavity enclosed by the flexible watertight housing 105 increases and air is forced through the air filter 301 under pressure. Water content enters the cavity from the intake pipe 302, at which time the downward one-way exhaust solenoid valve 306 is closed to prevent seawater from entering the cavity. When the heave float 102 moves upward, the volume of the inner cavity surrounded by the flexible waterproof housing 105 becomes smaller, and the one-way intake solenoid valve 303 prevents the air in the cavity from returning to the atmosphere from above, and the air is prevented from returning to the atmosphere from above. Seawater is entered through one-way exhaust solenoid valve 306 . As a result, when the heave floating body 102 performs heave motion, the volume of the internal cavity is increased or decreased accordingly, so that air can be taken in or exhausted, and the oxygen content in the seawater can be increased.

Furthermore, when the wave height of the sea is large, the upper one-way exhaust solenoid valve 307 is adjusted to reduce the displacement, and the lower one-way exhaust solenoid valve 306 is adjusted to increase the displacement, so that the heave floating body 102 Increases resistance when moving. When the wave height exceeds a predetermined value, the one-way intake solenoid valve 303, the upward one-way exhaust solenoid valve 307, and the downward one-way exhaust solenoid valve 306 are closed so that the heave floating body 102 hovers at a high position. As a result, by adjusting the displacement, when the wind and waves are high, the movement width of the floating body is restricted to protect the device from being destroyed by excessive wind and waves, and when the wind and waves are too high, the device is activated. The device is further protected by hovering the floating body in a high position so as not to Among them, the predetermined value is the limit wave height at which the device can operate safely, and may be determined according to the specific situation.

According to the present invention, by using the above-mentioned new heave floating body 102 to supplement energy with the mechanical transmission mechanism, the conventional rack and pinion has low transmission reliability and short service life. has the advantage of low cost. In addition, through the cooperation of the flexible waterproof housing 105, the ball screw 103 and the intake and exhaust pipes, the present invention can realize the dual functions of increasing oxygen and power generation, and installing a solenoid valve. By controlling the pneumatic valve as such, the effect is not affected when the two functions operate independently. Therefore, the present invention provides a new concept for capturing energy in the heave direction of the floating body by ocean energy, and by adjusting the intake pipe 302 when the wind is high, the movement width of the floating body is limited and the floating body can be lifted. It can not only protect, but also provide the function of increasing oxygen to a specific area at the same time. Furthermore, the ball screw can be protected by installing a flexible protective housing 105 and a rigid protective housing 104 .

The above embodiments describe in more detail the objectives, technical schemes and beneficial effects of the present invention. The above is merely an embodiment of the present invention, and is not intended to limit the protection scope of the present invention, and the present invention can be implemented in various forms without departing from the basic characteristics of the present invention. . Accordingly, embodiments of the present invention are illustrative rather than limiting. Because the scope of the invention is defined by the appended claims rather than by the specification, all changes that come within the scope of the claims defined by the appended claims or the equivalents of such limited scope are subject to the scope of the appended claims. include. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (9)

an energy capture system , a diversion system, an oxygen augmentation system, and a power generation system, comprising:
The energy capture system includes:
at least four parallel steel frames fixed at their lower ends to the sea bed and projecting from the sea at their upper ends;
a pedestal fixedly attached to the top end of the steel frame;
a ball screw configured to swingably penetrate the pedestal and extend along a direction parallel to the steel frame as a transmission mechanism;
a flexible waterproof housing positioned under the pedestal to surround the ball screw from the outside and extendable along the axial direction of the ball screw;
a heave floating body fixedly connected to the lower end of the ball screw,
The turning system comprises:
a sleeve shaft mounted coaxially with the ball screw;
an output shaft attached to a shaft different from the sleeve shaft ;
two ratchets attached to the output shaft;
two screw gears attached to the sleeve shaft;
a rotary switching wheel that meshes with one of the helical gears and one of the ratchets, respectively;
a plurality of intake pipes that are inserted into the pedestal from above and whose lower portions extend into the interior of the flexible waterproof housing to form air passages;
a plurality of one-way intake solenoid valves installed corresponding to the mouth of the intake pipe and capable of adjusting the amount of intake air;
a plurality of downward exhaust pipes connected to the bottom of the heave floating body to communicate the internal space surrounded by the flexible waterproof housing with the outside;
a plurality of downward one-way exhaust solenoid valves installed corresponding to the pipe mouth of the downward exhaust pipe and capable of adjusting the amount of intake air;
a plurality of upper exhaust pipes fitted into the pedestal from above and extending into the interior of the flexible waterproof housing;
a plurality of upward one-way exhaust solenoid valves installed corresponding to the mouth of the upper exhaust pipe and capable of adjusting the amount of intake air;
The power generation system is positioned at the upper end of the output shaft,
Heave Floating Power Generation Oxygen Augmentation Device. 2. The heave floating oxygen generator according to claim 1, wherein a rigid ring is disposed around said flexible waterproof housing in a circumferential direction. 2. The heave floater oxygen generator of claim 1, wherein said energy capture system further comprises a rigid protective housing positioned over said pedestal and externally covering said ball screw. One of the screw gears meshes with one of the ratchet of the output shaft , another one of the screw gears meshes with the rotation switching wheel, and the rotation switching wheel is meshed with the output shaft. 2. The heave floater powered oxygen augmentation device of claim 1, wherein it engages another one of said ratchets. As the heave float moves downward, the volume of the internal cavity enclosed by the flexible waterproof housing increases, air is forced through the air filter and enters the cavity from the intake pipe under pressure, and seawater is prevented from entering the cavity. Close the downward one-way exhaust solenoid valve to prevent
When the heave floating body moves upward, the volume of the internal cavity surrounded by the flexible waterproof housing becomes smaller, and the one-way intake solenoid valve prevents the air in the cavity from returning to the atmosphere from above, and the air is 2. The heave floating power oxygen augmentation device of claim 1, wherein seawater is entered through a downward one-way exhaust solenoid valve. The heave floating power generation oxygen augmentation system according to claim 1, wherein the oxygen augmentation system further comprises a plurality of air filters mounted on the upper surface of the pedestal and respectively connected to the one-way intake solenoid valves. Device. By adjusting the upward one-way exhaust solenoid valve to decrease the displacement and adjusting the downward one-way exhaust solenoid valve to increase the displacement when the wave height of the sea is large, the heave floating body is increase resistance when moving,
When the wave height exceeds a predetermined value, the one-way intake solenoid valve, the upward one-way exhaust solenoid valve, and the downward one-way exhaust solenoid valve are closed so that the heave floating body hovers at a high position. The heave floating power generating oxygen augmentation device of claim 1. 8. The heave floating power-generating oxygen increasing device according to claim 7, wherein the predetermined value is a numerical value exceeding a limit wave height at which the device can operate safely. When the heave floating body heaves due to wind and waves, the ball screw rigidly connected to the heave floating body is also displaced in the longitudinal direction accordingly,
The two sleeve shafts rotate while being displaced relative to the ball screw due to a longitudinal constraint relationship with the pedestal, and the screw gears meshing with each other rotate accordingly,
one of the screw gears reverses the direction of rotation via the rotation switching wheel and then transmits the rotation to the ratchet to rotate the output shaft in one direction;
generating power by rotating the DC generator on the output shaft;
A power generation/oxygen increasing method using the heave floating power generating oxygen increasing device according to any one of claims 1 to 8.

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