Construction and working method of small marine solar thermoelectric power generation device

Abstract

The application discloses a kind of construction and working method of small offshore solar thermoelectric power generation device, solve the equipment maintenance cost high, short service life and the problem of not suitable for miniaturization existing in present equipment;Including seawater (6), there is heat insulation box (5) in seawater (6) floating, on the top end surface of heat insulation box (5), be provided with solar heat collecting component (1), on the bottom end surface of heat insulation box (5), be connected with thermoelectric power generation unit frame (2), on the lower bottom surface of thermoelectric power generation unit frame (2), be connected with sea wave energy diaphragm pump (3), solar heat collecting component (1), heat insulation box (5), thermoelectric power generation unit frame (2) and sea wave energy diaphragm pump (3) are made of a closed box type space;Heat transfer medium circulates in a closed system, complete the task of converting heat energy into electric energy;Long life, low maintenance cost.

Description

Technical Field

[0001] This invention relates to a power generation device utilizing solar energy, and more particularly to a small-scale marine solar thermal energy conversion device and its power generation method. Background Technology

[0002] Existing offshore solar power generation equipment is basically similar to onshore solar power generation devices, using photovoltaic panels to generate electricity. In recent years, a technology solution using thermoelectric power generation has emerged. This solution uses high-temperature steam to enter a turbine, which converts the temperature difference into mechanical energy, and then into electrical energy. This thermoelectric power generation technology solution has the following problems: the system is complex, it is only suitable for large-scale power generation sites, not for small-scale sites, the system has poor flexibility, the mechanical equipment and rotating parts have high maintenance frequency and cost, and the equipment has a short lifespan. Summary of the Invention

[0003] This invention provides a method for constructing and operating a small-scale marine solar thermal power generation device, which solves the technical problems of high equipment maintenance costs, short service life, and unsuitability for miniaturization of existing equipment.

[0004] A small-scale marine solar thermal power generation device includes seawater, with an insulated box floating in the seawater. A solar collector is mounted on the top surface of the insulated box, and a thermal power generation unit frame is connected to the bottom surface of the insulated box. A wave energy diaphragm pump is connected to the bottom surface of the thermal power generation unit frame. The solar collector, insulated box, thermal power generation unit frame, and wave energy diaphragm pump form a sealed box-shaped space. A transparent glass cover that allows sunlight to pass through is mounted on top of the solar collector. The square outer shell of the insulated box and the transparent glass cover on its top surface... A glass cover forms a sealed solar collector space. Within this space, parallel copper pipe arrays are installed. One end of each array connects to a manifold for the heat transfer medium after heat exchange, and the other end connects to the same manifold. External heat exchange plates with fins are installed on the outer facade of the thermoelectric generator unit frame. Four of these plates form a square frame. Thermoelectric semiconductor plates are installed on the inner surfaces of the external heat exchange plates, and further details are provided on the inner surfaces of these semiconductor plates. The internal heat exchange plates contain serpentine channels for the flow of the heat transfer medium. These channels are sequentially connected end-to-end. At one end of each serpentine channel is the heat transfer medium inlet for the power generation unit, and at the other end is the heat transfer medium outlet. Above the wave-powered diaphragm pump is a diaphragm pump chamber. The outer sides of the diaphragm pump chamber are sealed to the four inner facades of the outer heat exchange plate frame. The top surface of the diaphragm pump chamber has both a heat transfer medium outlet and an inlet. A connecting column is connected to the bottom diaphragm, and a square damping diaphragm plate is connected to the lower end of the connecting column. A one-way valve is installed in the heat transfer medium outlet of the diaphragm pump, allowing the heat transfer medium to exit but not enter. A one-way valve is installed in the heat transfer medium inlet of the diaphragm pump, allowing the heat transfer medium to enter but not exit. A heat medium outlet is installed on the heat transfer medium manifold after heat absorption. The heat medium outlet is connected to the heat transfer medium inlet of the power generation unit. The heat transfer medium outlet of the power generation unit is connected to the heat transfer medium inlet of the diaphragm pump. The heat transfer medium outlet of the diaphragm pump is connected to the cold medium inlet on the heat transfer medium manifold after heat exchange.

[0005] A heat-conducting copper plate is installed between two adjacent copper tubes in the copper tube bank; a sealant is installed between the transparent glass cover and the heat-insulating box; the serpentine flow channels on two adjacent inner heat exchange plates are connected together by a circulation pipe.

[0006] A method for constructing and operating a small-scale marine solar thermal power generation device includes seawater, an insulated box floating in the seawater, a solar collector assembly installed on the top surface of the insulated box, a thermal power generation unit frame connected to the bottom surface of the insulated box, and a wave energy diaphragm pump connected to the bottom surface of the thermal power generation unit frame. The solar collector assembly, the insulated box, the thermal power generation unit frame, and the wave energy diaphragm pump form a sealed box-shaped space; characterized by the following steps:

[0007] The first step is to process the square outer shell of the heat insulation box. Inside the square outer shell, heat transfer medium manifolds, copper pipe arrays, and heat transfer medium manifolds after heat absorption are installed. One end of the parallel copper pipe array is connected to the heat transfer medium manifold after heat exchange, and the other end of the parallel copper pipe array is connected to the heat transfer medium manifold after heat absorption. A transparent glass cover is installed on the top of the square outer shell, so that the heat insulation box forms a sealed solar thermal collection space that receives sunlight.

[0008] The second step is to process the inner heat exchange plate, and to set up a serpentine flow channel for the heat transfer medium to flow inside the inner heat exchange plate; to process the outer heat exchange plate, and to set up heat dissipation fins on the outer side of the outer heat exchange plate; to form a square thermoelectric power generation unit frame using four outer heat exchange plates, to set up a thermoelectric power generation semiconductor plate on the inner side of the outer heat exchange plate, and to set up an inner heat exchange plate on the inner side of the thermoelectric power generation semiconductor plate; to set up the serpentine flow channel in the four inner heat exchange plates, the serpentine flow channels are connected end to end in sequence; to set up the heat transfer medium inlet of the power generation unit at one end of the serpentine flow channel, and to set up the heat transfer medium outlet of the power generation unit at the other end of the serpentine flow channel;

[0009] The third step is to connect the thermoelectric power generation unit frame processed in the second step to the bottom surface of the heat insulation box processed in the first step; and to connect the heat transfer medium inlet of the power generation unit to the heat transfer medium manifold after heat absorption.

[0010] Step 4: Connect the wave energy diaphragm pump to the bottom surface of the thermoelectric power generation unit frame; at the top of the wave energy diaphragm pump, a diaphragm pump cavity is set, and the four outer sides of the diaphragm pump cavity are sealed and connected to the four inner sides of the outer heat exchange plate frame. On the top surface of the diaphragm pump cavity, the diaphragm pump heat transfer medium outlet and the diaphragm pump heat transfer medium inlet are respectively set. On the diaphragm of the bottom surface of the diaphragm pump cavity, a connecting column is connected, and a square damping diaphragm plate is connected to the lower end of the connecting column. In the diaphragm pump heat transfer medium outlet, a one-way valve is set, which allows the heat transfer medium to exit but not enter. In the diaphragm pump heat transfer medium inlet, a one-way valve is set, which allows the heat transfer medium to enter but not exit. A hot medium outlet is set on the heat transfer medium manifold after heat absorption. The hot medium outlet is connected to the heat transfer medium inlet of the power generation unit. The heat transfer medium outlet of the power generation unit is connected to the heat transfer medium inlet of the diaphragm pump. The heat transfer medium outlet of the diaphragm pump is connected to the cold medium inlet on the heat transfer medium manifold after heat exchange.

[0011] Step 5: Inject the heat transfer medium into the circulating flow space of the heat transfer medium, which consists of the heat transfer medium manifold after heat exchange, the parallel copper tube bank, the heat transfer medium manifold after heat absorption, the serpentine flow channel in the four internal heat exchange plates, and the diaphragm pump cavity.

[0012] Step 6: Place the solar thermal power generation device, which has been completed in the above five steps, into the seawater and let it float on the sea surface.

[0013] Step 7: The waves move up and down through the square damping diaphragm plate, causing the volume of the diaphragm pump chamber to contract and expand with the waves, allowing the heat transfer medium to circulate repeatedly within the circulation space of the heat transfer medium described in Step 5. Simultaneously, the heat transfer medium flowing through the copper pipe bank absorbs sunlight and is heated. The heated heat transfer medium enters the serpentine flow channel, creating a temperature difference between the inner and outer sides of the thermoelectric power generation semiconductor plate, thus completing the power generation process, converting the thermal energy of the heat transfer medium into electrical energy. The cooled heat transfer medium enters the diaphragm pump chamber and, propelled by the waves, is pumped into the heat transfer medium manifold after heat exchange. The heat transfer medium in the heat transfer medium manifold then flows through the copper pipe bank again to absorb solar sunlight, thus circulating and generating electricity.

[0014] The power generation system has a simple structure, does not require a complex turbine system, has low cost, and is easy to miniaturize. Because it has no internal rotating mechanical parts, its lifespan is relatively long, and maintenance costs are low. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the heat-insulating box 5 of the present invention;

[0017] Figure 3This is a schematic diagram of the structure of the thermoelectric power generation unit frame 2 of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the wave energy diaphragm pump 3 of the present invention. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings:

[0020] A small-scale marine solar thermal power generation device includes seawater 6, an insulated box 5 floating in the seawater 6, a solar collector 1 installed on the top surface of the insulated box 5, a thermal power generation unit frame 2 connected to the bottom surface of the insulated box 5, and a wave energy diaphragm pump 3 connected to the bottom surface of the thermal power generation unit frame 2. The solar collector 1, the insulated box 5, the thermal power generation unit frame 2, and the wave energy diaphragm pump 3 form a sealed box-shaped space. A transparent glass cover 11 that allows sunlight to pass through is installed on the top of the solar collector 1. The square outer shell 12 of the insulated box 5 and the transparent glass cover 1 on its top surface are connected. A closed solar collector space is formed, within which parallel copper pipe arrays 13 are installed. One end of each parallel copper pipe array 13 is connected to a heat transfer medium manifold 14 after heat exchange, and the other end is connected to the heat transfer medium manifold after heat absorption. External heat exchange plates 21 with heat dissipation fins are installed on the outer facade of the thermoelectric power generation unit frame 2. Four external heat exchange plates 21 form a square external heat exchange plate frame for the thermoelectric power generation unit frame. A thermoelectric power generation semiconductor plate 22 is installed on the inner side of the external heat exchange plate 21, and an inner heat exchange plate 23 is installed on the inner side of the thermoelectric power generation semiconductor plate 22. Inside the inner heat exchange plate 23, there is a serpentine flow channel 24 for the flow of heat transfer medium. The serpentine flow channels 24 in the four inner heat exchange plates 23 are connected end to end in sequence. At one end of the serpentine flow channel 24, there is a heat transfer medium inlet 25 for the power generation unit, and at the other end of the serpentine flow channel 24, there is a heat transfer medium outlet for the power generation unit. At the upper end of the wave energy diaphragm pump 3, there is a diaphragm pump cavity 33. The outer sides of the diaphragm pump cavity 33 are sealed and connected to the four inner sides of the outer heat exchange plate frame. On the top surface of the diaphragm pump cavity 33, there are diaphragm pump heat transfer medium outlet 35 and diaphragm pump heat transfer medium inlet 36 respectively. On the bottom surface of the diaphragm pump cavity 33... A connecting post 322 is connected to the diaphragm 321, and a square damping diaphragm plate 32 is connected to the lower end of the connecting post 322. A one-way valve 34 that allows the heat transfer medium to exit but not enter is provided in the heat transfer medium outlet 35 of the diaphragm pump, and a one-way valve 31 that allows the heat transfer medium to enter but not exit is provided in the heat transfer medium inlet 36 of the diaphragm pump. A hot medium outlet is provided on the heat transfer medium manifold after heat absorption. The hot medium outlet is connected to the heat transfer medium inlet 25 of the power generation unit. The heat transfer medium outlet of the power generation unit is connected to the heat transfer medium inlet 36 of the diaphragm pump. The heat transfer medium outlet 35 of the diaphragm pump is connected to the cold medium inlet on the heat transfer medium manifold 14 after heat exchange.

[0021] A heat-conducting copper plate 15 is provided between two adjacent copper pipes in the copper pipe row 13; a sealant 16 is provided between the transparent glass cover 11 and the heat insulation box 5; and the serpentine flow channels 24 on two adjacent inner heat exchange plates 23 are connected together by a circulation pipe 4.

[0022] A method for constructing and operating a small-scale marine solar thermal power generation device includes seawater 6, an insulated box 5 floating in the seawater 6, a solar collector 1 installed on the top surface of the insulated box 5, a thermal power generation unit frame 2 connected to the bottom surface of the insulated box 5, and a wave energy diaphragm pump 3 connected to the bottom surface of the thermal power generation unit frame 2. The solar collector 1, the insulated box 5, the thermal power generation unit frame 2, and the wave energy diaphragm pump 3 form a sealed box-shaped space; characterized by the following steps:

[0023] The first step is to process the square outer shell 12 of the heat insulation box 5. In the square outer shell 12, heat exchange medium manifold 14, copper pipe row 13 and heat absorption medium manifold are respectively installed. One end of the parallel copper pipe row 13 is connected to the heat exchange medium manifold 14, and the other end of the parallel copper pipe row 13 is connected to the heat absorption medium manifold. A transparent glass cover plate 11 is installed on the top of the square outer shell 12, so that the heat insulation box 5 forms a closed solar heat collection space that receives sunlight.

[0024] The second step is to process the inner heat exchange plate 23, and to set a serpentine flow channel 24 for the heat transfer medium to flow inside the inner heat exchange plate 23; to process the outer heat exchange plate 21, and to set heat dissipation fins on the outer side of the outer heat exchange plate 21; to form a square thermoelectric power generation unit frame using four outer heat exchange plates 21, to set a thermoelectric power generation semiconductor plate 22 on the inner side of the outer heat exchange plate 21, to set an inner heat exchange plate 23 on the inner side of the thermoelectric power generation semiconductor plate 22, and to set the serpentine flow channel 24 in the four inner heat exchange plates 23 in sequence, to set an inlet 25 for the heat transfer medium of the power generation unit at one end of the serpentine flow channel 24, and to set an outlet 25 for the heat transfer medium of the power generation unit at the other end of the serpentine flow channel 24;

[0025] The third step is to connect the thermoelectric power generation unit frame 2 processed in the second step to the bottom surface of the heat insulation box 5 processed in the first step; and to connect the heat transfer medium inlet 25 of the power generation unit to the heat transfer medium manifold after heat absorption.

[0026] Step 4: Connect the wave energy diaphragm pump 3 to the bottom surface of the thermoelectric generator unit frame 2; at the upper end of the wave energy diaphragm pump 3, a diaphragm pump cavity 33 is provided, and the outer sides of the diaphragm pump cavity 33 are sealed and connected to the four inner sides of the outer heat exchange plate frame. On the top surface of the diaphragm pump cavity 33, a diaphragm pump heat transfer medium outlet 35 and a diaphragm pump heat transfer medium inlet 36 are respectively provided. On the diaphragm 321 on the bottom surface of the diaphragm pump cavity 33, a connecting column 322 is connected, and a square damping diaphragm plate is connected to the lower end of the connecting column 322. 32. A one-way valve 34 is provided in the diaphragm pump heat transfer medium outlet 35, which allows the heat transfer medium to exit but not enter; a one-way valve 31 is provided in the diaphragm pump heat transfer medium inlet 36, which allows the heat transfer medium to enter but not exit; a heat medium outlet is provided on the heat transfer medium manifold after heat absorption, which is connected to the heat transfer medium inlet 25 of the power generation unit; the heat transfer medium outlet of the power generation unit is connected to the heat transfer medium inlet 36 of the diaphragm pump; and the heat transfer medium outlet 35 of the diaphragm pump is connected to the cold medium inlet on the heat transfer medium manifold 14 after heat exchange.

[0027] Step 5: Inject heat transfer medium into the circulating flow space of the heat transfer medium, which consists of the heat transfer medium manifold 14 after heat exchange, the parallel copper pipe bank 13, the heat transfer medium manifold after heat absorption, the serpentine flow channel 24 in the four inner heat exchange plates 23 and the diaphragm pump cavity 33.

[0028] Step 6: Place the solar thermal power generation device, which has been completed in the above five steps, into seawater 6 and let it float on the sea surface;

[0029] Step 7: The waves move up and down through the square damping diaphragm plate 32, causing the volume of the diaphragm pump chamber 33 to contract and expand with the waves, so that the heat transfer medium circulates repeatedly in the circulation space of the heat transfer medium described in Step 5. At the same time, the heat transfer medium flowing through the copper pipe bank 13 absorbs sunlight and is heated. The heated heat transfer medium enters the serpentine flow channel 24, creating a temperature difference between the inner and outer sides of the thermoelectric power generation semiconductor plate 22, completing the power generation work, that is, converting the thermal energy of the heat transfer medium into electrical energy. The cooled heat transfer medium enters the diaphragm pump chamber 33 and is pumped into the heat transfer medium manifold 14 after heat exchange by the waves. The heat transfer medium in the heat transfer medium manifold 14 flows through the copper pipe bank 13 again to absorb solar sunlight, and so on, generating electricity.

[0030] This invention achieves miniaturization and modularization of a marine solar thermal power generation device, reducing equipment maintenance costs. It utilizes solar energy to heat a heat transfer medium, and then generates electricity using the temperature difference between the heated heat transfer medium and seawater. The circulation of the heat transfer medium does not require electricity; instead, it directly utilizes the wave energy of the seawater. The invention is generally divided into three parts: a solar collector assembly 1, four thermal power generation components 2, and a wave energy diaphragm pump 3. The solar collector assembly 1 is located at the top of the overall structure to absorb solar energy. The heat transfer medium and thermal power generation components are distributed on the surrounding facades, generating electricity using the temperature difference between the medium and seawater. The wave energy diaphragm pump 3 is located at the bottom of the overall structure, using the wave energy to drive the circulation of the medium. These three parts are connected by four circulation pipes to achieve the circulation of the heat transfer medium. The entire device is placed in a seawater environment and floats on the water surface. This invention can connect multiple identical heating units with chains to cover a certain area of ​​water, increasing power generation. The specific working principles of each part are as follows: There are many types of solar collector assemblies 1, and this invention... Figure 2The image shows a flat-plate solar collector, which consists of a transparent glass cover 11, a square outer shell 12, copper tube banks 13, manifolds, heat-conducting copper plates, and sealant. The square outer shell 12 and the transparent cover cover enclose the collector, which is then sealed with sealant to prevent seawater from entering. The copper tube banks are laid out flat, with both ends welded to the manifolds, and are internally interconnected. The copper tube banks are welded together with heat-conducting copper plates to ensure more even heat absorption. When the heat transfer medium enters the collector from one side of the manifold through the tube banks, it is connected to the other side of the collector. When the pipes are in operation, the temperature of the heat transfer medium rises due to the absorption of solar energy. The heated heat transfer medium stores the absorbed solar energy. The heat dissipation fins are in direct contact with the seawater, transferring heat into the seawater and keeping the outer side of the thermoelectric power generation semiconductor 22 at a low temperature. The inner heat exchange plate 23 has a serpentine flow channel 24. The heat exchange medium enters the heat exchanger from the heat transfer medium inlet 25 of the power generation unit, flows out from the heat transfer medium outlet of the power generation unit after passing through the serpentine flow channel 24, and transfers the heat of the heat exchange medium to the inner side of the thermoelectric power generation semiconductor 22, causing its temperature to rise. Through the action of heat dissipation fins 21 and heat exchanger 23, the thermoelectric semiconductor 22 has a high temperature difference on both sides, which promotes heat flow through the semiconductor, thereby generating an electromotive force, which is the principle of thermoelectric semiconductor power generation. The circulation of the heat transfer medium requires energy. This invention arranges a wave-powered diaphragm pump 3 at the bottom. This invention floats on the sea surface and rises and falls with the waves. During the process of the device rising with the waves, the square damping diaphragm plate 32 cannot immediately follow the entire device to rise due to the obstruction of seawater, but lags behind. Under the action of the connecting column 322, the diaphragm 321 on the bottom surface receives a downward pulling force, thereby increasing the diaphragm pump cavity 33, reducing the pressure in the cavity, and allowing the heat transfer medium to exit but not enter the one-way valve 3. 4. When closed, the one-way valve 31, which allows the heat transfer medium to enter but not exit, is opened, and the heat transfer medium enters the cavity from the diaphragm pump heat transfer medium inlet 36. As the device sinks with the waves, the square damping diaphragm plate 32 cannot immediately sink with the entire device due to the obstruction of seawater, but lags behind. Under the action of the connecting column 322, the diaphragm pump cavity 33 receives an upward thrust, which reduces the volume of the diaphragm pump cavity 33 and increases the pressure in the cavity. The one-way valve 31, which allows the heat transfer medium to enter but not exit, closes, and the one-way valve 34, which allows the heat transfer medium to exit but not enter, is opened, and the heat transfer medium leaves the cavity from the diaphragm pump heat transfer medium outlet 35. The above process is repeated continuously with the fluctuation of the waves to realize the circulation of the heat transfer medium.

Claims

1. A method for constructing and operating a small-scale marine solar thermal power generation device, comprising seawater (6), an insulated box (5) floating in the seawater (6), a solar collector (1) disposed on the top surface of the insulated box (5), a thermal power generation unit frame (2) connected to the bottom surface of the insulated box (5), and a wave energy diaphragm pump (3) connected to the bottom surface of the thermal power generation unit frame (2). The solar collector (1), the insulated box (5), the thermal power generation unit frame (2), and the wave energy diaphragm pump (3) form a sealed box-shaped space; characterized in that... The following steps: First, process the square outer shell (12) of the heat insulation box (5). In the square outer shell (12), heat exchange medium manifold (14), copper pipe bank (13) and heat absorption medium manifold are respectively set. Connect one end of the parallel copper pipe bank (13) to the heat exchange medium manifold (14) and connect the other end of the parallel copper pipe bank (13) to the heat absorption medium manifold. Set a transparent glass cover plate (11) at the top of the square outer shell (12) so that the heat insulation box (5) forms a solar energy collection sealed space that receives sunlight. The second step is to process the inner heat exchange plate (23). A serpentine flow channel (24) for the heat transfer medium to flow is set inside the inner heat exchange plate (23). An outer heat exchange plate (21) is processed. Heat dissipation fins are set on the outer side of the outer heat exchange plate (21). The outer heat exchange plate frame of a square thermoelectric power generation unit frame is formed by four outer heat exchange plates (21). A thermoelectric power generation semiconductor plate (22) is set on the inner side of the outer heat exchange plate (21). An inner heat exchange plate (23) is set on the inner side of the thermoelectric power generation semiconductor plate (22). The serpentine flow channels (24) in the four inner heat exchange plates (23) are connected end to end in sequence. A heat transfer medium inlet (25) of the power generation unit is set at one end of the serpentine flow channel (24). A heat transfer medium outlet of the power generation unit is set at the other end of the serpentine flow channel (24). The third step is to connect the thermoelectric power generation unit frame (2) processed in the second step to the bottom surface of the heat insulation box (5) processed in the first step; and to connect the heat transfer medium inlet (25) of the power generation unit with the heat transfer medium manifold after heat absorption. Step 4: Connect the wave energy diaphragm pump (3) to the bottom surface of the thermoelectric power generation unit frame (2); at the top of the wave energy diaphragm pump (3), a diaphragm pump cavity (33) is provided, and the four outer sides of the diaphragm pump cavity (33) are sealed together with the four inner sides of the outer heat exchange plate frame. On the top surface of the diaphragm pump cavity (33), a diaphragm pump heat transfer medium outlet (35) and a diaphragm pump heat transfer medium inlet (36) are respectively provided. On the diaphragm (321) on the bottom surface of the diaphragm pump cavity (33), a connecting column (322) is connected, and a square damper is connected at the lower end of the connecting column (322). The diaphragm plate (32) is equipped with a one-way valve (34) that allows the heat transfer medium to exit but not enter in the diaphragm pump heat transfer medium outlet (35), and a one-way valve (31) that allows the heat transfer medium to enter but not exit in the diaphragm pump heat transfer medium inlet (36); a heat medium outlet is provided on the heat transfer medium manifold after heat absorption, the heat medium outlet is connected to the heat transfer medium inlet (25) of the power generation unit, the heat transfer medium outlet of the power generation unit is connected to the heat transfer medium inlet (36) of the diaphragm pump, and the heat transfer medium outlet (35) of the diaphragm pump is connected to the cold medium inlet on the heat transfer medium manifold (14) after heat exchange; Step 5: Inject heat transfer medium into the circulating flow space of the heat transfer medium, which consists of the heat transfer medium manifold (14) after heat exchange, the parallel copper pipe bank (13), the heat transfer medium manifold after heat absorption, the serpentine flow channel (24) in the four internal heat exchange plates (23) and the diaphragm pump cavity (33). Step 6: Place the solar thermal power generation device, which has been completed in the above five steps, into the seawater (6) and let it float on the sea surface; Step 7: The waves move up and down through the square damping diaphragm plate (32), causing the volume of the diaphragm pump cavity (33) to contract and expand with the waves, so that the heat transfer medium circulates repeatedly in the heat transfer medium circulation space described in Step 5. At the same time, the heat transfer medium flowing through the copper pipe bank (13) absorbs sunlight and is heated. The heated heat transfer medium enters the serpentine flow channel (24), which creates a temperature difference between the inner and outer sides of the thermoelectric semiconductor plate (22), thus completing the power generation work. That is, the heat energy of the heat transfer medium is converted into electrical energy. The cooled heat transfer medium enters the diaphragm pump chamber (33) and is pumped into the heat transfer medium manifold (14) after heat exchange by the wave. The heat transfer medium in the heat transfer medium manifold (14) flows through the copper pipe bank (13) again to absorb solar sunlight. This cycle continues to generate electricity.

2. The construction and operation method of a small-scale marine solar thermal power generation device according to claim 1, characterized in that, A heat-conducting copper plate (15) is provided between two adjacent copper pipes in the copper pipe bank (13); a sealant (16) is provided between the transparent glass cover (11) and the heat insulation box (5); the serpentine flow channels (24) on two adjacent inner heat exchange plates (23) are connected together by a circulation pipe (4).

Images