Tidal thermal energy difference power generation device

Abstract

The application discloses a tidal thermal energy difference power generation device and relates to the field of power generation, which comprises a first dam, a second dam, a separation component, a water storage chamber, a thermal energy difference integrated power generation system, a controller and two side dams, a water storage inlet channel for connecting shallow seawater and a reservoir is arranged on the first dam, a water storage one-way valve and a first water turbine are arranged in the water storage inlet channel, a water storage outlet channel connected with the reservoir is arranged at the bottom of the second dam, a water discharge outlet channel for connecting shallow seawater and a water discharge reservoir is arranged on the first dam, a water discharge one-way valve and a second water turbine are arranged in the water discharge outlet channel, and a water discharge inlet channel connected with the water discharge reservoir is arranged at the top of the second dam; the water storage chamber is connected with deep seawater through a cold water pipe, and the deep seawater can enter the water storage chamber through the cold water pipe; the thermal energy difference integrated power generation system comprises a plurality of thermal energy difference power generation modules. The tidal thermal energy difference power generation device integrates tidal power generation and thermal energy difference power generation, and the power generation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of power generation, in particular to a tidal thermal energy difference power generation device. BACKGROUND

[0002] In the prior art, ocean energy has been utilized in various ways. For example, tidal power generation is a technology that converts kinetic energy generated by the rising and falling movement of ocean tides into electrical energy. Ocean thermal energy difference power generation is a technology that generates electricity using thermal energy formed by the temperature difference between surface seawater and deep seawater. However, in the prior art, ocean energy is often utilized by separately setting up a tidal power generation station and a thermal energy difference power generation station for power generation. This makes the existing separate power generation stations have a single function and low power generation efficiency. SUMMARY

[0003] To solve the above technical problems, the present application provides a tidal thermal energy difference power generation device that integrates tidal power generation and thermal energy difference power generation, thereby improving power generation efficiency.

[0004] To achieve the above-mentioned purpose, the present application provides the following solutions:

[0005] The application provides a tidal heat energy difference power generation device, which comprises a first dam, a second dam, a separation component, a water storage chamber, a heat energy difference integrated power generation system, a controller and two side dams, one side of the first dam is used for being in contact with seawater, the other side of the first dam is provided with the second dam, the front and back sides between the first dam and the second dam are connected through one side dam, and the separation component separates the area between the first dam, the second dam and the two side dams into a reservoir and a discharge reservoir; a water storage inlet channel for connecting the shallow seawater and the reservoir is arranged on the first dam, a water storage one-way valve and a first water turbine are arranged in the water storage inlet channel, a water storage outlet channel which is in communication with the reservoir is arranged at the bottom of the second dam, a water discharge outlet channel for connecting the shallow seawater and the discharge reservoir is arranged on the first dam, a water discharge one-way valve and a second water turbine are arranged in the water discharge outlet channel, and a water discharge inlet channel which is in communication with the discharge reservoir is arranged at the top of the second dam; the water storage chamber is in communication with deep seawater through a cold water pipe, and the deep seawater can enter the water storage chamber through the cold water pipe; the heat energy difference integrated power generation system comprises a plurality of heat energy difference power generation modules, the heat energy difference power generation module comprises a flash evaporator, an evaporator, a fresh water collector, a condenser, a first pumping mechanism, a second pumping mechanism, a third pumping mechanism and a generator, the liquid inlet of the flash evaporator is in communication with the water storage outlet channel, the gas outlet of the flash evaporator is connected with the high-temperature medium inlet of the evaporator, the high-temperature medium outlet of the evaporator is connected with the fresh water collector, the low-temperature medium outlet of the evaporator is connected with the high-temperature medium inlet of the condenser through a first pipeline, the generator is arranged on the first pipeline, the high-temperature medium outlet of the condenser is connected with the low-temperature medium inlet of the evaporator through the first pumping mechanism, the low-temperature medium inlet of the condenser is connected with the water storage chamber through the second pumping mechanism, and the low-temperature medium outlet of the condenser is connected with the water discharge inlet channel through the third pumping mechanism; and the first water turbine, the second water turbine, the generator, the flash evaporator, the first pumping mechanism, the second pumping mechanism and the third pumping mechanism are connected with the controller.

[0006] Preferably, the separation component is a separation dam, two ends of the separation dam are connected with the first dam and the second dam respectively, and the separation dam is located between the two side dams.

[0007] Preferably, the water storage inlet channel is sequentially provided with a first filter screen, a water storage one-way valve and a first water turbine from one end close to the shallow seawater to one end close to the reservoir, and the water storage one-way valve is a water storage Tesla valve.

[0008] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0009] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0010] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0011] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0012] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0013] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0014] Preferably, the water outlet passage is sequentially provided with a second filter screen, a second water turbine and a water outlet check valve from the end close to the shallow seawater to the end close to the water release reservoir, and the water outlet check valve is a water release Tesla valve.

[0015] The present application has the following technical effects relative to the prior art:

[0016] The tidal heat energy difference power generation device is characterized in that: a water storage inlet channel for connecting the shallow seawater and the water storage reservoir is arranged on the first dam, the water storage inlet channel is provided with a water storage one-way valve and a first water turbine, a water storage outlet channel connected with the water storage reservoir is arranged at the bottom of the second dam, a water discharge outlet channel for connecting the shallow seawater and the water discharge reservoir is arranged on the first dam, the water discharge outlet channel is provided with a water discharge one-way valve and a second water turbine, and a water discharge inlet channel connected with the water discharge reservoir is arranged at the top of the second dam; the water storage chamber is connected with the deep seawater through a cold water pipe, and the deep seawater can enter the water storage chamber through the cold water pipe; and the heat energy difference integrated power generation system comprises a plurality of heat energy difference power generation modules. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 A top view of the tidal heat energy difference power generation device provided by the present application;

[0019] Figure 2 A front view of the tidal heat energy difference power generation device provided by the present application;

[0020] Figure 3 A structure schematic view of the heat energy difference power generation module in the tidal heat energy difference power generation device provided by the present application;

[0021] Figure 4 A structure schematic view of the flash evaporator in the tidal heat energy difference power generation device provided by the present application;

[0022] Figure 5 A structure schematic view of the condenser in the tidal heat energy difference power generation device provided by the present application;

[0023] Figure 6 A structure schematic view of the cold water pipe in the tidal heat energy difference power generation device provided by the present application;

[0024] Figure 7 A local schematic view of the elastic support structure in the tidal heat energy difference power generation device provided by the present application.

[0025] Explanation of reference signs: 1, water storage reservoir; 2, water release reservoir; 3, water storage one-way valve; 4, water release one-way valve; 5, thermal energy difference integrated power generation system; 51, branch pipe; 52, flash evaporator; 521, outer shell; 522, liquid inlet; 523, gas outlet; 524, safety valve interface; 525, inspection cover; 53, evaporator; 54, condenser; 55, fresh water collector; 56, generator; 57, first pipeline; 58, second pipeline; 59, first conveying pipe; 510, first conveying pump; 511, second conveying pipe; 512, second conveying pump; 513, third conveying pipe; 514, third conveying pump; 6, first main pipe; 7, second main pipe; 8, first dam; 9, second dam; 10, water storage inlet passage; 11, first water turbine; 12, first filter screen; 13, water release outlet passage; 14, second water turbine; 15, second filter screen; 16, water storage outlet passage; 17, third filter screen; 18, water release inlet passage; 19, water storage chamber; 20, cold water pipe; 201, outer layer pipe; 202, interlayer pipe; 2021, elastic support structure; 203, inner layer pipe; 21, fourth filter screen; 22, sea level. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] The purpose of the present application is to provide a tidal thermal energy difference power generation device, which integrates tidal energy power generation and thermal energy difference power generation, and improves power generation efficiency.

[0028] In order to make the above-mentioned purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0029] As shown in the drawings, Figures 1-7 The present embodiment provides a tidal thermal energy difference power generation device, which comprises a first dam 8, a second dam 9, a partition component, a water storage chamber 19, a thermal energy difference integrated power generation system 5, a controller and two side dams. One side of the first dam 8 is used to contact with seawater, and the other side of the first dam 8 is provided with the second dam 9. The front and back sides between the first dam 8 and the second dam 9 are connected through a side dam. The partition component separates the area between the first dam 8, the second dam 9 and the two side dams into a water storage reservoir 1 and a water release reservoir 2.

[0030] The first dam 8 is provided with a water storage inlet channel 10 for connecting the shallow seawater and the water storage reservoir 1, the water storage inlet channel 10 is provided with a water storage one-way valve 3 and a first water turbine 11, the water storage one-way valve 3 allows the seawater to flow only towards the water storage reservoir 1 in the water storage inlet channel 10, and the first water turbine 11 generates electricity when the seawater flows to the water storage reservoir 1 through the water storage inlet channel 10. The second dam 9 is provided with a water storage outlet channel 16 at the bottom for connecting the water storage reservoir 1, and the first dam 8 is provided with a water discharge outlet channel 13 for connecting the shallow seawater and the water discharge reservoir 2, the water discharge outlet channel 13 is provided with a water discharge one-way valve 4 and a second water turbine 14, the water discharge one-way valve 4 allows the seawater to flow only towards the ocean in the water discharge outlet channel 13, and the second water turbine 14 generates electricity when the seawater in the water discharge reservoir 2 flows to the ocean through the water discharge outlet channel 13, and the second dam 9 is provided with a water discharge inlet channel 18 at the top for connecting the water discharge reservoir 2. In this embodiment, the setting height of the water discharge outlet channel 13 is lower than that of the water storage inlet channel 10.

[0031] The water storage chamber 19 is connected with the deep seawater through a cold water pipe 20, and the deep seawater can enter the water storage chamber 19 through the cold water pipe 20; the thermal energy difference integrated power generation system 5 includes a plurality of thermal energy difference power generation modules, and each thermal energy difference power generation module includes a flash evaporator 52, an evaporator 53, a fresh water collector 55, a condenser 54, a first pumping mechanism, a second pumping mechanism, a third pumping mechanism and a generator 56, the liquid inlet 522 of the flash evaporator 52 is connected with the water storage outlet channel 16, the gas outlet 523 of the flash evaporator 52 is connected with the high-temperature medium inlet of the evaporator 53, the high-temperature medium outlet of the evaporator 53 is connected with the fresh water collector 55, the low-temperature medium outlet of the evaporator 53 is connected with the high-temperature medium inlet of the condenser 54 through a first pipeline 57, the generator 56 is arranged on the first pipeline 57, the high-temperature medium outlet of the condenser 54 is connected with the low-temperature medium inlet of the evaporator 53 through the first pumping mechanism, the low-temperature medium inlet of the condenser 54 is connected with the water storage chamber 19 through the second pumping mechanism, and the low-temperature medium outlet of the condenser 54 is connected with the water discharge inlet channel 18 through the third pumping mechanism. The first water turbine 11, the second water turbine 14, the generator 56, the flash evaporator 52, the first pumping mechanism, the second pumping mechanism and the third pumping mechanism are connected with the controller.

[0032] The tidal thermal energy difference power generation device in this embodiment utilizes the tidal energy to generate electricity when the seawater flows through the first water turbine 11 and the second water turbine 14, and utilizes the thermal energy difference between the shallow seawater and the deep seawater in the thermal energy difference power generation module to generate electricity, utilizes the rise and fall of the seawater and the thermal energy contained in the seawater to produce electricity, that is, the tidal energy power generation and the thermal energy difference power generation are integrated, and the power generation efficiency is improved.

[0033] The partition component in this embodiment is a partition dam, the two ends of the partition dam are connected with the first dam 8 and the second dam 9 respectively, and the partition dam is located between the two side dams. The partition dam and one side dam form the reservoir 1, and the partition dam and the other side dam form the discharge reservoir 2.

[0034] Specifically, the first filter screen 12, the reservoir one-way valve 3 and the first water turbine 11 are sequentially arranged in the reservoir water inlet channel 10 from the end close to the shallow seawater to the end close to the reservoir 1. The first water turbine 11 in this embodiment is an axial flow water turbine, and the reservoir one-way valve 3 is a reservoir Tesla valve.

[0035] Specifically, the second filter screen 15, the second water turbine 14 and the discharge one-way valve 4 are sequentially arranged in the discharge water outlet channel 13 from the end close to the shallow seawater to the end close to the discharge reservoir 2. The second water turbine 14 in this embodiment is a bulb tubular water turbine, and the discharge one-way valve 4 is a discharge Tesla valve.

[0036] The design of the reservoir Tesla valve and the discharge Tesla valve includes a series of curved and folded channels, which will cause certain disturbance to the water flow. When the water flow passes through these complex channels, the flow rate is limited, and the pressure loss is generated at the turning places, thereby slowing down the water flow. These designs play a key role in controlling the water flow. At the same time, the water flow rate can be slowed down to a certain extent through the tortuous channels, and the water flow experiences multiple changes and direction adjustments in the channels, so that the flow rate gradually decreases.

[0037] By changing the channel size or design of the reservoir Tesla valve and the discharge Tesla valve, the flow rate through the valve can be affected. A narrower channel will increase the flow resistance, thereby reducing the flow rate; while a wider channel will allow more fluid to pass through.

[0038] The reservoir Tesla valve and the discharge Tesla valve can effectively regulate the flow rate and flow rate of the water flow through the resistance of their own structure, especially the resistance to reverse flow. In the case of reverse flow, the flow resistance generated by the complex structure in the valve is very large, thereby reducing the reverse water flow and the reverse flow rate.

[0039] The biggest feature of the reservoir Tesla valve and the discharge Tesla valve is that it does not depend on any moving parts or external drive, but completely relies on its static structure to regulate the flow rate and flow rate, which makes the Tesla valve particularly suitable for occasions that require long-term stable operation, and there is no mechanical wear or failure.

[0040] Specifically, the third filter screen 17 is arranged on the side close to the reservoir 1 of the reservoir water outlet channel 16, and the fourth filter screen 21 is arranged on the side close to the deep seawater of the cold water pipe 20.

[0041] This embodiment also includes a pressure pump. The cold water pipe 20 is arranged downwardly and tilted from one end close to the water storage chamber 19 to the end close to the deep seawater. The pressure pump is used to reduce the pressure in the water storage chamber 19. The pressure pump is connected to the controller so that the controller can control the opening and closing of the pressure pump.

[0042] like Figure 2 As shown, the water storage chamber 19 in this embodiment is located below the sea level 22. The elevation of the water storage chamber 19 is lower than that of the sea level 22, with a height difference therebetween, thereby generating a pressure difference between the liquid surfaces at both ends. A pump is first used to reduce the pressure in the water storage chamber 19, thereby increasing the pressure difference between the two ends of the cold water pipe 20. As a result, due to the strong pressure of the sea level 22, the deep seawater is pressed into the laid cold water pipe 20 under the action of pressure, and flows along the cold water pipe 20 into the water storage chamber 19. When the deep seawater fills the cold water pipe 20 and enters the water storage chamber 19, the pump is stopped, and the deep seawater continues to be pressed into the water storage chamber 19 due to the siphon principle, thereby completing the collection of the deep seawater and providing deep seawater for the condenser 54 of the thermal energy differential integrated power generation system 5.

[0043] The side of the water storage outlet channel 16 away from the water reservoir 1 is connected to the first main pipe 6, and a flow sensor is provided in the first main pipe 6. The thermal energy difference power generation module also includes a branch pipe 51, and the two ends of the branch pipe 51 are respectively connected to the first main pipe 6 and the liquid inlet 522 of the flash evaporator 52. A valve is provided on the branch pipe 51, and the flow sensor and the valve are both connected to the controller.

[0044] A first temperature sensor is installed in the water storage inlet channel 10, and a second temperature sensor is installed in the cold water pipe 20. Both the first and second temperature sensors are connected to the controller. Shallow seawater is warm, while deep seawater is cold. The first temperature sensor monitors the temperature of the shallow seawater, while the second temperature sensor monitors the temperature of the deep seawater.

[0045] In this embodiment, the thermal energy difference integrated power generation system 5 is miniaturized and modularized by using a number of small thermal energy difference power generation modules to form the thermal energy difference integrated power generation system 5 for centralized power generation.

[0046] The controller can regulate the thermal energy differential integrated power generation system 5 based on the flow rate measured by the flow sensor in the first main pipe 6. Specifically, when the flow rate is low, the number of operating thermal energy differential power generation modules is reduced to concentrate resources and improve the efficiency of each thermal energy differential power generation module; when the flow rate is high, the number of operating thermal energy differential power generation modules is increased to fully utilize energy.

[0047] Alternatively, the controller can regulate the thermal energy differential integrated power generation system 5 according to the difference between the temperature value of the shallow seawater measured by the first temperature sensor and the temperature value of the deep seawater measured by the second temperature sensor. Specifically, when the temperature difference is small, the number of operating thermal energy differential power generation modules can be reduced to reduce losses; when the temperature difference is large, the number of operating thermal energy differential power generation modules is increased to fully convert thermal energy.

[0048] Alternatively, when the tidal thermal energy differential power generation device can provide sufficient electric energy for the power grid, the controller can dynamically adjust the number of operating thermal energy differential power generation modules according to the demand of the power grid, to avoid excessive operation of thermal energy differential power generation modules leading to efficiency reduction or energy waste. Specifically, during the peak electricity consumption period, more thermal energy differential power generation modules are rapidly loaded to meet the demand; during the valley electricity consumption period, some thermal energy differential power generation modules are turned off to save operating costs.

[0049] When switching the on-off state of the thermal energy differential power generation module, there are the following three switching strategies.

[0050] The first is the on-demand loading strategy, which only operates the necessary number of thermal energy differential power generation modules under low load conditions, and keeps other thermal energy differential power generation modules in standby state; when the load increases, more thermal energy differential power generation modules are gradually loaded.

[0051] The second is the priority sorting strategy, which sets the priority of the thermal energy differential power generation modules, for example, the thermal energy differential power generation modules with the highest efficiency and the best maintenance state are preferentially started, and the thermal energy differential power generation modules with lower efficiency or damage are preferentially turned off.

[0052] The third is the energy consumption balancing strategy, when the total water flow is fixed, but the overall efficiency is reduced due to the operation of multiple modules, the modules with lower efficiency are preferentially turned off to optimize the overall performance.

[0053] Specifically, when a thermal energy differential power generation module needs to be turned off, the controller controls the valve, the first pumping mechanism, the second pumping mechanism, the third pumping mechanism and the flash evaporator 52 of the thermal energy differential power generation module to be closed. When a thermal energy differential power generation module needs to be turned on, the controller controls the valve, the first pumping mechanism, the second pumping mechanism, the third pumping mechanism and the flash evaporator 52 of the thermal energy differential power generation module to be opened.

[0054] The embodiment also includes at least one standby thermal energy differential power generation module, i.e. the standby thermal energy differential power generation module is in the closed state during normal operation. When some thermal energy differential power generation modules need to be maintained or damaged, the standby thermal energy differential power generation module can be turned on to ensure the continuous and stable operation of the system and improve the reliability and operation time of the system.

[0055] The water outlet inlet channel 18 is connected with the second main pipe 7 away from the water outlet reservoir 2, and each third pumping mechanism is connected with the second main pipe 7.

[0056] The first pumping mechanism comprises a first conveying pipe 59 and a first conveying pump 510 arranged on the first conveying pipe 59, two ends of the first conveying pipe 59 are connected with the high-temperature medium outlet of the condenser 54 and the low-temperature medium inlet of the evaporator 53 respectively, and the first conveying pump 510 is connected with the controller.

[0057] The second pumping mechanism comprises a second conveying pipe 511 and a second conveying pump 512 arranged on the second conveying pipe 511, two ends of the second conveying pipe 511 are connected with the low-temperature medium inlet of the condenser 54 and the water storage chamber 19 respectively, and the second conveying pump 512 is connected with the controller.

[0058] The third pumping mechanism comprises a third conveying pipe 513 and a third conveying pump 514 arranged on the third conveying pipe 513, two ends of the third conveying pipe 513 are connected with the low-temperature medium outlet of the condenser 54 and the second main pipe 7 respectively, and the third conveying pump 514 is connected with the controller.

[0059] In the embodiment, the first conveying pump 510 is a working medium pump, and the second conveying pump 512 and the third conveying pump 514 are water pumps.

[0060] As shown in FIGS. 1, 2 and 3, the cold water pipe 20 comprises an outer layer pipe 201, an interlayer pipe 202 and an inner layer pipe 203 which are sequentially fixed and sleeved from outside to inside, the interlayer pipe 202 comprises an elastic support structure 2021 and an adsorbing material filled in the elastic support structure 2021, and the elastic support structure 2021 in the embodiment is an elastic support frame, that is, has a gap, and the adsorbing material is filled in the gap of the elastic support frame. Figure 6 Figure 7 The cold water pipe 20 in the embodiment has a sandwich structure, and has higher resistance strength compared with a single-layer structure pipe. Since the cold water pipe 20 is partially located underwater and partially located underground, when the hydrostatic pressure or the static soil pressure acts on the outer layer pipe 201, the interlayer pipe 202 in the middle can play a buffering role, thereby reducing the damage of the hydrostatic pressure and the static soil pressure on the pipe, and when seawater flows into the inner layer pipe 203 and enters the interlayer pipe 202, the adsorbing material in the interlayer pipe 202 can play a role of adsorbing and filtering.

[0061] Specifically, the materials of the outer layer pipe 201, the inner layer pipe 203 and the elastic support structure 2021 are high-density polyethylene, wave fiber composite plastic or carbon fiber compound. The adsorbing material is activated carbon.

[0062] Specifically, the materials of the outer layer pipe 201, the inner layer pipe 203 and the elastic support structure 2021 are high-density polyethylene, wave fiber composite plastic or carbon fiber compound. The adsorbing material is activated carbon.

[0063] ​The evaporator 53 in the embodiment is a plate heat exchanger of brazed aluminum material. In the corrosive warm seawater environment, the use of the brazed aluminum material makes the service life reach more than 30 years. Meanwhile, the plate heat exchanger has small volume, good heat transfer effect and low cost, and is suitable for being used in the closed cycle.

[0064] The condenser 54 in the embodiment is an immersion heat exchanger of brazed aluminum material. As shown in the figure, the high-temperature medium inlet and the high-temperature medium outlet of the condenser 54 are the tube inlet and the tube outlet of the condenser 54 respectively, and the low-temperature medium inlet and the low-temperature medium outlet of the condenser 54 are the shell inlet and the shell outlet of the condenser 54 respectively. Figure 5

[0065] The flash evaporator 52 in the embodiment is a traditional tank flash evaporator 52, which provides a space for fluid rapid vaporization and vapor-liquid separation of the warm seawater. It can convert liquid substances into gaseous substances at a lower temperature, thereby reducing energy consumption and environmental pollution.

[0066] Specifically, the top of the shell 521 of the flash evaporator 52 is provided with a gas outlet 523, and the gas outlet 523 of the flash evaporator 52 is connected with the high-temperature medium inlet of the evaporator 53 through the second pipeline 58. One side of the shell 521 is provided with a safety valve interface 524 and a liquid inlet 522 arranged from top to bottom in sequence, and the side of the shell 521 is further provided with two inspection holes, and each inspection hole is provided with an inspection cover 525.

[0067] The generator 56 in the embodiment is a vertical axis generator 56.

[0068] The first dam 8, the second dam 9, the partition dam and the two side dams in the embodiment are in contact with seawater, and therefore protective measures are needed to prevent the dam structure from being damaged.

[0069] Specifically, the salt content of seawater and the action of tides can cause corrosion of concrete or steel structures, especially in coastal environments. Protective measures include the use of corrosion-resistant materials, that is, the selection of seawater-resistant concrete (such as seawater-resistant concrete) and corrosion-resistant steel bars and other materials. It also includes the use of coating protection, that is, the surface of the structure is treated with a corrosion-resistant coating, such as an epoxy resin coating, to reduce the erosion of salt and water to the dam body. It also includes the use of galvanized steel, that is, the steel is treated with galvanizing to increase its corrosion resistance.

[0070] ​The dam body on the sea side often needs to withstand strong sea waves and storm surges, which will cause great impact on the structure. The following measures should be taken: strengthening the dam body structure, specifically, by increasing the stability and impact resistance of the dam body, to ensure that it does not be damaged in large waves and storm surges. Reinforce the slope of the dam, specifically, design a reasonable slope and slope structure of the dam to reduce the impact of wave force. Set up a breakwater, specifically, build a breakwater or wave wall in front of the dam to disperse the energy of the sea waves and reduce the direct impact of the wave head on the dam.

[0071] The dam body on the sea side often faces the problem of soil erosion, especially under the action of tides and wave erosion. Protective measures include: planting protective vegetation, specifically, planting salt-tolerant plants such as coastal grasses and shrubs to increase the stability of the soil and prevent soil erosion. Set up slope protection measures, specifically, use materials such as stone, concrete or metal mesh to reinforce the surface of the dam to prevent soil from being washed away.

[0072] The dam body on the sea side also needs to set up an effective drainage system to prevent water accumulation from causing instability or structural deformation of the dam. Specific measures include: setting up drainage pipes, specifically, setting up drainage pipes inside or on the surface of the dam to ensure smooth water flow and prevent water accumulation. Use water-permeable materials, specifically, the surface of the dam can use water-permeable concrete or other water-permeable materials to help drainage.

[0073] The biological species on the sea side are complex, and crustaceans such as barnacles and seaweed organisms may grow on the dam structure, which can cause damage to the dam structure. Specific measures include: choosing appropriate materials: when building the dam, choose concrete with preservatives or use materials that are not easy to be attached by organisms (such as polymer-based composite materials). Surface treatment: spray anti-bio-attachment coating on the surface of the dam, such as polyurethane paint or special anti-fouling coating. Design structure: in the design stage, adopt inclined surface and streamlined structure to avoid flat surface. Regular cleaning: develop a cleaning plan and regularly use high-pressure water guns or mechanical cleaning equipment to remove attached organisms. Physical barrier: install protective nets or fences around the dam to limit the entry of certain organisms (such as seaweed and shellfish).

[0074] The dam body on the sea side can also set up a structure monitoring and early warning system, specific measures include: install sensors, specifically, install vibration sensors, stress sensors and other devices on the dam to monitor the status of the dam in real time. Intelligent early warning system, specifically, by integrating meteorological, ocean monitoring data and real-time monitoring system, to early warning possible storm surge or extreme weather, to take measures in advance.

[0075] After extreme weather or natural disasters occur, the emergency response mechanism of the dam body is very important, and specific measures include: emergency repair materials, specifically, stockpile of fast-curing repair materials that can perform emergency repair in the shortest time. Emergency plan, specifically, establish an emergency response plan to ensure that measures are taken quickly when the dam body is damaged to prevent the disaster from spreading. Through these various protective measures, the service life of the seaside dam body can be effectively extended, ensuring its stability and functionality under various natural conditions.

[0076] The specific working process is as follows: during the high tide, the shallow seawater passes through the first water turbine 11 to generate tidal power, and then the shallow seawater enters the reservoir 1, and the shallow seawater is guided into the heat difference integrated power generation system 5 through the water storage outlet channel 16 and the first main pipe 6, the storage chamber 19 starts to pump the deep seawater, and the deep seawater is pumped into the heat difference integrated power generation system 5 through the second delivery pump 512, the heat difference integrated power generation system 5 starts to generate power using the heat difference, and finally the seawater after heat exchange is pumped back to the discharge reservoir 2 through the third delivery pump 514, and during the ebb tide, the seawater in the discharge reservoir 2 is discharged and passes through the second water turbine 14 to generate tidal power. Complete the overall power production process.

[0077] The process of generating power using the heat difference is as follows: the shallow seawater entering the reservoir 1 is guided into the flash evaporator 52, which is subjected to low-pressure treatment to reduce the boiling point of the seawater, so that the shallow seawater evaporates into gas and enters the evaporator 53 along the pipeline, and the heat energy brought by the gas evaporates the low-boiling-point working fluid solution in the evaporator 53, the shallow seawater is condensed into fresh water in the evaporator 53, and flows into the fresh water collector 55, the working fluid gas evaporated from the evaporator 53 passes through the generator 56 along the pipeline to generate power, and continues to enter the condenser 54 along the pipeline, and the working fluid gas is condensed by the deep seawater, and finally is pumped back into the evaporator 53 by the first delivery pump 510 to complete a cycle.

[0078] In the specification, specific examples are used to illustrate the principles and embodiments of the application. The above examples are only used to help understand the method of the application and its core idea; at the same time, for those skilled in the art, according to the idea of the application, the specific embodiments and application scope will be changed. In view of the above, the content of the specification should not be understood as a limitation of the application.

Claims

1. A tidal thermal energy difference power generation device, characterized in that: The invention comprises a first dam, a second dam, a partition, a water storage chamber, a thermal energy difference integrated power generation system, a controller and two side dams, wherein one side of the first dam is used to contact with seawater, and the other side of the first dam is provided with the second dam, and the front and rear sides between the first dam and the second dam are connected by a side dam, and the partition divides the first dam, the second dam and the area between the two side dams into a water reservoir and a water discharge reservoir; the first dam is provided with a device for connecting shallow seawater and the water reservoir A water storage inlet channel is provided in the water storage inlet channel, a water storage one-way valve and a first turbine are provided in the water storage inlet channel, a water storage outlet channel communicating with the water storage reservoir is provided at the bottom of the second dam, a water discharge outlet channel for communicating with shallow seawater and the discharge reservoir is provided on the first dam, a water discharge one-way valve and a second turbine are provided in the discharge outlet channel, and a water discharge inlet channel communicating with the discharge reservoir is provided on the top of the second dam; the water storage chamber is connected to deep seawater through a cold water pipe, and deep seawater can enter the water storage chamber through the cold water pipe; The thermal energy difference integrated power generation system includes multiple thermal energy difference power generation modules, each of which includes a flash evaporator, an evaporator, a fresh water collector, a condenser, a first pumping mechanism, a second pumping mechanism, a third pumping mechanism, and a generator. The liquid inlet of the flash evaporator is connected to the water storage outlet channel, the gas outlet of the flash evaporator is connected to the high-temperature medium inlet of the evaporator, the high-temperature medium outlet of the evaporator is connected to the fresh water collector, and the low-temperature medium outlet of the evaporator is connected to the high-temperature medium inlet of the condenser via a first pipeline. The generator is disposed on the first pipeline. The high-temperature medium outlet of the condenser is connected to the low-temperature medium inlet of the evaporator via the first pumping mechanism, the low-temperature medium inlet of the condenser is connected to the water storage chamber via the second pumping mechanism, and the low-temperature medium outlet of the condenser is connected to the drain water inlet channel via the third pumping mechanism. The first turbine, the second turbine, the generator, the flash evaporator, the first pumping mechanism, the second pumping mechanism, and the third pumping mechanism are all connected to the controller.

2. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The partition component is a partition dam, both ends of which are connected to the first dam and the second dam respectively, and the partition dam is located between the two side dams.

3. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The water storage inlet channel is provided with a first filter screen, a water storage one-way valve and a first turbine in sequence from one end close to the shallow sea water to one end close to the reservoir, and the water storage one-way valve is a water storage Tesla valve.

4. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The drainage outlet channel is provided with a second filter screen, a second turbine and a drainage one-way valve in sequence from one end close to the shallow sea water to one end close to the drainage reservoir. The drainage one-way valve is a drainage Tesla valve.

5. The tidal thermal energy difference power generation device according to claim 1, characterized in that: A third filter is provided on a side of the water storage outlet channel close to the water reservoir, and a fourth filter is provided on a side of the cold water pipe close to the deep sea water.

6. The tidal thermal energy difference power generation device according to claim 1, characterized in that: It also includes a pressure pump. The cold water pipe is arranged to be tilted downward from one end close to the water storage chamber to the end close to the deep sea water. The pressure pump is used to reduce the pressure in the water storage chamber.

7. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The water storage and outlet channel is connected to a first main pipe on a side away from the water reservoir, and a flow sensor is provided in the first main pipe. The thermal energy difference power generation module also includes a branch pipe, and the two ends of the branch pipe are respectively connected to the first main pipe and the liquid inlet of the flash evaporator. A valve is provided on the branch pipe, and the flow sensor and the valve are both connected to the controller.

8. The tidal thermal energy difference power generation device according to claim 7, characterized in that: A first temperature sensor is provided in the water storage and water inlet channel, and a second temperature sensor is provided in the cold water pipe. Both the first temperature sensor and the second temperature sensor are connected to the controller.

9. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The side of the drainage water inlet channel away from the drainage reservoir is connected to a second main pipe, and each of the third pumping mechanisms is connected to the second main pipe.

10. The tidal thermal energy difference power generation device according to claim 1, characterized in that: The cold water pipe includes an outer layer tube, an interlayer tube and an inner layer tube fixedly mounted in sequence from the outside to the inside. The interlayer tube includes an elastic support structure and an adsorption material filled in the elastic support structure. A plurality of through holes are provided on the tube wall of the inner layer tube, and the aperture of the through holes is smaller than the particle size of the adsorption material.

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