CN102852702A - Bypass booster type seat water desalination and power generation device utilizing tidal energy for two-way drive - Google Patents

Abstract

The invention discloses a bypass booster type seat water desalination and power generation device utilizing tidal energy for two-way drive. The device comprises a water storage tank, a first water turbine, a second water turbine, a transmission box, a gear box, a high pressure pump, a reverse osmosis membrane assembly, a booster pump, a turbine motor, a generator and a motor. The device impacts the first water turbine and the second water turbine to rotate respectively in the process that high level seawater in the sea in a rising tide flows into the water storage tank and in the process that high level seawater in the water storage tank in an ebb tide flows to the sea, utilizes the gear box to drive the high pressure pump to work to produce high pressure seawater and utilizes the booster pump to form booster bypass stabilizing system water pressure. High pressure dense seawater discharged from the reverse osmosis membrane assembly impacts the turbine motor to rotate, and the turbine motor drives the generator to rotate to produce electric energy to achieve comprehensive utilization and conversion of tidal energy. A system does not require additional power and is low in operation cost. The tidal energy is a renewable energy source, has sustainable development performance and has good social value and application value.

Description

Bypass pressurized seawater desalination and power generation device driven bidirectionally by tidal energy

This application is a divisional application with a filing date of December 4, 2010 in China, application number 2010105815528, and a divisional application titled "Method and device for seawater desalination and power generation driven by tidal energy".

technical field

The present invention relates to a seawater desalination and power generation device, especially a seawater desalination and power generation device driven by tidal energy.

Background technique

Water is an important substance for the survival of human beings and all living things. The earth has sufficient water resources. The total amount of water reaches 1.4 billion cubic kilometers. However, there are very few fresh water resources that can be used by human beings, and the reserves only account for the total amount of water in the world. 2.53% of the total, and 68.7% of the fresh water exists in the form of solid glaciers, which are difficult to exploit. The only fresh water that humans can directly use is groundwater, lake fresh water, and river bed water. The sum of these three accounts for about 0.77% of the total water on the earth. , leading to serious water shortage in more than 80 countries and regions in the world, accounting for 60% of the earth's land area, 1.5 billion people lack drinking water, and 2 billion people cannot get safe water. The crisis of fresh water resources has become the second only Due to global warming, the second largest environmental problem in the world, the lack and continuous reduction of fresh water resources seriously threaten the drinking water safety of urban residents and the health of the people. Solving the crisis of fresh water resources and developing new safe water sources will become the top priority of national development.

Oceans store 97% of the world's water, and seawater desalination can solve the problem of scarcity of freshwater resources. At present, there are many methods for seawater desalination, such as distillation, reverse osmosis, freezing, electrodialysis and solvent extraction. Among these methods, reverse osmosis is the fastest-growing method, but the cost of fresh water produced by reverse osmosis seawater desalination is still relatively high. One of the main reasons is that most of the current reverse osmosis seawater desalination uses high pressure. The high-pressure pump is used to produce high-pressure seawater, and the high-pressure pump is a high-energy-consuming device that consumes a lot of electric energy. Using this equipment to produce 1 cubic meter of fresh water consumes 3-10 degrees of electric energy, thereby increasing the cost of reverse osmosis seawater desalination.

The use of traditional energy sources to produce fresh water will increase carbon emissions, thereby reducing environmental quality, which in turn pollutes fresh water sources available to humans.

Ocean energy is a kind of renewable energy, which is inexhaustible and inexhaustible. A typical method of gathering ocean energy is wave energy or tidal energy, which uses tapered channels to send seawater to a certain height to form a potential difference. However, using this method to increase the height of seawater is limited, so only relying on flow The method of improving the potential energy of seawater by the channel structure is far from enough. Because the pressure difference is not large, its efficiency is often relatively low and it is not easy to use. Analyzing the current status of ocean energy development and utilization, it is not difficult to see that in order to greatly increase the energy density of ocean energy, designing an effective energy gathering device to obtain high-pressure seawater is crucial to the development and utilization of ocean energy.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a method and device for seawater desalination and power generation driven by tidal energy.

The technical solution adopted by the present invention to solve its technical problems is:

A method of seawater desalination and power generation driven by tidal energy. A storage tank is built on the seashore, and the high-level seawater in the sea is used to impact the rotation of the water turbine and/or the storage tank after ebb tide during the process of flowing into the storage tank when the tide is high. The high-level seawater in the middle impacts the turbine to rotate in the process of flowing to the sea. The turbine drives the high-pressure pump to work through the speed increasing device to generate high-pressure seawater. The high-pressure seawater flows through the reverse osmosis membrane module to produce fresh water, and the high-pressure concentrated seawater discharged from the reverse osmosis membrane module The impingement turbine rotates, and the turbine drives the generator to generate electric energy, realizing the comprehensive utilization of ocean energy.

There can be many kinds of devices for realizing the method of the present invention, and the present invention provides 8 devices with different structures.

The first device consists of:

【A1】Reservoir, the seawater inlet of the reservoir is provided with a one-way sluice;

[B1], the water turbine, its water inlet is connected to the water outlet of the reservoir, and the water outlet is connected to the sea;

[C1], gearbox, the power input shaft of the gearbox is connected with the power output shaft of the water turbine;

[D1], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir;

[E1], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module is connected with the water outlet of the high-pressure pump;

[F1], the turbine, its water inlet is connected to the concentrated seawater outlet of the reverse osmosis membrane module, and its water outlet is connected to the sea;

[G1], generator, the power input shaft of the generator is connected with the power output shaft of the turbine.

The second device consists of:

【A2】Reservoir, the seawater inlet of the reservoir is provided with a one-way sluice;

[B2], the water turbine, its water inlet is connected to the water outlet of the reservoir, and the water outlet is connected to the sea;

[C2], gearbox, the power input shaft of the gearbox is connected with the power output shaft of the water turbine;

[D2], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir;

[E2], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module communicates with the water outlet of the high-pressure pump through the first one-way valve;

[F2], the booster pump, its water inlet communicates with the pipeline connecting the first check valve and high-pressure pump through the second check valve, and the water outlet of the booster pump communicates with the first check valve and the pipeline The connecting pipeline of the reverse osmosis membrane module is connected;

[G2], the turbine, its water inlet is connected to the concentrated seawater outlet of the reverse osmosis membrane module, and its water outlet is connected to the sea;

[H2], generator, the power input shaft of the generator is connected with the power output shaft of the turbine;

[I2], storage battery, the power supply of the storage battery is provided by the generator;

[J2], electric motor, the working power of the electric motor is provided by the storage battery, and the power output shaft of the electric motor is connected with the power input shaft of the booster pump.

The third device consists of:

【A3】Reservoir, the seawater inlet of the reservoir is provided with a one-way sluice;

[B3], the water turbine, its water inlet is connected with the water outlet of the reservoir, and the water outlet is connected with the sea;

[C3], gearbox, the power input shaft of the gearbox is connected with the power output shaft of the water turbine;

[D3], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir through the first one-way valve;

[E3], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module is connected with the water outlet of the high-pressure pump;

[F3], the booster pump, its water inlet communicates with the seawater in the sea or the seawater in the reservoir through the second one-way valve, and the outlet of the booster pump is connected to the connection between the high-pressure pump and the reverse osmosis membrane module pipeline connection;

[G3], the turbine, its water inlet is connected to the concentrated seawater outlet of the reverse osmosis membrane module, and its water outlet is connected to the sea;

[H3], generator, the power input shaft of the generator is connected with the power output shaft of the turbine;

[I3], storage battery, the power supply of the storage battery is provided by the generator;

[J3], electric motor, the working power of the electric motor is provided by the storage battery, and the power output shaft of the electric motor is connected with the power input shaft of the booster pump.

The device of the fourth structure includes:

【A4】Reservoir, the seawater inlet of the reservoir is provided with a one-way sluice;

[B4], the water turbine, its water inlet is connected to the water outlet of the reservoir, and the water outlet is connected to the sea;

[C4], gearbox, its power input shaft is connected with the power output shaft of the water turbine; the power input shaft of the gearbox is provided with two sets of driving gears, and correspondingly two sets of driven gears are also provided, one of which is The driven gears can be meshed with or separated from one group of driving gears, and the other group of driven gears can be meshed with or separated from the other group of driving gears, and each of the two groups of driven gears is provided with a power output shaft;

[D4], the first high-pressure pump, its power input shaft is connected to one of the power output shafts of the gearbox, and the water inlet of the first high-pressure pump is connected to seawater or a reservoir in the sea through the first one-way valve The sea water in the communication;

[E4], the second high-pressure pump, the power of the second high-pressure pump is smaller than the power of the first high-pressure pump, and the power input shaft of the second high-pressure pump is connected to the other power output shaft of the gearbox, so The water inlet of the second high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir through the second one-way valve;

[F4], two sets of reverse osmosis membrane components are provided with fresh water outlet and concentrated seawater outlet, and the water inlet of one set of reverse osmosis membrane components is connected with the pipe connecting the water outlet of the first high-pressure pump and the water outlet of the second high-pressure pump The water inlet of another group of reverse osmosis membrane components communicates with the pipeline connecting the water outlet of the first high-pressure pump and the water outlet of the second high-pressure pump through a solenoid valve;

[G4], the turbine, its water inlet is connected to the concentrated seawater outlet of the two sets of reverse osmosis membrane modules, and the water outlet of the turbine is connected to the sea;

[H4], generator, the power input shaft of the generator is connected with the power output shaft of the turbine.

The fifth device includes:

[A5], a water storage tank, the water storage tank is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline and the water outlet pipeline are respectively provided with a first solenoid valve and a second solenoid valve;

[B5], the first water turbine is arranged on the water inlet pipeline of the water storage tank;

[C5], the second water turbine is arranged on the water outlet pipeline of the reservoir;

[D5], the transmission box, the transmission box is provided with two sets of input end driving gears and a set of input end driven gears, the input end driven gears can be meshed with or separated from one of the input end driving gears respectively, the said The driving gears at the input end are each provided with a power input shaft, one of the power input shafts of the transmission box is connected to the power output shaft of the first water turbine, and the other power input shaft is connected to the power output shaft of the second water turbine;

[E5], gearbox, the power input shaft of the gearbox is connected to the power output shaft of the transmission box;

[F5], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir;

[G5], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module is connected with the water outlet of the high-pressure pump;

[H5], the turbine, its water inlet is connected to the concentrated seawater outlet of the reverse osmosis membrane module, and the water outlet is connected to the sea;

[I5], generator, the power input shaft of the generator is connected with the power output shaft of the turbine.

The sixth device includes:

[A6], a water storage tank, the water storage tank is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline and the water outlet pipeline are respectively provided with a first solenoid valve and a second solenoid valve;

[B6], the first water turbine is arranged on the water inlet pipeline of the storage tank;

[C6], the second water turbine is arranged on the water outlet pipeline of the reservoir;

[D6], the transmission box, the transmission box is provided with two sets of input end driving gears and a set of input end driven gears, the input end driven gears can be respectively meshed with or separated from one set of input end driving gears, the said The driving gears at the input end are each provided with a power input shaft, one of the power input shafts of the transmission box is connected to the power output shaft of the first water turbine, and the other power input shaft is connected to the power output shaft of the second water turbine;

[E6], gearbox, the power input shaft of the gearbox is connected to the power output shaft of the transmission box;

[F6], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir;

[G6], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module communicates with the water outlet of the high-pressure pump through the first one-way valve;

[H6], the booster pump, its water inlet communicates with the pipeline connecting the first check valve and high-pressure pump through the second one-way valve, and the water outlet of the booster pump communicates with the first one-way valve and the pipeline The connecting pipeline of the reverse osmosis membrane module is connected;

[I6], the turbine, its water inlet is connected to the concentrated seawater outlet of the reverse osmosis membrane module, and the water outlet is connected to the sea;

[J6], generator, the power input shaft of the generator is connected with the power output shaft of the turbine;

[K6], storage battery, the power supply of the storage battery is provided by the generator;

[L6], the electric motor, the working power of the electric motor is provided by the storage battery, and the power output shaft of the electric motor is connected with the power input shaft of the booster pump.

the

The seventh device includes:

[A7], a water storage tank, the water storage tank is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline and the water outlet pipeline are respectively provided with a first solenoid valve and a second solenoid valve;

[B7], the first water turbine is arranged on the water inlet pipeline of the storage tank;

[C7], the second water turbine is arranged on the water outlet pipeline of the reservoir;

[D7] Transmission box, the transmission box is provided with two sets of input drive gears and a set of input driven gears, the input driven gears can be meshed with or separated from one set of input drive gears, the input Each end drive gear is provided with a power input shaft, one of the power input shafts of the transmission box is connected to the power output shaft of the first water turbine, and the other power input shaft is connected to the power output shaft of the second water turbine;

[E7], gearbox, the power input shaft of the gearbox is connected to the power output shaft of the transmission box;

[F7], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir through the first one-way valve;

[G7], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module is connected with the water outlet of the high-pressure pump;

[H7], the booster pump, its water inlet communicates with the seawater in the sea or the seawater in the reservoir through the second one-way valve, and the outlet of the booster pump is connected to the connection between the high-pressure pump and the reverse osmosis membrane module pipeline connection;

[I7], the turbine, its water inlet is connected with the concentrated seawater outlet of the reverse osmosis membrane module, and the water outlet is connected with the sea;

[J7], generator, the power input shaft of the generator is connected with the power output shaft of the turbine;

[K7], accumulator, the power supply of the accumulator is provided by the generator;

[L7], the electric motor, the working power of the electric motor is provided by the storage battery, and the power output shaft of the electric motor is connected with the power input shaft of the booster pump.

The eighth device includes:

[A8], a water storage tank, the water storage tank is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline and the water outlet pipeline are respectively provided with a first solenoid valve and a second solenoid valve;

[B8], the first water turbine is arranged on the water inlet pipeline of the storage tank;

[C8], the second water turbine is arranged on the water outlet pipeline of the reservoir;

[D8], the transmission box, the transmission box is provided with two sets of input end driving gears and a set of input end driven gears, the input end driven gears can be respectively meshed with or separated from one set of input end driving gears, the said The driving gears at the input end are each provided with a power input shaft, one of the power input shafts of the transmission box is connected to the power output shaft of the first water turbine, and the other power input shaft is connected to the power output shaft of the second water turbine;

[E8], gearbox, its power input shaft is connected to the power output shaft of the transmission box; the power input shaft of the gearbox is provided with two sets of driving gears, and correspondingly two sets of driven gears are also provided, one of which is One set of driven gears can engage or separate from one set of driving gears, and the other set of driven gears can engage or separate from another set of driving gears, and each of the two sets of driven gears is provided with a power output shaft;

[F8], the first high-pressure pump, its power input shaft is connected to one of the power output shafts of the gearbox, and the water inlet of the first high-pressure pump is connected to seawater or a reservoir in the sea through the first one-way valve The sea water in the communication;

[G8], the second high-pressure pump, the power of the second high-pressure pump is smaller than the power of the first high-pressure pump, and the power input shaft of the second high-pressure pump is connected to the other power output shaft of the gearbox, so The water inlet of the second high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir through the second one-way valve;

[H8], two sets of reverse osmosis membrane components are provided with fresh water outlet and concentrated seawater outlet, and the water inlet of one set of reverse osmosis membrane components is connected with the pipe connecting the water outlet of the first high-pressure pump and the water outlet of the second high-pressure pump The water inlet of another group of reverse osmosis membrane components communicates with the pipeline connecting the water outlet of the first high-pressure pump and the water outlet of the second high-pressure pump through a solenoid valve;

[I8], the turbine, its water inlet is connected with the concentrated seawater outlet of the two groups of reverse osmosis membrane components, and the water outlet of the turbine is connected with the sea;

[J8], generator, the power input shaft of the generator is connected with the power output shaft of the turbine.

The beneficial effect of the present invention is: the present invention utilizes the high-level seawater in the sea to impact the rotation of the water turbine during the process of flowing into the storage tank during high tide and/or the high-level seawater in the water storage tank to impact the rotation of the water turbine during the process of flowing into the sea after ebb tide, The water turbine drives the high-pressure pump to generate high-pressure seawater. The high-pressure seawater is desalinated by the reverse osmosis membrane module. The high-pressure concentrated seawater discharged from the reverse osmosis membrane module hits the turbine to rotate, and the turbine drives the generator to rotate to generate electric energy, realizing the comprehensive utilization and conversion of tidal energy The generated electric energy can also be stored in the storage battery. When the high-pressure seawater pressure caused by the low tidal range is insufficient, the electric energy is used to supply the electric motor to drive the booster pump to supplement the water inlet pressure of the membrane module, so that the seawater desalination process can be carried out at a stable high pressure. Underwater. The emissions in the process of energy utilization and conversion are non-polluting, clean and environmentally friendly, the system does not need additional power, and the operating cost is low. Tidal energy is a renewable energy with sustainable development and good social benefits and application value.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural schematic diagram of the first seawater desalination and power generation device driven by tidal energy;

Fig. 2 is the structural schematic diagram of the second seawater desalination and power generation device driven by tidal energy;

Fig. 3 is a structural schematic diagram of a third seawater desalination and power generation device driven by tidal energy;

Fig. 4 is a schematic structural diagram of a fourth seawater desalination and power generation device driven by tidal energy;

Fig. 5 is a schematic structural diagram of a fifth seawater desalination and power generation device driven by tidal energy;

Fig. 6 is a schematic structural diagram of the sixth seawater desalination and power generation device driven by tidal energy;

Fig. 7 is a structural schematic diagram of the seventh seawater desalination and power generation device driven by tidal energy;

Fig. 8 is a structural schematic diagram of an eighth seawater desalination and power generation device driven by tidal energy.

Detailed ways

A method of seawater desalination and power generation driven by tidal energy. Firstly, a storage tank is built on the seashore, and the high-level seawater in the sea is used to impact the rotation of the water turbine and/or store water after ebb tide when the high tide flows into the storage tank. The high-level seawater in the pool impacts the water turbine to rotate in the process of flowing to the sea. The water turbine drives the high-pressure pump through the gearbox to generate high-pressure seawater. The high-pressure seawater first flows through the reverse osmosis membrane module to produce fresh water. About 60% of the original seawater, the concentrated seawater at this time still maintains high pressure, and the high-pressure concentrated seawater discharged from the reverse osmosis membrane module flows through the turbine and impacts the turbine to rotate, and the turbine drives the generator to generate electricity to realize the comprehensive utilization of ocean energy.

The device for realizing the above method can have many kinds of structures, and the present invention provides 8 kinds of devices with different structures.

With reference to Fig. 1, first kind of device comprises:

[A1], a reservoir 102, the seawater inlet 100 of the reservoir 102 is provided with a one-way sluice 101;

[B1], water turbine 106, its water inlet 105 communicates with the water outlet 103 of the described reservoir 102, and the water outlet 107 communicates with the sea;

[C1], gearbox 111, the power input shaft 110 of the gearbox 111 is connected with the power output shaft 108 of the hydraulic turbine 106 through a coupling 109;

[D1], high-pressure pump 115, its power input shaft 113 is connected with the power output shaft 112 of the gearbox 111 through a coupling 114, and the water inlet 117 of the high-pressure pump 115 is connected to the seawater in the sea through a one-way valve 121 Or the seawater in the reservoir 102 is connected;

[E1], the reverse osmosis membrane module 123 is provided with a fresh water outlet 125 and a concentrated seawater outlet 126, and the water inlet 124 of the reverse osmosis membrane module 123 communicates with the water outlet 116 of the high-pressure pump 115;

[F1], the turbine 129, its water inlet 128 communicates with the concentrated seawater outlet 126 of the reverse osmosis membrane module 123, and the water outlet 130 communicates with the sea;

[G1], generator 134, the power input shaft 132 of the generator 134 is connected to the power output shaft 131 of the turbine 129 through a coupling 133.

The water level in the storage tank 102 is different, and the kinetic energy impacting the water turbine 106 is also different. In order to ensure that the water turbine 106 can run smoothly, a water gate 104 is arranged between the water outlet 103 of the water storage tank 102 and the water inlet 105 of the water turbine 106. The water gate 104 is connected with a flow regulator 137, and the flow regulator 137 outputs a signal to adjust the opening of the water gate 104 according to the rotation speed of the water turbine 106, so that the system can obtain a stable water pressure.

Part of the electric energy generated by the generator 134 is stored in the storage battery 135, which meets the needs of the system, and the excess electric energy can be sent to the grid.

Because there is a large amount of sundries in seawater, seawater pretreatment device should be added on the pipeline that seawater enters equipment, therefore, the water inlet of high-pressure pump 115 of the present invention is provided with seawater coarse filter 120 and antiscalant additive 119, to seawater Filtrate, remove sundries, prevent sundries from damaging the equipment and the inner wall of the equipment, install a precision filter 118 at the water outlet 116 of the high-pressure pump 115 to further remove the sundries, and set an accumulator 122 before the water inlet 124 of the reverse osmosis membrane module 123, so that The water pressure inside the reverse osmosis membrane module 123 is stable.

When the tide rises, the seawater level in the sea rises, and the seawater enters the reservoir 102 through the one-way sluice 101. Since the one-way sluice 101 is one-way, the seawater in the reservoir 102 will not pass through the one-way sluice when the tide ebbs. 101 returns to the sea. During the high tide process, the sluice 104 and the one-way valve 121 are closed; only when the water level of the sea drops back to a certain height, and the seawater level in the reservoir 102 has a sufficient height difference with the sea level, the sluice 104 and the one-way valve are closed. Valve 121 is opened.

When the sluice 104 is opened, due to the water level difference, the seawater in the reservoir 102 passes through the sluice 104, the water turbine 106, and finally flows out from the water outlet 107 of the water turbine 106 and is discharged into the sea. When the seawater passes through the water turbine 106, it will drive the water turbine 106 Rotate to drive the power output shaft 108 of the water turbine 106 to output shaft power.

The gearbox 111 mainly plays the role of transmission and speed change. There are two ways to match the gearbox 111 and the high-pressure pump 115: one is that the gearbox 111 is a gearbox with a low transmission ratio, and the high-pressure pump 115 is a multi-stage high-pressure pump or a reciprocating pump. The second is that the gearbox 111 is a gearbox with a high transmission ratio, and the high-pressure pump 115 is a single-stage high-speed high-pressure pump.

When the system starts to operate, the one-way valve 121 is opened. At this time, seawater enters the high-pressure pump 115 from the water inlet 117 of the high-pressure pump 115, and the pressurized high-pressure seawater flows out from the water outlet 116 of the high-pressure pump 115.

The seawater flowing out from the water outlet 116 of the high-pressure pump 115 enters the reverse osmosis membrane module 123, the fresh water produced flows out from the fresh water outlet 125, and flows into the fresh water collection tank 127, and the remaining high-pressure concentrated seawater flows from the concentrated seawater outlet 126 The concentrated seawater flows out from the water inlet 128 of the turbine 129, drives the turbine 129 to rotate, and drives the generator 134 to generate electricity. The seawater is directly discharged into the sea, and the low-pressure concentrated seawater flowing out from the water outlet 130 of the turbine 129 can also be further processed and utilized.

Referring to Figure 2, the second device includes:

[A2], the reservoir 202, the seawater inlet 200 of the reservoir 202 is provided with a one-way sluice 201;

[B2], water turbine 206, its water inlet 205 is communicated with the water outlet 203 of described reservoir 202, and water outlet 207 is communicated with the sea; Set between the water inlet 205 of water turbine 206 and the water outlet 203 of reservoir 202 There is a water gate 204, and the water gate is connected with a flow regulator 208;

[C2], gearbox 212, the power input shaft 211 of the gearbox 212 is connected with the power output shaft 209 of the water turbine 206 through a coupling 210;

[D2], high-pressure pump 216, its power input shaft 215 is connected with the power output shaft 213 of the gearbox 212 through a coupling 214, and the water inlet 217 of the high-pressure pump 216 is connected to the sea through the third one-way valve 241 The seawater in the seawater or the seawater in the reservoir 202 is connected;

[E2], the reverse osmosis membrane module 222 is provided with a fresh water outlet 229 and a concentrated seawater outlet 230, and the water inlet 228 of the reverse osmosis membrane module 222 communicates with the water outlet 218 of the high-pressure pump 216 through the first one-way valve 220, The fresh water outlet 229 is connected with a fresh water collection tank 232;

[F2], the booster pump 225, its water inlet 224 communicates with the pipeline connecting the first check valve 220 and the high-pressure pump 216 through the second check valve 223, and the water outlet 227 of the booster pump 225 communicates with the communication station The connecting pipeline of the first one-way valve 220 and the reverse osmosis membrane module 222 is communicated;

[G2], the turbine 234, its water inlet 231 communicates with the concentrated seawater outlet 230 of the reverse osmosis membrane module 222, and the water outlet 233 communicates with the sea;

[H2], generator 238, the power input shaft 237 of this generator 238 is connected with the power output shaft 235 of turbine 234 by coupling 236;

[I2], accumulator 239, the power supply of this accumulator 239 is provided by generator 238;

[J2], the electric motor 226, the working power of the electric motor 226 is provided by the battery 239, and the power output shaft 245 of the electric motor 226 is connected with the power input shaft 244 of the booster pump 225.

The working principle of the device water turbine 206, high-pressure pump 216, reverse osmosis membrane module 222, turbine 234, generator 238, water gate 204, flow regulator 208 is the same as that of the first device, seawater coarse filter 242, scale inhibitor The connection mode and effect of agent additive 243, precision filter 219 and accumulator 221 are also the same as the first device.

The booster pump 225 forms a branch water flow. If the water pressure of the water outlet 218 of the high-pressure pump 216 is relatively high, the first check valve 220 is opened, the second check valve 223 is closed, and the high-pressure water directly flows into the reverse flow through the first check valve 220. The water inlet 228 of the permeable membrane module 222, when the water pressure of the water outlet 218 of the high-pressure pump 216 is insufficient, the first check valve 220 is closed, the second check valve 223 is opened, and the booster pump 225 is driven by the motor 226 work, the high-pressure water at the outlet of the high-pressure pump 216 flows into the water inlet 224 of the booster pump 225 through the second check valve 223, the booster pump 225 pressurizes the high-pressure water, and the boosted high-pressure water flows into the reverse osmosis membrane module 222 Water inlet 228. the

Referring to Figure 3, the third device includes:

[A3], the reservoir 302, the seawater inlet 300 of the reservoir 302 is provided with a one-way sluice 301;

[B3], water turbine 306, its water inlet 305 is communicated with the water outlet 303 of described reservoir 302, and water outlet 307 is communicated with the sea, is provided with between the water inlet 305 of water turbine 306 and the water outlet 303 of reservoir 302 Water gate 304, water gate 304 is connected with flow regulator 335;

[C3], gearbox 311, the power input shaft 310 of the gearbox 311 is connected to the power output shaft 308 of the water turbine 306 through a coupling 309;

[D3], high-pressure pump 336, its power input shaft 314 is connected with the power output shaft 312 of the gearbox 311 through a coupling 313, and the water inlet 339 of the high-pressure pump 336 is connected to the sea through the first one-way valve 338 The seawater in or the seawater in the reservoir 302 is communicated;

[E3], the reverse osmosis membrane module 317 is provided with a fresh water outlet 319 and a concentrated seawater outlet 320, and the water inlet 318 of the reverse osmosis membrane module 317 communicates with the water outlet 337 of the high-pressure pump 336;

[F3], the booster pump 331, its water inlet 341 communicates with the seawater in the sea or the seawater in the reservoir 302 through the second one-way valve 340, and the water outlet 342 of the booster pump 331 communicates with the high-pressure pump 336 Communicate with the connecting pipeline of the reverse osmosis membrane module 317;

[G3], the turbine 323, its water inlet 321 communicates with the concentrated seawater outlet 320 of the reverse osmosis membrane module 317, and the water outlet 322 communicates with the sea;

[H3], generator 327, the power input shaft 326 of the generator 327 is connected with the power output shaft 324 of the turbine 323 through a coupling 325, and the electric energy output end of the generator 327 can be connected to the storage battery 328 and the grid;

[I3], accumulator 328, the power supply of this accumulator 328 is provided by generator 327;

[J3], the electric motor 330, the working power of the electric motor 330 is provided by the battery 328, and the power output shaft 344 of the electric motor 330 is connected with the power input shaft 343 of the booster pump 331.

The working mode of this system is the same as that of the second device, the difference is that booster pump 331 bypasses supplementary water pressure, high pressure pump 336 and booster pump 331 share seawater coarse filter 334, scale inhibitor additive 332, and A one-way valve 333 is provided at the water inlet end of the agent additive 332 . The connection mode and effect of precision filter 315 and accumulator 316 are also the same as the first device.

If the water pressure at the outlet of the high-pressure pump 336 is relatively high, the second check valve 340 is closed, the booster pump 331 does not work, and the system completely relies on the high-pressure pump 336 to provide high-pressure water; if the water pressure at the outlet 337 of the high-pressure pump 336 is insufficient, the second The second one-way valve 340 is opened, the booster pump 331 works, and the high-pressure water is replenished from the bypass, and the system completely relies on the high-pressure pump 336 and the booster pump 331 to provide high-pressure water.

Ensure that the water pressure in the reverse osmosis membrane module 317 is stable.

Similarly, the booster pump 331 in this system can also be driven by the motor 330 to work alone. When the high-pressure pump 336 is not working, it can provide the high-pressure water required by the system alone to ensure that the system works when needed.

Referring to Figure 4, the fourth device includes:

[A4], the reservoir 402, the seawater inlet 400 of the reservoir 402 is provided with a one-way sluice 401;

[B4], water turbine 406, its water inlet 405 is connected with the water outlet 403 of the reservoir 402, and the water outlet 407 is connected with the sea;

[C4], gearbox 413, its power input shaft 410 is connected with the power output shaft 408 of the water turbine 406 through a coupling 409; the power input shaft 410 of the gearbox 413 is provided with two groups of driving gears 412,414, Correspondingly, two sets of driven gears 452, 453 are also provided, wherein one set of driven gears 453 can be meshed with or separated from one set of driving gears 414, and the other set of driven gears 452 can be meshed or separated from another set of driving gears 412. Separation, the two groups of driven gears 453,452 are respectively provided with a power output shaft 415,446; There are many ways for the driven gears 452,453 to engage or separate from the driving gears 412,414, such as in the driving gears 412, 414, Clutch is set between 414 and driven gear 452,453, or driven gear 453,452 keeps still, driving gear 412,414 moves axially, or driving gear 412,414 keeps still, driven gear 453,452 shaft Clutch can be realized in both directions of movement.

[D4], the first high-pressure pump 451, its power input shaft 417 is connected to one of the power output shafts 415 of the gearbox 413 through a coupling 416, and the water inlet 450 of the first high-pressure pump 451 passes through the first unit The valve 455 communicates with the seawater in the sea or the seawater in the reservoir 402;

[E4], the second high-pressure pump 443, the power of the second high-pressure pump 443 is smaller than the power of the first high-pressure pump 451, the power input shaft 444 of the second high-pressure pump 443 is connected to the transmission through a coupling 445 Another power output shaft 446 of the box 413 is connected, and the water inlet 448 of the second high-pressure pump 443 communicates with the seawater in the sea or the seawater in the reservoir 402 through the second one-way valve 442;

[F4], two sets of reverse osmosis membrane components 420, 436 are respectively provided with fresh water outlets 423, 424 and concentrated seawater outlets 422, 437, wherein the water inlet 421 of one set of reverse osmosis membrane components 420 communicates with the first high-pressure pump 451 water outlet 454 is connected with the pipeline of the second high pressure pump 443 water outlet 449, and the water inlet 438 of another group of reverse osmosis membrane modules 436 is connected with the first high pressure pump 451 water outlet 454 and the second high pressure pump 451 through the solenoid valve 435. The pipeline of the water outlet 449 of the pump 443 is connected, and the fresh water outlets 423 and 424 of the two sets of reverse osmosis membrane modules 420 and 436 are connected with a fresh water collection tank 425;

[G4], the turbine 428, its water inlet 427 communicates with the concentrated seawater outlets 422, 437 of the two groups of reverse osmosis membrane modules 420, 436, and the water outlet 426 of the turbine 428 communicates with the sea;

[H4], generator 432, the power input shaft 431 of the generator 432 is connected with the power output shaft 429 of the turbine 428 through the coupling 430, and the generator can be connected to the storage battery 433 or the grid;

The water inlets of the first high-pressure pump 451 and the second high-pressure pump 443 are provided with a seawater coarse filter 440 and an antiscalant additive 439, and a check valve 441 is arranged at the water inlet of the coarse filter 440. The connection mode and effect of 418 and accumulator 419 are also the same as the previous several devices.

The gearbox of this structure has three working states: one, the driving gear 414 is not meshed with the driven gear 453, and the driving gear 412 is not meshed with the driven gear 452; two, the driving gear 414 is meshed with the driven gear 453, and the driving gear 412 is not meshed with driven gear 452; three, driving gear 414 is not meshed with driven gear 453, and driving gear 412 is meshed with driven gear 452.

Before the water turbine 406 is started, the gearbox 413 is in working state one, and the first high-pressure pump 451 and the second high-pressure pump 443 are not working.

The first working mode of the system is: when the difference between the water surface in the reservoir 402 and the water surface of the sea level is large, and the output power of the water turbine 406 is large, the gearbox 413 is in the second working state, and the second one-way The valve 442 is closed, the first one-way valve 455 is opened, the solenoid valve 435 is opened, seawater enters from the water inlet 450 of the high-pressure pump 451 and is pressurized, and high-pressure seawater flows out from the water outlet 454 of the high-pressure pump 451, and enters the reverse osmosis membrane module at the same time The water inlet 421 of 420 and the water inlet 438 of the reverse osmosis membrane module 436, the two groups of reverse osmosis membrane modules 420, 436 are all involved in the work, the concentrated seawater of the two groups of reverse osmosis membrane modules 420, 436 flows into the turbine from the concentrated seawater outlet 422, 437 Inside 428, the impingement turbine 428 turns and drives the generator 432 to generate electricity.

The second working mode of the system is: when the difference between the water surface in the reservoir 402 and the sea level is small, and the output power of the water turbine 406 is small, the gearbox 413 is in working state 3, and the first unit The one-way valve 455 is closed, the second one-way valve 442 is opened, the solenoid valve 435 is closed, seawater enters from the water inlet 448 of the second high-pressure pump 443 and is pressurized, and high-pressure seawater flows out from the water outlet 449 of the second high-pressure pump 443 and enters The water inlet 421 of the reverse osmosis membrane module 420, the reverse osmosis membrane module 420 works, the other group of reverse osmosis membrane modules 436 does not work, the concentrated seawater of the reverse osmosis membrane module 420 flows into the turbine 428 from the concentrated seawater outlet 422, and the impact turbine 428 rotates And drive the generator 432 to generate electricity.

The above four devices utilize the high-level seawater in the reservoir to impact the water turbine and rotate during the process of flowing to the sea after ebb tide, because when the tide rises, the high-level seawater in the sea can also impact the water turbine in the process of flowing into the reservoir Rotate, so the tidal energy of both low tide and high tide should be utilized, the following four devices are exactly this function.

With reference to Fig. 5, the fifth device comprises:

[A5], the water storage tank 500, the water storage tank 500 is provided with a water inlet pipeline 505 and a water outlet pipeline 506, and the water inlet pipeline 505 and the water outlet pipeline 506 are respectively provided with a first electromagnetic valve 501 and a second electromagnetic valve valve 543;

[B5], the first water turbine 503 is arranged on the water inlet pipeline 505 of the reservoir 500;

[C5], the second water turbine 504 is arranged on the outlet pipeline 506 of the reservoir 500;

[D5], transmission box 509, the transmission box 509 is provided with two sets of input end driving gears 508, 544 and a set of input end driven gears 540, and the input end driven gears 540 can be respectively connected with one set of input end driven gears. The gears 508, 544 are meshed or disengaged, and the input drive gears 508, 544 are each provided with a power input shaft 546, 548, and these two power input shafts 546, 548 are the two power input shafts of the transmission box 509. One of the power input shafts 548 of the transmission case 509 is connected to the power output shaft 547 of the first water turbine 503 through a coupling 541, and the other power input shaft 546 is connected to the power output shaft 545 of the second water turbine 504 through a coupling 507;

[E5], gearbox 514, the power input shaft 513 of the gearbox 514 is connected with the power output shaft 510 of the transmission box 509 through a coupling 512;

[F5], high-pressure pump 518, its power input shaft 516 is connected with the power output shaft 515 of the gearbox 514 through a coupling 517, and the water inlet 525 of the high-pressure pump 518 is connected to the seawater in the sea or the reservoir 500 The sea water in the communication;

[G5], the reverse osmosis membrane module 529 is provided with a fresh water outlet 527 and a concentrated seawater outlet 528, the fresh water outlet 527 is connected to a fresh water collection tank 531, the water inlet 526 of the reverse osmosis membrane module 529 is connected to the water outlet of the high-pressure pump 518 524 connectivity;

[H5], the turbine 532, its water inlet 530 communicates with the concentrated seawater outlet 528 of the reverse osmosis membrane module 529, and the water outlet 535 communicates with the sea;

[I5], generator 537, the power input shaft 534 of this generator 537 is connected with the power output shaft 533 of turbine 532 by coupling 536, generator is connected with storage battery 538, and redundant electric energy also can be directly sent into grid.

The working principle and mode of this device gearbox 514, high-pressure pump 518, reverse osmosis membrane module 529, turbine 532 and generator 537 are the same as the first device, and the water inlet end of high-pressure pump 518 is provided with seawater coarse filter 520, The antiscalant additive 519, the connection mode and the effect of the one-way valve 521, precision filter 523 and accumulator 522 are also the same as the first device.

This device is provided with two water turbines 503,504, and the first solenoid valve 501 and the second solenoid valve 543 are also respectively connected with a flow regulator 502,542, and the flow regulator 502,542 controls the first solenoid valve 501 and the second solenoid valve respectively. The opening degree of the valve 543 is controlled on the same principle as that of the first device.

When the system is not working, the first solenoid valve 501 and the second solenoid valve 543 are closed.

When the tide is high, the water level of the seawater in the sea is higher than the water level of the seawater in the reservoir 500, the first solenoid valve 501 is opened, the second solenoid valve 543 is closed, and the seawater in the sea flows into the reservoir 500 through the first water turbine 503. , impact the rotation of the first water turbine 503, at this time the input end driving gear 544 meshes with the input end driven gear 540, the input end driving gear 508 is separated from the input end driven gear 540, and the first water turbine 503 passes through the transmission box 509, the gearbox 514 Drive the high-pressure pump 518 to work, and the working method is the same as the first device.

After the tide ebbs, the water level of the seawater in the reservoir 500 is higher than the water level of the seawater in the sea, the first solenoid valve 501 is closed, the second solenoid valve 543 is opened, and the seawater in the reservoir 500 flows into the sea through the second water turbine 504 , impact the second water turbine 504 to rotate, at this time the input end driving gear 544 is separated from the input end driven gear 540, the input end driving gear 508 meshes with the input end driven gear 540, the second water turbine 504 passes through the transmission box 509, the gearbox 514 Drive the high-pressure pump 518 to work, and the working method is the same as when the tide is rising.

The separation and engagement of the input driving gear 544, the input driving gear 508 and the input driven gear 540 can be realized by a clutch, or by using the structure of the gearbox 413 of the fourth device.

Referring to Fig. 6, the sixth device comprises:

[A6], the water storage tank 600, the water storage tank 600 is provided with a water inlet pipeline 605 and a water outlet pipeline 606, and the first electromagnetic valve 601 and the second electromagnetic valve 601 are respectively arranged on the water inlet pipeline 605 and the water outlet pipeline 606. The valve 643, the first electromagnetic valve 601 and the second electromagnetic valve 643 are also respectively connected with flow regulators 602, 644;

[B6], the first water turbine 603 is arranged on the water inlet pipeline 605 of the reservoir 600;

[C6], the second water turbine 604 is arranged on the outlet pipeline 606 of the reservoir 600;

[D6] Transmission box 648, the transmission box 648 is provided with two sets of input end driving gears 607, 646 and a set of input end driven gears 647, the input end driven gears 647 can be connected with one of the input end driving gears respectively 607 and 646 are meshed or disengaged, and the input drive gears 607 and 646 are respectively provided with a power input shaft 650 and 649, and one of the power input shafts 649 of the transmission box 648 is connected with the power of the first water turbine 603 through a coupling 645. The output shaft 652 is connected, and the other power input shaft 650 is connected with the power output shaft 651 of the second water turbine 604 through a coupling 642;

[E6], gearbox 611, the power input shaft 610 of the gearbox 611 is connected with the power output shaft 608 of the transmission box 648 through a coupling 609;

[F6], high-pressure pump 619, its power input shaft 614 is connected to the power output shaft 612 of the gearbox 611 through a coupling 613, and the water inlet 620 of the high-pressure pump 619 passes through the antiscalant additive 623, seawater in turn Coarse filter 622 and one-way valve 624 communicate with the seawater in the sea or the seawater in the reservoir 600;

[G6], the reverse osmosis membrane module 618 is provided with a fresh water outlet 631 and a concentrated seawater outlet 632, and the fresh water outlet 631 is connected with a fresh water collection tank 634, and the water inlet 630 of the reverse osmosis membrane module 618 is connected to the first one-way valve 616 through the first one-way valve 616. The water outlet 621 of the high-pressure pump 619 is connected, and a precision filter 615 and an accumulator 617 are arranged on the connecting pipeline between the reverse osmosis membrane module 618 and the high-pressure pump 619;

[H6], the booster pump 625, its water inlet 627 communicates with the pipeline communicating with the first check valve 616 and the high-pressure pump 619 through the second check valve 628, and the water outlet 629 of the booster pump 625 communicates with the communication station The connecting pipeline of the first one-way valve 616 and the reverse osmosis membrane assembly 618 is communicated;

[I6], the turbine 636, its water inlet 633 communicates with the concentrated seawater outlet 632 of the reverse osmosis membrane module 618, and the water outlet 635 communicates with the sea;

[J6], generator 640, the power input shaft 639 of the generator 640 is connected with the power output shaft 637 of the turbine 636 through a coupling 638, and the electric energy output end of the generator 640 is connected with a storage battery 641 and a grid;

[K6], storage battery 641, the power supply of this storage battery 641 is provided by generator 640;

[L6], the electric motor 626, the working power of the electric motor 626 is provided by the storage battery 641, and the power output shaft 654 of the electric motor 626 is connected with the power input shaft 653 of the booster pump 625.

The working principle of the water turbine and transmission box of this device is the same as that of the fifth device, and the working principle of other parts is the same as that of the second device.

Referring to Figure 7, the seventh device includes:

[A7], the water storage tank 700, the water storage tank 700 is provided with a water inlet pipeline 705 and a water outlet pipeline 706, and the water inlet pipeline 705 and the water outlet pipeline 706 are respectively provided with a first electromagnetic valve 701 and a second electromagnetic valve The valve 732, the first solenoid valve 701 and the second solenoid valve 732 are respectively connected with flow regulators 702 and 733;

[B7], the first water turbine 703 is arranged on the water inlet pipeline 705 of the water storage tank 700;

[C7], the second water turbine 704 is arranged on the outlet pipeline 706 of the reservoir 700;

[D7], the transmission box 736, the transmission box 736 is provided with two sets of input end driving gears 708, 735 and a set of input end driven gears 749, the input end driven gears 749 can be respectively connected with one set of input end driven gears The gears 708, 735 are meshed or separated, and the input drive gears 708, 735 are respectively provided with a power input shaft 750, 752, and one of the power input shafts 752 of the transmission box 749 is connected to the first water turbine 703 through the coupling 734. The power output shaft 753 is connected, and the other power input shaft 750 is connected with the power output shaft 751 of the second water turbine 704 through a coupling 707;

[E7], gearbox 712, the power input shaft 711 of the gearbox 712 is connected with the power output shaft 709 of the transmission box 736 through a coupling 710;

[F7], high-pressure pump 737, its power input shaft 715 is connected with the power output shaft 713 of the gearbox 712 through a coupling 714, and the water inlet 740 of the high-pressure pump 737 passes through the first one-way valve 741, the resistance Scale agent adder 738, seawater coarse filter 748 and one-way valve 747 are communicated with the seawater in the sea or the seawater in the reservoir 700;

[G7], the reverse osmosis membrane module 718 is provided with a fresh water outlet 720 and a concentrated seawater outlet 721, and the fresh water outlet 720 is connected with a fresh water collection tank 723, and the water inlet 719 of the reverse osmosis membrane module 718 is connected to the water outlet of the high-pressure pump 739 737 is connected; the water inlet end of the reverse osmosis membrane assembly 718 is provided with a precision filter 716 and an energy storage device 717;

[H7], the booster pump 744, its water inlet 743 communicates with the seawater in the sea or the seawater in the reservoir 700 through the second one-way valve 742, and the water outlet 754 of the booster pump 744 communicates with the high-pressure pump 737 Communicate with the connecting pipeline of the reverse osmosis membrane assembly 718, the booster pump 744 and the high pressure pump 737 share an antiscalant additive 738, seawater coarse filter 748 and check valve 747;

[I7], the turbine 724, its water inlet 722 is communicated with the concentrated seawater outlet 721 of the reverse osmosis membrane module 718, and the water outlet 725 is communicated with the sea;

[J7], generator 729, the power input shaft 728 of the generator 729 is connected with the power output shaft 726 of the turbine 724 through a coupling 727, the power output end of the generator 729 is connected with a storage battery 730, and the excess power can also be sent into the grid;

[K7], storage battery 730, the power supply of the storage battery 730 is provided by the generator 729;

[L7], the electric motor 745, the working power of the electric motor 745 is provided by the storage battery 730, and the power output shaft 756 of the electric motor 745 is connected with the power input shaft 755 of the booster pump 744.

The working principle of the hydraulic turbine and transmission box of this device is the same as that of the fifth device, and the working principle of other parts is the same as that of the third device.

Referring to Fig. 8, the eighth device comprises:

[A8], a water storage tank 800, the water storage tank 800 is provided with a water inlet pipeline 805 and a water outlet pipeline 806, and the water inlet pipeline 805 and the water outlet pipeline 806 are respectively provided with a first electromagnetic valve 801 and a second electromagnetic valve The valve 858, the first solenoid valve 801 and the second solenoid valve 858 are respectively connected with flow regulators 802 and 857;

[B8], the first water turbine 803 is arranged on the water inlet pipeline 805 of the water storage tank 800;

[C8], the second water turbine 804 is arranged on the outlet pipeline 806 of the reservoir 800;

[D8], transmission box 854, the transmission box 854 is provided with two sets of input end driving gears 808, 855 and a set of input end driven gears 859, and the input end driven gears 859 can be respectively connected with one set of input end driven gears. The gears 808, 855 are meshed or separated, and the driving gears 808, 855 at the input end are respectively provided with a power input shaft 860, 863, and one of the power input shafts 863 of the transmission box 854 is connected to the first water turbine 803 through the coupling 856. The power output shaft 862 is connected, and the other power input shaft 860 is connected with the power output shaft 861 of the second water turbine 804 through a coupling 807;

[E8], gearbox 813, its power input shaft 811 is connected with the power output shaft 809 of the transmission box 854 through a coupling 810; the power input shaft 811 of the gearbox 813 is provided with two sets of driving gears 812, 814 Correspondingly, two sets of driven gears 819, 818 are provided, wherein one set of driven gears 818 can mesh with or separate from one set of driving gears 814, and the other set of driven gears 819 can mesh with another set of driving gears 812 Or separated, the two sets of driven gears 819, 818 are each provided with a power output shaft 853, 815;

[F8], the first high-pressure pump 820, its power input shaft 817 is connected to one of the power output shafts 815 of the gearbox 813 through a coupling 816, and the water inlet 843 of the first high-pressure pump 820 passes through the first The one-way valve 842, the antiscalant additive 847, the coarse seawater filter 848 and the one-way valve 862 are communicated with the seawater in the sea or the seawater in the reservoir 800;

[G8], the second high-pressure pump 850, the power of the second high-pressure pump 850 is smaller than the power of the first high-pressure pump 820, and the power input shaft 851 of the second high-pressure pump 850 is connected to the transmission through a coupling 852 The other power output shaft 853 of the box 813 is connected, and the water inlet 849 of the second high-pressure pump 850 also passes through the second check valve 846, the antiscalant additive 847, the seawater coarse filter 848 and the check valve 862 and The seawater in the sea or the seawater in the reservoir 800 is connected;

[H8], two sets of reverse osmosis membrane modules 822, 837 are provided with fresh water outlets 825, 826 and concentrated seawater outlets 824, 838 respectively, fresh water outlets 825, 826 are connected with fresh water collection tanks 827, and one set of reverse osmosis membrane modules 822 The water inlet 823 of the first high-pressure pump 820 is connected to the water outlet 844 of the second high-pressure pump 850 and the pipeline is connected to the water outlet 845 of the second high-pressure pump 850. The pipelines of the water outlet 844 of the first high-pressure pump 820 and the water outlet 845 of the second high-pressure pump 850 are connected; on the connecting main pipes of the reverse osmosis membrane modules 822, 837 and the first high-pressure pump 820 and the second high-pressure pump 850, precision filtration is provided. device 821 and accumulator 841;

[I8], the turbine 828, its water inlet 830 communicates with the concentrated seawater outlets 824, 838 of the two groups of reverse osmosis membrane modules 822, 837, and the water outlet 829 of the turbine 828 communicates with the sea;

[J8], generator 834, the power input shaft 833 of the generator 834 is connected with the power output shaft 831 of the turbine 828 through a coupling 832, the power output end of the generator 834 is connected with a storage battery 835, and the excess power can also be sent into the grid.

The working principle of the water turbine and transmission box of this device is the same as that of the fifth device, and the working principle of other parts is the same as that of the fourth device.

Based on the principle of the present invention, many devices with other structures can also be realized. The specific structures of the above eight kinds of implementation devices can not limit the scope of protection of the present invention, as long as they are equal modifications made according to the scope of protection of the present invention. Changes still belong to the scope covered by the present invention.

Claims (1)

1. A bypass pressurized seawater desalination and power generation device driven bidirectionally by tidal energy, characterized in that it comprises: [A6], a water storage tank, the water storage tank is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline and the water outlet pipeline are respectively provided with a first solenoid valve and a second solenoid valve; [B6], the first water turbine is arranged on the water inlet pipeline of the storage tank; [C6], the second water turbine is arranged on the water outlet pipeline of the reservoir; [D6], the transmission box, the transmission box is provided with two sets of input end driving gears and a set of input end driven gears, the input end driven gears can be respectively meshed with or separated from one set of input end driving gears, the said The driving gears at the input end are each provided with a power input shaft, one of the power input shafts of the transmission box is connected to the power output shaft of the first water turbine, and the other power input shaft is connected to the power output shaft of the second water turbine; [E6], gearbox, the power input shaft of the gearbox is connected to the power output shaft of the transmission box; [F6], a high-pressure pump, the power input shaft of which is connected to the power output shaft of the gearbox, and the water inlet of the high-pressure pump communicates with the seawater in the sea or the seawater in the reservoir; [G6], the reverse osmosis membrane module is provided with a fresh water outlet and a concentrated seawater outlet, and the water inlet of the reverse osmosis membrane module communicates with the water outlet of the high-pressure pump through the first one-way valve; [H6], the booster pump, its water inlet communicates with the pipeline connecting the first check valve and high-pressure pump through the second one-way valve, and the water outlet of the booster pump communicates with the first one-way valve and the pipeline The connecting pipeline of the reverse osmosis membrane module is connected; [I6], the turbine, its water inlet is connected with the concentrated seawater outlet of the reverse osmosis membrane module, and the water outlet is connected with the sea; [J6], generator, the power input shaft of the generator is connected with the power output shaft of the turbine; [K6], storage battery, the power supply of the storage battery is provided by the generator; [L6], the electric motor, the working power of the electric motor is provided by the storage battery, and the power output shaft of the electric motor is connected with the power input shaft of the booster pump.

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