Underwater emergency power generation system suitable for seawater

Abstract

The underwater emergency power generation system comprises a seawater desalination module, a hydrogen production module, a power generation module and a control module, the seawater desalination module comprises a filter, a reverse osmosis device and a purification device which are sequentially mounted according to the sequence of filtering, reverse osmosis and purification; the hydrogen production module comprises a reaction kettle, an activated aluminum-based alloy material and a drying device, the activated aluminum-based alloy material is placed in the reaction kettle in advance and can react with the desalinated seawater to generate hydrogen, and the drying device can dry moisture in the generated hydrogen; the power generation module comprises a hydrogen-oxygen fuel cell, an oxygen tank, a pressure reducing device and an inverter, hydrogen generated by reaction and oxygen stored in the oxygen tank pass through the pressure reducing device and then are introduced into the hydrogen-oxygen fuel cell for power generation, and the hydrogen and the oxygen are converted into alternating current under the action of the inverter to be used by an external load; and the control module comprises a control device, an electromagnetic valve and a liquid level sensor, and can quickly control the whole system to operate after receiving a signal.

Description

Technical Field

[0001] The invention relates to the technical field of emergency power generation equipment, and in particular to an underwater emergency power generation system suitable for seawater. Background Art

[0002] Various types of underwater equipment are being widely used. In order to ensure the reliable operation of such important underwater equipment and prevent sudden power outages from causing the equipment to fail to work normally, it is necessary to add emergency energy that is safe, stable and can be stored underwater for a long time.

[0003] In the existing field of emergency power generation technology, emergency power sources in traditional industrial production mainly include diesel generators and battery packs. Their disadvantages are: they are generally applicable to land, cannot be used underwater or cannot store energy for a long time underwater. At present, new hydrogen energy sources must use hydrogen tanks as hydrogen sources, which have the difficulty of high-density safe storage and transportation of hydrogen tanks and cannot be fully applied to marine environments. Summary of the invention

[0004] In view of the problems existing in the prior art, the present invention provides a rationally designed underwater emergency power generation system suitable for seawater.

[0005] In order to achieve the above technical purpose, the technical solution of the present invention is as follows: The invention discloses an underwater emergency power generation system suitable for seawater, which is characterized in that it comprises a seawater desalination module, a hydrogen production module, a power generation module and a control module; the operation steps of the emergency power generation system are as follows: after receiving a start signal, the control module quickly opens the solenoid valve inside the system, so that seawater automatically enters the seawater desalination module for desalination treatment under the action of external pressure, and the desalinated seawater enters the hydrogen production module and reacts with the activated metal therein to generate hydrogen, and the hydrogen is dried and then introduced into a fuel cell in the power generation module to react with oxygen to generate electrical energy.

[0006] The seawater desalination module comprises a filter, a reverse osmosis device, and a purification device, which are installed in sequence of filtering first, then reverse osmosis, and finally purification to desalinate seawater.

[0007] The hydrogen production module includes a reactor, an aluminum-based alloy material and a drying device. The aluminum-based alloy material is placed in the reactor and can react with desalinated seawater to generate hydrogen. The drying device is connected to the hydrogen outlet of the reactor and can dry out the moisture in the hydrogen generated by the reaction.

[0008] The power generation module includes a hydrogen-oxygen fuel cell, an oxygen tank, a pressure reducing device and an inverter. The hydrogen generated by the reactor and the oxygen stored in the oxygen tank are passed through the pressure reducing device and then introduced into the hydrogen-oxygen fuel cell to generate electricity. The generated direct current is converted into alternating current by the inverter for use by an external load.

[0009] The control module includes a control device, two solenoid valves and a liquid level sensor. The control device has a lithium battery. After receiving the start signal, it will quickly open the water inlet valve 1 and the water inlet valve 2 to connect the water inlet pipeline of the entire system. When the liquid level of the purified seawater in the reactor reaches the liquid level sensor, the control device will immediately close the water inlet valve 2 to prevent hydrogen from overflowing, and then close the water inlet valve 1 to cut off the seawater supply, and at the same time control the opening of the pressure reducing device switch, so that hydrogen and oxygen can flow into the fuel cell at the set flow rate.

[0010] As a further solution of the present invention, the internal device of the system is pre-evacuated to prevent the presence of gas impurities, while providing a pressure difference to facilitate the rapid passage of seawater through the desalination module.

[0011] As a further solution of the present invention, the reverse osmosis device has a reverse osmosis membrane assembly, which can initially desalinate seawater, and the purification device can change the acidity and alkalinity of seawater again.

[0012] Compared with the existing invention, the beneficial effects of the present invention are: 1) The present invention generates electricity through chemical reactions. Unlike batteries, it can be stored for a long time without consuming energy and has high energy efficiency; 2) Before being activated with water, aluminum-based alloy materials are chemically inert, have no risk of explosion, and have an extremely long shelf life. Once the system is activated with water, their safety characteristics are similar to those of household alkali, making them easy to transport safely; 3) The present invention uses alloy to prepare hydrogen for power generation. Compared with hydrogen tanks, the equipment is small in size, light in weight, and reliable in operation. In addition, the hydrogen production of the alloy of the same quality far exceeds that of hydrogen tanks, and the power generation time is longer; 4) The underwater emergency power generation system suitable for seawater of the present invention can output electric energy quickly after startup, has high energy density, can use hydrogen immediately after production, and can be stored for a long period of time. It is suitable for protecting power for important loads in emergency situations in the ocean, and solves the problem of difficulty in using electricity for underwater emergencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a system schematic diagram of the present invention.

[0014] Figure 2 It is a schematic diagram of the control principle of the present invention.

[0015] In the figure: 101-filter, 102-reverse osmosis device, 103-purification device, 201-reactor, 202-activated metal, 203-drying device, 301-hydrogen and oxygen fuel cell, 302-oxygen tank, 303-pressure reducing device, 304-inverter, 401-controller, 402-water inlet valve 1, 403-water inlet valve 2, 404-liquid level sensor. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the invention in conjunction with the accompanying drawings and specific implementation examples.

[0017] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The examples described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0018] like Figure 1-2 As shown, an underwater emergency power generation system suitable for seawater includes a filter 101, a reverse osmosis device 102, a purification device 103, a reactor 201, an aluminum-based alloy material 202, a drying device 203, a hydrogen-oxygen fuel cell 301, an oxygen tank 302, a pressure reducing device 303, an inverter 304, a controller 401, a water inlet valve 402, a water inlet valve 403, and a liquid level sensor 404.

[0019] The process of the emergency power generation system suitable for seawater described in the present invention is as follows: after the controller 401 receives the start signal, the water inlet valve 1 and the water inlet valve 2 are opened in sequence; the seawater is automatically filtered through the filter device 101 under pressure to filter out impurities in the seawater, and the filtered seawater then enters the reverse osmosis device 102 and the purification device 103 for desalination; finally, it enters the reactor 201 to react with the aluminum-based alloy material 202 therein to generate hydrogen; when the liquid level in the reactor 201 reaches the liquid level sensor 404, the controller 401 automatically closes the water inlet valve 403, then closes the water inlet valve 402, and simultaneously opens the switch of the pressure reducing device 303, so that the reactor 201 and the oxygen tank 302 are connected to the fuel cell 301, wherein the hydrogen passes through the drying device 203 to remove excess moisture; after the hydrogen in the reactor 201 and the oxygen in the oxygen tank 302 are passed into the fuel cell 301, the system generates electrical energy, which is converted into alternating current after passing through the inverter 304 and transmitted to the external load.

[0020] In a preferred embodiment, the present invention takes into account the pressure difference problem existing on the seabed and needs to ensure that the internal pressure bearing capacity of the system meets the requirements of the deep-water environment.

[0021] In a preferred embodiment, the internal devices of the system need to be evacuated in advance to prevent the presence of gas impurities and provide a pressure difference to facilitate the rapid passage of seawater through the desalination module.

[0022] In a preferred embodiment, the seawater pipeline starts from the filtration device 101, passes through the reverse osmosis device 102 and the purification device 103 in sequence for desalination, and finally enters the reactor 201 to react with the aluminum-based alloy material 202. The hydrogen pipeline starts from the reactor 201, first passes through the drying device 203 to remove excess water in the hydrogen, then controls the inlet flow rate at a set value under the action of the pressure reducing device 303, and finally enters the fuel cell 301 to generate electricity.

[0023] In a preferred embodiment, the reverse osmosis device contains a reverse osmosis membrane assembly, which can initially desalinate seawater, and the purification device can change the acidity and alkalinity of the seawater again.

[0024] In a preferred embodiment, the drying device 203 may be silica gel and filter cotton, which can effectively absorb moisture in the output gas and ensure the dryness of the output gas.

[0025] The whole operation process of this system is automatically controlled by a predetermined program, including electromagnetic valve control and pressure reducing device control.

[0026] The underwater emergency power generation system suitable for seawater of the present invention adopts alloy to prepare hydrogen for power generation. Compared with hydrogen tanks, the equipment is small in size, light in weight, and reliable in operation. The hydrogen production of alloys of the same quality far exceeds that of hydrogen tanks, and the power generation time is longer. Before the system is activated, the aluminum-based alloy material is chemically inert, has no explosion risk, and has an extremely long shelf life. Once the system is activated with water, their safety characteristics are similar to those of household alkali, which is convenient and safe to transport. Unlike batteries, they can be stored for a long time without consuming energy, and have high energy efficiency. The underwater emergency power generation system suitable for seawater of the present invention can output electrical energy quickly after startup, has high energy density, and can be used immediately after hydrogen is produced, and can be stored for a long period of time. It is suitable for the power conservation of important loads in marine emergencies and solves the problem of underwater emergency power difficulties.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the protection scope of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. The present invention discloses an underwater emergency power generation system suitable for seawater, characterized in that: The emergency power generation system comprises a seawater desalination module (1), a hydrogen production module (2), a power generation module (3) and a control module (4); the operation steps of the emergency power generation system are as follows: after receiving a start signal, the control module (4) quickly opens the electromagnetic valve inside the system, so that seawater automatically enters the seawater desalination module (1) under the action of pressure for desalination treatment; after the desalinated seawater enters the hydrogen production module (2), it reacts with the aluminum-based alloy material therein to generate hydrogen; after drying, the hydrogen is passed into the fuel cell of the power generation module (3) to react with oxygen to generate electrical energy.

2. The underwater emergency power generation system suitable for seawater according to claim 1, characterized in that: The seawater desalination module (1) comprises a filter (101), a reverse osmosis device (102), and a purification device (103), which are installed in sequence according to the order of first filtering, then reverse osmosis, and finally purification to desalinate seawater.

3. The underwater emergency power generation system suitable for seawater according to claim 1, characterized in that: The hydrogen production module (2) comprises a reactor (201), an aluminum-based alloy material (202) and a drying device (203); the aluminum-based alloy material (202) is pre-placed in the reactor (201) and can react with desalinated seawater to generate hydrogen; the drying device (203) is connected to the hydrogen outlet of the reactor (201) and can dry out moisture in the hydrogen generated by the reaction.

4. The underwater emergency power generation system suitable for seawater according to claim 1, characterized in that: The power generation module (3) comprises a hydrogen-oxygen fuel cell (301), an oxygen tank (302), a pressure reducing device (303) and an inverter (304); the hydrogen generated by the reactor (201) and the oxygen stored in the oxygen tank (302) are passed through the pressure reducing device (303) and then introduced into the hydrogen-oxygen fuel cell (301) to generate electricity; the generated direct current is converted into alternating current under the action of the inverter (304) for use by an external load.

5. The underwater emergency power generation system suitable for seawater according to claim 1, characterized in that: The control module (4) comprises a control device (401), two solenoid valves (402) (403) and a liquid level sensor (404). The control device (401) contains a lithium battery and can quickly control the operation of the entire system after receiving a start signal.

6. The underwater emergency power generation system suitable for seawater according to claim 5, characterized in that: After receiving the start signal, the control device (401) will quickly open the water inlet valve 1 (402) and the water inlet valve 2 (403) to connect the water inlet pipeline of the entire system. When the liquid level of the purified seawater in the reactor reaches the liquid level sensor (404), the control device (401) will immediately close the water inlet valve 2 (403) to prevent hydrogen from overflowing, and then close the water inlet valve 1 (402) to cut off the seawater supply, and at the same time open the switch of the pressure reducing device (303) to allow hydrogen and oxygen to flow into the fuel cell at a set flow rate.

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