Small integrated air supply device for cross-medium vehicle

Abstract

The invention relates to a small-sized integrated air supply device for a cross-medium vehicle, which comprises a filter shell, the space of the filter shell is divided into two parts by a middle partition plate, the filter shell comprises a seawater filter device, a water electrolysis device and a gas-liquid separation device, the seawater filter device is used for providing pure seawater in the water electrolysis process, and the water electrolysis device is used for providing pure water in the water electrolysis process; the water electrolysis device is used for generating hydrogen and oxygen required by the cross-medium aircraft, and the gas-liquid separation device is used for extracting pure oxygen in the water electrolysis process and recycling water vapor; the seawater filtering device is arranged on the left side of the filtering shell, the gas-liquid separation device is arranged on the right side of the filtering shell, and the water electrolysis device is arranged on the top of the filtering shell. The problem of contradiction between large occupied space and small mounting space of the cross-medium aircraft caused by independent design of each device in the prior art is solved, and meanwhile, a compact structural design is adopted so as to be smoothly mounted on the cross-medium aircraft.

Description

Technical Field

[0001] The present invention relates to the field of new energy technology, and more specifically, to a small integrated air supply device for a cross-medium vehicle. Background Art

[0002] In order to achieve the long-term endurance, rapid water exit and underwater drag reduction functions of the cross-medium spacecraft, a sustainable energy supply system, a ballast propulsion system and an underwater drag reduction system are designed accordingly. Among the three systems, the sustainable energy supply system is the core system. It is responsible for supplying energy for the entire spacecraft and is also the energy guarantee for the other two systems to achieve the established functions. The air supply device is the core device of the sustainable energy supply system, which is responsible for seawater filtration, electrolysis and hydrogen and oxygen purification. Without this device, the established functions of the entire spacecraft cannot be achieved. Therefore, it is extremely important to design a small integrated air supply device for the cross-medium spacecraft. The cross-medium spacecraft is small in size and compact in space layout, and the installation space for the air supply device is extremely limited. The cross-medium spacecraft proposes to solve the endurance problem by adopting a sustainable energy supply system, solve the water exit problem by using a ballast propulsion system, and solve the water resistance problem by using an underwater drag reduction system. The realization of these system functions requires continuous replenishment of hydrogen and oxygen. Therefore, the air supply device is designed to solve the energy and power supply problem of the cross-medium spacecraft. Traditionally, the functions of seawater filtration, water electrolysis, and hydrogen and oxygen separation and purification are independently implemented by a seawater filter, a water electrolysis device, and a gas-liquid separator. The independence of the devices results in a large overall space occupation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a small integrated air supply device for a cross-media vehicle, which solves the problem of large structural space occupation caused by the independence of traditional equipment and achieves structural miniaturization and functional integration.

[0004] The technical solution adopted by the present invention to solve the technical problem is: construct a small integrated air supply device for a cross-media vehicle, including a filter housing, the filter housing is divided into two spaces by a middle partition, and includes a seawater filter device, a water electrolysis device and a gas-liquid separation device, the seawater filter device is used to provide pure seawater in the water electrolysis process, the water electrolysis device is used to generate hydrogen and oxygen required by the cross-media vehicle, and the gas-liquid separation device is used to extract pure oxygen and recover water vapor in the water electrolysis process;

[0005] The seawater filtering device is arranged on the left side of the filtering housing, the gas-liquid separation device is arranged on the right side of the filtering housing, and the water electrolysis device is arranged on the top of the filtering housing;

[0006] A sealing ring gasket is arranged at the bottom of the filter housing, an anode side pressure plate is arranged at the bottom end of the seawater filter device, and a cathode side pressure plate is arranged at the top end of the seawater filter device.

[0007] According to the above scheme, the anode side pressure plate at the bottom and the cathode side pressure plate at the top are both provided with a water inlet, an oxygen outlet, and a hydrogen outlet.

[0008] According to the above scheme, the seawater filtration device includes an impurity filter membrane, an element filter membrane and a gas barrier filter membrane which are arranged in sequence from top to bottom with gaps left. The outer sides of the impurity filter membrane, the element filter membrane and the gas barrier filter membrane are all provided with a seawater filter membrane receiving ring for supporting and fixing the filter membrane.

[0009] According to the above scheme, the water electrolysis device includes an anode electrode plate, an anode sealing layer, an anode diffusion layer, an anode diffusion layer, a proton exchange membrane, a cathode catalyst layer, a cathode diffusion layer, a cathode sealing layer and a cathode electrode plate arranged in sequence from bottom to top;

[0010] An intermediate positioning ring is arranged outside the proton exchange membrane, a hollow space between the anode electrode plate and the anode catalyst layer forms an anode reaction chamber, and a hollow space between the cathode electrode plate and the cathode catalyst layer forms a cathode reaction chamber;

[0011] The side surface of the anode electrode plate is provided with an anode lug for conducting water electrolysis by powering on, and the side surface of the cathode electrode plate is provided with a cathode lug for conducting water electrolysis by powering on.

[0012] According to the above scheme, the gas-liquid separation module includes a water-blocking filter membrane and an oxygen-collecting filter membrane receiving ring. The water-blocking filter membrane includes three membranes spaced from top to bottom, and oxygen-collecting filter membrane receiving rings are arranged at both ends of the three water-blocking filter membranes.

[0013] The small integrated air supply device for a cross-medium vehicle according to the present invention has the following beneficial effects:

[0014] 1. The present invention organically combines the seawater filtration function, water electrolysis function and gas-liquid separation function, solves the problem of large structural space occupation caused by the independence of traditional equipment, realizes structural miniaturization and functional integration, can be combined with flexible solar panels, can continuously electrolyze seawater to produce hydrogen and oxygen, and is suitable for cross-border mass vehicles that use hydrogen and oxygen as power energy and have long-term endurance requirements;

[0015] 2. The present invention can be combined with a bubble generator to provide a bubble drag reduction function for underwater cruising of a cross-medium vehicle, and can be combined with a water jet propulsion device to transport the generated hydrogen and oxygen to a combustion chamber for mixing and ignition, thereby realizing water ejection by a cross-medium vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0017] Figure 1 is a schematic diagram of the corresponding system and energy supply of the present invention;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of a small integrated air supply device for a cross-medium vehicle of the present invention;

[0019] Figure 3 is an overall cross-sectional view of a small integrated air supply device for a cross-medium vehicle of the present invention;

[0020] Figure 4 yes Figure 2 A partial cross-sectional view of

[0021] Figure 5 yes Figure 4 A partial enlarged view of

[0022] Figure 6 It is a diagram of the installation position of the small integrated air supply device for the cross-medium vehicle of the present invention;

[0023] Figure 7 It is a working state diagram of the small integrated air supply device for a cross-medium vehicle of the present invention;

[0024] Figure 8 is a three-dimensional schematic diagram of the anode reaction chamber of the present invention;

[0025] Fig. 9 It is a three-dimensional schematic diagram of the cathode reaction chamber and array reflux path of the present invention;

[0026] In the figure, 1, cathode side pressure plate, 2, gas barrier filter membrane, 3, element filter membrane, 4, impurity filter membrane, 5, seawater filter membrane receiving ring, 6, anode side pressure plate, 7, connecting assembly, 8, sealing ring gasket, 9, oxygen collection filter membrane receiving ring, 10-12, water barrier filter membrane, 13, filter housing, 14, cathode electrode plate, 15, cathode sealing layer, 16, anode sealing layer, 17, anode electrode plate, 18, intermediate positioning ring, 19, cathode Diffusion layer, 20, cathode catalyst layer, 21, proton exchange membrane, 22, anode catalyst layer, 23, anode diffusion layer, 101, water inlet, 102, water outlet, 103, seawater filtration chamber, 201, hydrogen outlet, 202, anode lug, 203, cathode lug, 204, reflux passage, 205, anode reaction chamber, 206, cathode reaction chamber, 301, oxygen outlet, 302, oxygen collection and filtration chamber. DETAILED DESCRIPTION

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0028] like Figure 1-5 As shown, the small integrated air supply device for a cross-media vehicle of the present invention comprises a filter housing 13, the filter housing 13 divides the space into two parts by a middle partition, and comprises a seawater filter device, a water electrolysis device and a gas-liquid separation device. The seawater filter device is used to provide pure seawater during the water electrolysis process, the water electrolysis device is used to generate hydrogen and oxygen required by the cross-media vehicle, and the gas-liquid separation device is used to extract pure oxygen and recover water vapor during the water electrolysis process. The seawater filter device is arranged on the left side of the filter housing 13, the gas-liquid separation device is arranged on the right side of the filter housing 13, and the water electrolysis device is arranged on the top of the filter housing 13. A sealing ring gasket 8 is arranged at the bottom of the filter housing 13, an anode side pressure plate 6 is arranged at the bottom end of the seawater filter device, and a cathode side pressure plate 1 is arranged at the top of the seawater filter device. The anode side pressure plate 6 at the bottom and the cathode side pressure plate 1 at the top are both provided with a water inlet 101, an oxygen outlet 301, and a hydrogen outlet 201.

[0029] The function of the seawater filtration device is to filter seawater, the purpose is to filter out impurities in the seawater, prevent impurities from corroding the electrode plates, and affect the electrolysis performance, thereby extending the service life of the gas supply device. The function realization process is: after the seawater enters the seawater filtration chamber 103 from the water inlet 101, it passes through the impurity filter membrane 4, the element filter membrane 3 and the gas barrier filter membrane 2 (blocking the passage of gas) in turn. The impurity filter membrane 4 and the element filter membrane 3 are used to filter macroscopic impurity particles and microscopic impurity elements in the seawater, and the gas barrier filter membrane 2 is used to prevent the oxygen generated by water electrolysis from escaping from the water inlet 101. The water electrolysis device realizes the water electrolysis function, the purpose is to produce hydrogen and oxygen for use in sustainable energy supply systems, ballast propulsion systems and underwater drag reduction systems. The function realization process is as follows: the treated seawater enters the anode reaction chamber 205, the oxygen generated by electrolysis is filtered and purified by the three-layer gas-liquid filter membrane, and then discharged from the oxygen outlet 301, the hydrogen ions generated by electrolysis pass through the proton exchange membrane 21 to reach the cathode reaction chamber 206, and generate hydrogen after obtaining electrons, and are discharged from the hydrogen outlet 201. Since water cannot pass through the proton exchange membrane 21 from the anode reaction chamber 205 to the cathode reaction chamber 206, the hydrogen does not need to be separated and purified by gas-liquid separation. The gas-liquid separation device realizes gas-liquid separation, and its purpose is to filter out the moisture contained in the oxygen to ensure the purity of the obtained oxygen. The function realization process is as follows: the oxygen generated by electrolysis is filtered layer by layer by the three-layer water-blocking filter membrane 10, and the mixed moisture is removed and then discharged from the oxygen outlet 301. The water-blocking filter membrane 10 in the gas-liquid separation module has the opposite function to the gas-blocking filter membrane 2 in the seawater filtration module, that is, gas can pass through, but liquid cannot. The three-layer water-blocking filter membrane 10 is used to ensure the purity of the oxygen finally obtained.

[0030] The seawater filtration device includes an impurity filter membrane 4, an element filter membrane 3 and a gas barrier filter membrane 2 which are arranged in sequence from top to bottom and have a gap. The outer sides of the impurity filter membrane 4, the element filter membrane 3 and the gas barrier filter membrane 2 are all provided with a seawater filter membrane receiving ring 5 for supporting and fixing the filter membrane. The water electrolysis device includes an anode electrode plate 17, an anode sealing layer 16, an anode catalyst layer 22, an anode diffusion layer 23, a proton exchange membrane 21, a cathode catalyst layer 20, a cathode diffusion layer 19, a cathode sealing layer 15 and a cathode electrode plate 14 which are arranged in sequence from bottom to top; an intermediate positioning ring 18 is arranged on the outer side of the proton exchange membrane 21, and the anode electrode plate 17 and the anode catalyst layer are hollow to form an anode reaction chamber 205, and the cathode electrode plate 14 and the cathode catalyst layer 20 are hollow to form a cathode reaction chamber 206. The side of the anode electrode plate 17 is provided with an anode lug 202 for energizing water electrolysis, and the side of the cathode electrode plate 14 is provided with a cathode lug 203 for energizing water electrolysis. The gas-liquid separation module comprises a water-blocking filter membrane 10 and an oxygen-collecting filter membrane receiving ring 9. The water-blocking filter membrane 10 comprises three membranes spaced from top to bottom. Both ends of the three water-blocking filter membranes 10 are provided with oxygen-collecting filter membrane receiving rings 9.

[0031] In a preferred embodiment of the present invention, the seawater filter device is used to provide pure seawater during the water electrolysis process. The seawater filter device includes three seawater filter membrane receiving rings 5, which are respectively clamped on the outside of the impurity filter membrane 4, the element filter membrane 3 and the gas barrier filter membrane 2. The impurity filter membrane 4, the element filter membrane 3 and the gas barrier filter membrane 2 are arranged at intervals from top to bottom to ensure that the seawater reaches the required purity after layer-by-layer filtration. The seawater filter mesh receiving ring mainly plays the role of supporting and fixing the filter membrane to prevent the filter membrane from shifting during operation, thereby ensuring the stability and consistency of the filtering effect. After the seawater enters the seawater filter chamber 102 from the water inlet 101, it is first filtered through the impurity filter membrane 4, which can effectively remove macroscopic impurity particles in the seawater, such as sand particles, suspended matter, etc., thereby purifying the seawater and protecting the normal operation of the subsequent filter membrane. Next, the seawater passes through the element filter membrane 3, which is designed to filter out microscopic impurity elements that are harmful to the water electrolysis process, such as heavy metal ions, organic pollutants, etc. Through this step, the purity of seawater is further improved, providing purer raw materials for subsequent electrolysis reactions. Finally, the seawater is filtered through the gas barrier filter membrane 2. The main function of the gas barrier filter membrane 2 is to prevent the oxygen generated during the electrolysis process from escaping from the water inlet 101, ensuring the stability of the gas environment in the electrolytic cell. After completion, the seawater entering the anode reaction chamber 205 is almost pure and free of impurities, which effectively reduces the degree of corrosion of the anode electrode plate 17 during the electrolysis process and extends the service life of the electrolytic cell. Through the seawater filtration device, not only can the seawater be efficiently filtered and purified, but also the electrode plates inside the electrolytic cell can be protected, thereby improving the efficiency and stability of the water electrolysis process.

[0032] In a preferred embodiment of the present invention, a water electrolysis device is used to generate hydrogen and oxygen required by a cross-media vehicle. The water electrolysis module includes, from bottom to top, an anode electrode plate 17, an anode sealing layer 16, an anode catalyst layer 22, an anode diffusion layer 23, a proton exchange membrane 21, a cathode catalyst layer 20, a cathode diffusion layer 19, a cathode sealing layer 15, and a cathode electrode plate 14. The anode electrode plate 17 is located at the lowest end and is made of a material with good electrical conductivity and corrosion resistance, such as titanium or stainless steel; the anode electrode plate 17 is used to provide a reaction site and support the attachment of the anode diffusion layer 23. The anode sealing layer 16 is located above the anode electrode plate 17 and is made of a polymer material that is resistant to acid, alkali and high temperature, and is used to prevent leakage of the electrolyte and maintain the sealing between the anode electrode plate 17 and the proton exchange membrane 21. The anode catalyst layer 22 is located above the anode sealing layer 16 and is usually made of a porous material, such as carbon fiber cloth or carbon black. The anode diffusion layer 23 helps the diffusion of ions and gases in the electrolyte and improves the reaction efficiency during the electrolysis process. The anode catalyst layer 22 is located above the anode diffusion layer 23 and is composed of a catalytic precious metal material (such as platinum or palladium). The anode diffusion layer 23 can reduce the activation energy of the oxidation reaction and promote the oxidation of water molecules to produce oxygen. The proton exchange membrane 21 is located between the anode diffusion layer 23 and the cathode catalyst layer 20 and is a key component of the water electrolysis device. The proton exchange membrane 21 is made of a polymer material with proton conductivity, such as a fluorinated polymer or a sulfonic acid resin. The proton exchange membrane 21 is highly selective and only allows hydrogen ions to pass through while preventing the penetration of water molecules to ensure effective proton transfer during the electrolysis process. The cathode catalyst layer 20 is located above the proton exchange membrane 21 and is also composed of a catalytic precious metal material. The cathode catalyst layer 20 is used to promote the reduction reaction and reduce hydrogen ions to hydrogen. The cathode diffusion layer 19 is located above the cathode catalyst layer 20 and is similar to the anode diffusion layer 23 and is usually composed of a porous material. The cathode diffusion layer 19 helps the diffusion of hydrogen and improves the reaction efficiency of the electrolyzer module. The cathode sealing layer 15 is located between the cathode electrode plate 14 and the cathode diffusion layer 19, and is made of a polymer material that is resistant to acid, alkali and high temperature. The cathode sealing layer 15 is used to prevent electrolyte leakage and maintain the sealing between the cathode electrode plate 14 and the proton exchange membrane 21. The cathode electrode plate 14 is located on the top of the electrolyzer module and is made of a material with good electrical conductivity and corrosion resistance, such as titanium or stainless steel. The cathode electrode plate 14 provides a reaction site and supports the attachment of the cathode catalyst layer 20. Through the combination of the above components, the water electrolysis device can realize the electrolysis process of water and produce hydrogen and oxygen required for cross-media vehicles.

[0033] In a preferred embodiment of the present invention, the gas-liquid separation device is used to extract pure oxygen and recover water vapor during the water electrolysis process. It includes three layers of water-blocking filter membranes 10 and three oxygen-collecting filter membrane receiving rings 9. The three layers of water-blocking filter membranes 10 are arranged at intervals from the anode reaction chamber 205 to the oxygen outlet 301 to ensure that the oxygen reaches the required purity after layer-by-layer filtration, and the water vapor left after filtration flows back to the anode reaction chamber 205 after condensation to participate in the water electrolysis process again. The oxygen-collecting filter membrane receiving ring 9 mainly plays the role of supporting and fixing the filter membrane to ensure the stability and reliability of the water-blocking filter membrane 10 during operation. Unlike the seawater filter membrane receiving ring 5, the oxygen-collecting filter membrane receiving ring 9 needs to use materials with different properties to adapt to different working environment requirements. The purified oxygen is pressurized by an air pump and stored in a high-pressure gas tank for subsequent use. Due to the water blocking effect of the proton exchange membrane 21, a mixed gas of water vapor and hydrogen will not be generated on the cathode side, so there is no need for a gas-liquid separation module, and it can be directly collected and stored, and stored in a corresponding high-pressure gas tank after being pressurized by an air pump. Through the gas-liquid separation device, not only can pure oxygen be effectively extracted, but water vapor can also be recycled, thereby improving the efficiency of the water electrolysis process.

[0034] like Figure 6-7 As shown, the air supply device is installed along the axis of the cross-medium vehicle. When the cross-medium vehicle is in operation, the cross-medium vehicle is in a horizontal cruising state, and the corresponding air supply device is in a horizontal position.

[0035] Water electrolysis will generate high heat. In order to prevent the damage of high heat to the equipment, the anode side pressure plate 6 is provided with a water inlet 101 and a water outlet 102. Through the continuous circulation of external seawater, the heat is taken away, so that the equipment is in an acceptable temperature range. At the same time, the circulation of seawater can also ensure that the impurities and ion concentrations in the seawater filtration chamber 102 will not accumulate more and more. The filter housing 13 divides the space into two parts through the middle partition, one side is used for seawater filtration, and the other side is used for gas-liquid separation. Poor air tightness will cause the fluids on both sides to communicate with each other, and then lose the filtering function, so a sealing ring gasket 8 is added to the bottom of the filter housing 13. Water electrolysis will generate high heat, so that a mixed gas of oxygen and water vapor is generated on one side of the gas-liquid separation, and an array of square holes is arranged for water vapor condensation reflux. Two holes are provided on the top of the filter housing 13, which are used for the filtered seawater to flow into the anode reaction chamber 205 and the water vapor and oxygen generated by water electrolysis to flow out of the anode reaction chamber 205. The filter housing 13 and the anode electrode plate 17 are provided with a series of return pipes 204 in the form of array square holes near the center position on the gas-liquid separation side. The return pipe has a certain slope along the radial direction. When the gas supply device is working, the water vapor generated by electrolysis on the anode side is condensed and returned to the anode reaction chamber 205 through the return pipe to participate in the subsequent water electrolysis reaction. The anode electrode plate 17 and the cathode electrode plate 14 are provided with annular lugs for powering on to perform water electrolysis. The anode side pressure plate 6 at the bottom and the cathode side pressure plate 1 at the top are both provided with a water inlet 101, an oxygen outlet 301, and a hydrogen outlet 201, and at the same time bear the local pressure brought by the connection component 7. The connection component 7 needs to be installed on the cross-medium vehicle support plate during assembly to reduce the additional mounting base and corresponding connectors, which sacrifices the convenience of disassembly to a certain extent. Considering that the gas supply device is intended to have a long service life, such a compromise is feasible.

[0036] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A small integrated air supply device for a cross-media aircraft, comprising a filter housing, wherein the filter housing is divided into two spaces by a middle partition, characterized in that: It comprises a seawater filtering device, a water electrolysis device and a gas-liquid separation device, wherein the seawater filtering device is used to provide pure seawater in the process of water electrolysis, the water electrolysis device is used to generate hydrogen and oxygen required by the cross-media vehicle, and the gas-liquid separation device is used to extract pure oxygen and recover water vapor in the process of water electrolysis; The seawater filtering device is arranged on the left side of the filtering housing, the gas-liquid separation device is arranged on the right side of the filtering housing, and the water electrolysis device is arranged on the top of the filtering housing; A sealing ring gasket is arranged at the bottom of the filter housing, an anode side pressure plate is arranged at the bottom end of the seawater filter device, and a cathode side pressure plate is arranged at the top end of the seawater filter device.

2. The small integrated air supply device for a cross-medium vehicle according to claim 1, characterized in that: The anode side pressure plate at the bottom and the cathode side pressure plate at the top are both provided with a water inlet, an oxygen outlet and a hydrogen outlet.

3. The small integrated air supply device for a cross-medium vehicle according to claim 1, characterized in that: The seawater filtering device comprises an impurity filter membrane, an element filter membrane and an air barrier filter membrane which are arranged in sequence from top to bottom with gaps left. The outer sides of the impurity filter membrane, the element filter membrane and the air barrier filter membrane are all provided with a seawater filter membrane receiving ring for supporting and fixing the filter membrane.

4. The small integrated air supply device for a cross-medium vehicle according to claim 1, characterized in that: The water electrolysis device comprises an anode electrode plate, an anode sealing layer, an anode diffusion layer, an anode diffusion layer, a proton exchange membrane, a cathode catalyst layer, a cathode diffusion layer, a cathode sealing layer and a cathode electrode plate, which are arranged in sequence from bottom to top; An intermediate positioning ring is arranged outside the proton exchange membrane, a hollow space between the anode electrode plate and the anode catalyst layer forms an anode reaction chamber, and a hollow space between the cathode electrode plate and the cathode catalyst layer forms a cathode reaction chamber; The side surface of the anode electrode plate is provided with an anode lug for conducting water electrolysis by powering on, and the side surface of the cathode electrode plate is provided with a cathode lug for conducting water electrolysis by powering on.

5. The small integrated air supply device for a cross-medium vehicle according to claim 3, characterized in that: The gas-liquid separation module comprises a water-blocking filter membrane and an oxygen-collecting filter membrane receiving ring. Three water-blocking filter membranes are sequentially arranged from top to bottom, and oxygen-collecting filter membrane receiving rings are arranged at both ends of the three water-blocking filter membranes.

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