Device for producing hydrogen through water electrolysis by utilizing photovoltaic and wind power renewable resources

Abstract

The invention discloses a device for water electrolysis hydrogen production by using photovoltaic and wind power renewable resources, and relates to the technical field of water electrolysis hydrogen production, the device comprises a water supply and power supply mechanism, a water electrolysis assembly is arranged on the right side of the water supply and power supply mechanism, and a seawater desalination mechanism is arranged on the rear side of the top of the water electrolysis assembly; two gas cooling mechanisms are arranged in the seawater desalination mechanism, a cleaning mechanism is arranged on the outer sides of the two gas cooling mechanisms, and a blocking mechanism is arranged on the left side of the cleaning mechanism. The problem that unused seawater and used seawater are mixed, so that the seawater replacement frequency needs to be increased or the seawater replacement time needs to be prolonged can be avoided, meanwhile, in the seawater replacement process, water scales on the surface of the gas cooling mechanism can be cleaned, and the water scales are discharged through synchronously output seawater; therefore, the seawater desalination efficiency is prevented from being influenced by scale attachment.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen production by water electrolysis, and in particular to a device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources. Background Art

[0002] As a clean energy, hydrogen is in great demand in the field of hydrogen-powered vehicles. With the continuous development of water electrolysis hydrogen production technology, the core idea of ​​solving the problem of resource scarcity is to use renewable resources such as wind and solar energy to generate electricity, and then use the obtained electricity to electrolyze seawater with huge reserves to produce hydrogen.

[0003] For example, the invention patent with authorization announcement number CN113969409B discloses a hydrogen and oxygen production system, which includes: a renewable energy recovery device; a capacitor device, the power input end of the capacitor device is connected to the power output end of the renewable energy recovery device; and an electrolyzer device, the power output end of the capacitor device is connected to the electrolyzer device.

[0004] The above-mentioned preparation system uses the method of directly introducing seawater into the evaporation chamber for seawater desalination and hydrogen and oxygen cooling. It is known that the concentration of calcium and magnesium ions in seawater is too high. After heating, scale such as calcium carbonate and magnesium hydroxide will be generated and attached to the surface of the heat exchanger. Since the thermal conductivity of scale is extremely low, it will seriously weaken the heat transfer efficiency of the heat exchanger, thereby causing the desalination efficiency of seawater to continue to decrease.

[0005] In addition, when replacing the seawater in the evaporation chamber, the unused seawater input from the seawater inlet will mix with the seawater already used in the evaporation chamber. Therefore, in order to ensure the seawater replacement effect, it is necessary to increase the replacement frequency or extend the replacement time, thereby increasing energy consumption and cost.

[0006] Therefore, it is necessary to invent a device for producing hydrogen by water electrolysis using renewable resources such as photovoltaic and wind power to solve the above problems. Summary of the Invention

[0007] The present invention aims to provide a device for producing hydrogen through water electrolysis using renewable resources such as photovoltaic and wind power. This device can avoid the mixing of unused seawater with used seawater, which would require increased seawater replacement frequency or extended seawater replacement time. Furthermore, during the seawater replacement process, scale on the surface of the gas cooling mechanism can be cleaned and removed using the simultaneously output seawater to prevent scale adhesion and its impact on seawater desalination efficiency. This device addresses the problem that the existing preparation systems proposed in the background art, which utilize direct seawater introduction into the evaporation chamber for seawater desalination and hydrogen and oxygen cooling, are known to have excessively high concentrations of calcium and magnesium ions in seawater. Upon heating, scale such as calcium carbonate and magnesium hydroxide is generated and adheres to the surface of the heat exchanger. Due to the extremely low thermal conductivity of scale, this scale can severely reduce the heat transfer efficiency of the heat exchanger, leading to a continuous decrease in seawater desalination efficiency. Furthermore, when the seawater in the evaporation chamber is replaced, unused seawater introduced through the seawater inlet can mix with the used seawater in the evaporation chamber. Therefore, to ensure effective seawater replacement, the replacement frequency must be increased or the replacement time must be extended, which in turn increases energy consumption and costs.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources, comprising a water supply and power supply mechanism, a water electrolysis assembly being provided on the right side of the water supply and power supply mechanism, a seawater desalination mechanism being provided on the top and rear side of the water electrolysis assembly, two sets of gas cooling mechanisms being provided inside the seawater desalination mechanism, a cleaning mechanism being provided on the outside of the two gas cooling mechanisms, and a blocking mechanism being provided on the left side of the cleaning mechanism; The cleaning mechanism includes a hydraulic cylinder fixedly arranged at the center of the desalination tank, the output shaft of the hydraulic cylinder passes through the top of the desalination tank and extends to the top of the inner cavity of the desalination tank, the outer side of the output shaft of the hydraulic cylinder is slidably fitted with a first cleaning scraper ring fixedly arranged on the top of the inner cavity of the desalination tank, the output shaft of the hydraulic cylinder is fixedly connected to a piston plate that slides in a vertical direction and fits inside the desalination tank, an upper chamber and a lower chamber for storing seawater are formed between the piston plate and the inner wall of the desalination tank, the lower chamber is filled with seawater, a plurality of second cleaning scrapers that slide in contact with the outer sides of adjacent heat exchange tubes are evenly fixed and penetrated on the piston plate, and a guide groove is provided on the left side of the piston plate; The sealing mechanism includes a C-shaped sealing plate that slides in a vertical direction and fits on the inner side of the desalination box and is slidably arranged on the inner side of the guide groove. The side of the C-shaped sealing plate is sequentially penetrated by a first steam output channel and a second steam output channel from top to bottom. The second steam output channel is connected to the steam output pipe. The top of the C-shaped sealing plate is fixedly connected to a guide rod that slides in a vertical direction and is penetrated by the top of the desalination box. A return spring that is fixedly connected between the desalination box and the guide rod and is in a stretched state is sleeved on the outer side of the guide rod.

[0009] Preferably, the water supply and power supply mechanism includes a fresh water tank, a power storage device is fixedly provided on the top of the fresh water tank, and the output end of the power storage device is connected to a photovoltaic power generation device and a wind power generation device.

[0010] Preferably, a water outlet pipe is fixedly provided through the bottom right side of the fresh water tank, and a water pump is provided on the water outlet pipe.

[0011] Preferably, the water electrolysis assembly includes an electrolysis box fixedly connected to the end of the water outlet pipe, and a high-temperature resistant ion exchange membrane is fixedly provided at an upper position in the middle of the inner cavity of the electrolysis box.

[0012] Preferably, an anode component is fixedly provided on the left side of the inner cavity of the electrolytic box, and a cathode component is fixedly provided on the right side of the inner cavity of the electrolytic box, and both the anode component and the cathode component are connected to the output end of the power storage device.

[0013] Preferably, the seawater desalination mechanism includes a desalination tank fixedly arranged on the top of the electrolysis tank, and a steam output pipe connected to the top of the fresh water tank is fixedly provided through the left side of the desalination tank.

[0014] Preferably, a seawater inlet and outlet pipe is fixedly provided through the right top and the right bottom of the desalination tank, and a high-temperature resistant valve is fixedly provided on the inner side of one end of the seawater inlet and outlet pipe located inside the desalination tank.

[0015] Preferably, any group of the gas cooling mechanisms includes a gas transmission pipe fixedly penetrating the top of the electrolytic box, the top of the gas transmission pipe is fixedly connected to a diverter cover, and the top of the diverter cover is evenly fixed with a heat exchange tube.

[0016] Preferably, the desalination box is fixedly sleeved on the outside of a plurality of heat exchange tubes, the top ends of the plurality of heat exchange tubes are fixedly connected with a junction cover, and a gas output pipe is fixedly provided through the center of the top of the junction cover.

[0017] Preferably, a method for using a device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources is also included, which specifically includes the following steps: S1. The photovoltaic power generation device and the wind power generation device input electrical energy into the power storage device for storage. A path is formed between the power storage device, the anode component, and the cathode component. The anode component and the cathode component electrolyze the fresh water inside the electrolysis box, thereby continuously generating hydrogen and oxygen on the left and right sides of the inner cavity of the electrolysis box. S2. The oxygen generated near the anode component and the hydrogen generated near the cathode component enter the adjacent diverter hoods through adjacent gas transmission pipes, and then disperse from the adjacent diverter hoods into the adjacent heat exchange tubes. After heat exchange and cooling with the seawater in the lower chamber through the heat exchange tubes, they are output and stored through adjacent gas output pipes. During the heat exchange and cooling process, the seawater in the lower chamber is heated to generate water vapor, which passes through the second steam output channel and enters the steam output pipe, where it is cooled and then falls from the output end of the steam output pipe into the fresh water tank for storage. S4. When the seawater in the lower chamber is replaced, the hydraulic cylinder drives its output shaft to continuously move downward. When the hydraulic cylinder moves downward, it drives the piston plate to move downward synchronously. When the piston plate moves downward, it no longer presses the top of the C-shaped sealing plate. At this time, the stretched return spring drives the guide rod to move downward and reset. During the downward movement of the guide rod, it drives the C-shaped sealing plate to move downward and reset synchronously, thereby making the second steam output channel no longer collinear with the input end of the steam output pipe. At the same time, the C-shaped sealing plate blocks the input end of the steam output pipe. S5. During the downward movement of the piston plate, the seawater in the lower chamber pushes open the lower high-temperature resistant valve and is discharged through the lower seawater inlet and outlet pipe. At the same time, the external seawater, under the negative pressure in the upper chamber, pushes open the upper high-temperature resistant valve and enters the upper chamber inside the desalination tank through the upper seawater inlet and outlet pipe to continue heat exchange. S6. During the downward movement of the piston plate, the second cleaning scrapers are driven to clean the scale generated on the outer surfaces of the heat exchange tubes due to the heat exchange process in the vertical direction. The cleaned scale is synchronously discharged along with the seawater in the lower chamber. S7. As the piston plate continues to move downward, the bottom of the piston plate fits against the lower end of the C-shaped sealing plate and drives it to move downward synchronously. At this time, the return spring is gradually compressed. At the same time, the first steam output channel gradually connects with the steam output pipe and becomes collinear during the downward movement of the C-shaped sealing plate. At this time, the steam generated in the upper chamber enters the steam output pipe through the first steam output channel and is cooled inside the steam output pipe. Then, it falls from the output end of the steam output pipe into the fresh water tank and is stored.

[0018] Technical effects and advantages of the present invention: The present invention is provided with a seawater desalination mechanism, a cleaning mechanism and a blocking mechanism, so that the cleaning mechanism can be used to separate the inner cavity of the seawater desalination mechanism into an upper chamber and a lower chamber. During the subsequent downward movement of the piston plate in the cleaning mechanism, the output of seawater in the lower chamber and the input of seawater in the upper chamber can be realized simultaneously, and at the same time, the scale attached to the surfaces of multiple heat exchange tubes can be cleaned and discharged. In addition, during the water inlet and outlet process, the blocking mechanism can actively block the input end of the steam output pipe, thereby preventing seawater from entering the fresh water tank through the steam output pipe. At the same time, after the water inlet and outlet are completed, the blocking mechanism can actively release the blockage of the steam output pipe, thereby preventing water vapor from entering the steam output pipe. Compared with the prior art, the present invention can avoid the problem of unused seawater and used seawater mixing, which requires an increase in the frequency of seawater replacement or an extension of the seawater replacement time. At the same time, during the seawater replacement process, the scale on the surface of the gas cooling mechanism can be cleaned and the scale can be discharged using the synchronously output seawater, so as to avoid scale attachment affecting the seawater desalination efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water supply and power supply mechanism and the water electrolysis component structure of the present invention; Figure 3 This is a schematic structural diagram of the seawater desalination mechanism of the present invention; Figure 4 Schematic diagram of the gas cooling mechanism structure of the present invention; Figure 5 It is a schematic structural diagram of the cleaning mechanism of the present invention; Figure 6 It is a structural schematic diagram of the blocking mechanism of the present invention.

[0020] In the figure: 1. Water supply and power supply mechanism; 11. Fresh water tank; 12. Power storage device; 13. Water outlet pipe; 14. Water pump; 2. Water electrolysis assembly; 21. Electrolysis box; 22. High-temperature resistant ion exchange membrane; 23. Anode component; 24. Cathode component; 3. Seawater desalination mechanism; 31. Desalination box; 32. Steam output pipe; 33. Seawater inlet and outlet pipes; 34. High-temperature resistant valve; 4. Gas cooling mechanism; 41. Gas transmission pipe; 42. Diverter cover; 43. Heat exchange pipe; 44. Merger cover; 45. Gas output pipe; 5. Cleaning mechanism; 51. Hydraulic cylinder; 52. First cleaning scraper; 53. Piston plate; 54. Second cleaning scraper; 55. Guide groove; 6. Sealing mechanism; 61. C-shaped sealing plate; 62. First steam output channel; 63. Second steam output channel; 64. Guide rod; 65. Return spring. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0022] The present invention provides Figures 1-6 The device shown utilizes photovoltaic and wind power renewable resources to produce hydrogen by water electrolysis, including a water supply and power supply mechanism 1, a water electrolysis component 2 is provided on the right side of the water supply and power supply mechanism 1, a seawater desalination mechanism 3 is provided on the top rear side of the water electrolysis component 2, two groups of gas cooling mechanisms 4 are provided inside the seawater desalination mechanism 3, a cleaning mechanism 5 is provided on the outside of the two gas cooling mechanisms 4, and a blocking mechanism 6 is provided on the left side of the cleaning mechanism 5.

[0023] like Figure 2 As shown, the water supply and power supply mechanism 1 includes a fresh water tank 11, a power storage device 12 is fixedly installed on the top of the fresh water tank 11, the output end of the power storage device 12 is connected to a photovoltaic power generation device and a wind power generation device, and a water outlet pipe 13 is fixedly installed through the bottom right side of the fresh water tank 11, and a water pump 14 is provided on the water outlet pipe 13.

[0024] It should be noted that the power storage device 12, the photovoltaic power generation device and the wind power generation device are all technologies that have been disclosed in the prior art, so this application will not elaborate on their specific structures and connection methods.

[0025] like Figure 2 As shown, the water electrolysis assembly 2 includes an electrolytic box 21 fixedly connected to the end of the water outlet pipe 13, a high-temperature resistant ion exchange membrane 22 is fixedly provided at the upper middle position of the inner cavity of the electrolytic box 21, an anode component 23 is fixedly provided on the left side of the inner cavity of the electrolytic box 21, and a cathode component 24 is fixedly provided on the right side of the inner cavity of the electrolytic box 21. The anode component 23 and the cathode component 24 are both connected to the output end of the power storage device 12.

[0026] By providing the water supply and power supply mechanism 1 and the water electrolysis assembly 2, the photovoltaic power generation device and the wind power generation device can input electrical energy into the power storage device 12 for storage. A passage is formed between the power storage device 12, the anode component 23 and the cathode component 24. The anode component 23 and the cathode component 24 electrolyze the fresh water inside the electrolysis box 21, thereby continuously generating hydrogen and oxygen on the left and right sides of the inner cavity of the electrolysis box 21.

[0027] like Figure 3As shown, the seawater desalination mechanism 3 includes a desalination tank 31 fixedly arranged on the top of the electrolysis tank 21, a steam output pipe 32 connected to the top of the fresh water tank 11 is fixedly provided on the left side of the desalination tank 31, and a seawater inlet and outlet pipe 33 is fixedly provided on the top and bottom of the right side of the desalination tank 31. A high-temperature resistant valve 34 is fixedly provided on the inner side of one end of the seawater inlet and outlet pipe 33 located inside the desalination tank 31.

[0028] like Figure 4 As shown, any group of gas cooling mechanisms 4 includes a gas transmission pipe 41 fixedly installed on the top of the electrolysis box 21, a diverter cover 42 is fixedly connected to the top of the gas transmission pipe 41, and heat exchange pipes 43 are evenly fixedly installed on the top of the diverter cover 42. The desalination box 31 is fixedly sleeved on the outside of multiple heat exchange pipes 43, and the tops of multiple heat exchange pipes 43 are commonly fixedly connected to a confluence cover 44, and a gas output pipe 45 is fixedly installed at the center of the top of the confluence cover 44.

[0029] By providing the gas cooling mechanism 4, the oxygen generated near the anode component 23 and the hydrogen generated near the cathode component 24 respectively enter the adjacent diverter hood 42 through the adjacent gas transmission pipes 41, and then are dispersed from the adjacent diverter hood 42 into the adjacent heat exchange tube 43. After heat exchange and cooling with the seawater in the lower chamber through the heat exchange tube 43, the gases are output and stored through the adjacent gas output pipes 45.

[0030] like Figure 5 As shown, the cleaning mechanism 5 includes a hydraulic cylinder 51 fixedly arranged at the center of the desalination tank 31, and the output shaft of the hydraulic cylinder 51 passes through the top of the desalination tank 31 and extends to the top of the inner cavity of the desalination tank 31. The outer side of the output shaft of the hydraulic cylinder 51 is slidably fitted with a first cleaning scraper 52 fixedly arranged on the top of the inner cavity of the desalination tank 31, and the output shaft of the hydraulic cylinder 51 is fixedly connected to a piston plate 53 that slides and fits inside the desalination tank 31 in the vertical direction. An upper chamber and a lower chamber for storing seawater are formed between the piston plate 53 and the inner wall of the desalination tank 31, and the lower chamber is filled with seawater. A plurality of second cleaning scrapers 54 that slide and fit respectively on the outer sides of adjacent heat exchange tubes 43 are evenly fixed and passed through the piston plate 53, and a guide groove 55 is provided on the left side of the piston plate 53.

[0031] By setting the above-mentioned seawater desalination mechanism 3 and cleaning mechanism 5, when the hydraulic cylinder 51 drives its output shaft to move continuously downward, the piston plate 53 moves downward synchronously. During the downward movement of the piston plate 53, positive pressure is generated in the lower chamber and negative pressure is generated in the upper chamber. The seawater in the lower chamber flushes open the lower high-temperature resistant valve 34 and is output through the lower seawater inlet and outlet pipe 33. At the same time, the external seawater flushes open the upper high-temperature resistant valve 34 under the action of the negative pressure in the upper chamber and enters the upper chamber inside the desalination tank 31 through the upper seawater inlet and outlet pipe 33 to continue heat exchange. In addition, during the downward movement of the piston plate 53, multiple second cleaning scrapers are driven. 54 cleans the scale generated on the outer surfaces of the multiple heat exchange tubes 43 due to the heat exchange process in the vertical direction, and the cleaned scale is synchronously output along with the seawater in the lower chamber. By using the piston plate 53 to separate the inner cavity of the desalination tank 31 into an upper chamber and a lower chamber, it can avoid the mixing of unused seawater and used seawater, which leads to the need to increase the frequency of seawater replacement or extend the time of seawater replacement. At the same time, during the seawater replacement process, the scale on the surface of the gas cooling mechanism 4 can be cleaned and the synchronously output seawater is used to discharge the scale to avoid scale adhesion and affect the seawater desalination efficiency.

[0032] like Figure 6 As shown, the sealing mechanism 6 includes a C-shaped sealing plate 61 that slides along the vertical direction and fits on the inner side of the desalination box 31 and is slidably arranged on the inner side of the guide groove 55. The side of the C-shaped sealing plate 61 is sequentially penetrated by a first steam output channel 62 and a second steam output channel 63 from top to bottom. The second steam output channel 63 is connected to the steam output pipe 32. The top of the C-shaped sealing plate 61 is fixedly connected to a guide rod 64 that slides along the vertical direction and is penetrated through the top of the desalination box 31. The outer side of the guide rod 64 is sleeved with a return spring 65 that is fixedly connected between the desalination box 31 and the guide rod 64 and is in a stretched state.

[0033] By setting the above structure, Figure 3As shown, at this time, the return spring 65 is in a stretched state, the second steam output channel 63 is connected to the input end of the steam output pipe 32 and is in line with each other, the top surface of the piston plate 53 is in contact with the top of the C-shaped sealing plate 61, and when the piston plate 53 moves downward, the stretched return spring 65 drives the guide rod 64 to move downward synchronously, and when the guide rod 64 moves downward, it drives the C-shaped sealing plate 61 to move downward synchronously, thereby making the second steam output channel 63 no longer in line with the input end of the steam output pipe 32, and at the same time blocking the input end of the steam output pipe 32. The negative pressure is then used to suck the external seawater. In addition, when the piston plate 53 continues to move downward, causing the bottom of the piston plate 53 to fit the lower end of the C-shaped sealing plate 61, as the piston plate 53 continues to move downward, the return spring 65 is gradually compressed. At the same time, the first steam output channel 62 gradually connects with the steam output pipe 32 and becomes collinear during the downward movement of the C-shaped sealing plate 61. At this time, the steam generated in the upper chamber enters the steam output pipe 32 through the first steam output channel 62 and is cooled down inside the steam output pipe 32.

[0034] The present invention also provides a method for using a device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources, which specifically comprises the following steps: S1, the photovoltaic power generation device and the wind power generation device input the electric energy into the power storage device 12 for storage. A path is formed between the power storage device 12, the anode component 23 and the cathode component 24. The anode component 23 and the cathode component 24 electrolyze the fresh water inside the electrolysis box 21, thereby continuously generating hydrogen and oxygen on the left and right sides of the inner cavity of the electrolysis box 21; S2, oxygen generated near the anode component 23 and hydrogen generated near the cathode component 24 respectively enter the adjacent diverter cover 42 through the adjacent gas transmission pipe 41, and then disperse from the adjacent diverter cover 42 to the adjacent heat exchange tube 43. After heat exchange and cooling with the seawater in the lower chamber through the heat exchange tube 43, they are output and stored through the adjacent gas output pipe 45. During the heat exchange and cooling process, the seawater in the lower chamber is heated to generate water vapor, which passes through the second steam output channel 63 and enters the steam output pipe 32, where it is cooled and then falls from the output end of the steam output pipe 32 into the fresh water tank 11 to be stored. S4. When the seawater in the lower chamber is replaced, the hydraulic cylinder 51 drives its output shaft to continue to move downward. When the hydraulic cylinder 51 moves downward, it drives the piston plate 53 to move downward synchronously. When the piston plate 53 moves downward, it no longer presses the top of the C-shaped sealing plate 61. At this time, the stretched return spring 65 drives the guide rod 64 to move downward and reset. During the downward movement of the guide rod 64, it drives the C-shaped sealing plate 61 to move downward and reset synchronously, thereby making the second steam output channel 63 no longer collinear with the input end of the steam output pipe 32. At the same time, the C-shaped sealing plate 61 blocks the input end of the steam output pipe 32. S5: During the downward movement of the piston plate 53, the seawater in the lower chamber pushes open the lower high-temperature resistant valve 34 and is discharged through the lower seawater inlet and outlet pipe 33. At the same time, the external seawater, under the negative pressure in the upper chamber, pushes open the upper high-temperature resistant valve 34 and enters the upper chamber of the desalination tank 31 through the upper seawater inlet and outlet pipe 33 to continue heat exchange. S6: During the downward movement of the piston plate 53, the second cleaning scrapers 54 are driven to vertically clean the scale generated on the outer surfaces of the heat exchange tubes 43 during the heat exchange process. The cleaned scale is synchronously discharged along with the seawater in the lower chamber. S7. As the piston plate 53 continues to move downward, the bottom of the piston plate 53 fits against the lower end of the C-shaped sealing plate 61 and drives it to move downward synchronously. At this time, the return spring 65 is gradually compressed. At the same time, the first steam output channel 62 gradually connects with the steam output pipe 32 and becomes collinear during the downward movement of the C-shaped sealing plate 61. At this time, the steam generated in the upper chamber enters the steam output pipe 32 through the first steam output channel 62 and is cooled inside the steam output pipe 32. Then, it falls from the output end of the steam output pipe 32 into the fresh water tank 11 and is stored. Example 2

[0035] Different from the above embodiment, the fresh water tank 11 is made of 316L stainless steel, and the inner wall is coated with a nano-level anti-corrosion coating. The desalination tank 31 is also made of 316L stainless steel, and a temperature sensor (PT100) is set on the inner wall to monitor the seawater temperature.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources, comprising a water supply and power supply mechanism (1), wherein a water electrolysis component (2) is provided on the right side of the water supply and power supply mechanism (1), and characterized in that: A seawater desalination mechanism (3) is provided on the rear side of the top of the electrolytic water assembly (2); two groups of gas cooling mechanisms (4) are provided inside the seawater desalination mechanism (3); a cleaning mechanism (5) is provided on the outside of the two gas cooling mechanisms (4); and a blocking mechanism (6) is provided on the left side of the cleaning mechanism (5); The cleaning mechanism (5) includes a hydraulic cylinder (51) fixedly arranged at the center of the desalination tank (31), an output shaft of the hydraulic cylinder (51) passes through the top of the desalination tank (31) and extends to the top of the inner cavity of the desalination tank (31), a first cleaning scraper (52) fixedly arranged on the top of the inner cavity of the desalination tank (31) is slidably attached to the outer side of the output shaft of the hydraulic cylinder (51), and the output shaft of the hydraulic cylinder (51) is fixedly connected to a piston plate (53) slidably attached to the inside of the desalination tank (31) in a vertical direction, an upper chamber and a lower chamber for storing seawater are formed between the piston plate (53) and the inner wall of the desalination tank (31), and the lower chamber is filled with seawater, a plurality of second cleaning scrapers (54) are evenly fixedly arranged on the piston plate (53) and respectively slidably attached to the outer sides of adjacent heat exchange tubes (43), and a guide groove (55) is provided on the left side of the piston plate (53); The blocking mechanism (6) comprises a C-shaped sealing plate (61) which is slidably attached to the inner side of the desalination box (31) along the vertical direction and is slidably arranged on the inner side of the guide groove (55). A first steam output channel (62) and a second steam output channel (63) are sequentially penetrated from top to bottom on the side surface of the C-shaped sealing plate (61). The second steam output channel (63) is connected to the steam output pipe (32). A guide rod (64) which is slidably penetrated and arranged on the top of the desalination box (31) along the vertical direction is fixedly connected to the top of the C-shaped sealing plate (61). A return spring (65) which is fixedly connected between the desalination box (31) and the guide rod (64) and is in a stretched state is sleeved on the outer side of the guide rod (64).

2. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 1, characterized in that: The water supply and power supply mechanism (1) comprises a fresh water tank (11), a power storage device (12) is fixedly provided on the top of the fresh water tank (11), and the output end of the power storage device (12) is connected to a photovoltaic power generation device and a wind power generation device.

3. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 2, characterized in that: A water outlet pipe (13) is fixedly provided through the bottom of the right side of the fresh water tank (11), and a water pump (14) is provided on the water outlet pipe (13).

4. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 3, characterized in that: The water electrolysis assembly (2) comprises an electrolysis box (21) fixedly connected to the end of the water outlet pipe (13), and a high-temperature resistant ion exchange membrane (22) is fixedly provided at an upper position in the middle of the inner cavity of the electrolysis box (21).

5. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 4, characterized in that: An anode component (23) is fixedly provided on the left side of the inner cavity of the electrolytic box (21), and a cathode component (24) is fixedly provided on the right side of the inner cavity of the electrolytic box (21). Both the anode component (23) and the cathode component (24) are connected to the output end of the power storage device (12).

6. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 5, characterized in that: The seawater desalination mechanism (3) comprises a desalination tank (31) fixedly arranged on the top of the electrolysis tank (21), and a steam output pipe (32) connected to the top of the fresh water tank (11) is fixedly provided through the left side of the desalination tank (31).

7. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 6, characterized in that: A seawater inlet and outlet pipe (33) is fixedly provided through the right top and right bottom of the desalination tank (31), and a high-temperature resistant valve (34) is fixedly provided on the inner side of one end of the seawater inlet and outlet pipe (33) located inside the desalination tank (31).

8. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 7, characterized in that: Any group of the gas cooling mechanisms (4) includes a gas transmission pipe (41) fixedly penetrating the top of the electrolytic box (21), a diverter cover (42) fixedly connected to the top of the gas transmission pipe (41), and a heat exchange pipe (43) evenly fixedly penetrating the top of the diverter cover (42).

9. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 8, characterized in that: The desalination box (31) is fixedly sleeved on the outside of a plurality of heat exchange tubes (43), the top ends of the plurality of heat exchange tubes (43) are fixedly connected to a merging cover (44), and a gas output pipe (45) is fixedly provided at the center of the top of the merging cover (44).

10. The device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources according to claim 9, characterized in that: The invention also includes a method for using a device for producing hydrogen by water electrolysis using photovoltaic and wind power renewable resources, which specifically includes the following steps: S1, the photovoltaic power generation device and the wind power generation device input the electric energy into the power storage device (12) for storage, a path is formed between the power storage device (12), the anode component (23) and the cathode component (24), the anode component (23) and the cathode component (24) electrolyze the fresh water inside the electrolysis box (21), and then continuously generate hydrogen and oxygen on the left and right sides of the inner cavity of the electrolysis box (21); S2, oxygen generated near the anode component (23) and hydrogen generated near the cathode component (24) respectively enter the adjacent diverter cover (42) through the adjacent gas transmission pipe (41), and then dispersed from the adjacent diverter cover (42) to the adjacent heat exchange tube (43). After heat exchange and cooling with the seawater in the lower chamber through the heat exchange tube (43), they are output and stored through the adjacent gas output pipe (45); S3, during the heat exchange and cooling process, the seawater in the lower chamber is heated to generate water vapor, which passes through the second steam output channel (63) into the steam output pipe (32) and is cooled in the steam output pipe (32), and then falls from the output end of the steam output pipe (32) into the fresh water tank (11) to be stored; S4. When the seawater in the lower chamber is replaced, the hydraulic cylinder (51) drives its output shaft to continuously move downward. When the hydraulic cylinder (51) moves downward, the piston plate (53) is driven to move downward synchronously. When the piston plate (53) moves downward, it no longer presses the top of the C-shaped sealing plate (61). At this time, the stretched return spring (65) drives the guide rod (64) to move downward and reset. During the downward movement of the guide rod (64), the C-shaped sealing plate (61) is driven to move downward and reset synchronously, thereby making the second steam output channel (63) no longer collinear with the input end of the steam output pipe (32). At the same time, the C-shaped sealing plate (61) blocks the input end of the steam output pipe (32); S5, during the downward movement of the piston plate (53), the seawater in the lower chamber flushes the lower high-temperature resistant valve (34) and is discharged through the lower seawater inlet and outlet pipe (33). At the same time, the external seawater, under the negative pressure in the upper chamber, flushes the upper high-temperature resistant valve (34) and enters the upper chamber inside the desalination tank (31) through the upper seawater inlet and outlet pipe (33) to continue heat exchange; S6, during the downward movement of the piston plate (53), the plurality of second cleaning scrapers (54) are driven to clean scale generated on the outer surfaces of the plurality of heat exchange tubes (43) due to the heat exchange process in a vertical direction, and the cleaned scale is synchronously output along with the seawater in the lower chamber; S7. As the piston plate (53) continues to move downward, the bottom of the piston plate (53) is attached to the lower end of the C-shaped sealing plate (61) and drives it to move downward synchronously. At this time, the return spring (65) is gradually compressed. At the same time, the first steam output channel (62) is gradually connected with the steam output pipe (32) and becomes collinear during the downward movement of the C-shaped sealing plate (61). At this time, the steam generated in the upper chamber enters the steam output pipe (32) through the first steam output channel (62) and is cooled in the steam output pipe (32). Then, it falls from the output end of the steam output pipe (32) into the fresh water tank (11) and is stored.

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