A water electrolysis hydrogen production device with an electrolytic cell sealing structure and a hydrogen production method

Abstract

The present invention discloses a water electrolysis hydrogen production device and method with an electrolytic cell sealing structure, and the present invention relates to the technical field of water electrolysis hydrogen production. By respectively arranging a first cooling component and a second cooling component in the cathode region and the anode region, the coolant and electrolyte flowing in the first cooling component and the second cooling component can be used for heat exchange, so as to take away part of the heat generated by electrolysis in the electrolytic cell body, reduce the temperature of the electrolyte in the electrolytic cell body, thereby avoiding the electrolyte temperature being too high and accelerating the corrosion rate of the cathode plate and the anode plate, and also avoiding the situation that high temperature affects the sealing of the electrolytic cell body, and prolonging the service life of the electrolytic cell body; by arranging a heat exchange area control unit and a manual control component, it is ensured that the temperature in the electrolytic cell body will not have a large temperature difference due to the increase of the electrolysis rate and the electrolysis time, and the electrolyte temperature is ensured to be in a relatively stable state, thereby promoting the stable progress of electrolysis.

Description

Technical Field

[0001] The invention relates to the technical field of water electrolysis hydrogen production, and in particular to a water electrolysis hydrogen production device and a hydrogen production method with an electrolytic cell sealing structure. Background Art

[0002] As a green and sustainable energy conversion technology, water electrolysis to produce hydrogen is a key link in achieving energy transformation. It can convert abundant water resources into clean hydrogen energy, help reduce dependence on fossil fuels, reduce greenhouse gas emissions, and make energy supply more stable and reliable.

[0003] Among them, in the process of water electrolysis, when the current passes through the electrolyte, part of the electrical energy will be converted into thermal energy. This part of thermal energy will increase the temperature of the electrolyte, thus having an adverse effect on the electrolytic hydrogen production process.

[0004] A water electrolysis hydrogen production device disclosed in the patent application with reference publication number CN219470214U, through which a small amount of water carried by hydrogen and oxygen is filtered through a filter plate, the hydrogen and oxygen are purer, the outer wall of the filter plate is fixedly connected with a clamping groove adapted to the slot seat, the clamping groove is clamped on the slot seat, the upper end openings of the first gas collecting tank and the second gas collecting tank are clamped with a closing cover, the closing cover is connected with an air outlet pipe, and the air outlet pipe is provided with a switch valve, when the filter plate is saturated, that is, when the service life is reached, the filter plate can be directly lifted up by opening the closing cover, the clamping groove is separated from the slot seat, and the filter plate can be replaced, the operation is simple, relatively pure hydrogen and oxygen can be collected, and the filter plate is easy to replace, and the device as a whole is more practical; The above-mentioned prior art water electrolysis hydrogen production device has the following defects in actual use: During the process of water electrolysis, the temperature in the electrolytic cell will gradually increase. Excessive temperature will cause the performance of the proton exchange membrane to decline and the resistance to increase, so a higher electrolysis voltage is required to maintain the same current density in the electrolysis process, which increases the energy consumption of hydrogen production. In addition, high temperature will also cause the proton exchange membrane to expand and deform, thereby affecting the sealing of the electrolytic cell. Under high temperature conditions, the water in the electrolyte evaporates more easily, resulting in an increase in the electrolyte concentration. Excessively high electrolyte concentration will cause corrosion to the internal structure of the electrolytic cell, leading to accelerated equipment aging and shortened service life.

[0005] Therefore, the present invention proposes a water electrolysis hydrogen production device and a hydrogen production method with an electrolytic cell sealing structure to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a water electrolysis hydrogen production device and a hydrogen production method with an electrolytic cell sealing structure, which solves the problem that the temperature in the electrolytic cell will gradually increase during the water electrolysis process. Excessive temperature will cause the performance of the proton exchange membrane to decline, so that a higher electrolysis voltage is required to maintain the same current density in the electrolysis process, which increases the energy consumption of hydrogen production. In addition, high temperature will also cause the proton exchange membrane to expand and deform, thereby affecting the sealing of the electrolytic cell. In addition, under high temperature conditions, the water in the electrolyte is more likely to evaporate, resulting in an increase in the electrolyte concentration. The excessively high concentration of electrolyte will cause corrosion to the internal structure of the electrolytic cell, resulting in accelerated equipment aging and shortened service life.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A water electrolysis hydrogen production device with an electrolytic cell sealing structure, comprising an operating box and protective doors rotatably arranged on both sides of the front of the operating box, and also comprising: The electrolytic cell mechanism is arranged inside the operating box, and converts electrical energy into chemical energy during operation to complete the conversion of water into hydrogen and oxygen, and an electrolytic cell sealing structure is also arranged inside the electrolytic cell to prevent leakage of the electrolyte; The electrolytic cell mechanism comprises: The electrolytic cell assembly, the first cooling assembly, the second cooling assembly, the coolant pumping assembly and the coolant storage tank cooperate with each other to adjust the cooling amount of the electrolytic cell assembly according to the electrolysis rate to take away part of the heat inside the electrolytic cell and reduce the temperature inside the electrolytic cell assembly; A water purification mechanism is arranged on one side of the electrolytic cell mechanism and connected to the electrolytic cell mechanism through a water pipe, and is used to purify clean water input from the outside and use the treated water as a raw material for electrolysis and hydrogen production in the electrolytic cell mechanism; The gas storage mechanism is located in front of the electrolytic cell mechanism and is connected to the electrolytic cell mechanism through a gas pipe. The hydrogen and oxygen generated by electrolysis of the electrolytic cell mechanism are respectively stored in the gas storage mechanism.

[0008] Furthermore, it also includes a control box, which is located at the back of the electrolyzer mechanism and connected to the electrolyzer mechanism and the water purification mechanism through cables, and is used to control the process of water electrolysis and hydrogen production; The electrolytic cell assembly includes an electrolytic cell body fixedly arranged inside an operating box, a proton exchange membrane is arranged at a middle position inside the electrolytic cell body for proton conduction, electron blocking and structural support during the electrolysis process, and a cathode plate and an anode plate are arranged inside the electrolytic cell body and on both sides of the proton exchange membrane, respectively. The cathode plate, the anode plate and an external power supply form a complete circuit, and the opening or closing of the circuit is controlled by a control box. A water injection pipe for replenishing clean water into the electrolytic cell body is also fixedly arranged on the outer wall of the electrolytic cell body near the anode plate, and an oxygen output pipe and a hydrogen output pipe for exporting hydrogen and oxygen formed by electrolysis of the cathode plate and the anode plate are also fixedly arranged on both sides of the top of the electrolytic cell body.

[0009] Furthermore, the structures of cooling component No. 1 and cooling component No. 2 are the same, and are respectively used to cool the areas where the cathode plate and the anode plate are located. The cooling component No. 1 includes multiple heat exchange components that are longitudinally equidistantly distributed on the left and right sides. The multiple heat exchange components on the left and the multiple heat exchange components on the right are respectively connected by connecting pipe one and connecting pipe two, which are used to transport the coolant input by the coolant pumping component to the multiple heat exchange components respectively, and the multiple heat exchange components jointly adjust the heat exchange area between the heat exchange components and the electrolyte through the same manual control component.

[0010] Furthermore, the manual control component includes a long rack one and a long rack two which are arranged opposite to each other on the left and right, and the top ends of the long rack one and the long rack two are commonly connected to a horizontal plate, a screw is rotatably arranged at the middle position of the top of the horizontal plate, the top end of the screw thread penetrates the electrolytic cell body and is fixedly provided with a knob, a pointer is fixedly sleeved on the outer wall of the screw and located on the outside of the electrolytic cell body, and a position marking plate for marking the position of the pointer is also fixedly arranged on the top of the electrolytic cell body.

[0011] Furthermore, the heat exchange component includes a heat exchange cylinder installed inside the electrolytic cell body through a supporting frame, and a heat exchange area control unit for controlling the size of the coolant channel is arranged inside the heat exchange cylinder to adjust the heat exchange area size of the coolant and the external electrolyte. A coolant inlet and a coolant outlet are respectively provided at both ends of the heat exchange cylinder for introducing the external input coolant into the heat exchange area control unit, and then exporting the coolant after heat exchange to the coolant storage tank.

[0012] Furthermore, the heat exchange area control unit includes a fixed baffle unit and a movable baffle unit, the movable baffle unit includes a rotating shaft rotatably arranged inside the heat exchange cylinder, one end of the rotating shaft is sealed and rotated through the heat exchange cylinder and is fixedly provided with a gear, and a No. 1 baffle is also fixedly provided on the side wall of the rotating shaft, and a turbulence unit 1 for disturbing the coolant is also provided on the outer wall of the No. 1 baffle near the fixed baffle unit, and annular grooves are provided on both sides of the outer wall of the rotating shaft.

[0013] Further, the fixed baffle unit comprises collars respectively and sealingly rotatably sleeved in the outer walls of the two annular grooves, a No. 2 baffle is fixedly arranged on the outer walls of the two collars, the No. 2 baffle is sealed and rotatably connected to the outer wall of the rotating shaft, and a spoiler unit 2 having the same structure and function as the spoiler unit 1 is arranged on the outer wall of the No. 2 baffle close to the movable baffle unit; The spoiler unit 2 includes a transmission shaft 1 rotatably arranged on the outer wall of the second partition plate through a bracket, and a plurality of impellers 1 are evenly and fixedly sleeved on the outer wall of the transmission shaft 1 for stirring the coolant by utilizing the thrust of the coolant.

[0014] Furthermore, the coolant pumping assembly includes a box body fixedly arranged on the side wall of the electrolytic cell body, and the interior of the box body is provided with a power conversion assembly 1, a power conversion assembly 2 and a pumping execution unit from top to bottom in sequence. The power conversion assembly 1 and the power conversion assembly 2 respectively convert the kinetic energy of hydrogen and oxygen generated by electrolysis into energy for driving their own operation, and the pumping execution unit uses the power of the power conversion assembly 1 and the power conversion assembly 2 to drive itself to pump the coolant. The power conversion assembly 1, the power conversion assembly 2 and the pumping execution unit are commonly connected to a transmission shaft 2 for power transmission, and the outer walls of the power conversion assembly 1 and the power conversion assembly 2 are respectively provided with a hydrogen inlet pipe and an oxygen inlet pipe for introducing hydrogen and oxygen. The structures of the power conversion assembly 1, the power conversion assembly 2 and the pumping execution unit are the same.

[0015] Furthermore, the power conversion component 1 includes a volute fixedly arranged on the inner wall of the casing by a mounting bracket, and a discharge pipe and a supply pipe connected to the interior of the volute are fixedly arranged on both sides of the outer wall thereof, and an impeller 2 is also rotatably arranged inside the volute, and the hydrogen and oxygen generated by electrolysis enter the respective interiors through the supply pipes in the power conversion component 1 and the power conversion component 2 respectively, so as to drive the impeller 2 inside the respective interiors to rotate, and the transmission shaft 2 is fixedly connected to the power conversion component 1, the power conversion component 2, and the impeller 2 in the pumping execution unit at the same time, the supply pipe in the pumping execution unit is fixedly connected to the coolant storage tank through a metal conduit, and the discharge pipe in the pumping execution unit is connected to the connecting pipe 1 and the connecting pipe 2 in the cooling component No. 1 and the cooling component No. 2 respectively through the coolant conduit.

[0016] The present invention also discloses a method for producing hydrogen by electrolysis of water with an electrolyzer sealing structure, which is used in a device for producing hydrogen by electrolysis of water with an electrolyzer sealing structure. The method comprises the following steps: Step 1: The water purification mechanism purifies the clean water input from the outside to form high-purity water, and adds a certain amount of potassium hydroxide or other strong alkaline liquid in proportion to increase the conductivity of the water, and then inputs it into the electrolytic cell mechanism as an electrolyte for electrolytic hydrogen production; Step 2, controlling the electrolytic cell mechanism to perform electrolysis operation on the input electrolyte, and the hydrogen and oxygen generated by the electrolysis are output through the coolant pumping component and then stored in the gas storage mechanism; Step 3, the coolant pumping component uses the kinetic energy of the flow of hydrogen and oxygen to pump the coolant in the coolant storage tank to circulate, cools the electrolyte in the electrolytic cell body through cooling component No. 1 and cooling component No. 2, and at the same time adaptively adjusts the heat exchange area between cooling component No. 1 and cooling component No. 2 and the electrolyte according to the electrolysis rate.

[0017] The present invention provides a water electrolysis hydrogen production device and hydrogen production method with an electrolytic cell sealing structure. Compared with the prior art, it has the following beneficial effects: 1. A water electrolysis hydrogen production device and hydrogen production method with an electrolytic cell sealing structure. By arranging a first cooling component and a second cooling component in the cathode region and the anode region respectively, the coolant flowing in the first cooling component and the second cooling component can be used to exchange heat with the electrolyte in the electrolytic cell body, so as to take away part of the heat generated by electrolysis in the electrolytic cell body, reduce the temperature of the electrolyte in the electrolytic cell body, and make the electrolysis process always within a relatively stable temperature range, thereby avoiding the electrolyte temperature being too high and accelerating the corrosion rate of the cathode plate and the anode plate, and also avoiding the situation where high temperature affects the sealing of the electrolytic cell body, so that the electrolytic cell body will not leak due to high temperature, thereby extending the service life of the electrolytic cell body.

[0018] 2. A water electrolysis hydrogen production device and hydrogen production method with an electrolytic cell sealing structure, by setting a heat exchange area control unit and a manual control component, can adjust the distance between the first partition and the second partition in the heat exchange area control unit according to the electrolysis rate, control the area of ​​the heat exchange cylinder covered by the area between the first partition and the second partition, thereby controlling the size of the coolant flow channel between the first partition and the second partition, that is, when the relative distance between the first partition and the second partition increases, the contact area between the coolant and the inner wall of the heat exchange cylinder is larger, so that the coolant passes through the heat exchange cylinder and the electrolyte exchange The larger heat area can take away more heat from the electrolyte per unit time. Conversely, when the relative distance between the No. 1 partition and the No. 2 partition decreases, less heat from the electrolyte is taken away per unit time, ensuring that the temperature inside the electrolytic cell will not show a large difference due to the increase in the electrolysis rate and the electrolysis time, ensuring that the electrolyte temperature is in a relatively stable state, thereby promoting the stable progress of the electrolysis. Moreover, the heat exchange area in the heat exchange components at multiple positions can be adjusted synchronously through the manual control components, and the adjustment time is greatly reduced, making the operation process simpler and more efficient.

[0019] 3. A water electrolysis hydrogen production device and hydrogen production method with an electrolytic cell sealing structure, by arranging a turbulence unit 1 and a turbulence unit 2 in a heat exchange area control unit, can slow down the speed of the coolant passing through the heat exchange cylinder, thereby extending the heat exchange time between the coolant and the electrolyte, so that the electrolyte can be fully cooled, and the impeller 1 can be driven by the flowing coolant to rotate, and the impeller can stir the surrounding coolant, so that the coolant with a lower temperature located at the center of the No. 1 partition and the No. 2 partition can also directly participate in the heat exchange with the electrolyte, thereby further improving the cooling effect of the No. 1 cooling component and the No. 2 cooling component.

[0020] 4. A water electrolysis hydrogen production device and hydrogen production method with an electrolytic cell sealing structure, which can use the hydrogen and oxygen generated by electrolysis as a power source to drive the rotation of impeller 2 in power conversion component 1 and power conversion component 2 by setting a coolant pumping component, and the rotation of impeller 2 can synchronously drive the pumping execution unit to operate, so that the coolant can circulate in the coolant storage tank, the first cooling component and the second cooling group under the suction force of the pumping execution unit, so as to achieve the purpose of continuous cooling of the electrolyte. In this process, there is no need to set up a separate power device for the flow of the coolant, which not only saves the cost of setting up the power device, but also makes the structure simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the first overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the second overall three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 4 It is a schematic diagram of the first three-dimensional structure of the electrolytic cell mechanism of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram of part F in FIG. Figure 6 It is a second three-dimensional structural schematic diagram of the electrolytic cell mechanism of the present invention; Figure 7 It is a first cross-sectional structural schematic diagram of the electrolytic cell mechanism of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A; Fig. 9 It is a second cross-sectional structural schematic diagram of the electrolytic cell mechanism of the present invention; Fig.10 This is a schematic diagram of the structure of cooling assembly No. 1 of the present invention; Fig.11 For the present invention Fig.10 A schematic diagram of the enlarged structure of part C in FIG. Fig.12 This is a schematic diagram of the first cross-sectional structure of the heat exchange component of the present invention; Fig.13 For the present invention Fig.12 The D part in the figure is an enlarged structural diagram; Fig.14 This is a second cross-sectional structural schematic diagram of the heat exchange component of the present invention; Fig.15 This is a third cross-sectional structural schematic diagram of the heat exchange component of the present invention; Fig.16 This is a schematic diagram of the heat exchange area control unit in a decomposed state; Fig.17 For the present invention Fig.16 The enlarged structural diagram of part E in FIG. Fig.18 It is a schematic cross-sectional view of the structure of the coolant pumping assembly of the present invention; Fig.19 For the present invention Fig.18 A schematic diagram of the enlarged structure of part B in FIG. Fig. 20 This is a schematic structural diagram of the coolant pumping assembly of the present invention with the box body removed.

[0022] In the figure: 1, operation box; 2, protection door; 3, electrolytic cell mechanism; 4, water purification mechanism; 5, gas storage mechanism; 6, control box; 7, electrolytic cell body; 8, proton exchange membrane; 9, cathode plate; 10, anode plate; 11, cooling assembly No. 1; 111, heat exchange assembly; a1, heat exchange cylinder; a2, coolant inlet; a3, coolant outlet; a4, heat dissipation fin; a5, heat exchange area control unit; a51, rotating shaft; a52, gear; a53, No. 1 partition; a54, spoiler unit 1; a55, annular groove; a56, collar; a57, No. 2 partition; a58, transmission shaft 1; a59, impeller 1; 112, connecting pipe 1; 113 , connecting pipe two; 114, long rack one; 115, long rack two; 116, horizontal plate; 117, screw; 118, position marking plate; 119, pointer; 12, cooling assembly No. 2; 13, coolant pumping assembly; 131, box body; 132, power conversion assembly one; 1321, volute; 1322, impeller two; 1323, discharge pipe; 1324, supply pipe; 133, power conversion assembly two; 134, pumping execution unit; 135, transmission shaft two; 136, hydrogen inlet pipe; 137, oxygen inlet pipe; 14, coolant storage tank; 15, water injection pipe; 16, oxygen output pipe; 17, hydrogen output pipe; 18, coolant duct. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0024] The present invention provides three technical solutions: a water electrolysis hydrogen production device with an electrolytic cell sealing structure, specifically including the following embodiments: like Figure 1-Figure 9 The first embodiment is shown: a water electrolysis hydrogen production device with an electrolyzer sealing structure, comprising an operation box 1 and protective doors 2 rotatably arranged on both sides of the front of the operation box 1, and further comprising: The electrolytic cell mechanism 3 is arranged inside the operating box 1, and converts electrical energy into chemical energy during operation to complete the conversion of water into hydrogen and oxygen, and an electrolytic cell sealing structure is also arranged inside the electrolytic cell to prevent leakage of the electrolyte; The electrolytic cell mechanism 3 comprises: The electrolytic cell assembly, the first cooling assembly 11, the second cooling assembly 12, the coolant pumping assembly 13 and the coolant storage tank 14 cooperate with each other to adjust the cooling amount of the electrolytic cell assembly according to the electrolysis rate to take away part of the heat inside the electrolytic cell and reduce the temperature inside the electrolytic cell assembly; The water purification mechanism 4 is arranged on one side of the electrolytic cell mechanism 3 and connected to the electrolytic cell mechanism 3 through a water pipe, and is used to purify the external input clean water, remove impurities in the water that affect the electrolysis process, and use the treated water as a raw material for electrolysis and hydrogen production of the electrolytic cell mechanism 3; The gas storage mechanism 5 is located in front of the electrolyzer mechanism 3 and connected to the electrolyzer mechanism 3 through a gas pipe. The hydrogen and oxygen generated by electrolysis of the electrolyzer mechanism 3 are stored in the gas storage mechanism 5 respectively. The gas storage mechanism 5 includes a hydrogen storage tank and an oxygen storage tank, which are used to store hydrogen and oxygen respectively, and the hydrogen storage tank and the oxygen storage tank can be detached from the electrolyzer mechanism 3; It also includes a control box, which is located at the back of the electrolyzer mechanism and is connected to the electrolyzer mechanism and the water purification mechanism through cables, and is used to control the process of water electrolysis to produce hydrogen.

[0025] The electrolytic cell assembly includes an electrolytic cell body 7 fixedly arranged inside an operating box 1, a proton exchange membrane 8 is arranged in the middle position inside the electrolytic cell body 7, which is used for proton conduction, electron blocking and structural support during the electrolysis process, and a cathode plate 9 and an anode plate 10 are arranged inside the electrolytic cell body 7 and on both sides of the proton exchange membrane 8, respectively. The cathode plate 9, the anode plate 10 and an external power supply form a complete circuit, and the opening or closing of the circuit is controlled by a control box 6. A water injection pipe 15 for replenishing clean water into the electrolytic cell body 7 is also fixedly arranged on the outer wall of the electrolytic cell body 7 near the anode plate 10, and an oxygen output pipe 16 and a hydrogen output pipe 17 for exporting hydrogen and oxygen formed by electrolysis of the cathode plate 9 and the anode plate 10 are also fixedly arranged on both sides of the top of the electrolytic cell body 7.

[0026] like Figure 10-Figure 17 A second embodiment is shown, in which the first cooling component 11 and the second cooling component 12 have the same structure and are respectively used to cool the areas where the cathode plate 9 and the anode plate 10 are located. The first cooling component 11 includes a plurality of heat exchange components 111 that are longitudinally equidistantly distributed on both sides. The plurality of heat exchange components 111 on the left and the plurality of heat exchange components 111 on the right are respectively connected by a connecting pipe 112 and a connecting pipe 2 113, which are used to transport the coolant input by the coolant pumping component 13 to the plurality of heat exchange components 111, and the plurality of heat exchange components 111 are jointly adjusted through the same manual control component to adjust the heat exchange area between the heat exchange component 111 and the electrolyte. The manual control assembly includes a long rack 114 and a long rack 2 115 which are arranged opposite to each other on the left and right sides. The tops of the long rack 114 and the long rack 2 115 are connected to a horizontal plate 116. A screw 117 is rotatably arranged in the middle of the top of the horizontal plate 116. The top of the screw 117 is threaded through the electrolytic cell body 7 and a knob is fixedly arranged. A pointer 119 is fixedly arranged on the outer wall of the screw 117 and located outside the electrolytic cell body 7. A position marking disk 118 for marking the position of the pointer 119 is also fixedly arranged on the top of the electrolytic cell body 7. The multiple heat exchange assemblies 111 on the left side and the multiple heat exchange assemblies 111 on the right side are symmetrically distributed with the screw 117 as the symmetry axis, so that the long rack 114 and the long rack 2 115 can simultaneously increase or decrease the heat exchange area of ​​the left and right heat exchange assemblies 111; The heat exchange assembly 111 includes a heat exchange cylinder a1 installed inside the electrolytic cell body 7 through a support frame, and a heat exchange area control unit a5 for controlling the size of the coolant channel is arranged inside the heat exchange cylinder a1 to adjust the heat exchange area size between the coolant and the external electrolyte. The two ends of the heat exchange cylinder a1 are respectively provided with a coolant inlet a2 and a coolant outlet a3, which are used to introduce the coolant input from the outside into the heat exchange area control unit a5, and then guide the coolant after heat exchange into the coolant storage tank 14. One end of the coolant outlet a3 in all heat exchange assemblies 111 is connected to the coolant storage tank 14, and a plurality of heat dissipation fins are evenly arranged on the outer wall of the coolant storage tank 14, which is filled with coolant, and the coolant can exchange heat with the air through the heat dissipation fins to reduce the coolant temperature inside it; The heat exchange area control unit a5 includes a fixed baffle unit and a movable baffle unit, the movable baffle unit includes a rotating shaft a51 rotatably arranged inside the heat exchange tube a1, one end of the rotating shaft a51 is sealed and rotated to penetrate the heat exchange tube a1 and is fixedly provided with a gear a52, and a No. 1 baffle a53 is also fixedly provided on the side wall of the rotating shaft a51, and a disturbance unit a54 for disturbing the coolant is also provided on the outer wall of the No. 1 baffle a53 near the fixed baffle unit, and an annular groove a55 is provided on both sides of the outer wall of the rotating shaft a51. The No. 1 baffle a53 and the inner wall of the heat exchange tube a1 are in a sealed sliding connection, the side wall of the No. 2 baffle a57 ​​away from the rotating shaft a51 is fixedly connected to the heat exchange tube a1, and the No. 1 baffle a53, the No. 2 baffle a57, the rotating shaft a51 and the inner wall of the heat exchange tube a1 together form a relatively closed space, and the coolant can only flow through the closed space; The fixed partition unit includes a sleeve ring a56 which is respectively and sealingly rotatably sleeved in the outer walls of the two annular grooves a55, a No. 2 partition plate a57 ​​is fixedly arranged on the outer walls of the two sleeve rings a56, the No. 2 partition plate a57 ​​and the outer wall of the rotating shaft a51 are sealed and rotatably connected, and a spoiler unit 2 having the same structure and function as the spoiler unit 1 a54 is arranged on the outer wall of the No. 2 partition plate a57 ​​close to the movable partition unit; a plurality of gears a52 located on the left side are meshedly connected with the long rack 1 114, and a plurality of gears a52 located on the right side are meshedly connected with the long rack 2 115; The second spoiler unit includes a transmission shaft a58 which is rotatably arranged on the outer wall of the second partition a57 through a bracket, and a plurality of impellers a59 which utilize the thrust of the coolant to stir the coolant are evenly and fixedly sleeved on the outer wall of the transmission shaft a58.

[0027] like Figure 18-Figure 20The third embodiment is shown, the coolant pumping assembly 13 comprises a box body 131 fixedly arranged on the side wall of the electrolytic cell body 7, and the box body 131 is provided with a power conversion assembly 1 132, a power conversion assembly 2 133 and a pumping execution unit 134 in order from top to bottom. The power conversion assembly 1 132 and the power conversion assembly 2 133 respectively convert the kinetic energy of hydrogen and oxygen generated by electrolysis into energy to drive their own operation, and the pumping execution unit 134 utilizes the power conversion assembly 1 132 and the power conversion assembly 2 133 to convert the kinetic energy of hydrogen and oxygen generated by electrolysis into energy to drive their own operation. 3, the power driving itself performs the work of pumping the coolant, the power conversion assembly 1 132, the power conversion assembly 2 133 and the pumping execution unit 134 are connected to a transmission shaft 2 135 for power transmission, and the outer walls of the power conversion assembly 1 132 and the power conversion assembly 2 133 are respectively provided with a hydrogen introduction pipe 136 and an oxygen introduction pipe 137 for introducing hydrogen and oxygen, and the structures of the power conversion assembly 1 132, the power conversion assembly 2 133 and the pumping execution unit 134 are the same; The power conversion assembly 132 includes a volute 1321 fixedly mounted on the inner wall of the housing 131 by a mounting bracket, and a discharge pipe 1323 and a supply pipe 1324 connected to the interior of the volute 1321 are fixedly mounted on both sides of the outer wall of the volute 1321, and an impeller 1322 is rotatably mounted inside the volute 1321. The hydrogen and oxygen generated by electrolysis enter the respective interiors through the supply pipes 1324 in the power conversion assembly 132 and the power conversion assembly 2 133, respectively, to drive the impellers 1323 in the respective interiors. 1322 rotates, the transmission shaft 2 135 is fixedly connected to the power conversion assembly 1 132, the power conversion assembly 2 133, and the impeller 2 1322 in the pumping execution unit 134 at the same time, the supply pipe 1324 in the pumping execution unit 134 is fixedly connected to the coolant storage tank 14 through the metal conduit, and the discharge pipe 1323 in the pumping execution unit 134 is respectively connected to the connecting pipe 1 112 and the connecting pipe 2 113 in the first cooling assembly 11 and the second cooling assembly 12 through the coolant conduit 18. The two ends of the transmission shaft 2 135 rotate through the power conversion assembly 1 132 and the pumping execution unit 134 and extend to the outside, the hydrogen introduction pipe 136 and the oxygen introduction pipe 137 are respectively fixedly connected to the supply pipe 1324 in the power conversion assembly 1 132 and the power conversion assembly 2 133, the hydrogen introduction pipe 136 is connected to the oxygen output pipe 16, and the hydrogen output pipe 17 is connected to the oxygen introduction pipe 137.

[0028] The embodiment of the present invention further provides a method for producing hydrogen by electrolysis of water with an electrolyzer sealing structure, which is used in a device for producing hydrogen by electrolysis of water with an electrolyzer sealing structure. The method comprises the following steps: Step 1: The water purification mechanism 4 purifies the clean water input from the outside to form high-purity water, and adds a certain amount of potassium hydroxide or other strong alkaline liquid in proportion to increase the conductivity of the water, and then inputs it into the electrolytic cell mechanism 3 as an electrolyte for electrolytic hydrogen production; Step 2, the control box 6 controls the electrolytic cell mechanism 3 to perform electrolysis operation on the input electrolyte, and the hydrogen and oxygen formed by electrolysis are output through the coolant pumping assembly 13 and stored in the gas storage mechanism 5; the specific process is: the control box 6 controls the cathode plate 9, the anode plate 10 and the circuit where the external power supply is located to be connected, and a closed circuit is formed between the cathode plate 9, the anode plate 10, the external power supply and the electrolyte, and the water molecules undergo a reduction reaction at the cathode plate 9 to generate hydrogen, and at the same time, an oxidation reaction occurs at the anode plate 10 to generate oxygen; Hydrogen is input into the power conversion component 1 132 through the oxygen output pipe 16 and the hydrogen inlet pipe 136, and oxygen is input into the power conversion component 2 133 through the hydrogen output pipe 17 and the oxygen inlet pipe 137. The hydrogen enters the volute 1321 through the hydrogen inlet pipe 136 and the supply pipe 1324 to drive the impeller 2 1322 to rotate. At the same time, the oxygen enters the power conversion component 2 133 through the oxygen inlet pipe 137 and the supply pipe 1324 in the power conversion component 2 133 to drive the impeller 2 1322 inside to rotate. Since the transmission shaft 2 135 is fixedly connected to the impeller 2 1322 in the power conversion component 1 132 and the power conversion component 2 133 at the same time, the rotation of the impeller 2 1322 can synchronously drive the transmission shaft 2 135 to rotate; Since the transmission shaft 135 is fixedly connected to the impeller 1322 in the pumping execution unit 134 at the same time, the impeller 1322 in the pumping execution unit 134 is driven to rotate synchronously when the transmission shaft 135 rotates. The pumping execution unit 134 and the coolant conduit 18 and the conduit connected to the pumping execution unit 134 are filled with coolant. The impeller 1322 in the pumping execution unit 134 promotes the directional flow of the coolant during the rotation process, so that the coolant in the coolant storage tank 14 enters the pumping execution unit 134 through the metal conduit, and flows into the coolant conduit 18 through the discharge pipe 1323 in the pumping execution unit 134. The coolant is divided at the end of the coolant conduit 18 and enters the No. 1 cooling component 11 and the No. 2 cooling component 12 respectively. Then the coolant passes through the No. 1 cooling component The connecting pipes 112 and 113 in the No. 1 and No. 2 cooling components 11 and 12 enter the multiple heat exchange components 111 in sequence, and the coolant enters the space between the No. 2 partition a57 and the No. 1 partition a53 through the coolant inlet a2. The coolant exchanges heat with the surrounding electrolyte through the multiple heat dissipation fins a4 evenly distributed on the outer wall of the heat exchange cylinder a1, thereby reducing the temperature of the electrolyte. The coolant with increased temperature returns to the coolant storage tank 14 through the coolant outlet a3. The coolant in the coolant storage tank 14 dissipates heat through the heat dissipation fins on the outer wall to reduce the temperature of the coolant. It should be noted here that no matter how the No. 2 partition a57 and the No. 1 partition a53 are adjusted, the coolant inlet a2 and the coolant outlet a3 are always connected with the space between the No. 2 partition a57 and the No. 1 partition a53; When the coolant enters the space between the second baffle a57 ​​and the first baffle a53 through the coolant inlet a2, the flowing coolant pushes the impeller a59 in the spoiler unit a54 and the second spoiler unit to rotate. While the impeller a59 blocks the flow of the coolant to reduce its flow rate, it also stirs the surrounding coolant flow when the impeller a59 rotates, so that the temperature of the surrounding coolant tends to be consistent, so that the coolant located at the center between the second baffle a57 ​​and the first baffle a53 can also participate in the cooling work; In the actual water electrolysis process, different electrolysis rates generate different amounts of heat per unit time, i.e., a faster electrolysis rate generates more heat per unit time. Therefore, the heat exchange capacity of the first cooling component 11 and the second cooling component 12 is adjusted according to the electrolysis rate to ensure that the temperature change of the electrolyte in the electrolytic cell body 7 does not produce a large difference. When adjusting the heat exchange capacity of cooling component No. 11 and cooling component No. 2 12, it is necessary to manually turn the knob at the end of screw 117. When screw 117 is turned clockwise, long rack 114 and long rack 2 115 move downward synchronously under the push of cross plate 116. Long rack 114 and long rack 2 115 respectively drive multiple gears a52 located on the left and right sides to rotate synchronously. At this time, the distance between partition No. 1 a53 and partition No. 2 a57 is reduced, that is, the coolant flow channel space between the two is reduced, and the outer wall area of ​​heat exchange cylinder a1 relative to the space between partition No. 1 a53 and partition No. 2 a57 is correspondingly reduced, so that the contact area between the coolant flowing through the space between partition No. 1 a53 and partition No. 2 a57 and the electrolyte is reduced, and the heat exchange between the coolant and the electrolyte per unit time is reduced accordingly. Small, on the contrary, rotate the screw rod 117 counterclockwise, the long rack 114 and the long rack 2 115 move upward synchronously under the push of the horizontal plate 116, and the distance between the first partition a53 and the second partition a57 increases, that is, the coolant flow channel space between the two increases, so that the contact area between the coolant flowing through the space between the first partition a53 and the second partition a57 and the electrolyte increases, and the heat exchange between the coolant and the electrolyte per unit time increases accordingly, and when adjusting, the position where the pointer 119 rotates on the surface of the position marking disk 118 can be referred to, that is, from the initial position corresponding to the pointer 119, the pointer 119 rotates clockwise or counterclockwise to respectively reduce or increase the distance between the first partition a53 and the second partition a57, and the scale value on the surface of the position marking disk 118 corresponds to the adjustment amount during the adjustment process; Step 3, the coolant pumping component 13 uses the kinetic energy of the flow of hydrogen and oxygen to pump the coolant in the coolant storage tank 14 to circulate, cool the electrolyte in the electrolytic cell body 7 through the No. 1 cooling component 11 and the No. 2 cooling component 12, and at the same time adaptively adjust the heat exchange area between the No. 1 cooling component 11 and the No. 2 cooling component 12 and the electrolyte according to the electrolysis rate.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water electrolysis hydrogen production device with an electrolytic cell sealing structure, comprising an operating box and protective doors rotatably arranged on both sides of the front of the operating box through hinges, characterized in that: Also includes: The electrolytic cell mechanism is arranged inside the operating box, and converts electrical energy into chemical energy during operation to complete the conversion of water into hydrogen and oxygen, and an electrolytic cell sealing structure is also arranged inside the electrolytic cell to prevent leakage of the electrolyte; The electrolytic cell mechanism comprises: The electrolytic cell assembly, the first cooling assembly, the second cooling assembly, the coolant pumping assembly and the coolant storage tank cooperate with each other to adjust the cooling amount of the electrolytic cell assembly according to the electrolysis rate to take away part of the heat inside the electrolytic cell and reduce the temperature inside the electrolytic cell assembly; A water purification mechanism is arranged on one side of the electrolytic cell mechanism and connected to the electrolytic cell mechanism through a water pipe, and is used to purify clean water input from the outside and use the treated water as a raw material for electrolysis and hydrogen production in the electrolytic cell mechanism; The gas storage mechanism is located in front of the electrolytic cell mechanism and is connected to the electrolytic cell mechanism through a gas pipe. The hydrogen and oxygen generated by electrolysis of the electrolytic cell mechanism are respectively stored in the gas storage mechanism.

2. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 1, characterized in that: It also includes a control box, which is located at the back of the electrolyzer mechanism and is connected to the electrolyzer mechanism and the water purification mechanism through cables, and is used to control the process of water electrolysis hydrogen production; The electrolytic cell assembly includes an electrolytic cell body fixedly arranged inside an operating box, a proton exchange membrane is arranged at a middle position inside the electrolytic cell body for proton conduction, electron blocking and structural support during the electrolysis process, and a cathode plate and an anode plate are arranged inside the electrolytic cell body and on both sides of the proton exchange membrane, respectively. The cathode plate, the anode plate and an external power supply form a complete circuit, and the opening or closing of the circuit is controlled by a control box. A water injection pipe for replenishing clean water into the electrolytic cell body is also fixedly arranged on the outer wall of the electrolytic cell body near the anode plate, and an oxygen output pipe and a hydrogen output pipe for exporting hydrogen and oxygen formed by electrolysis of the cathode plate and the anode plate are also fixedly arranged on both sides of the top of the electrolytic cell body.

3. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 1, characterized in that: The structures of cooling component No. 1 and cooling component No. 2 are the same, and are respectively used to cool the areas where the cathode plate and the anode plate are located. The cooling component No. 1 includes multiple heat exchange components that are longitudinally equidistantly distributed on the left and right sides. The multiple heat exchange components on the left and the multiple heat exchange components on the right are respectively connected by connecting pipe 1 and connecting pipe 2, which are used to transport the coolant input by the coolant pumping component to the multiple heat exchange components respectively, and the multiple heat exchange components jointly adjust the heat exchange area between the heat exchange components and the electrolyte through the same manual control component.

4. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 3, characterized in that: The manual control component includes a long rack one and a long rack two arranged opposite to each other on the left and right, and the top ends of the long rack one and the long rack two are connected to a horizontal plate. A screw is rotatably arranged at the middle position of the top of the horizontal plate. The top end of the screw thread penetrates the electrolytic cell body and is fixedly provided with a knob. A pointer is fixedly sleeved on the outer wall of the screw and located on the outside of the electrolytic cell body, and a position marking disk for marking the position of the pointer is also fixedly arranged on the top of the electrolytic cell body.

5. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 3, characterized in that: The heat exchange assembly includes a heat exchange cylinder installed inside the electrolytic cell body through a supporting frame, and a heat exchange area control unit for controlling the size of the coolant channel is arranged inside the heat exchange cylinder to adjust the heat exchange area size of the coolant and the external electrolyte. A coolant inlet and a coolant outlet are respectively opened at both ends of the heat exchange cylinder, which are used to introduce the coolant input from the outside into the heat exchange area control unit, and then lead the coolant after heat exchange to the coolant storage tank.

6. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 5, characterized in that: The heat exchange area control unit includes a fixed baffle unit and a movable baffle unit. The movable baffle unit includes a rotating shaft rotatably arranged inside the heat exchange tube. One end of the rotating shaft is sealed and rotates through the heat exchange tube and is fixedly provided with a gear. A No. 1 baffle is also fixedly provided on the side wall of the rotating shaft. A disturbing unit 1 for disturbing the coolant is also provided on the outer wall of the No. 1 baffle near the fixed baffle unit, and annular grooves are provided on both sides of the outer wall of the rotating shaft.

7. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 6, characterized in that: The fixed baffle unit comprises collars respectively and sealingly rotatably sleeved in the outer walls of the two annular grooves, a No. 2 baffle is fixedly arranged on the outer walls of the two collars, the No. 2 baffle is sealed and rotatably connected to the outer wall of the rotating shaft, and a spoiler unit 2 having the same structure and function as the spoiler unit 1 is arranged on the outer wall of the No. 2 baffle close to the movable baffle unit; The spoiler unit 2 includes a transmission shaft 1 rotatably arranged on the outer wall of the second partition plate through a bracket, and a plurality of impellers 1 are evenly and fixedly sleeved on the outer wall of the transmission shaft 1 for stirring the coolant by utilizing the thrust of the coolant.

8. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 3, characterized in that: The coolant pumping assembly includes a box body fixedly arranged on the side wall of the electrolytic cell body, and a power conversion assembly 1, a power conversion assembly 2 and a pumping execution unit are arranged in sequence from top to bottom inside the box body. The power conversion assembly 1 and the power conversion assembly 2 respectively convert the kinetic energy of hydrogen and oxygen generated by electrolysis into energy for driving their own operation, and the pumping execution unit uses the power of the power conversion assembly 1 and the power conversion assembly 2 to drive itself to pump the coolant. The power conversion assembly 1, the power conversion assembly 2 and the pumping execution unit are commonly connected to a transmission shaft 2 for power transmission, and a hydrogen inlet pipe and an oxygen inlet pipe for introducing hydrogen and oxygen are respectively arranged on the outer walls of the power conversion assembly 1 and the power conversion assembly 2. The structures of the power conversion assembly 1, the power conversion assembly 2 and the pumping execution unit are the same.

9. The water electrolysis hydrogen production device with an electrolytic cell sealing structure according to claim 8, characterized in that: The power conversion component 1 includes a volute fixedly arranged on the inner wall of the casing through a mounting bracket, and a discharge pipe and a supply pipe connected to the interior of the volute are fixedly arranged on both sides of the outer wall of the volute, and an impeller 2 is also rotatably arranged inside the volute. The hydrogen and oxygen generated by electrolysis enter the respective interiors through the supply pipes in the power conversion component 1 and the power conversion component 2 respectively, so as to drive the impeller 2 in each interior to rotate. The transmission shaft 2 is fixedly connected to the power conversion component 1, the power conversion component 2, and the impeller 2 in the pumping execution unit at the same time. The supply pipe in the pumping execution unit is fixedly connected to the coolant storage tank through a metal conduit, and the discharge pipe in the pumping execution unit is connected to the connecting pipe 1 and the connecting pipe 2 in the cooling component No. 1 and the cooling component No. 2 respectively through the coolant conduit.

10. A method for producing hydrogen by water electrolysis with an electrolyzer sealing structure, characterized in that: For use in a water electrolysis hydrogen production device with an electrolyzer sealing structure as claimed in any one of claims 1 to 9, the method comprises the following steps: Step 1: The water purification mechanism purifies the clean water input from the outside to form high-purity water, and adds a certain amount of potassium hydroxide or other strong alkaline liquid in proportion to increase the conductivity of the water, and then inputs it into the electrolytic cell mechanism as an electrolyte for electrolytic hydrogen production; Step 2, controlling the electrolytic cell mechanism to perform electrolysis operation on the input electrolyte, and the hydrogen and oxygen generated by the electrolysis are output through the coolant pumping component and then stored in the gas storage mechanism; Step 3, the coolant pumping component uses the kinetic energy of the flow of hydrogen and oxygen to pump the coolant in the coolant storage tank to circulate, cools the electrolyte in the electrolytic cell body through cooling component No. 1 and cooling component No. 2, and at the same time adaptively adjusts the heat exchange area between cooling component No. 1 and cooling component No. 2 and the electrolyte according to the electrolysis rate.

Images