CN220224357U - Hydrogen production device - Google Patents

Abstract

The utility model belongs to the technical field of hydrogen production by water electrolysis, and particularly relates to a hydrogen production device. It comprises the following steps: a hydrogen production electrolytic tank; the hydrogen production electrolytic tank comprises an electrode assembly, the electrode assembly comprises an anode plate, an electrode film and a cathode plate which are sequentially stacked, the electrode film divides the hydrogen production electrolytic tank into an electrolytic tank water cavity and an electrolytic tank air cavity, the electrolytic tank water cavity is used for communicating with the water storage cavity, the anode plate is positioned in the water storage cavity near the electrolytic tank, and the cathode plate is positioned at one side of the electrolytic tank water cavity; the hydrogen production electrolytic tank is also provided with a hydrogen output end which is communicated with the electrolytic tank air cavity and outputs hydrogen outwards; the power supply base is detachably connected with the hydrogen production electrolytic tank and is provided with a power supply circuit board which is electrically connected with the hydrogen production electrolytic tank. The utility model has higher heat radiation capability and higher purity of the prepared hydrogen.

Description

Hydrogen production device

Technical Field

The utility model belongs to the technical field of hydrogen production by water electrolysis, and particularly relates to a hydrogen production device.

Background

The current hydrogen source is prepared by electrolyzing water through a hydrogen production device, for example, CN109536985A discloses an oxyhydrogen generating assembly and an oxyhydrogen generator. The oxyhydrogen generator comprises a shell and a water tank arranged in the shell, wherein a hydrogen outlet is formed in the shell, the oxyhydrogen generator further comprises an oxyhydrogen generating assembly, the oxyhydrogen generating assembly comprises a first electrode plate, an ion exchange membrane and a second electrode plate, a water tank for water supply flow is formed in the inner surface of the first electrode plate, a water cavity is formed between the water tank and the ion exchange membrane, a water inlet hole and a water return hole which are communicated with the water tank are formed in the first electrode plate, and an air outlet through hole is formed in the second electrode plate; the oxyhydrogen generating assembly further comprises a first guard plate and a second guard plate, the first electrode plate, the ion exchange membrane and the second electrode plate are sequentially arranged between the first guard plate and the second guard plate, a water inlet pipe communicated with the water inlet hole and a water return pipe communicated with the water return hole are arranged on the first guard plate, and an air outlet pipe communicated with the air outlet through hole is arranged on the second guard plate; the water inlet pipe and the water return pipe are respectively connected with the water tank, the air outlet pipe is communicated with the hydrogen outlet, and the oxyhydrogen generating component is longitudinally arranged in the shell.

The prior art has the following defects:

1. the heat dissipation capability is poor. Since water itself has a large specific heat capacity, it is a preferred medium for transferring heat and absorbing heat. In the prior art, a water cavity in the electrolytic tank is communicated with a water storage cavity in the water tank by adopting a water inlet pipe. Because the volume of the water cavity in the electrolytic tank is smaller and is limited by the pipe diameter and the fluidity of the water inlet pipe, when the electrode plate in the electrolytic tank is used for electrolyzing water, the electrode plate is difficult to transfer working heat into the water in the water tank, so that the heat dissipation capacity of the whole electrolytic tank is poor.

2. The hydrogen produced is impure. The hydrogen just prepared is mixed with water vapor, and a gas-water separator bin provided with the gas-water separator are also needed when the just prepared hydrogen is required to be dried, so that the structure of the hydrogen production device becomes more complex and the volume is larger.

Disclosure of Invention

Aiming at the defects of poor heat radiation capability, impure hydrogen prepared and the like in the prior art, the utility model provides a hydrogen production device.

The present utility model provides a hydrogen production apparatus comprising:

a hydrogen production electrolytic tank; the hydrogen production electrolytic tank comprises an electrode assembly, wherein the electrode assembly comprises an anode plate, an electrode film and a cathode plate which are sequentially stacked, the electrode film divides the hydrogen production electrolytic tank into an electrolytic tank water cavity and an electrolytic tank air cavity, the electrolytic tank water cavity is used for communicating with a water storage cavity, the anode plate is positioned in the electrolytic tank water cavity, and the cathode plate is positioned at one side of the electrolytic tank water cavity; the hydrogen production electrolytic tank is also provided with a hydrogen output end which is communicated with the electrolytic tank air cavity and outputs hydrogen outwards;

the power supply base is detachably connected with the hydrogen production electrolytic tank and is provided with a power supply circuit board which is electrically connected with the hydrogen production electrolytic tank;

the water tank connecting end is arranged on the hydrogen production electrolytic tank and/or the power supply base and is used for being detachably connected with the water tank.

The hydrogen production device provided by the utility model has at least the following advantages:

1. the heat dissipation capacity is high. Since water itself has a large specific heat capacity, it is a preferred medium for transferring heat and absorbing heat. The water cavity of the electrolytic tank is directly communicated with the water storage cavity of the water tank, and the anode polar plate is completely soaked in water in the water cavity of the electrolytic tank and water in the water storage cavity during electrolysis, so that the problem that the volume of the water cavity in the electrolytic tank is small and the water cavity is limited by the pipe diameter and the flowability of the water inlet pipe is avoided. When the electrode plate in the electrolytic tank is used for electrolyzing water, the electrode plate is easy to transfer working heat into water in the water tank, so that the heat dissipation capacity of the whole electrolytic tank is good.

2. The purity of the prepared hydrogen is high. The electrode film synthesizes the transferred hydrogen ions into hydrogen at the cathode plate, water molecules are prevented from passing through, the hydrogen just prepared in sequence is not mixed with water vapor, and a prepared hydrogen product does not need a drying bin, so that the hydrogen production device has a simple structure and a smaller volume.

Preferably, the membrane electrode comprises an anode diffusion layer, a proton exchange membrane and a cathode diffusion layer which are arranged from top to bottom, wherein the anode diffusion layer, the proton exchange membrane and the cathode diffusion layer are laminated; the anode plate and the cathode plate are respectively positioned above the anode diffusion layer and below the cathode diffusion layer, and the membrane electrode is also provided with an electric connection end which is respectively electrically connected with the anode plate and the cathode plate.

Preferably, the hydrogen production electrolytic tank is further provided with a tank body mounting bracket, the tank body mounting bracket is provided with first internal threads, and the tank body mounting bracket and the water tank are detachably mounted through the first internal threads, so that the hydrogen production electrolytic tank is mounted on the water tank.

Preferably, a second upward ventilation pipe is arranged at one end of the tank body mounting bracket, which is positioned at the water cavity of the electrolytic tank, and a base plug-in column is arranged at the lower end of the tank body mounting bracket; one end of the power supply base, which is close to the groove body installing support, is provided with a base plug hole matched with the base plug post.

Preferably, the hydrogen production electrolytic tank further comprises an upper tank body and a lower tank body which are respectively arranged at the upper end and the lower end of the membrane electrode, a through part is arranged in the middle of the upper tank body, the through part penetrates through the upper surface and the lower surface of the upper tank body, a liquid passing grid is further arranged on the inner wall of the through part, and an upward protruding cambered surface is formed on the lower surface of the liquid passing grid; the membrane electrode cover is sealed at the bottom of the through part and forms an electrolytic tank water cavity with the through part, and the electrode assembly is matched with the cambered surface; the middle part of the upper tank body is provided with an upward groove, and the cathode polar plate is covered at the upper end of the groove and is matched with the groove to form an air cavity of the electrolytic tank.

Preferably, the hydrogen production electrolytic tank further comprises a supporting ring, an upper tank body, a lower tank body and a tank body mounting bracket; the groove body mounting bracket is provided with a first internal thread and is detachably mounted with the water tank through the first internal thread, and the lower end of the groove body mounting bracket is provided with a base plug-in column and is connected with the power supply base in a plug-in manner through the base plug-in column; the membrane electrode is arranged between the upper tank body and the lower tank body and is mounted on the lower surface of the upper tank body; the lower end of the upper groove body and the lower groove body are respectively provided with a groove body inserting hole and a groove body inserting column, and are connected with the groove body inserting column in an inserting and pulling way through the groove body inserting holes; the upper end of the upper groove body penetrates through the groove body mounting bracket and is provided with a second external thread, the supporting ring is positioned above the groove body mounting bracket, the inner wall of the supporting ring is provided with a second internal thread matched with the second external thread, and the upper groove body is fixed on the groove body mounting bracket through the matching of the second external thread and the second internal thread.

Preferably, the power supply base is further provided with a base mounting cavity and a base opening communicated with the base mounting cavity, the base opening is approximately circular, and an anti-rotation clamping groove is formed in the base opening along the circumferential direction; the hydrogen production electrolytic tank is provided with a tank body mounting bracket, the lower end of the tank body mounting bracket is in a circular truncated cone shape and is matched with the opening of the base, the upper end of the tank body mounting bracket is provided with a bracket supporting bulge, the bracket supporting bulge protrudes outwards compared with the outer side wall of the lower end of the tank body mounting bracket, and the bottom of the bracket supporting bulge is also provided with a plurality of downward extending anti-rotation clamping blocks; when the lower end of the groove body installing support is inserted into the opening of the base, the anti-rotation clamping block is matched with the anti-rotation clamping groove.

Preferably, the bottom wall of the base mounting cavity is provided with an upward base plug hole, the lower end of the mounting bracket is provided with a downward extending base plug column, and the lower end of the base plug column can be plugged in the base plug hole and fix the hydrogen production electrolytic tank in the power supply base.

Preferably, the power supply base is further provided with a base mounting cavity and a base opening communicated with the base mounting cavity, the power supply circuit board is mounted in the base mounting cavity, the two ends of the power supply circuit board are respectively provided with a control board and a USB connecting end, and the control board and the USB connecting end are exposed compared with the base mounting cavity.

Drawings

The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular description of preferred embodiments of the utility model, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the utility model.

FIG. 1 is a schematic diagram of a portable hydrogen production machine according to an embodiment;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of the water tank, hydrogen production electrolyzer and power base mated together;

fig. 4 is a schematic structural view of a water tank according to an embodiment;

FIG. 5 is a partial enlargement of FIG. 1;

fig. 6 is a schematic structural diagram of a power supply base according to an embodiment;

FIG. 7 is a schematic view of a hydrogen production electrolyzer provided in an embodiment;

FIG. 8 is a schematic diagram of a combination of hydrogen production cells provided in an embodiment;

fig. 9 is a schematic structural view of an electrode assembly according to an embodiment.

The attached drawings are identified: the water tank 1, the water storage cavity 11, the sealing cover 12, the water filling port 121, the limit supporting step 122, the air pipe mounting port 13, the air pipe supporting step 131, the fastening hole 132, the second air pipe 14, the air pipe mounting fixing frame 141, the back-off 142 and the first external thread 15;

the hydrogen production electrolytic tank 2, the support ring 21, the second internal screw thread 211, the tank body mounting bracket 22, the first internal screw thread 221, the first vent pipe 222, the base plug column 223, the bracket supporting protrusion 224, the anti-rotation clamping block 225, the upper tank body 23, the tank body plug column 231, the electrolytic tank water cavity 232, the second external screw thread 233, the liquid passing grid 234, the electrode assembly 24, the anode plate 24a, the cathode plate 24b, the electrode film 24c, the anode catalytic layer 241, the hydrogen oxidation layer 242, the proton exchange membrane 242, the cathode catalytic layer 244, the electric connection end 245, the lower tank body 25, the electrolytic tank air cavity 251, the tank body plug hole 252 and the hydrogen output end 253;

the power supply base 3, the power supply circuit board 31, the USB connection end 311, the control board 312, the base plug hole 32, the base mounting cavity 33, the base opening 331 and the anti-rotation clamping groove 332;

a first sealing ring a, a second sealing ring b, a third sealing ring c and a fourth sealing ring d.

Detailed Description

In order that the utility model may be understood more fully, the utility model will be described with reference to the accompanying drawings.

First embodiment:

referring to fig. 1-9, a first embodiment of the present utility model provides a hydrogen production electrolytic tank 2, the hydrogen production electrolytic tank 2 includes an electrode assembly 24, the electrode assembly 24 includes a porous anode plate 24a, an electrode film 24c and a porous cathode plate 24b which are sequentially stacked, the electrode film 24c divides the hydrogen production electrolytic tank 2 into an electrolytic tank water cavity 232 and an electrolytic tank air cavity 251, the electrolytic tank water cavity 232 is used for communicating with the water storage cavity 11, the anode plate 24a is located in the electrolytic tank water cavity 232, and the cathode plate 24b is located at one side of the electrolytic tank water cavity 232; the hydrogen production electrolytic tank 2 is also provided with a hydrogen output end 253, the hydrogen output end 253 is communicated with the electrolytic tank air cavity 251, the electrolytic tank air cavity 251 can collect hydrogen, and the hydrogen output end 253 outputs hydrogen to the outside. When in use, water enters the water cavity 232 of the electrolytic cell, the water generates electrolytic reaction at the anode plate 24a to generate hydrogen ions and oxygen ions, the oxygen ions are combined to generate oxygen, the oxygen is dissolved in the water cavity 232 of the electrolytic cell or released into the water storage cavity 11 of the water tank 1 by the water cavity 232 of the electrolytic cell, the electrode film 24c only allows hydrogen ions to pass through, the generated hydrogen ions pass through the electrode film 24c and then are combined to generate hydrogen at one side of the cathode plate 24b, and the hydrogen is collected in the hydrogen production electrolytic cell 2 and is output outwards by the hydrogen output end 253. Wherein the anode plate 24a and the cathode plate 24b are porous titanium plates.

Referring to fig. 9, in a further preferred embodiment, the membrane electrode includes an anode diffusion layer, a proton exchange membrane 242 and a cathode diffusion layer arranged from top to bottom, and the anode diffusion layer, the proton exchange membrane 242 and the cathode diffusion layer are arranged in a stacked manner; the anode plate 24a and the cathode plate 24b are respectively positioned above the anode diffusion layer and below the cathode diffusion layer, and an electric connection end is also arranged on the membrane electrode and is respectively electrically connected with the anode plate 24a and the cathode plate 24 b. The electrical connection terminal is electrically connected to the power supply circuit board 31. Oxygen ions generated by electrolysis are transmitted to an anode diffusion layer and then are catalyzed to produce oxygen, hydrogen ions are transmitted to a cathode diffusion layer and a cathode polar plate 24b through a proton exchange membrane 242 and then are catalyzed to produce hydrogen, and the electrode membrane 24c can be specifically referred to CN218175126U (an electrolytic water hydrogen production device and a hydrogen production device stack formed by the electrolytic water hydrogen production device) or other electrode membranes 24c for electrolytically preparing hydrogen in the prior art. The anode plate 24a, the cathode plate 24b and the electrode film 24c, and the electrode film 24c may be provided with titanium alloy mesh, foamed titanium, insulating spacers, etc. as required, so as to satisfy the requirements of supporting strength, catalytic reaction and conductivity of the electrode assembly 24, and the electrode film 24c, titanium alloy mesh, foamed titanium and insulating spacers are not within the scope of the present utility model, and reference may be made to the prior art.

Referring to fig. 7-9, in a further preferred embodiment, the hydrogen production electrolytic tank 2 further includes an upper tank body 23 and a lower tank body 25 respectively disposed at the upper and lower ends of the membrane electrode, a through portion is disposed in the middle of the upper tank body 23, the through portion penetrates through the upper and lower surfaces of the upper tank body 23, a liquid passing grid is further disposed on the inner wall of the through portion, and an upwardly protruding arc surface is formed on the lower surface of the liquid passing grid. Since the pressure of hydrogen generated by the cathode is higher than the pressure of oxygen generated by the anode, the electrode assembly 24 can slightly arch upwards, and the convex cambered surface enables the electrode assembly 24 to better expand upwards in the electrolysis process, so that the electrolysis of the electrode assembly 24 in the electrolysis process is not affected by the pressure difference. The membrane electrode is covered and sealed at the bottom of the through part and forms an electrolytic tank water cavity 232 with the through part, and the electrode assembly 24 is matched with the cambered surface; the middle part of the upper tank body 23 is provided with an upward groove, and the cathode plate 24b covers the upper end of the groove and is matched with the groove to form an electrolytic tank air cavity 251.

Referring to fig. 8-9, in a further preferred embodiment, a slot body insertion hole 252 and a slot body insertion post 231 are respectively provided at one end of the lower slot body 25 and the upper slot body 23 close to each other, and the slot body insertion hole 252 and the slot body insertion post 231 are matched with each other.

Referring to fig. 8-9, in a further preferred embodiment, hydrogen production electrolyzer 2 further comprises support ring 21, upper tank 23, lower tank 25, and tank mounting bracket 22; the membrane electrode is arranged between the upper groove body 23 and the lower groove body 25 and is mounted on the lower surface of the upper groove body 23; the lower end of the upper groove body 23 and the lower groove body 25 are respectively provided with a groove body inserting hole 252 and a groove body inserting column 231, and are connected with the groove body inserting column 231 in an inserting way through the groove body inserting hole 252; the upper end of the upper groove 23 penetrates through the groove mounting bracket 22 and is provided with a second external thread 233, the supporting ring 21 is positioned above the groove mounting bracket 22, the inner wall of the supporting ring is provided with a second internal thread 211 matched with the second external thread 233, and the upper groove 23 is fixed on the groove mounting bracket 22 through the matching of the second external thread 233 and the second internal thread 211.

Referring to fig. 2, in a further preferred embodiment, a third seal is further provided between the support ring 21 and the tank mounting bracket 22, the upper and lower surfaces of the third seal respectively abut against the lower surface of the support ring 21 and the upper surface of the tank mounting bracket 22, and the third seal ring c is wound around the upper end of the upper tank 23.

Second embodiment:

referring to fig. 1-9, a second embodiment of the present utility model provides a hydrogen production apparatus, which includes a hydrogen production electrolytic tank 2, a power supply base 3 and a water tank 1. The hydrogen production electrolytic tank 2 comprises an electrode assembly 24, the electrode assembly 24 comprises an anode plate 24a, an electrode film 24c and a cathode plate 24b which are sequentially stacked, the electrode film 24c divides the hydrogen production electrolytic tank 2 into an electrolytic tank water cavity 232 and an electrolytic tank air cavity 251, the electrolytic tank water cavity 232 is used for communicating the water storage cavity 11, the anode plate 24a is positioned in the electrolytic tank water cavity 232, and the cathode plate 24b is positioned at one side of the electrolytic tank water cavity 232; the hydrogen production electrolytic tank 2 is also provided with a hydrogen output end 253, the hydrogen output end 253 is communicated with the electrolytic tank air cavity 251, and the hydrogen output end 253 outputs hydrogen to the outside; the hydrogen producing portion of the hydrogen producing electrolytic tank 2 may be referred to the previous embodiment, and will not be described in detail herein. The power supply base 3 is detachably connected with the hydrogen production electrolytic tank 2 so that the power supply base 3 and the hydrogen production electrolytic tank 2 are disassembled and maintained, the power supply base 3 is provided with a power supply circuit board 31, and the power supply circuit board 31 is electrically connected with the hydrogen production electrolytic tank 2. The connecting end of the water tank 1 is arranged on the hydrogen production electrolytic tank 2 and/or the power supply base 3 and is used for being detachably connected with the water tank 1. The water tank 1 connecting end of the hydrogen production device can be connected with water tanks 1 with different sizes according to requirements.

Referring to fig. 1-3 and fig. 6, in a further preferred embodiment, the power supply base 3 is further provided with a base mounting cavity and a base opening communicated with the base mounting cavity, the base opening is substantially circular, and the base opening is provided with an anti-rotation clamping groove along the circumferential direction; the hydrogen production electrolytic tank 2 is provided with a tank body mounting bracket 22, the lower end of the tank body mounting bracket 22 is in a round table shape and is matched with the opening of the base, the upper end of the tank body mounting bracket 22 is provided with a bracket supporting protrusion 224, the bracket supporting protrusion 224 protrudes outwards compared with the outer side wall of the lower end of the tank body mounting bracket 22, and the bottom of the bracket supporting protrusion 224 is also provided with a plurality of rotation preventing clamping blocks 225 which extend downwards; when the lower end of the tank body mounting bracket 22 is inserted into the opening of the base, the anti-rotation clamping block 225 is matched with the anti-rotation clamping groove, so that the hydrogen production electrolytic tank 2 can be quickly and conveniently mounted on the power supply base 3.

Referring to fig. 1-3 and 6, in a further preferred embodiment, the bottom wall of the base mounting cavity is provided with an upward base insertion hole 32, the lower end of the mounting bracket is provided with a downward extending base insertion post 223, and the lower end of the base insertion post 223 can be inserted into the base insertion hole 32 and fix the hydrogen production electrolytic tank 2 in the power supply base 3.

Referring to fig. 1-3 and fig. 6, the power supply base 3 is further provided with a base mounting cavity and a base opening communicating with the base mounting cavity, the power supply circuit board 31 is mounted in the base mounting cavity, and two ends of the power supply circuit board 31 are respectively provided with a control board 312 and a USB connection terminal 311, wherein the control board 312 and the USB connection terminal 311 are exposed compared with the base mounting cavity. The control panel 312 is provided with control buttons and a control display screen, which are exposed compared with the base mounting cavity, generally through the exposed through holes, and are convenient to operate. The USB connection terminal 311 is connected to an external power source for directly electrolyzing water or charging a storage battery.

Third embodiment:

referring to fig. 1-9, a second embodiment of the present utility model provides a portable hydrogen production machine; the portable hydrogen production electrolyzer comprises a three-section detachable water tank 1, a hydrogen production electrolyzer 2 and a power supply base 3, so as to achieve the purpose of portability. Specifically: the water tank 1 is provided with a water storage chamber 11. The hydrogen production electrolytic tank 2 is detachably arranged with the water tank 1; the hydrogen production electrolytic tank 2 comprises an electrode assembly 24, the electrode assembly 24 comprises a porous anode plate 24a, an electrode film 24c and a porous cathode plate 24b which are sequentially stacked, the electrode film 24c divides the hydrogen production electrolytic tank 2 into an electrolytic tank water cavity 232 and an electrolytic tank air cavity 251, the electrolytic tank water cavity 232 is communicated with the water storage cavity 11, the anode plate 24a is positioned in the electrolytic tank water cavity 232, and the cathode plate 24b is positioned at one side of the electrolytic tank water cavity 232; the hydrogen production electrolytic tank 2 is also provided with a hydrogen output end 253, the hydrogen output end 253 is communicated with the electrolytic tank air cavity 251, and the hydrogen output end 253 outputs hydrogen to the outside. The power supply base 3 is detachably connected with the hydrogen production electrolytic tank 2, the power supply base 3 is provided with a power supply circuit board 31, and the power supply circuit board 31 is electrically connected with the hydrogen production electrolytic tank 2.

Referring to fig. 2, in a further preferred embodiment, the water tank 1 and the hydrogen producing electrolytic tank 2 are provided with a first external thread 15 and a first internal thread 221, respectively, the water tank 1 and the hydrogen producing electrolytic tank 2 are detachably mounted through the first external thread 15 and the first internal thread 221, and the two are mounted with a first sealing ring a.

Referring to fig. 4, in a further preferred embodiment, a water filling port 121 is provided at the upper end of the water tank 1, the water filling port 121 is in communication with the water storage cavity 11, a sealing cover 12 matched with the water filling port 121 is further provided on the water filling port 121, and a second sealing ring b is provided between the sealing cover 12 and the peripheral wall of the water filling port 121. So as to ensure that the water tank 1 is convenient to add water and ensure that the water tank 1 is airtight with the outside. Further, the inner peripheral wall of the water filling port 121 is provided with a limit supporting step 122 for supporting the sealing cover 12 and a second sealing ring b, the second sealing ring b is placed on the limit supporting step 122, and the limit supporting step 122 is respectively abutted with the upper surface of the sealing cover 12 and the lower surface of the second sealing ring b.

Referring to fig. 2 and 5, in a further preferred embodiment, the water tank 1 is provided with a second vent pipe 14, the second vent pipe 14 is located in the water storage cavity 11, the whole device is reduced, the appearance is attractive, the input end of the second vent pipe 14 is communicated with the hydrogen output end 253, the second vent pipe 14 penetrates through the water storage cavity 11 near the output end, and the output end of the second vent pipe 14 outputs hydrogen.

Referring to fig. 1 to 5, in a further preferred embodiment, the upper end of the water tank 1 is provided with a gas pipe mounting opening 13, the upper end of the second gas pipe 14 is provided with a gas pipe mounting fixing frame 141, the gas pipe mounting fixing frame 141 is located above the gas pipe mounting opening 13 and detachably mounted on the gas pipe mounting opening 13, and the lower end of the second gas pipe 14 can extend into the water storage cavity 11 from the gas pipe mounting opening 13. The upper end of the hydrogen production electrolytic tank 2 is further provided with a first ventilation pipe 222, the input end of the first ventilation pipe 222 is communicated with the hydrogen output end 253, and generally, the input end of the first ventilation pipe 222 is communicated with the hydrogen output end 253 through a connecting pipe (not shown in the figure), and the output end of the first ventilation pipe 222 is communicated with the input end of the second ventilation pipe 14. The water tank 1 is approximately cylindrical, the outer wall of the water tank 1 and the inner wall of the hydrogen production electrolytic tank 2 are respectively provided with a first external thread 15 and a first internal thread 221, further the tank body mounting support 22 is provided with a first internal thread 221, the tank body mounting support 22 and the water tank 1 are detachably mounted through the first internal thread 221, the water tank 1 is rotatably mounted on the hydrogen production electrolytic tank 2 through the matching of the first external thread 15 and the first internal thread 221, and the distance between the first ventilation pipe 222 and the second ventilation pipe 14 and the rotation axis is the same, so that after the water tank 1 is mounted on the hydrogen production electrolytic tank 2, the air pipe mounting opening 13 is aligned with the second ventilation pipe 14, and the second ventilation pipe 14 can be inserted through the air pipe mounting opening 13 and the input end of the lower end of the second ventilation pipe 14 is mounted on the output end of the upper end of the first ventilation pipe 222. Further, the total length of the second ventilation pipe 14 and the first ventilation pipe 222 in the vertical direction in the water storage cavity 11 is greater than the total length of the water storage cavity 11 in the vertical direction, the output end of the first ventilation is an output port, the input end of the second ventilation pipe 14 is an input port, and the radius of the second ventilation pipe is greater than that of the first ventilation output port, so that the input port of the second ventilation pipe 14 is sleeved outside the output end of the first ventilation. The whole equipment is convenient to install through the arrangement.

Referring to fig. 4 and 5, in a further preferred embodiment, an air pipe mounting opening 13 is provided at the upper end of the water tank 1, an air pipe supporting step 131 extending along the radial axis is provided on the inner wall of the air pipe mounting opening 13, a fastening hole 132 is further provided on the air pipe supporting step 131, a second air vent pipe 14 is provided on the water tank 1, an air pipe mounting fixing frame 141 is provided at the upper end of the second air vent pipe 14, the air pipe mounting fixing frame 141 can be covered on the air pipe mounting opening 13 and abutted against the upper surface of the air pipe supporting step 131, an inverted buckle 142 matched with the fastening hole is further provided on the air pipe mounting fixing frame 141, and when the input end of the lower end of the second air vent pipe 14 is mounted on the second air vent pipe 14, the fastening hole and the inverted buckle 142 fix the mounting fixing frame on the air pipe supporting step 131, so as to realize the mounting and fixing of the second air vent pipe 14.

Referring to fig. 4 and 5, in a further preferred embodiment, a fourth sealing ring d is further disposed between the tracheal mounting fixture 141 and the tracheal support step, and the fastening hole 132 is located in the fourth sealing ring d. When the clamping hole and the back-off 142 fix the mounting fixing frame on the air pipe supporting step 131, after the second air pipe 14 is mounted and fixed, the fourth sealing ring d can realize the air tightness between the air pipe mounting opening 13 and the outside.

Referring to fig. 2, 3 and 6, in a further preferred embodiment, the tank mounting bracket 22 is provided with a first internal thread 221 and is detachably mounted with the water tank 1 through the first internal thread 221, and the lower end of the tank mounting bracket 22 is provided with a base plug post 223 and is connected with the power supply base 3 in a plug-in manner through the base plug post 223. In the embodiment, the first internal thread 221 and the first internal thread 221 are used for connecting and disconnecting, so that the whole assembly efficiency is improved. Further, the hydrogen production electrolytic tank 2 is further provided with a tank body mounting bracket 22, the tank body mounting bracket 22 is provided with a first internal thread 221, and the tank body mounting bracket 22 and the water tank 1 are detachably mounted through the first internal thread 221 to mount the hydrogen production electrolytic tank 2 on the water tank 1.

Referring to fig. 2, 3 and 6, an upward second ventilation pipe 14 is arranged at one end of the tank body mounting bracket 22 located at the water storage cavity 11, and a base plug-in column 223 is arranged at the lower end of the tank body mounting bracket 22; the power supply base 3 is provided with a base plug hole 32 which is matched with the base plug post 223 near one end of the groove body mounting bracket 22.

The utility model has at least the following advantages:

1. the prepared hydrogen is dry, and the hydrogen production equipment does not need to be provided with a gas-water separator and is provided with the gas-water separator to dry the hydrogen, so that the structure of the hydrogen production device is simpler and the volume is smaller.

2. The water storage cavity 11 of the water tank 1 is the water cavity 232 of the electrolytic tank, no additional shell is needed, and the hydrogen production device is simpler in installation and simpler in overall size.

3. The upper tank body 23 is internally provided with the liquid passing grid 234, the liquid passing grid 234 can be communicated with the inside of the water cavity 232 of the electrolytic tank, so that the anode plate 24a can be contacted with water through the liquid passing grid 234, the anode plate 24a can be directly soaked in the water, the electrolytic tank and the water tank 1 can be integrated into a whole, the space can be saved, and the heat dissipation effect can be achieved.

4. A waterproof sealing ring is arranged in the hydrogen production electrolytic tank 2 and between the hydrogen production electrolytic tank 2 and the water tank 1; the sealing ring for preventing air leakage and water leakage is arranged at the top of the water tank 1, so that normal use is ensured, and water leakage is avoided.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to the terms "preferred embodiment," "further embodiment," "other embodiments," or "specific examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (9)

1. A hydrogen production apparatus, characterized in that the hydrogen production apparatus comprises:

a hydrogen production electrolytic tank; the hydrogen production electrolytic tank comprises an electrode assembly, wherein the electrode assembly comprises an anode plate, an electrode film and a cathode plate which are sequentially stacked, the electrode film divides the hydrogen production electrolytic tank into an electrolytic tank water cavity and an electrolytic tank air cavity, the electrolytic tank water cavity is used for communicating with a water storage cavity, the anode plate is positioned in the electrolytic tank water cavity, and the cathode plate is positioned at one side of the electrolytic tank water cavity; the hydrogen production electrolytic tank is also provided with a hydrogen output end which is communicated with the electrolytic tank air cavity and outputs hydrogen outwards;

the power supply base is detachably connected with the hydrogen production electrolytic tank and is provided with a power supply circuit board which is electrically connected with the hydrogen production electrolytic tank;

the water tank connecting end is arranged on the hydrogen production electrolytic tank and/or the power supply base and is used for being detachably connected with the water tank.

2. The hydrogen plant of claim 1, wherein the membrane electrode comprises an anode diffusion layer, a proton exchange membrane and a cathode diffusion layer arranged from top to bottom, the anode diffusion layer, the proton exchange membrane and the cathode diffusion layer being arranged in a stack; the anode plate and the cathode plate are respectively positioned above the anode diffusion layer and below the cathode diffusion layer, and the membrane electrode is also provided with an electric connection end which is respectively electrically connected with the anode plate and the cathode plate.

3. The hydrogen plant of claim 1 wherein the hydrogen plant cell is further provided with a cell mounting bracket, the cell mounting bracket being provided with a first internal thread, the cell mounting bracket being removably mounted to the water tank by the first internal thread, the hydrogen plant cell being mounted to the water tank.

4. The hydrogen plant of claim 3, wherein a second upward vent pipe is arranged at one end of the tank body mounting bracket positioned at the water cavity of the electrolytic tank, and a base plug-in column is arranged at the lower end of the tank body mounting bracket; one end of the power supply base, which is close to the groove body installing support, is provided with a base plug hole matched with the base plug post.

5. The hydrogen production device as claimed in claim 1, wherein the hydrogen production electrolytic tank further comprises an upper tank body and a lower tank body which are respectively arranged at the upper end and the lower end of the membrane electrode, a through part is arranged in the middle of the upper tank body, the through part penetrates through the upper surface and the lower surface of the upper tank body, a liquid passing grid is further arranged on the inner wall of the through part, and the lower surface of the liquid passing grid forms an upward protruding cambered surface; the membrane electrode cover is sealed at the bottom of the through part and forms an electrolytic tank water cavity with the through part, and the electrode assembly is matched with the cambered surface; the middle part of the upper tank body is provided with an upward groove, and the cathode polar plate is covered at the upper end of the groove and is matched with the groove to form an air cavity of the electrolytic tank.

6. The hydrogen plant of claim 1 wherein the hydrogen electrolyzer further comprises a support ring, an upper tank, a lower tank, and a tank mounting bracket; the groove body mounting bracket is provided with a first internal thread and is detachably mounted with the water tank through the first internal thread, and the lower end of the groove body mounting bracket is provided with a base plug-in column and is connected with the power supply base in a plug-in manner through the base plug-in column; the membrane electrode is arranged between the upper tank body and the lower tank body and is mounted on the lower surface of the upper tank body; the lower end of the upper groove body and the lower groove body are respectively provided with a groove body inserting hole and a groove body inserting column, and are connected with the groove body inserting column in an inserting and pulling way through the groove body inserting holes; the upper end of the upper groove body penetrates through the groove body mounting bracket and is provided with a second external thread, the supporting ring is positioned above the groove body mounting bracket, the inner wall of the supporting ring is provided with a second internal thread matched with the second external thread, and the upper groove body is fixed on the groove body mounting bracket through the matching of the second external thread and the second internal thread.

7. The hydrogen plant of claim 1, wherein the power supply base is further provided with a base mounting cavity and a base opening in communication with the base mounting cavity, the base opening being generally circular, the base opening being provided with anti-rotation slots along a circumferential direction; the hydrogen production electrolytic tank is provided with a tank body mounting bracket, the lower end of the tank body mounting bracket is in a circular truncated cone shape and is matched with the opening of the base, the upper end of the tank body mounting bracket is provided with a bracket supporting bulge, the bracket supporting bulge protrudes outwards compared with the outer side wall of the lower end of the tank body mounting bracket, and the bottom of the bracket supporting bulge is also provided with a plurality of downward extending anti-rotation clamping blocks; when the lower end of the groove body installing support is inserted into the opening of the base, the anti-rotation clamping block is matched with the anti-rotation clamping groove.

8. The hydrogen plant of claim 7 wherein the base mounting cavity bottom wall is provided with an upwardly facing base plug aperture, the lower end of the tank mounting bracket is provided with a downwardly extending base plug post, the lower end of the base plug post is insertable into the base plug aperture and secures the hydrogen production electrolyzer in the power supply base.

9. The hydrogen production apparatus of claim 7, wherein the power supply base is further provided with a base mounting cavity and a base opening in communication with the base mounting cavity, the power supply circuit board is mounted in the base mounting cavity, and both ends of the power supply circuit board are further provided with a control board and a USB connection end, respectively, which are exposed as compared to the base mounting cavity.