Wind-solar hydrogen production integrated device

Abstract

The invention provides a wind and light hydrogen production integrated device which comprises hydrogen production equipment, a hydrogen storage tank and a connecting pipeline, the hydrogen production equipment and the hydrogen storage tank are communicated through the connecting pipeline, the hydrogen storage tank is provided with a monitoring meter and a self-pressure-relief mechanism, during working, the monitoring meter is used for monitoring the pressure in the hydrogen storage tank in real time, and the self-pressure-relief mechanism is used for automatically relieving the pressure in the hydrogen storage tank. The self-pressure-relief mechanism is used for carrying out self-pressure-relief operation when the pressure in the hydrogen storage tank exceeds a preset threshold value, so that the pressure in the hydrogen storage tank is lower than the preset threshold value; the structure of an existing wind and light hydrogen production integrated device is improved, the self-pressure-relief mechanism is additionally arranged on the hydrogen storage tank of the improved wind and light hydrogen production integrated device, and due to the arrangement of the self-pressure-relief mechanism, when the pressure in the hydrogen storage tank exceeds a preset threshold value, self-pressure-relief can be conducted in the hydrogen storage tank; therefore, the pressure in the hydrogen storage tank does not exceed the preset threshold value all the time, and the effect of safe production is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy hydrogen production, and in particular to a wind-solar integrated hydrogen production device. Background Art

[0002] my country is actively developing a hydrogen energy development strategy, gradually improving the hydrogen energy policy system, implementing a hydrogen energy industry incubation and acceleration plan, and planning to develop a number of hydrogen energy industries. Hydrogen energy will become an important part of the carbon-neutral energy system, organically linking gas, electricity, heat and other networks to build a clean, low-carbon, safe and efficient energy system.

[0003] Based on the production source and carbon emissions during the preparation process, hydrogen energy is currently mainly divided into three types: green hydrogen, blue hydrogen and grey hydrogen. Green hydrogen refers to the use of electricity converted from renewable energy to electrolyze water to produce hydrogen. The widespread use of green hydrogen is to optimize the energy structure and promote the transformation and upgrading of the energy system.

[0004] "Explore the development model of energy storage that integrates source, grid, load and storage, and multiple energy complementarity, such as wind-solar hydrogen storage and wind-solar thermal storage." Many places have successively carried out the construction of wind-solar hydrogen storage demonstration projects. In the early stage of industrial development, the corresponding market supporting facilities are also gradually being promoted and improved. How to reasonably price hydrogen and evaluate project benefits has become one of the important links in project investment and construction.

[0005] The essence of LCOH (Levelised cost of hydrogen) is to allocate the costs of hydrogen production, storage, transportation and other links to the use of hydrogen, so as to obtain the average cost of producing one unit of hydrogen or the minimum hydrogen price required to cover the cost. This method needs to comprehensively consider factors such as the energy source, production technology, equipment cost, maintenance cost of hydrogen production, as well as factors such as the use and application scenarios of hydrogen. At present, some countries and companies have begun to try the application of levelized cost of hydrogen (LCOH). For example, the Japanese government has issued the "Hydrogen Energy Society Strategy" and established a hydrogen energy basic technology research program to reduce the total cost of hydrogen; the latest research report of the Wood Mackenzie Hydrogen Research Team, "Levelised Cost of Hydrogen-Europe", predicts the development prospects of green hydrogen, blue hydrogen, four types of electrolyzers, ATR and SMR processes and 14 markets through the levelized cost of hydrogen (LCOH) modeling.

[0006] As the global demand for renewable energy and environmentally friendly technologies continues to increase, green hydrogen is gaining more and more attention as a clean and efficient form of energy. Figure 1It is known that the latest research report released by Bloomberg New Energy Finance (BNEF), "2023 Hydrogen Levelized Cost Update", shows that due to inflation and rising financing costs, the levelized cost of hydrogen (LCOH) in 2023 will rise slightly, but it is expected that by 2030, in five markets including Brazil, China, Sweden, Spain and India, green hydrogen will be more competitive than gray hydrogen in terms of marginal production costs. Therefore, it is of great practical significance to establish a scientific cost accounting method for wind and solar hydrogen production and provide effective methods and tools for the formulation of hydrogen pricing and green hydrogen development policies. However, domestic green hydrogen projects are currently in the demonstration project stage. Scientifically calculating the cost of wind and solar hydrogen production is of great significance for hydrogen pricing and the formulation of green hydrogen development policies, which is conducive to promoting the healthy and orderly development of the green hydrogen industry.

[0007] Therefore, in the existing green hydrogen utilization technology, since the green hydrogen project is in its early stages and faces high production costs, when the production is completed and stored, the hydrogen tank equipment has a simple structure and does not have a pressure relief function. When the pressure in the hydrogen tank equipment is too high, it does not have a self-unloading function, resulting in certain safety hazards when the pressure is too high. In order to solve the above problems, the present invention proposes an integrated wind and solar hydrogen production device. Summary of the invention

[0008] To achieve the above-mentioned purpose, the present invention provides an integrated wind-solar hydrogen production device, including a hydrogen production equipment, a hydrogen storage tank and a connecting pipe. The hydrogen production equipment and the hydrogen storage tank are connected through a connecting pipe. The hydrogen storage tank is provided with a monitoring meter and a self-pressure relief mechanism. When working, the monitoring meter is used to monitor the pressure in the hydrogen storage tank in real time. The self-pressure relief mechanism is provided to perform a self-pressure relief operation when the pressure in the hydrogen storage tank exceeds a preset threshold value, so as to make the pressure in the hydrogen storage tank lower than the preset threshold value.

[0009] Optionally, the self-pressure relief mechanism includes a pressure relief pipe fixedly inserted on the hydrogen storage tank, a connecting rod assembly movably inserted in the pressure relief pipe, the upper end of the connecting rod assembly is fixedly connected to the lower end surface of the fixing cap, a plurality of first guide support assemblies are fixedly connected to the lower end surface of the fixing cap, the lower end of the first guide support assembly is fixedly connected to the outer wall of the pressure relief pipe, the lower end of the connecting rod assembly is fixedly connected to a blocking cap, the blocking cap is abutted and arranged in a blocking groove, the blocking groove is opened on the blocking pipe, the blocking tube is fixedly arranged on the inner wall of the pressure relief pipe, and a guide groove is opened on the lower end opening of the blocking tube.

[0010] Optionally, the first guide support assembly includes a first guide support rod, a first guide support tube and a first guide support spring, the first guide support rod is movably inserted in the first guide support tube, the first guide support spring is wound and arranged outside the first guide support rod, and the two ends of the first guide support spring are respectively fixedly connected to the side wall of the first guide support rod and the outer side wall of the first guide support tube.

[0011] Optionally, the connecting rod assembly includes a first connecting rod fixedly connected to a fixing cap, a plug-in slot is provided on the first connecting rod, a second connecting rod is movably plugged into the plug-in slot, a first connecting spring is wound around the outside of the second connecting rod, two ends of the first connecting spring are respectively fixedly connected to the side walls of the second connecting rod and the side walls of the first connecting rod, a third connecting rod is fixedly connected to the lower end of the second connecting rod, the third connecting rod is movably plugged into the first moving hole and the second moving hole, the first moving hole and the second moving hole are provided on the blocking cap, a moving plug is fixedly connected to the lower end of the third connecting rod, the moving plug is movably plugged into the second moving hole, a sealing ring is fixedly sleeved outside the moving plug, a plurality of second connecting springs are fixedly connected to the lower end surface of the first connecting rod, and the lower end of the second connecting spring is fixedly connected to the upper end surface of the blocking cap.

[0012] Optionally, it also includes a first limiting mechanism, which includes a supporting rod fixedly connected to the side wall of the connecting rod assembly, a first push-pull rod hinged on the lower end surface of the supporting rod, a rotating rod rotatably arranged on the lower end of the first push-pull rod, and the rotating rod is rotatably arranged on the edge of a rotating disk, a spiral hole is opened in the middle of the rotating disk, a spiral rod is threadedly inserted in the spiral hole, one end of the spiral rod is fixedly connected to the first limiting rod, the first limiting rod is movably inserted in a third movable hole, the third movable hole is opened on the pressure relief pipe, and a sealing plug is arranged in the third movable hole, and the sealing plug can be used for sealing between the first limiting rod and the third movable hole.

[0013] Optionally, the first limiting mechanism also includes a supporting assembly, the supporting assembly includes an annular groove formed on the rotating disk, a fourth movable hole formed on the annular groove, a plurality of supporting balls movably arranged in the annular groove, a fourth connecting rod fixedly connected to the side wall of the supporting ball, the fourth connecting rod movably arranged in the fourth movable hole, and an end of the fourth connecting rod away from the supporting ball is fixedly connected to the outer wall of the pressure relief pipe, wherein the opening size of the fourth movable hole in the vertical direction is smaller than the hole diameter of the annular groove.

[0014] Optionally, the first limiting mechanism also includes a fixed block fixedly connected to the side wall of the spiral rod, one end of the second guide support assembly is fixedly connected to the fixed block, the other end of the second guide support assembly is fixedly connected to the outer wall of the pressure relief pipe, the second guide support assembly includes a second guide support rod, a second guide support cylinder and a second guide support spring, the second guide support rod is movably inserted in the second guide support cylinder, the second guide support spring is wound outside the second guide support rod, and the two ends of the second guide support spring are respectively fixedly connected to the side wall of the second guide support rod and the outer wall of the second guide support cylinder.

[0015] Optionally, an intelligent warning pressure control mechanism is also included, so that when the pressure in the hydrogen storage tank exceeds the preset threshold, the intelligent warning pressure control mechanism can provide a warning effect, and when the pressure exceeds the preset threshold, the further input of hydrogen into the hydrogen storage tank can be stopped. The intelligent warning pressure control mechanism includes a first electrode contact sheet arranged on the second connecting rod, and a second electrode contact sheet arranged in the plug-in slot. When the second electrode contact sheet contacts the first electrode contact sheet, the series circuit is connected.

[0016] Optionally, the intelligent warning pressure control mechanism also includes a first magnet block, which is arranged between the first electrode contact and the second connecting rod and is used for fixed connection between the first electrode contact and the second connecting rod, and a second magnet block fixedly arranged on the top wall of the plug-in slot, and a plurality of third connecting springs are fixedly connected to the lower end face of the second magnet block, and the lower end of the third connecting spring is fixedly connected to the upper end face of the second electrode contact, wherein the magnetic poles of the second magnet block and the first magnet block on the side close to each other are the same.

[0017] Optionally, it also includes a second limiting mechanism, which includes a first limiting hole and a second limiting hole respectively opened on the blocking tube and the sealing cap, the same second limiting rod is movably inserted in the first limiting hole and the second limiting hole, a fourth connecting spring is wound around the outside of the second limiting rod, and the two ends of the fourth connecting spring are respectively fixedly connected to the side wall of the second limiting rod and the side wall of the second movable hole, a second push-pull rod is movably arranged in the second movable hole, one end of the second push-pull rod is hinged to the second limiting rod, and the other end of the second push-pull rod is hinged to the upper end surface of the movable plug.

[0018] The beneficial effects of the present invention are as follows:

[0019] The present invention improves the structure of the existing wind-solar integrated hydrogen production device. The improved wind-solar integrated hydrogen production device adds a self-pressure relief mechanism on the hydrogen storage tank. The setting of the self-pressure relief mechanism can self-relieve the pressure in the hydrogen storage tank when the pressure in the hydrogen storage tank exceeds a preset threshold, so that the pressure in the hydrogen storage tank will never exceed the preset threshold, thereby achieving the effect of safe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the wind-solar integrated hydrogen production device of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the self-pressure relief mechanism in the wind-solar hydrogen production integrated device of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the first limiting mechanism in the wind-solar hydrogen production integrated device of the present invention;

[0023] Figure 4 The wind-solar hydrogen production integrated device of the present invention Figure 3 A schematic diagram of the enlarged structure in the middle;

[0024] Figure 5 It is a structural schematic diagram of the second limiting mechanism in the wind-solar hydrogen production integrated device of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the connecting rod assembly in the wind-solar hydrogen production integrated device of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the intelligent warning pressure control mechanism in the wind-solar hydrogen production integrated device of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the locking mechanism in the wind-solar integrated hydrogen production device of the present invention.

[0028] Reference numerals

[0029] Hydrogen production equipment 1, connecting pipeline 2, hydrogen storage tank 3, monitoring meter 4,

[0030] Self-pressure relief mechanism 5, pressure relief pipe 51, connecting rod assembly 52, first connecting rod 521, plug-in groove 522, second connecting rod 523, first connecting spring 524, third connecting rod 525, first moving hole 526, second moving hole 527, moving plug 528, sealing ring 529, second connecting spring 5210, fixing cap 53, first guide support assembly 54, first guide support rod 541, first guide support cylinder 542, first guide support spring 543, blocking cap 55, blocking tube 56, blocking groove 57, guide groove 58,

[0031] The first limiting mechanism 6, the supporting rod 61, the first push-pull rod 62, the rotating rod 63, the rotating disk 64, the spiral hole 65, the spiral rod 66, the first limiting rod 67, the third moving hole 68, the supporting assembly 69, the annular groove 691, the fourth moving hole 692, the supporting ball 693, the fourth connecting rod 694, the fixing block 610, the second guide support assembly 611, the second guide support rod 6111, the second guide support cylinder 6112, the second guide support spring 6113, the intelligent warning pressure control mechanism 7, the first magnet block 71, the first electrode contact sheet 72, the second electrode contact sheet 73, the third connecting spring 74, the second magnet block 75,

[0032] The second limiting mechanism 8 , the first limiting hole 81 , the second limiting hole 82 , the second limiting rod 83 , the fourth connecting spring 84 , and the second push-pull rod 85 . DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than 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. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with general skills in the field of the present invention. The words "including" and similar words used in this article mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0034] In view of the problems existing in the prior art, the embodiments of the present invention provide a wind-solar integrated hydrogen production device, such as Figure 1 As shown, the wind-solar integrated hydrogen production device includes a hydrogen production equipment 1, a hydrogen storage tank 3 and a connecting pipe 2. The hydrogen production equipment 1 and the hydrogen storage tank 3 are connected through the connecting pipe 2. The hydrogen storage tank 3 is provided with a monitoring meter 4 and a self-pressure relief mechanism 5. When working, the monitoring meter 4 is used to monitor the pressure in the hydrogen storage tank 3 in real time. The setting of the self-pressure relief mechanism 5 is used to perform a self-pressure relief operation when the pressure in the hydrogen storage tank 3 exceeds a preset threshold value, so that the pressure in the hydrogen storage tank 3 is lower than the preset threshold value.

[0035] During operation, the monitoring meter 4 is used to monitor the pressure in the hydrogen storage tank 3 in real time, ensuring that the staff can intuitively observe the pressure in the hydrogen storage tank 3. The setting of the self-pressure relief mechanism 5 can achieve the effect of self-pressure relief, ensuring that the pressure in the hydrogen storage tank 3 will never exceed the preset threshold.

[0036] In one embodiment, Figure 2 As shown, the self-pressure relief mechanism 5 includes a pressure relief pipe 51 fixedly inserted on the hydrogen storage tank 3, a connecting rod assembly 52 movably inserted in the pressure relief pipe 51, the upper end of the connecting rod assembly 52 is fixedly connected to the lower end surface of the fixing cap 53, a plurality of first guide support assemblies 54 are fixedly connected to the lower end surface of the fixing cap 53, the lower end of the first guide support assembly 54 is fixedly connected to the outer wall of the pressure relief pipe 51, the lower end of the connecting rod assembly 52 is fixedly connected to a blocking cap 55, the blocking cap 55 is abutted and arranged in a blocking groove 57, the blocking groove 57 is opened on the blocking tube 56, the blocking tube 56 is fixedly arranged on the inner wall of the pressure relief pipe 51, and a guide groove 58 is opened on the lower end opening of the blocking tube 56.

[0037] The structural design of the self-pressure relief mechanism 5 is reasonable and can achieve the effect of self-pressure relief. Specifically, as the amount of hydrogen in the hydrogen storage tank 3 increases, the pressure will also increase, so the thrust against the plugging cap 55 will also increase. It should be understood that the plugging cap 55 is subjected to an upward gas pressure thrust, and the first guide support assembly 54 provides a downward pulling force for the plugging cap 55 through the fixed cap 53 and the connecting rod assembly 52. ​​When the pulling force is greater than the gas pressure thrust, the plugging cap 55 is pressed tightly against the blocking tube 56 to achieve the storage of hydrogen; when the pulling force is less than the gas pressure thrust, the plugging cap 55 is separated from the blocking tube 56, and the gas will be discharged through the blocking tube 56 at this time, achieving the effect of pressure relief, so that the gas pressure in the hydrogen storage tank 3 does not exceed the preset threshold value.

[0038] In one embodiment, Figure 2 As shown, the first guide support assembly 54 includes a first guide support rod 541, a first guide support cylinder 542 and a first guide support spring 543. The first guide support rod 541 is movably inserted in the first guide support cylinder 542. The first guide support spring 543 is wound outside the first guide support rod 541. The two ends of the first guide support spring 543 are respectively fixedly connected to the side wall of the first guide support rod 541 and the outer side wall of the first guide support cylinder 542. The setting of the first guide support assembly 54 can not only provide a downward pulling force for the fixing cap 53, but also limit the movement of the fixing cap 53, so that the fixing cap 53 can only move in the vertical direction.

[0039] In one embodiment, Figure 6As shown, the connecting rod assembly 52 includes a first connecting rod 521 fixedly connected to the fixing cap 53, the first connecting rod 521 is provided with an insertion slot 522, a second connecting rod 523 is movably inserted in the insertion slot 522, a first connecting spring 524 is wound around the second connecting rod 523, two ends of the first connecting spring 524 are respectively fixedly connected to the side wall of the second connecting rod 523 and the side wall of the first connecting rod 521, the lower end of the second connecting rod 523 is fixedly connected to the third connecting rod 525, the third connecting rod 525 is fixedly connected to the third connecting rod 525, and the third connecting rod 525 is fixedly connected to the third connecting rod 525. 25 is movably plugged in the first moving hole 526 and the second moving hole 527, the first moving hole 526 and the second moving hole 527 are provided on the blocking cap 55, the lower end of the third connecting rod 525 is fixedly connected with a moving plug 528, the moving plug 528 is movably plugged in the second moving hole 527, a sealing ring 529 is fixedly sleeved outside the moving plug 528, a plurality of second connecting springs 5210 are fixedly connected to the lower end surface of the first connecting rod 521, and the lower end of the second connecting spring 5210 is fixedly connected to the upper end surface of the blocking cap 55. The setting of the connecting rod assembly 52 can play a buffering role to avoid damage to the equipment caused by sudden impact of air pressure.

[0040] In one embodiment, Figure 3 and Figure 4 As shown, the wind-solar hydrogen production integrated device also includes a first limiting mechanism 6, which includes a supporting rod 61 fixedly connected to the side wall of the connecting rod assembly 52, and a first push-pull rod 62 is hinged on the lower end surface of the supporting rod 61, and a rotating rod 63 is rotatably arranged on the lower end of the first push-pull rod 62, and the rotating rod 63 is rotatably arranged on the edge of a rotating disk 64, and a spiral hole 65 is opened in the middle of the rotating disk 64, and a spiral rod 66 is inserted into the inner thread of the spiral hole 65, and one end of the spiral rod 66 is fixedly connected to a first limiting rod 67, and the first limiting rod 67 is movably inserted in a third movable hole 68, and the third movable hole 68 is opened on the pressure relief pipe 51, and a sealing plug is arranged in the third movable hole 68, and the setting of the sealing plug can be used for sealing between the first limiting rod 67 and the third movable hole 68.

[0041] The setting of the first limiting mechanism 6 can limit the upward movement of the blocking cap 55 during the pressure relief process; specifically, the upward movement of the connecting rod assembly 52 will cause the rotating disk 64 to rotate through the combined structure of the supporting rod 61, the first push-pull rod 62 and the rotating rod 63. Since the screw rod 66 is threadedly inserted in the spiral hole 65, the rotation of the rotating disk 64 will cause the screw rod 66 to move rightward. The rightward movement of the screw rod 66 will cause the first limiting rod 67 to enter the pressure relief pipe 51 and move to the top of the blocking cap 55, forming a blocking effect, thereby limiting the upward movement of the blocking cap 55.

[0042] In one embodiment, Figure 4 As shown, the first limiting mechanism 6 also includes a supporting assembly 69, and the supporting assembly 69 includes an annular groove 691 opened on the rotating disk 64, and a fourth movable hole 692 is opened on the annular groove 691, and a plurality of supporting balls 693 are movably arranged in the annular groove 691, and the side walls of the supporting balls 693 are fixedly connected with a fourth connecting rod 694, and the fourth connecting rod 694 is movably arranged in the fourth movable hole 692, and one end of the fourth connecting rod 694 away from the supporting balls 693 is fixedly connected to the outer wall of the pressure relief pipe 51, wherein the opening size of the fourth movable hole 692 in the vertical direction is smaller than the hole diameter of the annular groove 691.

[0043] In one embodiment, Figure 5 As shown, the first limiting mechanism 6 also includes a fixed block 610 fixedly connected to the side wall of the spiral rod 66, and one end of the second guide support assembly 611 is fixedly connected to the fixed block 610, and the other end of the second guide support assembly 611 is fixedly connected to the outer wall of the pressure relief pipe 51, and the second guide support assembly 611 includes a second guide support rod 6111, a second guide support cylinder 6112 and a second guide support spring 6113, the second guide support rod 6111 is movably inserted in the second guide support cylinder 6112, the second guide support spring 6113 is wound around the outside of the second guide support rod 6111, and the two ends of the second guide support spring 6113 are respectively fixedly connected to the side wall of the second guide support rod 6111 and the outer wall of the second guide support cylinder 6112.

[0044] The arrangement of the combined structure of the fixed block 610 and the second guide support assembly 611 can not only limit the movement of the screw rod 66 so that the screw rod 66 can only move in the horizontal direction, but also provide power for the reset movement of the screw rod 66.

[0045] In one embodiment, Figure 7 As shown, the wind-solar hydrogen production integrated device also includes an intelligent warning pressure control mechanism 7, so that when the pressure in the hydrogen storage tank 3 exceeds the preset threshold, the intelligent warning pressure control mechanism 7 can not only provide a warning effect, but also stop the continued input of hydrogen into the hydrogen storage tank 3 when the pressure exceeds the preset threshold. The intelligent warning pressure control mechanism 7 includes a first electrode contact 72 arranged on the second connecting rod 523, and a second electrode contact 73 arranged in the plug-in slot 522. When the second electrode contact 73 contacts the first electrode contact 72, the series circuit is connected.

[0046] The intelligent warning pressure control mechanism 7 is provided to intelligently control the input of hydrogen and to give a warning. Specifically, the driving force will push the second movable hole 527 to move upward. The upward movement of the second movable hole 527 will move the first electrode contact piece 72 upward through the third connecting rod 525 and the second connecting rod 523. When the first electrode contact piece 72 contacts the second electrode contact piece 73, the series circuit is connected. At this time, the warning bell sounds a warning. At the same time, the electric valve arranged on the connecting pipe 2 is controlled to be closed, and the further input of hydrogen into the hydrogen storage tank 3 is stopped.

[0047] In one embodiment, Figure 7 As shown, the intelligent warning pressure control mechanism 7 also includes a first magnet block 71, which is arranged between the first electrode contact piece 72 and the second connecting rod 523 and is used for fixed connection between the first electrode contact piece 72 and the second connecting rod 523, and a second magnet block 75 fixedly arranged on the top wall of the plug-in slot 522, and a plurality of third connecting springs 74 are fixedly connected to the lower end surface of the second magnet block 75, and the lower end of the third connecting spring 74 is fixedly connected to the upper end surface of the second electrode contact piece 73, wherein the second magnet block 75 and the first magnet block 71 have the same magnetic pole on the side close to each other.

[0048] There is a repulsive force between the first magnet block 71 and the second magnet block 75. The existence of the repulsive force can buffer the impact force. Specifically, when the first electrode contact piece 72 and the second electrode contact piece 73 are in contact, an impact force will be generated. The existence of the impact force will cause damage to the first electrode contact piece 72 and the second electrode contact piece 73. The arrangement of the first magnet block 71 and the second magnet block 75 in the present invention can effectively buffer the impact force through the repulsive force therebetween, so that the first electrode contact piece 72 and the second electrode contact piece 73 are gently in contact with each other, thereby protecting the first electrode contact piece 72 and the second electrode contact piece 73.

[0049] In one embodiment, Figure 8 As shown, the wind-solar integrated hydrogen production device also includes a second limiting mechanism 8, which includes a first limiting hole 81 and a second limiting hole 82 respectively opened on the blocking tube 56 and the sealing cap 55, and the same second limiting rod 83 is movably inserted in the first limiting hole 81 and the second limiting hole 82, and a fourth connecting spring 84 is wound around the outside of the second limiting rod 83, and the two ends of the fourth connecting spring 84 are respectively fixedly connected to the side wall of the second limiting rod 83 and the side wall of the second movable hole 527, and a second push-pull rod 85 is movably arranged in the second movable hole 527, one end of the second push-pull rod 85 is hinged to the second limiting rod 83, and the other end of the second push-pull rod 85 is hinged to the upper end surface of the movable plug 528.

[0050] The second limiting mechanism 8 of the present invention can lock the blocking cap 55 and the blocking tube 56. Specifically, when the first electrode contact piece 72 and the second electrode contact piece 73 are not in contact, there will be no relative movement between the blocking cap 55 and the blocking tube 56, thereby ensuring that the device has stable performance. During operation, as the movable plug 528 moves upward, the second limiting rod 83 is pushed to the right by the second push-pull rod 85. When the second limiting rod 83 moves to the outside of the first limiting hole 81, the blocking cap 55 can move relative to the blocking tube 56.

[0051] The beneficial effects of the present invention are as follows:

[0052] The present invention improves the structure of the existing wind-solar integrated hydrogen production device. The improved wind-solar integrated hydrogen production device adds a self-pressure relief mechanism 5 on the hydrogen storage tank 3. The setting of the self-pressure relief mechanism 5 can self-relieve the pressure in the hydrogen storage tank 3 when the pressure in the hydrogen storage tank 3 exceeds a preset threshold, so that the pressure in the hydrogen storage tank 3 will never exceed the preset threshold, thereby achieving the effect of safe production.

[0053] Although the embodiments of the present invention are described in detail above, it is obvious to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations are within the scope and spirit of the present invention as described in the claims. Moreover, the present invention described herein may have other embodiments and may be implemented or realized in a variety of ways.

Claims

1. A wind-solar integrated hydrogen production device, characterized in that: The invention comprises a hydrogen production device (1), a hydrogen storage tank (3) and a connecting pipe (2); the hydrogen production device (1) and the hydrogen storage tank (3) are connected via the connecting pipe (2); a monitoring meter (4) and a self-pressure relief mechanism (5) are arranged on the hydrogen storage tank (3); when in operation, the monitoring meter (4) is used to monitor the pressure in the hydrogen storage tank (3) in real time; the self-pressure relief mechanism (5) is arranged to perform a self-pressure relief operation when the pressure in the hydrogen storage tank (3) exceeds a preset threshold value, so as to reduce the pressure in the hydrogen storage tank (3) to below the preset threshold value.

2. The wind-solar integrated hydrogen production device according to claim 1, characterized in that: The self-pressure relief mechanism (5) comprises a pressure relief pipe (51) fixedly plugged on the hydrogen storage tank (3), a connecting rod assembly (52) movably plugged into the pressure relief pipe (51), the upper end of the connecting rod assembly (52) fixedly connected to the lower end surface of the fixing cap (53), a plurality of first guide support assemblies (54) fixedly connected to the lower end surface of the fixing cap (53), the lower end of the first guide support assembly (54) fixedly connected to the outer wall of the pressure relief pipe (51), the lower end of the connecting rod assembly (52) fixedly connected to a blocking cap (55), the blocking cap (55) abuttingly arranged in a blocking groove (57), the blocking groove (57) being provided on the blocking pipe (56), the blocking pipe (56) fixedly arranged on the inner wall of the pressure relief pipe (51), and a guide groove (58) being provided on the lower end opening of the blocking pipe (56).

3. The wind-solar integrated hydrogen production device according to claim 2 is characterized in that: The first guide support assembly (54) includes a first guide support rod (541), a first guide support tube (542) and a first guide support spring (543); the first guide support rod (541) is movably inserted into the first guide support tube (542); the first guide support spring (543) is wound around the outside of the first guide support rod (541); and the two ends of the first guide support spring (543) are respectively fixedly connected to the side wall of the first guide support rod (541) and the outer side wall of the first guide support tube (542).

4. The wind-solar integrated hydrogen production device according to claim 2 is characterized in that: The connecting rod assembly (52) comprises a first connecting rod (521) fixedly connected to a fixing cap (53); a plug-in slot (522) is provided on the first connecting rod (521); a second connecting rod (523) is movably plugged into the plug-in slot (522); a first connecting spring (524) is wound around the outside of the second connecting rod (523); two ends of the first connecting spring (524) are respectively fixedly connected to the side wall of the second connecting rod (523) and the side wall of the first connecting rod (521); a third connecting rod (525) is fixedly connected to the lower end of the second connecting rod (523); the third connecting rod (525) The third connecting rod (525) is movably plugged in the first movable hole (526) and the second movable hole (527), the first movable hole (526) and the second movable hole (527) are opened on the blocking cap (55), the lower end of the third connecting rod (525) is fixedly connected with a movable plug (528), the movable plug (528) is movably plugged in the second movable hole (527), the outer fixed sleeve of the movable plug (528) is provided with a sealing ring (529), the lower end surface of the first connecting rod (521) is fixedly connected with a plurality of second connecting springs (5210), the lower end of the second connecting spring (5210) is fixedly connected to the upper end surface of the blocking cap (55).

5. The wind-solar integrated hydrogen production device according to claim 2, characterized in that: The invention also comprises a first limiting mechanism (6), wherein the first limiting mechanism (6) comprises a supporting rod (61) fixedly connected to the side wall of the connecting rod assembly (52), a first push-pull rod (62) being hinged on the lower end surface of the supporting rod (61), a rotating rod (63) being rotatably arranged on the lower end of the first push-pull rod (62), the rotating rod (63) being rotatably arranged on the edge of a rotating disk (64), a spiral hole (65) being provided in the middle of the rotating disk (64), a spiral rod (66) being threadedly inserted into the internal thread of the spiral hole (65), one end of the spiral rod (66) being fixedly connected to a first limiting rod (67), the first limiting rod (67) being movably inserted into a third movable hole (68), the third movable hole (68) being provided on the pressure relief pipe (51), a sealing plug being arranged in the third movable hole (68), and the sealing plug being arranged so as to be used for sealing between the first limiting rod (67) and the third movable hole (68).

6. The wind-solar integrated hydrogen production device according to claim 5 is characterized in that: The first limiting mechanism (6) also includes a supporting assembly (69), the supporting assembly (69) includes an annular groove (691) provided on the rotating disk (64), a fourth movable hole (692) provided on the annular groove (691), a plurality of supporting balls (693) movably arranged in the annular groove (691), a fourth connecting rod (694) fixedly connected to the side wall of the supporting ball (693), the fourth connecting rod (694) movably arranged in the fourth movable hole (692), and one end of the fourth connecting rod (694) away from the supporting ball (693) is fixedly connected to the outer wall of the pressure relief pipe (51), wherein the opening size of the fourth movable hole (692) in the vertical direction is smaller than the hole diameter of the annular groove (691).

7. The wind-solar integrated hydrogen production device according to claim 5, characterized in that: The first limiting mechanism (6) also includes a fixed block (610) fixedly connected to the side wall of the spiral rod (66), one end of the second guide support assembly (611) is fixedly connected to the fixed block (610), the other end of the second guide support assembly (611) is fixedly connected to the outer wall of the pressure relief pipe (51), the second guide support assembly (611) includes a second guide support rod (6111), a second guide support cylinder (6112) and a second guide support spring (6113), the second guide support rod (6111) is movably inserted in the second guide support cylinder (6112), the second guide support spring (6113) is wound around the outside of the second guide support rod (6111), and the two ends of the second guide support spring (6113) are respectively fixedly connected to the side wall of the second guide support rod (6111) and the outer wall of the second guide support cylinder (6112).

8. The wind-solar integrated hydrogen production device according to claim 4, characterized in that: The invention also includes an intelligent warning pressure control mechanism (7), so that when the pressure in the hydrogen storage tank (3) exceeds the preset threshold value, the intelligent warning pressure control mechanism (7) can provide a warning function, and when the pressure exceeds the preset threshold value, the hydrogen gas input into the hydrogen storage tank (3) can be stopped. The intelligent warning pressure control mechanism (7) includes a first electrode contact (72) arranged on the second connecting rod (523), and a second electrode contact (73) arranged in the plug-in slot (522). When the second electrode contact (73) contacts the first electrode contact (72), the series circuit is connected.

9. The wind-solar integrated hydrogen production device according to claim 8, characterized in that: The intelligent warning pressure control mechanism (7) also includes a first magnet block (71), which is arranged between the first electrode contact piece (72) and the second connecting rod (523) and is used for fixed connection between the first electrode contact piece (72) and the second connecting rod (523), and a second magnet block (75) fixedly arranged on the top wall of the plug-in slot (522), wherein a plurality of third connecting springs (74) are fixedly connected to the lower end surface of the second magnet block (75), and the lower end of the third connecting spring (74) is fixedly connected to the upper end surface of the second electrode contact piece (73), wherein the second magnet block (75) and the first magnet block (71) have the same magnetic pole on the side close to each other.

10. The wind-solar integrated hydrogen production device according to claim 4, characterized in that: It also includes a second limiting mechanism (8), which includes a first limiting hole (81) and a second limiting hole (82) respectively opened on the blocking tube (56) and the blocking cap (55), the first limiting hole (81) and the second limiting hole (82) are movably inserted with the same second limiting rod (83), the second limiting rod (83) is wound with a fourth connecting spring (84), the two ends of the fourth connecting spring (84) are respectively fixedly connected to the side wall of the second limiting rod (83) and the side wall of the second movable hole (527), a second push-pull rod (85) is movably arranged in the second movable hole (527), one end of the second push-pull rod (85) is hinged to the second limiting rod (83), and the other end of the second push-pull rod (85) is hinged to the upper end surface of the movable plug (528).

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