A liquid hydrogen storage type hydrogen refueling station

Abstract

The present invention discloses a liquid hydrogen storage type hydrogen refueling station, which relates to the field of liquid hydrogen storage in hydrogen stations. It solves the problems that the existing liquid hydrogen storage type hydrogen refueling station stores through a single storage tank, making it difficult to detect leaks in a timely manner and prone to causing major safety problems. The following solution is now proposed. It includes a base, a bracket, an outer cylinder, a cylinder cover, a support plate, a liquid hydrogen storage tank, a pipeline outlet, a fastening clamping plate, a mounting seat, a collar, a slide rail, a support connecting plate, a hydrogen gas detector, a rubber sealing ring, a reinforcing rib, a lower rotating plate, a rotating shaft, a support pile, and a slider. Each slider is slidably arranged in the slide rail on its respective side. An opening and closing adjustment mechanism is also provided between the slide rail and the cylinder cover. A stabilizing mechanism is also arranged inside the outer cylinder. This device has the characteristics of being able to store and supervise the liquid hydrogen in the hydrogen station in a dual manner, effectively detecting leaks in a timely manner, improving safety, facilitating adjustment and operation and maintenance, and having high structural stability strength.

Description

Technical Field

[0001] The present invention relates to the field of liquid hydrogen storage in hydrogen stations, and particularly to a hydrogen refueling station with liquid hydrogen storage type. Background Art

[0002] Liquid hydrogen is a colorless, odorless and transparent liquid formed by liquefying hydrogen, and it is a mixture of para-hydrogen (P-H2) and ortho-hydrogen (O-H2). Ortho-hydrogen and para-hydrogen are two spin isomers of molecular hydrogen, and this isomerism is caused by two possible couplings of the nuclear spins of two hydrogen atoms. The nuclear spin directions of ortho-hydrogen are the same, while those of para-hydrogen are opposite. The magnetic moment of para-hydrogen molecule is zero, and the magnetic moment of ortho-hydrogen molecule is twice that of the proton magnetic moment. Para-hydrogen and ortho-hydrogen have exactly the same chemical properties but different physical properties, and it is shown that the ground state energy of para-hydrogen is lower than that of ortho-hydrogen. At room temperature or above room temperature, the equilibrium composition of ortho-hydrogen and para-hydrogen is 75:25, which is called standard hydrogen (n-H2) or normal hydrogen. Below normal temperature, the equilibrium composition of ortho-para hydrogen will change, and the percentage of para-hydrogen increases. The ortho-para conversion of gaseous hydrogen can only occur in the presence of a catalyst, while liquid hydrogen will spontaneously undergo ortho-para conversion without a catalyst, but the conversion rate is slow. The ortho-para conversion of hydrogen is an exothermic reaction, and the heat released during the conversion process is related to the temperature during the conversion. To reduce the evaporation loss of liquid hydrogen caused by the exothermic ortho-para hydrogen conversion, the para-hydrogen content in all liquid hydrogen products is required to be at least above 95%, that is, it is required to catalytically convert almost all ortho-hydrogen into para-hydrogen during liquefaction.

[0003] The dual-component cryogenic liquid propellant composed of liquid hydrogen and liquid oxygen has extremely high energy, so liquid hydrogen is also widely used as a fuel. With the development of technology, the application of energy-saving and environmental protection tools and equipment such as hydrogen energy electric vehicles, hydrogen refueling stations are gradually being popularized and constructed. Due to the explosive and flammable characteristics of liquid hydrogen, the storage requirements for liquid hydrogen are extremely high. Existing hydrogen refueling stations generally store liquid hydrogen through storage tanks at the same time, and it is extremely difficult to detect in time when leakage occurs, which is likely to cause major safety accident problems. Therefore, a hydrogen refueling station with liquid hydrogen storage type is proposed. Summary of the Invention

[0004] The purpose of the present invention is to provide a hydrogen refueling station with liquid hydrogen storage type, which solves the problems that the existing hydrogen refueling station with liquid hydrogen storage type stores through a single storage tank, is difficult to detect in time when leakage occurs, and is also likely to cause major safety problems.

[0005] To achieve the above object, the present invention provides the following technical solution: A hydrogen storage type hydrogen refueling station, including a base, a bracket, an outer cylinder, a cylinder cover, a shelf board, a liquid hydrogen storage tank, and a pipeline outlet. Fastening plates are fixedly sleeved at both ends of each liquid hydrogen storage tank, and mounting seats are fixedly connected to the outer side surfaces of the fastening plates in an array. Sleeve rings are fixedly sleeved at the front and rear ends of the inner wall of the outer cylinder, and the mounting seats are fixedly installed with the sleeve rings through bolts. Slide rails are fixedly installed at the four corners of the upper end surface of the base, and a support connecting plate is fixedly connected between the mutually remote ends of the front and rear slide rails. Hydrogen gas detectors are fixedly installed on the inner walls of the two cylinder covers, and rubber sealing rings are fixedly sleeved on the inner edges of the two cylinder covers;

[0006] A plurality of reinforcing ribs are linearly and fixedly connected in the base. A lower rotating plate is fixedly connected to the lower end of each cylinder cover. A rotating shaft is fixedly sleeved at the middle position of each lower rotating plate. Support piles are rotationally connected to both ends of the rotating shaft through scroll hinges. Sliders are fixedly connected to the mutually remote ends of the two support piles. Each slider is slidably arranged in the slide rail on its respective side. An opening and closing adjustment mechanism is arranged between the slide rail and the cylinder cover, and a stabilizing mechanism is also arranged in the outer cylinder.

[0007] Preferably, brackets are fixedly connected to the front and rear sides of the upper end surface of the base, and an outer cylinder is fixedly sleeved through the front and rear brackets. Cylinder covers are arranged at the front and rear ends of the outer cylinder. The shelf board and the front and rear fastening plates are sleeved in the outer cylinder, and liquid hydrogen storage tanks are fixedly sleeved in an array together. A pipeline outlet is arranged at the upper front side of the outer cylinder. Pipe valves are arranged at the front ends of each liquid hydrogen storage tank.

[0008] Preferably, the opening and closing adjustment mechanism includes an electric cylinder, a connecting seat, an inclination limiting seat, a guiding support seat, a side seat, a limiting rod, and a right-angle limiting seat. An electric cylinder is fixedly installed on the inner wall of one side of each slide rail. Each electric cylinder is fixedly connected to the slider slidably arranged in its respective slide rail. Connecting seats are fixedly connected to the two support piles in the same axial direction. An inclination limiting seat is fixedly connected between the two connecting seats. Guiding support seats are fixedly connected to the lower ends of the mutually remote sides of the two cylinder covers. Side seats are fixedly connected to the upper end surfaces of each slide rail. Limiting rods are fixedly connected between the left and right two side seats on the same front and rear side. Right-angle limiting seats are fixedly connected to the mutually remote sides of the front and rear reinforcing ribs.

[0009] Preferably, the stabilizing mechanism includes a support base, a top rod, a collar seat, a limiting slide rod, a spring, a single hinge seat, a connecting block, a rotating rod, a double hinge seat, and a clamping seat. The inner walls of each cylinder cover are fixedly connected with support bases in an array, and top rods are fixedly connected to the support bases. The inner walls of the front and rear sides of the outer cylinder are fixedly connected with collar seats in an array. Each collar seat slidably sleeved with a limiting slide rod, and a spring is fixedly connected between the limiting slide rod and the collar seat. Connecting blocks are fixedly connected between the mutually approaching ends of the limiting slide rods on the front and rear sides, and a single hinge seat is fixedly installed through the connecting block. A rotating rod is rotatably connected to each single hinge seat. A double hinge seat is jointly rotatably connected between the mutually approaching ends of the adjacent front and rear rotating rods, and a clamping seat is fixedly connected to the double hinge seat. Each clamping seat is sleeved and clamped with the corner of the frame plate.

[0010] Preferably, the mounting seats fixedly connected to the outer sides of each fastening clamping plate are slidably sleeved in the collars on their respective sides, and the rubber sealing rings are sleeved and sealed with the front and rear ends of the inner wall of the outer cylinder.

[0011] Preferably, connecting seats are fixedly connected to the mutually remote sides of the front and rear support piles. Angle limiting seats are fixedly connected between the left and right two connecting seats on the same side of the front and rear. The front and rear angle limiting seats are respectively arranged on the mutually remote sides of the front and rear lower rotating plates.

[0012] Preferably, the guiding support seats fixedly connected to the lower sides of the front and rear cylinder covers are slidably and fittingly abutted and connected with the limiting rods on their respective sides. The front and rear angle limiting seats and the right angle limiting seat are respectively abutted and limited with the front and rear sides of the lower rotating plate.

[0013] Preferably, the support bases and the collar seats arranged in an array are coaxially arranged correspondingly. The limiting slide rods are slidably sleeved in their respective collar seats. Springs are fixedly connected between the mutually remote ends of the limiting slide rods on the front and rear sides and their respective collar seats on one side. Top rods are fixedly connected to the mutually approaching side surfaces of the support bases arranged in an array on the front and rear sides. Each top rod abuts against one end of the limiting slide rod on its respective side.

[0014] Preferably, the mutually approaching ends of the limiting slide rods arranged in an array on the front and rear sides are arranged on the mutually approaching sides of the collar seats on the front and rear sides, and a connecting block is fixedly connected at this end. The limiting slide rod is fixedly connected with a single hinge seat through the connecting block.

[0015] Preferably, a double hinge seat is jointly rotatably connected between the mutually approaching ends of the rotating rods rotatably connected to the single hinge seats on the same front and rear axis. Clamping seats are fixedly connected to the mutually approaching sides of each double hinge seat and are respectively sleeved and clamped at the four corners of the frame plate in an array.

[0016] Compared with the related technologies, a liquid hydrogen storage type hydrogen refueling station provided by the present invention has the following beneficial effects:

[0017] 1. The present invention provides a liquid hydrogen storage type hydrogen refueling station. By connecting pipelines to the pipe valves at the front ends of each liquid hydrogen storage tank and leading them out through the pipeline outlets, it is convenient to export the hydrogen in the liquid hydrogen storage tank for use. When the front and rear barrel covers cover the front and rear ends of the outer barrel, the inner part is a sealed space. A hydrogen gas detector can be used to monitor the sealed outer barrel in real time. When there is a hydrogen leak, it can be detected in time, thereby effectively monitoring the pipe valves of the liquid hydrogen storage tank and the starting section of the pipeline, effectively avoiding leakage in this part, and at the same time forming double protection for the liquid hydrogen.

[0018] 2. The present invention provides a liquid hydrogen storage type hydrogen refueling station. Under the action of the scroll hinge, the barrel covers will rotate away from each other and be limited by the inclination limit seats on the side away from each other. As the two barrel covers continue to move away from each other, the guiding support seats on the two barrel covers will gradually contact the respective limit rods. Then, driven by the limit rods, the front and rear barrel covers will rotate towards each other again against the force of the scroll hinge until they rotate below the limit rods. In this way, the barrel covers will also be located below the outer barrel. When disassembling, assembling and maintaining the equipment in the outer barrel and the liquid hydrogen storage tank, it will not cause interference, thus facilitating adjustment and maintenance.

[0019] 3. The present invention provides a liquid hydrogen storage type hydrogen refueling station. As the front and rear barrel covers approach each other, the single hinge seats fixedly connected by the connecting blocks on the mutually approaching sides of the front and rear limit sliding rods are pushed to approach each other, thereby driving the rotation of the rotating rods rotatably connected thereto. Then, the clamping seats rotatably connected between the mutually approaching ends of the front and rear rotations are driven to gather together and respectively engage with the four corners of the shelf board, thereby providing a certain support for the middle shelf board, and further ensuring the structural strength and use stability of the middle part of the liquid hydrogen storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a liquid hydrogen storage type hydrogen refueling station of the present invention.

[0021] Figure 2 It is a bottom view structural diagram of a liquid hydrogen storage type hydrogen refueling station of the present invention.

[0022] Figure 3 It is a side view structural diagram of a liquid hydrogen storage type hydrogen refueling station of the present invention.

[0023] Figure 4 It is a cross-sectional view of the side view structure of a liquid hydrogen storage type hydrogen refueling station of the present invention.

[0024] Figure 5 Schematic diagram of the perspective structure without an outer cylinder of a liquid hydrogen storage type hydrogen refueling station according to the present invention.

[0025] Figure 6 Schematic diagram of the structure of a liquid hydrogen storage tank combination of a liquid hydrogen storage type hydrogen refueling station according to the present invention.

[0026] Figure 7 Schematic diagram of the structure of a cylinder cover of a liquid hydrogen storage type hydrogen refueling station according to the present invention.

[0027] In the figure: 1, base; 2, bracket; 3, outer cylinder; 4, cylinder cover; 5, support plate; 6, liquid hydrogen storage tank; 7, fastening clamping plate; 8, mounting seat; 9, collar; 10, slide rail; 11, support connecting plate; 12, hydrogen gas detector; 13, rubber sealing ring; 14, reinforcing rib; 15, pipeline outlet; 401, lower rotating plate; 402, rotating shaft; 403, support pile; 404, slider; 405, electric cylinder; 406, connecting seat; 407, inclination limiting seat; 408, guiding support seat; 409, side seat; 410, limiting rod; 411, right-angle limiting seat; 501, support seat; 502, ejector rod; 503, collar seat; 504, limiting slide rod; 505, spring; 506, single hinge seat; 507, connecting block; 508, rotating rod; 509, double hinge seat; 510, clamping seat. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1:

[0030] Please refer to Figure 1-7 , the present invention provides a technical solution: a liquid hydrogen storage type hydrogen refueling station, including a base 1, a bracket 2, an outer cylinder 3, a cylinder cover 4, a support plate 5, a liquid hydrogen storage tank 6, and a pipeline outlet 15. Both ends of each liquid hydrogen storage tank 6 are fixedly sleeved with a fastening clamping plate 7, and the outer side surface of the fastening clamping plate 7 is fixedly connected with a mounting seat 8 in an array. Collars 9 are fixedly sleeved at the front and rear ends of the inner wall of the outer cylinder 3, and the mounting seat 8 is fixedly installed with the collar 9 through bolts. Slide rails 10 are fixedly installed at the four corners of the upper end surface of the base 1, and a support connecting plate 11 is fixedly connected between the mutually remote ends of the front and rear slide rails 10. Hydrogen gas detectors 12 are fixedly installed on the inner walls of the two cylinder covers 4, and rubber sealing rings 13 are fixedly sleeved on the inner edges of the two cylinder covers 4;

[0031] A plurality of reinforcing ribs 14 are fixedly connected in a linear array inside the base 1. A lower rotating plate 401 is fixedly connected to the lower end of each cylinder cover 4. A rotating shaft 402 is fixedly sleeved in the middle position of each lower rotating plate 401. Both ends of the rotating shaft 402 are rotatably connected to a support pile 403 through a scroll hinge. Sliders 404 are fixedly connected to the mutually remote ends of the support piles 403 on both sides. Each slider 404 is slidably arranged in a slide rail 10 on its respective side. An opening and closing adjustment mechanism is also provided between the slide rail 10 and the cylinder cover 4. A stabilizing mechanism is also provided inside the outer cylinder 3.

[0032] In this implementation scheme, collar rings 9 are fixedly sleeved on the front and rear sides of the inner wall of the outer cylinder 3. A plurality of liquid hydrogen storage tanks 6 are also arranged in an array inside the outer cylinder 3. Each of the liquid hydrogen storage tanks 6 is fixedly sleeved in a frame plate 5 in an array. Fastening clamping plates 7 are symmetrically and fixedly sleeved at the front and rear ends of each of the liquid hydrogen storage tanks 6. The fastening clamping plates 7 are sleeved inside the collar rings 9 on the front and rear sides and are tightly connected to the inner wall of the collar rings 9 through mounting seats 8 fixedly connected to the outside in an array and bolts. Cylinder covers 4 are arranged on the front and rear sides of the outer cylinder 3. Hydrogen gas detectors 12 are installed inside both of the front and rear cylinder covers 4. A pipe valve is arranged at the front end of the liquid hydrogen storage tank 4. A pipeline outlet 15 is arranged at the upper end of the front side of the outer cylinder 3. In this way, it is convenient to connect a pipeline to the pipe valve at the front end of each of the liquid hydrogen storage tanks 6 and lead it out through the pipeline outlet 15. Furthermore, it is convenient to export the hydrogen in the liquid hydrogen storage tanks 6 for use. In this way, when the cylinder covers 4 on the front and rear sides cover the front and rear ends of the outer cylinder 3, the inside thereof is a sealed space. The sealed outer cylinder 3 can be monitored in real time through the hydrogen gas detector 12. When there is hydrogen leakage, it can be discovered in time. Furthermore, the pipe valves of the liquid hydrogen storage tanks 6 and the starting section of the pipeline can be effectively monitored, effectively avoiding leakage in this part. At the same time, double protection for the liquid hydrogen can be formed.

[0033] Embodiment Two:

[0034] Please refer to Figure 1-7 As shown, on the basis of Embodiment One, the present invention provides a technical solution: Brackets 2 are fixedly connected to the front and rear sides of the upper end surface of the base 1. An outer cylinder 3 is fixedly sleeved through the brackets 2 on the front and rear sides. Cylinder covers 4 are arranged at the front and rear ends of the outer cylinder 3. The frame plate 5 and the fastening clamping plates 7 on the front and rear sides are all sleeved inside the outer cylinder 3 and jointly fixedly sleeve a liquid hydrogen storage tank 6 in an array. A pipeline outlet 15 is arranged at the upper end of the front side of the outer cylinder 3. Pipe valves are arranged at the front ends of each of the liquid hydrogen storage tanks 6.

[0035] The opening and closing adjustment mechanism includes an electric cylinder 405, a connecting seat 406, an inclination limiting seat 407, a guiding and supporting seat 408, a side seat 409, a limiting rod 410, and a right-angle limiting seat 411. An electric cylinder 405 is fixedly installed on the inner wall of one side of each slide rail 10. Each electric cylinder 405 is fixedly connected to a slider 404 slidably arranged in its respective slide rail 10. Connecting seats 406 are fixedly connected to two supporting piles 403 in the same axial direction. An inclination limiting seat 407 is fixedly connected between the connecting seats 406 on both sides. Guiding and supporting seats 408 are fixedly connected to the lower ends of the mutually remote sides of the two barrel covers 4. Side seats 409 are fixedly connected to the upper end surfaces of each slide rail 10. Limiting rods 410 are fixedly connected between the left and right side seats 409 on the same side in the front and rear. Right-angle limiting seats 411 are fixedly connected to the mutually remote sides of the reinforcing ribs 14 on both sides in the front and rear.

[0036] The stabilizing mechanism includes a supporting seat 501, a top rod 502, a collar seat 503, a limiting slide rod 504, a spring 505, a single hinge seat 506, a connecting block 507, a rotating rod 508, a double hinge seat 509, and a clamping seat 510. Supporting seats 501 are fixedly connected in an array on the inner wall of each barrel cover 4, and a top rod 502 is fixedly connected to the supporting seat 501. Collar seats 503 are fixedly connected in an array on the inner walls of the front and rear sides of the outer cylinder 3. A limiting slide rod 504 is slidably sleeved in each collar seat 503, and a spring 505 is fixedly connected between the limiting slide rod 504 and the collar seat 503. Connecting blocks 507 are fixedly connected between the mutually approaching ends of the limiting slide rods 504 on both sides in the front and rear, and a single hinge seat 506 is fixedly installed through the connecting block 507. A rotating rod 508 is rotatably connected to each single hinge seat 506. A double hinge seat 509 is rotatably connected between the mutually approaching ends of the adjacent rotating rods 508 in the front and rear, and a clamping seat 510 is fixedly connected to the double hinge seat 509. Each clamping seat 510 is sleeved and clamped with the corner of the frame plate 5.

[0037] The mounting seats 8 fixedly connected in an array on the outer side surface of each fastening card plate 7 are slidably sleeved in the collars 9 on their respective sides. The rubber sealing ring 13 is sleeved and sealed with the front and rear ends of the inner wall of the outer cylinder 3.

[0038] Connecting seats 406 are fixedly connected to the mutually remote sides of the supporting piles 403 on both sides in the front and rear. An inclination limiting seat 407 is fixedly connected between the left and right connecting seats 406 on the same side in the front and rear. The inclination limiting seats 407 on both sides in the front and rear are respectively arranged on the mutually remote sides of the lower rotating plates 401 on both sides in the front and rear.

[0039] The guiding and supporting seats 408 fixedly connected to the lower sides of the barrel covers 4 on both sides in the front and rear are slidably and fittingly abutted and connected to the limiting rods 410 on their respective sides. The inclination limiting seats 407 and the right-angle limiting seats 411 on both sides in the front and rear respectively abut and limit the front and rear sides of the lower rotating plate 401.

[0040] In this embodiment, a lower rotating plate 401 is fixedly connected to the lower end of each cylinder cover 4, and slide rails 10 are fixedly arranged at the four corners of the upper end of the base 1. A rotating shaft 402 is sleeved in the middle of each lower rotating plate 401, and at both ends of the rotating shaft 402, a support pile 403 and a slider 404 are respectively rotationally connected through scroll hinges. The slider 404 is slidably arranged in the slide rail 10 and is fixedly connected to an electric cylinder 405 installed in the slide rail 10. A side seat 409 is also fixedly connected to the upper end of the slide rail 10. A limiting rod 410 is fixedly connected between the left and right two side seats 409 on the same front and rear side, and a guiding support seat 408 is fixedly connected to the lower end of the cylinder cover 4. Angle limiting seats 407 are fixedly connected to the mutually separated sides of the support piles 403 on the front and rear sides through connecting seats 406, and right-angle limiting seats 411 are fixedly connected to the reinforcing ribs 14 at the front and rear ends of the base 1. In this way, when the electric cylinder 405 drives the sliders 404 and the support piles 403 on the front and rear sides to move away from each other, the cylinder cover 4 will move away from the outer cylinder. Then, under the action of the scroll hinge, the cylinder cover 4 will rotate away from each other and be limited by the angle limiting seat 407 on the mutually separated side. As the two cylinder covers 4 continue to move away from each other, the guiding support seats 408 on the two cylinder covers 4 will gradually contact the limiting rods 410 on their respective sides. Then, driven by the limiting rods 410, the cylinder covers 4 on the front and rear sides will rotate towards each other again against the force of the scroll hinge until they rotate to the lower side of the limiting rods 410. In this way, the cylinder cover 4 will also be located below the outer cylinder 3. Therefore, when disassembling, assembling and maintaining the equipment in the outer cylinder 3 and the liquid hydrogen storage tank 6, it will not cause any influence, thus facilitating adjustment and maintenance.

[0041] Embodiment Three:

[0042] Please refer to Figure 1-7 As shown, on the basis of Embodiment One, the present invention provides a technical solution: Each of the array - arranged support seats 501 and collar seats 503 is correspondingly arranged coaxially. The limiting slide rod 504 is slidably sleeved in its respective collar seat 503, and a spring 505 is fixedly connected between the mutually separated ends of the limiting slide rods 504 on the front and rear sides and their respective collar seats 503.

[0043] On the mutually approaching side surfaces of the support seats 501 arranged in an array on the front and rear sides, a top rod 502 is fixedly connected. Each top rod 502 abuts against one end of the limiting slide rod 504 on its respective side. The mutually approaching ends of the limiting slide rods 504 arranged in an array on the front and rear sides are arranged on the mutually approaching side of the collar seats 503 on the front and rear sides, and a connecting block 507 is fixedly connected to this end. The limiting slide rod 504 is fixedly connected to a single - hinge seat 506 through the connecting block 507.

[0044] The mutually close ends of the rotating rods 508 rotatably connected to the single hinge seats 506 on the same axis before and after are jointly rotatably connected with double hinge seats 509. Fixedly connected to the mutually close sides of each double hinge seat 509 are clamping seats 510, which are respectively sleeved and clamped at the four corners of the frame plate 5 in an array.

[0045] In this embodiment, the mutually close side surfaces of the lower rotating plates 401 fixedly connected to the lower ends of the two side cylinder covers 4 are respectively in contact with the right-angle limit seats 411 on the front and rear sides. Then, when the electric cylinder 405 drives the two side cylinder covers 4 to approach each other, the two side cylinder covers 4 will gradually rotate and reset and be limited by the inclination limit seat 407. Until the lower ends of the lower rotating plates 401 on the front and rear sides respectively abut and are clamped with the right-angle limit seats 411, the cylinder cover 4 will gradually rotate from the inclined limit state to the vertical state, and will be covered with the outer cylinder 3 through the rubber sealing ring 13. At the same time, the approach of the two side cylinder covers 4 to each other will drive the ejector rods 402 fixedly connected in an array through the support seats 401 in the cylinder cover 4 to abut against the limit sliding rods 504 slidably sleeved on the front and rear ends of the inner wall of the outer cylinder 3 through the collar seats 503. The limit sliding rods 504 on the front and rear sides approach each other and compress the springs 505 connected between them and the collar seats 503, thereby pushing the single hinge seats 506 fixedly connected to the mutually close sides of the limit sliding rods 504 at the front and rear ends to approach each other, and further pushing the rotating rods 508 rotatably connected thereto to rotate, driving the clamping seats 510 rotatably connected between the mutually close ends of the front and rear sides to gather together, and respectively being sleeved and clamped with the four corners of the frame plate 5, so as to support the middle frame plate 5 to a certain extent, thereby supporting the middle part of the liquid hydrogen storage tank 6 to further ensure the structural strength and the stability in use.

Claims

1. A hydrogen refueling station with liquid hydrogen storage, comprising a base (1), a bracket (2), an outer cylinder (3), a cylinder cover (4), a rack plate (5), a liquid hydrogen storage tank (6), and a pipeline outlet (15). At both ends of each liquid hydrogen storage tank (6), a fastening clamp plate (7) is fixedly sleeved, and mounting seats (8) are fixedly connected in an array on the outer side surface of the fastening clamp plate (7). At the front and rear ends of the inner wall of the outer cylinder (3), collar rings (9) are fixedly sleeved, and the mounting seats (8) are fixedly installed with the collar rings (9) by bolts. It is characterized in that, At the four corners of the upper end face of the base (1), slide rails (10) are fixedly installed, and a support connecting plate (11) is fixedly connected between the mutually remote ends of the slide rails (10) on the front and rear sides. Hydrogen gas detectors (12) are fixedly installed on the inner walls of the two side cylinder covers (4), and rubber sealing rings (13) are fixedly sleeved on the inner edges of the two side cylinder covers (4); A plurality of reinforcing ribs (14) are linearly and arrayedly fixedly connected in the base (1). A lower rotating plate (401) is fixedly connected to the lower end of each cylinder cover (4). A rotating shaft (402) is fixedly sleeved at the middle position of each lower rotating plate (401). Both ends of the rotating shaft (402) are rotatably connected to a support pile (403) through a scroll hinge. The mutually remote ends of the two side support piles (403) are fixedly connected with sliders (404). Each slider (404) is slidably arranged in the slide rail (10) on its respective side. An opening and closing adjustment mechanism is arranged between the slide rail (10) and the cylinder cover (4), and a stabilizing mechanism is also arranged in the outer cylinder (3); Brackets (2) are fixedly connected to the front and rear sides of the upper end face of the base (1), and an outer cylinder (3) is fixedly sleeved through the brackets (2) on the front and rear sides. Cylinder covers (4) are arranged at both the front and rear ends of the outer cylinder (3). The rack plate (5) and the front and rear fastening clamping plates (7) are all sleeved in the outer cylinder (3), and liquid hydrogen storage tanks (6) are fixedly sleeved in an array. A pipeline outlet (15) is arranged at the upper front side of the outer cylinder (3), and pipe valves are arranged at the front ends of all the liquid hydrogen storage tanks (6); The opening and closing adjustment mechanism includes electric cylinders (405), connecting seats (406), inclination limiting seats (407), guiding support seats (408), side seats (409), limiting rods (410), and right-angle limiting seats (411). Electric cylinders (405) are fixedly installed on the inner walls of one side of each slide rail (10). Each electric cylinder (405) is fixedly connected to the slider (404) slidably arranged in its respective slide rail (10). Connecting seats (406) are fixedly connected to the two support piles (403) in the same axial direction. An inclination limiting seat (407) is fixedly connected between the two side connecting seats (406). Guiding support seats (408) are fixedly connected to the lower ends of the mutually remote sides of the two side cylinder covers (4). Side seats (409) are fixedly connected to the upper end faces of each slide rail (10). Limiting rods (410) are fixedly connected between the left and right two side seats (409) on the same front and rear side. Right-angle limiting seats (411) are fixedly connected to the mutually remote sides of the front and rear reinforcing ribs (14); The stabilizing mechanism includes a support base (501), a push rod (502), a collar base (503), a limiting slide rod (504), a spring (505), a single hinge seat (506), a connecting block (507), a rotating rod (508), a double hinge seat (509), and a clamping seat (510). The inner walls of each cylinder cover (4) are fixedly connected with support bases (501) in an array, and a push rod (502) is fixedly connected to the support base (501). The inner walls of the front and rear sides of the outer cylinder (3) are fixedly connected with collar bases (503) in an array. A limiting slide rod (504) is slidably sleeved in each collar base (503), and a spring (505) is fixedly connected between the limiting slide rod (504) and the collar base (503). Connecting blocks (507) are fixedly connected between the mutually approaching ends of the limiting slide rods (504) on the front and rear sides, and a single hinge seat (506) is fixedly installed through the connecting block (507). A rotating rod (508) is rotatably connected to each single hinge seat (506). A double hinge seat (509) is rotatably connected between the mutually approaching ends of the adjacent rotating rods (508) on the front and rear sides, and a clamping seat (510) is fixedly connected to the double hinge seat (509). Each clamping seat (510) is sleeved with the corner of the rack plate (5).

2. The hydrogen refueling station of the liquid hydrogen storage type according to claim 1, characterized in that, The mounting seats (8) fixedly connected to the outer sides of each fastening clamping plate (7) in an array are slidably sleeved in the sleeves (9) on their respective sides. The rubber sealing ring (13) is sleeved and sealed with the front and rear ends of the inner wall of the outer cylinder (3).

3. The hydrogen refueling station with liquid hydrogen storage according to claim 2, characterized in that, Connecting seats (406) are fixedly connected to the mutually remote sides of the support piles (403) on the front and rear sides. Angle limiting seats (407) are fixedly connected between the left and right two connecting seats (406) on the same side of the front and rear sides. The angle limiting seats (407) on the front and rear sides are respectively arranged on the mutually remote sides of the lower rotating plates (401) on the front and rear sides.

4. A liquid hydrogen storage type hydrogen refueling station according to claim 3, characterized in that, The guiding support seats (408) fixedly connected to the lower sides of the cylinder covers (4) on the front and rear sides are slidably abutted and connected with the limiting rods (410) on their respective sides. The angle limiting seats (407) and the right-angle limiting seats (411) on the front and rear sides respectively abut and limit the front and rear sides of the lower rotating plate (401).

5. A liquid hydrogen storage type hydrogen refueling station according to claim 1, characterized in that, The respective support bases (501) and collar bases (503) arranged in an array are coaxially arranged. The limiting slide rod (504) is slidably sleeved in its respective collar base (503). Springs (505) are fixedly connected between the mutually remote ends of the limiting slide rods (504) on the front and rear sides and the collar bases (503) on their respective sides. Push rods (502) are fixedly connected to the mutually approaching side surfaces of the support bases (501) arranged in an array on the front and rear sides. Each push rod (502) abuts against one end of the limiting slide rod (504) on its respective side.

6. The hydrogen refueling station of the liquid hydrogen storage type according to claim 5, characterized in that, One end of each of the limiting sliding rods (504) arranged on the front and rear sides and close to each other is arranged on the side close to each other of the collar seats (503) on the front and rear sides, and a connecting block (507) is fixedly connected to this end. The limiting sliding rod (504) is fixedly connected to a single hinge seat (506) through the connecting block (507).

7. The hydrogen refueling station of the liquid hydrogen storage type according to claim 6, characterized in that, One end of each of the rotating rods (508) rotatably connected to the single hinge seats (506) on the same front and rear axis and close to each other is rotatably connected to a double hinge seat (509). A clamping seat (510) is fixedly connected to one side close to each other of each of the double hinge seats (509), and the four corners of the frame plate (5) are respectively sleeved and clamped in an array.

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