CN117072870A

CN117072870A - Hydrogen storage tank

Info

Publication number: CN117072870A
Application number: CN202311069964.7A
Authority: CN
Inventors: 包秀敏
Original assignee: Wenzhou Gaoqi Hydrogen Energy Technology Co ltd
Current assignee: Wenzhou Gaoqi Hydrogen Energy Technology Co ltd
Priority date: 2023-08-23
Filing date: 2023-08-23
Publication date: 2023-11-17

Abstract

The application relates to the technical field of hydrogen storage equipment and discloses a hydrogen storage tank, which comprises a storage tank body and an open inner tank arranged in the storage tank body in a sliding manner, wherein the storage tank body comprises a fixed tank, a first movable tank and a second movable tank which are respectively and detachably arranged at two sides of the fixed tank, a first buffer piece is detachably arranged at one side end part of the open inner tank, which faces the first movable tank, a second buffer piece is detachably arranged on the inner wall of the second movable tank, fixed rings are respectively arranged at one ends, close to the first movable tank and the second movable tank, of the circumferential side wall of the fixed tank, movable rings are respectively arranged at the circumferential side walls of the first movable tank and the second movable tank, and the movable rings are detachably connected with the adjacent fixed rings through a plurality of mounting assemblies. The application can be independently disassembled and replaced after the first buffer part and the second buffer part are worn, thereby being beneficial to reducing the impact force of the open inner tank on the storage tank body and guaranteeing the structural strength of the storage tank body.

Description

Hydrogen storage tank

Technical Field

The application relates to the technical field of hydrogen storage equipment, in particular to a hydrogen storage tank.

Background

Hydrogen is a simple substance formed by hydrogen element, is colorless, odorless, extremely flammable and poorly soluble in water at normal temperature and pressure, and is usually stored in a steel storage tank.

Among the related art, chinese patent with bulletin number CN211450328U discloses a annotate hydrogen storage tank, it includes storage tank body and single degree of freedom sliding fit setting in this internal uncovered inner tank of storage tank, uncovered inner tank along circumference and the sealed cooperation of storage tank body inner circumference to separate the inner chamber of storage tank body for be used for storing up the cavity I of hydrogen and be used for the cavity II of pressure regulating, uncovered end towards cavity I setting, be provided with the business turn over trachea I of intercommunication cavity I and the business turn over trachea II of intercommunication cavity II on the storage tank body.

The end part of one side of the open inner tank, which is close to the cavity I, is provided with an annular buffer piece, and the annular buffer piece is used for buffering one side of the open inner tank, which is close to the opening of the open inner tank; one side of the storage tank body corresponding to the air inlet and outlet pipe II is provided with a buffer pad, and the buffer pad is used for buffering one side, far away from the opening of the open inner tank, of the open inner tank. When filling or discharging hydrogen, the open inner tank can slide relative to the storage tank body under the action of air pressure, and collide with the storage tank body when the hydrogen is filled or discharged completely. The buffer cushion and the annular buffer piece are blocked between the open inner tank and the storage tank body and play a role in buffering, so that the axial impact of the open inner tank to the storage tank body is reduced.

However, after the above-mentioned hydrogen storage tank is used for a long time, the cushion pad and the annular buffer member inevitably generate loss to weaken the buffering effect due to the repeated impact of the open inner tank, so that the impact force of the open inner tank to the storage tank body is correspondingly increased, and even the structural strength of the storage tank body is influenced, and the improvement is needed.

Disclosure of Invention

The application provides a hydrogen storage tank in order to reduce impact force of an open inner tank on a storage tank body and ensure structural strength of the storage tank body.

The application provides a hydrogen storage tank which adopts the following technical scheme:

the hydrogen storage tank comprises a storage tank body and an open inner tank which is arranged in the storage tank body in a sliding manner, wherein the open inner tank is in sealing fit with the storage tank body, an air inlet and outlet pipe communicated with an inner cavity of the storage tank body is arranged on the storage tank body, the storage tank body comprises a fixed tank, a first movable tank and a second movable tank which are respectively and detachably arranged on two sides of the fixed tank, the open inner tank is positioned in the fixed tank, a storage cavity is formed by enclosing the open inner tank and the first movable tank, and a pressure regulating cavity is formed by enclosing the open inner tank and the second movable tank; the inner tank is provided with first bolster towards dismantling of one side tip of first movable tank, can dismantle on the inner wall of second movable tank and be provided with the second bolster, the circumference lateral wall of fixed tank is provided with solid fixed ring in its one end that is close to first movable tank and second movable tank respectively, the circumference lateral wall of first movable tank and second movable tank is provided with the expansion ring respectively, the expansion ring can dismantle with adjacent solid fixed ring through a plurality of installation component and be connected.

Through adopting above-mentioned technical scheme, when filling or discharging hydrogen, can be by business turn over trachea to the inner chamber of storage tank body aerify or bleed to change the atmospheric pressure size in storage chamber and the pressure regulating chamber, and then make the relative storage tank body of open inner tank slip. The first buffer piece is blocked between the open inner tank and the first movable tank and can play a role in buffering when the open inner tank slides to the first movable tank; the second buffer piece separates and keeps off between open inner tank and second movable tank, and it can play the effect of buffering when open inner tank slides to the second movable tank, and the buffering is effectual.

Because the storage tank body is including dismantling fixed tank, first movable tank and the second movable tank of connection, at first bolster and second bolster by many times collision, cause its buffer performance to weaken the back, operating personnel can be with fixed tank, first movable tank and second movable tank split to take out back with first bolster or second bolster and tear open the change alone, so that the uncovered inner tank produces powerful impact to the storage tank body, be favorable to guaranteeing the structural strength of storage tank body self, extension storage tank body's life.

Optionally, the installation component is including setting up at the installation piece of expansion ring towards fixed ring one side, rotate the pivot of connection in the installation piece, fixed connection is kept away from the stop block of expansion ring one side in the pivot, set up the mounting hole that is used for supplying each installation piece to wear out respectively on the fixed ring, the stop block can rotate to the fixed ring when the installation piece wears to locate the mounting hole and keep away from one side of adjacent expansion ring.

By adopting the technical scheme, when the fixed tank and the first movable tank or the second movable tank are assembled, the stop block is firstly turned to one side of the installation block far away from the movable ring, and the circumferential edge of the stop block does not exceed the installation block; penetrating the mounting blocks into the corresponding mounting holes until the stop blocks move out of the fixing rings; the stop is then rotated to a side remote from the mounting block so that the stop rotates against the retaining ring. The stop block can limit the installation block to move out of the installation hole, so that the movable ring and the fixed ring are not easy to separate, and the fixed ring and the movable ring are detachably connected.

Optionally, one side of fixed ring that keeps away from adjacent expansion ring is provided with the equal and one-to-one first fixture block of quantity of installing, offered on the stop block be used for with first fixture block joint complex draw-in groove.

Through adopting above-mentioned technical scheme, after the installation piece penetrated the mounting hole, operating personnel can rotate the stop block to the one side that is close to first fixture block for first fixture block and the mutual joint of draw-in groove, thereby utilize first fixture block to improve the stability of stop block, in order to avoid the stop block to remove with the solid fixed ring relatively when receiving vibrations, be favorable to improving the stop block to the spacing effect of solid fixed ring and expansion ring.

Optionally, the lateral wall that the expansion ring was kept away from to the installation piece is provided with the second fixture block of elastic material, the interval of second fixture block and pivot equals the interval of draw-in groove and pivot, works as the stop block rotates to the installation piece and keeps away from one side of expansion ring, the draw-in groove can cooperate with second fixture block joint.

Through adopting above-mentioned technical scheme, before wearing to establish the installation piece, operating personnel can rotate the stop block to the one side that is close to the second fixture block for second fixture block and draw-in groove joint each other, thereby with the stop block location at the position that peripheral edge does not surpass the installation piece, with the influence of stop block penetration mounting hole.

Optionally, a plurality of positioning components are arranged on one side, facing the adjacent movable ring, of the fixed ring, each positioning component comprises an extending block arranged on the fixed ring, a positioning block connected to the extending block in a sliding manner, and a positioning spring for driving the positioning block to extend out of the extending block, and an extending groove matched with the positioning block in a sliding manner is formed in the extending block; one end of the positioning block, which is far away from the extension block, is provided with a positioning inclined plane, the positioning inclined plane is positioned on one side of the positioning block, which is far away from the fixed ring, and the circumferential side wall of the movable ring is provided with a positioning groove for the positioning block to slide and extend in.

Through adopting above-mentioned technical scheme, when connecting expansion ring and adjacent solid fixed ring, at the in-process that removes the expansion ring to solid fixed ring, the border of expansion ring can be earlier with the contact of location inclined plane to promote the locating piece to the extension piece, make the locating piece move into the extension groove, the compression deformation of location spring and produce elasticity. When the movable ring moves to align the positioning groove with the positioning block, the positioning block can move into the positioning groove under the action of the elasticity of the positioning spring, so that the movable ring and the fixed ring are further limited to move relatively, and the structural stability of the storage tank body is further improved.

Optionally, the number of the positioning components is equal to that of the mounting components, the positioning components and the mounting components are in one-to-one correspondence, and the movable ring is provided with a linkage component for linking the positioning components and the mounting components; when the mounting block penetrates through the mounting hole and the stop block rotates to be separated from the fixed ring, the positioning block can move out of the positioning groove under the action of the linkage assembly.

Through adopting above-mentioned technical scheme, when split fixed tank and first movable tank, second movable tank, with the stop block change to with the fixed ring separation back, the locating piece can be shifted out the constant head tank voluntarily under the action of linkage subassembly, has saved the trouble that operating personnel shifted out the locating piece by hand, easy and simple to handle.

Optionally, the locating slot is far away from the slot wall of the opening of the locating slot and is provided with a linkage slot, the installation block is provided with a sliding hole communicated with the linkage slot, the linkage assembly comprises a push rod arranged in the sliding hole in a sliding way, a linkage block arranged in the linkage slot in a sliding way and a pushing spring used for driving the push rod to extend out of the installation block, one end of the push rod far away from the linkage block is in a round table shape, one ends of the linkage block and the push rod close to each other are respectively provided with a guide inclined plane, the movement direction of the linkage block along the linkage slot is parallel to the movement direction of the locating block, and the movement direction of the push rod along the sliding hole is perpendicular to the movement direction of the locating block; when the pushing spring drives the push rod to extend out of the mounting block, one end of the push rod, which is far away from the linkage block, is positioned on the rotating path of the stop block.

Through adopting above-mentioned technical scheme, when expansion ring and adjacent solid fixed ring are connected in place, the locating piece is located the constant head tank, and the linkage piece receives the promotion of locating piece and can move to the one side of keeping away from the constant head tank for the push rod moves and stretches out the installation piece to the stop block. When the movable ring and the fixed ring are required to be detached, if the stop block rotates to one side close to the installation block, the push rod is positioned on the rotating path of the stop block, and in the rotating process of the stop block, the push rod is stressed to move towards the linkage block, so that the linkage block pushes the positioning block out of the positioning groove, and the quick unlocking of the positioning block to the movable ring is realized, and the linkage is good. In addition, when the stop block moves to a position where the circumferential edge does not exceed the mounting block, the push rod can abut against the stop block under the action of the pushing spring, so that the stop block is less prone to moving relative to the mounting block.

Optionally, a linkage spring is arranged between the linkage block and the groove wall of the linkage groove in an abutting mode, and the linkage spring is used for driving the linkage block to move in a direction away from the positioning groove.

Through adopting above-mentioned technical scheme, the linkage spring has the trend of order about the linkage piece to the movement of gangway for the difficult relative expansion ring of linkage piece removes, in order to avoid the linkage piece to influence the locating piece and stretch into the constant head tank.

Optionally, the side wall of first movable tank and second movable tank towards the fixed tank has all seted up the seal groove, inlay in the seal groove and be equipped with the sealing washer.

Through adopting above-mentioned technical scheme, after fixed tank, first movable tank and second movable tank equipment put in place, sealing washer butt sets up between fixed tank and first movable tank, or fixed tank and second movable tank, plays sealed leak protection's effect, helps improving the sealing performance of storage tank body.

Optionally, the first buffer piece comprises a buffer pad connected to the open inner tank, and a buffer groove for clamping in the side wall of the open inner tank is formed in the buffer pad; the second buffer piece comprises buffer air bags adhered to the second movable tank through a plurality of groups of magic tapes, and the plurality of groups of the magic tapes are uniformly distributed along the central axis of the second movable tank in the circumferential direction.

Through adopting above-mentioned technical scheme, the blotter is fixed through the mode of open inner tank and buffer tank gomphosis, has simple structure, easy dismounting's effect. The second cushioning member adopts the buffering gasbag to make, and after the buffering gasbag was released because of undergoing frequent striking, the accessible was inflated to the buffering gasbag mode for the buffering gasbag resumes the original state, and buffering effect of buffering gasbag is good, long service life. In addition, the buffer air bag is adhered to the second movable tank through the magic tape, so that the adhesive firmness is high, after the wall of the buffer air bag is thinned, the buffer air bag can be independently detached and replaced in a tearing mode through the magic tape, and special tools such as a screwdriver are not needed during detachment and replacement, so that the operation is simple and convenient.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the storage tank body comprises a fixed tank, a first movable tank and a second movable tank which are detachably connected, after the first buffer piece and the second buffer piece are worn, the fixed tank, the first movable tank and the second movable tank can be detached so as to take out the first buffer piece and the second buffer piece and independently detach and replace the first buffer piece and the second buffer piece, so that the impact force of the open inner tank on the storage tank body is reduced, and the structural strength of the storage tank body is ensured;

2. when the fixed tank, the first movable tank and the second movable tank are assembled, the movable ring and the fixed ring can be limited to be separated by the stop block only by penetrating the installation block into the installation hole and then rotating the stop block to be propped against the fixed ring, so that the disassembly and assembly are convenient; the positioning block can extend into the positioning groove under the action of the positioning spring so as to further improve the connection stability of the movable ring and the fixed ring;

3. when the clamping groove is clamped with the first clamping block, the stop block can be positioned in a state of propping against the fixed ring, so that the limiting effect of the stop block on the movable ring is improved; when the clamping groove is clamped with the second clamping block, the stop block can be positioned in a state that the circumferential edge does not exceed the mounting block, and the mounting block cannot be affected to penetrate into the mounting hole.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of an embodiment of the present application.

Fig. 3 is an enlarged schematic view at a in fig. 2.

Fig. 4 is a schematic structural view of a second buffer member according to an embodiment of the present application.

Fig. 5 is a schematic view of a partial explosion of an embodiment of the present application.

Fig. 6 is a schematic view of the structure of the rotation shaft and the stopper in the embodiment of the present application.

Fig. 7 is an enlarged schematic view at B in fig. 2.

Fig. 8 is a schematic structural view of a positioning block, a positioning spring and a linkage assembly according to an embodiment of the present application.

Reference numerals illustrate:

1. a storage tank body; 11. a fixed tank; 12. a first movable tank; 13. a second movable tank; 14. a storage chamber; 15. a pressure regulating cavity; 16. an air inlet and outlet pipe; 17. a first connection pipe; 18. a second connection pipe; 19. sealing grooves; 2. an open inner tank; 21. an annular groove; 22. an annular seal; 3. a support leg; 4. a first buffer member; 41. a cushion pad; 42. a buffer tank; 5. a second buffer member; 51. a buffer air bag; 52. a magic tape; 6. a fixing ring; 61. a mounting hole; 62. a first clamping block; 63. a positioning assembly; 631. an extension block; 632. a positioning block; 633. a positioning spring; 634. an extension groove; 635. positioning an inclined plane; 7. a movable ring; 71. a positioning groove; 72. a linkage assembly; 721. a push rod; 722. a linkage block; 723. a pushing spring; 724. a pressing part; 725. a pushing part; 726. a guide slope; 73. a linkage groove; 74. a linkage spring; 8. a mounting assembly; 81. a mounting block; 811. a second clamping block; 82. a rotating shaft; 83. a stopper; 831. a clamping groove; 84. a sliding hole; 841. pressing a groove; 842. pushing holes; 9. and (3) sealing rings.

Detailed Description

The application is described in further detail below with reference to fig. 1-8.

The embodiment of the application discloses a hydrogen storage tank.

Referring to fig. 1 and 2, the hydrogen storage tank includes a tank body 1, an open inner tank 2 slidably disposed in the tank body 1, and a plurality of legs 3 fixedly disposed on the tank body 1, the tank body 1 includes a fixed tank 11, a first movable tank 12 and a second movable tank 13 detachably disposed on both sides of the fixed tank 11, and if the view angle is taken as an example in the drawing, the first movable tank 12 is connected to the upper side of the fixed tank 11, the second movable tank 13 is connected to the lower side of the fixed tank 11, the open inner tank 2 is hermetically connected to the fixed tank 11, and the legs 3 are fixedly connected to the second movable tank 13.

Referring to fig. 2, a storage chamber 14 is formed between the open inner tank 2 and the first movable tank 12, a pressure regulating chamber 15 is formed between the open inner tank 2 and the second movable tank 13, the storage chamber 14 and the pressure regulating chamber 15 are independent of each other, and the open side of the open inner tank 2 is arranged toward the storage chamber 14. The first movable tank 12 and the second movable tank 13 are both connected with an air inlet and outlet pipe 16, wherein the air inlet and outlet pipe 16 on the first movable tank 12 is communicated with the storage cavity 14, the air inlet and outlet pipe 16 on the second movable tank 13 is communicated with the pressure regulating cavity 15, and the air inlet and outlet pipe 16 can be used for inflating or deflating when in use so as to realize the filling or the discharging of hydrogen.

Referring to fig. 2, the first movable tank 12 and the second movable tank 13 are further communicated with a first connecting pipe 17 for connecting a pressure gauge and a second connecting pipe 18 for connecting a safety valve, the arrangement of the first connecting pipe 17 is beneficial to monitoring the inner cavity pressure of the storage tank body 1, and the arrangement of the second connecting pipe 18 is beneficial to improving the safety performance of the storage tank body 1.

Referring to fig. 2 and 3, three annular grooves 21 are formed in the circumferential side wall of the open inner tank 2, annular sealing elements 22 are fixedly embedded in each annular groove 21, and the annular sealing elements 22 are mutually abutted with the circumferential inner wall of the fixed tank 11, so that circumferential sealing is formed between the open inner tank 2 and the fixed tank 11. It should be noted that, the annular seal 22 in this embodiment is preferably a rubber ring, and in other embodiments, the annular seal 22 may be made of other materials.

Referring to fig. 2 and 3, the first buffer member 4 is detachably disposed at one side end of the open inner tank 2 facing the first movable tank 12, the first buffer member 4 includes a buffer pad 41 made of rubber, an annular buffer groove 42 is formed at the side wall of the buffer pad 41 facing the open inner tank 2, and one side end of the open inner tank 2 is clamped in the buffer groove 42. The first buffer member 4 plays a role in buffering when the open inner tank 2 moves to the first movable tank 12, and is beneficial to reducing the axial impact of the open inner tank 2 to the first movable tank 12.

Referring to fig. 2 and 4, the second buffer member 5 is detachably arranged on the inner side wall of the second movable tank 13, the second buffer member 5 comprises a buffer air bag 51, the buffer air bag 51 is adhered to the second movable tank 13 through a plurality of groups of magic tapes 52, and the plurality of groups of magic tapes 52 are uniformly distributed along the central axis of the second movable tank 13 in the circumferential direction. The second buffer member 5 plays a role in buffering when the open inner tank 2 moves to the second movable tank 13, and is beneficial to reducing the impact of the open inner tank 2 to the second movable tank 13.

Referring to fig. 5, the circumferential side walls of the fixed tank 11 are respectively and fixedly provided with a fixed ring 6 at one ends thereof close to the first movable tank 12 and the second movable tank 13, the first movable tank 12 and the second movable tank 13 are respectively and fixedly provided with a movable ring 7 at one ends thereof close to the fixed tank 11, the movable ring 7 and the adjacent fixed ring 6 are respectively detachably connected through a plurality of mounting assemblies 8, and in this embodiment, four groups of structures thereof are schematically provided with the mounting assemblies 8.

Referring to fig. 5 and 6, each set of mounting assemblies 8 includes a mounting block 81, a rotating shaft 82 rotatably connected to one end of the mounting block 81, and a stop block 83 fixedly connected to one side of the rotating shaft 82 away from the movable ring 7, wherein the mounting block 81 is integrally formed on one side of the movable ring 7 facing the fixed ring 6, the rotating shaft 82 is in a circular truncated cone shape, one end with a larger diameter is close to the movable ring 7, and the stop block 83 can be rotated to a state that the circumferential edge does not exceed the mounting block 81.

Referring to fig. 5, the fixing ring 6 is provided with mounting holes 61 which are equal in number and correspond to the mounting assemblies 8 one by one, and the mounting blocks 81 in each mounting assembly 8 can be respectively inserted into the corresponding mounting holes 61. After the mounting block 81 is penetrated in place, an operator can rotate the stop block 83 to a state of abutting against the fixed ring 6, so that the stop block 83 is used for limiting the mounting block 81 to move out of the mounting hole 61, and stable connection between the movable ring 7 and the fixed ring 6 is realized.

Referring to fig. 5 and 6, in order to further improve the limiting effect of the stop block 83, a clamping groove 831 is formed in the side wall of the stop block 83 facing the movable ring 7, and the side of the fixed ring 6 away from the adjacent movable ring 7 is provided with first clamping blocks 62 which are equal in number and correspond to each other, and the first clamping blocks 62 are made of a material capable of generating elastic deformation and are clamped and matched with the clamping grooves 831.

Referring to fig. 5 and 6, further, in order to improve stability of the stopper 83 when the mounting block 81 penetrates into the mounting hole 61, a second clamping block 811 is provided on a side wall of the mounting block 81 far away from the movable ring 7, the second clamping block 811 is identical to the first clamping block 62 in shape, material and size, and when the clamping groove 831 is clamped with the second clamping block 811, the stopper 83 is positioned at a position where the circumferential edge does not exceed the mounting block 81, so that penetration of the mounting block 81 into the mounting hole 61 is not affected.

Referring to fig. 7, in order to further improve the connection strength between the movable ring 7 and the fixed ring 6, a plurality of positioning assemblies 63 are provided on one side of the fixed ring 6 facing the adjacent movable ring 7, and the number of the positioning assemblies 63 is equal to that of the mounting assemblies 8 and corresponds to one. Each set of positioning components 63 comprises an extending block 631 integrally formed on the fixed ring 6, a positioning block 632 slidingly connected to the extending block 631, and a positioning spring 633 for driving the positioning block 632 to extend out of the extending block 631, wherein the extending block 631 is provided with an extending groove 634 extending horizontally towards the side wall of the fixed tank 11, the positioning block 632 is slidingly arranged in the extending groove 634, one end of the positioning spring 633 is fixedly connected to the positioning block 632, and the other end is fixedly connected to the groove wall of the extending groove 634 far away from the opening. The end of the positioning block 632 remote from the extension block 631 is provided with a positioning inclined surface 635, and the positioning inclined surface 635 is positioned on the side of the positioning block 632 remote from the fixed ring 6. When the positioning spring 633 is in a natural state, the end of the positioning block 632 provided with the positioning inclined surface 635 is located outside the extension groove 634.

Referring to fig. 7, the circumferential side wall of the movable ring 7 is provided with positioning slots 71 corresponding to the positioning assemblies 63 in number and one-to-one, and each positioning slot 71 can be respectively provided for the corresponding positioning block 632 to slide and extend into, so as to further limit the back movement of the fixed ring 6 and the movable ring 7.

Referring to fig. 7 and 8, the movable ring 7 is provided with the same number of corresponding linkage members 72 as the positioning members 63, and the linkage members 72 are used to link the positioning members 63 with the mounting members 8. The positioning groove 71 is provided with a linkage groove 73 on a groove wall far away from the opening of the positioning groove, the mounting block 81 is provided with a sliding hole 84 communicated with the linkage groove 73, and the sliding hole 84 is positioned between the rotating shaft 82 and the second clamping block 811. Specifically, the slide hole 84 includes a pressing groove 841, and a pushing hole 842 communicating with a side of the pressing groove 841 near the linking groove 73, and a width of the pushing hole 842 is smaller than a width of the relief groove.

Referring to fig. 7 and 8, the link assembly 72 includes a push rod 721, a link block 722 slidably disposed in the link groove 73, and a push spring 723 connected between the push rod 721 and the mounting block 81, the link block 722 being parallel to the moving direction of the positioning block 632 along the moving direction of the link groove 73. It should be noted that, in the present embodiment, the linkage block 722 is T-shaped, and a linkage spring 74 is disposed between the linkage block 722 and the wall of the linkage groove 73, which is close to the positioning groove 71, and when the linkage spring 74 is in a natural state, the linkage block 722 is located in the linkage groove 73, that is, the linkage spring 74 has a tendency to drive the linkage block 722 to move in a direction away from the positioning groove 71.

Referring to fig. 7 and 8, the push rod 721 includes a truncated cone-shaped pressing portion 724 and a pushing portion 725 integrally formed on a side of the pressing portion 724 facing the linkage block 722, the pressing portion 724 is slidably disposed in the pressing groove 841, the pushing portion 725 is slidably disposed in the pushing hole 842, and the push rod 721 is perpendicular to the moving direction of the positioning block 632 along the moving direction of the sliding hole 84. One end of the pushing spring 723 is fixed to the pressing portion 724, and the other end is fixed to a groove wall of the pressing groove 841 near the pushing hole 842. When the pushing spring 723 is in a natural state, the pressing portion 724 protrudes out of the mounting block 81 and is located on the rotational path of the stopper 83. The end of the linkage block 722, which is close to the pushing part 725, is provided with a guiding inclined plane 726, and the guiding inclined plane 726 of the linkage block 722 is parallel to the guiding inclined plane 726 of the pushing part 725.

Referring to fig. 7, when the fixed ring 6 and the movable ring 7 are connected in place, the positioning block 632 is located in the positioning groove 71, the linkage block 722 is located in the linkage groove 73, and the pressing portion 724 protrudes from the mounting block 81. When the fixed ring 6 and the movable ring 7 need to be detached, if the stop block 83 rotates towards the second clamping block 811, the pressing portion 724 is pushed by the stop block 83 to move towards the linkage block 722, so that the guide inclined surface 726 of the pushing portion 725 and the guide inclined surface 726 of the linkage block 722 are pressed against each other, and the linkage block 722 pushes the positioning block 632 out of the positioning groove 71, so that the mounting block 81 can be conveniently moved out of the mounting hole 61 later.

Referring to fig. 7, in order to further improve the sealability of the tank body 1, sealing grooves 19 are formed in the side walls of the first movable tank 12 and the second movable tank 13 facing the fixed tank 11, and sealing rings 9 are fixedly embedded in the sealing grooves 19, and the sealing rings 9 play a role in sealing and leakage prevention.

The implementation principle of the hydrogen storage tank provided by the embodiment of the application is as follows: when the storage tank body 1 is assembled, the stop blocks 83 in the mounting assemblies 8 are rotated to enable the clamping grooves 831 to be clamped with the second clamping blocks 811, then the first movable tank 12 and the second movable tank 13 are sequentially moved towards the fixed tank 11, the mounting blocks 81 respectively penetrate out of the corresponding mounting holes 61, and then the stop blocks 83 are rotated to enable the clamping grooves 831 to be clamped with the first clamping blocks 62, so that the stop blocks 83 can be utilized to limit the mounting blocks 81 to be separated from the mounting holes 61, and the detachable connection of the fixed ring 6 and the movable ring 7 can be realized. After being connected in place, the positioning block 632 can extend into the adjacent positioning groove 71 under the action of the positioning spring 633, so as to further improve the connection stability of the fixed ring 6 and the movable ring 7.

When hydrogen is filled or discharged, the open inner tank 2 slides relative to the tank body 1 and generates axial impact to the first buffer member 4 or the second buffer member 5. The storage tank body 1 comprises a fixed tank 11, a first movable tank 12 and a second movable tank 13 which are detachably connected, and after the first buffer piece 4 and the second buffer piece 5 are worn due to frequent impact, the fixed tank 11, the first movable tank 12 and the second movable tank 13 can be detached so as to independently detach and replace the first buffer piece 4 and the second buffer piece 5, thereby reducing the impact force of the open inner tank 2 on the storage tank body 1 and guaranteeing the structural strength of the storage tank body 1.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims

1. The utility model provides a hydrogen holding vessel, includes storage tank body (1), slides and sets up open inner tank (2) in storage tank body (1), open inner tank (2) and storage tank body (1) sealing fit, be provided with on storage tank body (1) and pass in and out trachea (16) rather than the inner chamber intercommunication, its characterized in that: the storage tank body (1) comprises a fixed tank (11), a first movable tank (12) and a second movable tank (13) which are respectively and detachably arranged at two sides of the fixed tank (11), the open inner tank (2) is positioned in the fixed tank (11), a storage cavity (14) is formed by enclosing the open inner tank (2) and the first movable tank (12), and a pressure regulating cavity (15) is formed by enclosing the open inner tank (2) and the second movable tank (13); the utility model discloses a movable tank, including open inner tank (2), first movable tank (12) and second movable tank (13), open inner tank (2) is provided with first bolster (4) towards dismantling one side tip of first movable tank (12), can dismantle on the inner wall of second movable tank (13) and be provided with second bolster (5), the circumference lateral wall of fixed tank (11) is provided with solid fixed ring (6) respectively in its one end that is close to first movable tank (12) and second movable tank (13), the circumference lateral wall of first movable tank (12) and second movable tank (13) is provided with expansion ring (7) respectively, expansion ring (7) can dismantle with adjacent solid fixed ring (6) through a plurality of installation component (8) and be connected.

2. The hydrogen storage tank of claim 1 wherein: the installation component (8) is including setting up installation piece (81) in expansion ring (7) towards fixed ring (6) one side, rotate pivot (82) of connecting in installation piece (81), fixed connection keep away from stop block (83) in expansion ring (7) one side in pivot (82), set up on fixed ring (6) and be used for supplying each installation piece (81) to wear out mounting hole (61) respectively, stop block (83) can rotate to one side that adjacent expansion ring (7) was kept away from to fixed ring (6) when installation piece (81) were worn to locate mounting hole (61).

3. The hydrogen storage tank of claim 2 wherein: the fixed ring (6) is provided with first fixture blocks (62) which are equal to the number of the installed pieces and correspond to each other one by one on one side far away from the adjacent movable rings (7), and the stop block (83) is provided with a clamping groove (831) which is used for being matched with the first fixture blocks (62) in a clamping mode.

4. A hydrogen storage tank according to claim 3, wherein: the side wall that loose collar (7) was kept away from to installation piece (81) is provided with second fixture block (811) of elastic material, the interval of second fixture block (811) and pivot (82) equals the interval of draw-in groove (831) and pivot (82), when installation piece (81) were kept away from to one side of loose collar (7) in stop block (83), draw-in groove (831) can cooperate with second fixture block (811) joint.

5. The hydrogen storage tank of claim 2 wherein: a plurality of positioning assemblies (63) are arranged on one side, facing the adjacent movable ring (7), of the fixed ring (6), each positioning assembly (63) comprises an extending block (631) arranged on the fixed ring (6), a positioning block (632) connected to the extending block (631) in a sliding mode, and a positioning spring (633) used for driving the positioning block (632) to extend out of the extending block (631), and an extending groove (634) in sliding fit with the positioning block (632) is formed in the extending block (631); one end of the locating block (632) far away from the extension block (631) is provided with a locating inclined plane (635), the locating inclined plane (635) is located at one side of the locating block (632) far away from the fixed ring (6), and a locating groove (71) for the locating block (632) to slide and stretch in is formed in the circumferential side wall of the movable ring (7).

6. The hydrogen storage tank of claim 5 wherein: the positioning assemblies (63) are equal to the mounting assemblies (8) in number and correspond to each other one by one, and the movable ring (7) is provided with linkage assemblies (72) for linking the positioning assemblies (63) and the mounting assemblies (8); when the mounting block (81) is arranged in the mounting hole (61) in a penetrating mode and the stop block (83) rotates to be separated from the fixed ring (6), the positioning block (632) can move out of the positioning groove (71) under the action of the linkage assembly (72).

7. The hydrogen storage tank of claim 6 wherein: the positioning groove (71) is far away from the groove wall of the opening of the positioning groove (71), a linkage groove (73) is formed in the mounting block (81), a sliding hole (84) which is communicated with the linkage groove (73) is formed in the mounting block, the linkage assembly (72) comprises a push rod (721) which is arranged in the sliding hole (84) in a sliding mode, a linkage block (722) which is arranged in the linkage groove (73) in a sliding mode, and a pushing spring (723) which is used for driving the push rod (721) to extend out of the mounting block (81), one end of the push rod (721) far away from the linkage block (722) is in a circular truncated cone shape, guide inclined planes (726) are respectively formed in one ends, close to each other, of the linkage block (722) and the push rod (721) are parallel to the moving direction of the positioning block (632) along the moving direction of the linkage groove (73), and the moving direction of the push rod (721) along the sliding hole (84) is perpendicular to the moving direction of the positioning block (632); when the pushing spring (723) drives the push rod (721) to extend out of the mounting block (81), one end of the push rod (721) away from the linkage block (722) is located on the rotating path of the stop block (83).

8. The hydrogen storage tank of claim 7 wherein: a linkage spring (74) is arranged between the linkage block (722) and the groove wall of the linkage groove (73) in an abutting mode, and the linkage spring (74) is used for driving the linkage block (722) to move in a direction away from the positioning groove (71).

9. The hydrogen storage tank of claim 1 wherein: the side walls of the first movable tank (12) and the second movable tank (13) facing the fixed tank (11) are provided with sealing grooves (19), and sealing rings (9) are embedded in the sealing grooves (19).

10. The hydrogen storage tank of claim 1 wherein: the first buffer piece (4) comprises a buffer pad (41) connected to the open inner tank (2), and a buffer groove (42) for clamping in the side wall of the open inner tank (2) is formed in the buffer pad (41); the second buffer piece (5) comprises buffer air bags (51) adhered to the second movable tank (13) through a plurality of groups of magic tapes (52), and the plurality of groups of the magic tapes (52) are uniformly distributed along the central axis of the second movable tank (13) in the circumferential direction.