CN115447889A

CN115447889A - Hydrogen cylinder storage device

Info

Publication number: CN115447889A
Application number: CN202211157064.3A
Authority: CN
Inventors: 刘周斌; 田梁玉; 陈铁义; 谢知寒; 方芹; 王澍; 魏文力; 徐丹露; 缪宁杰; 张志亮; 杨焘; 沈俊
Original assignee: Innovation And Entrepreneurship Center Of State Grid Zhejiang Electric Power Co ltd; Beijing Institute of Technology BIT
Current assignee: Innovation And Entrepreneurship Center Of State Grid Zhejiang Electric Power Co ltd; Beijing Institute of Technology BIT
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2022-12-09

Abstract

The application discloses hydrogen cylinder storage device relates to hydrogen warehousing and transportation technical field, includes: the sealing assembly comprises a plurality of sealing shaft rings which are arranged on the inner side walls of the lower die body and the upper die body in a staggered mode, the two adjacent sealing shaft rings on the lower die body and the upper die body are in clearance fit, and two ends of each sealing shaft ring are higher than end planes of the lower die body and the upper die body; a sealing groove and an air guide cavity are sequentially distributed on one side, far away from the lower die body or the upper die body, of the sealing shaft collar from top to bottom, a connecting rod is movably inserted between the sealing groove and the air guide cavity, the outer end of the connecting rod is connected with a rubber sealing strip located in the sealing groove, and the inner end of the connecting rod is connected with a main piston arranged in the air guide cavity; the sealing assembly also includes an edge banding member. The device can improve the overall shock resistance of the hydrogen cylinder and improve the safety of the hydrogen cylinder in the storage and transportation processes.

Description

Hydrogen cylinder storage device

Technical Field

The invention relates to the technical field of hydrogen storage and transportation, in particular to a hydrogen cylinder storage device.

Background

The storage and transportation technology is one of important factors for restricting the large-scale development of hydrogen energy, and the key for efficiently utilizing hydrogen is the storage and transportation of hydrogen. At present, the hydrogen storage technology mainly comprises solid hydrogen storage, high-pressure gaseous hydrogen storage, liquid hydrogen storage, organic liquid hydrogen storage and the like, hydrogen storage and transportation mainly comprises high-pressure gaseous hydrogen storage, high-pressure gaseous hydrogen storage charging and discharging speed is high, but potential safety hazard coefficient is high, the low-temperature liquid hydrogen storage technology has the defects of large difficulty coefficient, high liquefaction cost, high energy consumption, high cost of heat insulation materials and the like, the solid hydrogen storage mode has obvious advantages, but the technical problems still exist at present, and the solid hydrogen storage mode has a good development prospect in the long term.

Most of common hydrogen storage bottles on the market at present are winding structure bottles formed by compounding metal bottles or non-metal materials, and in the hydrogen storage and transportation process, because friction and impact are continuously generated during transportation of conventional bottles, the bottles are damaged after long-term use, and are easy to crack and explode, so that great potential safety hazards exist.

Disclosure of Invention

In view of the shortcomings of the prior art, an object of the present invention is to provide a hydrogen cylinder storage device to solve the above problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme:

a hydrogen cylinder storage device, comprising:

the support component comprises two supports which are arranged oppositely, and guide rods are obliquely distributed at two ends of each support;

the shell assembly comprises a lower die body and an upper die body which are arranged between the two brackets and are detachably connected, sleeve rods are uniformly distributed at two ends of the lower die body and the upper die body, sliding pieces which are elastically connected with the sleeve rods in a sliding manner are arranged at the outer ends of the sleeve rods, and the outer ends of the sliding pieces are also elastically connected with the guide rods in a sliding manner;

the sealing assembly comprises a plurality of sealing shaft rings which are arranged on the inner side walls of the lower die body and the upper die body in a staggered mode, the two adjacent sealing shaft rings on the lower die body and the upper die body are in clearance fit, and two ends of each sealing shaft ring are higher than the end planes of the lower die body and the upper die body; a sealing groove and an air guide cavity are sequentially arranged on one side, away from the lower die body or the upper die body, of the sealing collar from top to bottom, a connecting rod is movably inserted between the sealing groove and the air guide cavity, the outer end of the connecting rod is connected with a rubber sealing strip positioned in the sealing groove, and the inner end of the connecting rod is connected with a main piston arranged in the air guide cavity;

and the edge sealing components are arranged at two ends of the sealing collar and are used for movably sealing the two adjacent sealing collars.

Preferably, the sealing assembly further comprises two auxiliary cavities respectively arranged on two sides of the bottom of the sealing collar, the two auxiliary cavities are communicated with the air guide cavity, an auxiliary piston is further arranged in each auxiliary cavity, and the auxiliary piston is connected with the auxiliary cavities in a sliding mode through elastic pieces arranged in the auxiliary cavities.

Preferably, the edge sealing member comprises a sealing block, the sealing block is elastically and slidably arranged in a transverse groove at the tail end of the sealing collar, magnetic parts are further arranged in the sealing block, and the polarities of the two adjacent magnetic parts are matched.

Preferably, a limiting assembly is further arranged between the lower die body and the upper die body, the limiting assembly comprises a limiting rod and two return springs, the limiting rod is movably inserted between the lower die body and the upper die body, and the two return springs are respectively sleeved at two ends of the limiting rod.

Preferably, the outer end faces of the two brackets are provided with straight cut edges, so that the integral outer end faces of the two brackets are in a rectangular structure.

Preferably, the both ends of die body all are equipped with the catching groove down, the both ends of going up the die body all be equipped with catching groove matched with retaining member.

Preferably, each said sealing collar array is arranged on the inner side walls of said lower and upper casings.

Compared with the prior art, the invention has the beneficial effects that:

through arranging the lower die body and the upper die body which can be movably clamped and locked on the hydrogen cylinder and the plurality of adjacent sealing ring collars which are arranged on the inner side walls of the lower die body and the upper die body in a staggered manner, a plurality of independent cavities can be formed outside the hydrogen cylinder body, so that hydrogen leakage can be prevented, and the protection effect of the hydrogen cylinder body can be improved; furthermore, the support members which are elastically arranged outside the lower die body and the upper die body can improve the overall shock resistance of the hydrogen cylinder storage device and improve the safety of the hydrogen cylinder in the storage and transportation processes.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a hydrogen cylinder storage device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a portion of the lower mold body of FIG. 1;

FIG. 3 is a cross-sectional structural view of the seal assembly of FIG. 1;

FIG. 4 is a schematic side cross-sectional view of a portion of the seal assembly of FIG. 1;

FIG. 5 is an enlarged view of A in FIG. 4;

FIG. 6 is a perspective view of a portion of the lower mold body and seal assembly of FIG. 1.

Reference numerals are as follows: 1-bracket component, 101-bracket, 102-guide rod, 103-straight cutting edge, 2-shell component, 201-lower die body, 202-upper die body, 203-loop bar, 204-sliding piece, 205-catching groove, 206-locking piece, 3-sealing component, 301-sealing collar, 302-sealing groove, 303-sealing strip, 304-sealing edge, 305-air guide cavity, 306-connecting rod, 307-main piston, 308-auxiliary cavity, 309-elastic piece, 310-auxiliary piston, 4-sealing edge component, 401-transverse groove, 402-sealing block, 403-magnetic piece, 5-limiting component, 501-limiting rod and 502-reset spring.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Referring to fig. 1-6, fig. 1 is a schematic cross-sectional view of a hydrogen cylinder storage device according to an embodiment of the invention; FIG. 2 is a schematic cross-sectional view of a portion of the lower mold body of FIG. 1;

FIG. 3 is a cross-sectional structural view of the seal assembly of FIG. 1; FIG. 4 is a side cross-sectional view of a portion of the seal assembly of FIG. 1; FIG. 5 is an enlarged view of A in FIG. 4; fig. 6 is a perspective view of the lower mold body and the sealing assembly of fig. 1.

The hydrogen cylinder storage device of the present embodiment includes a support member 1, which includes two supports 101 disposed opposite to each other, and guide rods 102 are disposed at two ends of the supports 101.

The device also comprises a shell component 2 which comprises a lower die body 201 and an upper die body 202 which are arranged between the two brackets 101 and can be detachably connected, loop bars 203 are uniformly distributed at two ends of the lower die body 201 and the upper die body 202, sliding pieces 204 which are elastically connected with the loop bars 203 in a sliding manner are arranged at the outer ends of the loop bars 203, and the outer ends of the sliding pieces 204 are also elastically connected with the guide rods 102 in a sliding manner. The elastic sliding connection is realized by elastic members such as springs, and the sliding connection can be realized by sleeving.

Still include seal assembly 3, it includes a plurality of seal collar 301 of dislocation on locating die body 201 and last die body 202 inside wall down, seal collar 301 and die body 201 and last die body 202 are fixed to meet, clearance fit between two adjacent seal collar 301 on die body 201 and the last die body 202 down, constitute the seal structure of laminating between two adjacent seal collar 301 when the lock is locked down die body 201 and last die body 202. In addition, both ends of the seal collar 301 are higher than the end plane of the lower mold body 201 and the upper mold body 202, so that the adjacent two seal collars 301 form an intersection at the ends, contributing to the improvement of the sealing effect of the above-described seal structure. The sealing collars 301 may be arranged in an array on the inner side walls of the lower mold body 201 and the upper mold body 202, thereby forming a plurality of independent sealing cavity mechanisms.

A sealing groove 302 and an air guide cavity 305 are sequentially arranged on one side, away from the lower die body 201 or the upper die body 202, of the sealing collar 301 from top to bottom, in comparison, the air guide cavity 305 is closer to the inner side wall of the lower die body 201 or the upper die body 202, and the air guide cavity 305 is communicated with outside air. A connecting rod 306 is movably inserted between the sealing groove 302 and the air guide cavity 305, the outer end of the connecting rod is connected with the rubber sealing strip 303 positioned in the sealing groove 302, the inner end of the connecting rod is connected with a main piston 307 arranged in the air guide cavity 305, and an elastic element can be sleeved on the part of the connecting rod 306 positioned in the air guide cavity 305. The glue seal 303 is movably disposed in the sealing groove 302, and the main piston 307 is disposed in the air guide chamber 305 for controlling the movement of the glue seal 303. A sealing edge 304 may be further disposed in the sealing groove 302 to limit the position of the adhesive sealing strip 303, so as to prevent the position of the adhesive sealing strip from shifting during the movement process.

The hydrogen cylinder storage device further comprises sealing edge members 4 which are arranged at two ends of the sealing collar 301 and used for movably sealing the two adjacent sealing collar 301, so that the sealing performance of the two sealing collar 301 is further improved.

When the hydrogen cylinder storage device stores hydrogen cylinders, the lower die body 201 and the upper die body 202 in the device are respectively and elastically arranged in the guide rods 102 on the two groups of brackets 101 in a sliding mode through the sliding pieces 204 on the lower die body and the upper die body 202, and the sliding pieces 204 are slidably arranged in the sleeve rods 203, so that the lower die body 201 and the upper die body 202 in the device are elastically arranged in the two groups of brackets 101, and meanwhile, the hydrogen cylinders are arranged between the lower die body 201 and the upper die body 202, therefore, the influences of jolt and impact on the hydrogen cylinder bodies can be effectively avoided in the storage and transportation process of the hydrogen cylinders, the damage to the cylinder bodies caused by impact can be avoided, meanwhile, the abrasion of the cylinder bodies caused by the rolling of the hydrogen cylinders can be also prevented, the uneven internal pressure distribution caused by the local damage and thinning of the cylinder bodies can be avoided, and the situation that the hydrogen cylinders burst can be avoided.

In addition, because the inside wall equipartition of lower die body 201 and last die body 202 is equipped with a plurality of seal collar 301, be equipped with in the seal groove 302 of seal collar 301 one side and glue the strip of paper used for sealing 303, and glue the strip of paper used for sealing 303 and insert through connecting rod 306 elasticity slip and locate in seal groove 302, when the bottle crimping was in seal groove 302 one side, can make glue the strip of paper used for sealing 303 elasticity butt on the bottle outer wall, and form sealed isolated space outside the bottle, and because all set up a plurality of seal collar 301 in lower die body 201 and the last die body 202 in array, and clearance fit between two adjacent seal collar 301, make lower die body 201 and last die body 202 when the lock, constitute the seal structure of laminating between two adjacent seal collar 301, and through a plurality of adjacent seal collar 301, constitute a plurality of sections independent seal cavity structures outside the bottle. And air guide cavity 305 communicates the cavity of sealed collar 301 both sides, when hydrogen cylinder surface produces the leakage, pressure in the above-mentioned cavity constantly risees, thereby the gas in the extrusion air guide cavity 305 moves towards main piston 307 one side, thereby make main piston 307 promote gluey strip of paper used for sealing 303 and bottle side removal, so that the hole between gluey strip of paper used for sealing 303 and the bottle reduces, the leakproofness constantly risees, thereby play safety protection's purpose, on the one hand can take place when the body is damaged, hydrogen that will reveal through sealed cavity is stored, avoid taking place the blasting accident, still can separate between body and the external atmospheric environment simultaneously, reduce humid air's corrosion and oxidation, improve hydrogen cylinder's factor of safety and life.

As an improvement, a pressure gauge can be arranged outside the independent cavities to be communicated with the cavities, so that the effects of inspection and warning are achieved.

In a specific embodiment, the sealing assembly 3 may further include two auxiliary cavities 308 respectively disposed at two sides of the bottom of the sealing collar 301, both of which are communicated with the air guide cavity 305, an auxiliary piston 310 is further disposed in the auxiliary cavity 308, and the auxiliary piston 310 is slidably connected to the auxiliary cavity 308 through an elastic member 309 disposed in the auxiliary cavity 308.

After the two secondary cavities 308 are arranged, one end of each secondary cavity is communicated with the gas guide cavity 305, the other end of each secondary cavity is communicated with the cavities on the two sides of the sealing collar 301, when the surface of the hydrogen gas bottle leaks, the pressure in the cavities is continuously increased, so that the secondary piston 310 in the secondary cavity 308 is extruded to move, the secondary piston 310 presses the gas in the gas guide cavity 305 to move towards one side of the primary piston 307, and the primary piston 307 pushes the rubber seal 303 to move towards the side of the bottle body. The provision of two secondary cavities 308 further improves the sealing performance of the seal assembly 3.

In one embodiment, the edge sealing member 4 includes a sealing block 402 disposed in a transverse groove 401 at the end of the sealing collar 301 in an elastic sliding manner, a magnetic member 403 is disposed inside the sealing block 402, and polarities of two adjacent magnetic members 403 are matched, so as to press and connect two adjacent sealing collars 301.

During the use, because horizontal groove 401 has been laid to the end of seal collar 301, and the elastic slip is equipped with sealing block 402 in horizontal groove 401, consequently when two sets of adjacent seal collar 301 lock in the bottle surface, two sets of sealing block 402 are constantly close to, when two sets of seal collar 301 all blocked tightly on the bottle, two sets of horizontal grooves 401 align each other, and the sealing block 402 of its interior elastic slip assembly is magnetic attraction under the effect of magnetic part 403, so that two sets of sealing block 402 compress tightly the laminating, and with the pore shutoff between the two sets of seal collar 301 overlap the position, in order to improve the leakproofness between the seal collar 301.

In a specific embodiment, a limiting assembly 5 is further disposed between the lower mold body 201 and the upper mold body 202, the limiting assembly 5 includes a limiting rod 501 and two return springs 502, the limiting rod 501 is movably inserted between the lower mold body 201 and the upper mold body 202, and the two return springs 502 are respectively sleeved at two ends of the limiting rod 501 and respectively used for elastically connecting the lower mold body 201 and the upper mold body 202. The setting of spacing subassembly 5 can limit down die body 201 and the slip orbit of last die body 202 on gag lever post 501 on the one hand, reduces the position deviation that die body 201 and last die body 202 produced at the slip in-process down, and on the other hand can limit down the die body 201 and go up the live distance between the die body 202, when the bottle explodes, can reduce the piece that the bottle produced as far as and splash, avoids producing the injury to personnel on every side.

The outer end faces of the two brackets 101 may also be provided with straight cut edges 103, so that the entire outer end faces of the two brackets 101 are in a rectangular structure. This kind of rectangle structure of outer terminal surface for this storage device can be convenient for pile up and the pile up neatly, compares and uses the bottle to carry out the pile up neatly under traditional condition, can effectively reduce the roll of bottle, and improves the stability of placing.

The detachable connection between the lower mold body 201 and the upper mold body 202 may be provided by: for example, both ends of the lower mold body 201 are provided with a catching groove 205, and both ends of the upper mold body 202 are provided with a locking member 206 matching with the catching groove 205. The catching groove 205 and the locking member 206 are used to movably lock the lower mold body 201 and the upper mold body 202. In use, the catching groove 205 and the locking member 206 can lock the lower mold body 201 and the upper mold body 202 after the lower mold body 201 and the upper mold body 202 are attached to each other, so that the attachment surfaces of the lower mold body 201 and the upper mold body 202 are connected in a pressing and sealing manner, and the sealing collar 301 in the lower mold body 201 and the upper mold body 202 are attached to the surface of the bottle body, thereby forming a plurality of sections of independent sealing cavities.

Further, the joint surfaces of the lower mold body 201 and the upper mold body 202 may also be subjected to a filler sealing treatment to improve the sealing effect thereof, which is not limited herein.

In the use of the device, as an improvement, the number of the glue seal strips 303 in the seal collar 301 is one, the glue seal strips are independently arranged at one end of the seal groove 302 corresponding to a plurality of air guide cavities 305, and a plurality of main pistons 307 in the air guide cavities 305 are connected with one glue seal strip 303 through a plurality of connecting rods 306.

The lower die body and the upper die body which can be movably clamped and locked on the hydrogen cylinder and the plurality of adjacent sealing shaft rings which are arranged on the inner side walls of the lower die body and the upper die body in a staggered manner are arranged, so that a plurality of independent cavities can be formed outside the hydrogen cylinder body, hydrogen leakage can be prevented, and the protection effect can be improved; furthermore, the support members are elastically arranged outside the lower die body and the upper die body, so that the overall impact resistance of the hydrogen cylinder storage device can be improved, and the safety of the hydrogen cylinder in the storage and transportation processes is improved.

The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A hydrogen cylinder storage device, comprising:

the sealing assembly comprises a plurality of sealing shaft collars which are arranged on the inner side walls of the lower die body and the upper die body in a staggered mode, the two adjacent sealing shaft collars on the lower die body and the upper die body are in clearance fit, and two ends of each sealing shaft collar are higher than the end planes of the lower die body and the upper die body; a sealing groove and an air guide cavity are sequentially arranged on one side, away from the lower die body or the upper die body, of the sealing collar from top to bottom, a connecting rod is movably inserted between the sealing groove and the air guide cavity, the outer end of the connecting rod is connected with a rubber sealing strip positioned in the sealing groove, and the inner end of the connecting rod is connected with a main piston arranged in the air guide cavity;

and the edge sealing components are arranged at two ends of the sealing shaft rings and used for movably sealing the two adjacent sealing shaft rings.

2. The hydrogen cylinder storage device according to claim 1, wherein the seal assembly further comprises two auxiliary cavities respectively disposed on two sides of the bottom of the seal collar, both cavities being in communication with the air guide cavity, and an auxiliary piston disposed in the auxiliary cavity and slidably connected to the auxiliary cavity via an elastic member disposed in the auxiliary cavity.

3. The hydrogen cylinder storage device of claim 1, wherein the sealing member includes a sealing block that is slidably disposed in a transverse groove at the end of the sealing collar, and magnetic members are disposed inside the sealing block, and the polarities of two adjacent magnetic members are matched.

4. The hydrogen cylinder storage device according to claim 1, wherein a limiting component is further disposed between the lower mold body and the upper mold body, the limiting component includes a limiting rod and two return springs, the limiting rod is movably inserted between the lower mold body and the upper mold body, and the two return springs are respectively sleeved at two ends of the limiting rod.

5. The hydrogen cylinder storage device according to claim 1, wherein straight cut edges are provided on the outer end surfaces of the two brackets, so that the entire outer end surfaces of the two brackets have a rectangular structure.

6. The hydrogen cylinder storage device according to claim 1, wherein the lower mold body has two ends each provided with a catching groove, and the upper mold body has two ends each provided with a locking member that fits with the catching groove.

7. The hydrogen cylinder storage device of claim 1, wherein each sealing collar array is arranged on the inner side walls of the lower mold body and the upper mold body.