CN210891039U

CN210891039U - Hydrogen storage device

Info

Publication number: CN210891039U
Application number: CN201921910324.3U
Authority: CN
Inventors: 姜慧; 任岩; 王广华; 王广飞; 陈伟; 刘青; 马凯成; 王�锋
Original assignee: Anhui Bohua Hydrogen Energy Technology Co ltd
Current assignee: Anhui Bohua Hydrogen Energy Technology Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2020-06-30
Anticipated expiration: 2029-11-07

Abstract

The utility model discloses a hydrogen storage device, including a jar body, air duct, a plurality of baffle, jar body top is equipped with the business turn over gas port, and the air duct extends to jar internal bottom by the business turn over gas port of a jar body, is equipped with a plurality of micropores that are used for hydrogen to pass through on the air duct, and a plurality of baffle spaced install on jar internal wall, and the air duct passes by a plurality of baffle middle parts, and the internal alloy powder of putting into of jar. The utility model has the advantages that: divide into a plurality of cavitys with jar internal portion through a plurality of baffles for the alloy powder distributes more evenly, and the alloy of avoiding after the pulverization can all subside to the tank bottoms and the piece that hardens, reduces alloy jar body design intensity, improves jar body life, and makes hydrogen only can follow the micropore and come in and go out, avoids the alloy powder to get into the air duct.

Description

Hydrogen storage device

Technical Field

The utility model relates to an alloy hydrogen storage technology application field, in particular to a hydrogen storage device using alloy powder to store hydrogen.

Background

The current hydrogen storage alloys can exhibit lattice expansion, pulverization and heat release during the reaction with hydrogen to form metal hydrides. Heat is absorbed during the release of hydrogen. With use, the powdered alloy will settle to the bottom of the can and harden into a mass. The hardened alloy powder absorbs hydrogen again to cause the phenomenon of uneven stress distribution of the tank body, and finally the safety of the tank body is deteriorated, and the service life is shortened.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: how to solve the poor problem of gas holder body security.

The utility model discloses a following technical means realizes solving above-mentioned technical problem:

a hydrogen storage device comprises a tank body, an air guide pipe and a plurality of partition plates, wherein the top end of the tank body is provided with an air inlet and an air outlet, the air guide pipe extends to the bottom in the tank body from the air inlet and the air outlet of the tank body, the air guide pipe is provided with a plurality of micropores for hydrogen to pass through, the partition plates are arranged on the inner wall of the tank body at intervals, the air guide pipe passes through the middles of the partition plates, and alloy powder is placed in; the middle part of the clapboard is provided with a boss, the boss is of a structure with an opening at the bottom and a hollow interior, the side surface of the boss is provided with a filling hole for filling alloy powder, and the top surface of the boss is provided with a through hole for the air duct to pass through; the filling holes between the adjacent partition plates are arranged in a staggered mode.

The utility model discloses a plurality of baffles divide into a plurality of cavitys with jar internal portion for the alloy powder distributes more evenly, and the alloy after avoiding the pulverization can all subside to the tank bottoms and the piece that hardens, reduces alloy jar body design intensity, improves jar body life, and makes hydrogen only can follow and come in and go out in the micropore, avoids the alloy powder to get into the air duct.

The boss is a through hole for the air guide pipe to pass through and a filling hole for filling the alloy powder, and the alloy powder needs to be filled while vibrating until the alloy powder does not sink any more when vibrating.

The filling holes between the adjacent partition plates are arranged in a staggered mode, so that pulverized alloy powder is prevented from directly settling to the bottom from the upper portion of the tank body through the side holes, the bottom hardening effect is reduced, and the stress distribution of the tank body is improved. The baffle is close-fitting with the jar body, avoids packing alloy powder between baffle and the jar body, increases the area of contact of baffle and jar body, improves the heat conductivility of baffle, and the baffle is directly inserted into the jar body during the installation.

Preferably, the gas-liquid separator further comprises a connector for connecting an external pipeline, the connector is in threaded connection with the top end of the tank body, and the connector is communicated with the top end of the gas guide pipe.

The hydrogen storage device can be quickly connected with an external pipeline through a connector.

Preferably, the air duct bottom is the toper, and air duct bottom apart from jar internal portion minimum less than or equal to 2 cm.

Preferably, the number of the filling holes is 2.

Preferably, the edge of the partition board is provided with a bend, an inclined plane is arranged between the bend and the boss, and the inclination angle is 50-90 degrees.

Bending at the edge of the partition plate increases the heat conduction area of the partition plate, and the heat released when the alloy absorbs hydrogen is conducted to the pipe wall, and when the alloy releases hydrogen, the heat is conducted to the center of the tank body from the outer wall.

Preferably, the side surface of the boss forms an angle of 90-150 degrees with the top surface of the boss.

Preferably, the distance between the partitions is 0 to 3 times the height of the partitions.

Preferably, the tank body comprises an upper end enclosure, a straight pipe section and a lower end enclosure which are welded in sequence from top to bottom, the upper end enclosure, the straight pipe section and the lower end enclosure form a cavity with an upper opening, and the upper end enclosure is provided with a threaded hole for connecting a connector. The lower end enclosure and the straight pipe section are welded firstly, then the partition plates are inserted in sequence, then the upper end enclosure is welded, and finally the connector is screwed in.

The utility model has the advantages that:

(1) the utility model discloses a plurality of baffles divide into a plurality of cavitys with jar internal portion for the alloy powder distributes more evenly, and the alloy after avoiding the pulverization can all subside to the tank bottoms and the piece that hardens, reduces alloy jar body design intensity, improves jar body life, and makes hydrogen only can follow and come in and go out in the micropore, avoids the alloy powder to get into the air duct.

(2) The hydrogen storage device can be quickly connected with an external pipeline through a connector.

(3) The filling holes between the adjacent partition plates are arranged in a staggered mode, so that pulverized alloy powder is prevented from directly settling to the bottom from the upper portion of the tank body through the side holes, the bottom hardening effect is reduced, and the stress distribution of the tank body is improved. The baffle is close-fitting with the jar body, avoids packing alloy powder between baffle and the jar body, increases the area of contact of baffle and jar body, improves the heat conductivility of baffle, and the baffle is directly inserted into the jar body during the installation.

(4) The edge of the partition board is bent to increase the heat conducting area of the partition board, so that heat released when the alloy absorbs hydrogen is conducted to the pipe wall, and when the alloy releases hydrogen, the heat is conducted to the center of the tank body from the outer wall;

(5) an inclined plane is arranged between the bend and the boss, the inclination angle is 50-90 degrees, the side face of the boss and the top face of the boss form an angle of 90-150 degrees, and the arrangement of the two angles is convenient for alloy to fill the space between the partition plates.

Drawings

FIG. 1 is a schematic structural diagram of a hydrogen storage apparatus according to an embodiment of the present invention;

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

FIG. 3 is a schematic structural view of a partition plate according to one embodiment;

fig. 4 is a cross-sectional view of the separator of fig. 3.

Reference numbers in the figures: jar body 1, air duct 2, baffle 3, boss 31, filling hole 32, through-hole 33.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 and 2, a hydrogen storage device comprises a tank body 1, an air duct 2, a plurality of partition plates 3 and a connector 4 for connecting an external pipeline;

1 top of jar body is equipped with the business turn over gas port, and air duct 2 extends to jar internal 1 bottom by jar business turn over gas port of body 1, is equipped with a plurality of micropores that are used for hydrogen to pass through on the air duct 2, and the installation of 3 intervals of a plurality of baffles is on 1 inner wall of jar body, and air duct 2 passes by 3 middle parts of a plurality of baffles, puts into the alloy powder in jar body 1, connect 4 and 1 top threaded connection of jar body, and connect 4 and 2 top intercommunications of air duct. The tank body 1 stores hydrogen storage alloy powder, the gas guide pipe and the hydrogen guide pipe 2 conduct hydrogen, the hydrogen storage equipment can be quickly connected with an external pipeline through the connector 4, the partition plate 3 conducts heat to the alloy powder when hydrogen is charged, the partition plate 3 transmits the heat to the alloy powder when the hydrogen is discharged, and fine alloy particles generated by alloy pulverization are blocked.

The tank body 1 comprises an upper sealing head, a straight pipe section and a lower sealing head which are sequentially welded from top to bottom, the upper sealing head, the straight pipe section and the lower sealing head form a cavity with an upper opening, the upper sealing head is provided with a threaded hole for connecting a connector, and the connector 4 is externally provided with threads which are connected through the threads. During welding, the lower end enclosure and the straight pipe section are welded firstly, then the partition plates 3 are inserted in sequence, the air guide pipe 2 is inserted after the partition plates 3 are inserted, then alloy powder is filled, finally the upper end enclosure is welded, and finally the connector 4 is screwed in. The welding of jar body 1 outside has hexagonal prism shape platform, is convenient for the later stage to place.

2 foam alloy constitutions of air duct, the bottom is the toper, 2 upper portions of air duct weld on connecting 4, the welding seam is complete, and is flawless, and hydrogen can only get into jar body 1 through the thin micropore footpath of 2 lateral walls of air duct, and the micropore avoids alloy powder to get into air duct 2 simultaneously, and the tank bottoms is led to from the upper end to air duct 2, and the distance is no longer than 2cm from the tank bottoms.

As shown in fig. 3 and 4, the specific structure of the separator in this embodiment is: the separator 3 may be made of pure aluminum, pure copper, an alloy material of aluminum or copper, or graphite. The middle part has boss 31, and the height is H, and there is certain angle A boss side and boss top surface, and the A scope is between 90-150, and the edge is equipped with bends, bends to increase the heat conduction area of baffle 3, leads to the pipe wall with the heat that releases when the alloy inhales hydrogen, when the alloy is put hydrogen, from the leading-in heat of outer wall to jar body center. The height is T, T can be larger than H, also can be less than or equal to H, 3 bottom and the bend edge of baffle B, B scope is between 50-90, the setting of angle is convenient for the alloy to fill up the space between the baffle.

The side edge of the boss 31 is provided with filling holes 32, so that alloy powder can conveniently enter the lower-layer partition plate from the upper-layer partition plate, the alloy powder is easy to fill, the alloy powder needs to be filled while vibrating during filling until the alloy powder does not sink any more during vibrating, the number of the filling holes 32 is 2 in the embodiment, and the number of the filling holes can be more as required; the filling holes 32 between two partition boards 3 are not aligned and are staggered, and the staggered angle is half of the included angle between the adjacent filling holes 32 on the same partition board 3, for example, in this embodiment, the included angle between the adjacent filling holes 32 is 180 degrees, and the included angle between the filling hole of the partition board on the upper layer or the lower layer and the filling hole of the partition board in the middle is 90 degrees, where the included angle refers to the included angle projected onto the horizontal plane. The filling holes 32 between the adjacent partition plates 3 are arranged in a staggered mode, so that pulverized alloy powder is prevented from directly settling to the bottom from the upper portion of the tank body 1 through the filling holes 32, the bottom hardening effect is reduced, and the stress distribution of the tank body 1 is improved.

The partition plate 3 is tightly matched with the tank body 1, so that alloy powder is prevented from being filled between the partition plate 3 and the tank body 1, the contact area between the partition plate 3 and the tank body 1 is increased, the heat conduction performance of the partition plate 3 is improved, and the partition plate 3 is directly inserted into the tank body 1 during installation.

There is through hole 33 in the middle of the boss 31, and this embodiment is the round hole for air duct 2 passes through, and

air duct

2 and 3 intervals of baffle are as little as possible, and reducible alloy powder subsides to the bottom from jar body 1 upper portion, but the interval increases easily and inserts 2 difficulties of air duct too little, and general interval is no longer than 5 mm.

The partition boards 3 are tightly matched with the tank body 1, and the distance between every two adjacent partition boards 3 is 0-3 times of the height of the partition boards.

The joint 4 can adopt a straight-through joint to connect with an external valve or directly use a self-sealing quick connector.

This embodiment is when using, and 3 interalloy powdered particles of baffle subside on baffle 3, can not subside the tank bottoms, have reduced tank bottoms board and have combined gold quantity, have reduced the bottom stress concentration condition of alloy tank.

The utility model discloses a plurality of baffles 3 divide into a plurality of cavitys with jar internal portion for the alloy powder distributes more evenly, and the alloy after avoiding the pulverization can all subside to the tank bottoms and the piece that hardens, reduces alloy jar body design intensity, improves 1 life of jar body, and makes hydrogen only can follow the micropore and come in and go out, avoids the alloy powder to get into air duct 2.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A hydrogen storage device is characterized by comprising a tank body, an air guide pipe and a plurality of partition plates, wherein the top end of the tank body is provided with an air inlet and an air outlet, the air guide pipe extends to the bottom in the tank body from the air inlet and the air outlet of the tank body, the air guide pipe is provided with a plurality of micropores for hydrogen to pass through, the partition plates are arranged on the inner wall of the tank body at intervals, the air guide pipe passes through the middles of the partition plates, and alloy powder is placed in the; the middle part of the clapboard is provided with a boss, the boss is of a structure with an opening at the bottom and a hollow interior, the side surface of the boss is provided with a filling hole for filling alloy powder, and the top surface of the boss is provided with a through hole for the air duct to pass through; the filling holes between the adjacent partition plates are arranged in a staggered mode.

2. The hydrogen storage apparatus of claim 1, further comprising a connector for connecting an external pipeline, wherein the connector is in threaded connection with the top end of the tank body, and the connector is communicated with the top end of the gas guide tube.

3. The hydrogen storage device according to claim 1, wherein the bottom of the gas-guide tube is tapered, and the distance from the lowest position of the bottom of the gas-guide tube to the interior of the tank body is less than or equal to 2 cm.

4. A hydrogen storage apparatus according to claim 1, characterized in that said filling hole is 2.

5. The hydrogen storage device of claim 1, wherein the edge of the partition is provided with a bend, and an inclined plane is formed between the bend and the boss, and the inclined angle is 50-90 degrees.

6. A hydrogen storage apparatus as claimed in claim 1, wherein the sides of the bosses are at an angle of 90 to 150 degrees to the top of the bosses.

7. A hydrogen storage apparatus according to claim 2, characterized in that the distance between the partitions is 0-3 times the height of the partitions.

8. The hydrogen storage device as claimed in claim 2, wherein the tank body comprises an upper head, a straight pipe section and a lower head which are welded from top to bottom in sequence, the upper head, the straight pipe section and the lower head form a cavity with an opening at the upper part, and the upper head is provided with a threaded hole for connecting a connector.