CN112678769A

CN112678769A - Hydrogen discharging device

Info

Publication number: CN112678769A
Application number: CN202011584206.5A
Authority: CN
Inventors: 刘兵银; 赵一博; 焦春柳
Original assignee: Shanghai Mg Power Technology Co ltd
Current assignee: Shanghai Mg Power Technology Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-04-20

Abstract

The invention relates to a hydrogen discharge device which can comprise a shell (1) and an exhaust port (5). Wherein the shell (1) is internally provided with a liquid storage area (11) for storing liquid (2) required by hydrogen production, a cavity (12) for placing the solid hydrogen-releasing material (3) and a flow-limiting plug (4) arranged between the liquid storage area (11) and the cavity (12). Further, the flow restricting plug (4) is for guiding the liquid (2) into the cavity (12) to react with the solid hydrogen evolving material (3) to generate hydrogen gas, and for discharging the generated hydrogen gas to the reservoir (11). In addition, an exhaust port (5) is disposed on the housing (1) for exhausting the hydrogen gas inside the reservoir (11) to the outside. The present invention can control the rate of hydrogen production and can be used to produce high purity hydrogen.

Description

Hydrogen discharging device

Technical Field

The present invention relates generally to the field of hydrogen production. More particularly, the present invention relates to a hydrogen discharge device.

Background

Existing hydrogen production technologies typically produce hydrogen by electrolyzing water and utilizing electrolysis equipment. However, the related electrolysis apparatuses generally have disadvantages of complicated structure, low safety and large energy consumption, and easily cause leakage of liquid when moving. In addition, because the electrolysis efficiency of hydrogen prepared by simply adopting electrolyzed water is low, electrolyte is often added into pure water to improve the electrolysis efficiency so as to achieve better hydrogen preparation effect. However, when the electrolyte added is sodium hydroxide or sulfuric acid, the purity of the prepared hydrogen is not high, the prepared hydrogen is accompanied by alkali vapor, and alkali liquor can be entrained, so that the use is inconvenient.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, the present invention provides a hydrogen discharge apparatus that can be used to produce high-purity hydrogen gas and also can control the rate of producing hydrogen gas.

In order to achieve the above object, the present invention provides a hydrogen discharge device comprising:

a housing having a reservoir therein for storing a liquid required for hydrogen production, a cavity for housing a solid hydrogen-evolving material, and a flow restricting plug disposed between the reservoir and the cavity;

the flow restricting plug is for directing the liquid into the cavity to react with the solid hydrogen evolving material to produce hydrogen gas and for venting the produced hydrogen gas to the reservoir; and

a vent disposed on the housing for venting the hydrogen gas from the reservoir to the outside.

In one embodiment, the hydrogen discharge device further comprises at least one reaction tube disposed within the housing, the reaction tube having the reservoir and the cavity disposed therein.

In one embodiment, the outer diameter of the flow restricting plug matches the inner diameter of the reaction tube.

In one embodiment, when the housing is filled with a liquid, the orifice of the reaction tube is at least partially submerged in the liquid.

In one embodiment, the top of the flow limiting plug is provided with a counterweight port for increasing or decreasing a counterweight.

In one embodiment, the weight port is located on the restrictor plug axis.

In one embodiment, the bottom of the flow restricting plug is tapered.

In one embodiment, the solid hydrogen evolving material is hydrogen americane powder.

In one embodiment, the housing comprises a container body and a container cover body hermetically fixed with the upper end of the container body, and the container cover body is provided with the exhaust port and a hydrogen absorption pipe penetrating through the exhaust port.

Compared with the prior art, the hydrogen production device has the advantages that the liquid and solid hydrogen discharge materials required by hydrogen production can be contained through the arranged liquid storage region and the cavity, so that high-purity hydrogen is generated. In addition, by arranging a flow restricting plug between the reservoir and the cavity, the volume of liquid entering the cavity through the flow restricting plug can be controlled, thereby controlling the rate at which the liquid and the solid hydrogen evolving material react to form hydrogen gas.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

fig. 1 is a schematic structural view showing a hydrogen discharge device according to an embodiment of the present invention;

fig. 2 is a schematic structural view showing another hydrogen discharge device according to an embodiment of the present invention; and

fig. 3 is a schematic structural view illustrating a current limiting plug according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic view showing the structure of a hydrogen discharge device 100 according to an embodiment of the present invention. As shown in fig. 1, an embodiment of the present invention provides a hydrogen discharge device 100, which may include a housing 1 and an exhaust port 5. Wherein the interior of the housing 1 may have a reservoir 11 for storing the liquid 2 required for hydrogen production, a cavity 12 for placing the solid hydrogen-evolving material 3 and a restriction plug 4 arranged between the reservoir 11 and the cavity 12. In particular, the restriction plug 4 may be used to direct the liquid 2 into the cavity 12 to react with the solid hydrogen evolving material 3 to produce hydrogen gas and to discharge the produced hydrogen gas to the reservoir 11. In addition, an air vent 5 may be disposed on the housing 1 and used to vent hydrogen gas from the reservoir 11 to the outside. The solid hydrogen-releasing material 3 placed in the cavity 12 may be hydrogen beauty element powder. Correspondingly, the liquid 2 may be water.

The hydrogen melamine can include a solid hydrogen-releasing material formed on one or more of metal hydride (such as magnesium hydride, aluminum hydride, sodium hydride, etc.), metal (such as magnesium, aluminum, etc.), borohydride (such as sodium borohydride, etc.), hydrogen mineral aggregate, etc., wherein the solid hydrogen-releasing material formed on the basis of metal hydride, metal, borohydride, etc. can perform a hydrolysis reaction with the liquid to produce hydrogen, the solid hydrogen-releasing material based on the hydrogen mineral aggregate can perform a microelectrolysis action on the water when contacting the water, and H + generated by the microelectrolysis can be combined to be hydrogen to escape.

In an exemplary operating scenario, the solid hydrogen-evolving material 3 may be placed in the cavity 12 and the liquid 2 required for hydrogen production may be filled into the reservoir 11, such that the liquid 2 enters the cavity 12 through the restriction plug 4 and reacts with the solid hydrogen-evolving material 3 to produce hydrogen gas and is discharged. In order to place the solid hydrogen evolving material 3 in the cavity 12, the plug 4 may be taken out of the housing 1, the solid hydrogen evolving material 3 may be placed in the cavity 12, and the plug 4 may be placed between the reservoir 11 and the cavity 12. Further, in order to facilitate the removal of the plug 4 from the housing 1, the structure of the housing 1 may be adjusted.

In one embodiment, the housing 1 may include a first housing accommodating the flow restricting plug 4 and a second housing detachably connected to the first housing. Wherein, the joint of the first shell and the second shell is arranged close to the upper feed inlet of the shell 1, and the flow limiting plug 4 can be taken out or put into the shell 1 through the joint of the first shell and the second shell. Preferably, the first housing and the second housing are detachably connected by a screw thread. In a practical application scenario, the first shell and the second shell are firstly disassembled, the flow limiting plug 4 is taken out of the first shell, then the solid hydrogen discharging material 3 is put into the first shell, then the flow limiting plug 4 is placed in the first shell, and the first shell and the second shell are fixedly connected. Finally, the feed port (similar to the bottle mouth of the bottle body) of the shell 1 is opened to fill the liquid 2 into the shell 1 and seal the feed port. In another embodiment, the feedwell diameter of the housing 1 is the same as the outer diameter of the restriction plug 4 (i.e., the restriction plug 4 can be removed directly through the feedwell). In a practical application scenario, the feed inlet is first opened, then the flow restriction plug 4 is taken out through the feed inlet, and the solid hydrogen evolving material 3 is placed into the housing 1, and then the flow restriction plug 4 is placed into the housing 1. Finally, the liquid 2 is filled into the liquid reservoir 11 of the housing 1 through the feed opening and the feed opening is sealed.

In one application scenario, the housing 1 may include a container body and a container cover (similar to the bottle and the bottle cap) hermetically fixed to the upper end of the container body. Wherein, the container cover body is provided with an exhaust port 5 and a hydrogen absorption pipe 51 passing through the exhaust port 5. By providing the hydrogen absorption pipe 51, the hydrogen gas generated in the housing 1 can be transported to a predetermined target, and thus can be applied to various application scenarios (e.g., medical treatment, diet, etc.). In addition, the container cover body can seal the feed inlet after steps such as filling liquid 2 through the feed inlet are completed, so that the situation that the liquid 2 and the solid hydrogen discharging material 3 directly overflow the shell 1 after reacting to generate hydrogen and the situation that the hydrogen cannot be utilized is avoided. Further, the fixing manner of the exhaust port 5 and the hydrogen absorption pipe 51 may be selected as required. In one embodiment, the container cover is provided with an internal thread at the outlet 5, and one end of the hydrogen absorption pipe 51 is provided with an external thread, so that the external thread of the hydrogen absorption pipe 51 and the internal thread of the outlet 5 are matched and fixed when the generated hydrogen gas is transferred through the hydrogen absorption pipe 51. In another embodiment, the exhaust port 5 and the hydrogen absorption pipe 51 are of an integrally molded structure.

Fig. 2 is a schematic configuration diagram showing another embodiment of the hydrogen discharge device 200 according to the embodiment of the present invention. As shown in fig. 2, in one embodiment, the hydrogen discharge device 200 may further include at least one reaction tube 6 disposed in the housing 1, the reaction tube 6 having a liquid reservoir 11 and a cavity 12, and the restriction plug 4 disposed between the liquid reservoir 11 and the cavity 12 in the reaction tube 6. By arranging the reaction tube 6, the reaction tube 6 can be taken out of the shell 1 before or after the hydrogen is prepared so as to complete the addition of the solid hydrogen-releasing material 3 or the cleaning of the reaction tube 6. Further, the outer diameter of the restriction plug 4 may be matched to the inner diameter of the reaction tube 6. By such a matching arrangement, the liquid 2 in the liquid storage region 11 can be prevented from entering the cavity 12 through the gap between the flow-limiting plug 4 and the reaction tube 6 to react with the solid hydrogen-releasing material 3 to generate hydrogen, so that the situation that the liquid 2 directly enters the cavity 12 without passing through the flow-limiting plug 4 to cause uncontrollable hydrogen preparation rate can be avoided. In one application scenario, a plurality of reaction tubes 6 may be disposed within the housing 1, thereby increasing the rate at which hydrogen is produced.

In one application scenario, when the housing 1 is filled with the liquid 2, the nozzle of the reaction tube 6 is at least partially immersed in the liquid 2, i.e. at least the liquid 2 can enter the liquid storage region 11 through the nozzle of the reaction tube 6, so as to ensure that the liquid 2 reacts with the solid hydrogen-releasing material 3 to generate hydrogen after passing through the flow-limiting plug 4. Further, the nozzle structure of the reaction tube 6 can be selected according to the requirements. In one embodiment, the nozzle of the reaction tube 6 is an inclined opening, and the lowest point of the inclined opening is submerged into the liquid 2, so that the liquid 2 in the shell 1 can enter the reaction tube 6 through the lowest point of the inclined opening. In addition, the highest point of the inclined port can abut against the feeding port or the side wall of the shell 1 to ensure that the reaction tube 6 cannot be inclined. In another embodiment, the nozzle of the reaction tube 6 can abut against the feed port or the side wall of the shell 1, and the nozzle of the reaction tube 6 can be opened with a plurality of notches along the side wall toward the bottom thereof, and the bottom of the notch is located in the liquid 2, so as to ensure that the liquid 2 in the shell 1 enters the reaction tube 6 under the condition that the reaction tube 6 is not inclined.

Fig. 3 is a schematic structural view illustrating a current limiting plug according to an embodiment of the present invention. As shown in fig. 3, the flow restricting plug 4 is uniformly provided with a plurality of channels 41 along its circumferential direction, and the channels 41 can be used for guiding the liquid 2 into the cavity 12 to react with the solid hydrogen evolving material 3 to generate hydrogen gas, and can also be used for discharging the generated hydrogen gas to the liquid storage region 11. By providing a plurality of channels 41, the liquid 2 in the reservoir 11 can be guided into the cavity 12 to react with the solid hydrogen-evolving material 3 to form hydrogen gas, and the generated hydrogen gas will enter the reservoir 11 through the channels 41. During the process of hydrogen entering the liquid storage region 11 through the channels 41, the hydrogen in the channels 41 will push the liquid 2 in the channels 41 to flow back to the liquid storage region 11, thereby reducing the amount of the liquid 2 entering the cavity 12 in a certain period of time, and correspondingly achieving the effect of reducing the rate of hydrogen generation by the reaction of the liquid 2 and the solid hydrogen-evolving material 3. Further, the control of the rate of hydrogen generation may also be accomplished by other structures. In one embodiment, the rate of hydrogen generation can be increased or decreased by adjusting the number of channels 41. In another embodiment, the rate of hydrogen generation may also be varied by varying the size of the channels 41. Where a plurality of channels 41 are provided, the plurality of channels 41 may be uniformly arranged so that the positions at which the liquid 2 reacts with the solid hydrogen evolving material 3 to generate hydrogen gas are relatively uniform. Through the uniform arrangement, the acting force of the hydrogen on the flow limiting plug 4 is relatively uniform, and the phenomenon that the flow limiting plug 4 is inclined due to the fact that the force of the flow limiting plug 4 is uneven can be avoided.

In a practical application scenario, when the liquid 2 reacts with the solid hydrogen discharge material 3 to generate hydrogen, a situation that the hydrogen is gathered below the flow limiting plug 4 may occur, and this situation may cause a large force to the flow limiting plug 4 by the generated hydrogen, so that the flow limiting plug 4 moves outwards along the reaction tube 6, and finally the flow limiting plug 4 cannot play a role in limiting the flow. In order to solve the problem of large hydrogen acting force, the problem can be solved by adjusting the structure of the flow limiting plug 4. In one embodiment, the top of the flow restriction plug 4 may be provided with a weight port 42 for adding or subtracting weights. Due to the existence of the counterweight hole 42, the flow-limiting plug 4 can bear the acting force of hydrogen on the flow-limiting plug by increasing or decreasing the counterweight, so that the flow-limiting plug 4 cannot move outwards along the reaction tube 6. Further, the weight of the flow restriction plug 4 can be increased or decreased to calculate the force applied to the flow restriction plug 4 according to the designed reaction speed of the liquid 2 and the solid hydrogen-releasing material 3. In an application scenario, in order to avoid uneven stress on the current limiting plug 4 when the weight of the weight port 42 is increased or decreased, the position of the weight port 42 may be selected according to actual needs. In one embodiment, the weight port 42 may be located on the axis of the restrictor plug 4. Therefore, the situation that the stress of the flow limiting plug 4 is uneven can be avoided when the balance weight is increased or decreased into the balance weight hole 42. In another embodiment, the weight ports 42 are provided in plurality and uniformly disposed on the restrictor plug 4. By adding or subtracting weights of the same weight to or from the plurality of weight ports 42, the force applied to the restrictor plugs 4 can be made uniform without tilting. In one application scenario, to prevent powder of the solid hydrogen evolving material 3 from accumulating at the bottom of the restriction plug 4, the bottom of the restriction plug 4 may be tapered. By such a tapered structure, it is possible to avoid the situation where the solid hydrogen evolution material 3 is not sufficiently reacted with the liquid 2 due to the accumulation of the solid hydrogen evolution material 3 at the bottom of the restriction plug 4.

The embodiment of the present invention can accommodate the liquid 2 and the solid hydrogen-evolving material 3 required for hydrogen production reaction (e.g., hydrolysis hydrogen production reaction) by providing the liquid reservoir 11 and the cavity 12, so that it can generate high-purity hydrogen gas. In addition, by arranging the restriction plug 4 between the reservoir 11 and the cavity 12, the volume of the liquid 2 entering the cavity 12 through the restriction plug 4 can be controlled, thereby controlling the rate at which the liquid 2 and the solid hydrogen evolving material 3 react to form hydrogen gas.

It is also to be understood that the terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. As used in the specification and claims of this disclosure, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in the specification and claims of this disclosure refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.

As used in this specification and claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

Although the embodiments of the present invention are described above, the descriptions are only examples for facilitating understanding of the present invention, and are not intended to limit the scope and application scenarios of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A hydrogen discharge apparatus comprising:

a housing (1) having a reservoir (11) for storing a liquid (2) required for hydrogen production, a cavity (12) for housing a solid hydrogen-evolving material (3), and a flow-restricting plug (4) arranged between the reservoir (11) and the cavity (12);

the flow restricting plug (4) is uniformly provided with a plurality of channels (41) along the circumferential direction thereof, and the channels (41) are used for guiding the liquid (2) into the cavity (12) to react with the solid hydrogen emitting material (3) to generate hydrogen gas, and discharging the generated hydrogen gas to the liquid storage region (11); and

an air vent (5) disposed on the housing (1) for exhausting the hydrogen gas inside the reservoir (11) to the outside.

2. The hydrogen discharge device according to claim 1, wherein the hydrogen discharge device further comprises at least one reaction tube (6) provided in the housing (1), the reservoir (11) and the cavity (12) being provided in the reaction tube (6).

3. The hydrogen discharge device according to claim 2, wherein the outer diameter of the restriction plug (4) matches the inner diameter of the reaction tube (6).

4. The hydrogen discharge device according to claim 2, wherein the orifice of the reaction tube (6) is at least partially submerged in the liquid (2) when the housing (1) is filled with the liquid (2).

5. The hydrogen discharge device according to claim 1, wherein a weight hole (42) for increasing or decreasing the weight is provided at the top of the flow restricting plug (4).

6. The hydrogen discharge device according to claim 1, wherein the weight port (42) is located on an axis of the restriction plug (4).

7. The hydrogen discharge device according to claim 1, wherein the bottom of the restriction plug (4) is tapered.

8. The hydrogen evolving device according to claim 1, wherein the solid hydrogen evolving material (3) is a hydrogen meit powder.

9. The hydrogen discharge device according to claim 1, wherein the housing (1) comprises a container body and a container cover body hermetically fixed to an upper end of the container body, and the container cover body is provided with the exhaust port (5) and a hydrogen absorption pipe (51) penetrating through the exhaust port (5).