CN217653667U

CN217653667U - Unliquefied hydrogen recovery device for hydrogen liquefaction

Info

Publication number: CN217653667U
Application number: CN202221129280.2U
Authority: CN
Inventors: 李向国; 雷国栋; 李鹏飞
Original assignee: Huajiu Hydrogen Energy Henan Co ltd
Current assignee: Huajiu Hydrogen Energy Henan Co ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-10-25
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a non-liquefied hydrogen recovery device for hydrogen liquefaction, which comprises a cylinder body; the upside of barrel is fixed with the cover, the inner chamber right side of barrel is fixed with hydrogen gas collecting bottle through the dead lever, the bottom of hydrogen gas collecting bottle is equipped with the opening, the left water inlet department in hydrogen gas collecting bottle upper end is fixed with the water injection pipe that extends to the barrel outside, the bottom right-hand member of barrel is equipped with the gaseous hydrogen admission pipe that extends to hydrogen gas collecting bottle bottom inner chamber, the left side of barrel bottom is equipped with the drain pipe, the middle part of drain pipe is equipped with drainage valve, the exhaust port department of hydrogen gas collecting bottle upside installs the aspiration pump, the exhaust port department of aspiration pump upper end installs the hydrogen discharge pipe that extends to the barrel outside, the tip of hydrogen discharge pipe is equipped with exhaust valve, and this hydrogen liquefaction is with not liquefying hydrogen recovery unit, adopts the mode of drainage method to improve the purity of hydrogen collection, simple structure, convenient operation.

Description

Unliquefied hydrogen recovery device for hydrogen liquefaction

Technical Field

The utility model belongs to the technical field of hydrogen is retrieved, especially, relate to a hydrogen liquefaction is with not liquefied hydrogen recovery unit.

Background

The hydrogen has a chemical formula of H2, a molecular weight of 2.01588, is a gas which is extremely easy to burn at normal temperature and normal pressure, and is colorless, transparent, odorless and tasteless and insoluble in water. Hydrogen is the least dense gas known in the world. In order to improve the storage capacity and transportation efficiency of hydrogen, the hydrogen is usually liquefied and stored in a storage tank, and the hydrogen is usually liquefied at a pressure of 10-15MPa and a temperature of 50-70K. After liquefying hydrogen, need retrieve the hydrogen that is not liquefied in the gas holder, because the density of hydrogen is less than the air, adopt the mode of exhaust method to retrieve it at present mostly, this kind of hydrogen recovery mode leads to the hydrogen purity of retrieving to be lower, can not satisfy current user demand.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model provides a hydrogen liquefaction is with not liquefying hydrogen recovery unit, the mode that adopts the drainage method has improved the purity of collecting hydrogen, simple structure, convenient operation.

In order to achieve the above object, the utility model provides a following technical scheme:

an unliquefied hydrogen recovery device for hydrogen liquefaction comprises a cylinder body; the upper side of the cylinder is fixed with a cylinder cover, the right side of the inner cavity of the cylinder is fixed with a hydrogen gas collecting bottle through a fixing rod, the bottom of the hydrogen gas collecting bottle is provided with an opening, a water inlet on the left side of the upper end of the hydrogen gas collecting bottle is fixed with a water injection pipe extending to the outer side of the cylinder, the right end of the bottom of the cylinder is provided with a gaseous hydrogen gas inlet pipe extending to the inner cavity of the bottom of the hydrogen gas collecting bottle, the left side of the bottom of the cylinder is provided with a water discharge pipe, the middle of the water discharge pipe is provided with a water discharge valve, an air suction pump is installed at an air outlet on the upper end of the hydrogen gas collecting bottle, a hydrogen gas discharge pipe extending to the outer side of the cylinder is installed at the end of the hydrogen gas discharge pipe, a water level meter positioned at the middle of the hydrogen gas collecting bottle is arranged on the right side of the inner cavity of the cylinder, water is injected into the hydrogen gas collecting bottle through the water injection pipe and flows into the inner cavity of the cylinder until the water level in the inner cavity of the cylinder reaches the water level meter, the water level in the cylinder, the air discharge pipe is led into the hydrogen gas collecting bottle through the gaseous hydrogen gas collecting bottle, the air discharge pipe, the pure hydrogen gas collecting bottle is slowly increased, and the pure hydrogen collecting bottle is convenient for operation of a hydrogen collecting device.

Compared with the prior art, the beneficial effects of the utility model are that: the water is injected into the hydrogen gas collecting bottle through the water injection pipe and flows into the inner cavity of the cylinder body until the water level in the inner cavity of the cylinder body reaches the water level meter, the hydrogen which is not liquefied is introduced into the hydrogen gas collecting bottle through the gaseous hydrogen inlet pipe, the hydrogen collected in the hydrogen gas collecting bottle slowly increases at the moment, the water level in the cylinder body slowly rises, when the hydrogen collected in the hydrogen gas collecting bottle reaches a certain amount, finally, the hydrogen collected in the hydrogen gas collecting bottle is discharged into the gas storage equipment by the air suction pump, the purity of hydrogen collection is improved by adopting a drainage method, the structure is simple, and the operation is convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 shows the internal structure of the present invention.

In the figure: the device comprises a cylinder body 1, a cylinder cover 2, a fixing rod 3, a hydrogen gas collecting bottle 4, a water injection pipe 5, a gaseous hydrogen inlet pipe 6, a water discharge pipe 7, a water discharge valve 8, an air pump 9, a hydrogen gas discharge pipe 10, a water level gauge 11 and an exhaust valve 12.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example (b):

referring to fig. 1-2, an unliquefied hydrogen recovery apparatus for hydrogen liquefaction includes a cylinder 1; a cylinder cover 2 is fixed on the upper side of a cylinder body 1, a hydrogen gas collecting bottle 4 is fixed on the right side of the inner cavity of the cylinder body 1 through a fixing rod 3, the bottom of the hydrogen gas collecting bottle 4 is provided with an opening, a water injection pipe 5 extending to the outer side of the cylinder body 1 is fixed at a water inlet at the left side of the upper end of the hydrogen gas collecting bottle 4, a gaseous hydrogen gas inlet pipe 6 extending to the inner cavity of the bottom end of the hydrogen gas collecting bottle 4 is arranged at the right end of the bottom of the cylinder body 1, a drain pipe 7 is arranged at the left side of the bottom end of the cylinder body 1, a drain valve 8 is arranged in the middle of the drain pipe 7, an air exhaust pump 9 is arranged at the air exhaust port at the upper side of the hydrogen gas collecting bottle 4, a hydrogen gas exhaust pipe 10 extending to the outer side of the cylinder body 1 is arranged at the air exhaust port at the upper end of the air pump 9, an exhaust valve 12 is arranged at the end of the hydrogen gas exhaust pipe 10, the right side of the inner cavity of the cylinder body 1 is provided with a water level gauge 11 positioned in the middle of the hydrogen gas collecting bottle 4, water is injected into the hydrogen gas collecting bottle 4 through a water injection pipe 5 and flows into the inner cavity of the cylinder body 1 until the water level in the inner cavity of the cylinder body 1 reaches the water level gauge 11, the hydrogen which is not liquefied is introduced into the hydrogen gas collecting bottle 4 through a gaseous hydrogen inlet pipe 6, at the moment, the hydrogen gas collected in the hydrogen gas collecting bottle 4 is slowly increased, the water level in the cylinder body 1 slowly rises, and finally, the air suction pump 9 discharges the hydrogen gas collected in the hydrogen gas collecting bottle 4 into a gas storage device when the hydrogen gas collected in the hydrogen gas collecting bottle 4 reaches a certain amount.

The working principle is as follows: the water is injected into the hydrogen gas collecting bottle 4 through the water injection pipe 5 and flows into the inner cavity of the cylinder body 1 until the water level in the inner cavity of the cylinder body 1 reaches the water level meter 11, the hydrogen which is not liquefied is introduced into the hydrogen gas collecting bottle 4 through the gaseous hydrogen inlet pipe 6, the hydrogen collected in the hydrogen gas collecting bottle 4 is slowly increased at the moment, the water level in the cylinder body 1 slowly rises, when the hydrogen collected in the hydrogen gas collecting bottle 4 reaches a certain amount, finally, the hydrogen collected in the hydrogen gas collecting bottle 4 is discharged into the gas storage equipment by the air suction pump 9, the purity of the hydrogen gas collection is improved by adopting a drainage method, the structure is simple, and the operation is convenient.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, it will be obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a hydrogen liquefaction is with not liquefied hydrogen recovery unit, includes the barrel, its characterized in that: the upside of barrel is fixed with the cover, the inner chamber right side of barrel is fixed with the hydrogen gas collecting bottle through the dead lever, the bottom of hydrogen gas collecting bottle is equipped with the opening, the left water inlet department in hydrogen gas collecting bottle upper end is fixed with the water injection pipe that extends to the barrel outside, the bottom right-hand member of barrel is equipped with the gaseous hydrogen admission pipe that extends to hydrogen gas collecting bottle bottom inner chamber, the left side of barrel bottom is equipped with the drain pipe, the middle part of drain pipe is equipped with drainage valve, the exhaust port department of hydrogen gas collecting bottle upside installs the aspiration pump, the exhaust port department of aspiration pump upper end installs the hydrogen discharge pipe that extends to the barrel outside, the tip of hydrogen discharge pipe is equipped with the air discharge valve, the right side of barrel inner chamber is equipped with the fluviograph that is located hydrogen gas collecting bottle middle part.