CN217603854U - Hydrogen storage bottle and vehicle with same - Google Patents

Abstract

The utility model discloses a hydrogen storage bottle and have its vehicle, include: a housing; an inner container arranged inside the outer shell and used for containing liquid hydrogen; and the cold shield coil is wound on the outer side of the inner container, and one end of the cold shield coil is connected with the inner container. Compared with the prior art, the hydrogen storage bottle has the advantages of large hydrogen storage amount and short gas supply time, and the hydrogen storage bottle keeps the interlayer low temperature by utilizing the better heat conductivity of the cold screen coil and the liquid hydrogen at the ultralow temperature in the pipe due to the arrangement of the cold screen coil, reduces heat exchange and has good heat insulation effect. A new storage mode is adopted for storing the liquid hydrogen, the energy is continuously provided for the liquid hydrogen fuel cell, and the requirements of light self weight and long endurance of the vehicle are met.

Description

Hydrogen storage bottle and vehicle with same

Technical Field

The utility model relates to a technical field is stored to liquid hydrogen, concretely relates to hydrogen storage bottle.

Background

In the prior art, although a vehicle-mounted high-pressure gaseous hydrogen storage bottle can meet the requirement of providing energy for a hydrogen fuel cell, the vehicle-mounted high-pressure gaseous hydrogen storage bottle has low hydrogen storage density and larger equipment dead weight and cannot carry more goods; the hydrogen storage quantity is small, the gas supply time is short, the heat insulation effect is poor, gas needs to be added repeatedly in long-distance transportation, and the transportation is not coherent, convenient and fast, the time is saved, so that the higher economic value cannot be integrally created.

Disclosure of Invention

The utility model aims at providing a hydrogen storage bottle aiming at the defects existing in the prior art, solving the problems of small hydrogen storage quantity, short gas supply time and poor heat insulation effect of the hydrogen storage bottle in the prior art.

In order to achieve the above object, the present invention provides a hydrogen storage bottle, comprising: a housing; the inner container is arranged inside the outer shell, a hollow interlayer is arranged between the inner wall of the outer shell and the outer wall of the inner container at intervals, and the inner container is used for containing liquid hydrogen; and the cold shield coil pipe is wound outside the inner container for multiple circles, and one end of the cold shield coil pipe is communicated with the inner container.

Compared with the prior art, the hydrogen storage bottle has the advantages of large hydrogen storage amount and short gas supply time, and the hydrogen storage bottle keeps the interlayer low temperature by utilizing the better heat conductivity of the cold screen coil and the liquid hydrogen at the ultralow temperature in the pipe due to the arrangement of the cold screen coil, reduces heat exchange and has good heat insulation effect. A new storage mode is adopted for liquid hydrogen storage, energy is continuously provided for the liquid hydrogen fuel cell, and the requirements of light self weight and long endurance of the vehicle are met.

In some embodiments, the inner container comprises a reinforcing layer wound around an outer layer of the inner container, the reinforcing layer being made of carbon fibers and/or glass fibers.

In some embodiments, further comprising a support connected between an inner wall of the outer shell and an outer wall of the inner container, the interlayer being a vacuum layer.

In some embodiments, the inner container outer layer is further wrapped with an insulation layer comprising a radiation shield, the insulation layer being wrapped around the inner container outer wall.

In some embodiments, the inner container further comprises an inner container for containing liquid hydrogen, and the inner container, the reinforcing layer, the heat insulating layer and the cold shield coil are sequentially arranged from inside to outside.

In some embodiments, the thermal insulation layer comprises a screen material layer and a spacer material layer, the screen material layer is a metal film, and the spacer material layer comprises one or more of a nylon mesh layer, an alkali-free glass fiber cloth layer and a finger-like fiber paper layer.

In some embodiments, the heat insulating layer comprises a screen material layer and a spacer material layer, the screen material layer is a plastic film layer with metal sprayed on the surface, and the spacer material layer comprises one or more of a nylon mesh layer, an alkali-free glass fiber cloth layer and a finger fiber paper layer.

In some embodiments, the low-temperature adsorbent and the normal-temperature adsorbent are further included, the low-temperature adsorbent is arranged on the outer wall of the inner container, and the normal-temperature adsorbent is arranged on the inner wall of the outer shell.

In some embodiments, the cold shield coil is a stainless steel pipe, one end of the cold shield coil penetrates into the inner container to communicate with the inside of the inner container, and the other end of the cold shield coil communicates with a hydrogen pipeline to allow the liquid hydrogen in the inner container to flow out.

The utility model also provides a vehicle, this vehicle includes foretell hydrogen storage bottle.

The vehicle has the same advantages as the hydrogen storage bottle described above over the prior art, and will not be described herein.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention.

Reference numerals are as follows:

an inner container 10; a housing 20; an interlayer 30; an insulating layer 40; a cold shield coil 50; a low temperature adsorbent 60; and a normal temperature adsorbent 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

A hydrogen storage cylinder and a vehicle having the same according to an embodiment of the present invention will be described with reference to fig. 1.

As shown in fig. 1, the embodiment of the present invention provides a hydrogen storage bottle, which includes an outer shell 20, an inner container 10, and a cold shield coil 50.

According to the utility model discloses a hydrogen storage bottle, inner container 10 is used for splendid attire liquid hydrogen, and shell 20 is used for protecting inner container 10, and the inner wall of shell 20 and the outer wall of inner container 10 are spaced apart to set up to form intermediate layer 30 between shell 20 and inner container 10, support piece connects between the inner wall of shell 20 and the outer wall of inner container 10, and intermediate layer 30 is seal structure.

Specifically, the cold shield coil 50 is formed by winding a stainless steel pipe having one end connected to the inner container 10 around the outside of the inner container 10. One end of cold screen coil 50 runs through inner container 10 and communicates with inner container 10, and the purpose is with the liquid hydrogen entering cold screen coil 50 in the inner container 10 to accuse temperature to intermediate layer 30, cold screen coil 50 multiturn winding is at the surface of inner container 10, and in some examples, cold screen coil 50 can twine at inner container 10 surface with spiral winding's form, the area of contact of purpose increase and intermediate layer 30, thereby improves accuse temperature effect. In some examples, the support may be made of a glass fiber reinforced plastic material.

The hydrogen storage tank has the advantages that the stored hydrogen is liquid hydrogen but not gaseous hydrogen, so that the hydrogen storage amount is large, the gas supply time is short, in addition, due to the arrangement of the cold shield coil pipe 50, the good heat conductivity of the cold shield coil pipe 50 and the ultralow temperature of the liquid hydrogen in the pipe are utilized to keep the low temperature of the interlayer 30, the interlayer 30 has good heat insulation performance, the heat exchange between the hydrogen storage tank and the outside is reduced, and the hydrogen storage tank has the advantages of high hydrogen storage density, small self weight of equipment, long endurance, good heat insulation effect and long lossless storage time.

In some embodiments, the inner wall of the outer shell 20 is spaced apart from the outer wall of the inner container 10 to form a sandwich 30 between the outer shell 20 and the inner container 10, the sandwich 30 is supported by glass fiber reinforced plastic to form a hollow sandwich 30, the sandwich 30 having a sealing structure is designed to be vacuum-pumped, and the sandwich 30 having a sealing structure is vacuum-pumped after the hydrogen storage bottles are assembled to form a vacuum sandwich to reduce heat conduction. The glass fiber reinforced plastic supporting structure meets the requirements of strength and rigidity, and reduces heat leakage quantity as much as possible.

In some embodiments, the inner container 10 is made of plastic that can withstand ultra-low temperature, the plastic is light in weight and low in cost under the condition of sufficient strength, and the inner container 10 includes a reinforcing layer. The reinforcing layer is made by winding carbon fibers and/or glass fibers with different thicknesses, and the carbon fibers and/or the glass fibers can improve the structural strength of the hydrogen storage bottle and reduce the overall mass as much as possible.

In some examples, as shown in fig. 1, the inner container of the inner container 10 is integrally formed by blow molding or rotational molding of plastic that can resist ultra-low temperature, and a reinforcing layer is provided outside the inner container to reinforce the strength of the inner container.

In some embodiments, the outer shell 20 is made of plastic, is light in weight and has sufficient strength and rigidity, forms a protective shell of the inner container 10, provides an installation space for other components of the hydrogen storage bottle, and is installed in the outer shell, so as to meet the requirements of the hydrogen storage bottle on low weight and high strength.

In some embodiments, the hydrogen storage vessel is further provided with a thermal insulation layer, and the thermal insulation layer 40 is formed by high vacuum multi-layer thermal insulation in which a plurality of radiation shields are installed in the vacuum interlayer 30, and the radiation shields are metal films having high reflectivity, thereby reducing radiation heat. Thereby improving the heat insulation performance of the hydrogen storage bottle, reducing the loss during storage and delaying the storage time.

In some embodiments, insulation layer 40 is comprised of a highly reflective, low emissivity screen material and a low thermal conductivity spacer material.

Specifically, the screen material may be formed as a screen material layer provided on the outer side of the inner container 10, and the spacer material may be formed as a spacer material layer provided on the outer side of the inner container 10, and the covering order of the screen material and the spacer material is not limited.

In some embodiments, the screen material layer is a metallized film or a metallized plastic layer, or both.

Specifically, the screen material can be an aluminum foil or a plastic film with aluminum sprayed on the surface, and the aluminum foil and the plastic film with aluminum sprayed on the surface can also be adopted at the same time; the spacing material is one or more of nylon net, alkali-free glass fiber cloth, alkali-free glass fiber paper, finger fiber paper and the like.

In some embodiments, insulation layer 40 is wound around the outer wall of inner container 10 and secured by aluminum tape or aluminum welding wire such that insulation layer 40 is disposed on the outer wall of the inner container. In some embodiments, the cold shield coil 50 is in communication with the inner container 10 and is wound outside the insulating layer, and the other end of the cold shield coil 50 is in communication with a hydrogen pipe for flowing hydrogen therethrough, and in use, the liquid hydrogen in the inner container 10 flows out through the cold shield coil 50, so that the low-temperature liquid hydrogen inside the inner container 10 can be continuously conducted into the cold shield coil 50, thereby keeping the interlayer 30 at a low temperature. The interlayer 30 is vacuumized, so that the heat conduction is low, the heat insulation effect of the hydrogen storage bottle is improved, the inner container 10 is isolated due to the design of the heat insulation layer 40, the heat exchange is reduced, meanwhile, the liquid hydrogen for controlling the temperature flows into the hydrogen using pipeline after flowing through the cold shield coil 50, and is consumed in the subsequent process, and the liquid hydrogen stored in the hydrogen storage bottle cannot be influenced. Since the consumed liquid hydrogen does not need to be kept at a low temperature during use, the design has the advantage that the liquid hydrogen to be consumed can be used for maintaining the temperature of the interlayer 30, thereby making the best use of the liquid hydrogen and exerting the maximum value of the liquid hydrogen.

In some embodiments, cryosorbent 60, such as 5A molecular sieves, 13X molecular sieves, etc., is disposed at the cold end of the sandwich 30, i.e., at the outer sidewall of the inner vessel 10, for dehydration; the room temperature side of the interlayer 30, that is, the inner side wall of the case 20 is provided with a room temperature adsorbent 70 such as palladium oxide, ag400, etc. for absorbing hydrogen and maintaining the vacuum degree of the interlayer 30.

In some embodiments, the hydrogen storage bottle further comprises a pipeline system, wherein the pipeline system is respectively provided with a liquid inlet and outlet pipeline, a gas return pipeline, a safety pipeline, a liquid supply pipeline and the like, and the functions of liquid inlet and outlet, pressurization, safety release and the like of the hydrogen storage bottle are realized through the functions of different pipelines.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hydrogen storage cylinder, comprising:

a housing;

the inner container is arranged inside the outer shell, a hollow interlayer is arranged between the inner wall of the outer shell and the outer wall of the inner container at intervals, and the inner container is used for containing liquid hydrogen;

and the cold shield coil pipe is wound outside the inner container for multiple circles, and one end of the cold shield coil pipe is communicated with the inner container.

2. The hydrogen storage bottle of claim 1, wherein the inner container includes a reinforcing layer wound around an outer layer of the inner container, the reinforcing layer being composed of carbon fiber and/or glass fiber.

3. The hydrogen storage bottle of claim 1, further comprising a support member connected between an inner wall of the outer shell and an outer wall of the inner vessel, the interlayer being a vacuum layer.

4. The hydrogen storage bottle of claim 2, wherein the outer layer of the inner container is further wrapped with an insulation layer comprising a radiation shield, the insulation layer being wrapped around the outer wall of the inner container.

5. The hydrogen storage bottle of claim 4, wherein the inner container further comprises a liner for containing liquid hydrogen, and the liner, the reinforcing layer, the thermal insulation layer, and the cold shield coil are arranged in sequence from inside to outside.

6. The hydrogen storage cylinder of claim 4, wherein the thermal insulation layer comprises a screen material layer and a spacer material layer, the screen material layer is a metal film, and the spacer material layer comprises one or more of a nylon mesh layer, an alkali-free glass fiber cloth layer and a finger-like fiber paper layer.

7. The hydrogen storage cylinder according to claim 4, wherein said thermal insulation layer comprises a screen material layer and a spacer material layer, said screen material layer is a plastic film layer with metal sprayed on the surface, said spacer material layer comprises one or more of nylon mesh layer, alkali-free glass fiber cloth layer, and finger fiber paper layer.

8. The hydrogen storage bottle of claim 1, further comprising a low temperature adsorbent disposed on an outer wall of the inner container and a normal temperature adsorbent disposed on an inner wall of the outer shell.

9. The hydrogen storage bottle of claim 1, wherein the cold shield coil is a stainless steel tube, one end of the cold shield coil is inserted into the inner container to communicate with the inside of the inner container, and the other end of the cold shield coil is communicated with a hydrogen pipeline to allow the liquid hydrogen in the inner container to flow out.

10. A vehicle, characterized by comprising a hydrogen storage bottle according to any one of claims 1 to 9.

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