CN211821699U - A new type of hydrogen storage bottle for hydrogen energy vehicles - Google Patents

Abstract

The utility model belongs to the technical field of new energy automobile, especially, relate to a novel hydrogen can vehicle hydrogen storage bottle. The hydrogen storage bottle comprises an inner container, an outer container, a bottle plug, a hydrogen flow channel and an air flow channel; the inner container is a contractible flexible inner container; an opening is formed above the outer liner, and the bottle plug is connected to the opening of the outer liner; an air interlayer is arranged between the inner container and the outer container; a hydrogen flow passage connection hole is formed on the inner container; the bottle stopper is provided with two through holes, namely a hydrogen flow passage through hole and an air flow passage through hole; the hydrogen flow channel is provided with a first control valve and a second control valve; and the air flow channel is provided with a third control valve and a fourth control valve. The utility model has the advantages that: the control valve is used for conveniently and quickly vacuumizing the hydrogen bottle before use, so that the air residue in the hydrogen bottle is reduced, and the hydrogen storage purity is improved; the flexible inner container can be maintained, replaced and contracted, so that hydrogen can be fully released, and the utilization rate of the hydrogen is improved.

Description

A new type of hydrogen storage bottle for hydrogen energy vehicles

technical field

The utility model belongs to the technical field of new energy vehicles, in particular to a novel hydrogen storage bottle for hydrogen energy vehicles.

Background technique

Hydrogen is known as the three major new energy sources together with solar energy and nuclear energy due to its high combustion efficiency and non-polluting products. As a new energy source, hydrogen has been widely used in aviation, power, and locomotive fuel cells. Hydrogen energy vehicles must have hydrogen storage bottles during use. Although the general hydrogen storage bottle can meet the needs of use in terms of strength and structure, its processing is relatively difficult, and due to the accumulation of use time, the purity of the hydrogen in the hydrogen storage bottle will gradually become lower, so the hydrogen storage bottle The durability is not strong and the versatility is poor.

Utility model content

The purpose of the utility model is to design a new type of hydrogen energy vehicle hydrogen storage bottle to solve the problems of low hydrogen utilization rate and low purity of the hydrogen storage bottle;

In order to solve the above problems, the present utility model provides a new type of hydrogen storage bottle for hydrogen energy vehicles, which is characterized in that it includes: an inner bladder, an outer bladder, a bottle stopper, a hydrogen flow channel and an air flow channel; the inner bladder is retractable A flexible inner bladder; an opening is arranged above the outer bladder, and the bottle stopper is connected to the opening of the outer bladder;

There is an air interlayer between the inner liner and the outer liner; the inner liner is provided with a hydrogen flow channel connection hole; the bottle stopper is provided with two through holes;

One end of the hydrogen flow channel is connected to the connecting hole of the hydrogen flow channel, and the other end is placed outside the outer bladder through a through hole of the bottle stopper; and the hydrogen flow channel is placed outside the outer bladder One end of the valve is provided with two control valves, namely the first control valve and the second control valve;

One end of the air flow channel is connected to the air interlayer, and the other end is placed outside the outer bladder through another through hole of the bottle stopper; and one end of the air flow channel is placed outside the outer bladder There are two control valves, namely the third control valve and the fourth control valve.

Further, the hydrogen flow channel and the air flow channel are inverted L shapes.

Further, the liner is replaceable;

Further, the air flow passage is connected to the external air compressor via the third control valve and the fourth control valve.

Further, the first control valve is connected to an external hydrogen source to inject hydrogen into the inner tank; the second control valve is connected to various hydrogen-using equipment of the hydrogen energy vehicle during normal use, so as to inject hydrogen into the hydrogen energy vehicle. The car provides hydrogen; the control valve is connected to the external air compressor before the hydrogen storage bottle is in normal use, so that the external air compressor can extract the air in the inner tank, and the inner tank reaches a vacuum state.

Further, the third control valve is used to control the release of the compressed air out of the air interlayer; the fourth control valve is used to control the injection of the compressed air into the air interlayer;

Further, the external air compressor has an air pressure detection function;

Further, the external hydrogen source has a gas pressure detection function;

The beneficial effects of the utility model are as follows: the use of the control valve facilitates the rapid evacuation of the hydrogen bottle before use, reduces the air residue in the hydrogen bottle, and improves the purity of hydrogen storage; the flexible inner liner can be maintained, replaced and contracted, so that the hydrogen can be fully released, and the Hydrogen utilization.

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings and examples, in the accompanying drawings:

Fig. 1 is the structural composition schematic diagram of a new type of hydrogen energy vehicle hydrogen storage bottle in the embodiment of the present utility model;

FIG. 2 is a schematic partial structural detail diagram of a hydrogen storage bottle for a new type of hydrogen energy vehicle in an embodiment of the present invention.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

The embodiments of the present utility model provide a novel hydrogen storage bottle and method for a hydrogen energy vehicle.

Please refer to FIG. 1. FIG. 1 is a schematic diagram of the structure and composition of a hydrogen storage bottle for a new type of hydrogen energy vehicle in an embodiment of the present invention, which specifically includes:

The inner bladder 1, the outer bladder 3, the bottle stopper 4, the hydrogen flow channel 5 and the air flow channel 6; the inner bladder 1 is a retractable flexible inner bladder; an opening is provided above the outer bladder 3, and the bottle stopper 4 be connected to the opening of the outer bladder 3;

There is an air interlayer 2 between the inner bladder 1 and the outer bladder 3; the inner bladder 1 is provided with a hydrogen flow channel connection hole 11; the bottle stopper 4 is provided with two through holes;

One end of the hydrogen flow channel 5 is connected to the hydrogen flow channel connection hole 11, and the other end is placed outside the outer bladder 3 through a through hole of the bottle stopper 4; The outer end of the outer bladder 3 is provided with two control valves, which are the first control valve 51 and the second control valve 52 respectively;

One end 63 of the air flow channel 6 is connected to the air interlayer 2, and the other end is placed outside the outer bladder 3 through another through hole of the bottle stopper 4; The outer end of the outer bladder 3 is provided with two control valves, which are a third control valve 62 and a fourth control valve 61 respectively.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a partial structure of a hydrogen storage bottle for a new type of hydrogen energy vehicle.

The hydrogen flow channel 5 and the air flow channel 6 are inverted L-shaped pipes.

The inner tank 1 can be replaced;

The air passage 6 is connected to the external air compressor via the third control valve 62 and the fourth control valve 61 .

The first control valve 51 is connected to an external hydrogen source to inject hydrogen into the inner tank 1; The car provides hydrogen; the control valve 52 is connected to the external air compressor before the hydrogen storage bottle is used normally, so that the external air compressor can extract the air in the inner tank 1, and the inner tank 1 reaches a vacuum state.

The third control valve 62 is used to control the release of compressed air from the air interlayer 2; the fourth control valve 61 is used to control the injection of compressed air into the air interlayer 2;

The external air compressor has the function of air pressure detection; the external hydrogen source has the function of air pressure detection; the use principle of the hydrogen cylinder is as follows:

S101: Close the first control valve 51 and the third control valve 62, and open the second control valve 52 and the fourth control valve 61;

S102: the external air compressor pulls out the air in the inner tank 1 through the second control valve 52 to make it in a vacuum state; the external air compressor injects compressed air into the air interlayer 2 through the fourth control valve 61;

S103: Determine whether the vacuum degree of the inner tank 1 reaches the preset threshold λ? If so, stop the vacuuming of the inner tank 1, close the second control valve 52, and go to step S104; otherwise, jump to step S102;

S104: Determine whether the pressure of the air interlayer 2 reaches the preset threshold β? If so, stop injecting compressed air into the air interlayer 2, and close the fourth control valve 61;

S105: Close the second control valve 52 and the fourth control valve 61, and open the first control valve 51 and the third control valve 62;

S106: The external hydrogen source injects hydrogen into the inner tank 1 through the first control valve 51; the external air compressor releases the air in the air interlayer 2 through the third control valve 62;

S107: Determine whether the pressure value of the compressed air interlayer 2 reaches the preset threshold ω? If yes, close the third control valve 62 and go to step S108; otherwise, jump to step S106;

S108: Determine whether the hydrogen pressure value of the inner tank 1 reaches the preset threshold μ? If yes, close the first control valve 51 and go to step S206; otherwise, jump to step S106;

S109: close the first control valve 51, the third control valve 62 and the fourth control valve 61, and open the second control valve 52;

S110: Is it true that the hydrogen pressure value of the inner tank 1 is less than the preset threshold δ && the pressure value of the compressed air interlayer 2 is less than the preset threshold ω? If established, the fourth control valve 61 is automatically opened, and compressed air is injected into the air interlayer 2 to completely release hydrogen; otherwise, continue to release hydrogen until the judgment conditions are met;

S111: The hydrogen release is completed.

The beneficial effects of the utility model are as follows: the use of the control valve facilitates the rapid evacuation of the hydrogen bottle before use, reduces the air residue in the hydrogen bottle, and improves the purity of hydrogen storage; the flexible inner liner can be maintained, replaced and contracted, so that the hydrogen can be fully released, and the Hydrogen utilization.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (8)

1. A novel hydrogen can vehicle hydrogen storage cylinder which characterized in that: the method comprises the following steps: the inner container (1), the outer container (3), the bottle stopper (4), the hydrogen flow channel (5) and the air flow channel (6); the inner container (1) is a contractible flexible inner container; an opening is formed above the outer liner (3), and the bottle stopper (4) is connected to the opening of the outer liner (3);

an air interlayer (2) is arranged between the inner container (1) and the outer container (3); a hydrogen flow passage hole (11) is arranged on the inner container (1); the bottle stopper (4) is provided with two through holes;

one end of the hydrogen flow channel (5) is connected to the hydrogen flow channel connecting hole (11), and the other end of the hydrogen flow channel (5) passes through a through hole of the bottle stopper (4) and is arranged outside the outer container (3); two control valves, namely a first control valve (51) and a second control valve (52), are arranged at one end of the hydrogen flow channel (5) which is arranged outside the outer container (3);

one end (63) of the air flow channel (6) is communicated with the air interlayer (2), and the other end of the air flow channel penetrates through the other through hole of the bottle stopper (4) and is arranged outside the outer container (3); and one end of the air flow channel (6) arranged outside the outer container (3) is provided with two control valves, namely a third control valve (62) and a fourth control valve (61).

2. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 1, wherein: the hydrogen flow channel (5) and the air flow channel (6) are inverted L-shaped pipelines.

3. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 1, wherein: the inner container (1) is replaceable.

4. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 1, wherein: and the air flow channel (6) is connected with an external air compressor through a third control valve (62) and a fourth control valve (61).

5. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 1, wherein: the first control valve (51) is connected to an external hydrogen source to inject hydrogen into the inner container (1); the second control valve (52) is connected to each hydrogen-using device of the hydrogen-energy automobile in normal use to supply hydrogen gas to the hydrogen-energy automobile; the control valve (52) is connected to an external air compressor before the hydrogen storage bottle is normally used, so that the external air compressor can pump out air in the inner container (1), and the inner container (1) reaches a vacuum state.

6. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 1, wherein: the third control valve (62) is used for controlling the compressed air to be released out of the air interlayer (2); the fourth control valve (61) is used for controlling the injection of compressed air into the air interlayer (2).

7. The novel hydrogen-energy vehicle hydrogen storage cylinder as claimed in claim 4, wherein: the external air compressor has an air pressure detection function.

8. The novel hydrogen-powered vehicle hydrogen storage cylinder as claimed in claim 5, wherein: the external hydrogen source has an air pressure detection function.

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