CN212672945U

CN212672945U - Hydrogenation system

Info

Publication number: CN212672945U
Application number: CN202020907565.9U
Authority: CN
Inventors: 黄发
Original assignee: Guangdong Guolian Hydrogen Energy Technology Co ltd
Current assignee: Guangdong Guolian Hydrogen Energy Technology Co ltd
Priority date: 2020-05-26
Filing date: 2020-05-26
Publication date: 2021-03-09
Anticipated expiration: 2030-05-26

Abstract

The utility model provides a hydrogenation system, which comprises a compression system, a hydrogen storage system and a hydrogenation machine system; the compression system comprises a compressor, a hydrogen input pipe and a hydrogen output pipe; the hydrogen storage system comprises a main input pipe and a bottle group system; the bottle group system comprises a hydrogen conveying pipe, a hydrogen output pipe and a hydrogen storage bottle, and the hydrogenation machine system comprises a hydrogenation machine, a hydrogenation input pipe, a heat exchange output pipe, a cooling unit, a cold water input pipe, a cold water output pipe and a heat exchanger; the utility model discloses when filling hydrogen into hydrogen to the hydrogen storage bottle, can reduce the loss of pressure, fill into the hydrogen process steady and can wholly improve the average speed of defeated hydrogen, when adding hydrogen to the vehicle, can realize that the hydrogen flow rate is stable, pressure stability's hydrogenation mode.

Description

Hydrogenation system

Technical Field

The utility model relates to a technical field of hydrogenation, especially a hydrogenation system.

Background

The hydrogen energy industry provides hydrogen energy for fuel cells, the matched providing place is a hydrogen refueling station, the hydrogen refueling station is used for hydrogen refueling of fuel cell automobiles, and the fuel cell automobile technology is a high-efficiency zero-emission clean automobile technology which takes hydrogen as fuel and converts the hydrogen into electric energy through fuel cells as a power source; at present, after hydrogen is compressed by a compressor in a hydrogen adding station, hydrogen is filled into a hydrogen storage bottle to cause pressure loss, so that the filling speed of the hydrogen is reduced quickly, and in the hydrogen adding process, the hydrogen storage bottle is usually used for adding hydrogen to a vehicle, the hydrogen storage bottle with the same pressure is used, so that the pressure in the hydrogen adding process is not stable, and hydrogen leakage is easily caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a hydrogenation system, which can reduce the pressure loss when hydrogen is filled into a hydrogen storage bottle, and realize the hydrogenation mode with stable pressure in the hydrogenation process.

To achieve the purpose, the utility model adopts the following technical proposal:

a hydrogenation system comprises a compression system, a hydrogen storage system and a hydrogenation machine system; the compression system comprises a compressor, a hydrogen input pipe and a hydrogen output pipe; the input end of the hydrogen input pipe is a hydrogen input end, and the output end of the hydrogen input pipe is communicated to the hydrogen input end of the compressor; the input end of the hydrogen output pipe is communicated to the hydrogen output end of the compressor; the hydrogen input pipe is provided with a hydrogen input ball valve and a hydrogen input check valve; the hydrogen storage system comprises a main input pipe and a bottle group system; the bottle group system comprises a hydrogen conveying pipe, a hydrogen output pipe and a hydrogen storage bottle, wherein one end of the hydrogen conveying pipe is communicated with the main input pipe, the other end of the hydrogen conveying pipe is provided with a needle valve, and the other end of the hydrogen conveying pipe is communicated with the hydrogen storage bottle; the hydrogen conveying pipe is provided with a first valve, a hydrogen storage check valve and a second valve, the hydrogen storage check valve is arranged between the first valve and the second valve, the hydrogen output pipe is communicated to the hydrogen conveying pipe, the input end of the hydrogen output pipe is positioned between the hydrogen storage check valve and the first valve, and the hydrogen output pipe is provided with an output valve; the cylinder group system is provided with three groups, including a low-pressure cylinder group system, a medium-pressure cylinder group system and a high-pressure cylinder group system, wherein the low-pressure cylinder group system comprises low-pressure hydrogen storage cylinders, the medium-pressure cylinder group system comprises medium-pressure hydrogen storage cylinders, and the high-pressure cylinder group system comprises high-pressure hydrogen storage cylinders; the main input pipe is respectively connected with the three bottle group systems; the main input pipe is provided with a main control valve; the hydrogen storage bottle is provided with a pressure detector for detecting the gas pressure in the hydrogen storage bottle; the hydrogenation machine system comprises a hydrogenation machine, a hydrogenation input pipe, a heat exchange output pipe, a cooling unit, a cold water input pipe, a cold water output pipe and a heat exchanger; the input end of the hydrogenation input pipe is respectively connected with the output end of the hydrogen storage system and the output end of the compression system, the output end of the hydrogenation input pipe is connected with the input end of the hydrogenation machine system, and the hydrogenation input pipe is provided with a hydrogenation ball valve; the input end of the heat exchange input pipe is connected with the hydrogenation machine, and the output end of the heat exchange input pipe is connected with the heat exchanger; the input end of the heat exchange output pipe is connected with the heat exchanger, and the output end of the heat exchange output pipe is connected with the hydrogenation machine; the input end of the cold water input pipe is connected with the cooling unit, and the output end of the cold water input pipe is connected with the heat exchanger; the input end of the cold water output pipe is connected with the heat exchanger, and the output end of the cold water output pipe is connected with the cooling unit; the cold water input pipe and the cold water output pipe are both provided with a first cold water ball valve; the hydrogen pressure detection device also comprises a pressure detection meter for detecting the hydrogen pressure in the automobile fuel tank.

The hydrogenation machine system further comprises a compressed hydrogen pipe, wherein the input end of the compressed hydrogen pipe is communicated to the hydrogen output pipe, the output end of the compressed hydrogen pipe is communicated to the hydrogenation input pipe, and the compressed hydrogen pipe is provided with a compressed hydrogen valve.

Furthermore, the system also comprises a heat exchange nitrogen pipe and a third gas release pipe; the input end of the heat exchange nitrogen pipe is a heat exchange nitrogen port, and the output end of the heat exchange nitrogen pipe is communicated to the heat exchange input pipe; a sixth nitrogen ball valve and a heat exchange check valve are arranged on the heat exchange nitrogen pipe; the input end of the third air release pipe is communicated to the heat exchange output pipe, the output end of the third air release pipe is a heat exchange release port, and a heat exchange release valve is arranged on the third air release pipe.

Furthermore, the system also comprises a hydrogenation nitrogen pipe and a hydrogenation gas release pipe; the input end of the hydrogenation nitrogen pipe is a hydrogenation nitrogen port, the output end of the hydrogenation nitrogen pipe is communicated to the hydrogenation machine, and a seventh nitrogen ball valve is arranged on the hydrogenation nitrogen pipe; the input end of the hydrogenation gas release pipe is communicated to the hydrogenation machine, the output end of the hydrogenation gas release pipe is a hydrogenation release port, and a hydrogenation gas release valve is arranged on the hydrogenation gas release pipe.

The utility model has the advantages that:

the utility model provides a hydrogenation system according to above-mentioned content, when filling hydrogen to the hydrogen storage bottle, can reduce the loss of pressure, the steady average speed that just can wholly improve defeated hydrogen of hydrogen process of filling hydrogen to realize the hydrogenation mode of pressure stability in the hydrogenation process.

Drawings

FIG. 1 is a flow chart showing the steps of a hydrogenation method for hydrogen storage bottles according to the present invention;

FIG. 2 is a flow diagram of the steps of the hydrogenation process of the hydrogenation unit of the present invention;

FIG. 3 is a flow diagram of another hydrogenation process for a hydrogenation unit according to the present invention;

FIG. 4 is a flow chart illustrating steps of a method for purging a heat exchanger according to the present invention;

FIG. 5 is a flow chart of the steps of the purging method of the hydrogenation unit of the present invention;

FIG. 6 is a schematic diagram of the overall layout of the mid-range hydrotreater system of the present invention;

FIG. 7 is a schematic diagram of a compression system of the mid-range hydrotreater system of the present invention;

FIG. 8 is a schematic diagram of a bottle set system of the mid-hydrotreater system of the present invention;

FIG. 9 is a schematic diagram of a hydrogen storage system for a mid-range hydrotreater system according to the invention;

fig. 10 is a schematic diagram of a hydrogenation unit system of the middle hydrogenation unit system of the present invention.

Wherein: the system comprises a compression system 3, a compressor 31, a hydrogen input end 311, a hydrogen output end 312, a hydrogen input pipe 32, a hydrogen input ball valve 321, a hydrogen input check valve 322, a hydrogen input port 323, a hydrogen output pipe 33, a hydrogen storage system 4, a main input pipe 41, a main control valve 411, a cylinder group system 42, a low-pressure cylinder group system 4201, a medium-pressure cylinder group system 4202, a high-pressure cylinder group system 4203, a hydrogen transmission pipe 421, a first valve 4211, a hydrogen storage check valve 4212, a second valve 4213, a hydrogen output pipe 422, an output valve 4221, a hydrogen storage cylinder 423, a low-pressure cylinder 4231, a medium-pressure hydrogen storage cylinder 4232, a high-pressure hydrogen storage cylinder 4233, a hydrogenation engine system 5, a hydrogenation engine 51, a hydrogenation input pipe 511, a hydrogenation ball valve 5111, a heat exchange input pipe 512, a heat exchange nitrogen pipe 5121, a sixth nitrogen ball valve 5122, a heat exchange check valve 5123, a heat exchange nitrogen port 5124, a heat exchange output pipe 513, a third gas, A hydrogenation pipe 514, a cooling unit 52, a cold water input pipe 521, a cold water output pipe 522, a first cold water ball valve 523, a heat exchanger 53, a compressed hydrogen pipe 55, a compressed hydrogen valve 551, a hydrogenated nitrogen pipe 56, a seventh nitrogen ball valve 561, a hydrogenated nitrogen port 562, a hydrogenated gas release pipe 57, a hydrogenated gas release valve 571, and a hydrogenated gas release port 572.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 5, a hydrogenation control method including a hydrogen storage tank hydrogenation method includes the steps of:

a1: detecting the hydrogen pressure in the low-pressure hydrogen storage bottle 4231, the medium-pressure hydrogen storage bottle 4232 and the high-pressure hydrogen storage bottle 4233;

a2: judging whether the pressure of hydrogen in the low-pressure hydrogen storage bottle 4231 is less than 5MPa, if so, sequentially executing the step A3-the step A5, otherwise, returning to the step A1 for detection; judging whether the pressure of hydrogen in the medium-pressure hydrogen storage bottle 4232 is less than 16MPa, if so, sequentially executing the step A3-the step A5, otherwise, returning to the step A1 for detection; judging whether the pressure of hydrogen in the high-pressure hydrogen storage bottle 4233 is less than 26MPa, if so, sequentially executing the step A3-the step A5, otherwise, returning to the step A1 for detection;

a3: starting the compressor 31, starting the master control valve 411, starting the first valve 4211 of the high-pressure battery system 4203, introducing the compressed hydrogen into the high-pressure battery system 4203 from the master input pipe, introducing the hydrogen into the high-pressure hydrogen storage bottle 4233 from the hydrogen pipe 421 of the high-pressure battery system 4203, detecting the hydrogen pressure in the high-pressure hydrogen storage bottle 4233, and closing the first valve 4211 of the high-pressure battery system 4203 when the hydrogen pressure in the high-pressure hydrogen storage bottle 4233 reaches 45 MPa;

a4: opening a first valve 4211 of the medium-pressure cylinder group system 4202, allowing the compressed hydrogen to enter the medium-pressure cylinder group system 4202 from a main input pipe, allowing the hydrogen to enter a medium-pressure hydrogen storage cylinder 4232 from a hydrogen conveying pipe 421 of the medium-pressure cylinder group system 4202, detecting the pressure of the hydrogen in the medium-pressure hydrogen storage cylinder 4232, and closing the first valve 4211 of the medium-pressure cylinder group system 4202 when the pressure of the hydrogen in the medium-pressure hydrogen storage cylinder 4232 reaches 25 MPa;

a5: opening a first valve 4211 of the low-pressure cylinder group system 4201, enabling the compressed hydrogen to enter the low-pressure cylinder group system 4201 from a main input pipe, enabling the hydrogen to enter a low-pressure hydrogen storage cylinder 4231 from a hydrogen conveying pipe 421 of the low-pressure cylinder group system 4201, detecting the pressure of the hydrogen in the low-pressure hydrogen storage cylinder 4231, closing the first valve 4211 of the low-pressure cylinder group system 4201, closing a compressor 31 and closing a main control valve 411 when the pressure of the hydrogen in the low-pressure hydrogen storage cylinder 4231 reaches 15 MPa.

Further, the method also comprises a hydrogenation method of a hydrogenation machine, and the method comprises the following steps:

b1: the hydrogenation machine 51 is communicated with a fuel tank of a hydrogenation vehicle through a hydrogenation pipe 514, and detects the pressure of hydrogen in the vehicle;

b2: judging whether the pressure of hydrogen in the vehicle is between 0 and 15MPa, if so, opening an output valve 4221 of the low-pressure cylinder group system 4201, releasing hydrogen from a low-pressure hydrogen storage cylinder 4231, and enabling the hydrogen to enter a hydrogenation machine 51 through a hydrogen output pipe 33 of the low-pressure cylinder group system 4201;

b3: judging whether the pressure of hydrogen in the vehicle is between 16 and 25MPa, if so, opening an output valve 4221 of the medium-pressure cylinder group system 4202, releasing hydrogen from a medium-pressure hydrogen storage cylinder 4232, and enabling the hydrogen to enter a hydrogenation machine 51 through a hydrogen output pipe 33 of the medium-pressure cylinder group system 4202;

b4: judging whether the pressure of hydrogen in the vehicle is greater than 25MPa, if so, opening an output valve 4221 of the high-pressure cylinder group system 4203, discharging hydrogen from a high-pressure hydrogen storage cylinder 4233, and enabling the hydrogen to enter a hydrogenation machine 51 through a hydrogen output pipe 33 of the high-pressure cylinder group system 4203;

b5: the hydrogen entering the hydrogenation machine 51 enters the heat exchanger 53, exchanges heat with cold water of the cooling unit 52, returns to the hydrogenation machine 51, and enters a fuel tank of the hydrogenation vehicle through the hydrogenation pipe 514.

Specifically, the control method can monitor the pressure in the low-pressure hydrogen storage bottle 4231, the medium-pressure hydrogen storage bottle 4232 and the high-pressure hydrogen storage bottle 4233 in real time, so as to respectively obtain the hydrogen contents of the low-pressure hydrogen storage bottle 4231, the medium-pressure hydrogen storage bottle 4232 and the high-pressure hydrogen storage bottle 4233, when the content of one group of hydrogen storage bottles is insufficient, the compressor 31 is started, hydrogen is filled into the hydrogen storage bottles through the compressor 31, the high-pressure hydrogen storage bottle 4233 starts to be filled with hydrogen, when the pressure of the hydrogen in the high-pressure hydrogen storage bottle 4233 reaches 45Mpa, the hydrogen is stopped being filled into the high-pressure hydrogen storage bottle 4233, then the hydrogen is filled into the medium-pressure hydrogen storage bottle 4232, when the pressure of the hydrogen in the medium-pressure hydrogen storage bottle 4232 reaches 25Mpa, the hydrogen is stopped being filled into the medium-pressure hydrogen storage bottle 4232, then the hydrogen is filled into the low-pressure hydrogen storage bottle 4231 until the pressure of the hydrogen in the low-pressure hydrogen storage bottle, the pressure loss in the hydrogen input process can be reduced, the hydrogen input process is stable, and the hydrogen input speed can be improved; in addition, in the process of hydrogenating the vehicle, hydrogen storage bottles with different hydrogen pressures are selected for supplying gas according to the pressure of hydrogen in a fuel tank of the vehicle, and hydrogen is sequentially obtained from the lower-pressure hydrogen storage bottle 4231 to the higher-pressure hydrogen storage bottle 4233 for hydrogenation, so that the hydrogen can be ensured to be stable in pressure in the whole hydrogenation process, the conveying speed is stable, and the efficiency is high.

Further, the hydrogenation method of the hydrogenation machine 51 in the method further includes:

b2-1: the compressed hydrogen valve 551 is opened, the compressed hydrogen from the compressor 31 enters the compressed hydrogen pipe 55 from the hydrogen output pipe 33, and enters the hydrogenation machine 51 through the hydrogenation input pipe 511;

b5: the hydrogen gas entering the hydrogenation machine 51 enters the heat exchanger 53, exchanges heat with cold water of the cooling unit 52, returns to the hydrogenation machine 51, and is filled into a fuel tank of the hydrogenation vehicle through the hydrogenation machine 51.

Specifically, when the hydrogen storage quantity of the hydrogen storage bottle of the hydrogen storage system is insufficient, hydrogen needs to be supplemented to the hydrogen storage bottle, the hydrogen storage bottle is in an input state at the moment and cannot output hydrogen outwards, at the moment, the compressed hydrogen valve 551 is opened, the hydrogen compressed by the compressor 31 flows out from the hydrogen output pipe 33 and then enters the hydrogenation input pipe 511 from the compressed hydrogen pipe 55, so that the hydrogen enters the hydrogenation machine 51, the vehicle can be hydrogenated, uninterrupted hydrogenation is realized, and the continuous operation of the hydrogenation station is ensured.

Further, the method further comprises a purging method of the heat exchanger 53, and the steps comprise:

c1: a sixth nitrogen ball valve 5122 is opened, nitrogen enters the heat exchange nitrogen pipe 5121 from a heat exchange nitrogen port 5124 of the heat exchange nitrogen pipe 5121 and flows into the heat exchanger 53;

c2: the heat exchange release valve 5132 is opened, and the nitrogen flows out from the heat exchanger 53, passes through the third release pipe 5131, and is discharged from the heat exchange release port 5133 of the third release pipe 5131.

Specifically, because hydrogen fuel can not mix with the air, consequently can not have the combustion-supporting gas existence such as oxygen in the transmission course of hydrogen, consequently, when using, open sixth nitrogen gas ball valve 5122, nitrogen gas is followed heat transfer nitrogen gas pipe 5121 input, and input in heat exchanger 53, discharge the gaseous impurity in the heat exchanger 53, open heat transfer bleed valve 5132 simultaneously, gaseous impurity flows out and discharges gaseous impurity through heat transfer diffusion port 5133 from third bleed pipe 5131, thereby gaseous impurity in the heat exchanger 53 discharges cleanly, prevent that hydrogen and air mixing from leading to the explosion, guarantee the safety of this system use.

Further, the method also comprises a method for purging the hydrogenation machine 51, and the method comprises the following steps:

d1: opening a seventh nitrogen ball valve 531, allowing nitrogen to enter the hydrogenation nitrogen pipe 56 from a hydrogenation nitrogen port 562 of the hydrogenation nitrogen pipe 56, and then flowing into the hydrogenation machine 51;

c2: the hydrogenation purge valve 571 is opened, and the nitrogen gas flows out from the inside of the hydrogenation unit 51, passes through the hydrogenation purge pipe 57, and is discharged from the hydrogenation discharge port 572 of the hydrogenation purge pipe 57.

Specifically, in order to ensure that the hydrogen is not mixed with combustion-supporting gases such as oxygen and the like in the transmission process, the hydrogenation unit 51 needs to be subjected to impurity gas removal treatment, the seventh nitrogen ball valve 561 is opened, nitrogen enters the hydrogenation unit 51 from the hydrogenation nitrogen pipe 56, the hydrogenation release valve 571 is opened at the same time, and the impurity gas in the hydrogenation unit 51 is discharged through the hydrogenation release port 572 of the hydrogenation release pipe 57, so that the hydrogenation unit 51 is ensured to be free of the impurity gases such as air and the like, and the use safety of the system is ensured.

As shown in fig. 6-10, a hydrogenation system includes a compression system 3, a hydrogen storage system 4, and a hydrogenator system 5; the compression system 3 comprises a compressor 31, a hydrogen input pipe 32 and a hydrogen output pipe 33; the input end of the hydrogen input pipe 32 is the hydrogen input port 323, and the output end of the hydrogen input pipe 32 is communicated to the hydrogen input end 311 of the compressor 31; the input end of the hydrogen output pipe 33 is communicated to the hydrogen output end 312 of the compressor 31; the hydrogen input pipe 32 is provided with a hydrogen input ball valve 321 and a hydrogen input check valve 322; the hydrogen storage system 4 comprises a main input pipe 41 and a cylinder group system 42; the bottle group system 42 comprises a hydrogen conveying pipe 421, a hydrogen output pipe 422 and a hydrogen storage bottle 423, wherein one end of the hydrogen conveying pipe 421 is communicated with the main input pipe 41, the other end of the hydrogen conveying pipe 421 is provided with a needle valve, and the other end of the hydrogen conveying pipe 421 is communicated with the hydrogen storage bottle 423; the hydrogen conveying pipe 421 is provided with a first valve 4211, a hydrogen storage check valve 4212 and a second valve 4213, the hydrogen storage check valve 4212 is arranged between the first valve 4211 and the second valve 4213, the hydrogen output pipe 422 is communicated to the hydrogen conveying pipe 421, the input end of the hydrogen output pipe 422 is positioned between the hydrogen storage check valve 4212 and the first valve 4211, and the hydrogen output pipe 422 is provided with an output valve 4221; the cylinder battery system 42 is provided with three groups, including a low pressure cylinder battery system 4201, a medium pressure cylinder battery system 4202, and a high pressure cylinder battery system 4203, the low pressure cylinder battery system 4201 including low pressure hydrogen storage cylinders 4231, the medium pressure cylinder battery system 4202 including medium pressure hydrogen storage cylinders 4232, the high pressure cylinder battery system 4203 including high pressure hydrogen storage cylinders 4233; the main input pipe 41 is respectively connected with the three bottle group systems; the main input pipe 41 is provided with a main control valve 411; the hydrogen storage bottle 423 is provided with a pressure detector for detecting the gas pressure in the hydrogen storage bottle 423; the hydrogenation machine system 5 comprises a hydrogenation machine 51, a hydrogenation input pipe 511, a heat exchange input pipe 512, a heat exchange output pipe 513, a cooling unit 52, a cold water input pipe 521, a cold water output pipe 522 and a heat exchanger 53; the input end of the hydrogenation input pipe 511 is respectively connected with the output end of the hydrogen storage system 4 and the output end of the compression system 3, the output end of the hydrogenation input pipe 511 is connected with the input end of the hydrogenation machine system 5, and the hydrogenation input pipe 511 is provided with a hydrogenation ball valve 5111; the input end of the heat exchange input pipe 512 is connected with the hydrogenation unit 51, and the output end of the heat exchange input pipe 512 is connected with the heat exchanger 53; the input end of the heat exchange output pipe 513 is connected with the heat exchanger 53, and the output end of the heat exchange output pipe 513 is connected with the hydrogenation machine 51; the input end of the cold water input pipe 521 is connected with the cooling unit 52, and the output end of the cold water input pipe 521 is connected with the heat exchanger 53; the input end of the cold water output pipe 522 is connected with the heat exchanger 53, and the output end of the cold water output pipe 522 is connected with the cooling unit 52; the cold water input pipe 521 and the cold water output pipe 522 are both provided with a first cold water ball valve 523; the hydrogen pressure detection device also comprises a pressure detection meter for detecting the hydrogen pressure in the automobile fuel tank.

Specifically, the compressor 31 is a commercially available compressor, the hydrogen input 311 of the compressor 31 is communicated with the hydrogen input pipe 32, the hydrogen input ball valve 321 is opened, hydrogen is input into the compressor 31 from the hydrogen input 323, and the hydrogen input check valve 322 can prevent hydrogen from flowing backwards; the compressor 31 compresses hydrogen to increase the pressure of the hydrogen, and then the hydrogen is output to the hydrogen output pipe 32 from the hydrogen output end 312 and is conveyed to the hydrogenation machine system 5 to hydrogenate the hydrogenation vehicle, so that the compressed hydrogen has higher pressure, and the hydrogenation efficiency of the hydrogenation station can be improved;

when hydrogen needs to be filled into the hydrogen storage bottle 423, the first valve 4211, the second valve 4213 and a needle valve corresponding to the hydrogen storage bottle 423 are opened, hydrogen is input from the input end of the main input pipe 41 and is input into the hydrogen storage bottle 423 after passing through the hydrogen conveying pipe 421, when hydrogen needs to be provided outside the hydrogen storage bottle 423, the needle valve of the hydrogen storage bottle 423 is opened, the first valve 4211 is opened, hydrogen flows out from the hydrogen storage bottle 423, the hydrogen conveying pipe 421 is provided with the hydrogen storage check valve 4212, and backflow of hydrogen can be prevented, so that hydrogen cannot pass through the hydrogen conveying pipe 421, and hydrogen flows out from the hydrogen output pipe 422 and is output to the hydrogenation machine system to hydrogenate vehicles; at least three groups of the cylinder group systems 42, and three groups of the cylinder group systems 42 store hydrogen with different pressures, when a vehicle is hydrogenated in a hydrogenation station, hydrogen can be obtained from the cylinder group systems 42 with different pressures as required, generally, the needle valve of the cylinder group system 42 with lower pressure is opened first, the hydrogenation machine 51 obtains hydrogen, the hydrogen is injected into the vehicle, when the hydrogen pressure of the hydrogenation vehicle reaches the pressure of the hydrogen in the cylinder group system 42 with lower pressure, the needle valve of the cylinder group system 42 with lower pressure is closed, the needle valve of the cylinder group system 42 with higher pressure is opened, the hydrogenation machine system 5 injects hydrogen into the vehicle, and hydrogen is obtained from the hydrogen storage bottle 423 with low pressure to high pressure in sequence, so that a pressure stable gas filling mode can be realized by utilizing the hydrogenation of the hydrogen storage system;

in addition, the hydrogenation machine system comprises the cooling machine set 52 and a heat exchanger 53, the hydrogen filled into the hydrogenation machine 51 is input into the heat exchanger 53 through the heat exchange input pipe 512, the water of the cooling machine set 52 is input into the heat exchanger 53 through a cold water input pipe 521, the hydrogen and cold water exchange heat in the heat exchanger 53 to reduce the temperature of the hydrogen to the normal temperature or below, the hydrogen returns to the hydrogenation machine 51 through the heat exchange output pipe 513, the hydrogenation machine 51 hydrogenates the vehicle, the cold water flows back to the cooling machine set after heat exchange for cooling treatment, the hydrogen and the cold water continuously circulate and exchange heat to cool the hydrogen, and the cooling efficiency of the hydrogen is improved; the hydrogenation machine system is beneficial to improving the hydrogenation rate of the hydrogenation machine 51 and reducing the hydrogenation energy consumption by reducing the temperature of hydrogen.

Further, the hydrogenation system 5 further comprises a compressed hydrogen pipe 55, an input end of the compressed hydrogen pipe 55 is connected to the hydrogen output pipe 33, an output end of the compressed hydrogen pipe 55 is connected to the hydrogenation input pipe 511, and the compressed hydrogen pipe is provided with a compressed hydrogen valve 551.

Specifically, when the hydrogen storage amount of the hydrogen storage system 4 is insufficient, hydrogen needs to be supplemented to the hydrogen storage system 4, at this time, the hydrogen storage cylinder 423 is in an input state, and cannot output hydrogen to the outside, at this time, the compressed hydrogen valve 551 is opened, hydrogen compressed by the compressor 31 flows out from the hydrogen output pipe 33, and then enters the hydrogenation input pipe 511 from the compressed hydrogen pipe 55, so as to enter the hydrogenation machine 51, and thus, hydrogenation can be performed on a vehicle, uninterrupted hydrogenation is realized, and continuous operation of a hydrogenation station is ensured.

Further, the system also comprises a heat exchange nitrogen pipe 5121 and a third gas release pipe 5131; the input end of the heat exchange nitrogen pipe 5121 is a heat exchange nitrogen port 5124, and the output end of the heat exchange nitrogen pipe 5121 is communicated to the heat exchange input pipe 512; a sixth nitrogen ball valve 5122 and a heat exchange check valve 5123 are arranged on the heat exchange nitrogen pipe 5121; the input end of the third bleed pipe 5131 is communicated to the heat exchange output pipe 513, the output end of the third bleed pipe 5131 is a heat exchange bleed hole 5133, and the third bleed pipe 5131 is provided with a heat exchange bleed valve 5132.

Specifically, because hydrogen fuel can not mix with the air, consequently can not have the combustion-supporting gas such as oxygen to exist at the transmission course of hydrogen, consequently the utility model discloses be equipped with heat transfer nitrogen gas pipe 5121, when using, opens sixth nitrogen gas ball valve 5122, nitrogen gas is followed heat transfer nitrogen gas mouth 5124 input of heat transfer nitrogen gas pipe 5121, and input in the heat exchanger 53, the foreign gas in the heat exchanger 53 discharges, opens simultaneously heat transfer bleed valve 5132, foreign gas follow third bleed pipe 5131 flows and discharges foreign gas through heat transfer diffusion mouth 5133, thereby the foreign gas in the heat exchanger 53 discharges cleanly, prevents that hydrogen and air mixing from leading to the explosion, guarantees the safety that this system used.

Further, the system also comprises a hydrogenation nitrogen gas pipe 56 and a hydrogenation gas release pipe 57; the input end of the hydrogenation nitrogen pipe 56 is a hydrogenation nitrogen port 562, the output end of the hydrogenation nitrogen pipe 56 is communicated to the hydrogenation machine 51, and a seventh nitrogen ball valve 561 is arranged on the hydrogenation nitrogen pipe 56; the input end of the hydrogenation bleed pipe 57 is communicated to the hydrogenation machine 51, the output end of the hydrogenation bleed pipe 57 is a hydrogenation bleed opening 572, and the hydrogenation bleed pipe 57 is provided with a hydrogenation bleed valve 571.

Specifically, in order to ensure that the hydrogen is not mixed with combustion-supporting gas containing impurity gases such as oxygen during the transmission process, when the impurity gases are removed, the seventh nitrogen ball valve 561 is opened, nitrogen enters the hydrogenated nitrogen pipe 56 from the hydrogenated nitrogen port 562 and then enters the hydrogenation unit 51, and the hydrogenation purge valve 571 is opened at the same time, so that the impurity gases in the hydrogenation unit 51 are discharged through the hydrogenation purge pipe 57 and discharged through the hydrogenation purge port 572, and the hydrogenation unit 51 is ensured to be free of impurity gases such as air, and the safety of the system is ensured.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims

1. A hydrogenation system, characterized by: comprises a compression system, a hydrogen storage system and a hydrogenation machine system; the compression system comprises a compressor, a hydrogen input pipe and a hydrogen output pipe; the input end of the hydrogen input pipe is a hydrogen input port, and the output end of the hydrogen input pipe is communicated to the hydrogen input end of the compressor; the input end of the hydrogen output pipe is communicated to the hydrogen output end of the compressor; the hydrogen input pipe is provided with a hydrogen input ball valve and a hydrogen input check valve; the hydrogen storage system comprises a main input pipe and a bottle group system; the bottle group system comprises a hydrogen conveying pipe, a hydrogen output pipe and a hydrogen storage bottle, wherein one end of the hydrogen conveying pipe is communicated with the main input pipe, the other end of the hydrogen conveying pipe is provided with a needle valve, and the other end of the hydrogen conveying pipe is communicated with the hydrogen storage bottle; the hydrogen conveying pipe is provided with a first valve, a hydrogen storage check valve and a second valve, the hydrogen storage check valve is arranged between the first valve and the second valve, the hydrogen output pipe is communicated to the hydrogen conveying pipe, the input end of the hydrogen output pipe is positioned between the hydrogen storage check valve and the first valve, and the hydrogen output pipe is provided with an output valve; the cylinder group system is provided with three groups, including a low-pressure cylinder group system, a medium-pressure cylinder group system and a high-pressure cylinder group system, wherein the low-pressure cylinder group system comprises low-pressure hydrogen storage cylinders, the medium-pressure cylinder group system comprises medium-pressure hydrogen storage cylinders, and the high-pressure cylinder group system comprises high-pressure hydrogen storage cylinders; the main input pipe is respectively connected with the three bottle group systems; the main input pipe is provided with a main control valve; the hydrogen storage bottle is provided with a pressure detector for detecting the gas pressure in the hydrogen storage bottle; the hydrogenation machine system comprises a hydrogenation machine, a hydrogenation input pipe, a heat exchange output pipe, a cooling unit, a cold water input pipe, a cold water output pipe and a heat exchanger; the input end of the hydrogenation input pipe is respectively connected with the output end of the hydrogen storage system and the output end of the compression system, the output end of the hydrogenation input pipe is connected with the input end of the hydrogenation machine system, and the hydrogenation input pipe is provided with a hydrogenation ball valve; the input end of the heat exchange input pipe is connected with the hydrogenation machine, and the output end of the heat exchange input pipe is connected with the heat exchanger; the input end of the heat exchange output pipe is connected with the heat exchanger, and the output end of the heat exchange output pipe is connected with the hydrogenation machine; the input end of the cold water input pipe is connected with the cooling unit, and the output end of the cold water input pipe is connected with the heat exchanger; the input end of the cold water output pipe is connected with the heat exchanger, and the output end of the cold water output pipe is connected with the cooling unit; the cold water input pipe and the cold water output pipe are both provided with a first cold water ball valve; the hydrogen pressure detection device also comprises a pressure detection meter for detecting the hydrogen pressure in the automobile fuel tank.

2. A hydrogenation system according to claim 1, wherein: the hydrogenation machine system also comprises a compressed hydrogen pipe, wherein the input end of the compressed hydrogen pipe is communicated to the hydrogen output pipe, the output end of the compressed hydrogen pipe is communicated to the hydrogenation input pipe, and the compressed hydrogen pipe is provided with a compressed hydrogen valve.

3. A hydrogenation system according to claim 1, wherein: the device also comprises a heat exchange nitrogen pipe and a third gas release pipe; the input end of the heat exchange nitrogen pipe is a heat exchange nitrogen port, and the output end of the heat exchange nitrogen pipe is communicated to the heat exchange input pipe; a sixth nitrogen ball valve and a heat exchange check valve are arranged on the heat exchange nitrogen pipe; the input end of the third air release pipe is communicated to the heat exchange output pipe, the output end of the third air release pipe is a heat exchange release port, and a heat exchange release valve is arranged on the third air release pipe.

4. A hydrogenation system according to claim 1, wherein: also comprises a hydrogenation nitrogen pipe and a hydrogenation gas release pipe; the input end of the hydrogenation nitrogen pipe is a hydrogenation nitrogen port, the output end of the hydrogenation nitrogen pipe is communicated to the hydrogenation machine, and a seventh nitrogen ball valve is arranged on the hydrogenation nitrogen pipe; the input end of the hydrogenation gas release pipe is communicated to the hydrogenation machine, the output end of the hydrogenation gas release pipe is a hydrogenation release port, and a hydrogenation gas release valve is arranged on the hydrogenation gas release pipe.