CN215335785U

CN215335785U - Hydrogen filling machine

Info

Publication number: CN215335785U
Application number: CN202121851033.9U
Authority: CN
Inventors: 于蓬; 薛彬
Original assignee: Shandong Quanhydrogen Power Technology Co ltd
Current assignee: Shandong Quanhydrogen Power Technology Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2021-12-28
Anticipated expiration: 2031-08-10

Abstract

The utility model discloses a hydrogen filling machine which comprises an air filtering device, a first gas booster pump, a second gas booster pump, a third gas booster pump, a hydrogen radiating device and a hydrogenation gun, wherein a driving gas pressure sensor and a driving gas switch are connected on the air filtering device in series, the driving gas switch is respectively connected with the first gas booster pump, the second gas booster pump and the third gas booster pump in a three-phase manner, and the first gas booster pump, the second gas booster pump and the third gas booster pump are simultaneously connected with an air inlet valve. Compared with the prior art, the method has the advantages that: the hydrogen feeder adopts a pure gas driving mode to realize that the three gas booster pumps boost the hydrogen, meanwhile, special pressure sensors are arranged in the processes of air driving, hydrogen gas inlet and hydrogen gas outlet, a pressure relief valve is arranged at overpressure, and the boosted hydrogen is also subjected to cooling and heat dissipation treatment, so that potential safety hazards caused by dangerous factors such as electricity, sparks, overpressure, overtemperature and the like can be avoided in the whole hydrogen filling process.

Description

Hydrogen filling machine

Technical Field

The utility model relates to the technical field of hydrogenation, in particular to a hydrogen filling machine.

Background

Hydrogen (H), the first ranking in the periodic table of elements, is one of the earth's important constituent elements and also one of the most common substances in the universe. Whether hydrogen is combusted or through the electrochemical reaction of the fuel cell, the product is only water, and no pollutants and carbon emissions are generated by the traditional energy utilization. In addition, the generated water can be continuously used for producing hydrogen and can be recycled, so that low carbon and even zero carbon emission are really realized, and the greenhouse effect and the environmental pollution are effectively relieved. The hydrogen can be widely applied to the fields of energy, transportation, industry, building and the like. The fuel cell can be directly used for providing high-efficiency raw materials, reducing agents and high-quality heat sources for industries such as refining, steel, metallurgy and the like, effectively reducing carbon emission, can be applied to the fields of automobiles, rail transit, ships and the like through the fuel cell technology, reduces the dependence of long-distance high-load traffic on petroleum and natural gas, can be applied to distributed power generation, and supplies power and heats for family houses, commercial buildings and the like.

The hydrogenation infrastructure is the terminal of the hydrogen energy supply chain, and the hydrogenation station is an important link for constructing the hydrogen energy industrial chain. The equipment cost of the hydrogenation station is high, and in the total hydrogenation cost, the hydrogenation machine occupies a high proportion in the links of construction investment and maintenance. The hydrogenation machine is the core equipment for adding hydrogen fuel into fuel cell automobile, and because of the characteristics of the equipment itself, the operation conditions of the equipment are quite harsh and need to be in the environment of high temperature, high pressure, flammability, explosiveness and hydrogen. In view of the current market development, the volume of the hydrogen fuel cell automobile is not enough to support the large-scale production of hydrogenation machine manufacturers.

Aiming at the requirements of no excess temperature, no excess pressure and no overcharge during the hydrogen filling process, short time, safety, accuracy and reliability, the novel hydrogenation machine for 35MPa quick hydrogenation is developed by fully considering various working conditions and factors such as the precision and the service life of key parts on the basis of a high-precision temperature and speed prediction method, and is a hydrogenation machine device which simultaneously accords with the compressed hydrogen gas filling machine for GBT31138-2014 automobiles and the related standard of ISO19880/SAEJ 2601/2.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the technical difficulties and provide a hydrogen filling machine which can perform better and safer hydrogenation.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a hydrogen filling machine, includes air filter equipment, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three, hydrogen heat abstractor and hydrogenation rifle, it has drive gas pressure sensor and drive the gas switch to establish ties on the air filter equipment, it is connected with gaseous booster pump one, gaseous booster pump two, gaseous booster pump three-phase respectively to drive the gas switch, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three are connected with the admission valve simultaneously, the last admission pressure sensor that has arranged of admission valve, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three are connected with hydrogen heat abstractor simultaneously, hydrogen heat abstractor is last to be connected with hydrogenation rifle through the hydrogenation hose, is provided with the relief valve on the hydrogen heat abstractor.

As an improvement, the first gas booster pump, the second gas booster pump and the third gas booster pump respectively comprise a driving piston, a first limiter and a second limiter.

Compared with the prior art, the utility model has the advantages that: the hydrogen adding machine adopts a pure gas driving mode to realize that the three gas booster pumps boost hydrogen, meanwhile, special pressure sensors are arranged in the processes of air driving, hydrogen gas inlet and hydrogen gas outlet, a pressure relief valve is also arranged at overpressure, and the boosted hydrogen is also subjected to cooling and heat dissipation treatment, so that potential safety hazards caused by dangerous factors such as electricity, sparks, overpressure, overtemperature and the like can be avoided in the whole hydrogen adding process, the hydrogenation safety is ensured, and meanwhile, the automation and the rapidness of hydrogen output are also realized by the parallel arrangement of the three gas booster pumps.

Drawings

Fig. 1 is a schematic structural diagram of a hydrogen gas filling machine according to the present invention.

FIG. 2 is a schematic diagram of a gas booster pump of a hydrogen gas filling machine according to the present invention.

Fig. 3 is a schematic diagram of a hydrogen heat dissipation device of a hydrogen filling machine according to the present invention.

As shown in the figure: 1. driving air; 2. an air filtration device; 3. a drive gas pressure sensor; 4. driving an air switch; 5. a first gas booster pump; 501. a first hydrogen inlet; 502. a one-way valve I; 503. a first hydrogen pressurizing area; 504. a second one-way valve; 505. an air inlet I; 506. an air inlet II; 507. a first limiter; 508. a second limiter; 509. a piston; 510. a first air driving area; 511. a second air driving area; 512. a first air outlet; 513. a second hydrogen inlet; 514. a one-way valve III; 515. a hydrogen pressurizing area II; 516. a one-way valve IV; 517. a first hydrogen outlet; 6. a second gas booster pump; 7. a third gas booster pump; 8. an intake valve; 9. an intake air pressure sensor; 10. a hydrogen gas source; 11. a hydrogen heat sink; 111. a hydrogen inlet III; 112. a hydrogen flow zone; 113. a second hydrogen outlet; 114. an air inlet III; 115. an air flow region; 116. an air outlet II; 12. a hydrogenation hose; 13. a hydrogenation gun; 14. a hydrogenation port of a device to be hydrogenated; 15. an outlet gas pressure sensor; 16. a pressure relief valve; 17. and (4) exhausting holes.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

The present invention will be described in further detail with reference to the accompanying drawings.

Firstly, external driving air 1 respectively enters a gas booster pump I5, a gas booster pump II 6 and a gas booster pump III 7 through an air filtering device 2, and a driving air pressure sensor 3 and a driving air switch 4 are arranged between the air filtering device 2 and the three gas booster pumps, wherein the driving air pressure sensor 3 controls the air flow and the pressure entering the gas booster pumps by monitoring the pressure of the driving air so as to ensure the normal operation of the gas booster pumps, the driving air switch 4 is used for controlling the driving air to enter or stop entering the gas booster pumps, and the driving air switch 4 is closed to stop the entering of the driving air if the driving air pressure sensor 3 monitors that the pressure is too high or insufficient; meanwhile, a hydrogen gas source 10 passes through the gas inlet valve 8, and a gas inlet pressure sensor 9 is arranged between the gas inlet valve 8 and the gas inlet pressure sensor 9 and used for monitoring the pressure of injected hydrogen, when the gas inlet pressure sensor 9 monitors that the pressure is normal, the gas inlet valve 8 is opened, hydrogen enters the gas booster pump I5, the gas booster pump II 6 and the gas booster pump III 7 respectively, and when the gas inlet pressure sensor 9 monitors that the hydrogen injection pressure is too high or insufficient, the gas inlet valve 8 is closed, so that the hydrogen injection can be stopped; then, under the condition that the air inlet pressure is normal, driving air and hydrogen respectively enter the three gas booster pumps at the same time, driving the air to drive the piston to reciprocate up and down to boost the hydrogen, then the air and the boosted hydrogen respectively enter the hydrogen heat dissipation device 11, the air in the device carries away the heat of the pressurized high-temperature hydrogen, and the cooled hydrogen sequentially passes through the hydrogenation hose 12 and the hydrogenation gun 13 and is finally injected into the hydrogenation port 14 of the equipment to be hydrogenated, so that the whole hydrogenation process is completed. In addition, in a specific situation, if the pressure of the separated hydrogen is too large, the separated hydrogen can be monitored by the gas outlet pressure sensor 15, and the safety operation of the equipment is ensured by opening the pressure release valve 16 to discharge the hydrogen from the exhaust hole 17.

The hydrogen boosting process in the gas booster pump is as follows (the boosting principles of the first gas booster pump 5, the second gas booster pump 6 and the third gas booster pump 7 are the same, and we take the boosting process of the first gas booster pump 5 as an example here):

hydrogen enters from a first hydrogen inlet 501 and a second hydrogen inlet 513 respectively and enters a first hydrogen pressurizing area 503 and a second hydrogen pressurizing area 515 through a first one-way valve 502 and a third one-way valve 514 respectively; meanwhile, air enters the air driving area II 511 from the air inlet II 506, the piston 509 moves upwards under the driving of the air to enable the compressed volume of the hydrogen pressurizing area I503 to be reduced, so that the pressure of the hydrogen in the hydrogen pressurizing area I503 is increased, and the pressurized hydrogen cannot flow back due to the design that the one-way valve I502 can only discharge from the one-way valve II 504, when the piston moves upwards to the limiter I507, the air inlet II 506 is closed to stop air inlet, the air inlet I505 is opened to start air inlet, similarly, under the driving of the air, the piston 509 starts to move downwards, the volume of the hydrogen pressurizing area II 515 is increased due to the upward movement of the piston to form a vacuum area, at the moment, the hydrogen is sucked into the hydrogen pressurizing area II 515 from the hydrogen inlet II 513 through the one-way valve III 514 to fill the vacuum area, and along with the downward movement of the piston 509, the compressed volume of the second hydrogen pressurizing area 515 is reduced, so that the pressure of hydrogen in the second hydrogen pressurizing area 515 is increased, the pressurized hydrogen cannot flow back and can only be discharged from the fourth one-way valve 516 due to the design that the second one-way valve 514 can only enter in one way, when the piston moves downwards to the second limiter 508, the first air inlet 505 is closed to stop air intake, meanwhile, the second air inlet 506 is opened to start air intake, the reciprocating cycle is carried out, the piston 509 is driven to reciprocate upwards and downwards, so that the hydrogen in the first hydrogen pressurizing area 503 and the second hydrogen pressurizing area 515 is repeatedly and continuously pressurized, then the hydrogen passes through the second one-way valve 504 and the fourth one-way valve 516 respectively and is discharged from the hydrogen outlet 517 together, and part of air is discharged from the first air outlet 512 in the air driving process.

The hydrogen heat dissipation process in the hydrogen heat dissipation device 11 is as follows:

the pressurized hydrogen gas discharged from the first hydrogen outlet 517 enters the third hydrogen inlet 111, and flows in the direction indicated by the arrow in the hydrogen flow region 112; meanwhile, the air discharged from the first air outlet 512 enters the third air inlet 114, flows through the air flow region 115 along the direction indicated by the arrow, cools and dissipates the hydrogen in the hydrogen flow region 112 during the flow process, the cooled hydrogen is discharged from the second hydrogen outlet 113, and the air with heat is discharged from the second air outlet 116.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a hydrogen filling machine which characterized in that: including air filter equipment, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three, hydrogen heat abstractor and hydrogenation rifle, it has drive gas pressure sensor and drive the gas switch to establish ties on the air filter equipment, it is connected with gaseous booster pump one, gaseous booster pump two, gaseous booster pump three-phase respectively to drive the gas switch, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three are connected with the admission valve simultaneously, the admission pressure sensor has been arranged on the admission valve, gaseous booster pump one, gaseous booster pump two, gaseous booster pump three are connected with hydrogen heat abstractor simultaneously, last the being connected with hydrogenation rifle through the hydrogenation hose of hydrogen heat abstractor, the last relief valve that is provided with of hydrogen heat abstractor.

2. A hydrogen gas filling machine according to claim 1, characterized in that: the first gas booster pump, the second gas booster pump and the third gas booster pump respectively comprise a driving piston, a first limiter and a second limiter.