CN218936008U

CN218936008U - Automatic high-pressure hydrogen filling unit

Info

Publication number: CN218936008U
Application number: CN202223523650.3U
Authority: CN
Inventors: 李海滨; 陈松; 周恩元; 火耿慧; 蒋佩献
Original assignee: Shanghai Mpa Fluid Power Co ltd
Current assignee: Shanghai Mpa Fluid Power Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-04-28
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to a high-pressure hydrogen automatic filling unit, and belongs to the technical field of hydrogen filling systems. The automatic hydrogen filling system mainly aims at the problem that the existing high-pressure hydrogen filling system is easy to automatically fill hydrogen, and the automatic hydrogen filling system comprises a driving gas filling part, an inlet part, a booster pump, a pilot control part and an outlet part, wherein the driving gas filling part comprises an air filter for driving gas to enter, the output end of the air filter is sequentially provided with a pressure regulating valve and a speed regulating valve, and the inlet part comprises a hydrogen filter for entering hydrogen. According to the utility model, the high-pressure hydrogen cooler is arranged at the rear end of the booster pump, an exhaust gas cooling mode is adopted, and the explosion-proof high-pressure and low-pressure pilot control valve is arranged, so that the hydrogen discharged from the booster pump is discharged through the high-pressure hydrogen cooler, and then the booster pump is automatically stopped after reaching a preset pressure, and the problem of automatic filling of the hydrogen under high pressure is solved.

Description

Automatic high-pressure hydrogen filling unit

Technical Field

The utility model relates to the technical field of hydrogen filling systems, in particular to a high-pressure hydrogen automatic filling unit.

Background

Hydrogen is a simple substance formed by hydrogen element, and is colorless, odorless, extremely easy to burn and difficult to dissolve in water at normal temperature and normal pressure. At present, a high-pressure hydrogen filling unit commonly used in the market generally depends on manual real-time observation or works through the proportion of a pneumatic pump, and the problem that the hydrogen is automatically filled under the high-pressure condition with small-molecular-weight inflammable and explosive gas cannot be solved.

Therefore, how to process the hydrogen filling system is a technical problem that needs to be solved by those skilled in the art.

Disclosure of Invention

The utility model aims to solve the problems in the background art and provides a high-pressure hydrogen automatic filling unit.

The technical scheme of the utility model is as follows: the utility model provides a high-pressure hydrogen automatic filling unit, includes the hydrogen boost automatic filling system that constitutes by drive gas filling portion, entrance, booster pump, pilot control portion and exit, drive gas filling portion is including the air cleaner who is used for driving gas to get into, and air cleaner's output has set gradually air-vent valve and governing valve, entrance is including the hydrogen cleaner who is used for hydrogen to get into, and the air inlet pressure gauge is installed to hydrogen cleaner's output, pilot control portion is including low pressure pilot control valve and the high pressure pilot control valve that is used for carrying out regulation and control to the booster pump, the exit is including setting up the high-pressure hydrogen cooler on the booster pump output, and high-pressure hydrogen cooler's output has set gradually high-pressure cut-off valve, air outlet pressure gauge and high-pressure relief valve.

Preferably, the air filter, the pressure regulating valve and the speed regulating valve are connected in series.

Preferably, the hydrogen filter and the air inlet pressure gauge are connected in series, the low-pressure pilot control valve is also connected in series on the inlet part, and the driving gas filling part and the inlet part are both arranged at the inlet end of the booster pump.

Preferably, the output end of the booster pump comprises two exhaust channels, and the high-pressure hydrogen cooler, the high-pressure cut-off valve and the air outlet pressure gauge are connected to one of the exhaust channels in series.

Preferably, the two exhaust channels are connected through a communication pipe, and the high-pressure relief valve is arranged on the communication pipe.

Preferably, a guide pipe is arranged between the high-pressure hydrogen cooler and the high-pressure cut-off valve, and the other end of the guide pipe is connected to the high-pressure pilot control valve.

Compared with the prior art, the utility model has the following beneficial technical effects:

by configuring the high-pressure hydrogen cooler at the rear end of the booster pump, adopting an exhaust gas cooling mode and being assisted with an explosion-proof high-low pressure pilot control valve, the automatic stop of the booster pump is realized after hydrogen discharged from the booster pump is discharged through the high-pressure hydrogen cooler and reaches a preset pressure, and the problem of automatic filling of hydrogen under high pressure is solved.

Drawings

Fig. 1 presents a system diagram of an embodiment of the utility model.

Reference numerals: 1. an air filter; 2. a pressure regulating valve; 3. a speed regulating valve; 4. a hydrogen gas filter; 5. an intake pressure gauge; 6. a booster pump; 7. a low pressure pilot control valve; 8. a high pressure pilot control valve; 9. a high pressure hydrogen cooler; 10. a high pressure shut-off valve; 11. an air outlet pressure gauge; 12. high pressure relief valve.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1, the high-pressure hydrogen automatic filling unit provided by the utility model comprises a hydrogen supercharging automatic filling system consisting of a driving gas filling part, an inlet part, a booster pump 6, a pilot control part and an outlet part. The driving gas filling part comprises an air filter 1 for driving gas to enter, and the output end of the air filter 1 is sequentially provided with a pressure regulating valve 2 and a speed regulating valve 3. The inlet portion includes a hydrogen filter 4 for hydrogen gas to enter, and an intake pressure gauge 5 is installed at the output end of the hydrogen filter 4. The pilot control unit includes a low-pressure pilot control valve 7 and a high-pressure pilot control valve 8 for controlling the booster pump 6. The outlet part comprises a high-pressure hydrogen cooler 9 arranged at the output end of the booster pump 6, and the output end of the high-pressure hydrogen cooler 9 is sequentially provided with a high-pressure cut-off valve 10, an air outlet pressure gauge 11 and a high-pressure relief valve 12.

In this embodiment, the pressure regulating valve 2 is provided with a pressure gauge, so as to facilitate visual observation when pressure adjustment is performed on the accessed air.

The working principle of the high-pressure hydrogen automatic filling unit based on the first embodiment is as follows: when the equipment operates, hydrogen with certain pressure is accessed through the inlet part, and then the driving gas is accessed through the driving gas filling part, so that the system can automatically operate. After passing through the booster pump 6, high-pressure hydrogen is formed, and the high-pressure hydrogen is discharged from the output end through the high-pressure hydrogen cooler 9. When the discharged gas reaches the set pressure of the high-pressure pilot control valve 8, the switch of the high-pressure pilot control valve 8 is started, and the booster pump 6 automatically stops working. When the gas entering the booster pump 6 is lower than the set pressure value of the low-pressure pilot control valve 7, the booster pump 6 is in a closed state, preventing the ineffective operation.

The hydrogen gas introduced into the booster pump 6 from the inlet is filtered by the hydrogen gas filter 4, and the filtered hydrogen gas pressure is visually observed by the intake pressure gauge 5. And a low-pressure pilot control valve 7 is used for controlling the pressure value reached by the hydrogen connected to the booster pump 6, so that the connected pressure value is prevented from being too high or too low.

The air from the driving gas filling part is connected to the booster pump 6, filtered by the air filter 1, and then is supplemented with the pressure regulating valve 2 and the speed regulating valve 3 to regulate and control the pressure value connected to the booster pump 6.

Example two

As shown in fig. 1, based on the first embodiment, this embodiment further includes: the air filter 1, the pressure regulating valve 2, and the speed regulating valve 3 are connected in series. The hydrogen filter 4 and the intake pressure gauge 5 are connected in series, and a low-pressure pilot control valve 7 is also connected in series to the inlet. The drive gas filling portion and the inlet portion are both provided at the inlet end of the booster pump 6.

In this embodiment, the air filter 1 prefilters the incoming air, while the hydrogen filter 4 prefilters the incoming hydrogen.

In this embodiment, the low-pressure pilot control valve 7 limits the pressure of the hydrogen gas connected to the booster pump 6, so as to avoid the ineffective work operation of the booster pump 6.

Example III

As shown in fig. 1, based on the first or second embodiment, the present embodiment further includes: the output end of the booster pump 6 comprises two exhaust channels, and the high-pressure hydrogen cooler 9, the high-pressure cut-off valve 10 and the air outlet pressure gauge 11 are connected to one of the exhaust channels in series. The two exhaust channels are connected through a communication pipe, a high-pressure relief valve 12 is arranged on the communication pipe, a guide pipe is arranged between the high-pressure hydrogen cooler 9 and the high-pressure cut-off valve 10, and the other end of the guide pipe is connected to the high-pressure pilot control valve 8.

In this embodiment, the high-pressure pilot control valve 8 monitors the gas passing through the high-pressure hydrogen cooler 9, and if the gas pressure value is too high, the booster pump 6 is turned off to avoid automatic filling of high-pressure hydrogen.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. The utility model provides a high-pressure hydrogen automatic filling unit, includes by drive gas filling portion, entrance, booster pump (6), the hydrogen pressure boost automatic filling system that pilot control portion and exit constitute, its characterized in that: the utility model provides a drive gas filling portion is including being used for air cleaner (1) that drive gas got into, and air cleaner (1) output has set gradually air-vent valve (2) and governing valve (3), entry portion is including hydrogen filter (4) that are used for the hydrogen to get into, and inlet pressure table (5) are installed to hydrogen filter (4) output, pilot control portion is including low pressure pilot control valve (7) and high pressure pilot control valve (8) that are used for carrying out regulation and control booster pump (6), the export portion is including setting up high-pressure hydrogen cooler (9) on booster pump (6) output, and high-pressure hydrogen cooler (9) output has set gradually high pressure cut-off valve (10), pressure gauge (11) and high pressure relief valve (12).

2. A high pressure hydrogen automatic filling unit according to claim 1, wherein: the air filter (1), the pressure regulating valve (2) and the speed regulating valve (3) are connected in series.

3. A high pressure hydrogen automatic filling unit according to claim 1, wherein: the hydrogen filter (4) is connected with the air inlet pressure gauge (5) in a serial connection mode, the low-pressure pilot control valve (7) is also connected in series with the inlet part, and the driving gas filling part and the inlet part are both arranged at the inlet end of the booster pump (6).

4. A high pressure hydrogen automatic filling unit according to claim 1, wherein: the output end of the booster pump (6) comprises two exhaust channels, and the high-pressure hydrogen cooler (9), the high-pressure cut-off valve (10) and the air outlet pressure gauge (11) are connected to one of the exhaust channels in series.

5. The high pressure hydrogen automatic filling unit according to claim 4, wherein: the two exhaust channels are connected through a communication pipe, and the high-pressure relief valve (12) is arranged on the communication pipe.

6. A high pressure hydrogen automatic filling unit according to claim 1, wherein: a guide pipe is arranged between the high-pressure hydrogen cooler (9) and the high-pressure cut-off valve (10), and the other end of the guide pipe is connected to the high-pressure pilot control valve (8).