CN220397250U

CN220397250U - Filling system of hydrogenation machine and hydrogenation machine

Info

Publication number: CN220397250U
Application number: CN202321925890.8U
Authority: CN
Inventors: 肖勇; 刘启才; 王志民
Original assignee: Sany Hydrogen Energy Co ltd
Current assignee: Sany Hydrogen Energy Co ltd
Priority date: 2023-07-20
Filing date: 2023-07-20
Publication date: 2024-01-26
Anticipated expiration: 2033-07-20

Abstract

The utility model relates to the technical field of hydrogen filling equipment, and provides a filling system of a hydrogenation machine, which comprises the following components: one end of the filling pipeline is an air inlet end and is used for connecting a hydrogen source, and the other end of the filling pipeline is an air outlet end; the hydrogenation gun is arranged at the air outlet end of the filling pipeline; the flow regulating valve is a pneumatic valve and is arranged on the filling pipeline; the driving air path is used for connecting the instrument air source and the flow regulating valve and providing a driving air source for the flow regulating valve. Through drive gas circuit connection instrument air supply and flow control valve, can provide the drive air supply for the flow control valve to adjust the hydrogen flow in the filling line, compare in the electric flow control valve and the manual flow control valve of using, both guaranteed flow control's convenience, satisfy hydrogen fire prevention, explosion-proof demand simultaneously, in addition, can provide stable air supply for the flow control valve through the drive gas circuit, guaranteed the stability of flow control valve frequent, long-time operation.

Description

Filling system of hydrogenation machine and hydrogenation machine

Technical Field

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

Background

The hydrogen energy is widely focused at home and abroad as a clean energy source, and along with the continuous progress of high-pressure hydrogen filling, transportation and storage technologies, the hydrogen energy industry develops rapidly, and the number of hydrogen production and hydrogenation stations is increased. The hydrogenation machine is used as one of core components of the hydrogenation station, and the convenience and safety of operation of the hydrogenation machine directly influence the experience of a user.

In the related art, a pressurized hydrogen source and a hydrogenation gun are connected through a filling pipeline, and the hydrogenation gun is used for filling hydrogen into the hydrogen storage bottle group. However, in the initial stage of hydrogenation, the filling rate is too high due to the large pressure difference between the hydrogen source and the hydrogen storage bottle group, so that the filling temperature can be quickly raised, and a certain potential safety hazard exists.

Disclosure of Invention

The utility model provides a filling system of a hydrogenation machine and the hydrogenation machine, which are used for reducing the problem that the hydrogen flow is difficult to stabilize and safely regulate in the prior art and realizing the stable and safe regulation of the hydrogen filling speed.

The utility model provides a filling system of a hydrogenation machine, which comprises:

one end of the filling pipeline is an air inlet end and is used for connecting a hydrogen source, and the other end of the filling pipeline is an air outlet end;

the hydrogenation gun is arranged at the air outlet end of the filling pipeline;

the flow regulating valve is a pneumatic valve and is arranged on the filling pipeline;

the driving air circuit is used for connecting an instrument air source with the flow regulating valve and providing a driving air source for the flow regulating valve, and the driving air circuit is provided with an air circuit regulating valve for regulating the pressure of the driving air source entering the flow regulating valve.

According to the present utility model, there is provided a filling system for a hydrogenation machine, the filling pipe comprising:

the hydrogenation gun is connected to the air outlet end of the filling pipeline, and the flow regulating valve is arranged in the filling pipeline.

The first passage is used for connecting a first hydrogen source with the air inlet end of the filling pipeline, and a first control valve is arranged on the first passage;

a second passage for connecting a second hydrogen source with the inlet end of the filling pipe, the second passage being provided with a second control valve;

and the third passage is used for connecting a third hydrogen source with the air inlet end of the filling pipeline, and a third control valve is arranged on the third passage.

According to the filling system of the hydrogenation machine, provided by the utility model, the filling pipeline is provided with the pressure transmitter and/or the temperature transmitter, and the pressure transmitter and/or the temperature transmitter are/is used for acquiring the filling pressure and/or the filling temperature of the air outlet end of the filling pipeline.

According to the filling system of the hydrogenation machine, provided by the utility model, the first control valve, the second control valve and the third control valve can disconnect the first passage, the second passage and the third passage according to the feedback of the filling pressure and/or the filling temperature.

The filling system of the hydrogenation machine provided by the utility model further comprises a vent pipeline communicated with the filling pipeline, and the vent pipeline is used for diffusing hydrogen in the filling pipeline.

According to the filling system of the hydrogenation machine, the emptying pipeline is communicated with the filling pipeline through the emptying passage, and the emptying valve is arranged on the emptying passage and used for controlling the on-off of the emptying passage.

According to the filling system of the hydrogenation machine, the emptying pipeline is communicated with the filling pipeline through the bleeding branch, and the bleeding branch is connected with the safety valve.

According to the filling system of the hydrogenation machine provided by the utility model, the hydrogenation gun is provided with the hydrogen return port, and the hydrogen return port is communicated with the emptying pipeline.

According to the filling system of the hydrogenation machine, provided by the utility model, the relief branch is provided with the stop valve between the filling pipe and the safety valve.

According to the filling system of the hydrogenation machine, provided by the utility model, the first control valve, the second control valve and the third control valve are all electromagnetic valves.

According to the filling system of the hydrogenation machine, the filling pipeline is flexibly connected with the hydrogenation gun through the hydrogenation pipe.

According to the filling system of the hydrogenation machine, provided by the utility model, a snap-off valve is arranged between the hydrogenation hose and the filling pipeline.

According to the filling system of the hydrogenation machine, check valves are arranged on the branches of the first passage, the second passage and the third passage.

The utility model also provides a hydrogenation machine, which comprises the hydrogenation machine filling system.

The hydrogenation machine provided by the utility model further comprises a hydrogen leakage detector and/or a temperature detector.

According to the filling system of the hydrogenation machine and the hydrogenation machine, provided by the utility model, the air source, the air path regulating valve and the flow regulating valve are connected through the driving air path, so that the driving air source can be provided for the flow regulating valve, the pressure of the driving air source entering the flow regulating valve can be regulated through the air path regulating valve, and the opening degree of the valve of the flow regulating valve is regulated, so that the filling speed of the hydrogen in the main hydrogen pipeline is regulated, and the flow regulating valve can regulate the hydrogen flow in the filling pipeline according to the parameters such as the pressure difference between the actual hydrogen source and the hydrogen storage bottle group, the filling temperature and the like.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a filling system of a hydrogenation machine according to an embodiment of the present utility model.

Reference numerals:

10. a flow regulating valve; 11. driving the air circuit; 110. a first air path valve; 111. a second air path valve; 20. filling a pipeline; 200. a first filling line; 201. a second filling line; 21. filling a hose; 22. a snap-off valve; 23. a mass flowmeter; 24. a filling valve; 25. a pressure transmitter; 26. a temperature transmitter; 27. a pressure gauge; 30. a first passage; 300. a first electromagnetic valve; 301. a second electromagnetic valve; 302. a first air supply valve; 31. a second passage; 310. a third electromagnetic valve; 311. a fourth electromagnetic valve; 312. a second air supply valve; 32. a third passage; 320. a fifth electromagnetic valve; 321. a sixth electromagnetic valve; 322. a third air supply valve; 33. a check valve; 34. a filter; 40. a vent line; 41. a relief passage; 42. a blow-off valve; 420. a first vent valve; 421. a second vent valve; 43. a bleeding branch; 44. a hydrogen return port; 45. a safety valve; 450. a first safety valve; 451. a second safety valve; 46. a stop valve; 460. a first stop valve; 461. a second shut-off valve; 50. a hydrogen leak detector; 60. a temperature sensor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to facilitate understanding of the filling system of the hydrogenation machine and the hydrogenation machine provided by the utility model, the application background of the filling system is firstly described, the hydrogenation machine is one of core components of a hydrogenation station, a filling pipeline is arranged in the hydrogenation machine, one end of the filling pipeline is connected with a hydrogen source, the other end of the filling pipeline is connected with a hydrogenation gun, and hydrogen is filled into a hydrogen storage bottle group by utilizing pressure difference. In the initial stage of hydrogenation, the filling speed is too high due to the fact that the internal pressure difference between a hydrogen source and a hydrogen storage bottle group is too large, so that the filling temperature rises rapidly, a certain potential safety hazard exists, and therefore a flow regulating mechanism is arranged on a filling pipeline and used for regulating the filling speed of hydrogen, but the hydrogen is inflammable and explosive gas, and safe and stable flow control is difficult to carry out. Therefore, the utility model provides a filling system of a hydrogenation machine and the hydrogenation machine, which are used for safely and stably regulating the flow of hydrogen.

The hydrotreater charging system and the hydrotreater of the present utility model are described below with reference to fig. 1.

Referring to fig. 1, a filling system of a hydrogenation machine comprises a filling pipeline, a hydrogenation gun, a flow regulating valve 10 and a driving gas circuit 11; wherein, one end of the filling pipeline is an air inlet end and is used for being connected with a hydrogen source with pressure, the other end of the filling pipeline is an air outlet end, and the hydrogenation gun is connected with the air outlet end of the filling pipeline and is used for filling hydrogen into the hydrogen storage bottle group. The flow regulating valve 10 is a pneumatic valve and is arranged on the filling pipeline and is used for regulating the flow of the hydrogen in the filling pipeline so as to regulate the filling speed of the hydrogen; one end of the driving air path 11 is used for connecting with an instrument air source, and the other end of the driving air path is connected with the flow regulating valve 10 through an air path regulating valve and is used for providing a driving air source for the flow regulating valve 10.

In actual operation, the instrument air source is connected with the flow regulating valve 10 through the driving air path 11 and the air path regulating valve, so that a driving air source can be provided for the flow regulating valve 10, and the air path regulating valve can regulate the pressure of the driving air source entering the flow regulating valve 10, thereby regulating the size of the valve opening of the flow regulating valve 10 and further regulating the filling speed of hydrogen in a filling pipeline.

During specific implementation, parameters such as pressure difference and filling temperature of an actual hydrogen source and a hydrogen storage bottle group of the fuel cell vehicle are collected, and the opening of a valve port of the flow regulating valve 10 is controlled by regulating the outlet pressure of the gas circuit regulating valve, so that the hydrogen flow in a filling pipeline is regulated, and compared with a common electric flow regulating valve and a manual flow regulating valve, the convenience of flow regulation is ensured, the requirements of hydrogen fire prevention and explosion prevention are met, and in addition, a stable gas source can be provided for the flow regulating valve 10 by driving the gas circuit 11, so that the stability of frequent and long-time operation of the flow regulating valve 10 is ensured.

The filling line comprises a filling line 20, a first passage 30, a second passage 31 and a third passage 32; the filler pipe 20 has an inlet end and an outlet end; the hydrogenation gun is connected to the air outlet end of the filling pipe 20 through the filling hose 21, a breaking valve 22 is connected between the filling hose 21 and the filling pipe 20, and in the hydrogenation process, when the hydrogenation gun or the filling hose 21 receives external tension to reach a certain value, the filling hose 21 can actively fall off, and meanwhile, the breaking valve 22 is closed, so that the danger of hydrogen leakage is prevented; the flow regulating valve 10 is arranged on the filling pipe 20.

The first passage 30, the second passage 31 and the third passage 32 are all connected to the air inlet end of the filler pipe 20; the first passage 30 is used for connecting a first hydrogen source with the filling pipe 20, and a first control valve is arranged on the first passage 30 and used for controlling the on-off of the first passage 30; the second passage 31 is used for connecting a second hydrogen source and the filling pipe 20, and a second control valve is arranged on the second passage 31 and used for controlling the on-off of the second passage 31; the third passage 32 is used for connecting a third hydrogen source with the filling pipe 20, and a third control valve is arranged on the third passage 32 and used for controlling the on-off of the third passage 32.

By selectively opening and closing the first control valve, the second control valve and the third control valve, hydrogen can be filled into the hydrogen storage bottle group of the fuel cell vehicle according to the sequence, when the hydrogen starts to be filled, the first control valve is firstly opened, when the pressure difference between the hydrogen pressure in the hydrogen storage bottle group of the fuel cell vehicle and the first hydrogen source reaches a preset value, for example, less than 2MPa, the first control valve is closed, the second control valve is opened, the hydrogen continues to be filled into the hydrogen storage bottle group, and when the pressure difference between the hydrogen pressure in the hydrogen storage bottle group and the second hydrogen source reaches a preset value, for example, less than 2MPa, the first control valve is closed, and the third control valve is opened until the hydrogen in the hydrogen storage bottle group reaches a preset pressure.

The mass flowmeter 23 is arranged on the filling pipe 20 and located at the upstream of the flow regulating valve 10 and used for measuring the flow of hydrogen passing through the filling pipe 20, the filling valve 24 is arranged on the downstream of the flow regulating valve 10 and used for controlling the on-off of the filling pipe 20, the pressure transmitter 25 is arranged between the flow regulating valve 10 and the filling valve 24, the pressure transmitter 25 can collect the pressure of the hydrogen in the filling pipe 20 and feed the pressure signal back to the controller, and the pressure value can be displayed through the digital display module.

When the internal leakage detection is performed, the filling valve 24 is closed, the first control valve, the second control valve or the third control valve is alternatively opened, a small amount of hydrogen is introduced into the filling pipeline 20, the introduction amount can be determined by the mass flowmeter 23, then the opened first control valve, second control valve or third control valve is closed, the pressure value at the moment is recorded, after a period of time, the pressure value is recorded again, and the internal leakage condition is determined by the change value of the pressure so as to perform timely maintenance.

A temperature transmitter 26 and a pressure gauge 27 are further arranged between the flow regulating valve 10 and the filling valve 24, wherein the pressure gauge 27 can display the hydrogen pressure in the filling pipe 20 through an instrument panel, so that staff can observe the working pressure intuitively, and the pressure value acquired by the pressure transmitter 25 can be compared conveniently. The temperature transmitter 26 is used for collecting the filling temperature of the air outlet end of the filling pipeline 20 and feeding back a temperature signal to the controller, and when the difference value between the filling temperature or the air source pressure and the pressure of the hydrogen storage bottle group exceeds a preset value, the controller sends out a control signal to close the first control valve, the second control valve and the third control valve, so that the hydrogen filling is stopped, and the safety is ensured.

Referring to fig. 1, the hydro-generator charging system further includes a vent line 40, the vent line 40 being for connecting a purge column; the hydrogenation gun is provided with a hydrogen return port 44, the hydrogen return port 44 is connected with the emptying pipeline 40, after hydrogen filling is completed, the hydrogen return port 44 is opened, residual hydrogen in the hydrogenation gun and the filling pipeline 20 can be diffused through the hydrogen return port 44, and convenience and safety of hydrogen diffusion are considered.

The filling pipe 20 is communicated with the vent pipe 40 through the vent passage 41, the vent valve 42 is arranged on the vent passage 41 and used for controlling the on-off of the vent passage 41, and when elements such as the pressure gauge 27, the safety valve 45 and the like are verified and replaced and the gas leakage is replaced, the vent valve 42 is opened, so that the filling pipe 20 is communicated with the vent pipe 40, and residual gas in the filling pipe 20 can be directly diffused into the atmosphere.

A diffusing branch 43 is communicated between the filling pipe 20 and the diffusing passage 41, and a safety valve 45 is arranged on the diffusing branch 43, so that the danger of the filling pipe 20 caused by overpressure is avoided; a stop valve 46 is arranged between the safety valve 45 and the filling pipe 20 and is used for controlling the on-off of the safety valve 45 and the filling pipe 20, so that the check sum of the safety valve 45 is convenient to replace.

It will be appreciated that the filling pipe 20 may be provided in one or more than one, and that when the filling pipe 20 is provided in more than one, the first, second and third passages 30, 31 and 32 need to be provided with corresponding branches and valves, and single or multi-gun filling is achieved by cooperation between the respective valves.

In this embodiment, two filling pipes 20 are provided, and for convenience of understanding, one of the filling pipes 20 is set as a first filling pipe 200, and the other is set as a second filling pipe 201; accordingly, the flow regulating valve 10 is provided in two and is provided on the first charging line 200 and the second charging line 201, respectively. The driving air path 11 has two branches and is connected to the two flow regulating valves 10, respectively, so as to provide driving air sources for the two flow regulating valves 10, respectively. The two branches of the driving air path 11 are respectively provided with the air path regulating valves, namely a first air path valve 110 and a second air path valve 111, wherein the first air path valve 110 is used for controlling the on-off of an instrument air source and the flow regulating valve 10 on the first filling pipeline 200, regulating the pressure of the driving air source entering the flow regulating valve 10 according to the requirement, and regulating the opening size of the valve of the flow regulating valve 10 so as to regulate the hydrogen flow in the first filling pipeline 200; the second air path valve 111 is used for controlling the on-off of the instrument air source and the flow regulating valve 10 on the second filling pipeline 201, and can regulate the pressure of the driving air source entering the flow regulating valve 10 according to the requirement, and regulate the opening size of the valve of the flow regulating valve 10, thereby regulating the hydrogen flow in the second filling pipeline 201.

Specifically, the first air path valve 110 and the second air path valve 111 are electric proportional pressure regulating valves, and can regulate the pressure of the driving air source entering the flow regulating valve 10 according to the electric signal.

Correspondingly, the vent passage 41 communicated with the first filling pipeline 200 is a first vent passage, and the vent valve 42 in the first vent passage is a first vent valve 420; the relief passage 41 communicating with the second filling line 201 is a second relief passage, and the relief valve 42 in the second relief passage is a second relief valve 421.

Correspondingly, the bleeding branch 43 communicated with the first filling pipeline 200 is a first bleeding branch, the safety valve 45 on the first bleeding branch is a first safety valve 450, and the stop valve 46 is a first stop valve 460; the relief branch 43 communicating with the second filling line 201 is a second relief branch, the relief valve 45 on the second relief branch is a second relief valve 451, and the shutoff valve 46 is a second shutoff valve 461.

Correspondingly, the first passage 30 has a main passage and two branches, the two branches are respectively communicated with the first filling pipeline 200 and the second filling pipeline 201, the first control valve has two branches and is respectively arranged on the two branches of the first passage 30, the first control valve is an electromagnetic valve, one of the first control valves is the first electromagnetic valve 300 and is used for controlling the on-off of the first hydrogen source and the first filling pipeline 200, and the other is the second electromagnetic valve 301 and is used for controlling the on-off of the first hydrogen source and the second filling pipeline 201.

A check valve 33 is provided on each branch of the first passage 30 downstream of the first control valve to prevent the reverse flow of hydrogen; a first gas supply valve 302 is disposed on the main path of the first passage 30 and is used for controlling the on-off of the first passage 30 and the first hydrogen source, and a hydrogen filter 34 is disposed on the main path of the first passage 30 downstream of the first gas supply valve 302 and is used for filtering impurities of hydrogen.

Correspondingly, the second passage 31 has a main passage and two branches, the two branches are respectively communicated with the first filling pipeline 200 and the second filling pipeline 201, the second control valve has two and is respectively arranged on the two branches of the second passage 31, the second control valve is a solenoid valve, one of the second control valve and the second control valve is a third solenoid valve 310 for controlling the on-off of the second hydrogen source and the first filling pipeline 200, and the other of the second control valve and the fourth solenoid valve 311 for controlling the on-off of the second hydrogen source and the second filling pipeline 201.

A check valve 33 is provided on each branch of the second passage 31 downstream of the second control valve to prevent the reverse flow of hydrogen; a second gas supply valve 312 is provided on the main path of the second path 31 for controlling the on-off of the second path 31 and the second hydrogen source, and a hydrogen filter 34 is provided on the main path of the second path 31 downstream of the second gas supply valve 312 for filtering impurities of hydrogen.

Correspondingly, the third passage 32 has a main passage and two branches, the two branches are respectively communicated with the first filling pipeline 200 and the second filling pipeline 201, the third control valve has two branches and is respectively arranged on the two branches of the third passage 32, the third control valve is an electromagnetic valve, one of the third control valves is a fifth electromagnetic valve 320 and is used for controlling the on-off of the third hydrogen source and the first filling pipeline 200, and the other is a sixth electromagnetic valve 321 and is used for controlling the on-off of the third hydrogen source and the second filling pipeline 201.

A check valve 33 is provided on each branch of the third passage 32 downstream of the third control valve to prevent the reverse flow of hydrogen; a third supply valve 322 is provided on the total path of the third passage 32 for controlling the on-off of the third passage 32 with the third hydrogen source, and a hydrogen filter 34 is provided on the total path of the third passage 32 downstream of the third supply valve 322 for filtering impurities of hydrogen.

The charging system of the hydrogenation machine has the following working modes:

when the first filling pipeline 200 is used for single-line filling, the first air supply valve 302, the second air supply valve 312, the third air supply valve 322 and the filling valve 24 on the first filling pipeline 200 are firstly opened, and then the first stop valve 460 is opened, so that the first filling pipeline 200 is communicated with the first safety valve 450, and the danger of overpressure of the first filling pipeline 200 is prevented; the first electromagnetic valve 300 and the first gas path valve 110 are opened, hydrogen is filled into the hydrogen storage bottle group through the first hydrogen source, the gas source pressure of the first gas path valve 110 entering the flow regulating valve 10 is regulated according to the pressure difference between the first hydrogen source and the hydrogen storage bottle group and the hydrogen temperature in the hydrogen storage bottle group, and the opening size of the valve port of the flow regulating valve 10 is regulated so as to control the hydrogen filling speed. When the pressure difference between the first hydrogen source and the hydrogen storage bottle group is less than 2Mpa, the first electromagnetic valve 300 is closed, the third electromagnetic valve 310 is opened until the pressure difference between the second hydrogen source and the hydrogen storage bottle group is less than 2Mpa, the third electromagnetic valve 310 is closed, and the fifth electromagnetic valve 320 is opened until the hydrogen in the hydrogen storage bottle group reaches the preset pressure. After filling, the hydrogen return port 44 on the hydrogenation gun is opened to release the hydrogen in the filling tube.

When the second filling pipeline 201 is used for single-line filling, the first air supply valve 302, the second air supply valve 312, the third air supply valve 322 and the filling valve 24 on the second filling pipeline 201 are firstly opened, and then the second stop valve 461 is opened, so that the second filling pipeline 201 is communicated with the second safety valve 451, and the danger of the overpressure of the second filling pipeline 201 is prevented; the second electromagnetic valve 301 and the second air path valve 111 are opened, hydrogen is filled into the hydrogen storage bottle group through the first hydrogen source, the gas source pressure of the second air path valve 111 entering the flow regulating valve 10 is regulated according to the pressure difference between the first hydrogen source and the hydrogen storage bottle group and the hydrogen temperature in the hydrogen storage bottle group, and the opening size of the valve port of the flow regulating valve 10 is regulated so as to control the hydrogen filling speed. When the pressure difference between the first hydrogen source and the hydrogen storage bottle group is less than 2Mpa, the second electromagnetic valve 301 is closed, the fourth electromagnetic valve 311 is opened until the pressure difference between the second hydrogen source and the hydrogen storage bottle group is less than 2Mpa, the fourth electromagnetic valve 311 is closed, and the sixth electromagnetic valve 321 is opened until the hydrogen in the hydrogen storage bottle group reaches the preset pressure. After filling, the hydrogen return port 44 on the hydrogenation gun is opened to release the hydrogen in the filling tube.

In double-line filling, first, the first air supply valve 302, the second air supply valve 312, the third air supply valve 322, the filling valve 24 on the first filling pipeline 200 and the filling valve 24 on the second filling pipeline 201 are opened, then the first stop valve 460 and the second stop valve 461 are opened, the first filling pipeline 200 is communicated with the first safety valve 450, the second filling pipeline 201 is communicated with the second safety valve 451, then the first electromagnetic valve 300, the second electromagnetic valve 301, the first air path valve 110 and the second air path valve 111 are opened, hydrogen of the first hydrogen source is filled through the first filling pipeline 200 and the second filling pipeline 201 at the same time, when the pressure difference between the first hydrogen source and the hydrogen storage bottle group is smaller than 2Mpa, the first electromagnetic valve 300 and the second electromagnetic valve 301 are closed, the third electromagnetic valve 310 and the fourth electromagnetic valve 311 are opened until the pressure difference between the second hydrogen source and the hydrogen storage bottle group is smaller than 2Mpa, the third electromagnetic valve 310 and the fourth electromagnetic valve 311 are closed, and the fifth electromagnetic valve 320 and the sixth electromagnetic valve 321 are opened until the hydrogen pressure in the hydrogen storage bottle group reaches a preset pressure. After filling is completed, the first and second vent valves 420 and 421 are opened to release hydrogen in the two filling tubes.

Specifically, the first control valve, the second control valve and the third control valve may also be pneumatic ball valves.

Specifically, the first air supply valve 302, the second air supply valve 312, the third air supply valve 322, and the filling valve 24 are manual ball valves.

Specifically, the initial pressures of the first hydrogen source, the second hydrogen source and the third hydrogen source are the same, and it is understood that, according to the hydrogen supply pressure level of the hydrogenation station, specific pressure values of the first hydrogen source, the second hydrogen source and the third hydrogen source are conventional choices in the art, and in this embodiment, the pressures of the first hydrogen source, the second hydrogen source and the third hydrogen source are 45MPa.

The hydrogenation machine provided by the utility model is described below, and the hydrogenation machine described below and the hydrogenation machine filling system described above can be correspondingly referred to each other.

A hydrogenation machine comprises the hydrogenation machine filling system. The hydrogen leakage detector 50 and the temperature sensor 60 are also included, wherein the hydrogen leakage detector is used for detecting the leakage of hydrogen, and can send out an alarm when the hydrogen leaks; the temperature sensor 60 is used to collect the operating temperature inside the hydrogenation machine.

The novel innovation point of the utility model is that: in actual operation, the instrument air source is connected with the instrument air source and connected with the flow regulating valve 10 through the driving air path 11 and the air path regulating valve, so that a driving air source can be provided for the flow regulating valve 10, and the air path regulating valve can regulate the pressure of the driving air source entering the flow regulating valve 10, thereby regulating the size of the valve opening of the flow regulating valve 10 and further regulating the filling speed of hydrogen in a filling pipeline. In actual operation, through collecting the pressure difference, the filling temperature etc. parameter of actual hydrogen source and fuel cell car hydrogen storage bottle group, adjust the valve port aperture of gas circuit governing valve outlet pressure control flow control valve 10 for thereby flow control valve 10 can be according to the pressure difference, the filling temperature etc. parameter of actual hydrogen source and hydrogen storage bottle group adjust the hydrogen flow in the filling pipeline, compare in electric flow control valve and manual flow control valve commonly used, both guaranteed flow control's convenience, satisfy hydrogen fire prevention, explosion-proof demand simultaneously, in addition, can provide stable air source for flow control valve 10 through driving gas circuit 11, guaranteed flow control valve 10 frequent, long-time operating stability.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A hydro-generator charging system, comprising:

a flow rate regulating valve (10) which is a pneumatic valve and is arranged on the filling pipeline;

a driving air path (11) for connecting the instrument air source with the flow regulating valve (10) to provide a driving air source for the flow regulating valve (10); the driving air channel (11) is provided with an air channel regulating valve for regulating the pressure of a driving air source entering the flow regulating valve (10).

2. The hydro machine charging system of claim 1, wherein the fill line comprises:

the hydrogenation gun is connected to the air outlet end of the filling pipeline (20), and the flow regulating valve (10) is arranged in the filling pipeline (20);

a first passage (30) for connecting a first hydrogen source to the inlet end of the filling pipe (20), the first passage (30) being provided with a first control valve;

a second passage (31) for connecting a second source of hydrogen to the inlet end of the filling line (20), the second passage (31) being provided with a second control valve;

and a third passage (32) for connecting a third hydrogen source to the inlet end of the filling pipe (20), wherein a third control valve is arranged on the third passage (32).

3. The filling system of a hydrogenation machine according to claim 2, characterized in that a pressure transmitter (25) and/or a temperature transmitter (26) is arranged on the filling pipe for detecting the filling pressure and/or the filling temperature of the outlet end of the filling pipe.

4. A filling system for a hydrogenation machine according to claim 3, characterized in that said first, second and third control valves are adapted to disconnect said first, second and third passages (30, 31, 32) depending on feedback of said filling pressure and/or said filling temperature.

5. The hydro machine charging system of any one of claims 1-4 further comprising a vent line (40) in communication with the fill line for venting hydrogen gas within the fill line.

6. The filling system of a hydrogenation machine according to claim 5, wherein the venting line (40) is communicated with the filling line through a venting passage (41), and a venting valve (42) is arranged on the venting passage (41) for controlling the opening and closing of the venting passage (41).

7. The filling system of a hydrogenation machine according to claim 5, characterized in that said venting line (40) communicates with said filling line through a bleeding branch (43), said bleeding branch (43) being connected with a safety valve (45).

8. The charging system of a hydrogenation machine according to claim 5, wherein a hydrogen return port (44) is provided on the hydrogenation gun, and the hydrogen return port (44) is communicated with the vent line (40).

9. A hydrotreater comprising a hydrotreater charging system according to any one of claims 1-8.

10. The hydrogenation machine according to claim 9, further comprising a hydrogen leak detector (50) and/or a temperature detector.