CN215931421U - High-pressure hydrogen sampling device - Google Patents
High-pressure hydrogen sampling device Download PDFInfo
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- CN215931421U CN215931421U CN202122215015.8U CN202122215015U CN215931421U CN 215931421 U CN215931421 U CN 215931421U CN 202122215015 U CN202122215015 U CN 202122215015U CN 215931421 U CN215931421 U CN 215931421U
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Abstract
The utility model discloses a high-pressure hydrogen sampling device, which comprises an air inlet pipe and a control valve, wherein the control valve is arranged in the air inlet pipe and used for controlling the on-off of the air inlet pipe, the output end of the air inlet pipe is provided with an installation shell, the air inlet pipe is connected with the installation shell through an elastic connecting piece, a pressure gauge for detecting the gas pressure is arranged inside the installation shell, a diffusing mechanism is arranged inside the installation shell and connected with a pressure regulator to control the gas pressure, the right side of the installation shell is provided with an air outlet, and the end part of the air outlet is connected with a high-pressure metal hose and used for filling sampling gas into a sampling bottle for storage. The high-pressure hydrogen sampling device is safe and reliable by emptying gas in the device and emptying gas in the sampling bottle; the back end valve of the sampling bottle is not required to be independently operated to be emptied (the back end valve of the sampling bottle must be repeatedly emptied for a plurality of times by a common device), and meanwhile, the device is provided with an air inlet and outlet pressure meter, and the outlet pressure is adjustable.
Description
Technical Field
The utility model relates to the technical field of hydrogen sampling, in particular to a high-pressure hydrogen sampling device.
Background
At present, the development of the domestic and foreign hydrogen energy industry is rapid, a hydrogen station is taken as an important ring of an industrial chain, the gas quality of hydrogen is seriously and closely related to the operation efficiency and the service life of a hydrogen compressor and a hydrogen fuel cell, the purity of the hydrogen is strictly controlled in the processes of production, purification, compression of the hydrogen station, filling of a hydrogenation machine and the like, the sampling operation danger is high due to the high working pressure (45MPa), at present, no safe and reliable shaped product is sold at home, the pressure level of a device for sampling the hydrogen at home and abroad is highest 25MPa, the device is only used for sampling of hydrogen manufacturers and hydrogen transportation vehicles, no qualified product is sampled from the back of the compressor, the back of a hydrogen storage tank and a gas filling machine, and the safe, simple and reliable high-pressure hydrogen sampling device with the level of 45MPa is not found through the research on the domestic sampling technology.
In order to solve the above problems, innovative design based on the original hydrogen sampling device is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-pressure hydrogen sampling device to solve the problems that the pressure level of the existing hydrogen sampling device in the market is 25Mpa at most, the existing hydrogen sampling device is only used for sampling of hydrogen manufacturers and hydrogen transportation vehicles, and qualified products sampled from the back of a compressor, the back of a hydrogen storage tank and a gas dispenser are not available.
In order to achieve the purpose, the utility model provides the following technical scheme: high-pressure hydrogen sampling device, including intake pipe and control valve, the control valve is installed and is controlled the break-make of intake pipe in the intake pipe, the output of intake pipe is provided with the installation shell, and the intake pipe is connected with the installation shell through elastic connection spare to the inside of installation shell is provided with the manometer to gas pressure detection, the inside of installation shell is provided with diffuses the mechanism, and diffuses the mechanism and be connected with the voltage regulator, controls atmospheric pressure, the right side of installation shell is provided with the gas outlet, and the end connection of gas outlet has high-pressure metal collapsible tube for with sample gas fills and preserve in the sampling bottle.
Further optimize this technical scheme, elastic connecting piece is the high-pressure spiral pipe, and the high-pressure spiral pipe comprises thin footpath stainless steel seamless pipe, increases the withstand voltage level of pipeline, improves its safety guarantee.
Further optimize this technical scheme, the manometer confession is provided with two sets ofly, and two sets of manometers are connected with intake pipe and gas outlet respectively, detect getting into and exporting atmospheric pressure.
Further optimize this technical scheme, diffuse the mechanism and constitute by diffuse valve an and diffuse valve b, and diffuse and connect through the voltage regulator between valve a and the valve b, regulate and control the atmospheric pressure in sampling bottle and the device, can empty the atmospheric pressure in the device.
Further optimize this technical scheme, the left end of gas outlet is fixed with the connector, and the connector is connected with the installation shell through the butt joint to constitute threaded connection between connector and the butt joint, the surface at the installation shell is fixed to the butt joint, and the inside of connector is provided with the annular packing pad that provides sealed effect simultaneously, and convenient follow-up dismantlement is changed high-pressure metal collapsible tube.
Compared with the prior art, the utility model has the beneficial effects that: the high-pressure hydrogen sampling device is safe and reliable by emptying gas in the device and emptying gas in the sampling bottle; the rear end valve of the sampling bottle is not required to be independently operated to be emptied (the rear end valve of the sampling bottle must be repeatedly emptied for multiple times in a common device), meanwhile, the device is provided with an air inlet and outlet pressure meter, the outlet pressure is adjustable, the pressure of an inlet pipeline is high, thin-diameter thick-wall 316L stainless steel is adopted, a spiral coil pipe is manufactured for being easy to bend and stretch, a stainless steel hose with high pressure-resistant grade is adopted for the outlet, and the pressure-resistant capacity of the device is improved.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the working process of the present invention;
FIG. 3 is a schematic view of a main sectional structure of a gas outlet of the present invention;
fig. 4 is a schematic side view of the connector of the present invention.
In the figure: 1. an air inlet pipe; 2. a control valve; 3. a high pressure spiral tube; 4. mounting a shell; 5. a pressure gauge; 6. a relief valve a; 7. a relief valve b; 8. a voltage regulator; 9. an air outlet; 10. a high-pressure metal hose; 11. a connector; 12. a butt joint; 13. and a gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the high-pressure hydrogen sampling device comprises an air inlet pipe 1 and a control valve 2, wherein the control valve 2 is installed in the air inlet pipe 1 to control the on-off of the air inlet pipe 1, an installation shell 4 is arranged at the output end of the air inlet pipe 1, the air inlet pipe 1 is connected with the installation shell 4 through an elastic connecting piece 3, a pressure gauge 5 for detecting the gas pressure is arranged inside the installation shell 4, a diffusing mechanism is arranged inside the installation shell 4 and connected with a pressure regulator 8 to control the air pressure, an air outlet 9 is arranged on the right side of the installation shell 4, and the end part of the air outlet 9 is connected with a high-pressure metal hose 10 for filling and storing the sampling gas into a sampling bottle;
the elastic connecting piece 3 is a high-pressure spiral pipe, the high-pressure spiral pipe is formed by a thin-diameter stainless steel seamless pipe, two groups of pressure gauges 5 are arranged, the two groups of pressure gauges 5 are respectively connected with the air inlet pipe 1 and the air outlet 9 to detect the air pressure entering and outputting, the diffusing mechanism is formed by a diffusing valve a6 and a diffusing valve b7, the diffusing valve a6 is connected with the diffusing valve b7 through a pressure regulator 8, and the air pressure in the sampling bottle and the sampling bottle is regulated and controlled;
the pressure of the 20-45Mpa high-pressure hydrogen is reduced and then enters the sampling bottle according to the fixed value of 0.5Mpa, the pressure is stable after the pressure is reduced, the control is easy, and the problems that the pressure of a manual switch valve is difficult to control and the danger is large are thoroughly solved; the small-diameter stainless steel seamless pipe phi 5mm and 316L can replace a common metal hose, the pressure-resistant level is improved, and the safety is better guaranteed; the device can take gas from the tail end of the tank car, the front and the back of a compressor, the front and the back of a hydrogen storage pipe and the front and the back of a hydrogenation machine, and the device is highly integrated and miniaturized;
a connector 11 is fixed at the left end of the air outlet 9, the connector 11 is connected with the mounting shell 4 through a butt joint 12, the connector 11 and the butt joint 12 form threaded connection, the butt joint 12 is fixed on the surface of the mounting shell 4, and an annular sealing gasket 13 for providing sealing effect is arranged inside the connector 11;
when the high-pressure metal hose 10 needs to be replaced subsequently, the connector 11 can be taken down from the butt joint 12, operation is convenient, and meanwhile, the sealing gasket 13 can be used for filling a gap after installation, so that the sealing performance of the joint is guaranteed.
The working principle is as follows: when the high-pressure hydrogen sampling device is used, (1) a bleeding valve a6 and a bleeding valve b7 are closed, a control valve 2 at the air inlet pipe 1 is opened, high-pressure hydrogen is accessed from an air inlet interface (a hydrogen discharging port at the tail part of a tank car, a rear interface of a storage tank or a front interface of a hydrogenation machine), and enters a sampling bottle (a valve at the inlet end of the sampling bottle is opened, and a valve at the other end of the sampling bottle is always in a closed state) through a high-pressure metal hose 10 after the pressure is reduced from 20-45Mpa to 5Mpa (the pressure is manually adjustable and calculated according to 5Mpa temporarily) to a high-pressure regulator 8 through a high-pressure spiral coil with the diameter of 5 mm;
(2) closing the control valve 2 at the air inlet pipe 1, opening a bleeding valve a6 and a bleeding valve b7 to ensure that the pressure in the sampling device and the pressure in the sampling bottle are both vented to be equal to the atmospheric pressure, and repeating the step (1) for 5 times;
(3) after 6 times of filling and 5 times of emptying, the hydrogen concentration in the sampling bottle reaches 99.999999 percent of purity by calculating according to the pressure 5Mpa in the sampling bottle temporarily; if higher purity is needed, the charging and discharging times are increased;
(4) after the operation is finished, the inlet valve of the sampling bottle is closed, the control valve 2 at the air inlet pipe 1 is closed, the bleeding valve a6 and the bleeding valve b7 are opened to release hydrogen in the pipeline, and the sampling device is dismantled and arranged.
(5) In the operation process, the operation is strictly carried out according to the operation regulations in the station, protection is well done, fire-fighting equipment is equipped, operation permission is obtained, and safe operation is ensured.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (5)
1. The high-pressure hydrogen sampling device comprises an air inlet pipe (1) and a control valve (2), wherein the control valve (2) is arranged in the air inlet pipe (1) and used for controlling the on-off of the air inlet pipe (1);
the method is characterized in that: the output of intake pipe (1) is provided with installation shell (4), and intake pipe (1) is connected through elastic connection spare (3) and installation shell (4) to the inside of installation shell (4) is provided with manometer (5) to gas pressure detection, the inside of installation shell (4) is provided with diffuses the mechanism, and diffuses mechanism and voltage regulator (8) and be connected, controls atmospheric pressure, the right side of installation shell (4) is provided with gas outlet (9), and the end connection of gas outlet (9) has high-pressure metal collapsible tube (10) for with sample gas fill sample bottle in save.
2. The high pressure hydrogen sampling device according to claim 1, wherein: the elastic connecting piece (3) is a high-pressure spiral pipe, and the high-pressure spiral pipe is composed of a thin-diameter stainless steel seamless pipe.
3. The high-pressure hydrogen sampling device according to claim 1 or 2, wherein: manometer (5) supply is provided with two sets ofly, and two sets of manometer (5) are connected with intake pipe (1) and gas outlet (9) respectively, detect getting into and output atmospheric pressure.
4. The high pressure hydrogen sampling device according to claim 1, wherein: the diffusing mechanism is composed of a diffusing valve a (6) and a diffusing valve b (7), the diffusing valve a (6) and the diffusing valve b (7) are connected through a pressure regulator (8), and the air pressure in the sampling bottle and the sampling device is regulated and controlled.
5. The high pressure hydrogen sampling device according to claim 1, wherein: the left end of gas outlet (9) is fixed with connector (11), and connector (11) are connected with installation shell (4) through butt joint (12) to constitute threaded connection between connector (11) and butt joint (12), fix the surface at installation shell (4) to butt joint (12), the inside of connector (11) is provided with the annular packing pad (13) that provides sealed effect simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122215015.8U CN215931421U (en) | 2021-09-13 | 2021-09-13 | High-pressure hydrogen sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122215015.8U CN215931421U (en) | 2021-09-13 | 2021-09-13 | High-pressure hydrogen sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215931421U true CN215931421U (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122215015.8U Active CN215931421U (en) | 2021-09-13 | 2021-09-13 | High-pressure hydrogen sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215931421U (en) |
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2021
- 2021-09-13 CN CN202122215015.8U patent/CN215931421U/en active Active
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