CN217540380U - On-line secondary hydrogen generator - Google Patents
On-line secondary hydrogen generator Download PDFInfo
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- CN217540380U CN217540380U CN202123303242.2U CN202123303242U CN217540380U CN 217540380 U CN217540380 U CN 217540380U CN 202123303242 U CN202123303242 U CN 202123303242U CN 217540380 U CN217540380 U CN 217540380U
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- liquid nitrogen
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- nitrogen cooling
- catalytic conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model discloses an online secondary hydrogen generator, include: the hydrogen gas catalytic conversion device comprises a frame, a liquid nitrogen cooling bottle is arranged on the frame, a pre-cooling coil and a catalytic conversion coil are arranged inside the liquid nitrogen cooling bottle, a catalyst is filled in the catalytic conversion coil, an air inlet pipeline is arranged on the frame, the inlet end of the air inlet pipeline is used for being communicated with a hydrogen source, an adjusting valve is arranged on the air inlet pipeline, the air inlet pipeline extends into the liquid nitrogen cooling bottle and is communicated with the pre-cooling coil, the pre-cooling coil is communicated with the catalytic conversion coil through an inlet filter, the catalytic conversion coil is communicated with an air outlet pipeline through an outlet filter, and the air outlet pipeline extends out of the liquid nitrogen cooling bottle and is provided with a pressure regulating valve; the liquid nitrogen cooling bottle is provided with a heating mechanism for heating the catalytic conversion coil to activate the catalyst, and the liquid nitrogen cooling bottle is also provided with a precooling mechanism. The utility model has the advantages of simple structure and convenient operation.
Description
Technical Field
The utility model relates to an orthohydric conversion equipment technical field, concretely relates to online parahydric generator.
Background
Typical hydrogen is a mixture of two hydrogen molecules, orthohydrogen and parahydrogen, the equilibrium percentage between orthohydrogen and parahydrogen being dependent only on temperature. At room temperature or higher, it is generally called normal hydrogen, and normal hydrogen contains 75% of ortho-hydrogen and 25% of para-hydrogen. With the rise of the hydrogen energy industry, the analysis demand of parahydrogen is more and more, particularly the analysis of hydrogen with the parahydrogen content reaching 50%. At present, no equipment capable of continuously preparing hydrogen with the para-hydrogen content of 50 percent on line exists in the market.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an on-line secondary hydrogen generator which is convenient to operate and can continuously prepare hydrogen with the secondary hydrogen content reaching 50 percent on line.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an online secondary hydrogen generator comprising: the hydrogen catalytic conversion device comprises a rack, wherein a liquid nitrogen cooling bottle is arranged on the rack, a precooling coil and a catalytic conversion coil are arranged inside the liquid nitrogen cooling bottle, a catalyst is filled in the catalytic conversion coil, an air inlet pipeline is arranged on the rack, the inlet end of the air inlet pipeline is used for being communicated with a hydrogen source, an adjusting valve for adjusting the flow of hydrogen is arranged on the air inlet pipeline, the outlet end of the air inlet pipeline extends into the liquid nitrogen cooling bottle and is communicated with the inlet of the precooling coil, the outlet of the precooling coil is communicated with the inlet of the catalytic conversion coil through an inlet filter, the outlet of the catalytic conversion coil is communicated with the inlet end of an air outlet pipeline through an outlet filter, and the outlet end of the air outlet pipeline extends out of the liquid nitrogen cooling bottle and is provided with an adjusting valve; the liquid nitrogen cooling bottle is provided with a heating mechanism for heating the catalytic conversion coil to activate the catalyst, and the liquid nitrogen cooling bottle is also provided with a precooling mechanism for cooling the precooling coil and the catalytic conversion coil.
Further, the foregoing online secondary hydrogen generator, wherein: the structure of the heating mechanism is a plurality of heaters inserted into the liquid nitrogen cooling bottles.
Further, the aforementioned online secondary hydrogen generator, wherein: the structure of the precooling mechanism comprises: the liquid nitrogen storage tank is used for storing liquid nitrogen, the side wall of the liquid nitrogen cooling bottle is provided with a liquid inlet valve and a liquid outlet with a liquid discharge valve, the liquid inlet of the liquid nitrogen cooling bottle is communicated with the liquid nitrogen storage tank, and the liquid nitrogen cooling bottle is provided with an ultralow temperature sensor for detecting the internal temperature of the liquid nitrogen cooling bottle in real time.
Further, the aforementioned online secondary hydrogen generator, wherein: and a liquid level meter for detecting the liquid level of the liquid nitrogen in the liquid nitrogen cooling bottle in real time is arranged on the liquid nitrogen cooling bottle.
Further, the aforementioned online secondary hydrogen generator, wherein: and a metering valve is arranged on the air inlet pipeline behind the regulating valve.
Further, the aforementioned online secondary hydrogen generator, wherein: the frame is provided with a vacuum pump, the pumping hole of the vacuum pump is communicated with the inlet end of a vacuum pumping pipeline, the outlet end of the vacuum pumping pipeline is communicated with an air inlet pipeline behind the metering valve, and the vacuum pumping pipeline is provided with a control valve for opening and closing the vacuum pumping pipeline.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: simple structure, convenient operation, high use stability and safety, can continuously prepare the hydrogen with the parahydrogen content of 50 percent on line, and has high production efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an online secondary hydrogen generator according to the present invention.
Fig. 2 is a schematic structural view of country 1 without a liquid nitrogen cooling bottle, a heater and an ultra-low temperature sensor.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the online secondary hydrogen generator includes: the device comprises a frame 1, wherein a liquid nitrogen cooling bottle 2 is arranged on the frame 1, a precooling coil 3 and a catalytic conversion coil 4 are arranged inside the liquid nitrogen cooling bottle 2, and a catalyst is filled in the catalytic conversion coil 4 and is ferroferric oxide; an air inlet pipeline 5 is arranged on the rack 1, the inlet end of the air inlet pipeline 5 is used for being communicated with a hydrogen source, an adjusting valve 6 for adjusting the hydrogen flow is arranged on the air inlet pipeline 5, a metering valve 7 is arranged on the air inlet pipeline 5 behind the adjusting valve 6, the outlet end of the air inlet pipeline 5 extends into the liquid nitrogen cooling bottle 2 and is communicated with the inlet of the pre-cooling coil 3, the outlet of the pre-cooling coil 3 is communicated with the inlet of the catalytic conversion coil 4 through an inlet filter 8, the outlet of the catalytic conversion coil 4 is communicated with the inlet end of an air outlet pipeline 10 through an outlet filter 9, and the outlet end of the liquid nitrogen outlet pipeline 10 extends out of the liquid nitrogen cooling bottle 2 and is provided with a pressure regulating valve 11; the liquid nitrogen cooling bottle 2 is provided with a heating mechanism for heating the catalytic conversion coil 4 to activate the catalyst, in the embodiment, the heating mechanism is structured by a plurality of heaters 12 inserted into the liquid nitrogen cooling bottle 2, and in the embodiment, the number of the heaters 12 is two; a pre-cooling mechanism for cooling the pre-cooling coil 3 and the catalytic conversion coil 4 is also arranged on the liquid nitrogen cooling bottle 2; in this embodiment, the structure of the pre-cooling mechanism includes: the liquid nitrogen storage tank is used for storing liquid nitrogen, a liquid inlet 20 provided with a liquid inlet valve 13 and a liquid outlet 21 provided with a liquid outlet valve 14 are arranged on the side wall of the liquid nitrogen cooling bottle 2, the liquid inlet of the liquid nitrogen cooling bottle 2 is communicated with the liquid nitrogen storage tank, and an ultralow temperature sensor 15 used for detecting the internal temperature of the liquid nitrogen cooling bottle 2 in real time is arranged on the liquid nitrogen cooling bottle 2; in the embodiment, a liquid level meter 16 for detecting the liquid level of liquid nitrogen in the liquid nitrogen cooling bottle 2 in real time is arranged on the liquid nitrogen cooling bottle 2; in the embodiment, a vacuum pump 17 is arranged on the frame 1, an air suction opening of the vacuum pump 17 is communicated with an inlet end of a vacuum pumping pipeline 18, an outlet end of the vacuum pumping pipeline 18 is communicated with an air inlet pipeline 5 behind a metering valve 7, and a control valve 19 for opening and closing the vacuum pumping pipeline 18 is arranged on the vacuum pumping pipeline 18;
during operation, under the condition that the liquid nitrogen cooling bottle 2 is empty, the interiors of the pre-cooling coil pipe 3 and the catalytic conversion coil pipe 4 are firstly vacuumized, and the vacuumizing operation is as follows: firstly, closing an adjusting valve on an air inlet pipe 5, then opening a control valve 19 on a vacuumizing pipeline 18, then starting a vacuum pump 17, vacuumizing the interiors of a pre-cooling coil pipe 3 and a catalytic conversion coil pipe 4 through the vacuumizing pipeline 18 and the air inlet pipeline 5 by the vacuum pump 17, and closing the control valve 19 and simultaneously stopping the action of the vacuum pump when the vacuum degrees in the interiors of the pre-cooling coil pipe 3 and the catalytic conversion coil pipe 4 reach 10^ -2 Pa;
after the interior of the pre-cooling coil 3 and the interior of the catalytic conversion coil 4 are vacuumized, activating a catalyst in the catalytic conversion coil 4, wherein the specific operation is as follows: opening the regulating valve 6 and simultaneously starting the heaters 12, wherein the heaters 12 heat the pre-cooling coil 3 and the catalytic conversion coil 4, in the heating process, the normal hydrogen in the hydrogen source is continuously introduced into the pre-cooling coil 3 and the catalytic conversion coil 4 through the air inlet pipeline 5, after the pre-cooling coil 3 and the catalytic conversion coil 4 are heated to 140-180 ℃ by the heaters 12, the temperature is kept for 8-20 hours, and in the heat preservation process, the normal hydrogen in the hydrogen source is continuously introduced into the pre-cooling coil 3 and the catalytic conversion coil 4 through the air inlet pipeline 5, so that the activation of the catalyst in the catalytic conversion coil 4 is completed;
after the activation of the catalyst in the catalytic conversion coil 4 is completed, the pre-cooling coil 3 and the catalytic conversion coil 4 are cooled to-196 ℃, and the specific operation is as follows: firstly, closing each heater 12, then opening a liquid inlet valve 13 and closing a liquid outlet valve 14, so that liquid nitrogen in a liquid nitrogen storage tank enters a liquid nitrogen cooling bottle 2 through the liquid inlet valve 13 and a liquid inlet 20, and cooling a pre-cooling coil 3 and a catalytic conversion coil 4 immersed in the liquid nitrogen through the liquid nitrogen until the pre-cooling coil 3 and the catalytic conversion coil 4 are cooled to-196 ℃;
then preparing hydrogen with 50 percent of para-hydrogen content by the following specific operations: the outlet end of the gas outlet pipeline is connected with a storage tank, then the regulating valve 6 is opened, the regulating valve controls the flow of hydrogen to be 0-400 ml/min, the stability of the hydrogen flow rate is not more than 1.5% (10 min), normal hydrogen in the hydrogen source enters the pre-cooling coil 3 through the gas inlet pipeline 5, the normal hydrogen can be fully cooled in the process of passing through the pre-cooling coil 3, the fully cooled normal hydrogen enters the catalytic conversion coil 4, the normal hydrogen can be catalyzed by a catalyst to form hydrogen with the content of 50% para-hydrogen in the process of passing through the catalytic conversion coil 4, and the hydrogen with the content of 50% para-hydrogen is discharged into the storage tank for collection and storage after being regulated by the pressure regulating valve 11.
The utility model has the advantages that: simple structure, convenient operation, high use stability and safety, can continuously prepare the hydrogen with the parahydrogen content of 50 percent on line, and has high production efficiency.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (6)
1. An online secondary hydrogen generator comprising: the frame, its characterized in that: the frame is provided with a liquid nitrogen cooling bottle, a pre-cooling coil and a catalytic conversion coil are arranged inside the liquid nitrogen cooling bottle, a catalyst is filled in the catalytic conversion coil, the frame is provided with an air inlet pipeline, the inlet end of the air inlet pipeline is communicated with a hydrogen source, the air inlet pipeline is provided with an adjusting valve for adjusting the flow of hydrogen, the outlet end of the air inlet pipeline extends into the liquid nitrogen cooling bottle and is communicated with the inlet of the pre-cooling coil, the outlet of the pre-cooling coil is communicated with the inlet of the catalytic conversion coil through an inlet filter, the outlet of the catalytic conversion coil is communicated with the inlet end of an air outlet pipeline through an outlet filter, and the outlet end of the air outlet pipeline extends out of the liquid nitrogen cooling bottle and is provided with a pressure regulating valve; the liquid nitrogen cooling bottle is provided with a heating mechanism for heating the catalytic conversion coil to activate the catalyst, and the liquid nitrogen cooling bottle is also provided with a precooling mechanism for cooling the precooling coil and the catalytic conversion coil.
2. The online secondary hydrogen generator of claim 1, wherein: the structure of the heating mechanism is a plurality of heaters inserted into the liquid nitrogen cooling bottles.
3. The online secondary hydrogen generator of claim 1, wherein: the structure of precooling mechanism includes: the liquid nitrogen storage tank is used for storing liquid nitrogen, the side wall of the liquid nitrogen cooling bottle is provided with a liquid inlet valve and a liquid outlet with a liquid discharge valve, the liquid inlet of the liquid nitrogen cooling bottle is communicated with the liquid nitrogen storage tank, and the liquid nitrogen cooling bottle is provided with an ultralow temperature sensor for detecting the internal temperature of the liquid nitrogen cooling bottle in real time.
4. The online secondary hydrogen generator of claim 3, wherein: and a liquid level meter for detecting the liquid level of the liquid nitrogen in the liquid nitrogen cooling bottle in real time is arranged on the liquid nitrogen cooling bottle.
5. The online secondary hydrogen generator of claim 1 or 2 or 3 or 4, wherein: and a metering valve is arranged on the air inlet pipeline behind the regulating valve.
6. The online secondary hydrogen generator of claim 5, wherein: the frame is provided with a vacuum pump, the pumping hole of the vacuum pump is communicated with the inlet end of a vacuum pumping pipeline, the outlet end of the vacuum pumping pipeline is communicated with an air inlet pipeline behind the metering valve, and the vacuum pumping pipeline is provided with a control valve for opening and closing the vacuum pumping pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123303242.2U CN217540380U (en) | 2021-12-27 | 2021-12-27 | On-line secondary hydrogen generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123303242.2U CN217540380U (en) | 2021-12-27 | 2021-12-27 | On-line secondary hydrogen generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217540380U true CN217540380U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123303242.2U Active CN217540380U (en) | 2021-12-27 | 2021-12-27 | On-line secondary hydrogen generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217540380U (en) |
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2021
- 2021-12-27 CN CN202123303242.2U patent/CN217540380U/en active Active
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