CN112728402A - Nitrogen displacement and drainage device for hydrogen storage tank - Google Patents
Nitrogen displacement and drainage device for hydrogen storage tank Download PDFInfo
- Publication number
- CN112728402A CN112728402A CN202110005856.8A CN202110005856A CN112728402A CN 112728402 A CN112728402 A CN 112728402A CN 202110005856 A CN202110005856 A CN 202110005856A CN 112728402 A CN112728402 A CN 112728402A
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- Prior art keywords
- hydrogen
- storage tank
- hydrogen storage
- distribution pipe
- pipe
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000001257 hydrogen Substances 0.000 title claims abstract description 104
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 104
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 title description 13
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 32
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 19
- 238000009792 diffusion process Methods 0.000 claims description 39
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 37
- 230000008676 import Effects 0.000 claims description 8
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 2
- 238000006467 substitution reaction Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 101100293261 Mus musculus Naa15 gene Proteins 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/01—Propulsion of the fluid
- F17C2227/0192—Propulsion of the fluid by using a working fluid
-
- 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
- Y02E60/32—Hydrogen storage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/45—Hydrogen technologies in production processes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a nitrogen replacement and drainage device for a hydrogen storage tank, which comprises a hydrogen storage tank body, wherein a hydrogen inlet and outlet connecting pipe is arranged at the upper part of an end socket at the end part of the hydrogen storage tank body, a nitrogen replacement connecting pipe is arranged at the lower part of the end socket, a hydrogen distribution pipe is arranged at the highest position in the hydrogen storage tank body, a plurality of energy dissipation holes are arranged at the top of the hydrogen distribution pipe, one end of the hydrogen distribution pipe is communicated with the hydrogen inlet and outlet connecting pipe, the other end of the hydrogen distribution pipe is closed, a nitrogen distribution pipe is arranged at the lowest position in the hydrogen storage tank body, a plurality of energy dissipation holes are arranged at the. The invention ensures that the replacement medium and the replaced medium are replaced in a laminar flow mode by utilizing the density difference of the medium, avoids the transition turbulent flow mixing of a local area at the nitrogen replacement connecting pipe, and eliminates the defects of insufficient replacement and long replacement time caused by larger length-diameter ratio of equipment; simultaneously, the requirement of draining the accumulated water in the device by using the siphon principle during hydraulic test of the device is met.
Description
Technical Field
The invention relates to the field of pressure containers, in particular to a nitrogen replacement and drainage device for a hydrogen storage tank.
Background
The hydrogen storage tank is used as a high-pressure container, after equipment is manufactured, a pressure resistance test is required according to standards and pattern requirements, and a hydraulic test is adopted in consideration of economy and safety. During the hydraulic test, the gas in the hydrogen storage tank needs to be exhausted, test water is thoroughly discharged after the hydraulic test, the interior of the equipment is kept dry and is anticorrosive, after the equipment is installed, the air in the equipment and the pipeline is replaced by nitrogen, and the nitrogen needs to be replaced by the hydrogen before the hydrogen storage tank is put into operation.
The design pressure of the hydrogen storage tank is high, a multi-layer wrapping or belt winding structure is usually adopted, all connecting pipes are concentrated on the sealing heads at two ends of the equipment, the connecting pipes cannot be arranged at the lowest part and the highest part of the equipment, and exhaust during hydraulic test of the equipment and drainage after the hydraulic test are difficult. The length-diameter ratio of the hydrogen storage tank is larger, and during medium replacement, dead zones are easily formed in the space far away from the medium inlet, medium exchange is slow, and even the hydrogen storage tank is in a static state; at the inlet, the medium is in a turbulent state and consumes a lot of energy. Therefore, the medium replacement time of the current hydrogen storage tank is long, the replacement effect is poor, and potential safety hazards are caused to equipment operation.
Disclosure of Invention
The invention aims to: aiming at the problems that when the medium of the existing hydrogen storage tank is replaced, a dead zone is easily formed in a space far away from a medium inlet, the medium exchange is slow, even the medium is in a static state, the total replacement time of equipment is long, and the replacement effect is poor; the medium is in a turbulent flow state at the inlet, and the consumed energy is large; the nitrogen displacement and drainage device for the hydrogen storage tank is provided for solving the problem of potential safety hazard caused by equipment operation.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a hydrogen is nitrogen gas replacement and drainage device for storage tank, includes the hydrogen storage tank body, the upper portion of this end of body head of hydrogen storage tank is equipped with hydrogen and imports and exports the takeover, and the lower part is equipped with nitrogen gas replacement takeover, this internal highest point of hydrogen storage tank is equipped with hydrogen distribution pipe along its length direction, hydrogen distribution pipe top is equipped with a plurality of energy dissipation holes along its length direction interval, the one end intercommunication of hydrogen distribution pipe hydrogen imports and exports the takeover, the other end is sealed, this internal lowest point of hydrogen storage tank is equipped with nitrogen gas distribution pipe along its length direction, nitrogen gas distribution bottom is equipped with a plurality ofly along its length direction interval the energy dissipation hole, the one end intercommunication of nitrogen gas distribution pipe nitrogen gas replacement takeover.
By adopting the nitrogen displacement and drainage device for the hydrogen storage tank, the hydrogen distribution pipe is arranged to be combined with the flow guide of the fluid flowing in and out of the hydrogen inlet/outlet connecting pipe through the energy dissipation hole and the flow guide of the fluid flowing in and out of the nitrogen displacement connecting pipe through the nitrogen distribution pipe combined with the energy dissipation hole, the density difference of the medium is utilized to ensure that the displacement medium and the displaced medium are displaced in a laminar flow manner, turbulent flow mixing at the nitrogen displacement connecting pipe is avoided, the defects of insufficient displacement and long displacement time caused by large length-diameter ratio of equipment are eliminated, the efficiency of nitrogen displacement is improved, the displacement time is shortened, the loss of the displaced medium is reduced, and the safety risk caused by incomplete displacement is avoided; meanwhile, when the device is used for carrying out a hydraulic test of equipment, accumulated water in the equipment is drained by using a siphon principle, and the hydrogen distribution pipe at the top can collect and guide air out, so that the problems of air discharge and drainage of the hydraulic test of the equipment are solved, and the smooth implementation of the hydraulic test is ensured; the device has simple structure, convenient use and good effect.
Preferably, the hydrogen distribution pipe and the nitrogen distribution pipe are respectively fixed on the inner wall of the hydrogen storage tank body through a plurality of fixing devices.
Preferably, the energy dissipation holes on the hydrogen distribution pipe are uniformly distributed.
Preferably, the energy dissipation holes on the nitrogen distribution pipe are uniformly distributed.
Preferably, this nitrogen gas replacement and drainage device for hydrogen storage tank still includes the diffusion tube, go up the diffusion tube connect in the corresponding department of hydrogen import and export takeover hydrogen storage tank body inner wall, hydrogen distribution pipe intercommunication go up the diffusion tube, the internal diameter of going up the diffusion tube is greater than the internal diameter of hydrogen import and export takeover.
Further preferably, this hydrogen storage tank is with nitrogen gas replacement and drainage device still includes the diffusion tube down, the diffusion tube is connected down in the nitrogen gas replacement takeover corresponds the department hydrogen storage tank body inner wall, nitrogen gas distribution pipe intercommunication the diffusion tube down, the internal diameter of diffusion tube down is greater than the internal diameter of nitrogen gas replacement takeover.
By adopting the structure, through setting up go up the diffuser tube with the diffuser tube down, it is right hydrogen is imported and exported the takeover or hydrogen distribution pipe gets into the fluid of going up the diffuser tube carries out the diffusion step-down, right nitrogen gas replacement takeover or nitrogen gas distribution pipe gets into the fluid of diffuser tube carries out the diffusion step-down, plays the cushioning effect.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the nitrogen replacement and drainage device for the hydrogen storage tank, the hydrogen distribution pipe is arranged to be combined with the flow guide of the fluid flowing in and out of the hydrogen inlet/outlet connecting pipe through the energy dissipation hole and the flow guide of the fluid flowing in and out of the nitrogen replacement connecting pipe through the nitrogen distribution pipe combined with the energy dissipation hole, the replacement of a replacement medium and a replaced medium is guaranteed in a laminar flow mode by utilizing the density difference of the medium, turbulent flow mixing at the nitrogen replacement connecting pipe is avoided, the defects of insufficient replacement and long replacement time caused by large length-diameter ratio of equipment are overcome, the efficiency of nitrogen replacement is improved, the replacement time is shortened, the loss of the replacement medium is reduced, and the safety risk caused by incomplete replacement is avoided; meanwhile, when the device is used for carrying out a hydraulic test of equipment, accumulated water in the equipment is drained by using a siphon principle, and the hydrogen distribution pipe at the top can collect and guide air out, so that the problems of air discharge and drainage of the hydraulic test of the equipment are solved, and the smooth implementation of the hydraulic test is ensured; the device has simple structure, convenient use and good effect;
2. according to the nitrogen gas replacement and drainage device for the hydrogen storage tank, the upper diffusion pipe and the lower diffusion pipe are arranged, so that the fluid entering the upper diffusion pipe from the hydrogen inlet/outlet connecting pipe or the hydrogen distribution pipe is subjected to diffusion pressure reduction, the fluid entering the lower diffusion pipe from the nitrogen gas replacement connecting pipe or the nitrogen distribution pipe is subjected to diffusion pressure reduction, and a buffering effect is achieved.
Drawings
FIG. 1 is a schematic view showing the structure of a nitrogen displacement and water discharge apparatus for a hydrogen storage tank according to the present invention;
FIG. 2 is a schematic cross-sectional view of a hydrogen distribution pipe;
FIG. 3 is a schematic cross-sectional view of a nitrogen distribution pipe.
The labels in the figure are: 1-a hydrogen storage tank body, 2-a fixing device, 3-a hydrogen distribution pipe, 4-an upper diffusion pipe, 5-a hydrogen inlet and outlet connection pipe, 6-a nitrogen replacement connection pipe, 7-a lower diffusion pipe, 8-a nitrogen distribution pipe and 9-an energy dissipation hole.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
Examples
As shown in fig. 1 to 3, the nitrogen gas replacement and drainage device for a hydrogen gas storage tank according to the present invention includes a hydrogen gas storage tank body 1, wherein a hydrogen gas inlet/outlet connection pipe 5 is disposed at an upper portion of an end socket of the end portion of the hydrogen gas storage tank body 1, and a nitrogen gas replacement connection pipe 6 is disposed at a lower portion thereof.
The welding of hydrogen import and export 5 corresponding departments of takeover 1 inner wall of hydrogen storage tank body has last diffusion tube 4, go up diffusion tube 4 intercommunication hydrogen import and export takeover 5, the internal diameter of going up diffusion tube 4 is greater than hydrogen import and export the internal diameter of takeover 5, the highest point is equipped with hydrogen distribution pipe 3 along its length direction in the hydrogen storage tank body 1, hydrogen distribution pipe 3 is fixed through a plurality of fixing device 2 1 inner wall of hydrogen storage tank body, the even interval in its length direction of 3 tops of hydrogen distribution pipe is equipped with a plurality of energy dissipation holes 9, the one end intercommunication of hydrogen distribution pipe 3 go up diffusion tube 4, the other end seals.
Nitrogen gas replacement takeover 6 correspond department the welding of 1 inner wall of hydrogen storage tank body has diffusion tube 7 down, diffusion tube 7 intercommunication down nitrogen gas replacement takeover 6, the internal diameter of diffusion tube 7 is greater than down the internal diameter of nitrogen gas replacement takeover 6, the interior minimum of hydrogen storage tank body 1 is equipped with nitrogen gas distribution pipe 8 along its length direction, nitrogen gas distribution pipe 8 is fixed through a plurality of fixing device 2 1 inner wall of hydrogen storage tank body, the even interval of its length direction of nitrogen gas distribution pipe 8 bottom is equipped with a plurality ofly energy dissipation hole 9, the one end intercommunication of nitrogen gas distribution pipe 8 diffusion tube 7, the other end seal down.
According to the nitrogen replacement and drainage device for the hydrogen storage tank, the hydrogen distribution pipe 3 is arranged to combine with the energy dissipation holes 9 to conduct flow in and out of the hydrogen inlet and outlet connecting pipe 5, the nitrogen distribution pipe 8 is arranged to combine with the energy dissipation holes 9 to conduct flow in and out of the nitrogen replacement connecting pipe 6, the upper diffusion pipe 4 and the lower diffusion pipe 7 are arranged to conduct diffusion depressurization on the fluid entering the upper diffusion pipe 4 from the hydrogen inlet and outlet connecting pipe 5 or the hydrogen distribution pipe 3, the fluid entering the lower diffusion pipe 7 from the nitrogen replacement connecting pipe 6 or the nitrogen distribution pipe 8 plays a role in buffering, and the density difference of media is used for ensuring that replacement media and replaced media are replaced in a laminar flow mode. The transition turbulent mixing at the nitrogen replacement connecting pipe 6 is avoided, and the defects of insufficient replacement and long replacement time caused by large length-diameter ratio of equipment are eliminated. The efficiency of nitrogen gas replacement is improved, shorten the replacement time, reduced the loss of replacement medium, avoided the not thorough safety risk that arouses of replacement. Simultaneously when utilizing the device to carry out equipment hydraulic test, utilize the siphon principle, the inside ponding of drain, the top hydrogen distributing pipe 3 can collect the air and derive. The problems of air discharge and drainage of the hydraulic test of the equipment are solved, and the smooth implementation of the hydraulic test is ensured; the device has simple structure, convenient use and good effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a nitrogen gas replacement and drainage device for hydrogen storage tank, includes hydrogen storage tank body (1), the upper portion of hydrogen storage tank body (1) tip head is equipped with hydrogen and imports and exports takeover (5), and the lower part is equipped with nitrogen gas replacement takeover (6), a serial communication port, the highest point is equipped with hydrogen distribution pipe (3) along its length direction in hydrogen storage tank body (1), hydrogen distribution pipe (3) top is equipped with a plurality of energy dissipation holes (9) along its length direction interval, the one end intercommunication of hydrogen distribution pipe (3) hydrogen is imported and exported takeover (5), the other end and is sealed, lowest point is equipped with nitrogen gas distribution pipe (8) along its length direction in hydrogen storage tank body (1), nitrogen gas distribution pipe (8) bottom is equipped with a plurality of along its length direction interval energy dissipation hole (9), the one end intercommunication of nitrogen gas distribution pipe (8) nitrogen gas replacement takeover (6), The other end is closed.
2. The nitrogen gas replacement and drainage device for the hydrogen storage tank according to claim 1, wherein the hydrogen distribution pipe (3) and the nitrogen distribution pipe (8) are respectively fixed on the inner wall of the hydrogen storage tank body (1) through a plurality of fixing devices (2).
3. The nitrogen substitution and drainage device for hydrogen storage tank according to claim 1, wherein the energy dissipation holes (9) on the hydrogen distribution pipe (3) are uniformly distributed.
4. The nitrogen substitution and drainage device for a hydrogen storage tank according to claim 1, wherein the energy dissipation holes (9) on the nitrogen distribution pipe (8) are uniformly distributed.
5. The nitrogen gas replacement and drainage device for the hydrogen storage tank according to any one of claims 1 to 4, further comprising an upper diffusion pipe (4), wherein the upper diffusion pipe (4) is connected to the inner wall of the hydrogen storage tank body (1) at the position corresponding to the hydrogen inlet/outlet adapter (5), the hydrogen distribution pipe (3) is communicated with the upper diffusion pipe (4), and the inner diameter of the upper diffusion pipe (4) is larger than that of the hydrogen inlet/outlet adapter (5).
6. The nitrogen gas replacement and drainage device for the hydrogen storage tank according to claim 5, further comprising a lower diffusion pipe (7), wherein the lower diffusion pipe (7) is connected to the inner wall of the hydrogen storage tank body (1) at the position corresponding to the nitrogen gas replacement connection pipe (6), the nitrogen gas distribution pipe (8) is communicated with the lower diffusion pipe (7), and the inner diameter of the lower diffusion pipe (7) is larger than that of the nitrogen gas replacement connection pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110005856.8A CN112728402A (en) | 2021-01-04 | 2021-01-04 | Nitrogen displacement and drainage device for hydrogen storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110005856.8A CN112728402A (en) | 2021-01-04 | 2021-01-04 | Nitrogen displacement and drainage device for hydrogen storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112728402A true CN112728402A (en) | 2021-04-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110005856.8A Pending CN112728402A (en) | 2021-01-04 | 2021-01-04 | Nitrogen displacement and drainage device for hydrogen storage tank |
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| Country | Link |
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| CN (1) | CN112728402A (en) |
Cited By (2)
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| WO2023079683A1 (en) * | 2021-11-05 | 2023-05-11 | 川崎重工業株式会社 | Liquefied hydrogen storage method and liquefied hydrogen storage system |
| CN117073084A (en) * | 2023-08-21 | 2023-11-17 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN117073084A (en) * | 2023-08-21 | 2023-11-17 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
| CN117073084B (en) * | 2023-08-21 | 2024-04-23 | 珠海格莱克科技有限公司 | Humidity control apparatus and method for stabilizing water temperature of humidity control apparatus |
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Application publication date: 20210430 |
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