CN114777018A - Liquid hydrogen hydrogenation station leaks diffusion safety protection system - Google Patents
Liquid hydrogen hydrogenation station leaks diffusion safety protection system Download PDFInfo
- Publication number
- CN114777018A CN114777018A CN202210356865.6A CN202210356865A CN114777018A CN 114777018 A CN114777018 A CN 114777018A CN 202210356865 A CN202210356865 A CN 202210356865A CN 114777018 A CN114777018 A CN 114777018A
- Authority
- CN
- China
- Prior art keywords
- cofferdam
- liquid hydrogen
- wind direction
- safety protection
- ground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000001257 hydrogen Substances 0.000 title claims abstract description 58
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 58
- 239000007788 liquid Substances 0.000 title claims abstract description 46
- 238000009792 diffusion process Methods 0.000 title claims abstract description 23
- 238000005984 hydrogenation reaction Methods 0.000 title claims description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 title 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 8
- 230000001012 protector Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims 2
- 238000005422 blasting Methods 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 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
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/036—Avoiding leaks
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/03—Dealing with losses
- F17C2260/035—Dealing with losses of fluid
- F17C2260/037—Handling leaked fluid
-
- 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
- F17C2265/00—Effects achieved by gas storage or gas handling
- F17C2265/05—Regasification
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a leakage diffusion safety protection system for a liquid hydrogen refueling station, which comprises a wind direction monitoring system, an internal network system, a liftable cofferdam system, a ground heating system and a protected device, wherein the liftable cofferdam system, the ground heating system and the protected device are connected to the wind direction monitoring system through the internal network system, the liftable cofferdam system is positioned on the periphery of the ground heating system, and the protected device is positioned in the center of the ground heating system. The invention can limit the diffusion of leaked liquid hydrogen when the liquid hydrogen storage device is broken, and quickly evaporate the leaked liquid hydrogen into hydrogen gas, thereby reducing low-temperature damage; simultaneously according to the lift of real-time wind direction adjustment surrounding in the cofferdam of liquid hydrogen storage facilities, avoid the vortex to the suppression of hydrogen dissipation, realize dissipating whole hydrogen to the atmosphere fast, reduce the hidden danger of blasting.
Description
Technical Field
The invention relates to the technical field of liquid hydrogen safe utilization, in particular to a leakage diffusion safety protection system of a liquid hydrogen refueling station.
Background
Liquid hydrogen is used as a renewable clean energy source with high energy density and safe and harmless combustion products, has been applied to the field of space launch and civil fields, and storage and transportation technology of the liquid hydrogen is mature day by day.
Liquid hydrogen is at a temperature below 20K and needs to be stored in special containers and utilized in different situations. However, due to the extremely low temperature and flammable and explosive nature of liquid hydrogen, once a liquid hydrogen storage container is ruptured and leaked, a great safety hazard is created to surrounding equipment and personnel.
At present, protective measures designed for the liquid hydrogen storage container are mainly used for building a cofferdam around the storage container, when the wind direction of the environment is kept stable, the vortex formed in the cofferdam in the wind direction can prevent hydrogen from dissipating to the environment, the time that the hydrogen station breaks away from the explosion risk is prolonged, and meanwhile, along with the continuous leakage of liquid hydrogen, the ground temperature around the storage container is reduced, so that the evaporation rate of the liquid hydrogen is reduced. Therefore, the cofferdam lifting and ground temperature can be adjusted according to the leakage condition and the real-time environment wind speed, and the important significance is achieved for evaporating and dissipating the liquid hydrogen in the environment as soon as possible.
Disclosure of Invention
In order to fill the defects of the safety protection measures of the existing liquid hydrogen storage container, the invention provides a leakage diffusion safety protection system of a liquid hydrogen hydrogenation station.
The invention is realized by adopting the following technical scheme:
the utility model provides a liquid hydrogen hydrogenation station leaks diffusion safety protection system, includes wind direction monitoring system, internal network system to and be connected to wind direction monitoring system's liftable cofferdam system, ground heating system and by protector through internal network system, wherein, liftable cofferdam system is located the circumference of ground heating system, is located the center of ground heating system by protector.
The invention further improves that the wind direction monitoring system is positioned above the protected device.
The invention has the further improvement that the response time of the wind direction monitoring system to the wind direction conversion is less than 1s, and the real-time wind direction information is collected and converted into an electric signal to be input into an internal network system.
The invention is further improved in that the internal network system controls the downwind cofferdam wall in the lifting cofferdam system to rise according to the electric signal transmitted by the wind direction monitoring system.
The invention has the further improvement that the liftable cofferdam system consists of a plurality of independent cofferdam walls, no gap exists between the adjacent cofferdam walls, and the included angle between the cofferdam and the ground can be adjusted at will after the cofferdam is lifted.
A further improvement of the invention is that the cofferdam wall has eight sheets.
In a further development of the invention, the ground heating system is arranged in advance under the ground surrounding the protected device and has a temperature sensor for monitoring the ground temperature reduction caused by the leakage of the liquid hydrogen and activating the ground heating system to heat the ground.
In a further development of the invention, the protected device is a liquid hydrogen storage container.
The invention has at least the following beneficial technical effects:
the invention discloses a safety protection system for leakage and diffusion of a liquid hydrogen refueling station, which can limit the diffusion of leaked liquid hydrogen when a liquid hydrogen storage device is broken, quickly evaporate the leaked liquid hydrogen into hydrogen and reduce low-temperature damage; simultaneously, the cofferdam surrounding the liquid hydrogen storage equipment is adjusted to lift according to the real-time wind direction, so that the inhibition of eddy current to hydrogen dissipation is avoided, the full-field hydrogen is quickly dissipated to the atmosphere, and the burning and explosion hidden danger is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of structure 3.
Fig. 3 is a schematic operation diagram of embodiment 1.
Description of reference numerals:
1-a wind direction monitoring system, 2-an internal network system, 3-a liftable cofferdam system, 4-a ground heating system and 5-a protected device;
301-first weir wall, 302-second weir wall, 303-third weir wall, 304-fourth weir wall, 305-fifth weir wall, 306-sixth weir wall, 307-seventh weir wall, 308-eighth weir wall.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "east", "south", "west", "north", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1, the leakage diffusion safety protection system for the liquid hydrogen refueling station provided by the invention comprises a wind direction monitoring system 1, an internal network system 2 connected with the wind speed and wind direction monitoring system 1, a liftable cofferdam system 3, a ground heating system 4 and a protected device 5.
As shown in fig. 2, the liftable cofferdam system 3 is composed of 8 independent cofferdam walls without gaps between adjacent cofferdam walls.
Example 1
As shown in fig. 3, the protected device 5 is broken to form a gap, and the liquid hydrogen leaks from the gap and diffuses to the surrounding ground and the atmosphere, thereby lowering the temperature of the ground contacting the liquid hydrogen. The temperature sensor of the ground heating system 4 obtains a temperature signal to heat the ground, so as to quickly evaporate the liquid hydrogen on the ground, and meanwhile, the eastern fourth cofferdam wall 304 and the eastern eighth cofferdam wall 308 rise and incline to the outside of the cofferdam by 45 degrees, so that the liquid hydrogen is prevented from further diffusing on the ground, and the hydrogen is guided to diffuse to a distance and a high place.
The direction of the environmental wind is from west to east, the internal network system 2 receives signals of the wind direction monitoring system 1, the liftable cofferdam system 3 is adjusted, except for the raised fourth cofferdam wall 304 and eighth cofferdam wall 308, the west first cofferdam wall 301 and the west fifth cofferdam wall 305, the rest unrerisen cofferdam walls are raised and inclined to the outside of the cofferdam by 45 degrees, further diffusion of liquid hydrogen on the ground is prevented, and the hydrogen is guided to be diffused to a far place and a high place.
Example 2
The contents are the same as in example 1 except for the following.
The environmental wind direction is from east to west, and internal network system 2 receives the signal of wind direction monitoring system 1, adjusts liftable cofferdam system 3, except that the fourth cofferdam wall 304 that has risen, eighth cofferdam wall 308, all the other cofferdam walls that have not risen all rise, prevent the further diffusion of liquid hydrogen on ground to guide hydrogen to far away and eminence diffusion.
Example 3
The contents are the same as in example 1 except for the following.
The direction of the environmental wind is from south to north, the internal network system 2 receives signals of the wind direction monitoring system 1, the liftable cofferdam system 3 is adjusted, except for the raised fourth cofferdam wall 304, the raised eighth cofferdam wall 308, the south sixth cofferdam wall 306 and the seventh cofferdam wall 307, the rest raised cofferdam walls are raised, the liquid hydrogen is prevented from being further diffused on the ground, and the hydrogen is guided to be diffused to far away and high places.
Example 4
The contents are the same as in example 1 except for the following.
The environmental wind direction is from north to south, and internal network system 2 receives wind direction monitoring system 1's signal, adjusts liftable cofferdam system 3, except that the fourth cofferdam wall 304, the eighth cofferdam wall 308 that have risen and second cofferdam wall 302, the third cofferdam wall 303 of north limit, all the other not risen the cofferdam wall all rise, prevent the further diffusion of liquid hydrogen on ground to guide hydrogen to far away and eminence diffusion.
Although the invention has been described in detail hereinabove with respect to specific embodiments thereof, it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.
Claims (8)
1. The utility model provides a liquid hydrogen hydrogenation station leaks diffusion safety protection system, its characterized in that, including wind direction monitoring system (1), internal network system (2) to and be connected to liftable cofferdam system (3) of wind direction monitoring system (1), ground heating system (4) and by protector (5) through internal network system (2), wherein, liftable cofferdam system (3) are located the circumference of ground heating system (4), are located the center of ground heating system (4) by protector (5).
2. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 1, wherein the wind direction monitoring system (1) is located above a protected device (5).
3. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 1, wherein the response time of the wind direction monitoring system (1) to wind direction conversion is less than 1s, and the system collects real-time wind direction information, converts the information into an electric signal and inputs the electric signal into the internal network system (2).
4. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 3, wherein the internal network system (2) controls a downwind cofferdam wall in the lifting cofferdam system (3) to rise according to an electric signal transmitted by the wind direction monitoring system (1).
5. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 1, wherein the liftable cofferdam system (3) is composed of a plurality of independent cofferdam walls, no gap exists between adjacent cofferdam walls, and the included angle between the cofferdam and the ground can be adjusted freely after the cofferdam is lifted.
6. The hydrographic station leak diffusion safety protection system of claim 5, wherein the weir wall has eight pieces.
7. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 1, wherein the ground warming system (4) is preset below the ground around the protected device (5) and is provided with a temperature sensor for monitoring the ground temperature reduction caused by the leakage of the liquid hydrogen and activating the ground warming system (4) to warm the ground.
8. The liquid hydrogen refueling station leakage diffusion safety protection system according to claim 1, wherein the protected device (5) is a liquid hydrogen storage container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356865.6A CN114777018A (en) | 2022-04-06 | 2022-04-06 | Liquid hydrogen hydrogenation station leaks diffusion safety protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210356865.6A CN114777018A (en) | 2022-04-06 | 2022-04-06 | Liquid hydrogen hydrogenation station leaks diffusion safety protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114777018A true CN114777018A (en) | 2022-07-22 |
Family
ID=82427722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210356865.6A Pending CN114777018A (en) | 2022-04-06 | 2022-04-06 | Liquid hydrogen hydrogenation station leaks diffusion safety protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114777018A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101490A (en) * | 1993-10-06 | 1995-04-18 | Mitsubishi Heavy Ind Ltd | Gas diffusion accelerating device for gas storage equipment |
| US20050120723A1 (en) * | 2004-02-11 | 2005-06-09 | Mustang Engineering, L.P. | Methods and Apparatus For Processing, Transporting And/Or Storing Cryogenic Fluids |
| JP2005308106A (en) * | 2004-04-22 | 2005-11-04 | Tokyo Electric Power Co Inc:The | Dike for fuel tank having gas diffusion preventive wall, and gas diffusion preventive method in dike for fuel tank using gas diffusion preventive wall |
| JP2006275228A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Chemical Co Ltd | Gas diffusion preventive barrier, effectiveness evaluating method of diffusion preventive function, evaluating system and evaluating program |
| CN112879804A (en) * | 2021-03-16 | 2021-06-01 | 浙江浙能技术研究院有限公司 | Liquid hydrogen leakage protection device based on air curtain and water curtain |
-
2022
- 2022-04-06 CN CN202210356865.6A patent/CN114777018A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07101490A (en) * | 1993-10-06 | 1995-04-18 | Mitsubishi Heavy Ind Ltd | Gas diffusion accelerating device for gas storage equipment |
| US20050120723A1 (en) * | 2004-02-11 | 2005-06-09 | Mustang Engineering, L.P. | Methods and Apparatus For Processing, Transporting And/Or Storing Cryogenic Fluids |
| JP2005308106A (en) * | 2004-04-22 | 2005-11-04 | Tokyo Electric Power Co Inc:The | Dike for fuel tank having gas diffusion preventive wall, and gas diffusion preventive method in dike for fuel tank using gas diffusion preventive wall |
| JP2006275228A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Chemical Co Ltd | Gas diffusion preventive barrier, effectiveness evaluating method of diffusion preventive function, evaluating system and evaluating program |
| CN112879804A (en) * | 2021-03-16 | 2021-06-01 | 浙江浙能技术研究院有限公司 | Liquid hydrogen leakage protection device based on air curtain and water curtain |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | A study on a numerical simulation of the leakage and diffusion of hydrogen in a fuel cell ship | |
| CN201436692U (en) | Cylindrical lithium secondary cell cap component and cell using the cap component | |
| Pan et al. | Safety study of a wind–solar hybrid renewable hydrogen refuelling station in China | |
| Pu et al. | Plume dispersion behaviour and hazard identification for large quantities of liquid hydrogen leakage | |
| CN201242969Y (en) | Outdoor high-voltage SF6 can-type circuit breaker with automatic heat accompany device | |
| CN107320872A (en) | A kind of passive type electric automobile power battery bag fire-proof protection device and method | |
| CN114777018A (en) | Liquid hydrogen hydrogenation station leaks diffusion safety protection system | |
| Gitushi et al. | Hydrogen gas dispersion studies for hydrogen fuel cell vessels II: Fuel cell room releases and the influence of ventilation | |
| CN103879522B (en) | A kind of natural fuels filling station landing stage waterborne | |
| CN208815574U (en) | Intelligent well cover | |
| CN110599744A (en) | Gas leakage early warning method and device based on oil power station and storage medium | |
| CN107453001A (en) | A kind of lithium battery fire-retarding device | |
| CN212991229U (en) | Explosion-proof battery | |
| CN102437300A (en) | Novel dynamic power supply | |
| CN211373686U (en) | Comprehensive monitoring device for power distribution network cable well | |
| Prevatt et al. | Tornado damage and impacts on nuclear facilities in the United States | |
| CN203871169U (en) | Anti-explosion oil immersion type current transformer | |
| CN212617594U (en) | Vacuum powder heat insulation low-temperature liquid storage tank | |
| JPH07169481A (en) | Fuel cell power plant | |
| CN212991238U (en) | Explosion-proof battery | |
| CN216717627U (en) | Temperature sensing alarm system for preventing heat conduction oil leakage | |
| CN214013102U (en) | Explosion-proof battery | |
| CN214164745U (en) | Mobile vehicle-mounted hydrogen storage system of full-immersion fuel cell | |
| Yin et al. | Study on Risk Reduction Performance of Offshore Platform Firewall Subjected to Fire and Explosion Hazards | |
| ES2684420B2 (en) | Channeling for superconducting cable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |