CN114893711A - Multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device - Google Patents
Multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device Download PDFInfo
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- CN114893711A CN114893711A CN202210585133.4A CN202210585133A CN114893711A CN 114893711 A CN114893711 A CN 114893711A CN 202210585133 A CN202210585133 A CN 202210585133A CN 114893711 A CN114893711 A CN 114893711A
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- Prior art keywords
- jar
- wall
- liquid
- tank
- liquid hydrogen
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- 239000007788 liquid Substances 0.000 title claims abstract description 128
- 239000001257 hydrogen Substances 0.000 title claims abstract description 55
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 55
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000001816 cooling Methods 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 37
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- 238000004321 preservation Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 150000002431 hydrogen Chemical class 0.000 claims description 6
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000567 combustion gas Substances 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 9
- 238000003780 insertion Methods 0.000 description 8
- 230000037431 insertion Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 8
- 239000010410 layer Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/10—Vessels not under pressure with provision for thermal insulation by liquid-circulating or vapour-circulating jackets
-
- 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
- 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
- F17C13/04—Arrangement or mounting of valves
-
- 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
- F17C3/00—Vessels not under pressure
-
- 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
-
- 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0304—Thermal insulations by solid means
-
- 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
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/03—Thermal insulations
- F17C2203/0375—Thermal insulations by gas
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to a storage device, in particular to a multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device. It includes storage jar and the cooling mechanism of setting in the storage jar, the storage jar includes outer jar, well jar and liquid storage pot, well jar sets up inside outer jar, form the heat preservation chamber between outer jar inner wall and the well jar outer wall, the liquid storage pot sets up inside well jar, during this many inlayer large capacity liquid hydrogen safety does not have the storage device of revealing, gas discharge to the cooling intracavity, the refrigeration effect of cooperation refrigeration board makes gaseous reliquefaction and cover at the liquid storage pot outer wall, and heat conduction pole and refrigeration board contact simultaneously conduct the liquid hydrogen department in the liquid storage pot with low temperature through baffle, connecting rod and spoiler, have solved the outer damage of storage jar and have leaded to the thermal-insulated function failure of storage jar, lead to the gaseous body to discharge, and the problem that present jar body can not utilize the combustion gas.
Description
Technical Field
The invention relates to a storage device, in particular to a multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device.
Background
The liquid hydrogen storage is to cool the hydrogen gas to a certain refrigeration mode until the boiling temperature reaches 20K, and store the liquefied hydrogen gas in a tank. The volume of the liquefied hydrogen is reduced by more than 800 times compared with that of the liquefied hydrogen in a gaseous state, and the liquefied hydrogen is convenient to store and transport.
However, storing liquid hydrogen has problems such as boil-off gas. The daily evaporation rate of the existing liquid hydrogen storage tank is about 0.68-1.7%, and the evaporation of the liquid hydrogen not only causes the waste of hydrogen energy, but also causes the increase of the gas pressure in the tank. Therefore, at present, a refrigeration device is arranged in the tank body, and the refrigeration device is arranged in a separate cavity (in order to prevent the liquid hydrogen from damaging the refrigeration device) and cannot be in contact with the liquid hydrogen.
In the transportation, the storage jar has not been avoided colliding with and colliding with, this outer damage that just makes the storage jar easily, lead to the thermal-insulated function failure of storage jar, because refrigeration plant can't with liquid hydrogen direct contact, the temperature transfer is slower, thermal-insulated function failure back, the temperature variation is too fast, refrigeration plant can't maintain the low temperature of liquid hydrogen, outside temperature continuously enters into the jar body department of inlayer, the change of temperature forces liquid hydrogen gasification, make jar internal pressure too big, lead to gas to be discharged, and the present jar body can not utilize the combustion gas, lead to gas to be wasted.
Disclosure of Invention
The invention aims to provide a multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device to solve the problems in the background technology.
In order to realize the aim, the multi-inner-layer high-capacity liquid hydrogen safe leakage-free storage device comprises a storage tank and a cooling mechanism arranged in the storage tank, the storage tank comprises an outer tank, a middle tank and a liquid storage tank, the middle tank is arranged in the outer tank, a heat preservation cavity is formed between the inner wall of the outer tank and the outer wall of the middle tank, the liquid storage tank is arranged in the middle tank, a cooling cavity is formed between the inner wall of the middle tank and the outer wall of the liquid storage tank, the inner wall of the top of the middle tank is provided with a plurality of refrigeration plates, the top of the liquid storage tank is communicated with a plurality of connecting pipes, the connecting pipe is used for conveying liquid hydrogen, the connecting pipe penetrates through the middle tank and the outer tank, the top of the liquid storage tank is provided with an exhaust port, the gas vent top is provided with the baffle, the fixed a plurality of heat conduction poles that are provided with of baffle outer lane, heat conduction pole and refrigeration board contact when shifting up, cooling mechanism includes at least:
the inner cooling part comprises a connecting rod, the connecting rod is longitudinally arranged in the liquid storage tank, a plurality of spoilers are fixedly arranged on the connecting rod, the spoilers are fixedly connected through connecting columns, and the heat conducting rod, the baffle, the connecting rod and the spoilers can conduct heat;
the outer flow guide part comprises a baffle ring, the baffle ring is arranged in the cooling cavity, an inner ring of the baffle ring is fixedly arranged above the outer wall of the liquid storage tank, an outer ring of the baffle ring is attached to an inner ring of the middle tank, a liquid outlet is formed in the top of the baffle ring in a penetrating mode, and the liquid outlet is close to the inner ring of the baffle ring;
and when the air pressure in the liquid storage tank is greater than the elastic force in the exhaust valve, the exhaust valve drives the baffle to move upwards.
As a further improvement of the technical scheme, the exhaust valve comprises a sleeve, the sleeve is fixedly arranged at the top of the baffle, a straight rod is arranged in the sleeve in a sliding mode, the top end of the straight rod is fixedly connected with the inner wall of the top end of the middle tank, and a reset spring is fixedly arranged between the inner wall of the top of the middle tank and the top end of the baffle.
As a further improvement of the technical scheme, the top of the baffle ring is provided with a diversion trench which is downwards inclined towards the liquid discharge opening.
As a further improvement of the technical scheme, the bottom of the baffle ring is fixedly provided with a limiting pipe, the limiting pipe is positioned at the periphery of the liquid outlet, and a limiting cavity is formed between the limiting pipe and the liquid storage tank.
As a further improvement of the technical scheme, the flow dividing cavity is formed in the middle tank, the air inlet is formed in the inner wall of the middle tank, the air inlet is communicated with the flow dividing cavity, a plurality of exhaust holes are formed in the outer wall of the middle tank, the exhaust holes are communicated with the flow dividing cavity, a sealing cover is arranged in the heat preservation cavity, the sealing cover is fixedly arranged on the outer wall of the middle tank, a regulating valve is arranged in the flow dividing cavity, and the regulating valve guides the gas in the cooling cavity into the flow dividing cavity after the outer tank is damaged.
As the further improvement of this technical scheme, the governing valve includes the valve, the valve sets up in the reposition of redundant personnel intracavity, the reposition of redundant personnel chamber is located the lateral wall of air inlet, the fixed telescopic link that is provided with of lateral wall that the air inlet was kept away from to the valve, the telescopic link runs through well jar outer wall, the fixed inner wall that sets up at outer jar of one end of telescopic link, the outer lane cover of telescopic link is equipped with compression spring, compression spring's one end and valve lateral wall are connected, the other end of telescopic link and the interior wall connection of outer jar, the valve is located the fixed protruding pole that is provided with of lateral wall of telescopic link department, the fixed deformation board that is provided with of inner wall of outer jar, it is "L" shape structure to warp the board, the one end of deformation board is laminated with the tip of protruding pole, it cancels the promotion to the protruding pole to warp the board through the temperature variation.
As a further improvement of the technical scheme, the outer wall of the cooling cavity longitudinally slides to form a plug board, the bottom end of the plug board is attached to the end portion of the convex rod, the top end of the plug board is bent towards the deformation board, and the bending end of the deformation board is attached to the bottom of the bending end of the plug board.
As a further improvement of the technical scheme, the heat preservation cavity is of a vacuum structure, and the inner wall of the outer tank is fixedly provided with a heat preservation plate.
As a further improvement of the technical scheme, the deformation plate is made of memory metal and comprises copper-based shape memory alloy, iron-based shape memory alloy and nickel-titanium alloy.
As a further improvement of the technical scheme, a through hole is formed in the bottom of the liquid storage tank, a piston cylinder is fixedly arranged on the inner wall of the bottom of the liquid storage tank and communicated with the through hole, a piston rod is slidably arranged in the piston cylinder, and the top end of the piston rod is fixedly connected with the bottom of the spoiler.
Compared with the prior art, the invention has the beneficial effects that:
1. this storage device is revealed to safe nothing of many inlayer large capacity liquid hydrogen, gas discharge is to the cooling intracavity, the refrigeration effect of cooperation refrigeration board makes gas reliquefaction and cover at the liquid storage pot outer wall, heat conduction pole and refrigeration board contact simultaneously, through the baffle, connecting rod and spoiler conduct the liquid hydrogen department in the liquid storage pot with low temperature, the outer damage of having solved storage jar leads to the thermal-insulated function failure of storage jar, the change of temperature forces liquid hydrogen gasification, lead to the gas to be discharged, the present jar body can not utilize the combustion gas, lead to the gas by extravagant problem.
2. In the multi-inner-layer high-capacity liquid hydrogen safe non-leakage storage device, low-temperature high-pressure gas in the cooling cavity enters the shunting cavity through the gas inlet and then is discharged between the sealing cover and the outer wall of the middle tank through the exhaust hole, the sealing cover is forced to expand outwards by the high-pressure gas, the sealing cover expands to the inner wall of the outer tank, and a protective layer is formed on the inner wall of the outer tank so as to seal the damaged position.
3. In this storage device is not revealed to many inlayer large capacity liquid hydrogen safety, gaseous entering cooling intracavity, the frictional force between piston rod and the piston cylinder is overcome to cooling intracavity atmospheric pressure grow, and the piston rod is promoted to move up, drives spoiler, connecting rod, baffle and heat conduction pole and shifts up to in guaranteeing heat conduction pole and refrigeration board contact.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the overall cross-sectional structure of the present invention;
FIG. 3 is a schematic cross-sectional view of a storage tank of the present invention;
FIG. 4 is a schematic view of the exhaust valve of the present invention;
FIG. 5 is a schematic view of the inner cooling member of the present invention;
FIG. 6 is a schematic view of the construction of the external baffle of the present invention;
FIG. 7 is a cross-sectional view of the limiting tube of the present invention;
FIG. 8 is a schematic cross-sectional view of a cross-sectional configuration of a tundish of the present invention;
FIG. 9 is an enlarged cross-sectional view of the middle tank A of FIG. 8 according to the present invention;
FIG. 10 is a schematic view of a regulator valve according to the present invention;
FIG. 11 is a schematic cross-sectional view of the outer vessel of the present invention;
FIG. 12 is a schematic cross-sectional view of a reservoir of the present invention.
The various reference numbers in the figures mean:
100. storing the tank;
110. an outer tank; 111. a heat preservation cavity;
120. a middle tank; 121. a cooling cavity; 122. a refrigeration plate;
130. a liquid storage tank; 131. a connecting pipe; 132. an exhaust port;
140. a shunting cavity; 141. an air inlet; 142. an exhaust hole; 143. a sealing cover;
150. adjusting a valve; 151. a valve; 152. a telescopic rod; 153. a compression spring; 154. a nose bar; 155. a deformable plate; 156. inserting plates;
160. a thermal insulation board;
170. a through hole; 171. a piston cylinder; 172. a piston rod;
200. a cooling mechanism;
210. an internal cooling member; 211. a connecting rod; 212. a spoiler; 213. connecting columns;
220. an outer flow guide; 221. a baffle ring; 222. a liquid discharge port; 223. a limiting pipe; 224. a limiting cavity; 225. a diversion trench;
230. an exhaust valve; 231. a baffle plate; 232. a sleeve; 233. a straight rod; 234. a return spring; 235. a heat conducting rod.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
A first embodiment, please refer to fig. 1-7, which provides a multi-inner-layer high-capacity liquid hydrogen safe and leak-free storage device, comprising a storage tank 100 and a cooling mechanism 200 disposed in the storage tank 100, wherein the storage tank 100 comprises an outer tank 110, a middle tank 120 and a storage tank 130, the middle tank 120 is disposed in the outer tank 110, a heat preservation cavity 111 is formed between the inner wall of the outer tank 110 and the outer wall of the middle tank 120, the storage tank 130 is disposed in the middle tank 120, a cooling cavity 121 is formed between the inner wall of the middle tank 120 and the outer wall of the storage tank 130, a plurality of refrigeration plates 122 are disposed on the inner wall of the top of the middle tank 120, a plurality of connecting pipes 131 are communicated with the top of the storage tank 130, the connecting pipes 131 are used for conveying liquid hydrogen, specifically, two connecting pipes 131 are communicated with the storage tank 130, one connecting pipe 131 is used for conveying external liquid hydrogen into the storage tank 130, the other connecting pipe 131 is used for conveying liquid hydrogen in the storage tank 130 to the outside, connecting pipe 131 runs through well jar 120 and outer jar 110, connecting pipe 131 and liquid storage pot 130 fixed connection, connecting pipe 131 passes well jar 120 and outer jar 110 simultaneously, make outer jar 110, carry out fixed connection through connecting pipe 131 between well jar 120 and the liquid storage pot 130, gas vent 132 has been seted up at the top of liquid storage pot 130, gas vent 132 top is provided with baffle 231, the fixed a plurality of heat conduction poles 235 that are provided with in baffle 231 outer lane, heat conduction pole 235 contacts with refrigeration board 122 when shifting up, cooling mechanism 200 includes at least:
the internal cooling part 210, the internal cooling part 210 includes a connecting rod 211, the connecting rod 211 is longitudinally arranged in the liquid storage tank 130, the connecting rod 211 is fixedly provided with a plurality of spoilers 212, the spoilers 212 are fixedly connected through a connecting column 213, and the heat conducting rod 235, the baffle 231, the connecting rod 211 and the spoilers 212 can conduct heat;
the external flow guide part 220 comprises a baffle ring 221, the baffle ring 221 is arranged in the cooling cavity 121, the inner ring of the baffle ring 221 is fixedly arranged above the outer wall of the liquid storage tank 130, the outer ring of the baffle ring 221 is attached to the inner ring of the middle tank 120, a liquid discharge port 222 is formed in the top of the baffle ring 221 in a penetrating mode, and the liquid discharge port 222 is close to the inner ring of the baffle ring 221;
when the air pressure in the storage tank 130 is greater than the elastic force in the air outlet valve 230, the air outlet valve 230 drives the baffle 231 to move upwards, the air is discharged into the cooling cavity 121, the air is liquefied again and covers the outer wall of the storage tank 130 by matching with the refrigeration effect of the refrigeration plate 122, meanwhile, the heat conducting rod 235 is in contact with the refrigeration plate 122, and the low temperature is conducted to the liquid hydrogen in the storage tank 130 through the baffle 231, the connecting rod 211 and the spoiler 212.
In addition, on this basis, specifically disclose discharge valve 230, discharge valve 230 includes sleeve 232, and sleeve 232 is fixed to be set up at the top of baffle 231, and the slip is provided with straight-bar 233 in sleeve 232, and the top of straight-bar 233 is connected with the inner wall fixed at the top of well jar 120, and the fixed reset spring 234 that is provided with between the top inner wall of well jar 120 and the top of baffle 231.
When the storage tank 100 and the cooling mechanism 200 of this embodiment are used specifically, after the outer tank 110 is damaged, the external gas enters the thermal insulation cavity 111, the thermal insulation function of the thermal insulation cavity 111 fails, the external gas contacts with the outer wall of the refrigeration plate 122, so that the temperature of the gas in the cooling cavity 121 and the liquid storage tank 130 gradually rises, the liquid hydrogen in the liquid storage tank 130 gasifies, the pressure in the liquid storage tank 130 is too high, the baffle 231 is pushed, the gas pressure in the liquid storage tank 130 overcomes the return spring 234, the sleeve 232 slides upwards, the return spring 234 compresses to drive the baffle 231 to move upwards, the gas in the liquid storage tank 130 is discharged into the cooling cavity 121 through the exhaust port 132, the gas and the refrigeration plate 122 work, the gas is liquefied into liquid hydrogen again due to the direct contact with the refrigeration plate 122 and falls onto the top of the baffle ring 221, and flows down through the liquid discharge port 222, because the liquid discharge port 222 is close to the outer wall 130 of the liquid storage tank, the flowing down liquid flows downwards through the outer wall of the liquid storage tank 130, the liquid can reach the cooling effect to liquid storage pot 130, makes the liquid hydrogen gasification in the liquid storage pot 130 slow, and baffle 231 shifts up simultaneously and drives heat conduction pole 235 and refrigeration board 122 contact, and the low temperature of refrigeration board 122 passes through heat conduction pole 235, baffle 231, connecting rod 211 and spoiler 212 with low temperature conduction to the liquid hydrogen department in the liquid storage pot 130, has further reduced the gasification efficiency of liquid hydrogen.
Further, considering that the top of the baffle ring 221 is a plane, the liquid hydrogen flows slowly on the plane, and the liquid hydrogen is likely to be gasified again due to the long-time flow, for this reason, the top of the baffle ring 221 is provided with a guiding groove 225, the guiding groove 225 is inclined downwards towards the liquid discharge port 222, so that the liquid hydrogen flows to the liquid discharge port 222 through an inclined plane, and the efficiency of the liquid hydrogen entering the liquid discharge port 222 is improved.
Still further, in order to improve the probability of the liquid hydrogen dropping on the outer wall of the liquid storage tank 130, a limiting pipe 223 is fixedly arranged at the bottom of the baffle ring 221, the limiting pipe 223 is located at the periphery of the liquid outlet 222, a limiting cavity 224 is formed between the limiting pipe 223 and the liquid storage tank 130, the liquid hydrogen is limited through the limiting cavity 224, the liquid entering the liquid outlet 222 flows in the limiting cavity 224, the limiting cavity 224 is smaller, the liquid can be limited on the outer wall of the liquid storage tank 130, and therefore the probability of the liquid hydrogen dropping on the outer wall of the liquid storage tank 130 is improved.
A second embodiment, which is implemented on the basis of the first embodiment, in view of that the heat preservation cavity 111 loses heat preservation effect after the outer tank 110 is damaged, and the external air enters the heat preservation cavity 111 all the time after being damaged, so as to increase the temperature of the liquid storage tank 130, for this reason, as shown in fig. 8-11, a diversion cavity 140 is formed inside the middle tank 120, an air inlet 141 is formed on the inner wall of the middle tank 120, the air inlet 141 is communicated with the diversion cavity 140, a plurality of exhaust holes 142 are formed on the outer wall of the middle tank 120, the exhaust holes 142 are communicated with the diversion cavity 140, a sealing cover 143 is arranged inside the heat preservation cavity 111, the sealing cover 143 is fixedly arranged on the outer wall of the middle tank 120, an adjusting valve 150 is arranged inside the diversion cavity 140, the adjusting valve 150 guides the air in the cooling cavity 121 into the diversion cavity 140 after the outer tank 110 is damaged, the adjusting valve 150 is influenced by low temperature to open the air inlet 141, the low temperature high pressure gas in cooling chamber 121 enters into reposition of redundant personnel chamber 140 through air inlet 141 in, then discharge between sealed cowling 143 and the well jar 120 outer wall through exhaust hole 142 again, high pressure gas forces the outside inflation of sealed cowling 143, sealed cowling 143 inflation to outer jar 110 inner wall, and form the protective layer at outer jar 110 inner wall, seal up damaged position, prevent that gas from entering into heat preservation chamber 111 through outer jar 110 damaged position in, low temperature gas in the sealed cowling 143 has also cooled down heat preservation chamber 111 simultaneously, the inside intensification's of liquid storage pot 130 efficiency has further been reduced, the time of salvageing has been increased.
On the basis, the regulating valve 150 is specifically disclosed, the regulating valve 150 comprises a valve 151, the valve 151 is arranged in the flow dividing cavity 140, the flow dividing cavity 140 is positioned on the side wall of the air inlet 141, the side wall of the valve 151 far away from the air inlet 141 is fixedly provided with an expansion link 152, the expansion link 152 is composed of a plurality of round rods in sliding connection, the expansion link 152 penetrates through the outer wall of the middle tank 120, one end of the expansion link 152 is fixedly arranged on the inner wall of the outer tank 110, the outer ring of the expansion link 152 is sleeved with a compression spring 153, one end of the compression spring 153 is connected with the side wall of the valve 151, the other end of the expansion link 152 is connected with the inner wall of the outer tank 110, the side wall of the valve 151 at the expansion link 152 is fixedly provided with a convex rod 154, the inner wall of the outer tank 110 is fixedly provided with a deformation plate 155, the deformation plate 155 is in an L-shaped structure, one end of the deformation plate 155 is attached to the end of the convex rod 154, the deformation plate 155 cancels the pushing of the convex rod 154 through the temperature change, deformation board 155 is memory metal, deformation board 155's high temperature looks shape is "L" shape structure, deformation board 155's low temperature looks shape is "V" shape structure, after outer jar 110 is damaged, outside gas enters into outer jar 110 in, low temperature in the liquid storage pot 130 alright propagate through the external gas, make deformation board 155 temperature step-down, deformation board 155 receives the low temperature influence to become low temperature looks shape this moment, it buckles to be close to the tip of nose bar 154 to become board 155 promptly, deformation board 155 cancels the promotion to nose bar 154 this moment, high-pressure gas in the cooling chamber 121 overcomes compression spring 153, telescopic link 152 shrink drives valve 151, valve 151 removes and makes air inlet 141 open, outside gas just enters into reposition of redundant personnel chamber 140 in, the lateral wall that valve 151 is close to telescopic link 152 simultaneously and the laminating of reposition of redundant personnel chamber 140 lateral wall of redundant personnel chamber, prevent that gas from revealing through the department of penetrating of telescopic link 152.
Further, in order to reduce the dependence on the deformation plate 155, an insertion plate 156 is longitudinally slidably disposed on the outer wall of the temperature reduction cavity 121, the bottom end of the insertion plate 156 is attached to the end portion of the protruding rod 154, the top end of the insertion plate 156 is bent towards the deformation plate 155, the bent end of the deformation plate 155 is attached to the bottom of the bent end of the insertion plate 156, and the protruding rod 154 can be pushed only when the deformation plate 155 needs strong hardness, so that the protruding rod 154 is blocked by the insertion plate 156, the protruding rod 154 cannot move towards the insertion plate 156, the deformation plate 155 only needs to be deformed at low temperature to lift the insertion plate 156, the insertion plate 156 moves upwards to separate from the protruding rod 154 at the moment, the protruding rod 154 is cancelled to be limited, and the valve 151 can open the air inlet 141.
Still further, in order to improve the thermal-insulated effect to in the heat preservation chamber 111, heat preservation chamber 111 is the vacuum structure, and outer jar 110 inner wall is fixed and is provided with heated board 160, and when outer jar 110 damaged back, gaseous entering into heat preservation chamber 111 in, the gas in with heat preservation chamber 111 is extruded through damaged mouthful after the sealed cowling 143 inflation, and the sealed cowling 143 contacts with heated board 160 inner wall, and heated board 160 insulates against heat to external temperature to the thermal-insulated effect to in the heat preservation chamber 111 has been improved.
Further, the deformation plate 155 is a memory metal including copper-based shape memory alloy, iron-based shape memory alloy, and nickel titanium alloy.
A third embodiment, which is implemented on the basis of the first embodiment, in view of that when the liquid storage tank 130 is damaged, the gas is not discharged through the connection pipe 131 but through the damaged opening, at this time, the exhaust valve 230 does not work, and the heat conducting rod 235 cannot contact with the refrigeration plate 122, as shown in fig. 12, wherein the bottom of the liquid storage tank 130 is provided with a through hole 170, the inner wall of the bottom of the liquid storage tank 130 is fixedly provided with a piston cylinder 171, the piston cylinder 171 is communicated with the through hole 170, the piston rod 172 is slidably arranged in the piston cylinder 171, the top end of the piston rod 172 is fixedly connected with the bottom of the spoiler 212, when the liquid storage tank 130 is damaged, the gas enters the cooling cavity 121, the pressure in the cooling cavity 121 increases to overcome the friction force between the piston rod 172 and the piston cylinder 171, the piston rod 172 is pushed to move upward, and the spoiler 212, the connection rod 211, the baffle 231 and the heat conducting rod 235 are driven to move upward, thereby ensuring that the heat conduction rod 235 is in contact with the refrigeration plate 122.
The foregoing shows and describes the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a storage device is revealed to liquid hydrogen safety of many inlayers large capacity, includes storage jar (100) and cooling mechanism (200) of setting in storage jar (100), storage jar (100) are including outer jar (110), well jar (120) and liquid storage pot (130), well jar (120) set up inside outer jar (110), form heat preservation chamber (111) between outer jar (110) inner wall and well jar (120) outer wall, liquid storage pot (130) set up inside well jar (120), form cooling chamber (121), its characterized in that between well jar (120) inner wall and liquid storage pot (130) outer wall: well jar (120) top inner wall is provided with a plurality of refrigeration boards (122), liquid storage pot (130) top intercommunication has a plurality of connecting pipes (131), connecting pipe (131) are used for carrying liquid hydrogen, jar (120) and outer jar (110) in connecting pipe (131) run through, gas vent (132) have been seted up at the top of liquid storage pot (130), gas vent (132) top is provided with baffle (231), baffle (231) outer lane is fixed and is provided with a plurality of heat conduction pole (235), heat conduction pole (235) contact with refrigeration board (122) when shifting up, cooling mechanism (200) include at least:
the inner cooling part (210) comprises a connecting rod (211), the connecting rod (211) is longitudinally arranged in the liquid storage tank (130), a plurality of spoilers (212) are fixedly arranged on the connecting rod (211), the spoilers (212) are fixedly connected through a connecting column (213), and the heat conducting rod (235), the baffle (231), the connecting rod (211) and the spoilers (212) can conduct heat;
the outer flow guide part (220) comprises a baffle ring (221), the baffle ring (221) is arranged in the cooling cavity (121), an inner ring of the baffle ring (221) is fixedly arranged above the outer wall of the liquid storage tank (130), an outer ring of the baffle ring (221) is attached to an inner ring of the middle tank (120), a liquid discharge port (222) is formed in the top of the baffle ring (221) in a penetrating mode, and the liquid discharge port (222) is close to the inner ring of the baffle ring (221);
and when the air pressure in the liquid storage tank (130) is greater than the elastic force in the air outlet valve (230), the air outlet valve (230) drives the baffle (231) to move upwards.
2. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 1, wherein: the exhaust valve (230) comprises a sleeve (232), the sleeve (232) is fixedly arranged at the top of the baffle (231), a straight rod (233) is arranged in the sleeve (232) in a sliding mode, the top end of the straight rod (233) is fixedly connected with the inner wall of the top end of the middle tank (120), and a return spring (234) is fixedly arranged between the inner wall of the top of the middle tank (120) and the top end of the baffle (231).
3. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 1, wherein: the top of the baffle ring (221) is provided with a diversion trench (225), and the diversion trench (225) inclines downwards towards the liquid outlet (222).
4. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 1, wherein: the bottom of the baffle ring (221) is fixedly provided with a limiting pipe (223), the limiting pipe (223) is located on the periphery of the liquid outlet (222), and a limiting cavity (224) is formed between the limiting pipe (223) and the liquid storage tank (130).
5. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 1, wherein: well jar (120) inside has been seted up reposition of redundant personnel chamber (140), air inlet (141) have been seted up to well jar (120) inner wall, air inlet (141) and reposition of redundant personnel chamber (140) intercommunication, a plurality of exhaust holes (142) have been seted up to the outer wall of well jar (120), exhaust hole (142) and reposition of redundant personnel chamber (140) intercommunication, be provided with sealed cowling (143) in heat preservation chamber (111), sealed cowling (143) are fixed to be set up in well jar (120) outer wall, be provided with governing valve (150) in reposition of redundant personnel chamber (140), governing valve (150) will cool down the gaseous leading-in to reposition of redundant personnel chamber (140) in the chamber (121) after outer jar (110) damage.
6. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 5, wherein: the adjusting valve (150) comprises a valve (151), the valve (151) is arranged in a flow distribution cavity (140), the flow distribution cavity (140) is located on the side wall of an air inlet (141), a telescopic rod (152) is fixedly arranged on the side wall of the valve (151) far away from the air inlet (141), the telescopic rod (152) penetrates through the outer wall of the middle tank (120), one end of the telescopic rod (152) is fixedly arranged on the inner wall of the outer tank (110), a compression spring (153) is sleeved on the outer ring of the telescopic rod (152), one end of the compression spring (153) is connected with the side wall of the valve (151), the other end of the telescopic rod (152) is connected with the inner wall of the outer tank (110), a convex rod (154) is fixedly arranged on the side wall of the valve (151) located at the telescopic rod (152), a deformation plate (155) is fixedly arranged on the inner wall of the outer tank (110), and the deformation plate (155) is of an L-shaped structure, one end of the deformation plate (155) is attached to the end of the convex rod (154), and the deformation plate (155) cancels pushing of the convex rod (154) through temperature change.
7. The multiple inner-layer high-capacity liquid hydrogen safe and leak-free storage device according to claim 6, wherein: the cooling cavity (121) outer wall longitudinal sliding is provided with picture peg (156), the bottom of picture peg (156) is laminated with the tip of nose bar (154), the top of picture peg (156) is buckled to deformation board (155), the end laminating of buckling of deformation board (155) is in the bottom of picture peg (156) end of buckling.
8. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 5, wherein: the heat preservation cavity (111) is of a vacuum structure, and a heat preservation plate (160) is fixedly arranged on the inner wall of the outer tank (110).
9. The multiple inner-layer high-capacity liquid hydrogen safe and leak-free storage device according to claim 6, wherein: the deformable plate (155) is a memory metal including copper-based shape memory alloy, iron-based shape memory alloy, and nickel titanium alloy.
10. The multi-inner-layer high-capacity liquid hydrogen safe non-leaking storage device according to claim 1, wherein: the bottom of the liquid storage tank (130) is provided with a through hole (170), the inner wall of the bottom of the liquid storage tank (130) is fixedly provided with a piston cylinder (171), the piston cylinder (171) is communicated with the through hole (170), a piston rod (172) is slidably arranged in the piston cylinder (171), and the top end of the piston rod (172) is fixedly connected with the bottom of the spoiler (212).
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