CN117450421A - Liquid hydrogen ball tank supporting structure with skirt - Google Patents
Liquid hydrogen ball tank supporting structure with skirt Download PDFInfo
- Publication number
- CN117450421A CN117450421A CN202210844282.8A CN202210844282A CN117450421A CN 117450421 A CN117450421 A CN 117450421A CN 202210844282 A CN202210844282 A CN 202210844282A CN 117450421 A CN117450421 A CN 117450421A
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- China
- Prior art keywords
- spherical tank
- skirt
- inner spherical
- insulation box
- cold insulation
- 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
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 52
- 239000001257 hydrogen Substances 0.000 title claims abstract description 52
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000007788 liquid Substances 0.000 title claims abstract description 44
- 238000009413 insulation Methods 0.000 claims abstract description 66
- 238000003466 welding Methods 0.000 claims abstract description 5
- 239000011810 insulating material Substances 0.000 claims description 7
- 229910052755 nonmetal Inorganic materials 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000008259 solid foam Substances 0.000 claims description 2
- 238000003860 storage Methods 0.000 abstract description 26
- 238000001704 evaporation Methods 0.000 abstract description 5
- 230000008020 evaporation Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 150000002431 hydrogen Chemical class 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- 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
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
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- 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
- F17C13/08—Mounting arrangements for 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
-
- 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
- F17C2201/0128—Shape spherical or elliptical
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- 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
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
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- 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
- F17C2203/0329—Foam
-
- 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
- F17C2203/0337—Granular
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- 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
- F17C2203/0345—Fibres
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- 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
- F17C2203/0391—Thermal insulations by vacuum
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- 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
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
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- 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
- F17C2205/01—Mounting arrangements
- F17C2205/0103—Exterior arrangements
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- 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
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
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- 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
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- 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
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- 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
- F17C2260/031—Dealing with losses due to heat transfer
- F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
Landscapes
- 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 discloses a liquid hydrogen spherical tank supporting structure with a skirt, which comprises an inner spherical tank, a heat insulation layer, an outer spherical tank, an inner spherical tank skirt assembly and an outer spherical tank skirt assembly; the outer spherical tank is arranged outside the inner spherical tank, and the inner spherical tank skirt assembly comprises an inner spherical tank upper skirt assembly, a cold insulation box and an inner spherical tank lower skirt assembly which are arranged from top to bottom; the cold insulation box comprises a long round groove formed by welding a cold insulation box bottom plate and a cold insulation box side plate and a heat insulation block arranged in the long round groove, and the top of the cold insulation box side plate is welded with a limiting block below the cold insulation box cover plate; the inner spherical tank lower skirt assembly comprises a rib plate, an inner spherical tank lower skirt and a filling hole; the outer spherical tank supporting component comprises an outer spherical tank upper skirt seat and an outer spherical tank lower skirt seat, the liquid hydrogen spherical tank storage device is integrally supported on the foundation through the outer spherical tank skirt seat component, the integral supporting performance is reliable, the intrinsic safety of the liquid hydrogen spherical tank storage device is guaranteed, the heat leakage of the support column is reduced while the inner spherical tank is reliably supported, and the evaporation loss is reduced.
Description
Technical Field
The invention belongs to the field of petrochemical industry, relates to a liquid hydrogen storage technology, and in particular relates to a liquid hydrogen spherical tank supporting structure with a skirt.
Background
Hydrogen is used as an excellent energy carrier, has the advantages of high efficiency, cleanness, no pollution, sustainability and the like, and is one of the most promising clean energy at present. The key technology of hydrogen energy utilization comprises the preparation, storage, transportation and application of hydrogen, wherein the hydrogen storage is a key link in the hydrogen energy industry chain. The transportation and storage of the current hydrogen mainly takes high-pressure gaseous hydrogen as a main component, and compared with the gaseous hydrogen, the liquid hydrogen has the advantages of high purity, low remote transportation cost, high filling efficiency and the like.
The liquid hydrogen is colorless, odorless and transparent liquid, the boiling point of the liquid hydrogen is-252.8 ℃ under the standard atmospheric pressure, the density of the liquid hydrogen is 70.79kg/m < 3 >, and the density of the liquid hydrogen is 845 times higher than that of the gaseous hydrogen under the standard atmospheric pressure. Hydrogen has low gasification latent heat and high liquefaction difficulty. The hydrogen liquefaction process which has been used at present mainly comprises three types: precooling type linde-hanpson process, claort process and helium refrigeration liquefaction process, and the large-scale hydrogen liquefaction device mainly adopts precooling type claort process.
The liquid hydrogen is stored in an ultralow temperature liquid storage container with good heat insulation performance. The liquid hydrogen storage tanks can be classified into fixed type, movable type and tank type containers according to the use forms thereof. The fixed liquid hydrogen storage tank generally comprises a cylindrical storage tank (vertical type and horizontal type) and a spherical storage tank. The heat leakage evaporation loss of the storage tank is in direct proportion to the volume specific surface area (S/V) of the storage tank, and the spherical storage tank has the smallest specific surface area, so that the heat leakage evaporation area of the spherical tank is smallest under the same volume; from the mechanical aspect, the spherical storage tank has better stress than the cylindrical storage tank, high mechanical strength and even stress distribution; from the geometric perspective, the spherical storage tank has small surface area and small required steel area under the same volume and pressure; therefore, the spherical storage tank is an ideal fixed liquid hydrogen storage tank.
Liquid hydrogen is a medium that is extremely susceptible to external heat leakage. Therefore, there is a need for a support structure for a liquid hydrogen storage device that has a higher design requirement and that minimizes the amount of heat leakage from the support structure in addition to meeting the requirements for reliable support.
Patent CN110921124a provides a double-layer liquid storage spherical tank comprising an inner spherical tank, an outer spherical tank tube, a plurality of struts, a plurality of inner reinforcing plates and a plurality of outer support plates. The structure of the double-layer liquid storage spherical tank ensures the stability of the joint of the support column and the outer spherical tank through the reinforced design, ensures the tightness of the double-layer spherical tank, eliminates the risk factors of safety accidents caused by medium leakage, and is not suitable for storing low-temperature mediums.
Patent CN213930419U discloses a bearing structure of double-deck low temperature liquid hydrogen ball jar, including taking the spherical outer container of cavity, taking the spherical inner container of cavity, a plurality of bearing structure of group, bearing structure specifically mainly includes: the wall lugs, the upper supporting tubes, the connecting holes, the lower supporting tubes, the connecting supporting tubes, the inner wall supporting plates, the outer supporting tubes and the like. The structure considers the cold insulation requirement in the low-temperature medium storage, but does not consider the factors such as expansion caused by heat and contraction caused by cold of the inner spherical tank in the liquid hydrogen filling process, and the support structure is slightly complicated to install.
Disclosure of Invention
The invention provides a liquid hydrogen spherical tank supporting structure with a skirt, which aims to solve the problem that an inner spherical tank cannot shrink and expand freely when liquid hydrogen is loaded and unloaded due to large heat leakage of the liquid hydrogen spherical tank supporting structure.
The invention provides a liquid hydrogen spherical tank supporting structure with a skirt, which comprises an inner spherical tank, a heat insulation layer, an outer spherical tank, an inner spherical tank skirt assembly and an outer spherical tank skirt assembly, wherein the inner spherical tank is provided with a heat insulation layer; the inner wall of the inner spherical tank is contacted with liquid hydrogen, the outer spherical tank is arranged outside the inner spherical tank, and a heat insulation layer is arranged between the inner spherical tank and the outer spherical tank and is vacuumized; the inner spherical tank skirt assembly comprises an inner spherical tank upper skirt assembly, a cold insulation box and an inner spherical tank lower skirt assembly which are arranged from top to bottom, and the inner spherical tank is supported on the inner spherical tank upper skirt assembly; the inner spherical tank upper skirt assembly consists of an inner spherical tank upper skirt and an inner spherical tank upper skirt bottom plate, and the inner spherical tank upper skirt bottom plate is provided with a slotted hole; the cold insulation box comprises a long round groove formed by welding a cold insulation box bottom plate and a cold insulation box side plate and a heat insulation block arranged in the long round groove, and the top of the cold insulation box side plate is welded with a limiting block below the cold insulation box cover plate; the inner spherical tank lower skirt assembly comprises a rib plate, an inner spherical tank lower skirt and filling holes, wherein the rib plate and the top of the inner spherical tank lower skirt are connected with a cold insulation box bottom plate, and the filling holes are uniformly formed in the inner spherical tank lower skirt along the circumference; the outer spherical tank supporting component comprises an outer spherical tank upper skirt and an outer spherical tank lower skirt, wherein the outer spherical tank upper skirt is arranged right below the inner spherical tank lower skirt component and is connected with the outer spherical tank outer wall, and the outer spherical tank lower skirt is connected with the outer spherical tank upper skirt.
As an improved scheme, the length of the straight edge of the oblong hole formed in the skirt base plate on the inner spherical tank is determined through thermal expansion calculation and rounded upwards.
As a further improvement scheme, the inner spherical tank lower skirt assembly further comprises a base plate, the inner spherical tank lower skirt bottom is connected with the base plate, and the base plate is welded on the inner side of the outer spherical tank, so that the outer spherical tank wall supporting capacity can be enhanced.
As a further improved scheme, the upper skirt assembly of the inner spherical tank and the cold insulation box are connected with the upper skirt bottom plate of the inner spherical tank through the cold insulation box cover plate, and the cold insulation box bottom plate is welded with the lower skirt of the inner spherical tank; and filling and wrapping the elastic felt in the gap between the upper skirt of the inner spherical tank and the inner spherical tank after being installed in place.
As a further improvement scheme, separate cold box still includes bolt, nut, nonmetal pad separate cold box apron top welding bolt, be in the same place skirt bottom plate and apron connection on the interior spherical tank through bolt and nut skirt bottom plate and cold box apron and nut and separate and all set up nonmetal pad between the cold box apron on the interior spherical tank to reduce coefficient of friction.
As a further improvement scheme, the inner spherical tank upper skirt assembly and the inner spherical tank lower skirt assembly are eccentrically installed during installation, the inner spherical tank upper skirt assembly is farther from the spherical tank center line than the inner spherical tank lower skirt assembly, and the distance difference is determined through thermal expansion calculation.
As a further improved scheme, the lower skirt of the outer spherical tank is identical to the upper skirt of the outer spherical tank in specification and different in material, and the lower skirt bottom plate of the outer spherical tank is provided with a lower foot bolt seat and an access hole.
As a further improvement, the inner spherical tank lower skirt, the outer spherical tank upper skirt and the outer spherical tank lower skirt are aligned in pitch diameter.
As a further improvement, the space between the inner and outer spherical tanks is vacuumized to 5-10 Pa after the heat insulating material is piled up to form a heat insulating layer, and the heat insulating material is one or more of solid foam, powder and fiber.
The invention has the following beneficial effects:
1) The whole liquid hydrogen spherical tank storage device is supported on the foundation through the outer spherical tank skirt assembly, the whole supporting performance is reliable, and the intrinsic safety of the liquid hydrogen spherical tank storage device is ensured;
2) The inner spherical tank is supported inside the outer spherical tank by the inner spherical tank skirt assembly, a cold insulation box is arranged between the upper skirt assembly and the lower skirt assembly of the inner spherical tank, and the cold insulation elastic felt is wrapped, so that the heat leakage of the support column is reduced while the inner spherical tank is reliably supported, the liquid hydrogen evaporation rate is ensured, and the evaporation loss is reduced;
3) And a nonmetal pad for reducing friction coefficient is arranged between the upper support of the inner spherical tank and the cold insulation box, so that the skirt on the inner spherical tank can slide along the radial direction, and the thermal expansion displacement of the inner spherical tank can be absorbed.
Drawings
FIG. 1 is a schematic view of a liquid hydrogen balloon support structure with a skirt according to the present invention;
FIG. 2 is a partial detail view of the support structure of FIG. 1;
FIG. 3 is a detail view of the upper skirt floor of the inner spherical tank of FIG. 2;
FIG. 4 is a detail view of the cold box of FIG. 1;
FIG. 5 is an A-direction view of the fill hole of FIG. 1;
fig. 6 is a top view of the lower skirt of the inner spherical tank of fig. 1.
In the figure: 1-inner spherical tank, 2-outer spherical tank, 3-heat insulation layer, 4-inner spherical tank upper skirt assembly, 5-cold insulation box, 6-inner spherical tank lower skirt assembly, 7-outer spherical tank upper skirt, 8-outer spherical tank lower skirt, 9-anchor bolt seat, 10-access hole, 11-inner spherical tank upper skirt, 12-elastic felt, 13-inner spherical tank upper skirt bottom plate, 14-cold insulation box bottom plate, 15-cold insulation box side plate, 16-cold insulation box cover plate, 17-bolt, 18-nut, 19-nonmetallic pad, 20-heat insulation block, 21-rib plate, 22-inner spherical tank lower skirt seat, 23-filling hole and 24-backing plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the liquid hydrogen spherical tank supporting structure with the skirt seat in the embodiment comprises an inner spherical tank 1 and an outer spherical tank 2, wherein the inner spherical tank 1 is suspended in a cavity of the outer spherical tank 2, and a heat insulation layer 3 is arranged between the inner spherical tank 1 and the outer spherical tank 2; an inner spherical tank upper skirt assembly 4, a cold insulation box 5 and an inner spherical tank lower skirt assembly 6 are arranged on the inner spherical tank 2 and used for supporting the inner spherical tank 1; the outer spherical tank 2 is externally provided with an outer spherical tank upper skirt 7 and an outer spherical tank lower skirt 8 which are used for supporting the whole liquid hydrogen spherical tank storage equipment.
As shown in fig. 1, an insulating material is deposited between an inner spherical tank 1 and an outer spherical tank 2 in this example, and after the insulating material is deposited, the vacuum is applied to about 5 to 10Pa to form an insulating layer 3, thereby realizing the insulating protection of the inner spherical tank 1, and the insulating material generally includes foam, powder, fiber, and the like.
As shown in fig. 2 and 3, an elastic felt 12 is filled between the inner spherical tank 1 and the upper inner spherical tank skirt 11, and the bottom of the upper inner spherical tank skirt 11 is connected with a bottom plate 13 of the upper inner spherical tank skirt. The upper skirt base plate 13 of the inner spherical tank is provided with a slotted hole, and the length of the slotted hole is calculated through thermal expansion and rounded upwards.
As shown in fig. 2 and 4, the upper skirt assembly 4 of the inner spherical tank is connected with the cold insulation box 5 through bolts and nuts, and the lower part of the cold insulation box 5 is connected with the lower pillar assembly 6 of the inner spherical tank through welding. The cold insulation box 5 is formed by a cold insulation box bottom plate 14, a cold insulation box side plate 15 and a cold insulation box cover plate 16 into a long round groove, and a heat insulation block 20 is arranged in the long round groove, wherein the heat insulation block 20 is required to have good heat insulation performance and compression resistance; bolts 17 are arranged on the cold insulation box cover plate 16. During installation, the cold insulation box cover plate 16 is connected with the inner spherical tank upper skirt base plate 13 through bolts 17 and nuts 18, a nonmetallic pad 19 is arranged between the cold insulation box cover plate 16 and the inner spherical tank upper skirt base plate 13, when the nuts 18 are screwed, 1-2 fastening threads are loosened back after the first nuts are screwed, and then the inner spherical tank upper skirt base plate is locked by the second nuts, so that the inner spherical tank upper skirt base assembly 4 can slide freely; at the same time, the center line of the inner spherical tank lower skirt assembly 6 is not on the same straight line with the center line of the inner spherical tank upper skirt assembly 4, and the inner spherical tank lower skirt assembly 6 is closer to the spherical tank equipment center line.
As shown in fig. 2, the upper part of the lower skirt 22 of the inner spherical tank is connected with the bottom plate 14 of the cold insulation box, and a rib plate 21 is arranged, a plurality of filling holes 23 are formed in the lower skirt 22 of the inner spherical tank, the filling holes 23 are of an arch door opening structure, so that heat insulation materials are convenient to fill, the lower part of the lower skirt 22 of the inner spherical tank is connected with a base plate 24, the base plate 24 is connected with the inner wall of the outer spherical tank 2, the bearing capacity of the outer spherical tank 2 is further improved, and the outer spherical tank 2 is ensured not to be partially failed due to partial load.
As shown in fig. 6, the cold insulation box bottom plate 14 and the filling holes 23 are respectively 10, and are mutually staggered and circumferentially distributed on the lower skirt 22 of the inner spherical tank.
As shown in fig. 1, the outer spherical tank 2 is connected with an outer spherical tank skirt seat 7, an outer spherical tank upper skirt seat 7 is welded with an outer spherical tank lower skirt seat 8, a lower skirt seat 8 bottom of the outer spherical tank is provided with a lower anchor bolt seat 9, the lower anchor bolt seat 9 is fixed on a concrete foundation through anchor bolts, an access hole 10 is formed in the outer spherical tank lower skirt seat 9, and the two access holes 10 are arranged at an included angle of 180 degrees.
As shown in fig. 1, the inner spherical tank lower skirt 22, the outer spherical tank upper skirt 7 and the outer spherical tank lower skirt 8 need to ensure the alignment of the pitch diameters during the design and installation process.
The above description is only a typical example of the invention and is not intended to limit the invention in any way. Any person skilled in the art should consider equivalent examples of equivalent variations using the above technical content, without departing from the scope of the technical solution of the present invention. Any equivalent changes to the above examples according to the technical substance of the present invention fall within the scope of the technical solution of the present invention, all without departing from the technical solution of the present invention.
Claims (9)
1. The utility model provides a take liquid hydrogen ball jar bearing structure of skirt which characterized in that: the support structure comprises an inner spherical tank, a heat insulation layer, an outer spherical tank, an inner spherical tank skirt seat assembly and an outer spherical tank skirt seat assembly; the outer ball tank is arranged outside the inner ball tank, and a heat insulation layer is arranged between the inner ball tank and the outer ball tank and is vacuumized; the inner spherical tank skirt assembly comprises an inner spherical tank upper skirt assembly, a cold insulation box and an inner spherical tank lower skirt assembly which are arranged from top to bottom, and the inner spherical tank is supported on the inner spherical tank upper skirt assembly; the inner spherical tank upper skirt assembly comprises an inner spherical tank upper skirt and an inner spherical tank upper skirt bottom plate, and a slotted hole is formed in the inner spherical tank upper skirt bottom plate; the cold insulation box comprises a long round groove formed by welding a cold insulation box bottom plate and a cold insulation box side plate and a heat insulation block arranged in the groove, and the top of the cold insulation box side plate is welded with a limiting block below the cold insulation box cover plate; the inner spherical tank lower skirt assembly comprises a rib plate, an inner spherical tank lower skirt and filling holes, wherein the rib plate and the top of the inner spherical tank lower skirt are connected with a cold insulation box bottom plate, and the filling holes are uniformly formed in the inner spherical tank lower skirt along the circumference; the outer spherical tank supporting component comprises an outer spherical tank upper skirt and an outer spherical tank lower skirt, wherein the outer spherical tank upper skirt is arranged right below the inner spherical tank lower skirt component and is connected with the outer spherical tank outer wall, and the outer spherical tank lower skirt is connected with the outer spherical tank upper skirt.
2. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the straight edge length of the oblong hole formed in the skirt base plate on the inner spherical tank is determined through thermal expansion calculation and rounded upwards.
3. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the inner spherical tank lower skirt assembly further comprises a base plate, the bottom of the inner spherical tank lower skirt is connected with the base plate, and the base plate is welded on the inner side of the outer spherical tank.
4. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the inner spherical tank upper skirt assembly and the cold insulation box are connected with the inner spherical tank upper skirt bottom plate through the cold insulation box cover plate, the cold insulation box bottom plate is welded with the inner spherical tank lower skirt, and the gap between the inner spherical tank upper skirt and the inner spherical tank after being installed in place is filled with and wrapped with the elastic felt.
5. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the cold insulation box further comprises bolts, nuts and nonmetal pads, wherein the bolts are welded above the cold insulation box cover plate, the skirt base plate and the cover plate are connected together through the bolts and the nuts, and nonmetal pads are arranged between the skirt base plate and the cold insulation box cover plate and between the nuts and the cold insulation box cover plate on the inner spherical tank.
6. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the upper spherical tank skirt assembly and the lower spherical tank skirt assembly are eccentrically arranged, the upper spherical tank skirt assembly is farther from the center line of the spherical tank than the lower spherical tank skirt assembly, and the distance difference is determined through thermal expansion calculation.
7. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the outer ball tank lower skirt is identical to the outer ball tank upper skirt in specification and different in material, and the outer ball tank lower skirt bottom plate is provided with a lower foot bolt seat and an access hole.
8. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the inner spherical tank lower skirt and the outer spherical tank upper skirt are aligned with the outer spherical tank lower skirt in pitch diameter.
9. The liquid hydrogen balloon support structure with skirt according to claim 1, wherein: the space between the inner ball tank and the outer ball tank is vacuumized to 5-10 Pa after a heat insulating material is piled up to form a heat insulating layer, and the heat insulating material is one or more of solid foam, powder and fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210844282.8A CN117450421A (en) | 2022-07-18 | 2022-07-18 | Liquid hydrogen ball tank supporting structure with skirt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210844282.8A CN117450421A (en) | 2022-07-18 | 2022-07-18 | Liquid hydrogen ball tank supporting structure with skirt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117450421A true CN117450421A (en) | 2024-01-26 |
Family
ID=89578648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210844282.8A Pending CN117450421A (en) | 2022-07-18 | 2022-07-18 | Liquid hydrogen ball tank supporting structure with skirt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117450421A (en) |
-
2022
- 2022-07-18 CN CN202210844282.8A patent/CN117450421A/en active Pending
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