CN109058755A - A kind of vertical low temperature gas tank - Google Patents
A kind of vertical low temperature gas tank Download PDFInfo
- Publication number
- CN109058755A CN109058755A CN201811055506.7A CN201811055506A CN109058755A CN 109058755 A CN109058755 A CN 109058755A CN 201811055506 A CN201811055506 A CN 201811055506A CN 109058755 A CN109058755 A CN 109058755A
- Authority
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- China
- Prior art keywords
- liner
- upper cover
- shell
- interior
- lower head
- 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
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 238000003780 insertion Methods 0.000 claims abstract description 4
- 230000037431 insertion Effects 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 35
- 238000003466 welding Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000011152 fibreglass Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000037361 pathway Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000012546 transfer Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 210000000232 gallbladder Anatomy 0.000 description 3
- 239000005030 aluminium foil Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/12—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge 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
- 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
- F17C13/06—Closures, e.g. cap, breakable member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0104—Shape cylindrical
- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/03—Orientation
- F17C2201/032—Orientation with substantially vertical main axis
-
- 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
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of vertical low temperature gas tanks, and top braces filling structure is provided between shell upper cover and liner upper cover；Bottom fixing structure is provided between shell lower head and liner lower head.Isolation cover is equipped between liner upper cover and liner；Top braces filling structure passes through in shell upper cover and liner upper cover insertion isolation cover；Being provided with evacuation tube in the evacuation passageway and shell upper cover being arranged in top braces filling structure may be implemented to vacuumize.In liner lower head bottom, interior lining ring, the inside of interior lining ring and fixing axle clearance fit is arranged in fixing axle external circumferential for the fixing axle setting of bottom fixing structure, setting support lantern ring on the outside of interior lining ring；At least three support plates are evenly arranged with along support lantern ring excircle direction, each support plate other end and shell lower head inner wall weld, so that being connected between liner upper cover and shell upper cover reliable, thermal insulation is good, avoids the rigid connection between shell lower head and liner lower head because of flexible damage tank body.
Description
Technical field
The present invention relates to the gas tanks for storing cryogenic gas, and in particular to a kind of vertical low temperature gas tank.
Background technique
Natural gas is a kind of environmental clean high-grade energy, nontoxic, hardly sulfur-bearing, dust and other harmful substances matter, therefore
The use of natural gas can fundamentally improve environmental quality, and since it is easily distributed, specific gravity is lighter than air, is not easy to be accumulated into quick-fried
Fried property gas, relatively safety.Therefore, there is the development trend of the fuel such as replacing gasoline, diesel oil in natural gas future.
It is widelyd popularize by country, natural gas will become the following most important fuel, the power source of all kinds of large scale equipments
Design also will more use natural gas energy-provision way.Gas equipment, in order to guarantee equipment performance, keeps for gas supply in design
The installation site of system and space are all kinds of, and existing low temperature gas tank is generally horizontal type structure on the market at present.But due to existing
The installation requirement in all equipped spaces cannot be fully met by having horizontal gas tank, and volume can not meet the period consumption need of equipment
It asks, therefore, many equipment can only be equipped with vertical gas tank, but state problem in the presence of existing vertical gas tank:
1, it is unreliable to connect between liner upper cover and shell upper cover, so that low temperature gas tank thermal insulation is poor；
2, plus during row's cryogenic liquid, liner is easy to make to seal under low temperature gas tank shell since temperature change causes to stretch
Rigid connection between head and liner lower head is because of flexible damage tank body；
3, during filling cryogenic liquid, when filling gun or liquidometer when something goes wrong, cryogenic liquid overcharges, and leads to gas
Phase space is insufficient, causes danger.
Summary of the invention
It is unreliable to solve to connect between tank body liner upper cover and shell upper cover existing for existing vertical low temperature gas tank
It is poor with thermal insulation, and add row cryogenic liquid during, the rigidity between low temperature gas tank shell lower head and liner lower head connects
The deficiency that tank body is damaged because flexible is connect, the present invention provides a kind of vertical low temperature gas tank.
In order to solve the above technical problems, The technical solution adopted by the invention is as follows:
A kind of vertical low temperature gas tank, including shell, liner, shell upper cover, liner upper cover, shell lower head and liner
Lower head is provided with top braces filling structure between the shell upper cover and liner upper cover；The shell lower head and
Bottom fixing structure is provided between liner lower head；
It is characterized in that
Isolation cover is provided between the liner upper cover and liner；The top braces filling structure passes through to be sealed on shell
In head and liner upper cover insertion isolation cover；The first cavity is formed between the top braces filling structure and isolation cover, it is described
The second cavity is formed between shell upper cover and liner upper cover, be provided on the top braces filling structure by the first cavity and
The evacuation passageway of second cavity connection；Evacuation tube, evacuation tube and the second cavity connection are provided on shell upper cover；
The top braces filling structure is equipped with inlet opening and fluid hole, and inlet is provided on liner upper cover and is gone out
Liquid mouth, the inlet opening and fluid hole form feed pathway and liquid are logical out respectively with inlet and liquid outlet by piping connection
Road；
The bottom fixing structure includes support plate, support lantern ring, fixing axle and interior lining ring；Including the fixing axle setting
Gallbladder lower head bottom, fixing axle external circumferential are arranged the interior lining ring, and interior lining ring is " convex " type structure, the inside of interior lining ring and solid
Dead axle clearance fit, interior lining ring outside setting support lantern ring, supports and is equipped with limited block between lantern ring and interior lining ring；Along support sleeve
Ring outer circle circumferential direction is evenly arranged at least three support plates, each support plate one end connects with support sleeve boxing, the other end with
The welding of shell lower head inner wall.
Further, surge tank, surge tank top and liner upper cover inside are provided between the liner and isolation cover
Welding, surge tank bottom centre offer aperture, and the aperture of the aperture is less than the bore of inlet.
Further, the top braces filling structure includes that interior additional row pipeline connects edge, interior outer tank connecting shaft, interior
Gallbladder is become attached to and connect cover cylinder；Interior additional row pipeline connects edge and interior outer tank connecting shaft is connected from top to bottom be welded into one it is whole
Body, and sequentially pass through shell upper cover and liner upper cover；Shell upper cover is stretched out on the top that interior additional row pipeline connects edge,
The lower part of interior outer tank connecting shaft is protruded into liner upper cover；Interior additional row pipeline connects edge and shell upper cover and passes through welding side
Formula is fixed, and shell upper cover upper outside connect with interior additional row pipeline and connects edge junction equipped with the first reinforcement gusset；It is described
Interior additional row pipeline, which connects in edge, is provided with inlet opening and fluid hole；Connect cover cylinder top and liner are become attached to butt welding, interior
Outer tank connecting shaft is become attached to through liner, and interior outer tank connecting shaft bottom and connect cover cylinder are weldingly fixed on liner upper cover, inside and outside
Tank connecting shaft bottom and connect cover cylinder junction are equipped with the second reinforcement gusset, so that liner upper cover, shell upper cover is secured
Link together；Liner becomes attached to and forms the first air duct between interior outer tank connecting shaft；Connect cover cylinder is connect with interior outer tank
The second air duct with the first air duct connection is equipped between axis；It is offered on the connect cover cylinder and the second air duct
The radial through-hole of connection；First air duct, the second air duct and radial through-hole constitute evacuation passageway.
Further, the interior lining ring is glass reinforced plastic steel ring.
Further, the outside of the support plate other end is also welded with supporting pad, supporting pad and shell lower head inner wall
Welding.
Further, the interior outer tank connecting shaft is the hollow structure of top closure.
Further, the interior outer tank connecting shaft length is 315mm.
Further, the interior lining ring small end axial width is 30mm, interior lining ring radial thickness 50mm, wherein radial big
Hold thickness 40mm, radial small end thickness 10mm.
Further, the through-hole is two.
Further, the diameter of two through-holes is 20mm.
The present invention has the beneficial effect that compared with prior art
1, isolation cover is provided between the liner upper cover and liner, the top braces filling structure passes through on shell
In end socket and liner upper cover insertion isolation cover, realizes being reliably connected between liner upper cover and shell upper cover, make simultaneously
It obtains the cryogenic liquid that liner loads to be isolated with top braces filling structure, avoids cryogenic liquid and top braces filling structure
Direct contact, to realize heat-insulated.
2, it is formed on the first cavity and shell upper cover and liner and is sealed between the top braces filling structure and isolation cover
Form the second cavity between head and be connected to form evacuation passageway, the evacuation tube being arranged in evacuation passageway and shell upper cover with
Second cavity connection can extract entire top braces filling connection structure by the evacuation tube being arranged on shell when vacuumizing
Internal and all spaces between liner and shell air, further improve the cryogenic property of gas tank, thermal insulation is good, together
When can satisfy the space requirement of vertical gas tank installation.
3, bottom fixing structure makes the fixed safety jail between vertical low temperature gas tank shell lower head and liner lower head
It leans on, 360 ° of liner circumferential direction is constrained after assembly, and axial unfettered, liner is since temperature change is drawn during adding row's cryogenic liquid
Stretching for rising can discharge freely, while realize circumferential constraint and axial flexible connection, avoid rigid connection damage tank body.
4, the bottom centre of surge tank offers aperture, and the aperture of aperture is less than the bore of inlet, when filling, works as liquid level
When not crossing buffering pot bottom aperture, surge tank starts feed liquor, at this point, the liquid level of liner is faster than buffering tank level rising, when
When filling gun is closed by canful back pressure, surge tank is not completely filled with, and the liquid of liner can progress into surge tank, surge tank liquid
Face rises, and the decline of liner liquid level, final liner liquid level is concordant with buffering jar liquid surface, just will form gas-phase space at the top of liner, i.e.,
So that filling gun or liquidometer is gone wrong can also prevent from overcharging, to realize higher degree of safety.
5, the interior lining ring of bottom fixing structure is glass reinforced plastic steel ring, and heat-insulating property is excellent and intensity is only second to metal, material
It is small by external force deformation, it can guarantee the complete firm fixation between gas tank liner and shell, and it is small to leak heat.
6, each support plate one end and support sleeve boxing connect, and the outside of the other end is also welded with supporting pad, supporting pad with
Shell lower head inner wall welding, so that forced area is expanded, so that the fixation of gas tank bottom is relatively reliable.
7, interior outer tank connecting shaft uses the hollow structure of top closure, can mitigate top in the case where proof strength
The weight of filling structure is supported, while reducing heat transfer area, promotes heat-proof quality.
8, under the premise of guaranteeing that connection is safe and reliable in structure design, the maximum safe length of interior outer tank connecting shaft is taken
315mm reduces leaking heat by elongating heat transfer distances.
9, installation space and process operability are comprehensively considered in structure design, and " convex " type is arranged in fixing axle external circumferential
Lining ring in structure elongates the axial width of interior lining ring as far as possible, reduces its radial dimension, and interior lining ring small end axial width is
30mm, interior lining ring radial thickness 50mm, wherein radial big end thickness 40mm, radial small end thickness 10mm, interior lining ring heat transfer distances
For maximum value 50mm, heat transfer contact area is minimum value, and low temperature is held time length, cryogenic property guarantees degree height, so that gas tank
Use more safety and economy.
Detailed description of the invention
Fig. 1 is vertical low temperature gas tank overall structure diagram of the invention；
Fig. 2 is vertical low temperature gas tank top braces filling structure schematic diagram of the invention；
Fig. 3 is vertical low temperature gas tank bottom fixing structure schematic diagram of the invention；
Fig. 4 is vertical low temperature gas tank bottom fixing structure partial schematic diagram of the invention；
Description of symbols:
1- shell upper cover；2- liner upper cover；3- isolation cover；Additional row pipeline connects edge in 31-；32- first is mended
Strengthening tendons plate；Outer tank connecting shaft in 33-；34- liner is become attached to；35- connect cover cylinder；36- the second reinforcement gusset；The first air of 37- is logical
Road；The second air duct of 38-；39- through-hole；4- surge tank；5- shell lower head；6- liner lower head；71- support plate；72- branch
Support set ring；73- fixing axle；Lining ring in 74-；75- block；81- inlet opening；82- fluid hole；83- inlet；84- liquid outlet；
85- aperture；9- evacuation tube.
Specific embodiment
With reference to the accompanying drawing, the present invention is further elaborated, in order to be more clearly understood that the present invention is claimed
Technical concept.
It is as shown in Figure 1 vertical low temperature gas tank of the invention, including shell, liner, shell upper cover 1, liner upper cover
2, shell lower head 5 and liner lower head 6 are provided with top braces filling between the shell upper cover 1 and liner upper cover 2
Structure；Bottom fixing structure is provided between the shell lower head 5 and liner lower head 6；The liner upper cover 2 and liner
Between be provided with isolation cover 3；The top braces filling structure passes through shell upper cover 1 and liner upper cover 2 is inserted into isolation cover 3
It is interior；The first cavity, the shell upper cover 1 and liner upper cover 2 are formed between the top braces filling structure and isolation cover 3
Between form the second cavity, be provided on the top braces filling structure vacuumizing for the first cavity and the second cavity connection is logical
Road；Evacuation tube 9, evacuation tube 9 and the second cavity connection are provided on shell upper cover 1；The filling structure is equipped with a feed liquor
Hole 81 and a fluid hole 82, the inlet 83 and liquid outlet 84 being arranged on liner upper cover 2, the inlet opening 81 and fluid hole 82
Feed pathway and liquid outlet channel are formed by piping connection with inlet 83 and liquid outlet 84 respectively.
Specifically, the top filling filling structure includes that interior additional row pipeline connects edge 31, interior outer tank connecting shaft
33, liner is become attached to 34 and connect cover cylinder 35；Interior additional row pipeline connects edge 31 and interior outer tank connecting shaft 33 is connected from top to bottom
It is welded into an entirety, and sequentially passes through shell upper cover 1 and liner upper cover 2；Interior additional row pipeline connects the upper of edge 31
Shell upper cover 1 is stretched out in portion, and the lower part of interior outer tank connecting shaft 33 is protruded into liner upper cover 2；Interior additional row pipeline connects edge
31 are fixed with shell upper cover 1 by welding manner, and 1 upper outside of shell upper cover connect with interior additional row pipeline and connects edge 31
Junction is equipped with the first reinforcement gusset 32；The interior additional row pipeline, which connects, is provided with inlet opening 81 and fluid hole in edge 31
82；35 top of connect cover cylinder and liner are become attached to 34 butt welding, and interior outer tank connecting shaft 33 becomes attached to 34 through liner, interior outer tank connection
33 bottom of axis and connect cover cylinder 35 are weldingly fixed on liner upper cover 2, and interior 33 bottom of outer tank connecting shaft and connect cover cylinder 35 connect
It meets place and is equipped with the second reinforcement gusset 36, so that liner upper cover 2, shell upper cover 2 are securely attached together；Liner is become attached to
The first air duct 37 is formed between 34 and interior outer tank connecting shaft 33；Between connect cover cylinder 35 and interior outer tank connecting shaft 33 be equipped with
Second air duct 38 of 37 connection of the first air duct；It is offered on the connect cover cylinder 35 and 38 connection of the second air duct
Radial through-hole 39, the through-hole 39 be two, the diameter of two through-holes 39 is preferably all 20mm；First air duct
37, the second air duct 38 and radial through-hole 39 constitute evacuation passageway.Using this structure, top braces filling structure is worn
Shell upper cover 1 and liner upper cover 2 is crossed to be inserted into isolation cover 3, realize between liner upper cover 2 and shell upper cover 1 can
By connection, while liner is isolated with top braces filling structure, avoids the cryogenic liquid and top branch of liner loading
The direct contact of filling structure is supportted, is realized heat-insulated；Also, first is formed between the top braces filling structure and isolation cover 3
The second cavity is formed between cavity and shell upper cover 1 and liner upper cover 2 to be connected to form evacuation passageway, evacuation passageway with
9 connection of evacuation tube being arranged on shell upper cover 1, can extract entire top by the evacuation tube 9 being arranged on shell when vacuumizing
The air in all spaces inside portion's support filling connection structure and between liner and shell, further improves the low of gas tank
Warm nature energy, thermal insulation is good, while can satisfy the space requirement of vertical gas tank installation.
As shown in Figure 3 and Figure 4, bottom fixing structure includes support plate 71, support lantern ring 72, fixing axle 73 and interior lining ring
74；In 6 bottom of liner lower head, the interior lining ring 74, interior lining ring is arranged in 73 external circumferential of fixing axle for the setting of fixing axle 73
74 be " convex " type structure, and the inner ring side of interior lining ring 74 is inside, and outer ring side is outside, the inside of interior lining ring 74 and fixing axle
73 clearance fits, setting support lantern ring 72, supports and is equipped with limited block 75 between lantern ring 72 and interior lining ring 74 on the outside of interior lining ring 74,
The axial movement of interior lining ring 74 is limited by limited block 75；At least three are evenly arranged with along support 72 outer circle circumferential direction of lantern ring
Support plate 71, each 71 one end of support plate and support lantern ring 72 weld, and the other end and 5 inner wall of shell lower head weld, bottom
Fixed structure makes the fixed safety between low temperature gas tank shell lower head 5 and liner lower head 6 firm, and liner is circumferential after assembly
360 ° constrained, axial unfettered, and liner during row's cryogenic liquid is added to stretch and can discharge due to caused by temperature change
Freely, while circumferential constraint and axial flexible connection being realized, avoids rigid connection damage tank body.Preferably, each support plate
71 one end and support lantern ring 72 weld, and the outside of the other end is also welded with supporting pad, and supporting pad and 5 inner wall of shell lower head weld
It connects, so that forced area is expanded, so that the fixation of gas tank bottom is relatively reliable.
As shown in Fig. 2, surge tank 4 is provided between liner and isolation cover 3,4 top of surge tank and 2 inside of liner upper cover
Welding, 4 bottom centre of surge tank offer Φ 5mm aperture 85, and the aperture of the aperture 85 is less than gas station filling gun bore
DN25, when filling, when liquid level did not had 4 small hole at bottom part 85 of surge tank, surge tank 4 starts feed liquor, at this point, the liquid level of liner is than slow
It rushes liquid level in tank 4 and rises fast, when filling gun is closed by canful back pressure, surge tank 4 is not completely filled with, the liquid meeting of liner
Surge tank 4 is progressed into, 4 liquid level of surge tank rises, and the decline of liner liquid level, final liner liquid level is concordant with 4 liquid level of surge tank, interior
It just will form gas-phase space at the top of gallbladder, can prevent from overcharging filling gun or liquidometer go wrong, to realize higher
Degree of safety.
The interior lining ring 74 of bottom fixing structure is glass reinforced plastic steel ring, and heat-insulating property is excellent and intensity is only second to metal, this
Material is small by external force deformation, can guarantee that the fixation between gas tank liner and shell is completely firm, and it is small to leak heat.
The interior outer tank connecting shaft 33 is the hollow structure of top closure, can mitigate top in the case where proof strength
Portion supports the weight of filling structure, while reducing heat transfer area, promotes heat-proof quality.
The length of interior outer tank connecting shaft 33 has carried out finite element by tetra- kinds of length of 250mm, 280mm, 300mm, 330mm respectively
Mechanical analysis, under the premise of guaranteeing that connection is safe and reliable, the greatest limit safe length of interior outer tank connecting shaft 33 is 330mm,
Comprehensively consider to go bail for and keep length 315mm, it is therefore an objective to increase heat transfer distances to greatest extent, reduce leakage heat.
The convex portion of the interior lining ring 74 is small end, and another part is big end, comprehensively considers installation space and technique can
Operability, interior 74 small end axial width of lining ring are 30mm, interior 74 radial thickness 50mm of lining ring, wherein radial big end thickness 40mm,
Radial small end thickness 10mm, interior lining ring heat transfer distances are maximum value 50mm, and heat transfer contact area is small value.Low temperature is held time
Long, cryogenic property guarantee degree is high, so that the use of gas tank more safety and economy.
In order to low temperature gas tank liner and shell play the role of being thermally isolated, the inner bladder outer wall winds compound heat-insulation material
Expect glass aluminium foil.The glass aluminium foil is with a thickness of 15mm, and interlayer gap is 15mm after winding, and the volume of the liner is
1.25m3。
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations, for
For the those of ordinary skill of this field, it can modify to specific technical solution documented by foregoing embodiments,
Or equivalent replacement of some of the technical features, and these are modified or replaceed, and do not make the sheet of corresponding technical solution
Matter is detached from the range of institute's protection technique scheme of the present invention.
Claims (10)
1. a kind of vertical low temperature gas tank, including shell, liner, shell upper cover (1), liner upper cover (2), shell lower head
(5) and liner lower head (6) top braces filling knot, is provided between the shell upper cover (1) and liner upper cover (2)
Structure；Bottom fixing structure is provided between the shell lower head (5) and liner lower head (6)；
It is characterized by:
Isolation cover (3) are provided between the liner upper cover (2) and liner；The top braces filling structure passes through on shell
In end socket (1) and liner upper cover (2) insertion isolation cover (3)；It is formed between the top braces filling structure and isolation cover (3)
First cavity forms the second cavity, the top braces filling structure between the shell upper cover (1) and liner upper cover (2)
On be provided with the evacuation passageway of the first cavity and the second cavity connection；Evacuation tube (9) are provided on shell upper cover (1),
Evacuation tube (9) and the second cavity connection；
The top braces filling structure is equipped with inlet opening (81) and fluid hole (82), be provided on liner upper cover (2) into
Liquid mouth (83) and liquid outlet (84), the inlet opening (81) and fluid hole (82) are logical with inlet (83) and liquid outlet (84) respectively
Piping connection is crossed, feed pathway and liquid outlet channel are formed；
The bottom fixing structure includes support plate (71), support lantern ring (72), fixing axle (73) and interior lining ring (74)；It is described solid
The interior lining ring (74), interior lining ring is arranged in liner lower head (6) bottom, fixing axle (73) external circumferential in dead axle (73) setting
It (74) is " convex " type structure, the inside of interior lining ring (74) and fixing axle (73) clearance fit, setting support on the outside of interior lining ring (74)
Lantern ring (72) supports and is equipped with limited block (75) between lantern ring (72) and interior lining ring (74)；Along support lantern ring (72) excircle side
To at least three support plates (71) are evenly arranged with, each support plate (71) one end and support lantern ring (72) are welded, the other end
It is welded with shell lower head (5) inner wall.
2. vertical low temperature gas tank according to claim 1, it is characterised in that: be arranged between the liner and isolation cover (3)
Have surge tank (4), welded at the top of surge tank (4) on the inside of liner upper cover (2), surge tank (4) bottom centre offers aperture
(85), the aperture of the aperture (85) is less than the bore of inlet (83).
3. vertical low temperature gas tank according to claim 1 or 2, it is characterised in that: the top braces filling structure includes
Interior additional row pipeline connects edge (31), interior outer tank connecting shaft (33), liner and becomes attached to (34) and connect cover cylinder (35)；
Interior additional row pipeline, which connects edge (31) and interior outer tank connecting shaft (33), connects be welded into an entirety from top to bottom, and according to
It is secondary to pass through shell upper cover (1) and liner upper cover (2)；The top that interior additional row pipeline connects edge (31), which is stretched out on shell, to be sealed
Head (1), the lower part of interior outer tank connecting shaft (33) are protruded into liner upper cover (2)；
Interior additional row pipeline connects edge (31) and is fixed with shell upper cover (1) by welding manner, and on shell upper cover (1)
It is connect on the outside of portion with interior additional row pipeline and connects edge (31) junction equipped with the first reinforcement gusset (32)；The interior additional row pipeline connects
It connects in edge (31) and is provided with inlet opening (81) and fluid hole (82)；
Connect cover cylinder (35) top and liner are become attached to (34) butt welding, and interior outer tank connecting shaft (33) becomes attached to (34) through liner,
Interior outer tank connecting shaft (33) bottom and connect cover cylinder (35) are weldingly fixed on liner upper cover (2), interior outer tank connecting shaft (33)
Bottom and connect cover cylinder (35) junction are equipped with the second reinforcement gusset (36), thus by liner upper cover (2), shell upper cover
(1) it is securely attached together；Liner is become attached to (34) forms the first air duct (37) between interior outer tank connecting shaft (33)；Even
Connect the second air duct (38) being equipped between cover cylinder (35) and interior outer tank connecting shaft (33) with the first air duct (37) connection；
The radial through-hole (39) with the second air duct (38) connection is offered on the connect cover cylinder (35)；
First air duct (37), the second air duct (38) and radial through-hole (39) constitute evacuation passageway.
4. vertical low temperature gas tank according to claim 1, it is characterised in that: the interior lining ring (74) is glass reinforced plastic steel ring.
5. vertical low temperature gas tank according to claim 1, it is characterised in that: the outside of support plate (71) other end is also
It is welded with supporting pad, supporting pad and shell lower head (5) inner wall weld.
6. vertical low temperature gas tank according to claim 3, it is characterised in that: the interior outer tank connecting shaft (33) is top envelope
The hollow structure of mouth.
7. vertical low temperature gas tank according to claim 6, it is characterised in that: interior outer tank connecting shaft (33) length is
315mm。
8. vertical low temperature gas tank according to claim 1, it is characterised in that: interior lining ring (74) the small end axial width is
30mm, interior lining ring (74) radial thickness 50mm, wherein radial big end thickness 40mm, radial small end thickness 10mm.
9. vertical low temperature gas tank according to claim 3, it is characterised in that: the through-hole (39) is two.
10. vertical low temperature gas tank according to claim 9, it is characterised in that: the diameter of two through-holes (39) is
20mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055506.7A CN109058755A (en) | 2018-09-11 | 2018-09-11 | A kind of vertical low temperature gas tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055506.7A CN109058755A (en) | 2018-09-11 | 2018-09-11 | A kind of vertical low temperature gas tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109058755A true CN109058755A (en) | 2018-12-21 |
Family
ID=64761238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055506.7A Pending CN109058755A (en) | 2018-09-11 | 2018-09-11 | A kind of vertical low temperature gas tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109058755A (en) |
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