CN104121472A - A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank - Google Patents
A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank Download PDFInfo
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- CN104121472A CN104121472A CN201410330786.3A CN201410330786A CN104121472A CN 104121472 A CN104121472 A CN 104121472A CN 201410330786 A CN201410330786 A CN 201410330786A CN 104121472 A CN104121472 A CN 104121472A
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- tank
- outer tank
- inner canister
- storage tank
- gas storage
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Abstract
A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank is disclosed. The storage tank comprises a tank body (1) and a framework (2), wherein the tank body (1) comprises an inner tank (3), an outer tank (4), a high-vacuum heat-insulating layer (5) between the inner tank (3) and the outer tank (4), and connecting shafts (6) connecting the inner tank to the outer tank; the inner tank (3) is an internal pressure storage tank; the outer tank (4) is a vacuum storage tank; the high-vacuum heat-insulating layer (5) between the inner tank (3) and the outer tank (4) is filled with powder for heat insulation; the connecting shafts (6) between the inner tank (3) and the outer tank (4) connect the inner wall of the top of the outer tank (4) to the outer wall of the top of the inner tank (3); the gap between the top of the inner tank (3) and the top of the outer tank (4) is larger than gaps between other parts; the framework (2) relates to four supporting seats welded to the surface of the tank body; and the four supporting seats are configured to be a circular seat integrated by connection. The storage tank has advantages of the thin heat-insulating layer, excellent heat insulating performance and large liquid storage volume.
Description
Technical field
The present invention relates to a kind of liquefied gas at low temp warehousing and transportation facilities, particularly the adiabatic low-temperature liquefied gas storage tank of a kind of suspended ceiling dual-layer high vacuum.
Background technique
In cryogenic technique field, liquefied gas at low temp refers to the gas that-160 DEG C of following liquid forms exist, as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrogen, liquid methane etc.Due to and so on the liquid volume ratio gaseous state of gas dwindle 600 times of left and right, therefore often with liquid mode accumulating.The equipment of transfer of cryogenic liquid gas comprises tank car and tank body etc., tank body is double layer construction, between inner bag and shell, it is vacuum layer, between inner bag and shell, connect by supporting structure, due to the requirement of transport law, warehousing and transportation facilities (tank car and tank body etc.) has maximum boundary dimension restriction, in the situation that having limited maximum boundary dimension, warehousing and transportation facilities (tank car and tank body etc.) has maximum boundary dimension restriction, in the situation that having limited maximum boundary dimension, the actual volume of the medium that warehousing and transportation facilities (tank car and tank body etc.) can load and transport just depends on the thickness of vacuum layer.
Conventionally be wound around thermal-protective material at the outer surface of tank body inner bag, the vacuum sandwich pumping high vacuum that comprises multilayer insulation material by handle forms heat insulation layer, and vacuum sandwich is thinner, and it is more that tank body loads conveying medium; But heat insulation layer is thinner, connect the more difficult layout of supporting structure of inner bag and shell, heat insulation layer is thinner, condition of high vacuum degree is lower, the heat transfer of inner bag and shell is more, and the heat loss of liquefied gas at low temp is larger, in ZL002469960 and ZL01272605.2, consider the layout of radial support in vacuum layer, the vacuum layer thickness between shell and inner bag is also had in 100mm left and right.The inner supporting structure of inner bag and shell should bear the power producing due to liquid load, storage tank weight and respective impact speed, also must reduce as far as possible the caused leaking heat of inner supporting structure, so inner supporting structure is the key of low-temperature storage tank design.
Based on the above, a kind of to have the exploitation of the very high storage tank of larger liquefied gas at low temp bulk of reservoir rock, effect of heat insulation and shock resistance level necessary.
Summary of the invention
The object of the present invention is to provide the adiabatic low-temperature liquefied gas storage tank of a kind of suspended ceiling dual-layer high vacuum, this tank for liquefied gas has increased liquefied gas at low temp storage volumes, and effect of heat insulation and shock resistance level fine.
The invention provides the adiabatic low-temperature liquefied gas storage tank of a kind of suspended ceiling dual-layer high vacuum, described storage tank is vertical cylinder structure, wherein, comprising:
Tank body 1, formed by the coupling shaft 6 between the high-vacuum insulation layer 5 between inner canister 3, outer tank 4, inner canister 3 and outer tank 4 and connection inner canister 3 and outer tank 4, described inner canister 3 is interior pressure storage tank, described outer tank 4 is vacuum storage tank, vacuum heat-insulating layer 5 powder filler thermal insulation between inner canister 3 and outer tank 4, coupling shaft 6 between described inner canister 4 and outer tank 5 is connected to by the top inner wall of described outer tank 4 in the top exterior walls of described inner canister 3, and the gap between described inner canister 3 and outer tank 4 tops is greater than the gap between other positions.
Framework 2, it is four supporting type bearings that are welded on described tank surface, described four supporting type bearings are set to be connected to the ring support of one.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the distance between described outer tank 3 and inner canister 4 tops is not more than 8cm, and the distance between other positions is 3cm.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the adiabatic powder that fill in the space between described outer tank 3 and described inner canister 4 is pearlife.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the coupling shaft number between described inner canister 4 and the outer tank 4 of setting is 4, evenly be arranged between the top exterior walls of described inner canister 3 and the top inner wall of described outer tank 4, and four coupling shafts are square and arrange.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the coupling shaft 6 between described inner canister 3 and outer tank 4:
Supporting disk, is disc type structure, is welded on the internal surface of described outer tank 4 and the outer surface of described inner canister 3;
Retaining ring, for the protection of described supporting disk, described retaining ring is distributed in the both sides of described supporting disk, is provided with the gap of automatic adjusting between described retaining ring and described supporting disk;
Locking device, is fixed on described retaining ring one side;
Coupling shaft, two ends are fixed on described supporting disk;
The first cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described outer tank 4 places;
The second cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described inner canister 3 places.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the top of described outer tank 4 is provided with stiffening ring.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, the material that described coupling shaft 6 adopts is the glass fibre reinforced plastics that stress performance is good and thermal conductivity is little.
Preferably, the adiabatic low-temperature liquefied gas storage tank of described suspended ceiling dual-layer high vacuum, wherein, described tank body 1 is welded with stiffening ring with the described inner tank wall of described framework 2 joints.
The adiabatic low-temperature liquefied gas storage tank of a kind of suspended ceiling dual-layer high vacuum provided by the invention, its beneficial effect comprises: 1) setting of the gap between outer tank and inner canister is less, and liquefied gas at low temp bulk of reservoir rock is increased; 2) material that the coupling shaft between outer tank and inner canister adopts is that stress performance is good and thermal conductivity is little, effectively reduces the heat loss of storage tank, has strengthened effect of heat insulation, and shock resistance level is fine; 3) outer tank and inner canister are connected by suspention coupling shaft, and gap filling filler between it has strengthened the stability of storage tank.
Brief description of the drawings
Fig. 1 is the adiabatic low-temperature liquefied gas storage tank schematic diagram of suspended ceiling dual-layer high vacuum of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail, to make those skilled in the art can implement according to this with reference to specification word.
As shown in Figure 1, the invention provides the adiabatic low-temperature liquefied gas storage tank of a kind of suspended ceiling dual-layer high vacuum, comprise: tank body 1, by inner canister 3, outer tank 4, high-vacuum insulation layer 5 between inner canister 3 and outer tank 4 and the coupling shaft 6 connecting between inner canister 3 and outer tank 4 form, described inner canister 3 is interior pressure storage tank, described outer tank 4 is vacuum storage tank, vacuum heat-insulating layer 5 powder filler thermal insulation between inner canister 3 and outer tank 4, coupling shaft 6 between described inner canister 3 and outer tank 4 is connected to by the top inner wall of described outer tank 4 in the top exterior walls of described inner canister 3, gap between described inner canister 3 and outer tank 4 tops is greater than the gap between other positions.
Framework 2, it is four supporting type bearings that are welded on described tank body 1 surface, described four supporting type bearings are set to be connected to the ring support of one.Framework 2 is designed to ring support structure, has increased the field of load of tank body, thereby avoided tank body to cause tank body distortion because local load is excessive.
Coupling shaft number between described inner canister 3 and the outer tank 4 arranging is 4, be evenly arranged between the top exterior walls of described inner canister 3 and the top inner wall of described outer tank 4, and four coupling shafts is square and arranges.The design of multiple coupling shafts has increased the field of load between outer tank 3 and inner canister 4, and coupling shaft 6 structures all adopt thermoinsulation material to make, and than little at the heat loss probability of outer tank 4 and inner canister 3 end socket places installation coupling shaft 6 structures.
Coupling shaft 6 between described inner canister 3 and outer tank 4:
Supporting disk, is disc type structure, is welded on the internal surface of described outer tank 4 and the outer surface of described inner canister 3;
Retaining ring, for the protection of described supporting disk, described retaining ring is distributed in the both sides of described supporting disk, is provided with the gap of automatic adjusting between described retaining ring and described supporting disk;
Locking device, is fixed on described retaining ring one side;
Coupling shaft, two ends are fixed on described supporting disk;
The first cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described outer tank 4 places;
The second cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described inner canister 3 places.
The adiabatic powder that fill in space between described outer tank 4 and described inner canister 3 is pearlife, for stopping the exchange heat probability between outer tank 4 and inner canister 3, reduces heat loss.
The material that described coupling shaft 6 adopts is the glass fibre reinforced plastics that stress performance is good and thermal conductivity is little.
The top of described outer tank 4 is provided with stiffening ring, and described tank body 1 is welded with stiffening ring with described tank body 1 inwall of described framework 2 joints.Increase the thickness of tank body, thereby avoided tank body due to the stressed excessive tank body distortion that causes.
Specific embodiment
The invention provides a kind of high vacuum heat insulation low temperature liquefied gas storage tank, comprise,
Tank body 1, formed by the coupling shaft 6 between the high-vacuum insulation layer 5 between inner canister 3, outer tank 4, inner canister 3 and outer tank 4 and connection inner canister 3 and outer tank 4, described inner canister 3 is interior pressure storage tank, described outer tank 4 is vacuum storage tank, the adiabatic powder that fill in space between described outer tank 4 and described inner canister 3 is pearlife, has effectively reduced the heat loss rate of high vacuum heat insulation low temperature liquefied gas storage tank.
Coupling shaft 6 between described inner canister 3 and outer tank 4 is connected to by the top inner wall of described outer tank 4 in the top exterior walls of described inner canister 3, and the gap between described inner canister 3 and outer tank 4 tops is greater than the gap between other positions.Wherein, the coupling shaft number between described inner canister 3 and the outer tank 4 of setting is 4, be evenly arranged between the top exterior walls of described inner canister 3 and the top inner wall of described outer tank 4, and four coupling shafts is square and arranges.
Coupling shaft between described inner canister 3 and outer tank 4:
Supporting disk, is disc type structure, is welded on the internal surface of described outer tank 4 and the outer surface of described inner canister 3;
Retaining ring, for the protection of described supporting disk, described retaining ring is distributed in the both sides of described supporting disk, is provided with the gap of automatic adjusting between described retaining ring and described supporting disk;
Locking device, is fixed on described retaining ring one side;
Coupling shaft, two ends are fixed on described supporting disk;
The first cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described outer tank 4 places;
The second cushion block, is locked between the supporting disk and the jut of described coupling shaft 6 at described inner canister 3 places.
The material that described coupling shaft 6 adopts is the glass fibre reinforced plastics that stress performance is good and thermal conductivity is little.
Framework 2, it is four supporting type bearings that are welded on described tank body 1 lower surface, described four supporting type bearings are set to be connected to the ring support of one.And be welded with stiffening ring at described tank body 1 and described tank body 1 inwall of described framework 2 joints.
Although embodiment of the present invention are open as above, but it is not restricted to listed utilization in specification and mode of execution, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the legend of describing.
Claims (8)
1. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum, described storage tank is vertical cylinder structure, it is characterized in that, comprising:
Tank body (1), by inner canister (3), outer tank (4), high-vacuum insulation layer (5) between inner canister (3) and outer tank (4) and the coupling shaft (6) connecting between inner canister and outer tank form, described inner canister (3) is interior pressure storage tank, described outer tank (4) is vacuum storage tank, vacuum heat-insulating layer (5) powder filler thermal insulation between inner canister (3) and outer tank (4), coupling shaft (6) between described inner canister (3) and outer tank (4) is connected in the top exterior walls of described inner canister (3) by the top inner wall of described outer tank (4), gap between described inner canister (3) and outer tank (4) top is greater than the gap between other positions,
Framework (2), it is four supporting type bearings that are welded on described tank surface, described four supporting type bearings are set to be connected to the ring support of one.
2. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 1, is characterized in that, the distance between described outer tank (4) and inner canister (3) top is not more than 8cm, and the distance between other positions is 3cm.
3. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 2, is characterized in that, the adiabatic powder that fill in the space between described outer tank (4) and described inner canister (3) is pearlife.
4. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 1, it is characterized in that, coupling shaft number between described inner canister (3) and the outer tank (4) arranging is 4, evenly be arranged between the top exterior walls of described inner canister (3) and the top inner wall of described outer tank (4), and four coupling shafts are square and arrange.
5. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 4, is characterized in that the coupling shaft (5) between described inner canister (3) and outer tank (4):
Supporting disk, is disc type structure, is welded on the internal surface of described outer tank (4) and the outer surface of described inner canister (3);
Retaining ring, for the protection of described supporting disk, described retaining ring is distributed in the both sides of described supporting disk, is provided with the gap of automatic adjusting between described retaining ring and described supporting disk;
Locking device, is fixed on described retaining ring one side;
Coupling shaft, two ends are fixed on described supporting disk;
The first cushion block, is locked between the supporting disk and the jut of described coupling shaft (6) that described outer tank (4) locates;
The second cushion block, is locked between the supporting disk and the jut of described coupling shaft (6) that described inner canister (3) locates.
6. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 1, is characterized in that, the top of described outer tank (4) is provided with stiffening ring.
7. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 5, is characterized in that, the material that described coupling shaft (6) adopts is the glass fibre reinforced plastics that stress performance is good and thermal conductivity is little.
8. the adiabatic low-temperature liquefied gas storage tank of suspended ceiling dual-layer high vacuum as claimed in claim 1, is characterized in that, described tank body (1) is welded with stiffening ring with the described inner tank wall of described framework (2) joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330786.3A CN104121472A (en) | 2014-07-11 | 2014-07-11 | A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410330786.3A CN104121472A (en) | 2014-07-11 | 2014-07-11 | A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank |
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| CN104121472A true CN104121472A (en) | 2014-10-29 |
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| CN201410330786.3A Pending CN104121472A (en) | 2014-07-11 | 2014-07-11 | A suspended-ceiling type double-layer high-vacuum heat-insulating low-temperature liquified gas storage tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678535A (en) * | 2015-11-10 | 2017-05-17 | 空中客车Ds有限责任公司 | Tank |
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| CN103162085A (en) * | 2013-03-19 | 2013-06-19 | 中国海洋石油总公司 | Self-supporting type LNG (Liquefied Natural Gas) storage tank |
| CN203431478U (en) * | 2013-08-09 | 2014-02-12 | 荆门宏图特种飞行器制造有限公司 | Low-temperature liquid storage tank |
| DE202014101567U1 (en) * | 2013-11-29 | 2014-04-29 | China National Offshore Oil Corp. | Steel cable tension control device for the pneumatic lifting of the dome of liquefied gas tanks |
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2014
- 2014-07-11 CN CN201410330786.3A patent/CN104121472A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1683816A (en) * | 2004-04-15 | 2005-10-19 | 中国国际海运集装箱(集团)股份有限公司 | High vacuum heat insulation low temperature liquefied gas storage tank |
| WO2011115620A1 (en) * | 2010-03-17 | 2011-09-22 | Air Products And Chemicals, Inc. | Cryogenic storage tank |
| CN103133863A (en) * | 2013-01-16 | 2013-06-05 | 中国五环工程有限公司 | Low-temperature liquefied gas full containing pot structure |
| CN103162085A (en) * | 2013-03-19 | 2013-06-19 | 中国海洋石油总公司 | Self-supporting type LNG (Liquefied Natural Gas) storage tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106678535A (en) * | 2015-11-10 | 2017-05-17 | 空中客车Ds有限责任公司 | Tank |
| CN106678535B (en) * | 2015-11-10 | 2020-01-03 | 空中客车Ds有限责任公司 | Pot for storing food |
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Application publication date: 20141029 |
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