CN103075635A - Vertical low-temperature liquefied natural gas storage tank - Google Patents
Vertical low-temperature liquefied natural gas storage tank Download PDFInfo
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- CN103075635A CN103075635A CN201310052935XA CN201310052935A CN103075635A CN 103075635 A CN103075635 A CN 103075635A CN 201310052935X A CN201310052935X A CN 201310052935XA CN 201310052935 A CN201310052935 A CN 201310052935A CN 103075635 A CN103075635 A CN 103075635A
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Abstract
The invention provides a vertical low-temperature liquefied natural gas storage tank. The tank comprises an internal tank body and an external tank body which are sleeved together; a gap is formed between the internal tank and the external tank; the outside of the internal tank body is coated by a flexible aluminum foil heat preservation quilt; circular sectional material reinforcing ribs are uniformly welded at the external circumference of the external tank body; the axis of a low-temperature liquefied natural gas tank is vertical to the horizontal plane; and supporting legs are uniformly distributed at the lower end surface of the low-temperature liquefied natural gas tank. According to the invention, the reinforcing ribs on the external tank body are the circular sectional materials uniformly distributed and welded at the external circumference of the external tank body, the work of welding the circular sectional material reinforcing ribs at the external circumference of the external tank body is convenient; after welding, the welding burrs in the internal circumference of the external tank body can be conveniently removed; after the circular sectional material reinforcing ribs are welded at the external circumference of the external tank body, no welding junction is formed in the gap between the internal tank body and the external tank body; the vacuum degree of the gap between the internal tank body and the external tank body is not affected; and the circular sectional material reinforcing ribs are uniformly distributed and welded at the external circumference of the external tank body, so that the volume of the internal tank body can be increased.
Description
Technical field
The present invention relates to a kind of vertical low temperature liquefied natural gas (LNG) tank, particularly the stiffening rib of the outer tank body of a kind of vertical low temperature liquefied natural gas (LNG) tank.
Background technique
Rock gas is a kind of energy of good combination property.The natural gas volume of equal in quality is 600 times of LNG Liquefied natural gas volume.For convenient transportation and storage, make the low-temperature liquefaction rock gas to rock gas.Low-temperature liquefaction rock gas (LNG) is to adopt cryogenics, the low temperature liquid rock gas that makes with natural gas under certain pressure.
When storing on the ground the low-temperature liquefaction rock gas, can use the vertical low temperature liquefied natural gas (LNG) tank.
The vertical low temperature liquefied natural gas (LNG) tank has the low-temperature liquefaction natural gas tank, the low-temperature liquefaction natural gas tank has interior tank body and the outer tank body that is nested together, interior tank body and outer tank body have cylindrical drum, there is ellipsoidal head at the two ends of cylindrical shell, gapped between interior tank body and the outer tank body, the outside of interior tank body is coated with flexible aluminium foil thermal insulation quilt, be evenly equipped with the ring stiffening rib on the cylindrical shell of outer tank body, the axis of low-temperature liquefaction natural gas tank is perpendicular to horizontal plane, and the lower end surface of low-temperature liquefaction natural gas tank is evenly equipped with leg.
During use, it is that subzero 162 ℃ ~ subzero 50 ℃, pressure are the low-temperature liquefaction rock gases of 0.65Mpa ~ 1.59Mpa that the inner canister body is used for the splendid attire temperature, gap between interior tank body and the outer tank body will be evacuated, the gap of high vacuum and aluminium foil thermal insulation quilt make the LNG Liquefied natural gas in the low-temperature liquefaction natural gas tank be in adiabatic state, guarantee that the LNG Liquefied natural gas in the low-temperature liquefaction natural gas tank is in lower temperature.
Because outer tank body is in use under the environment of vacuum, the cylindrical shell of outer tank body will have stiffening rib.In the prior art, the stiffening rib on the outer tank body cylindrical shell is the uniform ring section bar that is welded on the cylindrical shell inner circumference, and the ring section bar can be angle steel.This vertical low temperature liquefied natural gas (LNG) tank has following deficiency:
1. ring section bar stiffening rib is the uniform inner circumference that is welded on outer tank body cylindrical shell, ring section bar stiffening rib is in the gap between interior tank body and outer tank body, ring section bar stiffening rib occupies the space of interior tank body and outer tank body gap, affects the increase of inner canister body bulk;
2. the outside inner circumference of tank body cylindrical shell welding ring section bar stiffening rib is because of narrow space, and weld job is very inconvenient, and after the welding, it is also very inconvenient that the inner circumference of tank body cylindrical shell is removed the welding burr outside;
3. after the inner circumference of tank body cylindrical shell has welded ring section bar stiffening rib outside, the inner circumference of outer tank body cylindrical shell has a large amount of weld bonds, have the pore of different shape in the weld bond, absorption has gas in the pore, the degree of vacuum of tank body and outer tank body gap in the existence impact of pore.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency, propose a kind of welding, flash removed easily, can increase the inner canister body bulk, not affect the vertical low temperature liquefied natural gas (LNG) tank of interior tank body and outer tank body gap degree of vacuum.
The present invention is achieved using the following method.
The vertical low temperature liquefied natural gas (LNG) tank has the low-temperature liquefaction natural gas tank, the low-temperature liquefaction natural gas tank has interior tank body and the outer tank body that is nested together, interior tank body and outer tank body have cylindrical drum, there is ellipsoidal head at the two ends of cylindrical shell, gapped between interior tank body and the outer tank body, the outside of interior tank body is coated with flexible aluminium foil thermal insulation quilt, be evenly equipped with the ring stiffening rib on the cylindrical shell of outer tank body, the axis of low-temperature liquefaction natural gas tank is perpendicular to horizontal plane, the lower end surface of low-temperature liquefaction natural gas tank is evenly equipped with leg, and the stiffening rib on the outer tank body cylindrical shell is the uniform ring section bar that is welded on outer tank body cylindrical shell excircle.
Stiffening rib on the outer tank body cylindrical shell of the present invention is the uniform ring section bar that is welded on outer tank body cylindrical shell excircle, the outside excircle of tank body cylindrical shell welding ring section bar stiffening rib is because the space is spacious, weld job is convenient, after the welding, it is also very convenient that the inner circumference of tank body cylindrical shell is removed the welding burr outside; Ring section bar stiffening rib be welded on the excircle of outer tank body cylindrical shell complete after, do not have weld bond in interior tank body and the outer tank body gap, do not affect the degree of vacuum of interior tank body and outer tank body gap; Ring section bar stiffening rib is the uniform excircle that is welded on outer tank body cylindrical shell, and the inner canister body bulk can increase.
Below in conjunction with accompanying drawing, the present invention is further described.
Description of drawings
Fig. 1 is that the master of a kind of vertical low temperature liquefied natural gas (LNG) tank of proposing according to invention scheme of the present invention looks schematic diagram;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is the A-A generalized section of Fig. 1;
Fig. 4 is the B-B generalized section of Fig. 3;
Fig. 5 ~ Figure 20 is Fig. 3 B-B generalized section of outer tank body cylindrical shell with ring section bar stiffening rib of different section.
Embodiment
Among Fig. 1 ~ Fig. 4, the vertical low temperature liquefied natural gas (LNG) tank has low-temperature liquefaction natural gas tank 1, the low-temperature liquefaction natural gas tank has interior tank body 2 and the outer tank body 3 that is nested together, interior tank body and outer tank body have cylindrical drum, there is ellipsoidal head at the two ends of cylindrical shell, between interior tank body and the outer tank body gapped 4, the outside of interior tank body is coated with flexible aluminium foil thermal insulation quilt 5, be evenly equipped with the ring stiffening rib on the cylindrical shell of outer tank body, the axis of low-temperature liquefaction natural gas tank is perpendicular to horizontal plane, the lower end surface of low-temperature liquefaction natural gas tank is evenly equipped with leg 6, and the stiffening rib on the outer tank body cylindrical shell is the uniform ring section bar 7 that is welded on outer tank body cylindrical shell excircle.
The ring section bar stiffening rib of above-mentioned outer tank body cylindrical shell excircle is ring semi-circular tube stiffening rib, and the stiffening rib ring section bar of outer tank body cylindrical shell excircle is that section is the semi-circle tubular section bar.The ring section bar also can be that section is the section bar of other shape.
Among Fig. 7 ~ Figure 22, the stiffening rib ring section bar of outer tank body cylindrical shell excircle is pipe 8, half rectangular pipe 9, round steel 10, angle steel 11, angle steel 12, angle steel 13, T steel 14, T steel 15, T steel 16, channel-section steel 17, channel-section steel 18, channel-section steel 19, I-steel 20, I-steel 21, square tube 22, Z-steel 23 successively.
Claims (2)
1. vertical low temperature liquefied natural gas (LNG) tank, include the low-temperature liquefaction natural gas tank, the low-temperature liquefaction natural gas tank has interior tank body and the outer tank body that is nested together, interior tank body and outer tank body have cylindrical drum, there is ellipsoidal head at the two ends of cylindrical shell, gapped between interior tank body and the outer tank body, the outside of interior tank body is coated with flexible aluminium foil thermal insulation quilt, be evenly equipped with the ring stiffening rib on the cylindrical shell of outer tank body, the axis of low-temperature liquefaction natural gas tank is perpendicular to horizontal plane, the lower end surface of low-temperature liquefaction natural gas tank is evenly equipped with leg, it is characterized in that: the stiffening rib on the outer tank body cylindrical shell is the uniform ring section bar that is welded on outer tank body cylindrical shell excircle.
2. by low-temperature liquefaction rock gas semi-mounted tank car claimed in claim 1, it is characterized in that: the ring section bar of the stiffening rib of described outer tank body cylindrical shell excircle is pipe, half rectangular pipe, round steel, angle steel, angle steel, angle steel, T steel, T steel, T steel, channel-section steel, channel-section steel, channel-section steel, I-steel, I-steel, square tube or Z-steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310052935XA CN103075635A (en) | 2013-02-19 | 2013-02-19 | Vertical low-temperature liquefied natural gas storage tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310052935XA CN103075635A (en) | 2013-02-19 | 2013-02-19 | Vertical low-temperature liquefied natural gas storage tank |
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| CN103075635A true CN103075635A (en) | 2013-05-01 |
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| CN201310052935XA Pending CN103075635A (en) | 2013-02-19 | 2013-02-19 | Vertical low-temperature liquefied natural gas storage tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383059A (en) * | 2013-07-05 | 2013-11-06 | 江苏久维压力容器制造有限公司 | Reinforcing rib type high-pressure gas cylinder |
| CN104453326A (en) * | 2014-11-28 | 2015-03-25 | 东北石油大学 | Large storage tank |
| CN110220105A (en) * | 2019-04-25 | 2019-09-10 | 范美云 | A kind of pressurized tank of high intensity |
Citations (7)
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| JPS502446B1 (en) * | 1972-07-17 | 1975-01-27 | ||
| JPH10274391A (en) * | 1997-03-31 | 1998-10-13 | Kobe Steel Ltd | Frp pressure vessel excellent in external pressure tightness |
| CN2472044Y (en) * | 2001-03-23 | 2002-01-16 | 何明亮 | Liquified gas steel cylinder |
| CN201162934Y (en) * | 2008-02-22 | 2008-12-10 | 戴小华 | Industrial gas steel cylinder filled with compressed natural gas |
| JP2010101356A (en) * | 2008-10-21 | 2010-05-06 | Taiyo Nippon Sanso Corp | Low-temperature liquefied gas storage tank |
| CN102494240A (en) * | 2011-11-11 | 2012-06-13 | 程成 | Improved structure of natural gas steel cylinder |
| CN203099309U (en) * | 2013-02-19 | 2013-07-31 | 铁岭黄海专用车制造有限公司 | Vertical cryogenic liquefied natural gas (LNG) storage tank |
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2013
- 2013-02-19 CN CN201310052935XA patent/CN103075635A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS502446B1 (en) * | 1972-07-17 | 1975-01-27 | ||
| JPH10274391A (en) * | 1997-03-31 | 1998-10-13 | Kobe Steel Ltd | Frp pressure vessel excellent in external pressure tightness |
| CN2472044Y (en) * | 2001-03-23 | 2002-01-16 | 何明亮 | Liquified gas steel cylinder |
| CN201162934Y (en) * | 2008-02-22 | 2008-12-10 | 戴小华 | Industrial gas steel cylinder filled with compressed natural gas |
| JP2010101356A (en) * | 2008-10-21 | 2010-05-06 | Taiyo Nippon Sanso Corp | Low-temperature liquefied gas storage tank |
| CN102494240A (en) * | 2011-11-11 | 2012-06-13 | 程成 | Improved structure of natural gas steel cylinder |
| CN203099309U (en) * | 2013-02-19 | 2013-07-31 | 铁岭黄海专用车制造有限公司 | Vertical cryogenic liquefied natural gas (LNG) storage tank |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383059A (en) * | 2013-07-05 | 2013-11-06 | 江苏久维压力容器制造有限公司 | Reinforcing rib type high-pressure gas cylinder |
| CN103383059B (en) * | 2013-07-05 | 2015-07-15 | 江苏久维压力容器制造有限公司 | Reinforcing rib type high-pressure gas cylinder |
| CN104453326A (en) * | 2014-11-28 | 2015-03-25 | 东北石油大学 | Large storage tank |
| CN110220105A (en) * | 2019-04-25 | 2019-09-10 | 范美云 | A kind of pressurized tank of high intensity |
| CN110220105B (en) * | 2019-04-25 | 2021-01-29 | 山东鑫瑞安装工程有限公司 | High-strength pressure tank |
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Application publication date: 20130501 |