CN202432233U - Low-temperature liquefied gas fuel storage tank for ship - Google Patents
Low-temperature liquefied gas fuel storage tank for ship Download PDFInfo
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- CN202432233U CN202432233U CN201120499912XU CN201120499912U CN202432233U CN 202432233 U CN202432233 U CN 202432233U CN 201120499912X U CN201120499912X U CN 201120499912XU CN 201120499912 U CN201120499912 U CN 201120499912U CN 202432233 U CN202432233 U CN 202432233U
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- dividing plate
- liquid
- storage tank
- liquefied gas
- inner bag
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Abstract
A low-temperature liquefied gas fuel storage tank for a ship comprises an inner container, an internal supercharging device, a support frame, a liquid inlet, a gas outlet, another support frame and a liquid level sensor. The inner container is arranged in a shell of the storage tank, the internal supercharging device is arranged on the inner side of one end of the inner container and used for vaporizing, the first support frame is arranged on the outer side of the end of the inner container and used for being connected with the shell of the storage tank, the liquid inlet, the gas outlet and the other support frame are arranged at the other end of the inner container, the other support frame is connected with the shell of the storage tank, the liquid level sensor is arranged in the inner container and connected with an external control system via a lead, and more than one radial partition plate is radially arranged in the inner container. The low-temperature liquefied gas fuel storage tank is simple in structure and easy to be manufactured. A gas cylinder is filled with LNG (liquefied natural gas) media and is energy-saving and environment-friendly; the internal structure of the gas cylinder is advanced and reasonable in design, and stability of safety sailing of the ship can be increased when the low-temperature liquefied gas fuel storage tank is used; and a seawater corrosion prevention measure is improved, and seawater corrosion prevention ability of the gas cylinder in offshore operation is increased.
Description
Technical field
The utility model relates to a kind of gaseous fuel storage tank.Particularly relate to a kind of LNG fuel boats and ships that are used on the rivers,lakes and seas adopting, can be anticorrosion and overcome free surface boats and ships jumpy and use the liquefied gas at low temp fuel reservoir.
Background technique
" energy crisis and environmental pollution " is two hang-ups of face of mankind nowadays.Especially oil product fuel such as the gasoline that highly relies on of modern humans's social activities, diesel oil, kerosene highlight especially: the one, to contain day by day exhaustedly, and exploitation and consumer cost is day by day high does not fall causes the immense pressure of economic environment; The 2nd, because of oil product fuel carbon content is high, the contribution of environmental pollution is outstanding, causes human settlement's immense pressure; The condensation products of the two is to cause one of inharmonious factor of current society, is the urgent demand of progress of human society and develop, utilize alternative clean energy resource.
All kinds of fishing boat recoverable amounts of China reach 1,060,000, account for 1/4th of World Ship total amount, account for 90% of China's boats and ships total amount, and China's fishing cruiser is more than 500,000, and surplus a year consumption oil plant reaches 800 ten thousand tons, the waste gas of discharge is serious is polluting atmosphere and rivers,lakes and seas.Energy-saving and environmental protection have become the theme that leads the global economy technical development; A kind of novel alternative energy source---LNG Liquefied natural gas (LNG) has got into the fishery vessel industry at present; For the fishing boat energy-saving and emission-reduction provide another road, the LNG cryogenic insulated cylinder arises at the historic moment as the power fuel reservoir vessel.
LNG is low temperature, minute-pressure, liquid fuel, is the partial heat characteristic and the liquid fuel concussion impact force that overcome low temp fuel, and it is main shape that structure of container is generally made with round, and auxilliary adiabatic means.The LNG container has obtained practical application as the power train in vehicle application fuel reserve container; And on the marine ship of inland river, use just is a beginning; This wherein faces a lot of actual problems that will solve; Two wherein relatively more outstanding problems, one is that free surface is to the stability of ship requirement in the ship's navigation, another is the requirement of moisture proof and seawater corrosion.
Ship's navigation stability is ship industry main design contents; The effect of wave all must be considered the influence of free surface to the hull center of gravity but any liquid object is placed back on the ship; Therefore; The consequent unstable phenomenon of boats and ships must be considered, defective, the change structure of product must be overcome from design, to guarantee shipping navigation safety property.Be used for marine product also the moist fog of considered saliferous to the erosion of material, the protective measure that therefore must adopt anticorrosion, mildew-resistant, protection against the tide, anti-chloride-based to corrode.
Summary of the invention
The utility model technical problem to be solved is, provides a kind of and can overcome the boats and ships that cause the boats and ships mass centre changing that boats and ships top ripple acutely rocks the liquid level center of gravity to cause because of wave and use the liquefied gas at low temp fuel reservoir.
The technological scheme that the utility model adopted is: a kind of boats and ships are used the liquefied gas at low temp fuel reservoir; Comprise: be arranged on inner bag in the storage tank frame, be arranged on the supporting frame that is connected with the storage tank frame of being used in the inboard interior supercharging device that is used to vaporize of inner bag one end and the outside; The supporting frame that is arranged on liquid entering hole, the air outlet of the inner bag the other end and is used for being connected with the storage tank frame; Be arranged on the liquid level sensor that is connected with external control system through lead in the inner bag, described inner bag inner radial is provided with the radially dividing plate more than 1.
Be provided with the radially dividing plate more than 2～5 in described inner bag inner radial.
The diameter of described radially dividing plate is identical with the internal diameter of described inner bag, and described radially dividing plate is provided with vent and liquid-through hole.
Described vent and liquid-through hole are the semicircle orifices that the periphery of radially dividing plate is provided with.
Described liquid-through hole radially dividing plate is provided with 3～5, and the size of each liquid-through hole area is a thousandth～three of radially dividing plate area.
Described vent radially dividing plate is provided with 1～2, and the size of each vent is that diameter is more than or equal to 50mm.
The inside of described inner bag also is provided with the axial dividing plate that intersects with described radially divider upright vertically, and described axial dividing plate is respectively arranged with second liquid-through hole more than 2 on two sides of the courage wall that closes on inner bag.
Second liquid-through hole that is provided with on the described axial dividing plate is the semicircle orifice that the periphery of dividing plate vertically is provided with, and the size of each second liquid-through hole area is a thousandth～three of axial dividing plate area.
The boats and ships of the utility model are used the liquefied gas at low temp fuel reservoir, and are simple in structure, are easy to make.The energy-saving and environmental protection of cylinder filling LNG medium; Gas cylinder internal structure advanced design, rationally in use can improve the stability of marine operation safety; Improve the seawater corrosion protective measures, the anti-seawater corrosion ability when having improved gas cylinder operation at sea.
Description of drawings
Fig. 1 is the utility model first embodiment's a structural representation;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation of the radially dividing plate of the utility model;
Fig. 4 is the utility model second embodiment's a structural representation;
Fig. 5 is the plan view of Fig. 4;
Fig. 6 is the utility model the 3rd embodiment's a structural representation;
Fig. 7 is the plan view of Fig. 6;
Fig. 8 is the utility model the 4th embodiment's a structural representation;
Fig. 9 is the plan view of Fig. 8.
Wherein:
1: inner bag 2: interior supercharging device
3: supporting frame 5: lead
4: the supporting frame that liquid entering hole, air outlet and being used for is connected with the storage tank frame
6: liquid level sensor 7: dividing plate radially
8: vent 9: liquid-through hole
10: axial 11: the second liquid-through holes of dividing plate
Embodiment
Below in conjunction with embodiment and accompanying drawing the boats and ships of the utility model are made detailed description with the liquefied gas at low temp fuel reservoir.
Like Fig. 1～shown in Figure 7; The boats and ships of the utility model are used the liquefied gas at low temp fuel reservoir; Comprise: be arranged on inner bag 1 in the storage tank frame, be arranged on the supporting frame 3 that is connected with the storage tank frame of being used in the inboard interior supercharging device 2 that is used to vaporize of inner bag 1 one ends and the outside; The supporting frame 4 that is arranged on liquid entering hole, the air outlet of inner bag 1 the other end and is used for being connected with the storage tank frame; Be arranged on the liquid level sensor 6 that is connected with external control system through lead 5 in the inner bag 1, described inner bag 1 inner radial is provided with being used to more than 1 and reduces the radially dividing plate 7 that free surface influences the hull center of gravity.Described radially dividing plate 7 is provided with more than 2～5 in the inner radial of inner bag 1, and present embodiment has provided and has been provided with 2～4 radially examples of dividing plate 7.The diameter of described radially dividing plate 7 is identical with the internal diameter of described inner bag 1.
As shown in Figure 3, described radially dividing plate 7 is provided with vent 8 and liquid-through hole 9, and described vent 8 is semicircle orifices of the periphery setting of radially dividing plate 7 with liquid-through hole 9.Wherein, described liquid-through hole 9 radially dividing plate 7 is provided with 3～5, and the size of each liquid-through hole 9 area is a thousandth～three of dividing plate 7 areas radially.General liquid-through hole 9 be round, and four holes are uniformly distributed with and are advisable on dividing plate 7 radially, in order to the moment jumpy of dispersion free surface.Described vent 8 radially dividing plate 7 is provided with 1～2, and the size of each vent 8 is semicircle orifices that diameter is not less than 50mm.
Like Fig. 8, shown in Figure 9; The inside of described inner bag 1 also is provided with the axial dividing plate 10 that intersects vertically with described radially dividing plate 7 vertically, and described axial dividing plate 10 is respectively arranged with second liquid-through hole 11 more than 2 on two sides of the courage wall that closes on inner bag 1.Second liquid-through hole 11 that is provided with on the described axial dividing plate 10 is semicircle orifices that the periphery of dividing plate 10 vertically is provided with, and the size of each second liquid-through hole, 11 area is a thousandth～three of axial dividing plate 10 areas.
The many more free surfaces of dividing plate change more little, and moment variations is more little.The general even number compartment that in single container, divides to both sides with the center line dividing plate is advisable.Minimumly in the single container should not be less than 2 compartments, between the storehouse and compartment to outer wall spacing should be less than 300mm.Take all factors into consideration the gas cylinder internal structure, three road dividing plates are set in the cylinder liner cross-sectional direction, clapboard spacing 375mm, the per pass dividing plate is provided with the liquid-through hole that four holes are uniformly distributed with, and the liquid-through hole aperture is the semicircle orifice of 20mm; The axial dividing plate of twice that between dividing plate, vertically is provided with along inner bag, dividing plate and inner bag two wall spacing 300mm, the per pass dividing plate is provided with four holes and is uniformly distributed with, and the aperture is not less than the semicircle orifice of 20mm.Free surface is divided into 6 five equilibriums, has reduced of the influence of free surface moment of inertia greatly vessel stability.
Through the realistic simulation test, gaseous fuel storage tank liquid level is 1/2 o'clock, and no gap test tilts 30 °, and the liquid transient flow is to an end; The gas cylinder power influence trend that leans forward that is hit, add dividing plate after, tilt 15 ° the time, liquid flows to an end fully, needs about 30 seconds times spent; Tilt 30 ° the time, liquid flows to an end fully, needs about 36 seconds times spent, tilts 45 ° the time, and liquid flows to an end fully; Need about 43 seconds times spent, three dividing plate tests, impact force is all not obvious, does not have the trend that leans forward.
When considering design proposal, adopted three kinds of schemes, in inner bag, added twice dividing plate, three road dividing plates and four road dividing plates respectively, all tested one by one, test result is following:
Add liquid inclination flow velocity test data: S behind the dividing plate
| The angle of inclination | The twice dividing plate | Three road dividing plates | Four road dividing plates |
| 15° | 26 | 30 | 35 |
| 30° | 32 | 36 | 40 |
| 45° | 37 | 43 | 46 |
Above-mentioned experiment shows, is making much of: adopted wavelength 60m is arranged, and after rolling period waited the theory and sea situation of Ship Design in 9 seconds, the present invention of proposition was effectively, practical, be useful to guaranteeing that safety of ship goes.
Claims (8)
1. boats and ships are used the liquefied gas at low temp fuel reservoir; Comprise: be arranged on inner bag (1) in the storage tank frame, be arranged on the supporting frame (3) that is connected with the storage tank frame of being used in the inboard interior supercharging device (2) that is used to vaporize of inner bag (1) one end and the outside; The supporting frame (4) that is arranged on liquid entering hole, the air outlet of inner bag (1) the other end and is used for being connected with the storage tank frame; Be arranged on the liquid level sensor (6) that is connected with external control system through lead (5) in the inner bag (1); It is characterized in that described inner bag (1) inner radial is provided with the radially dividing plate (7) more than 1.
2. boats and ships according to claim 1 are used the liquefied gas at low temp fuel reservoir, it is characterized in that, are provided with the radially dividing plate (7) more than 2～5 in described inner bag (1) inner radial.
3. boats and ships according to claim 1 are used the liquefied gas at low temp fuel reservoir; It is characterized in that; The diameter of described radially dividing plate (7) is identical with the internal diameter of described inner bag (1), and described radially dividing plate (7) is provided with vent (8) and liquid-through hole (9).
4. boats and ships according to claim 3 are used the liquefied gas at low temp fuel reservoir, it is characterized in that, described vent (8) and liquid-through hole (9) are the semicircle orifices that the periphery of radially dividing plate (7) is provided with.
5. boats and ships according to claim 3 are used the liquefied gas at low temp fuel reservoir; It is characterized in that; Described liquid-through hole (9) radially dividing plate (7) is provided with 3～5, and the size of each liquid-through hole (9) area is a thousandth～three of dividing plate (7) area radially.
6. boats and ships according to claim 3 are used the liquefied gas at low temp fuel reservoir, it is characterized in that, described vent (8) radially dividing plate (7) is provided with 1～2, and the size of each vent (8) is that diameter is more than or equal to 50mm.
7. use the liquefied gas at low temp fuel reservoir according to each described boats and ships in the claim 1～6; It is characterized in that; The inside of described inner bag (1) also is provided with the axial dividing plate (10) that intersects vertically with described radially dividing plate (7) vertically, and described axial dividing plate (10) is respectively arranged with second liquid-through hole (11) more than 2 on two sides of the courage wall that closes on inner bag (1).
8. boats and ships according to claim 7 are used the liquefied gas at low temp fuel reservoir; It is characterized in that; Described axial dividing plate (10) is gone up the semicircle orifice that second liquid-through hole (11) that is provided with is the periphery setting of dividing plate (10) vertically, and the size of each second liquid-through hole (11) area is a thousandth～three of axial dividing plate (10) area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120499912XU CN202432233U (en) | 2011-12-05 | 2011-12-05 | Low-temperature liquefied gas fuel storage tank for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120499912XU CN202432233U (en) | 2011-12-05 | 2011-12-05 | Low-temperature liquefied gas fuel storage tank for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202432233U true CN202432233U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120499912XU Expired - Fee Related CN202432233U (en) | 2011-12-05 | 2011-12-05 | Low-temperature liquefied gas fuel storage tank for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202432233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570663A (en) * | 2016-02-19 | 2016-05-11 | 新奥科技发展有限公司 | LNG (Liquefied Natural Gas) storage tank assembly and LNG temperature control method |
| CN108027108A (en) * | 2015-09-28 | 2018-05-11 | 瓦锡兰芬兰有限公司 | The fuel tank arrangement of marine ships |
-
2011
- 2011-12-05 CN CN201120499912XU patent/CN202432233U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108027108A (en) * | 2015-09-28 | 2018-05-11 | 瓦锡兰芬兰有限公司 | The fuel tank arrangement of marine ships |
| CN108027108B (en) * | 2015-09-28 | 2019-09-10 | 瓦锡兰芬兰有限公司 | The fuel tank arrangement of marine ships |
| CN105570663A (en) * | 2016-02-19 | 2016-05-11 | 新奥科技发展有限公司 | LNG (Liquefied Natural Gas) storage tank assembly and LNG temperature control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120912 Termination date: 20151205 |
|
| EXPY | Termination of patent right or utility model |