CN109854945A - A kind of prismatic LNG flow container device of low-temperature atmosphere-pressure - Google Patents
A kind of prismatic LNG flow container device of low-temperature atmosphere-pressure Download PDFInfo
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- CN109854945A CN109854945A CN201811524702.4A CN201811524702A CN109854945A CN 109854945 A CN109854945 A CN 109854945A CN 201811524702 A CN201811524702 A CN 201811524702A CN 109854945 A CN109854945 A CN 109854945A
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Abstract
The invention discloses a kind of prismatic LNG flow container devices of low-temperature atmosphere-pressure, including the first liquid tank tank, the second liquid tank tank and third liquid tank tank；The first liquid tank tank, the second liquid tank tank and third liquid tank tank are prism-type IMO independence A type liquid tank tank；The first liquid tank tank, the second liquid tank tank and third liquid tank tank pass through liquid container saddle seat respectively and are fixed on LNG ship oceangoing ship；The first liquid tank tank, the second liquid tank tank and its central area of third liquid tank tank are respectively arranged with rib type gas chamber；The prismatic LNG flow container device of low-temperature atmosphere-pressure of the invention, by repeatedly replacing, so that handling goods more safety and stability；And the design of the prismatic flow container of use can effectively improve the utilization rate of cabin and flat deck arrangement is more conducive to make the mounting arrangements of the following hull upper module, builds especially suitable for middle-size and small-size FLNG and FSRU.
Description
Technical field
The present invention relates to a kind of prismatic LNG flow container devices of low-temperature atmosphere-pressure, belong to LNG flow container technical field.
Background technique
Existing LNG fluid reservoir mainly includes spherical tank type storage tank and diamond shape storage tank；Existing spherical tank type storage tank is self-supporting
Type structure building, it undertakes the weight of itself and is applied in the structure of itself, and self load bearing amount is big, influences spherical tank type storage tank
Service life；And diamond shape storage tank has all been transferred in Ship Structure by hull support, all weight and load, increases ship
The load of body increases the friction between diamond shape storage tank and hull, influences its service life；The present invention is using prismatic flow container
Design can effectively improve the utilization rate of cabin and flat deck arrangement is more conducive to make the installation cloth of the following hull upper module
It sets, so that LNG ship oceangoing ship has more efficiently ship cabin utilization rate and highly efficient hull lines design, especially suitable for area
Domain and coastal LNG transport.The ship can cope with operation in the world, can also be carried out one cargo reload or area
Domain transport；And under identical ship type size, the LNG ship volume using freestanding IMOC type LNG flow container system only has 30,
000 cubic metre, and 45,000 cubic metre that the volume of the LNG ship of such prismatic flow container flow container system of use is reachable, volume mentions
Height about 50%, can be used for loading other, such as LPG, ethylene, the cargo types such as ethane.
Summary of the invention
To solve the above problems, the invention proposes a kind of prismatic LNG flow container devices of low-temperature atmosphere-pressure, by repeatedly setting
It changes, so that handling goods more safety and stability；And the utilization rate of cabin can be effectively improved using the design of prismatic flow container and put down
Smooth deck arrangement is more conducive to make the mounting arrangements of the following hull upper module, builds especially suitable for middle-size and small-size FLNG and FSRU
It makes.
The prismatic LNG flow container device of low-temperature atmosphere-pressure of the invention, including the first liquid tank tank, the second liquid tank tank and third liquid
Cabin tank；The first liquid tank tank, the second liquid tank tank and third liquid tank tank are prism-type IMO independence A type liquid tank tank；Described first
Liquid tank tank, the second liquid tank tank and third liquid tank tank pass through liquid container saddle seat respectively and are fixed on LNG ship oceangoing ship；The first liquid tank tank,
Second liquid tank tank and its central area of third liquid tank tank are respectively arranged with rib type gas chamber；The first liquid tank tank includes tank body, and
The swash bulkhead being set on the inside of tank body, and be installed on the cargo handling pipeline of tank interior, and with cargo handling piping connection
Two goods pump and atomizing pump, and multiple nozzles being respectively arranged on cargo handling pipeline；Thunder is installed between the two goods pumps
Up to the liquid level and sensor for measuring temperature of type；The tank body center is equipped with snorkel；The snorkel and rib type gas chamber connect
It connects；The tank body side is equipped with inert gas input pipe；The goods pump, atomizing pump, liquid level and sensor for measuring temperature difference
It is electrically connected with the instrument cabinet for being installed on tank body dome；Described its tank interior structure of third liquid tank tank and first liquid tank tank its tank
Body internal structure is identical；Described its tank interior structure of second liquid tank tank and its tank interior structure of the first liquid tank tank are axisymmetricly
Setting；Its tank body of the second liquid tank tank and third liquid tank tank its tank interior have also been independently arranged fuel pump；The fuel pump
With cargo handling piping connection, and fuel pump and instrument cabinet are electrically connected.
Further, be additionally provided in the tank body for can reach the bilge into ladder and facilitate disengaging ladder access and
Platform.
As preferred embodiment, the first liquid tank tank, the second liquid tank tank and third liquid tank tank are 304L stainless
Steel material.
Further, the first liquid tank tank its having a size of 42.0*25.0*15.8 meters, weight 726T, volume is
14000 cubic metres.
Further, the second liquid tank tank its having a size of 43.6*25.0*15.8 meters, weight 837T, volume is
16800 cubic metres.
Further, the third liquid tank tank its having a size of 41.2*25.0*15.8 meters, weight 823T, volume is
15900 cubic metres.
Further, it is provided on each rib type gas chamber for the connector with cargo handling and into and out of entering hole.
Further, use is respectively arranged with outside the first liquid tank tank, the second liquid tank tank and third liquid tank tank its tank body
In the lifting lug of lifting.
Compared with prior art, the prismatic LNG flow container device of low-temperature atmosphere-pressure of the invention is first after off docking by the present invention
Nitrogen purge insulating space is first used, normal pressure in insulating space is kept, guarantees that shape of liquid tank, the nitrogen filled can go out in liquid tank
Stock object plays a protective role when revealing, and avoiding liquid goods from contacting with air sets off an explosion；Later, connected with inert gas input pipe
The inert gas generator connect generates low temperature dry air for the air in displacement tank body fluid cabin and pipeline, drops to tank body liquid tank
Moisture cryogenic temperature condensation damage liquid tank and equipment are avoided while warm；Then, inert gas (nitrogen is generated by inert gas generator
And carbon dioxide), dry air in displacement tank body fluid cabin and pipeline further cools down to tank body liquid tank while preventing LNG
It contacts and explodes with oxygen；Then, with the gas in LNG steam replacement piping and tank body liquid tank, for freighting；By multiple
Displacement, so that handling goods more safety and stability；And using prismatic flow container design can effectively improve cabin utilization rate and
Flat deck arrangement is more conducive to make the mounting arrangements of the following hull upper module, builds especially suitable for middle-size and small-size FLNG and FSRU
It makes；Under identical ship type size, the LNG ship volume using freestanding IMOC type LNG flow container system only has 30,000 cube
Rice, and 45,000 cubic metre that the volume of the LNG ship of such prismatic flow container flow container system of use is reachable, volume raising are about
50%, it can be used for loading other, such as LPG, ethylene, the cargo types such as ethane.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first liquid tank tank overlooking structure diagram of the invention.
Fig. 2 is the second liquid tank tank overlooking structure diagram of the invention.
Fig. 3 is third liquid tank tank overlooking structure diagram of the invention.
Fig. 4 is its tank interior structural schematic diagram of third liquid tank tank of the invention.
Fig. 5 is its tank body hoisting structure schematic diagram of the second liquid tank tank of the invention.
Each component mark in attached drawing are as follows: 1- the first liquid tank tank, 2- the second liquid tank tank, 3- third liquid tank tank, 4- rib type gas chamber,
5- tank body, 6- cargo handling pipeline, 7- goods pump, 8- atomizing pump, 10- liquid level and sensor for measuring temperature, 11- snorkel, 12- are lazy
Property gas inlet pipe, 13- instrument cabinet, 14- fuel pump, 15- enter ladder and facilitate disengaging ladder access peace, 16- lifting lug.
Specific embodiment
The prismatic LNG flow container device of low-temperature atmosphere-pressure as depicted in figs. 1 and 2, including the first liquid tank tank 1, the second liquid tank
Tank 2 and third liquid tank tank 3；The first liquid tank tank 1, the second liquid tank tank 2 and third liquid tank tank 3 are prism-type IMO independence A type
Liquid tank tank；The first liquid tank tank 1, the second liquid tank tank 2 and third liquid tank tank 3 are fixed on LNG ship oceangoing ship by liquid container saddle seat respectively
On；The first liquid tank tank 1, the second liquid tank tank 2 and 3 its central area of third liquid tank tank are respectively arranged with rib type gas chamber 4；It is described
First liquid tank tank 1 includes tank body 5, and is set to the swash bulkhead (not shown) of 5 inside of tank body, and be installed on inside tank body 5
Cargo handling pipeline 6, and the two goods pump 7 and atomizing pump 8 that are connect with cargo handling pipeline 6, and it is respectively arranged in cargo handling pipe
Multiple nozzles (not shown) on road 6；The liquid level and sensor for measuring temperature of radar type are installed between the two goods pumps 7
10；5 center of tank body is equipped with snorkel 11；The snorkel 11 is connect with rib type gas chamber 4；5 side of the tank body installation
There is inert gas input pipe 12；Goods pump 7, atomizing pump 8, liquid level and sensor for measuring temperature 10 respectively be installed on tank body 5
The instrument cabinet 13 of dome is electrically connected；Described its tank interior structure of third liquid tank tank 3 and its tank interior knot of the first liquid tank tank 1
Structure is identical；Its tank interior structure is axisymmetricly arranged described its tank interior structure of second liquid tank tank 2 with the first liquid tank tank 1；
Described second liquid tank tank, 2 its tank body and 3 its tank interior of third liquid tank tank have also been independently arranged fuel pump 14；The fuel pump 14
It is connect with cargo handling pipeline 6, and fuel pump 14 and instrument cabinet 13 are electrically connected.
Be additionally provided in the tank body 5 for can reach the bilge into ladder and facilitate the ladder access and platform 15 of disengaging.
The first liquid tank tank 1, the second liquid tank tank 2 and third liquid tank tank 3 are 304L stainless steel material.
The first liquid tank tank 1 its having a size of 42.0*25.0*15.8 meters, weight 726T, volume is 14000 vertical
Square rice.
The second liquid tank tank 2 its having a size of 43.6*25.0*15.8 meters, weight 837T, volume is 16800 vertical
Square rice.
The third liquid tank tank 3 its having a size of 41.2*25.0*15.8 meters, weight 823T, volume is 15900 vertical
Square rice.
It is provided on each rib type gas chamber 4 for the connector with cargo handling and into and out of entering hole.
It is separately provided for lifting outside 3 its tank body of the first liquid tank tank 1, the second liquid tank tank and 2 third liquid tank tank
Lifting lug 16.
The prismatic LNG flow container device of low-temperature atmosphere-pressure of the invention, when installation, liquid tank tank hung using gantry crane send to
On corresponding liquid container saddle seat on LNG ship oceangoing ship, nitrogen purge insulating space is used after off docking first, keeps positive pressure in insulating space
Power guarantees that shape of liquid tank, the nitrogen filled can play a protective role when cargo leakage occurs in liquid tank, avoids liquid goods and air
Contact sets off an explosion；Later, low temperature dry air is generated with the inert gas generator connecting with inert gas input pipe to be used for
Air in displacement tank body fluid cabin and pipeline avoids moisture cryogenic temperature condensation damage liquid tank and sets while cooling to tank body liquid tank
It is standby；Then, inert gas (nitrogen and carbon dioxide) is generated by inert gas generator, it is dry in displacement tank body fluid cabin and pipeline
Air, further cool down to tank body liquid tank while preventing from LNG from contacting with oxygen exploding；Then, it is replaced with LNG steam
Gas in pipeline and tank body liquid tank, for freighting；When loading, ship-to-shore pump work, and it is gradually increased loading rate, when pressure reaches
When to 5KPa, open First goods pump, second goods pump opened when pressure increases to 8KPa, maintain lock pressure 8~12KPa it
Between；When liquid level reaches the 90% of volume of compartment in cabin, into the trim stage, stops goods pump work, gradually decrease loading rate, be fully loaded with
Liquid level is high 98% in cabin；Ship-to-shore pump stops working, and generates inert gas by the inert gas generator on ship and clean
Remaining LNG liquid goods in pipeline, loading are completed；Discharging Process is identical as pipeline used in loading process, the reversed running of goods pump.
Above-described embodiment is only better embodiment of the invention, therefore all according to structure described in present patent application range
It makes, the equivalent change or modification that feature and principle are done, is included in the scope of the patent application of the present invention.
Claims (8)
1. a kind of prismatic LNG flow container device of low-temperature atmosphere-pressure, it is characterised in that: including the first liquid tank tank, the second liquid tank tank and
Third liquid tank tank；The first liquid tank tank, the second liquid tank tank and third liquid tank tank are prism-type IMO independence A type liquid tank tank；Institute
It states the first liquid tank tank, the second liquid tank tank and third liquid tank tank and passes through liquid container saddle seat respectively and be fixed on LNG ship oceangoing ship；First liquid
Cabin tank, the second liquid tank tank and its central area of third liquid tank tank are respectively arranged with rib type gas chamber；The first liquid tank tank includes tank
Body, and be set to the swash bulkhead on the inside of tank body, and be installed on the cargo handling pipeline of tank interior, and with cargo handling pipeline
The two goods pump and atomizing pump of connection, and the multiple nozzles being respectively arranged on cargo handling pipeline；It is installed between the two goods pumps
There are the liquid level and sensor for measuring temperature of radar type；The tank body center is equipped with snorkel；The snorkel and rib type gas
Room connection；The tank body side is equipped with inert gas input pipe；The goods pump, atomizing pump, liquid level and sensor for measuring temperature
It is electrically connected respectively with the instrument cabinet for being installed on tank body dome；Described its tank interior structure of third liquid tank tank and the first liquid tank tank
Its tank interior structure is identical；Described its tank interior structure of second liquid tank tank and its tank interior structure of the first liquid tank tank are in axis
It is symmetrical arranged；Its tank body of the second liquid tank tank and third liquid tank tank its tank interior have also been independently arranged fuel pump；The combustion
Oil pump and cargo handling piping connection, and fuel pump and instrument cabinet are electrically connected.
2. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: in the tank body also
Be provided with for can reach the bilge into ladder and facilitate the ladder access and platform of disengaging.
3. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: first liquid tank
Tank, the second liquid tank tank and third liquid tank tank are 304L stainless steel material.
4. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: first liquid tank
Tank its having a size of 42.0*25.0*15.8 meters, weight 726T, volume is 14000 cubic metres.
5. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: second liquid tank
Tank its having a size of 43.6*25.0*15.8 meters, weight 837T, volume is 16800 cubic metres.
6. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: the third liquid tank
Tank its having a size of 41.2*25.0*15.8 meters, weight 823T, volume is 15900 cubic metres.
7. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: each rib type
It is provided on gas chamber for the connector with cargo handling and into and out of entering hole.
8. the prismatic LNG flow container device of low-temperature atmosphere-pressure according to claim 1, it is characterised in that: first liquid tank
The lifting lug of lifting is separately provided for outside tank, the second liquid tank tank and third liquid tank tank its tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524702.4A CN109854945A (en) | 2018-12-13 | 2018-12-13 | A kind of prismatic LNG flow container device of low-temperature atmosphere-pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524702.4A CN109854945A (en) | 2018-12-13 | 2018-12-13 | A kind of prismatic LNG flow container device of low-temperature atmosphere-pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109854945A true CN109854945A (en) | 2019-06-07 |
Family
ID=66891056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811524702.4A Withdrawn CN109854945A (en) | 2018-12-13 | 2018-12-13 | A kind of prismatic LNG flow container device of low-temperature atmosphere-pressure |
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| CN (1) | CN109854945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158311A (en) * | 2020-04-30 | 2021-01-01 | 沪东中华造船(集团)有限公司 | LNG ship liquid dome segmented construction precision control method |
-
2018
- 2018-12-13 CN CN201811524702.4A patent/CN109854945A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158311A (en) * | 2020-04-30 | 2021-01-01 | 沪东中华造船(集团)有限公司 | LNG ship liquid dome segmented construction precision control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190607 |
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| WW01 | Invention patent application withdrawn after publication |