System and method for LNG transport and distribution
阅读说明:本技术 Lng运输和配送的系统和方法 (System and method for LNG transport and distribution ) 是由 高天宇 张文乾 于 2019-09-27 设计创作,主要内容包括:本发明涉及一种LNG运输和配送的系统和方法,所述LNG运输配送系统包括散装液体运输船、第二艘船、浅水船、第一液体输送系统、第二液体输送系统、运输车辆和位于码头的集装箱起重机。所述LNG运输配送方法包括:将散装液体从散装液体运输船的第一液货舱里转移到第二艘船上的多个第二液货储罐里;让浅水船定位在第二艘船旁,将散装液体从第二艘船上的至少一个第二液货储罐转移到浅水船上的多个联运集装箱里;将浅水船停靠在码头,并将一个或多个联运集装箱装载到陆地车辆上;通过陆地车辆将一个或多个联运集装箱运输到陆上目的地。本发明能够快速、高效、有效地交付散装液体货物,而不需要建立广泛和资本密集型的基础设施。(The present invention relates to a system and a method for LNG transport and distribution, the LNG transport and distribution system comprising a bulk liquid carrier, a second ship, a shallow water ship, a first liquid transfer system, a second liquid transfer system, a transport vehicle and a container crane at a quay. The LNG transportation and distribution method comprises the following steps: transferring bulk liquid from a first cargo tank of a bulk liquid carrier vessel to a plurality of second cargo tanks on a second vessel; positioning the shallow water vessel alongside a second vessel, transferring bulk liquid from at least one second liquid cargo tank on the second vessel to a plurality of intermodal containers on the shallow water vessel; docking the shallow water vessel at a dock and loading one or more intermodal containers onto the land vehicle; one or more intermodal containers are transported by land vehicles to land destinations. The present invention enables the rapid, efficient, and effective delivery of bulk liquid cargo without the need for extensive and capital-intensive infrastructure.)
1. A system for transporting and distributing bulk liquids to a plurality of onshore destinations, the system comprising:
a bulk carrier having one or more first cargo tanks, each first cargo tank capable of storing a first volume of bulk liquid;
a second vessel having a plurality of second cargo tanks, each second cargo tank capable of storing a second volume of bulk liquid, wherein the second volume is less than or equal to the first volume;
a shallow water vessel designed to rest alongside the quay or said second vessel and to carry a plurality of intermodal containers capable of storing bulk liquid, respectively;
a first liquid transfer system configured to transfer liquid from one or more first cargo tanks in said bulk liquid transport vessel to a plurality of second liquid cargo tanks in said second vessel;
a second liquid transfer system configured to transfer liquid from second liquid cargo tanks of the second vessel to intermodal containers on the shallow water vessel;
a container crane at the terminal, wherein the container crane is configured to unload the intermodal container from the shallow water vessel and load one or more intermodal containers onto the transport vehicle while the terminal is docked; and the combination of (a) and (b),
a transport vehicle for transporting one or more intermodal containers from a terminal to an onshore destination.
2. The system of claim 1, wherein the bulk liquid carrier comprises an lng carrier.
3. The system of claim 1 or claim 2, wherein the second vessel comprises a liquefied gas floating vessel or a fuel vessel.
4. A system according to any of claims 1 to 3, wherein the second vessel is equipped with a Dynamic Positioning System (DPS) and/or gyrostabiliser system for stabilisation, in particular when the second vessel receives bulk liquid from the bulk liquid carrier and when the second vessel fills the shallow water vessel with liquid.
5. The system of any one of claims 1-4, wherein the shallow water vessel comprises a barge.
6. The system according to any one of claims 1-5, wherein the shallow water vessel is adapted to be connected to propulsion means for sailing the shallow water vessel between the quay and the second vessel.
7. The system of claim 6, wherein the propulsion means comprises one or more articulated tugs connected to the shallow water vessel in an articulated barge system.
8. The system according to any one of the preceding claims, wherein said first cargo tank is selected from the group consisting of membrane tanks, storage-type tanks, stand-alone tanks, integral tanks, "a" type tanks, "B" type tanks, "C" type tanks or any other commercial tanks, capable of storing a desired total volume of bulk liquid, in particular cryogenic liquid.
9. The system of any one of the preceding claims, wherein the second liquid cargo tank of the second vessel comprises a "C" tank.
10. The system of any preceding claim, wherein the intermodal container is an ISO tank.
11. The system of any preceding claim, wherein the intermodal containers are placed in a stack on a shallow water vessel.
12. The system of any one of the preceding claims, wherein the first and second liquid delivery systems each comprise a manifold, at least one liquid delivery line, a vapor return line, a pump for circulating the bulk liquid, and one or more loading arms supporting the lines during transport of the bulk liquid.
13. The system of claim 12, wherein the first and second liquid delivery systems further comprise a control system configured to facilitate simultaneous delivery of bulk liquid to each of the second liquid cargo tanks or intermodal containers.
14. The system of claim 12 or 13, wherein the second liquid cargo tank of the second vessel and the intermodal container each have a fill port fluidly communicable with a liquid line and an outlet fluidly communicable with a vapor line of the respective first and second liquid delivery systems.
15. The system according to any one of the preceding claims, wherein the second liquid cargo tank of the second vessel and the intermodal container are equipped or otherwise equipped with sensing and/or tracking capabilities, respectively, to monitor the respective geographical locations of the second liquid cargo tank and the intermodal container, and/or operating parameters, such as filling amount.
16. The system according to any one of the preceding claims, wherein the second vessel has an onboard liquefaction plant installed, whereby boil-off gas generated in the second cargo tank during bulk liquid transfer can be collected and re-liquefied.
17. A method for transporting and sub-packaging bulk liquids to a plurality of onshore destinations, the method comprising:
the liquid is interconnected between one or more first cargo tanks on the bulk fluid carrier vessel, each first cargo tank having a first volume, and a plurality of second cargo tanks on the second vessel, each individual second cargo tank being capable of storing a second volume of bulk liquid;
transferring bulk liquid from a first cargo tank of a bulk liquid carrier vessel to a plurality of second cargo tanks on a second vessel; positioning the shallow water vessel alongside the second vessel and preparing for transfer of bulk liquid from the at least one second liquid cargo tank of the second vessel to the plurality of intermodal containers on the shallow water vessel;
transferring bulk liquid from at least one second liquid cargo tank on a second vessel to a plurality of intermodal containers on the shallow water vessel;
docking the shallow water vessel at a dock and loading one or more intermodal containers onto the land vehicle; and transporting the one or more intermodal containers to the onshore destination by the land vehicle.
18. The method of claim 17, wherein the method further comprises loading empty intermodal containers from the dock onto the shallow water vessel, maneuvering the shallow water vessel to a second vessel, and repeating the method.
19. Method according to claim 17 or 18, the second vessel and the shallow water vessel being arranged side by side adjacent to each other before transferring liquid between the second vessel and the shallow water vessel.
20. The method of claim 17 or 18, the second vessel and the shallow water vessel being arranged adjacent to each other in end-to-end or in series before transferring liquid between the second vessel and the shallow water vessel.
21. The method of any one of claims 17-20, wherein transferring bulk liquid from a first cargo tank of the bulk liquid carrier vessel to a plurality of second liquid cargo tanks on the second vessel comprises simultaneously filling the second liquid cargo tanks with bulk liquid.
22. The method of claims 17-21, wherein transferring bulk liquid from the at least one second liquid cargo tank of the second vessel to the plurality of intermodal containers on the shallow water vessel comprises simultaneously filling the plurality of intermodal containers with bulk liquid.
23. The method of claims 17-22, wherein boil-off gas generated in the second liquid cargo storage tank during bulk liquid transfer is used directly as power fuel for the second vessel.
Technical Field
The present invention relates to systems and methods for transporting and dispensing bulk liquid cargo. In particular, the present invention relates to systems and methods for transporting and transporting hydrocarbon liquids, such as Liquefied Natural Gas (LNG).
Background
The following discussion of the background to the invention is intended to facilitate an understanding of the prior art. Any discussion of documents, acts, materials, devices or articles which has been included in the present specification is not to be taken as an admission that any or all of these matters form part of the prior art base or were common general knowledge in the field relevant to the present invention as it existed before the priority date of each appended claim.
Various systems for transporting, offloading, transporting and distributing bulk liquid cargo, such as Liquefied Natural Gas (LNG), are known. In the context of liquefied natural gas, the primary mode of transportation is by sea. LNG is loaded into LNG carriers and transported by sea to LNG receiving stations, after which the LNG is transferred by pipeline to storage tanks at the dock or through regasification facilities, and then transported and distributed to other geographical locations by onshore natural gas pipelines.
The technology in this area is relatively well developed and this array of carriers, transport terminals and tanks is ready for use. However, these infrastructure associated with LNG receiving stations are capital intensive, require not only a large amount of land, but are often geographically limited to sites with suitable deep water harbors. Thus, LNG is typically only shipped to locations having LNG receiving stations, such as LNG offloading arms and suitable for large carrier mooring or dockside ports, regasification and storage facilities, cryogenic pipelines, etc. for offloading.
Technologies such as ship-to-ship (STS) LNG transfer systems have been developed, at least in part, in response to the need for more flexible and agile LNG transportation and distribution solutions. The ability to transfer LNG from larger to smaller LNG tonnage tanks is very useful in opening up new markets, such as shallow water depths or no infrastructure restrictions at the receiving site. However, the receiving site must still have a large capital investment to build infrastructure such as receiving station docks, cryogenic pipelines, lng regasification facilities, storage tanks, and large amounts of land.
Thus, LNG transportation, distribution systems and infrastructure, and limited LNG transportation and distribution, particularly at locations remote from the LNG receiving station, remain important obstacles to receiving and using LNG as a fuel/energy source. Despite the general increase in demand for liquefied natural gas, liquefied natural gas can provide a cleaner source of energy, at least in part due to reduced carbon dioxide and zero sulfur emissions, and provide LNG to end consumers in liquid form, for example, as a transportation fuel.
Accordingly, there is a need to be able to transport, distribute and ship lng to multiple locations in a fast, efficient and effective manner without the need to build infrastructure that is extensive and requires a large capital investment. In addition, there is a need to increase the flexibility in the transportation, distribution and delivery of lng.
Disclosure of Invention
The present invention relates to a system and method for transporting bulk liquid cargo, such as liquefied gas. The disclosed systems and methods seek to provide flexibility in transporting and delivering bulk liquids, such as liquefied natural gas, without the need to invest in building extensive and capital intensive infrastructure.
In various embodiments, the present invention provides a system for transporting and distributing bulk liquids to a plurality of onshore destinations, the system comprising:
a bulk carrier having one or more first cargo tanks, each first cargo tank capable of storing a first volume of bulk liquid;
a second vessel having a plurality of second cargo tanks, each second cargo tank capable of storing a second volume of bulk liquid, wherein the second volume is less than or equal to the first volume;
a shallow water vessel designed to rest alongside the quay or said second vessel and to carry a plurality of intermodal containers capable of storing bulk liquid, respectively;
a first liquid transfer system configured to transfer liquid from one or more first cargo tanks in said bulk liquid transport vessel to a plurality of second liquid cargo tanks in said second vessel;
a second liquid transfer system configured to transfer liquid from second liquid cargo tanks of the second vessel to intermodal containers on the shallow water vessel;
a transport vehicle for transporting one or more intermodal containers from a terminal to an onshore destination; and the combination of (a) and (b),
a container crane at the terminal, wherein the container crane is configured to unload an intermodal container from the shallow water vessel and load one or more intermodal containers onto the transport vehicle while the terminal is docked.
In various embodiments, the bulk liquid carrier may be a liquefied gas carrier, such as a liquefied natural gas carrier.
In this particular embodiment, the second vessel may be a liquefied gas buoyancy tank and/or filling vessel. In various embodiments, the second vessel may be equipped with a Dynamic Positioning System (DPS) and/or gyrostabiliser system for stabilisation, particularly when the second vessel receives bulk liquid from the bulk liquid carrier vessel and when the second vessel fills the shallow water vessel with liquid.
In one embodiment, the shallow water vessel may be a barge, particularly a non-self-propelled barge. In various embodiments, the shallow water vessel may be adapted to be associated with a propulsion device for moving the shallow water vessel between the quay and the second vessel. The propulsion means may comprise one or more articulated tugs connected to the shallow water vessel in an articulated tug/barge system. In various embodiments, the shallow water vessel may be an articulated barge (ATB). In various embodiments, one or more shallow water vessels may be employed.
In various embodiments, the bulk carrier is provided with a tank containment system comprising one or more first cargo tanks, optionally membrane tanks, storage type tanks, stand-alone tanks, integral tanks, "a" tank, "B" tank, "C" tank or any other commercial tank capable of storing a desired total volume of bulk liquid, particularly cryogenic liquid.
In various embodiments, the second liquid cargo tank of the second vessel may be one or more commercial bulk liquid tanks, such as "C" type tanks.
In various embodiments, the intermodal container may be an ISO tank, most suitably an intermodal container meeting ISO standards. In various embodiments, the intermodal container may be a type T75 ISO tank. Intermodal containers may be arranged in stacks on shallow water vessels.
In various embodiments, the first and second liquid delivery systems each include a manifold, at least one liquid delivery line, a vapor return line, an inert gas purge line, a pump for circulating the bulk liquid, and one or more loading arms that support the lines during transport of the bulk liquid.
In some embodiments, the first and second liquid delivery systems may further comprise a control system configured to facilitate the simultaneous delivery of bulk liquid to each of the second liquid cargo tanks or intermodal containers. In this way, the control system reduces the time to fill the second liquid cargo tank and the intermodal container.
In various embodiments, the second liquid cargo tank of the second vessel and the intermodal container each have a fill port fluidly communicable with the liquid line and an outlet fluidly communicable with the vapor lines of the respective first and second liquid transport systems.
In various embodiments, the second liquid cargo tank of the second vessel and the intermodal container, respectively, may be equipped or otherwise equipped with sensing and/or tracking capabilities to monitor the respective geographic locations of the second liquid cargo tank and the intermodal container, and/or operating parameters such as fill volume, pressure, and specifications.
In another embodiment, the second vessel has onboard liquefaction equipment installed so that boil-off gas generated in the second cargo tank during bulk liquid transfer can be collected and liquefied for recycling.
In various embodiments, the system provides a method of transporting and distributing bulk liquid to an onshore destination, the method comprising:
the liquid is interconnected between one or more first cargo tanks on the bulk liquid carrier vessel, each first cargo tank having a first volume, and a plurality of second cargo tanks on the second vessel, each second cargo tank capable of storing a second volume of bulk liquid;
transferring bulk liquid from a first cargo tank of a bulk liquid carrier vessel to a plurality of second cargo tanks on a second vessel;
positioning the shallow water vessel alongside the second vessel and preparing for transfer of bulk liquid from the at least one second liquid cargo tank of the second vessel into the plurality of intermodal containers on the shallow water vessel;
transferring bulk liquid from at least one second liquid cargo tank on a second vessel to a plurality of intermodal containers on the shallow water vessel;
docking the shallow water vessel at a dock and loading one or more intermodal containers onto the land vehicle; and the combination of (a) and (b),
one or more intermodal containers are transported by land vehicles to land destinations.
In various embodiments, the scheme may further include loading empty intermodal containers from the dock onto the shallow water vessel, maneuvering the shallow water vessel toward the second vessel, and repeating the above method.
In various embodiments, the second vessel may be positioned adjacent to the shallow water vessel side-by-side prior to transferring the liquid between the second vessel and the shallow water vessel.
In another embodiment, the second vessel and the shallow water vessel may be arranged adjacent to each other in end-to-end or in series before transferring the liquid between the second vessel and the shallow water vessel.
In various embodiments, transferring bulk liquid from the first cargo tank of the bulk liquid carrier vessel to the plurality of second liquid cargo tanks on the second vessel includes simultaneously filling the plurality of second liquid cargo tanks with bulk liquid.
In various embodiments, transferring bulk liquid from the at least one second liquid cargo tank of the second vessel to the plurality of intermodal containers on the shallow water vessel includes simultaneously filling the plurality of intermodal containers with bulk liquid.
In various embodiments, the method may use one or more shallow water vessels, wherein each shallow water vessel may in turn be located adjacent to the second vessel. After transferring bulk liquids to multiple intermodal containers, each shallow water vessel may be deployed to the same and/or separate docks.
In various embodiments, boil-off gas generated in the second cargo tank during bulk liquid transfer is used directly as fuel for the second vessel.
Although the presently preferred embodiments of the present invention relate to the transportation and distribution of LNG, the present invention should not be construed as limited to LNG. The present system and scheme may be used for transporting and dispensing a variety of bulk liquid cargo.
These and various other embodiments and features of the invention are set forth in the following claims. However, for a better understanding of the invention, reference should be made to the drawings and to the accompanying descriptive matter, in which various exemplary embodiments of the invention are illustrated and described.
Drawings
Various embodiments of the present invention will be described and illustrated by way of example only, and with reference to the accompanying figures, in which:
FIG. 1A is a schematic diagram of the LNG transport and distribution system of the present invention;
FIG. 1B is a schematic diagram of the LNG transport and distribution process of the present invention; (ii) a
Fig. 2A shows a bulk liquid transport vessel adjacent to a second vessel;
fig. 2B shows the relative position of the bulk fluid carrier vessel adjacent the second vessel prior to transferring bulk fluid from the first tank of the bulk fluid carrier vessel to the second tank of the second vessel.
Fig. 2C shows the relative positions of the bulk fluid carrier vessel and the second vessel of fig. 2A after transferring bulk fluid from the first cargo tank to the second cargo tank.
FIG. 3A is a cross-sectional view of a second vessel adjacent the shallow water vessel prior to transfer of bulk liquid on the shallow water vessel of FIG. 1 from the second liquid cargo tank to the intermodal containers;
fig. 3B shows the relative positions of the second vessel and the shallow water vessel after transfer of bulk liquid from the second liquid cargo tank to the intermodal container in fig. 2A.
Fig. 4A shows a side view of a second vessel;
fig. 4B is a plan view of the second vessel;
fig. 4C is a cross-sectional view of the second vessel;
FIG. 5A shows a side view of a shallow water vessel configured with intermodal containers adapted for side filling of bulk liquids;
FIG. 5B is a plan view of a shallow water vessel;
FIG. 5C is a cross-sectional view of the shallow water vessel;
fig. 6 shows a plan view of a second vessel adjacent to the shallow water vessel, with the second liquid cargo tank in connection with the intermodal container in a side-fill arrangement;
FIG. 7A is a side view of a shallow water vessel in another configuration suitable for end-to-end or series bulk liquid loading;
FIG. 7B is a plan view of the shallow water vessel of FIG. 7A;
FIG. 7C is a cross-sectional view of the shallow water vessel of FIGS. 7A and 7B;
fig. 7D is a plan view of the intermodal container of fig. 7A-7C, including liquid, vapor and pressure relief lines;
FIG. 8A is a side view of one embodiment of an intermodal container;
fig. 8B is a front end view of the intermodal container of fig. 8A;
fig. 8C is a rear end view of the intermodal container of fig. 8A, 8B;
fig. 9A is a rear end view of the intermodal container of fig. 8A-8C, showing details of the liquid transfer lines, vapor lines, and depressurization lines;
fig. 9B is view a of fig. 9A.
In the drawings, the same reference numerals will be used to designate the same or similar parts. Further, a single reference number will be used to identify the pipe, pipe or pipeline and the flow carried by the pipeline.
Detailed Description
In this specification the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element, integer or step, or group of elements, integers or steps, but not the exclusion of any other element, integer or step, or group of elements, integers or steps.
Referring initially to fig. 1A and 1B, schematic diagrams of embodiments of schemes and systems for transporting bulk liquid cargo are shown. The following description is provided in the case where the bulk liquid cargo is a liquefied gas, such as liquefied natural gas or liquefied petroleum gas, but it is to be understood that the invention may be useful for transporting other bulk liquids.
In its broadest sense, the system includes a bulk
As shown in fig. 2A and 2B, the bulk
The one or more first cargo tanks 18 may be one or more commercial storage tanks, including integral storage tanks that constitute the primary structural components of the vessel. Integral storage tanks may be useful when transporting bulk liquids, such as liquefied petroleum gas, at near atmospheric conditions. The one or more first cargo tanks 18 may also be one or more tanks which are self-supporting in nature and do not form an integral part of the hull structure. Non-limiting examples refer to, for example, monolithic tanks having an "A" type tank (as shown), a "B" type tank such as a Moss type spherical tank, a "C" type tank or a membrane tank such as those produced by GTT.
There may be one or more first cargo tanks 18 arranged in any suitable manner in the bulk carrier, the first tanks 18 extending to a length extending both forward and aft of the intermediate vessel. The first cargo tanks 18 may also be arranged side-by-side along the longitudinal axis of the
It should be understood that the commercially available storage tanks cannot provide 100% insulation effect, and Boil Off Gas (BOG) is inevitably generated when the cargo is LNG. Thus, the bulk
Referring now in particular to fig. 4A to 4C, an embodiment of the
In the embodiment shown in the figures, the
The one or more second
In the embodiment shown in the figures, the plurality of second
The
The at least one
The at least one
In the embodiment shown in the figure, the
The use of boil-off gas as the motive fuel for the
The DPS (not shown) of the
Referring now to fig. 5A through 5C, a
The
The method and system of the present invention may include two or more
One or more
In this embodiment, the
Such
Each
Each
In the embodiment shown in the figures, and in particular fig. 5A-5C, the
A
In the
This arrangement is particularly suitable for side loading of bulk liquid, i.e. the transfer of bulk liquid from one or more second
The
Fig. 7A-7C show an alternative arrangement for the
In an end-to-end STS cargo loading arrangement, bulk liquid is again transferred to the
According to some embodiments of the present invention, a solution for transporting and distributing bulk liquid cargo, such as liquefied natural gas, may begin with the procurement of large quantities of liquefied natural gas from a long-term/off-the-shelf liquefied natural gas market. The batch of liquefied natural gas is initially stored and transported in one or more first cargo tanks 18 of the bulk
The
The bulk
With the
The
The
One or more
Once the
The
The second
The bulk liquid may then be transferred from the one or more second
The bulk liquid cargo is pumped or otherwise caused to flow from the second
The transfer and loading of bulk liquid cargo is controlled and monitored by a second vessel computer system (not shown). The flow, dispersion profile and fill level of the
Typically, each
Boil-off gas is inevitably encountered during the transportation of lng to the
After filling of the
Upon arrival at a port and berthing, the
The
Thus, the disclosed solution and system has a number of advantages. The solution and system enable fast, efficient, and effective delivery of bulk liquid cargo without the need for extensive and capital intensive infrastructure.
When the bulk liquid is liquefied natural gas, the scheme and the system can quickly, efficiently and flexibly convey clean energy. The solution and system of the invention make the transportation of lng simple and can be transported to essentially any site where there is a water course and the ability to unload standard containers. Furthermore, the shipment of liquefied natural gas is not limited by the supply of natural gas from large ships, which tend to have long waiting times. Instead, the scheme and system provide flexibility in the transportation and distribution of lng so that lng cargoes can be purchased from lng producers around the world and quickly delivered to nearby ports and end users. The system can take advantage of a variety of off-the-shelf markets, and is not limited to any particular geographic area, as the system's mobility allows all traffic to be diverted to different locations as necessary.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the above-described embodiments without departing from the broad general scope of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:微机械构件和用于制造微机械构件的方法