CN115182307A - LNG filling wharf facility and implementation method thereof - Google Patents

Abstract

The invention provides LNG filling wharf facilities and an implementation method thereof, wherein the LNG filling wharf facilities are based on a traditional large LNG receiving and unloading wharf, and additionally comprise berth-supporting piles (1001), berth-supporting piles, sea-side fenders (1002), berth-supporting piles, land-side fenders (1003), shore guide cable facilities (1004), an integrated base (1005) and protection facilities; on the basis of effectively improving the utilization rate of the existing large LNG wharf berth shoreline, the method not only keeps the function of the original wharf, but also realizes the function of filling ships in the small or inland LNG wharf, and can meet the filling transportation of LNG filling ships below 1-3 ten thousand square meters. Meanwhile, the construction period is short, the investment is quick to take effect, the construction cost is low, and the investment benefit is high.

Description

LNG filling wharf facility and implementation method thereof

Technical Field

The invention belongs to the field of wharf design, and particularly relates to an LNG filling wharf facility and an implementation method thereof.

Background

In recent years, in response to "carbon peaking", "carbon neutralization" dual carbon requirements, reducing carbon emissions, LNG refueling and inland river transportation are one of the important trends for future development. In order to further increase the flexibility and economic benefit of LNG export, a plurality of novel small LNG return filling ships and inland river LNG transport ships (LNG ships with the size of 1-3 ten thousand square can be unloaded) appear in the energy market, and a plurality of novel LNG return filling new states appear in the market. The conventional Liquefied Natural Gas (LNG) terminal generally mainly receives oil and gas from a large LNG carrier arriving at the terminal, and the current international market dominant LNG carrier type is generally 14.5-17.6 ten thousand square (GRT) LNG carriers, and the largest LNG carrier type is 26.6 ten thousand square LNG carriers.

In the prior art, a large butterfly-shaped oil-gas wharf is usually constructed, so that the LNG is connected and disconnected in batches, and the transportation cost is reduced. Meanwhile, in general, the LNG loading and unloading wharf is a high-grade deepwater berth, the utilization rate of the berth is not high, and 2-3 large LNG storage tanks and a series of receiving process facilities thereof are arranged behind the LNG loading and unloading wharf. And the conventional LNG loading and unloading wharf generally takes loading and unloading as a main part, stores the LNG in a rear storage tank after loading and unloading, and then directly transfers the LNG to a rear city on land through a land gasification device, or fills and externally transfers the LNG fuel to an inland river city and other peripheral cities through a newly-built small LNG berth.

Therefore, the conventional large LNG wharf not only limits the berth type, but also has low berth utilization rate, and can only carry out receiving and unloading, if the filling function is realized, only the small LNG berth is newly built. Therefore, chinese patent CN202010700622.0 designs an asymmetric butterfly LNG wharf structure of cubic breakwater structure, including work platform, a plurality of fender mounds and a plurality of mooring rope mounds, a plurality of fender mounds distribute in work platform both sides, be equipped with loading and unloading arm second floor platform and boarding ladder on the work platform, and be connected with the piping lane pipe support on the work platform. Although the adaptability of the wharf berthing various LNG ships and the safety of the wharf in the operation period are improved, the wharf berthing safety monitoring system is more convenient to construct and maintain, and the problems of low berth utilization rate, single function and the like are still not solved. Chinese patent CN201710398705.7 discloses a mobile LNG receiving station storage and filling platform, which comprises a floating unit hull with one side used for mooring at an LNG receiving station wharf and the other side provided with a berth for mooring a medium-small LNG ship, an LNG storage system arranged at the upper part of the floating unit hull, an LNG unloading system, an LNG filling system, a BOG low-pressure processing system, an LNG vaporizer system, a discharging system and a public auxiliary system, wherein the LNG unloading system, the LNG filling system, the BOG low-pressure processing system, the LNG vaporizer system, the discharging system and the public auxiliary system are fixedly arranged at the upper part of the floating unit hull. Although this patent can solve the ship type restriction and the function singleness scheduling problem that traditional large-scale pier exists, its input cost is big, construction cycle is long and the later maintenance is also comparatively loaded down with trivial details.

Therefore, how to optimize and reform existing large-scale wharf (8-26.6 ten thousand LNG ships that can be connected and disconnected) facilities, and realize the filling function of small-scale or inland river LNG wharf ships on the basis of keeping the original wharf function, so as to meet the filling and transportation requirements of LNG filling ships below 1-3 ten thousand, effectively improve the utilization rate of the existing large-scale LNG wharf berth shoreline, and effectively shorten the construction period and reduce the investment cost is a technical problem to be solved by technicians in the field at present.

Disclosure of Invention

In order to achieve the above purpose, the present application provides the following technical solutions:

an LNG filling wharf facility comprises a working platform, a berthing pier, a mooring pier, a pedestrian steel temporary bridge and a liquid collecting pool; one or two groups of the berth piers are arranged and are respectively clung to the left side and the right side of the working platform; the mooring line piers are provided with two or three groups, are respectively arranged at the oblique rear parts of the berth-standing piers and are connected with the berth-standing piers through the pedestrian steel temporary bridge; the liquid collecting pool is arranged close to the rear part of the working platform; the working platform is also provided with an air transmission arm, a boarding ladder, pipeline facilities, fire-fighting facilities and safety facilities;

the system also comprises berthing tufted piles, berthing tufted pile sea side fender, berth tufted pile land side fender, a guide cable facility for a shore, an integrated base and a protection facility; the berthing cluster pile is arranged in front of the working platform and is connected with the working platform through the integrated base; the sea side fender of the berthing cluster pile is connected with the integrated base through a bolt connection technology; one side of the fender on the land side of the berthing cluster pile is connected with the integrated base through a bolt connection technology, and the other side of the fender is connected with the working platform through a bar planting bolt technology; the cable guiding facilities and the protecting facilities for the bank are both arranged on the ship-leaning pier and are connected with the ship-leaning pier by adopting a bar planting technology.

Preferably, the berthing tufted piles are arranged in a plurality of groups, and each group of berthing tufted piles consists of 1-2 steel pipe piles or cast-in-place piles.

Preferably, the shore fairlead and the protective means are made of hot rolled steel plates.

Preferably, the integrated base consists of a steel sleeve at the top of the external berthing tufted pile, a berthing tufted pile sea side fender base and a berthing tufted pile land side fender base from bottom to top.

Preferably, the integrated base is formed by integrally processing a steel support foundation selected for use in a steel structure processing plant through a welding technology.

Preferably, the mooring tufted pile sea side fender is connected with the mooring tufted pile sea side fender base through a bolt; one side of the berthing tufting pile land side fender is connected with the berthing tufting pile land side fender base through bolts.

Preferably, the integrated base is fixedly connected with the berth-bearing cluster pile through cast-in-place fine aggregate concrete or grouting technology.

The implementation method of the LNG filling wharf facility comprises the following steps:

the method comprises the following steps: customizing a berthing cluster pile, a berthing fender at the sea side of the berthing cluster pile and an integrated base, and transporting to the site.

Step two: during the stop of the large LNG berth, pile sinking construction of berthing cluster piles is realized by using pile sinking equipment;

step three: installing an integrated base, and realizing fixed connection with the berthing tufted pile by using cast-in-place fine aggregate concrete or grouting technology, wherein if the berthing tufted pile adopts a steel pipe pile, medium coarse sand backfilling and pile core concrete pouring are required to be completed before fixed connection;

step four: the installation and fixation of the cable guiding facilities and the protective facilities for the bank are finished by adopting a bar planting technology;

step five: when the strength of the fixedly connected concrete reaches the design requirement, mounting a sea side fender and a land side fender of the berthing cluster pile;

step six: carrying out process transportation transformation from the back tank area to the small LNG transport ship to finish liquefied natural gas refilling process pipeline transformation;

step seven: and carrying out necessary safety tests of navigation, mooring and back filling loading and unloading operation, and completing the operation debugging of the small LNG filling ship by mooring and back filling operation.

Compared with the prior art, the invention has the following beneficial effects:

1. compared with the traditional method that at least 200m shoreline resources are required to be newly added to a newly-built wharf berth meeting the requirement of an LNG filling ship with the power of less than 1-3 ten thousand, the LNG filling-back wharf facility provided by the invention can realize the filling function of a small or inland LNG wharf ship only by additionally arranging related facilities on the premise of fully considering the low utilization rate of the original large LNG loading and unloading wharf berth, does not need to additionally increase the use of shoreline resources, maximally utilizes the existing shoreline resources, and obviously improves the utilization rate of the shoreline resources.

2. The LNG refueling wharf facility provided by the invention can complete wharf upgrading and reconstruction to realize the ship refueling function of a small or inland LNG wharf by only 1-2 months on the basis of fully considering the non-stop operation of the berth of the original large LNG loading and unloading wharf, and the LNG refueling wharf facility provided by the invention has the advantages of short construction period and quick investment effect.

3. The berth, the approach bridge and the upper process facility of the LNG refueling ship which meets the requirements of less than 1 to 3 ten thousand square are newly built, the investment cost is up to 1.5 to 2.0 hundred million yuan RMB through preliminary measurement and calculation, and the investment cost required by the transformation of the LNG refueling wharf facility provided by the invention on the basis of the original large-scale LNG receiving and unloading wharf is not more than 1000 ten thousand yuan RMB, so that the LNG refueling wharf provided by the invention has low construction cost and high investment benefit.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic plan view of an LNG filling terminal designed based on a conventional large LNG loading and unloading terminal;

fig. 2 is a schematic structural section view of an LNG filling terminal designed based on a conventional large LNG loading and unloading terminal;

in the figure: 1. a large LNG loading and unloading wharf; 2. bridge approach; 3. an LNG filling vessel; 11. a working platform; 12. docking a pier; 13. mooring line piers; 14. a pedestrian steel temporary bridge; 15. a liquid collecting tank; 16. a gas delivery arm; 17. boarding ladder; 101. main berthing fender; 102. quick disengaging hook; 1001. mooring a cluster pile; 1002. mooring a cluster pile sea side fender; 1003. mooring a cluster pile land side fender; 1004. a cable guide facility for shore; 1005. an integrated base.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to help the embodiments of the present application be fully understood. Accordingly, it will be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: the presence of a alone, and both cases a and B alone, and further, the character "/" herein generally means that the former and latter associated objects are in an "or" relationship.

The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.

It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.

Example 1

The embodiment introduces a technical scheme of an LNG filling terminal facility designed based on a traditional large LNG loading and unloading terminal (8-26.6 million-square LNG ships).

Referring to fig. 1 and 2, fig. 1 is a schematic plan view of an LNG loading dock designed based on a conventional large LNG loading and unloading dock, and fig. 2 is a schematic structural section view of an LNG loading dock designed based on a conventional large LNG loading and unloading dock.

The traditional large LNG loading and unloading wharf is generally arranged in a butterfly-shaped plane, and the facilities of the traditional large LNG loading and unloading wharf comprise a working platform 11, a berthing pier 12, a mooring pier 13, a pedestrian steel temporary bridge 14 and a liquid collecting tank 15; one or two groups of the berth piers 12 are arranged and respectively clung to the left side and the right side of the working platform 11; the mooring dolphins 13 are provided with two or three groups, are respectively arranged at the oblique rear parts of the berth-standing dolphins 12, and are connected with the berth-standing dolphins 12 through pedestrian steel temporary bridges 14; the mooring dolphins 13 are also connected with each other through a pedestrian steel temporary bridge 14; the liquid collecting pool 15 is arranged close to one corner of the rear part of the working platform 11.

Further, a gas transmission arm 16, a boarding ladder 17, pipeline facilities, fire-fighting facilities and safety facilities are arranged on the working platform 11.

Furthermore, the working platform 11 is located 1-2 m behind the front edge line of the large LNG unloading dock 1 and is connected with a rear land tank field through a bridge approach 2.

Further, a main berthing fender 101, a quick release hook 102, a fire-fighting facility and a safety facility are arranged on the berthing pier 12.

Furthermore, a fender connection base is arranged in front of the working platform 11 and behind the front edge line of the wharf, and is used for realizing connection with the main berthing fender 101.

Further, a quick release hook 102 and a safety device are arranged on the mooring dolphin 13.

An LNG filling wharf facility designed on the basis of the conventional large LNG loading and unloading wharf is additionally provided with berthing tufted piles 1001, berthing tufted pile sea side fender 1002, berthing tufted pile land side fender 1003, a shore cable guiding facility 1004, an integrated base 1005 and a protection facility;

the berthing piles 1001 are arranged at proper positions in front of the working platform 11 and connected with the working platform 11 through an integrated base 1005;

the berthing cluster pile sea side fender 1002 is fixedly connected with an integrated base 1005 through a bolt connection technology;

one side of the berthing cluster pile land side fender 1003 is fixedly connected with the integrated base 1005 through a bolt connection technology, and the other side of the berthing cluster pile land side fender is fixedly connected with the working platform 11 through a bar planting bolt technology;

the shore fairlead facilities 1004 are arranged at appropriate angle points in front of the berthing piers 12, are connected with the berthing piers 12 by using a bar planting technology, and are mainly used for arranging and fixing mooring ropes of the small LNG filling ships;

the protective facilities are arranged at proper positions on the berth-keeping pier 12, are connected with the berth-keeping pier 12 by adopting a bar planting technology and are mainly used for protecting the fire-fighting facilities on the berth-keeping pier 12.

Further, the distance between the docking points formed by the docking piles 1001 should not exceed 0.35 times the length of the LNG refueling ship 3, and should not be less than 0.25 times the length of the LNG refueling ship 3.

Further, the shore fairlead 1004 and the shelter are made of hot rolled steel plate.

Further, the integrated base 1005 is formed by integrally processing an external berthing-tufted pile top steel sleeve, a berthing-tufted pile sea-side fender base and a berthing-tufted pile land-side fender base through a welding technology by selecting a steel support foundation in a steel processing plant.

Further, the integrated foundation 1005 and the berth-fastening tufted pile 1001 are fixedly connected through cast-in-place fine aggregate concrete or grouting technology.

Alternatively, the berthing tufted pile 1001 is a steel pipe pile, pile core concrete is poured at the top of the berthing tufted pile, and backfill materials such as medium coarse sand and the like are filled under the pile core concrete.

Furthermore, the mooring tufting 1001, the shore fairlead 1004, and the protection facilities all need to be subjected to durable corrosion protection measures, including sacrificial anodes, corrosion protection coatings, impressed current, and the like.

Further, the total deformability of the mooring tufting sea side fender 1002 and the mooring tufting land side fender 1003 needs to be substantially coordinated with the deformability of the main mooring fender 101 on the docking pier 12.

According to the LNG refueling wharf facility provided by the embodiment, on the premise that the low utilization rate of the berth of the original large LNG loading and unloading wharf is fully considered, the ship refueling function of the small or inland LNG wharf can be realized only by additionally arranging related facilities, the use of shoreline resources is not required to be additionally increased, the existing shoreline resources are utilized to the maximum extent, and the utilization rate of the shoreline resources is remarkably improved. Meanwhile, on the basis of fully considering the fact that the berth of the original large LNG loading and unloading wharf is not stopped, the wharf can be upgraded and reformed only by 1-2 months so as to achieve the ship filling function of the small or inland river LNG wharf, and therefore the construction period is short, and the investment effect is fast. Besides, the construction cost of the wharf is low, and the investment benefit is high.

Example 2

Based on the foregoing embodiment 1, this embodiment introduces an implementation method of an LNG refueling terminal facility, which specifically includes the following steps:

the method comprises the following steps: mooring bollards 1001, mooring fenders 1002 on the sea side of the mooring bollards, mooring fenders 1003 on the sea side of the mooring bollards and an integrated base 1005 are customized and transported to the site.

Step two: during the stop operation of the large LNG berth, pile sinking equipment is utilized to realize pile sinking construction of the berthing cluster piles 1001;

step three: installing an integrated base 1005, and realizing fixed connection with the berthing tufted pile by using cast-in-place fine aggregate concrete or grouting technology, wherein if the berthing tufted pile 1001 adopts a steel pipe pile, medium coarse sand backfilling and pile core concrete pouring are required to be completed before fixed connection;

step four: the installation and fixation of a cable guiding facility 1004 and a protective facility for the shore are finished by adopting a bar planting technology;

step five: when the strength of the fixedly connected concrete reaches the design requirement, mounting a berthing tufted pile sea side fender 1002 and a berthing tufted pile land side fender 1003;

step six: carrying out process transportation transformation from the back tank area to the small LNG transport ship to finish liquefied natural gas refilling process pipeline transformation;

step seven: and (4) carrying out necessary safety argument and evaluation such as navigation, mooring, refilling loading and unloading operation and the like, and completing the operation debugging of the small LNG refilling ship by mooring and refilling operation.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.

Claims (8)

1. An LNG filling wharf facility comprises a working platform (11), a berthing pier (12), a mooring pier (13), a pedestrian steel temporary bridge (14) and a liquid collecting pool (15); one or two groups of the berthing piers (12) are arranged and are respectively clung to the left side and the right side of the working platform (11); the mooring line piers (13) are provided with two or three groups which are respectively arranged at the oblique rear part of the ship-leaning pier (12) and are connected with the ship-leaning pier (12) through a pedestrian steel temporary bridge (14); the liquid collecting pool (15) is arranged close to the rear part of the working platform (11); the working platform (11) is also provided with an air conveying arm (16), a boarding ladder (17), pipeline facilities, fire-fighting facilities and safety facilities;

the system is characterized by further comprising a mooring tufted pile (1001), a mooring tufted pile sea side fender (1002), a mooring tufted pile land side fender (1003), a shore fairlead facility (1004), an integrated base (1005) and a protection facility; the berthing cluster pile (1001) is arranged in front of the working platform (11) and is connected with the working platform (11) through an integrated base (1005); the berthing cluster pile sea side fender (1002) is connected with an integrated base (1005) through a bolt connection technology; one side of the berthing cluster pile land side fender (1003) is connected with the integrated base (1005) through a bolt connection technology, and the other side of the berthing cluster pile land side fender is connected with the working platform (11) through a bar planting bolt technology; the cable guiding facility (1004) for the bank and the protective facility are both arranged on the ship berthing pier (12) and are connected with the ship berthing pier (12) by adopting a bar planting technology.

2. LNG filling terminal installation according to claim 1, c h a r a c t e r i z e d in that the mooring bollards (1001) are arranged in groups, each group of mooring bollards (1001) consisting of 1-2 steel pipe piles or cast-in-place piles.

3. A LNG filling terminal installation according to any of claims 1 or 2, characterized in that the shore fairlead installation (1004) and the protective installation are both made of hot rolled steel plate.

4. An LNG filling terminal installation according to any of claims 1 or 2, characterized in that the integrated foundation (1005) consists, from bottom to top, of an external berthing-tufting top steel sleeve, a berthing-tufting sea-side fender foundation and a berthing-tufting land-side fender foundation.

5. An LNG filling terminal installation according to claim 4, characterized in that the integrated base (1005) is integrally formed by welding technology by selecting a steel support foundation for use in a steel processing plant.

6. An LNG filling terminal installation according to claim 5, characterized in that mooring tufting sea side fenders (1002) are bolted to mooring tufting sea side fender bases; one side of a berthing tufting pile land side fender (1003) is connected with a berthing tufting pile land side fender base through bolts.

7. An LNG filling terminal installation according to any one of claims 5 or 6, characterized in that the integrated foundation (1005) and the berthing piles (1001) are fixedly connected by cast-in-place fine aggregate concrete or grouting technique.

8. Method for implementing an LNG filling terminal installation according to any of claims 1-7, characterized in that it comprises the following steps:

the method comprises the following steps: customizing a berthing tufting pile (1001), a berthing fender (1002) on the sea side of the berthing tufting pile, a berthing fender (1003) on the sea side of the berthing tufting pile and an integrated base (1005), and transporting to the site.

Step two: during the parking period of the large LNG berth, pile sinking equipment is used for achieving pile sinking construction of berthing tufted piles (1001);

step three: installing an integrated base (1005), and realizing fixed connection with the berthing tufted pile by using cast-in-place fine aggregate concrete or grouting technology, wherein if the berthing tufted pile (1001) adopts a steel pipe pile, medium coarse sand backfill and pile core concrete pouring are required to be completed before fixed connection;

step four: the method comprises the following steps of (1) adopting a bar planting technology to finish the installation and fixation of a cable guiding facility (1004) and a protective facility for the shore;

step five: when the strength of the fixedly connected concrete reaches the design requirement, mounting a berthing tufted pile sea side fender (1002) and a berthing tufted pile land side fender (1003);

step six: carrying out process transportation transformation from the back tank area to the small LNG transport ship to finish liquefied natural gas refilling process pipeline transformation;

step seven: and carrying out necessary safety tests of navigation, mooring and back filling loading and unloading operation, and completing the operation debugging of the small LNG filling ship by mooring and back filling operation.

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