KR20140133200A - Gas Test System Of Ship On Near-shore - Google Patents

Abstract

A coastal gas test system for a ship is disclosed. The coastal gas test system for a ship having a liquefying device comprises: a test bed arranged on the coast, and in which a ship is arranged to test a liquefying device; a mooring part for mooring the ship arranged on the test bed; and a gas supply module for regasifying LNG received from an LNG storage tank of the ship and supplying the regasified LNG to the liquefying device.

Description

[0001] The present invention relates to a system for testing a coastal gas of a ship,

The present invention relates to a coastal gas test system for a ship, and more particularly, to a test system for a ship, which comprises a test bed provided on a coast and on which a vessel is placed to test the liquefaction apparatus, And a gas supply module for supplying the LNG from the LNG storage tank of the ship to the liquefaction process unit and regenerating the LNG from the LNG storage tank.

Liquefied natural gas (LNG) is a colorless, odorless transparent liquid obtained by cooling methane-based natural gas to about -162 ° C and liquefying it. Compared to natural gas, And has a volume of about 1/600.

Such LNG is conventionally produced in a production plant constructed onshore and supplied to the consumer through a carrier. However, due to the recent development of offshore gas fields, it is difficult to transfer natural gas from a land-based gas field to a land-based plant when pipelines transport natural gas. And the development of marine structures equipped with production plants to produce LNG by liquefying natural gas at sea is becoming active.

Floating Liquefied Natural Gas (FLNG) is an offshore structure that floats on the sea and treats LNG. Typically, LNG-FPSO (Floating Production, Storage and Offloading) ) And LNG-FSRU (Floating Storage and Regasification Unit). In particular, LNG-FPSO is a special ship capable of producing LNG, storing and liquefying LNG, and storing and storing LNG with natural gas drilled from offshore gas fields.

Since LNG-FPSO processes the production, liquefaction and storage stages at once, it can reduce the time and cost of LNG production and supply more than the conventional method, and when production is completed in one gas field, it moves to another sea gas field It can be used, so it can be economical.

Application No. 10-2010-0122050

LNG-FPSO is a high-cost facility with hundreds of millions of cubic meters of water, and a plant facility capable of producing and storing LNG by drilling natural gas into structures that can float on the sea. In addition, since it is operated in the offshore gas field, it is difficult and limited to repair it in comparison with the land if the abnormality of various facilities occurs.

Therefore, it is necessary to verify the normal operation of the equipment through sufficient performance test before delivery to the owner, such as the drying and test operation phase.

In order to test the performance of liquefying process equipment such as FLNG, LNG for testing the equipment can be supplied to the test equipment and regenerated to test the liquefaction process using natural gas.

In order to test the performance of the liquefying process equipment, a device capable of regenerating LNG is provided in the FLNG, and when the test is completed, the regenerator installed for the test is removed to secure a wider usable space.

The present invention seeks to provide a coastal testing system capable of performance testing of hull and topside equipment, including liquefaction process equipment on ships such as FLNG, at coast.

According to an aspect of the present invention, in a coastal test system for a ship having a liquefaction processing apparatus,

A test bed provided on the coast and on which the vessel is placed to test the liquefaction process apparatus;

A mooring section for mooring the ship disposed in the test bed; And

And a gas supply module for supplying LNG from the LNG storage tank of the ship and regenerating the LNG to the liquefaction process unit.

Preferably, the mooring part is fixed to the seabed of the coast, so that the ship can be moored in a single point mooring manner.

Preferably, the mooring unit comprises: a base plate fixed to the seabed of the coast; a column part provided on the base plate and projecting on the sea surface; and a column part provided on the column part, And a mooring connection to moor the vessel.

Preferably, the gas supply module supplies the LNG stored in the LNG storage tank of the ship to the liquefaction process unit, and the LNG re-liquefied through the test of the liquefaction process unit is supplied to the LNG storage tank And the gas supply module can be detachably attached to the vessel.

Preferably, the gas supply module is disposed in a space provided between the liquefaction processing apparatuses on the deck of the vessel, and the LNG storage tank of the vessel is provided with a pump for supplying LNG to the gas supply module .

Preferably, the vessel may comprise a floating oceanic structure floating on the sea.

Preferably, the floating oceans structure may be FLNG comprising LNG-FPSO and FSRU.

The present invention relates to a liquefied petroleum gas (LNG) storage tank provided with a test bed provided on the coast and in which a ship is placed for testing the liquefaction process apparatus, a mooring unit for mooring a ship disposed on the test bed, And a gas supply module for regenerating the gas and supplying the gas to a liquefaction process unit.

Through this test system, it is possible to confirm not only the normal operation of the liquefaction process equipment but also the installation and normal operation of the pump and piping provided in the LNG storage tank, leaking at cryogenic temperature, . Therefore, the system of the present embodiment can contribute to the test of the overall performance of the hull and topside system of the ship, thereby securing the reliability of the ship owner through the test, and it is possible to shorten the performance test time, reduce the test cost, It is economical because it can be applied to performance tests of various ships.

FIG. 1 schematically shows a method of feeding LNG to an LNG carrier (carrier) to a ship moored along the coast according to the first embodiment of the present invention.
2 schematically shows a ship moored by the SPM method in the first embodiment of the present invention.
Figure 3 schematically illustrates the concept of providing a detachable gas supply module on top of the deck in accordance with a second embodiment of the present invention to test the liquefaction process of the ship.
4 schematically shows a gas supply module for liquefaction process test according to a third embodiment of the present invention.
5 schematically shows a flow in which a gas supply module according to a third embodiment of the present invention is provided in a vessel provided with a liquefaction processing apparatus of a Niche process to perform a performance test of the liquefaction process.
Fig. 6 schematically shows an arrangement of a test module in a ship according to a fourth embodiment of the present invention.
7 is a top plan view of the ship shown in Fig.
FIG. 8 schematically shows a ship liquefaction process apparatus test system according to a fifth embodiment of the present invention.
9 schematically shows a coastal gas testing system for a ship according to a sixth embodiment of the present invention.

In order to fully understand the present invention, operational advantages of the present invention, and objects achieved by the practice of the present invention, reference should be made to the accompanying drawings and the accompanying drawings which illustrate preferred embodiments of the present invention.

Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.

1 schematically shows a method of feeding LNG to an LNG carrier (LC) by feeding it to a ship F moored in the coast according to the first embodiment of the present invention.

1, according to a first embodiment of the present invention, in a coastal testing method for a ship F equipped with a liquefaction processing apparatus, LC is fed and regenerated to test the liquefaction process of the ship F. A method for testing a coastal gas of a ship F is provided.

In the first to sixth embodiments, the term " ship " refers to an offshore structure floating on the sea or floating in the sea. It means a ship requiring liquefaction process of LNG, especially LNG-FPSO and LNG- The LNG carrier, the LNG-RV, and the like may be the vessels of the present embodiments.

It is advisable that these ships (F) constructed in the shipyard are checked for their normal operation at the coast near the shipyard and subjected to a performance test before being installed in the gas field or delivered to the shipowner. In order to perform the performance test of the ship (F), especially the performance test of the liquefaction process, LNG should be produced through the liquefaction process by supplying natural gas. In order to supply the LNG to the ship F, the liquefied petroleum gas is supplied to the LNG terminal LT so as to be supplied to the ship F, The LNG can be loaded into the reactor. However, there is a limit to the size of the vessel F that can be moored to the LNG terminal LT according to the facilities of the LNG terminal LT. This embodiment is characterized in that the performance of the vessel F LNG is supplied to vessel F through LNG carrier (LC) so that LNG can be loaded for testing.

The coastal gas testing method of this embodiment includes: 1) mooring a ship F on the coast; 2) loading LNG in the LNG carrier (LC) in the LNG terminal (LT); 3) navigating the LNG carrier (LC) to bring it closer to the vessel (F); 4) supplying LNG from the LNG carrier (LC) to the ship F; And 5) testing the liquefaction process of the ship F by regasification of the LNG supplied to the ship F. Prior to the step 4) described above, 4a) the LNG approaching the vessel F a step of connecting the manifold of the carrier LC and the loading arm of the ship F is carried out.

The ship F can be moored to the coast by a single point mooring (SPM), turret mooring, spread mooring or tug boat mooring method. FIG. 2 shows a case where the SPM The ship F is shown in a schematic manner.

SPM is prepared on the coast, and it is possible to carry out the performance test by mooring various ships and offshore structures before the ship (F) is put into the operating area.

LNG carrier (LC) is chartered to load LNG from the LNG terminal (LT), move the ship (F) to the moored coast, and load the loading arm of the ship (F) and the LNG carrier To the manifold. The LNG is supplied from the storage tank of the LNG carrier LC to the LNG storage tank T of the ship F through the loading arm of the ship F via the manifold. The LNG stored in the LNG storage tank T may be pumped and regenerated by the gas supply module 200 to test the liquefaction process of the ship F. [

Although the size or type of the ship F capable of testing the liquefaction process is not limited by the present embodiment, the ship F having a length over all of 300 to 700 m and being difficult to moor to the existing LNG terminal LT The present embodiment can be applied to the performance test. In this embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) facility for liquefying and liquefying natural gas. However, the ship F may be a ship or an ocean structure It can also be applied to testing.

Preferably, in the present embodiment, the vessel F can be tested for liquefaction with regasified LNG through a gas supply module 200 removable to vessel F, (200) will be described later.

3 schematically shows the concept of providing a detachable gas supply module 200 on top of a deck D in accordance with a second embodiment of the present invention to test the liquefaction process of the ship F. [

3, a method for testing a liquefying process of a vessel F provided with a liquefaction processing apparatus includes the steps of disposing a detachable gas supply module on a deck D of a vessel F, And the LNG stored in the LNG storage tank T of the vessel F is regenerated in the gas supply module 200 to test the liquefaction processing apparatus 100 of the vessel F. [ A method of testing a liquefaction process of the ship F is provided.

Since the ship F is a floating structure capable of performing the production, liquefaction and storage processes of natural gas, all the facilities capable of performing these processes in a limited space must be mounted. Therefore, in the present embodiment, in order to secure space in the vessel F, a gas supply module (not shown), which modularizes the regenerator so that the plant equipment such as the liquefaction process unit 100 can be detached when the performance test of normal operation is completed, A method of testing a liquefaction process using the liquefier 200 is presented. The test method of the present embodiment can be performed by supplying LNG from the LNG carrier (LC) with the ship F moored along the coast as in the first embodiment.

The test method of the second embodiment includes: 1) a step of disposing a gas supply module 200 on the deck D of the vessel F and connecting the gas supply module 200 to the LNG storage tank T and the liquefaction processing apparatus 100; 2) a regeneration step of supplying the LNG from the LNG storage tank T of the ship F to the gas supply module 200 and re-supplying the LNG to the gas supply module 200; And 3) feeding the regasified LNG to the liquefaction process unit 100 to test the liquefaction process unit 100, and 4) performing the liquefaction of the re-liquefied LNG in the liquefaction process to the LNG storage And storing it in the tank T.

The gas supply module 200 used in the test method of the present embodiment is detachably attachable to the ship F so that the LNG storage tank T ) And the liquefying process apparatus (100).

When the gas supply module 200 is connected to the ship F, the above-described regeneration step is performed as follows: 1) LNG is supplied from the LNG storage tank T of the ship F and stored in the suction drum 220 ; 2) a compression step of receiving and compressing LNG from the suction drum 220; The LNG stored in the LNG storage tank T may be transferred to a pump tower (not shown) provided in the LNG storage tank T, and the LNG stored in the LNG storage tank T may be transferred to the LNG storage tank T through a heat exchange step of exchanging the compressed LNG with seawater, (Not shown).

An LNG storage tank T capable of storing the LNG produced by the ship F is provided under the deck D of the ship F. Inside the LNG storage tank T, A pump tower (not shown) provided with various kinds of pumps may be provided. In the storing step, the LNG is pumped through the pump P provided in the pump tower (not shown) and is stored in the suction drum 220 of the gas supply module 200. The suction drum 220 provided in the gas supply module 200 is a tank in which the LNG to be regenerated can be temporarily stored.

The LNG temporarily stored in the suction drum 220 is regenerated into a gaseous state through heat exchange with seawater through a compression step, and supplied to the liquefying and processing apparatus 100 and re-liquefied through the liquefaction step, thereby performing a performance test of the liquefaction process.

The liquefaction processing apparatus 100 in the first to sixth embodiments may be a device in which a liquefaction process of natural gas is performed using nitrogen (N ₂ ) by a Niche dual expander method (Niche process). If the temperature of the natural gas to be introduced into the liquefying and processing apparatus 100 should be high, the seawater to be heat-exchanged with the LNG is heated before the heat exchange, or before the LNG regenerated by the seawater is supplied to the liquefaction processing apparatus 100 It can be heated.

The structure of the detailed gas supply module 200 and the method of installing the gas supply module 200 on the ship F will be described in the following embodiments.

The size and type of the ship F capable of testing the liquefaction process through the test method of the present embodiment are not limited. However, as in the first embodiment, the length of the ship F is 300 to 700 m, LT can be performed on the coast by the SPM method and the performance of the liquefaction process can be performed by applying the present embodiment. In this embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) facility in which natural gas is mined and liquefied, but may also be applied to testing of other ships or offshore structures have.

Fig. 4 schematically shows a gas supply module 200 for liquefaction process test according to a third embodiment of the present invention.

As shown in FIG. 4, according to a third embodiment of the present invention, a gas supply module 200 for testing a liquefaction process of a ship F equipped with a liquefaction process apparatus, comprising: a module body 201; And a regenerator (210) provided inside the module body (201) for recovering LNG from the LNG storage tank (T) of the ship (F) and being detachable to the ship (F) F) for liquefaction process test is provided.

The regenerator 210 may regenerate the LNG by exchanging heat with the seawater. To this end, the gas supply module 200 includes a seawater supply unit 230, and the seawater supply unit 230 includes a regenerator 210, And a seawater discharge pipe 233 for discharging the heat-exchanged seawater. The seawater supply pipe 232 is connected to the regenerator 210 to regulate the amount of seawater introduced into the regenerator 210 A seawater supply valve 234 may be provided.

6 to 8 bar of seawater can be supplied to the seawater supply pipe 232 of the gas supply module 200 through the seawater pump SP provided on the ship F. For this purpose, SP and the sea water supply pipe 232 of the gas supply module 200 may be connected through a pipe (not shown) and a flange (not shown).

The gas supply module 200 includes a high pressure pump 240 provided at a front end of the regenerator 210 for compressing the LNG and a high pressure pump 240 provided at the downstream end of the regenerator 210 to regenerate the LNG, The regeneration gas supply unit 250 includes an expansion joint unit 251 provided at a rear stage of the regeneration unit 210 and a regeneration gas supply unit 250 for supplying the regeneration gas to the expansion joint unit 250. [ And a gauge unit 252 provided at a rear end of the LNG 251 to measure the temperature and pressure of the regenerated LNG.

A flow control valve (not shown) and a safety valve (not shown) may be provided between the front end of the regenerator 210 and the high-pressure pump 240 to regulate the flow rate of the LNG introduced into the regenerator 210, (Not shown) for returning the LNG exceeding the flow rate introduced into the high-pressure pump 210 to the suction side of the high-pressure pump 240 may be provided.

The expansion joint 251 is provided to absorb the displacement due to the expansion when the LNG is regenerated by the regenerator 210 with the seawater and is also provided at the front end of the regenerator 210.

In this embodiment, a liquefaction process using a Niche process can be performed. The natural gas produced in the gas well is discharged from the topside of the ship F by a series of gases such as acid gas removal, dehydration, desulfurization, And then introduced into the liquefying and processing apparatus 100 in a natural gas state at a temperature of about 50 to 80 DEG C and a pressure of about 40 to 80 bar to carry out the liquefaction process. Therefore, in the gas supply module 200, regenerated LNG must be supplied corresponding to the temperature and pressure conditions of the natural gas, so that the performance test of the liquefaction processing apparatus 100 can be performed properly. For this purpose, a high-pressure pump 240 is provided in this embodiment, and the high-pressure pump 240 compresses the LNG at 40 to 80 bar, preferably 50 to 70 bar, and more preferably 60 to 65 bar. The gas supply module 200 is provided with a gauge section 252 to measure whether the temperature and pressure of the regenerated LNG through the regenerator 210 meet the temperature and pressure conditions required for the liquefaction process apparatus 100 do.

A suction drum 220 in which LNG is stored may be provided in the front end of the high pressure pump 240 in the gas supply module 200. The LNG storage tank T may be provided with a suction tower 220, LNG from the tank T is regenerated in the regenerator 210 via the suction drum 220 and the high-pressure pump 240.

The suction drum 220 temporarily stores the LNG as described in the above embodiment and is connected to the LNG storage tank T of the ship F through a pump tower provided for loading and unloading the LNG, The LNG pumped in the storage tank T is supplied to the suction drum 220 of the gas supply module 200. A globe valve (not shown) and a check valve (not shown) are provided in the pipe connecting the LNG storage tank T and the suction drum 220 so that the LNG supply can be controlled. A pressure gauge (not shown) and a safety valve (not shown) may be provided.

5 is a schematic view showing a flow in which a gas supply module 200 according to a third embodiment of the present invention is provided in a vessel F provided with a liquefaction processing apparatus 100 of a Niche process, Respectively.

The size and type of the ship F provided with the gas supply module 200 of the present embodiment and capable of performing the performance test of the liquefaction processing apparatus 100 are not limited, but as in the first and second embodiments, It is possible to carry out the liquefaction process performance test by applying the present embodiment by mooring the ship F having a length over all of 300 to 700 m, which is difficult to berth to the existing LNG terminal LT, to the coast by the SPM method. In the present embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) facility in which natural gas is mined and liquefied, It can also be applied to testing. Since the gas supply module 200 of the present embodiment is modularized and can be detachably attached to the ship F, it can be detached and attached to other ships or offshore structures after the performance test is completed.

FIG. 6 schematically shows an arrangement of a ship F according to the test module installation method of the ship F of the fourth embodiment of the present invention, and FIG. 7 is a plan view thereof viewed from above.

6 and 7, according to a fourth embodiment of the present invention, there is provided a test module installation method for a ship F provided with a liquefaction process apparatus, which comprises: a liquefaction process device 100 is placed on top of the deck D of the vessel F and a detachable gas supply module 200 for supplying natural gas for testing the liquefaction processing apparatus 100 is connected to the deck D of the vessel F, There is provided a test module installation method for a ship F disposed at the entrance side of the liquefaction processing apparatus 100 from above.

Since the gas supply module 200 in the first to sixth embodiments is detachable, the fourth embodiment shows a method of installing the gas supply module 200 in the vessel F for performing an effective test in the performance test do.

In this embodiment, a plurality of liquefying process apparatuses 100 are disposed on the topside of the deck D of the vessel F, and the gas supply module 200 is disposed between the top of the deck D and the liquefaction process apparatus 100 For example, in a safety gap (SG) or in a laydown area.

The space SG may be an interval, for example, a safety gap, required to maintain safety between plant facilities for LNG production disposed on the topside of the ship F as shown in FIGS. Since the gas supply module 200 is a device for testing the performance of the liquefaction process unit 100 among the plant facilities in the present embodiment, it is installed in the space SG provided between the plurality of liquefaction process units 100, Performance tests of the various liquefying process apparatus 100 modules can be performed without further movement of the supply module 200. [

The gas supply module 200 is provided with a connection part 300 and the connection part 300 is provided on the upper part of the LNG storage tank T and the deck D provided below the deck D of the ship F The gas supply module 200 supplies the LNG from the LNG storage tank T and regenerates the LNG to the liquefaction process unit 100. The LNG storage tank T is connected to the liquefaction process unit 100, Supply.

The gas supply module 200 is connected to the LNG storage tank T through the connection unit 300 so that the LNG storage tank T of the ship F can receive the LNG to be regenerated, (Not shown) and a flange (not shown). The gas supply module 200 is connected to the liquefaction process unit 100 through a pipe (not shown) and a flange (not shown), and supplies the regasified LNG to the liquefaction process unit 100 for performance testing.

Although the size or type of the ship F on which the test module for performing the performance test of the liquefying and processing apparatus 100 can be installed is not limited by the method of this embodiment, as in the first to third embodiments, It is possible to carry out the liquefaction process performance test by applying the present embodiment by mooring the ship F having a length over all of 300 to 700 m, which is difficult to berth to the existing LNG terminal LT, to the coast by SPM method. In the present embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) facility in which natural gas is mined and liquefied, It can also be applied to testing. According to the present embodiment, since the gas supply module 200 installed on the vessel F can be detachably attached to the vessel F, it can be detached and attached to another ship or an offshore structure to be reused when the performance test is completed.

8 schematically shows a liquefaction process apparatus 100 test system for a ship F according to a fifth embodiment of the present invention.

8, a liquefaction process apparatus 100 test system for a ship F according to a fifth embodiment of the present invention is a system for testing a liquefaction process apparatus 100 of a ship F, And a gas supply module 200 provided on the coast and mooring the ship F and supplying the liquefied natural gas (LNG) to the liquefaction processing apparatus 100 of the ship F moored to the mooring device, The supply module 200 is detachably attachable to the vessel F. [

Preferably, the mooring device (SPM) is a device for mooring the ship F in a single point mooring manner by being fixed to the seabed of the coast. Such a mooring device comprises a base plate BP fixed to the seabed of the coast, A column portion provided on the upper portion of the plate BP and projecting on the sea surface and a mooring connection portion CP provided at the column portion CL and connected to the ship F to moor the ship F can do.

It is advisable that these ships (F) constructed in the shipyard are checked for their normal operation at the coast near the shipyard and subjected to a performance test before being installed in the gas field or delivered to the shipowner. In order to perform the performance test of the ship (F), especially the performance test of the liquefaction process, LNG should be produced through the liquefaction process by supplying natural gas. In order to supply LNG to the vessel F, it is necessary to feed the LNG to the LNG terminal so that the LNG can be supplied to the vessel F. In this case, Can be loaded. However, as described above, there is a limit in the size of the ship F that can be moored to the LNG terminal according to the facilities of the LNG terminal. The system of the present embodiment is not limited to the size of the ship F without adding the existing LNG terminal (SPM) on the coast for performance testing. As described above, the present embodiment provides a system for performing a performance test of a ship F on a coastal moor through a mooring device.

The SPM, in particular the base plate BP and the column part CL, is installed on the coast and continuously exposed to seawater and sea breeze in the sea, so that it can be made of corrosion resistant material, for example, concrete.

The ship (F) moored on the coast as a mooring device can receive LNG from ship to ship from LNG carrier, store it in LNG storage tank (T), and reassemble it to gas test.

The gas supply module 200 supplies the LNG stored in the LNG storage tank T of the vessel F to regenerate the LNG and supplies the LNG to the liquefaction process unit 100 and the test of the liquefaction process unit 100 The re-liquefied LNG may then be stored in the LNG storage tank (T). The gas supply module 200 may include a space provided between the liquefying process units 100 on the deck D of the ship F, for example, a lay down area on the topside of the ship F, or a safety gap As shown in FIG.

The description of the gas supply module 200 in the present embodiment is replaced with the third embodiment and in this system the gas supply module 200 is provided with the LNG to be regenerated from the LNG storage tank T of the ship F And the connection unit 300 may include a connection pipe (not shown) and a flange (not shown) for supplying the LNG storage tank T and the LNG storage tank T through the connection unit 300. The gas supply module 200 is connected to the liquefaction process unit 100 through a pipe (not shown) and a flange (not shown), and supplies the regasified LNG to the liquefaction process unit 100 for performance testing.

The LNG stored in the LNG storage tank T is supplied to the gas supply module 200 arranged on the topside of the ship F through a pump P provided in the LNG storage tank T of the ship F and a pipe ), Through which it is possible to confirm whether the pump (P) is installed, whether the pump (P) is normally operated, and whether the pipe is leaked.

Preferably, vessel F may be a floating oceanic structure floating on the sea, and more preferably, the floating oceanic structure may be FLNG comprising LNG-FPSO. Although the size and type of the ship F that can be tested and applied to the system of the present embodiment are not limited, the length of the ship F is 300 to 700 m as in the first to fourth embodiments, The ship F which is difficult to berth on the terminal can be moored to the mooring device by the SPM method on the coast to perform the liquefaction process performance test. In the present embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) system in which natural gas is mined and liquefied. However, in the case where the liquefaction processing apparatus 100 is provided, (F) or offshore structures.

Fig. 9 schematically shows a coastal gas test system for a ship F according to a sixth embodiment of the present invention.

9, the coastal gas test system of the ship F according to the sixth embodiment of the present invention is provided in the coastal area of the ship F of the ship F provided with the liquefaction processing apparatus 100 A test bed TB on which a ship F is placed to test the liquefying process apparatus 100 and a mooring section M for mooring the ship F disposed on the test bed TB, And a gas supply module 200 which is supplied with LNG from the LNG storage tank T of the vessel F and regenerated and supplied to the liquefaction processing apparatus 100 and detachably attached to the vessel F. [

This embodiment is a system for gas testing of a ship (F), particularly a ship (F) requiring a gas trial for hull and topside related equipment and systems after drying, for performance testing of a dried vessel (F) (TB) on the coast and mooring the ship (F) to test the gas.

In this embodiment, the mooring portion M is fixed to the seabed of the coast so that the ship F can be moored by the single point mooring method. Preferably, the mooring portion M is provided on the base plate A column part provided on the upper part of the base plate BP and protruding on the sea surface and a mooring part provided on the column part CL and connected to the ship F to moor the ship F, And may be a mooring device including a connection part (CP).

The test bed TB and the mooring unit M of this embodiment can be provided on the coast near the shipyard. Especially, the test bed TB and the mooring unit M of the present embodiment can be tested by mooring a large special ship F, Is preferably provided along the coast of the sea. The mooring unit M, that is, the mooring unit is provided in the coastal area and can be used semi-permanently in the gas trial of the ship F. For this purpose, the mooring unit, especially the base plate BP and the column portion CL, Since it is exposed to seawater and sea breeze at sea, it is preferable that it is made of corrosion resistant material, for example, concrete.

The gas supply module 200 supplies the LNG stored in the LNG storage tank T of the vessel F to regenerate the LNG and supplies the LNG to the liquefaction process unit 100 and the test of the liquefaction process unit 100 The re-liquefied LNG may then be stored in the LNG storage tank (T). The gas supply module 200 is disposed in a space provided between the deck D of the vessel F and the liquefaction processing apparatus 100 and the LNG storage tank T of the vessel F is provided with a gas supply module 200 A pump P for supplying LNG may be provided.

The detailed description of the gas supply module 200 is replaced with the embodiments described above.

The space SG may be an interval necessary to maintain safety between plant facilities for LNG production disposed on the topside of the ship F, for example, lay down area or safety gap. The gas supply module 200 supplies the regenerated LNG to the liquefaction process unit 100 of the plant facility for the performance test so that the space SG is provided between the plurality of liquefaction process units 100, It is possible to perform the performance test of the various liquefaction process units 100 without further movement of the gas supply module 200.

The gas supply module 200 is connected to the LNG storage tank T through a pipe (not shown) and a flange (not shown) as in the above-described embodiment and is supplied from the pump P in the LNG storage tank T to the LNG And supplied to the liquefying and processing apparatus 100. As a result of performing the gas trial by connecting to the LNG storage tank T, the installation and normal operation of the pump P and the piping provided in the LNG storage tank T as well as the liquefaction process apparatus 100, Performance and so on. Therefore, the system of the present embodiment can contribute to the test of the performance of the hull and topside system of the ship F and securing the reliability of the ship owner through the test.

Particularly, in this embodiment, the ship F can be moored through the test bed TB and the mooring section M provided on the coast, and the LNG can be supplied from the land, LNG terminal or the like near the coast, (F) can be tested semi-permanently.

As in the previous embodiments, the vessel F of the present embodiment can be a floating oceanic structure that floats on the sea, and more preferably, it can be an FLNG including LNG-FPSO. In particular, the system of the present embodiment can perform a performance test by mooring a ship F whose length is over 300 to 700 m, which is difficult to berth to a conventional LNG terminal, on the coast. In the present embodiment, the ship F may be an LNG-FPSO (Floating Production, Storage and Offloading) system in which natural gas is mined and liquefied. However, in the case where the liquefaction processing apparatus 100 is provided, (F) or offshore structures.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.

F: Ship
D: Deck
LC: LNG carrier
LT: LNG terminal
SPM: Mooring device for single point mooring
SG: space (for example, safety gap)
T: LNG storage tank
P: Pump
SP: Seawater pumps
M: Mooring section
BP: Base plate
CL: Column section
CP: Mooring connection
TB: Testbed
100: Liquefaction process equipment
200: gas supply module
201: Module body
210: Regenerator
220: Suction drum
230: Seawater supply unit
232: Sea water supply piping
233: Seawater discharge piping
234: Seawater supply valve
240: High pressure pump
250: regasification gas supply unit
251:
252: Gage Branch
300: connection

Claims (7)

1. A coastal test system for a ship having a liquefaction processing apparatus,
A test bed provided on the coast and on which the vessel is placed to test the liquefaction process apparatus;
A mooring section for mooring the ship disposed in the test bed; And
And a gas supply module for supplying LNG from the LNG storage tank of the ship to the liquefaction process unit. The method according to claim 1,
Wherein the mooring unit is fixed to a seabed of the coast and mooring the ship in a single point mooring manner. 3. The apparatus of claim 2, wherein the mooring portion
A base plate fixed to the seabed of the coast;
A column portion provided on the base plate and projecting on the sea surface; And
And a mooring connection part provided on the column part and connected to the ship to moor the ship. The method according to claim 1,
The LNG stored in the LNG storage tank of the ship is supplied to the liquefying process unit, and the liquefied LNG that has been re-liquefied is stored in the LNG storage tank,
Wherein the gas supply module is removably attachable to the vessel. 5. The method of claim 4,
Wherein the gas supply module is disposed in a space provided between the liquefaction processing apparatuses on the deck of the ship,
Wherein the LNG storage tank of the ship is provided with a pump for supplying LNG to the gas supply module. The method according to claim 1,
Wherein the ship includes a floating offshore structure floating on the sea. The method according to claim 6,
Wherein the floating offshore structure is an FLNG including LNG-FPSO.

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